Digital intercom and analog intercom technology

Many people know about digital intercom and analog intercom, so what are digital intercom and analog intercom? Digital intercoms and analog intercoms have experienced many changes through the changes of the times. Whether it is digital intercom or analog intercom, there is a deeper evolution and development. As consumers, what should we know about digital intercom and analog intercom to make a better choice?

1. Interface docking comparison

Simulation: Often it is self-wired to form an independent network system. The industry lacks standards, and products from different manufacturers cannot be interconnected. At the same time, it is difficult for video intercom systems to interconnect with other weak electronic systems. Numbers: Using the TCP/IP method, you can borrow the community broadband network. Multiple weak electron systems can share the same broadband network. The cost of establishing a network is low. It uses standard interfaces to improve the practicality of the equipment and realize the unity of the community management platform. .

2. Video transmission comparison

Simulation: Simulate intercom when using video networking in the community, but when the distance exceeds 1KM, the image quality cannot be guaranteed. Digital: Digital video intercom is based on TCP/IP network protocol. Data is shared on the network. The most advanced algorithms and decoding technology are used for video compression and extraction. Even at long distances, the image quality is still clear.

3. Communication quality comparison

Analog: Analog intercom belongs to the bus system and is a half-duplex communication method. When one of the door stations calls the management center, other wall stations or sub-stations will inevitably be busy. Digital: Because it is connected to a broadband network and has a switch in the center, its communication is a full-duplex communication method, which enables multi-channel real-time data exchange. It is not only simple and fast, but also effectively avoids busy lines.

4. Installation and debugging comparison

Simulation: There are many networking equipment in the analog intercom system, such as networking switches, inter-layer isolators, signal amplifiers, etc. Failure of any equipment will increase the amount of debugging work, and such intermediate equipment can only be provided by the manufacturer. Replacement requires Lai Yu manufacturers. Digital: The digital intercom system adopts the standard TCP/IP protocol, which saves many switchers and intermediate equipment of the intercom system. It is easy to debug and configure and replace.

5. System maintenance comparison

Simulation: Traditional analog intercom systems must be set up house by house and device by device. If a fault occurs, you can only passively wait for the user to report for repair. System upgrades require professionals to replace chips on site to complete. Digital: The setting and testing of each device can be completed through the background software, and the operation of the device can be understood at any time through the management center software; for system upgrades, the terminal device can be automatically upgraded online without manual intervention. The above is some comparative analysis of digital intercom and analog intercom.