Portable contact net wire abrasion measuring instrument

Abstract

The invention discloses a portable contact net wire abrasion measuring instrument. The measuring instrument comprises a measuring terminal and a ground handheld data terminal. The structure principle of the measuring instrument is that information transmission between the measuring terminal and the ground handheld data terminal is achieved through a wireless mode. A high accuracy displacement sensor, a wireless module, a lithium battery module, a battery life monitoring module, a temperature acquisition module, a joint test action group (JTAG) module, a key module and a microprocessor module are arranged in the measuring terminal, the microcomputer module is respectively connected with the high accuracy displacement sensor, the battery life monitoring module, the temperature acquisition module, the JTAG module and the key module, the microprocessor module is connected with the wireless module through a built-in universal asynchronous receiver / transmitter (UART), and a true color large screen liquid crystal, a keyboard, a wireless module, a global position system (GPS) module, a data base module and a lithium battery module are arranged in the ground handheld data terminal. According to the portable contact net wire abrasion measuring instrument, the measuring method is simple and reliable, the measuring accuracy is high, the usage is convenient, the human-computer interface is friendly, and the data processing and outdoor GPS accurate positioning are achieved.

Description

technical field [0001] The invention relates to a portable measuring instrument for the wear of contact wires. Background technique [0002] At present, there are two main ways to measure the wire wear of electrified railway catenary: 1. Inspection vehicle measurement: mainly imported, our country started late in this aspect, and the technology is not yet mature. Disadvantages of using inspection vehicles for measurement: On the one hand, the price of inspection vehicles, whether foreign or domestic, is quite expensive, the structure is complex, and it is difficult to popularize and promote in a large area; Detection requires unified scheduling, so it is inconvenient in application. 2. Manual measurement with vernier calipers. For a long time, vernier calipers have been used to manually measure the wear of catenary at the grassroots level of my country's railways. This method is labor-intensive, low in efficiency, and has a long detection cycle and less data collection. It ...

AI Technical Summary

Problems solved by technology

Disadvantages of using inspection vehicles for measurement: On the one hand, the price of inspection vehicles, whether foreign or domestic, is quite expensive, the structure is complex, and it is difficult to popularize and promote in a large area; Detection requires unified scheduling, so it is inconvenient in application

2. Manual measurement with vernier calipers. For a long time, vernier calipers have been used to manually measure the wear of catenary at the grassroots level of my country's railways. This method is labor-intensive, low in efficiency, long in detection cycle, and less in data collection. It is difficult to meet the needs of the rapid development of modern electrified railways.

The data measurement of the device is mainly completed by the optical structure and CCD image processing. The optical structure is composed of the lighting system and the imaging system. CCD image data processing is very complex, coupled with the unreasonable design of the device, resulting in inconvenient on-site application and difficult to collect data accurately; in addition, the system does not have a handheld data receiving terminal and cannot further analyze the measurement results , resulting in limited functionality of the device

Based on the above points, it is difficult for the device to be applied in practice; therefore, no matter whether it is expensive foreign technology or equipment, or the existing domestic technology, it cannot solve the problem of convenience, wear and tear in the daily detection of electrified railway catenary wire wear. quick puzzle

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