Building intercom is a kind of equipment that acts as a call in a building. It is also called a visual doorbell. Strictly speaking, building intercom is a set of visitor management system. It is a set of humanization including software, hardware and after-sales service. Manage the guest operating system. Digital building intercom, also known as smart terminal, is a digital walkie-talkie designed with digital technology. The digital walkie-talkie digitizes the voice signal and transmits it in digital code. That is to say, all the modulations on the transmission frequency of the walkie-talkie are digital.
As early as a few years ago, the digital video intercom system's real estate has quietly appeared in the country. For example, in 2003, Anjubao launched a smart terminal; in 2002, Zhenwei completed the NL hybrid multi-level visual non-visual networking system. It includes Juyi E-3000 smart home system, C-5 intelligent community system, etc. It is understood that Guanlin developed the first generation of digital intercom products in 2004, and subsequently developed second and third generation products, currently Four generations of products are already under development; in 2004, Xingtian also launched a digital intercom system.
At present, the digital intercom application now accounts for 10% to 20% of the entire industry. It is generally positioned in high-end real estate such as villas, luxury houses and high-end residential areas. However, with the demand of the consumer market, the purchase volume of digital walkie-talkies is increasing every year. Out of the industrialization trend, in addition to community applications, the development of this trend in the intercom industry can be clearly seen in many security exhibitions. For example, in the 2009 Shenzhen Expo, we can see that many manufacturers have smart terminal products, which also shows that the digital intercom and digital home industry have gradually entered a mature stage.
The formation of digital walkie-talkie industrialization is the inevitable trend of intelligent terminals becoming industrialized. Wang Weibing, deputy general manager of Xingtianxia Technology, said in an interview with Qianjiawang Security Network: "In recent years, with the development of network communication, multimedia technology and microelectronic technology, it has not only solved the technical problems, but also solved the cost. The difficulty makes the digital intercom industrialization possible. The living standards of people are not improved, and the demand is also improved. In addition to the basic intercom unlocking function, the intercom system needs to integrate SMS, announcement, photo/message, Electronic photo albums, security alarms, access control, smart home, community shopping, information homes, etc., and other value-added services, only the powerful extension of digital intercom to meet these needs. Digital intercom also solves the analog intercom long-distance transmission signal attenuation The number of households is limited, the number of households cannot be called, and the number of calls is busy. I think the digital intercom opportunities will be developed in the direction of smart terminals. In the future, various intelligent systems in the home will be included, and eventually become a popular consumer product. Therefore, the formation of industrialization is inevitable."
The feasibility of technology and market demand are important factors to promote the development of digital intercom. In addition, the digital terminal adopts integrated wiring, the route is relatively simple, and the grade of real estate is upgraded. Anjubao's pre-sales chief engineer Shi Zhi believes that more and more developers are choosing digital terminals. One of the important reasons is that the wiring is simple, developers create digital communities, and many smart home functions can be done first, leaving users to expand as needed. So the overall investment will not be too high.
Standardization and unification is the key to the digital intercom industrialization. The digital intercom is the trend of the development of the entire building intercom industry. Whether to standardize is a key. Standardization of intercom has always been the focus of industry attention, and the development of digital intercom standards is not something that can be done overnight. In 2008, the visual intercom industry alliance summit forum was established in the intercom industry. At that time, two major resolutions were formed at the meeting, and there were two discussion topics. First, the direction of the visual intercom can be used to see which technology will be developed in the future. The other topic is whether the video intercom can achieve standardization and unification. The standardization means that the A host can use the B extension. . In this regard, Anjubao pre-sales chief engineer Shi Zhi said: "simulation to digital is inevitable, visual intercom must be digital. Because there is an interest relationship between enterprises, so standardization is not easy in one step, you need a transition, this transition can The wiring method is first implemented. Everyone is networked, digitized, and digitally wired. The wiring may be unified, but it is a long process to make progress and standardization."
There are also many people in the industry who believe that before the formation of the national standard, it is necessary to form an industrial technology alliance, establish an alliance standard, and then raise the alliance standard to a national standard and a world standard. At present, the industrial technology alliance has long been very mature abroad. For example, the Bly-rayDVD technology alliance consisting of Sony, Panasonic, Pioneer and other companies has finally turned the alliance's standards into the world standard through cooperation.
