Rapid switching method for main link and standby link of wireless bridge

Abstract

The invention discloses a rapid switching method for a main link and a standby link of a wireless network bridge, which is applied to a wireless connection network of a wireless AP (access point) and an STA (station), the STA is configured with two radios, namely a main WiFi 0 and a standby WiFi 1, and comprises the following steps: S1, establishing a wireless transmission link between the STA and the wireless AP; wherein the main WiFi 0 is used as a main radio frequency unit to be associated with the wireless AP to establish a main link; the standby WiFi (Wireless Fidelity) 1 is used as a backup link, and wireless scanning is actively carried out; s2, establishing a link network quality monitoring mechanism, and detecting the network quality of the main link and the backup link in real time; s3, judging whether to switch according to the current network quality; when the switching condition is met, the main link and the backup link are automatically switched; otherwise, switching is not carried out. According to the method for rapidly switching the main link and the standby link of the wireless bridge, the main link can be automatically switched to the standby link when the state of the main link is abnormal or disconnected, so that the service is ensured not to be interrupted.

Description

technical field [0001] The invention relates to the technical field of data communication, in particular to a method for fast switching of active and standby links of a wireless network bridge. Background technique [0002] With the maturity and popularization of wireless networks, the application of wireless bridges will also be greatly popularized. Wireless can seamlessly connect local area networks that are tens of kilometers apart to create a unified enterprise or metropolitan area network system. Compared with traditional wired transmission, wireless bridges are widely used in elevator bridges, long-distance video transmission, monitoring, radio and television and other fields. [0003] With the wide application of wireless bridges in WLAN networks, reliability and stability have become urgent issues to be solved. A single wireless transmission can no longer meet the use of the existing network. When the network quality of the equipment is poor or fails, services will...

AI Technical Summary

Problems solved by technology

A single wireless transmission can no longer meet the use of the existing network. When the network quality of the device is poor or there is a failure, the service will be interrupted and the reliability cannot be guaranteed.

However, the cost of 1+1 backup is high, the service switching is slow, and the user's perception is poor, which is not conducive to the promotion of the bridge, and will cause a large amount of business loss during the switching process.

These conditions will reduce the application usage scenarios for wireless bridge applications, and sometimes even be fatal

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