Infrared range finding system and range finding method thereof

Abstract

The invention discloses an infrared range finding system and a range finding method thereof. The range finding system comprises an infrared emitter, an infrared receiver, a single-chip microcomputer and a display device. The range finding method comprises that the single-chip microcomputer is initialized, and real-time data of a voltage signal emitted from an infrared receiving tube is read; an A / D converter carriers out A / D conversion to convert the voltage signal into a digital signal that can be processed by the single-chip microcomputer; the digital signal is decoded, the frequency of thesignal is changed, and the signal is displayed in the form of a voltage value; a distance corresponding to the voltage value is calculated; data initialization is repeated, data is collected, and theprecision is calculated further; and finally, the changed voltage is converted into distance, and the distance is displayed. An integral image identification, separation and reconstruction scheme is formed, and especially, real-time dynamic capturing can be realized. An infrared image in a pure mode is clearer, and can be dynamically determined, and schemes with higher requirement for frames and accurate control precision can be realized.

Description

technical field [0001] The invention relates to the technical field of infrared sensors and infrared imaging, in particular to an infrared ranging system and a ranging method thereof. Background technique [0002] Infrared imaging technology is a promising high-tech. Electromagnetic waves longer than 0.78 microns are located outside the red of the visible light spectrum, called infrared rays, also known as infrared radiation. It refers to electromagnetic waves with a wavelength of 0.78-1000 microns, of which the part with a wavelength of 0.78-2.0 microns is called near-infrared, and the part with a wavelength of 2.0-1000 microns is called thermal infrared. In nature, all objects can radiate infrared rays, so the infrared image formed by different thermal infrared rays can be obtained by using the detector to measure the infrared difference between the target itself and the background. The existing infrared thermal imaging technology is relatively mature, and it is also use...

AI Technical Summary

Problems solved by technology

Due to the influence of bad weather, pollution and other factors, the detection distance of the reflected laser beam at a certain power is reduced by about half of the maximum possible detection distance, and the loss is very large, which affects the accuracy of detection; The equipment and oscillators and other circuits used in some industrial developments are expensive, and the civilian market has hardly been developed yet; some people have done research on ultrasonic distance measurement at home and abroad, but it is difficult to popularize because of the high price due to the use of special special components

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