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Positioning system of overhauling trolley for urban rail transit

A technology of urban rail transit and positioning system, which is applied in the field of urban rail transit maintenance trolley positioning system, which can solve the problems of closed interface, complex system structure, and inability to be used directly, and achieve effective functions, wide application, and convenient technology integration and compatibility Effect

Inactive Publication Date: 2013-01-30
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In view of the fact that the on-board positioning function of existing urban rail transit trains mainly serves for train blockage control, its system structure is complex, and the interface is not open to other applications, so it cannot be directly used
Many documents have cited the technical method of calculating the travel distance and determining the vehicle position through the pulse output of the photoelectric encoder installed on the running wheel shaft, but in the application environment of the track maintenance trolley, special consideration and solution is required. Position determination when walking forward and backward flexibly at will, and positioning error compensation when the trolley may slip and idling occurs

Method used

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  • Positioning system of overhauling trolley for urban rail transit
  • Positioning system of overhauling trolley for urban rail transit
  • Positioning system of overhauling trolley for urban rail transit

Examples

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Embodiment

[0022] Such as figure 1 and figure 2 The maintenance trolley positioning system for urban rail transit shown is based on the maintenance trolley and the track, including a photoelectric encoder 1, a beacon 6, photoelectric proximity sensors 4, 5 and a processor. The photoelectric encoder 1 can be installed in the middle of the rotating wheel shaft 3 of the maintenance trolley. The inner diameter of the rotating part of the photoelectric encoder needs to be matched with the rotating wheel shaft and fastened. The fixed part of the photoelectric encoder is fastened to the chassis of the trolley through the mounting bracket 2. The encoder is connected to the processor through a wire. The beacons 6 are mounted on the track ties at equal intervals. There are two photoelectric proximity sensors: the forward photoelectric proximity sensor 4 and the rear photoelectric proximity sensor 5, which are respectively installed at the front and rear of the central axis parallel to the chass...

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PUM

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Abstract

The invention relates to a positioning system of an overhauling trolley for urban rail transit. The positioning system is based on the overhauling trolley and rails, and comprises a photoelectric encoder, a beacon, two photoelectric proximity sensors and a processor. The photoelectric encoder is arranged on an axle of a rotating wheel of the overhauling trolley and is connected with the processor, the beacon is fixed between sleepers of the rails, and the two photoelectric proximity sensors are respectively mounted at a front position and a rear position of a chassis of the overhauling trolley and are respectively connected with the processor. Compared with the prior art, the positioning system has the advantages of simple structure, effective functions, adaptability, flexibility, wide application range and the like.

Description

technical field [0001] The invention relates to the field of rail transit maintenance trolleys, in particular to a positioning system for urban rail transit maintenance trolleys. Background technique [0002] During the late-night outage of urban rail transit trains, it is necessary to serve the maintenance and inspection of equipment along the line and have a vehicle positioning function. The requirements for it are: the system structure is simple, easy to use and low cost; the positioning accuracy is reasonable (within ± 2 / 1000 meters); use the positioning resources of existing rail transit as much as possible; do not interfere with the existing communication signal system; and do not dock with the positioning system of the existing automatic train control (ATC). In view of the fact that the on-board positioning function of existing urban rail transit trains mainly serves for train blockage control, its system structure is complex, and the interface is not open to other ap...

Claims

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Application Information

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IPC IPC(8): B61L25/00G01C23/00
Inventor 周民立
Owner SHANGHAI UNIV OF ENG SCI
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