Analysis of Building Visual Intercom System Structure

Building intercom, also known as video intercom, visual building intercom system refers to installation in residential quarters, unit buildings, office buildings and other buildings or buildings, using images and sounds to identify visitors, control the door locks and encounter emergency situations. Sending help and assistance signals to the management center, the management center can also integrate device information to the residents.
There are mainly door machine (resident door machine), indoor unit, administrator machine and other components.
a. Indoor extension
Indoor extensions mainly include two major types of intercom and video intercom products. The basic functions are intercom (video intercom) and unlock. With the continuous enrichment of products, many products also have the functions of monitoring, security alarms and disarming, household access, information reception, remote telephone alarm, message retrieval, home appliance control and so on. The video intercom extension has two types of color LCD and black and white CRT monitors. As of 2014, many technologies were applied to indoor extensions, such as wireless reception technology and video character overlay technology. The wireless connection technology is used for the indoor unit to receive the signal of the alarm probe, and it is suitable for the difficult wiring. However, there are major loopholes in the wireless alarm mode, as the continuous transmission of the emission source of the frequency will cause the host to fail to receive the alarm signal sent by the control head. Video character overlay technology is used to receive short messages issued by the management center.
There are two types of indoor units in principle design. One is an indoor extension with a code. The splitter can be simpler, but the indoor extension costs a little higher; the other type of encoding is done by a doorway host or splitter, indoor Extensions are very simple. The LCD screens of color indoor extensions have not been domesticated in 2014 and the cost is relatively high. This is a bottleneck restricting the application of intercom systems in color video buildings.
The appearance of the intercom extension is similar to the bread telephone and tends to be diversified. Visual extensions tend to be ultra-thin handsfree wall mounts, but the most popular ones are wall-mounted black-and-white visual extensions. Indoor extensions occupy a relatively large cost in the building intercom system. From the development point of view, color extensions with security alarms and information releases are used in high-end real estate applications, while mid-range mobile phones are mostly black and white video intercom extensions. Speak extension.
b. Door host
As of 2014, whether it is the use of visual indoor competition or intercom indoor extensions, most users require the use of visual doorway host for users to choose. The host computer at the entrance is the key equipment of the building intercom system. Therefore, the appearance, function and stability are the main points of the manufacturers' competition. The main materials of the doorway are aluminum alloy extrusion profiles, die-casting or stainless steel shell stamping and forming. In terms of effect, aluminum alloy extrusion profiles have advantages. There are two kinds of liquid crystal display and digital control at the entrance of the host computer. The liquid crystal display cost is higher, but the display content is more abundant, especially the indispensable component of receiving the short message. In addition to the basic functions of calling the resident, the host computer at the door must also have the function of the call management center. The infrared auxiliary light source and the nighttime auxiliary keyboard backlight are the functions that the entrance host must have. The ID card technology and the reduction of the read head cost make the proximity card access control technology be applied to the host computer to implement the card unlocking function. In addition, for the convenience of use, many products also provide ringback tone prompts, key tone prompts, call prompts, and various voice prompts. Other functions make the performance of the door host gradually perfect.
C. Management Center
The management center machine generally has the basic functions of calling and alarm receiving, and is the basic equipment of the community networking system. The use of a computer as a management center greatly expands the function of the building intercom system. Many manufacturers spare no effort to make their integration in management software such as three-meter, patrol and other systems. With the system hardware, the management center connected by a computer can realize information release, community information inquiry, property service, call and alarm record query function, and set up disarm record check function [1].
Door machine has: door machine NP-B07, vertical door machine NP-B07A.
The indoor units include: embedded indoor unit NP-H07, wall-mounted indoor unit NP-H10A/NP-H07A, indoor wireless extension NP-S.
The administrator's machine includes: administrator machine NP-J10A, administrator machine NP-J07A, and management software NP-R.
Household door machine has: household fingerprint door machine NP-DA, household password door machine NP-DB.
Other related equipments include: backup power supply NP-P123/NP-P126, security module NP-MS8, expansion module NP-ME3, NP-ME extension box, proximity card issuer NP-W, inductive IC card NP-IC, super Category 5 flat twisted pair cable RJ45-L, network switch.

Exterior wall profile

Exterior Wall Tiles is mainly used for the decoration and protection of the building's exterior wall. Exterior wall tiles not only decorate the entire building, but also because of its acid and alkali resistance, physical and chemical properties of stability, to protect the wall has an important role, but also cold insulation. External walls can be stock sales, but also according to customer specifications and color of the special requirements of custom production.

 

 

How to choose exterior wall tiles

1, according to the level of External Wall Tile logo selection, the tile is divided into five levels, there are superior products, first-class products, second-class products, third-class products and other goods of the difference, due to larger spreads, to be carefully compared. In addition, in the purchase, but also pay attention to the logo on the tiles and packaging specifications, color number is consistent, product certification, trademark and quality control standard is clear.

2, according to the size of the outer wall of choice, standard size, unfavorable to the construction, better reflect the decorative effect. Good deviation of the specifications, paving the tidy uniform, brick straight, decorative effect is good. Dimensional error is greater than 0.5 mm, flatness greater than 0.1 mm of product, unfair to increase the difficulty of construction, while the decoration effect is poor. Whether the size meets the standard can be judged by the target. The bricks placed on a flat surface to see whether the four sides of the flat surface exactly match, at the same time, to see whether the four corners of the tile are right angles. Good newspaper no bump, bulging, Qiaojiao and other defects, the side of the error does not exceed 0.2-0.3 mm, the thickness of the error does not exceed 0.1 mm.

3, according to the exterior wall pattern selection, good ceramic tile pattern, pattern color clear and consistent, exquisite craftsmanship, no obvious leak color, dislocation, broken or inconsistent depth.

4, a careful observation of whether the color difference of the external wall tiles, color tiles, is directly related to the decoration effect. Not a batch of products, or the same batch may have color, therefore, in the purchase process, for each packaged product sampling comparison, the tiles placed in the same species and the same type of brick, observe its The degree of color difference, a good product color is small, the basic color tone between products, bright color uniform, brilliant, and poor product color larger, the product shades of color.

Exterior wall tiles types(Marble Effect Tiles,Slate Effect Tiles,stong effect tiles, Wood Effect Tiles ,Brick Effect Tiles)

1, according to product material classification:

Glazed wall tiles, wall tiles and other whole body.

2, according to molding classification:

Extrusion molding (pottery curtain wall, split brick, etc.) and dry-pressure molding (small external walls, etc.).

3, according to the mode of production:

Pad plate kiln wall brick, straight roller kiln wall brick, tunnel kiln wall brick.

4, according to the packing method

Stickers outside the wall, such as external wall tiles.

5, according to the surface texture classification:

Bright, matte, matte and so on.

6, according to the surface classification:

Plane, sandstone surface tiles, water ripples, split brick surface tiles and so on.

7, according to the construction method classification:

Paving the outer wall, dry hanging pottery wall panels and so on.

 

External wall size specifications

Exterior wall tiles are available in 25 * 25mm, 23 * 48mm, 45 * 45mm, 45 * 95mm, 45 * 145mm, 95 * 95mm, 100 * 100mm, 45 * 195mm, 100 * 200mm, 50 * 200mm, 60 * 240mm, 200 * 400mm and so on.

 

Advantages and disadvantages of exterior wall

Advantages of external wall:

1, the outer wall tile surface no matter whether it is shiny, and flat or rough, will have a different texture, its appearance is very decorative.

2, the external wall of the rugged, with good durability and texture, colorful and rich decorative effect, and has easy cleaning, fire, water, abrasion, corrosion resistance and low maintenance costs.

3, durability in the Outer Wall Tiles , which includes durable, dirt-resistant, scrub-resistant and so convenient, and its long service life.

Disadvantages of the external wall:

1, the outer wall tiles for the first time higher cost, higher paste requirements, construction difficult, but not easy to cause construction technology off the wounding, but also must be waterproof material to solve waterproofing problems.

2, from the environmental point of view, the outer wall tiles in the cleaning process with acid will cause pollution to the atmosphere.



Exterior Wall Tiles

Exterior Wall Tiles,Stone Effect Porcelain Tiles,Slate Effect Tiles,Stone Effect Porcelain Tiles

UMS New Materials Industry Co.,LTD , https://www.ums-factory.com