Internet of things-based frequency error correction type wireless signal processing system

Abstract

The invention discloses an Internet of things-based frequency error correction type wireless signal processing system. The system is characterized in that the system is mainly composed of a processing chip U, a triode VT4, a wireless signal receiver A, a polar capacitor C10, a diode D6, a voltage stabilizing diode D5, a frequency error correction circuit, a signal receiving and filtering circuit, a triode bias amplification circuit, a signal level adjustment circuit and the like, wherein the triode bias amplification circuit is connected in series between the signal receiving and filtering circuit and the processing chip U, and the signal level adjustment circuit is connected with the negative pole of a polar capacitor C11 as well as the OUT pin and G Pin of the processing chip U. The system of the invention can suppress or eliminate interference signals in received electric signals and adjust the duty ratio of rectangular wave signals of digital signal frequency converted by the processing chip U, so that the electric level of outputted digital signals can be kept stable, and therefore, the accuracy of the signal processing of the system of the invention can be improved.

Description

technical field [0001] The invention relates to the field of automatic control, in particular to a frequency error correction type wireless signal processing system based on the Internet of Things. Background technique [0002] The application of modern agricultural technology has brought huge economic, social and ecological benefits to the society. With the development of society, people's awareness of water saving is gradually increasing. In order to achieve the purpose of water saving, people usually use the agricultural Internet of Things to manage the irrigation of crops, so as to improve the efficiency of irrigation water and the effect of irrigation; Humidity sensor, wireless signal acquisition system, wireless signal processing system, wireless control system, video surveillance system and automatic sprinkler system are composed of the agricultural Internet of Things; the wireless control system in the agricultural Internet of Things is transmitted through the wirele...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defect of low signal processing accuracy in the processing of received signals in the existing wireless signal processing system of the agricultural Internet of Things, and to provide a frequency error correction type wireless signal processing system based on the Internet of Things

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