Do you know about smart home wiring?
With the rise of smart homes , the seriousness of the wiring problem is becoming more and more prominent. So what should we do on this issue?
A smart home can be defined as a process or a system that utilizes advanced computer technology, network communication technology, and integrated wiring technology to implement various subsystems related to home life, including home appliance control, security , remote meter reading, and information. Services and video intercom and other functions are organically combined to make home life more comfortable, safe and effective through overall management.
At present, smart home products on the market are divided according to the wiring mode, mainly including three technologies: centralized control, field bus and wireless. The wireless control system can be divided into three categories: infrared communication, radio frequency wireless communication, and power carrier communication.
From a technical point of view, it is difficult to distinguish which type of technology in the above smart home products is in a leading position. However, we can explore which types of products have competitive advantages from the current situation in which the application of home intelligence systems in the world is more popular. At the same time, combined with the actual situation in China to make a comparison.
Due to some economically developed regions in China, urban population density is high and residential construction is relatively dense. At present, most residential buildings and communities share a transformer and even share a phase power supply. This brings technical problems to the application of power carrier-based smart home products in the domestic market. Due to poor signal stability and large crosstalk, and the limitation of address codes (a stand-alone system does not exceed 256 nodes at most), the installation of a power carrier system is prone to misoperation. Even if the manufacturer designed a device such as a wave blocker or a filter for this problem, the effect is not much improved.
From the application level, the centralized control system and the power carrier products can provide lighting and electrical control functions, and can also be controlled by remote control, telephone, etc. to achieve scene setting. Some products also have a security alarm signal interface. Most of the centralized control systems use small power relays to realize the on/off switch of the power circuit, which brings some problems to the field installation, and can only control low-power lamps and electrical appliances.
In summary, from the aspects of wiring, product function, system stability and ease of use, it is clear that fieldbus smart home products have considerable advantages in application, and should be the mainstream of China's home intelligent technology in the future. Direction of development.
Due to the technical difficulties that are difficult to solve, the power carrier technology is not a good choice in the construction of new buildings in the domestic market. Because the new building is very convenient to pre-buried the pipeline during the civil construction, there is no other advantage compared to the fieldbus technology except that no wiring is required. .
As for the centralized control of smart home products developed by single-chip technology, there are obvious deficiencies, low output power, incompatibility with traditional switching methods, complicated wiring, and at best a transitional product.
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