Title:
INFRARED SELF-IDENTIFICATION LIQUID LEVEL CONTROL AND ULTRALOW WATER LEVEL CONTROL APPARATUS
Document Type and Number:
WIPO Patent Application WO/2020/258437
Kind Code:
A1
Abstract:
Disclosed is an infrared self-identification liquid level control and ultralow water level control apparatus, comprising a power source circuit provided with a sensor, a single-chip microcomputer control circuit, an analog quantity collection circuit, an output circuit, and an infrared decoding/encoding circuit, wherein the single-chip microcomputer control circuit is respectively connected to the analog quantity collection circuit, the output circuit, and the infrared decoding/encoding circuit, and the power source circuit is respectively connected to the analog quantity collection circuit and the output circuit. By means of the method, the infrared self-identification liquid level control and ultralow water level control apparatus provided in the present invention uses non-contact measurement, and a circuit part is not in a direct contact with a measured object, such that circuit devices are prevented from being damaged due to external influences; a water level is measured by means of refraction and reflection principles of infrared light, and water quality is not required, such that the apparatus is suitable for varied water quality; and the water level is determined by means of a current, such that a water pump is prevented from being idle for a long time, and the service life of the apparatus is long.
Inventors:
WANG XIAN (CN)
MA KE (CN)
MA KE (CN)
Application Number:
PCT/CN2019/098117
Publication Date:
December 30, 2020
Filing Date:
July 29, 2019
Export Citation:
Assignee:
GP ENTPR CO LTD (CN)
International Classes:
G05D9/12; G01F23/292
Foreign References:
| CN205861161U | 2017-01-04 | |||
| CN103089659A | 2013-05-08 | |||
| CN208075190U | 2018-11-09 | |||
| JPS5252664A | 1977-04-27 |
Attorney, Agent or Firm:
SUZHOU GROUNZE INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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