Thermal imaging equipment for establishments

In addition to the background broadcast and warning system, in 2020 it became mandatory to install thermal imaging scanning at the entrance of the establishment, a system that scans a person’s real temperature and transmits this data to the monitor. A miniature video surveillance camera is installed at the entrance area and scans the temperature of each visitor and employee of the establishment. A separate monitor broadcasts a video displaying a person’s temperature. This system replaces a fully standing person with a pyrometer (temperature meter).

The developers of this technology have achieved minimal errors, the accuracy of which is 0.3 ⁰С. High efficiency allows you to obtain the result of a person’s temperature within 1 second.

The highest priority of this technology is contactless temperature measurement of visitors, which reduces the risk of infection!

The principle of operation of the technology.

All objects with a temperature above zero are a source of radiation, which is received by a thermal imaging camera, which converts the infrared radiation into a gray value and determines the corresponding relationship between temperature and gray value using a temperature measurement algorithm. The main symptom of the COVID-19 viral disease (SARS-Cov-2) is elevated body temperature, which a thermal imaging camera can detect with high accuracy.

Measurement process.

To organize measurements using a thermal imager, you need to prepare the entrance area informatively or using fences. Smart facial recognition cameras with thermal imaging only measure the temperature of people and do not react to other heat sources. This reduces the number of false alarms. A built-in audible alarm will alert the operator when a person's elevated temperature is detected. Thermal imagers use matrices of our own production. Therefore, we can provide complete solutions with DVR, switcher and other devices.

The effectiveness of a thermal imaging system in identifying people with elevated body temperatures is highly dependent on environmental conditions. This system should only be used indoors. In this case, sharp fluctuations in air and ambient temperature are unacceptable. The location of the devices and the ambient lighting (too bright or too dark) significantly affect the accuracy of face detection. To improve measurement accuracy and improve face detection performance, the following requirements must be taken into account during installation:

• As an installation location, select a point opposite the one-way passage
• so as to ensure complete capture of the face of each of the passing people.
• The installation point must have stable and sufficient lighting. When
• backlight or in low light conditions is necessary
• additional lighting so that facial features are clearly visible.
• To install the system, select a room with a constant temperature
• air, strong air circulation is not allowed. Using the system
• Outdoor use is not recommended, as temperature changes are possible.
• If the system is used at the entrance from the street to the premises, it is necessary
• install the equipment at some distance from the entrance (for example, when
• use at customs or at checkpoints). Before measuring temperature
• the person must remain in the room for at least 5 minutes. This allows
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• reduce the influence of ambient (street) temperature on the measured
• human body temperature.
• Objects with high or low temperatures are not allowed
• near the system installation point.
• The thermal imager should be aimed so that there are no objects behind people’s backs
• with high temperatures (monitors, computers, heaters, etc.)
• Devices must be securely fastened to avoid errors when
• face detection and temperature measurement caused by shaking.
• Installation of a portable system - Recommended installation height of a portable system is 1.5-1.7 m

Basic parameters of the thermal imager

Temperature range: 30.0 to 45.0 °C;

Temperature measurement accuracy: ± 0.3 °C (without blackbody ± 0.5 °C);

Camera resolution: Thermal imaging module: 384 × 288; 160×120;

Optical module: 2688 × 1520;

Face Detection: Powered by AI

Simultaneous temperature measurement of 30 people (wearing masks does not affect temperature measurement)