Calculation method of jet pitch angle for automatic tracking and positioning jet fire extinguishing device

Abstract

The invention belongs to the technical field of fire detection and particularly relates to a method for calculating a jet-flow pitch angle of an automatically-tracked-positioned jet-flow extinguishing device. According to the method, primary parameter measurement and self-correction are carried out on automatically-tracked-positioned jet-flow extinguishing device installed on the spot so as to meet jet-flow extinguishing precisions of different mounting environments, a current positioning angle is obtained by virtue of an angle feedback instrument when a fire source is successfully positioned by the automatically-tracked-positioned jet-flow extinguishing device, and the flow path is counted, so that the pitch angle of the extinguishing jet flow and a deflection angle required for the correction of a gun muzzle can be obtained. When the fire source is positioned by the automatically-tracked-positioned jet-flow extinguishing device after a fire breaks out, a deflection angle required by a gun muzzle extinguishing movement is calculated according to a given jet-flow pitch angle formula and is transmitted to a motor control system after a value of an included angle between a gun barrel and a ground vertical line is collected according to an angle feedback value and is transmitted to a front-end data processing platform, thus finishing the angle correction of the extinguishing jet flow.

Description

technical field [0001] The invention belongs to the technical field of fire detection, and in particular relates to a method for calculating a jet pitch angle of an automatic tracking and positioning jet fire extinguishing device. Background technique [0002] At present, the automatic tracking and positioning jet fire extinguishing devices used in the market usually use the look-up table method to realize the correction of the jet angle after the fire source is successfully located. However, the database table it uses is the empirical data established by a single product in an ideal environment, which often cannot fully adapt to the differences in the field installation environment, and cannot make it meet the high-precision consistency of the jet. [0003] In addition, there is also a technology that after the fire extinguishing jet is sprayed, the jet deviation is gradually corrected by feedback of the deviation of the landing point to realize the closed-loop operation of...

AI Technical Summary

Problems solved by technology

This method does not require high accuracy of the first drop, so the fire extinguishing time is too long. At the same time, the approach of the jet is easy to form a thrust, causing the fire source to splash, and the impact force of the fire extinguishing medium is not fully utilized to form a covering blow, and the fire extinguishing efficiency is low.

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