Signal mixed processing type greenhouse temperature monitoring system based on Internet of Things technology

Abstract

The invention discloses a signal mixed processing type greenhouse temperature monitoring system based on the Internet of Things technology, which is characterized in that it is mainly composed of a substation system and a master station system connected to the substation system through a wireless network; the substation The system consists of a substation microcontroller, a buzzer connected to the substation microcontroller, a cycle frequency stabilization module, a signal processing unit, a refrigerator and an electric heater, a temperature sensor connected to the signal processing unit, and a cycle frequency stabilization module The connected first wireless transmission module is formed; the substation single-chip microcomputer is also connected with the first wireless transmission module; Keyboard and second-order filter circuit and so on. The second-order filter circuit of the present invention can filter the interference signal generated during the wireless transmission of the signal, so as to prevent the interference signal from affecting the control accuracy of the present invention.

Description

technical field [0001] The invention relates to the field of automatic control, in particular to a signal mixed processing type greenhouse temperature monitoring system based on Internet of Things technology. Background technique [0002] The growth of crops is closely related to temperature. At present, many vegetables are grown in greenhouses. For greenhouses, the most important management factor is temperature control. If the temperature is too low, the vegetables will freeze to death or stop growing. It is not conducive to the growth of vegetables, so in the process of vegetable cultivation, the temperature of the greenhouse must always be controlled within the range suitable for vegetable growth. However, at present, the temperature control of greenhouses mainly relies on manual control. This method of temperature control not only consumes a lot of manpower, but is also prone to errors; Promote widely. Contents of the invention [0003] The purpose of the present in...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the defects that the traditional greenhouse temperature relies on manual control, which requires a lot of manpower, and the traditional temperature control system is connected by lines, and its line laying is cumbersome and expensive, and provides a signal based on the Internet of Things technology. Mixed treatment greenhouse temperature monitoring system

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