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Spatial three-dimensional temperature field detection method, computer-readable storage medium, and smart home appliances

A three-dimensional temperature and three-dimensional detection technology, which is applied in the field of smart home appliances and space three-dimensional temperature field detection, can solve the problems of high cost, increase the temperature error of air conditioner detection, and use, and achieve the effect of high accuracy and good user experience

Inactive Publication Date: 2020-01-10
GREE ELECTRIC APPLIANCES INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional method is more accurate, but due to the need for a large number of thermocouples, the cost is extremely high, and it is usually limited to laboratory testing.
In addition, since the thermocouple array is a fixed hardware device, the covered space cannot be expanded, and the actual space will be occupied by the bracket for fixing the thermocouple, so this detection scheme cannot be used in products
For example, the Chinese patent application number 201510279063.X discloses a detection system and control method for a room stereoscopic temperature image, which specifically discloses the use of two plane temperature sensors to detect the temperature of two vertical planes and fuse them into a room stereo temperature. However, this solution has strict requirements on the location of the temperature sensor and is not suitable for actual products.
For example, the Chinese patent application number 201810583155.0 discloses a three-dimensional positioning method for infrared temperature measurement of large-scale pipelines, which specifically discloses the use of infrared and visible light binocular imaging systems to capture infrared thermal images and visible light images of the pipeline surface, and calculate the 3D model of the pipeline , in assigning the temperature value in the infrared image to the 3D model of the pipeline, but this patent is limited to the application of pipelines, and it is necessary to set coded artificial marking points on the surface of the pipeline, and the application of the patent has relatively large limitations
[0003] The temperature detection of traditional air conditioners only has an environmental temperature sensor inside the air conditioner, and the air temperature is detected at the air inlet of the air conditioner. The air conditioner uses the temperature detected at a single point as the temperature of the entire room for temperature control, and the temperature detection of the room is not accurate.
And because there is a certain distance between the installation location of the air conditioner and the user, the temperature detected by the temperature sensing package inside the air conditioner is quite different from the temperature near the user, which further increases the error of the air conditioner's detected temperature

Method used

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  • Spatial three-dimensional temperature field detection method, computer-readable storage medium, and smart home appliances
  • Spatial three-dimensional temperature field detection method, computer-readable storage medium, and smart home appliances
  • Spatial three-dimensional temperature field detection method, computer-readable storage medium, and smart home appliances

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Embodiment 1: A method for detecting a three-dimensional temperature field in space.

[0025] A spatial three-dimensional temperature field detection method, the spatial three-dimensional data is obtained by the spatial three-dimensional detection sensor, the two-dimensional plane temperature field data is obtained by the temperature sensor, the spatial three-dimensional data is combined with the two-dimensional plane temperature field data to calculate the temperature data of the space three-dimensional object surface , and then estimate the spatial temperature field; the spatial three-dimensional data includes plane two-dimensional data and depth data, the depth data is the distance information from the point to the sensor, and the spatial depth data is the distance information from each point in the space to the sensor; the plane two The two-dimensional data is mainly coordinate values. The two-dimensional coordinates obtained by using the space correspond to the two-...

Embodiment 2

[0032] Embodiment 2: A method for detecting a three-dimensional temperature field in space.

[0033] The difference from Example 1 is that the depth data has a higher resolution than the two-dimensional plane temperature data. The depth data is 320*240, and the two-dimensional plane temperature data is 32*24. The processing process is as follows:

[0034] (1) if Figure 4 Shown, plane temperature distance calibration: T 11 =Ta1+αA1, T 12 =Ta1+αA2, (α is the distance calibration coefficient, that is, to compensate the detected plane temperature value according to the distance of the space point);

[0035](2) Depth data and calibrated plane temperature data are combined into temperature data with distance information:

[0036] [(A1, T 11 );(A2,T 12 );……], A1 is the depth data value (ie distance) of the point, T 11 is the calibrated temperature of the point; A2 is the depth data value (ie distance) of the point, T 12 the calibrated temperature for that point;

[0037] (3)...

Embodiment 3

[0039] Embodiment 3: A method for detecting a three-dimensional temperature field in space.

[0040] The difference from Example 1 is that the depth data has a lower resolution than the two-dimensional plane temperature data. The depth data is 320*240, and the two-dimensional plane temperature data is 640*480. The processing process is as follows:

[0041] (1) if Figure 5 As shown, temperature point data fusion and distance calibration: Take the temperature value contained in the depth data value for averaging (taking M*N points as an example):

[0042] T D1 = (T A1 +T A2 +T B1 ,+T B2 +…+T MN ) / (M*N),

[0043] T D1’ = T D1 +αD1 (α is the distance calibration coefficient, that is, to compensate the detected plane temperature value according to the distance of the space point);

[0044] (2) Depth data and calibrated plane temperature data are combined into temperature data with distance information:

[0045] (D1, T D1’ )D1 is the depth data value (i.e. distance) of ...

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Abstract

The invention provides a spatial three-dimensional temperature field detection method, a computer-readable storage medium, and smart home appliances, and the method comprises the following steps of obtaining related data including at least temperature data through the detection of a sensor, calculating depth data based on the related data, calculating the temperature data of the surface of the spatial three-dimensional object based on the depth data and temperature data, and estimating the spatial temperature field. The invention effectively solves the problem of traditional air-conditioning temperature detection, can detect the spatial three-dimensional temperature information in real time with high accuracy, and can automatically adjust the air conditioning modes based on temperature information to achieve a better user experience.

Description

technical field [0001] The invention relates to the technical field of temperature detection, in particular to a method for detecting a three-dimensional temperature field in space, a computer-readable storage medium and smart home appliances. Background technique [0002] The traditional three-dimensional temperature field detection method in space is to equidistantly arrange thermocouple arrays in three-dimensional space (X, Y, Z directions), and obtain the temperature value of each point in space through the temperature detected by the thermocouple array. Then through software interpolation calculation, the temperature field of the whole space is fitted and calculated. The traditional method is more accurate in detection, but due to the high cost of a large number of thermocouples, it is usually limited to laboratory testing. In addition, since the thermocouple array is a fixed hardware device, the covered space cannot be expanded, and the actual space will be occupied b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J5/00G01B11/00G01B11/24
CPCG01J5/00G01B11/00G01B11/24G01J5/485
Inventor 孔进亮华洪香刘佰兰
Owner GREE ELECTRIC APPLIANCES INC
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