Talking about the purchasing skills of building intercom system

The characteristics of residential quarters are user concentration, large capacity, unified security management, and economic income in most areas in China. Therefore, the community security system must meet the requirements of “safe, reliable, cost-effective, and centralized management”, although there are various Various kinds of security systems, but really meet the community characteristics, suitable for residential use of the product is not much. As such a product, the building intercom system has such features as having less connection, no isolation of households from short circuits, no indoor power supply, no power consumption in standby state, no dedicated video line, high stability, reliable performance, and easy maintenance.

With the continuous increase of residential housing, property management in the community becomes increasingly important. The management methods of visitor registration and watchkeeping on duty are not suitable for the fast, convenient and safe requirements of modern management. The building intercom system is equipped with anti-theft doors at each unit's mouth. The administrator of the community master control center, the intercom host at the entrance and exit of the building, the electronic control lock, the door closer and the visual intercom extension at the user's home are formed through a dedicated network. In order to realize the intercommunion between the visitor and the tenant, the tenant can remotely open the anti-theft door, and each unit ladder visitor can then call the tenant through the intercom host, and the other side can enter the building after agreeing, thereby limiting the entry of illegal persons. At the same time, if the occupants are robbed or have a sudden illness at home, the security personnel can be notified through this system to receive timely support and processing.

Buying skills:

1, cost-effective building intercom system as the last barrier to protect the safety of living, was hailed as the "guardian god" of home life. The optional building intercom system should be selected according to different residential structures, community distribution and functional requirements. Some of them are suitable for non-enclosed residential buildings and can implement call, intercom and unlock functions, and have a luminous indication function; Applicable to various residential structures from the low-rise to the high-rise; closed management of the community can use an indoor unit with security alarm function, users can install the door magnet, infrared probe, smoke alarm, gas leak alarm device and so on. In order to take into account the needs of different users and economic conditions, when the color coding camera host uses a color camera, the color of the visual system is compatible with the black and white extension. Users can use the color machine, and can also use the black and white machine, and can also use the visual function. The intercom indoor unit; In order to facilitate the project wiring, according to different community distribution, the large system bus can use star-type wiring and ring-type wiring. In order to completely solve the large-system signal attenuation, dual signal amplification of dual-phase video transmission on the same cable can use an intelligent signal booster. Closed cells can also set up a management center. The management center machine can store alarm records, and can check the type, time and building number of the alarm occupant and the number of the room at any time. The center can monitor and call the entire district and building entrance.

Therefore, the use of building intercom systems must be selected according to the characteristics of their own residential area, must not be blind. To achieve the highest performance-cost ratio, the maximum use of the system's features.

2. Ruggedness Durable and durable can be said to be the most important condition of the access control intercom system, because first of all, the function of the access control intercom system is to protect the user's life and property, if it is not even strong enough. So how about protecting others? Secondly, the access control intercom system is a necessary place for users to enter and exit, and it is used very frequently. Therefore, users can often hear complaints about the failure of the access control intercom system.

So how do you determine if a product is strong and durable?

It is recommended that users should consider the products of mature brands that are in the leading position in the world as far as possible. On the one hand, they have typical users and their quality has also undergone many tests, and they have been highly recognized in the industry.

In terms of hardware, devices from the controller to the terminal are mature and stable products. As the core of the system, the access controller needs to support the offline mode of operation. It must use flash and other non-volatile memory chips, and the power loss or impact information will not be lost. The failure of the server and terminal to identify equipment does not affect the normal operation of the system. In the case of a lot of man-made destruction, when selecting equipment, it should also pay attention to the performance of the product in preventing man-made damage, such as whether it has tamper alarms and similar functions.

3, compatibility users all know that now a large-scale residential units are not only one, may be combined with multi-storey, small high-rise, high-level residential buildings of different grades, then the need for multi-system equipment compatibility, so that according to Different levels of the community integrate different system requirements to accommodate different user needs.

Therefore, in order to facilitate future upgrades, capacity expansion, and anti-jamming considerations, it is recommended that terminal identification devices comply with international standards be selected, and that the wider and better the compatibility, the better. Some formats have some advantages in terms of locality, but they do not conform to international standards. They will cause problems for future upgrades, capacity expansion, and anti-jamming. They should adhere to the principles of practicality, stability, and compliance with standards.

4, anti-jamming design anti-jamming capability is currently a headache for the building intercom industry. Therefore, it needs to cause widespread concern for product suppliers and construction parties.

At present, the rated voltage of most building intercom door power supplies on the market is 220V, the AC peak or composite voltage is 190-250V, and the test voltage of the anti-electric strength should be 1.5kV. To meet this requirement, it can only meet the requirements of sudden changes in the circuit system, but it cannot resist the lightning overvoltage and excessive current. Therefore, building intercom doors should have lightning protection and grounding devices with good anti-static, anti-lightning, and leak-proof designs, which can avoid many problems in the later use of products.

5. The humanized design of access control intercom products is a product for the public, and the humanization of use is one of the most important features. The humanized design here mainly refers to the humanization of the user interface, including indoor units, door machines, etc. For the purchaser, it is often used by children and the elderly. Therefore, the operation mode and operation interface should be as foolproof as possible. For example: language prompts, family messages, etc. during the operation; the screen graphic interface is more abundant, not just text prompts.

As for this point, users should learn more about the products they purchase, and after they shop around, they can choose the products they like and fit.

6. Powerful software management functions With the increasingly wide range of applications for access control systems, it is required to implement linkage control functions with other systems such as attendance management, security alarm, parking lot control, elevator control, consumption management, CCTV linkage, and online patrol. Therefore, the system software should have a video interface and support extended functions.

In addition to the above points, there are some keywords like easy maintenance and anti-crash design that users should pay attention to when choosing a door intercom system. It is better to choose a mature brand product so that while ensuring product quality, , but also to ensure the perfect and powerful service system, will save a lot of trouble later.