U.S. patent application number 16/209016 was filed with the patent office on 2019-06-27 for system and method for interactive management of remote device based on lora communication.
This patent application is currently assigned to Pusan National University Industry-University Cooperation Foundation. The applicant listed for this patent is Pusan National University Industry-University Cooperation Foundation. Invention is credited to Junhwan HUH, Jaeyoung JANG, Donghyun KIM, Jongdeok KIM.
Application Number | 20190199576 16/209016 |
Document ID | / |
Family ID | 62629041 |
Filed Date | 2019-06-27 |
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United States Patent
Application |
20190199576 |
Kind Code |
A1 |
KIM; Jongdeok ; et
al. |
June 27, 2019 |
SYSTEM AND METHOD FOR INTERACTIVE MANAGEMENT OF REMOTE DEVICE BASED
ON LORA COMMUNICATION
Abstract
A system for interactive management of remote devices based on
LoRa communication includes: a web application configured to
provide a remote control page to a user; a cloud system server
configured to transmit a management command and a transmission
option to a gateway and to receive a summary packet for received
data; the gateway configured to receive, from the cloud system
server, input request data, transmit the request data to a terminal
node, decode response data, and transmit the decoded response data
to the cloud system server; and the terminal node configured to
receive the management command and the transmission option and
transmit the management command and the transmission option to a
managed device and store corresponding response data from the
managed device through local buffer control.
Inventors: |
KIM; Jongdeok; (Busan,
KR) ; JANG; Jaeyoung; (Busan, KR) ; KIM;
Donghyun; (Busan, KR) ; HUH; Junhwan; (Busan,
KR) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Pusan National University Industry-University Cooperation
Foundation |
Busan |
|
KR |
|
|
Assignee: |
Pusan National University
Industry-University Cooperation Foundation
Busan
KR
|
Family ID: |
62629041 |
Appl. No.: |
16/209016 |
Filed: |
December 4, 2018 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
H04W 88/16 20130101;
H04W 52/0274 20130101; H04L 67/10 20130101; H04L 67/02 20130101;
H04L 69/04 20130101; H04L 67/16 20130101; H04L 67/025 20130101;
H04L 41/0253 20130101; H04L 67/125 20130101; H04W 52/0267 20130101;
H04L 67/2809 20130101; H04W 4/80 20180201; H04W 28/06 20130101 |
International
Class: |
H04L 12/24 20060101
H04L012/24; H04W 52/02 20060101 H04W052/02; H04W 4/80 20060101
H04W004/80; H04W 28/06 20060101 H04W028/06; H04L 29/08 20060101
H04L029/08 |
Foreign Application Data
Date |
Code |
Application Number |
Dec 27, 2017 |
KR |
10-2017-0180677 |
Claims
1. A system for interactive management of remote devices based on
Long-Range Sub-Ghz Module (LoRa) communication, the system
comprising: a web application configured to provide a remote
control page to a user; a cloud system server configured to
transmit a management command and a transmission option to a
gateway when the management command and the transmission option are
input thereto through the web application and to receive a summary
packet for received data; the gateway configured to receive, from
the cloud system server, request data input by the user, transmit
the request data to a terminal node through LoRa communication,
decode response data received from the terminal node, and transmit
the decoded response data to the cloud system server; and the
terminal node configured to receive the management command and the
transmission option from the gateway through the LoRa
communication, transmit the management command and the transmission
option to a managed device, and store corresponding response data
from the managed device through local buffer control.
2. The system of claim 1, wherein the response data stored in the
terminal node is classified, compressed, and transmitted according
to the transmission option.
3. The system of claim 1, wherein the terminal node is operated
based on a battery, is attached to the managed device to perform
real-time interactive control, has an on/off switch function for
the managed device, and constructs a management network independent
of a service network.
4. The system of claim 1, wherein the terminal node comprises a
local buffer controller configured to perform local buffer control
for controlling a combination of a system buffer, a coupling
buffer, and a file according to an amount of information to be
transmitted to prevent a loss resulting from a transmission speed
difference.
5. The system of claim 1, wherein the transmission option is one of
entire packet transmission, specific packet transmission, packet
range designation transmission, and summary packet
transmission.
6. A method of interactive management of remote devices based on
Long-Range Sub-Ghz Module (LoRa) communication, the method
comprising: performing a user operation of inputting a management
command and a transmission option through a web application;
performing a cloud system server operation of transmitting the
management command and the transmission option to a gateway when
the management command and the transmission option are input and
receiving a summary packet for received data; performing a gateway
operation of receiving, from the cloud system server, request data
input by the user, transmitting the request data to a terminal node
through LoRa communication, decoding response data received from
the terminal node, and transmitting the decoded response data to
the cloud system server; and performing a terminal node operation
of receiving the management command and the transmission option
from the gateway through the LoRa communication, transmitting the
management command and the transmission option to a managed device,
and storing corresponding response data from the managed device
through local buffer control.
7. The method of claim 6, wherein the performing of the user
operation comprises: transmitting the management command and the
transmission option to the gateway when the user inputs the
management command and the transmission option through the cloud
system server; transmitting the received command from the gateway
to the terminal node through the LoRa communication, receiving the
response data for the command and transmitting the received
response data to the cloud system server; and when the transmission
option is an option to receive the summary packet, requesting, by
the user, desired data by inputting a parameter to receive the
summary packet for the received data.
8. The method of claim 6, wherein the performing of the gateway
operation comprises: receiving, by the gateway, the management
command and the transmission option input by the user through the
cloud system server; transmitting the received management command
and the received transmission option from the gateway to the
terminal node through the LoRa communication; receiving the
response data from the terminal node and decoding the received
response data; and transmitting the decoded data to the cloud
system server.
9. The method of claim 6, wherein the performing of the terminal
node operation comprises: receiving, by the terminal node, the
management command and the transmission option from the gateway
through the LoRa communication; transmitting the received data to
the managed device through serial communication and storing
corresponding response data through local buffer control; and
compressing and transmitting the stored response data by
classifying the stored response data according to the transmission
option.
10. The method of claim 9, wherein the compressing and transmitting
comprises: when the transmission option is entire packet
transmission (1), compressing an entirety of the response data and
transmitting the response data to the gateway; when the
transmission option is specific packet transmission (2),
compressing specific packet data requested by the user and
transmitting the response data to the gateway; when the
transmission option is packet range designation transmission (3),
compressing specific packet range data requested by the user and
transmitting the response data to the gateway; and when the
transmission option is summary packet transmission (4), compressing
first packet data, last packet data, and summary packet data,
transmitting the compressed first packet data, last packet data,
and summary packet data to the gateway, receiving additional
request data from the gateway, and transmitting response data for
the additional request data to the gateway.
11. The method of claim 6, wherein the terminal node periodically
checks whether the managed device is normal, wherein, when the
terminal node issues a notification upon occurrence of a failure in
the managed device, the user remotely transmits a power control
command so as to physically control (turn on/off) power of the
managed device.
Description
CROSS-REFERENCE TO RELATED APPLICATION
[0001] This application claims priority to and the benefit of
Korean Patent Application No. 10-2017-0180677, filed on Dec. 27,
2017, the disclosure of which is incorporated herein by reference
in its entirety.
BACKGROUND
[0002] The present invention relates to management of a remote
device, and more particularly, to a system and method for
interactive management of remote devices based on Long-Range (LoRa)
communication that may remotely manage devices by constructing a
low-power long-range communication system for management of remote
devices by addressing the issue of a transmission speed difference
between a remote device management interface and LoRa
communication.
[0003] Long-Range Sub-Ghz Module (LoRa) communication is intended
for Internet of Things (IoT) services requiring low power, low
cost, and high reliability. LoRa communication network technology
has a much wider range (a maximum of 21 km in an environment where
a line of sight is secured) than other wireless protocols, and thus
requires fewer repeaters and access points (APs). Accordingly, it
may reduce the cost for building an infrastructure and provide
higher extensibility and cost efficiency for embedded applications
than 3G/4G cellular networks.
[0004] LoRa uses a Chirp spread spectrum modulation scheme, which
is operated at low power, to increase the communication range.
Chirp spread spectrum, which has been used in military and space
communications for decades because of its wide coverage and
robustness to interference, has been introduced into LoRa for
commercial use for the first time.
[0005] The communication range of LoRa is from 2 km to 15 km in an
urban area and reaches 30 km in an area where the line of sight is
secured. The communication range of LoRa is from 1 km to 2 km in an
underground area and is from 2 km to 3 km in an indoor space. LoRa
is designed with a spread spectrum scheme to have a bandwidth of
125 kHz and a maximum transmission power of 14 dBm, to operate in
an industrial, scientific, and medical radio band (ISM band), and
to have a low transfer rate and maximum reception sensitivity of
-138 dBm.
[0006] However, with expansion of IoT services, the number of field
devices is increasing, and problems occurring in a system require a
system operator to visit the site to control the problems, which
may cause difficulties in performing failure recovery and require a
longer recovery time.
[0007] Conventional systems often do not have a remote management
function. Further, the conventional systems make it difficult to
perform remote management when there is a problem with a network or
devices suffer a problem.
[0008] In particular, since access from the outside is restricted
due to reasons such as network security, it is difficult to cope
with a problem occurring in the network or in the devices.
[0009] Therefore, there is a need for a new technology for
effectively coping with problems occurring in a network and devices
from a remote place.
PRIOR ART LITERATURE
Patent Documents
[0010] Korean Patent Publication No. 10-1742443
[0011] Korea Patent Application Publication No. 10-2009-0086472
[0012] Korean Patent Application Publication No.
10-2008-0054831
SUMMARY
[0013] The present invention is directed to a system and method for
interactive management of remote devices based on Long-Range
Sub-Ghz Module (LoRa) communication that may remotely manage
devices by constructing a low-power long-range communication system
for management of remote devices by addressing a transmission speed
difference between a remote device management interface and LoRa
communication.
[0014] The present invention is also directed to a system and
method for interactive management of remote devices based on LoRa
communication that may remotely manage devices by constructing a
management network independent of an existing network and
effectively cope with a failure occurring in managed devices by
configuring a terminal node attachable to the managed devices.
[0015] The present invention is also directed to a system and
method for interactive management of remote devices based on LoRa
communication that may address the issue of memory shortage caused
by a lightweight device through local buffer control for enhancing
transmission efficiency in a remote device management terminal and
preventing a loss resulting from a transmission speed
difference.
[0016] The present invention is also directed to a system and
method for interactive management of remote devices based on LoRa
communication that may shorten a transmission time required for
transmission of a large amount of data by compressing transfer data
to be transferred from a remote device management terminal to a
server and performing an interactive process.
[0017] The present invention is also directed to a system and
method for interactive management of remote devices based on LoRa
communication for interactive remote device management based on a
LoRa communication that may efficiently cope with a raised issue by
receiving and checking only data required by a user by performing
an interactive process.
[0018] The objects of the present invention are not limited to the
above-mentioned objects, and other objects not mentioned can be
clearly understood by those skilled in the art from the following
description.
[0019] According to an aspect of the present invention, there is
provided a system for interactive management of remote devices
based on Long-Range Sub-Ghz Module (LoRa) communication, the system
including: a web application configured to provide a remote control
page to a user; a cloud system server configured to transmit a
management command and a transmission option to a gateway when the
management command and the transmission option are input thereto
through the web application and to receive a summary packet for
received data; the gateway configured to receive, from the cloud
system server, request data input by the user, transmit the request
data to a terminal node through LoRa communication, decode response
data received from the terminal node, and transmit the decoded
response data to the cloud system server; and the terminal node
configured to receive the management command and the transmission
option from the gateway through the LoRa communication and transmit
the management command and the transmission option to a managed
device, and to store corresponding response data from the managed
device through local buffer control.
[0020] Herein, the response data stored in the terminal node may be
classified, compressed and transmitted according to the
transmission option.
[0021] The terminal node may be operated based on a battery, be
attached to the managed device to perform real-time interactive
control, have an on/off switch function for the managed device, and
construct a management network independent of a service
network.
[0022] The terminal node may include a local buffer controller
configured to perform local buffer control for controlling a
combination of a system buffer, a coupling buffer, and a file
according to an amount of information to be transmitted to prevent
a loss resulting from a transmission speed difference.
[0023] The transmission option may be one of entire packet
transmission, specific packet transmission, packet range
designation transmission, and summary packet transmission.
[0024] According to another aspect of the present invention, there
is provided a method of interactive management of remote devices
based on LoRa communication, the method including: performing a
user operation of inputting a management command and a transmission
option through a web application; performing a cloud system server
operation of transmitting the management command and the
transmission option to a gateway when the management command and
the transmission option are input and receiving a summary packet
for received data; performing a gateway operation of receiving,
from the cloud system server, request data input by the user,
transmitting the request data to a terminal node through LoRa
communication, decoding response data received from the terminal
node, and transmitting the decoded response data to the cloud
system server; and performing a terminal node operation of
receiving the management command and the transmission option from
the gateway through the LoRa communication and transmitting the
management command and the transmission option to a managed device,
and storing corresponding response data from the managed device
through local buffer control.
[0025] Herein, the performing of the user operation may include:
transmitting the management command and the transmission option to
the gateway when the user inputs the management command and the
transmission option through the cloud system server; transmitting
the received command from the gateway to the terminal node through
the LoRa communication, receiving the response data for the command
and transmitting the received response data to the cloud system
server; when the transmission option is an option to receive the
summary packet, requesting, by the user, desired data by inputting
a parameter to receive the a summary packet for the received
data.
[0026] The performing of the gateway operation may include:
receiving, by the gateway, the management command and the
transmission option input by the user through the cloud system
server; transmitting the received management command and the
received transmission option from the gateway to the terminal node
through the LoRa communication; receiving the response data from
the terminal node and decoding the received response data; and
transmitting the decoded data to the cloud system server.
[0027] The performing of the terminal node operation may include:
receiving, by the terminal node, the management command and the
transmission option from the gateway through the LoRa
communication; transmitting the received data to the managed device
through serial communication and storing corresponding response
data through local buffer control; and compressing and transmitting
the stored response data by classifying the stored response data
according to the transmission option.
[0028] The compressing and transmitting may include: when the
transmission option is entire packet transmission (1), compressing
an entirety of the response data and transmitting the response data
to the gateway; when the transmission option is specific packet
transmission (2), compressing specific packet data requested by the
user and transmitting the response data to the gateway; when the
transmission option is packet range designation transmission (3),
compressing specific packet range data requested by the user and
transmitting the response data to the gateway; and when the
transmission option is summary packet transmission (4), compressing
first packet data, last packet data, and summary packet data,
transmitting the compressed first packet data, last packet data,
and summary packet data to the gateway, receiving additional
request data from the gateway, and transmitting response data for
the additional request data to the gateway.
[0029] The terminal node may periodically check whether the managed
device is normal, wherein, when the terminal node issues a
notification upon occurrence of a failure in the managed device,
the user may remotely transmit a power control command so as to
physically control (turn on/off) power of the managed device.
BRIEF DESCRIPTION OF THE DRAWINGS
[0030] The above and other objects, features and advantages of the
present invention will become more apparent to those of ordinary
skill in the art by describing exemplary embodiments thereof in
detail with reference to the accompanying drawings, in which:
[0031] FIGS. 1A to 1C are diagrams of a network of a system for
interactive management of remote devices based on Long-Range
Sub-Ghz Module (LoRa) communication according to the present
invention;
[0032] FIGS. 2A and 2B are diagrams of a configuration of the
system for interactive management of remote devices based on LoRa
communication according to the present invention;
[0033] FIGS. 3 to 6 are flowcharts illustrating a method of
interactive management of remote devices based on LoRa
communication according to the present invention;
[0034] FIGS. 7 to 10 are diagrams illustrating a local buffer
control procedure according to the present invention;
[0035] FIG. 11 is a diagram illustrating a data compression
procedure according to the present invention; and
[0036] FIGS. 12 to 15 are diagrams illustrating an interactive
process procedure according to the present invention.
DETAILED DESCRIPTION
[0037] Hereinafter, exemplary embodiments of a system and method
for interactive management of remote devices based on Long-Range
Sub-Ghz Module (LoRa) communication according to the present
invention will be described in detail.
[0038] The features and advantages of the system and method for
interactive management of remote devices based on LoRa
communication according to the present invention will be apparent
from the following detailed description of the embodiments.
[0039] FIGS. 1A to 1C are diagrams of a network of a system for
interactive management of remote devices based on LoRa
communication according to the present invention, and FIGS. 2A and
2B are diagrams of a configuration of the system for interactive
management of remote devices based on LoRa communication according
to the present invention.
[0040] As shown in FIG. 1A, the system for interactive management
of remote devices based on LoRa communication according to the
present invention constructs a management network independent of
existing service networks.
[0041] As shown in FIG. 1B, the management network is constructed
through management devices which are easily attachable to managed
devices.
[0042] As shown in FIG. 1C, the stand-alone remote device
management system according to the present invention performs
real-time interactive control using a local (serial) based device,
operates based on a battery, and has an on/off switch function.
[0043] As shown in FIGS. 2A and 2B, the interactive remote device
management system based on LoRa communication according to the
present invention includes a web application 20 configured to
provide a remote control page to a user, a cloud system server 30
configured to transmit a management command and a transmission
option to a base station (gateway) upon reception of the management
command and the transmission option through the web application 20
and to receive a summary packet for received data, a gateway 40
configured to receive, from the cloud system server 30, request
data input by the user, to transmit the request data to a terminal
node 50 through LoRa communication, and to decode response data
received from the terminal node 50 to transmit the response data to
the cloud system server 30, and the terminal node 50 configured to
receive a management command and a transmission option from the
gateway 40 through LoRa communication, to transmit received data to
a managed device 60 through serial communication, to store
corresponding response data from the managed device 60 through
local buffer control, and to classify the stored response data
according to the transmission option to compress and transmit the
stored response data.
[0044] The interactive remote device management system based on
LoRa communication according to the present invention configured as
above has an interactive structure for addressing a transmission
speed difference between the remote device management interface and
the LoRa communication. When the user inputs a management command
and a transmission option through the cloud system server 30, the
interactive remote device management system transmits the
management command and the transmission option to the terminal node
50 via the gateway 40. The terminal node 50 receives the management
command and the transmission option from the gateway 40 through
LoRa communication, transmits received data to the managed device
60 through serial communication, and stores corresponding response
data from the managed device 60 through local buffer control. The
stored response data is classified according to the transmission
option so as to be compressed and transmitted.
[0045] A method of interactive management of remote devices based
on LoRa communication according to the present invention will be
described in detail.
[0046] FIGS. 3 to 6 are flowcharts illustrating a method of
interactive management of remote devices based on LoRa
communication according to the present invention.
[0047] FIG. 3 illustrates the method of interactive management of
remote devices based on LoRa communication from a user
perspective.
[0048] The user inputs a management command and a transmission
option through a cloud system server (S301) and transmits the
management command and transmission option to a gateway (S302).
[0049] Then, the gateway transmits the received command to a
terminal node through LoRa communication and receives response data
for the command (S303) and transmits the response data to the cloud
system server.
[0050] When the transmission option is an option to receive a
summary packet (S304), the user requests desired data by inputting
a parameter (S305) to receive the summary packet for the received
data (S306).
[0051] FIG. 4 illustrates the interactive remote device management
method based on LoRa communication from a base station (gateway)
perspective.
[0052] The gateway receives request data (a management command and
a transmission option) input by the user from the cloud system
server (S401).
[0053] The gateway transmits the request data (the management
command and transmission option) to a terminal node through LoRa
communication (S402).
[0054] Then, the gateway receives response data from the terminal
node (S403) and decodes the received response data (S404).
[0055] Subsequently, the gateway transmits the decoded data to the
cloud system server (S405).
[0056] FIG. 5A, FIG. 5B illustrates the interactive remote device
management method based on LoRa communication from a terminal node
perspective.
[0057] Initially, the terminal node receives a management command
and a transmission option from a base station through LoRa
communication (S501).
[0058] The terminal node transmits the received data to a managed
device through serial communication (S502) and stores corresponding
response data through local buffer control (S503).
[0059] The terminal node classifies the stored response data
according to the transmission option and compresses and transmits
response data.
[0060] When the transmission option is entire packet transmission 1
(S504), the terminal node compresses the entirety of response data
(S508) and transmits the response data to the gateway (S509).
[0061] When the transmission option is specific packet transmission
2 (S505), the terminal node compresses specific packet data
requested by the user (S510) and transmits response data to the
gateway (S511).
[0062] When the transmission option is packet range designation
transmission 3 (S506), the terminal node compresses specific packet
(range) data requested by the user (S512) and transmits response
data to the gateway (S513).
[0063] When the transmission option is summary packet transmission
4 (S507), the terminal node compresses the first packet data, the
last packet data, and summary packet data and transmits the
compressed first packet data, the last packet data, and summary
packet data to the gateway (S514). The terminal node receives
additional request data from the gateway (S515) and transmits
response data for the additional request data to the gateway
(S516).
[0064] FIG. 6 illustrates the interactive remote device management
method based on LoRa communication when a failure occurs in a
network and a managed device.
[0065] The terminal node periodically checks whether the managed
device is normal (S601).
[0066] When a failure occurs in the managed device, the terminal
node sends a notification to the gateway through LoRa communication
(S602).
[0067] The gateway sends a notification to the cloud system server
to inform the user of the abnormality of the managed device
(S603).
[0068] The user remotely transmits a power control command (S604)
and physically controls (turns on/off) the power of the managed
device (S605).
[0069] A local buffer control procedure according to the present
invention will be described below.
[0070] FIGS. 7 to 10 are diagrams illustrating a local buffer
control procedure according to the present invention.
[0071] The terminal node is provided with a local buffer controller
to address the issue of memory shortage caused by a lightweight
device through local buffer control for enhancing transmission
efficiency in the terminal node and preventing a loss resulting
from a transmission speed difference.
[0072] When the amount of information is small, local buffer
control is performed using a combination of two system buffers and
one coupling buffer. When the amount of information is large, local
buffer control is performed using a combination of two system
buffers, one coupling buffer, and a file.
[0073] FIG. 11 illustrates a procedure of compressing transfer data
to be transferred from a terminal node to a cloud system
server.
[0074] FIGS. 12 to 15 illustrate an interactive process procedure
according to the present invention. According to the interactive
process procedure, a transmission time required for transmission of
a large amount of data may be shortened by performing an
interactive process. In addition, by receiving and checking only
data required by a user by performing the interactive process, a
raised issue may be efficiently coped with.
[0075] As described above, the system and method for interactive
management of remote devices based on LoRa communication may
remotely manage devices by constructing a management network
independent of an existing network and effectively cope with a
failure occurring in managed devices by configuring a terminal node
attachable to the managed devices.
[0076] In particular, the issue of memory shortage caused by a
lightweight device may be addressed through local buffer control
for enhancing transmission efficiency in the terminal node and
preventing a loss resulting from a transmission speed difference.
In addition, a transmission time required for transmission of a
large amount of data may be shortened by compressing transfer data
to be transferred from the terminal node to the cloud system server
and performing an interactive process.
[0077] As described above, a system and method for interactive
management of remote devices based on LoRa communication according
to the present invention have the following effects.
[0078] First, devices may be remotely managed by constructing a
low-power long-range communication system for management of remote
devices by addressing the issue of a transmission speed difference
between a remote device management interface and LoRa
communication.
[0079] Second, devices may be remotely managed by constructing a
management network independent of an existing network, and a
failure occurring in managed devices may be effectively coped with
by configuring a terminal node attachable to the managed
devices.
[0080] Third, the issue of memory shortage caused by a lightweight
device may be addressed through local buffer control for enhancing
transmission efficiency in a remote device management terminal and
preventing a loss resulting from a transmission speed
difference.
[0081] Fourth, a transmission time required for transmission of a
large amount of data may be shortened by compressing transmission
data to be transmitted from a remote device management terminal to
a server and performing an interactive process.
[0082] Fifth, by receiving and checking only data required by a
user by performing an interactive process, a raised issue may be
efficiently coped with.
[0083] As described above, it will be understood that the present
invention is implemented in a modified form without departing from
the spirit and scope of the present invention.
[0084] Accordingly, the above-described exemplary embodiments are
to be regarded in an illustrative rather than a restrictive sense.
The scope of the present invention is indicated by the appended
claims rather than by the foregoing description. Thus, it should be
interpreted that all differences falling within the scope of the
claims are embraced by the present invention.
* * * * *