Method and system for smartly controlling WIFI transmission distance

Abstract

The invention relates to the field of wireless communication and discloses a method and system for smartly controlling the WIFI transmission distance. The distance from a mobile WIFI terminal device to a WIFI terminal and the signal strength when a WIFI is stable are detected through the WIFI terminal. When the distance is shorter than the preset distance or the signal strength is higher than the preset signal strength, a CPU (Central Processing Unit) or an MCU (Microcontroller Unit) connects a radio frequency switch and a first port through a first control line and moreover disconnects power of an external PA (Power Amplifier) through a second control line, so the external PA does not work. When the distance is longer than the preset distance or the signal strength is lower than the preset signal strength, the CPU or the MCU connects the radio frequency switch and the second port through the first control line and moreover disconnects the power of the external PA through the second control line, so the external PA starts working. According to the method and the system, the seamless switching of the WIFI communication mode from the near distance to the long distance or from the long distance to the near distance is realized, and the transmission distance of the WIFI is smartly controlled.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a method and system for intelligently controlling WIFI transmission distance. Background technique [0002] WIFI is a technology that allows electronic devices to connect to a wireless local area network (WLAN), usually using the 2.4GUHF or 5G SHF ISM radio frequency bands. Connections to WLANs are usually password-protected, but can also be open, allowing any device within range of the WLAN to connect. WIFI is a brand of wireless network communication technology, held by the WIFI Alliance, the purpose is to improve the interoperability between wireless network products based on the IEEE 802.11 standard. [0003] Wireless Internet access can be simply understood as wireless Internet access. Almost all smart phones, tablet computers and laptops support WIFI Internet access, which is the most widely used wireless network transmission technology today. In fact, it c...

AI Technical Summary

Problems solved by technology

Generally, the software of this kind of solution will set three power levels of WIFI, high, medium and low to realize short-distance and long-distance transmission. Relatively large, especially for mobile terminals that use batteries, a lot of power will be wasted when working at close range; It needs to be restarted to take effect, so for the user, the operation is more troublesome

[0007] Based on the above two solutions, there are corresponding defects, which cannot meet the needs of users.

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