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公开(公告)号：EP0346492B1
公开(公告)日：1995-05-03
申请号：EP89900884.1
申请日：1988-12-23
CPC分类号： G08G1/096827 , G01C21/3446 , G08G1/0969
摘要： In a navigation system which sets a route from a designated starting point to a destination and guides a car along the route, node data (3) consisting of position data and its attributes, crossing data (1) consisting of data on crossings and road data (2) consisting of data on roads are provided as map data used for route search. Data on the road between crossings and the data on the starting point and end point of road and crossing are obtained from the crossing data (1) and the road data (2) and an optimum route is searched by comparing each route in a route search unit (4). The map data has a hierarchical structure. Branch line networks are developed in an upper hierarchy connected to a trunk road network and divided into blocks and searching of crossings connected to road networks in lower hierarchy to upper hierarchy is performed sequentially and repeatedly. In this manner, processing can be made while the range of search is being limited and search processing can be speed up. In addition, a work area necessary for searching can be reduced and memory area can be saved.
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公开(公告)号：EP0346491A1
公开(公告)日：1989-12-20
申请号：EP89900882.5
申请日：1988-12-23
发明人： MOROTO, Shuzo , YOKOYAMA, Shoji , NIMURA, Mitsuhiro , NANBA, Akimasa , YAMADA, Takashi , SUMIYA, Koji
IPC分类号： G01C21/00
CPC分类号： G01C21/367 , G01C21/3673 , G01C21/3682
摘要： A display unit of a navigation system in accordance with the present invention is equipped with route search means (13) for searching an optimum route on the basis of position data, node data (21), crossing data (19) and road data (23) and reduced scale setting means (15), sets a reduced scale of a display map in accordance with the distance between the present position and the destination and selectively displays a road to be displayed in accordance with the reduced scale on a display (31). This invention includes also a display (48) for displaying a crossing graphics consisting of a starting crossing, a neighbouring road network and landmarks and touch keys (35) such as a decision key for drawing a travelling direction on the displayed crossing graphics, a rotation support key for rotating the crossing graphics and displaying it, and the like. The invention is further equipped with a data processing control unit (46) for reading the position coordinates of a crossing landmark to be displayed from a map data (53), rotating and enlarging the position coordinates, converting them to the coordinates of a drawing area set.in the display means and sending an output signal so that the crossing landmark pattern is drawn in this converted coordinates.
摘要翻译： 基于位置数据，节点数据，交叉数据和道路数据搜索最佳路线。 根据当前位置和目的地之间的距离来设置显示地图的缩小比例，并且根据路径选择性地显示。 显示一个十字图形，其包括起始横穿，相邻道路网络和地标，以及诸如用于在所显示的交叉图形上绘制行进方向的决定键的触摸键，用于旋转交叉图形并显示它的旋转支持键。 数据处理控制单元将位置坐标转换为在显示器中设置的绘制区域的坐标，并发送输出信号，使得在该转换的坐标中绘制交叉界标图案。
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公开(公告)号：EP0380673A1
公开(公告)日：1990-08-08
申请号：EP89900883.3
申请日：1988-12-23
IPC分类号： G01C21/20
摘要： Route searching (35) to the destination is performed by use of a road data (26) having each crossing data and road data and by inputting the destination to generate navigation data (27) and a course to the destination is directed while the present position is being traced (37). A course guide to the end crossing of the present position road is output by use of data on travelling guide from each crossing to the destination obtained via route searching (35) from the road network data (26). At a crossing, the present position is traced on a travelling direction road which has been recognized by a present position trace means (37) and the end crossing of that road is recognized. Recognition of a travelling direction is made at the end crossing of a road between crossings and the road in the travelling direction is used as the present position road to output a guide to the next end crossing and this procedure is repeated at each crossing up to the destination and course guiding is thus performed. In route searching, a travelling road to the destination is set for each crossing. Therefore, course guiding to the destination from the end crossing of a travelling road can be conducted by recognizing a crossing and its travelling road.
摘要翻译： 通过使用具有每个交叉数据和道路数据的道路数据（26）并且通过输入目的地以生成导航数据（27）来执行到目的地的路线搜索（35），并且到目的地的路线指向当前位置 正在追踪（37）。 利用从道路网络数据（26）经由路径搜索（35）获得的从每个十字路口到目的地的行驶指南的数据，输出当前位置道路的结尾路线的路线指南。 在十字路口上，在当前位置追踪装置（37）已识别的行进方向道路上追踪当前位置，并识别该道路的终点。 行驶方向的识别是在交叉口之间的道路的末端交叉口处进行的，并且行驶方向上的道路被用作当前位置道路以输出到下一个交叉口的导向装置，并且在到达 目的地和课程指导因此被执行。 在路线搜索中，为每个路口设置到达目的地的旅行道路。 因此，可以通过识别道口及其行驶道路来进行从行驶道路的终点穿越到目的地的路线。
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公开(公告)号：EP0348528A1
公开(公告)日：1990-01-03
申请号：EP89900881.7
申请日：1988-12-23
CPC分类号： G01C21/34
摘要： This invention relates to a vehicle navigation system including an input device (1), a CPU (2)- a display (3) and a storage device (4). The storage device (4) is a CD-ROM or the like for stonng the network data and information of each point as the destination or the present position and map data (10), a crossing list (11). a destination list (12), road data (13), a place name list (14). etc.. are stored therein. When the destination is inputted and designated by the input means (1), the CPU (2) interacts with a program stored in a ROM (9a) in order to set data for reaching the destination by means of the retrieval of a route corresponding to each point stored in the storage device (4) and stores it in memory such as a RAM (9b). In an embodiment. a non-volatile area for storing the starting point data (the east longitude. the north latitude, etc.) is disposed in the RAM (9b) and when data is inputted by a reset switch at the time of the inputting of the starting point, data in this non-volatile area can be rewritten. The data thus written is held until the reset switch is pressed again to input a location position and is not erased even when an ignition switch is turned off.
摘要翻译： 本发明涉及包括输入装置（1），CPU（2），显示器（3）和存储装置（4）的车辆导航系统。 存储装置（4）是用于存储网络数据和每个点的信息作为目的地或当前位置的CD-ROM等，以及地图数据（10），交叉表（11），目的地列表（12） ），道路数据（13），地名列表（14）等。 当目的地由输入装置（1）输入并指定时，CPU（2）与存储在ROM（9a）中的程序相互作用，以便通过检索对应于 每个点存储在存储设备（4）中并将其存储在诸如RAM（9b）的存储器中。 在一个实施例中，用于存储起始点数据（东经，北纬等）的非易失性区域被布置在RAM（9b）中，并且当输入时由复位开关输入数据时 的起始点，可以重写这个非易失性区域的数据。 如此写入的数据被保持直到再次按下复位开关以输入位置位置，并且即使当开关断开时也不被擦除。
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公开(公告)号：EP0346492A1
公开(公告)日：1989-12-20
申请号：EP89900884.1
申请日：1988-12-23
CPC分类号： G08G1/096827 , G01C21/3446 , G08G1/0969
摘要： in a navigation system which sets a route from a designated starting point to a destination and guides a car along the route, node data (3) consisting of position data and its attributes, crossing data (1) consisting of data on crossings and road data (2) consisting of data on roads are provided as map data used for route search. Data on the road between crossings and the data on the starting point and end point of road and crossing are obtained from the crossing data (1) and the road data (2) and an optimum route is searched by comparing each route in a route search unit (4). The map data has a hierarchical structure. Branch line networks are developed in an upper hierarchy connected to a trunk road network and divided into blocks and searching of crossings connected to road networks in lower hierarchy to upper hierarchy is performed sequentially and repeatedly. In this manner, processing can be made while the range of search is being limited and search processing can be sped up. In addition, a work area necessary for searching can be reduced and memory area can be saved.
摘要翻译： 在用于设定从指定出发点到目的地的路线并沿着路线提供指导的导航装置中，作为在路线探索中使用的地图数据，提供了节点数据。 15（b）]包括位置信息和与其属性有关的信息，交叉路口数据。 图2-5（b）， 15（b）]包括与交叉口有关的信息，以及道路数据。 如图2-5（a）所示， 15（c）]包括与道路相关的信息。 从交叉点数据和道路数据获得作为道路的起点和终点的交叉路口和交叉点之间的道路等信息，通过比较路线来检索最优路线。 将地图数据作为分层结构的形式，如图1所示。 如图1所示，在相对于主干道路网的高层（1）连接到主干道路网的上层（2）中开发分支路网，进行块划分，并且从较低层 连续重复连接到高层的道路网络的交叉点的顺序层。 上述可以在限制勘探范围的情况下进行处理，并且提高勘探处理的速度。 此外，可以减少勘探所需的工作区域，并可以节省存储数据。
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6.发明授权
公开(公告)号：EP2260266B1
公开(公告)日：2016-05-04
申请号：EP09727659.6
申请日：2009-02-26
申请人： Aisin AW Co., Ltd.
发明人： NIMURA, Mitsuhiro , SAKAMOTO, Tatsumi , HIYOKAWA, Toyoji , MASUDA, Hiroyoshi , SHIBATA, Tomofumi , HIRAKAWA, Kazuyuki , YAMAZAKI, Atsushi , HYAKUSAWA, Masahiro , TAKAHASHI, Masahiro
IPC分类号： G01C21/32
CPC分类号： G01C21/32
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7.发明公开
公开(公告)号：EP2260266A1
公开(公告)日：2010-12-15
申请号：EP09727659.6
申请日：2009-02-26
申请人： Aisin AW Co., Ltd.
发明人： NIMURA, Mitsuhiro , SAKAMOTO, Tatsumi , HIYOKAWA, Toyoji , MASUDA, Hiroyoshi , SHIBATA, Tomofumi , HIRAKAWA, Kazuyuki , YAMAZAKI, Atsushi , HYAKUSAWA, Masahiro , TAKAHASHI, Masahiro
IPC分类号： G01C21/32
CPC分类号： G01C21/32
摘要： A map updating system includes: an update processing unit for performing update processing by reading data required in the update processing from a cache area of a memory when the data are stored in the cache area and from a map database when the data are not stored in the cache area; a cache storage unit for storing the data read by the update processing unit in the cache area; a processing memory capacity determination unit for determining a processing memory capacity, which is a capacity of the memory required as an update processing area, on the basis of the content of map data to be subjected to the update processing; and a cache capacity determination unit for determining a cache capacity, which is a capacity of the memory allocated to the cache area, on the basis of the processing memory capacity.
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