Absolute position mark method for rail line

A technology of absolute position and marking method, applied in the direction of measuring device, point coordinate measurement, railway car body parts, etc., can solve the problem that the positioning accuracy cannot meet the actual requirements of the signal blind area, and achieve the effect of improving accuracy

Inactive Publication Date: 2006-01-04
BEIJING JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

The use of satellite positioning in industrial and mining enterprises or on the production line also has the problem that the

Method used

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  • Absolute position mark method for rail line
  • Absolute position mark method for rail line
  • Absolute position mark method for rail line

Examples

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Embodiment Construction

[0014] One of the implementations is further described with a track circuit with 32 undetermined positions. Such as figure 2 As shown, the tag reader (2) reads the binary tags (1) sequentially along the track line (5) in accordance with the moving direction shown in the figure, and the tags read at different positions to be determined are put into the shift memory (3), The shift memory is shifted according to the queuing method of first-in-first-out. The bit that enters first constitutes the high bit of the binary address, and the bit that enters later constitutes the low bit of the binary address. The number of bits of the shift memory is log 2 32 = 5 bit. In the figure, the position of the binary marker aligned with the marker reader is the first undetermined position. There are 32 undetermined positions along the moving direction of the illustrated reader on the track line, and 32 binary marker...

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Abstract

The absolute position marking method for rail line is to set two-valued mark and to code every or every several pieces of sleeper in track line, every or every several electrodes in magnetic suspension line or every sites in production line in special mode. One mark reader is used in reading the two-valued marks successively along the line and the marks read in different positions constitute different binary numbers. The binary numbers are used as the addresses, and when some coordinate information is checked in the database established in advance, the absolute position and relevant information may be determined in the rail line or production line.

Description

technical field [0001] The invention relates to a track line absolute position marking method, which is used for determining the absolute position of any point along the track line or production line. Background technique [0002] In railway transportation, urban rail transit, and internal logistics management of industrial and mining enterprises, etc., it is necessary to accurately determine the absolute position of any point along the track line; on the automated production line, it is necessary to mark the location of the station or workpiece. [0003] For example, in rail traffic safety and command systems, train positioning is a key technology. Accurate and timely acquisition of train location information is the guarantee for safe and effective train operation. There are two types of rail transit positioning technologies: incremental and absolute. Incremental positioning equipment includes wheel encoders and gyroscopes. Absolute positioning equipment includes query tra...

Claims

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Application Information

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IPC IPC(8): G01B7/004G01B21/04B61K9/08
Inventor 朱衡君邱成
Owner BEIJING JIAOTONG UNIV
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