OFweek Smart Home Network: The mainstream technology of smart home has the following three categories:
First, X10 power carrier technology
The X10 power carrier technology refers to a technology that uses an existing power line to transmit analog or digital signals at high speed through a carrier wave. The biggest feature is that there is no need to re-arrange the network, as long as there is a wire, data can be transmitted.
The manufacturers using this technology mainly include radioshack, stanley, leviton, honeywell, which have sold 100 million modules in the United States alone, and more than 10 million households use x10 products. The x10 control specification has become the main leader of today's American home automation control specifications. Europe, the United States, Japan, Singapore, South Korea have a large number of professional manufacturers and distribution agencies to provide smart home products , the surrounding products and manufacturers of products are even larger, some well-known companies such as IBM, CIsco, Siemens, Samsung, Microsoft , Sony, Panasonic has long been involved in this industry, a wide variety of products, their respective technical standards are not the same, and some products such as X10 applications are quite mature.
Second, the common bus technology
1. KNX/EIB bus: Also known as the European installation bus, it was introduced to China in 1999 and has been successfully used in Europe for nearly 20 years. It is characterized by mature products, flexible function configuration structure, and control of various functional contents. Representative applications in China include: Shenzhen Vanke Building Research Center, etc.;
2. AP-BUS bus: It is the only bus technology with China's independent knowledge products. It is a fully distributed intelligent control network technology for families.
3. CAN-BUS bus: It is a serial data communication bus developed by German BOSCH in the early 1980s to solve the data exchange between control and test instruments. It is the most widely used site in the world. One of the buses.
4, RS485 bus: 485 bus because of its simple wiring, stable and reliable, it is widely used in video surveillance, access control intercom, building alarm, building intelligent control and other fields.
At present, the shortcomings of wired technology are obvious. When wiring, it is necessary to break the wall and dig trenches. It is necessary to hire a professional construction team, which needs to be cross-constructed with hydropower. When expanding, you also need to re-break the wall, dig, and re-route. In the event of a problem, it is still necessary to uncover the entire overhaul of the tiles and even require a large area of ​​rewiring. Increased costs and increased difficulty.
S100 I/O is the central process interface for Advant Controller 400 series process controllers. Thanks to built-in cablemarshalling facilities and parallel communication with the host controller, it is the right choice for centralized I/O systems and high-speed applications. The range of process I/O Modules is complete, consisting of general purpose digital and analog inputs and outputs and special interfaces for special tasks. These specials include pulse counting, frequency measuring, positioning, motor speed control and communication with other controllers. All I/O modules provide simple interfacing, accurate - yet fast - control, and easy integration of individual loops into a comprehensive plant-wide control and supervision system. The interface modules connect to the process through screw terminals on connection units normally installed inside, at the back of the cabinet. This solution keeps noise and destructive voltage spikes away from the central electronics and provides a neat and tidy process interface that is easy to maintain.
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