A dynamic calibration method for smoke sensor in soot environment
A smoke sensor and dynamic calibration technology, applied to instruments and other directions, can solve the problems of inaccurate smoke volume data and affect the automatic control of intelligent range hoods, achieve real-time dynamic calibration and compensation, and eliminate adverse effects.
Active Publication Date: 2021-01-15
NINGBO FOTILE KITCHEN WARE CO LTD
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Problems solved by technology
The cooking fume environment in the kitchen is very complex and harsh. Because the smoke sensor is used for a long time in the fume environment, a large amount of fumes will be covered and accumulated on the surface of the smoke sensor, which will make the smoke data displayed by the smoke sensor inaccurate, which will seriously affect the smart range hood. automatic control of
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[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0028] Such as figure 1 As shown, the dynamic calibration method of the smoke sensor in the oil fume environment in this embodiment includes the following steps 1 to 7:
[0029] Step 1, set the reference smoke sensor for calibration and the smoke sensor to be calibrated; for example, the reference smoke sensor in this embodiment is marked as Sensor A , the smoke sensor to be calibrated is marked as Sensor B ;
[0030] Step 2, preset the required number of dynamic calibration time intervals, and set the sampling time interval values of the reference smoke sensor and the smoke sensor to be calibrated in each dynamic calibration time interval;
[0031] Specifically, mark the total number of preset dynamic calibration time intervals as N, and mark the nth dynamic calibration time interval value as ΔT n , dynamic calibration time interval △T ...
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The invention relates to a dynamic calibration method for a smoke sensor in an oil smoke environment. The dynamic calibration method comprises the steps of presetting a required number of dynamic calibration time intervals, setting sampling time interval values of the to-be-calibrated smoke sensor in the dynamic calibration time intervals, and obtaining a smoke data sequence collected in the dynamic calibration time intervals by the smoke sensor; in the dynamic calibration time intervals, obtaining air volume of the periphery of the to-be-calibrated smoke sensor at each moment and smoke flux of the to-be-calibrated smoke sensor in the dynamic calibration time intervals, and obtaining actual total smoke flux of the to-be-calibrated smoke sensor; presetting fitting relations between the actual total smoke flux and dynamic calibration compensation values, and obtaining the dynamic calibration compensation values of the to-be-calibrated smoke sensor in the dynamic calibration time intervals; and obtaining accurate smoke data values of the to-be-calibrated smoke sensor in the dynamic calibration time intervals according to the obtained dynamic compensation values. The real-time dynamiccalibration and compensation of readings of the smoke sensor are achieved, so that the adverse effect of oil smoke coverage on detection of the smoke sensor can be reduced or eliminated.
Description
technical field [0001] The invention relates to the field of intelligent kitchen electric equipment, in particular to a dynamic calibration method for a smoke sensor in a soot environment. Background technique [0002] With the improvement of living standards, people pay more and more attention to the quality of living environment and personal health. Kitchen fume is the main factor affecting the quality of the home environment, and the range hood has become a must for the home. [0003] With the rapid development of science and technology, range hoods are gradually becoming intelligent. Sensors are the senses of smart devices and are indispensable. Smoke sensors are one of the most widely used sensors for smart range hoods. The cooking fume environment in the kitchen is very complex and harsh. Since the smoke sensor is used for a long time in the fume environment, a large amount of fumes will be covered and accumulated on the surface of the smoke sensor, which will make th...
Claims
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IPC IPC(8): G01D18/00
Inventor 韩洋茅忠群诸永定陈斌德
Owner NINGBO FOTILE KITCHEN WARE CO LTD