Filament burnout alarm device

Abstract

The invention discloses a filament burnout alarm device which comprises a signal logic unit, a lamp lighting unit, a signal bulb, an acquisition device, a monitoring host, a train command center, a filament relay, a first fuse and a second fuse. The filament burnout alarm device has the advantages that the cost is low, and thus the investment can be saved; weak electronic elements are not arranged inside the acquisition device and are all packaged in a flame-retardant box, and thus the moisture resistance and lightning protection performance are good; the filament burnout alarm device is suitable for alpine and plateau regions and has more obvious effects when used in the environment of multiple thunderstorm weather days in the south; and the acquisition device has cold filament preheating and buffering functions, is used for prolonging the service life of the bulb and has a subsidiary filament early burnout alarming function, thereby compensating for deficiencies of the conventional lamp lighting unit.

Description

technical field [0001] The invention relates to an alarm device, in particular to an alarm device for broken filaments. Background technique [0002] The signal machine is the most important signal equipment to command and ensure the safe operation of the train. The working status of the signal machine should be monitored in real time and an alarm message should be given. [0003] The traditional filament switching alarm system of railway signal machine adopts relay mode to switch filament and alarm. When the main filament is broken, the signal machine is switched to the auxiliary filament through the action of the relay, and the alarm circuit is connected at the same time, and the alarm cable is transmitted to the train command center to notify the staff of the broken wire. This method has the following defects: [0004] 1. It is necessary to add an alarm cable, which not only increases the project investment, but also is not conducive to construction, installation and da...

AI Technical Summary

Problems solved by technology

[0004] 1. It is necessary to add an alarm cable, which not only increases the project investment, but also is not conducive to construction, installation and daily maintenance

[0005] 2. The alarm cannot be sent to the specific location, and the staff must check one by one, which is not convenient for troubleshooting

[0006] 3. When the auxiliary filament breaks first, the alarm cannot be realized. At this time, the main filament breaks, which will cause the signal machine to turn off the light and have no signal display, which directly endangers driving safety and reduces driving efficiency.

[0007] When the main filament breaks and switches to the sub-filament, the voltage will increase, and the sudden voltage will have a cold wire impact on the sub-filament, which will affect the service life of the sub-filament

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