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A message processing method and device

A message processing and message technology, which is applied in the field of intelligent transportation, can solve the problems of unrealistic and expensive security encryption and decryption hardware

Active Publication Date: 2022-04-05
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the high-performance secure encryption and decryption hardware is expensive. In the case of extreme traffic congestion, the speed is far beyond the current 2,000-2,500 pieces / second security hardware signature acceleration capability. It is not realistic to rely entirely on high-performance hardware to solve this problem.

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  • A message processing method and device

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Embodiment Construction

[0075] The embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0076] In order to facilitate understanding, a description of concepts related to the present application is given for reference, as follows:

[0077] 1) The vehicle-mounted terminal may be a vehicle-mounted electronic control unit (electronic control unit, ECU), etc., a vehicle-mounted computer, a vehicle-mounted cruise system, and a vehicle-mounted communication box (telematics box, T-BOX).

[0078] 2) The driving status information of the vehicle refers to the vehicle's position, head orientation, speed, acceleration, steering angle, angular velocity, angular acceleration, vehicle size, weight and other data.

[0079] 3) Vehicle to X (V2X): a key technology for future intelligent transportation systems. Among them, V represents the vehicle, and X represents any object that interacts with the vehicle, such as vehicles, people, traffic ...

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Abstract

Embodiments of the present application provide a message processing method and device, which can reduce the number of security verifications for V2X messages by vehicle-mounted terminals, improve the timeliness of security verification in message queues, and enhance the reliability of vehicle-mounted communications. The method includes: the first vehicle-mounted terminal of the main vehicle receives the first V2X message from the second vehicle-mounted terminal of the remote vehicle, and then the first vehicle-mounted terminal predicts the first driving trajectory of the remote vehicle according to the first V2X message. Further, the first vehicle-mounted terminal determines the first minimum distance between the main vehicle and the remote vehicle within the first time period from the first moment according to the first driving trajectory of the remote vehicle and the second driving trajectory of the main vehicle; When the minimum distance is less than or equal to the first threshold, the first vehicle-mounted terminal performs security verification on the first V2X message.

Description

technical field [0001] The present application relates to the field of intelligent transportation, in particular to a message processing method and device. Background technique [0002] At present, along with the improvement of economic development and people's living standards, the number of vehicles on the road is increasing day by day. Especially in economically developed urban areas, the growth of the number of vehicles is particularly obvious. [0003] In different vehicle density environments, the workload of vehicles to complete the signature verification of received messages varies greatly. In extreme congestion scenarios, a single vehicle may receive V2X from 200 to 300 surrounding vehicles in one second. Messages, the number of messages may reach more than 3,000. At this time, the vehicle's V2X system may not be able to meet such a huge data verification performance requirement, which may cause the vehicle's V2X data link system to be congested, causing the V2X ap...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/029H04W4/46H04W12/06
CPCH04W4/46H04W4/029H04W12/06
Inventor 张浩
Owner HUAWEI TECH CO LTD