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You may have heard about the use of thermal imaging to measure body temperature (Ebulwark). Many people say that as companies start to reopen, we will gradually get rid of isolation, which will become part of our "new normal." Our body heat sensor camera has facial recognition function and infrared temperature detection, which can realize remote temperature detection without touching the human body. As a means of helping to prevent the spread of Coronavirus (COVID-19), these temperature cameras serve as a pre-screening device. 

The best method is to use a contact thermometer to measure a person's internal or core body temperature, and thermal imaging is a good non-contact method. The method is to focus on the tear duct to measure the person's temperature.
What is infrared and how does it work? Infrared is invisible to human eyes, it is radiant energy that we can perceive as heat. The thermal imager measures the radiant infrared energy of the object, and then mathematically converts it into temperature according to the emissivity of the object being measured. Every pixel on the camera has a calibrated temperature reading.

When using a thermal imaging system, it is important to evaluate whether the system can provide the expected results in a high-throughput area. We understand that these devices are being used for initial temperature assessment and to classify individuals in medical and non-medical environments to increase temperature. They should not be used in crowded places to measure the body temperature of many people at the same time. In other words, "body temperature screening" is not recommended.

Depending on where the system is used, there may be more appropriate methods to initially assess and classify people, especially if there is a risk that an infected person cannot be identified immediately. E.g:
1. In nursing homes, incorrect temperature measurement results or missing infectious persons who do not have a fever may spread the infection to nursing home residents. Therefore, in this case, other assessment options and following infection control measures may be more effective.
2. In airports, workplaces, grocery stores, concert venues or other areas where you want to screen a large number of people for large-scale fever screening, diagnostic tests may be too difficult due to the time and cost required to screen and obtain results . These systems may miss most infectious COVID-19 individuals. When used as part of a larger risk management approach, thermal imaging systems can be seen as a method for initial temperature assessment in these types of environments.
3. In hospital emergency rooms, thermal imaging systems may help to quickly assess temperature and divert patients to determine who needs more evaluation or isolation.