RFID remote sensing conference report system solution
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1. Introduction to the system
The remote proximity card conference registration system is a high-tech product that integrates low-frequency radio frequency automatic identification technology, network technology and projection technology. The delegates participating in the meeting each wear an induction card. When they arrive at the registration entrance, the nearby card reader can quickly identify each induction card, so as to achieve the purpose of automatic registration for the meeting and real-time display of the name of the representative’s photo and statistical results.
The traditional conference registration is carried out by distributing conference tickets. Compared with the proximity card conference registration system, its disadvantages are:
1. Every time you have a meeting, you have to print out a lot of various meeting tickets. Like the annual National People’s Congress and CPPCC meetings, it is necessary to issue several conference tickets in different colors to each delegate. Because of the large number of tickets, delegates often lose conference tickets or forget to bring conference tickets during the meeting.
2. When registering, you need to check the tickets one by one, which affects the speed of admission. Under normal circumstances, the representatives who register are all entering the venue in batches, so admission is often crowded.
3. Meeting tickets can be transferred to each other, so there is a possibility of replacing the meeting.
4. During the statistics, the staff need to count the votes one by one, because the votes are counted manually, errors will inevitably occur. And the statistics are slow.
5. It is impossible to know the names of the representatives of those who have not arrived in time. If it is a meeting of thousands of people, it is impossible to even find out who is here and who is not.
6. Manual ticket checking and counting are not open and fair.
Compared with the current popular contact magnetic card or IC card, the induction card conference registration system has the following advantages:
1. Long service life. The battery life in the proximity card is 3 years. The battery can be replaced at any time after the battery is used up, so it can be used for a long time.
2. This system uses a remote proximity card and card reader, so the representative does not need to remove the card from the chest and insert it into the card reader (or card reader) to complete the registration, but directly pass the registration entrance “if nothing happens” Then, the nearby card reader will complete the check-in procedure for you accurately. However, it is not possible to use contact magnetic cards or IC cards to report.
3. The TC6A proximity card used in this system is specially designed for conference registration. An ISO plastic card can be inserted into the proximity card, and personal information such as the name of the representative photo can be printed on the plastic card. If the conference name or representative information changes, You only need to replace the plastic card in the proximity card, you don’t need to change the proximity card. The contact magnetic card or IC card directly prints the photos on it, so every time you have a meeting, you must replace it, which invisibly increases the cost of conference affairs.
4. Conference delegates can enter the venue with a proximity card, one per person. You can participate in various meetings with a proximity card.
5. When a representative wearing a legal proximity card arrives at the check-in entrance, the nearby card reader will automatically read the information carried by the proximity card, and the computer at the entrance will immediately display the representative’s name, photo, identity and other information, as well as the presence of the representative and The number of unrepresented persons. The check-in information at the entrance is transmitted to the computer in front of the rostrum through the network, and the computer reflects the meeting report status on the large screen in front of the rostrum through the projector in real time. Achieved fair and open reporting.
6. A computer can be placed in the VIP room of the meeting as needed, so that the leader of the VIP room will also know the situation of the meeting report in real time.
7. You can check the names of the representatives of those who haven’t arrived at any time.
Compared with other 1m induction distance (125K: EM ID card, 13.56M: enhanced IC card), the CENSUS induction card conference registration system has the following advantages:
1. Long service life. The overall cost is lower. The battery life in the proximity card is 5 years. The battery can be replaced at any time after the battery is used up, so it can be used for a long time.
2. This system uses the long-distance proximity card and reader of the famous British brand CENSUS, which won the Royal Technological Innovation Award in the United Kingdom. The card reading distance can reach 3 meters. The card has no directionality and can be placed anywhere on the body. For example, it can be placed in any angle at any angle, such as in a foreign trade or a purse. Therefore, the representative does not need to fix the card in any position to complete the registration, but directly pass the registration entrance “if nothing happens”, and the nearby card reader will be accurate and correct. You complete the check-in procedure. However, a card reader with a sensing distance of 1 meter cannot do this.
Suppliers of card readers at a distance of 1 meter generally tell customers that the sensing distance can reach about 1 meter, but the actual effective distance is only about 60 cm. The card must be at a fixed angle with the reader antenna, and there should be no objects in the middle. Cover or shield, otherwise the card will not be read. For this reason, the supplier often adds an antenna to increase the signal coverage. Two pairs of antennas are used to place one antenna each around the 1-meter channel, but the two antennas are paired. The mutual sensing distance has a certain influence, and the sensing distance of each antenna will be short again. Since the principle of this card reader stipulates that the card must maintain a certain angle with the antenna, and the actual personnel have too much arbitrariness when passing through the channel, the angle between the card and the antenna cannot be in accordance with the requirements of the antenna, which is doomed There will be cases of missing cards.
2. The TC6A proximity card used in this system is designed for conference registration. An ISO plastic card can be inserted into the proximity card, and personal information such as the name of the representative photo can be printed on the plastic card. If the conference name or representative information changes, You only need to replace the plastic card in the proximity card, you don’t need to change the proximity card, the card can be reused. Cards can be divided into red, pink, blue, white and black colors. Passive cards with 1 meter distance readers directly print photos on the card, so every time you have a meeting, you must change it, and the price of the card is relatively high, which invisibly increases the cost of conference affairs.
3. The CENSUS long-distance card reader can recognize 55 proximity cards per second, and the passing speed can reach more than 60 km/h. Therefore, dozens of people can pass through the passage at the same time, even at a running speed. Nothing was missed. In the 2000 Sydney Olympics, CENSUS long-distance card readers were used to identify the passing time of thousands of marathon runners;
The card reader at a distance of 1 meter recognizes 7 cards at the same time per second, the maximum passing speed does not exceed 15 km/h, and the faster the passing speed, the shorter the sensing distance becomes, and it is easy to fail to read when a large number of people enter. Card. The passage is often made into a passage where only one person can pass, restricting the entry and exit of a large number of people, resulting in queuing and waiting at the scene, which has no much advantage over short-distance card swiping.
4. The width of the general venue channel is basically about 2 meters. The use of 1 meter sensor distance card reader has to artificially place obstacles on both sides of the channel to reduce the effective width of the passage, which reduces the efficiency of admission and makes people feel more depressed ; The sensing distance of the CENSUS long-distance card reader is 3 meters, which completely covers the entire channel, so people can enter the channel smoothly and automatically report. The CENSUS long-distance card reader can also connect up to 16 antennas, which are arranged side by side. (For example, the antenna is directly laid on the ground), the signal coverage can reach tens of meters, and it can be used to report directly to the ultra-wide gate of the open conference venue.
5. The CENSUS long-distance card reader is easy to install, the whole system is movable, and it is convenient to report in multiple venues (many meetings are held in different places every year); the antenna is simple to make, and the antenna is directly wound into a box by a single wire Composition, can be directly buried in the door frame or concealed installation on the ground, passers-by can not see any obstacles, can also be placed in a stainless steel frame or a plastic welcome card, the size is flexible, and mobile.
The 1m distance card reader antenna is a fixed shape, which is relatively heavy and it also affects the appearance of the venue.
6. The CENSUS card reader works at low frequency, the transmitting frequency is 153KHZ; the receiving frequency is 115KHZ; it is equivalent to the frequency of FM broadcasting, which is not harmful to the human body.
Because some card readers use passive cards, the signal strength is low, so the transmitting power of the card and antenna is increased, but too high power and frequency are harmful to the human body.
2. The working principle of the system
This system integrates automatic identification technology, computer network technology and projection technology to form an integrated system for meeting automatic registration.
The card worn by the conference delegates is called the conference card. It consists of two parts, namely the proximity card and the representative card. The core of the conference card is the proximity card part.
The British Census® series TC6A proximity card and CR1A card reader used in this system are a new generation of low-frequency radio frequency automatic identification system developed by the British Aidentec Co., Ltd. Census® series proximity cards and card readers are truly fast and long-distance induction radio frequency identification products. The card reading distance can reach 3 meters, the coverage channel width can reach 3 to 32 meters, and it can recognize up to 55 proximity cards at the same time. , The card reading speed can reach 60 km/h, so it can accurately identify and track the direction of fast-moving objects or people from a long distance. The Census® series of remote sensing products won the British Technology Innovation Award in July 1997. In the field of low-frequency radio frequency identification, Census® induction technology is at the world’s leading level. The working mechanism of the Census® series of remote sensing products is: each proximity card has a 64-bit number. When the proximity card is within the reading range of the reader, the proximity card is continuously emitted by the reader. The signal is activated, and a response signal carrying the proximity card number is fed back to the reader. It is through the inquiries and responses between the proximity card and the reader that the reader can accurately and quickly identify the proximity card. It carries the number, and outputs the read proximity card number to the computer, external controller or other terminal equipment according to a certain output format, so as to realize the identification of the proximity card.
When the representative wearing the proximity card comes to the entrance of the check-in terminal, the nearby card reader transmits the read proximity card number to the check-in terminal via RS232, and the check-in terminal transmits the data (the read proximity card number) through the computer network ) To the remote computer server. In this way, the check-in terminal and the query terminal connected to the server can update the data in real time: the check-in terminal displays real-time information such as the photo and name of the channel representative, and the query terminal displays the real-time situation and statistical data of the meeting report in real time, such as the number of people, The actual number of people and the number of people who have not arrived.
3. The composition and introduction of each part of the system
This system consists of proximity card, card reader, computer, projector, projection screen, HUB, system software and 12V switching power supply.
1. TC6A proximity card
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The proximity card used in this system is the TC6A proximity card, which is a long-distance card, used with CR1A card readers, and has the following characteristics:
Fast recognition, the recognition speed can reach 60km/h;
Multi-reading, it can recognize up to 55 proximity cards at the same time per second, which means that even if up to 55 conference delegates arrive at the check-in channel at the same time, the card reader can accurately read all 55 proximity cards without error. One omission.
Read from a distance. Reading range up to 3 meters. When the proximity card is 3 meters away from the reader, the reader can recognize the proximity card. Therefore, the delegates participating in the meeting do not need to remove the proximity card worn on their chest, but can directly enter the passage “if nothing happened”. There is no need to worry about whether the proximity card will be read by the card reader if it is not removed from the chest, because “3 The product feature of “meter reading range” is sufficient to ensure 100% recognition rate of the proximity card.
64-bit card encoding, disorderly encrypted communication, misreading rate is less than 1 in 1 billion, reading card has no direction limit, can be read at any angle of 360 degrees, low frequency work—–no harm to human body, all Automatic identification, CE, DTI, FCC certification.
However, traditional proximity cards (or read-only cards, proximity cards) and other automatic identification products such as barcodes, magnetic cards, IC cards, etc. cannot meet the requirements for automatic tracking and identification of fast-moving people, let alone multiple moving objects at the same time. Or identification of personnel. The TC6A proximity card and CR1A card reader products used in this system provide a solution for the identification and tracking of multiple people walking fast, and solve a major problem in the field of automatic identification.
The physical parameters of the TC6A proximity card are as follows:
Size: 96×64×5mm, standard credit card can be inserted
Weight: 18 grams
Life: The card is equipped with a high-energy lithium battery, the battery model is CR2025, the normal battery life is 3 to 5 years, and it can be replaced when it is used up.
An ISO plastic card printed with personal information such as the representative’s name, photo, etc. can be inserted into the card. Depending on the name of each meeting and the change of the representative’s name, the proximity card can be inserted into a different plastic card, that is, the representative card.
How to wear the conference card:
The user can choose the way of wearing the conference card, either with a sling on the chest or with a plastic clip to fix it on the chest.
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