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With the development of identification technology, people’s requirements for intelligent systems are constantly improving. Advanced RFID radio frequency identification technology is required to realize automatic card reading and identification for personnel entering and exiting the gate of the unit. It is no longer necessary to take the card as before. Come out, get the card reader and swipe it to check attendance. As long as you have a card on your body, you can realize automatic attendance without taking out the card, automatically open the door, put the card on the car and automatically open the gate, and automatically count the number of people and track the movement track. At the same time, it is also required to reflect the more humanized and intelligent technology. The smart card for employees can be carried freely without giving employees the feeling of being under control, and it is convenient for employees to use.
Or transform the long-distance automatic identification system on the original IC/HID card all-in-one card system, keep all the original IC/HID card all-in-one card system, and modify the long-distance card reader where long-distance identification is required, put the IC/HID card Insert CyhertagTV6 induction card, realize long-distance automatic identification on the long-distance card reader, and still use IC/HID card on the original system, the two cards do not affect the reading distance of each other.
1. Project requirements
A large-scale enterprise, in order to strengthen the management of the number of personnel in the enterprise, requires the use of non-contact proximity cards to track and record the entry and exit of each person in the workshop, so as to achieve high-efficiency automatic identification requirements and count the number of personnel in the workshop.
1. The induction card carried by the personnel should be freely carried. The card can be placed in the personnel’s pocket, bag or hung in front of the personnel as an ID card.
2. The sensing distance of the card can’t be too far or too close. If it is too far, the personnel will generate wrong records when passing by the channel. If it is too close, the channel will not be sensed if the channel is too wide.
3. In order to reflect the care of human nature, the card cannot be directional and can be placed arbitrarily, and personnel cannot be required to place the card in order to identify it.
4. The system must have multiple identification and anti-collision capabilities. There are many people entering and leaving the workshop at the same time during peak hours. The system must ensure that all cards can be accurately identified at high speed.
5. The system must accurately determine the direction of entry and exit of personnel, and cannot simply record events to prevent the occurrence of fake entry and exit.
6. The radio frequency signal generated by the card reader and the proximity card must not be harmful to the human body, because people spend a large part of their time moving within the signal range, and the safety of everyone cannot be abandoned for the convenience of management.
2. On-site situation
The company has 1 workshop with a total of 13 doors. It requires that personnel entering and leaving can display the information of employees entering and leaving in real time, count the number of people in the workshop, and give early warning to the number of people.
3. The working principle of the system
This system adopts the latest British CypherTag® series TV6 proximity card and RVR1 card reader. CypherTag® is a new generation of low-frequency radio frequency automatic identification brand developed by British Adentec Co., Ltd. CypherTag® series proximity card and reader is a true fast, long-distance proximity RFID product, with a reading distance of up to 3 meters, a coverage channel width of 3 to 32 meters, and can identify up to 80 proximity cards at the same time , the card reading speed can reach 80 km/h, so it can accurately identify and track the direction of fast-moving objects or people. In the field of low frequency RFID, CypherTag® induction technology is at the world’s leading level.
The working mechanism of CypherTag® series long-distance induction products is: each induction card has a 64-bit number. When the induction card is present in the reading range of the card reader, the induction card is continuously transmitted by the card reader. Electromagnetic inquiry The signal is activated to feed back a response signal carrying the inductive card number to the card reader. It is through the signal inquiry and response between the inductive card and the card reader that the card reader can accurately and quickly identify the inside of the inductive card. and output the read inductive card number to a computer, external controller or other terminal equipment according to a certain output format, so as to realize the identification of the inductive card.
The management center sends a card to each person. When the person passes near the card reader (3 meters reading distance), the card reader can sense the card and transmit the information (card number) in the card to the local controller. The controller transmits the received card number to the management software, and the management personnel can monitor and manage the entry and exit of each door in real time, and directly use the entry and exit data of the personnel as the attendance data. In addition, the proximity card is not easy to copy, safe and reliable, and has a long life (the non-contact card reading method reduces the mechanical wear of the card to zero).
The system can be divided into many clients. The dormitory management personnel can sit in front of the monitoring computer to know the entry and exit of the entire dormitory. According to the real-time monitoring function of the computer, they can judge whether to go to the site for inspection, and at the same time, they can monitor the entry and exit of personnel and alarm events. and other information for viewing, printing and archiving.
Fourth, the overall design of the system
1. System network structure
2. System installation diagram
Workshop door access: Mode 1 (underground antenna, access door within 3 meters)
Workshop door access: Mode 2 (erect it beside the workshop door, the workshop door access is less than 2.5 meters)
Workshop door passage: Mode 3 (erect beside the workshop door, the workshop door passage is greater than 3 meters and less than 6 meters)
Mode 4 (Buried in the workshop door, the workshop door channel is greater than 3 meters)
five.System equipment selection instructions
According to the requirements of the enterprise, combined with the site conditions, Sun Electronics has formulated the following solutions for customers.
1.proximity card
Using the British CypherTag low-frequency long-distance proximity card, there are two models to recommend, TV1 and TV6. The sensing distance of the two cards is exactly the same. The features of the product are as follows:
European famous brand CYPHERTAG
CypherTag TV6 ID type long-distance proximity card (replaceable battery)
Product Features:
Long-distance identification: card reading distance is 3 to 4 meters
Anti-collision: 80 proximity cards can be recognized at the same time on the RVR1 card reader
High accuracy: less than 1 in 100 million false readings
High security: private encryption protocol, random communication data
Self-test: automatic output of battery status
Beautiful and practical: can be used as ID card, can print name, photo and other information
Self-sleep: leave the induction area to automatically sleep
Anti-liquid: the signal passes through the liquid sensing distance without any change
Anti-human body: The sensing distance of the card on the human body does not change, and the card is not missed when many people are crowded in and out.
technical parameter:
Card number: 64-bit encoding, optional output digits
Dimensions: 95 x 64 x 5 mm
Weight: 30 grams
Working life: with battery, the battery life is more than 3 years, the battery can be replaced, it can still be used normally for 1 to 2 months after the low battery voltage, and output prompt information.
Material: Bright gray ABS shell, can be inserted into a PVC material ISO standard label, can print name, photo, unit and other information as a certificate. It can also be combined with the company’s original IC card and HID card as a composite card. IC card, HID card can be inserted into TV6 card. It can not only realize long-distance automatic identification on the long-distance card reader, but also swipe the card on the short-distance card reader system without affecting each other.
Working temperature: -20～+60℃
Operating humidity: 0 – 80% non-condensing, mildly waterproof
Working frequency: transmitting frequency 4MHz, receiving frequency 125KHz;
CE, DTI & US FCC certification
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