CN103442080A - Vehicle-mounted communication system based on WAVE - Google Patents
Vehicle-mounted communication system based on WAVE Download PDFInfo
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- CN103442080A CN103442080A CN2013104027102A CN201310402710A CN103442080A CN 103442080 A CN103442080 A CN 103442080A CN 2013104027102 A CN2013104027102 A CN 2013104027102A CN 201310402710 A CN201310402710 A CN 201310402710A CN 103442080 A CN103442080 A CN 103442080A
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Abstract
The invention discloses a vehicle-mounted communication system based on a WAVE. The vehicle-mounted communication system comprises a first external device, a second external device, a WAVE protocol stack, an expansion interface, a road-side unit and an on-chip unit which is installed on a vehicle. The first external device, the road-side unit, the WAVE protocol stack, the expansion interface, the on-chip unit and the second external device are connected in turn. A WAVE standard coverage region is formed by connecting the road-side unit, the on-chip unit and the WAVE protocol stack. The WAVE is adopted by the vehicle-mounted communication system, a safe vehicular ad hoc network which has wide coverage range, high quality and support for multimedia information is established. Besides, disposition is easier, cost is lower and angle of business mode is further met.
Description
Technical field
The present invention relates to a kind of Vehicular communication system based on WAVE.
Background technology
In recent years, universal along with auto industry, the surge of Car ownership, congested day by day serious of road, the taking place frequently of traffic accident, and the continuing to bring out of mobile unit of all kinds, the research in vehicle-carrying communication field has caused that people pay close attention to greatly.Traditional vehicle communication network only is aimed at the closed communication network of the purposes designs such as highway charging usually, thereby development recently makes vehicle support workshop autonomous communication intercommunication security information.But, due to the defect aspect the network architecture, original system can only provide the information interaction in regional area to the vehicle in running at high speed, can't realize that vehicle and intelligent transportation control centre carry out Real-time Data Service and access band wireless network.Angle from the automobile wireless access technology, the current most communication technology of vehicle mobile communication network research based on IEEE 802.11, but 802.11 have that coverage is little, need frequent switching to connect roadside unit in the vehicle mobile process, service quality (QoS) is provided by weakness weak, that can't provide high-quality to support to multimedia messages.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of wide coverage, high-quality and supports multimedia messages, safety and easily deployment, the Vehicular communication system based on WAVE cheaply.
For addressing the above problem, the present invention adopts following technical scheme: a kind of Vehicular communication system based on WAVE, comprise unit on the sheet of installing on the first external device (ED), the second external device (ED), WAVE protocol stack, expansion interface, roadside unit and vehicle, on described the first external device (ED), roadside unit, WAVE protocol stack, expansion interface, sheet, unit is connected successively with the second external device (ED), and on described roadside unit, sheet, unit and WAVE protocol stack connect into WAVE standard overlay area.
As preferably, described the first external device (ED) is connected with roadside unit by expansion interface; Described the second external device (ED) is connected with unit on sheet by expansion interface.
As preferably, go up unit for described and be connected with roadside unit by the WAVE protocol stack.
The beneficial effect that the present invention is based on the Vehicular communication system of WAVE is: because described Vehicular communication system has adopted WAVE, create wide coverage, high-quality and supported the automobile self-organized network of multimedia messages, safety, and more easily dispose, cost is also lower, more meets the angle of business model.
The accompanying drawing explanation
Fig. 1 is the theory diagram that the present invention is based on the Vehicular communication system of WAVE.
Fig. 2 is the structure chart that the present invention is based on WAVE protocol stack in the Vehicular communication system of WAVE.
Embodiment
Refer to shown in Fig. 1 to Fig. 2, the present invention adopts following technical scheme: a kind of Vehicular communication system based on WAVE, comprise unit on the sheet of installing on the first external device (ED), the second external device (ED), WAVE protocol stack, expansion interface, roadside unit and vehicle, on described the first external device (ED), roadside unit, WAVE protocol stack, expansion interface, sheet, unit is connected successively with the second external device (ED), and on described roadside unit, sheet, unit and WAVE protocol stack connect into WAVE standard overlay area.
Described the first external device (ED) is connected with roadside unit by expansion interface; Described the second external device (ED) is connected with unit on sheet by expansion interface.Described upper unit is connected with roadside unit by the WAVE protocol stack.
Macroscopic view, the communication mode of WAVE, mainly comprise the communication between vehicle and vehicle, the communication between vehicle and roadside unit, and the communication between vehicle and portable equipment.Form small-sized wireless ad-hoc network on the sheet of installing on vehicle between unit, on sheet between unit and pedestrian, complete the mutual of the information such as safety, amusement; On sheet, unit can also be connected with networks such as the Internet, mobile communications network, WLAN (wireless local area network) in wired or wireless mode by roadside unit, completes the exchange of information.Module in WAVE mainly comprises unit on sheet, roadside unit and WAVE protocol stack.OBU based on the embedded processing unit (unit on the sheet of installing on automobile), be equivalent to the STA in 802.11 networks, i.e. mobile terminal in communication system, and different OBU are the difference of communication mode and frequency; RSU (roadside unit) is equivalent to the AP in 802.11, mainly is responsible for the access of board units, and interconnected with other networks.In the situation that there is no roadside unit, form mobile vehicular ad hoc network network on the sheet of installing on vehicle between unit; Roadside unit is communicated by letter with unit by using WAVE protocol stack on sheet, thereby completes the reciprocal process of application message.
The WAVE standard has adopted the protocol infrastructure based on 802.11, reaches the higher traffic rate of acquisition and larger transmission range, and the purpose merged better with existing Internet and mobile communications network.The WAVE standard is made the V2V safe and feasible more that becomes of communicating by letter with V2I by a series of service and interface by standardization, and also the application (comprising vehicle safety, automatic charging, enhanced navigation and traffic administration etc.) for wider model under vehicle environment provides the foundation.
The WAVE protocol stack is divided into management plane and datum plane (as Fig. 2), IETF:Internet engineering duty group; LLC: logic is controlled; MAC: media access control; The MLME:MAC layer management entity; PHY: physical layer; PLME: PLME; The WME:MAVE management entity; The WSMP:WAVE short-message protocol.Management plane is responsible for parameter and the behavior of protocol stack and is controlled, and datum plane is responsible for secured transmission of payload data information.802.11p defined physical layer and MAC layer; Strengthen mechanism 1609.4 defined a kind of MAC, provide the multi-channel collaboration function so that only have the equipment of a reception antenna can take full advantage of physical layer channel (control channel, service channel), can provide for the message of high priority more real-time transmission service simultaneously; 1609.3 defined the transport services of WAVE, and stipulated function and the primitive of MAC layer management entity (MLME) and WAVE management entity (WME); 1609.2 formulated the security mechanism in WAVE, the functions such as encryption, authentication and privacy be provided; 1609.1 for storage and the access of resource in management, registration and the OBU equipment of remote application provides standardized interface.
WAVE is divided into service providing device (PD:ProviderDevice) and subscriber equipment (UD:UserDevice) two classes to communication equipment, and the operational process of WAVE is as follows:
(1) PD starts, and the WAVE information on services (WSA) of going on the air, opened a WAVE Basic Service Set (WBSS).Carried such as using channel in WSA, the information of the operation parameter etc. of which application program, each application program is provided.This process is equivalent to the process of broadcast Beacon information in 802.11.
(2) after UD enters PD the zone of WBSS is provided, receive the information WSA of PD broadcast, according to stored secret key decryption WSA, and analysis configuration information wherein, judge whether to be complementary with the configuration information of oneself, if coupling adds in this WBSS, and according to the configuration of the configuration information in WSA relevant parameter, as frequency of utilization and channel etc.
(3) set up a communication link between PD and UD, now, no longer included dividing of PD and UD, PD and UD transfer equity service (P2P pattern) to, start the equality exchange data information between them, and be no longer one can only photos and sending messages, the pattern of another breath of can only collecting mail.
(4), when equipment determines to exit this WBSS, send the instruction indication to the management entity of protocol stack and exit WBSS; Perhaps, in equipment Inspection to not at this WBSS the time, by the bottom management entity to the asynchronous announcement of upper layer application.So far the communication between ISP and user ends
The beneficial effect that the present invention is based on the Vehicular communication system of WAVE is: because described Vehicular communication system has adopted WAVE, create wide coverage, high-quality and supported the automobile self-organized network of multimedia messages, safety, and more easily dispose, cost is also lower, more meets the angle of business model.
The above, be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, and any variation of expecting without creative work or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range that claims were limited.
Claims (3)
1. the Vehicular communication system based on WAVE, it is characterized in that: comprise unit on the sheet of installing on the first external device (ED), the second external device (ED), WAVE protocol stack, expansion interface, roadside unit and vehicle, on described the first external device (ED), roadside unit, WAVE protocol stack, expansion interface, sheet, unit is connected successively with the second external device (ED), and on described roadside unit, sheet, unit and WAVE protocol stack connect into WAVE standard overlay area.
2. the Vehicular communication system based on WAVE according to claim 1, it is characterized in that: described the first external device (ED) is connected with roadside unit by expansion interface; Described the second external device (ED) is connected with unit on sheet by expansion interface.
3. the Vehicular communication system based on WAVE according to claim 1, is characterized in that: go up unit for described and be connected with roadside unit by the WAVE protocol stack.
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| CN2013104027102A CN103442080A (en) | 2013-09-07 | 2013-09-07 | Vehicle-mounted communication system based on WAVE |
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| CN2013104027102A CN103442080A (en) | 2013-09-07 | 2013-09-07 | Vehicle-mounted communication system based on WAVE |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104066124A (en) * | 2014-02-27 | 2014-09-24 | 浙江浙大中控信息技术有限公司 | Self-adaptation control device and self-adaptation control method for transmission rate of Internet of vehicles |
| CN104158867A (en) * | 2014-08-06 | 2014-11-19 | 电子科技大学 | Information multi-hop forwarding method based on WAVE (wireless access in vehicular environments) protocol |
| CN105225484A (en) * | 2015-09-29 | 2016-01-06 | 深圳市金溢科技股份有限公司 | A kind of data processing method of Intelligent Transportation Terminal, terminal and system |
| CN107113576A (en) * | 2014-12-18 | 2017-08-29 | 株式会社电装 | Radio communication device |
| CN110249641A (en) * | 2017-01-06 | 2019-09-17 | Lg 电子株式会社 | Device and method for V2X communication |
| CN113194435A (en) * | 2015-06-25 | 2021-07-30 | 英特尔公司 | Discovery and establishment of communication groups for wireless vehicular communication |
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| CN202353824U (en) * | 2011-11-24 | 2012-07-25 | 北京握奇数据系统有限公司 | Chip and vehicle-mounted device based on WAVE (Wireless Access in Vehicle Environment) standard |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104066124A (en) * | 2014-02-27 | 2014-09-24 | 浙江浙大中控信息技术有限公司 | Self-adaptation control device and self-adaptation control method for transmission rate of Internet of vehicles |
| CN104066124B (en) * | 2014-02-27 | 2017-06-20 | 浙江浙大中控信息技术有限公司 | A kind of car networking rate adaptive transmission control device and control method |
| CN104158867A (en) * | 2014-08-06 | 2014-11-19 | 电子科技大学 | Information multi-hop forwarding method based on WAVE (wireless access in vehicular environments) protocol |
| CN104158867B (en) * | 2014-08-06 | 2017-05-17 | 电子科技大学 | Information multi-hop forwarding method based on WAVE (wireless access in vehicular environments) protocol |
| CN107113576A (en) * | 2014-12-18 | 2017-08-29 | 株式会社电装 | Radio communication device |
| CN107113576B (en) * | 2014-12-18 | 2020-12-01 | 株式会社电装 | Wireless communication device |
| CN113194435A (en) * | 2015-06-25 | 2021-07-30 | 英特尔公司 | Discovery and establishment of communication groups for wireless vehicular communication |
| CN113194435B (en) * | 2015-06-25 | 2024-04-12 | 英特尔公司 | Discovery and establishment of communication groups for wireless vehicle-mounted communication |
| CN105225484A (en) * | 2015-09-29 | 2016-01-06 | 深圳市金溢科技股份有限公司 | A kind of data processing method of Intelligent Transportation Terminal, terminal and system |
| CN110249641A (en) * | 2017-01-06 | 2019-09-17 | Lg 电子株式会社 | Device and method for V2X communication |
| CN110249641B (en) * | 2017-01-06 | 2022-04-29 | Lg 电子株式会社 | Apparatus and method for V2X communication |
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