Anti-interference signal processing system used for face recognition system
A face recognition system and signal processing technology, which is applied in the field of anti-interference signal processing system for face recognition system, can solve the problems of inaccurate signal processing and poor anti-interference ability, so as to ensure accuracy, improve accuracy, and strengthen The effect of anti-interference ability
Inactive Publication Date: 2016-11-02
CHENGDU JUHUICAI TECH
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Problems solved by technology
[0004] The purpose of the present invention is to overcome the defects of poor anti-interference ability of the signal processing system of the face recognition system in the prior art and inaccurate processing of the received signal, and provide an anti-interference signal processing system for a face recognition system
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Embodiment
[0018] Such as figure 1 As shown, the present invention is mainly composed of a processing chip U, a resistor R16, a polar capacitor C8, a diode D6, a frequency mixing and tuning circuit, a signal frequency correction circuit, and a signal preprocessing circuit.
[0019] During implementation, the N pole of the diode D6 is connected to the FREP pin of the processing chip U, and its P pole is connected to the RC pin of the processing chip U after passing through the resistor R16. The anode of the polarity capacitor C8 is connected to the P pole of the diode D6, and its cathode is connected to the OUT pin of the processing chip U. The frequency mixing and tuning circuit is connected with the processing chip U. The signal frequency correction circuit is connected to the COMP pin of the processing chip U through the inductor L. Its signal preprocessing circuit is connected with the signal frequency correction circuit. The signal frequency correction circuit is connected with th...
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The invention discloses an anti-interference signal processing system used for a face recognition system. The anti-interference signal processing system is characterized in that the anti-interference signal processing system is mainly composed of a processing chip U, a diode D6 of which the N pole is connected with the FREP pin of the processing chip U and the P pole is connected with the RC pin of the processing chip U through a resistor R16, a polar capacitor C8 of which the positive electrode is connected with the P pole of the diode D6 and the negative electrode is connected with the OUT pin of the processing chip U, a frequency mixing tuning circuit which is connected with the processing chip U, a signal frequency correction circuit which is connected with the CMOP pin of the processing chip U through an inductor L and a signal preprocessing circuit which is connected with the signal frequency correction circuit. High and low signal frequencies of image signals are stably processed, and useless signal frequencies of the image signals are eliminated or attenuated so that the inputted image signals are enabled to maintain stable transmission, and the recognition precision of the face recognition system can be ensured.
Description
technical field [0001] The invention relates to the field of electronics, in particular to an anti-jamming signal processing system for a face recognition system. Background technique [0002] With the vigorous development of high technology, the face recognition system has been widely used as a human body password because of its convenience. In addition, intelligent management has entered people's social life now, and intelligent buildings have sprung up one after another to meet the needs of the information age. As a noble building and office environment, it must meet the current and future development needs functionally. Become a base for cultural and economic development. Therefore, the face recognition system has been applied to Daxia's access control recognition system, but because the signal processing system of the current face recognition system cannot eliminate the interference signal in the image signal, and there is inaccurate image signal processing, thus As a...
Claims
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Login to View More IPC IPC(8): G06K9/00
CPCG06V40/16
Inventor 李考
Owner CHENGDU JUHUICAI TECH