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Digital-analog fusion building video intercom system solution

November 16, 2022
I. Overview
The traditional Analog Intercom System has many deficiencies in the networking part, and in the part of the building, its audio and video quality is still recognized by most users. The design and development of the digital-analog fusion system is based on these advantages and disadvantages of the Analog System and a targeted development system. The building simulation technology is still used in Loudong, and the networking part adopts the increasingly mature TCP/IP networking technology.
The main features of the digital-analog fusion system lie in the following aspects:
1. The traditional analog signal is used in the building's building and in the entrance line. However, the network cable is used as the carrier for transmission. The wiring is convenient. Since the distance in the building is short, the audio and video quality of this part can be obtained. It is a good guarantee, and this part of the technology is relatively mature, and it is easy to form a stable system.
2. The cell networking part adopts TCP/IP digital transmission, which solves the problem that the image and sound caused by the analog system transmission distance are far from being easily interfered with. At the same time, the number of audio and video channels is no longer limited by the analog bus, and it can be ensured that the cell networking part is not Again, due to lack of capacity, there is a busy situation. After the adoption of TCP/IP technology, the functions of information distribution, image storage, and photo message waiting for the analog system can be easily implemented on the system, and the functions of some digital building intercom systems can also be extended. , Such as: advertising player, smart home control, elevator linkage control and so on.
3, the performance of the simulation system's low-cost advantages, at the same time in the networking and functional part has also obtained the advantages of digital systems, performance has been greatly enhanced, high cost performance.
4. The cost is similar to the analog system. The audio and video quality can be completely consistent with the digital system. In some large-scale communities, the cost will be more advantageous than the traditional analog system, and the function will be much stronger than the analog system. Consistent with the digital system.
5. Due to the adoption of mature TCP/IP switching technology, the star structure and the use of optical fiber can effectively avoid the damage caused by lightning strikes. The networking part is more stable and reliable, and the maintainability is greatly enhanced.
6. It is easy to solve the problem of setting up the multi-level management center of a large-scale community and selecting the location of the management center.
Second, system architecture and architecture features
2.1 System Architecture Diagram


2.2 System Features
1. System Positioning: The cost-effective optimization solution for mid- to high-end residential real estate provides an effective balance between system performance, scalability, and price and cost.
2. System Architecture: The backbone network adopts the standard Ethernet architecture. The center-to-door system is an all-digital system equipment. The overall function is powerful and the equipment is luxurious and atmospheric.
3. Cost control: The interior of the unit is connected with five types of wires. The use of a simulated indoor unit results in low overall cost.
4. Customized equipment: Specialized digital-analogue fusion equipment makes the simulation system network more simple, more reliable, and more convenient for expansion.
5. Hybrid networking: Supports the hybrid networking of IP intercom systems and digital-analog fusion systems to accommodate the differentiated positioning requirements of different cells in the cell.
6. Function expansion: Through the digital-analogue fusion door machine, it can provide most of the functions of the digital system for the simulation indoor unit, so as to enhance the use value of the equipment.
7, installation and maintenance: the system all network cable connection, standard specifications, easy installation and maintenance.
8. System upgrade: Since the unit uses a standard five-wire connection internally, the system can be easily upgraded to an IP network Intercom System.
Third, system function description
3.1 Guest Call Intercom
The visitor enters the room number of the unit at the entrance of the unit, and the household extension emits a pleasant chord sound and opens the display screen. The resident can use the indoor unit to make a video call with the visitor to facilitate the user's identification of the visitor.
3.2 Four-way calling function
Calls can be made between the management center, the unit door entrance host, the fence machine, and the user indoor extension.
3.3 Remote unlock function
After the resident confirms the visitor, he can press the unlock key of the indoor extension to open the unit electric control door. In this way, strict and effective access control can be implemented for the visitors of the community to further ensure the safety of residents in the community.
3.4 Active surveillance
Households can monitor the video screen of the door door machine, the unit door machine, and the area wall presser according to the monitoring button of the indoor extension to understand the situation at each entrance.
3.5 Password unlocking
The resident can automatically open the unit door according to the set password. The operation is simple and convenient.
3.6 Management Center unlock
Residents can call the management center at the unit's entrance to unlock the management center, which is convenient and safe.
3.7 Security alarm function
In-house indoor extensions can be connected to security probes such as: infrared, gas, emergency assistance, etc. When the household at home invades, gas leaks or emergencies, the indoor extension can send an alarm signal to the management center to facilitate the management office to make the police Handle in a timely manner to protect the safety of tenants.
3.8 Elevator Linkage
When a visitor calls through the door machine and the resident confirms unlocking, the door machine sends a command to link the elevator to the floor of the visitor and bring it to the household. Before you go out, press the call button on the indoor unit, the elevator automatically arrives at the floor, and open the door to meet the user.
3.9 Card unlock function
The digital-analog integration Video Intercom System integrates the traditional intercom system and Access Control System, users can use the IC/ID card to open the door.
3.10 Information Publishing Function
Through the background management center, text or picture information can be sent to any building or designated user in the community.
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