Integrated phase control array fingerprint sensor

A fingerprint sensor and phased array technology, applied in the field of sensors, can solve problems such as inability to wake up and high power consumption of sensors, and achieve the effects of improving recognition rate, saving installation space, and small size

Pending Publication Date: 2017-09-08
XINFOO SENSOR TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above problems, the present invention provides an integrated phased array fingerprint sensor with high fingerprint recognition rate and accuracy and can solve the problems of high power consumption, inability to wake up and motion alarm of a single sensor.

Method used

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Embodiment Construction

[0019] Combine below figure 1 with figure 2 , the embodiment of the present invention will be described in detail. This embodiment is carried out on the premise of the technical solution of the present invention, and the detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following implementation example.

[0020] The invention discloses an integrated phased array fingerprint sensor, which includes a circuit board, such as figure 1 As shown, the circuit board is equipped with a microcontroller, a phased array transceiver module for transmitting and receiving wireless signals, a gyroscope, an acceleration sensor, an analog matrix switch for signal switching, an A / D conversion module and a power supply module. The microcontroller is used to process the information of the real-time phased array transceiver module, gyroscope and acceleration sensor, and the power module is used to supply power...

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Abstract

The invention discloses an integrated phase control array fingerprint sensor. The sensor includes a circuit board provided with a microcontroller, a phase control array transceiving module used for fingerprint recognition, a gyroscope, an acceleration sensor, an analog matrix switch used for signal switching, an A / D conversion module and a power source module used for power supply. The phase control array transceiving module, the gyroscope and the acceleration sensor are connected with the input terminal of the A / D conversion module through the analog matrix switch. The output terminal of the A / D conversion module is electrically connected with the microcontroller. According to the invention, phase control array principle is applied to fingerprint recognition, so that recognition rate and accuracy are improved. The gyroscope and the acceleration sensor are integrated to the phase control array fingerprint sensor in an integral design, so that the structure is simple and the size is small and influence on sensor signals by the external environment is reduced and the stability of the sensor is improved. The invention solves problems of high power consumption and incapability of waking and mobile alarm of a single fingerprint sensor.

Description

technical field [0001] The invention relates to sensor technology, in particular to an integrated phased array fingerprint sensor. Background technique [0002] The fingerprint sensor is the key device to realize the automatic collection of fingerprints. Due to the uniqueness and portability of fingerprints, fingerprint sensors have been widely used in the fields of identity information authentication and identification such as financial payment, security facilities, and attendance systems. [0003] Traditional fingerprint recognition methods include optical recognition and capacitive recognition. Among them, the defect of the capacitive recognition method is that the recognition rate for dirty fingers and wet fingers is low. The current relatively advanced fingerprint identification technology is radio frequency fingerprint identification technology, but the frequency and phase of the radio frequency signal used are single, so its detection depth and dimension are limited...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
CPCG06V40/1306
Inventor 赵照
Owner XINFOO SENSOR TECH CO LTD
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