CN112165748B - Control system and control method for face acquisition and recognition - Google Patents
Control system and control method for face acquisition and recognition Download PDFInfo
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- CN112165748B CN112165748B CN202010866696.1A CN202010866696A CN112165748B CN 112165748 B CN112165748 B CN 112165748B CN 202010866696 A CN202010866696 A CN 202010866696A CN 112165748 B CN112165748 B CN 112165748B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
- H05B45/12—Controlling the intensity of the light using optical feedback
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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
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/30—Individual registration on entry or exit not involving the use of a pass
- G07C9/32—Individual registration on entry or exit not involving the use of a pass in combination with an identity check
- G07C9/37—Individual registration on entry or exit not involving the use of a pass in combination with an identity check using biometric data, e.g. fingerprints, iris scans or voice recognition
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/115—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings
- H05B47/13—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings by using passive infrared detectors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The invention discloses a control system and a control method for face acquisition recognition, which comprises the following steps: the infrared induction module senses the human body heat effect through infrared irradiation to complete an infrared induction instruction; the power storage module stores an input power under the detection of the infrared sensing module and starts an emergency reserve power when the system is powered off; the time delay triggering module carries out time delay triggering on the induction instruction of the infrared induction module; the light control module receives the conduction voltage of the delay triggering module, and then adjusts the output voltage according to the brightness of natural light; the lamp group module receives the adjusting input voltage of the light control module, and light supplement of the entrance guard face recognition system is further completed; the invention designs the delay triggering module and the light control module, processes the response condition of the personnel in the non-operation state and improves the stability of the control system.
Description
Technical Field
The invention relates to the technical field of access control, in particular to a control system for face acquisition recognition and a control method thereof.
Background
The access control system is an important component of a security system, the traditional system mostly adopts modes of manual registration, mechanical locking, card swiping and the like, wherein too many human influence factors are involved, such as loss, embezzlement, card holding needing manual close distance and the like, the operation is complex and unreliable, and along with the rapid development of computer technology and internet, an intelligent system based on human body biological feature recognition becomes a research hotspot in the field of computer vision and pattern recognition.
The human face is used as a unique biological feature with uniqueness, is applied to access control and attendance management, and has the advantages of convenience in operation, high performance, high precision and the like.
The traditional entrance guard face recognition system can lead entrance guard detection equipment to be in an operating state when no entrance guard operator passes, further causing the loss of electric energy and the reduction of the service life of the equipment due to long-time on-off, and the entrance guard face recognition system needs to be in a running state for a long time, so that the personnel can enter the device quickly, and the long-time running state can cause the loss of internal devices and large amount of electric energy consumption, when the entrance guard face recognition is carried out at night, light is supplemented, and the traditional light supplementing brightness is a fixed value, so that the brightness cannot be adjusted according to natural light, the eyes are dazzled, the environment is rectified, large-area power-off maintenance is needed during maintenance, and the access control face recognition system cannot normally operate due to the fact that the access control face recognition system cannot normally operate in the maintenance process, so that personnel cannot be recognized, and the safety of personnel and property exists.
Disclosure of Invention
The purpose of the invention is as follows: a control system for face recognition is provided to solve the above problems.
The technical scheme is as follows: an acquisition face recognition control system comprising:
the infrared sensing module is used for collecting the heat effect of people in the access control detection range;
the power storage module is used for storing the input power and providing a reserve power when the access control detection system is powered off so as to ensure the normal operation of the access control acquisition system;
the time delay triggering module is used for carrying out time delay control on a conduction instruction of the infrared induction module for sensing the human body heat effect;
the light control module is used for adjusting resistance prevention through light sensation change so as to control the output voltage value;
and the lamp group module is used for receiving the output voltage of the light control module and further completing the brightness adjustment.
According to one aspect of the invention, the infrared sensing module comprises an infrared sensor C1, a resistor R1, a capacitor C4, a capacitor C1, a resistor R2, a resistor R3, a capacitor C3, a resistor R4, a controller U1, a capacitor C3, a resistor R5, a resistor R6, a capacitor C5, a resistor R7, a diode D1 and a bidirectional thyristor U5, wherein a pin 1 of the infrared sensor S1 is connected with a positive terminal of the capacitor C4; the pin 2 of the infrared sensor S1 is respectively connected with one end of a resistor R1, one end of a capacitor C1 and a pin 2 of a controller U1; the pin 3 of the infrared sensor S1 is respectively connected with the other end of the resistor R1, the other end of the capacitor C1 and a pin 5 of a controller U1; the negative end of the capacitor C4 is respectively connected with a pin 4 of the U1 of the controller and a ground wire GND; the pin 1 of the controller U1 is respectively connected with one end of a capacitor C2 and one end of a resistor R4; the other end of the capacitor C2 is connected with a pin 3 of a U1 of the controller; the pin 6 of the controller U1 is connected with one end of a resistor R2; the other end of the resistor R2 is respectively connected with an input power supply VDD and one end of a resistor R3; the other end of the resistor R3 is connected with a pin 7 of a U1 of the controller; the pin 9 of the controller U1 is connected with the positive end of a capacitor C5; the negative end of the capacitor C5 is respectively connected with one end of a resistor R7 and a ground wire GND; the other end of the resistor R7 is respectively connected with a pin 12 of a U1 of the controller and a pin 3 of a bidirectional triode thyristor U5; the pin 10 of the controller U1 is connected with an input power supply VDD; the pin 11 of the controller U1 is connected with one end of a resistor R6; the other end of the resistor R6 is connected with a pin 1 of a bidirectional thyristor U5; the pin 13 of the controller U1 is respectively connected with one end of a resistor R5, one end of a capacitor C3 and the other end of a resistor R4; the pin 15 of the controller U1 is respectively connected with the other end of the capacitor C13 and the other end of the resistor R5; the pin 14 of the controller U1 is connected with the positive end of a diode D1; and the cathode end of the diode D1 is respectively connected with an input power supply VDD and a pin 2 of a bidirectional triode thyristor U5.
According to one aspect of the invention, the power storage module comprises a resistor R14, a resistor R13, a diode D5, a diode D6, a triode Q1, a triode Q2, a controllable voltage regulator U2, a diode D4, a resistor R17, a resistor R16, a bidirectional silicon U6 and a lithium battery B1, wherein one end of the resistor R13 is respectively connected with one end of a resistor R14, one end of a triode Q2, the anode end of a diode D5, the cathode end of a diode D6, the cathode end of a diode D1, an input power VDD and a collector pin 2 of a bidirectional thyristor U5; the other end of the resistor R13 is respectively connected with a base terminal of a triode Q2, a pin 3 of a controllable voltage stabilizer U2, one end of a resistor R15, one end of a resistor R17, a pin 2 of a bidirectional silicon U6 and a collector terminal of a triode Q1; the emitter terminal of the triode Q2 is connected with the other end of the resistor R15; the other end of the resistor R14 is respectively connected with the positive end of a diode D4, one end of a resistor R16, the negative end of a lithium battery B1 and a ground wire GND; the base end of the triode Q1 is connected with the cathode end of the diode D5; the emitter terminal of the triode Q1 is connected with the positive terminal of a diode D6; the negative end of the diode D4 is connected with a pin 2 of a controllable voltage regulator U2; the pin 1 of the controllable voltage stabilizer U2 is respectively connected with the other end of the resistor R17 and the other end of the resistor R16; and the positive end of the lithium battery B1 is connected with a pin 1 of a bidirectional silicon U6.
According to one aspect of the invention, the time delay trigger module comprises a lamp LED1, a resistor R11, a resistor R12, a timer U3, a diode D3, a trimming resistor V1 and a capacitor C6, wherein one end of the resistor R11 is respectively connected with pin 1 of the timer U3, pin 7, pin 3, a negative electrode end of the diode D3, one end of the trimming resistor V1, the other end of the resistor R7, a pin 12 of the controller U1 and a pin 3 of a bidirectional triode thyristor U5; the other end of the resistor R11 is respectively connected with the positive end of a diode D3, the other end of a trimming resistor V1, a ground wire GND, a pin 8 of a U3 of a timer and the negative end of a capacitor C6; the negative electrode end of the lamp LED1 is connected with one end of a resistor R12; the other end of the resistor R12 is connected with pin 5 of a timer U3.
According to one aspect of the invention, the light control module comprises a photoresistor RT1, a variable resistor RV1, a resistor R9, a resistor R8, an operational amplifier U4, a resistor R10 and an inductor L1, wherein one end of the photoresistor RT1 is connected with a pin 3 of the variable resistor RV 1; the other end of the photoresistor RT1 is respectively connected with one end of a resistor R8, a pin 4 of an operational amplifier U4, a negative electrode end of a lamp LED1 and one end of a resistor R12; pin 1 of the variable resistor RV1 is connected with pin 3 of an operational amplifier U4; pin 2 of the variable resistor RV1 is respectively connected with one end of a resistor R9, a pin 7 of an operational amplifier U4, one end of an inductor L1, one end of a resistor R11, a pin 1 of a timer U3, a pin 7, a pin 3, a negative electrode end of a diode D3, one end of a trimming resistor V1, the other end of the resistor R7, a pin 12 of a controller U1 and a pin 3 of a bidirectional thyristor U5; the other end of the resistor R9 is respectively connected with the other end of the resistor R8, the pin 2 of the operational amplifier U4 and one end of the resistor R10; the other end of the resistor R10 is respectively connected with the other end of the inductor L1 and the pin 6 of the operational amplifier U4.
According to one aspect of the invention, the lamp group module comprises a triode Q3, a diode D2, a resistor R19, a resistor R18, a lamp LED2 and a lamp LED3, wherein an emitter terminal of the triode Q3 is respectively connected with a command output terminal OUT, a pin 2 of a variable resistor RV1, one end of a resistor R9, a pin 7 of an operational amplifier U4, one end of an inductor L1, one end of a resistor R11, a pin 1 of a timer U3, a pin 7, a pin 3, a negative terminal of a diode D3, one end of a trimming resistor V1, the other end of a resistor R7, a pin 12 of a controller U1 and a pin 3 of a triac U5; the base terminal of the triode Q3 is respectively connected with the other end of the resistor R10, the other end of the inductor L1 and a pin 6 of the operational amplifier U4; the collector terminal of the triode Q3 is respectively connected with the cathode terminal of the diode D2, one end of the resistor R19 and one end of the resistor R18; the positive end of the diode D2 is respectively connected with the negative end of the lamp LED2 and the negative end of the lamp LED 3; the positive end of the lamp LED2 is connected with the other end of the resistor R19; and the positive end of the lamp LED3 is connected with the other end of the resistor R18.
According to an aspect of the present invention, the transistor Q1 is connected to an input power source through a base terminal and an emitter terminal, and a collector terminal is connected to the lithium battery B1, so as to control the output of the storage power source of the lithium battery B1 according to a change in a voltage value, thereby maintaining the operation of the access control detection system.
According to one aspect of the present invention, the controllable voltage regulator U2 is a voltage regulation circuit for regulating the input voltage of the input power VDD, so as to keep the voltage stable when charging the lithium battery B1, and thus regulate the output voltage of the lithium battery B1 to be stable.
According to one aspect of the invention, the capacitor C4, the capacitor C5 and the capacitor C6 are electrolytic capacitors; the diode D1, the diode D2, the diode D3, the diode D4, the diode D5 and the diode D6 are all voltage-regulator diodes; the model of the triode Q1 and the model of the triode Q2 are both NPN; the model of the triode Q3 is PNP; the controller U1 is TDH 98072; the model of the timer U3 is NE 555; the controllable voltage regulator U2 is model TL 431.
According to one aspect of the invention, a control method of a control system for acquiring face recognition is characterized by comprising the following steps:
step 4, receiving the conversion output voltage of the infrared induction module, prolonging the voltage transmission by adopting a mode of blocking the output voltage transmission, and realizing a delay trigger effect, thereby reducing the long-time voltage loss and further finishing the output of delay control voltage;
step 5, transmitting the delayed voltage to a light sensation control circuit, and adjusting the light supplement brightness of the entrance guard face recognition system by utilizing the brightness of natural light so as to realize the brightness of the natural light and control the brightness of the light supplement, thereby reducing the loss of electric energy and the visual influence on human eyes in a dark state;
step 6, a triode is used as a non-contact switch to control the transmission of voltage, so that the internal resistance is changed according to the brightness change of natural light, the output value of the voltage is reduced, and the brightness change adjustment is further realized;
and 7, adopting voltage division for processing, thereby providing different branch voltages, directly providing operating voltage for the face recognition system, and enabling the camera inside the entrance guard to shoot entrance guard personnel, so that the shot image is compared with the cloud storage image, further completing the detection of the entrance guard personnel and protecting the safety of residents.
Has the advantages that: the invention designs a control system for identifying collected human faces and a control method thereof, wherein a human body infrared sensor is used for detecting whether a person exists in an entrance guard range, and when the person passes through the entrance guard range, a next-stage module can be operated, so that the long-time power consumption is reduced, when the person passes through the entrance guard range without entrance guard operation, the entrance guard is in an operating state, the infrared sensor can detect the human body heat effect and keep in a waiting state by increasing the transmission time of delay control voltage, so that the transmission of trigger voltage is controlled, the response condition caused by the movement of the person is reduced, the light-sensitive control voltage output is adopted for different human face light supplement effects in daytime and night, the internal blockage is regulated by light sensing, the output voltage is regulated, the brightness of a lamp group is regulated according to the brightness of natural light, the internal power supply is stored, the emergency power supply can be provided under the condition of power failure, and the safety of personnel and property is protected.
Drawings
Fig. 1 is a block diagram of the present invention.
Fig. 2 is a distribution diagram of the control system for face recognition of the present invention.
Fig. 3 is a circuit diagram of the infrared sensing module of the present invention.
FIG. 4 is a circuit diagram of a power storage module according to the present invention.
Fig. 5 is a circuit diagram of the delay trigger module of the present invention.
Fig. 6 is a circuit diagram of a light control module of the present invention.
Fig. 7 is a circuit diagram of a lamp group module of the present invention.
Detailed Description
As shown in fig. 1, in this embodiment, an acquisition face recognition control system includes:
the infrared sensing module is used for collecting the heat effect of people in the access control detection range;
the power storage module is used for storing the input power and providing a reserve power when the access control detection system is powered off so as to ensure the normal operation of the access control acquisition system;
the time delay triggering module is used for carrying out time delay control on a conduction instruction of the infrared induction module for sensing the human body heat effect;
the light control module is used for adjusting resistance prevention through light sensation change so as to control the output voltage value;
and the lamp group module is used for receiving the output voltage of the light control module and further completing the brightness adjustment.
In a further embodiment, as shown in fig. 3, the infrared sensing module includes an infrared sensor C1, a resistor R1, a capacitor C4, a capacitor C1, a resistor R2, a resistor R3, a capacitor C3, a resistor R4, a controller U1, a capacitor C3, a resistor R5, a resistor R6, a capacitor C5, a resistor R7, a diode D1, and a triac U5.
In a further embodiment, pin 1 of the infrared sensor S1 in the infrared sensing module is connected to the positive terminal of a capacitor C4; the pin 2 of the infrared sensor S1 is respectively connected with one end of a resistor R1, one end of a capacitor C1 and a pin 2 of a controller U1; the pin 3 of the infrared sensor S1 is respectively connected with the other end of the resistor R1, the other end of the capacitor C1 and a pin 5 of a controller U1; the negative end of the capacitor C4 is respectively connected with a pin 4 of the U1 of the controller and a ground wire GND; the pin 1 of the controller U1 is respectively connected with one end of a capacitor C2 and one end of a resistor R4; the other end of the capacitor C2 is connected with a pin 3 of a U1 of the controller; the pin 6 of the controller U1 is connected with one end of a resistor R2; the other end of the resistor R2 is respectively connected with an input power supply VDD and one end of a resistor R3; the other end of the resistor R3 is connected with a pin 7 of a U1 of the controller; the pin 9 of the controller U1 is connected with the positive end of a capacitor C5; the negative end of the capacitor C5 is respectively connected with one end of a resistor R7 and a ground wire GND; the other end of the resistor R7 is respectively connected with a pin 12 of a U1 of the controller and a pin 3 of a bidirectional triode thyristor U5; the pin 10 of the controller U1 is connected with an input power supply VDD; the pin 11 of the controller U1 is connected with one end of a resistor R6; the other end of the resistor R6 is connected with a pin 1 of a bidirectional thyristor U5; the pin 13 of the controller U1 is respectively connected with one end of a resistor R5, one end of a capacitor C3 and the other end of a resistor R4; the pin 15 of the controller U1 is respectively connected with the other end of the capacitor C13 and the other end of the resistor R5; the pin 14 of the controller U1 is connected with the positive end of a diode D1; and the cathode end of the diode D1 is respectively connected with an input power supply VDD and a pin 2 of a bidirectional triode thyristor U5.
In a further embodiment, as shown in fig. 4, the power storage module includes a resistor R14, a resistor R13, a diode D5, a diode D6, a transistor Q1, a transistor Q2, a controllable regulator U2, a diode D4, a resistor R17, a resistor R16, a bidirectional silicon U6, and a lithium battery B1.
In a further embodiment, one end of the resistor R13 in the power storage module is respectively connected to one end of a resistor R14, a collector terminal of a transistor Q2, a positive terminal of a diode D5, a negative terminal of a diode D6, a negative terminal of a diode D1, an input power VDD, and a pin 2 of a triac U5; the other end of the resistor R13 is respectively connected with a base terminal of a triode Q2, a pin 3 of a controllable voltage stabilizer U2, one end of a resistor R15, one end of a resistor R17, a pin 2 of a bidirectional silicon U6 and a collector terminal of a triode Q1; the emitter terminal of the triode Q2 is connected with the other end of the resistor R15; the other end of the resistor R14 is respectively connected with the positive end of a diode D4, one end of a resistor R16, the negative end of a lithium battery B1 and a ground wire GND; the base end of the triode Q1 is connected with the cathode end of the diode D5; the emitter terminal of the triode Q1 is connected with the positive terminal of a diode D6; the negative end of the diode D4 is connected with a pin 2 of a controllable voltage regulator U2; the pin 1 of the controllable voltage stabilizer U2 is respectively connected with the other end of the resistor R17 and the other end of the resistor R16; and the positive end of the lithium battery B1 is connected with a pin 1 of a bidirectional silicon U6.
In a further embodiment, as shown in fig. 5, the delay trigger module includes a lamp LED1, a resistor R11, a resistor R12, a timer U3, a diode D3, a trimming resistor V1, and a capacitor C6.
In a further embodiment, one end of the resistor R11 in the delay trigger module is respectively connected to pin 1, pin 7, pin 3 of the timer U3, the negative terminal of the diode D3, one end of the trimming resistor V1, the other end of the resistor R7, pin 12 of the controller U1, and pin 3 of the triac U5; the other end of the resistor R11 is respectively connected with the positive end of a diode D3, the other end of a trimming resistor V1, a ground wire GND, a pin 8 of a U3 of a timer and the negative end of a capacitor C6; the negative electrode end of the lamp LED1 is connected with one end of a resistor R12; the other end of the resistor R12 is connected with pin 5 of a timer U3.
In a further embodiment, as shown in fig. 6, the light control module includes a photo resistor RT1, a variable resistor RV1, a resistor R9, a resistor R8, an operational amplifier U4, a resistor R10, and an inductor L1.
In a further embodiment, one end of the photo resistor RT1 in the photo control module is connected to pin 3 of a variable resistor RV 1; the other end of the photoresistor RT1 is respectively connected with one end of a resistor R8, a pin 4 of an operational amplifier U4, a negative electrode end of a lamp LED1 and one end of a resistor R12; pin 1 of the variable resistor RV1 is connected with pin 3 of an operational amplifier U4; pin 2 of the variable resistor RV1 is respectively connected with one end of a resistor R9, a pin 7 of an operational amplifier U4, one end of an inductor L1, one end of a resistor R11, a pin 1 of a timer U3, a pin 7, a pin 3, a negative electrode end of a diode D3, one end of a trimming resistor V1, the other end of the resistor R7, a pin 12 of a controller U1 and a pin 3 of a bidirectional thyristor U5; the other end of the resistor R9 is respectively connected with the other end of the resistor R8, the pin 2 of the operational amplifier U4 and one end of the resistor R10; the other end of the resistor R10 is respectively connected with the other end of the inductor L1 and the pin 6 of the operational amplifier U4.
In a further embodiment, as shown in fig. 7, the lamp set module includes a transistor Q3, a diode D2, a resistor R19, a resistor R18, a lamp LED2, and a lamp LED 3.
In a further embodiment, the emitter terminal of the triode Q3 in the lamp set module is respectively connected to the command output terminal OUT, the pin 2 of the variable resistor RV1, the one end of the resistor R9, the pin 7 of the operational amplifier U4, the one end of the inductor L1, the one end of the resistor R11, the pin 1 of the timer U3, the pin 7, the pin 3, the cathode terminal of the diode D3, the one end of the trimming resistor V1, the other end of the resistor R7, the pin 12 of the controller U1, and the pin 3 of the triac U5; the base terminal of the triode Q3 is respectively connected with the other end of the resistor R10, the other end of the inductor L1 and a pin 6 of the operational amplifier U4; the collector terminal of the triode Q3 is respectively connected with the cathode terminal of the diode D2, one end of the resistor R19 and one end of the resistor R18; the positive end of the diode D2 is respectively connected with the negative end of the lamp LED2 and the negative end of the lamp LED 3; the positive end of the lamp LED2 is connected with the other end of the resistor R19; and the positive end of the lamp LED3 is connected with the other end of the resistor R18.
In a further embodiment, the triode Q1 is connected to an input power source through a base terminal and an emitter terminal, and a collector terminal is connected to the lithium battery B1, so as to control the output of the lithium battery B1 for storing power according to a change in voltage value, thereby maintaining the operation of the access control detection system.
In a further embodiment, the controllable voltage regulator U2 is a voltage regulation circuit, which regulates the input voltage of the input power VDD, and keeps the voltage stable when charging the lithium battery B1, thereby regulating the output voltage of the lithium battery B1 to be stable.
In a further embodiment, as shown in fig. 2, the capacitor C4, the capacitor C5, and the capacitor C6 are electrolytic capacitors; the diode D1, the diode D2, the diode D3, the diode D4, the diode D5 and the diode D6 are all voltage-regulator diodes; the model of the triode Q1 and the model of the triode Q2 are both NPN; the model of the triode Q3 is PNP; the controller U1 is TDH 98072; the model of the timer U3 is NE 555; the controllable voltage regulator U2 is model TL 431.
In a further embodiment, a control method of a control system for face recognition acquisition is characterized by the following steps:
step 4, receiving the conversion output voltage of the infrared induction module, prolonging the voltage transmission by adopting a mode of blocking the output voltage transmission, and realizing a delay trigger effect, thereby reducing the long-time voltage loss and further finishing the output of delay control voltage;
step 5, transmitting the delayed voltage to a light sensation control circuit, and adjusting the light supplement brightness of the entrance guard face recognition system by utilizing the brightness of natural light so as to realize the brightness of the natural light and control the brightness of the light supplement, thereby reducing the loss of electric energy and the visual influence on human eyes in a dark state;
step 6, a triode is used as a non-contact switch to control the transmission of voltage, so that the internal resistance is changed according to the brightness change of natural light, the output value of the voltage is reduced, and the brightness change adjustment is further realized;
and 7, adopting voltage division for processing, thereby providing different branch voltages, directly providing operating voltage for the face recognition system, and enabling the camera inside the entrance guard to shoot entrance guard personnel, so that the shot image is compared with the cloud storage image, further completing the detection of the entrance guard personnel and protecting the safety of residents.
In summary, the present invention has the following advantages: the infrared induction module senses the human body heat effect through infrared irradiation, control of an infrared induction command on an access control acquisition system is completed, the capacitor C4 filters interference in heat conduction signals, transmission quality of the signals is further improved, the capacitor C1 is used for providing stored electric energy for the infrared sensor S1, operation response speed is further improved, the controller U1 performs conversion control on the received acquisition signals, the capacitor C5 filters the interference in conversion, the bidirectional thyristor U5 achieves conduction voltage, the time delay trigger module is powered on, time delay control is further performed according to the conduction voltage, signal acquisition within set time is kept, the next-stage module can be powered on to operate, the power supply storage module stores input power under detection of the infrared induction module, accordingly, an emergency reserve power supply is started when the system is powered off, the voltage stabilizer U2 stabilizes the input voltage, and the transmission of voltage is controlled by the triode Q2, the triode Q1 judges whether input voltage exists or not according to the voltage value of the base terminal, so that the transmission of a reserve power supply is controlled, and normal power supply is guaranteed; the light control module obtains the voltage of a negative terminal by utilizing the brightness of the lamp LED1, the detection signal is amplified through an amplifier U4, a variable resistor RV1 adjusts the output voltage value according to the change of the blocking, a photosensitive resistor RT1 changes the size of the internal blocking according to the change of illumination, and therefore the voltage is adjusted, the light control module receives the conduction voltage of the delay trigger module, and the output voltage is adjusted according to the brightness of natural light; and triode Q3 control voltage's transmission in the banks module, lamp LED2 and lamp LED3 are according to the size of receiving the magnitude of voltage, show different luminance, and then the luminance of the brightness control system lamps and lanterns according to the natural light, make conducting voltage transmit for face identification system when lighting lamps and lanterns through, thereby compare the image that the image and the high in the clouds storage of camera collection, reach under the state that the image accords with, just can realize opening of entrance guard, and then accomplish entrance guard's face and know, and then improve control system's stability.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.
Claims (7)
1. The control system for face recognition acquisition is characterized by comprising the following modules:
the infrared sensing module is used for collecting the heat effect of people in the access control detection range;
the power storage module is used for storing the input power and providing a reserve power when the access control detection system is powered off so as to ensure the normal operation of the access control acquisition system;
the time delay triggering module is used for carrying out time delay control on a conduction instruction of the infrared induction module for sensing the human body heat effect;
the light control module is used for adjusting the resistance value of the resistor through light sensation change so as to control the output voltage value;
the lamp group module is used for receiving the output voltage of the light control module and further completing brightness adjustment;
the power supply storage module comprises a resistor R14, a resistor R13, a diode D5, a diode D6, a triode Q1, a triode Q2, a controllable voltage stabilizer U2, a diode D4, a resistor R17, a resistor R16, a bidirectional silicon U6 and a lithium battery B1, wherein one end of the resistor R13 is respectively connected with one end of a resistor R14, a collector 2 end of the triode Q2, a positive end of the diode D5, a negative end of the diode D6, a negative end of the diode D1, an input power supply VDD and a pin 2 of the bidirectional silicon controlled U5; the other end of the resistor R13 is respectively connected with a base terminal of a triode Q2, a pin 3 of a controllable voltage stabilizer U2, one end of a resistor R15, one end of a resistor R17, a pin 2 of a bidirectional silicon U6 and a collector terminal of a triode Q1; the emitter terminal of the triode Q2 is connected with the other end of the resistor R15; the other end of the resistor R14 is respectively connected with the positive end of a diode D4, one end of a resistor R16, the negative end of a lithium battery B1 and a ground wire GND; the base end of the triode Q1 is connected with the cathode end of the diode D5; the emitter terminal of the triode Q1 is connected with the positive terminal of a diode D6; the negative end of the diode D4 is connected with a pin 2 of a controllable voltage regulator U2; the pin 1 of the controllable voltage stabilizer U2 is respectively connected with the other end of the resistor R17 and the other end of the resistor R16; the positive end of the lithium battery B1 is connected with a pin 1 of a bidirectional silicon U6;
the triode Q1 is connected with an input power supply through a base electrode end and an emitter electrode end, and a collector electrode end is connected with the lithium battery B1, so that the output of a storage power supply of the lithium battery B1 is controlled according to the change of the voltage value, and the running of the access control detection system is maintained.
2. The control system for acquiring the human face recognition according to claim 1, wherein the infrared sensing module comprises an infrared sensor S1, a resistor R1, a capacitor C4, a capacitor C1, a resistor R2, a resistor R3, a capacitor C3, a resistor R4, a controller U1, a capacitor C3, a resistor R5, a resistor R6, a capacitor C5, a resistor R7, a diode D1 and a bidirectional thyristor U5, wherein a pin 1 of the infrared sensor S1 is connected with a positive terminal of the capacitor C4; the pin 2 of the infrared sensor S1 is respectively connected with one end of a resistor R1, one end of a capacitor C1 and a pin 2 of a controller U1; the pin 3 of the infrared sensor S1 is respectively connected with the other end of the resistor R1, the other end of the capacitor C1 and a pin 5 of a controller U1; the negative end of the capacitor C4 is respectively connected with a pin 4 of the U1 of the controller and a ground wire GND; the pin 1 of the controller U1 is respectively connected with one end of a capacitor C2 and one end of a resistor R4; the other end of the capacitor C2 is connected with a pin 3 of a U1 of the controller; the pin 6 of the controller U1 is connected with one end of a resistor R2; the other end of the resistor R2 is respectively connected with an input power supply VDD and one end of a resistor R3; the other end of the resistor R3 is connected with a pin 7 of a U1 of the controller; the pin 9 of the controller U1 is connected with the positive end of a capacitor C5; the negative end of the capacitor C5 is respectively connected with one end of a resistor R7 and a ground wire GND; the other end of the resistor R7 is respectively connected with a pin 12 of a U1 of the controller and a pin 3 of a bidirectional triode thyristor U5; the pin 10 of the controller U1 is connected with an input power supply VDD; the pin 11 of the controller U1 is connected with one end of a resistor R6; the other end of the resistor R6 is connected with a pin 1 of a bidirectional thyristor U5; the pin 13 of the controller U1 is respectively connected with one end of a resistor R5, one end of a capacitor C3 and the other end of a resistor R4; the pin 15 of the controller U1 is respectively connected with the other end of the capacitor C3 and the other end of the resistor R5; the pin 14 of the controller U1 is connected with the positive end of a diode D1; and the cathode end of the diode D1 is respectively connected with an input power supply VDD and a pin 2 of a bidirectional triode thyristor U5.
3. The control system for face recognition acquisition according to claim 1, wherein the time delay trigger module comprises a lamp LED1, a resistor R11, a resistor R12, a timer U3, a diode D3, a trimming resistor V1 and a capacitor C6, wherein one end of the resistor R11 is respectively connected with pin 1 of the timer U3, pin 7, pin 3, a negative end of a diode D3, one end of the trimming resistor V1, the other end of the resistor R7, pin 12 of the controller U1 and pin 3 of a triac U5; the other end of the resistor R11 is respectively connected with the positive end of a diode D3, the other end of a trimming resistor V1, a ground wire GND, a pin 8 of a U3 of a timer and the negative end of a capacitor C6; the negative electrode end of the lamp LED1 is connected with one end of a resistor R12; the other end of the resistor R12 is connected with pin 5 of a timer U3.
4. The control system for acquiring the face recognition of the person according to claim 1, wherein the light control module comprises a photoresistor RT1, a variable resistor RV1, a resistor R9, a resistor R8, an operational amplifier U4, a resistor R10 and an inductor L1, wherein one end of the photoresistor RT1 is connected with a pin 3 of the variable resistor RV 1; the other end of the photoresistor RT1 is respectively connected with one end of a resistor R8, a pin 4 of an operational amplifier U4, a negative electrode end of a lamp LED1 and one end of a resistor R12; pin 1 of the variable resistor RV1 is connected with pin 3 of an operational amplifier U4; pin 2 of the variable resistor RV1 is respectively connected with one end of a resistor R9, a pin 7 of an operational amplifier U4, one end of an inductor L1, one end of a resistor R11, a pin 1 of a timer U3, a pin 7, a pin 3, a negative electrode end of a diode D3, one end of a trimming resistor V1, the other end of the resistor R7, a pin 12 of a controller U1 and a pin 3 of a bidirectional thyristor U5; the other end of the resistor R9 is respectively connected with the other end of the resistor R8, the pin 2 of the operational amplifier U4 and one end of the resistor R10; the other end of the resistor R10 is respectively connected with the other end of the inductor L1 and the pin 6 of the operational amplifier U4.
5. The control system for face recognition acquisition according to claim 1, wherein the lamp group module comprises a triode Q3, a diode D2, a resistor R19, a resistor R18, a lamp LED2 and a lamp LED3, wherein an emitter terminal of the triode Q3 is respectively connected with a command output terminal OUT, a pin 2 of a variable resistor RV1, one end of a resistor R9, a pin 7 of an operational amplifier U4, one end of an inductor L1, one end of a resistor R11, a pin 1 of a timer U3, a pin 7, a pin 3, a cathode terminal of a diode D3, one end of a trimming resistor V1, the other end of a resistor R7, a pin 12 of a controller U1 and a pin 3 of a triac U5; the base terminal of the triode Q3 is respectively connected with the other end of the resistor R10, the other end of the inductor L1 and a pin 6 of the operational amplifier U4; the collector terminal of the triode Q3 is respectively connected with the cathode terminal of the diode D2, one end of the resistor R19 and one end of the resistor R18; the positive end of the diode D2 is respectively connected with the negative end of the lamp LED2 and the negative end of the lamp LED 3; the positive end of the lamp LED2 is connected with the other end of the resistor R19; and the positive end of the lamp LED3 is connected with the other end of the resistor R18.
6. The control system for face recognition acquisition as claimed in claim 1, wherein the controllable voltage regulator U2 is a voltage regulation circuit for regulating the input voltage of the input power VDD, so as to keep the voltage stable when charging the lithium battery B1, thereby regulating the stability of the output voltage of the lithium battery B1.
7. A control method of a control system for face recognition collection is based on any one of the systems of claims 1-6, and is characterized by comprising the following steps:
step 1, detecting personnel in an access range by adopting an infrared sensor, wherein when the infrared sensor is irradiated by infrared light with non-constant intensity, the charge density of a surface electrode of the infrared sensor is changed due to the generated temperature change, so that pyroelectric current is generated, and when the temperature parameter of a human body is in the response range of the infrared sensor, collected one-way signals are converted into one-way output voltage by a controller;
step 2, further storing an input power supply of the infrared sensor, performing input and output control on a storage voltage by combining three states of conduction, saturation and cutoff of the triode, and further providing a stable storage power supply for the access control acquisition system, so that the normal operation of the access control acquisition system in a power-off state and a power-loss state is guaranteed;
step 3, controlling the output voltage of the infrared sensing module by adopting a series transmission mode, and performing progressive transmission on the output voltage so as to reduce the distribution of the voltage and enhance the stable operation of the module;
step 4, receiving the conversion output voltage of the infrared induction module, prolonging the voltage transmission by adopting a mode of blocking the output voltage transmission, and realizing a delay trigger effect, thereby reducing the long-time voltage loss and further finishing the output of delay control voltage;
step 5, transmitting the delayed voltage to a light sensation control circuit, and adjusting the light supplement brightness of the entrance guard face recognition system by utilizing the brightness of natural light so as to realize the brightness of the natural light and control the brightness of the light supplement, thereby reducing the loss of electric energy and the visual influence on human eyes in a dark state;
step 6, a triode is used as a non-contact switch to control the transmission of voltage, so that the internal resistance value is changed according to the brightness change of natural light, the output numerical value of the voltage is reduced, and the brightness change adjustment is further realized;
and 7, adopting voltage division for processing, thereby providing different branch voltages, directly providing operating voltage for the face recognition system, and enabling the camera inside the entrance guard to shoot entrance guard personnel, so that the shot image is compared with the cloud storage image, further completing the detection of the entrance guard personnel and protecting the safety of residents.
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| CN202010866696.1A CN112165748B (en) | 2020-08-26 | 2020-08-26 | Control system and control method for face acquisition and recognition |
| PCT/CN2020/111735 WO2022041039A1 (en) | 2020-08-26 | 2020-08-27 | Collection and facial recognition control system, and control method therefor |
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| CN202010866696.1A CN112165748B (en) | 2020-08-26 | 2020-08-26 | Control system and control method for face acquisition and recognition |
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