Automatic fire-extinguishing system based on NiosII video image recognition

Abstract

The invention discloses an automatic fire extinguishing system of Nios II-based video image identification, comprising a camera, an image collector, an Nios II-based video image processor, a controller based on embedded ARM and an electrically controlled fire water monitor; the invention is characterized in that: the camera is connected with the image collector which is connected to a corresponding external function pin of the Nios II-based video image processor, the corresponding function pin of the Nios II-based video image processor is connected with a corresponding function pin of the controller based on embedded ARM and the corresponding external function pin of the controller based on embedded ARM is connected with the electrically controlled fire water monitor; the controller basedon embedded ARM receives the fire condition position signal and the impingement position signal of the water column, the difference of the fire condition position and the impingement position of the water column is calculated, the movement of driving the electrically controlled fire water monitor is controlled, thus causing the impingement position of the water column and the fire condition position to be overlapped, and achieving the aim of fast and precise fire extinguishing.

Description

Technical field: [0001] The invention belongs to the field of fire linkage automatic control, in particular to an automatic fire extinguishing system based on Nios II video image recognition. Background technique: [0002] There are roughly two types of existing automatic fire water monitors: [0003] 1) Use infrared or ultraviolet sensitive devices as sensors to detect fire sources, mainly using horizontal and vertical scanning of narrow slits to search for fire sources within a certain range; [0004] 2) The simultaneous acquisition of video images and infrared images is adopted, the video images are used for manual monitoring, and the infrared images are used to find fire sources; the automatic fire water monitors of the above two methods have a weakness: because they are open-loop control, It can only control the fire water cannon to spray water in the general direction to extinguish the fire, but it cannot be completely aimed at the fire source. Moreover, when the wind...

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Problems solved by technology

[0004] 2) The simultaneous acquisition of video images and infrared images is adopted, the video images are used for manual monitoring, and the infrared images are used to find fire sources; the automatic fire water monitors of the above two methods have a weakness: because they are open-loop control, It can only control the fire water cannon to spray water in the general direction to extinguish the fire, but it cannot be completely aimed at the fire source. Moreover, when the wind direction, wind force, water pressure and other conditions at the fire scene change, the spraying direction of the water column cannot be corrected in time. At the critical moment of fire extinguishing May not have due effect; The development of modern video recognition technology has created conditions for the realization of the present invention

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