U.S. patent application number 13/935232 was filed with the patent office on 2014-04-10 for networked communications system and segment addressable communications assembly box, cable and controller.
This patent application is currently assigned to TECHNOLOGY MINING COMPANY, LLC. The applicant listed for this patent is Technology Mining Company, LLC. Invention is credited to Calvin H. Woosnam.
Application Number | 20140099882 13/935232 |
Document ID | / |
Family ID | 39644067 |
Filed Date | 2014-04-10 |
United States Patent
Application |
20140099882 |
Kind Code |
A1 |
Woosnam; Calvin H. |
April 10, 2014 |
NETWORKED COMMUNICATIONS SYSTEM AND SEGMENT ADDRESSABLE
COMMUNICATIONS ASSEMBLY BOX, CABLE AND CONTROLLER
Abstract
A communication systems providing a fault-tolerant
communications path for narrow and broad band communication
comprising one or more self-powered satellite units each providing
signal information to at least one command console through a
segmented cable assembly system in operable communication with a
central station that receives signal information from the at least
one command console and relays signal information back to the
command console wirelessly and via the segmented cable assembly
system.
Inventors: |
Woosnam; Calvin H.;
(Coquitlam, CA) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Technology Mining Company, LLC |
Addison |
TX |
US |
|
|
Assignee: |
TECHNOLOGY MINING COMPANY,
LLC
Addison
TX
|
Family ID: |
39644067 |
Appl. No.: |
13/935232 |
Filed: |
July 3, 2013 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
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12021076 |
Jan 28, 2008 |
|
|
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13935232 |
|
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|
60886905 |
Jan 26, 2007 |
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Current U.S.
Class: |
455/12.1 ;
174/105B; 174/70R; 361/679.01; 361/704; 361/752; 455/73 |
Current CPC
Class: |
F16M 13/022 20130101;
H04W 28/04 20130101; H04H 20/61 20130101; H01Q 1/125 20130101; F16F
15/121 20130101; H04B 7/1851 20130101; H01B 7/17 20130101; H05K
7/2039 20130101; H01B 11/22 20130101; H04H 20/02 20130101; G08B
13/19636 20130101; G08B 13/1966 20130101; H04B 1/38 20130101; H05K
7/1015 20130101; H04H 40/90 20130101; H01Q 1/005 20130101; H04H
20/59 20130101 |
Class at
Publication: |
455/12.1 ;
361/679.01; 361/752; 361/704; 174/105.B; 174/70.R; 455/73 |
International
Class: |
H04B 7/185 20060101
H04B007/185; H04B 1/38 20060101 H04B001/38; H01B 7/17 20060101
H01B007/17; H01B 11/22 20060101 H01B011/22; H05K 7/10 20060101
H05K007/10; H05K 7/20 20060101 H05K007/20 |
Claims
1. A communication systems providing a fault-tolerant
communications path for narrow and broad band communication
comprising: one or more self-powered satellite units each providing
signal information to at least one command console through a
segmented cable assembly system; a central station that receives
signal information from the at least one command console and relays
signal information back to the command console wirelessly and via
the segmented cable assembly system.
2. The communication system of claim 1, wherein the segmented cable
assembly system is powered by a controller outfitted with a
transceiver and an external high gain antenna.
3. The communication system of claim 1, wherein the segmented cable
assembly system includes a repeater.
4. The communications system of claim 1, wherein the cable assembly
includes a UWB radio and antenna.
5. A cable assembly comprising one or more fixed length cable
segments, each segment linked to a junction box having a repeater
system to extend a signal communications range significantly
further than 3000 feet.
6. The cable assembly of claim 5, wherein the each segment includes
a metal casing and core bundle wrapped with an aerogel
material.
7. The cable assembly of claim 5, wherein each segment includes a
stress release system, each segment configured for 2600 pounds of
longitudinal force.
8. The cable assembly of claim 5, wherein each segment will
re-broadcast a signal selected from the group consisting of UWB,
WiFi and RF.
9. The cable assembly of claim 5, wherein the cable assembly has no
vertical or horizontal constraints.
10. The cable assembly of claim 5, wherein each segment will
withstand temperatures in excess of current plenum and riser wiring
standards.
11. The cable assembly of claim 5, wherein the junction box has
plug-in circuit board.
12. The cable assembly of claim 5, wherein the junction box
includes a raceway system to drop splice fiber optic channels for
direct plug-in to one or more main circuit hoard media
converters.
13. The cable assembly of claim 5, wherein the junction box
includes a thermal cooling system operable with an on-board CPU to
prevent overheating and failure.
14. The cable assembly of claim 5, wherein the junction box
includes two DC output voltages of 5 Volt and 12 Volt operable with
a UPS system deriving its power from an on board battery.
14. The cable assembly of claim 5, wherein the junction box is
controlled by a separate controller.
15. A cable assembly comprising: one or more fixed length cable
segments, each segment capable of withstanding temperatures in
excess of current plenum and riser wiring standards, wherein each
segment includes a high gauge metal casing and a core bundle
wrapped with a heat resistant aerogel material
16. The cable assembly of claim 15, wherein the core bundle
includes one or more power conductors, one or more multi-mode
fiber-optic data channels, a coaxial cable 40 and a high strength
stress cable.
17. A controller comprising: a transceiver; an external SMA-type
cable connected high gain
18. The controller of claim 17, wherein the transceiver is capable
of switching IEEE 802.15.4 to 802.15.3.
19. The controller of claim 17, wherein the signals from the
controller penetrate walls.
20. The controller of claim 17, wherein the controller is operable
with an antenna router device for transmitting signals to a
wireless device.
Description
CROSS-REFERENCES TO RELATED APPLICATIONS
[0001] This application is a Continuation of U.S. patent
application Ser. No. 12/021,076 filed Jan. 28, 2008, which claims
the benefit for priority from U.S. Provisional Application No.
60/886,905 filed Jan. 26, 2007, both applications of which are
hereby incorporated herein by reference in their entirety.
BACKGROUND OF THE INVENTION
[0002] The inventions described relate generally to a networked
communications system. More particularly, the inventions herein
relate to a fault tolerant intra-communications and
inter-communications systems and assemblies thereof.
[0003] Most, if not all, cable systems used in communications and
power industries are designed to comply with a single function,
that being either power or communications. And when it comes to
different modes of power or communications components have been
designed separately and independently; few if any can truly
integrated with other components, Connectivity standards of such
components are also not designed to withstand damage (e.g., fire or
mechanical problems). As such, current systems are unreliable and
do not function or remain operational under adverse conditions.
SUMMARY OF THE INVENTION
[0004] The inventions described herein solve many problems
associated with current communications systems
[0005] Generally, and in one form, is provided a networked
communications system for narrow and broad band signal
communication, the system operable with a segment addressable
communications assembly (SACA) junction box and cable for
terrestrial and wireless communication that is fault tolerant.
[0006] Those skilled in the art will further appreciate the
above-noted features and advantages of the invention together with
other important aspects thereof upon reading the detailed
description that follows in conjunction with the drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0007] For more complete understanding of the features and
advantages of the present invention, reference is now made to the
detailed description of the invention along with the accompanying
figures, wherein:
[0008] FIG. 1A depicts in schematic a networked communications
systems and representative transmission pathways as described
herein;
[0009] FIGS. 1B and 1C depict a flow chart of representative
communications paths as described herein;
[0010] FIG. 2A depicts in cross-section a schematic of a
representative cable assembly as described herein;
[0011] FIG. 2B depicts a representative fabricated cable assembly
as described herein;
[0012] FIG. 2C depicts a blow-out view of the cable assembly of
FIG. 2A;
[0013] FIG. 2D depicts a detail view of the loop of the cable
assembly of FIG. 2C;
[0014] FIG. 3 depicts in schematic form a first view of a SACA
cable assembly and junction box;
[0015] FIG. 4 depicts in schematic form a second view of a SACA
cable assembly and junction box;
[0016] FIG. 5 depicts in schematic form a second view of a SACA
cable assembly and junction box;
[0017] FIG. 6 depicts in schematic form a plan view of the exterior
of a junction box;
[0018] FIG. 7 depicts a representation of a typical cable race tray
described herein;
[0019] FIGS. 8A and 8B depict various views of junction box
circuitry;
[0020] FIG. 9 depicts a representative drawing of a controller
system case and design;
[0021] FIG. 10 illustrates by representation a depiction of a
communications system and circuitry as described herein;
[0022] FIG. 11 depicts a representative improved antenna as
described herein; and
[0023] FIG. 12 depicts an image of a media converter described
herein.
DETAILED DESCRIPTION OF THE INVENTION
[0024] Although making and using various embodiments of the present
invention are discussed in detail below, it should be appreciated
that the present invention provides many inventive concepts that
may be embodied in a wide variety of contexts. The specific aspects
and embodiments discussed herein are merely illustrative of ways to
make and use the invention, and do not limit the scope of the
invention.
[0025] In the description which follows like parts may be marked
throughout the specification and drawing with the same reference
numerals, respectively. The drawing figures are not necessarily to
scale and certain features may be shown exaggerated in scale or in
somewhat generalized or schematic form in the interest of clarity
and conciseness.
[0026] This application is being filed concurrently with co-pending
U.S. patent applications, each of which claims the benefit for
priority from U.S. Provisional Application No. 60/886,905 filed
Jan. 26, 2007, and each describing aspects of the invention
described herein, including GIMBALED MOUNT SYSTEM FOR SATELLITES
(U.S. patent application Ser. No. 12/020,269), NETWORKED
COMMUNICATIONS AND EARLY WARNING SYSTEMS, and SECURITY ASSEMBLY AND
SYSTEM.
[0027] The communications system as described herein includes an
integrated satellite based device capable of broadband digital
signaling, the device is also referred to herein as satellite unit
(SU). Each SU is able to be in constant alignment with a desired
satellite. The satellite dish itself may be round or elliptical and
mounted, generally in a vertical orientation, parallel to the
horizontal plane. The mount may be a gimbaled mounting system,
motorized, and/or self-aligning. Preferably, the satellite is
self-powered and self-contained and comprises a dish assembly, a
self-stabilizing mount, and a controller section containing a
transceiver for wireless communication. A transceiver, as described
herein, is operational at variable power levels and wavelengths and
compliant with public local area network (LAN) use (e.g., IEEE/ITU
802.15.4) and emergency/military use (e.g., IEEE/ITU 802.15.3). An
SU having a transceiver, typically a radio frequency transceiver,
is coupled with Ultra Wide Band (UWB) technology to re-broadcast
information to other receivers.
[0028] Further included with a system described herein is a custom
cable assembly also referred to as a segment addressable
communications assembly (herein "SACA") cable system or a
terrestrial link. In one form, a SACA cable system allows one or
more SUs to become operable with a command console. A SACA cable
system may offer both vertical and horizontal integration of
information to a command console.
[0029] A command console may be located anywhere, preferably in a
position considered safe, such as a building, shelter, emergency
operation center, disaster coordination center, emergency dispatch
center. in another preferred embodiment, the command console is
positioned separate and apart from a safe location and while
positioned independently is still in operational communication with
such safe locations. In the latter design, a command console
initiates communication with the safe location via a broadband
connection through the SU satellite. A command console also has
interconnectivity with any public data or voice network through
digital bridging. Thus, a command console may also initiate
communication with any public data or voice network via digital
bridging.
[0030] Command console-initiated communication is provided through
one or a number of sites, including a central monitor and/or one or
more detectors. Control of the SU transceiver is also under the
command of the central monitor via software. Thus, the SU provides
a fault tolerant broadband satellite link that is also integrated
with other components.
[0031] Each command console offers interconnectivity via a network
with one or more SUs (10 as depicted in FIG. 1A). As such, a
central monitor 20 connects one or more SUs 10 with one or more
receiving units 30, which includes safe locations, homes, offices
and other network locations. A central monitor may also be in
operable communication with a detector 40. A schematic
representation of one representation of a communications system
described herein is illustrated in FIG. 1A and described further
below. A flow chart of representative communications pathways
possible with a communications system described herein is shown in
FIG. 1B
[0032] Detectors include sensors (remote controlled or otherwise
and include sensors for, e.g., radiation, chemical, bio-hazard,
explosive, seismic, heat, pressure). One or more detectors may be
associated with an SU.
[0033] The communications system described herein is further
provided with an electrical power source. Each power source is
interfaced at a command center using existing wiring and/or a
remote data acquisition system. A power source provides a means for
interconnectivity to sensors and/or for relaying other information,
such as audible information in the form of alerts or sirens. A
robust power supply system with multiple power source supplies
provides uninterruptible operation should there be any fault in
part of the system or an emergency even in which one or more
conventional power sources are negated. A power source may be also
be maintained at the central monitor.
[0034] As described herein, a communications system includes in
part or in whole one or a number of SUs at one or a number of
locations with command centers and a central monitor. The
communications system may act as an alert, warning, control or
monitoring system. Information communicated though the
communications system may be relayed to one of a number of ports,
including computer, landline telephone, cellular phone, PDA,
lighting unit, and mechanical system (e.g., via a Web page-enabled
manager), as examples.
[0035] A command console generally includes hardware, its own
un-interruptible power supply (UPS) power supply, a routing box,
and another transceiver as depicted on the lower right in FIG. 10
as 1010. One or more UPS power each command console. A command
console serves as a secondary power source to an SU. Cabling
between an SU and the command console is through a SACA cable
assembly system 1020, which includes an armored mechanically and
thermally protected cable having sectionally addressable access
points (shown in FIGS. 2A-2C). In one form, a SACA cable assembly
system may be used as a tunable antennae system depending on its
location (e.g., within a building having diverse locations). A
command console is, therefore, capable of interconnecting with a
building and with a pre-wired system.
[0036] Additionally or as an alternative, further links may be
installed in the command console using UWB technology (e.g.,
IEEE/ITU 802.15.4/UWB). Such added bridge components may be
installed at a remote location within an equipped SU to relay
signals to the command console, an example is depicted as 1030 in
FIG. 10. This prevents additional wiring and offers enhanced
reliability to the system.
[0037] In one communication relay pathway, a central monitor
provides information to a command console located in a building
that is received from a service provider (e.g., environmental,
security, facilities management, utilities). The information is
generally received wirelessly and via a direct connection to the
equipped building. Again, a schematic and a generalized flow chart
of some representative communications pathways as described herein
are depicted in FIGS. 1A and 1B, respectively. Services such as
private network devices and Voice over Internet Protocol (VoIP) may
be supplied wirelessly using the communications systems described
herein. An equipped building may also act as a relay station by way
of its transceiver to provide broadband re-direct-able connections
to other sites equipped to receive the communication. This provides
an abundant number of resources for communicating information.
[0038] Connectivity through a SACA cable relies on a SACA junction
box having a repeater system to extend a wireless communications
range (e.g., WiFi IEEE/ITU 802.11a/b/g addressable repeater
system), as exemplified in FIGS. 3, 5 and 8A. SACA cables serve to
address connectivity between an SU and a command console. In
addition, SACA cables have output ports at various lengths along
the segments for periodic and/or separately addressable sections to
re-broadcast a signal (e.g., digital UWB, WiFi, RF) that has been
injected by a provided connector at a command console.
[0039] The SACA cable system is custom constructed in one or more
fixed length segments to match requirements of an end installation.
For example, 10, 20 100 and 300 foot lengths are obtainable. The
cable system may be readily expanded or reduced as needed to
enhance fiber optic connectivity. Power management components are
determined by end power requirement needs. Cable stress release may
be adjusted based on size of internal stress of the member
installed. A typical configuration of a cable assembly is for 2600
pounds of longitudinal force. There are no vertical or horizontal
structural constraints when using the SAGA cable system described
herein. Components of the SACA cable system comply with and exceed
UL standards, meet and exceed UL Circuit Integrity (CI) compliance
requirements and are deemed Fire Hardened Integrity Tested
(FHIT),
[0040] A cross-sectional view of a cable assembly is depicted in
FIG. 2A. The exterior casing 10 is of spiral metal construction and
generally made of a high gauge steel (e.g.; #14) or aluminum. The
casing is typically flexible, resistant to high mechanical forces,
has an interlocking wrap (e.g., RWS type). Suitable examples
include BX or type AC flexible steel cable. Preferably the casing
is 1 inch thick and is of the highest gauge metal available for a
chosen cable assembly diameter. Standard casings have no coating.
As an alternative a coating may be applied to the casing as
described further below. The interior includes a core bundle 15
comprising one or number of power conductors 20, multi-mode
fiber-optic data channels 30, coaxial cable 40 and high strength
stress cable, in a desired combination, all of which are encircled
in their entirety with a flexible heat resistant silica aerogel
wrap 50. The wrap is suitably reinforced, generally with a
non-woven, carbon and/or glass fiber batting. A suitable blanket
material may be found with Pyrogel.RTM. (Aspen Aerogels, Inc.,
Northborough, Mass.). Typically, the wrap is applied in a 50%
overlapping 6 mm spiral wrap over the entire interior contents. As
such, the wrap is continuous and extends uninterrupted over the
entire length of each cable segment (as measured from end to
end).
[0041] At each end of a cable segment, core bundle 60 that includes
the flexible heat resistant wrap extends further than casing 10 as
exemplified in FIG. 2C. At each segment end 65, the casing is
clamped with a cable clamp 66, typically installed with a lockout
67 and silicone ring as exemplified in FIG. 3. End clamps are
compression fit using non-flammable seating rings on both external
mounting threads as wells an approved silicone sealing ring on the
cable compression nut fitting. A loose lead extension at each end
of the core bundle is typically about 26 inches longer than the
casing. The length may vary and is enough to ensure strain-less
connection to a terminus box at either end of the cable segment. At
an end of each core bundle is a multi-conductor connector 70 (FIG.
2A and inset FIG. 2C; also shown in FIG. 2B). The connector is
terminated by a loop that extends about six inches from the end
marked as 75. The loop is generally a standard 1/4 inch loop 80.
Fiber optic channels are terminated with appropriate plugs or other
suitable terminations. A suitable plug is exemplified with a
Volition.TM. connector system (3M Corporation, St. Paul, Minn.).
The length of a cable segment is defined by the distance from one
connector facing side to the other connector facing side.
[0042] Examples of representative cable assemblies include 20 and
300 foot length segments (SA.CA-T), a lite 300 foot length cable
(SAGA-lite) and 20 and 300 foot water proof cables (SACA-W). For
SACA-T, the core bundle was linear wrapped with 4 mil thick
aerogel. The casing was bare flexible steel clad apical wrapped.
The core bundle included 3.times.2 conductor PNR multi-mode fiber
optic cables, an RG-188 AU coaxial high-temperature cable, and
3.times.10 AWG/19ST B/W/G multi-core power leads. For SACA-lite,
the core bundle was linear wrapped with 4 mil thick aerogel. The
casing was bare flexible steel clad apical wrapped. The core bundle
included 3.times.2 conductor PNR multi-mode fiber optic cables
prepared as a loose laced wrapped bundle, an RG-188 AU coaxial
high-temperature (200 degree-rated) cable, 3.times.10 AWG/19ST
B/W/G multi-core 200 degree-rated power leads and a CAT-6 cabling,
plenum grade. For SACA-W, the core bundle was linear wrapped with 4
mil thick aerogel. The casing was flexible steel clad apical
wrapped with a plastic water proof coating. The core bundle
included 3.times.2 conductor PNR multi-mode fiber optic cables, an
RG-188 AU coaxial high-temperature cable and 3.times.10 AWG/19ST
B/W/G multi-core 200 degree-rated power leads.
[0043] For terminations of leads in each core bundle, the aerogel
extended 1 inch minimum beyond the casing end. Leads extending
beyond the aerogel wrap were at least 22 inches before proper
termination. Power leads had 1/2 inch bare copper ends. Fiber optic
lines were polarization non-reciprocity (PNR) and terminated with
male plugs. The coaxial cable was terminated with a male plug.
Ethernet cabling was CAT-6 terminated in an RJ-45 connector A
fitting.
[0044] One method for preparing the cable assembly described herein
includes applying the casing around the core bundle after the core
bundle is assembled. An alternative method is to stuff a prepared
core bundle into a desired casing. With either process, mechanical
wrapping of the bundle is done with a near zero air gap to the
bundle from the inner walls of the fabricated outer casing, while
maintaining an industry standard size at the beginning and length
of each cable segment. The casing is generally provided in one of a
number of fixed industry diameter sizes. Typical coil rings are set
for overlapping that creates a minimum of 11 rings per foot,
thereby maximizing lateral force protection from entering or
damaging the core bundle. Using a standard cable sizes, each core
bundle (including the flexible heat resistant wrap) is no larger
than 60-70% of the interior diameter of a flexible casing size
specification. Optionally, the cable assembly may include providing
a water tight or water repellent layer around the perimeter of the
outer casing.
[0045] As described herein, by using a heavier gauge outer casing
than is conventionally used and combined with a tighter than normal
ring spacing and a steel non-flammable compression fitting for
termination, the cable assembly herein is much improved, being both
stronger and more thermally protected than conventional assemblies
described by others.
[0046] Referring now to the core bundle, bundling of each core
begins with having specifications being met as provided by the
desired number of optical channels as well as desired power
handling requirements for an individual cable segment. The choice
of components combined with the addition of a longitudinal strain
relief system (SRS) determines a primary core bundle size prior to
wrapping.
[0047] The power conducting cable will have an outer protected
sheath of thermally enhanced plastic around copper wires. The outer
sheath may be thermally enhanced or further coated with such a
material, an example of which is Teflon.RTM. (E.I. du Pont de
Nemours and Company), either of which ensures high thermal
protection in a heated environment. The number of strands of copper
wire is 26 or more, which is higher than a usual lower industry
standard of six or seven strands. As such, power conducing cables
described herein have a combined current carrying capacity that is
about 30% higher than standard multi-strand copper conducts.
[0048] A coaxial cable for data (wireless) communication is
generally in the form of a 50-ohm or 75-ohm coax cable with
suitable insulation. An example is an RG-188 A/U standard cable.
The cable should handle RF interconnects; however, HF, VHF and UHF
may also be useful.
[0049] A fiber component for data handling is typically in the form
of a multi-mode fiber. Use of a multi-mode fiber offers more
reliability than a single mode fiber in the event of any thermal
and/or mechanical damage to the cable segment. The preferred fiber
is a 62.5 or 50.0 micron diameter multi-mode fiber and has a
long-chain polyimide coating (housing), which is preferably a
fluoropolyimide (e.g., aramid) that offers high resistance to heat
and melt. Each fiber has a fiber jacket with an overall dimension
at or about 12.5 microns in diameter. The fibers are inserted in
the jacket with or without a silicone buffer tube. The outer jacket
is also of thermally enhanced plastic to resist high temperatures
and be considered flameproof. The outer jacket ensures that long
term cable heating will have a negligible effect on data handling
capacity of the fibers.
[0050] Generally, the fiber component may be single or paired with
up to six channels. When possible, fibers are minimized to reduce
heat and enhance thermal resistance of the core bundle. The fibers
are generally terminated with a raceway tray, as required. In one
example, termination of a multi-mode fiber optic pair includes a
duplex fiber optic interconnect plug, exemplified by a Volition.TM.
connector system (3M Corporation, St. Paul, Minn.). An interconnect
plug is preferred to a fused butt joint as signal loss per
connector is reduced. Termination is made with strict compliance to
requirements to ensure maximum signal strength and minimal signal
loss. A selected plug (or joint) is always compatible with the
mating socket or equivalent optical transceiver on the junction
box. For example, a Volition.TM. connector system is mated with a
Volition.TM. socket.
[0051] When more than 6 fiber channels are required, they are
routed within a cable race tray and individually thermally bonded
to the next cable section for all pass through connections. Drop
point circuits to the junction box site are thermally bonded to
pre-manufactured patch cords per specifications, allowing about 26
inches from a cable race tray exit point. An alternate fiber
connector when multi-stranded fibers is to provide a dual
termination set-up using a splice and then a patch cord to
individual channels. Such termination is readily combinable with a
SACA junction box described herein.
[0052] Having a combination of both high power conducting lines and
optical fibers for highest and longest broadband transmission, the
cable assembly described herein surpasses assemblies described by
others. The SACA assembly uses multiple strands, typically three
Amerimay wire gauge (AWG) #10 multi-strand wires. Cable ends are
1/2 inch bare wire, tinned finished.
[0053] To counter longitudinal force applied to cable assemblies
described herein, an SRS system is further provided in each core
bundle before wrapping. The SRS system comprises a high strength
cable (e.g., 2100-2600 pound test [load] strength, 5.times.9 or
1.times.19, 19 strand steel 1/8 to 5/32 inch diameter cable)
inserted in the internal core bundle. The SRS cable has a high melt
point, which may be at or about or greater than 1800 degrees
Fahrenheit. The ends are finished in a loop (FIG. 2A, 2B), looping
6 inches from the clamp fitting facing surface. This provides
adequate length to slip over a strain relief stud mounted inside a
SACA junction box. With proper anchoring termination aligned to be
6 inches longer than the cable assembly specified length at either
ends and fabricated to attach to a mating stud anchoring point in
the middle of the side wall of the junction box, the SKS system
transfers longitudinal forces whether direct or from lateral
displacement of the SACA cable assembly from the cable to the
corresponding mounting stud on the junction box (see, e.g., FIG. 3
and FIG. 4). The SRS component within the SACA cable assembly
prevents damage from occurring to the wire cables or delicate fiber
optic lines and ensures there is no decoupling or stretching of the
outer flexible casing.
[0054] High thermal temperatures associated with fires and the like
will regularly damage so-called fire hardened or plenum rated
cables because the thermal boundary or protection level in that is
in such cables has no relevance to the actual energy level present
in a typical carbon-based fire. To overcome fire damage, the final
assembly step in core bundling (after assembly of the SRS system)
is wrapping the core bundle with a predetermined width band of an
aerogel material, Preferably, wrapping is performed by spiral
wrapping in a 50% overlapping configuration. Wrapping covers the
entire length of the core bundle and occurs prior to applying the
reverse-wrapped interlocking casing.
[0055] An addressable junction box with mating multi-conductor
cable plugs act as the junction device for the SACA cable. Details
of the SACA junction box are now discussed and depicted in FIGS.
3-5, 8 and 10. In general, the SACA junction box is a
multi-function junction box. It serves as a tap out point for
signal repeating, it is also a power junction point and link out
from one section to a next section. Each segmented length of cable
is combined with a repeater (via the junction box) and, thus, the
historical maximum application length of 3000 feet is not an issue
with the cable assembly described herein. A dual WAN router with
wireless connectivity eliminates the need for a separate WiFi
router and can be mounted on a mezzanine board.
[0056] Custom boxes may include one down stream feeder and one or
multiple upstream branches. An example would for use with a
multi-story structure having multiple sections off a single core.
In such a case, each SACA junction box would be typically located
about 10-20 feet apart vertically and have branched boxes on each
floor of the structure, in which each box in a horizontal distance
would be about 500 feet or more apart. Similarly, a set-up may be
provided in subterranean or enclosed environment (e.g., mined
locations, subway, caves, tunnels, as examples).
[0057] Housing for a SACA junction box is depicted in FIG. 6, and
is generally made of a heavy gauge metal and water tight box
thermally protected from outside heat by having all walls lined
with a non-conductive layer using a water repellent material, such
as an aerogel. The metal is preferably #14 gauge, as a minimum, and
preferably steel. Generally, the box is of standard size (e.g., 12
inch by 12 inch by 6 inch deep) with an empty weight of about 15-35
lbs. The front cover is hinged and lockable with either a keyless
screw lock or a keyed secure tumbler tube lock. A raised removable
mounting plate (e.g., 11 inches by 11 inches) is pre-mounted to the
back of the box for easier mounting of a main circuit board and
generally has at least one insulation layer of a suitable material,
such as an aerogel. The removal mounting plate is generally made of
a hardened metal, such as steel. The insulation layer is sized to
the box (e.g., 12 inch.times.12 inch.times.6 mm) and placed in the
interior of the box between the back plate and the raised removable
mounting plate. Holes may be prepared in the insulation layer to
align with the mounting stud positions located on the back exterior
of the junction box.
[0058] Mounting of the circuit board is typically performed using
non-thermal conducting mounts (e.g., 3/8 inch nylon stand-offs).
The main circuit board as shown in FIG. 7 is fastened to the
stand-off mounts on the removable mounting plate by either of two
methods. In a first method, screws are used, typically
1/4''.times.#40 screws. This method is preferred if the main
circuit board is the only component inside the SACA junction box.
In an alternative method, stand-off extenders (e.g., nylon #40)
with a threaded screw end (to fasten down the main circuit board)
and a threaded compatible socket end are used. This method is
preferred when accepting and attaching a second board, referred to
herein as a mezzanine board.
[0059] A mezzanine board, when provided with the junction box
system, is either a single board or a dual stacked hoard. For dual
stacking, the upper board is separated from the lower board by
about an inch using stand-offs generally made of nylon; only the
lower board is screw fastened into place. Separation by way of a
stand-off extension between boards ensures uniform separation and
adequate clearance from the junction box front cover when
closed.
[0060] The mezzanine board supports a multi-fiber mini cable race
system when multiple fiber channels are bundled in a SAGA cable
assembly segment beyond the conventional standard configuration.
The mini cable race system as exemplified in FIG. 7 allows for
direct thermal splicing of unused fiber channels within the current
configuration into a passive pass-through mode. Incoming cables are
thus allowed to enter on one side of the mini cable race system and
spiral in; outgoing cables entering on a second side spiral in and
meet their equivalent channel in the center section at which point
there is thermal splicing. The mini cable race system allows
selected channels (typically 3 maximum) to be drop spliced onto
jumper patch cables with pre-mounted male plugs suitable for direct
plug-in to the main circuit board media converters.
Re-amplification of one or more of the selected channels is thereby
accomplished, allowing limitless lengths of the SAGA cable assembly
system to be created, well beyond the conventional length for
multi-mode optical fibers.
[0061] The same mezzanine board or an additional one may be used to
support a thermal cooling system that may optionally be included in
the junction box. The thermal cooling system is a liquid cooling
system used to exhaust thermal buildup caused by internal
components or by heat arising from an external source, such as a
fire. The thermal cooling system depicted in FIG. 4 uses one or a
number of sensor thermal couples 41 attached to hot chips and
cooling tubes 42 inserted into the coupled cable segments (incoming
and outgoing). An on-board CPU monitors temperature within the box
and is activated at a pre-determined temperature. The CPU is
coupled to directional valves that are activated at the
pre-determined temperature to allow fluid flow. The system includes
a pump 43, reservoir 44, thermal pickup links 45 mounted on the
main circuit board, a flow coupler 46 and as flow valve solenoid
47. Electronics for the pump and valve portions are typically
located on the mezzanine board. Connecting tubes 48 in the system
carrying cooling fluid are generally soft flexible tubing, such as
silicon tubing. The thermal cooling system transfers heat smartly
outside the box rather than allow it to buildup and damage internal
electronics within the junction box.
[0062] Referring now to the main circuit board a representative
circuit diagram is depicted in FIG. 8A. The board is a collection
of plug-in modules and a carrier mother board for signal and power
distribution as shown in FIG. 3. Modules include a power supply
module 32 and processor module 34 that is customized for each
junction box depending on desired selections. As plug-ins, the
modules offer easy access for replacement and/or upgrades,
particularly on location. Additional components of a junction box
may include router 36 previously described and optional UWB radio
38 and/or antenna 39.
[0063] Power leads from the incoming and outgoing cable segments
are fused to the power block on the main circuit board. Power at
110 Volts is tapped off and routed to the step down DC power supply
module. A polarized header type connector in the same area as the
AC input for the mother board allows for connection to an on board
UPS that is connected to a storage cell mounted against the outer
wall of the junction box. A base 5 Volt power is run to any of the
attached modules from the power supply module, there is also signal
in and out pathways provided to interconnect the modules
eliminating the need for any loose patch cords for module to module
connections. Status circuits from each module are routed back to
the processor module for fault and operations monitoring and
control.
[0064] The junction box mother board power supply module 81
provides two DC output voltages of 5 Volt and 12 Volt and the input
supply circuit is designed as a UPS system 82 deriving its power
from an on board battery 83 (e.g., lithium polymer cell,
rechargeable when desired) as back-up when either AC power 84 is no
longer available (see FIG. 8B, lower left). Routing of DC supply
voltage is through lands on the junction box mother board. The on
board battery is designed to provide the contents of the junction
box with sufficient power for 4 continuous hours of full operation
or 12 standby hours. The battery is typically held against the side
wall of the inside of the junction box accessed by removable
clips.
[0065] The on board processor includes a separate controller system
(herein "CS" identified as 85 in FIG. 8B lower left) that comprises
a microprocessor circuitry and a downloadable and updateable
program and operating system for directing and/or monitoring
operations within the junction box. The controller system does not
depend on an operator for on-board processor operations and
provides status as well as alerts with respect to the junction box.
The CS is depicted in one embodiment as FIG. 8 and is a software
configurable device that prioritizes a series of alternatives
should the primary objective (path) become unavailable, thereby it
ensures that the communication system described herein is fault
tolerant and continuous for both normal operations and for
emergency communication.
[0066] The CS is a self contained self powered device, having its
own integral UPS and an additional conventional 110 Volts AC power
source; it is not dependent on a main supply of power to remain
operational. It has a reverse destination powered sharing
capability. It carries its own battery backup system when there is
a power outage. The battery backup system expands the current or
wattage handling capability of the DC to AC conversion system;
during non-emergency periods, the battery back-up system maintains
the normal operating power and is fully charged.
[0067] The CS cabinet depicted in FIG. 9 is approximately 24 inch
deep by 44 inch wide by 12 high of stainless steel construction
with a right angle hinged top and front locking side as the opening
cover to the cabinet. Alternate arrangements are equally suitable.
The heavy gauge cabinet (preferably stainless steel) is to
withstand corrosion in any environment and to provide maximum
mechanical protection to the internal contents. Its interior is
outfitted with an insulation layer, the material made of aerogel.
The cabinet is securely grounded to a building power supply ground
circuit. The cabinet is kept off surface without requiring physical
means for securing it. Two front to back right-angled runners are
welded to the bottom of the cabinet.
[0068] The metal foldings depicted in FIG. 9 and subsequent welding
means the cabinet is a secure vessel for protecting the internal
contents. A right angle folded top lid is edge folded and water
seal matched with the lower portion of the cabinet. A tubular type
cam lock provides a secure locking of the folded top lid to the
lower bottom portion.
[0069] The CS being is tamper resistant with multiple sensors
mounted on and within the cabinet to sense any unauthorized
tampering. Attempts at moving the cabinet or opening will trigger
an output signal from the C.S. A similar system is in place for the
SACA cables and junction box which are also continuity
monitored.
[0070] The CS also acts as a head end controller for a satellite
dish (e.g., SU); it may use KU band equipment or KA band equipment.
Line loss front a satellite low noise block (LNB) converters to a
controller modem is minimized by mounting the controller modem
within a CS cabinet (e.g., adjacent to or under the satellite
dish). The coaxial signal and power leads are long enough for
impedance matching and to facilitate easy relocation of the
satellite dish (e.g., SU) to maintain clear site angle to the
respective satellites that the dish is assigned to. In addition, an
optional dual LNB and LNA triage unit may be included with the CS
for automated swap out if there is component failure.
[0071] Satellite communications into the CS system are maintained
regardless of terrestrial power problems because the dish
components are powered by the onboard UPS-supported CS cabinet. The
CS also includes a smart controller that automates orbital
satellite location and communication which includes a self-aligning
software package provided by a suitable provider (e.g., Phase Array
Antenna by AIL EDO Industries). The CS system interfaces with
either a gimbaled mount system disclosed in co-pending U.S. patent
application Ser. No. 12/020,269 or with a motorized dish assembly
similar. Control of the gimbaled mount system or other motorized
assembly is through CS, mounted within the cabinet as depicted in
FIG. 8B. Data connection from the controller/modem to the
multi-port switch/VPN router is powered by the UPS system. Thus, as
described, is a fault tolerant communications system not dependent
on terrestrial services for operation.
[0072] Operation of the CS system are handled by a computer such as
one positioned as a command console (see FIG. 10) using a scripting
language and remote access management made possible by a specially
authorized remote terminal. For uniformity, a SACA junction box
circuit board is used in the command console and a SACA junction
box circuit board is used as a sending terminus in the CS.
[0073] The CS onboard VPN router is cross connected via a
connection, such as that provided by an Ethernet 10/100 Mb/s Cat:
5e connection, to the head end of the SACA cable exemplified in
FIG. 8B through on-board junction box mother board media
converters. The VPN router has multiple output ports that may be
configured to capture data traffic on a specific Virtual Private
Network (VPN) channels or ports and is able to dedicate such
traffic to a specific Ethernet port. Specific data traffic may then
be directed through an Ethernet patch line to an
appropriate/designated fiber channel media converter. The dedicated
VPN when becomes privatized over a channel B or channel C fiber and
subsequently delivers the routed destination, terminating
eventually in one or more media converters where it is translated
back to electrical Ethernet feed and begins its programmed use.
[0074] The use of optical regenerating media converters within the
SACA system combined with the fiber optic transport provided by the
cable assembly means data traffic originating with either a SU or
another source (e.g., microwave digital radio link) and managed by
the CS system may be relayed to near infinite distances as defined
by the SACA cable assembly and junction boxes. As such, the CS
connects to the SACA cable assembly through fiber optics and power
circuits and subsequently through a self generated solicitation
system comprising of a DHCP server within the CS that solicits each
connected junction box as each cable segment comes online. The
system as described provides a single secure network and does not
require authorization from a Building Area Network (BAN).
[0075] CS uses the mother board from the junction box for media
conversion and hence data transporting, as well as being a primary
power source. The CS will typically require a dedicated 110 Volts
AC power source with a minimum delivered current of 30 Amperes at
the power distribution panel terminating point. The 30 Ampere power
source is the primary power source for the CS and SACA cable
assembly,
[0076] The router described previously is preferably an addressable
dual WAN router and is combined with an addressable microprocessor
circuit. The combination provide status of the health and
functionality at each junction box which is relayed to a CS main
processor. Any alert is relayed immediately by the CS to a central
monitor.
[0077] Each CS cabinet is also outfitted with a transceiver and an
external SMA-type cable connected high gain antenna (e.g., a UWB
parabolic high gain fractal antenna) as depicted in FIG. 11. The
transceiver is provided with a capability of switching from
International Telephone Union standards and IEEE standard 802.15.4
restricted power to a higher power 802.15.3 restricted standard
(i.e., one limited within the U.S. under FCC rulings to military
and emergency communications use only). The increase in power and
subsequent range of the UWB (UWB) signal allows the dispersion
range with wall penetrating capability to reach approximately three
miles, such as when a governmental authority declares an
emergency.
[0078] A WiFi ITU/IEEE 802.11a/b/g antenna router device may
optionally be attached to an output port on one or more junction
boxes. Placement is such that their operation is maximized. With
the added router device, a CS may receive communications and route
them through the cable assembly and junction box (either via
channels A, B or C) to a specific WiFi or WiMAX device. For
example, law enforcement information may be relayed through the CS
to a breakout point where the high-gain long range WiFi or WiMAX
antennas are positioned to securely send a signal to a nearby
emergency vehicle or station or individual capable of picking up
the communication.
[0079] A cable raceway termination as previously described is also
installed in the CS cabinet for entry of fiber optic cables from
the SACA cable assembly into the cabinet (e.g., typically mounted
as a mezzanine board above the SACA junction box main motherboard).
Not all fiber channels need to be cross connected to communications
sources at this point, some may bypass and be routed straight
through the junction box, thereby maintaining segment to segment
functionality of the SACA system.
[0080] As described herein, the CS system also incorporates keyless
encryption of both incoming and outgoing data readily available
from one or more providers. Encryption helps ensure the secure
transport of agnostic data over the entire communications system.
Encryption is typically set to security level of Category 5, which
has also been referred to as Orange Book level B1 standard.
[0081] The CS may be used with multiple communications channels
enabling simultaneous performance one or more end purposes. In one
example, CS is used to regulate emergency and/or remote access
signals through satellite while simultaneously regulating microwave
relayed broadband internet access running from roof top to roof top
and also delivering communications signal (via the SACA system) to
numerous end-users within one or more buildings. Such flexibility
to make broadband transport available to multiple and different end
users earns the system described herein as the ultimate agnostic
transport layer.
[0082] Referring back to the junction box, the processor as
previously described may be incorporated prior to or after
installation at a field location. The processor is thus a
replaceable module that plugs into the junction box main mother
board. Power and signal routing are shared as well as distributed
on the main mother board. Simple logic as well as complex functions
may be programmed into the junction box processor; status of the
box may be monitored by a WEB enabled interface allowing full
graphical status monitoring of all junction box functions.
[0083] Each junction box has the ability to distribute three
channels (see FIG. 8A). Channel A is primarily for emergency
communications and security purposes and has been designed with
fault tolerance and a backup wireless connection circuit. Channel B
is an in-house data channel, typically used to distribute broadband
services. Channel B traffic may also include display screens,
sensor camera input, and data entry equipment, as examples. When
channel B includes display information, an additional component may
be added to the junction box for wireless broadband connectivity
from a currently addressed junction box to a dedicated display
screen (e.g., digital, plasma, HD, LCD) using a wireless UWB
dedicated DATA module as shown in FIG. 5.
[0084] When broadband wireless delivery is needed from a junction
box to a remote delivery site, such as large screen display, a
channel B media converter may be directed to a Mercury.TM. data
delivery module, which includes UWB 802.15.4 data delivery
complying with UWB technology and restricted to ITU/FCC 802.15.4
(provided by TZero Corporation). As an example, high-speed
broadband data is targeted or addressed to a discreet TCPIP
addressed UWB 802.15.4 module capable of transmitting up to 800
megabytes per second over a distance of up to 80 meters (250
ft.).
[0085] Junction box channel C is left open to the extent that
signals transmitted along any number SACA cable segments must enter
a media converter and exit a media converter therefore a
standardized format of 10/100 Mb/s is required unless a segment to
segment conversion is done to an alternate data rate or format.
[0086] The junction box when equipped with one or more mezzanine
boards may support both an incoming 10/100 Mb/s Ethernet optical
feed as well as an outgoing alternate data format converter,
thereby leaving the remainder of the contiguous sections available
for (alternate) usage.
[0087] The junction box uses optical media converters of an
improved design (depicted in FIG. 8A; exemplified in FIG. 12) to
convert incoming and outgoing fiber optic signals to conventional
TCPIP copper signals. The onboard media converters also facilitate
third party and/or external attachments to the junction box thereby
providing an agnostic transport system over a common wiring
facility. Junction box media converters are standardized at 10/100
Mb/s TCP/IP data feed terminating in RJ-45 standard connectors as
defined by the IEEE and ITU. Junction box media converters may be
upgraded, changed or added to alter the primary data format from
10/100 Mb/s Ethernet to Asynchronous Transfer Mode, or any other
fiber compatible transport methodology. The only controlling factor
is that the starting point of the segment and the end delivery
point as well as every channel C junction point between the
starting point and the end delivery point must be the same data
transmission format. Access points between the starting point and
end delivery point may allow entry for sharing access to channel C
data.
[0088] In the example of wired TCPIP signal, the signal in channel
A is first routed to a dual port wireless AIG router.
Simultaneously link and data indicator circuits are displayed on
status LED lamps (for visual indication of function) and routed to
the junction box processor. The junction box media converters are
monitored by the junction box processor, constantly ensuring proper
link activity on all communications channels. Failure of a link
indicator signifies the on board processor to instruct alternative
backup circuits to maintain connectivity with its assigned
connections.
[0089] A junction box circuit protection system allows the on board
junction box processor to reassign fiber optic cable communications
to an alternate path through an onboard UWB or a WiFi wireless
device should the cable fail. The box is also designed to
simultaneously send an alert message to the CS and command console.
For example, should data traffic on channel A (primary channel)
fail, UWB signals come into play. For operation, a dual port
wireless router switch (e.g., A/B/G protocol 10/100 speed router
switch) is incorporated onto the main mother board of the junction
box. The dual port feature allows for a primary path WAN side to be
connected to the pass through fiber optic channel A. A secondary
WAN port is also routed electrically to the data side of the UWB
radio. Failure at any time of the higher speed primary WAN channel
causes the router to automatically switch data to the UVVB radio.
The onboard WiFi circuit in the router may be directed as a traffic
port for channel A information such as remote wireless sensors or
wireless camera inputs.
[0090] Just as the SACA cable may bundled with a multi-fiber cable,
so will the junction box be equipped with multi-fiber handling
capacity. When needed, this is performed by installing the
appropriate Mezzanine board with cable race and splice tray
handling. Drop channels to a maximum of 3 must be broken out in the
splice tray and properly terminated (e.g., to patch cables) for
access to the onboard media converters on the main motherboard. The
same fiber channel (and number) coming into a media converter must
also exit and rejoin the multi-fiber cable to maintain a contiguous
delivery system.
[0091] Channel A traffic flowing through a normal fiber optic
channel in the cable segment is directed by the channel A media
converter to the dual port router onboard each junction box.
Software (up loadable firmware) will route traffic first to a
primary link fiber channel, only falling back to the secondary port
when data cannot flow on the primary circuit. The operating
firmware allows a secondary TCP/IP addressing to be assigned to the
secondary port so a second access port to router and corresponding
fiber transport layer are established. The dual port router has
both four+one ports of 10/100 Mb/s Ethernet and supports up to 254
wireless addresses with WEP and WPA authentication and MAC address
security.
[0092] The secondary WAN port is connected to the data input side
of an on board transceiver module which shares features with a dual
port router allows the secondary WAN port to become an addressable
LAN port, thereby providing dual functionality to the transceiver.
As long as the primary WAN Port is active and not experiencing any
data flow problems, then the transceiver attached to the secondary
WAN Port becomes a bi-static or mono-static radar device.
[0093] An addition plug-in card on the junction box is an EWT
transmitter, as shown in FIG. 5, referred to a Mercury Transceiver.
The card plugs into a mating connector located inside the junction
box. The EWT unit relays specific information addressed to it, as
WiFi or UWB transmissions at a pre-selectable power level. At low
power setting or normal operation, the UWB transmission complies
with FCC and IEEE/ITU 802.15.4 standards for in building use. The
addressing capability of the junction box allows for individual
power levels to be adjusted at the output port and the EWT
facilitates not only a corresponding change frequency bandwidth but
is also capable of ramping up its power output, which is controlled
by an automatic gain control (AGC) or power stepping circuit.
[0094] Another feature of the EWT plug-in device is an optional
antenna diversity module that may be added. The antenna module
supports up to four antennas for each junction box location. In one
form, the EWT extension is four UWB transmitters plugging into a
common addressable feed point on the junction box. In this case
only the digital Ethernet type signal and power is fed through the
parallel interface to drive up to four UWB transmission modules,
each with their own position sensing fractal antenna unit or high
gain directional antenna (depicted in FIG. 5). Such an application
is preferably used for large horizontal structures. Those of skill
in the art will understand that the plug-in device may be deployed
every 4 to 10 floors, depending upon the type of RF communication
being used. For longer distances in non FCC compliant areas, a high
gain directional parabolic fractal antenna may be used to maximize
distance and signal strength. This type of antenna has proven to
increase range at low power and high power settings from 50 and 100
feet normal respectively, to 500 and 1000 feet outdoors.
[0095] As described herein, controlled manufacturing steps and
pre-selected features together provide the communications system
described herein with both mechanical and thermal protection to not
only survive physical challenges but to also offer a system with
continuous power and communication, particularly to first
responders. Within a single communications assembly, the system
described herein will transmit unlimited amounts of information
using multiple types of operations that are fault tolerant and
secure.
[0096] Data handling capabilities have been expanded with the
system described herein. By combining fiber optics, the quantity of
data has increased exponentially and the communication range has
been extended well beyond the 300 foot limit previously encountered
with systems relying on copper. Radio frequency additions extend
the reach to wireless devices a distance away from a distribution
point.
[0097] Modular lengths or segments of cable may be extended to
unlimited lengths. Through the use of standardized cable fittings
for both outer cable attachments as well as individual power and
transmission lines within the cable, the capabilities of this
system are extended and incorporate a plug and play method to
commercial wiring. Cable segments remain independently addressable
and controllable in view of the versatile junction box. In
addition, having a fiber optic repeater and converter for each
optical channel, any data circuit may easily be accessed with
standard Ethernet plug fitting, making the use, servicing and
adoption of the entire system easy and cost efficient.
[0098] Independent management processor systems within each
junction box as described herein not only supply the health status
of each junction box but also control the distribution and
functioning of auxiliary operations with the scope of the junction
box. The onboard UPS processor circuit manages security,
communications, functionality and self health of the junction box
and is coordinated with an external controller device.
Pre-programmed processes and updates, managed remotely, are
performed continuously on each junction box to ensure
performance.
[0099] The improved multifunctional motherboard design with plug-in
modules as described herein facilitates functionality and servicing
of each junction box once installed. The improved design is also
suited to support multiple fiber optic channel routings as well as
multiple radio frequency transmission channels.
[0100] The junction box herein includes a unique wireless data
communications that may penetrate obstructions such as walls or
debris may also be used for extreme broadband transmission
applications and yet further, upon command, be used with a tagged
or tag-less tracking system. Hence, the junction box herein is a
fully programmable device for both normal broadband communications,
human tagged and tag-less tracking device and supplies emergency
first responder type communication in a time of disaster. In
addition, the junctions box includes a unique and intelligent
cooling method that reduces internal heat and expel the heat from
the box, thereby alleviating damage to the electronics.
[0101] The junction box terminates a cable conducting segment
(optical and electrical components) and providing connectivity as
well as mating to the next cable segment in the system. As
described previously, optical connectors are chosen to reduce space
requirements as well as signal loss. The junction box junctions
each power sections of the SAGA assembly system while tapping off
110 volts as required and may convert power to a low voltage DC for
use with additional components, such as an optical amplifiers,
address decoder, router, RF linear components, and the like, Hence,
a junction box is capable of amplifying (optically and linearly),
digital routing and decoding.
[0102] According to one or more embodiments, a SACA system includes
serial transmission cables linking two separate control points,
such as a SU and a corresponding command console, while also
allowing segmented sections of the cable at fixed and predefined
intervals to be used for retransmission through RF or digital
signals sent to third party (non-directly associated) devices.
[0103] A SACA system comprises a power conduit and a reference
ground system, along with one or more connectivity routes between a
SU and a command console. Optical signal connectivity in the system
prevents line loss and/or length limitations associated with TCP/IP
(e.g., over conventional CAT-5 or CAT-6 wired cabled connections).
A secondary signal buss (repeater) periodically connects with an
addressable junction box that, in turn, may interconnect to one or
more external devices for the purpose of retransmitting data or
bridging a gap when one occurs between two associated SACA junction
boxes.
[0104] The repeater periodically regenerates signals to ensure that
they reach their intended destination(s). With a SACA communication
system described herein, information in any form is repeated and
carried on to a central monitor communications system and also
transmitted to one or more local positions. In example, an
emergency communication is relayed not only to the central monitor
but also to local emergency personnel having RF equipment. With
this system problems such as those experienced in recent disasters
will not occur.
[0105] More specifically, with the system described an analog RF
signals that is normally inhibited by physical structures is
introduced through the cable assembly to a command console from
antenna output of any portable wireless communicator. By removing
the antenna from a handheld device and connecting the cable
assembly described herein, a RF signal is injected into the cable
assembly and through software control is accessible from the
command console, and is periodically repeated at multiple junction
box points. Addressable coaxial switches, along with a linear
amplifier, facilitate analog RF processing within the SACA junction
box. Linear amplifiers within the junction box device not only
repeat and pass along information to the next serial junction box,
but also connect information to a local antenna when one is
attached to the junction box so that the signal radiates from the
antenna.
[0106] While specific alternatives to steps of the invention have
been described herein, additional alternatives not specifically
disclosed but known in the art are intended to fall within the
scope of the invention. Thus, it is understood that other
applications of the present invention will be apparent to those
skilled in the art upon reading the described embodiment and after
consideration of the appended claims and drawing.
* * * * *