Loss detection system for pantograph carbon contact strip

Abstract

The invention relates to a loss detection system for a pantograph carbon contact strip, and relates to the technical field of optical detection. The system comprises a circuit break alarm module, the circuit break alarm module is in communication connection with a controller, the circuit break alarm module comprises a circuit break light source driving circuit and a circuit break signal detection circuit, the circuit break light source driving circuit comprises a light emitting diode, the circuit break signal detection circuit comprises a first optical signal receiver, the light emitting diode is connected with a fluorescent sensing probe buried in the carbon contact strip through an optical fiber, and the fluorescent sensing probe is optically connected with the first optical signal receiver through an optical fiber.Through the method, the wear condition of the carbon contact strip can be accurately obtained, an alarm can be issued in time, and a worker is reminded to replace the carbon slide plate in time, so that the convenience of carbon contact strip detection is improved; and according to the scheme, the optical fiber is used for information transmission, the information transmission can be completed through a single optical fiber, the controller is convenient to embed, and the feasibility and accuracy of the system can be improved.

Description

technical field [0001] The invention relates to the technical field of optical detection, in particular to a loss detection system of a pantograph carbon slide. Background technique [0002] The pantograph carbon slide is an electrical device that absorbs electric energy by friction between the locomotive and the catenary. The friction between the carbon slide and the catenary will inevitably cause wear. In order to ensure that the carbon slide on the train is not worn out, the wear of the carbon slide must be monitored. To timely replace the pantograph and lift the bow in time to ensure the normal power supply of the train. At the same time, during the operation of the train, the carbon skateboard will generate heat due to the large current generated during the contact with the catenary, and the carbon skateboard is made of elastic strips and aluminum brackets. High temperature may cause it to break , glue opening, warping deformation, etc., so the temperature of the carbo...

AI Technical Summary

Problems solved by technology

And these monitoring devices are single carbon skateboard wear monitoring or temperature monitoring, and when freezing rain, rain and snow, and environmental pollution are serious, it is difficult to accurately and real-time monitor the wear value of carbon skateboards; and ordinary temperature sensor probes are composed of multiple Composed of optical fibers, the transmitting end and receiving end of the light source are on different optical fibers, and too many optical fiber sensors are not suitable for the monitoring of extremely narrow spaces such as carbon slides and carbon strips

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