A hand recognition non-contact identification system

A non-contact, identity recognition technology, applied in the field of security recognition, can solve the problems of hand recognition being difficult to use and cannot be combined naturally, and achieve the effect of small size

Active Publication Date: 2018-04-03
上海百芝龙网络科技有限公司
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0006] However, there are two problems in the existing hand recognition methods. One is that the hands must all be in contact with the recognition instrument, at least the main feature area to be recognized must be in contact with the device to recognize the hand; the other is that the recognition device requires the user to Makes predetermined movements that don't come naturally into everyday life
Therefore, the existing hand recognition is difficult to use in life scenes, and it is more used in special scenes such as access control

Method used

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  • A hand recognition non-contact identification system

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Embodiment Construction

[0032] The invention provides a non-contact identity recognition system based on hand recognition. The system includes a sound collection module, a sound output module, a central processing module and a communication module.

[0033] Such as figure 1 , as shown in 2, the sound collection module includes three miniature directional microphones for receiving sound information coming from a 180° hemispherical direction, each microphone can receive sound coming from an angle of about 120°, and transmit the sound information to the central processing module;

[0034] As shown in Figures 1 and 2, the sound output module includes three micro-speakers for sending sound to a 180° hemispherical direction.

[0035] The affiliated central processing module is used to process the sound received from the microphone, and is responsible for sending voice commands to the speaker, processing identity recognition calculations, and sending the recognition results to the communication module;

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Abstract

A hand-identification non-contact type identification system is provided. A central processing module gives out an instruction to a sound playing module; the sound playing module sends short ultrasonic waves to a user hand; a sound collection module receives hand ultrasonic wave echoes and sends the same to the central processing module; the central processing module analyzes the received ultrasonic wave information to acquire biological features and compares the features to a registered biological feature base; a communication module transmits a biological feature comparison result to a third-party device; the sound collection module comprises three micro directional microphones distributed in a triangular shape to receive sound information from a 180-degree hemispherical direction; each microphone can receive sound from a 120-degree direction and sends the sound information to the central processing module; the sound outputting module comprises three micro loudspeakers distributed in a right-triangular shape to sends sound to the 180-degree hemispherical direction.

Description

technical field [0001] The invention belongs to the technical field of security identification, and in particular relates to a non-contact identification system for hand identification. Background technique [0002] The existing identification technology basically uses biometric identification and behavioral identification as identification methods. Biometric features that have been used for biometric identification include hand shape, fingerprint, face shape, iris, retina, pulse, auricle, etc., and behavioral features include signature, voice, and keystroke strength. [0003] There are four main non-contact identification methods, which are image recognition using a camera, voice recognition using a microphone, recognition through ultrasonic waves, and recognition by wearing markers. [0004] Among them, ultrasonic waves have good directionality, high energy carrying capacity, transmission, reflection and refraction effects, and are similar to light waves. Therefore, the m...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/32
CPCG06F21/32
Inventor 叶伟
Owner 上海百芝龙网络科技有限公司
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