CN106211047A - A kind of communication system of movable equipment based on Mesh network - Google Patents
A kind of communication system of movable equipment based on Mesh network Download PDFInfo
- Publication number
- CN106211047A CN106211047A CN201610780428.1A CN201610780428A CN106211047A CN 106211047 A CN106211047 A CN 106211047A CN 201610780428 A CN201610780428 A CN 201610780428A CN 106211047 A CN106211047 A CN 106211047A
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- China
- Prior art keywords
- communication system
- mesh
- mesh network
- movable equipment
- equipment based
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update
- H04W40/30—Connectivity information management, e.g. connectivity discovery or connectivity update for proactive routing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
Abstract
The embodiment of the present invention provides the communication system of a kind of movable equipment based on Mesh network, and described communication system includes: primary processor, route processors, Mesh communication module, locating module and external equipment；Described primary processor is connected with described external equipment, described route processors, for carrying out data transmission with described external equipment and described route processors；Described route processors, is connected with described Mesh communication module, carries out information transmission networking by described Mesh communication module with the external world；Described locating module is connected with described route processors, positions described movable equipment and location information is sent by described Mesh communication module.Network stabilization in the present invention, it is achieved that long-distance transmissions, completes the extension of network, it is ensured that the fluency of signal transmission, and have on hardware with low cost, be easily installed, processing speed is fast, flexible structure and the rapid advantage of maintenance.
Description
Technical field
The invention belongs to radio communication, computer realm, based on Mesh network removable set it particularly relates to a kind of
Standby communication system.
Background technology
Along with improving constantly of living standards of the people, automobile the most progressively instead of the walking-replacing tool such as bicycle, electric motor car
Status.The use of automobile is also widely used in each field, such as engineering fleet, wedding fleet etc..People play, work
All select automobile as the vehicles etc. personal activity or work group.During fleet goes on a journey, due to speed and position
Difference, fleet's formation can change, and vehicle has the unexpected situation fallen behind to occur, and this is accomplished by between vehicle carrying out real-time regarding
Frequently command, control, communications, and information exchange.Traditional communication mode passes through mobile phone and radio communication.Although radio can be accomplished voice, regard
The communication of frequency, but when vehicle high-speed is advanced and uses radio to communicate, seriously, impact is logical for signal meeting time delay, distortion
Letter process.When using mobile communication in the place away from base station, easily produce the work efficiency fall caused because communication is smooth
Low problem, more seriously can cause the safety problem of life and property.It is badly in need of finding a kind of video and voice of can stably transmitting
Network solves each vehicle real time exchange in trip fleet.
Such communication issue also appears on other movable equipments.
Summary of the invention
It is an object of the invention to, for solving to wait movable equipment can not carry out the problem of real-time Communication for Power between outdoor fleet,
A kind of based on Mesh network the communication system provided because communication the most freely throws into question is provided.
The present invention solves the technical scheme that prior art problem used and includes:
A kind of communication system of movable equipment based on Mesh network, described communication system includes:
Primary processor, route processors, Mesh communication module, locating module and external equipment；
Described primary processor is connected with described external equipment, described route processors, is used for and described external equipment and institute
State route processors to carry out data transmission；
Described route processors, is connected with described Mesh communication module, is carried out with the external world by described Mesh communication module
Information transmission networking；
Described locating module is connected with described route processors, positions described movable equipment and will position information
Sent by described Mesh communication module.
Preferably, described Mesh communication module includes two radio-frequency modules, and the frequency range of said two radio-frequency module is different.
Preferably, described Mesh communication module utilizes Active Routing Protocol in Active, carries out multi-hop communication.
Preferably, described primary processor is based on android system.
Preferably, described external equipment includes display and/or mike and/or photographic head.
Preferably, described display is touching-type monitor.
Preferably, described primary processor is connected by Ethernet interface with described route processors.
Preferably, described locating module is connected with described route processors by RS232.
Preferably, described route processors connects has PCIe to turn pci interface, for serial data changes into the parallel of PCI
Data.
Preferably, described Mesh communication module is embedded in the slot of described PCI.
There is advantages that
One really realizes the theory of networking, makes outdoor real-time Communication for Power be possibly realized, goes out administrative staff and be not necessarily personnel, property
Safety concerns.Even if generation emergency, also can quickly find solution, the probability that reduction accident occurs.
Its two Mesh network realizes long-distance transmissions, completes the extension of network, it is ensured that the stability of Mesh network, logical
Communication distance is farthest up to 800 meters.Double RF moves in Mesh network, and the radio-frequency card division of labor difference of two kinds of frequency ranges, a frequency range is born
Duty receives signal, and a frequency range is responsible for sending signal, is applied proactive routing protocol, by sending the detection with routing iinformation
Bag calculates optimal down hop route, it is achieved multi-hop communication.So can reduce the delay time that network is set up the initial stage and produced,
The fluency of voice and video signal transmission is ensured in performance indications.
Its three native system uses Android operation system, develops based on linux kernel, and Java is as programming language in use,
Code is increased income and freely.Have on hardware with low cost, be easily installed, processing speed is fast, flexible structure and maintenance the most excellent
Point.
Accompanying drawing explanation
Fig. 1 fleet constitutes self-grouping network topological structure schematic diagram；
The self-grouping network topological structure schematic diagram that Fig. 2 fleet breaks rank；
Fig. 3 multihop network communication topology figure；
Fig. 4 Vehicular communication system hardware platform schematic diagram；
Fig. 5 route processors interface diagram；
Detailed description of the invention
Technical scheme is described in detail, in order to become apparent from, intuitively below with reference to drawings and the specific embodiments
Understand essence of the present invention.
The present invention is described as a example by Vehicular communication system.
Mobile Mesh network is also referred to as ad-hoc network, is the new wireless networks that combines with computer of router, this
Network has the feature of high-throughput, low time delay, and networking flexibility can realize multi-hop, and supports that non line of sight transmits, and can complete voice
Communication is passed back with video.At present, the intelligence system of automotive interior can realize calling, navigating and other entertainment selections, flat
Platform is ripe, market demand is high.Vehicular communication system is constituted from group based on intelligence system in car, application Double RF Mesh network
Net, can find the concrete condition of each car in fleet in real time, including position and vehicle condition, personnel's property etc..This network not only cost
Low, safety is high, moreover it is possible to ensure work efficiency with trip personal security.
Present invention Vehicular communication system based on Mesh network uses IEEE802.11 wireless network card, applies high-power RF
Being stuck in the free frequency range of ISM to communicate, on car, electric power system uses solar powered mode, it is ensured that vehicle is in remote districts or dislikes
Can be with continued power in bad environment.Whole system can be embedded in the middle of main driving and assistant driver seat, and occupant can see
Content on display screen, it is to avoid the appearance of blind area.Display screen uses touch screen form, convenient operation.This system integration voice
Communication interface and video acquisition interface, occupant is equipped with bluetooth earphone with mike for real-time Communication for Power.GPS location system in car
System shows the position of vehicle, convenient report head car and other vehicles in real time.
As shown in Figure 4, for present system structure chart, comprising:
Primary processor 11, route processors 12, Mesh communication module 13, locating module 14 and external equipment 15.
Primary processor is connected with external equipment, route processors, for carrying out data with external equipment and route processors
Transmission.Route processors, is connected with Mesh communication module, carries out information transmission networking by Mesh communication module with the external world.
Locating module is connected with route processors, positions movable equipment and location information is sent by Mesh communication module
Go out.
Above-mentioned external equipment includes touching device (can be show touch screen), photographic head and mike, be used for the information that gathers or
The information that display receives.Touch display screen and can show main menu, viewing video flowing, there is tangible function, for driving simultaneously
Person provides convenience, does not interferes with normal driving.Photographic head and mike respectively by video audio interface access main process
In device.
Primary processor is the key component of system, main connection route processor and external equipment.Primary processor selects
By android system as operating system, the mobile Mesh network utilizing Andrioid system building can be that application program carries
For efficient connected mode, mobile network's connection need not be born and bring cost issues.
Route processors, main being responsible for moves Mesh networking.Route processors connects locating module, Mesh communication module,
And route processors is attached by Ethernet interface with primary processor.Open on the host processor and run route processing
Device, Mesh communication module sends radiofrequency signal and carries out the establishment of Mesh network.
As it is shown in figure 5, connection Ethernet interface, GPS module, PCIe turn pci bus interface on route processors.
Ethernet interface is used for connecting primary processor and route processors, and processor can see nothing by route processors
Line configuration is the most correct.When network service has some setbacks, the stream of wireless data transmission can be ensured by amendment radio configuration
Smooth property.Such as revise the parameter such as channel, data transmission rate.All right other laptop devices external of Ethernet interface, it is simple to
Vehicle is in driving procedure, and the amendment of other staff scene configures, improves work efficiency.
Locating module such as GPS module formula accesses route processors by RS232 interface, and this is by Satellite Navigation Technique and nothing
The application that line location technology combines.This combination both can provide higher precision and corresponding speed, can cover again wider
Scope, it is achieved position accurately.Gps antenna is before travel arranged on the afterbody of car by fleet, it is ensured that satellite can navigate to car
Particular location.The requirement of mainboard can be accepted or rejected by this module according to user, and some mainboard producer can be integrated by GPS module
On mainboard, facilitate user to connect, reduce cost.GPS module responsible node positions, and after obtaining node particular location, can lead to
Cross MANET and pass to other adjacent nodes.If distant, beyond communication range, then complete mobile Mesh by the form of multi-hop
The telecommunication of network.
PCIe EBI can realize high speed serialization point-to-point dual pathways high bandwidth transmission, and PCIe turns pci interface by serial
Data transmission changes into the parallel data transmission of PCI, and transfer rate is minimum up to 2.5G.In PCI slot, place radio-frequency module (penetrate
Frequency card), the quantity of slot can extend, and route processors can also self-defined Mini pci card.
Mesh communication module, if only accessing a radio-frequency card, according to the wireless conflict avoidance principle (CSMA/ of Ethernet
CA), when there being radio node positive transmission data, another one node cannot send and accept data and cause video flowing
Or speech data can not concurrent transmission, cause systematic function to decline.To this end, the present invention uses Double RF scheme, Mesh communication mould
Block includes two radio-frequency modules, and the frequency range of two radio-frequency modules is different, i.e. wireless access and data back is respectively allocated to radio frequency
Card 1 and radio-frequency card 2 are responsible for (two radio-frequency modules), i.e. one of them channel and are specifically intended for connecting wireless client, another channel
It is specifically intended for wireless backhaul data transmission, and the two channel is mutually orthogonal.Therefore Double RF can improve systematic function.
It is below the concrete application of above-mentioned Vehicular communication system:
As it is shown in figure 1, car 1 is head car, the track route of other vehicles that take charge, it is ensured that fleet's harmony is advanced.Fleet
In four cars advance with formation in scheming, each car is respectively arranged with Vehicular communication system.Because this practical selection Double RF carries out sending out
Penetrating and receive, 4 antennas 5 placed respectively by each car.The dynamic topology figure of each Che Neidouyou fleet ensures that formation is constant.
When fleet sets out, Vehicular communication system opened by car 1, car 2, car 3, car 4 simultaneously, when radio-frequency module is started working
Time, according to Routing Protocol, all nodes can be searched mutually and find the address of terminal, finally set up routed path, now from group
Net is successfully established.Easily there is broadcast storm in the Routing Protocol traditional when sending broadcast packet, makes whole system collapse.This route
Agreement belongs to priori formula route, and each node in network obtains network by the periodically respective topology information of exchange to be owned
The network topological information of other node, irrespective of whether to use this route, when node needs to send packet
Time, as long as the route going to destination node exists, required time delay is the least.
As in figure 2 it is shown, change formation when fleet due to traffic or other situations, now move phase original in Mesh network
Neighbors changes, and the adjacent node of car 1 becomes car 4 and car 2, and other node is all upset.Now Mesh network is known rapidly
Not new adjacent node, and form new routed path, again constitute MANET, embody the stability of MANET.Due to car
The formation of team is disturbed, and car 1 is conversed with other vehicles by mike through WLAN, car 2, car 3 and car 4 basis
The particular location that GPS alignment system obtains, is sent to car 1 by LAN, and car 1 commands fleet to recover team according to the information obtained
Shape.
As it is shown on figure 3, multihop network communication topology figure.Main display car 1 is to the remote multi-hop communication of car 3.To reality
Existing car 1 and the communication of car 3, need to select channel a, channel b to communicate.First by all vehicles in configuration
Radio-frequency card 1 is channel a, and radio-frequency card 2 is channel b.When car 1 photos and sending messages is to car 3, car 1 first pass through channel a with
Car 4 communicates, and car 4 is communicated with car 2 by channel b again, and rear car 2 is communicated with car 3 by channel a.Being configured so that can
To allow the handling capacity in network be doubled and redoubled, and no matter how fleet's formation changes, and can form Mesh network between vehicle,
Keep communication.
Protection scope of the present invention is not limited to the above embodiments, it is clear that those skilled in the art can be to this
Bright carry out various change and deformation without deviating from scope and spirit of the present invention.If these are changed and deformation belongs to present invention power
Profit require and equivalent technologies in the range of, then the intent of the present invention also comprise these change and deformation interior the above be only
The preferred embodiment of the present invention, it is noted that for those skilled in the art, without departing from the present invention
On the premise of principle, it is also possible to make some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (10)
1. the communication system of a movable equipment based on Mesh network, it is characterised in that: described communication system includes:
Primary processor, route processors, Mesh communication module, locating module and external equipment；
Described primary processor is connected with described external equipment, described route processors, is used for and described external equipment and described road
Carried out data transmission by processor；
Described route processors, is connected with described Mesh communication module, carries out information by described Mesh communication module with the external world
Transmission networking；
Described locating module is connected with described route processors, positions described movable equipment and location information is passed through
Described Mesh communication module sends.
2. the communication system of movable equipment based on Mesh network as claimed in claim 1, it is characterised in that: described Mesh
Communication module includes two radio-frequency modules, and the frequency range of said two radio-frequency module is different.
3. the communication system of movable equipment based on Mesh network as claimed in claim 1, it is characterised in that: described Mesh
Communication module utilizes Active Routing Protocol in Active, carries out multi-hop communication.
4. the communication system of movable equipment based on Mesh network as claimed in claim 1, it is characterised in that: described main place
Reason device is based on android system.
5. the communication system of movable equipment based on Mesh network as claimed in claim 1, it is characterised in that: described external
Equipment includes display and/or mike and/or photographic head.
6. the communication system of movable equipment based on Mesh network as claimed in claim 5, it is characterised in that: described display
Device is touching-type monitor.
7. the communication system of movable equipment based on Mesh network as claimed in claim 1, it is characterised in that: described main place
Reason device is connected by Ethernet interface with described route processors.
8. the communication system of movable equipment based on Mesh network as claimed in claim 1, it is characterised in that: described location
Module is connected with described route processors by RS232.
9. the communication system of movable equipment based on Mesh network as claimed in claim 1, it is characterised in that: described route
Processor connects has PCIe to turn pci interface, for serial data changes into the parallel data of PCI.
10. the communication system of movable equipment based on Mesh network as claimed in claim 9, it is characterised in that: described
Mesh communication module is embedded in the slot of described PCI.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610107462 | 2016-02-26 | ||
| CN2016101074622 | 2016-02-26 |
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| CN106211047A true CN106211047A (en) | 2016-12-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110012081A (en) * | 2019-03-21 | 2019-07-12 | 安克创新科技股份有限公司 | A kind of safety protection method based on netted networking, device, system and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110012081A (en) * | 2019-03-21 | 2019-07-12 | 安克创新科技股份有限公司 | A kind of safety protection method based on netted networking, device, system and storage medium |
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