Wind speed on-line measurement system and test method

Abstract

The invention discloses a wind speed on-line measurement system and a test method. The measurement system includes a test pipeline, a monitoring board, a differential pressure detection circuit, a voltage signal acquisition and conversion circuit, a single-chip microcomputer, a communication module and a receiving terminal. The test method is as follows: 1) a measurement system is placed in a wind field; 2) wind speed measurement is performed through a detection plate, and wind speed signals are converted to voltage signals; 3) then voltage signal acquisition is performed through the differential pressure detection circuit, and voltage signals are transmitted to the single-chip microcomputer after passing through the voltage signal acquisition and conversion circuit; 4) the received voltage signals are reverted to wind speed after being processed through the single-chip microcomputer; and 5) the single-chip microcomputer sends wind speed signals to a receiving terminal through the communication module. The wind speed on-line measurement system provided is simple in structure, the test method is convenient to test, and low wind speed can be accurately measured.

Description

technical field [0001] The invention relates to the technical field of wind speed monitoring, in particular to an online wind speed measurement system and a testing method capable of accurately measuring low wind speeds. Background technique [0002] At present, there are mainly mechanical, pressure, thermal, and acoustic methods for wind speed online monitoring technology. According to these test methods, corresponding mechanical rotary anemometers, pressure anemometers, thermal anemometers, acoustic anemometers, vortex anemometers, etc. have been formed on the market. However, there is a common defect in the different existing wind speed test methods: the measurement of low wind speed <7m / s is inaccurate, and effective measurement cannot be carried out for ultra-low wind speed <0.3m / s. Moreover, due to the unique gas laminar flow characteristics of low wind speed, neither the pressure type nor the thermal type can detect data or the detection is inaccurate. The mech...

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Problems solved by technology

[0005] In view of the above-mentioned deficiencies existing in the prior art, the object of the present invention is how to solve the problem that the low wind speed cannot be accurately measured, and provide an online wind speed measurement system and testing method

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