Haohai Yitong Technology’s barrier-free identity recognition technology solution
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one.demand analysis
The organization and management of personnel is complex. Because the number of participants is difficult to identify from memory, an important core of management is to effectively identify and count personnel.
The current management identification generally uses two methods: manual verification of certificates and smart card certificates. They still have the following main shortcomings:
Manual verification of documents is inefficient, cannot guarantee accuracy, and is inconvenient for automated statistics.
Ordinary smart cards require people to show their credentials and swipe their cards at a designated place. It is unavoidable that they are unwilling to sign in when there are too many people. If this type of swiping in and out mode is adopted, it is completely undesirable in terms of etiquette and convenience, and it is not conducive to the realization of humanity by participating organizations. Management.
Combining the needs of organizational work, a more ideal sign-in and identification scheme needs to have the following characteristics:
Extremely high anti-counterfeiting features make the documents unforgeable
No need to swipe the card at the designated place, just pass the necessary road at normal walking speed to be recognized
Someone like identification means to judge whether the card holder is himself
Able to warn of missed reading
The RFID conference barrier-free identification system developed and produced by our company, with high anti-counterfeiting and remote identification RFID electronic tag technology as the core, supplemented by digital camera and infrared sensing technology, basically meets the needs of modern large-scale important conferences for identification work .
two.System Components
The main components of the RFID barrier-free identification system are as follows:
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As can be seen from the above schematic diagram, when the wearing certificate passes through the channel formed by the RFID sensing device, radio frequency and infrared sensing will occur. The radio frequency sensing information is the certificate information of the participants, and the inspection host determines the validity of the certificate; as long as someone passes, infrared induction will occur, and the system will immediately activate the camera to capture the face of the passer. If the certificate is valid, the inspection host will call up the original information of the participant including the photo, and the management staff will check whether the captured image and the data image (including direct observation of the face) are the same person. The entire identification process is accurate Linkage, accurate, efficient and fast.
Among them, the detailed information and performance of the channel-type RFID induction device are as follows:
● Photos (single appearance):
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● Performance characteristics:
The antenna has been optimized and carefully adjusted, and the antenna has infrared detection function. The antenna has a sound and light alarm device. The antenna comes with a powerful IO control board. The antenna can be connected to a high-power long-distance reader that complies with the ISO15693 standard.
● Technical parameters:
1: Antenna model: RR -G02
2: Antenna working frequency: 13.56M
3: Antenna input impedance: 50Ω
4: Antenna size (height×width) 156CM×53CM
5: The card reading distance of the antenna (dual antennas are opposite):
Install 4W reader: 110~120CM
Install 1W reader: 80CM
● Installation requirements:
1: The antenna can be placed flat on a level ground.
2: The antenna base can be fixed on the ground with screws.
3: Wiring method:
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two.work process
The RFID sensing device is the core part of the system, and its top view of the sensing area is as follows:
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It can be seen from the above schematic diagram that a normal passing process will enter the radio frequency identification area twice and cut infrared rays twice, which can avoid blind reading to the greatest extent. Cutting infrared rays twice will also determine whether personnel enter or The meaning of leaving. Of course, the primary significance of setting up infrared recognition is to provide a warning when the radio frequency recognition does not indicate. It can be seen from the schematic diagram that the radio frequency identification capability is the weakest when a person is standing in the middle of the passage. Therefore, when the verification piece needs to be checked repeatedly, the person must walk again.
The latest product provides 4 pairs of infrared sensing devices, which can more accurately determine the number of people entering and exiting and the direction.
A complete RFID sign-in and identification process is shown in the following flowchart:
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three.Card issuance and handheld inspection equipment
Before passing the RFID barrier-free identification system, they have obtained the RFID electronic tag representative certificate issued by the organizer. In addition to the personalized information such as the name and photo of the representative printed on the surface of the certificate, the key point is that the relevant text information such as name, title, ID number, etc. has been written into the electronic label chip encapsulated in the certificate. Since each electronic tag has a unique 64-bit ID number in the world, the tag itself cannot be forged; the text information written in the tag also adopts reliable encryption methods, and the information cannot be copied. The core technical equipment for certificate production is as follows:
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RFID Representative Certificate Writer
Features of the Secret Writer:
1: RS232 interface and USB interface are optional;
2: Voice prompt;
3: Provide DLL that supports the operating system;
4: Power supply 220VAC±15%;
5: Bring your own watchdog (WDT);
6: Support write, read, verify, and lock data functions.
In actual work, sometimes meeting management personnel need to verify the authenticity of the representative card at any time, and in order to cope with uncertain factors such as power outages, they need to be equipped with an RFID inspection handheld identification device that uses ordinary mobile phone batteries. It can read the text information in the RFID representative certificate, and can also write information into the RFID chip. Its details are as follows:
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1: The recognition distance is less than 10cm, with a level 2 Chinese character library;
2: Backlight display, easy to operate at night;
3: Built-in EEPROM storage memory, the memory capacity can be expanded, 32k, 64k, 128k, 256k can be selected, 256k EEPROM can store thousands of document records, and can be consulted at any time;
4: It can be expanded with 0~9 number keys, letter keys and dedicated operation keys, with information input function;
5: RS232 interface can communicate with PC;
6: Support wireless data communication module, which can carry out wireless data transmission;
7: The menu display content can be customized according to the user’s system requirements;
8: Support regional security code protection;
9: 3.6V lithium-ion battery power supply, standby time up to about 80 hours, (depending on usage);
10: Voice prompts and text instructions.
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