CN207766252U - A kind of double-frequency wireless ad hoc network transmission device - Google Patents
A kind of double-frequency wireless ad hoc network transmission device Download PDFInfo
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- CN207766252U CN207766252U CN201820235277.6U CN201820235277U CN207766252U CN 207766252 U CN207766252 U CN 207766252U CN 201820235277 U CN201820235277 U CN 201820235277U CN 207766252 U CN207766252 U CN 207766252U
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- wireless communication
- lband
- communication modules
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- wireless
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Abstract
A kind of double-frequency wireless ad hoc network transmission device, including processor, VHF wireless communication modules, LBAND wireless communication modules, power supply, VHF antennas, LBAND antennas, processor, VHF wireless communication modules, LBAND wireless communication modules, power supply are mounted in subassembly wrapper, processor has two sets, processor, VHF wireless communication modules, LBAND wireless communication modules, power supply are connected through power cord and data line, and VHF antennas, LBAND antennas and VHF wireless communication modules, LBAND wireless communication modules are connected through feeder line.The dual link Ad Hoc protocol service that the utility model has the function of by the operating system Linux of two sets of processors, when the generation of wireless communication module all the way signal transmission is obstructed, another way wireless communication module can be automatically switched to, realize effective transmission of field data, reduce the adverse effect that accident is brought as far as possible, strong information support is provided to deal with contingencies immediately.Based on above-mentioned, so the application prospect that the utility model has had.
Description
Technical field
The utility model is related to wireless communication technology field, especially a kind of double-frequency wireless ad hoc network transmission device.
Background technology
Under the current complicated world and social environment, how to prevent and handle public safety vital emergent event, have become
For important topic, national security, terrorist incident, natural calamity, major traffic accidents, major disease and SARS Epidemic, great ring
When the accidents such as border pollution occur, how live emergency personnel quickly and effectively implements each of distal end command centre in an orderly manner in time
Item commander's scheme and command signal, are just particularly important.Since the characteristics of all kinds of accidents is the feelings in not foresight
Occur suddenly under condition, command centre and leaders and relevant departments need to know accident field condition with prestissimo
(by live emergency personnel using relevant device by audio, video data through wireless signal transmission to distal end command centre and neck at different levels
Lead and relevant departments), every emergency preplan for usually working out is started with prestissimo, realizes fast reaction, implements emergency management and rescue
With the quickly measures such as disposition, complete monitoring is carried out to event action and sends out new instruction in due course to live emergency personnel.At present
Technology in, various floor manager scheduling methods are popularized, but transmit audio, video data legacy communications system by locally
The problem of area wireless network coverage hole influences, data-transmission interruptions happens occasionally, and pole is brought to floor manager work is carried out
Big difficult, command centre is difficult to make corresponding commander the problem of being sent out in time to each terminal, it is likely that accident is caused to handle
The delay of best period.Wireless transmission method, which is carried out, by wireless self-networking facility carries out showing between command centre and each terminal
Field command scheduling can realize the acquisition in real time of the multimedia messages such as the audio and video of mobile multimedia Transmission system and transmission, it has also become
A kind of existing main floor manager means, but existing ad hoc network facility only works under single-frequency, single-frequency is from group
The problems such as net system is not strong there are anti-interference ability after single-frequency is by external interference, will lead to live audio, video data
Transmission is obstructed, and effectively live audio, video data cannot be given to distal end command centre through wireless signal transmission, it is difficult to meet city, mountain
Wireless networking demand under the environment complexity different scenes such as area, field.VHF frequency wireless signal features are that wavelength is longer, are penetrated
With diffraction better performances, it is suitable for the more scene of building and uses, but to the high height of frame in the scene transmitted at a distance
It is more demanding, have and centainly use limitation, LBAND frequency wireless signal features are that wavelength is shorter, and bandwidth is larger, are suitable for spaciousness
The scene that region is transmitted at a distance, but building is more, the penetrability in forest of dense vegetation is slightly poor, therefore based on upper
It states, providing one kind having VHF frequency wireless signals emission function, LBAND frequency wireless signal emission functions, makees in relevant device
Under, the transmitting of VHF frequency wireless signals, the transmitting switching of LBAND frequency wireless signals can be realized automatically, is more adapted under complex environment
It transmits on-site wireless multimedia data signal to need, there is better adaptability, while the transmission bandwidth that can provide bigger is set
Applying seems particularly necessary.
Utility model content
In order to overcome existing wireless self-networking facility only to work under single-frequency, in the work of single-frequency self-organizing network system
One frequency is easy, by external interference, the transmission of live audio, video data can be caused to be obstructed, cannot fully meet complex environment
Under wireless networking demand, the utility model provide with the ultrashort wave frequency ranges of VHF (300~700Mhz) and LBAND frequency
The live audio, video data of rate range (1.4~5.8Ghz) two-way radio channel transmission, in, processor and operating system are at it
Under its component collective effect, the operating system of processor is by the dual link ad hoc network protocol function of itself, a-road-through wherein
The wireless frequency signal in road is interfered when cannot effectively transmit audio/video multimedia data, can automatically switch to another paths
Wireless frequency signal carry out the transmission of multi-medium data, to meet multimedia under various complicated geographical environments to greatest extent
Data transmission needs, and when to handle accident, live audio/video multimedia data timely and effective can be passed through wireless communication module
It is defeated by distal end command centre, distal end command centre can in time grasp field condition and send out command adapted thereto, subtract as far as possible
The adverse effect that few accident is brought, provides a kind of double-frequency wireless ad hoc network transmission device of powerful technique support.
Technical solution adopted by the utility model to solve its technical problems is：
A kind of double-frequency wireless ad hoc network transmission device, it is characterised in that including processor, VHF wireless communication modules, LBAND
Wireless communication module, power supply, VHF antennas, LBAND antennas, processor, VHF wireless communication modules, LBAND wireless communication modules,
Power supply is mounted in subassembly wrapper, and processor has two sets, power supply positive and negative polarities and two sets of processors, VHF wireless communication modules,
The power input both ends of LBAND wireless communication modules are connected by conducting wire respectively, the data output end of VHF wireless communication modules and
First set processor data input port is connected by PICE data/address bus, the data output end of LBAND wireless communication modules and
Second set of processor data input port is connected by PICE data/address bus, has reservoir, display single on first set processor
Member, operation button, VHF antennas are connected with VHF wireless communication modules by feeder line, LBAND antennas and LBAND wireless communication modules
It is connected by feeder line, VHF antennas, LBAND antennas are separately mounted to rear end at left and right sides of subassembly wrapper, the ether on two sets of processors
Network interface is connected by cable, and VHF wireless communication modules, LBAND wireless communication modules receive live audio ＆ video equipment and launch
Wireless signal, VHF wireless communication modules, LBAND wireless communication modules pass through wireless signal and distal end command centre and realize letter
Breath interaction.
Two sets of processors are the processors for having embedded SOC chip, are QCA95, QCA93, QCA98, QCA99 system
One kind in column processor finished product, two sets of processors can run the open operation system Linux of existing maturation, first set processor
Function through operating system Linux effect realization management memory, VHF wireless communication modules, display unit and button, second set
Processor realizes that the function of management LBAND wireless communication modules, two sets of processors are each responsible for through operating system Linux effects
The operating system of the management and control of VHF wireless communication modules and LBAND wireless communication modules, processor has dual link from group
Internet protocol service function, dual link Ad Hoc protocol service function are stored in memory.
The VHF wireless communication modules and LBAND wireless communication modules can support the difference of IEEE802.11 series standards
Wireless protocols, example may include IEEE802.11a, IEEE802.11b, IEEE802.11g, IEEE802.11n,
IEEE802.11ac and IEEE802.11s.
The VHF wireless communication modules and LBAND wireless communication modules are connected by the MMCX interfaces of itself with feeder line respectively
Connect external VHF antennas, LBAND antennas.
The Ethernet interface has WAN and LAN multiplex interfaces as equipment incoming end, outside Ethernet interface is connected to
It is configured to WAN mouthfuls when net radio switching device, is configured to LAN mouthfuls when be connected to wireless device in LAN when.
The power supply turns 15V DC power source adapters using 220V AC powers, and power supply can also use 15V lithium batteries to supply
Electricity.
The memory is nonvolatile memory flash memory.
The display unit is two LED display lamps, is network state indicator light, electric quantity of power supply indicator light respectively, can show
Show network state and the state of electric quantity of power supply.
The network state instruction is made of red green dual base color LED, in practical application, when it is flickered with 1 hertz frequency
It waits, in indicating that equipment wireless networking is etc. to be added, equipment wireless networking normal condition is indicated when it is always on status display,
In accessing external network switching equipment ad hoc network, green indicates that signal quality is good, and orange expression signal quality is general, red table
Show poor signal quality.
The electric quantity of power supply indicator light is made of red green dual base color LED, and after device power-up, green indicates that electricity is sufficient, orange
Color table shows that electricity is general, and red indicates that electricity is low.
The button is touch-switch, and function is to restart the booting of two sets of processors or restore the manufactures of two sets of processors to set
It sets, flicking button can trigger two sets of processors and restart, long-press release preprocessor factory reset in 6 seconds.
The VHF antennas, LBAND antennas are high-gain external antenna.
The utility model advantageous effect is：The utility model utilizes the processor and operation system technology of existing maturation,
It is communicated simultaneously using VHF wireless communication modules and LBAND wireless communication modules, VHF wireless communication modules and LBAND are wireless
Communication module receives the wireless signal that live audio ＆ video equipment is launched, under the action of two sets of processors and operating system,
When a radio channel transmission quality is poor (frequency interferences, co-channel interference, serious situations such as blocking), pass through two sets of processors
The dual link Ad Hoc protocol services that have the function of of operating system Linux (dual link ad hoc network agreement by wrapping inspection in real time
The mode of survey obtains the parameters such as bandwidth, packet loss, the signal strength of two sets of each nodes of wireless telecom equipment, passes through model specification
Different parameters the more different links of weighted value calculating ratio communication quality, then pass through the method for route handoff and realize automatic choosing
Select optimal wireless transfer channel), the audio/video multimedia signal at next radio channel transmission scene can be automatically switched to remote
Manager is held, after manager receives live audio, video data, can instruction (actual use effectively be sent out to scene in real time
In, the wireless signal distance of VHF wireless communication modules and the transmitting of LBAND wireless communication modules is if apart from enough, meeting is direct
Command centre connects with distal end, if apart from remote, can be connected to by way of other node device automatic relays and distally be referred to
Wave center)；And the bandwidth lose after multi-hop can be effectively reduced, it is suitable for the various complex environments such as interior of building, montane
The use at lower scene.The multi-medium datas such as the utility model energy simultaneous transmission voice, video, data, in radio communication mold all the way
When block generation signal transmission is obstructed, another way wireless communication module can be automatically switched to, effective transmission of field data is realized,
Reduce the adverse effect that accident is brought as far as possible, strong information support is provided to deal with contingencies immediately.It is based on
It is above-mentioned, so the application prospect that the utility model has had.
Description of the drawings
The utility model is described further with reference to the accompanying drawings and examples.
Fig. 1 is the block diagram of the utility model.
Fig. 2 is the utility model circuit diagram.
Specific implementation mode
Fig. 1, shown in 2, a kind of double-frequency wireless ad hoc network transmission device, including processor U2 and U1, VHF radio communication mold
Block U3, LBAND wireless communication module U4, power supply G, VHF antenna T1, LBAND antenna T2, processor U2 and U1, VHF wireless communication
Module U3, LBAND wireless communication module U4, power supply G are mounted in subassembly wrapper, and processor has two sets, power supply G positive and negative polarities and place
Manage device U2 power inputs both ends VCC1 and GND1, processor U1 power inputs both ends VCC4 and GND5, VHF wireless communication module U3
The power input both ends VCC3 and GND3 of power input both ends VCC2 and GND2, LBAND wireless communication module U4 is respectively by leading
Line connects, and the data output end of VHF wireless communication modules U3 and the data-in port of first set processor U2 pass through PICE numbers
It is connected according to bus, the data output end of LBAND wireless communication modules U4 and the data-in port of second set of processor U1 pass through
PICE data/address bus connects, and has reservoir CC, display unit LED1 and LED2, operation button SK on first set processor U2,
VHF antennas T1 is connected with VHF wireless communication modules U3 by feeder line, and LBAND antenna T2 and LBAND wireless communication modules U4 passes through
Feeder line connects, and VHF antenna T1, LBAND antennas T2 is separately mounted to rear end at left and right sides of subassembly wrapper, on two sets of processors U2 and U1
Ethernet interface connected by cable, VHF wireless communication module U3, LBAND wireless communication modules U4 receives live audio and video
The wireless signal that equipment is launched, VHF wireless communication module U3, LBAND wireless communication modules U4 pass through wireless signal and distal end
Command centre realizes information exchange.
Fig. 1, shown in 2, two sets of processors U2 and U1 are the processors for having embedded SOC processor chips, are
One kind in QCA95, QCA93, QCA98, QCA99 series processors finished product, two sets of processors U2 and U1 can run existing maturation
Open operation system Linux, first set processor U2 realize management memory CC, VHF wireless communication through operating system Linux
The function of module U3, display unit LED1, LED2 and button SK, second set of processor U1 realize management through operating system Linux
The function of LBAND wireless communication modules U1, two sets of processors U2 and U1 be each responsible for VHF wireless communication module U3 and LBAND without
The operating system of the management and control of line communication module U4, two sets of processors U2 and U1 has dual link Ad Hoc protocol service
Function, dual link Ad Hoc protocol service function are stored in memory CC.VHF wireless communication modules U3 and LBAND is wireless
Communication module U4 can support the different wireless protocols of IEEE802.11 series standards, example may include IEEE802.11a,
IEEE802.11b, IEEE802.11g, IEEE802.11n, IEEE802.11ac and IEEE802.11s.VHF wireless communication modules
U3 and LBAND wireless communication modules U4 is separately connected external VHF antennas T1, LBAND with feeder line by the MMCX interfaces of itself
Antenna T2, VHF wireless communication module U3 and LBAND wireless communication module U4 has power amplification circuit, expands wireless signal
Communication overlay distance.Ethernet interface has WAN and LAN multiplex interfaces as equipment incoming end, when Ethernet interface is connected to
It is configured to WAN mouthfuls when outer net radio switching device, is configured to LAN mouthfuls when be connected to wireless device in LAN when.Power supply G
15V DC power source adapters are turned using 220V AC powers, power supply G can also use 15V lithium battery power supplies.Memory CC is non-easy
The property lost memory flash memory.Display unit is two LED display lamps, is that network state indicator light, power supply G electricity refer to respectively
Show lamp, can show network state and the state of power supply G electricity.Network state instruction is made of red green dual base color LED1, practical
In, when it is flickered with 1 hertz frequency, in indicating that equipment network is etc. to be added, when it is always on status display
Indicate equipment network normal condition, in accessing external network switching equipment ad hoc network, green indicates that signal quality is good, orange table
Show that signal quality is general, red indicates poor signal quality.Electric quantity of power supply indicator light is made of red green dual base color LED2, device power-up
Afterwards, green indicates that electricity is sufficient, and orange expression electricity is general, and red indicates that electricity is low.Button SK is touch-switch, and function is
Restart two sets of processor bootings or restore the default setting of two sets of processors, flicking button can trigger two sets of processors and restart, long
By release preprocessor factory reset in 6 seconds..VHF antenna T1, LBAND antennas T2 is high-gain external antenna.
Fig. 1, shown in 2, the utility model utilizes processor U2, U1 and operating system of existing maturation, uses simultaneously
VHF wireless communication module U3 and LBAND wireless communication modules U4 is communicated, VHF wireless communication module U3 and LBAND channel radios
Letter module U4 receives the wireless signal that live audio ＆ video equipment is launched, in two sets of processors U2, U1 and the work of operating system
Under, when a radio channel transmission quality is poor (frequency interferences, co-channel interference, serious situations such as blocking), pass through two sets
(dual link ad hoc network agreement is logical for the dual link Ad Hoc protocol service that the operating system Linux of processor U2, U1 have the function of
The mode for crossing packet detection in real time obtains two sets of wireless telecom equipment VHF wireless communication module U3 and LBAND wireless communication modules U4
The parameters such as bandwidth, packet loss, signal strength of each node, less by the weighted value calculating ratios of the different parameters of model specification
With the communication quality of link, optimal wireless transfer channel is then automatically selected by the realization of the method for route handoff), it can cut automatically
The audio/video multimedia signal at next radio channel transmission scene is changed to remote side administration side, manager receives live sound and regards
Frequency is after, and effectively capable of sending out instruction to scene in real time, (in actual use, VHF wireless communication modules U3 and LBAND is wireless
The wireless signal distance of communication module U4 transmittings with distal end command centre if apart from enough, can directly connect, if distance
Far, distal end command centre can be connected to by way of other node device automatic relays)；And after multi-hop capable of being effectively reduced
Bandwidth lose is suitable for the use at the various complicated scenes such as interior of building, montane.The utility model energy simultaneous transmission language
The multi-medium datas such as sound, video, data can automatically switch to another when the generation of wireless communication module all the way signal transmission is obstructed
Wireless communication module all the way realizes field data and effectively transmits, and reduces the adverse effect that accident is brought as far as possible, is
Immediately it deals with contingencies and provides strong information support.Based on above-mentioned, so the application prospect that the utility model has had.
The basic principles and main features and advantages of the present invention that the utility model has been shown and described above, for ability
For field technique personnel, it is clear that the utility model is limited to the details of above-mentioned exemplary embodiment, and new without departing substantially from this practicality
In the case of the spirit or essential attributes of type, the utility model can be realized in other specific forms.Therefore, no matter from which
From the point of view of point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the utility model is by appended right
It is required that rather than above description limit, it is intended that all changes that will be fallen within the meaning and scope of the equivalent requirements of the claims
Change is embraced therein.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (7)
1. a kind of double-frequency wireless ad hoc network transmission device, it is characterised in that including processor, VHF wireless communication modules, LBAND without
Line communication module, power supply, VHF antennas, LBAND antennas, processor, VHF wireless communication modules, LBAND wireless communication modules, electricity
Source is mounted in subassembly wrapper, and processor has two sets, power supply positive and negative polarities and two sets of processors, VHF wireless communication modules, LBAND
The power input both ends of wireless communication module are connected by conducting wire respectively, the data output end of VHF wireless communication modules and first
Set processor data input port is connected by PICE data/address bus, the data output end of LBAND wireless communication modules and second
Set processor data input port is connected by PICE data/address bus, has reservoir, display unit, behaviour on first set processor
Make button, VHF antennas are connected with VHF wireless communication modules by feeder line, and LBAND antennas and LBAND wireless communication modules pass through
Feeder line connects, and VHF antennas, LBAND antennas are separately mounted to rear end at left and right sides of subassembly wrapper, and the Ethernet on two sets of processors connects
Mouth is connected by cable, and VHF wireless communication modules, LBAND wireless communication modules receive the nothing that live audio ＆ video equipment is launched
Line signal, VHF wireless communication modules, LBAND wireless communication modules realize that information is handed over by wireless signal and distal end command centre
Mutually.
2. a kind of double-frequency wireless ad hoc network transmission device according to claim 1, it is characterised in that two sets of processors are tools
There are the processor of embedded SOC chip, two sets of processors that can run operating system Linux.
3. a kind of double-frequency wireless ad hoc network transmission device according to claim 1, it is characterised in that VHF wireless communication modules
The different wireless protocols of IEEE802.11 series standards can be supported with LBAND wireless communication modules.
4. a kind of double-frequency wireless ad hoc network transmission device according to claim 1, it is characterised in that power supply is handed over using 220V
Galvanic electricity source turns 15V DC power source adapters, and power supply can also use 15V lithium battery power supplies.
5. a kind of double-frequency wireless ad hoc network transmission device according to claim 1, it is characterised in that display unit is two
LED display lamps are network state indicator light, electric quantity of power supply indicator light respectively, can show the shape of network state and electric quantity of power supply
State.
6. a kind of double-frequency wireless ad hoc network transmission device according to claim 1, it is characterised in that button is touch-switch.
7. a kind of double-frequency wireless ad hoc network transmission device according to claim 1, it is characterised in that VHF antennas, LBAND days
Line is high-gain external antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820235277.6U CN207766252U (en) | 2018-02-09 | 2018-02-09 | A kind of double-frequency wireless ad hoc network transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820235277.6U CN207766252U (en) | 2018-02-09 | 2018-02-09 | A kind of double-frequency wireless ad hoc network transmission device |
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| Publication Number | Publication Date |
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| CN207766252U true CN207766252U (en) | 2018-08-24 |
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| CN201820235277.6U Expired - Fee Related CN207766252U (en) | 2018-02-09 | 2018-02-09 | A kind of double-frequency wireless ad hoc network transmission device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110446209A (en) * | 2019-08-07 | 2019-11-12 | 广州维德科技有限公司 | A kind of communication system and its implementation based on double frequency ad hoc network base station |
-
2018
- 2018-02-09 CN CN201820235277.6U patent/CN207766252U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110446209A (en) * | 2019-08-07 | 2019-11-12 | 广州维德科技有限公司 | A kind of communication system and its implementation based on double frequency ad hoc network base station |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180824 Termination date: 20220209 |