Fault lamp detection circuit and system

The invention provides a fault lamp detection circuit and system, and relates to the technical field of lamps. The fault lamp detection circuit comprises a processor, a constant current source, a reference power supply, an operational amplifier module, a lamp module, a switch module, a resistor module and a relay module; the switch module is switched on when the lamp module is disconnected; the operational amplifier module outputs a state signal according to the ON/OFF state of the lamp module and the conduction state of the switch module; and the processor controls the connection state of therelay according to the state signal so that undamaged light sources in the lamp module can be operated normally. The fault lamp detection circuit and system have the advantages that manual operationis not needed, use is more convenient, and the system and method have no inconvenience for normal operation of an airport. 本发明实施例提出种故障灯检测电路与系统，涉及灯具技术领域。故障灯检测电路包括处理器、恒流源、基准电源、运算放大器模块、灯具模块、开关模块、电阻模块以及继电器模块，开关模块用于在灯具模块处于断开状态时导通，运