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Information communication method and system in in-vehicle network environment

An information communication method and vehicle network technology, applied in the field of information communication methods and systems in the vehicle network environment, can solve the problems of unsatisfactory, difficult IP address management, inability to realize vehicle communication and information management, etc., and achieve efficient information communication, The effect of improving travel safety and improving transportation efficiency

Active Publication Date: 2016-05-25
NEUSOFT CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the intelligent transportation system, vehicles have the characteristics of dynamic entry and exit. If the communication technology based on IP address is used, it will bring great difficulties to the management of vehicle IP address. If the communication technology based on central routing or central management node is adopted Technology, only when the vehicle enters the range covered by the central routing or central management node, the communication can be realized, and the real-time communication and information management of the vehicle cannot be realized
[0004] However, in the cooperative intelligent transportation system, the communication data mainly involves vehicle safety driving data, road condition information and safety alarm information, etc. These data face different transmission objects and have different requirements for transmission performance during transmission. , the communication technology in the above prior art cannot effectively complete the information communication between vehicles, and cannot meet the requirements of the cooperative intelligent transportation system for improving transportation efficiency and travel safety

Method used

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  • Information communication method and system in in-vehicle network environment
  • Information communication method and system in in-vehicle network environment
  • Information communication method and system in in-vehicle network environment

Examples

Experimental program
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Embodiment 1

[0051] In this embodiment, the source node encapsulates the traffic resource data into a message message, the type of the traffic resource data is the notification data type, and the transmission mode corresponding to the notification data type is broadcast mode, and the message message is sent to target node.

[0052] In this embodiment, the traffic resource data type is the notification data type, that is, if the traffic resource data is the notification data type, the message message is sent in a broadcast manner. The notification data type is usually the traffic resource data related to the node itself, and it is usually used to notify the surrounding nodes. This kind of data only needs to be notified to the neighboring nodes. Therefore, this kind of data is transmitted by broadcasting. During transmission, the message is limited to one hop, and the destination node receiving the data does not forward the message.

[0053] In this embodiment, the traffic resource data of ...

Embodiment 2

[0055] In this embodiment, the type of the traffic resource data is a request data type, the message message carries the MAC address of the destination node, and the transmission mode corresponding to the request data type is a unicast mode. According to the unicast mode, the The MAC address sends a message to the destination node.

[0056] In this embodiment, the traffic resource data is of the request data type, that is, if the traffic resource data is of the request data type, the message message is sent in a unicast manner.

[0057] Traffic resource data of the InformRequest data type, such as service subscription messages, important notification information, and security authentication information. This type of message needs to be safely delivered to a specific destination node, and a response operation is required after receiving the data. This type of data It needs to be reliably delivered to the destination node, so this kind of data is transmitted in unicast mode.

...

Embodiment 3

[0062] In this embodiment, the type of the traffic resource data is the type of reported data, the information of the destination area is carried in the message message, the transmission mode corresponding to the type of reported data is a multicast mode, and the data is transmitted to the destination area according to the multicast mode. The destination node in sends the message message.

[0063] In this embodiment, the traffic resource data is of the reporting data type, that is, if the traffic resource data is of the reporting data type, the message message is sent in a multicast manner, that is, one source node sends to multiple destination nodes.

[0064] The traffic resource data of the reported data type is, for example, data related to dangerous road conditions and abnormal traffic conditions. This type of data usually needs to be notified to the destination node in a certain area, which is called the destination area in the present invention. More specifically, for exa...

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Abstract

The embodiment of this invention discloses an information communication method and system in in-vehicle network environment. The method comprises the following steps: a source node packages traffic resource data as an information message and sends the information message to a target node according to a transmission mode corresponding to the type of the traffic resource data. The method uses the information message as a communication unit so that different transmission modes can be selected according to the type of the data resource; thus, different requirements on transmission object and transmission performance required by different data types can be met; the information among the nodes is convenient to communicate and to be managed, and the communication among the nodes is finished effectively.

Description

technical field [0001] The invention relates to the technical field of vehicle network communication, in particular to an information communication method and system in a vehicle network environment. Background technique [0002] In recent years, the number of urban vehicles has grown rapidly, and higher requirements have been put forward for vehicle driving safety and traffic conditions. Concepts such as intelligent transportation and smart cities have been proposed and continuously developed. Among them, the cooperative intelligent transportation system (Cooperative Intelligent Transport Systems) is an ITS (Intelligent Transport Systems) system that includes vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) communication to realize information interaction. By making full use of transportation resources and mutual communication, Reduce traffic congestion and safety accidents, improve the efficiency of the transportation system and effectively improve ITS services...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/04H04W4/12H04W4/00
CPCH04W4/046H04W4/12H04W4/70
Inventor 柳扬张骞杨明张珠华张翼
Owner NEUSOFT CORP
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