Signal-filtering greenhouse temperature monitoring system based on internet of things

Abstract

The invention discloses a signal filtering greenhouse temperature monitoring system based on 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 system It consists of a substation microcontroller, a buzzer connected to the substation microcontroller, a first wireless transmission module, a signal processing unit, a refrigerator and an electric heater, and a temperature sensor connected to the signal processing unit; the master station The system is composed of the main station single-chip microcomputer, data storage and display which are respectively connected with the main station single-chip computer. The signal collected by the substation system of the present invention is sent to the main station system through the wireless network without connecting through lines, so that the whole monitoring system is simpler and the manufacturing cost is lower. 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 automation control, in particular to a signal filtering 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 inventio...

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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. Filter type greenhouse temperature monitoring system

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