Micro pressure sudden change measurement device based on four-axis aircraft and static pressure head and method thereof

Abstract

The invention provides a micro pressure sudden change measurement device based on a four-axis aircraft and a static pressure head and a method thereof. The device comprises the four-axis aircraft, anair pressure measurement device based on the static pressure head, a single-chip microcomputer, a wireless communication module, a flight control module, a GPS positioning module and a data processingcenter, wherein the air pressure measurement device based on the static pressure head comprises the static pressure head, a high-resistance pressure sensor, an amplification filter circuit, an A / D converter and a single-chip microcomputer used for processing data. The micro pressure sudden change measurement device based on the four-axis aircraft and the static pressure head and the method thereof are capable of achieving high reliability and high stability of micro pressure sudden change measurement, can be used for monitoring climate change corresponding to the air pressure sudden change, and are also capable of early warning meteorological disasters.

Description

technical field [0001] The invention relates to a device and method for measuring micro-pressure changes based on a four-axis aircraft and a static pressure head, and is especially suitable for measuring weak changes in air pressure below an altitude of 1 km. Background technique [0002] The small sudden change of pressure has always been a focus of meteorological research, and is closely related to the formation of meteorological disasters. Therefore, effective monitoring of small sudden changes in pressure is conducive to the early warning of meteorological disasters. At present, piezoresistive pressure sensors are mainly used to measure air pressure, which is low in cost, but its measurement accuracy is low, and it is difficult to detect small changes in air pressure, such as small changes of about 5 to 20 Pa in the air. Because there is wind in the high altitude, the wind pressure will affect the measurement accuracy of the air pressure, resulting in errors in the measu...

AI Technical Summary

Problems solved by technology

At present, piezoresistive pressure sensors are mainly used to measure air pressure, which is low in cost, but its measurement accuracy is low, and it is difficult to detect small changes in air pressure, such as small changes of about 5 to 20 Pa in the air

Due to the presence of wind in high altitudes, the wind pressure will affect the measurement accuracy of the air pressure, resulting in errors in the measurement results. How to solve the problem of wind pressure interference and effectively improve the measurement accuracy becomes extremely important

[0003] Conventional air pressure measurement is realized by flying sounding balloons. Although this method is simple, convenient and easy to implement, due to wind factors, the distance between the two points before and after the measurement may be far away, and the air pressure value changes greatly, which may not be possible. Determine whether a micro-voltage mutation has occurred

At the same time, the measured points all change with the direction of the wind, and the air pressure value of a fixed point cannot be measured

Moreover, this method needs to fly the sounding balloon many times, which takes a long time, and the time interval between the two times is long, and it is impossible to monitor the sudden change of the air pressure value in real time.

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