CN211452611U - Temperature measuring device - Google Patents
Temperature measuring device Download PDFInfo
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- CN211452611U CN211452611U CN202020329559.XU CN202020329559U CN211452611U CN 211452611 U CN211452611 U CN 211452611U CN 202020329559 U CN202020329559 U CN 202020329559U CN 211452611 U CN211452611 U CN 211452611U
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- 238000001514 detection method Methods 0.000 claims abstract description 19
- 238000009529 body temperature measurement Methods 0.000 claims abstract description 18
- 230000006698 induction Effects 0.000 claims abstract description 8
- 238000004891 communication Methods 0.000 claims abstract description 7
- 238000001931 thermography Methods 0.000 claims description 16
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 238000005259 measurement Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000005855 radiation Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000000034 method Methods 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
Abstract
The application provides a temperature measurement device, includes: a calibration source module; the camera module is used for acquiring a live-action image and a thermal induction image of a target area where a target to be detected is located; one end of the connecting structure is connected to the camera module, and the other end of the connecting structure is used for mounting the calibration source module thereon, so that the calibration source module is positioned in the target area; and the main control module is in communication connection with the camera module and is used for calculating the temperature parameter of the target to be detected according to the live-action image and the thermal induction image. According to the embodiment of the application, the calibration source module is installed on the camera module through the connecting structure, the phenomenon that the calibration source module deviates when temperature calibration is carried out based on the calibration source module due to the fact that the distance of the calibration source module is too far can be avoided, and the accuracy of temperature detection can be improved.
Description
Technical Field
The application relates to the technical field of temperature detection, in particular to temperature measuring equipment.
Background
The existing temperature measurement method usually adopts a calibration source to assist temperature measurement. Common calibration sources are black body or bluetooth thermometers. Whether a black body or a thermometer is used as a calibration source, in order to avoid the shielding of the target to be detected, the calibration source is generally arranged at a certain distance in front of the lens of the camera module. And because the calibration source is far away from the lens, the actual temperature difference between the actual temperature and the temperature obtained by the temperature detection of the infrared camera is larger after the infrared rays emitted by the calibration source pass through the atmospheric scattering model. Therefore, the detection temperature of the target to be detected obtained by the temperature camera may deviate during calibration, resulting in poor accuracy of temperature detection.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the application is to provide a temperature measurement device, which can improve the accuracy of temperature detection.
The embodiment of the application provides a temperature measurement device, includes:
a calibration source module;
the camera module is used for acquiring a live-action image and a thermal induction image of a target area where a target to be detected is located;
one end of the connecting structure is connected to the camera module, and the other end of the connecting structure is used for mounting the calibration source module thereon, so that the calibration source module is positioned in the target area;
and the main control module is in communication connection with the camera module and is used for calculating the temperature parameter of the target to be detected according to the live-action image and the thermal induction image.
Optionally, in the temperature measuring apparatus according to this embodiment of the present application, the connecting structure includes a connecting seat and a connecting rod;
the connecting seat is fixedly arranged on the outer wall surface of the camera module, one end of the connecting rod is rotatably connected with the connecting seat, and the calibration source module is arranged at the other end of the connecting rod.
Optionally, in the temperature measuring apparatus according to this embodiment of the present application, a rotation surface of the connecting rod is parallel to an orientation of a live-action lens of the camera module.
Optionally, in the temperature measuring apparatus according to the embodiment of the present application, the connecting rod is a telescopic rod with an adjustable length.
Optionally, in the temperature measuring apparatus according to the embodiment of the present application, a locking structure for locking the connecting rod is provided on the connecting seat.
This application embodiment avoids this connecting rod to rotate at will through locking mechanism, can avoid this calibration source module's position to take place the mistake cheap to can improve the degree of accuracy that temperature detected.
Optionally, in the temperature measuring apparatus according to the embodiment of the present application, the camera module includes a live-action camera and a thermal imaging device;
the thermal imaging device is arranged on the outer wall of the live-action camera, and the thermal sensing head of the thermal imaging device and the live-action lens of the live-action camera face to the same side.
Optionally, in the temperature measuring apparatus according to this embodiment of the present application, the connection seat is a high resistance bearing.
This application embodiment avoids this connecting rod to rotate at will through high resistant bearing, can avoid this calibration source module's position to take place the mistake cheap to can improve the degree of accuracy that temperature detected.
Optionally, in the temperature measuring apparatus according to this embodiment of the application, the connecting seat and the thermal imaging device are disposed on the same outer wall surface of the live-action camera.
Optionally, in the temperature measurement apparatus according to this embodiment of the present application, the calibration source module includes a temperature sensor and an alumina coating layer for coating the temperature sensor;
the temperature sensor is in communication connection with the main control module so as to upload a temperature detection value of the temperature sensor to the main control module.
Optionally, in the temperature measurement device according to this embodiment of the present application, the calibration source module includes a blackbody calibration source.
According to the embodiment of the application, the calibration source module is installed on the camera module through the connecting structure, the phenomenon that the calibration source module deviates when temperature calibration is carried out based on the calibration source module due to the fact that the distance of the calibration source module is too far can be avoided, and the accuracy of temperature detection can be improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a temperature measuring apparatus according to an embodiment of the present disclosure;
fig. 2 is a schematic partial structural diagram of a temperature measurement device according to an embodiment of the present application.
Icon: 10-calibration source module, 20-camera module, 30-connecting structure, 21-live-action camera, 22-thermal imaging device, 31-connecting seat, 32-connecting rod, 33-locking mechanism and 100-target to be detected.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.
In the description of the present application, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the application usually place when using, and are only used for convenience in describing the present application and simplifying the description, but do not indicate or imply that the devices or elements that are referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
It should also be noted that, unless expressly stated or limited otherwise, the terms "disposed" and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a temperature measuring apparatus in some embodiments of the present application. The temperature measuring device includes: a calibration source module 10, a camera module 20, a connecting structure 30 and a main control module. One end of the connecting structure 30 is connected to the camera module 20, the calibration source module 10 is installed at the other end of the connecting structure 30, and the main control module is in communication connection with the camera module 20.
The camera module 20 is configured to collect a live-action image and a thermal sensing image of a target area where the target 100 to be detected is located; the other end of the connecting structure 30 is used to locate the calibration source module 10 in the target area, so that when the camera module 20 is acquiring a thermal map, i.e. a temperature map, of the target area, the thermal sensing information of the target to be detected and the calibration source module are acquired into a thermal map at the same time. The main control module is used for calculating the temperature parameter of the target to be detected according to the live-action image and the thermal induction image.
Wherein, this master control module detects the temperature that awaits measuring the target based on temperature image and live-action image belongs to prior art, briefly describes its principle below:
when the calibration source module is a blackbody calibration source: determining the measurement temperature of the target to be detected based on the live-action image and the temperature image; carrying out black body calibration source detection on the temperature image to obtain a detection result of the black body calibration source; the detection result comprises position information of the blackbody calibration source in the temperature image; determining the measurement temperature of the blackbody calibration source based on the detection result of the blackbody calibration source and the temperature image; and correcting the measured temperature of the target to be detected according to the measured temperature of the black body calibration source and the preset temperature of the black body calibration source, and taking the corrected temperature as the temperature measurement result of the target to be detected.
When the calibration source module is a temperature sensor: determining a first measurement temperature of a target to be detected and a second measurement temperature of a temperature sensor based on the live-action image and the temperature image; and obtaining the detection temperature of the temperature sensor based on the detection result of the temperature sensor, correcting the first measurement temperature based on the deviation between the detection temperature and the second detection temperature, and taking the corrected temperature as the temperature measurement result of the target to be detected.
According to the embodiment of the application, the calibration source module is installed on the camera module through the connecting structure, the phenomenon that the calibration source module deviates when temperature calibration is carried out based on the calibration source module due to the fact that the distance of the calibration source module is too far can be avoided, and the accuracy of temperature detection can be improved.
Specifically, in some embodiments, the calibration source module 10 includes a temperature sensor and an alumina coating for coating the temperature sensor; the temperature sensor is in communication connection with the main control module and used for uploading a temperature detection value of the temperature sensor to the main control module. The temperature sensor and the main control module can be connected in a wired or wireless manner, and the wireless connection can be, for example, a bluetooth connection, a zigbee connection, etc.
Alternatively, in some embodiments, the calibration source module 10 includes a blackbody calibration source. The black body is an ideal object in thermal radiation, has three characteristics of completely absorbing external radiation with any wavelength without any reflection under any condition, having an absorption ratio of 1 and completely absorbing incident radiation with any wavelength at any temperature, and can be regarded as a constant temperature body. For example, when the ambient temperature is low, the measured temperature obtained by the sensor when extracting the infrared data may be lower than the true temperature, or when the device is operated for a long time, the temperature of the device may be increased, so that the measured temperature is higher than the true temperature, which may cause the measured temperature of the device to be inaccurate, and when the black body is disposed in the image acquisition area of the thermal imaging camera, whether the measured temperature of the device has a temperature deviation may be determined by using the constant temperature characteristic of the black body.
In some embodiments, the camera module 20 includes a live-action camera 21 and a thermal imaging device 22; the thermal imaging device 22 is mounted on the outer wall of the live-action camera 21, and the thermal head 221 of the thermal imaging device 22 faces the same side as the live-action lens 211 of the live-action camera 21. The live-action camera 21 and the thermal imaging device 22 may be fixed together by bolts or adhesive.
In some embodiments, the connecting structure 30 includes a connecting seat 31 and a connecting rod 32. The connecting base 31 is fixedly disposed on an outer wall surface of the camera module 20, one end of the connecting rod 32 is rotatably connected to the connecting base 31, and the calibration source module 10 is fixedly disposed on the other end of the connecting rod 32.
Wherein, the rotation plane of the connecting rod 32 is parallel to the direction of the real lens 211 of the camera module 20. Therefore, the connecting rod 32 can be rotated to adjust the position of the calibration source module 10, so that the calibration source module 10 and the target 100 to be detected are located within a certain range, and the thermal imaging device 22 of the camera module 20 can thermally image the calibration source module 10 and the target 100 to be detected together, so that the calibration source module 10 and the target 100 to be detected appear in the same thermal induction diagram.
As shown in fig. 2, the connecting base 31 is further provided with a locking mechanism 33 for locking the connecting rod 32, and the locking mechanism 33 can lock the connecting rod 32 to prevent the connecting rod from rotating. The locking mechanism 33 may be a knob locking mechanism or a pressing type locking mechanism, which is prior art and need not be described in detail.
In some embodiments, the connecting rod 32 is a telescopic rod with adjustable length, which facilitates adjusting the position of the calibration source module 10 to improve the success rate of thermal sensing.
Wherein, the connecting base 31 is fixedly disposed on the outer wall of the live-action camera 21. The connecting seat 31 may be a bearing seat. Preferably, the connecting seat 31 is a high-resistance bearing, so that the connecting rod has a large resistance when rotating, and the connecting rod 32 is prevented from being disturbed or rotating mistakenly to cause recalibration, and the high-resistance bearing refers to a bearing with a large rotation resistance.
In some embodiments, the connecting base 31 and the thermal imaging device 22 are disposed on the same outer wall surface of the live-action camera 21, for example, a top wall.
The main control module can be an independent main control chip or can be integrated inside the camera module.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A temperature measurement device, comprising:
a calibration source module;
the camera module is used for acquiring a live-action image and a thermal induction image of a target area where a target to be detected is located;
one end of the connecting structure is connected to the camera module, and the other end of the connecting structure is used for mounting the calibration source module thereon, so that the calibration source module is positioned in the target area;
and the main control module is in communication connection with the camera module and is used for calculating the temperature parameter of the target to be detected according to the live-action image and the thermal induction image.
2. The temperature measurement device of claim 1, wherein the connection structure comprises a connection seat and a connection rod;
the connecting seat is fixedly arranged on the outer wall surface of the camera module, one end of the connecting rod is rotatably connected with the connecting seat, and the calibration source module is arranged at the other end of the connecting rod.
3. The temperature measurement device of claim 2, wherein the plane of rotation of the connecting rod is oriented parallel to a live view lens of the camera module.
4. The temperature measurement device of claim 2, wherein the connecting rod is a telescopic rod of adjustable length.
5. The temperature measuring apparatus according to claim 2, wherein a locking structure for locking the connecting rod is provided on the connecting seat.
6. The temperature measurement device of claim 2, wherein the camera module comprises a live-action camera and a thermal imaging device;
the thermal imaging device is arranged on the outer wall of the live-action camera, and the thermal sensing head of the thermal imaging device and the live-action lens of the live-action camera face to the same side.
7. The temperature measurement device of claim 6, wherein the connection mount is a high resistance bearing.
8. The temperature measuring apparatus according to claim 6, wherein the connecting socket and the thermal imaging device are disposed on the same outer wall surface of the live-action camera.
9. The temperature measurement device of claim 1, wherein the calibration source module comprises a temperature sensor and an alumina coating for coating the temperature sensor;
the temperature sensor is in communication connection with the main control module so as to upload a temperature detection value of the temperature sensor to the main control module.
10. The temperature measurement device of claim 1, wherein the calibration source module comprises a blackbody calibration source.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020329559.XU CN211452611U (en) | 2020-03-16 | 2020-03-16 | Temperature measuring device |
| PCT/CN2020/119617 WO2021184733A1 (en) | 2020-03-16 | 2020-09-30 | Temperature detection device and temperature measurement method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020329559.XU CN211452611U (en) | 2020-03-16 | 2020-03-16 | Temperature measuring device |
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| CN211452611U true CN211452611U (en) | 2020-09-08 |
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| CN202020329559.XU Active CN211452611U (en) | 2020-03-16 | 2020-03-16 | Temperature measuring device |
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| CN (1) | CN211452611U (en) |
| WO (1) | WO2021184733A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021184733A1 (en) * | 2020-03-16 | 2021-09-23 | 北京迈格威科技有限公司 | Temperature detection device and temperature measurement method |
| WO2022121562A1 (en) * | 2020-12-09 | 2022-06-16 | Zhejiang Dahua Technology Co., Ltd. | Devices and methods for temperature measurment |
| WO2022187952A1 (en) * | 2021-03-09 | 2022-09-15 | C2Ro Cloud Robotics Inc. | System and method for thermal screening |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114323306B (en) * | 2022-03-07 | 2022-07-08 | 深圳佳特安科技有限公司 | Blackbody integrated body temperature measuring device and detection method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100464167C (en) * | 2006-04-06 | 2009-02-25 | 中国人民解放军空军航空医学研究所 | Method and device for real-time correcting infrared measuring temperature |
| CN205027445U (en) * | 2015-09-15 | 2016-02-10 | 武汉凯尔文光电技术有限公司 | External dynamic black matrix calibration source |
| US10605669B2 (en) * | 2016-12-13 | 2020-03-31 | Panasonic Intellectual Property Management Co., Ltd. | Information processing method, information processing system, mobile terminal, infrared detector, and non-transitory computer readable recording medium storing program |
| CN206773147U (en) * | 2017-05-27 | 2017-12-19 | 浙江万里学院 | Device fault detecting system on a kind of general-purpose circuit board plate |
| CN211452611U (en) * | 2020-03-16 | 2020-09-08 | 北京迈格威科技有限公司 | Temperature measuring device |
-
2020
- 2020-03-16 CN CN202020329559.XU patent/CN211452611U/en active Active
- 2020-09-30 WO PCT/CN2020/119617 patent/WO2021184733A1/en active Application Filing
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021184733A1 (en) * | 2020-03-16 | 2021-09-23 | 北京迈格威科技有限公司 | Temperature detection device and temperature measurement method |
| WO2022121562A1 (en) * | 2020-12-09 | 2022-06-16 | Zhejiang Dahua Technology Co., Ltd. | Devices and methods for temperature measurment |
| EP4189342A4 (en) * | 2020-12-09 | 2024-01-03 | Zhejiang Pixfra Tech Co Ltd | Devices and methods for temperature measurment |
| WO2022187952A1 (en) * | 2021-03-09 | 2022-09-15 | C2Ro Cloud Robotics Inc. | System and method for thermal screening |
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| WO2021184733A1 (en) | 2021-09-23 |
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