Integrated security management integrates perimeter network alarm systems, patrol management subsystems, closed-circuit television monitoring subsystems, home security alarm subsystems, vehicle management subsystems, and public broadcasting subsystems in buildings and communities into a unified network. Integrated Integrated Security Management Platform (SMS). Through the centralized and distributed security and anti-theft alarm monitoring and management center in the building and community (including the remote alarm monitoring and management center), the implementation of the alarm information monitoring, alarm confirmation, operation control, alarm information recording and query.
The "Standard" emphasizes that integrated security management (including video intercom systems) must integrate subsystems, and standardization and openness are the key. In the broad direction, IP protocols will be the key standards for the integration of various subsystems. Easily integrated approach.
The existing intercom products in the market are difficult to talk about in terms of appearance and application, compared with consumer electronics such as mobile phones, color TVs, and game consoles. As a consumer electronics product for the home, video intercom products must take the road of fashion, realize the appearance of novelty and unique, rich and colorful applications, the industry can be healthy and prosperous. In summary, the development of video intercom products will be developed in terms of security, stability, practicality, standards, openness, fashion, etc. Only products meeting the requirements can lead the development trend of video intercom products.
Visual intercom alarm monitoring industry demand capacity and development trend
From the perspective of the demand market, the technical level products of the bus structure have entered the period of flat demand, but the overall market demand continues to heat up. The demand for building intercom products is always closely related to the development of the real estate industry. In recent years, more than 90% of new commercial buildings in big cities have been designed with this system. From the perspective of development trends, the building intercom system is a must-have system for new residential communities. In addition, some old buildings, residential units, etc. also need to be reconfigured to configure the system, and most of the county's new level of real estate has not been involved in this system. This shows that there are still many gaps in the market that need to be opened up.
The trend of networkization is the development of some products' full-service IP data service networks: based on the existing video intercom systems, the existing broadband network data transmission platforms or separate cell Ethernet networks are built to complete digital transmission of voice and video. Means to implement information storage, forwarding, and sharing as the application goals. Through visual terminals, each user is assigned a video call number based on an IP address to provide users with video calls over the Internet, VOIP, video surveillance, and intra-cell/ In-building intercom, community public information release, video on demand, visual distance education, IPTV and other personalized multimedia services, and can achieve interconnection with the "3G" network. The intelligent trend is to integrate a complete set of home intelligence functions in the system (including video intercom, closed-circuit monitoring system, parking management system, three-table copying system, background music system, electronic patrol system, access control card system, property Management system, broadband network and access system, etc. The smart home trend is simply the use of ARM embedded technology to access the Internet and telephone signals, convert it into control signals, communicate via home internal data bus, wireless communication, power line carrier, etc. The home appliance control system realizes interconnection.
As far as market products are concerned, the product development speeds of these two different technology routes are very rapid. The products of smart home products can be regarded as the integration of the former proprietary areas of smart home and the existing visual intercom fields. mature. This position includes a number of well-known foreign brands, and some domestic well-known brands such as Dean, Hui Ruitong, Anjubao, Zhenwei, Lilin, and other visual intercom industries; IP network technology The bottleneck is relatively high, and now is technically mature and has introduced products such as Guangzhou Anjubao, Shenzhen Xintianxia, ​​and Fujian Guanlin. According to the maturity of technology, IP networked video intercom products have already achieved the digital acquisition, transmission and compression process of audio and video signals. The wiring can also be done directly with a RJ45 network cable and a power line.
Video intercom alarm monitoring industry competition
The construction of smart communities has also led to the rapid development of video intercom systems. The business model purchased by the Group has spawned a large number of enterprises engaged in the development and integration of video intercom products, including their own development and production, as well as OEM. As the technical threshold is not high, there are currently hundreds of video intercom brands in the country, of which about 30 have annual sales of more than 5 million, but only one or two of the billions of sales.
According to Han Ding's consultation and research, the total market for video intercom products in mainland China in 2007 was about 6 billion, with an annual growth rate of 15%-25%. , formed a start-up industry.
Currently, in China's domestic market, black-and-white video intercom systems still account for more than 70% of the total market. Color-video intercom products only entered the market in the last two years, and developed quickly in developed cities such as the southeast coast, but the market share Still not reached 30%.
Video intercom product manufacturers are mainly concentrated in the Pearl River Delta, the Yangtze River Delta and Zhejiang, Fujian and other regions, except for a few brands, most of the products are limited to the regional market, the factory production scale is generally small. The mainstream of the market is still domestic brands. Foreign brands entering Korea mainly include Korea's KOCOM, COMMAX, Spain's FERMAX, and France's Legrand. These products have certain advantages in appearance and quality, but they occupy the market due to high prices. The market share is not big.
Spherical Roller Bearings are most suitable option for applications that need shock resistant components yet this is not the only quality these Bearings have. These Bearings can handle heavy loads because of their rings` alignment. Due to the curved outer ring, Spherical Bearings come with self aligning capabilities that make it possible to absorb shocks and also enable the apparatus to carry high axial and radial load even in harsh environment with lot of vibration. Even with this rugged working environment, Roller Bearings tend to have high precision.
DESIGN
Spherical Bearings have two rows of rollers that are separated by a cage or rib that could be sealed or unsealed depending on the specific model and application, external raceway and dual raceways in inner ring to support rotating shaft. Amazingly the quality and alignment of raceways, cages and rings define the overall performance and quality of the product. Asymmetrical rollers increase performance and precision while symmetrical rollers offer better load distribution, lesser vibration that ultimately leads to durability.
MATERIAL
These Bearings are manufactured with several kind of material based on the application and working environment. Chrome steel is one of the most popular materials used in production of these Bearings because of its durability yet sheet steel, polyamide and brass are also used for some applications. One of the most important parts of Spherical Bearings is the cage that holds bearings at their place. That cage is usually manufactured with pressed steel or brass because both of these materials offer strength as well as temperature resistance.
These Bearings tend to have seals in order to prevent contaminants like dirt, liquid, debris as well as harsh temperature. This type of these bearing doesn`t even need lubrication if they do not exceed 50% of their maximum allowed RPM.
APPLICATIONS
Spherical Bearings are essential part of heavy machines like gearboxes, turbines, mechanical fans, constructions equipment, mining equipment and drilling equipment. Roller Bearings are available in multiple standard sizes and dimension yet they are also made with custom sizes and specifications.
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MODELS AND VARIATIONS
Usually these Bearings come in two different types that have totally different design, structure, specifications and applications.
Single Row Spherical Roller Bearings
These are also known as Barrel Bearings because of their design and they are widely used where only low radial load carrying capacity is required. Other than the load capacity difference, Single Row these Bearings is quite similar to their counterpart in terms of performance and durability.
Double Row Spherical Roller Bearings
These are used where high radial load carrying capacity if required and that make them an essential part of almost all heavy duty machinery out there. The design difference between these two is obvious; Double Row Roller Bearings come with central flanges that optimize the overall performance of the apparatus.
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Shijiazhuang Longshu Mechanical & Electrical Equipment Trading Co., Ltd. , https://www.longsbearing.com