Wind sensor anti-freezing control system of automatic meteorological station

Abstract

The invention discloses a wind sensor anti-freezing control system of an automatic meteorological station. The wind sensor anti-freezing control system of the automatic meteorological station is mainly composed of a single chip microcomputer, a communication interface circuit and an optoelectronic isolation driving circuit, wherein the communication interface circuit is connected with the single chip microcomputer. The communication interface circuit is connected with a parameter sampling circuit, the optoelectronic isolation driving circuit is connected with a heating circuit, the single chip microcomputer, the communication interface circuit and the optoelectronic isolation driving circuit are all connected with a power source management circuit, and the communication interface circuit and the parameter sampling circuit are further provided with a command control circuit. The wind sensor anti-freezing control system of the automatic meteorological station has the advantages that the heating circuit is installed inside a sensor, the wind flow field is not affected, mechanical abrasion influences do not exist, and the accuracy of observation data is not affected. The life expectancy and the period of the heating circuit is more than two years, the overhauling and maintenance can be carried out along with a re-testing period of the automatic meteorological station, and meanwhile a resistance heating wire device is easy to replace, maintain and overhaul and low in price.

Description

technical field [0001] The invention relates to antifreeze control, in particular to an antifreeze control system for a wind sensor of an automatic weather station. Background technique [0002] In countries or regions with low temperature, such as Finland and other countries, the wind sensors of automatic weather stations usually use heating devices with a power of ≤4W, and only consider the temperature index. The heating device heats the wind sensor and melts the freezing of rime and rime on the wind sensor, but the effect is not very satisfactory in the operation of the pilot station in our country. comprehensive. Some people have studied the freezing damage of rain, smog and rime on the wind sensor of automatic weather station. It is believed that the icing and freezing of wind sensor is the result of comprehensive factors such as temperature, humidity, wind speed and other meteorological conditions. The basic conditions and characteristics of severe icing are freezing...

AI Technical Summary

Problems solved by technology

[0002] In countries or regions with low temperature, such as Finland and other countries, the wind sensors of automatic weather stations usually use heating devices with a power of ≤4W, and only consider the temperature index. The heating device heats the wind sensor and melts the freezing of rime and rime on the wind sensor, but the effect is not very satisfactory in the operation of the pilot station in our country. comprehensive

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