Information interaction method, device and system for wireless body area network (WBAN)

An information interaction method for a Wireless Body Area Network (WBAN), comprising:

• sending, by a node, information to a Hub according to a preset superframe structure, and receiving, by the node according to the preset superframe structure, a beacon frame sent by the Hub,
• wherein the preset superframe structure comprises three phases, a first phase comprises a first beacon period, a first timeslot period and a second timeslot period, the first timeslot period being used by nodes to send an emergency service and the second timeslot period being used by nodes to send an ordinary service;
• a second phase comprises a second beacon period and a third timeslot period, the third timeslot period being used by nodes to complementarily send a service;
• and a third phase comprises a fourth timeslot period, the fourth timeslot period being used by nodes to send a sleep application and/or an access application.

An information interaction device for a Wireless Body Area Network (WBAN), located in a Hub, comprising a hardware processor arranged to execute the following program modules:

• a first sending module, arranged to send beacon frames to nodes according to a preset superframe structure;
• and
• a first receiving module, arranged to receive, according to the preset superframe structure, information sent by the nodes,
• wherein the preset superframe structure comprises three phases, a first phase comprises a first beacon period, a first timeslot period and a second timeslot period, the first timeslot period being used by nodes to send an emergency service and the second timeslot period being used by nodes to send an ordinary service;
• a second phase comprises a second beacon period and a third timeslot period, the third timeslot period being used by nodes to complementarily send a service;
• and a third phase comprises a fourth timeslot period, the fourth timeslot period being used by nodes to send a sleep application and/or an access application.

An information interaction device for a Wireless Body Area Network (WBAN), located in a node, comprising a hardware processor arranged to execute the following program modules:

• a second sending module, arranged to send information to a Hub according to a preset superframe structure;
• and
• a second receiving module, arranged to receive, according to the preset superframe structure, a beacon frame sent by the Hub,
• wherein the preset superframe structure comprises three phases, a first phase comprises a first beacon period, a first timeslot period and a second timeslot period, the first timeslot period being used by nodes to send an emergency service and the second timeslot period being used by nodes to send an ordinary service;
• a second phase comprises a second beacon period and a third timeslot period, the third timeslot period being used by nodes to complementarily send a service;
• and a third phase comprises a fourth timeslot period, the fourth timeslot period being used by nodes to send a sleep application and/or an access application.