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    • 3. 发明授权
    • Beacon scheduling system and method for preventing beacon overlapping
    • 信标调度系统和防止信标重叠的方法
    • US08121080B2
    • 2012-02-21
    • US11947342
    • 2007-11-29
    • Young-Hwan HamSun-Joong KimCheol-Sig Pyo
    • Young-Hwan HamSun-Joong KimCheol-Sig Pyo
    • H04W4/00
    • H04W16/10H04W48/12H04W84/18
    • Provided are a beacon scheduling system and method for preventing beacon overlapping in a ZigBee network including routers each with a beacon slot number according to a specific time slot. The system includes: a first router periodically transmitting beacons at a beacon interval according to a specific time slot; and a second router finding the beacon interval by scanning the beacons transmitted by the first router and transmitting beacons within the beacon interval in consideration of a superframe period for transmitting data. When a router in a sensor network operates, the router can efficiently select the beacon transmission time, and a sink node manages beacon overlapping between all the routers. Therefore, stable, low-energy consumption, and excellent performance sensor networking environments can be established in a beacon mode.
    • 提供了一种用于防止ZigBee网络中的信标重叠的信标调度系统和方法,包括根据特定时隙具有信标时隙号的路由器。 该系统包括:第一路由器根据特定时隙周期性地以信标间隔发送信标; 以及第二路由器,通过扫描由第一路由器发送的信标并在考虑用于发送数据的超帧周期之内在信标间隔内发送信标来找到信标间隔。 当传感器网络中的路由器运行时,路由器可以有效地选择信标传输时间,并且汇聚节点管理所有路由器之间的信标重叠。 因此,可以在信标模式下建立稳定,低能耗和卓越性能的传感器网络环境。