Unlock instant, AI-driven research and patent intelligence for your innovation.

Calibration method of carbon dioxide sensor for air conditioner fresh air system

A carbon dioxide and calibration method technology, which is applied to the structural details of gas analyzers, instruments, scientific instruments, etc., and can solve the problems of inaccurate detection results of carbon dioxide sensors.

Active Publication Date: 2019-08-16
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
View PDF9 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the above-mentioned problems in the prior art, that is, in order to solve the problem of inaccurate detection results of the carbon dioxide sensor of the existing air-conditioning fresh air system, the present invention provides a calibration method for the carbon dioxide sensor of the air-conditioning fresh air system, the carbon dioxide sensor It is used to detect the concentration value of carbon dioxide in the indoor air; the calibration method includes the following steps:

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Calibration method of carbon dioxide sensor for air conditioner fresh air system

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0038] In the first embodiment:

[0039] Corresponding to step S100, the carbon dioxide sensor detects the concentration value of carbon dioxide once at a plurality of specific moments in each preset number of days. Preferably, the preset number of days is 7 days, and the intervals between the multiple specific moments are 1 minute. Alternatively, those skilled in the art can also set the preset number of days to other arbitrary values ​​according to actual needs, such as 1 day, 3 days, 15 days, etc.; set the intervals between the multiple specific moments to other arbitrary values , such as 3 minutes, 30 minutes, 45 minutes, etc.

[0040] Corresponding to step S200, all concentration values ​​detected by the carbon dioxide sensor in 7 days are compared.

[0041] Corresponding to step S300, the one with the smallest value among all the concentration values ​​is determined as the calibration base point.

[0042] Corresponding to step S400, the calibration base point is updat...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the technical field of air conditioner fresh air system control, and particularly provides a calibration method of a carbon dioxide sensor for an air conditioner fresh air system, which aims to solve the problem that the detection result of the carbon dioxide sensor of the existing air conditioner fresh air system is inaccurate. To this end, the calibration method of the present invention comprises the following steps that the carbon dioxide sensor is used for respectively detecting the concentration value of the carbon dioxide at a plurality of specific moments; the detected plurality of concentration values are compared; a calibration base point is determined according to the comparison result; and the calibration base point is updated to a preset numerical value. According to the calibration method, the condition that the carbon dioxide sensor drifts seriously over time can be effectively avoided through the above-mentioned steps, and the accuracy of the detection result of the carbon dioxide sensor is effectively guaranteed.

Description

technical field [0001] The invention belongs to the technical field of air-conditioning fresh air system control, and specifically provides a calibration method for a carbon dioxide sensor of an air-conditioning fresh air system. Background technique [0002] The main function of the air-conditioning fresh air system is to realize the circulation and ventilation between the room air and the outdoor air, and to purify the air. The turbid air in the room is discharged to the outside through the air-conditioning fresh air system pipe to form an indoor and outdoor air pressure difference, completing the indoor and outdoor air exchange and refreshing the air. [0003] In order to avoid energy waste, the existing air-conditioning fresh air system is usually provided with a carbon dioxide sensor for detecting the concentration of carbon dioxide in the indoor air. Only when the indoor carbon dioxide concentration is greater than the set threshold, the fresh air system is turned on ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
CPCG01N33/0006G01N33/004Y02B30/70
Inventor 于洋
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD