Temperature screening for Covid-19

Global countries have shown that it’s possible to control the spreading of the SARS-CoV-2 or Novel Corona temperature virus by implementing strong protective measures such as infrared camera pandemic to check fever. The WHO also recommends the temperature screening kiosk for Covid 19 at the workplace.

One of those measures is that the use of non-contact infrared thermometry temperature measurement to scan for elevated skin temperatures within the limited space. this is essential to re-open or keep open offices, buildings, hospitals, businesses or facilities of any kind. Staffs, employees and guests need their temperature examined to assist within the containment.

Thermal scanner enables to quickly scan large groups of individuals . It performs the skin temperature measurement with an accuracy of ±0.3 ℃ during a standard environment of 20-25 ℃ (68-77 ℉). 

Face recognition temperature screening equipment

The temperature screening device operation is pretty simple: the person just walk in the lane and face to the device(installed beside the lane or on the barrier gate closely) within 1 meter(which is a comfortable distance) and device can recognize your face and scan your forehead temperature, his thermal image will be displayed on the monitor screen and alarm if his temperature is at fever degree range.

Thermocamera are fully privacy compliant: the developer could define what information is shown and stored. From anonymous self-assesment with an easy code and no metrics to a centrally monitored system with visual images and name recording. Each sensor or thermal camera is calibrated traceable to the NIST standards at 33 and 35℃ during a 20-25℃ environment. The privacy is well protected that the data can be chosen to display or hide, you define the extent of privacy that you simply need for your screening deployment. you’ll set it up as a self-screening station with no supervision with or without showing the temperature. you’ll also set it up with the temperature visible to the person or a supervisor (receptionist, security agent, …). Optionally you’ll even enter the name of the one that was recorded in order that you’ve got an audit trail per scanned person.

The thermal scanner IR spot sensors operate a wide angle to detect an individual in a lane , temperature screening system scans one person at one time. Scanning is extremely fast. Every 0.5 seconds a temperature reading is processed and validated against the defined limits. Using different thermopile electronics, the sensor has automatic compensation algorithm to adjust ambient temperature data. This improves the temperature result accuracy and reduces temperature drifting. Our IR temperature sensors work by capturing the emitted infrared within a narrow field of view. The infrared camera public health detects if an individual is within the specified 1 meter (3 ft) range then takes the measurement and compares it against the defined limits that you simply want to use for your organization.

Main features

  • IR temperature sensor
  • WIFI Temperature sensor cheap
  • 20,000 face local database, accuracy>99.97%, recognition speed<200ms
  • Dual eyes live detection, anti-image fraud, anti-video fraud
  • 8 inches IPS display
  • Auto temperature detection, auto display, auto alarm
  • Infrared and RGB double light compensation, support face recognition under weak light
  • Option: WIFI/4G communication
  • Support: Voice announcement
  • Working environment:  -10℃~60℃
  • Metal case: IP65
Face recognition temperature screening equipment

Keep in mind that body core temperature and skin temperature aren’t an equivalent . The skin temperature is lower than the body core temperature.

With the camera add-on you’ll store a photograph of the scanned person along side their temperature data, the kit includes following hardware with special modified firmware and software: they need onboard a series of sensors that you simply will find in our IR spot sensor, by adding a thermal cameras and AI software, the kit not requires stopping for screening. With this thermal infrared camera it becomes a walk-through screening solition.

For this emergency application, we developed an answer supported our existing thermal camera sensors for critical infrastructure. With this new thermal camera based sensor we’ve made it a standalone device with AI software to specialise in the human skin temperature range. Using its normal camera it provides a thermal overlay on top of the traditional picture; augmenting the thermal resolution of 80×60. Using special algorithms with special sensors, we are ready to bring down the accuracy from the traditional ±5℃ to ±0.5℃ at 37℃ during a 20-25℃environment.

It doesn’t replace a professional medical grade thermometer equipment. By default it returns the higest temperature it can find within the range of the human skin temperature. With the AI feature the software will scan for human faces then identify the very best temperature within those faces. The AI software also can detect if someone is wearing a mask or not. The thermal camera features a daily camera with thermal overlay for augmented thermal reality. It are often mounted on a barrier gate or wall. With the AI feature the software will scan for human faces then identify the very best temperature within those faces. The software scans with the IR spot or thermal camera for a person’s skin temperature range; which is usually between 33.6℃ and 36.9℃. When a temperature is found that’s above defined threshold, an alarm is raised: visual (red) and audible (sound). AI software is provided along with the Thermal Camera kit. This AI software enables to detect faces, mask wearing. Face recognition temperature sensor directly connect with the Monitoring Appliance’s RJ45 ports. They exchange data with the software. The Monitoring Appliance is a compact PC with Windows Enterprise IoT 10 preloaded. It can hook up with a network employing a regular RJ45 network cable OR via wifi. The appliance can store all data from the camera.

Face recognition temperature screening equipment

Specifications

LocationIndoor
CPULinux, MX3520,ARM Cortex A7 1GHz
NPU(face   recogntion algorithm)Inbuilt   Convolutional Neural Networks accelerator NPU,1.2T Hash rate
RAMDDR3 512MB
Internal   storageEMMC 8GB
Face capacity50,000 faces
Face   recognition speed0.5-1 second
Voice   announcementEnglish or French
Fever warningSupport
RGB   camera1/2.7"   Industrial wide dynamic sensor
Purpose: Face recogntion
Inbuilt chip: AR0230
Resolution: 1920*1080
1080P Real Video output
Dot dimension: 2.9um*2.9um
SN ratio: 45dB
Dynamic range: 115dB
Lens structure: 650nm±10nm
Iris: 2.0
Focus length: 4.35mm
FOV angle: D=65°H=59°V=38°
Deformation: <1%
Lens combination: 4P+1IR
100dB wide dynamic range, suitable for complex   light condition
30 frames/second
IR   camera1/5" industrial   low illumincance sensor
Purpose: Live detection
Inbuilt chip: GC2145
SOC image processor ISP
1080P Real Video output
0.01Lux low illuminance with 850nm infrared   LED, suitable for various of complex light condition
Resolution: 1616*1232
Dot dimension: 1.75um*1.75um
SN ratio: 45dB
Dynamic range: TBD
Lens structure: 850nm narrow bandth ±10nm
Iris: 2.8
Focus length: 2.8mm
FOV angle: D=75°H=66°V=43°
Deformation: <1.5%
Lens combination: 4P+1IR
30 frames/second
Infrared   thermal imaging moduleSensor Type :   Thermopile far-infrared sensor
Purpose: Temperature detection
Detection distance: 30-100cm
Temperature difference: ≤   ±0.2℃
Resolution: 32(H)x 32(V)
Pixel Size : 90um
Maximum Frame Rate :7~9Hz
Display8 inches
Resolution: 800*1280
Image spin0 , 90 , 180,   270 degree spin
Real time   clockInbuilt clock IC,   setup ON/OFF time
NetworkRJ45 port,100M ethernet
WIFI,support Wi-Fi   802.11b/g/n protocol
Hotspot
I/O   portUSB OTG
1    TTL, 1 RS232
1 Relay output
AudioInbuilt speaker at 2W   8Ω
Light   compensationSupport white light,   red LED compensation
Automatic or ON/OFF light compensation
FunctionsLive detection
With or without mask
Guest access control
Face similarity: 0-1
Temperature compensation: 0-1000
Language: English, French(expandable)
Fever detection: 28-37.3℃(programmable)
Image import: USB or PC import
SDKProvided
Case materialAluminum CNC process,   IP65
PowerDC12V(±10%)
Working   temperature-10℃~60℃
Storage temperature-20℃~60℃
Consumption12W(Max)
Mounting typeMounting or hanging,   or by floor stand
Dimension42*18*13cm
Weight1.7 kg

How does IR camera with temperature detector work?

This walk through fever measurement equipment device utilizes remote infrared body temperature probe detector with face recognition thermal camera to detect unknown or hidden corona virus disease patients at the entrances.

It can detect the human temperature at long distance of 50cm(20inches) within just 0.5-1 second, it uses the thermal  camera to capture and compare your face by security database, if anyone’s forehead temperature is over 37℃(98.6), the system will automatically alarm so security guard can separate the people for further examination. This product is suitable for corona virus disease(covid-19) early detection or prevention in fast speed, and it can be installed at the entrance of residence communities, airports, metro stations, factories, restaurants, pubs where there are crowded people.  

It has RJ45 port, NO/NC relay port, 1 USB port for external device connection, we also provide SDK for integration.

Why need face recognition during body temperature detection?

Because the sensor could target the forehead when camera catch your face, the dual eye camera utilizes deep learning algorithm to focus on face so the inbuilt infrared temperaure sensor can easily target your forehead to detect your forehead temperature.

FAQ:

Q: Do you have any flow diagram available to better illustrate the when each API will be called during the temperature scanning process?

A: They are not in the flow, you can call any one depending on what you need. Please read below subtitle(SDK document) and understand which function you need to call:

2.1 Export check in/check out information from device to server
2.2 Import registered user information from server to device
2.3 Import deleted user information from server to device
2.4 Export initial status to server
2.5 Import parameters from server to device
2.7 Heatbeat packet of device
2.9 Self operation request for permission from server

Every API is automatically called by device.

Install the HttpServer.exe on server(simultaion tool to receive the data), and input the correct IP address of the server which you installed HttpServer.exe in the thermal scanner device—–you can see the result of the data when you open the httpserver program.

A1- For mounting on the barrier gates

Temperature & face recognition for Covid-19 detection
IR Temperature sensor & face recognition for Covid-19 detection side
IR Temperature sensor & face recognition for Covid-19 detection

A2-For hanging on the pole of wall

Temperature & face recognition for Covid-19 detection
Temperature & face recognition for Covid-19 detection hanging model
Temperature & face recognition for Covid-19 detection hanging model rear view

L1- Stand alone pole

IR Temperature sensor & face recognition for Covid-19 detection standalone pole front view
IR Temperature sensor & face recognition for Covid-19 detection standalone pole 45
IR Temperature sensor & face recognition for Covid-19 detection standalone pole rear view
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