Greenhouse ventilation control device and control system thereof

Abstract

The invention relates to a greenhouse ventilation control device and a control system of the greenhouse ventilation control device. The greenhouse ventilation control device comprises a transmission and a motor connected with the transmission. An output shaft of the transmission is provided with two driving wheels which are provided with matched driving media, and the two transmission media are located on the two sides of the output shaft. The control system comprises a first MCU, a second MCU, two temperature sensors and a motor drive module, wherein the first MCU is in electric connection with the second MCU, one temperature sensor is in electric connection with the first MCU, the other temperature sensor is in electric connection with the second MCU, and the motor drive module is in electric connection with the first MCU. The greenhouse ventilation control device has the advantages of being balanced in stress, capable of saving time and labor and low in loss. The control system has diversified functions and is simple in operation and convenient to use.

Description

technical field [0001] The invention relates to a device for agricultural greenhouses, in particular to a greenhouse ventilation control device and a control system thereof. Background technique [0002] Temperature is particularly important for greenhouse vegetable production. At present, vegetable farmers mainly rely on controlling the opening width of the air outlet to adjust the temperature in the greenhouse. There are two main control methods: one is manual control: the temperature is difficult to accurately control, and the temperature in the greenhouse changes greatly, which is unfavorable. Vegetable growth is labor intensive and increases production costs; the second is mechanical automatic control, and there are many defects in the existing mechanical automatic control blower: [0003] 1. One-way force: In the design, a sprocket is used to drive the chain to pull the multiple ropes of the vent from one side. The host must be installed at one end, so that the transmi...

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Problems solved by technology

[0002] Temperature is particularly important for greenhouse vegetable production. At present, vegetable farmers mainly rely on controlling the opening width of the air outlet to adjust the temperature in the greenhouse. There are two main control methods: one is manual control: the temperature is difficult to accurately control, and the temperature in the greenhouse changes greatly, which is unfavorable. Vegetable growth is labor intensive and increases production costs; the second is mechanical automatic control, and there are many defects in the existing mechanical automatic control blower:

[0003] 1. One-way force: In the design, a sprocket is used to drive the chain to pull the multiple ropes of the vent from one side. The host must be installed at one end, so that the transmission shaft of the gearbox will bear the huge lateral pulling force transmitted by the sprocket. The friction force of the bearing increases and the power loss increases. This will cause firstly the life of the bearing to be shortened; secondly, the power of the main engine is not enough, and the long shed cannot be opened. A greenhouse of about 100 meters needs 3-4 main engines, and the installation workload is large. It is labor-intensive and time-consuming; the third is that the pillars of the greenhouse must bear huge tension and need to be reinforced with ground anchors

[0004] 2. Poor security, specifically manifested in:

[0005]①Temperature detection: A single temperature sensor is used without protective measures, and temperature inaccuracy, sunlight interference, sensor failure and other phenomena often occur, resulting in poor control accuracy and even errors. action

[0010]⑥When the power failure requires manual opening and closing of the vent, the blower cannot be easily separated from the vent rope; if it is not detached, the ventilation cannot be opened and closed with the crank If it is disengaged, the two ends of the chain will fall, and the position sensor will be displaced when the power is turned on again. It is necessary to readjust the chain and sensor before it can work normally.

[0011] 3. The operation is difficult:

[0012] The parameter setting is complex (the panel button needs to be pressed multiple times or send a text message to set) and there is no voice prompt, which is difficult for vegetable farmers to master and use

[0013] 4. Single function:

[0014]① No "close in case of rain" function: When it rains, vegetable growers have to rush to the greenhouse to close the vents in the rain, which often wets the clothes and damages the vegetables. Automatic closing of rain vents is a long-awaited feature

[0015]② No "manual control" function: the opening or closing of the vent can only be controlled by temperature, especially when doing heavy manual farm work in the shed, due to high temperature unable to work

[0016]③No "anti-theft" function: the hard-working vegetables are often looted by thieves overnight, and the vegetable farmers suffer great economic and spiritual losses and injuries

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