CN220673943U - Internet of vehicles system and local area network information interaction device based on vehicle-mounted V2V module - Google Patents

Abstract

The utility model discloses a vehicle networking system and a local area network information interaction device based on a vehicle-mounted V2V module, wherein the vehicle networking system comprises: the vehicle-mounted local area network module is used for constructing a local area network by using a TCP protocol and a star topology structure and taking each unit vehicle as a center so as to realize V2V communication interaction among vehicles in the local area network; and the vehicle control module is used for being connected with the vehicle control system through the GPIO interface so as to realize the control of the vehicle. When the system is used, the problems that a V2V system based on DSRC technology in the prior art is difficult to cope with complex traffic environment, a large amount of data are received and information are transmitted, the network system and the information are safe, and the resource consumption of the vehicle networking element is solved.

Description

Internet of vehicles system and local area network information interaction device based on vehicle-mounted V2V module

Technical Field

The utility model relates to the technical field of communication and Internet of vehicles, in particular to an Internet of vehicles system and a local area network information interaction device based on a vehicle-mounted V2V module.

Background

The internet of vehicles has gradually become an important direction of development in the automotive industry. At present, the development of the internet of vehicles has been advanced to a certain extent, the application range of the internet of vehicles is gradually expanded, and the internet of vehicles is developed from the initial vehicle tracking and vehicle-mounted entertainment functions to the aspects of vehicle automatic driving, traffic management, intelligent parking and the like. A series of standards and specifications of the Internet of vehicles are established by government and industry organizations, and support and guarantee are provided for the development of the Internet of vehicles technology.

With the gradual maturity of big data and artificial intelligence technology, navigation technology, sensor technology and security and privacy protection technology, the popularization of the internet of vehicles is provided with technical guarantee. The car of the internet of vehicles is used as a carrier of important elements of the internet of vehicles, a real-time and efficient communication network system and a sensing system are required to be carried, real-time sharing of vehicle information in the network is realized, efficient collaborative operation of the motorcades in the network is realized, and finally unmanned operation can be realized.

However, with the rapid development and gradual commercialization and popularization of the internet of vehicles system, the complex traffic environment, a large amount of data receiving and information transmission, the security problems of the network system and the information and the resource consumption problems of the internet of vehicles elements are required. However, existing V2V systems based on DSRC techniques have been difficult to address.

Therefore, the utility model provides an information transmission mode for optimizing the internet of vehicles technology, and an internet of vehicles system for establishing a more real-time and efficient vehicle information interaction system and a local area network information interaction device based on a vehicle-mounted V2V module are the problems to be solved.

Disclosure of Invention

Aiming at the technical problems, the utility model aims to overcome the problems that a V2V system based on DSRC technology in the prior art is difficult to cope with complex traffic environment, a large amount of data are received and information are transmitted, the safety problem of a network system and information and the resource consumption problem of a vehicle networking element are solved, so that an information transmission mode of the vehicle networking technology is optimized, a vehicle networking system of a vehicle information interaction system and a local area network information interaction device based on a vehicle V2V module are established more in real time and high efficiency.

In order to achieve the above object, the present utility model provides an internet of vehicles system including:

the vehicle-mounted local area network module is used for constructing a local area network by using a TCP protocol and a star topology structure and taking each unit vehicle as a center so as to realize V2V communication interaction among vehicles in the local area network;

and the vehicle control module is used for being connected with the vehicle control system through the GPIO interface so as to realize the control of the vehicle.

Preferably, the internet of vehicles system further comprises:

and the central controller is used for receiving the data sent by the vehicle-mounted local area network module, forwarding the data to the vehicle control module, and forwarding the response of the vehicle control module to the vehicle-mounted local area network module at the same time so as to realize the data transmission synchronization of the vehicle-mounted local area network module and the vehicle control module.

Preferably, the internet of vehicles system further comprises:

and the safety module is used for connecting various sensors of the vehicle to monitor and acquire the state information of the vehicle, and sending the acquired state information to the back-end server for processing.

Preferably, the internet of vehicles system further comprises:

and the information encryption module is respectively connected with SPI interfaces of the vehicle local area network module and the vehicle control module so as to encrypt and protect information data in the two modules.

Preferably, the internet of vehicles system comprises:

the GPS module is used for receiving and interpreting the GPS signals to acquire the positioning information of the current vehicle;

and the display module is used for receiving the positioning information data of the vehicle and/or the information data sent by the vehicle-mounted local area network module and displaying the received information data through the display.

Preferably, the in-vehicle lan module includes: a number of ESP8266 modules, wherein,

the ESP8266 module on the current vehicle is in AP mode, all ESP8266 modules on other vehicles are in STA mode, and are connected to the ESP8266 modules in AP mode, respectively, to enable the current vehicle to establish communication with other vehicles within the local area network.

The utility model also provides a local area network information interaction device based on the vehicle-mounted V2V module, which comprises a vehicle networking system and further comprises: an insulating shell, an assembly seat and an external antenna; the car networking system is fixed on the inner bottom surface of the insulating shell through the assembly seat, an external antenna with an insulating sleeve is vertically wrapped outside the car networking system, and at least part of the external antenna extends out of the insulating shell.

Preferably, a plurality of first shock absorbing seats are arranged on the outer bottom surface of the insulating shell at intervals.

Preferably, a plurality of heat radiators are embedded at the bottom of the insulating shell, and air outlets of the plurality of heat radiators face to the outside of the insulating shell.

Preferably, a plurality of second shock absorbing seats are arranged at intervals at the bottom of the assembly seat, and the plurality of second shock absorbing seats are respectively fixed on the inner bottom surface of the insulating shell.

According to the technical scheme, the vehicle networking system and the local area network information interaction device based on the vehicle-mounted V2V module are relatively simple in adding, deleting and maintaining equipment in the system, easy to manage and suitable for actual traffic conditions when the vehicle networking system and the local area network information interaction device based on the vehicle-mounted V2V module are used. In addition, as each device is connected to a central node, the topology structure is easier to control and protect data safety, the coverage range can reach thousands of meters, the perception range of the DSRC vehicle networking technology is improved, data is transmitted in a two-way mode between vehicles, the fault tolerance rate of signal interruption is improved, vehicles in a local area network have sufficient time to perceive other vehicles, and the scheme provided by the application optimizes the information transmission mode of the vehicle networking technology and establishes a vehicle information interaction system with more real time and high efficiency.

Additional features and advantages of the utility model will be set forth in the detailed description which follows; and none of the utility models are related to the same or are capable of being practiced in the prior art.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the description serve to explain, without limitation, the utility model. In the drawings:

FIG. 1 is a block diagram of an Internet of vehicles system in accordance with a preferred embodiment of the present utility model;

FIG. 2 is a block diagram illustrating a second configuration of the Internet of vehicles system according to a preferred embodiment of the present utility model;

fig. 3 is a schematic diagram of a star topology of a vehicle lan module according to a preferred embodiment of the present utility model;

fig. 4 is a schematic structural diagram of a local area network information interaction device based on a vehicle V2V module according to a preferred embodiment of the present utility model;

fig. 5 is a schematic view of a usage principle of the internet of vehicles system on a road according to a preferred embodiment of the present utility model.

Description of the reference numerals

1 insulating housing 2 assembling seat

3 external antenna 4 radiator

5 first shock-absorbing seat 6 second shock-absorbing seat

7 vehicle LAN module 8 vehicle control module

9 central controller 10 safety module

11 information encryption module 12GPS module

13 display module

Detailed Description

The following describes specific embodiments of the present utility model in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the utility model, are not intended to limit the utility model.

As shown in fig. 1, the present utility model provides a car networking system, which is characterized in that the car networking system includes:

the vehicle-mounted local area network module 7 is used for constructing a local area network by using a TCP protocol and a star topology structure and taking each unit vehicle as a center so as to realize V2V communication interaction among vehicles in the local area network;

and the vehicle control module 8 is used for being connected with a vehicle control system through a GPIO interface so as to realize control of the vehicle.

In the above scheme, the system adopts a NVIDIAJetson Nano motherboard, the interface standard is SPI and a general GPIO interface, an ARM Cortex-A series processor is adopted, so that the system stably works in a low-power consumption and high-performance mode, the requirements of the application of the Internet of vehicles are met, a FreeRTOS real-time operating system is carried, the real-time information processing and transmitting capacity is enhanced, and then the vehicle local area network module 7, the vehicle control module 8 and other modules are assembled on the NVIDIAJetson Nano motherboard to work, wherein the vehicle local area network module 7 adopts a star topology structure to establish a local area network, and the adding, deleting and maintaining equipment in the system is relatively simple and easy to manage, and accords with the actual traffic condition. In addition, as each device is connected to a central node, the topology structure is easier to control and protect data safety, the coverage range can reach thousands of meters, the perception range of the DSRC vehicle networking technology is improved, data is transmitted in a two-way mode between vehicles, the fault tolerance rate of signal interruption is improved, vehicles in a local area network have sufficient time to perceive other vehicles, and the scheme provided by the application optimizes the information transmission mode of the vehicle networking technology and establishes a vehicle information interaction system with more real time and high efficiency.

As shown in fig. 2, for the vehicle control module 8, the vehicle control module 8 in the main board is connected with a vehicle control system through a GPIO interface, controls the engine, braking, steering and other systems of the vehicle, and realizes the control and adjustment of the vehicle through a control actuator.

In a preferred embodiment of the present utility model, the internet of vehicles system further comprises:

the central controller 9 is configured to receive the data sent by the vehicle lan module 7, and then forward the data to the vehicle control module 8, and simultaneously forward the response of the vehicle control module 8 to the vehicle lan module 7, so as to achieve synchronization of data transmission between the vehicle lan module 7 and the vehicle control module 8.

In the above scheme, two-way communication is realized with the central controller 9 through the WebSocket interface, the data in the vehicle-mounted local area network module 7 and the vehicle control module 8 are synchronized, and some vehicle control data such as speed, acceleration and fault conditions are transmitted to the central controller 9, and then transmitted to the vehicle-mounted local area network module 7 through the central controller 9, so that information interaction with vehicles in the local area network is realized.

The central controller 9 is not a CPU or computer hardware but a software design model for decoupling the interaction between the various components of the system, by defining interfaces and message formats in the Web service, to enable interaction and data transmission between the different components. The central controller 9 serves as a bridge for data transmission and synchronization between the control module and the communication module.

In a preferred embodiment of the present utility model, as shown in fig. 2, the internet of vehicles system further comprises:

a security module 10 for connecting various sensors of the vehicle to monitor and acquire state information of the vehicle, and transmitting the acquired state information to a back-end server for processing;

in the above-mentioned scheme, the security module 10 in the main board includes an information security module and a vehicle security module, the vehicle security module is connected to the OBD system through the CAN bus, monitors the data indexes of the systems and sensors in the vehicle in real time, and stores the information in the control module. The information security module is equivalent to a network firewall, and prevents the input of information of unknown origin and the invasion of various viruses and hackers.

In a preferred embodiment of the present utility model, as shown in fig. 2, the internet of vehicles system further comprises:

the information encryption module 11 is respectively connected with SPI interfaces of the vehicle local area network module 7 and the vehicle control module 8 so as to encrypt and protect information data in the two modules.

In a preferred embodiment of the present utility model, as shown in fig. 2, the internet of vehicles system comprises: the GPS module 12 is used for receiving and interpreting GPS signals to acquire the positioning information of the current vehicle; and a display module 13 for receiving the positioning information data of the vehicle and/or the information data sent by the vehicle-mounted local area network module 7 sent by the GPS module 12, and displaying the received information data through a display.

In the above scheme, the GPS module 12, the vehicle-mounted lan module 7 and the display module 13 together form a communication module, and the communication module in the motherboard adopts GPS positioning, and accesses a GPS satellite network through an antenna, so as to obtain positioning information of the vehicle. In order to improve signal transmission quality and avoid signal interference and distortion, the display module is connected with the main board through an HDMI interface to display the vehicle states of the vehicle and the vehicles in the network and the interaction information between the vehicles, and networking the vehicle-mounted display screen through an HTTP protocol, so that real-time information can be displayed on the display screen. The local on-board lan module 7 includes several ESP8266 modules, including an AP mode and an STA mode. Wherein the AP mode receives the navigation data and the data delivered by the mediator CPU. And simultaneously, the SPI interface is connected with the information encryption module, so that the data is encrypted. Then data is transmitted to an ESP8266 module of the STA mode through a TCP protocol, and finally the data is transmitted to an ESP8266 module of an AP mode of other vehicles in the local area network, and information of the other vehicles is transmitted to a communication module of the vehicle in the same way, so that bidirectional communication among the vehicles is realized;

the in-vehicle lan module 7 includes: a number of ESP8266 modules 701, wherein,

the ESP8266 module 701 on the current vehicle is in an AP mode, all the ESP8266 modules 701 on the other vehicles are in STA mode, and are connected to the ESP8266 modules 701 of the AP mode, respectively, to enable the current vehicle to establish communication with the other vehicles within the local area network.

In the above scheme, to build the vehicle-mounted local area network, a plurality of ESP8266 modules are required to be deployed in the vehicle, each module has an AP mode and an STA mode as shown in fig. 3, each module is responsible for communicating with a nearby vehicle, the ESP8266 module can be used for building the vehicle-mounted local area network, and the ESP8266 module can be used for quickly building a low-power-consumption and high-efficiency vehicle-mounted local area network, so that data exchange and communication between vehicles are realized; and a TCP/IP protocol stack is supported, so that efficient data transmission can be realized, a star topology is adopted, one ESP8266 module is used as an AP, and other ESP8266 modules are connected to the AP, and the specific operation steps are as follows:

step 1, firstly, one of the ESP8266 modules needs to be set to be in an AP mode, and the setting of parameters such as an SSID and a password of the AP can be achieved by using AT instructions or programming of the ESP8266 module.

Step 2, the other ESP8266 modules are set to STA mode and connected to the ESP8266 module of AP mode, which can be implemented using AT instructions or programming as well,

in step 3, after each ESP8266 module is connected to the ESP8266 module in the AP mode, data communication is possible, and communication may be performed using protocols such as TCP or UDP.

By the arrangement, the vehicle-mounted local area network module 7 can be used for constructing the vehicle-mounted local area network.

As shown in fig. 4, the present utility model further provides a local area network information interaction device based on a vehicle V2V module, where the device includes a vehicle networking system, and further includes: an insulating shell 1, an assembly seat 2 and an external antenna 3; the car networking system is fixed on the inner bottom surface of the insulating shell 1 through the assembly seat 2, the car networking system is connected with an external antenna 3 with an insulating sleeve vertically wrapped outside, and the external antenna 3 at least partially stretches out of the insulating shell 1.

In a preferred embodiment of the present utility model, the outer bottom surface of the insulating housing 1 is provided with a plurality of first shock-absorbing seats 5 at intervals.

In a preferred embodiment of the present utility model, the bottom of the insulating housing 1 is embedded with a plurality of heat sinks 4, and air outlets of the plurality of heat sinks 4 face to the outside of the insulating housing 1.

In a preferred embodiment of the present utility model, a plurality of second shock absorbing seats 6 are disposed at intervals at the bottom of the assembly seat 2, and the plurality of second shock absorbing seats 6 are respectively fixed at the inner bottom surface of the insulating housing 1.

In the above scheme, the problem of wind resistance and stability of an external device when a vehicle runs is considered, a lux triangle is added with a round plane base to serve as a basic appearance, an insulating shell 1 is constructed, the problem of tip conduction and discharge is considered, the insulating shell 1 is made of insulating materials, the influence of vehicle jolt on the device is reduced, double shock absorption measures are adopted, namely a first shock absorption seat 5 and a second shock absorption seat 6 are adopted, a vehicle network system is fixed on an assembly seat 2 by utilizing a plurality of fixing rivets, the vehicle network system operates in an optimal state, signals are received by an external antenna 3, and the internal temperature of the system is jointly stabilized by a system radiator and an external radiator 4, so that the stable operation of the system is ensured.

For the working principle of the internet of vehicles system, the operation principle is illustrated first, as shown in fig. 5, the motorcade is a motorcade driving on a single-way road, the movement direction is shown in the figure, each vehicle is loaded with the internet of vehicles system provided by the utility model, after the power supply is activated, the main board starts to operate, each vehicle mutually sends signals STA and AP modes to bidirectionally transmit, and a local area network is built by taking the vehicle as the center, for example, the oval range is the local area network range of the B vehicle and the D vehicle. Taking the B car as an example, firstly, the B car carries out two-way communication with the A car and the C car, and after networking is carried out by taking the B car as a center, the position relation between the B car and the A car and the C car is obtained. If the A car and the C car have a request, the B car is also subjected to information transmission through the communication module of the A car and the C car, after the B car receives the information, the safety module is used for uniformly checking and filtering the received information, the information is processed on the vehicle control module, the processed information of the vehicle control module is transmitted to the communication module through the central controller, finally, the communication module transmits the information to the communication module of the A car or the C car through the processing of the information encryption module, the whole process of information bidirectional transmission is completed, and the coordinated operation of the vehicles in the local area network is realized.

In summary, when the vehicle networking system and the local area network information interaction device based on the vehicle-mounted V2V module provided by the utility model are used, the problems that the V2V system based on the DSRC technology in the prior art is difficult to cope with complex traffic environment, a large amount of data are received and information are transmitted, the network system and the information are safe and the resource consumption of vehicle networking elements is high are overcome.

The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present utility model within the scope of the technical concept of the present utility model, and all the simple modifications belong to the protection scope of the present utility model.

In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.

Moreover, any combination of the various embodiments of the utility model can be made without departing from the spirit of the utility model, which should also be considered as disclosed herein.

Claims (10)

1. An internet of vehicles system, the internet of vehicles system comprising:

the vehicle-mounted local area network module (7) is used for constructing a local area network by using a TCP protocol and a star topology structure and taking each unit vehicle as a center so as to realize V2V communication interaction among vehicles in the local area network;

and the vehicle control module (8) is connected with the vehicle control system through the GPIO interface so as to realize the control of the vehicle.

2. The internet of vehicles system of claim 1, further comprising:

and the central controller (9) is used for receiving the data sent by the vehicle-mounted local area network module (7), forwarding the data to the vehicle control module (8) and forwarding the response of the vehicle control module (8) to the vehicle-mounted local area network module (7) at the same time so as to realize the data transmission synchronization of the vehicle-mounted local area network module (7) and the vehicle control module (8).

3. The internet of vehicles system of claim 1, further comprising:

and the safety module (10) is used for connecting various sensors of the vehicle to monitor and acquire the state information of the vehicle, and transmitting the acquired state information to the back-end server for processing.

4. The internet of vehicles system of claim 1, further comprising:

and the information encryption module (11) is respectively connected with SPI interfaces of the vehicle local area network module (7) and the vehicle control module (8) so as to encrypt and protect information data in the two modules.

5. The internet of vehicles system of claim 1, wherein the internet of vehicles system comprises:

a GPS module (12) for receiving and interpreting GPS signals to obtain the positioning information of the current vehicle;

and the display module (13) is used for receiving the positioning information data of the vehicle and/or the information data sent by the vehicle-mounted local area network module (7) sent by the GPS module (12) and displaying the received information data through a display.

6. The internet of vehicles system according to claim 1, wherein the in-vehicle local area network module (7) comprises: a plurality of ESP8266 modules (701), wherein,

the ESP8266 module (701) on the current vehicle is in an AP mode, all the ESP8266 modules (701) on other vehicles are in STA modes, and the ESP8266 modules (701) in the AP mode are respectively connected to realize that the current vehicle establishes communication with other vehicles in the local area network.

7. A local area network information interaction device based on a vehicle-mounted V2V module, the device comprising the internet of vehicles system according to any one of claims 1-6, wherein the local area network information interaction device further comprises: an insulating shell (1), an assembly seat (2) and an external antenna (3); the vehicle networking system is fixed on the inner bottom surface of the insulating shell (1) through the assembly seat (2), the vehicle networking system is connected with an external antenna (3) with an insulating sleeve wrapped on the vertical outside, and the external antenna (3) at least partially stretches out of the insulating shell (1).

8. The local area network information interaction device based on the vehicle-mounted V2V module according to claim 7, wherein a plurality of first shock absorbing seats (5) are arranged on the outer bottom surface of the insulating shell (1) at intervals.

9. The local area network information interaction device based on the vehicle-mounted V2V module according to claim 8, wherein a plurality of radiators (4) are embedded at the bottom of the insulating shell (1), and air outlets of the plurality of radiators (4) face to the outside of the insulating shell (1).

10. The local area network information interaction device based on the vehicle-mounted V2V module according to claim 7, wherein a plurality of second shock absorbing seats (6) are arranged at intervals at the bottom of the assembly seat (2), and the plurality of second shock absorbing seats (6) are respectively fixed on the inner bottom surface of the insulating shell (1).