Configuring a radio network for selective broadcast

摘要

A method for configuring and operating a radio system employing the ZigBee radio standard is described. The method advantageously enables a group of radio devices which are logically linked to another radio device to respond with low latency to a message. The method comprises a group identifier being generated and issued to logically linked devices, details of which are provided in a pre-installed binding table. In operation, a radio message from a device which is logically linked to another is received by a device coordinator which then broadcasts ( 100 ) the message with the generated group identifier. Only those devices which have previously received a matching group identifier ( 140 ) respond ( 150 ) to the broadcast message. Since broadcasts are not acknowledged, a rapid system response is achieved. This is important in lighting applications where a user expects instantaneous operation of lamps at the flick of a logically linked radio light switch.