A greenhouse roller blind based on the sun altitude angle and its fuzzy control method
A solar altitude angle and greenhouse technology, which is applied in greenhouse cultivation, control/regulation system, non-electric variable control, etc., can solve the problem of lack of automatic control system for roller blinds, achieve efficient and scientific control effects, and huge economic benefits , the effect of increasing crop yield
Active Publication Date: 2020-02-28
NORTHWEST A & F UNIV
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Problems solved by technology
[0004] The shutter machine lacks a reasonable automatic control system, and it is urgent to solve this problem
Method used
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Embodiment 1
[0054] The invention provides a fuzzy control system for greenhouse roller blinds based on the sun altitude angle, specifically as figure 1 and figure 2 As shown, it includes a fixed frame 1, a first winding device, a second winding device, a third winding device, a fourth winding device, a control module and several roller blind bodies 2;
[0055] There are at least two fixing frames 1, and the two fixing frames 1 are matched with the outer walls of the greenhouse 3, and the two fixing frames 1 are respectively arranged on the outer walls at two ends of the greenhouse 3. When the greenhouse is longer, the number of fixing frames 1 can be increased, and a plurality of fixing frames 1 can be evenly arranged on the outer wall of the greenhouse 3 . The two ends of the fixed frame 1 are respectively fixed on the ground at corresponding positions, and the body of the fixed frame 1 is fixedly connected by screws equal to the framework of the greenhouse 3 .
[0056] The first win...
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The invention provides a greenhouse roller blind based on solar elevation angle and a fuzzy control method thereof, which belongs to the technical field of agricultural automation. Two fixing frames are arranged on the outer walls of both ends of a greenhouse respectively. A first winding device is arranged on one end of the top of the greenhouse. A third winding device is arranged between the first winding device and the ground of one side of the greenhouse. Each winding device comprises a motor, a speed reducer and a roller blind shaft, and the motor and the speed reducer are fixed on fixingframe on one side. The output shaft of each motor and the output shaft of each speed reducer are connected through a transmission belt. One end of each roller blind shaft is fixedly connected with the output shaft of a speed reducer, and the other end of the roller blind shaft is rotatably connected with a fixing frame on the other side. The upper end of the roller blind body is fixed on the roller blind shafts. A control module comprises a temperature sensor, a light sensor, a data processing module, a main controller and a fuzzy controller. The roller blind uses the control signals of temperature, light and time. Through four winding devices, the roller blind part is rolled up or down. The greenhouse roller blind is conducive to the growth of crops in the greenhouse.
Description
technical field [0001] The invention belongs to the technical field of agricultural automation, and in particular relates to a greenhouse roller shutter based on a sun altitude angle and a fuzzy control method thereof. Background technique [0002] The solar greenhouse is a vegetable cultivation facility developed in the northern part of my country in the 1980s. It has the advantages of a plastic greenhouse and a heating greenhouse. Very good value for money. With the improvement of people's living standards in urban and rural areas, solar greenhouses for cultivating fresh vegetables and fruits in winter have developed rapidly and their scale has increased rapidly. In addition, planting off-season vegetables and fruits can obtain greater benefits, which also promotes the development of greenhouses. The rolling shutter machine is an important part of the greenhouse. The use of the electric rolling shutter machine prolongs the lighting time, increases the photosynthesis, and ...
Claims
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IPC IPC(8): G05D27/02A01G9/22
CPCA01G9/227G05D27/02Y02A40/25
Inventor 王丽娜胡劲宇
Owner NORTHWEST A & F UNIV