Examinee examination identity authentication system applied to big data
An identity authentication and big data technology, applied in the field of identity authentication, can solve the problems of the complex structure of the examination identity authentication system, inconvenient to carry and handle, and the effect is not obvious enough to achieve the effect of simple structure, easy portability and handling, and small size.
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Embodiment 1
[0038] An identity authentication system applied to big data examinee exams, the hardware structure is installed at the entrance of the examination room, which includes a verification platform 7 and a release device 5 arranged at the entrance of the examination room, and a pickup 1 and a fingerprint identification device are arranged on the verification platform 7 6. An RFID reader 8 and an examination admission ticket scanner 9 . The verification platform 1 is provided with a codec device 2 , a digital signal processing chip 3 and a data memory 4 . The pickup 1 is connected to the codec device 2, and the audio signal collected by the pickup 1 is input into the codec device 2 for A / D conversion. Codec device 2, fingerprint identification device 6 and RFID reader 8 are all connected with digital signal processing chip 3, and this fingerprint identification device 6 is used for collecting the fingerprint information of examinee; This RFID reader 8 is used for collecting the ID ca...
Embodiment 2
[0041] On the basis of Embodiment 1, the pickup 1 includes a pickup housing 11, a sound-introducing component 12, a fixed pressure plate 13 and a retaining spring 14, and the sound-introducing component 12 and the fixed pressure plate 13 are mounted on the sides of the pickup housing 11, respectively. Inside, the snap ring 14 is set and fixed on the inner side of the pickup housing 11 above the fixed pressure plate, and the purpose of installation and disassembly can be easily achieved through the snap ring structure, and the component structure will not be damaged during the disassembly process. There is a rotatable turntable 131 in the middle of the fixed platen 13 , and the turntable 131 can rotate around the center of the fixed platen 13 on its plane. Further, a plurality of small holes 132 are uniformly arranged on the disc surface of the turntable 131, and the size of the small holes 132 is consistent with the size of the sound inlet hole 21 of the sound inlet part 12, an...
Embodiment 3
[0043] On the basis of Embodiment 1 or Embodiment 2, the codec device 2 is selected as a codec device 2 produced by TI Company as TLC320AD50C, and the TLC320AD50C codec device 2 is a 16-bit high-performance audio signal codec chip. Contains anti-aliasing filter and reconstruction filter, the highest sampling frequency can reach 22.05kHz, and can be set through external programming. The chip has a synchronous serial communication interface (SPI) that can be connected with many DSP chips; it adopts two sets of analog inputs and two sets of analog outputs, has sufficient common-mode rejection capability, can work in differential or single-ended mode, input gain The output attenuation and output attenuation can be controlled by external programming; it adopts a single 5V power supply or a combined power supply of 5V and 3.3V, and the maximum power consumption is 120mw during operation; it is small in size and suitable for portable devices. In order to offset the interference from ...
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