The access control system is an effective measures to solve important department entrance and export to realize security management. It is also a big popularity of graduation design, curriculum design, and organizes the design plan of 8 access control systems in the circuit city. Interested in learning.
1. STM32 single-chip smart door banned doorbell thermal release body induction light alarm + RFID access to electromagnetic lock design - (Schematic + Program Source)
This design is made by STM32F103C8T6 single-chip core circuit + Dial switch selection circuit + button circuit + highlight LED light circuit + LCD1602 LCD display circuit + buzzer alarm circuit + + photosensitive resistance detection light intensity circuit + hot release infrared induction module E18 circuit + Power circuit consists.
1, through the hot release infrared sensor detection whether there is anyone, if someone is close to the door, the LCD screen prompts to show the welcome words: Welcome to Home! When you detect someone, open the light, the lamp uses 9 highlighted LED lamp design, no When people, turn the lights.
2, the owner can set the working state of the access control system, there are two states in the family and no one. By a dial switch setting, call it, the liquid crystal shows someone: somebody! , Dialedate the liquid crystal display Nobody: NoDy! When someone, the guest pressed the doorbell, the buzzer called tips, no one, the guest pressed the doorbell, no response.
3. Outside the personnel of the door have time alarm information is issued for a certain period of time.
https://www.cirmall.com/circuit/19490
2, smart access control system based on STM32 single-chip - LCD1602-RFID - (Source + Circuit Figure)
This design is composed of STM32F103C8T6 single-chip core board + LCD1602 liquid crystal display circuit + RFID module circuit + button circuit + relay circuit.
1. After matching the card, the relay is closed (disconnected after 3 seconds)
2, by pressing the button, the password can be input, 1602 liquid crystal display password, password input is correct, relay closed (disconnected after 3 seconds). Password default 0000.
https://www.cirmall.com/circuit/19746
3, entry-access control system full design project (schematic + PCB source file + source code, etc.)
Based on ATMEGA328 (Atmega328 Data Manual) MCU design, with call, ringing, picking, call, unlocking function, but also have a keyboard and display circuitry.
Access control system design ideas:
The system uses AD, UART, PWM, SPI, considering the volume of finished products, using Arduino Nano
Voice sampling uses the electret microphone, set up 200 times, then 8KHz, 8kHz, can achieve phone sound quality, meet demand
The visual control system is multi-to-one, distance 10 ~ 100m, communication rate to meet voice communication, control signal transmission, so 485 communication, communication rate 512kbps
Voice Play 8-bit PWM, amplifier chip uses common LM386
The display uses NOKIA5110, SPI communication
The keyboard uses a 10-bit ADC keyboard, 16 buttons
Unlocking circuit uses relay implementation
https://www.cirmall.com/circuit/2412
4,51 single-chip RFID intelligent access control system infrared flow count statistics 102- (PCB + source + circuit diagram + reference document)
This system consists of STC89C52 single-chip core board, RFID card reader module, relay, LCD1602 liquid crystal display, buzzer alarm, infrared avoidance sensor, and power supply.
1. After the matching RFID module detects the card, the relay is closed. The liquid crystal is displayed through the words. After 3S left and right, the relay is automatically disconnected. Indicates that the swipe is successful, the gate is opened, and the person passes.
2, after the matching RFID card, the relay is not closed if the brush is not written to the system card buzzer alarm, and the display on the liquid crystal does not pass characters.
3, by the infrared avoidance sensor count, if someone is sensed, the liquid crystal counts plus 1.
Https://www.cirmall.com/circuit/17956
5. IC access control code lock circuit scheme design (source code + PCB) based on STC89C52
Function:
(1) Read the card function for the IC card
(2) Add management card
(3) Increase, delete user card features
(4) Change the management card
(5) Change your password
(6) Keyboard control management card operation
(7) Buzzer realizes credit card tips
(8) LED light prompt
https://www.cirmall.com/circuit/17147
6, STM32 RFID Intelligent Access Control System Design (with source code + principle + PCB and other materials)
STM32F103 microcontroller + LCD1602 LCD display + RC522 RF card + buzzer alarm + function button + relay module
Function description
1. LCD1602 LCD display current information
2. Press to register, delete, return to the current IC card
3. After the registration is successful, the credit card success relay is opened.
4. Sensing the buzzer reminder after IC card
https://www.cirmall.com/circuit/17519
7, based on 51 single-chip RFID access control system design (source program + schematic + BOM table)
The system is composed of STC89C52 single chip circuit + RFID sensor module + LCD1602 liquid crystal display circuit + relay circuit + button circuit + power circuit circuit.
1. Read the card information via the RFID MC522.
2, by the button can be card number, delete the card number, with the power-down no loss function.
3. If the information of the card number is entitled, the relay is closed, otherwise the relay does not operate (the relay is default).
4. After the relay is closed, it can be disconnected by pressing the button.
https://www.cirmall.com/circuit/15734
8, iris access control system design
The working principle of SW-IRCTL iris access is: use iris recognition, 13.56M card identification technology intelligently controls the door. After reading the iris information acquisition or the internal information of the M1 card, the information compared with the internal storage, see if it is a valid information, the alignment, open the door, otherwise it will not open the door.
You can add, modify, delete, etc., modify, delete, etc., by the host computer client software.
Time to open the electronic lock can be adjusted manually.
The main application direction of the product: the place with strict requirements of entering personnel, adopting iris biological identification technology, or using the M1 card or ID card identification, according to the requirements of the verification method according to yourself.
The product is rechargeable battery. When an unexpected power outage, the battery can supply power to the system, maintain the normal operation of the access control system, and use the door switch to open the door. You need to use the mobile phone mobile power to connect to the iris equipment to supply it to it. When you come back, the board will automatically charge the rechargeable lithium battery.
Main function of the product: the switch of the intelligent control door.
Communication Function: Support TCP \ IP Communication.
https://www.cirmall.com/circuit/15943
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