Method and device for quickly switching different APs based on WiFi

Abstract

The invention discloses a method for quickly switching different APs based on WiFi. The method comprises the following steps: a signal that client equipment needs to switch the APs is obtained; the client equipment searches for all APs in a local area network to search for APs capable of being switched; the client equipment records AP switching information when AP switching is carried out each time, and establishes an AP node directed graph; when the AP switching condition is triggered, all paths associated with the current AP on the AP node directed graph are traversed by taking the current AP connected with the client equipment as a source point; and the path with the maximum AP communication quality index value is selected in all paths associated with the current AP, and is switched tothe AP corresponding to the selected path.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for fast switching between different APs based on WiFi. Background technique [0002] WiFi communication is generally divided into AP devices and client devices (that is, STA devices), and multiple client devices can be connected to the same AP device. Because the WiFi signal coverage of one AP device is limited, in large factories, offices, and homes, multiple APs are often required to ensure the coverage of WiFi signals in the entire area. Correspondingly, the client devices in the area can access the optimal AP according to the signal strength of each AP in the location to ensure the best communication quality. [0003] With the emergence of a large number of mobile devices such as AGV, the above application scenarios are faced with the problem of how to quickly switch between different APs. A certain device connects to AP1 at a certain mom...

AI Technical Summary

Problems solved by technology

If each channel is searched, it may take a lot of time to slow down the switching speed

[0012] 2. The signal strength does not represent the communication quality. It is possible that the AP with good signal strength may have poor communication delay and packet loss rate due to data congestion and interference from other devices.

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