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    • 1. 发明授权
    • Component replacement control for fault-tolerant data processing system
    • 容错数据处理系统的组件更换控制
    • US5313628A
    • 1994-05-17
    • US816350
    • 1991-12-30
    • Noah R. MendelsohnJames PerchikThomas R. Hancock
    • Noah R. MendelsohnJames PerchikThomas R. Hancock
    • G06F11/20G06F11/00
    • G06F11/2025G06F11/2041
    • Apparatus is described for component replacement control in a data processing system, with each component being assigned a label that includes a component identifier and a replacement generation value. The apparatus includes a plurality of tables for redundantly storing replacement generation values for each component. The tables that store the replacement generation values are then updated to indicate the incremented replacement generation value for the new component. Circuitry then increments the replacement generation value assigned to a component identity that is replaced by a new component. The circuitry modifies the new component's label to indicate the incremented replacement generation value. When the system is subsequently started, the replacement generation values in each component's label are compared with the replacement generation values in the tables and wherever a match is not found, the component is rejected.
    • 描述了用于数据处理系统中的组件更换控制的装置,其中每个组件被分配有包括组件标识符和替换生成值的标签。 该装置包括用于冗余地存储每个组件的替换生成值的多个表。 然后更新存储替换生成值的表,以指示新组件的递增替换生成值。 电路然后增加分配给由新组件替换的组件标识的替换生成值。 电路修改新组件的标签以指示增加的替换生成值。 当系统随后启动时,将每个组件标签中的替换生成值与表中的替换生成值进行比较,并且在没有找到匹配的地方,组件被拒绝。
    • 3. 发明授权
    • Method and apparatus for automatically tracking the location of vehicles
    • 自动跟踪车辆位置的方法和装置
    • US5961571A
    • 1999-10-05
    • US364160
    • 1994-12-27
    • Russell E. GorrThomas R. HancockJ. Stephen JuddLong-Ji LinCarol L. NovakScott T. Rickard, Jr.
    • Russell E. GorrThomas R. HancockJ. Stephen JuddLong-Ji LinCarol L. NovakScott T. Rickard, Jr.
    • G01S3/783G01S5/00G05D1/02G06K9/00G06F165/00
    • G06K9/00791G01S3/783G01S5/00G05D1/0246G05D1/0272G06K9/00664
    • A system for automatically tracking the location of a vehicle includes a visual image detector mounted on the vehicle for producing as the vehicle moves along a route digitized strips of image data representing successive panoramic views of scenery about the vehicle at respective locations along the route. A sparse tracking subsystem processes and stores only selected ones of the image data strips representing substantially spaced apart successive locations along the route, for use as a sparse database. A dense tracking subsystem processes and stores as a dense database every successive one of the image data strips representing location along the route, whereby the dense tracking subsystem provides more accurate location of the vehicle when it retraces some portion of the route than the sparse tracking subsystem. After the sparse and dense databases are established, the location of the vehicle in real time as it retraces the route is performed by the dense tracking subsystem matching current image data strips from the visual image detector with the dense database strips to determine the location of the vehicle, as long as the vehicle stays on the pre-established route. If the vehicles strays from the route, the system senses the deviation and switches to the sparse tracking system to search a broader area in less time than the dense tracking system to attempt to relocate the vehicle along the route, after which the system switches back to the dense tracking subsystem.
    • 用于自动跟踪车辆位置的系统包括安装在车辆上的视觉图像检测器,用于随着车辆沿着路线沿着路线沿着路线在相应位置处沿着路线数字化的图像数据条表示代表连续的关于车辆的景观的全景图。 稀疏跟踪子系统处理并存储沿着路线表示基本上间隔开的连续位置的图像数据带中的所选择的一个,用作稀疏数据库。 密集跟踪子系统处理和存储每个连续的一个图像数据带中的密集数据,表示沿着路线的位置,由此密集跟踪子系统在回溯路径的某些部分比稀疏跟踪子系统时提供更准确的位置 。 在建立稀疏和密集的数据库之后,通过密集跟踪子系统利用密集数据库条带从视觉图像检测器匹配当前图像数据条来执行车辆在重新路线时的实时位置,以确定该位置 车辆,只要车辆停留在预先建立的路线上。 如果车辆从路线偏离,则系统感测到偏差,并切换到稀疏跟踪系统,以比密集跟踪系统更少的时间搜索更广泛的区域,以尝试沿着路线重新定位车辆,之后系统切换回 密集跟踪子系统。
    • 4. 发明授权
    • Visual incremental turn detector
    • 视觉增量转向检测器
    • US5642106A
    • 1997-06-24
    • US364880
    • 1994-12-27
    • Thomas R. HancockStephen J. JuddCarol L. NovakScott T. Rickard, Jr.
    • Thomas R. HancockStephen J. JuddCarol L. NovakScott T. Rickard, Jr.
    • G01C21/12G08G1/123
    • G01C21/12
    • A visual gyroscope system for detecting turns and straight line travel of a vehicle includes a visual image detector mounted on the vehicle, for producing sequential and successive digitized image data strips containing information identifying scenery about the vehicle at associated successive locations along the route travelled, A processor is programmed to extract from image detector each successive pair of image data strips, and rotate the second occurring strip of each pair until it matches the first occurring strip to obtain the incremental rotation and direction of rotation of the vehicle in its travel between strips. The incremental rotations between strips are accumulated and summed to obtain the total rotation upon completion of a turn, and along with the direction of rotation, identification of a right turn, left turn, u-turn, or straight line travel. Dead reckoning navigation is also provided via the inclusion of an odometer, for providing distance readings for the distance travelled between each successive image data strip.
    • 用于检测车辆的转弯和直线行驶的视觉陀螺仪系统包括安装在车辆上的视觉图像检测器,用于产生顺序和连续的数字化图像数据带,其包含沿着所行驶的路线的相关联的连续位置识别关于车辆的风景的信息 处理器被编程为从图像检测器中提取每个连续的一对图像数据条带,并且旋转每对的第二出现的条,直到它匹配第一发生的条,以获得车辆在其间的行进中的旋转的增量旋转和旋转方向。 条带之间的增量旋转被累加并相加以在转弯完成时获得总旋转,以及旋转方向,右转,左转,转弯或直线行进的识别。 还通过包含里程表提供航位推算导航,用于为每个连续图像数据条之间的距离提供距离读数。