Vehicle crowd sensing data collection method based on block chain

The invention provides a vehicle crowd sensing data collection method based on a block chain, and the method comprises the steps: initializing a target vehicle; executing a sensing task through the target vehicle, generating observation data, signing the observation data, and broadcasting the signed observation data; executing a truth value discovery algorithm through the roadside unit, and judging the correctness of the broadcast message; wherein the roadside unit is used for receiving broadcast messages of all vehicles in a local area and maintaining a local block chain and a main block chain; and uploading the message which is judged to be correct to the local block chain and the main block chain. Through the method provided by the invention, the vehicle crowd sensing data can be collected, and the authenticity of the message is ensured. 本发明提出一种基于区块链的车辆群智感知数据收集方法，包括，初始化目标车辆；通过目标车辆执行感知任务，生成观测数据，并将观测数据签名后广播；通过路边单元执行真值发现算法，对广播的消息正确性进行判定；其中路边单元用于接收本区域内所有车辆的广播消息以及维护本地区块链和主区块链；将判断正确的消息上传本地区块链和主区块链。通过本发明提出的方法，可以收