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    • 32. 发明授权
    • Position estimation device and position estimation method
    • 位置估计装置和位置估计方法
    • US09057781B2
    • 2015-06-16
    • US13029570
    • 2011-02-17
    • Mikio BandoToshiyuki AokiTomoaki HirutaTakayoshi YokotaHiroyuki KohidaKazuhiro OkadaZhixing Liu
    • Mikio BandoToshiyuki AokiTomoaki HirutaTakayoshi YokotaHiroyuki KohidaKazuhiro OkadaZhixing Liu
    • G06F17/10G01S19/40G01S19/49
    • G01S19/49G01S19/40
    • A position estimation device includes: a mathematical expression model processing unit that calculates a position of a mobile object, a condition quantity indicating a moving condition of the mobile object and an error in the condition quantity through filtering processing executed by using a probability model based upon an attitude information and a positioning information of the mobile object having been obtained from sensors and a specific mathematical expression model among a plurality of mathematical expression models expressing behavior of the mobile object; a threshold calculation unit that calculates a threshold candidate value for a threshold value to be used as a criterion when selecting the specific mathematical expression model, by using the error; a threshold value determining unit that determines the threshold value based upon the threshold candidate value; and a mathematical expression model selection unit that selects the specific mathematical expression model based upon the threshold value.
    • 位置估计装置包括:数学表达式模型处理单元,其通过使用基于以下的概率模型执行的滤波处理来计算移动体的位置,表示移动体的移动状态的状态量和状态量的误差 已经从表示该移动体的行为的多个数学表达式模型中的传感器和特定数学表达式模型获得了移动对象的姿态信息和定位信息; 阈值计算单元,其通过使用所述误差来计算在选择所述特定数学表达式模型时用作准则的阈值的阈值候选值; 阈值确定单元,其基于所述阈值候选值来确定所述阈值; 以及基于所述阈值选择所述特定数学表达式模型的数学表达式模型选择单元。
    • 33. 发明授权
    • Traffic information system based on travel history
    • 基于旅游历史的交通信息系统
    • US07991549B2
    • 2011-08-02
    • US12019151
    • 2008-01-24
    • Kazuya KimitaTakayoshi YokotaKoichiro Tanikoshi
    • Kazuya KimitaTakayoshi YokotaKoichiro Tanikoshi
    • G01C21/30G01C21/32G08G1/00G01C21/00
    • G08G1/0104G08G1/20
    • A traffic information system including a travel history database retaining the data on the travel history of vehicle measured at a constant temporal or running interval; a link cost weighting pattern database for storing patterns for weighting the link costs of road links, used in the determination of the travel paths of vehicles; a vehicle ID/link cost weighting pattern set database retaining the data representing the matching of the vehicle IDs with their associated link cost weighting patterns used to determine the travel paths of the vehicles; a link cost weighting pattern selection unit selecting the patterns for weighting the link costs used to determine the travel paths of the vehicles on the basis of the vehicle IDs; and a vehicle ID/link cost weighting pattern matching unit recording the data representing the matching of the vehicle IDs with their associated link cost weighting patterns.
    • 一种交通信息系统,其包括保持以恒定的时间或运行间隔测量的车辆的行驶历史的数据的旅行历史数据库; 链路成本加权模式数据库,用于存储用于对车辆行驶路径的确定中使用的道路链路的链路费用进行加权的模式; 车辆ID /链路成本加权模式集数据库,保存表示车辆ID的匹配的数据及其用于确定车辆的行驶路径的相关链路成本加权模式; 链路成本加权模式选择单元,基于车辆ID选择用于加权用于确定车辆的行驶路径的链路成本的模式; 以及车辆ID /链路成本加权模式匹配单元,其将表示车辆ID的匹配的数据与其相关联的链路成本加权模式进行记录。
    • 36. 发明申请
    • Position Estimation Device and Position Estimation Method
    • 位置估计装置和位置估计方法
    • US20110208496A1
    • 2011-08-25
    • US13029570
    • 2011-02-17
    • Mikio BandoToshiyuki AokiTomoaki HirutaTakayoshi YokotaHiroyuki KohidaKazuhiro OkadaZhixing Liu
    • Mikio BandoToshiyuki AokiTomoaki HirutaTakayoshi YokotaHiroyuki KohidaKazuhiro OkadaZhixing Liu
    • G06F17/10
    • G01S19/49G01S19/40
    • A position estimation device includes: a mathematical expression model processing unit that calculates a position of a mobile object, a condition quantity indicating a moving condition of the mobile object and an error in the condition quantity through filtering processing executed by using a probability model based upon an attitude information and a positioning information of the mobile object having been obtained from sensors and a specific mathematical expression model among a plurality of mathematical expression models expressing behavior of the mobile object; a threshold calculation unit that calculates a threshold candidate value for a threshold value to be used as a criterion when selecting the specific mathematical expression model, by using the error; a threshold value determining unit that determines the threshold value based upon the threshold candidate value; and a mathematical expression model selection unit that selects the specific mathematical expression model based upon the threshold value.
    • 位置估计装置包括:数学表达式模型处理单元,其通过使用基于以下的概率模型执行的滤波处理来计算移动体的位置,表示移动体的移动状态的状态量和状态量的误差 已经从表示该移动体的行为的多个数学表达式模型中的传感器和特定数学表达式模型获得了移动对象的姿态信息和定位信息; 阈值计算单元,其通过使用所述误差来计算在选择所述特定数学表达式模型时用作准则的阈值的阈值候选值; 阈值确定单元,其基于所述阈值候选值来确定所述阈值; 以及基于所述阈值选择所述特定数学表达式模型的数学表达式模型选择单元。
    • 37. 发明申请
    • Traffic Information System
    • 交通信息系统
    • US20080243377A1
    • 2008-10-02
    • US12019151
    • 2008-01-24
    • Kazuya KimitaTakayoshi YokotaKoichiro Tanikoshi
    • Kazuya KimitaTakayoshi YokotaKoichiro Tanikoshi
    • G01C21/34
    • G08G1/0104G08G1/20
    • A traffic information system including a travel history database retaining the data on the travel history of vehicle measured at a constant temporal or running interval; a link cost weighting pattern database for storing patterns for weighting the link costs of road links, used in the determination of the travel paths of vehicles; a vehicle ID/link cost weighting pattern set database retaining the data representing the matching of the vehicle IDs with their associated link cost weighting patterns used to determine the travel paths of the vehicles; a link cost weighting pattern selection unit selecting the patterns for weighting the link costs used to determine the travel paths of the vehicles on the basis of the vehicle IDs; and a vehicle ID/link cost weighting pattern matching unit recording the data representing the matching of the vehicle IDs with their associated link cost weighting patterns.
    • 一种交通信息系统,其包括保持以恒定的时间或运行间隔测量的车辆的行驶历史的数据的旅行历史数据库; 链路成本加权模式数据库,用于存储用于对车辆行驶路径的确定中使用的道路链路的链路费用进行加权的模式; 车辆ID /链路成本加权模式集数据库,保存表示车辆ID的匹配的数据及其用于确定车辆的行驶路径的相关链路成本加权模式; 链路成本加权模式选择单元,基于车辆ID,选择用于加权用于确定车辆的行驶路径的链路成本的模式; 以及车辆ID /链路成本加权模式匹配单元,其将表示车辆ID的匹配的数据与其相关联的链路成本加权模式进行记录。
    • 39. 发明授权
    • Production system for an expert system
    • 专家系统的生产系统
    • US4937755A
    • 1990-06-26
    • US187590
    • 1988-04-28
    • Takayoshi YokotaKeisuke BekkiNobuhiro Hamada
    • Takayoshi YokotaKeisuke BekkiNobuhiro Hamada
    • G06F9/44G06F17/30G06F17/50G06N5/00G06N5/04
    • G06N5/046G06F17/505G06N5/003Y10S706/921
    • A production system for an expert system comprising: a production rule memory unit storing circuit conversion rules, each having a condition part describing circuit connection and an execution part describing a conversion of the condition part to an equivalent logic circuit dependent upon a predetermined semiconductor technology and further having a provisionally predetermined priority; a task data memory unit storing circuit connection data, each being subjected to an application of the circuit conversion rules; a production rule interpretation and execution unit for selecting a circuit conversion rule in accordance with the provisionally predetermined priority, collating the condition part of the selected circuit conversion rule with the circuit connection data to determine whether the condition part matches with a part of the circuit connection data and, when the both match each other, converting the part of the circuit connection data by the corresponding execution part of the circuit conversion rule to an equivalent logic circuit; further each production rule being provided with a rule flag indicating the collation failure to the circuit connection data, a rule flag memory unit for setting the rule, flag of the circuit conversion rule of which condition part did not match with any of the circuit connection data during the collation cycle, so as to inhibit collation thereafter until collation of all other circuit conversion rules is once completed, thereby increasing the operation speed of the production system for an expert system.