A walk-through Hikvision Metal Frame Detector featuring temperature measuring and metal detection for a person, Hikvision ISD-SMG318LT-F. Earlier, we showcased Temperature Measurement Systems, fixed and handheld thermal cameras, but the topic itself is way deeper, and we continue our journey deep down there.
You definitely saw this with your eyes and probably passed through one like this when you were in the airport, so the operational principle is clear to you. But this time our 1st detection line is a temperature, even before a person passes through a metal detector. If the temperature parameter is not okay, the person will not proceed through the frame; he will be told to stop. In this scenario, we are not letting the visitor in, so he cannot infect anyone inside. In such a way, our visitor was labeled as a potential threat, and he is going to be inspected by a medic. Although if the temperature is okay, this is how it looks:
What you can see with these LEDs located on both sides, the area where something metal was spotted is highlighted with red lights, a security guard will search that part of the body.
Now this is the advantage of such technology – 2 detection parameters in one device, so that a person has no other way but to go through both temperature and metal detection, instead of only a single way used. Because not every weapon is either sharp or can shoot, but there are some invisible to our eyes. With this system, we’re able to 2-step verify and spot a possible threat.
Overview
Originally, the set consists of 2 parts – the metal detector frame and the thermographic dome-body type camera, and is named as Hikvision ISD-SMG318LT-F. There is an LCD screen, we’re on the home tab, that displays four information types, and these are your main numbers: how many people have passed and below – how many people were detected carrying something metal. On the right side, we’ve got the measured temperature string, and below, how many people were detected with an abnormal temperature.
This is monitored by a security guard. Next on the menu we have overall security, sensitivity level, adjustable, then it is the sensitivity of separate zones from top to bottom of the frame, the number of which is eighteen zones, and every single one of them is adjustable, which is just awesome.
Now, the application, or profiles, and as you can see here, we are in a prison. Among other application places, there are Airports, Schools, Universities, Shopping Malls, Hospitals, Museums, and many other public locations with a great flow of people passing. Next, the frequency, so you can better adjust it for your environment, and let it not touch other devices. The alarm sound and the volume, Wifi connection, and the tab where we can configure which of these 2 groups of infrared detectors will be active, former and latter. And now the camera.
Thermographic Camera
Secondly, a Hikvision thermographic camera, DS-2TD1217B-3/P, is also a suitable equivalent part, which is connected to a metal detector via an RS-485 interface. This allows it to transmit signals, enabling the metal frame to raise both an audio alarm and a strobe light alarm. It features 2 2-camera module setup: thermal and 4MP. optical, and that allows us to view both images at once like “picture in picture” mode, or in the Image Fusion mode, when the details of the thermal channel are overlaid on the optical channel to show you more details, eventually at once.
The temperature measurement accuracy, the margin of error, is around ± 0.5 Celsius, but if you use a black body device in your setup, that parameter will decrease down to ± 0.2-0.3 Celsius. And you can also add to the setup some intelligent NVR to make up some heavy analytics and smart functionality, though it’s not our way this time. Due to the camera having a face detection feature, it easily distinguishes various objects from people.
Conclusion
Such a combination of a Metal Frame Detector and the Thermographic Camera allows us to arrange a 2-step threat detection, where the first detection line is a temperature measurement, and the second is an advanced metal detection. Due to that, neither a person with an elevated temperature, nor a person carrying any metal parts, will pass through it. I don’t have to tell how convenient this is, considering the epidemic that we are facing now, and how convenient it is for large facilities, that don’t anymore have to install both metal detector and temperature measurement system, as here in our case it comes as the all-in-one solution, because it is the solution to the problem, provided by Hikvision.