A remote radiosonde based on Beidou navigation system

A Beidou navigation system and radiosonde technology, applied in the field of meteorological radiosonde, can solve problems such as the inability to realize remote data transmission, and achieve the effect of improving communication efficiency

Active Publication Date: 2015-06-10
湖北航天飞行器研究所
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Problems solved by technology

The transmitting frequency of the multi-frequency radiosonde is located at 400.15-406MHz, and each radiosonde occupies a bandwidth of 20kHz in the special frequency band 400.15-406MHz for meteorological sounding, all of which use radio frequency bands for data transmission, and are only suitable for short-distance Transmission, unable to achieve remote data transmission

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  • A remote radiosonde based on Beidou navigation system
  • A remote radiosonde based on Beidou navigation system
  • A remote radiosonde based on Beidou navigation system

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Embodiment Construction

[0018] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] Such as figure 1 As shown, the radiosonde of this embodiment includes a sensor module, a data acquisition module, a satellite receiving module, a main control module and a Beidou satellite communication module.

[0020] The sensor module is used to sense changes in atmospheric parameters and convert changes in atmospheric parameters into electrical signals. It includes temperature sensors, humidity sensors and pressure sensors.

[0021] The principle of sensor measurement is as figure 2 As shown, firstly, the changes in resistance and capacitance measured by the temperature, humidity and air pressure sensor probes are converted into changes in voltage or frequency. These changes are all analog quantities, which are converted into digital quantities after small signal amplification and A / D conversion by the operational ampli...

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Abstract

A remote radiosonde based on the Beidou navigation system, comprising: a sensor module for changes in sensitive atmospheric parameters; a data acquisition module for collecting electrical signals output by the sensor module; a satellite receiving module for receiving satellite positioning probes through an antenna The position information and time information of the air instrument; the main control module receives the data output by the data acquisition module and performs A / D sampling control on the data, and simultaneously collects the position information and time information output by the satellite receiving module, and outputs after digital encoding; The Beidou satellite communication module receives the data output by the main control module and transmits it to the Beidou navigation satellite by SMS communication, and then forwards the data packet to the ground station by SMS communication to obtain meteorological data. The invention adopts a new satellite navigation frequency band, which is suitable for long-distance data transmission. The short message communication can convey 120 Chinese characters at a time, and the data measured by the radiosonde multiple times can be composed into one frame for transmission, so as to improve communication efficiency.

Description

technical field [0001] The invention belongs to the technical field of meteorological radiosondes, and specifically relates to a radiosonde based on a Beidou navigation system, which is used for collecting typhoon meteorological data such as atmospheric temperature, humidity, pressure and wind speed. Background technique [0002] The radiosonde system is still the most basic and most commonly used means in the field of upper-air meteorological detection, providing basic atmospheric state information for weather forecasting, climate analysis, meteorological research and operational services. The wind measurement based on the navigation satellite system has high precision, simple ground system, and easy operation, and has become the mainstream of radio upper-air meteorological detection in the world today. [0003] A multi-channel meteorological sounding system in the prior art is composed of a radiosonde, a receiving antenna, a multi-channel receiver and a data acquisition an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01W1/08G01W1/02
Inventor 吴丹雷明李国兰叶雷吴迪凡邹勇波
Owner 湖北航天飞行器研究所
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