CN212261348U - Remote temperature measurement system based on thermal imaging and face recognition - Google Patents
Remote temperature measurement system based on thermal imaging and face recognition Download PDFInfo
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- CN212261348U CN212261348U CN202020976273.0U CN202020976273U CN212261348U CN 212261348 U CN212261348 U CN 212261348U CN 202020976273 U CN202020976273 U CN 202020976273U CN 212261348 U CN212261348 U CN 212261348U
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Abstract
The utility model provides a remote temperature measurement system based on thermal imaging and face identification can carry out real-time, quick, accurate detection people flow temperature to the big scene that the flow of people is big, the condition is complicated. The device provided by the utility model utilize thermal imager to carry out synchronous acquisition to human body temperature under the big scene, utilize the range finding probe to record the distance of object to the sensor, pass to the host computer through serial port module and carry out information processing, combine temperature correction processing algorithm, obtain the temperature information of all positions in the monitoring range, rethread face identification algorithm, catch all people's faces that appear in the picture, according to the position coordinate of people's face in the control, known temperature information above combining, realize carrying out real-time temperature measurement to all people's faces that appear in the control.
Description
Technical Field
The utility model belongs to human body temperature detection area especially relates to through thermal imaging and face identification, have human-computer interaction interface's temperature measurement system.
Background
Nowadays, the method for rapidly detecting the body temperature of a human body mainly depends on an infrared temperature sensor and realizes the measurement of the body temperature according to the infrared energy emitted by the human body. The product that drops into wide application at present mainly has the forehead thermometer and the fixed infrared radiation thermometer who settles in floodgate aircraft nose department, but both have certain defect, and the former can only measure single target at every turn, and inefficiency just is not suitable for the big scene of passenger flow dispersion, and the latter is through carrying out the analysis to the thermal imaging parameter of shooing crowd, and it is difficult to accomplish accurate detection and can't guarantee higher simultaneous measurement number standard under the condition that a plurality of targets are close to too densely.
At present, as the sensor has the advantages of small volume, easy maintenance and capability of being combined with a network technology and a software platform, along with the high-speed development of the computer technology, the temperature measurement method based on the infrared sensor and the computer data processing technology is more and more applied in various scenes. However, in the prior art, there is no device capable of detecting the temperature of the people stream in real time, rapidly and accurately in large scenes with large flow of people and complex situations.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to prior art's defect, provide one kind can carry out real-time, quick, the accurate device that detects people and flow the temperature to the big scene that the flow of people is big, the condition is complicated. The device provided by the utility model utilize thermal imaging system to carry out synchronous acquisition to human body temperature under the big scene, utilize range finding probe to record the distance of object to thermal imaging system, pass to the host computer through serial port module and carry out information processing, combine temperature correction processing algorithm, obtain the temperature information of whole positions in the monitoring range, rethread face identification algorithm, catch all people's faces that appear in the picture, according to the position coordinate of people's face in the control, known temperature information above combining, realize carrying out real-time temperature measurement to whole people's faces that appear in the control.
The utility model discloses a realize through following technical scheme:
a remote temperature measurement system based on thermal imaging and face recognition comprises a thermal imager, a data transmission serial port module, an information processing module, a temperature correction module, a storage module, a video monitor, a face recognition module and a UI terminal; wherein: the system comprises an information processing module, a temperature correction module, a storage module, a video monitoring module, a face recognition module and a UI terminal, wherein the information processing module, the temperature correction module, the storage module, the video monitoring module and the face recognition module are installed in a computer to operate, a thermal imager is connected with the computer through a data transmission serial port module, and the video monitoring module is connected with the computer through data transmission equipment.
The thermal imager is used for acquiring temperature data of a target to be measured;
the data transmission serial port module is used for transmitting the temperature data acquired by the thermal imager to the information processing module;
the information processing module is used for processing the temperature data acquired by the thermal imager;
the temperature correction module is used for carrying out temperature correction on the data transmitted by the information processing module and improving the precision;
the storage module is used for storing the data transmitted by the temperature correction module;
the video monitoring is used for shooting a real-time monitoring picture and forming a video stream;
the face recognition module is used for capturing faces appearing in pictures of video streams shot by video monitoring;
the UI terminal is used for displaying thermal imaging and video monitoring pictures, displaying data and displaying alarms.
Furthermore, the thermal imager and the video monitoring camera are installed together, so that a monitoring picture is matched with a thermal imaging display picture, the thermal imaging and the monitoring video picture are displayed on a UI terminal window, and the thermal imaging and the monitoring video picture have the same range size and are in one-to-one correspondence. Because the thermal imager and the camera can be used for displaying pictures, the purpose of synchronous display of the thermal imager and the camera is to enable the temperature in the video of the camera to be displayed more visually, and secondly, the pictures are overlapped as much as possible, so that the precision can be improved in a subsequent monitoring picture segmentation program. The term "mounted together" means that the thermal imager is mounted around the camera head and is adjacent to the camera head, and the two are not required to be directly connected.
The system further comprises a distance measuring probe used for measuring the distance from the target to be measured to the thermal imager, transmitting the measured distance data to a data processing center through the data transmission serial port module for information processing, and transmitting the distance data to the temperature correction module for temperature correction.
The utility model provides a system has combined applications such as thermal imaging, image video processing, face identification, can realize the integration of control temperature measurement, guarantees that the people face that appears in the control can in time be caught, and then has guaranteed higher simultaneous measurement number standard, can realize quick, real-time, accurate, monitor a plurality of human body temperatures simultaneously.
Drawings
FIG. 1 is a schematic diagram of a temperature measurement system based on thermal imaging and face recognition
In the figure: the method comprises the following steps of 1-a thermal imager, 2-a data transmission serial port module, 3-video monitoring, 4-an information processing module, 5-a temperature correction module, 6-a storage module, 7-a face recognition module, 8-a UI terminal and 9-a computer.
Detailed Description
In this section, the invention will be further explained and illustrated with reference to specific embodiments:
example 1
A remote temperature measurement system based on thermal imaging and face recognition comprises a thermal imager 1, a data transmission serial port module 2, an information processing module 4, a temperature correction module 5, a storage module 6, a video monitor 3, a face recognition module 7 and a UI terminal 8; wherein: the information processing module 4, the temperature correction module 5, the storage module 6, the video monitor 3, the face recognition module 7 and the UI terminal 8 are installed in a computer 9 to operate, the thermal imager 1 is connected with the computer 9 through a data transmission serial port module 2, and the video monitor 3 is connected with the computer 9 through data transmission equipment.
The thermal imager 1 is used for acquiring temperature data of a target to be measured;
the data transmission serial port module 2 is used for transmitting the temperature data acquired by the thermal imager to the information processing module;
the information processing module 4 is used for processing the temperature data acquired by the thermal imager;
the temperature correction module 5 is used for carrying out temperature correction on the data transmitted by the information processing module and improving the precision;
the storage module 6 is used for storing the data transmitted by the temperature correction module;
the video monitor 3 is used for shooting a real-time monitoring picture and forming a video stream;
the face recognition module 7 is used for capturing faces appearing in pictures of video streams shot by video monitoring;
the UI terminal 8 is used to display thermal imaging, video monitoring pictures, display data, and display alarms.
For the whole temperature measurement system, the temperature data is from the thermal imaging system, and the temperature correction module 5, the storage module 6, the face recognition module 7 and the UI terminal 8 all complete the work on the computer 9.
The working process of the system is as follows:
step 1: acquiring body temperature data of a target to be detected in a large scene by using a thermal imager, and generating a video stream of a video monitoring picture in a range to be detected by using video monitoring;
step 2: measuring the distance from a target to be measured to a thermal imager, transmitting distance data, body temperature acquisition data and a video stream to an information processing module through a data transmission serial port module for information processing, then transmitting the information to a temperature correction module, and operating a temperature correction processing algorithm to obtain temperature information of all positions in a range to be measured;
and step 3: and (2) capturing the faces of all targets to be detected appearing in the picture of the video stream generated by video monitoring by operating a face recognition algorithm through a face recognition module, and realizing real-time temperature measurement of all the faces appearing in the monitoring by combining the temperature data acquired in the step (1) according to the position coordinates of the faces in the video monitoring.
And 4, step 4: and (3) automatically detecting and framing a face in a video monitoring area of the UI terminal, marking the real-time body temperature finally measured in the step (3) into a face frame in a video picture, and if the body temperature is displayed to exceed 37 ℃, giving an alarm in various modes, for example, the aim of early warning can be achieved by continuously flashing the face frame.
Example 2
The present embodiment is different from embodiment 1 in that: the thermal imager 1 and the camera of the video monitor 3 are installed together, so that a monitoring picture is matched with a thermal imaging display picture, the thermal imaging and the monitoring video picture are displayed on a window of the UI terminal 8, and the thermal imaging and the monitoring video pictures are in the same range and are in one-to-one correspondence. Because the thermal imager and the camera can be used for displaying pictures, the purpose of synchronous display of the thermal imager and the camera is to enable the temperature in the video of the camera to be displayed more visually, and secondly, the pictures are overlapped as much as possible, so that the precision can be improved in a subsequent monitoring picture segmentation program. The term "mounted together" means that the thermal imager is mounted around the camera head and is adjacent to the camera head, and the two are not required to be directly connected.
Because thermal imaging camera and video surveillance camera head are in the same position, the monitoring range that appears on the computer also matches, in the work step 2 that adopts the device to carry out remote temperature measurement: because the thermal imager and the video monitoring camera are positioned at the same position and the monitoring ranges presented on the computer are also matched, the distance can be judged according to the size of the face in the video through a face detection algorithm, and the hardware cost can be saved; the face detection algorithm can adopt all mature algorithms which can realize technical effects in the prior art, such as libfacedetection algorithm, is an open source face recognition library and can be directly called.
Example 3
The present embodiment is different from embodiment 2 in that: the system also comprises a distance measuring probe used for measuring the distance from the target to be measured to the thermal imager, transmitting the measured distance data to a data processing center through the data transmission serial port module for information processing, and transmitting the distance data to the temperature correction module for temperature correction.
In the working step 2 of adopting the device to carry out remote temperature measurement: and measuring the distance between the target to be measured and the thermal imager by using the distance measuring probe.
The utility model provides a system has combined applications such as image video processing, face identification, realizes the integration of control temperature measurement through thermal imaging system, guarantees that the people face that appears in the control can in time be caught, and then has guaranteed higher simultaneous measurement number standard, can realize quick, real-time, accurate, monitor a plurality of human body temperatures simultaneously.
Claims (3)
1. The utility model provides a remote temperature measurement system based on thermal imaging and face identification which characterized in that: the system comprises a thermal imager (1), a data transmission serial port module (2), an information processing module (4), a temperature correction module (5), a storage module (6), a video monitor (3), a face recognition module (7) and a UI terminal (8); wherein: the system is characterized in that the information processing module (4), the temperature correction module (5), the storage module (6), the video monitor (3), the face recognition module (7) and the UI terminal (8) are installed in a computer (9) to operate, the thermal imager (1) is connected with the computer (9) through the data transmission serial port module (2), and the video monitor (3) is connected with the computer (9) through data transmission equipment.
2. A remote thermometry system based on thermal imaging and face recognition as claimed in claim 1, wherein: the thermal imager (1) and the camera of the video monitor (3) are installed together, so that a monitoring picture is matched with a thermal imaging display picture, the thermal imaging and the monitoring video picture are displayed on a UI terminal window, and the thermal imaging and the monitoring video picture have the same range size and are in one-to-one correspondence.
3. A remote thermometry system based on thermal imaging and face recognition as claimed in claim 2, wherein: the system also comprises a distance measuring probe used for measuring the distance from the target to be measured to the thermal imager (1).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113823027A (en) * | 2021-09-09 | 2021-12-21 | 浙江慧享信息科技有限公司 | Intelligent non-inductive passing control system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113823027A (en) * | 2021-09-09 | 2021-12-21 | 浙江慧享信息科技有限公司 | Intelligent non-inductive passing control system |
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