Heating smoking set calibration method and system

A calibration method and technology for smoking utensils, applied in tobacco and other directions, can solve the problems of difficulty in real-time detection of temperature values, detection accuracy can only reach ±2.5°C, delay in calculation process, etc., so as to reduce calculation delay, improve accuracy and reliability, and improve The effect of detection accuracy

Active Publication Date: 2021-12-03
SHENZHEN TOBACCO IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of temperature calculation requires more complicated calculations. Due to the poor computing power of the smoking set chip under the cost regulation factor, there is a delay in the calculation process, so it is difficult to detect the accurate temperature value in real time, and the detection accuracy can only reach ±2.5°C

Method used

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  • Heating smoking set calibration method and system
  • Heating smoking set calibration method and system
  • Heating smoking set calibration method and system

Examples

Experimental program
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Effect test

Embodiment 1

[0067] refer to image 3 , the method of the present embodiment includes a temperature measurement calibration step, and the temperature measurement calibration step includes:

[0068] S301: The control device determines multiple temperature values ​​at intervals of a fixed temperature gradient within the working temperature range of the smoking appliance. Specifically, the temperature value is an integer, and the fixed temperature gradient is 1°C. For example, the working temperature range of the smoking appliance is 200-400 °C, the multiple temperature values ​​are: 200, 201, 202, ..., 398, 399, 400 °C.

[0069] S302: Taking each temperature value as the specified temperature in turn to perform a temperature calibration operation to obtain a pressure drop ratio corresponding to each temperature value;

[0070] S303: Use the obtained temperature values ​​and their corresponding pressure drop ratios to form a temperature comparison table and store them in the smoking applianc...

Embodiment 2

[0077] refer to Figure 4 , the method of the present embodiment also includes a temperature measurement and calibration step, and the temperature measurement and calibration step includes:

[0078] S401: The control device selects several temperature values ​​within the working temperature range of the smoking appliance, and sequentially takes each temperature value as a specified temperature to perform a temperature calibration operation to obtain a pressure drop ratio corresponding to each temperature value. Specifically, the several temperature values ​​are integers.

[0079] Wherein, the temperature calibration operation described in S401 includes:

[0080] 1) Start the infrared thermal imaging thermometer to collect the thermal image data of the smoking set in real time;

[0081] 2) After performing image processing on the thermal image data collected in real time, the temperature value of the smoking set is determined. Specifically, after image processing on the therm...

Embodiment 3

[0100] When the smoking appliance is started and heated to the preset working temperature, the user can suck the cigarette. When the suction action occurs, the external air flows through the cigarette and the heating device through the air passage of the smoking appliance. Due to the cooling effect of the airflow, the cigarette The heat of the branch and the heating device is taken away by the gas flowing through it, causing the temperature of the heating device to drop, and the TCR value corresponding to the temperature drop of the heating device changes, which is finally reflected in the change of the V1 / VL value detected by the smoking appliance. As mentioned above, the present invention can accurately measure the temperature, and the MCU detects that the temperature drop of the smoking appliance exceeds the preset temperature difference (2°C) and the duration exceeds a certain preset value in the preset time length range (300-800ms) , it is determined that a puff has occurr...

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Abstract

The invention discloses a heating smoking set calibration method and system. The smoking set is used for obtaining the voltage drop of a sampling resistor and the voltage drop of a heating device during temperature measurement, calculating the voltage drop ratio, and finding out the smoking set temperature corresponding to the voltage drop ratio from a pre-stored temperature comparison table through table look-up. According to the invention, the smoking set directly locks the temperature through a table look-up mode, so that calculation delay is reduced, and the detection precision is improved; the temperature comparison table has great influence on a temperature checking result, so that in order to ensure the accuracy of the result, the temperature comparison table is calibrated so as to greatly improve the precision and the reliability of the temperature measurement result; and the calibration of the suction capacity is achieved.

Description

technical field [0001] The invention relates to the technical field of tobacco products, in particular to a method and system for calibrating heating smoking appliances. Background technique [0002] The temperature control of heated smoking appliances has a great influence on consumers' smoking experience, and the accuracy and stability of temperature control is the core of smoking appliance control. In addition, the user's number of puffs, puff duration, puff interval, puff volume and other parameter information can provide relevant parameter information for precise control of the smoking appliance. [0003] The current temperature control strategy for smoking utensils is mostly to detect the change of the resistance value of the heating element, calculate the temperature of the heating element according to the temperature resistance relationship of the heating element, and then compare it with the set target temperature, and control the temperature of the heating unit thr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24F40/57A24F40/80
CPCA24F40/57A24F40/80
Inventor 吉雄王加深谢涛王冲畅晓渊吕乔苏凯赵超高安生
Owner SHENZHEN TOBACCO IND
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