US Patent 11228973 Wireless sensing network communication method

A wireless sensing network communication method is disclosed in which, describes a gateway device and backup gateway devices in a wireless sensing network communicate in a subscribe-publish-based scheme. The gateway device subscribes to a device capability event. The gateway device subscribes to a network disconnection event. When network disconnection occurs, the gateway device publishes a network disconnection event. The backup gateway devices receive notification of the network disconnection event and publish device capability events in response. The gateway device selects a backup gateway device as a primary gateway in the wireless sensing network fulfill failover purpose.