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1. 发明授权

US5031104A Adaptive in-vehicle route guidance system 失效
标题翻译：自适应车载导航系统
公开(公告)号：US5031104A
公开(公告)日：1991-07-09
申请号：US442782
申请日：1989-11-29
申请人： Takeo Ikeda , Masaaki Yoshii , Youichi Doi , Kunihiko Mitoh
发明人： Takeo Ikeda , Masaaki Yoshii , Youichi Doi , Kunihiko Mitoh
IPC分类号： G01C21/34
CPC分类号： G01C21/367 , G01C21/3682
摘要： An in-vehicle navigator comprises a map memory unit for memorizing road map data consisting of road data comprised of the combination of nodes and links, and background data such as buildings, a location detection unit for detecting a vehicle location, an initialization unit for inputting a destination, and route calculation conditions desired by a vehicle operator, and a route calculation unit for reading road map data containing a current location and the destination from the map memory unit. The route calculation unit also calculates a recommended route, based on the read road map data from the map memory unit and the read route computation conditions from the initialization unit. The navigator further comprises a memory unit for storing the recommended route, and a vehicle guidance unit for detecting an approach to a junction on the recommended route, based on the vehicle location. The vehicle guidance unit reads road map data containing the junction from the map memory unit, and enlarges and displays the road map containing the junction, together with the vehicle location and the recommended route.

2. 发明授权

US4807127A Vehicle location detecting system 失效
标题翻译：车辆位置检测系统
公开(公告)号：US4807127A
公开(公告)日：1989-02-21
申请号：US123362
申请日：1987-11-20
申请人： Kenji Tenmoku , Osamu Shimizu , Toshiyuki Shimizu , Kunihiko Mitoh
发明人： Kenji Tenmoku , Osamu Shimizu , Toshiyuki Shimizu , Kunihiko Mitoh
IPC分类号： G01C21/30 , G06F15/14
CPC分类号： G01C21/30
摘要： A vehicle location detecting method for detecting the location of a vehicle within a predetermined area, comprising the steps of: outputting distance data at every predetermined interval, the distance data being representative of the distance that a vehicle has traveled, outputting heading angle data at every predetermined interval, the heading angle data being representative of the heading angle change of vehicle travel, storing road map data representative of roadways, computing a present location data from the distance data and the heading angle data, and a limit error of the present location data which is determined by errors in the distance data, in the heading angle data and in the road map data, and registering locations on the roadways, which roadways are located within the limit error of the present location data, as estimate locations, computing correlation coefficients corresponding to the registered estimate locations, and selecting a correlation coefficient whose error is smallest with respect to the roadway from the computed correlation coefficients and outputting the registered estimate location corresponding to the selected correlation coefficient as a present location.
摘要翻译：一种用于在预定区域内检测车辆位置的车辆位置检测方法，包括以下步骤：以每隔预定间隔输出距离数据，所述距离数据代表车辆行进的距离，每次输出航向角数据航向角度数据代表车辆行驶的航向角度变化，存储表示道路的路线图数据，从距离数据和航向角度数据计算当前位置数据，以及当前位置数据的极限误差由道路角度数据和道路地图数据中的距离数据中的误差确定，并且将道路上的哪个道路位于当前位置数据的极限误差内的位置登记为估计位置，计算相关系数对应于注册的估计位置，并且选择其误差为的相关系数从所计算的相关系数相对于道路最小，并将与所选择的相关系数对应的登记估计位置作为当前位置输出。

3. 发明授权

US4862398A Correcting method and correcting errors in a terrestrial magnetism heading sensor 失效
标题翻译：地磁导航传感器的校正方法和校正误差
公开(公告)号：US4862398A
公开(公告)日：1989-08-29
申请号：US119966
申请日：1987-11-13
申请人： Toshiyuki Shimizu , Osamu Shimizu , Kenji Tenmoku , Kunihiko Mitoh , Yasuhiro Honoki
发明人： Toshiyuki Shimizu , Osamu Shimizu , Kenji Tenmoku , Kunihiko Mitoh , Yasuhiro Honoki
IPC分类号： G01C17/38
CPC分类号： G01C17/38
摘要： In a location detecting apparatus which detects the location of a moving body on the basis of the heading signal from a terrestrial magnetism heading sensor attached to the moving body and the rotational angle signal from a rotational angle sensor attached to the moving body, a correcting method for correcting errors in a terrestrial magnetism heading sensor, comprising the steps of: detecting the amount of a heading change of the moving body that is made when the moving body turns a curve, and detecting a magnetized amount of the moving body on the basis of the detected amount of a heading change, an output from the terrestrial magnetism heading sensor before the heading change is made and an output from the terrestrial magnetism heading sensor after the heading change is made.
摘要翻译：在根据来自安装在移动体上的地磁导向传感器的航向信号和来自安装在移动体上的旋转角度传感器的旋转角度信号的基础上检测移动体的位置的位置检测装置中，用于校正地磁行进传感器中的误差，包括以下步骤：检测当所述移动体转弯时制成的所述移动体的行进变化量，并基于所述移动体的磁化量来检测所述移动体的磁化量进行标题改变的检测量，在进行航向改变之前来自地面磁性航向传感器的输出，以及在航向改变之后来自地面磁性航向传感器的输出。

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