RenhotecIC GSM-based building access control security system

 

Telephone access control is a new type of access control security system. The system realizes the door opening of the corridor of the community by identifying the incoming call number. The system receives the incoming call information by the GSM module, obtains the incoming call number through the processing of the main control microcontroller, and judges whether it is an authorized number.

 

After making a call, the controller will automatically identify whether it is the number already stored in it, if yes, the relay will be closed, if not, it will not be open, unless it is set to a function that can be controlled by all phones. Every time the door is opened, the system will record the call time, call number and surveillance video when the door is opened, so that it can be used as investigation materials in the event of an accident. The sensor at the corridor door can identify the opening and closing of the door. When the door is opened illegally (that is, the door is not opened by a mobile phone), the system will send out an alarm to avoid abnormal events. The upper computer of the system is mainly responsible for monitoring and video recording. It only monitors when it is free, and only records when the door is opened.

 

System features:

 

1. It can store 64 user phone numbers; these numbers can be entered into the controller, no need to be connected, it will be automatically hung up, and the relay will be closed once;

 

2. When the stored mobile phone number dials the controller, the output relay of the controller is closed and then automatically disconnected;

 

3. You can use commands to set that all incoming calls can control the controller, but you can also use SMS commands to set that only the numbers that have been stored in the controller can be controlled;

 

System innovation points:

 

1. The mobile phone replaces the traditional door key;

 

2. The door lock is perfectly combined with the monitor, replacing the traditional independent monitoring system, and can clearly understand all the conditions after the door lock is opened;

 

3. GSM information transmission replaces the traditional access control wired networking method, which solves the difficult situation of wired networking and wiring, and the door opening record and abnormal event record can be filed.

 

Technical application:

 

1. For the GSM module, it is required to identify the incoming call number accurately and stably;

 

2. Production of host computer software, transforming ordinary computers into multifunctional computers with monitoring and display equipment, and capable of video recording;

 

3. Familiar with the single-chip EEPROM and its application, store the set information in the EEPROM, so that the saved information will not be lost when the power is turned off, and it is convenient for the system to call, identify and compare.

 

Technical advantages:

 

1. The system is stable and safe;

 

2. Be able to respond to incoming calls in a timely manner;

 

3. Able to control the corridor doors of more than three units;

 

4. Able to save the surveillance video.

 

At present, the access control system has gradually changed from the original key to open the door, to the access control management of the IC card, and finally to the current non-contact IC card access control system. The GSM-based access control system of this work uses non-contact IC cards to control access, and uses mobile phone communication to realize remote door opening. The system also perfectly combines the access control system with the monitoring system, and can record the time of opening the door, unit number, caller number and the surveillance video when opening the door, so that it can be used as investigation materials in the event of an accident.

 

 

 

Summary: Zhijie telephone access control system is one of the most modern and advanced access control systems. It uses the latest central processing unit (CPU). All data will not be lost due to power failure. Using the latest technology, it can control various automatic locks. In this way, door lock control is realized, making users safer and more convenient. RTU5015 can also be used for home equipment control, such as the switch of TV, air conditioner, electric fan, refrigerator and other home appliances; it can also be used for industrial control, such as the rotation of motor and the switch of valve. Machine switches and so on. The control of RTU5015 only needs to make a call, and the device does not need to answer the phone. The control is simple and saves money, which is deeply loved by users.