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    • 3. 发明授权
    • Estimation of vehicle location
    • 车辆位置估算
    • US09127952B2
    • 2015-09-08
    • US13364137
    • 2012-02-01
    • Chaminda BasnayakeEray YasanCurtis L. HayDebo Sun
    • Chaminda BasnayakeEray YasanCurtis L. HayDebo Sun
    • G01C21/30G01C21/16
    • G01C21/30G01C21/165
    • A method for estimating the position of a telematics-equipped vehicle during navigation includes: receiving a partial map corresponding to a route; receiving Global Positioning System (GPS) data corresponding to a current position of the vehicle; performing a closest street (CS) mapping based on the GPS data and the partial map so as to provide an estimation for a vehicle position on a street of the partial map; performing speed sum (SS) mapping based on the estimated vehicle position and speed readings corresponding to vehicle speed so as to provide an estimation of distance traveled with reference to a previous vehicle position; and presenting a map matched vehicle position to a user based on the CS mapping and the SS mapping.
    • 一种用于在导航期间估计配备有远程信息处理车辆的位置的方法,包括:接收对应于路线的部分地图; 接收对应于车辆当前位置的全球定位系统(GPS)数据; 基于所述GPS数据和所述部分地图执行最近的街道(CS)映射,以便为所述部分地图的街道上的车辆位置提供估计; 基于对应于车速的估计车辆位置和速度读数执行速度和(SS)映射,以便提供参考先前车辆位置所行进的距离的估计; 并且基于CS映射和SS映射向用户呈现地图匹配的车辆位置。
    • 4. 发明申请
    • Estimation of Vehicle Location
    • 车辆位置估算
    • US20130197795A1
    • 2013-08-01
    • US13364137
    • 2012-02-01
    • Chaminda BasnayakeEray YasanCurtis L. HayDebo Sun
    • Chaminda BasnayakeEray YasanCurtis L. HayDebo Sun
    • G01C21/30
    • G01C21/30G01C21/165
    • A method for estimating the position of a telematics-equipped vehicle during navigation includes: receiving a partial map corresponding to a route; receiving Global Positioning System (GPS) data corresponding to a current position of the vehicle; performing a closest street (CS) mapping based on the GPS data and the partial map so as to provide an estimation for a vehicle position on a street of the partial map; performing speed sum (SS) mapping based on the estimated vehicle position and speed readings corresponding to vehicle speed so as to provide an estimation of distance traveled with reference to a previous vehicle position; and presenting a map matched vehicle position to a user based on the CS mapping and the SS mapping.
    • 一种用于在导航期间估计配备有远程信息处理车辆的位置的方法,包括:接收对应于路线的部分地图; 接收对应于车辆当前位置的全球定位系统(GPS)数据; 基于所述GPS数据和所述部分地图执行最近的街道(CS)映射,以便为所述部分地图的街道上的车辆位置提供估计; 基于对应于车速的估计车辆位置和速度读数执行速度和(SS)映射,以便提供参考先前车辆位置所行进的距离的估计; 并且基于CS映射和SS映射向用户呈现地图匹配的车辆位置。
    • 7. 发明授权
    • Data sensor coordination using time synchronization in a multi-bus controller area network system
    • 数据传感器协调在多总线控制器区域网络系统中使用时间同步
    • US08504864B2
    • 2013-08-06
    • US12957638
    • 2010-12-01
    • Sandeep MenonChaminda Basnayake
    • Sandeep MenonChaminda Basnayake
    • G06F1/12G06F13/42
    • B60T7/18H04J3/0644H04J3/0664H04L12/403H04L2012/40215H04L2012/40273
    • A method is provided for synchronizing time in an unsynchronized vehicle controller area network system. A master control unit receives a global time from a time synchronization source. The master control unit estimates a respective time delay in transmitting messages by electronic control units on each controller area network bus. The time delay is a difference between a time when a message is generated by a respective electronic control unit for transmission on a respective controller area network bus and a time when the message is transmitted on the respective controller area network bus. The global time is adjusted for each respective controller area network bus based on the estimated time delays associated with each respective controller area network bus. Global time messages from the master control unit are transmitted to each electronic control unit that include the adjusted global times for an associated controller area network bus.
    • 提供了一种在不同步的车辆控制器区域网络系统中同步时间的方法。 主控单元从时间同步源接收全局时间。 主控制单元估计每个控制器区域网络总线上的电子控制单元发送消息的各自的时间延迟。 时间延迟是由相应的电子控制单元在相应的控制器区域网络总线上发送的消息产生的时间与在各个控制器区域网络总线上发送消息的时间之间的差异。 基于与每个相应的控制器区域网络总线相关联的估计的时间延迟,为每个相应的控制器局域网总线调整全局时间。 来自主控制单元的全局时间消息被发送到每个电子控制单元,其包括相关联的控制器区域网络总线的经调整的全局时间。
    • 8. 发明授权
    • Use of self and neighboring vehicle GPS/GNSS data to estimate current and approaching sky visibility changes
    • 使用自身和相邻车辆GPS / GNSS数据来估计当前和接近的天空可见度变化
    • US08473196B2
    • 2013-06-25
    • US13025437
    • 2011-02-11
    • Chaminda Basnayake
    • Chaminda Basnayake
    • G01C21/30
    • G01C21/32G01S5/0072G01S19/05G01S19/25G01S19/258G01S19/39G01S19/49H04W64/00
    • A method and system for creating a sky visibility map, using data from a vehicle and its neighbors. A host vehicle with satellite-based navigation capability measures the quality of signals it receives from available satellites, where azimuth and elevation angles of the satellites are known from an ephemeris or almanac. The host vehicle also receives satellite signal data from surrounding vehicles via vehicle-to-vehicle communication. Using data from all of the vehicles, a sky visibility map is constructed, indicating where obstructions to satellite visibility exist for different locations. The sky visibility map is used to anticipate satellite signal quality. A driving environment classification can be used to configure other vehicle systems. The sky visibility map can also be constructed without using data from surrounding vehicles; the host vehicle can store its satellite signal data long-term and use it to estimate satellite visibility when returning to a location previously visited.
    • 一种使用来自车辆及其邻居的数据来创建天空可视性地图的方法和系统。 具有卫星导航功能的主机可以测量从可用卫星接收的信号的质量,卫星的方位角和仰角从星历或年历已知。 本车辆还通过车对车通信从周围车辆接收卫星信号数据。 使用所有车辆的数据,构建了一个天空可见度图,指示不同位置的卫星可见性的障碍物。 天空可见度图用于预测卫星信号质量。 驾驶环境分类可用于配置其他车辆系统。 天空可见度图也可以在不使用周围车辆的数据的情况下构建; 主机可以长时间存储其卫星信号数据,并使用它来在返回到先前访问的位置时估计卫星可见度。
    • 9. 发明申请
    • USE OF SELF AND NEIGHBORING VEHICLE GPS/GNSS DATA TO ESTIMATE CURRENT AND APPROACHING SKY VISIBILITY CHANGES
    • 使用自身和相邻车辆GPS / GNSS数据估计电流和接近天空可见性变化
    • US20120209519A1
    • 2012-08-16
    • US13025437
    • 2011-02-11
    • Chaminda Basnayake
    • Chaminda Basnayake
    • G01C21/26
    • G01C21/32G01S5/0072G01S19/05G01S19/25G01S19/258G01S19/39G01S19/49H04W64/00
    • A method and system for creating a sky visibility map, using data from a vehicle and its neighbors. A host vehicle with satellite-based navigation capability measures the quality of signals it receives from available satellites, where azimuth and elevation angles of the satellites are known from an ephemeris or almanac. The host vehicle also receives satellite signal data from surrounding vehicles via vehicle-to-vehicle communication. Using data from all of the vehicles, a sky visibility map is constructed, indicating where obstructions to satellite visibility exist for different locations. The sky visibility map is used to anticipate satellite signal quality. A driving environment classification can be used to configure other vehicle systems. The sky visibility map can also be constructed without using data from surrounding vehicles; the host vehicle can store its satellite signal data long-term and use it to estimate satellite visibility when returning to a location previously visited.
    • 一种使用来自车辆及其邻居的数据来创建天空可视性地图的方法和系统。 具有卫星导航功能的主机可以测量从可用卫星接收的信号的质量,卫星的方位角和仰角从星历或年历已知。 本车辆还通过车对车通信从周围车辆接收卫星信号数据。 使用所有车辆的数据,构建了一个天空可见度图,指示不同位置的卫星可见性的障碍物。 天空可见度图用于预测卫星信号质量。 驾驶环境分类可用于配置其他车辆系统。 天空可见度图也可以在不使用周围车辆的数据的情况下构建; 主机可以长时间存储其卫星信号数据,并使用它来在返回到先前访问的位置时估计卫星可见度。