A radiosonde and its meteorological data measuring method

A technology of radiosondes and gyroscopes, applied in the direction of instruments, etc., can solve the problems of uncertain wind speed and wind direction, and achieve the effect of high measurement accuracy

Active Publication Date: 2019-05-31
AEROSPACE DONGFANGHONG DEV LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the embodiments of the present invention is to provide a radiosonde meteorological data measurement method to solve the problem that the radiosonde based on satellite navigation and positioning application in the prior art cannot determine the wind speed and wind direction when the navigation satellite signal is out of lock. problem, thereby improving the measurement accuracy of wind speed and wind direction

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  • A radiosonde and its meteorological data measuring method
  • A radiosonde and its meteorological data measuring method
  • A radiosonde and its meteorological data measuring method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] figure 1 The implementation process of meteorological data measurement by the radiosonde provided by the first embodiment of the present invention is shown, which is detailed as follows:

[0024] In step S101, the accelerometer installed on the radiosonde is used to measure the acceleration signal of the radiosonde.

[0025] The accelerometer may be a micromechanical accelerometer.

[0026] The acceleration signal obtained by the accelerometer can be passed through an analog signal interface, PWM (full name pulse width modulation in Chinese, full name Pulse Width Modulation in English), of course, other peripheral interfaces such as 422 interface, 485 interface, SPI interface, 232 interface, I 2 The C interface is connected to the processor.

[0027] In step S102, a satellite signal receiving module is used to receive navigation satellite signals.

[0028] The navigation satellite signal includes positioning information, GPS clock, Doppler frequency shift information and so on. ...

Embodiment 2

[0037] figure 2 The implementation process of meteorological data measurement by the radiosonde provided by the second embodiment of the present invention is detailed as follows:

[0038] In step S201, the accelerometer installed on the radiosonde is used to measure the acceleration signal of the radiosonde.

[0039] In step S202, a satellite signal receiving module is used to receive navigation satellite signals.

[0040] In step S203, the gyroscope installed on the radiosonde is used to measure the attitude angular velocity information.

[0041] The gyroscope, which can be a micromechanical gyroscope, is small in size and weight, and meets the requirements for installation in a radiosonde.

[0042] Through the angular velocity information measured by the gyroscope, the swing information of the radiosonde relative to the sounding ball can be obtained, which can be used to eliminate the wind speed measurement error caused by the pendulum movement of the radiosonde relative to the sound...

Embodiment 3

[0050] image 3 It is a schematic diagram of the structure of a radiosonde for measuring meteorological data provided by the third embodiment of the present invention. The details are as follows:

[0051] The radiosonde 300 according to the embodiment of the present invention includes an accelerometer 301, a satellite signal receiving module 302, a processor 303, a data modulation and coding module 304, and a radio transmitter 305. The accelerometer 301, the satellite signal receiving module 302 and the The processor 303 is connected. The processor 303 receives the acceleration data obtained by the accelerometer 301 and the navigation satellite signal received by the satellite signal receiving module 302. The processor 303 is connected to the data modulation and encoding module 304 and transmits the received acceleration data. Perform data modulation and coding with the navigation satellite signal, and send the modulated and coded signal to the ground receiving device via the rad...

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Abstract

The present invention is applicable to the field of meteorological parameter measurement, and provides a radiosonde and a method for measuring meteorological data thereof, the method comprising: using a temperature sensor, a humidity sensor, and an air pressure sensor installed on the radiosonde to measure the temperature of the atmosphere , humidity and pressure parameters; use the accelerometer to measure the acceleration of the radiosonde; use the navigation satellite signal receiving module to receive the navigation satellite signal; carry out data encoding and modulation on the measurement data, and transmit it to the ground receiving equipment via the radio transmitter; The ground receiving device processes the received measurement data and calculates the current atmospheric temperature, humidity, pressure, wind speed and wind direction parameter values. Even when the navigation satellite signal receiving module of the radiosonde loses the satellite signal, the invention can calculate the wind speed and wind direction according to the measured value of the accelerometer.

Description

Technical field [0001] The invention belongs to the field of meteorological data measurement, and in particular relates to a radiosonde and a method for measuring meteorological data. Background technique [0002] A radiosonde is an instrument carried by a balloon. The balloon carries a sensor for measuring one or several meteorological variables. The radiosonde passes through the atmosphere and transmits the detection signal to the ground observation station by means of a radio transmitter, and the corresponding meteorological parameters of each altitude are obtained through the conversion processing of the ground observation station. [0003] At present, the temperature, humidity, and pressure parameters are generally obtained through the detection of sensors on the radiosonde, and the measurement methods of air wind speed and direction include weather detection radar, radio theodolite, radio navigation, optical wind theodolite and wind measurement based on satellite navigation p...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): G01W1/08
CPCG01W1/08
Inventor黄旭王刚
OwnerAEROSPACE DONGFANGHONG DEV LTD