Forehead gun is not accurate for body temperature measurement? How to detect it correctly? See what experts say
Qin Shuwei of Ningbo Metrology and Testing Research Institute introduced that the infrared forehead thermometer is a type of non-contact thermometer, which uses the relationship between the thermal radiation of the object and the temperature of the object to measure the temperature.
Windows7 officially retires
Starting today (Tuesday, January 14) to officially stop supporting all computers running Windows 7, which means that it will no longer release any software updates to millions of computers running Windows 7, including software that prevents cyber attacks Patch updates.
What will Tencent Cloud and STMicroelectronics do together?
At the Tencent Cloud IoT Ecological Summit 2019, Tencent Cloud_sqlquote_s Tencent Cloud IoT and semiconductor supplier STMicroelectronics announced that the two parties will cooperate on Tencent_sqlquote_s latest IoT operating system TencentOS Tiny.
Analysis of quality problems in led lamp detection
In addition to clothing, food and shelter in life, LED lighting is also a common and widely used item. With the advancement of society, people have become more dependent on the application of artificial light. Commonly, there are household LED energy-saving lamps, LED plant growth lamps, etc. Today Let_sqlquote_s talk about the quality inspection of LED energy-saving lamps.
National Tobacco Monopoly Bureau: E-commerce platform should close e-cigarette stores in time and remove e-cigarette products in time
According to the National Tobacco Monopoly Administration on November 1st, the State Tobacco Monopoly Bureau issued a notice on further protecting minors from e-cigarettes (No. 1 of 2019).
What is NB-IoT (narrowband Internet of Things)? What are the main applications of NB-IoT?
The Narrow Band Internet of Things (NB-IoT) has become an important branch of the Internet of Everything. NB-IoT is built on a cellular network and consumes only about 180KHz of bandwidth. It can be deployed directly on GSM networks, UMTS networks or LTE networks to reduce deployment costs and achieve smooth upgrades.
What is the difference between 5G 4G 3G?
5G? ? ? No one can tell now what 5G will be, and don_sqlquote_t think so far. The difference between 3/4/5G has been mentioned in the previous article and is for reference only: "Analyze communication technology: the scientific significance behind 3G, 4G, 5G". In fact, for users, the most important thing is the increase in speed and the decrease in delay. Other user experiences are derived from these two main experiences. The theory is not to be taken, we can point to something more practical in plain language.
Application of carbon dioxide sensor in building automation system
Building Automation System (BAS) is one of the main components of intelligent buildings. The intelligent building realizes the comprehensive monitoring and management of the equipment and building environment in the building (group) through the building automation system, creating a comfortable, safe, economical, efficient and convenient working and living environment for the users of the building, and optimizing the operation of the equipment and Management, reducing operating expenses.
Counting the unknown loopholes in smart homes, guarding your home security
With the arrival of 5G, consumption upgrades and technological development, smart homes have officially entered a period of rapid development. Whether it is the industry insiders or the ordinary people, I believe that I have already seen the huge potential of smart homes in the future market. It can be said that the smart home is a "fragrant", and people want to take a bite.