What is RFID?

2019-07-19 16:49:54 13

RFID (Radio Frequency IDentification) technology, also known as electronic tag, radio frequency identification, is a communication technology that can identify specific targets and read and write related data through radio signals without having to identify the system and establish a machine with a specific target. Or optical contact. How many types of RFID tags are classified into passive, semi-passive (also known as semi-active), and what are the three passive and active types of active-passive RFID without internal battery, its energy is mainly through the suction and conversion reader The energy emitted. - Unlike passive and semi-passive, active RFID itself has a built-in battery that can handle sensors such as temperature, pressure, motion sensors, etc., in addition to transmitting signals themselves. 
Which technology is better to use Passive RFID (Active) or Active RFID (Active) is based on the application. Active RFID is more suitable for tracking some moving objects in a wide range. Example car. Passive RFID is an option when remote reading is not required. In general, Active RFID (active) is suitable for real-time and long-distance read recognition, while Passive RFID (passive only for short-range and very large-volume read requirements. What components make up RFID systems for radio frequency tags In the storage identification code and data radio frequency reader to read the identification code and data of the tag, the door is collected, filtered and integrated from different readers, and then the data is distributed to a large number of enterprise application companies. The application uses the data provided by the RFID system to perform calculations to provide reliable and meaningful information to the user. RFID can be applied in that aspect - Personnel Access Management - Personnel Tracking - Asset Tracking - Warehouse Management - Warehouse Management - Supply Chain Manage Real Time Locating System Real-time positioning system can track and identify objects in real-time to realize real-time positioning system with RFID. To realize real-time positioning system, you need to use Active RFID (active). Because Active RFID (active) tags can continuously transmit signals to RFID readers. All R The FID system can continuously detect where the RFID tag is located, so it can achieve real-time high-speed data transmission speed between the tag and the reader - high-speed computing function of the main computer - and long distance of Active RFID (active) Read characteristics  
What is the Global Positioning System (GPS) is a medium-distance circular orbit satellite navigation system that provides accurate positioning and speed measurement for most areas of the Earth's surface (98%). And high precision time standards.

Developed and maintained by the US Department of Defense, the system meets the needs of military users anywhere in the world or near-Earth space to continuously and accurately determine three-dimensional position, three-dimensional motion, and time. The system includes 24 GPS satellites in space; 1 master station on the ground, 3 data injection stations and 5 monitoring stations and a GPS receiver as a client. At least 4 satellites are needed to quickly determine the location and altitude of the user on the Earth; the more satellites that can be connected, the more accurate the decoded position is. How can the global positioning system be applied? The function of positioning in real life can be applied to

Vehicle anti-theft system

2. Mobile phone, PDA, PPC and other communication mobile devices, anti-theft, electronic map, positioning system

3. Anti-lost system for children and special populations

4. Precision Agriculture: Agricultural machinery navigation, automatic driving, high-precision land leveling


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