Automatic driving vehicle ad hoc network method and system based on DDS protocol and DSRC technology

Abstract

The invention provides an automatic driving vehicle ad hoc network method and system based on a DDS protocol and a DSRC technology. Four OBU units are arranged on the front portion, the rear portion, the left portion and the right portion of an automatic driving vehicle body respectively and are responsible for DSRC wireless receiving and transmitting. Dynamic vehicles in the surrounding environment are detected through a vehicle body radar sensor; a domain controller judges the position information of surrounding vehicles sensed by the radar, and packages a DDS message to select an OBU unit in a proper direction to broadcast the vehicle in accordance with the range of the ad hoc network by means of DSRC (Dedicated Short Range Communication); meanwhile, real-time information sent by surrounding vehicles through DSRC broadcasting is received, ad hoc network topology information is dynamically established, and ad hoc network topology is published to a central controller to serve as one path of real-time input of an automatic driving decision algorithm. According to the invention, the mutual cooperation of the self-driving automobile ad hoc network is realized, the timeliness of real-time information sharing of the automobile is improved, the self-driving automobile can be perceived and predicted in advance, and the safety of automatic driving is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of automatic driving, and in particular relates to a self-driving vehicle ad hoc network method and system based on DDS protocol and DSRC technology. Background technique [0002] In today's era, self-driving technology is changing with each passing day, and self-driving vehicles will gradually become popular. With the rapid development of intelligence and networking of self-driving cars, the interconnection of workshops has become the general trend. [0003] At the same time, with the help of Data Distribution Service (Data Distribution Service for Real-Time-Systems, DDS), as a data-centric distributed real-time communication middleware, although to a certain extent, QOS characteristics or reliable protocols can be used to ensure data reliability. However, it still cannot fully solve the failure problem of communication links. [0004] Traditional autonomous driving technologies mostly rely on the fusion ...

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Problems solved by technology

[0003] At the same time, with the help of Data Distribution Service for Real-Time-Systems (DDS), as a data-centric distributed real-time communication middleware, although to a certain extent, QOS features or reliable protocols can be used to ensure data reliability. distribution, but still cannot fully solve the failure problem of the communication link

[0004] Traditional autonomous driving technologies mostly rely on the fusion of sensors and AI algorithms to form perception-decision-oriented autonomous driving, but the interconnection between vehicles is relatively small

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