A method for testing the quality of locomotive eddy current speed sensor pulse generator

Abstract

The invention discloses a method for detecting the quality of a locomotive eddy current speed sensing pulse generator, which adopts a test system for the eddy current speed sensing pulse generator, and the specific steps are as follows: The time parameter t and the speed parameter v are set; the servo speed-regulating motor drives the eddy current speed sensor pulse generator through the rotating shaft to output two oscillating pulses with rotational speed information; the obtained two oscillating pulses with rotational speed information are passed through the After processing by the anti-EMI processing device, send them to frequency-voltage converter A and frequency-voltage converter B respectively and convert them into square wave pulses with speed information; calculate the running speed v' of the locomotive through two square wave pulses, and calculate v' The speed error d between v and v; compare the speed error d with the standard error value to judge whether the eddy current speed sensor pulse generator is qualified. It solves the problems of inconvenient test environment and high cost of the current locomotive eddy current speed sensor pulse generator.

Description

technical field [0001] The invention belongs to the technical field of rail locomotive speed measurement, and relates to a method for detecting the quality of a locomotive eddy current speed sensor pulse generator. Background technique [0002] Accurate measurement of train speed and travel distance is an important task to realize automatic control of trains. The core functions of the on-board automatic train protection (ATP) and automatic train driving subsystem (ATO) of automatic train control (ATC) are to realize the safety monitoring of train running status and running speed. At present, eddy current sensors are mostly used in train odometers (speed sensor pulse generators), which are characterized by reliable structure, high measurement accuracy, and relatively easy maintenance, etc., and have been widely used in train speed measurement and positioning systems. [0003] Due to the lack of detection and calibration system of the eddy current speed sensor pulse generator...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for detecting the quality of the locomotive eddy current speed sensor pulse generator, which solves the need to test on the test line for the current locomotive eddy current speed sensor pulse generator test, test and correct the eddy current speed The sensor pulse generator has a long time period, the test environment is inconvenient, and the cost of testing and calibration is high.

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