The invention provides an intelligent road time synchronization information fusion method and device using a cache mechanism. The method comprises the following steps: 1) carrying out clock calibration on all sensing equipment; 2) detecting a vehicle target, recording sensing data and sensing time, and transmitting the sensing data and the sensing time; 3) counting the time delay of each sensing device by receiving the data and recording the receiving time, and solving the comprehensive cache duration T; 4) constructing a data cache space; (5) a request is sent out at the moment t, and the data pipeline can send back the data belonging to the range of [t-T, t] and store the data in the data cache space; 6) reading the information at the t-T moment, and completing the fusion processing of the multi-source heterogeneous sensing data at the t moment; and 7) if it is detected that the time delay of a certain device exceeds the set T, giving an alarm. The method can effectively solve the problem of data loss caused by data integration and network congestion in an intelligent road environment, avoids wrong information fusion caused by data receiving delay, and improves the accuracy and credibility of traffic information in the intelligent road environment.
本发明提供了一种利用缓存机制的智慧公路时间同步信息融合方法及装置,方法包括:1)对所有传感设备进行时钟校准;2)检测到车辆目标,记录感知数据和感知时刻,并传输;3)通过接收数据并记录接收时刻,统计出各传感设备的时延,求取综合缓存时长T;4)构建数据缓存空间;5)在t时刻发出请求,数据管道可将隶属[t‑T,t]范围的数据传回并存入数据缓存空间;6)读取t‑T时刻的信息,在t时刻完成对多源异构传感数据的融合处理;7)若检测到某台设备的时延超过设定T,则发出警报。本发明可有效解决智慧公路环境下因数据整合和网络堵塞引起的数据丢失情况,避免数据接收延时产生的错误信息融合,提升智慧公路环境下交通信息的精准度和可信度。
Smart road time synchronization information fusion method and device using cache mechanism
利用缓存机制的智慧公路时间同步信息融合方法及装置
2023-07-11
Patent
Elektronische Ressource
Chinesisch
IPC: | H04J Multiplex-Verkehr , MULTIPLEX COMMUNICATION / G04R RADIO-CONTROLLED TIME-PIECES , FUNKGESTEUERTE UHREN / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION , Übertragung digitaler Information, z.B. Telegrafieverkehr |
FUTURE TECHNOLOGY – Road condition classification using information fusion
Springer Verlag | 2016
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Europäisches Patentamt | 2020
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