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    • 6. 发明授权
    • Transmission between a sensor and a controller in a wireless sensor network
    • 传感器与无线传感器网络中的控制器之间的传输
    • US07378953B2
    • 2008-05-27
    • US11214317
    • 2005-08-29
    • Pedro E. CoronelSimeon FurrerWolfgang H. Schott
    • Pedro E. CoronelSimeon FurrerWolfgang H. Schott
    • G08B1/08
    • G01D21/00H04B7/0452H04Q9/00H04W16/28H04W52/0216H04W52/0219H04W52/0245H04W74/06H04W84/18
    • Provides: methods for transmission of signals between a sensor and a controller in a wireless sensor network; methods for operating the controller in the wireless sensor network; and methods for transmitting a sensor signal in the wireless sensor network from the sensor to the controller. A wireless sensor network includes a controller connected with multiple antennas for sending out a beacon signal at different instants into different directions and for receiving a sensor signal. Furthermore, the wireless sensor network comprises a sensor having a receiver connected with a sensor antenna for receiving the beacon signal, a transmitter connected with the sensor antenna for sending out the sensor signal, and a control unit which takes care that the sensor signal is transmitted after the beacon signal has been received.
    • 提供:在无线传感器网络中的传感器和控制器之间传输信号的方法; 在无线传感器网络中操作控制器的方法; 以及用于将无线传感器网络中的传感器信号从传感器传输到控制器的方法。 无线传感器网络包括与多个天线连接的控制器,用于将不同时刻的信标信号发送到不同方向并用于接收传感器信号。 此外,无线传感器网络包括具有与用于接收信标信号的传感器天线连接的接收器的传感器,与传感器天线连接的用于发送传感器信号的发射器以及注意传感器信号被传输的控制单元 在信标信号已经被接收之后。
    • 7. 发明授权
    • Estimating location using multi-antenna radio receiver
    • 使用多天线无线电接收机估计位置
    • US08086248B2
    • 2011-12-27
    • US12121916
    • 2008-05-16
    • Pedro E. CoronelWolfgang H. SchottBeat Weiss
    • Pedro E. CoronelWolfgang H. SchottBeat Weiss
    • H04W24/00H04M11/04
    • H04W4/20
    • Packets are periodically transmitted by a plurality of radio beacons deployed at known positions over a location estimation area. Monitoring is conducted for incoming packets. Upon receipt of a packet from a kth one of the beacons, received signal strength, RSSI, is measured at each of the antenna outputs, the packet is decoded to obtain the unique identifier and the unique sequence number, and the received signal strength at each of the antenna outputs is spatially averaged. The measuring, decoding, and spatial averaging are repeated for additional packets from the kth one of the beacons during a pre-defined time window T. The plurality of spatially averaged received signal strengths are temporally averaged over the pre-defined time window T, to obtain a spatially and temporally averaged value of received signal strength. The distance dk from the apparatus to the kth one of the beacons is approximated based on the spatially and temporally averaged value of received signal strength. The approximate distance dk is designated as {circumflex over (d)}k. This is repeated for the K beacons that have successfully transmitted packet(s) during the pre-defined time window, k=1 to K. The location of the object is estimated as an approximate intersection of spheres with radii {circumflex over (d)}k. Each sphere is centered at the known position of the kth one of the beacons.
    • 分组通过部署在位置估计区域上的已知位置的多个无线电信标周期性地发送。 对传入的数据包进行监控。 在从第k个信标中接收到分组时,在每个天线输出处测量接收信号强度RSSI,对分组进行解码以获得唯一标识符和唯一序列号,并且在每个天线输出处接收信号强度 的天线输出在空间上平均。 在预定义的时间窗口T期间,对来自第k个信标的附加分组重复测量,解码和空间平均。多个空间平均的接收信号强度在预定义的时间窗口T上进行时间平均, 获得接收信号强度的空间和时间平均值。 基于接收信号强度的空间和时间平均值,近似从设备到第k个信标的距离dk。 近似距离dk被指定为(d(d)} k的回旋。 对于在预定时间窗口(k = 1到K)内已经成功传输分组的K个信标重复这一点。该对象的位置被估计为具有半径的球体的近似交点{(d) } k。 每个球体都位于第k个信标的已知位置。
    • 9. 发明授权
    • Packet data transmission in code-division multiple access communication systems
    • 码分多址通信系统中的分组数据传输
    • US06181683B2
    • 2001-01-30
    • US08973264
    • 1997-12-03
    • Pierre R. ChevillatRoy D. CideciyanMarcel RupfWolfgang H. Schott
    • Pierre R. ChevillatRoy D. CideciyanMarcel RupfWolfgang H. Schott
    • H04B7216
    • H04L1/0065H04J13/00H04L1/0057H04L1/0059H04L1/0071H04L1/1867H04W8/26H04W28/065H04W48/08H04W52/367H04W52/50H04W60/00H04W74/004H04W74/0825H04W74/0833
    • A system and method for the wireless transmission of data packets in a code division multiple access communication system wherein one of the code division multiple access channels (PRCH) is used in a time-shared fashion for the transmission of the data packets from several transmitting stations (MSy, MSz) to a receiving station (BS). A request is sent from a transmitting station (MSy) to the corresponding receiving station (BS) of the communication system indicating the destination address to which data packet(s) are to be routed. Then, registering the transmitting station (MSy) and assigning an unique virtual connection identifier (VCIy) to it. Next, the transmitting station (MSy) is attached to the code division multiple access channel (PRCH) used for the transmission of data packets. Then, listening to the downlink of the code division multiple access channel (PRCH) used for the transmission of data packets until the corresponding receiving station (BS) broadcasts that it will be “idle” such that a random access to the code division multiple access channel (PRCH) used for the transmission of data packets is allowed in the next frame. Next, the transnmission power of the transmitting station (MSy) is ramped up during the next frame until a certain power level is reached. The data packet(s) and the virtual connection identifier (VCIy) are transmitted over the uplink of the code division multiple access channel (PRCH) used for the transmission of data packets to the receiving station (BS). The data packet(s) are routed to the destination address. Access to the code division multiple access channel (PRCH) used for the transmission of data packets is controller by a multiple access protocol based on carrier sensing and collision detection (CSMA/CD).
    • 一种用于在码分多址通信系统中无线传输数据分组的系统和方法,其中码分多址信道(PRCH)中的一个以时分方式用于从多个发射台发送数据分组 (MSy,MSz)到接收站(BS)。请求从发送站(MSy)发送到通信系统的相应接收站(BS),指示数据分组将要的目的地地址 然后,注册发送站(MSy)并向其分配唯一的虚拟连接标识符(VCIy)。接下来,发送站(MSy)附加到用于数据传输的码分多址信道(PRCH) 然后,监听用于数据分组传输的码分多址信道(PRCH)的下行链路,直到相应的接收站(BS)广播它将为“空闲” 使得在下一帧中允许对用于传输数据分组的码分多址信道(PRCH)的随机访问。接下来,发送站(MSy)的传输功率在下一帧期间增加,直到 数据包和虚拟连接标识符(VCIy)通过用于向接收站(BS)发送数据包的码分多址信道(PRCH)的上行链路发送。 数据包被路由到目的地址。用于传输数据包的码分多址信道(PRCH)的访问是基于载波侦听和冲突检测(CSMA / CD)的多址协议的控制器, 。