High-accuracy smoke flame alarm and circuit

Abstract

The invention provides a high-accuracy smoke flame alarm, and belongs to the field of alarms. The high-accuracy smoke flame alarm comprises a main control circuit board, a smoke detection sensor, a flame pulse sensor, an automatic fire extinguishing module and a fire hazard dangerous case alarm module, wherein the main control circuit board is provided with a central processing module, a power supply and an output interface module, the central processing module is electrically connected with the power supply, the smoke detection sensor, the flame pulse sensor and the fire hazard dangerous case alarm module, and the automatic fire extinguishing module is connected with the central processing module through the output interface module. According to the invention, the smoke concentration and the flame pulse count of the electric vehicle charging site are monitored at the same time, and alarm is triggered only when smoke alarm and flame alarm are both achieved, so that the fire danger can be found in time, and the fire danger judgment accuracy is improved; and the fire danger can be eliminated in time through the automatic fire extinguishing module, so that unnecessary losses are avoided, and the problems that a traditional fire alarm is high in false alarm rate, manpower and material resources are wasted, and active fire extinguishing cannot be achieved are solved.

Description

technical field [0001] The invention relates to the technical field of alarms, in particular to a highly accurate smoke and flame alarm and a circuit. Background technique [0002] The electric vehicle charging site is an important infrastructure in the daily use of electric vehicles. As a comprehensive electrical facility, it includes oil pipelines, high-voltage power grids, battery packs, and mixed mechanical structures, power distribution rooms, charging and replacement rooms and Any negligence in the monitoring room may cause a potential fire hazard. The existing fire alarm mode generally detects the smoke concentration or the on-site temperature or the intensity of ultraviolet rays. When the smoke is detected to be greater than a certain proportion or the on-site temperature is higher than a certain threshold or the ultraviolet intensity exceeds a certain threshold, an alarm is triggered. It is a relatively simple monitoring. Failure to detect fire hazards in an early ...

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Problems solved by technology

[0003] In order to solve the problems in the prior art, the present invention provides a high-accuracy smoke and flame alarm and circuit. By simultaneously monitoring the smoke concentration and flame pulse count of the electric vehicle charging site, the smoke alarm and flame alarm can be activated under both conditions. The alarm will be triggered only when it is achieved, and the fire d

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