CN109000801B - Method and system for acquiring surface temperature of planar multimedia equipment - Google Patents
Method and system for acquiring surface temperature of planar multimedia equipment Download PDFInfo
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- CN109000801B CN109000801B CN201810456819.7A CN201810456819A CN109000801B CN 109000801 B CN109000801 B CN 109000801B CN 201810456819 A CN201810456819 A CN 201810456819A CN 109000801 B CN109000801 B CN 109000801B
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000011159 matrix material Substances 0.000 claims description 9
- 238000005259 measurement Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 239000003550 marker Substances 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 6
- 230000033228 biological regulation Effects 0.000 abstract description 3
- 238000011161 development Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0096—Radiation pyrometry, e.g. infrared or optical thermometry for measuring wires, electrical contacts or electronic systems
Abstract
The invention provides a method and a system for acquiring surface temperature of plane multimedia equipment. The invention also provides a system matched with the method. Supporting the above-described method. The invention can provide a control basis for power regulation of the equipment, improve the heat dissipation problem of the equipment, improve the user experience and prolong the service life of the equipment.
Description
Technical Field
The invention belongs to a surface temperature testing technology of planar multimedia equipment, and particularly relates to a method and a system for acquiring the surface temperature of planar multimedia equipment.
Background
The application range of planar multimedia devices represented by mobile phones and tablet computers is wider and wider, and the planar multimedia devices have penetrated into the aspects of work and life of people. With the rapid development of semiconductor and lithium battery technologies, the integration level of the planar multimedia device is higher and higher, the functions are more and more powerful, the problem that the heat dissipation environment of the device is rapidly deteriorated due to the overhigh heat capacity in a unit volume is brought while the faster experience is brought to people, the further development of the planar multimedia device is restricted, and the planar multimedia device becomes one of the major problems in the current multimedia device development process.
In order to solve the heat dissipation problem of the planar multimedia equipment, on one hand, the structure of the equipment needs to be reasonably designed, so that the equipment has good heat dissipation conditions; on the other hand, the energy management of the equipment is required to be actively carried out by combining the working condition of the equipment, so that the heating condition of the equipment is controlled within an acceptable range. In order to realize active control of the heating condition of the equipment according to the working condition of the equipment, the premise is that the surface temperature condition of the equipment can be monitored in real time, the power of the equipment is adjusted according to the surface temperature condition, and the feedback control of the heating condition of the equipment is realized. However, due to the compactness requirement of the equipment design, it is not practical to arrange a large number of temperature measuring points on the measuring plane, and only a few temperature measuring resistors can be arranged on the measuring plane of the equipment, and the temperature distribution condition of the whole plane can be obtained according to the measured temperature values of the limited few points.
To solve this problem, the present invention proposes a method for obtaining the surface temperature of the device from a limited number of measurement point temperature values. According to the method, the distribution condition of the surface temperature of the equipment can be obtained through the real-time temperature value inversion of the plurality of measurement points, a control basis is provided for power adjustment of the equipment, the heat dissipation condition of the equipment can be effectively improved, the user experience is improved, and the service life of the equipment is prolonged.
Disclosure of Invention
In view of the above, the main objective of the present invention is to provide a method and system for acquiring a surface temperature of a flat multimedia device.
The technical scheme adopted by the invention is as follows:
a method for acquiring the surface temperature of a planar multimedia device comprises the following steps:
the method comprises the following steps that firstly, a rectangular plane on the surface of equipment is divided into a plurality of areas which comprise m rows and n rows, and m multiplied by n temperature points are formed;
secondly, selecting and marking a plurality of temperature points from the m multiplied by n temperature points, assuming that an integer a of points is provided, and taking the points as the installation positions of the temperature sensors;
thirdly, measuring the temperature of the surface of the equipment during working by adopting a thermal infrared imager at the engineering prototype stage, and recording the temperature value of each temperature point to form a surface temperature distribution matrix as follows;
fourthly, carrying out arithmetic average calculation on the temperature values of a mark points of the selected mark through the processor module to obtain the measured component T of the average thermal infrared imagera0，
Fifthly, mounting temperature sensors on a mark points of the mark of the equipment, measuring the temperature values of the mark points in real time, calculating the temperature values of the mark points through a processor module, and acquiring the measured temperature component T of the average real-time sensora，
Sixthly, measuring the temperature component T according to the mark point temperature average real-time sensor obtained by real-time measurementaAnd a temperature distribution matrix T obtained by measuring with an infrared thermometer at the engineering prototype stage0And obtaining the measured component T of the average thermal infrared imagera0Inversion meterCalculating to obtain a whole plane real-time temperature distribution matrix;
and seventhly, dividing the rectangular plane on the surface of the equipment into real-time temperatures in a plurality of areas, selecting an adjacent point from the m multiplied by n temperature points, and calculating by adopting a sliding scanning method.
The invention also provides a system for acquiring the surface temperature of the planar multimedia equipment,
in the stage of the engineering prototype,
a number of marker points are selected on the surface of the device,
setting a thermal infrared imager, measuring the temperature of the surface of the equipment during working, and acquiring the average thermal infrared imager measured component of each mark point;
a corresponding temperature sensor is arranged at each marking point,
setting a clock chip, setting a detection period T1 by using the clock chip,
the temperature sensor acquires real-time temperature data of the mark points according to a set time period T,
a D/A conversion module for converting the real-time temperature data into real-time analog data,
the filter chip is used for acquiring real-time analog data and reducing noise of the real-time analog data;
the processor module processes the noise-reduced real-time data to obtain an average real-time sensor measuring temperature component of each recording point;
and the upper computer respectively acquires the average thermal infrared imager measured component and the average real-time sensor measured temperature component, and performs single-point comparison on the data through the comparison module to acquire the real-time temperature of the surface of the equipment.
Preferably, the method for the processor module to obtain the measured component of the average thermal infrared imager or the measured temperature component of the average real-time sensor comprises the following steps:
the acquired noise-reduced data is subjected to a peak sliding scan at a time period T2,
a region where the average peak value is uniform is obtained,
the above-mentioned area is cut out,
calibrating all peak values according to a set numerical value interval to obtain calibrated peak values,
and calculating the average value to obtain the average sensor measuring temperature component or obtain the average real-time sensor measuring temperature component.
By adopting the invention, the real-time temperature of the surface of the plane multimedia equipment can be obtained by measuring the finite point temperature in real time and combining with the calibration measurement value of the surface temperature of the equipment in the engineering prototype stage. The power regulation device can provide a control basis for power regulation of equipment, improve the heat dissipation problem of the equipment, improve user experience and prolong the service life of the equipment.
Drawings
FIG. 1 is a schematic diagram of the method of the present invention;
FIG. 2 is a flow chart of a method of obtaining an average pickup sensor measured temperature component or obtaining an average real-time sensor measured temperature component in accordance with the present invention;
fig. 3 is a flowchart of a method for acquiring an area with a uniform average peak value by the sliding detection module according to the present invention.
Detailed Description
The present invention will now be described in detail with reference to the drawings and specific embodiments, wherein the exemplary embodiments and descriptions of the present invention are provided to explain the present invention without limiting the invention thereto.
Referring to fig. 1, the invention provides a method for acquiring a surface temperature of a planar multimedia device, comprising the following steps:
the method comprises the following steps that firstly, a rectangular plane on the surface of equipment is divided into a plurality of areas which comprise m rows and n rows, and m multiplied by n temperature points are formed;
secondly, selecting and marking a plurality of temperature points from the m multiplied by n temperature points, assuming that an integer a of points is provided, and taking the points as the installation positions of the temperature sensors;
thirdly, measuring the temperature of the surface of the equipment during working by adopting a thermal infrared imager at the engineering prototype stage, and recording the temperature value of each temperature point to form a surface temperature distribution matrix as follows;
fourthly, carrying out arithmetic average calculation on the temperature values of a mark points of the selected mark through the processor module to obtain the measured component T of the average thermal infrared imagera0，
Fifthly, mounting temperature sensors on a mark points of the mark of the equipment, measuring the temperature values of the mark points in real time, calculating the temperature values of the mark points through a processor module, and acquiring the measured temperature component T of the average real-time sensora，
Sixthly, measuring the temperature component T according to the mark point temperature average real-time sensor obtained by real-time measurementaAnd a temperature distribution matrix T obtained by measuring with an infrared thermometer at the engineering prototype stage0And obtaining the measured component T of the average thermal infrared imagera0Performing inversion calculation to obtain a whole plane real-time temperature distribution matrix;
and seventhly, dividing the rectangular plane on the surface of the equipment into real-time temperatures in a plurality of areas, selecting an adjacent point from the m multiplied by n temperature points, and calculating by adopting a sliding scanning method.
Referring to fig. 2, in the foregoing, the method for the processor module to obtain the measured temperature component of the goods-taking average sensor or obtain the measured temperature component of the average real-time sensor includes:
the acquired noise-reduced data is subjected to a peak sliding scan at a time period T2,
a region where the average peak value is uniform is obtained,
the above-mentioned area is cut out,
calibrating all peak values according to a set numerical value interval to obtain calibrated peak values,
and calculating the average value to obtain the average sensor measuring temperature component or the average pickup sensor measuring temperature component or the average real-time sensor measuring temperature component.
Referring to fig. 3, the method for acquiring the region with uniform average peak value by the sliding detection module includes:
during scanning, the value set under the coordinate corresponding to each peak value is obtained,
the region between the adjacent maximum peaks is obtained,
comparing the obtained regions, and obtaining the region with the largest scanning area as the region with uniform average peak value.
The invention also provides a system for acquiring the surface temperature of the planar multimedia equipment,
in the stage of the engineering prototype,
a number of marker points are selected on the surface of the device,
setting a thermal infrared imager, measuring the temperature of the surface of the equipment during working, and acquiring the average thermal infrared imager measured component of each mark point;
a corresponding temperature sensor is arranged at each marking point,
setting a clock chip, setting a detection period T1 by using the clock chip,
the temperature sensor acquires real-time temperature data of the mark points according to a set time period T,
a D/A conversion module for converting the real-time temperature data into real-time analog data,
the filter chip is used for acquiring real-time analog data and reducing noise of the real-time analog data;
and the processor module processes the noise-reduced real-time data to obtain the average real-time sensor measuring temperature component of each recording point.
Claims (2)
1. A method for acquiring surface temperature of a planar multimedia device is characterized in that,
the method comprises the following steps:
the method comprises the following steps that firstly, a rectangular plane on the surface of equipment is divided into a plurality of areas which comprise m rows and n rows, and m multiplied by n temperature points are formed;
secondly, selecting and marking a plurality of temperature points from the m multiplied by n temperature points, assuming that an integer a of points is provided, and taking the points as the installation positions of the temperature sensors;
thirdly, measuring the temperature of the surface of the equipment during working by adopting a thermal infrared imager at the engineering prototype stage, and recording the temperature value of each temperature point to form a surface temperature distribution matrix as follows;
fourthly, carrying out arithmetic average calculation on the temperature values of a mark points of the selected mark through the processor module to obtain the measured component T of the average thermal infrared imagera0，
Fifthly, mounting temperature sensors on a mark points of the mark of the equipment, measuring the temperature values of the mark points in real time, calculating the temperature values of the mark points through a processor module, and acquiring the measured temperature component T of the average real-time sensora，
Sixthly, measuring the temperature component T according to the mark point temperature average real-time sensor obtained by real-time measurementaTo do so byAnd a temperature distribution matrix T obtained by measuring with an infrared thermometer at the engineering prototype stage0And obtaining the average thermal infrared imager measured component Ta0Performing inversion calculation to obtain a whole plane real-time temperature distribution matrix;
and seventhly, dividing the rectangular plane on the surface of the equipment into real-time temperatures in a plurality of areas, selecting an adjacent point from the m multiplied by n temperature points, and calculating by adopting a sliding scanning method.
2. A system for acquiring the surface temperature of a planar multimedia device is characterized in that,
in the stage of the engineering prototype,
a number of marker points are selected on the surface of the device,
setting a thermal infrared imager, measuring the temperature of the surface of the equipment during working, and acquiring the average thermal infrared imager measured component of each mark point;
a corresponding temperature sensor is arranged at each marking point,
setting a clock chip, setting a detection period T1 by using the clock chip,
the temperature sensor acquires real-time temperature data of the mark points according to a set time period T,
a D/A conversion module for converting the real-time temperature data into real-time analog data,
the filter chip is used for acquiring real-time analog data and reducing noise of the real-time analog data;
the processor module processes the noise-reduced real-time data to obtain an average real-time sensor measuring temperature component of each recording point;
and the upper computer respectively acquires the average thermal infrared imager measured component and the average real-time sensor measured temperature component, and performs single-point comparison on the data through the comparison module to acquire the real-time temperature of the surface of the equipment.
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| CN205785530U (en) * | 2016-05-19 | 2016-12-07 | 韩华新能源（启东）有限公司 | Solar simulator assembly backboard temperature testing device |
| CN106790900A (en) * | 2017-01-09 | 2017-05-31 | 捷开通讯(深圳)有限公司 | A kind of mobile phone temp detection method and system |
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| US20110273404A1 (en) * | 2009-01-20 | 2011-11-10 | Mikihiro Noma | Liquid crystal display device |
| DE102010030928A1 (en) * | 2010-07-05 | 2012-01-05 | Robert Bosch Gmbh | Non-contact measurement of a mean surface temperature of a measuring range |
| US9667280B2 (en) * | 2010-09-24 | 2017-05-30 | Qualcomm Incorporated | Methods and apparatus for touch temperature management based on power dissipation history |
| CN105403318B (en) * | 2014-09-12 | 2019-04-05 | 深圳先进技术研究院 | A kind of method and system of surface multipoint temperature monitoring |
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| CN205785530U (en) * | 2016-05-19 | 2016-12-07 | 韩华新能源（启东）有限公司 | Solar simulator assembly backboard temperature testing device |
| CN106790900A (en) * | 2017-01-09 | 2017-05-31 | 捷开通讯(深圳)有限公司 | A kind of mobile phone temp detection method and system |
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