In the fight against Coronavirus, any resource can be valuable in enforcing the new security standards that have been established have been established. We still have several months ahead of us in which the citizens and the y public and private agencies must continue to demonstrate their commitment to these new safety standards. these social distancing and capacity control measures in enclosures and enclosed spaces.. Thus, elements such as elements such as thermal cameras are being are presenting themselves as a great solution solution for security companies and services.
First and foremost, it should be noted that these specific tools specific tools are not intended to confirm or rule out COVID-19 diagnoses. Do not be misled by them, because they are not are not used to identify the disease in the disease in any casebut are limited to pointing out symptoms that may be caused by it. be caused by the disease.. Specifically, they detect signs of elevated body temperature or fever in people who stand in front of their lens, which helps security personnel to locate individuals at potential risk of infection, and a This helps security members to locate individuals at potential risk of infection and to take the necessary measures to prevent them from coming into contact with other people.
Therefore, they can be an important help to perform perfectly the tasks of surveillance and security, so that the ideal is to to know some of their characteristics and specifications to get the best performance out of them. And in SICOR Group we want to make things easier for you, so below we summarize everything you need to know for to be able to manageto be able to use them.
Technology and temperature considerations
Thermal cameras work with infrared technology and detect the heat given off by bodies. However, it is important to note that not always high temperature temperature values at a person are not alwaysn to fever. There are individuals who usually have more temperature than the usual average of 36.6 ºC and are perfectly healthy, but the ideal is to identify each case to assess the protocol to follow. Hence its usefulness.
Thermal chambers for sanitary use are the right ones for this pandemic
For its use in the prevention of Coronavirus infection, sanitary chambers are necessary. Due to their characteristics, these tools also have applications in the industrial industrial sector and have a wide measurement range, although logically these models are not useful for what we need in our case, since they usually have a margin of error of +/- 2º C and what we are looking for is precision. Specifically, as reflected in the ASTM E1965-98 (2003) standard, the ideal margin of error is +/- 0.3º C, so that no serious errors are made in the measurement. And this is the one usually offered by sanitary type chambers.
Factory calibration is essential
The camera must be calibrated at its origin and be wary of whether it requires the user to set the measurement values. Normally these tools include a device a device called a blackbody (blackbody), which is placed in front of the camera and helps to ensure that its sensor has a constant reference, to compare the rest of the bodies and objects that are scanned. other bodies and objects that are scanned.
Incorporation of alarm system
The main objective is to provide preliminary monitoring of the people in front of the camera, so these devices usually include an alarm.. This warns of a possible case and allows to perform a second temperature a second temperature measurement, which can be used to confirm or confirm or rule out.
Saves time and allows to maintain safety distance
The cameras provide two major advantages over the other temperature measurement system, which is carried out with front-facing thermometers. On the one hand, their convenience and automatism, since they do not the guard does not have to approach the people; and on the other hand, their capacity to monitor large groups of people at the same time and in the same place. at the same time and in margins time margins of less than one second.. Specifically, this system can make 30 calculations simultaneouslyos, which saves considerable time.
Measurement range and resolution considerations
It is important to work with thermal cameras that have a wide measuring range, between 3 and 5 meters, as well as a resolution of at least 640×480 px. This allows several measurements to be made at the same time and allows precise control of theiThis makes it possible to take several measurements at the same time and to accurately monitor large spaces where there may be many people.
The forehead and eye area, the best places to measure temperature
It is advisable to combine this system with an advanced face recognition and live face detection program. and live face detection software. This allows the camera calibration to focus on certain areas of a person's head, which helps to increase the accuracy of the data taken. In fact, in these cases, it is recommended to measure the temperatures of the forehead or even around the eyes, as these are the parts of the body that provide the best references.
Before buying them, pay attention to their certificates and homologation.
Y finally, watch out for the certification of the cameras. These tools are going to perform a very important very important and this requires us to work with materials approvedos and totally aptos. For this reason, when acquiring them, it is essential to verify that they have they have certificates CE and FCCcertificates, as well as including a certificate on the calibration of calibration of your measurement system.