Overhead line system temperature dynamic detection system

Abstract

The invention discloses an overhead line system temperature dynamic detection system. The system comprises a data acquisition module, an image processing module, an overhead line system position identification module, an overhead line system comprehensive defect comprehensive identification module, a monitoring terminal and a wireless transmission module. According to the technical schemes of the system, a high-speed thermal infrared imager and a high-definition visible light camera set are adopted to collect temperature data and image data of an overhead line system, and fault point is pre-judged, and an alarm is given in advance; the fault point is positioned through a positioning system or by accessing TAX data; and early warning information is sent to a ground monitoring terminal through wireless communication, so that analysis and early warning can be carried out. According to an existing overhead line system temperature dynamic detection technology, due to the fact that a thermal imager is not high in adaptation to vehicle speed, overhead line system defects are prone to missing detection, the temperature measurement error is large, and large-area application is not achieved. With the overhead line system temperature dynamic detection system of the invention adopted, the temperature of the overhead line system can be accurately and dynamically measured, and analysis and early warning are conducted on defects.

Description

technical field [0001] The invention relates to the field of power grid detection, in particular to a dynamic detection system for catenary temperature. Background technique [0002] The main conductive circuit of the railway line catenary is composed of power supply lines, return lines, catenary cables, contact lines, hanging strings, connecting lines, etc. The various parts are connected by various clamps, so that this loop extends along the railway, meeting the needs of supplying power to the electric locomotive. The main conductive circuit must be good to ensure the smooth flow of current. If there is a defect, it will cause excessive local current carrying and serious shunting of parts, which will cause local temperature rise of the catenary and burn the catenary equipment. This kind of fault is in the catenary. account for a large proportion of failures. All kinds of connecting wire clips are the weak links in the conductive circuit of the catenary. The contact resis...

AI Technical Summary

Problems solved by technology

Existing methods need to consume a lot of human resources, it is difficult to realize the regular observation and judgment of each clamp position, only key positions can be observed, and there are human misjudgments

Some existing technologies use thermal imaging to detect the temperature at the connection between the catenary and the pantograph catenary. Since the thermal imager is not suitable for high vehicle speeds, it is easy to miss some catenary defects and the temperature measurement error is relatively large.

Other thermal imaging on-board testing equipment is suitable for low speed and large temperature measurement error, so there is no large-scale application

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