CN107834831B - Face recognition monitoring management system - Google Patents
Face recognition monitoring management system Download PDFInfo
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- CN107834831B CN107834831B CN201711402016.5A CN201711402016A CN107834831B CN 107834831 B CN107834831 B CN 107834831B CN 201711402016 A CN201711402016 A CN 201711402016A CN 107834831 B CN107834831 B CN 107834831B
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- capacitor
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- triode
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 35
- 239000003990 capacitor Substances 0.000 claims abstract description 43
- 230000002159 abnormal effect Effects 0.000 claims abstract description 24
- 238000001914 filtration Methods 0.000 claims abstract description 24
- 230000008054 signal transmission Effects 0.000 claims abstract description 15
- 239000002131 composite material Substances 0.000 claims abstract description 14
- 230000000694 effects Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
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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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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2218/00—Aspects of pattern recognition specially adapted for signal processing
- G06F2218/02—Preprocessing
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
- H02M1/325—Means for protecting converters other than automatic disconnection with means for allowing continuous operation despite a fault, i.e. fault tolerant converters
Abstract
The invention discloses a face recognition monitoring management system, which comprises a comparison amplifying circuit, a switching circuit and a filtering output circuit, wherein the comparison amplifying circuit receives signals in a signal transmission channel in the face recognition monitoring management system, the signals are compared and amplified by using operational amplifiers AR1 and AR2 and are input into the switching circuit, the switching circuit filters abnormal signals by using a composite circuit formed by triodes Q1 and Q2, and finally the abnormal signals are filtered and output by using pi-type filtering circuits formed by inductors L1 and L2 and polar capacitors C4 and C6 through the filtering output circuit, namely the abnormal signals are filtered by using the composite circuit formed by triodes Q1 and Q2 in the signal transmission channel in the face recognition monitoring management system, compared with a single triode, the conducting voltage of the triode is enlarged by using the composite circuit formed by the triodes Q1 and Q2, the effect of protecting the circuit is achieved, and the face recognition monitoring management system has great development value and practical value.
Description
Technical Field
The invention relates to the technical field of monitoring management systems, in particular to a face recognition monitoring management system.
Background
At present, in the information age, the monitoring management system has been developed into fingerprint identification by traditional human monitoring, even face recognition monitoring management system, however, the signal of the face recognition monitoring management system often has abnormal signal, which can cause error in the identification of the face recognition monitoring management system.
The present invention provides a new solution to this problem.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention aims to provide the face recognition monitoring management system which has the characteristics of ingenious conception and humanized design, can effectively stabilize signals in the face recognition monitoring management system and eliminates abnormal signals.
The technical scheme is that the face recognition monitoring management system comprises a comparison amplifying circuit, a switching circuit and a filtering output circuit, wherein the comparison amplifying circuit receives signals in a signal transmission channel in the face recognition monitoring management system, the signals are compared and amplified by using operational amplifiers AR1 and AR2 and input into the switching circuit, the switching circuit filters abnormal signals by using a composite circuit formed by triodes Q1 and Q2, and finally the abnormal signals are filtered and output by using pi-type filtering circuits formed by inductors L1 and L2 and polar capacitors C4 and C6 through the filtering output circuit;
the comparison amplifying circuit comprises a resistor R1, one end of the resistor R1 is connected with a signal input port, the other end of the resistor R1 is connected with a resistor R2 and one end of a capacitor C1, the other end of the resistor R2 is connected with the non-inverting input end of an operational amplifier AR1, the inverting input end of the operational amplifier AR1 is connected with one end of the capacitor C2, the other end of the capacitor C2 is connected with the inverting input end of the operational amplifier AR2, the non-inverting input end of the operational amplifier AR2 is connected with the other end of the capacitor C1, the output end of the operational amplifier AR1 is connected with one end of the capacitor C3 and one end of the resistor R3, and the other end of the capacitor C3 is connected with the output end of the operational amplifier AR 2.
Preferably, the switching circuit includes a triode Q1, a base electrode of the triode Q1 is connected to an output end of the operational amplifier AR2, a collector electrode of the triode Q1 is connected to the other end of the resistor R3 and one end of the resistors R3 and R6, and one end of the collector electrode of the triode Q2 and one end of the capacitor C5, the other end of the resistor R3 is connected to the output end of the operational amplifier AR1, an emitter electrode of the triode Q1 is connected to the base electrode of the triode Q2, and the other end of the resistor R6 and the other end of the capacitor C5 are connected to the power supply +10v.
Compared with the prior art, the invention has the following beneficial effects:
1. the comparison amplifying circuit receives signals in a signal transmission channel in the face recognition monitoring management system, the operational amplifiers AR1 and AR2 are used for comparing and amplifying the signals and inputting the signals into the switching circuit, the switching circuit uses the triodes Q1 and Q2 to form a composite circuit for filtering abnormal signals, and finally the filtering output circuit uses the inductors L1 and L2 and the polar capacitors C4 and C6 to form pi-type filtering circuits for filtering output, namely the signals are input into the signal transmission channel in the face recognition monitoring management system, so that the signals in the face recognition monitoring management system are effectively stabilized, and the abnormal signals are eliminated.
2. The composite circuit formed by the triodes Q1 and Q2 is adopted to filter abnormal signals, compared with a single triode, the composite circuit formed by the triodes Q1 and Q2 enlarges the conducting voltage of the triode and plays a role of a protection circuit, and in order to effectively filter clutter in signals, the pi-type filter circuit formed by the inductors L1 and L2 and the polar capacitors C4 and C6 is adopted to filter output, so that the filter circuit has great development value and practical value.
Drawings
Fig. 1 is a circuit block diagram of a face recognition monitoring management system according to the present invention.
Fig. 2 is a schematic circuit diagram of a face recognition monitoring management system according to the present invention.
Detailed Description
The foregoing and other features, aspects and advantages of the present invention will become more apparent from the following detailed description of the embodiments, which proceeds with reference to the accompanying figures 1-2. The following embodiments are described in detail with reference to the drawings.
The first embodiment of the invention is a face recognition monitoring management system, comprising a comparison amplifying circuit, a switching circuit and a filtering output circuit, wherein the comparison amplifying circuit receives signals in a signal transmission channel in the face recognition monitoring management system, the signals are compared and amplified by using operational amplifiers AR1 and AR2 and are input into the switching circuit, the switching circuit filters abnormal signals by using a composite circuit formed by triodes Q1 and Q2, and finally the abnormal signals are filtered and output by using pi-type filtering circuits formed by inductors L1 and L2 and polar capacitors C4 and C6 through the filtering output circuit, namely the abnormal signals are input into the signal transmission channel in the face recognition monitoring management system;
the comparison amplifying circuit receives signals in a signal transmission channel in the face recognition monitoring and managing system, the signals are limited by a resistor R1 and then flow into operational amplifiers AR1 and AR2 in two paths, one path of signals is shunted by the resistor R2 and flows into the in-phase input end of the operational amplifier AR1, the other path of signals flows into the in-phase input end of the operational amplifier AR2 after being filtered by a capacitor C1, the operational amplifier AR1 and AR2 form a window circuit to compare and amplify the signals, the signal transmission rate is improved, the signals are stabilized, one end of the resistor R1 is connected with a signal input port, one end of the resistor R1 is connected with the signal input port, the other end of the resistor R1 is connected with one end of the resistor R2 and one end of the capacitor C1, the other end of the resistor R2 is connected with the in-phase input end of the operational amplifier AR2, the other end of the capacitor C2 is connected with the opposite-phase input end of the operational amplifier AR2, the in-phase input end of the operational amplifier AR2 is connected with the other end of the capacitor C1, and the other end of the capacitor C3 is connected with the output end of the operational amplifier AR 2.
In the second embodiment, on the basis of the first embodiment, the switching circuit adopts a composite circuit formed by the triodes Q1 and Q2 to filter abnormal signals, compared with a single triode, the composite circuit formed by the triodes Q1 and Q2 enlarges the conducting voltage of the triode, and has the effect of protecting the circuit, when the signal after the comparison amplifying circuit contains abnormal signals, the triode Q1 is not conducted, and simultaneously the triode Q2 is also not conducted, when the signal after the comparison amplifying circuit is normal, the triodes Q1 and Q2 are conducted, so that the effect of filtering abnormal signals is achieved, the base electrode of the triode Q1 is connected with the output end of the operational amplifier AR2, the collector electrode of the triode Q1 is connected with one end of the resistor R3 and one end of the resistor R6, the collector electrode of the triode Q2 is connected with one end of the capacitor C5, the other end of the resistor R3 is connected with the output end of the operational amplifier AR1, the emitter electrode of the triode Q1 is connected with the base electrode of the triode Q2, and the other end of the resistor R6 and the other end of the capacitor C5 is connected with the power supply +10v.
In the third embodiment, based on the second embodiment, the filter output circuit selects the inductors L1 and L2 and the polar capacitors C4 and C6 to form a pi filter circuit for filtering output, that is, the filter output is input into the signal transmission channel in the face recognition monitoring management system, one end of the inductor L1 is connected with the emitter of the triode Q2 and one end of the inductor L2 and the positive electrode of the polar capacitor C4, the negative electrode of the polar capacitor C4 is grounded, the other ends of the resistor R6 and the capacitor C5 are connected with the power supply +10v, the other ends of the inductors L1 and L2 are connected with the positive electrode of the polar capacitor C6 and the signal output port, and the negative electrode of the polar capacitor C6 is grounded.
When the face recognition monitoring management system is particularly used, the face recognition monitoring management system comprises a comparison amplifying circuit, a switching circuit and a filtering output circuit, wherein the comparison amplifying circuit receives signals in a signal transmission channel in the face recognition monitoring management system, the signals are compared and amplified by using operational amplifiers AR1 and AR2 and input into the switching circuit, the switching circuit filters abnormal signals by using a composite circuit formed by triodes Q1 and Q2, and finally the abnormal signals are filtered and output by using pi-type filtering circuits formed by inductors L1 and L2 and polar capacitors C4 and C6 through the filtering output circuit, namely the abnormal signals are input into the signal transmission channel in the face recognition monitoring management system; the comparison amplifying circuit receives signals in a signal transmission channel in the face recognition monitoring and managing system, the signals are limited by a resistor R1 and then flow into operational amplifiers AR1 and AR2 in two paths, one path of signals is shunted by the resistor R2 and then flows into an in-phase input end of the operational amplifier AR1, the other path of signals flows into an in-phase input end of the operational amplifier AR2 after being filtered by a capacitor C1, the operational amplifiers AR1 and AR2 form a window circuit to compare amplified signals, the signal transmission rate is improved, the signals are stabilized, the switching circuit adopts a composite circuit formed by triodes Q1 and Q2 to filter abnormal signals, compared with a single triode, the composite circuit formed by triodes Q1 and Q2 expands the conducting voltage of the triode, the effect of a protection circuit is achieved, when the signals after the comparison amplifying circuit contain abnormal signals, the triode Q1 is not conducted, meanwhile, the triode Q2 is also not conducted, when the signals after the comparison amplifying circuit are normal in face recognition, the effect of abnormal signals is achieved, the filtering output circuit selects inductors L1 and L2 and the polar capacitor C4, and the filtering output circuit forms the signal to be in the monitoring and managing system.
While the invention has been described in connection with certain embodiments, it is not intended that the invention be limited thereto; for those skilled in the art to which the present invention pertains and the related art, on the premise of based on the technical scheme of the present invention, the expansion, the operation method and the data replacement should all fall within the protection scope of the present invention.
Claims (1)
1. The face recognition monitoring management system comprises a comparison amplifying circuit, a switching circuit and a filtering output circuit, and is characterized in that the comparison amplifying circuit receives signals in a signal transmission channel in the face recognition monitoring management system, the signals are compared and amplified by using operational amplifiers AR1 and AR2 and are input into the switching circuit, the switching circuit filters abnormal signals by using a composite circuit formed by triodes Q1 and Q2, and finally the abnormal signals are filtered and output by using pi-type filtering circuits formed by inductors L1 and L2 and polar capacitors C4 and C6 through the filtering output circuit;
the comparison amplifying circuit comprises a resistor R1, one end of the resistor R1 is connected with a signal input port, the other end of the resistor R1 is connected with a resistor R2 and one end of a capacitor C1, the other end of the resistor R2 is connected with the in-phase input end of an operational amplifier AR1, the opposite-phase input end of the operational amplifier AR1 is connected with one end of a capacitor C2, the other end of the capacitor C2 is connected with the opposite-phase input end of the operational amplifier AR2, the in-phase input end of the operational amplifier AR2 is connected with the other end of the capacitor C1, the output end of the operational amplifier AR1 is connected with one end of a capacitor C3 and one end of a resistor R3, and the other end of the capacitor C3 is connected with the output end of the operational amplifier AR 2;
the switching circuit comprises a triode Q1, wherein the base electrode of the triode Q1 is connected with the output end of an operational amplifier AR2, the collector electrode of the triode Q1 is connected with the other end of a resistor R3 and one ends of resistors R3 and R6, the collector electrode of the triode Q2 and one end of a capacitor C5, the other end of the resistor R3 is connected with the output end of the operational amplifier AR1, the emitter electrode of the triode Q1 is connected with the base electrode of the triode Q2, and the other end of the resistor R6 and the other end of the capacitor C5 are connected with a power supply +10V;
the filtering output circuit comprises an inductor L1, one end of the inductor L1 is connected with an emitter of a triode Q2, one end of the inductor L2 and an anode of a polar capacitor C4, a cathode of the polar capacitor C4 is grounded, the other ends of a resistor R6 and a capacitor C5 are connected with a power supply +10V, the other ends of the inductors L1 and L2 are connected with an anode of the polar capacitor C6 and a signal output port, and the cathode of the polar capacitor C6 is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711402016.5A CN107834831B (en) | 2017-12-22 | 2017-12-22 | Face recognition monitoring management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711402016.5A CN107834831B (en) | 2017-12-22 | 2017-12-22 | Face recognition monitoring management system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107834831A CN107834831A (en) | 2018-03-23 |
| CN107834831B true CN107834831B (en) | 2023-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711402016.5A Active CN107834831B (en) | 2017-12-22 | 2017-12-22 | Face recognition monitoring management system |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107478945A (en) * | 2017-09-13 | 2017-12-15 | 山东航海电器设备有限公司 | A kind of digital display circuit of IM types exchange insulating monitor |
| CN207801749U (en) * | 2017-12-22 | 2018-08-31 | 福州易趣网络科技有限公司 | A kind of recognition of face monitoring management system |
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2017
- 2017-12-22 CN CN201711402016.5A patent/CN107834831B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107478945A (en) * | 2017-09-13 | 2017-12-15 | 山东航海电器设备有限公司 | A kind of digital display circuit of IM types exchange insulating monitor |
| CN207801749U (en) * | 2017-12-22 | 2018-08-31 | 福州易趣网络科技有限公司 | A kind of recognition of face monitoring management system |
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| CN107834831A (en) | 2018-03-23 |
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