The invention provides a vehicle driving data acquisition method and system, and the method comprises the steps that a vehicle central processor sends a data acquisition instruction and a synchronous clock signal to each vehicle body sensor, and the data acquisition instruction is a control signal for opening or closing the sensor; driving data and environment data collected by the vehicle body sensor are converted into digital signals, timestamps are added to the collected driving data and environment data, and the uncompressed digital signals are transmitted to a vehicle central processor through an optical fiber; and the vehicle central processor synthesizes the driving data with the environment data acquired by the vehicle body sensor, and performs data synchronization on the acquired driving data and the environment data according to the timestamps so as to obtain the driving state of the vehicle. According to the scheme, the transmission rate of vehicle acquisition data can be improved, data delay is reduced, electromagnetic signal interference can be avoided, and the wire size is reduced.
本发明提供一种车辆行驶数据采集方法及系统,该方法包括:车辆中心处理器向各车身传感器发送数据采集指令和同步时钟信号,所述数据采集指令为传感器开启或关闭的控制信号;将车身传感器采集的行车数据和环境数据转换为数字信号,并为采集的行车数据和环境数据添加时间戳,将未被压缩的数字信号通过光纤传输至车辆中心处理器;车辆中心处理器对车身传感器采集的行车数据和环境数据进行合成,并根据时间戳对采集的行车数据和环境数据进行数据同步,以获知车辆行驶状态。通过该方案可以提高车辆采集数据的传递速率,减少数据延迟,并能避免电磁信号干扰,减小线材体积。
Vehicle driving data acquisition method and system
一种车辆行驶数据采集方法及系统
2021-10-01
Patent
Elektronische Ressource
Chinesisch
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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