CN210052216U

CN210052216U - Intelligent access control system

Info

Publication number: CN210052216U
Application number: CN201921223859.3U
Authority: CN
Inventors: 杨会福; 黄云刚
Original assignee: Jiangxi Xunsen Intelligent Technology Co Ltd
Current assignee: Jiangxi Xunsen Intelligent Technology Co Ltd
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2020-02-11
Anticipated expiration: 2029-07-31

Abstract

The utility model discloses an intelligent access control system, including entrance guard's all-in-one, power supply box, the button of going out, magnetic lock and armature, the magnetic lock is installed on the door frame through the sheet metal component, the armature is installed on the door leaf, the entrance guard's all-in-one is installed outside the door, the button of opening the door is installed in the door, the entrance guard's all-in-one, the button of going out, magnetic lock respectively with the power supply box electricity is connected; the gate inhibition all-in-one machine comprises a keyboard input module and a fingerprint identification module. The utility model has the advantages that the safety performance of the entrance guard is dually ensured by combining the biological identification system and the password identification through the identification mode of matching the password and the fingerprint; an ATK-AS608 fingerprint identification module is adopted for fingerprint identification circuit design, an AS608 fingerprint identification chip is adopted for the ATK-AS608 module, a DSP operation unit is arranged in the chip, a fingerprint identification algorithm is integrated, and the image acquisition can be efficiently and quickly carried out and fingerprint characteristics can be identified.

Description

Intelligent access control system

Technical Field

The utility model relates to an entrance guard's safety technical field, concretely relates to intelligent access control system.

Background

In our present life, electronic locks have various types and different functions, but the quality of the electronic locks is different, and the difference between the quality and the quality is obvious. The electronic locks with low cost and low price are full of the market, the potential safety hazard is increased when the electronic locks are used, and the incomplete functions of the electronic locks can bring unnecessary troubles in use. The existing access control system mostly adopts a card reader to swipe a card for opening a door, changes the original complex work of manual recording of access, can completely store the records, can facilitate people to check and browse the records later, and can provide safety protection for the data. The useful life of the magnetic card is limited, however, by the material of the card being torn and worn during use, or requiring renewal or reissue. The new gap will be compensated by the biometric technology, which will solve the problem of short usage time of the magnetic card. Therefore, to do this, we add biometric authentication techniques to the access control system.

Chinese patent: the utility model provides an access control system (application number CN 201620690480.3) based on speech recognition and fingerprint identification has announced an access control system based on speech recognition and fingerprint identification, it comprises pickproof lock, the shop front, host system, speech recognition module, fingerprint identification module, power module, alarm module, characterized by speech recognition module, fingerprint identification module all link to each other with host system, power module links to each other with host system and each module and supplies power, host system links to each other with alarm module. The utility model has the following effects: under the condition that the key is not needed, the unlocking effect is achieved through the fingerprint and the sound, convenience and safety are achieved, the device is simple in structure, and meanwhile, the anti-theft alarm function is also achieved. The patent utilizes a biological identification technology, has good anti-counterfeiting performance, but is easily influenced by physical conditions, age, emotion and the like due to the changeability of the sound of the same person; there are also problems that different microphones and channels have influence on the recognition performance, environmental noise has interference on the recognition, and the voiceprint features of people are not easy to extract under the condition of mixing speakers.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an intelligent access control system to prior art not enough, adopted two kinds of input modes of keyboard input and fingerprint input, dual fail-safe, the security performance is high.

In order to achieve the above object, the utility model discloses a following scheme realizes: the intelligent access control system comprises an access control all-in-one machine, a power box, an exit button, a magnetic lock and an armature, wherein the magnetic lock is installed on a door frame through a sheet metal part, the armature is installed on a door leaf, the access control all-in-one machine is installed outside a door, the exit button is installed inside the door, and the access control all-in-one machine, the exit button and the magnetic lock are respectively and electrically connected with the power box;

the gate inhibition all-in-one machine comprises a keyboard input module and a fingerprint identification module.

The sheet metal component includes mounting panel and support, the mounting panel is installed on the door frame, the support passes through screw fixed mounting on the door frame, the mounting panel both ends form with the leg joint respectively and place the space, the magnetic lock is installed place in the space.

The armature is installed on the door leaf through a chain, one end of the chain is connected with the armature, and the other end of the chain is fixed on the door leaf.

The power box comprises a power circuit, the power circuit comprises a transformer, a rectifying circuit and an LM2576, the transformer converts 220VAC into 24VAC, the rectifying circuit is used for converting alternating current into direct current 24VDC, and the LM2576 is used for converting the direct current 24VDC into direct current 5 VDC.

The gate inhibition all-in-one machine comprises a controller, wherein the controller adopts an STC89C52 single chip microcomputer, and the controller is connected with a reset circuit and a crystal oscillator circuit.

The entrance guard's all-in-one includes the gate control circuit, and the gate control circuit controls through the relay control electro-magnet the switch of magnetic force lock, the gate control circuit input with the controller electricity is connected.

Preferably, the fingerprint identification module adopts an ATK-AS608 fingerprint identification module.

Preferably, the entrance guard all-in-one machine further comprises an alarm, the alarm adopts a piezoelectric buzzer, and the alarm is electrically connected with the controller through a triode.

The utility model has the advantages that: 1. the identification mode of matching the password and the fingerprint is selected, and the safety performance of the access control is doubly guaranteed by combining a biological identification system and password identification;

2. the magnetic lock is firmly fixed on the door frame through the sheet metal part, the magnetic lock can be prevented from falling off, the magnetic lock is arranged on the door leaf through the chain, and if the fixing screw of the armature looses or falls off, the chain plays a role in falling off prevention, so that people can be protected from being injured;

3. an ATK-AS608 fingerprint identification module is adopted for fingerprint identification circuit design, an AS608 fingerprint identification chip is adopted for the ATK-AS608 module, a DSP operation unit is arranged in the chip, a fingerprint identification algorithm is integrated, and the image acquisition can be efficiently and quickly carried out and fingerprint characteristics can be identified.

Drawings

The invention will be further explained with reference to the drawings:

FIG. 1 is a schematic view of a magnetic lock installation;

FIG. 2 is a view showing the structure at A in FIG. 1;

FIG. 3 is a view showing a structure at B in FIG. 1;

FIG. 4 is a power supply circuit;

FIG. 5 is a key input circuit;

FIG. 6 is a display circuit;

FIG. 7 is an alarm circuit;

FIG. 8 is a gate control circuit;

FIG. 9 is a fingerprint identification circuit;

FIG. 10 is a controller circuit;

FIG. 11 is a reset circuit;

FIG. 12 is a crystal oscillator circuit;

in the figure: the magnetic lock comprises a door frame 1, a magnetic lock 2, a door leaf 3, a chain 4, an armature 5, a sheet metal part 6, a mounting plate 601 and a support 602.

Detailed Description

As shown in fig. 1, the intelligent access control system comprises an access control all-in-one machine, a power box, an exit button 3, a magnetic lock 2 and an armature 5, wherein the magnetic lock 2 is installed on a door frame 1 through a sheet metal part 6, the armature 5 is installed on a door leaf 3, the access control all-in-one machine is installed outside a door, the exit button is installed inside the door, and the access control all-in-one machine, the exit button and the magnetic lock 2 are respectively and electrically connected with the power box;

the gate inhibition all-in-one machine comprises a keyboard input module and a fingerprint identification module. The identification mode of matching the password and the fingerprint is selected, and the safety performance of the access control is guaranteed through the combination of the biological identification system and the password identification.

Sheet metal component 6 includes mounting panel 601 and support 602, mounting panel 601 is installed on door frame 1, support 602 passes through screw fixed mounting on door frame 1, mounting panel 601 both ends are connected with support 602 respectively and are formed the space of placing, magnetic lock 2 is installed place in the space. The sheet metal component is for preventing that the magnetic lock drops and the support that carries out the protection, and structure from this, magnetic lock 2 can firmly be fixed on door frame 1.

The armature 5 is installed on the door leaf 3 through a chain 4, one end of the chain 4 is connected with the armature 5, and the other end of the chain is fixed on the door leaf 3. With the structure, if the fixing screw of the armature 5 is loosened or falls off, the chain 4 plays a role of falling prevention, and people can be protected from being injured.

The power box comprises a power circuit, the power circuit comprises a transformer, a rectifying circuit and an LM2576, the transformer converts 220VAC into 24VAC, the rectifying circuit is used for converting alternating current into direct current 24VDC, and the LM2576 is used for converting the direct current 24VDC into direct current 5 VDC. As shown in fig. 4, the power indication is performed by the light emitting diode D3.

The gate inhibition all-in-one machine comprises a controller, wherein the controller adopts an STC89C52 single chip microcomputer, and the controller is connected with a reset circuit and a crystal oscillator circuit. Fig. 10 shows a controller circuit.

The entrance guard's all-in-one includes the gate control circuit, and the gate control circuit controls through the relay control electro-magnet the switch of magnetic force lock 2, the gate control circuit input with the controller electricity is connected. As shown in fig. 8, an optical coupler PS2703 is used for isolation. The relay selects a normally closed relay, the system is powered on, the relay passes through current, the electromagnet is powered on, and the door is in a closed state.

The fingerprint identification module adopts an ATK-AS608 fingerprint identification module. The ATK-AS608 module adopts an AS608 fingerprint identification chip of a domestic famous fingerprint identification company, and a DSP operation unit is arranged in the chip. The integrated fingerprint identification algorithm can efficiently and quickly acquire images and identify fingerprint characteristics.

The fingerprint identification module may also employ an FPM10A optical fingerprint module. As shown in fig. 9, a fingerprint recognition circuit.

This patent can use fourth generation fingerprint identification technology to realize 3D fingerprint protection (if hua does), and for the fingerprint identification technology of the first three generations, the fingerprint information can more effective accurate acquireing of fourth generation fingerprint, possesses anti-fake performance. The built-in fingerprint anti-counterfeiting algorithm can intelligently identify the fake hand value made by stealing the fingerprint, and the safety of the user is improved.

The entrance guard all-in-one still includes the alarm, the alarm adopts the piezoelectricity bee calling organ, the alarm pass through the triode with the controller electricity is connected. As shown in fig. 7, the resistor functions as a current limiting function, and the transistor functions as a current spreading function. Because the driving capability of the singlechip is limited, the triode is necessary to be used for expanding the flow so as to meet the control requirement. After receiving the error input signal, the singlechip outputs a low level signal from the P2.1 port. At the moment, the triode is opened, and the buzzer gives an alarm to realize the alarm function. And when the output is high level, the buzzer is in a dormant state.

The gate inhibition all-in-one machine comprises a display screen, wherein the display screen adopts a liquid crystal display screen, and the liquid crystal display screen is electrically connected with the controller. In this embodiment, a 1602LCD is used, and the display circuit is shown in FIG. 6.

The utility model discloses the theory of operation: the power supply used in the access control system is of a weak current type, and when current passes through a silicon steel sheet, the magnetic lock 2 can generate strong suction to tightly suck the armature 5 to achieve the effect of locking the door. The user inputs a password and a fingerprint, and the card swiping personnel is identified to be legal or not, if the card swiping personnel is legal, the power can be cut off, and the magnetic lock loses the suction force to open the door.

The keyboard input module adopts a 3-by-4 matrix keyboard. The keyboard is convenient to use, simple in design and low in manufacturing cost. As shown in fig. 5, is a key input circuit.

Claims

1. Intelligent access control system, its characterized in that: the door control integrated machine comprises a door control integrated machine, a power box, an exit button, a magnetic lock (2) and an armature (5), wherein the magnetic lock (2) is installed on a door frame (1) through a sheet metal part (6), the armature (5) is installed on a door leaf (3), the door control integrated machine is installed outside a door, the exit button is installed inside the door, and the door control integrated machine, the exit button and the magnetic lock (2) are respectively and electrically connected with the power box;

2. The intelligent access control system of claim 1, wherein: sheet metal component (6) are including mounting panel (601) and support (602), mounting panel (601) are installed on door frame (1), screw fixed mounting is passed through on door frame (1) in support (602), mounting panel (601) both ends are connected with support (602) respectively and are formed and place the space, install magnetic lock (2) place in the space.

3. The intelligent access control system of claim 1, wherein: the armature (5) is installed on the door leaf (3) through a chain (4), one end of the chain (4) is connected with the armature (5), and the other end of the chain is fixed on the door leaf (3).

4. The intelligent access control system of claim 1, wherein: the power box comprises a power circuit, the power circuit comprises a transformer, a rectifying circuit and an LM2576, the transformer converts 220VAC into 24VAC, the rectifying circuit is used for converting alternating current into direct current 24VDC, and the LM2576 is used for converting the direct current 24VDC into direct current 5 VDC.

5. The intelligent access control system of claim 1, wherein: the gate inhibition all-in-one machine comprises a controller, wherein the controller adopts an STC89C52 single chip microcomputer, and the controller is connected with a reset circuit and a crystal oscillator circuit.

6. The intelligent access control system of claim 5, wherein: the entrance guard's all-in-one includes the gate control circuit, and the gate control circuit controls through the relay control electro-magnet the switch of magnetic force lock (2), the gate control circuit input with the controller electricity is connected.

7. The intelligent access control system of claim 1, wherein: the fingerprint identification module adopts an ATK-AS608 fingerprint identification module.

8. The intelligent access control system of claim 5, wherein: the entrance guard all-in-one still includes the alarm, the alarm adopts the piezoelectricity bee calling organ, the alarm pass through the triode with the controller electricity is connected.

9. The intelligent access control system of claim 1, wherein: the gate inhibition all-in-one machine comprises a display screen, wherein the display screen adopts a liquid crystal display screen, and the liquid crystal display screen is electrically connected with the controller.