System and method capable of improving accuracy of large-scale guard duty command and dispatch

Abstract

The invention discloses a system and a method capable of improving accuracy of large-scale guard duty command and dispatch, and belongs to the technical field of intelligent transportation application. Before guard duty is executed, a leading vehicle provided with a vehicle position detecting unit is used for running for once according to an actual route. Position information confirmed in a real-time mode by a vehicle position detecting unit global position system (GPS) module and a mileage counting module is used as reference positions. During the process that the guard duty is executed, vehicle current position information confirmed by GPS data of the vehicle position detecting unit is directly used as vehicle actual position information. When GPS signals are shielded and position data can not be output under the conditions that a vehicle runs in a tunnel, under an overpass and the like, the system confirms a vehicle current position through data of the mileage counting module. When a difference between the time corresponding to a reference position in an executing time table corresponding to the current position of the vehicle and the current time exceeds a setting threshold value, the system automatically prompts a driver to adjust the speed of the vehicle, and accomplishment of the guard duty is ensured in the mode which is accurate to the second.

Description

technical field [0001] The invention relates to the technical field of intelligent traffic command and control, in particular to a system and method capable of improving the command and dispatch accuracy of large-scale guard tasks. Background technique [0002] With the rapid development of society, when major cities undertake large-scale international conferences and large-scale events, they often encounter the situation that multiple security convoys depart from different stations and arrive at the same venue at the same time. How to ensure that each guard convoy can arrive at the destination within the specified time and at the specified time interval, and minimize the impact on normal traffic is the goal pursued by the command and dispatch personnel. [0003] The existing patent document CN 102129772A discloses a GIS-based dynamic positioning dispatching command method and system, including vehicle-mounted GPS, by presetting the parameters required for dynamic positionin...

AI Technical Summary

Problems solved by technology

Since there is a certain deviation between the longitude and latitude of the vehicle's driving position on the actual road and the longitude and latitude processed by the road matching algorithm, the data processed by the road matching algorithm is used as the basis for judging whether the vehicle is driving normally, which will cause the actual position data of the vehicle to There is always a certain deviation from the benchmark data, which cannot ensure that the leading vehicle completes the task accurately to the second;

[0007] (3) In the above-mentioned technical scheme, the vehicle positioning information is obtained through the vehicle-mounted GPS, but the signal of the vehicle-mounted GPS is easily blocked by buildings, trees, bridges, tunnels, etc. In the case of determining the current position of the vehicle, the above-mentioned technical solution cannot ensure that the guard task reaches the destination within seconds

Images