U.S. patent application number 12/308857 was filed with the patent office on 2009-12-10 for apparatus and system for simulating of shooting a grenade launcher.
This patent application is currently assigned to KOREA ELECOM. Invention is credited to Dae Hyun Kang, Kang Hoon Lee, Seung Chan Lim, In-Chan Paek.
Application Number | 20090305197 12/308857 |
Document ID | / |
Family ID | 38845762 |
Filed Date | 2009-12-10 |
United States Patent
Application |
20090305197 |
Kind Code |
A1 |
Lim; Seung Chan ; et
al. |
December 10, 2009 |
Apparatus and System For Simulating of Shooting a Grenade
Launcher
Abstract
A grenade launcher simulation apparatus and a grenade launcher
simulation system are provided. The grenade launcher simulation
system includes a grenade launcher simulation apparatus, a central
control device, and at least one or more personal sensing
terminals. When shooting information according to shooting of the
grenade launcher simulation apparatus is received, the personal
sensing terminal to which the personal sensing terminal is
registered transmits impact point location information to the
central control device or the personal sensing terminal. The
central control device transmits the received impact point location
information to other personal sensing terminals, and the personal
sensing terminals that receive the impact point location
information personal sensing terminal compare location information
of the personal sensing terminals with the impact point location
information to generate damage information and transmit the damage
information to the central control device or the personal sensing
terminal to which the grenade launcher simulation apparatus is
registered. The personal sensing terminal that receives the damage
information displays shooting location and damage location of the
personal sensing terminal and damage location on a display unit.
Accordingly, it is possible to simulate an actual grenade launcher
by using a wireless communication network.
Inventors: |
Lim; Seung Chan; (Seoul,
KR) ; Paek; In-Chan; (Incheon, KR) ; Lee; Kang
Hoon; (Seoul, KR) ; Kang; Dae Hyun; (Seoul,
KR) |
Correspondence
Address: |
THE NATH LAW GROUP
112 South West Street
Alexandria
VA
22314
US
|
Assignee: |
KOREA ELECOM
Seoul
KR
|
Family ID: |
38845762 |
Appl. No.: |
12/308857 |
Filed: |
June 21, 2007 |
PCT Filed: |
June 21, 2007 |
PCT NO: |
PCT/KR2007/003009 |
371 Date: |
December 24, 2008 |
Current U.S.
Class: |
434/16 |
Current CPC
Class: |
F41F 1/06 20130101; F41C
27/06 20130101; F41A 33/00 20130101 |
Class at
Publication: |
434/16 |
International
Class: |
F41A 33/00 20060101
F41A033/00 |
Foreign Application Data
Date |
Code |
Application Number |
Jun 29, 2006 |
KR |
10-2006-0059587 |
Claims
1-19. (canceled)
20. A personal sensing terminal comprising: a memory which stores
identification information of the personal sensing terminal and
identification information of an grenade launcher simulation
apparatus allocated to the personal sensing terminal; a GPS signal
receiver which receives GPS location information; a communication
interface which receives and transmits signals in a wire or
wireless manner in accordance with a predetermined protocol; a
controller which controls whole operations, wherein the controller
comprises a shooting information transmission module, and wherein,
when shooting information and identification information of an
external grenade launcher simulation apparatus are received from
the grenade launcher simulation apparatus through the communication
interface, the shooting information transmission module determines
a current location of the personal sensing terminal from the GPS
signal receiver, calculates a impact point location based on the
shooting information and the current location information, and
transmits information on the impact point location through the
communication interface.
21. The personal sensing terminal according to claim 20, wherein
the communication interface includes a first communication
interface which receives and transmits signals in accordance with a
predetermined first protocol, and a second communication interface
which receives and transmits signals in accordance with a
predetermined second protocol, and wherein, when shooting
information and identification information of an external grenade
launcher simulation apparatus are received from the grenade
launcher simulation apparatus through the first communication
interface, the shooting information transmission module determines
a current location of the personal sensing terminal from the GPS
signal receiver, calculates a impact point location based on the
shooting information and the current location information, and
transmits information on the impact point location through the
second communication interface.
22. The personal sensing terminal according to claim 20, wherein
the controller of the personal sensing terminal further comprises a
location information transmission module and a DGPS module, and
wherein the location information transmission module receives a GPS
signal through a GPS signal receiver, receives error information of
the GPS signal through the DGPS module, acquires accurate location
information by correcting the GPS signal based on the error
information, and transmits the acquired location information.
23. The personal sensing terminal according to claim 20, wherein
the controller of the personal sensing terminal further comprises a
damage information transmission module, and wherein, when the
information on the impact point location according to shooting of
the grenade launcher simulation apparatus is received, the damage
information transmission module compares the received information
on the impact point location with the information of the personal
sensing terminal to determine death or damage of a shooter of the
personal sensing terminal, generates damage information, and
transmits the damage information.
24. The personal sensing terminal according to claim 23, wherein,
after generating the damage information, the damage information
transmission module acquires a communication preemption right
through communication to other neighboring personal sensing
terminals and transmits the damage information.
25. The personal sensing terminal according to claim 20, wherein
the controller of the personal sensing terminal further comprises a
shooting result reporting module, wherein the personal sensing
terminal further comprises a display unit, and wherein, when damage
information according to shooting of a grenade launcher simulation
apparatus registered to the personal sensing terminal is received,
the shooting result reporting module extracts damage location
information from the damage information and displays the current
location of the personal sensing terminal and the damage location
on the display unit.
26. The personal sensing terminal according to claim 20, wherein
the shooting information which the personal sensing terminal
receives from the external grenade launcher simulation apparatus
includes information on orientation and elevation of the grenade
launcher simulation apparatus.
27. Central control device for simulating a grenade launcher in
cooperation with a grenade launcher simulation apparatus registered
to at least one or more personal sensing terminals and an arbitrary
personal sensing terminal, the central control device comprising: a
communication interface which receives and transmits data; and a
controller which controls whole operations, wherein the controller
comprises a shooting information broadcasting module and a damage
information transmission module, wherein, when impact point
location information according to shooting of the grenade launcher
simulation apparatus is received through the communication
interface, the shooting information broadcasting module transmits
the impact point location information to the personal sensing
terminal, and wherein, when, the damage information according to
shooting of the grenade launcher simulation apparatus is received,
the damage information transmission module transmits the damage
information to the personal sensing terminal to which the grenade
launcher simulation apparatus is registered.
28. The central control device according to claim 27, wherein the
central control device further comprises a DGPS beacon signal
receiver which receives a DGPS signal used to correct error of the
GPS signal from an external DGPS base station.
29. A grenade launcher simulation system having at least one or
more personal sensing terminals of soldiers, a grenade launcher
simulation apparatus which is registered to one of the personal
sensing terminals, and a central control device which controls
whole operations, wherein the grenade launcher simulation apparatus
comprises: a first memory which stores identification information
of the grenade launcher simulation apparatus; an electronic compass
which detects an orientation and an elevation of the grenade
launcher simulation apparatus; a burst signal input unit which
receives a burst signal and transmits a operation signal based on
the burst signal; a first communication interface which receives
and transmits data; and a first controller which, when the
operation signal is received from the burst signal input unit,
transmits information on the orientation and the elevation and the
identification information to the personal sensing terminal to
which the grenade launcher simulation apparatus is registered,
wherein the personal sensing terminal comprises: a second memory
which stores identification information of the personal sensing
terminal and identification information of an grenade launcher
simulation apparatus which is registered to the personal sensing
terminal; a second communication interface which receives and
transmits data; a first GPS signal receiver which receives a GPS
signal to detect location information; and a second controller
which, when shooting information is received from the grenade
launcher simulation apparatus, calculates impact point location
based on information received from the grenade launcher simulation
apparatus and the location information of the personal sensing
terminal and transmits information on the impact point location to
another personal sensing terminal, and when impact point location
information according to shooting of the grenade launcher
simulation apparatus is received, generates damage information
associated with the personal sensing terminal based on the current
location information of the personal sensing terminal and the
impact point location information and transmits the damage
information, and wherein the central control device comprises: a
third communication interface which receives and transmits data;
and a third controller which, when impact point location
information according to shooting of the grenade launcher
simulation apparatus is received from the personal sensing
terminal, transmits the impact point location information to
another personal sensing terminal, and when damage information
according to shooting of the grenade launcher simulation apparatus
is received from the personal sensing terminal, transmits the
damage information to a personal sensing terminal to which the
grenade launcher simulation apparatus is registered, thereby
extracting damage information of the personal sensing terminals
according to shooting of the grenade launcher simulation
apparatus.
30. A grenade launcher simulation system having at least one or
more personal sensing terminals of soldiers, a grenade launcher
simulation apparatus which is registered to one of the personal
sensing terminals, and a central control device which controls
whole operations, wherein the grenade launcher simulation apparatus
comprises: a first memory which stores identification information
of the grenade launcher simulation apparatus; an electronic compass
which detects an orientation and an elevation of the grenade
launcher simulation apparatus; a burst signal input unit which
receives a burst signal and transmits a operation signal based on
the burst signal; a first communication interface which receives
and transmits data; and a first controller which, when the
operation signal is received from the burst signal input unit,
transmits information on the orientation and the elevation and the
identification information to the personal sensing terminal to
which the grenade launcher simulation apparatus is registered,
wherein the personal sensing terminal comprises: a second memory
which stores identification information of the personal sensing
terminal and identification information of an grenade launcher
simulation apparatus which is registered to the personal sensing
terminal; a second communication interface which receives and
transmits data; a first GPS signal receiver which receives a GPS
signal to detect location information; and a second controller
which, when shooting information is received from the grenade
launcher simulation apparatus, calculates impact point location
based on information received from the grenade launcher simulation
apparatus and the location information of the personal sensing
terminal and transmits information on the impact point location to
the central control device, and when impact point location
information according to shooting of the grenade launcher
simulation apparatus is received, generates damage information
associated with the personal sensing terminal based on the current
location information of the personal sensing terminal and the
impact point location information and transmits the damage
information, and wherein the central control device comprises: a
third communication interface which receives and transmits data;
and a third controller which, when impact point location
information according to shooting of the grenade launcher
simulation apparatus is received from the personal sensing
terminal, transmits the impact point location information to
another personal sensing terminal, and when damage information
according to shooting of the grenade launcher simulation apparatus
is received from the personal sensing terminal, transmits the
damage information to a personal sensing terminal to which the
grenade launcher simulation apparatus is registered, thereby
extracting damage information of the personal sensing terminals
according to shooting of the grenade launcher simulation
apparatus.
31. The grenade launcher simulation system according to claim 29,
wherein the personal sensing terminal further comprises a display
unit, and wherein, when the second controller of the personal
sensing terminal receives the damage information according to
shooting of the grenade launcher simulation apparatus, the second
controller extracts damage location based on the damage information
and displays the location of the personal sensing terminal and the
damage location on the display unit.
32. The grenade launcher simulation system according to claim 29,
wherein the central control device further comprises a DGPS beacon
signal receiver which receives a DGPS signal from an external DGPS
base station.
33. The grenade launcher simulation system according to claim 29,
wherein the personal sensing terminal further comprises an
additional second communication interface, wherein the additional
second communication interface communicates with a first
communication interface of the grenade launcher simulation
apparatus and/or a second communication interface of another
personal sensing terminal, wherein the additional second
communication interface communicates with a third communication
interface of the central control device, and wherein the second
communication interface and the additional second communication
interface use different protocols and different frequency
bands.
34. The grenade launcher simulation system according to claim 33,
wherein the second communication interface of the personal sensing
terminal and the first communication interface of the grenade
launcher simulation apparatus are communication modules which
support Zigbee communication protocol, and wherein the additional
second communication interface of the personal sensing terminal and
the third communication interface of the central control device are
RF communication modules which support RF communication
protocol.
35. The grenade launcher simulation system according to claim 29,
wherein the first communication interface, the second communication
interface, and the third communication interface are RF
communication interface which support RF communication
protocol.
36. The grenade launcher simulation system according to claim 29,
wherein the personal sensing terminal and the central control
device are synchronized to each other with reference to a time of
the GPS signal receiver, wherein the personal sensing terminal is
activated to receive data in a period of a predetermined time
interval during a time interval which is allocated to the personal
sensing terminal in each period, and wherein the central control
device transmits data during the time interval when the personal
sensing terminal is activated, thereby minimizing power consumption
of the personal sensing terminal.
Description
TECHNICAL FIELD
[0001] The present invention relates to a grenade launcher
simulation system, and more particularly, to a grenade launcher
simulation apparatus, a personal sensing terminal, a central
control device, and a grenade launcher simulation system in which
an actual grenade launching apparatus is similarly simulated using
a wireless communication network.
BACKGROUND ART
[0002] Recently, in the military training, a multiple integrated
laser battle system has been introduced to train soldiers. In the
multiple integrated battle system, the soldiers can carry out
simulated battle like an actual battle. In the multiple integrated
laser battle system, a small arms transmitter for emitting laser
beams instead of a gun barrel for shooting a bullet is provided to
a rifle such as M16 and K2 or a machine gun, and a laser sensor is
attached to a helmet or a weapon. The laser beams are shot to the
laser sensor, and the hitting is determined. In the multiple
integrated laser battle system, since a battle can be carried out
without actual killing, battle ability of soldiers and command
ability of commanders can be greatly improved.
[0003] Conventionally, there has been provided a grenade launcher
simulation system in which a grenade launcher using laser beams is
used for simulated training. An actual grenade launcher is a
howitzer of which bomb moves with a parabolic trajectory. On the
contrary, the laser beams propagate in a straight path. Therefore,
there is a problem in that the grenade launcher simulation system
using the laser beams cannot directly simulate the actual grenade
launcher.
[0004] In addition, in the actual howitzer, since the bomb moves
with a parabolic trajectory to hit over a predetermined distance,
the damaged place does exist over the predetermined distance.
However, in the grenade launcher simulation system using the laser
beams, due to the straight path, all objects in the laser path is
damaged.
[0005] In order to solve the problems, a battle simulation system
is disclosed in Korean Patent Application Publication No.
10-2002-22033. FIG. 1 is a block diagram of the battle simulation
system disclosed in the Patent Document. In the battle simulation
system disclosed in the Patent Document, in order to accurately
simulate the howitzer by using the laser beams, a complex D-CODE is
introduced, and hit location and output level are adjusted with a
complicated manner.
[0006] In addition, since the actual grenade launcher is a
howitzer, the bomb is moved over a hill or an obstacle to be
dropped on a target. However, since the laser beams emitted from
the grenade launcher simulation apparatus propagate in a straight
path, the laser beams are blocked by the hill or the obstacle, and
the grenade launcher simulation system cannot simulate such an
actual state, so that its result is different from an actual
result.
[0007] In consideration of the circumstances, the inventors propose
an approach for accurately simulating such a howitzer as a grenade
launcher by using a wireless communication network as a substitute
for laser beams.
DETAILED DESCRIPTION OF THE INVENTION
Technical Problem
[0008] In order to solve the aforementioned problems, the present
invention provides a grenade launcher simulation system using a
wireless communication network, capable of having characteristics
similar to those of an actual launcher.
[0009] The present invention also provides a high-performance
grenade launcher simulation system without influence of
communication failure.
[0010] The present invention also provides a grenade launcher
simulation apparatus, a personal sensing terminal, and a central
control device constituting the aforementioned grenade launcher
simulation system.
Technical Solution
[0011] In order to achieve the aforementioned objects, according to
a first aspect of the present invention, there is provided a
grenade launcher simulation apparatus for simulating a grenade
launcher, comprising: a memory which stores identification
information of the grenade launcher simulation apparatus; a burst
signal input unit which receives a burst signal and transmits a
operation signal; an electronic compass which detects an
orientation and an elevation; a communication interface which
receives and transmits signals in accordance with a predetermined
protocol; and a controller which, when a operation signal is
received from the burst signal input unit, receives information on
the orientation and elevation from the electronic compass,
generates a packet including the information on orientation and
elevation and the identification information of the grenade
launcher simulation apparatus, and transmits the packet through
communication interface.
[0012] According to a second aspect of the present invention, there
is provided a personal sensing terminal comprising: a memory which
stores identification information of the personal sensing terminal
and identification information of an grenade launcher simulation
apparatus allocated to the personal sensing terminal; a GPS signal
receiver which receives GPS location information; a communication
interface which receives and transmits signals in a wire or
wireless manner in accordance with a predetermined protocol; a
controller which controls whole operations, wherein the controller
comprises a shooting information transmission module, and wherein,
when shooting information and identification information of an
grenade launcher simulation apparatus are received from the grenade
launcher simulation apparatus through the communication interface,
the shooting information transmission module determines a current
location of the personal sensing terminal from the GPS signal
receiver, calculates a impact point location based on the shooting
information and the current location information, and transmits
information on the impact point location through the communication
interface.
[0013] According to a third aspect of the present invention, there
is provided a personal sensing terminal comprising: a memory which
stores identification information of the personal sensing terminal
and identification information of an grenade launcher simulation
apparatus allocated to the personal sensing terminal; a GPS signal
receiver which receives GPS location information; a first
communication interface which receives and transmits signals in
accordance with a predetermined first protocol; a second
communication interface which receives and transmits signals in
accordance with a predetermined second protocol; and a controller
which controls whole operations, wherein the controller comprises a
shooting information transmission module, and wherein, when
shooting information and identification information of an grenade
launcher simulation apparatus are received from the grenade
launcher simulation apparatus through the first communication
interface, the shooting information transmission module determines
a current location of the personal sensing terminal from the GPS
signal receiver, calculates a impact point location based on the
shooting information and the current location information, and
transmits information on the impact point location through the
second communication interface.
[0014] The personal sensing terminal according to the third aspect
may communicate with an external grenade launcher simulation
apparatus and/or another personal sensing terminal through a first
communication interface and with an external central control device
through a second communication interface.
[0015] In the personal sensing terminal according to the second and
third aspects, the controller of the personal sensing terminal may
further comprise a location information transmission module and a
DGPS module, and the location information transmission module may
receive a GPS signal through a GPS signal receiver, receive error
information of the GPS signal through the DGPS module, acquire
accurate location information by correcting the GPS signal based on
the error information, and transmit the location information.
[0016] In the personal sensing terminal according to the second and
third aspects, the controller of the personal sensing terminal may
further comprise a damage information transmission module, and when
the information on the impact point location according to shooting
of the grenade launcher simulation apparatus is received, the
damage information transmission module may compare the received
information on the impact point location with the information of
the personal sensing terminal to determine death or damage of a
shooter of the personal sensing terminal, generate damage
information, and transmit the damage information. Particularly,
after generating the damage information, the damage information
transmission module may acquire communication preemption right
through communication to other neighboring personal sensing
terminals and transmit the damage information.
[0017] In the personal sensing terminal according to the second and
third aspects, the controller personal sensing terminal may further
comprise a shooting result reporting module, the personal sensing
terminal may further comprise a display unit, and when damage
information according to shooting of a grenade launcher simulation
apparatus registered to the personal sensing terminal is received,
the shooting result reporting module may extract damage location
information from the damage information and display the current
location of the personal sensing terminal and the damage location
on the display unit.
[0018] In the personal sensing terminal according to the second and
third aspects, the shooting information which the personal sensing
terminal receives from the external grenade launcher simulation
apparatus may include information on orientation and elevation of
the grenade launcher simulation apparatus.
[0019] According to a fourth aspect of the present invention, there
is provided a central control device for simulating a grenade
launcher in cooperation with a grenade launcher simulation
apparatus registered to at least one or more personal sensing
terminals and an arbitrary personal sensing terminal, wherein the
central control device comprises: a communication interface which
receives and transmits data; a DGPS beacon signal receiver which
receives a DGPS signal for correcting error of a GPS signal
transmitted from an external DGPS base station; and a controller
which controls whole operations, wherein the controller comprises a
shooting information broadcasting module and a damage information
transmission module, wherein, when impact point location
information according to shooting of the grenade launcher
simulation apparatus is received through the communication
interface, the shooting information broadcasting module transmits
the impact point location information to the personal sensing
terminal, and wherein, when, the damage information according to
shooting of the grenade launcher simulation apparatus is received,
the damage information transmission module transmits the damage
information to the personal sensing terminal to which the grenade
launcher simulation apparatus is registered.
[0020] According to a fifth aspect of the present invention, there
is provided a grenade launcher simulation system having at least
one or more personal sensing terminals of soldiers, a grenade
launcher simulation apparatus which is registered to one of the
personal sensing terminals, and a central control device which
controls whole operations, wherein the grenade launcher simulation
apparatus comprises: a first memory which stores identification
information of the grenade launcher simulation apparatus; an
electronic compass which detects an orientation and an elevation of
the grenade launcher simulation apparatus; a burst signal input
unit which receives a burst signal and transmits a operation signal
based on the burst signal; a first communication interface which
receives and transmits data; and a first controller which, when the
operation signal is received from the burst signal input unit,
transmits information on the orientation and the elevation and the
identification information to the personal sensing terminal to
which the grenade launcher simulation apparatus is registered,
wherein the personal sensing terminal comprises: a second memory
which stores identification information of the personal sensing
terminal and identification information of an grenade launcher
simulation apparatus which is registered to the personal sensing
terminal; a second communication interface which receives and
transmits data; a first GPS signal receiver which receives a GPS
signal to detect location information; and a second controller
which, when shooting information is received from the grenade
launcher simulation apparatus, calculates impact point location
based on information received from the grenade launcher simulation
apparatus and the location information of the personal sensing
terminal and transmits information on the impact point location to
another personal sensing terminal, and when impact point location
information according to shooting of the grenade launcher
simulation apparatus is received, generates damage information
associated with the personal sensing terminal based on the current
location information of the personal sensing terminal and the
impact point location information and transmits the damage
information, and wherein the central control device comprises: a
third communication interface which receives and transmits data; a
third controller which, when impact point location information
according to shooting of the grenade launcher simulation apparatus
is received from the personal sensing terminal, transmits the
impact point location information to another personal sensing
terminal, and when damage information according to shooting of the
grenade launcher simulation apparatus is received from the personal
sensing terminal, transmits the damage information to a personal
sensing terminal to which the grenade launcher simulation apparatus
is registered.
[0021] According to a sixth aspect of the present invention, there
is provided a grenade launcher simulation system having at least
one or more personal sensing terminals of soldiers, a grenade
launcher simulation apparatus which is registered to one of the
personal sensing terminals, and a central control device which
controls whole operations, wherein the grenade launcher simulation
apparatus comprises: a first memory which stores identification
information of the grenade launcher simulation apparatus; an
electronic compass which detects an orientation and an elevation of
the grenade launcher simulation apparatus; a burst signal input
unit which receives a burst signal and transmits a operation signal
based on the burst signal; a first communication interface which
receives and transmits data; and a first controller which, when the
operation signal is received from the burst signal input unit,
transmits information on the orientation and the elevation and the
identification information to the personal sensing terminal to
which the grenade launcher simulation apparatus is registered,
wherein the personal sensing terminal comprises: a second memory
which stores identification information of the personal sensing
terminal and identification information of an grenade launcher
simulation apparatus which is registered to the personal sensing
terminal; a second communication interface which receives and
transmits data; a first GPS signal receiver which receives a GPS
signal to detect location information; and a second controller
which, when shooting information is received from the grenade
launcher simulation apparatus, calculates impact point location
based on information received from the grenade launcher simulation
apparatus and the location information of the personal sensing
terminal and transmits information on the impact point location to
the central control device, and when impact point location
information according to shooting of the grenade launcher
simulation apparatus is received, generates damage information
associated with the personal sensing terminal based on the current
location information of the personal sensing terminal and the
impact point location information and transmits the damage
information, and wherein the central control device comprises: a
third communication interface which receives and transmits data;
and a third controller which, when impact point location
information according to shooting of the grenade launcher
simulation apparatus is received from the personal sensing
terminal, transmits the impact point location information to
another personal sensing terminal, and when damage information
according to shooting of the grenade launcher simulation apparatus
is received from the personal sensing terminal, transmits the
damage information to a personal sensing terminal to which the
grenade launcher simulation apparatus is registered.
[0022] In the grenade launcher simulation system according to the
fifth and sixth aspects, the personal sensing terminal may further
comprises a display unit, and when the second controller of the
personal sensing terminal receives the damage information according
to shooting of the grenade launcher simulation apparatus, the
second controller may extract damage location based on the damage
information and display the location of the personal sensing
terminal and the damage location on the display unit.
[0023] In the grenade launcher simulation system according to the
fifth and sixth aspects, the second communication interface of the
personal sensing terminal may be a communication module for
supporting a Zigbee communication protocol and communicates with a
first communication interface of the grenade launcher simulation
apparatus and/or a second communication interface of another
personal sensing terminal, the third communication interface may be
a communication module for RF communication protocol and
communicates with a fourth communication interface of the central
control device, and the second communication interface and the
third communication interface may use different protocols and
different frequency bands.
[0024] In the grenade launcher simulation system according to the
fifth and sixth aspects, the personal sensing terminal and the
central control device may be synchronized to each other with
reference to a time of the GPS signal receiver, the personal
sensing terminal may be activated to receive data in a period of a
predetermined time interval during a time interval which is
allocated to the personal sensing terminal in each period, and the
central control device may transmit data during the time interval
when the personal sensing terminal is activated, thereby minimizing
power consumption of the personal sensing terminal.
[0025] The grenade launcher simulation apparatus, the personal
sensing terminal, the central control device, and the grenade
launcher simulation system can simulate an actual grenade launcher
by using a wireless communication network.
ADVANTAGEOUS EFFECTS
[0026] According to the present invention, an operation of a
grenade launcher (i.e., howitzer) can be accurately simulated. As a
result, it is possible to overcome a limit of a simulation system
using a laser beam which propagates in a straight line, and thus an
operation of an actual grenade launcher can be similarly simulated.
Therefore, training effectiveness can be maximized.
[0027] In addition, in a grenade launcher simulation system
according to the present invention, shot state information and/or
damage information are transmitted to a plurality of personal
sensing terminals, and each personal sensing terminal connected to
a grenade launcher simulation apparatus displays shooting result
information through an LCD screen. Thus, training can be accurately
carried out since a trainer can correctly recognize a shooting
result, and then the shooting result is fed back.
[0028] In addition, according to the grenade launcher simulation
system of the present invention, an actual grenade launcher can be
similarly simulated while minimizing a load of an overall
communication network.
DESCRIPTION OF THE DRAWINGS
[0029] FIG. 1 is a block diagram of a conventional battle
simulation system.
[0030] FIG. 2 is a block diagram of a grenade launcher simulation
apparatus according to the present invention.
[0031] FIG. 3 is a block diagram of a personal sensing terminal
according to the present invention.
[0032] FIG. 4 is a block diagram of a central control device
according to the present invention.
[0033] FIG. 5 is an overall view of a grenade launcher simulation
system according to a first embodiment of the present
invention.
[0034] FIG. 6 is a flow diagram illustrating an operation of a
grenade launcher simulation system according to a first embodiment
of the present embodiment.
[0035] FIG. 7 illustrates an example of a shooting result displayed
on a display unit of a grenade launcher simulation apparatus of a
grenade launcher simulation system according to a first embodiment
of the present embodiment.
[0036] FIG. 8 is a flowchart illustrating an operation of a grenade
launcher simulation system according to a second embodiment of the
present invention.
[0037] FIG. 9 is a flowchart illustrating an operation of a grenade
launcher simulation system according to a third embodiment of the
present invention.
[0038] FIG. 10 is a time chart illustrating an operation of a
grenade launcher simulation system according to a first embodiment
of the present invention.
BEST MODE
[0039] Grenade Launcher Simulation Apparatus
[0040] Hereinafter, a structure and operation of a grenade launcher
simulation apparatus 200 according to exemplary embodiments of the
present invention will be described with reference to FIG. 2. FIG.
2 is a block diagram illustrating a structure of the grenade
launcher simulation apparatus 200.
[0041] According to an embodiment of the present embodiment, the
grenade launcher simulation apparatus 200 has the same structure as
an actual grenade launcher, and operates when a shooter pulls a
trigger.
[0042] When the shooter manipulates the grenade launcher simulation
apparatus to operate, shooting information (e.g., orientation and
elevation) of the grenade launcher simulation apparatus is sent to
a personal sensing terminal in which the grenade launcher
simulation apparatus is registered.
[0043] Referring to FIG. 2, the grenade launcher simulation
apparatus 200 includes a controller 202, a burst signal input unit
204, a Zigbee communication module 206, an electronic compass 208,
and a memory 209.
[0044] The burst signal input unit 204 receives a burst signal when
a trigger is pulled by a shooter. At the same time, an operation
signal is transmitted to the controller 202.
[0045] The electronic compass 208 detects information on
orientation and elevation of the grenade launcher simulation
apparatus. The controller 202 collects the information on
orientation and elevation from the electronic compass.
[0046] The Zigbee communication module 206 supports a Zigbee
communication protocol. Further, the Zigbee communication module
206 can transmit/receive data to/from the personal sensing terminal
in which the grenade launcher simulation apparatus is
registered.
[0047] The memory 209 stores and manages an identification number
which is assigned in an initial registration process by the
personal sensing terminal of a soldier who carries the grenade
launcher simulation apparatus.
[0048] The controller 202 provides overall control to the grenade
launcher simulation apparatus. The controller 202 includes a
shooting information transmission module 2021 and an initial
registration module 2023.
[0049] Upon receiving the operation signal from an external element
through the burst signal input unit 204, the shooting information
transmission module 2021 of the controller 202 receives from the
electronic compass 208 the information on orientation and elevation
of the grenade launcher simulation apparatus. A packet including
the received information and identification information stored in
the memory 209 is generated and transmitted through the Zigbee
communication module 206 to the personal sensing terminal in which
the grenade launcher simulation apparatus is registered.
[0050] Upon receiving the identification number and a registration
request signal from the external personal sensing terminal, the
initial registration module 2023 of the controller 202 stores the
received identification number to the memory 209. The
identification number includes a network identification number
which is the same as that of the personal sensing terminal
transmitting the registration request signal. The identification
number for the grenade launcher simulation apparatus is also stored
and registered in the memory of the personal sensing terminal
transmitting the registration request signal.
[0051] According to another embodiment of the present invention,
the grenade launcher simulation apparatus may further include a
display unit, and the controller 202 further includes a shooting
result display module 2025. When damage information resulted from
shooting of the personal sensing terminal, in which the grenade
launcher simulation apparatus is registered, is received, the
shooting result display module 2025 of the controller 202 displays
on the display unit a current location and a shot location
depending on the damage information. As a result, the shooter who
operates the grenade launcher simulation apparatus can check his or
her shooting result on a real time basis through the display
unit.
[0052] Personal Sensing Terminal
[0053] Now, a structure and operation of a personal sensing
terminal 220 according to exemplary embodiments of the present
invention will be described in detail with reference to FIG. 3.
FIG. 3 is a block diagram of the personal sensing terminal 220
according to an embodiment of the present invention.
[0054] Referring to FIG. 3, the personal sensing terminal 220,
which is equipment carrier by all solders who participate in
training, includes a controller 221, a wireless communication
interface 222, a GPS signal receiver 223, a DGPS module 224, a
state reporting unit 225, a display unit 226, a memory 227, and a
Zigbee communication module 229.
[0055] The wireless communication interface 222 wirelessly
transmits/receives data to/from an external central control device.
The wireless communication interface 222 may be integrated into the
personal sensing terminal 220 together with other components, or
may be manufactured physically separately from other components. If
the wireless communication interface is manufactured physically
separately from other components of the personal sensing terminal,
the wireless communication interface is preferably wired-connected
to the controller of the personal sensing terminal.
[0056] The Zigbee communication module 229 transmits and receives a
signal according to a Zigbee communication protocol. By using the
Zigbee communication module 229, data communication can be achieved
with respect to adjacent personal sensing terminals or with respect
to firing machines such as the grenade launcher simulation
apparatus which is registered in the personal sensing terminal. The
Zigbee communication module 229 transmits/receives data to/from an
element which is located closer than the wireless communication
interface 222.
[0057] The display unit 226 includes a panel (e.g., LCD, PDP, etc.)
and displays a screen transmitted from the controller. In
particular, under the control of the controller, a shot location
depending on the shooting of the grenade launcher simulation
apparatus and a current location are displayed on the display unit,
so that the shooting result of the grenade launcher simulation
apparatus can be reported to a desired soldier.
[0058] The GPS signal receiver 223 checks the current location
information by the aid of GPS and transmits the current location
information to the controller 221. The GPS signal receiver 223 may
be integrated into the personal sensing terminal 220 together with
other components or may be manufactured physically separately from
other components. If the GPS signal receiver 223 is manufactured
physically separately from other components of the personal sensing
terminal, the wireless communication interface is preferably
wired-connected to the controller of the personal sensing
terminal.
[0059] The DGPS module 224 receives error information regarding a
GPS signal from a DBPS beacon signal receiver of the central
control device by using the wireless communication interface 222.
Further, by using the GPS error information, the DGPS module 224
corrects errors of the GPS location information received by the GPS
signal receiver 223. Thus, accurate location information is
provided to the controller 221.
[0060] The state reporting unit 225 of the personal sensing
terminal 220 is constructed of a speaker or a lamp (e.g., LED).
Under the control of the controller 221, information on an
alive-or-dead state of a solder and/or damage information and other
state information are reported to the soldier through the speaker
or the LED. In addition to the occurrence of death, the damage
information is reported even when bombing occurs nearby without
damage. Therefore, a current state is informed to the soldier
through the state reporting unit, and thus the soldier can be
provided with information to facilitate recognition of the current
state.
[0061] In an initial registration process, the memory 227 of the
personal sensing terminal 220 stores a serial number assigned to
each personal sensing terminal and identification information on
the grenade launcher simulation apparatus of a solder carrying his
or her personal sensing terminal. In addition thereto, the memory
227 may store information on other types of firing machines carried
by the solder and information on ammunitions.
[0062] The controller 221 of the personal sensing terminal 220
provides overall control to the personal sensing terminal. The
controller 221 includes a firing machine registration module 230, a
location information transmission module 232, a shooting
information transmission module 234, a damage information
transmission module 236, and a shooting result reporting module
238.
[0063] In an initial registration process, information regarding
the grenade launcher simulation apparatus of the soldier having the
personal sensing terminal 220 and information regarding other
firing machines are registered in respective personal sensing
terminals by the firing machine registration module 230 of the
controller 221. According to the firing machine registration
module, identification information on the grenade launcher
simulation apparatus carried by the soldier is stored and
registered in the memory 227 by the personal sensing terminal
carried by the soldier.
[0064] For every predetermined time period or at the request of the
central control device, the location information transmission
module 232 of the controller 221 checks information on an exact
current location by using the GPS signal receiver 223 and the DGPS
module 224 of the personal sensing terminal. Furthermore, the
location information transmission module 232 periodically transmits
the current location information to the central control device by
using the wireless communication interface. In addition, when the
central control device requests the transmission of the current
location information, the location information transmission module
232 checks and transmits the exact current location
information.
[0065] Upon receiving shooting information containing orientation
and elevation from the grenade launcher simulation apparatus
registered in the memory 227 by using the Zigbee communication
module of the personal sensing terminal, the shooting information
transmission module 234 of the controller 221 estimates an impact
point location according to a predetermined equation by using the
received information on orientation and the current location
information, and then transmits the estimated impact point location
information to an external element.
[0066] Upon receiving the impact point location information from
the external element, the damage information transmission module
236 estimates an alive-or-dead state or a damage state by using the
received impact point location information. If it is determined
that the solder is dead or is in an expected damage zone, the
damage information transmission module 236 generates damage
information and transmits it to an external element. The damage
information transmission module determines a region located within
a specific radius from an impact point as a `damage zone` in
association with death, determines a region location within a
specific radius from the damage zone as a `damage warning zone`,
and determines a region other than the damage warning zone as a
`safe zone`. The determination result is included in the damage
information. The damage information generated by the damage
information transmission module contains identification information
of a personal sensing terminal, shot firing machine information,
current location information, state information, and so on.
[0067] According to the damage information, the damage information
transmission module reports the alive-or-dead state or the damage
state through the state reporting unit of the personal sensing
terminal, so that the solder can recognize the current state. When
located in the `damage warning zone` or the like, even if there is
no damage, the damage information transmission module may report
the current state to the solder through the state reporting unit of
the personal sensing terminal.
[0068] Meanwhile, according to another embodiment of the present
invention, when the personal sensing terminal is located within the
damage zone, the damage information transmission module ensures
communication preemption right by communicating with adjacent
personal sensing terminals. Then, a personal sensing terminal
ensuring the communication preemption right transmits its damage
information to an external element. If there is no personal sensing
terminal existing within the damage zone, a personal sensing
terminal located within the damage warning zone ensures the
communication preemption right by communicating with adjacent
personal sensing terminals. Then, a personal sensing terminal
ensuring the communication preemption right transmits its damage
information to an external element.
[0069] Upon receiving damage information resulted from shooting of
the grenade launcher simulation apparatus from the external
element, the shooting result reporting module 238 extracts shooting
location information from the received damage information, and
displays on the display unit of the personal sensing terminal the
current location and the shot location. When the display unit is
included in the grenade launcher simulation apparatus, the shooting
result reporting module 238 transmits the current location
information and the shot location information to the grenade
launcher simulation apparatus. Therefore, a soldier who operates
the grenade launcher simulation apparatus decides if his or her
shooting has be accurate using the state displayed on the display
unit of the personal sensing terminal or the grenade launcher
simulation apparatus. This decision can be referenced when
determining a shooting direction and elevation.
[0070] Central Control Device
[0071] Now, a structure and operation of a central control device
210 according to exemplary embodiments of the present invention
will be described in detail with reference to FIG. 4. FIG. 4 is a
block diagram of the central control device 210 according to an
embodiment of the present invention.
[0072] Referring to FIG. 4, the central control device 210 includes
a controller 211, a wireless communication interface 212, and a
DGPS beacon signal receiver 213.
[0073] The wireless communication interface 212 wirelessly
transmits/receive a signal to/from the personal sensing
terminal.
[0074] The DGPS beacon signal receiver 213 receives error
information regarding a GPS signal from an external DGPS base
station.
[0075] The controller 211 of the central control device 210
provides overall control to the central control device. The
controller 211 includes a terminal location update module 240, a
shooting information broadcasting module 242, a shot information
transmission module 244, and a DGPS signal transmission module
246.
[0076] The terminal location update module 240 extracts current
location information from a data packet periodically received from
a personal sensing terminal, and updates location information on
the personal sensing terminal.
[0077] When impact point location information resulted from
shooting of the grenade launcher simulation apparatus is received
from the personal sensing terminal, the shooting information
broadcasting module 242 broadcasts the impact point location
information to other personal sensing terminals by using the
wireless communication interface.
[0078] When the damage information resulted from shooting of the
grenade launcher simulation apparatus is received from any one of
the personal sensing terminals, the shot information transmission
module 244 retransmits the damage information to a personal sensing
terminal in which the grenade launcher simulation apparatus is
registered.
[0079] The DGPS signal transmission module 246 repeatedly
broadcasts error information on the GPS signal transmitted to the
DGPS beacon signal receiver 213 to each personal sensing terminal
by using the wireless communication interface.
[0080] Grenade Launcher Simulation System
[0081] Now, structures and operations of the aforementioned grenade
launcher simulation apparatus and the grenade launcher simulation
system having a personal sensing terminal and a central control
device will be described in detail according to an embodiment of
the present invention.
[0082] In the grenade launcher simulation system of the present
invention, personal sensing terminals are provided to all soldiers
participating in training. Grenade launcher simulation apparatuses
are selectively provided to the soldiers. Each personal sensing
terminal is registered in the central control device by performing
an initial registration process. The initial registration process
is performed as follows.
[0083] The central control device assigns identification
information or the like to the personal sensing terminals. A
soldier carrying a grenade launcher simulation apparatus registers
the grenade launcher simulation apparatus to his or her personal
sensing terminal. For example, in the initial registration process,
in order to assign an identification number or the like, relevant
information may be transmitted to respective personal sensing
terminals by using a Zigbee communication module or an infrared
communication module.
[0084] The grenade launcher simulation apparatus operates after
each personal sensing terminal is subject to the initial
registration process.
[0085] Hereinafter, an operation of a grenade launcher simulation
system according to exemplary embodiments of the present invention
will be described in detail.
First Embodiment
[0086] Now, a structure and operation of a grenade launcher
simulation system according to a first embodiment of the present
invention will be described in detail with reference to FIG. 5.
[0087] FIG. 5 is an overall view of a grenade launcher simulation
system 500 according to the first embodiment of the present
invention. Referring to FIG. 5, the grenade launcher simulation
system 500 includes a central control device 50, personal sensing
terminals 61 to 65 attached to bodies of soldiers P1 to P5
participating in a simulation operation, and a grenade launcher
simulation apparatus 70 carried by the soldier P5.
[0088] In the grenade launcher simulation system 500 of the present
invention, all soldiers have personal sensing terminals registered
in an initial registration process. The soldier P5 has the grenade
launcher simulation apparatus 70. The grenade launcher simulation
apparatus is stored and registered in the personal sensing terminal
carried by the soldier P5.
[0089] FIG. 6 is a flow diagram illustrating an operation of a
grenade launcher simulation system according to the present
embodiment. Now, the operation of the grenade launcher simulation
system having the aforementioned structure according to the first
embodiment will be described in detail with reference to FIG.
6.
[0090] When the grenade launcher simulation apparatus operates,
shooting information (e.g., orientation and elevation) of the
grenade launcher simulation apparatus is transmitted to a personal
sensing terminal of a soldier by using a Zigbee communication
module (step 600). The personal sensing terminal estimates an
impact point location of a grenade by using its current location
information and the shooting information, and the estimated impact
point location information is transmitted to the central control
device by using the wireless communication interface (step
610).
[0091] The central control device which has received the impact
point location information broadcasts the impact point location
information to the personal sensing terminals carried by the
respective soldiers, by using the wireless communication interface
(step 620). Upon receiving the impact point location information
from the central control device, each personal sensing terminal
decides an alive-or-dead state and a damage by using the impact
point location information (step 630). Thereafter, personal sensing
terminals experiencing damage resulted from shooting communicate
with adjacent personal sensing terminals by using the Zigbee
communication module, and thus allows one personal sensing terminal
to have communication preemption right (step 640). The personal
sensing terminal having the communication preemption right
transmits its damage information to the central control device by
using the wireless communication interface (step 650).
Specifically, in step 604, one of the personal sensing terminals
located within a damage zone (i.e., in association with death) from
an impact point has the communication preemption right. If no
personal sensing terminal exists within the damage zone, a personal
sensing terminal existing in an expected damage zone has the
communication preemption right. The central control device
transmits damage information received from the personal sensing
terminal to a personal sensing terminal in which the grenade
launcher simulation apparatus is registered (step 660).
[0092] The personal sensing terminal displays the shot location and
the current location on the display unit by using the received
damage information (step 670). FIG. 7 illustrates an example of a
shooting result displayed on a display unit of a personal sensing
terminal carried by a soldier who shots a grenade using a grenade
launcher simulation apparatus according to the present invention.
Referring to FIG. 7, the display unit displays a shooter location
(i.e., position of the grenade launcher simulation apparatus),
locations of soldiers (i.e., positions of personal sensing
terminals) participating in an operation, a damage state, a path of
a grenade launched by a grenade launcher, and so on. As such,
through such information displayed on the display unit, the shooter
can decide how accurately shooting has been made. Such information
may be used as a reference after shooting.
[0093] In the grenade launcher simulation system according to the
present embodiment, an impact point location resulted from shooting
of the grenade launcher simulation apparatus is estimated by the
controller of the personal sensing terminal which has received
shooting information from the grenade launcher simulation
apparatus. The estimated impact point location is transmitted to
the central control device. However, according to another
embodiment of the grenade launcher simulation system, shooting
information of the grenade launcher simulation apparatus and
current location information regarding the personal sensing
terminal may be transmitted to the central control device, and the
impact point location may be estimated using the shooting
information and the location information received by the central
control device.
[0094] In the grenade launcher simulation system according to the
present embodiment, the central control device broadcasts the
impact point location information to each personal sensing
terminal. Each personal sensing terminal estimates an alive-or-dead
state by using the received impact point location information, and
transmits the resultant information to the central control
device.
[0095] However, according to another embodiment of the grenade
launcher simulation system, the central control device estimates an
expected damage zone by using the impact point location
information, compares location information on the expected damage
zone with current location information of each soldier, generates
information on an alive-or-dead state of each soldier and/or damage
information, and transmits the generated information to each
personal sensing terminal of each soldier. Upon receiving the
damage information, each personal sensing terminal checks an
alive-or-dead state according to the damage information, and
reports the result through the state reporting unit or the
like.
[0096] In addition, according to another embodiment of the grenade
launcher simulation system, the central control device may transmit
location information on the expected damage zone to each soldiers'
terminal. Each terminal may compare its current location
information with the received location information on the expected
damage zone, generate information on an alive-or-dead state and/or
damage information, and transmit the generated information to the
central control device.
[0097] Meanwhile, the personal sensing terminal and the central
control device of the grenade launcher simulation system according
to exemplary embodiments of the present invention are synchronized
by the GPS signal receiver. Each personal sensing terminal
periodically activates the central control device for a
predetermined time period and deactivates it for the rest of time
period. Since data is received from the central control device for
an activated time period, power consumption can be minimized.
[0098] FIG. 10 illustrates examples of time slots in personal
sensing terminals according to an embodiment of the present
invention. Referring to FIG. 10, each personal sensing terminal is
activated only for a predetermined time period (i.e., a1, a2, a3, .
. . ) so as to receive data from an external element, and thus
power consumption of the personal sensing terminal can be
minimized. A data communication method of personal sensing
terminals according to an embodiment of the present invention will
now be described in brief with reference to FIG. 10.
[0099] In FIG. 10, the reference numerals 61 to 65 indicate
personal sensing terminals. The reference numeral 50 indicates a
central control device. The reference numeral 65 indicates a
personal sensing terminal in which a grenade launcher simulation
apparatus is registered. A receiver Rx of each personal sensing
terminal is periodically activated for a predetermined time period
(i.e., a1, a2, a3, . . . ) so as to receive data from an external
element. Thus, the central control device 50 transmits data only
for a time period where the receiver of each sensing terminal is
activated. A transmitter Tx of each personal sensing terminal
transmits location information to the central control device for a
predetermined time period (i.e., b1, b2, b3, b4, and b5). The
transmitted location information is received by a receiver of the
central control device.
[0100] Upon receiving shooting information from the grenade
launcher simulation apparatus, the personal sensing terminal 65, in
which the grenade launcher simulation apparatus is registered,
estimates an impact point location and transmits a data packet c1
containing impact point location information to the central control
device. After receiving the data packet (see c2), the central
control device transmits a data packet c3 containing the impact
point location information via the transmitter (see c4, c5, c6, and
c7). The personal sensing terminal 61 ensures communication
preemption right among the respective personal sensing terminals
receiving the impact point location information from the central
control device. The personal sensing terminal 61 transmits to the
central control device a data packet dl containing damage
information, and then the central control device transmits it to
the personal sensing terminal 65 (see d4).
Second Embodiment
[0101] Now, an operation of a grenade launcher simulation system
according to a second embodiment of the present invention will be
described in detail with reference to FIG. 8. In the grenade
launcher simulation system according to the present embodiment, a
personal sensing terminal receives shooting information from a
grenade launcher simulation apparatus and transmits impact point
location information to another personal sensing terminal. The
personal sensing terminal, which has received the impact point
location information, transmits information on an alive-or-dead
state and/or damage information to a personal sensing terminal in
which the grenade launcher simulation apparatus is registered. Now,
an operation of the grenade launcher simulation system according to
the present embodiment will be described in detail.
[0102] When a shooter pulls a trigger, a burst signal input unit of
the grenade launcher simulation apparatus generates a burst signal
and transmits it to a controller. The controller transmits specific
shooting information to personal sensing terminals of soldiers each
of who carries the grenade launcher simulation apparatus, by using
a Zigbee communication module or a wireless communication interface
(step 800).
[0103] The personal sensing terminal estimates an impact point
location by using the received shooting information and its current
location information. The estimated impact point location
information is transmitted to other personal sensing terminals by
using the Zigbee communication module and the wireless
communication interface (step 810).
[0104] Each personal sensing terminal periodically checks its
location information by using the GPS signal receiver and the DGPS
module. The checked location information is transmitted to the
central control device through the wireless communication interface
(step 820).
[0105] When each personal sensing terminal receives impact point
information resulted from shooting of the grenade launcher
simulation apparatus, information on an alive-or-dead state and/or
damage information are generated by using the received impact point
location and its current location information (step 830). Next, by
using the Zigbee communication module or the wireless communication
interface, each personal sensing terminal transmits the information
on an alive-or-dead state and/or damage information to a personal
sensing terminal connected to the grenade launcher simulation
apparatus (step 840). The location information, the information on
an alive-or-dead state, and/or damage information are transmitted
to the central control device by using the wireless communication
interface (step 850).
[0106] After receiving the damage information from the personal
sensing terminals by using the Zigbee communication module and the
wireless communication interface, the grenade launcher simulation
apparatus displays a shooting result state on the display unit by
using the received information (step 860).
[0107] In the second embodiment of the present invention, when
using the Zigbee communication module, the personal sensing
terminal further includes a transmission amplifier and a reception
amplifier. Thus, even when transmission power of the Zigbee
communication module equipped into each personal sensing terminal
is weak, preferably, reception sensitivity improves.
[0108] According to the present embodiment, it is possible to
improve overall system efficiency while reducing a load of the
central control device of the grenade launcher simulation
system.
Third Embodiment
[0109] Now, a structure and operation of a grenade launcher
simulation system according to a third embodiment of the present
invention will be described in detail with reference to the
accompanying drawings. The structure and components constructing
the grenade launcher simulation system according to the third
embodiment are the same as those of the second embodiment, and a
duplicated description will be omitted.
[0110] Now, an operation of a grenade launcher simulation system
having the aforementioned structure according to the third
embodiment of the present invention will be described in detail
with reference to FIG. 9.
[0111] When the grenade launcher simulation apparatus operates,
shooting information on the grenade launcher simulation apparatus
is transmitted to a personal sensing terminal of a soldier (step
900). The personal sensing terminal estimates an impact point
location of a grenade by using its current location information and
the shooting information, and transmits the estimated impact point
location information to each personal sensing terminal by using the
Zigbee communication module (step 910).
[0112] Each personal sensing terminal periodically checks its
location information by using the GPS signal receiver and the DGPS
module. The checked location information is transmitted to the
central control device through the wireless communication interface
(step 920).
[0113] When each personal sensing terminal receives impact point
information resulted from shooting of the grenade launcher
simulation apparatus, an alive-or-dead state and/or a damage state
are examined by comparing the received impact point location with
its current location information (step 930). Next, among the
personal sensing terminals, a personal sensing terminal determined
to be `dead` ensures communication preemption right and then
transmits its location information and its damage state information
to the central control device by using the wireless communication
interface (step 940).
[0114] The central control device transmits the damage state
information and the location information on each personal sensing
terminal to a personal sensing terminal in which the grenade
launcher simulation apparatus used to shooting (step 950).
[0115] Meanwhile, a personal sensing terminal, which has received
from the central control device information on a damage state and
location of another personal sensing terminal, displays a shooting
result state to the display unit by using the received information
(step 960).
[0116] Now, a controller of a grenade launcher simulation apparatus
according to another embodiment will be described, which is
different from that of the aforementioned second and third
embodiments. The controller of the personal sensing terminal, which
has received shooting information from the grenade launcher
simulation apparatus, transmits shooting information (i.e.,
orientation and elevation) of the grenade launcher simulation
apparatus and current location information to each personal sensing
terminal. By using the received shooting information and location
information, each personal sensing terminal estimates an impact
point location, compares the estimated impact point location
information with the current location information, and generates
information on an alive-or-dead state and/or damage
information.
Fourth Embodiment
[0117] Now, a structure and operation of a grenade launcher
simulation system according to a fourth embodiment of the present
invention will be described in detail. In the fourth embodiment of
the present invention, communication is made using two different
frequency bands. Thus, communication errors can be avoided between
a grenade launcher simulation apparatus and each personal sensing
terminal while reducing a communication load of a central control
device.
[0118] The overall structure of the grenade launcher simulation
system according to the fourth embodiment of the present invention
is the same as that of the aforementioned first, second and third
embodiments. Therefore, a duplicated description will be omitted.
The grenade launcher simulation system of the fourth embodiment
includes a grenade launcher simulation apparatus, a central control
device, and one or more personal sensing terminals.
[0119] The central control device and the personal sensing terminal
according to the present embodiment include a first wireless
communication interface and a second wireless communication
interface. The first and second wireless communication interfaces
transmit/receive signals respectively through first and second
channels by using different frequency bands.
[0120] The central control device of the grenade launcher
simulation system according to the present embodiment transmits to
each personal sensing terminal a DGPS signal of the DGPS beacon
signal receiver by using the second channel through the second
wireless communication interface. Each personal sensing terminal
corrects an error of the GPS signal by using the DGPS signal
received from the central control device through the second
wireless communication interface.
[0121] Components other than the second wireless communication
interface of the grenade launcher simulation system according to
the present embodiment operate in the same manner as those of the
aforementioned embodiments, and thus descriptions thereof will be
omitted.
[0122] While the present invention has been particularly shown and
described with reference to exemplary embodiments thereof, it will
be understood by those skilled in the art that various changes in
form and details may be made therein without departing from the
spirit and scope of the invention as defined by the appended
claims. For example, an element for estimating impact point
location information, an element for estimating an expected damage
zone, and frequency bands used by respective wireless communication
interfaces may be implemented in various forms in order to improve
overall performance of a grenade launcher simulation system of the
present invention. Therefore, the scope of the invention is defined
not by the detailed description of the invention but by the
appended claims, and all differences within the scope will be
construed as being included in the present invention.
INDUSTRIAL APPLICABILITY
[0123] According to the present invention, a grenade launcher
simulation system can be widely used in a multiple integrated laser
battle system.
* * * * *