ZigBee Technology Overview
The technology specified in the ZigBee protocol is a cheap, low-power, high-reliability short-range wireless networking communication technology. It is a wireless data transmission network platform composed of up to 65000 wireless data transmission modules. In the entire network, each ZigBee network node (FFD) can not only be used as a monitoring object. For example, the sensors connected to the network can directly collect and monitor data, and can also automatically transfer data from other network nodes. In addition, each ZigBee network node can also wirelessly connect with multiple isolated child nodes (RFDs) that do not undertake network information relay tasks within their own signal coverage.
Application areas of wireless transmission systems
The current popular “Internet of Things†(Internet of Things) aims to combine various information sensing devices with the Internet to form a huge network. In this huge network, as a "bridge" between the sensor and the communication network, we can use wired or wireless methods to achieve. In terms of investment, construction, and maintenance of the system, the wireless transmission system obviously has greater advantages.
The application areas of wireless transmission systems mainly include:
Home and building networks: temperature control of air conditioning systems, automatic control of lighting, automatic control of curtains, gas metering control, remote control of household appliances, etc .;
Industrial control: automatic control of various monitors and sensors;
Business: smart tags, etc .;
Public places: smoke detectors, etc .;
Agricultural control: collect various soil information and climate information;
Medical: Emergency call devices and medical sensors for the elderly and people with reduced mobility.
Because these applications are wide and mostly involve personal homes, the market demand for low cost, low power consumption, and high reliability is very strong. Judging from the characteristics of ZigBee products, it is very in line with this market demand.
System topology
The game keyboard requires a strong sense of key paragraphs,so as to produce a special feel suitable for game entertainment,and achieve a good experience for players in the game. The keyboard is one of the indispensable computer peripherals in our life. The previous keyboard has been used as an input device for office typing.With the emergence of computer games, the keyboard has gradually become a peripherals for games. Due to the relatively low performance of early computers,the way of computer games in this period is also relatively simple,ordinary office and home keyboard can completely meet the needs of players.However, with the continuous upgrading of hardware performance,the fun and complexity of games are also increasing, and the requirements for keyboard performance are also getting higher and higher,so the professional Gaming Keyboard was born.
As one of the most important peripherals for playing games,the tactile feel of the gaming keyboard is the most important reference.Tactile sensation is mainly determined by the strength of the key resistance degree.To judge the feel of a keyboard,it will be tested from whether the key elastic is moderate,whether the key force is uniform,whether the key cap is loose or shaken,and whether the key process is appropriate. Although different players have different requirements for the stretch and range of the keys,the most commonly accepted peripherals for playing games are the Black Axis Gaming Keyboard Mechanical.
The appearance includes the color and shape of the keyboard.A nice and stylish gaming keyboard will add a lot of color to your desktop,while a stuffy Wireless Gaming Keyboard will make you feel dull when playing games. Therefore,for the keyboard,as long as the player feels beautiful like, practical can be.
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