Talk about the uses of walkie-talkies

Traditional applications

Walkie-talkies are mainly used in public security, civil aviation, transportation, water conservancy, railways, manufacturing, construction, service and other industries for communication and command and dispatch among group members. Improve communication efficiency and improve the ability to respond quickly to emergencies. As walkie-talkies enter the civilian market, people are increasingly using walkie-talkies when traveling and shopping.

There are also some walkie-talkies used for specific occasions, such as explosion-proof walkie-talkies, waterproof walkie-talkies, police walkie-talkies, etc. Vehicle-mounted radios can also be included in the use of walkie-talkies.

Access control intercom

With the advancement of science and technology, intercoms are more and more widely used in the security industry, and this is how the access control intercom system was born. Access control intercom is to apply the intercom to the access control system. Users can make calls or video communications through the intercom. The access control intercom system mainly consists of an intercom host, intercom extension, UPS power supply, electronically controlled lock and door closer. According to the type, it can be divided into direct-press type, digital type, digital door-to-door communication, direct-press type video intercom, digital video intercom, digital door-to-door video intercom, etc.

Intercom host

The intercom host is the core control part of the building intercom system. The transmission signal of each household extension and the electric lock control signal are controlled by the host. Its circuit board is installed with vibration reduction , and are treated with moisture-proof treatment, which has strong anti-vibration and moisture-proof capabilities. It is equipped with a night lighting device and has a beautiful and generous appearance.

Intercom extension

An intercom extension is a kind of intercom that usually communicates with the host. The door-to-door building intercom system cooperates with the host to form an internal telephone system. It can complete the telephone contact of individual users in the system, which is more convenient to use. It is divided into visual extension and non-visual extension. It has electric lock control and monitoring functions and is generally installed at the door of the user's home to facilitate intercom conversations between residents and visitors.

UPS power supply

Its main function is to keep the building intercom system from losing power. Under normal circumstances, it is in a charging state. When there is a power outage, the UPS power supply is in the state of supplying power to the system. For building intercom systems, manufacturers generally do not use UPS batteries, mainly because the visual system consumes too much power, and ordinary small-capacity UPS batteries cannot guarantee the use time!

Electronically controlled lock

Its internal structure is mainly composed of electromagnetic mechanism. The user only needs to press the electric lock button on the extension to energize the electromagnetic coil, so that the electromagnetic mechanism drives the linkage to control the opening of the door. Door closer is a special automatic door closing linkage mechanism. It has a regulator that can adjust acceleration and force, making it easy and flexible to use.

Working principle

Visitors can conveniently call residents and talk to them through the host in front of the unit door downstairs. The residents can control the opening and closing of the unit door indoors. The host in the community can It can receive alarm signals from residents at any time and transmit them to the host on duty to notify community security personnel. The system not only enhances the safety and security of high-rise residences, but also greatly facilitates residents and reduces many unnecessary troubles of going up and downstairs.

Working method

The building door is always locked to prevent non-building personnel from entering the building without permission. Residents in the building can use the key to freely enter the building. Enter and exit the building. When a guest comes to visit, the guest needs to press the room number of the resident he wants to visit on the intercom host keyboard outside the building door and call the intercom extension of the resident he wants to visit. The owner of the house being interviewed conducts a two-way call or video call with the visitor through an intercom device, and confirms the visitor's identity through the visitor's voice or image. After confirming that visitors can be allowed to enter, the owner of the household uses the unlock button on the intercom extension to control the electronic door lock on the entrance door of the building to open, so that visitors can enter the building. After visitors enter the building, the door will automatically lock.

The security department of residential property management can monitor the working status of the security intercom system of each residential building in the community through the community security intercom management host. If the entrance door of a residential building is illegally opened or the security intercom host or line fails, the community security intercom management host will send out an alarm signal and display the content and location of the alarm. The system can be used to communicate with each other between the community property management department and residents or between residents. For example, the property department notifies residents to pay various fees, residents notify the property management department to repair residential facilities, and residents call the community management personnel or neighbors for help in emergencies.