The type of biometric technology!

The biometric identification system mainly includes:

1. Fingerprint: It is currently the most mature and widely used biometric product. When we talk about fingerprint identification, the most frequently touched technical terms are the rejection rate and the false acceptance rate. The so-called rejection is that the fingerprint data in the system is rejected. The so-called false recognition is that the fingerprint data is not accepted in the system. In fact, in practical applications, the problems we face are mainly not the rejection rate and false-positive rate, but the disapproval rate (users who cannot use fingerprint recognition). For the domestic fingerprint machine, if the rejection rate can be < 5%, the rejection rate of the Korean import fingerprint machine can reach <1%. We have a fingerprint project in Liaoning with more than 2,400 users. With the Korean bioentry plus fingerprinting machine, there are only 20 users who cannot apply fingerprints. This is very remarkable in fingerprinting projects. Fingerprint recognition is suitable for occasions where the number of users is relatively small, and is usually suitable for company access attendance. Special Shou Technology (Shenzhen) Co., Ltd. Acting South Korea Suprema fingerprint machine for its excellent system stability, excellent fingerprint algorithm, access to the world's fingerprint recognition contest (FVC) champion. The smallest error rate in light category is considered to be the most reliable fingerprint solution in the world, and its superior technical strength ensures the best stability and reliability of customer products and application software.

2. Hand shape: Technology and products are also relatively mature, but due to their large size and high price, they limit the application. HandReaders are more suitable for use in factories, construction sites, governments, and financial institutions. The United States Ingersoll Rand HandShaped Instrument Acting by ShouSheng Technology (Shenzhen) Co., Ltd. is the United States Dr. GARRETT. After many years of biometrics technology experiments, it was found that the three-dimensional shape of the human palm is just like a fingerprint. It is everyone. Different from each other can be used as identity recognition features. After more than a decade of product improvement and technology research and development, the accuracy, stability, and practicality of the current palm recognition system products have been recognized and adopted by the market.

3. Face shape: Face recognition is currently divided into two categories: two-dimensional face recognition, three-dimensional face recognition. Face recognition in China is all two-dimensional, and there are only three-dimensional face recognition manufacturers in the world: Canadian bioscrypt company, agents: special science and technology. Face recognition advantages: Non-contact recognition, 3D face recognition speed up to 0.4 seconds. Domestic two-dimensional face shape instrument, I tried five or six manufacturers, two-dimensional face recognition, recognition speed is also about one second; disadvantages: two-dimensional face recognition, the current by the light, makeup, wearing glasses and other relatively large impact, use not convenient. The three-dimensional facial shape meter is a near-infrared light recognition, which is not affected by the makeup of light, but the price is high. The three-dimensional face shape meter is suitable for applications with high safety requirements and convenient and quick use. The three-dimensional face shape meter is non-contact recognition and can be used with a gate machine to realize a barrier-free channel. The Bioscrypt 3D facial shape monitor (formerly A4VISION) is the only 3D facial recognition device in the world. It uses patented optical technology, target orientation and camera tracking technology, and high-speed computing capability to identify algorithms. Set its 3D facial metrology and photography tracking system. Bioscrypt 3D face recognition device is non-contact recognition. It works in the invisible infrared wave band, and it can be used to accurately identify and confirm the mobile state. It is fully applicable to the real environment of the living environment.

4. Iris: It is one of the products with the lowest misidentification rate. It can reach one millionth of its accuracy, but it is subject to more restrictions due to its inconvenience, high price, and large size.

The biometric access control system is divided into product functions:

1. All-in-one: Biometric front-end and access control are integrated in a single enclosure. Its general function configuration is: Time zone, combination, group, double/multiple person access options, tamper alarm, alarm output, door magnet Input (to judge whether the door is opened illegally, the door is not closed), exit button, doorbell interface, at least 3A electric lock relay output, LCD display, keyboard input, and TCP/IP, RS485, RS232 networking. In general, there is a need for user capacity of more than 500 users (three feature points per user), whether to support password entry and exit settings, etc. These functions are general access control requirements. Since all-in-one machines are also associated with the front-end unit, the security of their products has certain limitations, and they must be used prudently in places where security requirements are high.

2. Separate front-end reader, ie, biometric reader: it can output a standard reader connection format, and can upload, download, etc. the fingerprint through the networking (TCP/IP and RS485). Other features such as adding fingerprint recognition, tamper switches, duress output, etc. to existing RF card readers. Access control is accomplished by the associated access controller. Now professional access controllers have been able to complete not only in and out functions, such as GE, Honeywell, LENEL, PCSC, Hearst and other internationally renowned access control brands, are already standard integrated security systems, and can Integration and integration of systems including monitoring and alarming, etc., and the use of biometric front-ends and professional access control systems are currently the main application of access control systems.

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Corrosion-Resistance Alloy

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