The dual-purpose Wisenet TNM-3620TDY camera from Hanwha Techwin is equipped with QVGA thermal imaging and HD capabilities designed to help businesses operate safely during the COVID-19 era.
The TNM-3620TDY is a bi-spectrum, multi-channel device which incorporates a QVGA-class thermal imaging camera and a 2 MP video surveillance camera. As such, it can detect heat and measure temperature with a very high degree of accuracy, while providing visual verification of people within its field of view.
In body temperature mode, the QVGA-class thermal imaging camera is able to estimate a person’s temperature within a range of 30⁰-45°C, with +/-0.5⁰C accuracy. When supported by black body technology, the accuracy increases to +/-0.3⁰C, allowing the TNM-3620TDY to provide a strong indication that a person may have a fever.
Offering support for deep learning AI-based face detection functionality, the TNM-3620TDY can measure the temperatures of up to ten individuals in real-time at a distance of up to 3 metres, with operators able to choose to view either the captured thermal images or standard HD video images.
IEC 60601 certification
The TNM-3620TDY is compliant with a series of device technical standards for the safety and essential performance of medical electrical equipment published by the International Electrotechnical Commission (IEC).
In addition, Hanwha Techwin has completed the FDA facility registration process and device registration for the TNM-3620TDY in respect of FDA 510(k) clearance which is in progress.
In normal radiometric mode and with a high degree of accuracy, the thermal imaging camera detects and measures changes in temperature within the -20⁰C to 130°C range. End users are able to set up detection zones to cover specific areas of interest within the camera’s field of view. This provides a powerful tool which generates alerts when there’s a threat of fire in recycling, waste management and landfill-type facilities where spontaneous combustion may occur. A detected change in temperature may also be a warning that machinery in factories, processing plants, cold stores or utilities is faulty.
In addition, a spot detection feature enables operators, via a web viewer, to click on any pixel within an image and obtain a measurement of the temperature of the area covered by that pixel.
WiseStream II technology
The TNM-3620TDY supports H.265, H.264 and MJPEG compression formats, as well as WiseStream II, a complementary compression technology which dynamically controls encoding, balancing quality and compression according to movement in the image.
Bandwidth efficiency is improved by up to 75% when compared to current H.264 technology when WiseStream, which is unique to Wisenet cameras, is combined with H.265 compression.
The 2 MP video surveillance camera features a set of Intelligent Video Analytics which include directional detection, motion detection, enter/exit, virtual line, audio detection and camera tampering detection.
The TNM-3620TDY has a Micro SD/SDHC/SDXC slot which allows up to 256 GB of video or data to be stored at the edge should there be any disruption to the network. Video evidence, which potentially might have been lost, can therefore be retrieved when the network connection has been restored.
Capability to deliver
“Regretfully, some so-called ‘fever screening’ solutions devised by other manufacturers have attracted negative publicity,” said Uri Guterman, head of product and marketing for Hanwha Techwin Europe. “In my view, this is because they’ve been oversold in terms of what they’re capable of delivering.”
He continued: “Although we’ve often been the first to market with new product developments and technologies, in this instance we’ve taken the time to develop the TNM-3620TDY and ensure that it’s fit for purpose. We highly value the trust our customers and business partners have in our ability to provide solutions which do not compromise on performance and quality. In this respect, they can be confident that this camera will meet, if not exceed, their expectations.”
In conclusion, Guterman stated: “The TNM-3620TDY is a great addition to our suite of COVID-related solutions, which includes face mask detection, occupancy monitoring and AI deep learning-based social distance measuring applications.”
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