CN106066999A - A kind of face identification system anti-jamming signal processing system - Google Patents
A kind of face identification system anti-jamming signal processing system Download PDFInfo
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- CN106066999A CN106066999A CN201610364568.0A CN201610364568A CN106066999A CN 106066999 A CN106066999 A CN 106066999A CN 201610364568 A CN201610364568 A CN 201610364568A CN 106066999 A CN106066999 A CN 106066999A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/16—Human faces, e.g. facial parts, sketches or expressions
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- Oral & Maxillofacial Surgery (AREA)
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Abstract
The invention discloses a kind of face identification system anti-jamming signal processing system, it is characterized in that, mainly by processing chip U, N pole is connected with the FREP pin processing chip U, the diode D6 that P pole is connected with the RC pin processing chip U after resistance R16, positive pole is connected with the P pole of diode D6, the polar capacitor C8 that negative pole is connected with the OUT pin processing chip U, the mixing tuning circuit being connected with process chip U, the signal frequency correcting circuit being connected with the COMP pin processing chip U after inductance L, and the signal pre-processing circuit composition being connected with signal frequency correcting circuit.The present invention carries out steady flat process to the high-low signal frequency in picture signal, and garbage signal frequency in picture signal is eliminated or decays simultaneously, make the transmission of the picture signal energy held stationary of input, thus the present invention can ensure that the accuracy of identification of face identification system.
Description
Technical field
The present invention relates to electronic applications, specifically, be a kind of face identification system anti-jamming signal processing system.
Background technology
Along with high-tech flourish, face identification system is wide by people because of its convenience as human body password
Model uses.In addition intelligent management has come into the social life of people now, and many Intelligent Buildings are rised sheer from level ground, suitable
Answer the epoch needs of information, as noble building and working environment, it is necessary to functionally meet the need of current and future development
Ask, become the base of culture and economic development.So face identification system is applied in the gate identification system of Balkh,
But because the interference signal in picture signal cannot be eliminated by the signal processing system of current face identification system, deposit simultaneously
Picture signal is being processed inaccurate, thus is causing the accuracy of identification of face identification system the highest, making face identification system know
Occur time other refusing to recognize situation, i.e. None-identified goes out client, or system has carried out wrong identification, and the place of causing carrys out personnel and enters into
Indoor, bring potential safety hazard.
Therefore it provides a kind of face identification system signal processing system that can improve capacity of resisting disturbance is when business
Anxious.
Summary of the invention
It is an object of the invention to overcome the signal processing system capacity of resisting disturbance of face identification system of the prior art
Difference, to receive the inaccurate defect of signal processing, it is provided that a kind of face identification system anti-jamming signal processing system.
The present invention is achieved through the following technical solutions: a kind of face identification system anti-jamming signal processing system, main
Will be by processing chip U, N pole is connected with the FREP pin processing chip U, P pole is managed with the RC processing chip U after resistance R16
The diode D6 that foot is connected, positive pole is connected with the P pole of diode D6, negative pole is connected with the OUT pin of process chip U
Polar capacitor C8, the mixing tuning circuit being connected with process chip U, it is connected with the COMP pin processing chip U after inductance L
The signal frequency correcting circuit connect, and the signal pre-processing circuit composition being connected with signal frequency correcting circuit；Described letter
Number deaccentuator is connected with mixing tuning circuit.
Described signal pre-processing circuit is by amplifier P, and positive pole is connected with the electrode input end of amplifier P, negative pole conduct
Polar capacitor C1, the N pole of the input of signal pre-processing circuit is connected with the outfan of amplifier P, P pole after resistance R1 with
The diode D1 that the electrode input end of amplifier P is connected, positive pole is connected with the electrode input end of amplifier P, negative pole is through electricity
After resistance R2 polar capacitor C2, the P pole that is connected with the N pole of diode D1 outfan with amplifier P after resistance R5 be connected,
The diode D2 that N pole electrode input end with amplifier P after resistance R3 is connected, and negative pole is defeated with the negative pole of amplifier P
Enter the polar capacitor C3 composition that end is connected, positive pole is connected after resistance R4 with the P pole of diode D2；Described amplifier P's
The P pole of negative input ground connection, its outfan and diode D2 is collectively forming outfan and the signal of signal pre-processing circuit
Deaccentuator is connected.
Described signal frequency correcting circuit is connected with the outfan of amplifier P by audion VT, P pole, N pole is through inductance L
Be connected with diode D4, the P pole that is connected of COMP pin processing chip U outfan with amplifier P after resistance R7 afterwards,
The diode D3 that N pole is sequentially connected with the N pole of diode D4 after resistance R9 through resistance R8, positive pole after resistance R6 with two poles
The polar capacitor C4 of ground connection after the P pole of pipe D4 is connected, negative pole is connected with the colelctor electrode of audion VT, positive pole and diode D4
The polar capacitor C5 that N pole is connected, negative pole is connected with the base stage of audion VT, and the N pole phase of one end and diode D4
The resistance R10 composition that connection, the other end are connected with the emitter stage of audion VT；The emitter stage of described audion VT is adjusted with mixing
Humorous circuit is connected；The positive pole of described polar capacitor C4 is connected with the P pole of diode D2.
Described mixing tuning circuit is connected with the THR pin processing chip U by one end, the other end and process chip U
The resistance R12 that CMIN pin is connected, negative pole with process chip U CMIN pin be connected, positive pole after resistance R11 with three poles
Polar capacitor C6, the P pole that the emitter stage of pipe VT is connected emitter stage with audion VT after resistance R13 is connected, N pole is through can
The diode D5 being connected with the OUT pin processing chip U after adjusting resistance R15, one end is connected with the CMIN pin processing chip U
Connect, resistance R14 that the other end is connected with the N pole of diode D5, and positive pole is connected with the REF pin of process chip U, negative
The polar capacitor C7 composition that pole is connected with the N pole of diode D5.
For the practical effect of the present invention, described process chip U preferentially have employed and comes in fact into the integrated chip of LM331
Existing.
The present invention compared with prior art, has the following advantages and beneficial effect:
(1) present invention has stronger capacity of resisting disturbance, garbage signal frequency in picture signal can be eliminated, make image believe
Number can accurately transmit, so that it is guaranteed that the accuracy that picture signal is processed by the present invention.
(2) present invention can carry out frequency correction to picture signal, makes the transmission speed of each frequency of picture signal to protect
Hold consistent, thus effectively raise the accuracy that picture signal is processed by the present invention.
(3) mixing in picture signal can effectively be tuned by the present invention, makes each frequency of picture signal keep
Steadily, clearly, effectively ensure that signal can accurately be processed by the present invention, ensure that the knowledge of face identification system
Other precision.
(4) present invention can make the accuracy of identification of face identification system improve more than 70%, can effectively prevent recognition of face
System carries out wrong identification, thus effectively raises the practicality of face identification system.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing thereof, the present invention is described in further detail, but embodiments of the present invention are not
It is limited to this.
Embodiment
As it is shown in figure 1, the present invention is mainly by processing chip U, resistance R16, polar capacitor C8, diode D6, mixing tuning
Circuit, signal frequency correcting circuit, and signal pre-processing circuit composition.
During enforcement, the N pole of diode D6 with process chip U FREP pin be connected, its P pole after resistance R16 with place
The RC pin of reason chip U is connected.The positive pole of polar capacitor C8 is connected with the P pole of diode D6, its negative pole with process chip U
OUT pin be connected.Mixing tuning circuit is connected with processing chip U.Signal frequency correcting circuit after inductance L with process
The COMP pin of chip U is connected.Its signal pre-processing circuit is connected with signal frequency correcting circuit.Described signal frequency school
Positive circuit is connected with mixing tuning circuit.The OUT pin of described process chip U is connected with the controller of face identification system
Connect.
Wherein, described signal pre-processing circuit by amplifier P, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5,
Polar capacitor C1, polar capacitor C2, polar capacitor C3, diode D1, and diode D2 form.
During connection, the positive pole of polar capacitor C1 is connected with the electrode input end of amplifier P, its negative pole is located in advance as signal
The input of reason circuit.The N pole of diode D1 is connected with the outfan of amplifier P, its P pole after resistance R1 with amplifier P
Electrode input end be connected.The positive pole of polar capacitor C2 is connected with the electrode input end of amplifier P, its negative pole is through resistance R2
It is connected with the N pole of diode D1 afterwards.
Meanwhile, the P pole of diode D2 outfan with amplifier P after resistance R5 be connected, its N pole after resistance R3 with
The electrode input end of amplifier P is connected.The negative pole of polar capacitor C3 is connected with the negative input of amplifier P, its positive pole
After resistance R4, the P pole with diode D2 is connected.The negative input ground connection of described amplifier P, its outfan and diode
The P pole of D2 is collectively forming the outfan of signal pre-processing circuit and is connected with signal frequency correcting circuit.
Further, described signal frequency correcting circuit by audion VT, resistance R6, resistance R7, resistance R8, resistance R9,
Resistance R10, polar capacitor C4, polar capacitor C5, diode D3, and diode D4 form.
During connection, the P pole of diode D4 is connected with the outfan of amplifier P, its N pole after inductance L with process chip U
COMP pin be connected.The P pole of diode D3 outfan with amplifier P after resistance R7 is connected, its N pole is sequentially through electricity
It is connected with the N pole of diode D4 after resistance R8 and resistance R9.The positive pole of polar capacitor C4 after resistance R6 with the P pole of diode D4
Be connected, its negative pole be connected with the colelctor electrode of audion VT after ground connection.
Wherein, the positive pole of polar capacitor C5 is connected with the N pole of diode D4, its negative pole is connected with the base stage of audion VT
Connect.One end of resistance R10 is connected with the N pole of diode D4, its other end is connected with the emitter stage of audion VT.Described three
The emitter stage of pole pipe VT is connected with mixing tuning circuit；The positive pole of described polar capacitor C4 is connected with the P pole of diode D2.
Further, described mixing tuning circuit is by resistance R11, resistance R12, resistance R13, resistance R14, adjustable resistance
R15, polar capacitor C6, polar capacitor C7, diode D5, and inductance L form.
During connection, one end of resistance R12 is connected with the THR pin processing chip U, its other end with process chip U
CMIN pin is connected.The negative pole of polar capacitor C6 is connected with the CMIN pin processing chip U, its positive pole is after resistance R11
It is connected with the emitter stage of audion VT.The P pole of diode D5 emitter stage with audion VT after resistance R13 is connected, its N
Pole is connected with the OUT pin processing chip U after adjustable resistance R15.One end of resistance R14 and the CMIN pipe processing chip U
Foot is connected, its other end is connected with the N pole of diode D5.The positive pole of polar capacitor C7 and the REF pin phase processing chip U
Connect, its negative pole is connected with the N pole of diode D5.
During operation, during operation, the present invention carries out steady flat process to the high-low signal frequency in picture signal, and simultaneously will figure
In image signal, garbage signal frequency eliminates or decays, and makes the transmission of picture signal energy held stationary.The present invention to transmission
In video frequency be corrected, make the transmission speed of each frequency of picture signal can keep consistent, it is ensured that image believe
Number transmission stablize.Meanwhile, the mixing in picture signal is effectively tuned by the present invention, makes each frequency of picture signal
Held stationary, clear, it is tuned rear picture signal by obtaining image information accurately after processing chip U and being analyzed processing.
The present invention will process the image information that obtains after chip U processes and be transferred to the controller of face identification system accurately, thus really
Protect the accuracy of identification of face identification system.
The present invention can make the accuracy of identification of face identification system improve more than 70%, can effectively prevent face identification system
Carry out wrong identification, thus effectively raise the practicality of face identification system.For the practical effect of the present invention, institute
State process chip U preferentially to have employed and realize for the integrated chip of LM331.
According to above-described embodiment, can well realize the present invention.
Claims (5)
1. a face identification system anti-jamming signal processing system, it is characterised in that mainly by processing chip U, N pole and place
The diode D6 that FREP pin is connected, P pole is connected with the RC pin processing chip U after resistance R16 of reason chip U, just
The polar capacitor C8 that pole is connected with the P pole of diode D6, negative pole is connected with the OUT pin of process chip U, with process chip
The mixing tuning circuit that U is connected, the signal frequency correcting circuit being connected with the COMP pin processing chip U after inductance L,
And the signal pre-processing circuit composition being connected with signal frequency correcting circuit；Described signal frequency correcting circuit is adjusted with mixing
Humorous circuit is connected.
A kind of face identification system anti-jamming signal processing system the most according to claim 1, it is characterised in that described
Signal pre-processing circuit is by amplifier P, and positive pole is connected with the electrode input end of amplifier P, negative pole is electric as Signal Pretreatment
Polar capacitor C1, the N pole of the input on road is connected with the outfan of amplifier P, P pole after resistance R1 with amplifier P just
The diode D1 that pole input is connected, positive pole is connected with the electrode input end of amplifier P, negative pole after resistance R2 with two poles
Polar capacitor C2, the P pole that the N pole of pipe D1 is connected outfan with amplifier P after resistance R5 is connected, N pole is through resistance R3
The diode D2 that electrode input end with amplifier P is connected afterwards, and negative pole is connected with the negative input of amplifier P,
The polar capacitor C3 composition that positive pole is connected with the P pole of diode D2 after resistance R4；The negative input of described amplifier P connects
Ground, the P pole of its outfan and diode D2 be collectively forming signal pre-processing circuit outfan and with signal frequency correcting circuit
It is connected.
A kind of face identification system anti-jamming signal processing system the most according to claim 2, it is characterised in that described
Signal frequency correcting circuit is connected with the outfan of amplifier P by audion VT, P pole, N pole after inductance L with process chip U
Diode D4, the P pole that is connected of COMP pin outfan with amplifier P after resistance R7 be connected, N pole is sequentially through resistance
The diode D3 being connected with the N pole of diode D4 after R8 and resistance R9, positive pole P with diode D4 after resistance R6 are extremely connected
Connect, negative pole be connected with the colelctor electrode of audion VT after the polar capacitor C4 of ground connection, positive pole is connected with the N pole of diode D4,
The polar capacitor C5 that negative pole is connected with the base stage of audion VT, and one end is connected with the N pole of diode D4, the other end with
The resistance R10 composition that the emitter stage of audion VT is connected；The emitter stage of described audion VT is connected with mixing tuning circuit；
The positive pole of described polar capacitor C4 is connected with the P pole of diode D2.
A kind of face identification system anti-jamming signal processing system the most according to claim 3, it is characterised in that described
Mixing tuning circuit is connected with the THR pin processing chip U by one end, the other end is connected with the CMIN pin of process chip U
The resistance R12 connect, negative pole is connected with the CMIN pin processing chip U, positive pole after resistance R11 with the emitter stage of audion VT
Polar capacitor C6, the P pole being connected emitter stage with audion VT after resistance R13 is connected, N pole is after adjustable resistance R15
With the diode D5 that is connected of OUT pin processing chip U, one end is connected with the CMIN pin processing chip U, the other end and
The resistance R14 that the N pole of diode D5 is connected, and positive pole is connected with the REF pin of process chip U, negative pole and diode
The polar capacitor C7 composition that the N pole of D5 is connected.
A kind of face identification system anti-jamming signal processing system the most according to claim 4, it is characterised in that described
Processing chip U is the integrated chip of LM331.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610364568.0A CN106066999A (en) | 2016-05-26 | 2016-05-26 | A kind of face identification system anti-jamming signal processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610364568.0A CN106066999A (en) | 2016-05-26 | 2016-05-26 | A kind of face identification system anti-jamming signal processing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106066999A true CN106066999A (en) | 2016-11-02 |
Family
ID=57420907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610364568.0A Pending CN106066999A (en) | 2016-05-26 | 2016-05-26 | A kind of face identification system anti-jamming signal processing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106066999A (en) |
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2016
- 2016-05-26 CN CN201610364568.0A patent/CN106066999A/en active Pending
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Application publication date: 20161102 |