Briefly talk about the design scheme of "Intercom Subsystem" in the community

1. Video intercom function

* The visitor talks with the resident: The visitor dials the resident extension through the door phone, the resident extension rings, the resident picks up the phone or presses the embankment key to realize two-way intercom with the visitor, and the visitor is displayed on the extension screen
* The visitor talks with the administrator: the visitor can call the management center through the door phone to realize two-way intercom with the administrator and display the visitor on the screen of the management machine;
* Administrator talks to the resident: The management center informs the resident of something, and can also connect the resident extension through the management machine to realize two-way intercom with the resident;
* Visitors, residents, and administrators are talking in two ways, all of which are two-way confidential.

2. Remote unlocking function * After the resident confirms to let the visitor, press unlock to realize remote unlocking;
* The administrator can remotely open the electric locks at the door of each building through the management machine;
* Password unlock function;
* The residents can open the door of the building through the password, and realize the one-character-one-code system. And residents can change their passwords at any time, which is safe and convenient. If you forget your password, you can reset it through the management center.

3. Help and alarm function * After networking, when the residents encounter emergencies or need help from the property management department, they can press the alarm help button to ask the management center for help.

4. Monitoring function * The resident can press the indoor extension monitoring key to monitor the situation of the entrance of the building, the administrator can also monitor the situation of the entrance of each building through the management machine.

5. Induction card unlocking function * Residents can use the induction card to open the door of the building. The induction card should be used with other cards in the card system.
* Villas can use independent access control or networked access control.

5.1.2 Equipment selection design
In view of the actual situation of the construction of the emerald mountain lake intelligent system, Polystar recommends that the intercom system adopted by the villa should be slightly high-end and small high-rise to reflect the noble characteristics of the villa and reduce investment costs.
It is suggested that:

1. The first floor of the villa is equipped with a luxurious indoor extension with 8 zones in the color zone, the second floor is an ordinary intercom extension (non-visual), and the third floor (multi-storey villa) is an ordinary intercom extension (non-visual). System, the indoor extension does not need to have the zone function;

2. Small high-rise buildings use black-and-white belts, 8 defense zones, and wall-mounted indoor extensions.

At the same time, Polystar provides two options:

1. Each floor of the villa adopts color indoor extension or the second / third floor uses black and white indoor extension;

2. Villas and small high-rise buildings use indoor extensions without defense zones, and build professional home security terminals (see: 6 Home Intelligentization and Home Security Subsystem).
While building a video intercom system, a home intelligent control terminal (optional) should also be built in the villa, which is very effective and also reflects the grade of the community. For details, see: 6 Family Intelligence and Family Security Subsystem.

5.1.3 System selection and equipment overview
After many comparisons and choices, this intercom system recommends the use of Shenzhen Huiruitong Industrial Co., Ltd. (referred to as "Huiruitong") visual building intercom system.

5.1.6 Introduction of advantages of WRT system
Huiruitong intelligent building intercom system products have unique appearance, advanced product functions and flexible system configuration. For this project, the bidder recommended Huiruitong's R2 series of building intercom system, which can meet the application content that developers and integrators care about, and represents the development trend of the industry. In particular, Huiruitong ’s doorway host can have information release function and Chinese operation prompt function. The indoor extension can realize the information release function when the cost of the indoor extension is not too much. , The function is very practical. (If your community builds a smart home terminal in the future, the information release function can be cancelled)

5.1.6.1 Contents and advantages of WRT-R2 intelligent building intercom system
The intelligent technology represented by the R2 system: In addition to the realization of all the functions of ordinary intercom, it also fully applies intelligent identification technology, intelligent control technology and automatic alarm control technology, and is managed and controlled through a unified computer management platform. Its integrated systems are:

1. Building video intercom system
The building intercom system has evolved from the first-generation common intercom system to the current networked control system, which has greatly improved both in function and appearance. Although the requirements for intelligent communities in China vary, building intercom, as the basic configuration for realizing community intelligence, has always been the first choice for community intelligence. Its application plays a key role in the security management of the community.

With the popularity of domestic communities and the development trend of developers, in many large and medium-sized cities, the area of ​​intelligent communities is also increasing. As the intercom system of many intelligent system network transmission control carriers, its networking mode and application technology have always been a bottleneck for the realization of large-scale community intelligence. The company's upcoming TCP / IP protocol networking method and the HFC (optical fiber coaxial hybrid access) access technology being developed will provide reliable solutions for the intelligent networking of the community. The company's existing transmission distance is 2.5km.

In terms of application, the overall solution of WRT-R2 uses front-end integration technology, so the WRT-R2 system is particularly simple in wiring. The specific functions and practical applications of the system are as follows:

1) The stand-alone version is compatible with the online version, and the system upgrade is very easy.
2) The main network is expanded by 4 channels, and there are dual channels in the building to ensure the smooth flow of the network and avoid the multi-party call network being blocked or suddenly dropped. This function is a leading technology in domestic products.
3) The system has automatic detection and system fault automatic alarm functions, pure software control, easy operation, and clear results: a) automatic detection can automatically detect the location and cause of the fault, which is convenient for construction and installation and debugging of the project; b) automatic fault alarm is convenient The first time to troubleshoot, the technology is in a leading position among peers.
4) Single channel and multi-channel are compatible in the system, the priority order of the channels can be set arbitrarily (easy to extend the service life)
5) The property management company can publish public information on the door phone, while personal information is released on the indoor machine through the center. The property management company makes full use of the community intelligent management system to establish a good communication interface for the property management and the owner. The specific contents are as follows:
* Using the LCD or CRT display of the indoor unit. In addition to anti-passenger and surveillance functions, it also has information release function.
* Information release is divided into the following modules:
Real estate mortgage information through the monthly mortgage information issued by the management center;
Information release, showing public information of the community, such as holding events, stopping water, stopping gas, etc .;
The payment reminder reminds the residents to pay the fees on time by: in the case of arrears, the resident will have a reminder every day or the next day (the specific interval can be set by the property management company), until the resident pays the fee;
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6) All Chinese operation tips;
7) VTO has calendar and clock display.
8) The video intercom extension is equipped with a visitor image recording function. (Need to expand)
9) Strong compatibility of intelligent recognition, such as: IC, ID, fingerprint, iris recognition can be realized in one system.
10) Three-party conversation, that is, management center, host, and extension.
11) The management office monitors and monitors the host, sub-host, and wall machine (optional)
12) For extensions, video and audio are realized point-to-point transmission to ensure high fidelity of images and audio.
13) The networking part can be directly connected to Ethernet, which is especially suitable for the development of the digital community (this function requires the cooperation of network investors and network operators.)
14) The alarm automatically calls the homeowner to set the telephone function in advance, and the automatic call is controlled by the center's pure software to reduce the household equipment investment on each extension.

2. Access control system
A few years ago, access control was still an unfamiliar concept for everyone, but with the growth of the domestic economy and the improvement of national awareness of prevention, access control management entered a broad space. The integration of access control and intercom system not only effectively controls illegal people from entering the community, but also creates a very convenient freedom of entry and exit for the owners.
At present, there are basically three ways for access control: password control technology, effective card control technology and biometric control technology. This time the use of password + effective card control method to achieve.
1) For the password control technology, the company's products have been introduced and applied in the early stage (1996). Such as WRT-998, 168, 638 systems, etc.
2) Effective card control technology, the company's WRT-988 system is the application of such technology. With the increase in the range of community heads in the community, such as parking lots and clubs, and taking into account various types of property charges, so now the smart community basically requires the realization of the card, so-called "one card". Huiruitong realized the card application under the platform in WRT WRTCMVersion 3.0. Due to the wide applicability and security of the "One Card" system, it is very convenient for popularization and application, so many domestic communities are now using the company's One Card products reliably.
3) It is important to explain here that the company is the first to introduce the third access control technology in its peers: biometric technology, which is to compare the collected fingerprint with the previously archived fingerprint. If the fingerprint matches and the current time is Within the set access time, it is considered legal and the door will automatically open. Through the company's latest access control door machine WRTR-2139A, your fingerprint is your access document. It is easy to use for all residents.

Because the biometric control access control system has certain requirements on the user group, it is mainly used in some high-end communities and some special places.

3. Home alarm control system
The company's home alarm control system is integrated in the intelligent building intercom system and is the first high-quality product to pass the inspection of the Ministry of Public Security. The WRT-R22B9A and other intercom extensions in the WRT-1900, 1700, MX, SX, and R2 series include alarm controller functions.

Through the software system of the management center, alarm signals can be received and recorded in real time, and all alarm data can be stored and printed.

5.1.6.2 WRT product features
1. Adopt multi-channel technology, when the residents talk with the VTO, it will not affect other residents' call centers.
2. Bus system, star decoding, with self-protection function, the system is extremely reliable and easy to maintain.
3. The extension is an independent protection rather than a protection for each layer. Short circuit or fault of the line only affects the extension and does not have any impact on other users of the system.
4. The video transmission is hierarchical with signal amplification (non-ordinary tap), to ensure that each user in the system is balanced, clear and stable.
5. The key parts of the product are imported from abroad, and the quality is guaranteed.
6. The door machine is a new alloy die-casting shell, ergonomic design, generous style and luxury, and the technology is ahead of domestic and foreign products.
7. The resident extensions are in an integrated European style (5 national patents) with beautiful styles. The extension comes with an alarm controller, which is reliable and easy to operate.
8. The management center accepts the alarm and records, and the property security can handle the police situation as soon as possible. The guards on duty have records on duty. Prevent slacking.
9. Unique VTO keyboard menu setting function, you can freely set the house number, building number, household password number, etc.
10. Reliable use of more than 100 large buildings, good user reputation, and comprehensive services are the most powerful and direct guarantee for the use of WRT products.
11. The main performance indicators of the security intercom system comply with "GB12663-90 General Technical Conditions for Anti-theft Alarm Controller" and "GA / T72-94 General Technical Conditions for Building Intercom Electric Control Anti-theft Doors".
12. Without increasing the number of lines, the information release function can be added according to the property management requirements.
13. Advanced property management culture control platform to help property companies better manage their properties.

5.1.7 System description
5.1.7.1 System overview
According to the multi-level and diversified characteristics of China's residential quarters and high-rise buildings and the requirements of urban security technology and defense work, the company has designed the latest development of advanced computer technology, video technology, digital communication technology and information network technology. Intelligent building intercom security management system. The system takes the management host as the core and the residential tower intercom as the main body. Through the targeted configuration of intercom hosts and extensions with different functions, it can realize various functions such as building intercom, visual monitoring, mutual calling, and remote unlocking , The system can also be connected to a computer for unified management of security information, in order to provide a comprehensive and efficient service for the modernization and scientific property management and security of the entire community, and to provide a safe, convenient and reliable home for the community owners Guarantee, create a comfortable, elegant, convenient and safe environment for the entire community, turn the cold property management into humanized management, and let the community management enter a broad space.