Three-dimensional ultrasonic wind speed and wind direction detection system and measurement method

Abstract

The invention discloses a three-dimensional ultrasonic wind speed and wind direction detection system and a measurement method. The detection system comprises a mounting base, a plurality of measurement arms, ultrasonic probes and a control and processing circuit board, wherein the quantity of the ultrasonic probes is equal to that of the measurement arms; one measurement arm is fixed to the center of the top surface of the mounting base, and the remaining measurement arms are arranged on the circumference of the top surface of the mounting base in a surrounding mode; the ultrasonic probes are arranged at the top ends of the measurement arms; the control and processing circuit board is arranged in the mounting base, is connected with the ultrasonic probes and controls the ultrasonic probes to work. The measurement method comprises the first step that all modules are initialized through a control and data processing module; the second step that a wind speed component V1 can be obtained according to transmission time t1 and t4 by the adoption of an indirect time difference method; the third step that three-dimensional wind speed values and wind direction values are obtained; the fourth step that real-time three-dimensional wind speed and wind direction are obtained. The three-dimensional ultrasonic wind speed and wind direction detection system and the measurement method have the advantages that received signals are stable; the instrument cost is greatly lowered; measurement accuracy is high, and real-time performance is good.

Description

technical field [0001] The invention relates to a wind speed and direction detection system and a measurement method, in particular to a three-dimensional ultrasonic wind speed and direction detection system and measurement method. Background technique [0002] At present, compared with the traditional mechanical anemometer, the advantages of the ultrasonic wind measurement system are: no start-up wind speed limit, strong environmental adaptability, adaptable to all-weather weather, no mechanical wear, not easy to corrode, long service life, high precision High, intelligent, high reliability, simple installation, easy maintenance and calibration, etc.; it can not only meet the needs of meteorological wind measurement in the military field, but also has many uses in civilian use, such as climate meteorology, urban environmental monitoring, wind power generation It has very good application prospects in meteorological monitoring, bridges and tunnels, automobile highways, navig...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a three-dimensional ultrasonic wind speed and direction detection system and measurement method in order to solve the problems of the existing three-dimensional ultrasonic wind measurement system with complex structure, which is not conducive to cost control and product promotion.

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