In practical application, the access mode of WLAN is very simple. Take home WLAN as an example, you only need a wireless access device-router, a computer or terminal with wireless function (mobile phone or PAD), and a computer without wireless function only needs to plug in a wireless network card. With the above equipment, the specific operation is as follows: use a router to connect hotspots (other wireless networks that have been set up and are within the receiving range) or wired networks to the home, and configure the route according to the instructions provided by the network service provider. After the configuration is completed, put the receiving terminal in the coverage area of the home (the stable coverage area of WLAN is about 20 m to 50 m), turn on the wireless function of the terminal, and enter the user name and password given by the service provider to access the WLAN.
Typical application scenarios of WLAN are as follows:
Between buildings: It is simple and cheap to establish a network connection between buildings instead of a dedicated line.
Catering retail: WLAN products can be used in catering service industry, and the ordering contents of guests can be directly input from the dining table and transmitted to the kitchen and counter. When retailers promote sales, they can use WLAN products to set up temporary checkout counters.
Medical treatment: The use of portable computers with wireless LAN products to obtain real-time information can help medical staff avoid delaying the treatment of the wounded, unnecessary paperwork, delaying the circulation of documents and misdiagnosis, and improve the quality of care for the wounded.
Enterprise: When employees use WLAN products, they can send emails, share files and browse the Internet at will, no matter where they are in the office.
Warehouse management: General warehouse personnel can immediately input the latest data into the computer warehouse system through the application of wireless network.
Container terminal: The bridge crane in general container terminal can transmit real-time information back to the office when transferring containers, which is convenient for related operations.
Monitoring system: Generally, remote places that need to be monitored can send remote images back to the main control station through wireless network due to wiring difficulties.
Exhibition venue: For example, general electronic exhibitions and computer exhibitions, because of the high network demand and messy wiring, it is a good choice if you can use wireless network.