CN102622872B - A kind of multi-mode wireless communications vehicle road cooperation data interaction system - Google Patents

Abstract

The invention discloses a multi-mode wireless communication vehicle-road coordination data interaction system belonging to the field of intelligent transportation. It consists of drive test equipment, central equipment, vehicle-mounted equipment and handheld terminal equipment, and runs under the Windows operating system environment. The beneficial effects of the present invention are as follows: 1) Data interaction among traffic participants is realized. 2) It meets the diverse needs of traffic participants for traffic communication. 3) Integrate multiple information interaction methods in various vehicle-road coordination systems such as vehicle-vehicle/vehicle-road communication. 4) Communication control effectively guarantees the reliability and firmness of the vehicle-road cooperative communication network, and effectively adapts to problems such as high-speed topology transformation and communication occlusion. 5) The method including AES encryption and CRC data verification ensures the security and reliability of data, eliminates external attacks and detects data loss in wireless transmission.

Description

A multi-mode wireless communication vehicle-road coordination data interaction system

technical field

The present invention relates to the field of intelligent transportation, in particular to a multi-mode wireless communication vehicle-road coordination data interaction system, which provides motor vehicle drivers, pedestrians and traffic managers and travelers in urban road traffic that can be used to improve traffic safety and traffic Efficient data interaction platform.

Background technique

With the continuous increase of traffic accidents and traffic congestion, a large number of traffic control and traffic guidance facilities have been applied to the actual road traffic system. The data basis for its normal operation is various types of traffic sensors, but the traffic data collected by these sensors are often only Compared with the whole city, it is only partial traffic data from floating cars, some intersections and a small number of road sections. These data are often incomplete for traffic control and traffic guidance, resulting in traffic control and traffic guidance are often not effective in real time . On the other hand, vehicles only rely on information broadcast by traffic radio stations and variable information boards on the roadside to obtain traffic information. The delay of these information is often large, and it is difficult to provide drivers with overall, intuitive and real-time traffic information. Cause the driver's driving operation reaction to lag; at the same time, it is also difficult for the driver to make judgments and emergency responses to traffic events that occur in a short time and within a short distance.

Contents of the invention

The present invention discloses a multi-mode wireless communication vehicle-road coordination data interaction system aimed at the above-mentioned defects. The system runs under the Windows operating system environment; Control, etc. provide a brand-new solution idea: the vehicle-road collaborative data interaction system uses advanced wireless communication and new-generation Internet technologies to comprehensively implement vehicle-vehicle and vehicle-road dynamic real-time information interaction, and collect dynamic traffic information in all time and space. Carry out vehicle active safety control and road collaborative management on the basis of integration, fully realize the effective coordination of people-vehicle-road, ensure traffic safety, improve traffic efficiency, and form a safe, efficient and environmentally friendly road traffic system;

A multi-mode wireless communication vehicle-road coordination data interaction system can use advanced wireless communication technologies such as wireless local area communication networks, mobile communication networks, and dedicated communication networks to realize communication between vehicles, vehicles and roads through communication control and network management. The real-time and reliable information interaction between side equipment, between pedestrians and roadside equipment, and between the management center and other traffic travelers enables traffic managers to obtain global, intuitive and real-time traffic information - for traffic control and traffic Guidance provides accurate, reliable and complete traffic data, which is conducive to making correct traffic decisions. On the other hand, the vehicle-road collaborative data interaction platform based on multi-mode wireless communication can improve the traffic efficiency and traffic safety of traffic travelers; real-time and reliable traffic information can enable traffic travelers, especially motor vehicle drivers, to obtain timely The overall operating status of surrounding vehicles, road channelization information, and traffic accident information on adjacent road sections provide reliable guarantee for safe travel; more accurate and real-time traffic information can provide traffic travelers with more effective guidance information and service information, and provide The reasonable decision-making of traffic travelers provides sufficient data support.

In order to solve the defects in the autonomous safety protection of vehicles and the cross-section collection of traffic information in the prior art: the vehicle cannot carry out coordinated safety protection according to the operating conditions of surrounding vehicles, but only relies on the sensors carried by the vehicle itself and the safety awareness of the driver and response for autonomous safety protection; the traffic control and guidance system cannot obtain overall traffic information, but can only rely on incomplete traffic information in local areas to implement traffic control strategies and issue guidance information; the present invention provides a multi-mode The wireless communication vehicle-road coordination data interaction system, with the help of advanced multi-mode wireless communication technology, realizes real-time, reliable and large-capacity data interaction among traffic participants including vehicles, roadside equipment, pedestrians and centers, so as to further improve urban Provide data support for road traffic efficiency and traffic safety conditions.

A multi-mode wireless communication vehicle-road coordination data interaction system is composed of a drive test device, a central device, a vehicle-mounted device and a handheld terminal device; the devices in the system all run a Windows operating system.

The structure of the drive test equipment is as follows: the integrated radio frequency drive unit is respectively connected to the data transmission module, the communication guarantee module and the communication control module, and the data transmission module is respectively connected to the integrated positioning drive unit, the communication guarantee module and the communication control module; the data transmission module, the communication guarantee module and the communication control module constitute the communication control and network management unit. The communication control and network management unit, the integrated radio frequency drive unit and the integrated positioning drive unit constitute the vehicle-road collaborative data interaction platform. The vehicle-road collaborative data interaction platform runs on the Windows of the control machine. On the operating system; the integrated radio frequency drive unit is connected to the radio frequency unit through the universal serial bus interface, the integrated positioning drive unit is connected to the local positioning unit through the universal serial bus interface, and the data transmission module is connected to the local application unit through the RJ-45 interface, or connected to the local application unit Units run on the same controller;

The center equipment, vehicle equipment and handheld terminal equipment have the same structure as the drive test equipment.

The radio frequency unit of the drive test equipment, the radio frequency unit of the central equipment, the radio frequency unit of the vehicle equipment and the radio frequency unit of the handheld terminal equipment all send signals to the surrounding radio frequency units, and receive signals sent by the surrounding radio frequency units;

The radio frequency unit of the drive test equipment supports communication of wireless local area network, communication of mobile communication network and communication of special communication network, and supports IEEE802.11p standard, IEEE802.11n standard, 3GCDMA20001xEv-Do standard and radio frequency identification;

The radio frequency unit of the central equipment supports the communication of the mobile communication network, and supports the 3GCDMA20001xEv-Do standard;

The radio frequency unit of the vehicle-mounted device supports communication of wireless local area network, communication of mobile communication network and communication of special communication network, and supports IEEE802.11p standard, IEEE802.11n standard, 3GCDMA20001xEv-Do standard and radio frequency identification;

The radio frequency unit of the handheld terminal device supports the communication of the wireless local area network and the communication of the mobile communication network, and supports the IEEE802.11n standard and the 3GCDMA20001xEv-Do standard.

The operating frequency of the IEEE802.11p standard is 5.9GHz, and the maximum transmission power is 33dBm; the operation frequency of the IEEE802.11n standard is 2.4GHz, and the maximum transmission power is 20dBm; the operating frequency of the 3GCDMA20001xEv-Do standard is 1.9 GHz and 2.1GHz, the maximum transmission power is 23dBm; the working frequency of RFID is 5.8GHz, the working mode is active or passive, and the transmission power is less than 300mW;

The local positioning unit obtains the location information and time information of the drive test equipment, central equipment, vehicle-mounted equipment or handheld terminal equipment. The local positioning unit is composed of a SiRFStarIII chipset plus a built-in active ceramic antenna, and the operating frequency is 1.5GHz. The shortest information acquisition cycle is 100ms.

The local application unit performs real-time information interaction with the vehicle-road coordination data interaction platform, and the vehicle-road coordination data interaction platform transmits the information obtained via the radio frequency unit and the information obtained by the local positioning unit to the local application unit; The information and the information that needs to be sent to the peripheral radio frequency unit are sent to the vehicle-road coordination data interaction platform.

The integrated radio frequency drive unit supports three wireless communication modes: wireless local area communication network mode, mobile communication network mode and dedicated communication network mode; the integrated radio frequency drive unit provides wireless local area communication network, mobile communication network , dedicated communication network equipment and drivers for network operations;

The wireless local area communication network uses the IEEE802.11a/b/g/n/p standard, and the mobile communication network is a 3G mobile communication network including CDMA2000, WCDMA and TD-SCDMA and a 2G mobile communication network including GSM and CDMA. Communications network;

The integrated positioning drive unit provides the drivers of the Beidou satellite navigation system and the global satellite positioning system under the Windows operating system;

The data transmission module realizes the data transmission between the local application unit and the multi-mode wireless communication vehicle-road coordination data interaction platform;

The communication control module and the communication guarantee module optimize the access time and the link quality of information exchange between the vehicle-road coordination entities.

The control machine is an industrial computer, a notebook, a PDA or a smart phone.

When the radio frequency unit sends data to the peripheral radio frequency unit, the AES algorithm is used to encrypt the data. When the radio frequency unit receives the data from the peripheral radio frequency unit, the AES algorithm is used to decrypt the data. After receiving the data, the CRC32 algorithm is used to encrypt the data. Authentication to ensure the integrity of data during transmission.

The beneficial effects of the present invention are:

1) Realize the data interaction between traffic participants. From the perspective of improving traffic efficiency, in the traditional traffic system, traffic managers obtain traffic data of various sections of the traffic system through sensor detection, and it is difficult to obtain comprehensive and continuous traffic data. The traffic control and guidance strategies made are also difficult to be completely accurate. Through data interaction based on vehicle-road coordination, each traffic participant is a source of traffic information, which can provide traffic managers with continuous and real-time traffic information, thereby laying the foundation for traffic participants to make accurate and timely traffic control and guidance. For traffic travelers, in the traditional traffic system, they can only get traffic information from radio, TV or roadside variable information boards, which are often very limited and poor in real-time , The traffic system based on vehicle-road coordination can greatly enrich the traffic information that traffic travelers can obtain, and provide the possibility for personalized information customization, so as to provide a more accurate guidance and information platform for personal travel. On the other hand, in the traditional traffic system, from the perspective of safety, in the traditional traffic system, the vehicle can only rely on the driver's safety awareness and reaction to ensure driving safety, but in the present invention, the vehicle can obtain real-time Get the running information of the surrounding vehicles, and based on this information, provide warnings and active safety protection for the surrounding dangerous conditions.

2) It meets the diverse needs of traffic participants for traffic communication. Many applications such as traffic safety and traffic efficiency of the vehicle-road collaborative data interaction system have extremely diverse requirements for wireless communication, and it is difficult to have a communication mode that can well meet all the needs; The system must also be compatible with existing communication equipment to the greatest extent to improve equipment utilization. Therefore, the use of multi-mode wireless communication networks as the link between entities in the vehicle-road coordination system satisfies the needs of traffic participants in the traffic system for information types. and the diverse needs of communication quality.

3) Integrates multiple information interaction methods in various vehicle-road collaborative systems such as vehicle-vehicle/vehicle-road communication, changes the situation of one application-a set of communication equipment, and realizes the participants in the vehicle-road collaborative data interaction system -Vehicles, roadside equipment, pedestrians and the center transmit data through a unified data interaction platform, which facilitates the development of vehicle-road collaborative system applications.

4) Communication control effectively guarantees the reliability and firmness of the vehicle-road cooperative communication network, and effectively adapts to problems such as high-speed topology transformation and communication occlusion.

5) The method including AES encryption and CRC data verification ensures the security and reliability of data, eliminates external attacks and detects data loss in wireless transmission.

Description of drawings

Shown in Fig. 1 is the functional structural diagram of the data interaction platform of the present invention;

Figure 2 is a schematic diagram of the deployment of the data interaction platform of the present invention;

Detailed ways

The specific implementation manner will be described in detail below with reference to FIG. 1 to FIG. 2 .

A multi-mode wireless communication vehicle-road coordination data interaction system is composed of a drive test device, a central device, a vehicle-mounted device and a handheld terminal device;

As shown in Figure 1 and Figure 2, the structure of the drive test equipment is as follows: the integrated radio frequency drive unit is respectively connected to the data transmission module, communication guarantee module and communication control module, and the data transmission module is respectively connected to the integrated positioning drive unit, communication guarantee module and communication control module module; the data transmission module, the communication guarantee module and the communication control module constitute the communication control and network management unit, the communication control and network management unit, the integrated radio frequency drive unit and the integrated positioning drive unit constitute the vehicle-road collaborative data interaction platform; the integrated radio frequency drive The unit is connected to the radio frequency unit through the universal serial bus interface, and the integrated positioning drive unit is connected to the local positioning unit through the universal serial bus interface;

The data transmission module is connected to the local application unit through the RJ-45 interface, or runs on the same control computer as the local application unit;

When the data transmission module and the local application unit run on the same control machine, the configuration of the control machine must meet the configuration requirements of the vehicle-road collaborative data interaction platform; Data interaction, data interaction follows the local communication application protocol, and the Socket connection method is UDP.

When the data transmission module and the local application unit are applied on two control machines respectively, the control machine of the local application unit is not restricted, and the control machine of the vehicle-road collaborative data interaction platform needs to meet the configuration requirements; the vehicle-road collaborative data interaction platform and application program The data interaction is carried out through Socket communication, and the data interaction follows the local communication application protocol, and the Socket connection method is UDP.

The center equipment, vehicle equipment and handheld terminal equipment have the same structure as the drive test equipment.

The radio frequency unit of the drive test equipment, the radio frequency unit of the central equipment, the radio frequency unit of the vehicle equipment and the radio frequency unit of the handheld terminal equipment all send signals to the surrounding radio frequency units and receive the signals sent by the surrounding radio frequency units;

The radio frequency unit of the drive test equipment supports wireless local area network communication, mobile communication network communication and dedicated communication network communication, and supports IEEE802.11p standard, IEEE802.11n standard, 3GCDMA20001xEv-Do standard and radio frequency identification (RFID);

The radio frequency unit of the central equipment supports the communication of the mobile communication network, and supports the 3GCDMA20001xEv-Do standard;

The radio frequency unit of the vehicle equipment supports the communication of the wireless local area network, the communication of the mobile communication network and the communication of the special communication network, and supports the IEEE802.11p standard, IEEE802.11n standard, 3GCDMA20001xEv-Do standard and radio frequency identification;

The radio frequency unit of the handheld terminal device supports the communication of the wireless local area network and the communication of the mobile communication network, and supports the IEEE802.11n standard and the 3GCDMA20001xEv-Do standard.

The vehicle-road coordination data interaction system establishes a wireless ad hoc network and a structured network through a radio frequency unit, and accesses the surrounding wireless ad hoc network and a structured network.

The operating frequency of the IEEE802.11p standard is 5.9GHz, and the maximum transmission power is 33dBm; the operating frequency of the IEEE802.11n standard is 2.4GHz, and the maximum transmission power is 20dBm; the operating frequency of the 3GCDMA20001xEv-Do standard is 1.9GHz ( Uplink) and 2.1GHz (downlink), the maximum transmission power is 23dBm; the working frequency of radio frequency identification is 5.8GHz, the working mode is active or passive, and the transmission power is less than 300mW;

The local positioning unit obtains the position information and time information of the drive test equipment, central equipment, vehicle equipment or handheld terminal equipment, including latitude and longitude, speed, acceleration, direction angle, altitude, etc. The local positioning unit is composed of SiRFStarIII chipset and built-in Composed of active ceramic antennas, the working frequency is 1.5GHz, and the shortest information acquisition period is 100ms.

The local application unit performs real-time information interaction with the vehicle-road coordination data interaction platform, and the vehicle-road coordination data interaction platform transmits the information obtained through the radio frequency unit and the information obtained by the local positioning unit to the local application unit; the local application unit collects the information ( The information collected by the sensor) and the information that needs to be sent to the peripheral radio frequency unit are sent to the vehicle-road collaborative data interaction platform.

The integrated radio frequency drive unit supports three wireless communication modes: wireless local area communication network mode, mobile communication network mode and dedicated communication network mode; the integrated radio frequency drive unit provides wireless local area communication network, mobile communication network, private communication network mode under the Windows operating system Drivers for communication network equipment and network operations;

The wireless local area communication network uses the IEEE802.11a/b/g/n/p standard, and the mobile communication network is a 3G mobile communication network including CDMA2000, WCDMA and TD-SCDMA and a 2G mobile communication network including GSM and CDMA. Communications network;

The integrated positioning drive unit provides the drivers of the Beidou satellite navigation system and the global satellite positioning system under the Windows operating system;

The data transmission module realizes the data transmission between the local application unit and the multi-mode wireless communication vehicle-road coordination data interaction platform;

The data transmission module is the realization part of the data interaction between the four kinds of equipment (drive test equipment, central equipment, vehicle equipment and handheld terminal equipment), and also the realization part of the data interaction platform and application data interaction; the data transmission module is based on the TCP/IP protocol family and The WAVE protocol family communicates with peripheral units. The data transmission module has three transmission modes: periodic data transmission, request-response-based data transmission, and event-driven data transmission. The functions of sending and receiving data, data framing, timeout and retransmission control, receiving data queue control, local address management, transmission protocol management and wireless transmission power control are applied.

Four types of equipment (drive test equipment, central equipment, vehicle-mounted equipment and handheld terminal equipment) perform data interaction through the data interaction platform; in the process of data interaction, the communication control module and communication guarantee module optimize the communication between vehicle-road collaborative entities. Access time and link quality for information exchange.

The control machine is an industrial computer, notebook, PDA or smart phone.

In a preferred embodiment, the hardware of the control machine is composed as follows: the microprocessor adopts onboard MProcessor or MProcessor1G, north bridge: Intel82855GM/GME (GMCH), south bridge: IntelFW82801DB-M (ICH4-M); the display controller adopts the built-in graphics controller of the motherboard, which has a 3D super-pipeline architecture that can perform parallel data processing and precise pixel insertion. Full 3D hardware acceleration, VGA display resolution up to 1600×120085Hz; system memory is equipped with onboard 256MBDDR200/266/333MHzDDRSDRAM, and a 200PinDDRSO-DIMM system memory expansion slot is provided, and the maximum capacity of the mainboard memory can be expanded to 2GB; local disk 80GB space; 6 USB2.0 high-speed ports, supporting 480Mb/s transfer rate; a built-in 10/100Mb/s Ethernet controller (RealtekTL8139DL) on the motherboard, supporting network boot (PXE), wake-on-lane (WOL) functions; I/O function: 2 standard RS-232 serial ports (COM1~COM2). The physical composition of the data interaction platform of the handheld terminal entity is: the microprocessor adopts Qualcomm snapdragon MSM82551433MHz, the working frequency band is GSM850/900/1800/1900MHz, CDMA2000800/1900MHz, the resolution of the main screen is 800×480 pixels, and the size of the main screen is 4.3 inches. Support Mini-USB interface, 512MB RAM, storage space 16GB.

When the radio frequency unit sends data to the peripheral radio frequency unit, the AES algorithm is used to encrypt the data. When the radio frequency unit receives the data from the peripheral radio frequency unit, the AES algorithm is used to decrypt the data. After receiving the data, the CRC32 algorithm is used for data verification. To ensure the integrity of the data transmission process.

Detailed process of the present invention is as follows:

After the communication control and network management unit is started, it automatically connects to the local ad hoc communication network, and connects to the structured network according to the application needs. For different devices (drive test equipment, central equipment, vehicle-mounted equipment and handheld terminal equipment), the working modes of the vehicle-road collaborative data interaction platform after startup are different. The following will explain the working modes of these four types of equipment:

Vehicle-mounted equipment: After the vehicle-road coordination data interaction platform of the vehicle-mounted equipment is started, it will actively connect to the surrounding self-organizing network and actively receive information from surrounding entities; at the same time, it will broadcast local basic information to the surrounding radio frequency units. The local basic information mainly includes The vehicle equipment type, data sending time, vehicle equipment location, vehicle equipment application type, and broadcast information are sent periodically. And according to the obtained information, a local three-dimensional network topology diagram is formed, and the longitude, latitude and altitude information of the surrounding equipment are displayed. And according to the needs of local applications, unicast and multicast information to the destination device. Based on a dedicated communication network, the on-board equipment completes the work of vehicle authentication and vehicle charging. After the vehicle-road collaborative data interaction platform of the vehicle equipment is started, it will always maintain a connection relationship with the local surrounding self-organizing network until there are no other vehicle equipment or roadside equipment in the surrounding area. Once it is detected that there are other equipment in the surrounding area Self-organizing network, on-board equipment will automatically connect.

Drive test equipment: After the vehicle-road collaborative data interaction platform of the drive test equipment is started, it actively connects to the surrounding self-organizing network; and generates a structured network for the surrounding handheld terminals to access; it receives information from various surrounding devices, and After being sorted out, it is sent to the peripheral equipment, and at the same time, the locally aggregated data is processed and sent to the central equipment through the wired backbone network or 3GCDMA2000 mobile communication network, and at the same time, the information of the central equipment is released to other underlying equipment, such as other drive test equipment, Vehicle-mounted equipment and handheld terminal equipment; it will periodically broadcast traffic channelization and traffic guidance information to other entities within its coverage area. The broadcast information also includes local device type, data transmission time, local device location, and local device application type . The roadside equipment forms an ad hoc network and a structured network based on a wireless local area network centered on itself.

Handheld terminal device: After the vehicle-road collaborative data interaction platform of the handheld device is started, it can connect to the roadside device to build a structured network through a wireless local area network under the condition of roadside structural network coverage, and obtain local traffic guidance information; The central equipment can be connected through the mobile communication network to obtain customized global traffic information. Information interaction is realized through periodic information transmission, and the data information also includes local device type, data transmission time, local device location, and local device application type. The link between the handheld terminal device and the roadside device and the link between the handheld terminal device and the central device are initiated, maintained and disconnected by the handheld terminal device itself.

Central equipment: After the vehicle-road collaborative data interaction platform of the central equipment is started, it can obtain the traffic information aggregated and processed by the roadside through the wired backbone network and mobile communication network, and can also obtain the traffic information obtained by the roadside equipment through the mobile communication network At the same time, the information uploaded by the vehicle-mounted equipment and the handheld terminal equipment can be directly obtained through the mobile communication network. On the other hand, the inducement information of the central equipment can be released directly through the mobile communication network or after being transmitted to the drive test equipment through the wired backbone network. The data information includes the local equipment type, data sending time, local equipment location, and local equipment application type. The connection network of the central device remains online at all times.

The invention realizes real-time, high-efficiency and large-capacity data interaction between traffic participants through multi-mode wireless communication. Advanced wireless communication can ensure the data communication requirements of traffic applications, and the use of multi-mode wireless communication can satisfy the diversified traffic communication needs to the maximum extent.

The invention enables multi-mode wireless communication to operate efficiently through advanced communication control, and can deal with high-speed transformation of communication network topology and problems of network access, capacity, on-off speed and the like in real time.

The present invention enables real-time protection of the safety and effectiveness of multi-mode wireless communication through complete communication guarantee.

Claims (8)

1. a vehicle road cooperation data interaction system, is characterized in that, it is made up of roadside device, central apparatus, mobile unit and hand-held terminal device;

The structure of roadside device is as follows: integrated RF driver element connects the data transmission module respectively, communication support module and communication control module, and data transmission module connects integrated positioning driver element, communication support module and communication control module respectively; Data transmission module, communication support module and communication control module constitute Control on Communication and network management unit, Control on Communication and network management unit, integrated RF driver element and integrated positioning driver element constitute vehicle road cooperation data interaction platform, and vehicle road cooperation data interaction platform operates in the Windows operating system of controller; Integrated RF driver element connects radio frequency unit by USB (universal serial bus), integrated positioning driver element connects local positioning unit by USB (universal serial bus), data transmission module connects local applying unit by RJ-45 interface, or operates on same controller with local applying unit;

Central apparatus, mobile unit and hand-held terminal device and roadside device have identical structure;

Vehicle road cooperation data interaction system sets up wireless self-organization network and structural network by radio frequency unit, and accesses periphery wireless self-organization network and structural network.

2. a kind of vehicle road cooperation data interaction system according to claim 1, it is characterized in that, the radio frequency unit of the radio frequency unit of described roadside device, the radio frequency unit of central apparatus, mobile unit and all peritropous radio frequency unit of the radio frequency unit of hand-held terminal device send signal, and the signal that the radio frequency unit receiving periphery sends;

The radio frequency unit of described roadside device supports the communication of WLAN, the communication of mobile communications network communicates with dedicated communications network, and supports IEEE802.11p standard, IEEE802.11n standard, 3GCDMA20001xEv-Do standard and radio-frequency (RF) identification;

The radio frequency unit of described central apparatus supports the communication of mobile communications network, and supports 3GCDMA20001xEv-Do standard;

The radio frequency unit of described mobile unit supports the communication of WLAN, the communication of mobile communications network communicates with dedicated communications network, and supports IEEE802.11p standard, IEEE802.11n standard, 3GCDMA20001xEv-Do standard and radio-frequency (RF) identification;

The radio frequency unit of described hand-held terminal device supports the communication of WLAN and communicating of mobile communications network, and supports IEEE802.11n standard and 3GCDMA20001xEv-Do standard.

3. a kind of vehicle road cooperation data interaction system according to claim 2, is characterized in that, the operating frequency of described IEEE802.11p standard is 5.9GHz, and transmitting power is 33dBm to the maximum; The operating frequency of described IEEE802.11n standard is 2.4GHz, and transmitting power is 20dBm to the maximum; The operating frequency of described 3GCDMA20001xEv-Do standard is respectively 1.9GHz and 2.1GHz, and maximum transmission power is 23dBm; The operating frequency of radio-frequency (RF) identification is 5.8GHz, and working method is active or passive type, and transmitting power is less than 300mW.

4. a kind of vehicle road cooperation data interaction system according to claim 1, it is characterized in that, described local positioning unit obtains positional information and the temporal information of roadside device, central apparatus, mobile unit or hand-held terminal device, by SiRFStarIII chipset, local positioning unit adds that built-in active ceramic antenna is formed, operating frequency is 1.5GHz, and the shortest acquisition of information cycle is 100ms.

5. a kind of vehicle road cooperation data interaction system according to claim 1, it is characterized in that, described local applying unit and vehicle road cooperation data interaction platform carry out real-time information interaction, and vehicle road cooperation data interaction platform is to the information of local applying unit transmission via radio frequency unit acquisition and the information of local positioning unit acquisition; Local applying unit is by the information collected and need to send to the information of the transmission of periphery radio frequency unit to vehicle road cooperation data interaction platform.

6. a kind of vehicle road cooperation data interaction system according to claim 1, is characterized in that, described integrated RF driver element supports three kinds of wireless communications modes: Wireless Local Area Communication Networks network pattern, mobile communications network pattern and dedicated communications network pattern; Integrated RF driver element provides the driving of Wireless Local Area Communication Networks network, mobile communications network, dedicated communications network equipment and network operation under Windows operating system;

Wireless Local Area Communication Networks network uses IEEE802.11a/b/g/n/p standard, and mobile communications network is contain CDMA2000, WCDMA and TD-SCDMA at interior 3G mobile communications network with contain GSM and CDMA at interior 2G mobile communications network;

Described integrated positioning driver element provides the driving of Beidou satellite navigation system and GPS (Global Position System) under Windows operating system;

Described data transmission module realizes the transfer of data of local applying unit and vehicle road cooperation data interaction platform;

Turn-on time between described communication control module and communication support module optimization bus or train route coordinated entity and the link-quality of information interaction.

7. a kind of vehicle road cooperation data interaction system according to claim 1, is characterized in that, described controller is industrial computer, notebook, PDA or smart mobile phone.

8. a kind of vehicle road cooperation data interaction system according to claim 1, it is characterized in that, when described radio frequency unit sends data to periphery radio frequency unit, aes algorithm is adopted to carry out data encryption, when described radio frequency unit receives the data from periphery radio frequency unit, adopt aes algorithm to decrypt data, after receiving the data, CRC32 algorithm is adopted to carry out data verification, to guarantee the integrality in data transmission procedure.