How do sensors improve the level of safety protection?
In this epidemic, the power of science and technology also plays a very important role. On January 25, Beijing Zhongguancun asked Haidian Technology Company for artificial intelligence technology solutions related to "infrared temperature measurement products" to improve accurate temperature measurement based on "large crowds".
In fact, the key to "AI infrared temperature measurement" lies in the term "infrared", that is, "infrared thermal imaging technology" that must be used in the production of infrared measuring instruments. According to Gongcai.com, in nature, all objects above absolute zero (negative 273 degrees Celsius) have thermal radiation, or "thermal infrared". Although invisible to the human eye, almost all living organisms emit this infrared light all the time. At this time, if a special infrared detector is used, this radio wave can be captured and converted into an infrared thermal image visible to the naked eye.
In the epidemic situation, many regions use drone infrared temperature measurement to prevent and control, and the principle of drone temperature measurement also lies in infrared detection. General heat radiation mainly depends on longer wavelengths of visible light and infrared light. Therefore, sensors that can receive infrared radiation and produce physical changes are commonly used for non-contact measurement of temperature. This type of sensor is called an infrared temperature sensor.
Infrared thermal imaging uses an infrared temperature sensor to measure the temperature of different points on the surface of the measured object, and then scans the measured information into the optical imaging system to display the measured object in color images representing different temperatures.
By installing door sensors on the doors of isolated residential houses, the system can monitor isolated people in the area in real time. After the quarantine opens the door, the system will pop up an alert and prompt message, and immediately notify the person in charge of the neighborhood committee through SMS to remind the staff to pay attention to the opening of the quarantined person at home to ensure that the epidemic prevention and control work is in place.
The street staff told reporters that the system uses an "active + passive" mechanism. Among them, active refers to the door body sensor installed on the door to actively detect the opening action of the residents. The passive way is to paste a QR code in the room. If residents need to open the door, such as throwing garbage, to receive express delivery or other needs, they can notify the staff of the neighborhood committee by scanning the QR code.
The person in charge of the street said that the installation of the system device mainly serves as an early warning function, which further enhances the enthusiasm and initiative of the home isolation personnel to cooperate with the epidemic prevention work. On the other hand, with this equipment, the work pressure faced by front-line workers has been relieved to some extent. After canceling the 14-day home isolation period, the staff will remove the door sensor as soon as possible.
Facing the severe situation of the spread of the epidemic, Gongcai believes that we need to introduce more scientific and technological forces, develop more application tools according to the actual needs of prevention and control, and use them in various links to assist in prevention and control, and enhance the scientific and technological content of prevention and control of the epidemic. I believe that with our joint efforts, we will be able to control the epidemic and win the final victory.
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