Building intercom system into China since the ninety s, after 20 years of development, the system function has been rapid development, product structure, etc. Its development can be roughly divided into four stages: traditional non-networked: "4 + n" - bus network, digital/analog hybrid, TCP/IP model. In bus network, building intercom got rapid development, center, unified management, security alarm, information release, take messages and other technical innovation makes landing-answer industry booming; In recent years, along with the network communication, the development of multimedia technology, microelectronics technology, building intercom products break through traditional concept of intercom products, networking methods more flexible, integrates the function of more products.
Intercom on technology trends, China market is experiencing from analog to digital, from the bus to the TCP/IP change. Have learned, in the residential building intercom project, digital/analog hybrid (TCP/IP to the unit, the unit internal simulated) of network mode with its extremely high holds around 70% of the share price advantage, bus network because of its own limitations, the current account for only 20% of the share, and adopt the mode of the TCP/IP step to the home network digital intercom has occupied 10% of the total market share. At present, due to cost considerations, such as TCP/IP to the cell of the communication between network mode is the mainstream of the market, but due to the late system expands, considering the demand of function extension, the TCP/IP pure digital intercom products market demand also showed a rising trend.
With the push of social economy, people demand rising, black and white, color pendant intercom, video intercom, analog interphone, digital intercom, slowly from traditional mode to the digital development, product emerge in endlessly, the market competition is intense, let the consumer the edition, also has led to a price war industry play. To development, the more profit, some manufacturers will be on the cost, product design, however, today's consumers have towards the age of reason, at the same time in the consumption of different comparison and analysis. How to obtain the highest profit at the cheapest cost and the communication between the user's trust is enterprises confront the problem.