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Intelligent sensor for train wheels

A technology of intelligent sensors and train wheels, which is applied in the direction of transmitting sensing components, instruments, scientific instruments, etc. by using electric/magnetic devices, can solve problems such as short trouble-free working time, low reliability of sensors, and inconvenient installation and maintenance. Avoid damage to the sensor caused by lightning and high-voltage induction, easy installation and maintenance, and high reliability

Inactive Publication Date: 2014-01-01
CHENGDU KNIGHT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantages of the active train wheel sensor are: the output signal amplitude is fixed; but it needs an external power supply to work, it is inconvenient to install and maintain, and in the harsh environment of the track, the power supply is easily damaged, and the reliability of the sensor is low. Relatively short downtime

Method used

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  • Intelligent sensor for train wheels
  • Intelligent sensor for train wheels

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] figure 1 Shown, a kind of specific embodiment of the present invention is, a kind of train wheel intelligent sensor, and its composition is:

[0027] The permanent magnet coil 1 is sequentially connected with the low-pass filter circuit 2, the amplification and shaping circuit 3, the analog / digital conversion circuit 4, the output interface and the interface conversion circuit 6; the analog / digital conversion circuit 4, the output interface and the interface conversion circuit 6 are all the same as the micro The processing control unit 5 is connected;

[0028] The permanent magnet coil 1 is also connected to the rectification filter circuit 8, the energy storage circuit 9, the charging control circuit 10, and the rechargeable battery 11 in sequence; The processing control unit 5, the output interface and the interface conversion circuit 6 supply power.

[0029] The output interface and the interface conversion circuit 6 of this example are also connected to the wirele...

Embodiment 2

[0034] figure 2 Shown, another kind of embodiment of the present invention is, a kind of train wheel intelligent sensor, and its composition is:

[0035] The permanent magnet coil 1 is sequentially connected with the low-pass filter circuit 2, the amplification and shaping circuit 3, the analog / digital conversion circuit 4, the output interface and the interface conversion circuit 6; the analog / digital conversion circuit 4, the output interface and the interface conversion circuit 6 are all the same as the micro The processing control unit 5 is connected;

[0036] The permanent magnet coil 1 is also connected to the rectification filter circuit 8, the energy storage circuit 9, the charging control circuit 10, and the rechargeable battery 11 in sequence; The processing control unit 5, the output interface and the interface conversion circuit 6 supply power.

[0037] The output interface and the interface conversion circuit 6 of this example are also connected to the lightnin...

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Abstract

The invention provides an intelligent sensor for train wheels. The structure of the intelligent sensor is as follows: a permanent magnet coil (1) is sequentially connected to a low-pass filter circuit (2), an amplification shaping circuit (3), an analog / digital switching circuit (4) and an output interface and interface converting circuit (6); the analog / digital switching circuit (4) and the output interface and interface converting circuit (6) are both connected to a microprocessing control unit (5); the permanent magnet coil (1) is also sequentially connected to a rectification filter circuit (8), an energy storage circuit (9), a charging control circuit (10) and a charging battery (11); the charging battery (11) is used for supplying power to the low-pass filter circuit (2), the amplification shaping circuit (3), the analog / digital switching circuit (4), the microprocessing control unit (5) and the output interface and interface converting circuit (6). The intelligent sensor does not need an external power source, is convenient to install and maintain, has high reliability and can be used for recognizing wheel signals of low-speed trains.

Description

technical field [0001] The invention relates to a train wheel sensor, in particular to the field of train wheel sensors with low-speed (<5㎞ / h) processing capability. Background technique [0002] The train wheel sensor is a sensor installed on the inner side of the track to detect whether the train wheel passes. At present, train wheel sensors are mainly divided into passive train wheel sensors and active train wheel sensors. [0003] The working principle of the passive train wheel sensor is that when the train wheel passes, the wheel cuts the permanent magnetic field of the wheel sensor, and induces a corresponding alternating signal in the sensor coil, giving the signal of the train wheel passing. The main advantage of the passive wheel sensor is that it does not require external power supply when working, and uses few components, but the disadvantage is that the output signal amplitude will change with the speed of the train, especially when the speed is lower than 5...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D5/14
CPCH02J50/10G01V3/10H02J2207/10H02J7/0063H02J7/00
Inventor 陈子康
Owner CHENGDU KNIGHT TECH
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