CONTROL SYSTEM AND METHOD OF PLASTIC GREENHOUSE MULTI-LAYER SUNSHADE FILM WITH ADJUSTABLE SHADING RATE

Title:

CONTROL SYSTEM AND METHOD OF PLASTIC GREENHOUSE MULTI-LAYER SUNSHADE FILM WITH ADJUSTABLE SHADING RATE

Document Type and Number:

WIPO Patent Application WO/2019/137034

Kind Code:

A1

Abstract:

Provided are control system and method of a plastic greenhouse multi-layer sunshade film with an adjustable shading rate, comprising a sunshade film (12) that is covered on a plastic greenhouse (19), the sunshade film (12) consists of upper, middle and lower layers, the upper layer film (28) is a fully-transparent thin film, the middle layer film (29) and the lower layer film (30) are thin films where printing points are printed, and the printing points of the middle layer film (29) and the printing points of the lower layer film (30) are staggered laid, a sealed upper air cavity (26) is formed between the upper layer film (28) and the middle layer film (29), and a sealed lower air cavity (27) is formed between the middle layer film (29) and the lower layer film (30).

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Inventors:

WANG XINZHONG (CN)
LI LIANGLIANG (CN)

Application Number:

PCT/CN2018/104540

Publication Date:

July 18, 2019

Filing Date:

September 07, 2018

Export Citation:

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Assignee:

UNIV JIANGSU (CN)

International Classes:

A01G9/22

Foreign References:

CN108370773A	2018-08-07
CN204090650U	2015-01-14
CN2537210Y	2003-02-26
JP2007330121A	2007-12-27
US4290242A	1981-09-22

Attorney, Agent or Firm:

JW IP LAW FIRM (CN)

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