Radiosonde and weather data measuring method thereof

A radiosonde and radio technology, applied in the direction of instruments, etc., can solve the problem of uncertain wind speed, wind direction, etc., and achieve the effect of high measurement accuracy

Active Publication Date: 2014-12-31
AEROSPACE DONGFANGHONG DEV LTD
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  • 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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  • Radiosonde and weather data measuring method thereof

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Embodiment 1

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

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

[0025] The accelerometer may be a micromachined accelerometer.

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

[0027] In step S102, use the satellite signal receiving module to receive navigation satellite signals.

[0028] The navigation satellite signal includes positioning information, GPS clock, Doppler fre...

Embodiment 2

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

[0038] In step S201, the acceleration signal of the radiosonde is measured using an accelerometer installed on the radiosonde.

[0039] In step S202, use the satellite signal receiving module to receive navigation satellite signals.

[0040] In step S203, attitude angular velocity information is measured using a gyroscope mounted on the radiosonde.

[0041] The gyroscope may be a micromechanical gyroscope, which has a small volume and weight and meets the requirements for being installed in a radiosonde.

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

Embodiment 3

[0050] image 3 A schematic structural diagram of a radiosonde for measuring meteorological data provided by the third embodiment of the present invention is described in detail as follows:

[0051] The radiosonde 300 described in the embodiment of the present invention includes an accelerometer 301, a satellite signal receiving module 302, a processor 303, a data modulation and encoding module 304, and a radio transmitter 305. The accelerometer 301, the satellite signal receiving module 302 and the The processor 303 is connected, and the acceleration data obtained by the accelerometer 301 and the navigation satellite signal received by the satellite signal receiving module 302 are received by the processor 303, and the processor 303 is connected to the data modulation encoding module 304 and 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 radi...

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Abstract

The invention is applicable to the field of weather parameter measurement and provides a radiosonde and a weather data measuring method thereof. The method includes: using a temperature sensor, a humidity sensor and a barometric sensor installed on the radiosonde to measure atmospheric temperature, humidity and pressure parameters; using an accelerometer to measure acceleration of the radiosonde; using a navigation satellite signal receiving module to receive a navigation satellite signal; subjecting measurement data to data encoding and modulating, and using a radio transmitter to transmit the data to a ground receiving device; using the ground receiving device to calculate current atmospheric temperature, humidity, pressure, wind speed and wind direction parameters according to the received data. The radiosonde and the weather data measuring method thereof have the advantages that the wind speed and wind direction can be calculated according to measurements of the accelerometer even when the navigation satellite signal receiving module of the radiosonde loses satellite signals.

Description

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

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01W1/08
CPCG01W1/08
Inventor 黄旭王刚
Owner AEROSPACE DONGFANGHONG DEV LTD
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