Greenhouse light amount control apparatus and method

A light quantity control and greenhouse technology, applied in the direction of light control, non-electric variable control, control/adjustment system, etc., can solve the power waste of fill light, increase the workload of cooling system, and can not achieve on-demand and quantity fill light And other problems, to achieve the effect of precise light supplement, energy saving, and increase in production

Inactive Publication Date: 2017-05-10
上海芯智侬实业有限公司
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Problems solved by technology

However, at present, the supplementary light in traditional greenhouses is blind or empirical, and cannot realize the online analysis and processing of the illuminance inside the greenhouse.
Although some greenhouses have begun to use illuminance sensors to detect illuminance, since the detection principle of illuminance is defined based on the structure of the human eye, it is impossible t

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  • Greenhouse light amount control apparatus and method
  • Greenhouse light amount control apparatus and method

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Embodiment Construction

[0021] In order to further illustrate the essence of the present invention, the specific embodiments of the present invention are described as follows in conjunction with the accompanying drawings.

[0022] Based on the "accumulated light" theory, the present invention proposes a total light control device that can detect and calculate the total amount of light quanta absorbed by plants during the growth cycle, so as to solve the problem that the existing technology cannot perform real-time illumination according to the optimal total light amount for crop growth. issue of compensation.

[0023] Such as figure 1 As shown, a total light control device for a greenhouse includes: a PLC controller 1, an optical quantum sensor 2 connected to the PLC controller 1, an operation display 3, a first magnetic switch 4 and a second magnetic switch 5, The first magnetically controlled switch 4 and the second magnetically controlled switch 5 are respectively connected to the control circuit...

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Abstract

The invention discloses a greenhouse light amount control apparatus. The apparatus is characterized by comprising a PLC, and a light quantum sensor, an operating display, a first magnetron switch and a second magnetron switch that are connected with the PLC, wherein the first magnetron switch and the second magnetron switch are connected with a sunshade net control circuit and a light supplement lamp control circuit of a greenhouse respectively, and the PLC controls motions of the first magnetron switch and the second magnetron switch on the basis of signals provided by the light quantum sensor and the operating display. The light quantum sensor, the PLC, the magnetron switches and the like are combined organically, and a sunshade net and a light supplement lamp are controlled to be on and off according to data detected by the light quantum sensor. Therefore, light supplements are accurately provided to plants in all growing stages, the output is effectively increased, and energy is greatly saved. The invention also provides a light amount control method based on the above light amount control apparatus.

Description

technical field [0001] The invention relates to the technical field of lighting control in greenhouses, in particular to a total light control device and control method for greenhouses. Background technique [0002] Illumination is an important factor affecting plant growth. There is a saying in the industry that increasing light by 1% can increase yield by 1%. At the same time, this statement has also been verified to be effective in the actual professional large-scale planting in China, that is, Form a new light application concept "accumulated light", which is interpreted as the accumulation of light. The definition of accumulated light is that the total amount of light absorbed by plants throughout the growth cycle is constant, too little will affect the growth of plants, too much will have no effect on growth, and it is a waste of light. However, at present, the supplementary light in traditional greenhouses is blind or empirical, and cannot realize the online analysis...

Claims

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Application Information

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IPC IPC(8): G05D25/02
CPCG05D25/02
Inventor 张谊文
Owner 上海芯智侬实业有限公司
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