We don't even know RFID electronic tags that are common in life
Speaking of RFID, many people do not know what it is. The professional introduction is as follows. RFID (radio frequency identification system) is a non-contact automatic identification system. It automatically identifies the target object through radio frequency signals and obtains relevant data. It consists of electronic tags, readers and computer networks.
Is it particularly difficult to understand? Especially high. After reading it again and again, I don't know what it is. In fact, this technology is very common in life, and it has its shadow in medical treatment, food, transportation and other aspects.
First of all, when everyone is born, the biggest thing is to register his household registration. When he grows up, it is essential to apply for an ID card. The current second-generation ID card uses RFID. Our ID card can be sensed because the RFID chip is embedded in the ID card. After the ID card enters the sensing range of the reader, the chip uses the RF signal transmitted by the reader for electronic sensing. The chip generates a short power supply, and then transmits the information in the chip to the reader. The reader sends the collected data to the data processing center for decoding.
Secondly, most people will use access cards, such as campus cards, community cards, and company cards. In fact, each access card also uses RFID, which contains personal information. When the door lock card contacts the sensor, the sensor transmits the information of the door lock card to the system for matching. When the presence of the information is sensed, the door will be opened.
When you drive out of the parking space, have you ever thought about how the system detects and charges? In fact, this is also the application of RFID technology. By writing information on the RFID tag, the tag information can be read contactlessly using radio frequency technology, and then the information can be processed automatically.
Now when we are conducting nucleic acid detection, RFID technology is also applied to code scanning by staff. Whether it is mixed sampling or single sampling, there is a bar code on each test tube. The bar code records some personal identity information, and RFID tag detection will package a tag element at the bottom of the test tube. All identity information before measurement has already existed on this element, so low-cost digital sample management can be carried out in one step.
In this era, online shopping is a very common thing. The second problem is express transportation. It needs to be accurate and protect privacy. So RFID is also essential.
RFID technology is applied to the logistics list, as long as the sender fills in the relevant logistics information on the platform provided by the logistics enterprise before mailing the goods. When the courier collects the mail, he only needs to scan the RFID logistics list with the scanning equipment and mark the express as the collection status. During the sorting process, if the robot is used for automatic sorting, the robot will automatically sort according to the information in the RFID. During manual sorting, the sorter uses the instrument to scan out the information in the RFID and sort according to the information. RFID also plays a role in the delivery process.
Therefore, RFID is widely used in daily life.