Wireless communication system and method for automatically switching device identifications

摘要

A wireless communication system and methods for automatically switching device identifications are disclosed, where the device identifications are automatically determined by a plurality of work devices connected to a cable network after a connection time, respectively, and the one among the plurality of work devices becomes a main device may transmit a survive message to the work devices becoming a backup device, and the main device is determined as failing to work normally and a new main device is automatically determined again when the backup device fails to receive the survive message transmitted by the main device or a switch notification transmitted by the main device, so that the wireless communication on a carrier may have an improved stability and the technical efficacy may be achieved that the work device may automatically and rapidly determine the main device when no main device existing in the wireless network environment.

主权项

1. A wireless communication method for automatically switching a plurality of device identifications, comprising steps of:
connecting a plurality of work devices through a cable network, respectively; connecting each of the plurality of work devices through a wireless network, respectively; swapping for a protocol message through the cable network by each of the plurality of work devices, respectively, the protocol message comprising a connection time associated with each of the work devices; selecting a main device otherwise a backup device according to the connection time of each of the plurality of work devices among the plurality of work devices, respectively, wherein only one of the plurality of work devices becomes the main device and the other work devices as a plurality of backup device; and recording by the main device an IP address and a MAC address as of a source end and a destination end as an address pair within packets passing through the main device and transmitting a survive message to the plurality of backup devices each comprising the address pair through the cable network, respectively; receiving the survive message transmitted by the main device by each of the plurality of backup devices and recording the address pair of the plurality of backup devices, respectively; and transmitting a switch notification to each of the plurality of backup devices through the cable network by the main device, respectively, when the main device is unable to connect to the wireless network; and swapping again for the protocol message by each of plurality of backup devices, and selecting one of the plurality of backup devices as a new main device according to the connection time of each of the plurality of work devices, when each of the plurality of backup devices receives the switch notification transmitted by the main device or the survive message is absent from being received by each of the backup devices within a predetermined time, respectively.