Emergency vehicle priority passing control method based on intelligent network connection environment

Abstract

The invention discloses an emergency vehicle priority passing control method based on an intelligent network connection environment, relates to the technical field of urban intelligent traffic, solves the technical problem that an existing emergency vehicle cannot pass smoothly preferentially, and the method comprises the following steps: step 1, an emergency vehicle running at a set speed sends a priority passing signal, the road side unit receives the priority request information; 2, a roadside sensing unit collects a lane vehicle distribution state and uploads the lane vehicle distribution state to an edge computing unit; 3, the edge computing unit calculates an emergency lane inspiration point and lane changing coordinates of social vehicles according to the position and speed of the emergency vehicle and the distribution pattern of the vehicles on the lane and sends the emergency lane inspiration point and the lane changing coordinates to a near-end server; 4, the near-end server issues the information to each vehicle, and the social vehicle starts to be emptied according to the planned position when the emergency vehicle runs to the trigger point; the defect that no emergency lane is arranged on an urban road is overcome, and the running speed and rescue quality of emergency vehicles are improved.

Description

technical field [0001] The present invention relates to the technical field of urban intelligent transportation, and more specifically relates to the technical field of a control method for priority traffic of emergency vehicles based on an intelligent network connection environment. Background technique [0002] Dedicated bus lane management technology: With the increase of car ownership, the reduction of land resources, and the increasingly prominent problems of traffic congestion, the most powerful way to solve the problem of traffic congestion is to vigorously promote public transportation. In order to make buses more attractive and improve the punctuality rate of buses, the traffic management department has set up lanes with independent right of way for buses, prohibiting other vehicles from entering, and ensuring the priority of buses. The main forms of dedicated bus lanes are: : (1) all-day type; (2) time-segment type. [0003] Dynamic bus-only lane management techno...

AI Technical Summary

Problems solved by technology

[0005] For the above-mentioned management technology: the special-purpose bus lane is to give the bus absolute road priority, and divide a lane for the normal operation of the bus, but the bus operation is a regular schedule, and there will be no buses on the dedicated lane for a certain period of time. Therefore, dedicated bus lanes will improve the operating efficiency of buses, but will lead to waste of road resources, reduce the overall social benefits, and are not conducive to solving the problem of urban traffic congestion during peak hours; Optimizing on the basis of bus lanes, considering the waste of road resources, when there are no buses on the bus lane, social vehicles can drive into the lane, and when the bus is driving on the bus lane, social vehicles need to leave the bus lane ; Intermittent bus lanes are theoretically feasible, but this form requires the cooperation of traffic participants in the whole society. There are capture devices at intersections that can capture and supervise social vehicles occupying bus lanes, but on long roads Without the supervision of law enforcement facilities, there will be social vehicles occupying the bus lane and not giving way to the bus. Therefore, on the road section, it mainly depends on the driver's moral constraints. This constraint is highly uncertain and will affect the overall operating efficiency; Second, the intermittent bus-only lane function is enabled, and social vehicles change lanes to other lanes to achieve the purpose of leaving the bus lane. During the departure process, because the vehicle-to-vehicle communication cannot be communicated, the vehicles driving on the side lane cannot accurately understand the lane change The intention of the vehicle, so the vehicle will not be able to change lanes for a long time when changing lanes, which will affect the operating efficiency of the bus. Lane-changing failure phenomenon; thirdly, social vehicles need the cooperation of vehicles on the left lane to change lanes to the left, especially in the case of high saturated flow, there is a risk of traffic accidents when vehicles change lanes. In the application, there will be cases where the vehicles in the clearing area are not cleared after the bus arrives; finally, the management objects of both the dedicated bus lane and the intermittent bus lane are all model-oriented management technologies. There is a big difference in the priority of vehicles, so the management mechanism for emergency lanes is quite different from that of bus lanes; and the variable lanes in cities divide the fixed intersection lanes according to the changing characteristics of the traffic system distribution. The flow direction division is set in the form that the lane direction changes with the traffic flow. The variable lane management mechanism is to solve the traffic congestion problem on the road, so the variable lane management belongs to the traffic flow management technology, but the emergency lane management technology is for Improve the running speed and rescue quality of emergency vehicles, so emergency lane management technology belongs to vehicle type management. In summary, the management objects and principles of the three are different. Although some variable lane management technologies are applicable to emergency lane management, variable Lane management technology cannot fully meet the priority needs of emergency vehicles

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