Acousto-optic alarm circuit for visual monitoring machine room

The utility model discloses an acousto-optic alarm circuit for a visual monitoring machine room, comprising a temperature sensor P1, a temperature signal conditioning circuit, an A/D conversion circuit, a single-chip microcomputer U1, an alarm circuit and a wireless communication circuit, when the temperature value acquired by the temperature sensor P1 is greater than a preset alarm threshold value, an alarm prompt is sent out through the alarm circuit, and the alarm prompt is sent out through the wireless communication circuit. Meanwhile, the temperature value collected by the temperature sensor P1 is transmitted to the remote monitoring host in real time through the wireless communication unit, so that the worker can monitor the temperature value in the equipment in real time in the background and judge which equipment works abnormally, and then the equipment which works abnormally is overhauled or replaced; the problem that the visual monitoring machine room is paralyzed due to equipment damage is solved,