Where Is the Nerve of Smart Home

Smart home system mainly includes the following computer software technology, computer network technology, computer password technology, "plug and play" technology, image processing technology and sensor technology.

Computer software technology

The computer software involved in the digital home network, in addition to the general user program, highlights two aspects: the first is the network operating system, which should have the characteristics of small memory, convenient use, flexible configuration and good fault-tolerant performance; The second is the data structure. This is because it is impossible to use various huge databases in the general home control network, and a large amount of data needs to be processed in actual use. Therefore, designers need to design a database suitable for home network.

Computer network technology

What is more prominent here is the home gateway, such as connection with the Internet or Ethernet, route selection, browser design, web page production, as well as coding and compression technology and network interface technology.

Computer cryptography

The networking of digital home network with the outside world has brought great convenience to users. But it has its advantages and disadvantages. Uninvited guests such as "hackers" will also come uninvited. In order to protect the rights and privacy of users from infringement, irrelevant persons cannot be allowed to break into the private home network. One of the solutions is to use various encryption / decryption technologies.

"Plug and play" technology

This is a special technology required in the home network, that is, the network is required to automatically "feel" and "identify" new household appliances / devices connected to the Internet, and can control and monitor them. To complete this function, not only the household appliances / equipment should be changed (corresponding interfaces should be added), but also the network operating system should have such ability. In order to realize this function, firstly, standardize / standardize the interface protocol and equipment files. Secondly, the network operating system should have complete protocols. Finally, the controller (such as remote controller) should be able to automatically reorganize the system control logic. Therefore, it is not easy to realize this function. At present, there is no standardized and mature scheme abroad.

image processing techniques

Image processing technology is a high-level technology in information technology. At present, it has also entered the digital family. A typical example is the intelligent anti-theft door. This kind of anti-theft door does not need an ordinary key. Its "key" is an organ feature of each person in the family: for example, finger fingerprint, close-up of human face, iris in eyes, etc. These human body's own characteristics first need to be collected by some special devices, then the collected image information needs to be processed, and the corresponding required features are extracted. Finally, according to these features, we can identify "whether they are members of our home".

In such a system, the key and important technology is to quickly process the collected information and extract enough features to make correct recognition in the shortest possible time, which is one of the core technologies in image processing.

sensor technology

In a digital family, in order to ensure perfect control, there are a variety of physical quantities to be measured (such as flow, electricity, temperature, humidity, trace gas content, etc.), which all require sensor technology. Generally speaking, the measurement accuracy of physical quantities in the family is not high, and the volume and weight of measurement equipment are not strict. Therefore, it is also necessary to research and develop low-cost, stable, reliable and multi-functional integrated measurement technology, sensor technology and corresponding products for home network control.