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A survey meter and a measuring method for measuring distances between trailers of trains

A technology for measuring instruments and trains, which is applied in the direction of line-of-sight measurement, locomotives, and measuring devices. It can solve the problems of interfering locomotives, poor anti-interference ability, and high cost of instruments, and achieves the effects of low cost, strong anti-interference ability, and simple structure.

Inactive Publication Date: 2009-03-04
TIANJIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high cost of the instrument, poor anti-interference ability, low measurement accuracy, and interference with locomotives, it has not been practically applied.

Method used

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  • A survey meter and a measuring method for measuring distances between trailers of trains
  • A survey meter and a measuring method for measuring distances between trailers of trains

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example

[0018] Example: Place the measuring head in a horizontal state on the center of the bridge plate of the locomotive head 2 meters away from the rail. When the power switch is turned on while the locomotive is moving, the measuring head and the black box of the train work simultaneously. The measuring head of the instrument will scan the virtual target of the trailer on the rail, form an image through an optical magnifying glass, and convert it into an electrical signal by a photoelectric converter. The signal is converted into a digital signal by amplifying the preprocessing circuit, filtering, automatic gain circuit, waveform conversion, and counting interface circuit, and then transmitted to the single-chip microcomputer to obtain the locomotive-trailer distance. The inter-vehicle distance at this time may be 100 meters, or may be 120 meters, or may be 150 meters or the like.

[0019] When the trailer is scanned while the locomotive is moving, the trailer is imaged by the op...

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Abstract

This invention discloses an instrument land method for testing distance between a locomotive and a trailer including measurnig head, test circuit system and single chip computer and display and alarm in which the measuring constitutes an optical magnifier, haseplate and photoelectric converter. The test circuit is made up of amplified preprocessing circuit, filter autoamtic gain circuit and wave form variation circuit characterizing that the outut of waveform variation circuit connect in parallel separately with target identifying trigger circuit and computer, interface circuit, which outputs connect in parallel with the single chip computer, display and alarm.

Description

technical field [0001] The invention relates to a simple, practical and low-cost train locomotive trailer distance measuring instrument and a measuring method. It belongs to the rangefinder and rangefinder technology. Background technique [0002] When the train locomotive hangs the compartment, serious collision accidents often occur because of the inaccurate distance measurement of the train locomotive, resulting in huge losses of casualties and material damage. There is no good trailer-to-vehicle distance measuring instrument at present. Only rely on the artificial estimation of the train locomotive driver, so the error is large, and the train distance cannot be accurately determined. Even due to factors such as long-term observation and fatigue driving, crashes are caused. Need to develop a kind of distance measuring instrument for this reason. The measuring instrument is required to meet the requirement that the ranging distance is greater than five "vehicle distanc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C3/06B61C17/00
Inventor 樊玉铭
Owner TIANJIN UNIV