True and false identification method of digital building intercom system

Now we are all around with digital homes, digital cities, etc. Digitalization is rewriting our lives. In the intercom system market, this trend also exists. With the discovery of technology and the further improvement of user demand, the tradition The analog intercom system can no longer meet the needs of real life, and the digital video intercom system comes into being. So what is the digital intercom system? It mainly has three major elements: image compression, voice processing, and network transmission, which enable digital video intercom to integrate with other home multimedia products. Nowadays, digital intercom systems are accelerating in both market and technology, and have gradually become an important part of the digital home.

Digital intercom

Compared with the traditional analog intercom system, the digital intercom system has the following advantages:

Simple wiring

Because the digital video intercom system uses TCP/IP to transmit signals such as sound, data and image images, a network cable can solve all problems, greatly simplify the wiring project, and make the installation and debugging of the residential intercom system change. It is simple and the construction period is also greatly shortened.

Powerful networking

The indoor video of the digital video intercom system is like a small computer. It has both a high-performance CPU and a DSP digital processing chip. The powerful data processing capability makes the networking function powerful and provides more integration for other security subsystems. More convenience.

Strong scalability

Digital video intercom system can not only realize visual intercom, but also realize multimedia information transmission, broadcasting, security alarm, smart home, IP videophone, VOD on demand, image monitoring and value-added services. At the same time, it can also play a certain role in security monitoring.

low cost

The digital video intercom system adopts the TCP/IP transmission method in the process of installation, debugging and wiring, which can reduce a small investment, shorten the construction period, save the wire and labor costs, and is easy to maintain, so the cost is Even more advantageous than traditional analog intercom systems.

As the demand for digital products in the market has grown stronger, digital video intercom has gradually become a trend. Many manufacturers also agree with the advantages of digital video intercom products, and they all want to catch up with this "golden train". Many intercom vendors have focused their attention earlier on this. Some manufacturers have already produced and sold digital video intercom products, and some manufacturers are still in the research and development stage. However, the market for digital video intercom products is currently mixed, and half-digit and fake digital products are flooding them, making digital video intercom products greatly compromised in users' minds.

So, how to distinguish the true and false of the digital visual system? It can be distinguished from the following points:

First, we must first check whether the standard TCP/IP protocol is used, and whether the transmitted video signal is encoded and compressed.

Second, look at the intermediate equipment, networking equipment is universal: At present, some use a dedicated switch, and some rename the converter to a switch, etc., these need to pay attention to distinguish. In general, real networked intermediate devices can be purchased directly from the market. If they can only be purchased from the intercom system supplier, it is certainly not a true digital product. The real digital products are standard and universal.

Third, look at the interface: When purchasing the product, we have to carefully observe the interface of the door machine, the center management machine, the indoor unit and the wall machine to see if the RJ-45 interface is used. If it is not the RJ-45 standard interface, it is definitely not a digital pair. Talking about equipment.