Abstract: A traffic flow dynamic guiding method based on a region block includes: building communication connection with a cloud server by a vehicle-mounted terminal; performing data acquisition by the vehicle-mounted terminal, and uploading acquired data to the cloud server; receiving feedback of the cloud server by the vehicle-mounted terminal; which is including an accident occurring probability of a current automobile in a set range of a current road section; sending the probability to a driver in a human-computer interaction mode; receiving communication addresses, sent by the cloud server, of the surrounding vehicle-mounted terminals in the set range by the current vehicle-mounted terminal in order to build a connection relationship with the surrounding vehicle-mounted terminals; performing running and updating after the region block relationship is built; performing traffic flow guiding on traffic accident information and performing traffic flow guiding on official vehicles by using the region block relationship

Abstract: The present invention discloses an intelligent traffic safety pre-warning method, a cloud server, onboard-terminals and a system. The method comprises: a step (101): the onboard-terminal establishes a communication connection with the cloud server; a step (102): the onboard-terminal acquires data, and uploads data calculated based on the acquired data to the cloud server; a step (103): the onboard-terminal receives feedbacks from the cloud server, the feedback comprising the probability that the current vehicle has an accident within a set range of the current road segment; and a step (104): the onboard-terminal receives the probability that the current vehicle has an accident within the set range of the current road segment, and then transmits the feedback to the driver by human-computer interaction.