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公开(公告)号：US07027918B2
公开(公告)日：2006-04-11
申请号：US10408496
申请日：2003-04-07
CPC分类号： G01S19/54 , G01C21/165 , G01S19/50
摘要： A satellite navigation system using multiple antennas for providing the position of multiple fiduciary points on an object even when fewer than four satellites are visible to some or all the antennas. Satellite signals from the multiple antennas are fed into at least one receiver. The receiver or receivers utilize constraint information, which is independent of the satellite signals. These external constraints are used to augment the signals received from the satellites, to obtain the position solution for each antenna. In a preferred embodiment, a common reference clock is used to provide an external constraint. Examples of other external constraints that can be used in the current invention are distance between the antennas, inertial measurement of attitude, rotational or linear position sensors, etc.
摘要翻译： 一种使用多个天线的卫星导航系统，用于在物体上提供多个受信点的位置，即使对于一些或所有天线可见少于四颗卫星。 来自多个天线的卫星信号被馈送到至少一个接收机。 接收机或接收机利用独立于卫星信号的约束信息。 这些外部约束用于增加从卫星接收的信号，以获得每个天线的位置解。 在优选实施例中，使用公共参考时钟来提供外部约束。 可以在本发明中使用的其他外部约束的示例是天线之间的距离，姿态的惯性测量，旋转或线性位置传感器等。
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公开(公告)号：US07693659B2
公开(公告)日：2010-04-06
申请号：US11190640
申请日：2005-07-27
IPC分类号： G01C21/00
CPC分类号： G01S19/54 , G01C21/165 , G01S19/50
摘要： A satellite navigation system using multiple antennas for providing the position of multiple fiduciary points on an object even when fewer than four satellites are visible to some or all the antennas. Satellite signals from the multiple antennas are fed into at least one receiver. The receiver or receivers utilize constraint information, which is independent of the satellite signals. These external constraints are used to augment the signals received from the satellites, to obtain the position solution for each antenna. In a preferred embodiment, a common reference clock is used to provide an external constraint. Examples of other external constraints that can be used in the current invention are distance between the antennas, inertial measurement of attitude, rotational or linear position sensors, etc.
摘要翻译： 一种使用多个天线的卫星导航系统，用于在物体上提供多个受信点的位置，即使对于一些或所有天线可见少于四颗卫星。 来自多个天线的卫星信号被馈送到至少一个接收机。 接收机或接收机利用独立于卫星信号的约束信息。 这些外部约束用于增加从卫星接收的信号，以获得每个天线的位置解。 在优选实施例中，使用公共参考时钟来提供外部约束。 可以在本发明中使用的其他外部约束的示例是天线之间的距离，姿态的惯性测量，旋转或线性位置传感器等。
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3.发明授权System and method for interactive selection and determination of agricultural vehicle guide paths offset from each other with varying curvature along their length 有权用于交互式选择和确定农用车辆引导路径的系统和方法，其沿其长度具有不同的曲率彼此偏移公开(公告)号：US07451030B2
公开(公告)日：2008-11-11
申请号：US11051490
申请日：2005-02-04
CPC分类号： G05D1/0278 , A01B69/008 , G01S19/14 , G01S19/44 , G05D1/0221 , G05D1/024 , G05D1/027 , G05D1/0272 , G05D2201/0201
摘要： A system and method provide for precision guiding of agricultural vehicles along a series of adjacent paths to form rows for cultivating a field. In one aspect of the invention the vehicle is moved along a first path while receiving positioning information from a navigational system (e.g., RTK GPS). This positioning information is stored in a processor and is used by the processor to compute a second path adjacent to said first path by calculating piecewise perpendicular offsets from the first path at multiple locations along the first path. The process is repeated to compute a third and subsequent paths so as to cover the field. Because of the offset process, the field may be covered with paths that have varying curvature along their length, while providing substantially no gaps or overlaps in the coverage of the field. In another aspect of the invention, the system may propose alternative paths and the user can intervene by steering the vehicle or using a graphical user interface to select among the alternative paths. A still further aspect of the invention allows for the recording of the paths that provide coverage of a field in the form of a template. This template can then be used to cause the vehicle to automatically steer along a previously calculated path in subsequent operations on the field, and in subsequent years.
摘要翻译： 一种系统和方法提供沿着一系列相邻路径的农用车辆的精确引导，以形成用于培养场的行。 在本发明的一个方面，车辆沿着第一路径移动，同时从导航系统（例如，RTK GPS）接收定位信息。 该定位信息被存储在处理器中，由处理器用来通过沿着第一路径在多个位置处计算来自第一路径的分段垂直偏移来计算与所述第一路径相邻的第二路径。 重复该过程以计算第三和随后的路径以覆盖该场。 由于偏移过程，该场可能被沿其长度具有变化曲率的路径覆盖，同时在场的覆盖范围内基本上没有间隙或重叠。 在本发明的另一方面，系统可以提出替代路径，并且用户可以通过转向车辆或使用图形用户界面在备选路径中进行选择来进行干预。 本发明的另一方面允许记录以模板形式提供场的覆盖的路径。 然后，该模板可以用于使得车辆在现场的后续操作中以及随后的年份中沿着先前计算的路径自动转向。
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4.发明授权Method and system for automatic control of vehicles based on carrier phase differential GPS 失效基于载波相位差GPS的车辆自动控制方法与系统
公开(公告)号：US6052647A
公开(公告)日：2000-04-18
申请号：US879628
申请日：1997-06-20
CPC分类号： G01S19/44 , G01S19/11 , G01S19/41 , G01S19/55 , G05D1/0278 , G01S19/14 , G05D2201/0201
摘要： Described is an automatic control system for land (and possible marine) vehicles based on carrier phase differential GPS (CPGPS). The system relies on CPGPS to determine vehicle position and attitude very precisely (position to within 1 cm and attitude to within 0.1.degree.). A system incorporates a technique to calculate and compensate for antenna motion due to vehicle roll and pitch. One aspect of the system utilizes an intelligent vehicle controller that recognizes and adapts to changing conditions, such as vehicle speed, implements towed by the vehicle, soil conditions, and disturbance level. The system provides the capability to control the vehicle on various paths, including straight lines and arbitrary curves. Also described is a technique for initialization and vehicle control using only a single pseudolite.
摘要翻译： 描述了基于载波相位差GPS（CPGPS）的土地（和可能的海上）车辆的自动控制系统。 系统依靠CPGPS非常精确地确定车辆位置和姿态（位置在1厘米以内，姿态在0.1度以内）。 一种系统包含一种用于计算和补偿由于车辆滚动和俯仰引起的天线运动的技术。 该系统的一个方面是利用智能车辆控制器来识别和适应车辆速度，车辆牵引的工具，土壤条件和扰动水平等变化的条件。 该系统提供了在各种路径上控制车辆的能力，包括直线和任意曲线。 还描述了仅使用单个伪卫星的初始化和车辆控制的技术。
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公开(公告)号：US08837728B2
公开(公告)日：2014-09-16
申请号：US13653401
申请日：2012-10-16
申请人： Per K. Enge , David Lawrence , Michael L. O'Connor , Michael L. Eglington , Gregory M. Gutt , David A. Whelan
发明人： Per K. Enge , David Lawrence , Michael L. O'Connor , Michael L. Eglington , Gregory M. Gutt , David A. Whelan
CPC分类号： H04L9/32 , G01S19/06 , G01S19/215 , H04L67/42 , H04W12/06
摘要： A system and methods for location authentication are presented. An estimated server signal is estimated based on a generated known code signal, and a client received satellite signal is received from a client device. The client received satellite signal is compared to the estimated server signal to provide a comparison result.
摘要翻译： 介绍了一种用于位置认证的系统和方法。 基于生成的已知码信号来估计服务器信号，并且从客户端装置接收客户接收到的卫星信号。 将客户端接收的卫星信号与估计的服务器信号进行比较，以提供比较结果。
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6.发明申请公开(公告)号：US20140108800A1
公开(公告)日：2014-04-17
申请号：US13653390
申请日：2012-10-16
IPC分类号： H04L9/32
CPC分类号： H04L9/3297 , G06F21/64 , H04L9/3223 , H04L9/3239 , H04L9/3294 , H04L63/08 , H04L63/12 , H04L63/123 , H04L2463/121 , H04W12/06 , H04W12/10 , H04W12/12
摘要： A system and methods for time and/or location authentication are presented. A hash value is received from a client device and a hash value receiving time of the received hash value is stored. A data block is received after receiving the hash value is received, the received data block comprising alleged transmission signal data. A computed hash value of the received data block is computed, and an estimated transmission signal client receiving time by the client is calculated based on the alleged transmission signal data. A timely possession of the received data block by the client device is authenticated based on a comparison of the computed hash value to the received hash value and a comparison of the hash value receiving time to the estimated transmission signal client receiving time.
摘要翻译： 提出了一种用于时间和/或位置认证的系统和方法。 从客户端设备接收到哈希值，并存储接收到的散列值的散列值接收时间。 在接收到接收到哈希值之后接收数据块，所接收的数据块包括所指示的传输信号数据。 计算接收到的数据块的计算哈希值，并且基于所声明的传输信号数据来计算由客户机接收时间的估计传输信号客户机。 基于计算的散列值与接收的散列值的比较以及散列值接收时间与估计的传输信号客户端接收时间的比较，对客户端设备接收到的数据块的及时掌握进行认证。
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公开(公告)号：US20140104103A1
公开(公告)日：2014-04-17
申请号：US13653401
申请日：2012-10-16
申请人： Per K. Enge , David Lawrence , Michael L. O'Connor , Michael L. Eglington , Gregory M. Gutt , David A. Whelan
发明人： Per K. Enge , David Lawrence , Michael L. O'Connor , Michael L. Eglington , Gregory M. Gutt , David A. Whelan
CPC分类号： H04L9/32 , G01S19/06 , G01S19/215 , H04L67/42 , H04W12/06
摘要： A system and methods for location authentication are presented. An estimated server signal is estimated based on a generated known code signal, and a client received satellite signal is received from a client device. The client received satellite signal is compared to the estimated server signal to provide a comparison result.
摘要翻译： 介绍了一种用于位置认证的系统和方法。 基于生成的已知码信号来估计服务器信号，并且从客户端装置接收客户接收到的卫星信号。 将客户端接收的卫星信号与估计的服务器信号进行比较，以提供比较结果。
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公开(公告)号：US07586438B1
公开(公告)日：2009-09-08
申请号：US11108195
申请日：2005-04-18
摘要： A Low Earth Orbiting (LEO) satellite is used for broadcasting differential navigation corrections. Using LEO satellites, the “footprint” of the beam is much smaller than for geosynchronous satellites. Datalink bandwidth requirements are reduced to sufficiently cover an entire footprint area. With a LEO satellite transmitting in multiple beams, these footprints become even smaller. Corrections targeted to such a small area provide local area corrections broadcast from the LEO satellites. Payment, discounts, subsidies or charges are arranged to encourage different entities to own or host base stations, resulting in wide distribution of the network of base stations for use with satellite communications.
摘要翻译： 低地球轨道（LEO）卫星用于广播差分导航校正。 使用LEO卫星，射束的“足迹”比地球同步卫星小得多。 减少数据链路带宽需求，以充分覆盖整个占用面积。 利用LEO卫星在多个波束中发射，这些足迹变得更小。 针对这样一个小区域的修正提供了从低地球轨道卫星广播的局部区域修正。 安排支付，折扣，补贴或费用来鼓励不同的实体拥有或主办基站，导致卫星通信使用的基站网络的广泛分发。
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公开(公告)号：US08769267B2
公开(公告)日：2014-07-01
申请号：US13586705
申请日：2012-08-15
IPC分类号： H04L29/06 , H04L12/56 , H04L9/32 , G06F15/173
CPC分类号： H04L45/00 , G01S5/0289 , H04L63/0428 , H04L63/0442 , H04L63/126 , H04L63/1466
摘要： A system and method for verifying and/or geolocating network nodes in a network in attenuated environments for cyber and network security applications are disclosed. The system involves an origination network node, a destination network node, and at least one router network node. The origination network node is configured for transmitting a data packet downstream to the destination network node through at least one router network node. The data packet contains a header portion and a payload data portion. At least one of the network nodes is an enabled network node. The enabled network node(s) is configured to verify any of the network nodes that are located upstream from the enabled network node(s) by analyzing the header portion and/or the payload data portion of the data packet.
摘要翻译： 公开了一种用于在网络和网络安全应用的衰减环境中验证和/或定位网络中的网络节点的系统和方法。 该系统涉及始发网络节点，目的地网络节点和至少一个路由器网络节点。 始发网络节点被配置为通过至少一个路由器网络节点将目的地网络节点下游的数据分组发送到目的地网络节点。 数据分组包含报头部分和有效载荷数据部分。 至少一个网络节点是启用的网络节点。 启用的网络节点被配置为通过分析数据分组的报头部分和/或有效载荷数据部分来验证位于启用的网络节点的上游的任何网络节点。
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10.发明申请SYSTEM AND METHODS FOR REDUCING GNSS RECEIVER POWER USAGE BY LEVERAGING SIGNALS OF OPPORTUNITY TO PREDICT GNSS AVAILABILITY 有权通过将机会信号转移到预测的全球导航卫星系统可用性来减少GNSS接收机功率的系统和方法公开(公告)号：US20140159953A1
公开(公告)日：2014-06-12
申请号：US13712896
申请日：2012-12-12
IPC分类号： G01S19/24
CPC分类号： G01S19/24 , G01S5/0252 , G01S19/34
摘要： A system and methods for reducing navigation satellite receiver power usage are presented. A wireless signal is received at a portable electronic device in a signal environment. At signal characteristic of the wireless signal at the portable electronic device is measured in the signal environment. An estimated signal strength of the wireless signal in the signal environment is estimated based on the signal characteristic. The estimated signal strength is compared to an expected signal strength of the wireless signal to calculate an estimated signal-strength-change relative to the expected signal strength. A GNSS signal is tracked at the portable electronic device, if the estimated signal-strength-change indicates an expected GNSS signal attenuation is lower than a signal attenuation threshold. The tracking of the GNSS signal is reconfigured at the portable electronic device, if the expected GNSS signal-strength-change indicates the expected GNSS signal attenuation is greater than the signal attenuation threshold.
摘要翻译： 介绍了减少导航卫星接收机功率使用的系统和方法。 在信号环境中的便携式电子设备处接收无线信号。 在信号环境中测量在便携式电子设备处的无线信号的信号特性。 基于信号特性来估计信号环境中的无线信号的估计信号强度。 将估计的信号强度与无线信号的预期信号强度进行比较，以计算相对于预期信号强度的估计信号强度变化。 如果估计的信号强度变化指示预期的GNSS信号衰减低于信号衰减阈值，则在便携式电子设备处跟踪GNSS信号。 如果预期的GNSS信号强度变化指示预期的GNSS信号衰减大于信号衰减阈值，则在便携式电子设备处重新配置GNSS信号的跟踪。
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