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In the intelligent community, there is video surveillance that can't take care of the security of thousands of households. The security work of intelligent community is good or bad. It is nothing more than a combination of technical defense and human defense in the community. The access control system is indispensable. Missing location. 
Standards and cost issues are another difficulty in the popularity of networked access control systems. Networking is a major feature of networked access control. "However, manufacturers basically use their own application layer protocols to connect devices and software, and have not formed a unified standard in the industry." In this case, users need to concentrate their products. In your own system, you must use the vendor's proprietary protocol or SDK for development, which makes integration between systems still very difficult. If the standard can be unified, the networked access control system will surely achieve rapid development. Due to the complexity of the networked access control system and the long development cycle, the product development cost is high. The cost of the early network communication module is also high, which makes the network access control cost higher. However, the cost of a single network cable is lower than that of a twisted pair cable, and the wiring and maintenance convenience is increased. Therefore, in a large-scale project, the cost is not a disadvantage of network access control, and the number of dots is presented. The more the cost advantage, the more obvious the trend. If the cost in small systems can be further optimized, the impact of networked access control on the access control market will be deepened.
Therefore, it can be said that the door-to-door intercom is not a panacea, not an impeccable.
The advantage of access control intercom is not invulnerable
[ Huaqiang Security Network News ] The use of access control intercom in life can be said to be very large, especially in the construction of the community has given a high evaluation, so many people will feel that the access control intercom is really impeccable, advantages Impeccable, but it is not. This is not the case. The access control system of the community can be divided into two types from a wide range, one is the access control of the household, and the other is the entry and exit of the vehicle. The resident access control system can also be divided into two types, one is the intercom access control (only a simple intercom call can be made), and the other is the intercom access control (you can see the other party while talking). For the resident access control, when the resident has a visitor, the homeowner can conduct the inquiry and opening function of the visitor through the access control intercom system. If the stranger is seen in the visual access control intercom system, the door can be refused to open. The security of the community came to see.