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An introduction to RFID personnel location:
RFID (Radio Frequency Identification Technology) was first born out of radar technology and improvements during World War II, and laid the theoretical foundation for radio frequency identification technology in 1948.At the end of the last century, it entered the commercial application stage. At the beginning of this century, with the rise of the concept of Internet of Things, people paid more attention to it.electronic labelThe cost of RFID continues to decrease, and the field and scale of application are getting larger and larger, and what this article describes is the application of radio frequency identification technology in the field of personnel positioning, that is, the application of RFID personnel positioning.
The composition and characteristics of the RFID system
RFID technology is easy to control, simple and practical, especially suitable for automatic control:
1 There is no need for direct contact or aiming during recognition, and no manual intervention is required, which greatly improves the accuracy of recognition.
2 The security of the technology is very high, and it is difficult to be identified, counterfeited, or intruded.
3 Technical read and write modifications can be made to the data.
4 Data integration with a large amount of information can be carried out
Generally speaking, the RFID system basically includes the following three parts:
1 Reader
The equipment used to read and write electronic label information is generally divided into two types: handheld and fixed
2 Electronic label
Composed of a coupling element and a chip, each electronic tag has a unique electronic code, which is attached to the object to identify the object
3 antenna
Its role is to transmit radio frequency signals between the electronic tag and the reader.
In practical applications, the electronic tag is attached to the object,ReaderThe information on the electronic tag can be read and identified at a long distance through the radio frequency signal, so as to achieve the purpose of automatic identification. (In the application of personnel positioning, the electronic tag is attached to the person’s body).
Three RFID personnel positioning application range
At present, RFID personnel positioning is more widely used indoors, generally in high-end office buildings, companies with high requirements for information security, nursing homes, hospital inpatient departments and other industry areas.
The needs of the above industries are usually summarized as follows:
1 The area and location of the person in charge
2 Access management
3 Need for fast and efficient access management
The following functions can be achieved by using RFID personnel positioning:
1 Personnel movement track playback function, including stay time points in each area
2 Personnel illegal path alarm function, when the person does not walk in accordance with the established area, the system can compare the location and the established location through the system, and report to the relevant personnel if there is a discrepancy
3 Authority management function, alarm when personnel enter an unauthorized area
4 Automatically record the entry and exit of personnel, without manual intervention, and does not affect the normal work of personnel
Tianjin Little Bee has long followed the concept of being good at heart and simplicity and engaged in the development and service of RFID technology application fields. It is believed that the Internet of Things represented by RFID technology will surely promote the information industry into the third wave.
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