Building intercom is the "doorbell" that everyone often says. In the course of more than 20 years of development, building intercom has gradually entered the direction of networked smart home , and the structure of intercom products has been trended to a higher level. How should consumers understand digital intercom and analog intercom to better choose?
As a kind of equipment that plays a role in building buildings, building intercom is a "doorbell" that people often say. In the course of more than 20 years of development, building intercom has gradually entered the direction of networked smart home, and the structure of intercom products has been trended to a higher level. How should consumers understand digital intercom and analog intercom to better choose?
First, the comparison of the advantages and disadvantages of analog intercom and digital intercom
1. Interface docking comparison
Simulation: It is often self-routed into an independent network system. The industry lacks standards, products from different manufacturers cannot be interconnected, and video intercom systems are difficult to interconnect with other weak electronic systems.
Digital: TCP/IP can be used to borrow a broadband network. Multiple weak electronic systems can share the same broadband network. The cost of building a network is low. Standard interfaces are used to improve the practicability of the equipment and achieve the unity of the management platform of the community. .
2. Video transmission comparison
Simulation: Analog intercom is used in cell video networking, 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 in the network. The most advanced algorithms and decoding techniques are used for video compression and extraction. Even at a long distance, the image quality is still clear.
3. Communication quality comparison
Simulation: Analog intercom is a bus system, which is a half-duplex communication method. When one of the door machines calls the management center, other wall machines or sub-management cannot be cleared.
Digital: Because it is connected to a broadband network, the center has a switch, and its communication is a full-duplex communication mode, so that data can be exchanged in real time in multiple channels, which is not only simple and fast, but also effectively avoids busy.
4. Installation and commissioning comparison
Simulation: There are many networked devices in the analog intercom system, such as network switchers, interlayer isolators, signal amplifiers, etc., any one equipment will increase the amount of debugging work, and such intermediate equipment can only be provided by the manufacturer. Confused to the manufacturer.
Digital: The digital intercom system adopts the standard TCP/IP protocol, which saves a lot of switchers and intermediate devices of the intercom system, and is easy to debug and easy to replace.
5. System maintenance comparison
Simulation: The traditional analog intercom system must be set up on a device-by-house basis. If a fault occurs, it can only be passively waiting for the user to repair it. The system upgrade requires a professional to replace the chip on site.
Number: The setting and testing of each device can be completed through the background software. The management center software can be used to know the running status of the device at any time. For the system upgrade, the terminal device can be automatically upgraded online without manual intervention.
Electroplating Switching Power Supply
Test Power Supply,Electroplating Test Power Supply,Copper Plating Test Power Supply ,Precious Metal Plating Power Supply
Shaoxing Chengtian Electronic Co., Ltd. , https://www.ctnelectronicpower.com