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公开(公告)号：US20090122781A1
公开(公告)日：2009-05-14
申请号：US11937015
申请日：2007-11-08
IPC分类号： H04J3/06
CPC分类号： H04J3/0667 , H04J3/0679 , H04W56/009 , Y02D70/164
摘要： An ad hoc method is provided for synchronizing a wireless network. The method involves broadcasting a first signal including a join message from a first node (FN). The method also involves saving a first timestamps in a memory device internal to the FN after broadcasting the first signal. The method further involves generating a signal including a join response message after receiving the first signal. The join response message is comprised of a second timestamp indicating a local time during which the first signal was received at the second node (SN). The method also includes the step of determining an initial time offset by computing a difference between the first timestamp and the second timestamp. The method further includes the steps of generating a request to send (RTS) message at the FN. The FN uses the initial time offset in conjunction with the RTS message to asynchronously communicate with the SN.
摘要翻译： 提供了一种用于同步无线网络的自组织方法。 该方法涉及从第一节点（FN）广播包括加入消息的第一信号。 该方法还包括在广播第一信号之后将第一时间戳保存在FN内部的存储器设备中。 该方法还包括在接收到第一信号之后产生包括连接响应消息的信号。 连接响应消息包括指示在第二节点（SN）处接收到第一信号的本地时间的第二时间戳。 该方法还包括通过计算第一时间戳和第二时间戳之间的差来确定初始时间偏移的步骤。 该方法还包括以下步骤：在FN处产生发送（RTS）消息的请求。 FN使用与RTS消息结合的初始时间偏移量与SN异步通信。
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公开(公告)号：US07903601B2
公开(公告)日：2011-03-08
申请号：US11937015
申请日：2007-11-08
CPC分类号： H04J3/0667 , H04J3/0679 , H04W56/009 , Y02D70/164
摘要： An ad hoc method is provided for synchronizing a wireless network. The method involves broadcasting a first signal including a join message from a first node (FN). The method also involves saving a first timestamps in a memory device internal to the FN after broadcasting the first signal. The method further involves generating a signal including a join response message after receiving the first signal. The join response message is comprised of a second timestamp indicating a local time during which the first signal was received at the second node (SN). The method also includes the step of determining an initial time offset by computing a difference between the first timestamp and the second timestamp. The method further includes the steps of generating a request to send (RTS) message at the FN. The FN uses the initial time offset in conjunction with the RTS message to asynchronously communicate with the SN.
摘要翻译： 提供了一种用于同步无线网络的自组织方法。 该方法涉及从第一节点（FN）广播包括加入消息的第一信号。 该方法还包括在广播第一信号之后将第一时间戳保存在FN内部的存储器设备中。 该方法还包括在接收到第一信号之后产生包括连接响应消息的信号。 连接响应消息包括指示在第二节点（SN）处接收到第一信号的本地时间的第二时间戳。 该方法还包括通过计算第一时间戳和第二时间戳之间的差来确定初始时间偏移的步骤。 该方法还包括以下步骤：在FN处产生发送（RTS）消息的请求。 FN使用与RTS消息结合的初始时间偏移量与SN异步通信。
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3.发明申请公开(公告)号：US20080114914A1
公开(公告)日：2008-05-15
申请号：US11598913
申请日：2006-11-14
CPC分类号： F41H13/00 , F41H11/00 , G08B25/009 , G08B25/10 , G08B29/181 , H04L12/12 , H04L12/403 , Y02D50/40
摘要： A sensor system includes N sensor system modules that each include respective sensor function modules for processing and communicating signals from at least one external detector. M slave modules selectively control power to the sensor function modules. M and N are integers greater than one. A master power control module serially controls the M slave modules via a bus based on functions of the sensor function modules.
摘要翻译： 传感器系统包括N个传感器系统模块，每个传感器系统模块包括用于处理和传送来自至少一个外部检测器的信号的相应传感器 M个从站模块选择性地控制传感器功能模块的电源。 M和N是大于1的整数。 主电源控制模块基于传感器功能模块的功能，通过总线对M个从站模块进行串行控制。
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