There are many people in the industry who know about smart home technology, but people outside the industry or who are new to the industry may not be clear. Today Xiao Bian gave these people a brief introduction about the technology needed to design professional smart homes and meet some technical controls.
Smart Home Technology
Smart home technology is divided into wireless and wired. Wired smart home technology is bus technology, among which there are RS485 bus, BUS bus and so on. Wireless smart home technologies include ZigBee, Z-Wave, WiFi, Bluetooth, RF and more. These smart home technologies will be described in detail below.
In the early days of the development of smart homes, wired smart homes were the mainstream. After several decades of development, some well-known wired smart home manufacturers have matured their technology and dominated the wired smart home. The wireless smart home is popular with people because of its low cost and convenient installation. Its wireless technology has become the mainstream of the current smart home industry.
Bus technology
Professionally speaking, the bus is a structural form describing the transmission lines of electronic signals. It is a collection of signal lines and is a common channel for transmitting information between subsystems. Through the bus, the information among the components in the entire system can be transmitted, exchanged, shared, and logically controlled. For example, in a computer system, it is a common channel for the CPU, memory, input, and output devices to transmit information. The various components of the host computer are connected via a bus. The external device is connected to the bus through a corresponding interface circuit.
ZigBee technology
ZigBee is actually a short-range, low-power wireless communication technology. Its name comes from ZigZag, a body language of bees. When the bees newly discover a piece of flower, they will use special dances to inform their peers of the type and location of the food they find. It is a simple and efficient way of communicating information among bee colonies. Therefore, ZigBee has also become a “Zig bee protocolâ€.
Simply put, ZigBee is a communication protocol similar to WiFi and Bluetooth, enabling wireless communication between devices and devices. The difference is that although they are all wireless communication technologies, ZigBee has unique advantages in the field of smart home, such as low power consumption (emission power of only 1mW), many connected devices (more than 60,000 theoretically), and security. High (AES-128 encryption algorithm) and so on.
Z-Wave Technology
Z-Wave is an emerging radio frequency-based, low-cost, low-power, high-reliability, short-range wireless communication technology suitable for networks. The operating frequency band is 908.42MHz (USA) ~868.42MHz (Europe). The FSK (BFSK/GFSK) modulation method is adopted. The data transmission rate is 9.6 kbps. The effective coverage of the signal is 30m in the room and 100m outdoors, suitable for narrow Broadband applications.
As the communication distance increases, the complexity, power consumption, and system cost of the equipment are all increasing. Compared to the existing various wireless communication technologies, the Z-Wave technology will be the lowest power and lowest cost technology. Promote low-rate wireless personal area networks.
Z-Wave technology is designed for residential, lighting commercial control and status reading applications such as meter reading, lighting and appliance control, HVAC, access control, security and fire detection. Z-Wave can convert any independent device into an intelligent network device, enabling control and wireless monitoring.
Z-Wave technology was originally designed in the wireless control of smart homes. With the transmission of small data format, the transmission rate of 40 kb/s is sufficient to cope with, even using 9.6 kb/s rate transmission at an early stage. Compared with other wireless technologies of the same kind, it has a relatively low transmission frequency, a relatively long transmission distance, and a certain price advantage.
WiFi technology
WiFi technology has not been widely used in the smart home field because of its high power and small network capacity. However, with the development of technology, many manufacturers have introduced low-power WiFi chips. At the same time, the IEEE is about to publish the 802.11ah standard for Internet of Things applications, and it uses an unlicensed band below 1 GHz for its operating frequency. With features such as greater coverage, support for more users, and lower power consumption, WiFi is more widely used in smart homes.
Nowadays, the popularity of smart phones is getting higher and higher, and the functions are becoming more and more powerful. At the same time, along with the development of mobile 4G networks, mobile phones have gradually become the center of information for people. Therefore, the mobile phone as a smart home control center will become the trend of smart home development. This paper presents a smart home system that uses iPhone as the control center and WiFi as the home network.
Bluetooth technology
Bluetooth is a wireless communication technology that enables short-range data exchange between fixed and mobile devices. The Bluetooth technology was originally created by telecommunications giant Ericsson in 1994 as an alternative to RS232 data lines. Bluetooth can connect multiple devices, overcoming data synchronization problems.
The so-called Bluetooth technology is actually a short-range wireless communication technology. By using the "Bluetooth" technology, it can effectively simplify the communication between mobile communication terminal devices such as PDAs, notebook computers, and mobile phone handsets, and can also successfully simplify the above. The communication between these devices and the Internet makes the data transmission between these modern communication devices and the Internet more efficient and efficient, and broadens the road for wireless communication.
Radio frequency technology
Radio Frequency (RF) is an abbreviation of Radio Frequency. The more common applications are radio frequency identification, often called inductive electronic chip or proximity card, proximity card, contactless card, electronic tag, electronic bar code and so on. The principle is that the scanner emits radio wave energy of a specific frequency to the receiver to drive the receiver circuit to send the internal code, and the scanner receives the code.
RFID radio frequency identification is a non-contact automatic identification technology. It automatically identifies target objects and obtains relevant data through radio frequency signals. The identification work can work in various harsh environments without manual intervention. RFID technology can identify high-speed moving objects and can identify multiple labels at the same time. The operation is quick and easy.
All of the smart home technologies mentioned above can be applied to the design of professional smart homes, but the various technologies have their own advantages and disadvantages, and the ZigBee technology is currently the most widely used, so Xiaobian recommends some technologies here. Control can study ZigBee technology.
Related browsing
Article : What does Smart Home mean? - Analyze it for you in many ways
Recommended : smart home package smart home franchise phone smart home brand ranking
Fiber Optic Patch Panel(ODF)
Fiber optic patch panel is now widely used in networks and it is an integrated unit for fiber management, we are offering various kinds of Fiber Optic Patch Panel, such as wall mounted fiber optic patch panel, rack mounted fiber optic patch panels. These equipment functions to fix and manage the fiber optic cables inside the box as well as provide protection.
Our wall mounted fiber patch panels accommodate up to 8 modular panels and is equipped with routing guides to limit bend radius and enhance strain-relief control. The 16-gauge steel with corrosion-resistant black powder finish coat housing provides excellent protection for the inside fibers. Wall-mount available unloaded, as well as having the capability to become a full-splice enclosure with mechanical terminations. A large variety of connector adapters are offered to meet your specific requirements. Such as SC, FC, ST, LC, etc, we can also pre-install various kinds of fiber optic pigtails inside the patch panel.
YLTelecom offers a series of changeable inside panels to fit for different kinds of the adaptor interface, and fit for both round and ribbon fiber optic cables. Our rack mounted fiber patch panels can be drawer type or economic type without draw design.
A Fiber-Optic Patch Panel is used to separate out the fibers within a fiber-optic cable. By using one of these panels, the fibers can be spliced to individual fibers on other cables, allowing the cables to be crossed and connected in a variety of ways. In addition, the panel creates a safe environment in which to work with exposed fibers.
There are two main types of Fiber-Optic Enclosures. One is a wall-mounted device, which, in its most basic form, can keep 12 different fibers separate from one another. If the fiber-optic cable has more than 12 fibers, the extra fibers can be moved to a second panel or an engineer can use a panel that is designed to hold more fibers separately. Wall-mounted panels can be constructed to hold up to 144 fibers at once.
The other type of Fiber-Optic Patch Panel is a Rack-Mounted Panel. This type of panel holds the fibers horizontally and is often designed to open like a drawer. Sliding the panel open gives an optical engineer easy access to the fibers inside.
Fiber Patch Panel, Fiber Optic Patch Panel, Optical Patch Panel, Outdoor Fiber Optic Patch Panel, Optical Distribution Frame
NINGBO YULIANG TELECOM MUNICATIONS EQUIPMENT CO.,LTD. , https://www.yltelecom.com