Traditional application
Two way radio is mainly used in public security, civil aviation, transportation, water conservancy, railway, manufacturing, construction, service and other industries, for communication and command and dispatch between group members, to improve the communication efficiency and improve the rapid response ability to deal with emergencies. As two way radios enter the civil market, people go out to travel, shopping also began to use more and more radios.
In addition, there are some special occasions to use the radio, such as explosion-proof two way radio, waterproof radio, police intercom.Mobole radio can also be included in the use of intercom category.
Access control radio
With the progress of science and technology, two way radio is more and more widely used in the security industry, access control intercom system is produced in this way. The access control radio is to apply the two way radio to the access control system. Users can make calls or video communications through the two way radio. The access control intercom system mainly consists of the intercom host, intercom extension, UPS power supply, electric control lock, and door closing device. According to the type can be divided into direct press type, digital type, digital type household pass, direct press type visual intercom, digital type visual intercom, digital type household pass visual intercom, etc
Intercom host
Intercom host is the building intercom system control essential part, each extension of the transmission signal and electric lock control signal are controlled by the host, its circuit board using vibration reduction installation, and moisture-proof treatment, anti-vibration moisture-proof ability is very strong, and with night lighting device, beautiful appearance, generous.
Intercom extension
Intercom extension is a kind of intercom, generally with the host intercom, household-connected building intercom system with the host into a set of internal telephone system can complete the system of user telephone contact, more convenient to use, it is divided into visual extension, non-visual extension. With electric lock control function and monitoring function, generally installed at the door of the user's home, the main convenience of residents and visitors to talk to each other.
UPS power supply
Its main function is to keep the building intercom system power. Normally, it is charged. When a power failure occurs, the UPS power supply is in the state of supplying power to the system. Building intercom system, manufacturers generally do not use UPS battery, mainly visual system power consumption is too large, general small capacity UPS battery can not ensure the use of time!
Electric control lock
Its internal structure is mainly composed of electromagnetic mechanism. As long as the user presses the electric lock key on the extension, the electromagnetic coil can be energized, so that the electromagnetic mechanism drives the connecting rod action, and the door can be controlled to open. It is a special automatic door closing connecting rod mechanism. It has a regulator, can adjust the acceleration and force of action, easy to use, flexible.
Working principle
Visitors can call the residents and talk to them conveniently through the host in front of the downstairs unit. The residents control the opening and closing of the door of the unit in the household, and the host of the community can receive the residents alarm signal at any time to the host on duty to notify the security personnel of the community. The system not only enhances the security work of the high-rise residence, but also greatly facilitates the residents and reduces a lot of unnecessary trouble up and down the stairs.
Working mode
The door of the building is always locked at ordinary times to avoid non-building personnel entering the building without permission. The occupants of the building can freely enter and exit the building with keys. When a guest comes to visit, the guest needs to press the room number of the guest on the keyboard of the intercom host outside the building door and call the intercom extension of the guest. The owner of the visited household makes two-way or video call with the visitor through the intercom device and confirms the identity of the visitor through the visitor's voice or image. After confirming that visitors can be allowed to enter, the owner of the resident uses the unlocking button on the intercom to open the electronic lock on the entrance door of the building and the visitors can enter the building. When visitors enter the building, the door automatically locks.
Residential area property management security department through the community security intercom management host, can monitor the work of each residential building security intercom system in the community. If the entrance door of a residential building is illegally opened, security intercom host or line failure, the community security intercom management master will send alarm signals, showing the content and location of the alarm. The property management department of the community and the residents or the residents can use the system to communicate with each other. For example, the property department notifies the residents to pay various fees, the residents notify the property management department to repair the residential facilities, and the residents call the management personnel of the community or the neighbors for help in case of emergency.