Error correction system and method for fire scene air pressure height sensor

Abstract

The invention discloses an error correction system and method for a fire scene air pressure height sensor. The system comprises a capacitive pressure sensor, a temperature sensor, a multiplexer, a signal conditioning circuit, a memorizer circuit, a digital interface circuit, a calibration coefficient input circuit, a microprocessor and a wireless communication circuit. A multi-path capacitive airpressure height sensor is adopted, a temperature compensation function is achieved, the measurement accuracy of a single-path capacitive air pressure height sensor is greatly improved, through a multi-path capacitive type air pressure height sensor weighted fusion algorithm, calibration compensation work of the air pressure height sensor is completed, the measuring precision and the safety reliability are much higher than those of an existing product, the actual working accuracy of the air pressure height sensor is improved, interference factors from the air pressure height sensor itself and environment are reduced to the minimum, and the system is suitable for height positioning of inside fire fighting personnel in the fire scene, ingenious in method, novel in structure and has a good application prospect.

Description

technical field [0001] The invention relates to the technical field of electronic measurement, in particular to an error correction method for an air pressure height sensor used in a firefighting field. Background technique [0002] With the development of social economy and the increase of urban population, high-rise buildings have become a trend of urban construction, and the number of high-rise and even super high-rise buildings in China is increasing year by year. At the same time, fires in high-rise buildings also occur from time to time. How to carry out fire-fighting and rescue work for high-rise buildings, how to lock the real-time location of insiders, and when an accident occurs, lock and search for insiders as soon as possible, so as to achieve "no casualties". For high-rise buildings, internal attackers entering the interior of high-rise buildings do not have GPS / BeiDou to assist in calculating the altitude. How to determine the floor where the internal attacker ...

AI Technical Summary

Problems solved by technology

The error correction method of the present invention for the air pressure height sensor in the fire fighting field not only overcomes the problems of low reliability, high damage rate, and poor consistency of a single sensor, but also solves the problems caused by measurement in high temperature and high humidity environments. Low precision, large error, high uncertainty and limitations, the measurement accuracy and safety reliability are much higher than existing products, improve the actual working accuracy of the barometric altitude sensor, and minimize the barometric altitude sensor itself and environmental interference factors, It is suitable for the height positioning of internal attackers in firefighting fields. The method is ingenious, the structure is novel, and it has a good application prospect

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