A monocular self-adjusting fire point three-dimensional positioning method and device

Abstract

The invention discloses a monocular self-adjusting fire point three-dimensional positioning method and device, which solves the problems that the binocular position is fixed, the solving precision islimited, the shooting position cannot be adapted when being shielded, and the equipment cost is high in the existing binocular image method. According to the method, a thermal infrared imager is usedas an image acquisition means, and a ball screw is driven by a stepping motor to drive monocular image acquisition equipment; a controller is used as a control means, a control system is compiled at aPC end, and a corresponding camera calibration calculation algorithm, a corresponding shooting distance calculation algorithm and a corresponding thermal image fire point three-dimensional coordinatecalculation algorithm are matched, so that automatic early warning of the fire point is realized, and meanwhile, three-dimensional space coordinates of the fire point are given. The method and the device can be applied to three-dimensional positioning of fire points in a limited space such as a room or a vehicle or a ship, are strong in environmental adaptability and positioning accuracy, and caneffectively save the cost.

Description

technical field [0001] The invention belongs to the technical field of mechanical and electronic engineering, and specifically relates to a monocular self-adjusting fire point that can be applied to three-dimensional positioning of fire points in limited spaces such as indoors or in vehicles and ships, has strong environmental adaptability, high positioning accuracy, and can effectively save costs. Three-dimensional positioning method and device. Background technique [0002] For the automatic fire extinguishing system, it is very important to accurately locate the three-dimensional space position of the fire point at the initial stage of the fire, which directly determines the aiming accuracy of the fire extinguishing equipment, and plays a key role in whether the automatic fire extinguishing system can effectively control the fire in the early stage of the fire. [0003] The location of fire points in limited spaces such as indoors or in vehicles and ships requires the sys...

AI Technical Summary

Problems solved by technology

Although this type of method can obtain the three-dimensional coordinates of the fire point, there are the following problems: (1) The binocular position is fixed and the distance between them is generally small, so the solution accuracy is limited; (2) In a complex environment, if the current shooting position is blocked, it cannot Adaptation; (3) The cost of infrared thermal imaging equipment is relatively high, and the configuration of two infrared thermal imaging equipment at a single measuring point increases the cost

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