The application of artificial intelligence technology is an important trend in the development of security industry at present，Many domestic building talkback manufacturers have begun to integrate artificial intelligence into the building talkback system，On the basis of the original access control intercom, new face recognition, fingerprint recognition, voice recognition and other biometric technology applications，It greatly improves the user experience of the product，The product is more convenient, comfortable and safe in actual use。

With the continuous development of community intelligence, the demand for digitization is more and more vigorous。However, people's current understanding of the concept of digital visual intercom is still not thorough enough, not enough to understand the product, in the purchase of products to bring great trouble。In this paper, through sorting out the relevant information, put forward digital video intercom purchase suggestions, I hope readers can refer to when buying products。 For the digital visual intercom system, there are the following suggestions: 1, the import brand is not necessarily better than the domestic brand. The scale of our residential community is hundreds of households, the large is thousands of households, and mainly apartment, which is unimaginable in the relatively small population density of Western countries, because

The community management center realizes the unified access and centralized management of the information communication network in the community management center, which is the total exchange, distribution and management center of the whole community information network。The telecommunication service exchange center of the whole community is set up in the telecommunication service section, which is connected with the remote module of each block through optical fiber, and unified access to the urban telecommunication public network。A general front end is set up in the cable TV part to carry out unified processing such as urban cable TV signal access, satellite signal reception, and broadcast of self-run programs. At the same time, signals are sent to each block through optical fiber。It is the core of the whole community information network to set up the central computer room in the broadband information network

So far, the building video intercom products have been from a simple call, unlocking and other functions to anti-theft alarm, information release and other functions of the leap, from the previous black and white machine visual intercom development into the color machine visual intercom, it can be said that the development of products more and more mature。伴随着人民生活水平的不断提高，住户对小区的安防管理和物业管理的要求也就越来越高了！因此，楼宇可视对讲产品仅仅提供以上功能已经不能满足智能化小区继续发展的需要。Through market research, it is found that today's people's main demand for video intercom products has the following aspects: