Title:
FEEDBACK COMPENSATION-BASED HUMIDITY SENSOR AND HUMIDITY DETECTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/082159
Kind Code:
A1
Abstract:
A feedback compensation-based humidity sensor, comprising: an analog switch (20), a parallel pin (40), a moisture-content detection chip (30) and a main controller (10); the sensor removes the need for circuits for soil moisture-content measurement and soil salt-content measurement to both be connected to a detection electrode, thereby making the structure simple and reducing power consumption of device detection, and to a certain extent reducing production costs, thus achieving time-sharing multiplexing of the parallel pin for salt-content and moisture-content detection; taking into considering the impact of soil salt-content on soil moisture-content, a soil moisture-content result of a final measurement will be more accurate, thus truly reflecting soil humidity and providing a basis for planting. Also disclosed is a soil-humidity detection system, and as said humidity sensor has the described technical effects, the detection system comprising the humidity sensor has corresponding technical effects.
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Inventors:
AN ZHU (CN)
LIN CHANGHONG (CN)
LIN CHANGHONG (CN)
Application Number:
PCT/CN2016/110968
Publication Date:
May 11, 2018
Filing Date:
December 20, 2016
Export Citation:
Assignee:
HHCC PLANT TECH CO LTD (CN)
LI QIN (CN)
LI QIN (CN)
International Classes:
G01N27/00
Foreign References:
CN205484177U | 2016-08-17 | |||
CN105717278A | 2016-06-29 | |||
CN101013097A | 2007-08-08 | |||
CN102997964A | 2013-03-27 | |||
US20040145379A1 | 2004-07-29 | |||
CN203191329U | 2013-09-11 |
Attorney, Agent or Firm:
BEIJING ZHUOTANG INTELLECTUAL PROPERTY CO., LTD. (CN)
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