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  • Bqx-cw02 through dual spectrum thermal imaging temperature measurement system

  • Product overview: there is no need for staff to closely check customs clearance personnel. Remote temperature measurement not only respects each other's privacy, but also reduces the risk of cross infection caused by close contact and personnel gathering; the integrated intelligent temperature measurement platform system realizes unmanned operation, increases safety and realizes


    Applicable places: it is mainly used in the areas where the flow of people is particularly large and needs special control, such as hospitals, stations, airports, schools, shopping malls, banks, stock exchanges, cinemas, markets and other public places;


1.  Temperature measurement principle of infrared thermal imaging

In nature, in addition to the light that can be seen by the human eye (usually called visible light), there are also ultraviolet rays, ultraviolet rays, ultraviolet rays, ultraviolet rays, ultraviolet rays, ultraviolet rays, ultraviolet rays, ultraviolet rays, ultraviolet rays, ultraviolet rays, ultraviolet rays, ultraviolet rays, ultraviolet rays, ultraviolet rays, ultraviolet rays, ultraviolet rays   Infrared and other non visible light. In nature, the temperature is higher than absolute zero Any object (- 273 ℃) radiates electromagnetic waves (infrared rays) at any time. Therefore, infrared rays are the most extensive electromagnetic waves in nature, and thermal infrared rays will not be absorbed by atmospheric clouds. With the rapid development of science and technology, the use of infrared characteristics, the use of electronic technology and computer software and infrared technology, used to detect and measure thermal radiation. According to the size of the external radiation heat on the surface of the object, the thermal sensor obtains different heat difference. Through the processing of electronic technology and software technology, the image with different light and shade or color difference is presented, which is commonly referred to as infrared thermal imaging. After the heat on the surface of the radiation source is converted by thermal radiation algorithm, the conversion between thermal image and temperature is realized.

 

2.  Working principle of body temperature measurement alarm

The core technology of human body temperature measurement camera is a dual spectrum imaging camera with infrared thermal image and visible light image. The dual spectrum imaging camera is installed in the inlet and outlet channel, so that the lens can directly look at the bayonet position of the channel (Note: accurate temperature measurement must be equipped with a blackbody instrument at the detected point to do the temperature reference correction for the inspected personnel); the temperature measuring camera is used for the face-to-face flow of people passing through the bayonet On line real-time temperature measurement of exposed parts of the body such as forehead. When the detected temperature is greater than the set temperature (e.g 37.3 ℃), that is to say, in case of suspected heating personnel, the system will immediately lock the personnel with the highest temperature and alarm to remind the on duty personnel to handle according to the plan.

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Illustration: use the actual scene to take pictures

 

3.  Application of temperature measurement scene

 

3.1.  Screening for suspicious fever in intensive induced abortion

In order to avoid the crowd and crowd of people in the public places, such as shopping malls and stock exchanges, people should be screened in the public places such as shopping malls and stock exchanges. In the entrance and exit area close to the pedestrian flow, a dual spectrum temperature measurement camera is set, and the lens is aimed at the entrance and exit passage, and the temperature measurement camera is set with an approach heating (for example: 3.3 ℃), when the flow of people reaches or exceeds this threshold, the back-end platform alarms to remind the staff, and can carry out the second temperature measurement for the suspected fever personnel, which can not only quickly screen, but also avoid the risk of cross infection caused by one-to-one close contact temperature measurement.

As shown in the figure below, the infrared thermal image can support a variety of thermal map display according to different scenes, including a variety of pseudo color, hot black and hot white modes. The maximum temperature, minimum temperature and average temperature can be displayed in real time on the whole picture frame; multiple regions can also be divided according to channels, and the maximum temperature, minimum temperature and average temperature can be displayed in each area in real time, and each temperature point can be loaded Cursor, and display the temperature on the image in the form of character superposition. In order to display more intuitively, each area can be set with an over temperature alarm line. When each area exceeds the preset alarm threshold, the maximum temperature can be automatically displayed as red, and the alarm information can also be output, so that the on duty personnel can accurately and intuitively lock the personnel with different body temperature.

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Here is the temperature monitoring of the channel bayonet

In order to make the temperature measurement system more intelligent, artificial intelligence algorithm can also be added to cooperate with the back-end analysis and processing, so as to make more direct and effective scene and function application. For example: to remind the person wearing a hat, to capture the face of the suspected person, and to quickly find the close contacts through the face of the suspected person.

 

 

4.  Display of temperature measurement and alarm

 

After confirming the suspicious personnel target, the front end dual spectrum temperature camera can realize the following functions on the back-end platform:

1、 The monitor station will pop up a large screen display

2、 The alarm sound reminds the field staff

3、 The temperature value is superimposed on the visible image

4、 Capture and save the visible image of the person being alerted

5、 Cooperate with the linkage trigger of other functions of the platform

6、 Other functions that customers need to customize

 

5.  Platform for temperature data analysis and storage

 

The front-end dual spectrum temperature measurement camera supports 7 * 24-hour uninterrupted operation. The back-end image temperature measurement integrated intelligent management platform software displays and analyzes the temperature and image data collected by the front-end in real-time, and gives early warning response. According to the needs of prevention and control, the video image and temperature measurement data can be stored separately. The integrated intelligent temperature measurement management platform system can also intelligently analyze the temperature data The temperature data is charted to form a temperature data change table. When the video playback is called in the later stage, the image and temperature value of each monitoring device for each controlled object can be adjusted; in the process of historical image playback, even if the image displayed with temperature information is not superimposed, the temperature value can be queried twice in the video file.

 

6.  Characteristics and core technology of the system

 

     The infrared thermal imaging technology is mature, and the dual spectrum temperature measurement camera using this technology is one of the most effective temperature measurement equipment. Equipped with the thermal image temperature measurement platform, a simple, applicable, reliable, intelligent and convenient temperature measurement system can be quickly constructed. The core technology and application description of the system are as follows:

 

 

6.1.   Dual spectrum temperature measurement camera

 

l Dual spectrum temperature measurement camera support 1-30 Meter distance temperature measurement, 7*24H  Continuous operation, always on-line monitoring, temperature measurement, early warning of the target.

l The single screen image can be subdivided into two parts: one is the area detected by the dual spectrum temperature measuring camera thirty-two Each area can be named separately. The maximum temperature, minimum temperature and average temperature of each area can be displayed on the same screen. The alarm threshold value of each area can be defined separately.

l It can monitor the target in time, display the temperature and alarm when it is over temperature. The dual spectrum temperature measuring camera has built-in intelligent chip and algorithm, and the equipment has high reliability.

l The monitoring data of dual spectrum temperature measurement camera is basically consistent with that of hand-held gun AI  Intelligent calculation, real-time compensation or correction can be made for temperature measurement data under different monitoring distance and different ambient temperature.

l The dual spectrum temperature measurement camera is designed with high integration, stable and reliable performance, complete function, low power consumption, environmental protection and easy to use, simple system deployment, similar to the monitoring general camera, and has strong implementation.

l Dual spectrum temperature measurement camera support ONVIF GB28181 It can be easily connected to the traditional security system, with strong compatibility, ease of use and scalability, and can work with multiple systems.

 

6.2.   Integrated intelligent management platform for image temperature measurement

 

l Focusing on the demand of target temperature measurement, it can be combined with the business application of quarantine and protection, power temperature measurement, safety monitoring, access control and other industries.

l The temperature of the detected personnel is displayed in the platform, and the over temperature alarm prompt is displayed, and the pictures are captured and saved, so as to ensure the timely and effective detection of problems on site, and the subsequent investigation is intuitive and simple.

l When playback, the temperature data stored in the video can also be displayed in the temperature detection area.

l The system is simple and intuitive; it has intelligent applications such as temperature warning, alarm, linkage control, big data sharing, etc., and there is room for further improvement, such as face recognition and temperature measurement.

l Platform image transmission support Onvif / GB.T28181  The standard protocol is multi-level networking, and can realize data exchange and sharing with existing medical, safety supervision and remote emergency command center.

l The system has independent intellectual property rights and can be customized and developed according to the actual needs of users.

 

6.3.  Integrated intelligent management platform for image temperature measurement

 

 

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Dimensional drawing of multispectral temperature measurement camera

 


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6.4. Function description of integrated intelligent management platform for image temperature measurement

 

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6.5. Display of software platform operation interface

 

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Illustration: interface display of multispectral temperature measurement platform (optional Blue interface)

 

 

6.6.  Technical requirements for configuration of platform server workstation

         Processor: Intel Four core or above processor of Intel i7 or Xeon E5, with main frequency above 1.7g

         Memory: 16GB, DDR4

         Hard disk space: 2T or above system hard disk, 6T data hard disk capacity (enterprise SAS 3.5 inch hard disk (7200 RPM))

         Video card: Above 2GB

         Network adapter: dual Gigabit network card

         Mouse and keyboard: Windows compatible mouse and standard windows keyboard

         More than 3 USB interfaces

         Pre installed operating system: Windows Server 2012  R2

         Pre installed database:  Microsoft SQL Server2012 R2

 

7.  System configuration table

 

 

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8.  The biggest advantage of system application

 

There is no need for staff to closely check customs clearance personnel. Remote temperature measurement not only respects each other's privacy, but also reduces the risk of cross infection caused by close contact and personnel gathering; the integrated intelligent temperature measurement platform system realizes unmanned operation, increases security, can be stored in real time, can also timely intelligent alarm, and can meet the needs of post verification.

The construction of the system is a one-time investment, which can work in real-time and automatic way no matter in any period of time; it can also eliminate the negligence of human operation, improve work efficiency, reduce staff and increase efficiency.

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