Module circuit design of optical fingerprint identification system based on ARM

The system uses optical fingerprint sensor and arm cortex m3 core stm32f205re, a 32-bit high-performance single chip microcomputer of Yifa semiconductor company, to form the functional main body. It uses Sobel edge detection operator, Gabor filter, image binarization and other image acquisition and processing algorithms to identify the fingerprint image, and constructs a small embedded […]

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Circuit diagram daily reading (27): circuit design of anti-theft remote controller using fingerprint identification

An anti-theft remote controller suitable for various access control occasions is designed, which has the functions of living fingerprint identification, RF wireless remote control, wireless encrypted data transmission, wireless encrypted command control and so on. The system takes 16 bit msp430f12x processor as the data processing and control core, which improves the intelligent level and […]

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Design of USB interface circuit for embedded fingerprint identification system

In the automatic fingerprint identification system, embedded system has been more and more widely used because of its low power consumption, small equipment volume and high security. Universal serial bus (USB) is a microcomputer bus interface specification jointly formulated by Inter, Microsoft, IBM and NEC. It has high transmission rate, supports plug and play, occupies […]

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What kind of biometric technology can have the future

What is biometric? Through the close combination of computer with high-tech means such as optics, acoustics, biosensors and biostatistics, and using the inherent physiological characteristics of human body (such as fingerprint, face image, iris, etc.) and behavioral characteristics (such as handwriting, gait, etc.) to identify personal identity, it is biometrics. It is still very rare […]

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Circuit design of embedded fingerprint lock system

Embedded fingerprint lock is widely used in many fields, such as safe, laboratory, corridor identification and so on. This paper designs and implements the embedded fingerprint lock based on the fingerprint identification module, and gives a relatively complete software and hardware design scheme. The hardware structure of fingerprint identification door lock system mainly includes: fingerprint […]

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Circuit design of palm recognition data acquisition system

Biometric identification technology refers to the use of the inherent physiological or behavioral characteristics of the human body for personal identification. Some representative physiological features include fingerprint, palm shape, face shape, iris, retina, sound, etc., but iris recognition, face recognition, sound recognition, fingerprint recognition, etc. there are some problems, such as expensive equipment, greatly affected […]

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Interface circuit design of face recognition attendance machine

Face communication attendance machine is the world’s first embedded face recognition machine, with a false recognition rate of less than 1 / 100000 and a rejection rate of less than 1%. In the field of biometrics, it can be said that it is quite accurate. It is an offline version. It can be used without […]

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Circuit design of speaker independent speech recognition system based on ARM

The ultimate purpose of speaker independent speech recognition technology research is to enable computers and other devices to “understand” human speech, extract the specific information contained in speech, and become the most convenient means of human-computer communication and interaction. Because the speech signal itself has uncertainty, dynamics and continuity, it brings great difficulties to accurately […]

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Design of circuit module of fingerprint identification system based on ARM9

The working principle of biometrics is to use biometric equipment to sample biometrics, extract their unique features and convert them into digital codes, and further form feature templates. When people interact with the identification equipment for identity authentication, the identification equipment obtains their features and compares them with the feature templates in the database to […]

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