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    • 103. 发明申请
    • EFFICIENT ADDRESSING IN WIRELESS HART PROTOCOL
    • 在无线HART协议中高效处理
    • US20140038591A1
    • 2014-02-06
    • US14046143
    • 2013-10-04
    • HART COMMUNICATION FOUNDATION
    • Wallace A. Pratt, JR.Mark J. NixonEric D. RotvoldRobin S. PramanikTomas P. Lennvall
    • H04W84/10H04W92/10
    • H04W84/10H04L12/66H04L29/12254H04L61/2038H04L67/12H04W8/26H04W92/10
    • A method of providing a wireless extension to a wired protocol for transferring data to and from a field device operating in a process control environment via a wired connection, wherein the wired protocol and the wireless extension to the wired protocol have at least one protocol layer in common includes associating a unique address consistent with an addressing scheme of the wired protocol with each of a plurality of wireless devices operating in the process control environment and forming a wireless network, such that a data packet is routed between two of the plurality of wireless devices based on the unique address; associating a network identifier with the plurality of wireless devices; forming, for each of the plurality of wireless devices, a global address including the respective unique address and the network identifier in accordance with a second addressing scheme; and providing access to an external host operating outside the wireless network to each of the plurality of wireless devices based on the global address associated with the wireless device specified at the external host.
    • 一种向有线协议提供无线扩展的方法,用于经由有线连接向在过程控制环境中操作的现场设备传送数据和从现场设备传送数据,其中有线协议和对有线协议的无线扩展具有至少一个协议层 通常包括将与有线协议的寻址方案一致的唯一地址与在过程控制环境中操作的多个无线设备中的每一个相关联并且形成无线网络,使得数据分组在多个无线设备中的两个之间路由 基于独特的地址; 将网络标识符与所述多个无线设备相关联; 根据第二寻址方案,为所述多个无线设备中的每一个形成包括相应的唯一地址和所述网络标识符的全局地址; 以及基于与在所述外部主机指定的所述无线设备相关联的全球地址,向所述多个无线设备中的每一个提供对在所述无线网络之外运行的外部主机的访问。
    • 106. 发明申请
    • PASSIVELY POWERING A WIRELESS COMMUNICATIONS DEVICE
    • 无线通信无线通信设备
    • US20120309295A1
    • 2012-12-06
    • US13118693
    • 2011-05-31
    • Yael Maguire
    • Yael Maguire
    • H04W84/10H04W88/02
    • H02J50/10H02J17/00H02J50/40H02J50/80H04M1/6066
    • A wireless device includes an RF interface, logic circuitry, power circuitry, an impedance matching transformer, and a transducer. The RF interface is configured to receive an RF signal and provide an output data signal derived from the RF signal. The logic circuitry is configured to receive the output data signal and provide an output analog signal. The power circuitry is coupled to the RF interface and configured to provide DC operating power derived from the RF signal to the RF interface and the logic circuitry. The impedance matching transformer has an input coupled to the logic circuitry and an output. The transducer is coupled to the output of the impedance matching transformer and is configured to produce an audio signal based on the output analog signal.
    • 无线设备包括RF接口,逻辑电路,电源电路,阻抗匹配变压器和换能器。 RF接口被配置为接收RF信号并提供从RF信号导出的输出数据信号。 逻辑电路被配置为接收输出数据信号并提供输出模拟信号。 电源电路耦合到RF接口并且被配置为向RF接口和逻辑电路提供从RF信号导出的DC工作功率。 阻抗匹配变压器具有耦合到逻辑电路和输出的输入。 传感器耦合到阻抗匹配变压器的输出端,并被配置为基于输出模拟信号产生音频信号。
    • 110. 发明申请
    • Disparate radios in a wireless mesh network
    • 无线网状网络中的无线电
    • US20100246542A1
    • 2010-09-30
    • US12384012
    • 2009-03-31
    • Kelly Michael Orth
    • Kelly Michael Orth
    • H04W84/10H04L27/28
    • H04W84/18
    • A wireless mesh network that makes use of strategically placed nodes with radios having superior communication range through the use of high gain antennas, MIMO technology, high power transmitters, high sensitivity receivers, a combination thereof, etc. Besides the obvious effect of extending the physical coverage area of a network, the effect of the longer distance links formed by the nodes with superior range is a flattening of the wireless mesh network by reducing hop count, thereby improving performance, latency, reliability, cost, and power consumption among other factors.
    • 通过使用高增益天线,MIMO技术,高功率发射机,高灵敏度接收机,其组合等,利用具有优越通信范围的无线电的具有策略位置的节点的无线网状网络。除了延长物理 网络的覆盖区域,由具有优越范围的节点形成的较长距离链路的影响是通过减少跳数来平坦化无线网状网络,从而提高性能,延迟,可靠性,成本和功耗等因素。