Digitization method for railway vehicle bearing acoustic detection system and implementation device for digitization method

A detection system and railway vehicle technology, which is applied in the direction of railway vehicle shape measuring devices, railway car body parts, railway auxiliary equipment, etc., can solve problems such as transmission being easily disturbed, signal quality degradation, and large amount of on-site construction, and achieve signal quality Good, strong anti-interference ability, the effect of avoiding signal noise

Inactive Publication Date: 2015-10-28
BEIJING CTROWELL INFRARED TECHN
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  • Abstract
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AI Technical Summary

Problems solved by technology

Apply the digital acquisition and transmission scheme provided by the present invention to the vehicle bearing acoustic detection system to overcome the shortcomings of the existing system in the field application, such as the signal quality degradation, the transmission is susceptible to interference and the large amount of on-site construction

Method used

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  • Digitization method for railway vehicle bearing acoustic detection system and implementation device for digitization method
  • Digitization method for railway vehicle bearing acoustic detection system and implementation device for digitization method

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Embodiment Construction

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0019] The present invention first proposes a digital device for the acoustic detection system of railway vehicle bearings, such as figure 1 As shown, the digitization device includes a main control system, a data acquisition system, a wheel sensor, a boot sensor, a digital microphone array and network equipment. Wherein the main control system includes a microprocessor module (microprocessor MCU, memory RAM, hard disk), a radio frequency vehicle number module, a motor closed-loop control module and an interrupt signal conditioning module, and the memory RAM and the hard disk are directly connected to the microprocessor MCU, so The microprocessor MCU is connected to the motor closed-loop control module, and the radio frequency vehicle number module is connected through the serial port, the network device is connected through the network interface, and the int...

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Abstract

The invention discloses a digitization method for a railway vehicle bearing acoustic detection system and an implementation device for the digitization method, and belongs to the technical field of train security monitoring. A master control system, a data collection system, a wheel sensor, a startup sensor, a digital microphone array and a network device are arranged in a rail edge protection cabinet for processing train signals, obtaining vehicle passing data and uploading the data to a vehicle depot data center through a high-speed network in forms of specific messages. By means of the digitization method and the implementation device, vehicle bearing sounds are collected directly through digital microphones, the vehicle bearing sounds and other signals are directly processed in the rail edge protection cabinet, all field data are digitized, signal noise caused when analog signals are transmitted in a long-line manner is avoided, the signal quality is high, and the anti-interference capacity is high; the digitization data are directly transmitted to a central server through a high-speed network channel, and cable line resources are saved.

Description

technical field [0001] The invention belongs to the technical field of train safety monitoring, and in particular relates to a digital method for an acoustic detection system of a railway vehicle bearing. Background technique [0002] Rolling bearings are the key components of the running part of the train, and their quality directly affects the safety of the train. All kinds of trains in our country have the characteristics of high running density, long running mileage, complex running environment, various types of bearings, and large discrete life. Dynamic monitoring of the running status of train bearings is an important means to ensure the safety of train operation. [0003] At present, the detection of the running state of train bearings in China mainly relies on infrared shaft temperature measuring devices. Axle temperature measurement devices can be divided into two types: railside measurement system and on-board measurement system, which can meet the axle temperatur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61K9/04
CPCB61K9/04
Inventor 周毛毛陈曦张亨张益袁高斌姚剑博张析陈佳斌周立玮黄跃
Owner BEIJING CTROWELL INFRARED TECHN
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