Rail traffic signal product vehicle positioning calibration system based on virtual beacon

Abstract

The invention discloses a rail traffic signal product vehicle positioning calibration system based on a virtual beacon. The rail traffic signal product vehicle positioning calibration system based onthe virtual beacon comprises rail side subject matters, a rail map data storage and updating module, a positioning sensor and a train positioning module, wherein the rail side subject matters are arranged beside train running rails, each subject matter has the characteristic of being different from the other matters; the rail map data storage and updating module is used for storing rail map data,the rail map data comprise the characteristics of the subject matters beside the rails and is synchronously updated when the characteristics of the subject matters beside the rails change; the positioning sensor is provided with at least two positioning sensor bodies, and at least one of the positioning sensor bodies collects characteristic information of subject matters on two sides of the railsand vehicle positioning is realized in combination with rail map data; and the train positioning module is used for fusing the vehicle positioning information of the at least two positioning sensor bodies and approving final vehicle positioning information by voting. By adopting the technical scheme that the position of the vehicle-mounted equipment is calculated in real time through multi-sensorsynchronous acquisition and sensing fusion, the positioning resolution and the positioning accuracy of the vehicle-mounted equipment are improved, and the parking accuracy is conveniently improved.

Description

technical field [0001] The invention relates to rail traffic technology, in particular to a rail traffic signal system. Background technique [0002] The on-board equipment of rail transit signal products performs initial positioning or positioning calibration through passive beacons, active beacons, or loop lines to obtain / correct its own position. [0003] Whether it is a beacon or a ring line, it needs to be laid along the track. For example, a beacon needs to be laid every few hundred meters, and the defects brought about are as follows: [0004] 1. The cost of complete sets of equipment increases; [0005] 2. The requirements for track infrastructure construction are relatively high, and there are strict requirements for the installation of beacons during beacon positioning, otherwise it will cause errors in positioning, or even fail to locate; [0006] 3. The resolution of positioning depends on the interval of beacon arrangement; [0007] 4. Deployment of beacons o...

AI Technical Summary

Problems solved by technology

[0004] 1. The cost of complete sets of equipment increases;

[0005] 2. The requirements for track infrastructure construction are relatively high, and there are strict requirements for the installation of beacons during beacon positioning, otherwise it will cause errors in positioning, or even fail to locate;

[0007] 4. Deployment of beacons or ring line related equipment on the trackside may affect the city appearance;

[0008] 5. Increased the difficulty of follow-up maintenance