Smoke monitoring alarm device and method

The embodiment of the invention provides a smoke monitoring and alarming device and method, relates to the technical field of environment monitoring and emergency processing, and can timely find a fire with less smoke and accurately detect a fire point so as to execute refined fire extinguishing operation. The method provided by the embodiment of the invention comprises the following steps: receiving smoke concentration original data acquired by a smoke concentration sensor and a current image acquired by an image acquisition unit; inputting the communication features of the differential image of the current image into a pixel resolution model to obtain risk area data at the current moment; when it is judged that the smoke concentration original data exceed a concentration threshold value or the risk area data meet an image alarm condition, a fire alarm message is sent to a user terminal; and converting the original data of the smoke concentration into smoke concentration data, performing weighted clustering