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Traffic control method, network side device and terminal

  • US 9,984,570 B2
  • Filed: 12/30/2014
  • Issued: 05/29/2018
  • Est. Priority Date: 12/31/2013
  • Status: Active Grant
First Claim
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1. A traffic control method for sending traffic control signals to vehicles which are to pass through an intersection, comprising steps of:

  • receiving vehicle data of all vehicles on roads forming the intersection;

    matching position information of the vehicles in the vehicle data to road-network information, to establish a real-time matching relationship between the roads and the vehicles;

    generating traffic circulation information about the intersection in accordance with the vehicle data and the real-time matching relationship, and generating traffic control signals corresponding to the vehicles in respective directions in accordance with the traffic circulation information; and

    sending the traffic control signals to the corresponding vehicles;

    wherein the step of matching the position information of the vehicles in the vehicle data to the road-network information, to establish the real-time matching relationship between the roads and the vehicles comprises;

    calculating an arrival time length to be spent by each vehicle to arrive at the intersection in accordance with the position information of the vehicle in the vehicle data and the road-network information; and

    dividing the vehicles on each road into vehicles in a first time region and vehicles in a second time region in accordance with the arrival time lengths; and

    wherein the step of dividing the vehicles on each road into the vehicles in the first time region and the vehicles in the second time region in accordance with the arrival time lengths comprises;

    after it is determined that the traffic control signals need to be sent, determining the vehicles in the first time region in each direction in accordance with a predetermined first time length, a predetermined first reference time length and the arrival time lengths, and determining the vehicles in the second time region in each direction in accordance with current road-condition information, the first time length and the arrival time lengths;

    wherein sending the traffic control signals to the corresponding vehicles further comprises;

    sending traffic control signals to the vehicles in the first time regions in the respective directions, and sending traffic control signals to the vehicles in the second time regions in the respective directions; and

    wherein with respect to one direction, the traffic control signal sent to the vehicles in the first time regions in the one direction and a direction opposite to the one direction is different from the traffic control signal sent to the vehicles in the first time regions in the other directions, and the traffic control signal sent to the vehicles in the second time regions in the one direction and a direction opposite to the one direction is different from the traffic control signal sent to the vehicles in the second time regions in the other directions.

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