公开(公告)号：US08121805B2

公开(公告)日：2012-02-21

申请号：US12571226

申请日：2009-09-30

申请人： Chunjie Duan ,  Raymond Yim ,  Frederick J Igo, Jr. ,  Amine Maaref

发明人： Chunjie Duan ,  Raymond Yim ,  Frederick J Igo, Jr. ,  Amine Maaref

IPC分类号： G01B7/04 ,  G06F15/00

CPC分类号： G01B7/003

摘要： A location of an object is determined by arranging a sequence of bits on a substrate. The sequence of bits includes subsequence of bits, and each subsequence of bits is unique for each location along the substrate. When the object is at a particular location along the substrate a sensor detects the subsequence of bits at the particular location, and a decoder associates the location of the subsequence at the particular location with the object. The substrate can be a leaky coaxial cable with slits or not, corresponding to the bits, or lane markings on a road.

摘要翻译： 通过在衬底上布置位序列来确定对象的位置。 比特序列包括比特的子序列，并且比特的每个子序列对于沿着基底的每个位置是唯一的。 当物体沿着衬底处于特定位置时，传感器检测特定位置处的位的子序列，并且解码器将特定位置处的子序列的位置与对象相关联。 衬底可以是具有狭缝的泄漏同轴电缆，对应于道路上的位或车道标记。

公开(公告)号：US08565214B2

公开(公告)日：2013-10-22

申请号：US12979777

申请日：2010-12-28

申请人： Jianlin Guo ,  Raymond Yim ,  Jinyun Zhang ,  Philip V. Orlik ,  Chunjie Duan ,  Frederick J Igo, Jr.

发明人： Jianlin Guo ,  Raymond Yim ,  Jinyun Zhang ,  Philip V. Orlik ,  Chunjie Duan ,  Frederick J Igo, Jr.

IPC分类号： H04W4/00

CPC分类号： H04W72/1242

摘要： A hybrid communication network for a transportation safety system includes a fixed wired nodes and mobile wireless nodes. Because the wired nodes operate independently packets transmitted by the wired nodes to the wireless nodes need to be synchronized. A downlink travel time for downlink packets traveling from a controller to the wireless nodes is determined. Then, the controller schedules downlink data intervals (DDI) based on the downlink travel time; and transmits downlink packets to the wireless nodes during the DDI, such that a latency requirement of the transportation safety system is satisfied.

摘要翻译： 用于运输安全系统的混合通信网络包括固定有线节点和移动无线节点。 由于有线节点独立运行，有线节点传输到无线节点的数据包需要同步。 确定从控制器到无线节点的下行链路分组的下行链路行进时间。 然后，控制器基于下行链路行进时间调度下行链路数据间隔（DDI）; 并且在DDI期间向无线节点发送下行链路分组，使得满足运输安全系统的等待时间要求。

公开(公告)号：US08418813B2

公开(公告)日：2013-04-16

申请号：US12950683

申请日：2010-11-19

申请人： Raymond Yim ,  Philip V. Orlik ,  Chunjie Duan ,  Jinyun Zhang ,  Jianlin Guo ,  Frederick J Igo, Jr.

发明人： Raymond Yim ,  Philip V. Orlik ,  Chunjie Duan ,  Jinyun Zhang ,  Jianlin Guo ,  Frederick J Igo, Jr.

IPC分类号： B66B1/28

CPC分类号： B66B1/34 ,  B66B5/0031 ,  B66B13/22

摘要： In a network for a safety system in a transportation system, the transportation system includes a shaft and a car arranged in the shaft. A first wall node is at a first end of the shaft and a second wall node is at a second end of the shaft to communicate safety messages with the car. Each wall node includes at least one wireless transceiver connected to one or more antennas. Each car in the shaft includes at least two wireless transceiver connected to one or more antennas, wherein the first transceiver of the car uses a first frequency and the second transceiver of the car uses a second frequency to communicate each safety messages in duplicate. A wired backbone connects the set of wall nodes to a controller of the safety system of the transportation system.

摘要翻译： 在用于运输系统中的安全系统的网络中，运输系统包括布置在轴中的轴和轿厢。 第一壁节点位于轴的第一端，并且第二壁节点位于轴的第二端，以将安全信息与轿厢通信。 每个墙壁节点包括连接到一个或多个天线的至少一个无线收发器。 轴中的每个汽车包括连接到一个或多个天线的至少两个无线收发器，其中汽车的第一收发器使用第一频率，并且汽车的第二收发器使用第二频率来重复地传送每个安全消息。 有线骨干将该组墙壁节点连接到运输系统的安全系统的控制器。

公开(公告)号：US08824414B2

公开(公告)日：2014-09-02

申请号：US13418494

申请日：2012-03-13

申请人： Frederick J Igo, Jr. ,  Ghulam M Bhatti ,  Jianlin Guo ,  Zafer Sahinoglu

发明人： Frederick J Igo, Jr. ,  Ghulam M Bhatti ,  Jianlin Guo ,  Zafer Sahinoglu

IPC分类号： H04W4/00

CPC分类号： H04W28/16 ,  H04B1/713 ,  H04W84/18

摘要： In a wireless network including a server and clients, network resources, such as time slots and channel frequencies, are managed by having the server define the resources for future use by the clients, while the clients actually allocate the resources for their exclusive use according to performance criteria determined by the clients. The network can be ad-hoc and in industrial environments with low-latency requirements.

摘要翻译： 在包括服务器和客户端的无线网络中，通过使服务器定义用于客户端将来使用的资源来管理诸如时隙和信道频率之类的网络资源，而客户端实际分配用于其专用的资源 绩效标准由客户确定。 该网络可以是临时的，并且在低延迟要求的工业环境中。