Headlamp failure alarm

The utility model provides a headlamp failure alarm, which comprises a headlamp, a power supply circuit, a failure alarm circuit and a control circuit. The control circuit connected with the headlamp is used for detecting an operation instruction issued by a driver platform and executing the operati...

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Bibliographic Details
Main Authors LI RUNIAN, HUANG MINGDA, WANG LIANCHENG, WANG LIN, ZHOU BO, ZHANG CHANGFENG, HU TING
Format Patent
LanguageChinese
English
Published 20.06.2012
Subjects
ENSURING THE SAFETY OF RAILWAY TRAFFIC
GUIDING RAILWAY TRAFFIC
PERFORMING OPERATIONS
RAILWAYS
TRANSPORTING
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Summary:The utility model provides a headlamp failure alarm, which comprises a headlamp, a power supply circuit, a failure alarm circuit and a control circuit. The control circuit connected with the headlamp is used for detecting an operation instruction issued by a driver platform and executing the operation instruction. The power supply circuit comprises a headlamp power supply circuit and a failure alarm power supply circuit. The headlamp power supply circuit and the failure alarm power supply circuit are mutually independent. The headlamp power supply circuit is connected with the headlamp. The failure alarm power supply circuit is connected with the failure alarm circuit. The failure alarm circuit comprises a hall sensor and an alarm output circuit. The hall sensor is used for detecting the current flowing through the headlamp and outputting the detection result to an alarm output circuit. According to the utility model, since the headlamp failure alarm adopts a hall sensor, the headlamp failure alarm can acquir
Bibliography:Application Number: CN20112433020U