Locomotive positioning system and its positioning method based on track circuit and dgps

Abstract

The present invention provides a locomotive positioning system based on track circuit and DGPS. The system includes ground equipment and on-board equipment. The ground equipment includes DGPS base station, tracking and positioning server, communication server, interlocking state collection server, 3G base station and several tracking Positioning client, vehicle-mounted equipment includes vehicle-mounted positioning host, 3G data transmission unit, DGPS module, display, sensor group, train detector and several electronic couplers. The invention also provides a positioning method of the locomotive positioning system based on the track circuit and DGPS. The invention can improve the accuracy and precision of locomotive position detection, and provides a powerful and accurate data source for further optimizing dispatching strategies.

Description

technical field [0001] The invention relates to the technical field of locomotive positioning, in particular to a locomotive positioning system and a positioning method based on track circuits and DGPS. Background technique [0002] At present, the railway track on the industrial site is electrically composed of multiple sections, each of which is called a track section, and each section of the track section has a track circuit detection device for detecting whether the locomotive is pressed on the section , when the locomotive is running on the railway, the matching computer interlocking system can detect which section the locomotive is in in real time through the track circuit detection device, and in this way can track and locate the locomotive in a certain section. However, a section is generally tens to hundreds of meters, and there is a large error in locomotive positioning in this way. [0003] In view of this situation, the common track circuit calculations on the m...

AI Technical Summary

Problems solved by technology

[0004] For the positioning method of track circuit reckoning, there is no need to increase too much hardware equipment cost, but the requirements for the computer interlocking system are too high, there must be no track section faults or false alarms, and when some special track sections appear , the system will produce misjudgment, and the effect is not ideal in the actual use process

[0005] For the positioning method using GPS, the position of the locomotive can be easily located, but because the GPS equipment is not convenient to install on the wagon, it is impossible to locate the position of the wagon attached to the locomotive and the number of wagons attached to the locomotive

[0006] For the positioning method of adding a point transponder, it is necessary to install a card reader on each locomotive head, and install a point transponder at a specific position on the ground. When the locomotive passes the point transponder, the position of the locomotive can be detected. This method has the advantage of accurate position detection, but it also has the disadvantage of being inconvenient to install on the wagons, and cannot locate the position of the wagons attached and the number of wagons attached to the locomotive.

At the same time, considering the cost of equipment and installation and maintenance, it is impossible to install continuous or excessive point transponders, so the position of the locomotive obtained by this method is not continuous, and it is impossible to track and locate the position of the locomotive throughout the process, which has great limitations.

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