JP2002323330A - Traffic regulation acquisition device, route retrieval device, and traffic regulation acquiring method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To finely deal with a time traffic regulation information including regulation contents varied according to time or calendar day. SOLUTION: A control device 105 reads map data from a map data acquisition part 101, while a traffic regulation extraction part 108 judges whether there is a time traffic regulation information corresponding to every vehicle type inputted from an operation inputting part 104 or not, and if there is such information, it is extracted. The time traffic regulation information is constructed of major regulation data used in common throughout the country and minor regulation data used locally and contains day-of-month regulation data and day-of-week regulation data described in the same format. By taking a logical AND or a logical OR between the day-of-month regulation data and the day-of-week regulation data, the time traffic regulation information corresponding to every vehicle type is extracted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traffic regulation acquisition apparatus and method using a traffic regulation for a road or an intersection where traffic is restricted when searching for a route from a departure place to a destination. It relates to a search device.

[0002]

2. Description of the Related Art Hitherto, this type of route search device has been mainly used for an on-vehicle navigation device, but in recent years, a portable navigation device or a fixed navigation device installed in a drive-in or service area. It has also been used.

FIG. 9 is a block diagram showing a schematic configuration of a conventional vehicle-mounted navigation device. In FIG. 9, a direction sensor 1 detects a relative running direction of an automobile, and a vibration gyro is used. The vehicle speed sensor 2 detects a vehicle speed by generating a pulse corresponding to the number of rotations of a wheel. The various sensors 3 output ON / OFF signals of a brake switch, a parking switch, and the like, a power supply voltage monitoring signal, and the like. The sensor signal processing unit 4 processes sensor signals from the direction sensor 1, the vehicle speed sensor 2, various sensors 3, and the like. The GPS receiver 5 has a plurality of GPs.
The position (latitude, longitude) of the receiving point is obtained by receiving radio waves transmitted from the S satellite and performing arithmetic processing. The DVD-ROM drive 6 reads map data from a DVD-ROM 7, which is a recording medium on which map data is recorded. The display operation unit 8 installed in the vehicle interior has a liquid crystal display 8A that displays a map and a current traveling position, direction, and the like of the automobile, and a touch panel 8B disposed on the front surface thereof. Switches for instructing enlargement, reduction, etc., a switch for instructing a route search, a switch for selecting a destination from the place names displayed on the liquid crystal display 8A, and the like. The device body 9 includes a GPS receiver 5 and a DVD-
The ROM drive 6, the display operation unit 8, and the like are connected by a coaxial cable and arranged in a trunk room or the like.

[0004] The apparatus main body 9 has a CPU for performing various operations.
(Central processing unit) 10, a program ROM 11 which is a read-only or rewritable memory storing various arithmetic programs to be executed by the CPU 10, an azimuth sensor 1, a distance sensor 2, various sensors 3, a GPS receiver 5,
The DRAM 12 is a memory that can be written and read at any time and stores data from the CD-ROM drive 6 and the results of calculations by the CPU 10, and holds necessary data even when power supply to the apparatus main body 9 is stopped. SRAM 13 as a backup memory for storing, and a kanji / font ROM 1 as a read-only memory for storing patterns of characters and symbols displayed on the liquid crystal display 8A.
4, an image processor 15 for forming a display image based on map data, current position data of the vehicle, and the like;
A VRAM 16 which is an image memory for synthesizing map data, current position data output from the PU 10 and kanji such as town names and road names output from the kanji / font ROM 14 and fonts and displaying them on the liquid crystal display 8A;
An RGB conversion circuit 17 for converting the output data of the AM 16 into a color signal and outputting it to the liquid crystal display 8A, and controls communication between the apparatus main body 9, the display operation unit 8, the DVD-ROM drive 6, and the GPS receiver 5. A communication processor 18 for generating a predetermined voice message based on a command from the CPU 10, and a speaker 20 for outputting the generated voice message as voice.

FIG. 10 shows a format of map data stored in the DVD-ROM 7, and the format of the disc label 2 is as follows.
1, drawing parameters 22, map management information 23, map 24, route search data 25, and the like. The map leaf 24 stores background data, character data, road data, and the like, and stores data for each unit map obtained by dividing a topographic map of the whole Japan by latitude and longitude. The map 24 includes a map roughly describing a wide area and a map describing a narrow area in detail. Each figure is composed of map display levels A, B and C describing the same area. Map display levels A, B and C are B from A and C from B
Is described in more detail. Each of the map display levels A, B, and C is composed of map display level management information and a plurality of units. A unit describes a sub-region divided into multiple regions at each map display level.
Each unit includes a unit header, a character layer, a background layer, a road layer, an option layer, and the like. The text layer records place names, road names, facility names, etc. displayed on the map, the background layer records data for drawing roads, facilities, and the like, and the road layer stores roads including intersections. Data on coordinate points (notes ゛) and lines (links) to be described, such as node numbers of nodes, latitude and longitude, link numbers of links, link distances, and the like are stored. The data recorded in the road layer is not directly involved in the map display, but is used as road network information for map matching.

In the route search data 25, search data is recorded for each layer from layer 0 for a small area to layer n for a large area. The search data of each hierarchy includes node connection data 26, link cost data 27,
It is composed of route display data 28, audio data 29, and the like. The node connection data 26 is data indicating which node each of the nodes a to g, X, and Y is connected to as shown in FIG. 11. For example, the node c is connected to the nodes a, d, f, and Y. This is data indicating that the operation has been performed. The link cost data 27 indicates the link cost of the link between the nodes. For example, the link cost of the link between the node a and the node c is “5”, and the link cost between the node a and the node b is Indicates that the link cost of the link is “10”, and the link cost of the link between the nodes a and d is “20”. And
The link cost is obtained from link cost = link distance / set speed, and the set speed is set according to the road type and the road width. The route display data 28
Is data for displaying the route selected by the route search on the display map. The audio data 29 is recorded as digital data, and the audio digital data is output from the amplifier to the speaker via the D / A converter, the filter, and the like, and the audio guidance is reproduced.

Next, the operation of the conventional navigation device configured as described above will be described. In FIG. 9, outputs of the direction sensor 1, the distance sensor 2, and the various sensors 3 are sent to the CPU 10 via the sensor processing unit 4.
The CPU 10 calculates the current position of the vehicle, and obtains the latitude and longitude of the current position. The current position is corrected based on the data from the GPS receiver 5. Based on the current position thus obtained, the map data of the unit corresponding to the current position is read from the DVD-ROM 7 by the DVD-ROM drive 6, and the map data is stored in the DRAM 12 via the communication interface 18. . Part of the map data stored in the DRAM 12 is read by the CPU 10 and
At 5, the data is converted into image data and written into the VRAM 16. The image data stored in the VRAM 16 is converted into a color signal by an RGB conversion circuit 17 and the liquid crystal display 8A
And a map of a predetermined range centering on the current position is displayed. If the map data read from the DRAM 12 includes character codes and symbol codes, patterns corresponding to these character codes and symbol codes are read from the kanji / font ROM 14 and the liquid crystal display 8A
In addition to the map, characters such as place names and symbols such as schools are displayed. Also, as the vehicle travels, the liquid crystal display 8
When the map displayed on A and the current position are sequentially changed, for example, when approaching an intersection, voice guidance such as "about hundreds of meters and turn left at the intersection" is performed,
Guide the user to the destination without fail.

[0008]

However, in the above-described conventional route searching device, although traffic regulation information such as one-way traffic, prohibition of entry, and right-turn prohibition at intersections can be used, it is possible to use time or time information. Traffic regulations (hereinafter referred to as time traffic regulation information), whose regulations are changed on a calendar day, have not been responded to. The time traffic regulation information is, for example, when a school zone is set, traffic is prohibited from what time of the day to what time of day, and traffic regulations for holiday pedestrian heaven and mikoshi and floats for festivals There are regulations based on the time passed. Since these differ from region to region, it is necessary to take detailed measures, but no measures have been taken in the past.

The present invention is to solve such a conventional problem and to provide a traffic regulation acquisition device and method and a route search device which can take detailed correspondence with time traffic regulation information. Aim.

[0010]

In order to achieve the above object, the present invention provides a map data acquiring means for acquiring map data including time traffic regulation information in which regulation contents are changed at a time or a calendar day, Time calendar means for acquiring a calendar date, operation input means for inputting the vehicle type of the own vehicle, map data read from the map data acquisition means, and time traffic corresponding to the vehicle type input from the operation input means It is a traffic regulation acquisition device comprising traffic regulation extraction means for judging whether or not there is regulation information and extracting and outputting the time traffic regulation information, if any, in the time corresponding to the vehicle. Traffic regulation information can be obtained.

[0011] Further, in the traffic regulation obtaining apparatus according to the present invention, the time traffic regulation information comprises upper regulation data commonly used nationwide and lower regulation data used uniquely for each area. By distinguishing between time traffic regulation information that can be used nationwide and time traffic regulation information that is unique to each region, the capacity of the memory can be used effectively.

Further, in the traffic regulation obtaining apparatus according to the present invention, each of the regulation data has a configuration in which month and day regulation data and day of the week regulation data are described in the same format. The time and traffic regulation information corresponding to the vehicle type is extracted by taking a logical product with the day of the week regulation data, and the time when both the month and day regulation data and the day of the week regulation data are regulated is obtained. Even in the case of traffic regulation information, it is possible to prevent the data length from becoming long.

Further, the present invention provides the traffic regulation obtaining apparatus, wherein each of the regulation data has a configuration in which month and day regulation data and day of the week regulation data are described in the same format. The time and traffic regulation information corresponding to the vehicle type is extracted by taking the logical sum of the day of the week data and the day of the week restriction data. The same data structure can be used for traffic regulation information.

Further, the present invention is a route search device provided with route search means for searching for a route from a departure place to a destination using the time traffic control information extracted by the traffic control acquisition device. A route search in consideration of information can be performed.

Further, according to the present invention, the time traffic regulation information includes regulation information whose regulation content is changed at a time or a calendar day, and upper regulation data commonly used nationwide and lower regulation data used uniquely for each region. The present invention is a storage medium that can be used by a computer that stores map data including the time traffic regulation information including data, and the present invention can also be used in other devices that can reproduce the recording medium.

Further, the present invention provides the recording medium,
Each of the regulation data has a configuration in which month and day regulation data and day of the week regulation data are described in the same format, and it is possible to prevent the data length from becoming long.

Further, according to the present invention, the vehicle type of the own vehicle is inputted, and map data including time traffic regulation information in which the regulation content is changed by time or calendar day is read out, and the map data corresponding to the inputted vehicle type is read. This is a traffic regulation acquisition method that determines whether there is time traffic regulation information and extracts the time traffic regulation information corresponding to the vehicle type, if any, and acquires the time traffic regulation information corresponding to the own vehicle. be able to.

Further, in the traffic regulation obtaining method according to the present invention, the time traffic regulation information comprises upper regulation data commonly used nationwide and lower regulation data used regionally, and It is characterized by determining whether or not there is upper-level regulation data corresponding to the above, and if there is no above-mentioned restriction data, determining whether or not there is lower-level regulation data. By discriminating between the regulation information and the time traffic regulation information used for each region, the capacity of the memory can be used effectively.

Further, the present invention provides the traffic regulation obtaining method, wherein each of the regulation data has a configuration in which month-day regulation data and day-of-week regulation data are described in the same format. The time and traffic regulation information corresponding to the vehicle type is extracted by taking the logical product of the day of the week data and the day of the week regulation data. Even in the case of traffic regulation information, it is possible to prevent the data length from becoming long.

Further, the present invention provides the traffic regulation obtaining method, wherein each of the regulation data has a structure in which month and day regulation data and day of the week regulation data are described in the same format. The time and traffic regulation information corresponding to the vehicle type is extracted by taking the logical sum of the day of the week data and the day of the week restriction data. The same data structure can be used for traffic regulation information.

Further, the present invention is a program in which the traffic regulation obtaining method is realized by software that can be used by a computer, and a recording medium that can be used by a computer that records the program. The invention can be used with other possible devices.

[0022]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a configuration of an on-vehicle navigation device including a traffic regulation acquisition device and a route search device according to an embodiment of the present invention. In FIG. 1, a map data acquisition unit 101 includes a CD-ROM or a DVD.
A drive device for reading map data from a storage medium such as a ROM; This may be a communication device that downloads map data from an external server. The current position detection unit 102 includes a vehicle speed sensor, a direction sensor, and a GPS.
The present position of the vehicle is detected based on a signal from the receiver. The liquid crystal display unit 103 displays a road map corresponding to the detected current position together with the current position of the vehicle and a guide route, and may be a display device such as an organic EL panel. The operation input unit 104 is a touch panel or a remote controller for inputting and setting a destination, own vehicle type (vehicle type) information, and other various instructions. The control device 105 is a microcomputer that controls the entire device. Storage unit 10
Reference numeral 6 stores map data and work data.
Hard disk, ROM, RAM, flash memory,
A recording medium such as a memory card is appropriately used. The route search unit 107 searches for a guide route from a departure place to a destination, as described in the related art. The traffic regulation extraction unit 108 reads the map data from the map data acquisition unit 101, determines whether there is time traffic regulation information corresponding to the vehicle type input from the operation input unit 104, and in a case where there is, It is to extract it. The route searching unit 107 and the traffic regulation extracting unit 108 are realized by software. The timekeeping calendar unit 109 is a GP
The time and calendar date are output based on the time information received from the S satellite. The voice guidance unit 110 includes a voice processor and a speaker, and outputs voice data stored in the storage unit 106 as voice.

Since the overall operation of the navigation device configured as described above is the same as that of the above-described conventional example, the traffic regulation extraction unit 10 will be described below under the control of the control device 105.
8 and the route search operation performed by the route search unit 107 will be described with reference to FIGS. FIG. 2 shows the data structure of map data in the present embodiment, which is basically the same as the conventional example shown in FIG. 9, except that the time traffic regulation information is divided into upper regulation data and lower regulation data. Is different. In FIG. 2, all data management information 111 manages where and what data is stored, and upper-level regulation information data 112 stores time traffic regulation information commonly used throughout the country.
It corresponds to each map figure leaf data 113,114,115. Each of the leaf data 113, 114, and 115 includes a road layer 116, a character / symbol layer 117, and a background layer 118.
The road layer 116 stores data for route calculation, in which lower-level regulation information data 119 describing time-specific traffic regulation information specific to an area is included, and the character / symbol layer 117 is used for route guidance. The background layer 118 stores data for map display.

FIG. 3 shows the data structure of the time traffic regulation information in the present embodiment, and the upper regulation data and the lower regulation data have the same data structure. FIG. 3 (a)
Indicates month and day regulation data, which includes vehicle type 121, month and day / day of week regulation identifier 122, start month and day, end month and day 124, and time zone 125. The vehicle type 121 is classified into a large car, a small car, an ordinary car, and a special car. 3 (a)
Is the date regulation data, so the date is specified. FIG.
(B) shows day-of-week regulation data, which is composed of data of a vehicle type 131, a month / day / day-of-week regulation identifier 132, holidays / Sun-Sat 133, and a time zone 134. The vehicle type 131 is also classified into a large car, a small car, an ordinary car, and a special car, and the month / day / day of the week regulation identifier 132 is data for identifying whether to designate a month or a day. FIG.
Since (b) is the day of the week restriction data, the day of the week is designated. FIG. 3C shows a description example of the AND regulation when the time traffic regulation information is set to both month and day and day of the week, and the date regulation data of FIG. 3A and FIG. The AND (logical product) of the day of week regulation data is taken. AND
Is defined as AND when the vehicle type 131 data in the day-of-week restriction data in FIG. 3B is designated as “zero type”. FIG. 3D shows a description example of the OR regulation when the time traffic regulation information is set to one of month, day, and day of the week, and FIG.
Of the day and night regulation data of FIG. 3B and the day of the week regulation data of FIG.
(Logical sum). As described above, the month and day regulation data and the day of the week regulation data have the same data structure, and by taking the AND or OR thereof, different contents can be described while preventing the data length from becoming long. I have.

Next, a process of acquiring time traffic regulation information according to the present embodiment will be described with reference to FIG. First, the current time is obtained from the timekeeping calendar unit 109.
(Step S101) Then, the vehicle type of the own vehicle input from the operation input unit 104 and stored in the storage unit 106 is obtained (Step S102). Next, after performing the upper regulation / lower regulation determination processing as shown in FIG. 5 described later (step S103), it is determined whether or not there is regulation (step S104). The control information to be performed is obtained (step S105). When there is a plurality of pieces of acquired traffic regulation information, first, the OR regulation determination processing of FIG. 6 is performed (step S107), and then the AND of FIG.
A regulation determination process is performed (step S108). As a result, if there is regulation information corresponding to the current time (step S
109), it is finally determined that there is regulation (step S1)
10). In step S109, a more accurate determination is made by predicting the time at which the host vehicle will pass a road or an intersection with time traffic regulation information and determining whether or not the passage time has regulation information. Can be. If there is no plurality of regulation information in step S106, an AND regulation determination process is performed in step S111. If there is no regulation in steps S104 and S109, it is finally determined in step S112 that there is no regulation.

FIG. 5 shows the upper regulation / lower regulation judgment processing. First, it is determined whether or not the upper-level regulation information data 112 is included in the map data read from the map data acquisition unit 101 as shown in FIG. 2 (step S121).
In some cases, it is determined whether or not the high-level control information data 112 includes high-level control information corresponding to the vehicle (step S122). In some cases, it is determined that there is high-level control information to be processed. (Step S123).
If there is no higher-level regulation information data 112 in step S121 or if the relevant higher-level regulation information is not included in the own vehicle in step S122, the lower-level regulation information data 1
It is determined whether or not there is a lower control information 19 (step S124). If so, it is determined whether or not the lower control information data 119 includes lower control information corresponding to the vehicle (step S125). If there is, it is determined that there is lower-level regulation information to be processed (step S126). If “NO” in steps S124 and S125, it is determined that there is no regulation to be processed (step S127).

FIG. 6 shows a process of extracting the time traffic regulation information by the OR regulation determination process. Traffic regulation extractor 1
08, when it is determined that there is a regulation to be processed by the processing of FIG. 5, the first one is obtained from the traffic regulation information in which (c) and (d) of FIG. 3 are continuous (step S13).
1). Next, it is determined whether or not the vehicle type data in the obtained regulation information matches the own vehicle type (step S13).
2) If they match, it is checked whether the current time (or passing time) is within the regulation time (step S133). If it is within the regulation time, the flag indicating that the traffic regulation information is present is turned on (step S134), and after all of the above processing is performed for the number of the regulation information (step S135), it is determined that the traffic regulation information exists. Is on,
Finally, it is determined that there is regulation (step S136). If “NO” in steps S132 and S133, it is determined that there is no regulation (step S137).

FIG. 7 shows a process for extracting the time traffic regulation information by the AND regulation judging process. When it is determined that there is a regulation to be processed by the processing of FIG. 5, the traffic regulation extraction unit 108 acquires the first traffic regulation information from the continuous traffic regulation information of (c) and (d) of FIG. 3 ( Step S14
1). Next, it is determined whether or not the vehicle type data in the obtained regulation information matches the vehicle type of the vehicle (step S14).
2) If they match, it is checked whether the current time (or passing time) is within the regulation time (step S143), and if it is within the regulation time, a flag indicating that traffic regulation information is present is turned on (step S144). ), And obtain the next regulation information (step S145). Next, it is checked whether or not the vehicle type data in the obtained regulation information is of the zero type (step S146). A check is made (step S149), and if it is within the regulation time, a flag indicating that traffic regulation information is present is turned on (step S15).
0), returning to step S145 to repeat the same processing. After all of the above processes are performed for the number of pieces of regulation information (step S147), if the flag indicating that the traffic regulation information exists is on, it is finally determined that there is regulation (step S148). . Step S142,
If “NO” in S143 and S150, it is determined that there is no regulation (step S150A).

FIG. 8 shows a route search process using the traffic regulation acquisition method described above. First, the route search unit 107
The current position of the vehicle detected by the current position detection unit 102 is set as the departure point, the position input by the operation input unit 104 is set as the destination, and map data necessary for the search is read from the map data acquisition unit 101 and stored in the storage unit. The node closest to the departure place is selected as the departure node and the node closest to the destination is selected as the destination node, and the arrival cost is set to 0 and stored in the storage unit 106 (step S151). Next, the departure node is set as a candidate state (step S152).
The node having the lowest arrival cost is set as a reference node (step S153). Next, it is checked whether or not the reference node is a target node (step S154). If the reference node is not the target node, it is checked whether all links connected to the reference node have been checked (step S155). If all links have been checked, the process returns to step 153 to search for the next reference node. If there is an uninvestigated link, one of the uninvestigated links is set as an investigation target link (step S156). next,
The above-described traffic regulation acquisition process is performed (step S15).
7) It is determined whether there is a traffic regulation (step S1).
58) If there is traffic regulation, the process returns to step S155. If there is no traffic regulation, the cost of the survey target link is added to the arrival cost to the reference node, and the opposite side of the reference node connected to the survey link is added. Node (destination node)
(Step S159). next,
It is determined whether the arrival at the destination node is the first time or whether the new arrival cost is the smallest among the arrival costs so far (step S160). If “no”, the process returns to step S155, and “ If "yes", the destination node is set to the candidate state, and further, as the intermediate data for search, the link to be searched for the destination node is set as the previous link,
After recording the new arrival cost as the arrival cost in the storage unit 106 (step S160A), the process returns to step S155,
The above processing is repeated, and when the reference node reaches the target node in step S154, the route search processing ends.

As described above, according to the present embodiment, the traffic regulation acquisition device is provided with a map data acquisition unit 101 for acquiring map data including time traffic regulation information in which regulation content is changed by time or calendar day. , A time / calendar unit 109 for acquiring time and calendar date, an operation input unit 104 for inputting the vehicle type of the vehicle, and a map data read from the map data acquisition unit 101, and a vehicle type input from the operation input unit 104 It is determined whether there is time traffic regulation information corresponding to the traffic regulation, and if so, the traffic regulation extraction unit 1 that extracts it.
08, a control device 105 for controlling the whole, and a storage unit 106 for storing data. The route search device is further configured by adding a current position detection unit 102 and a route search unit 107, and the whole is voice guided. Since the system is configured as an in-vehicle navigation device by adding the unit 110, it is possible to obtain time traffic regulation information corresponding to the own vehicle and to use the information to search for a guidance route, thereby performing reliable route guidance without waste. Can be.

In the above embodiment, month and day regulation data and day of week regulation data have been described as regulation data.
Combining weekly regulation data such as week or second week, it is possible to handle traffic regulation information such as what day of the week from what month to what month, and to handle regulation data etc. the day before holidays Can also.

[0032]

As described above, the vehicle type of the own vehicle is inputted, and the map data including the time traffic regulation information in which the regulation content is changed by time or calendar day is read, and the map data corresponding to the inputted vehicle type is read. It is determined whether there is time traffic regulation information that has been obtained, and if there is time traffic regulation information corresponding to the vehicle type, it is extracted and output, and the time traffic regulation information corresponding to the own vehicle is obtained. be able to.

Further, according to the present invention, whether the time traffic regulation information is composed of upper regulation data commonly used nationwide and lower regulation data used regionally, and whether there is upper regulation data corresponding to the vehicle type It is characterized by judging whether or not there is lower-level control data when there is no above-mentioned restriction data. By distinguishing from the time traffic regulation information, the capacity of the memory can be used effectively.

Further, according to the present invention, each regulation data has a configuration in which month-day regulation data and day-of-week regulation data are described in the same format, and a logical product of the month-day regulation data and the day-of-week regulation data is obtained. Thus, the time traffic regulation information according to the vehicle type is extracted, and even in the case of the time traffic regulation information in which both the date regulation data and the day regulation data are regulated, the data length is long. Can be prevented.

Further, according to the present invention, each regulation data has a configuration in which the date regulation data and the day regulation data are described in the same format, and the logical sum of the month regulation data and the day regulation data is obtained. Thus, the time traffic regulation information according to the vehicle type is extracted, and even if the time traffic regulation information in which one of the month and day regulation data and the day of the week regulation data is regulated, the same data structure is used. Can be described.

Further, the present invention searches for a route from a departure point to a destination using time traffic regulation information extracted by a traffic regulation acquisition device, and performs a route search in consideration of the time traffic regulation information. Can be.

Further, the present invention is a program in which the above-mentioned map data or the above-mentioned traffic regulation obtaining method is realized by software which can be used by a computer, and a recording medium which can be used by a computer which records the program. The present invention can also be used in other devices that can reproduce the data.

[Brief description of the drawings]

FIG. 1 is a schematic block diagram illustrating a configuration of an on-vehicle navigation device including a traffic regulation acquisition device and a route search and guidance device according to an embodiment of the present invention.

FIG. 2 is a data structure diagram of map data including traffic regulation information according to the embodiment of the present invention.

FIG. 3 is a data structure diagram of traffic regulation information according to the embodiment of the present invention.

FIG. 4 is a flowchart showing a traffic regulation acquisition process according to the embodiment of the present invention.

FIG. 5 is a flowchart showing a high-order regulation / low-order regulation determination process in the traffic regulation acquisition process according to the embodiment of the present invention.

FIG. 6 is a flowchart showing OR regulation determination processing in traffic regulation acquisition processing according to the embodiment of the present invention.

FIG. 7 is a flowchart showing an AND regulation determination process in the traffic regulation acquisition process according to the embodiment of the present invention.

FIG. 8 is a flowchart showing a route search process according to the embodiment of the present invention.

FIG. 9 is a block diagram showing a configuration of a conventional navigation device.

FIG. 10 is a schematic diagram showing a configuration of map data in a conventional navigation device.

FIG. 11 is a schematic diagram showing node connection data in a route search process of a conventional navigation device.

[Explanation of symbols]

 Reference Signs List 101 Map data acquisition unit 102 Current position detection unit 103 Liquid crystal display unit 104 Operation input unit 105 Control unit 106 Storage unit 107 Route search unit 108 Traffic regulation extraction unit 109 Clock calendar unit 110 Voice guidance unit

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G09B 29/00 G09B 29/00 F 29/10 29/10 A (71) Applicant 000004260 DENSO Corporation Aichi 1-12-1 Showa-cho, Kariya-shi (71) Applicant 000237592 Fujitsu Ten Co., Ltd. 1-2-28, Goshodori, Hyogo-ku, Kobe-shi, Hyogo (72) Inventor Kenki Matsuda 4-chome Tsunashima-higashi, Kohoku-ku, Yokohama, Kanagawa No. 3 1 Matsushita Communication Industrial Co., Ltd. (72) Inventor Hidenobu Suzuki 1 Toyota Town, Toyota City, Aichi Prefecture Inside Toyota Motor Corporation (72) Inventor Yukihiro Nagata 6-18 Okamachi Harayama, Okazaki City, Aichi Prefecture Inside AW Co., Ltd. (72) Inventor Mamoru Kainuma 6-18 Okamachi Harayama, Okazaki City, Aichi Prefecture Inside Aisin AW Co., Ltd. (72) Invention Hidemasa Yamauchi 1-1-1, Showa-cho, Kariya, Aichi Prefecture Inside DENSO Corporation (72) Inventor Jun Atsushi Ichimura 1-2-28 Goshodori, Hyogo-ku, Kobe City, Hyogo Prefecture Inside Fujitsu Ten Co., Ltd. (72) Inventor Masatsugu Uemura F-term (reference) 2-2-28 Goshodori, Hyogo-ku, Hyogo-ku, Hyogo Prefecture 2C032 HB02 HB22 HC08 HC14 HC15 HC31 HD03 HD21 2F029 AA02 AB01 AB07 AC02 AC09 AC14 AC18 5B075 ND20 UU16 5H180 AA01BB12 BB15 CC12 FF04 FF05 FF23 FF25 FF27 FF33 FF35

Claims (13)

[Claims] 1. Map data acquisition means for acquiring map data including time traffic regulation information in which regulation content is changed by time or calendar date, timekeeping calendar means for acquiring time and calendar date, vehicle type of own vehicle And inputting map data from the map data obtaining means, and determining whether there is time traffic regulation information corresponding to the vehicle type input from the operation input means. A traffic regulation acquisition device comprising: traffic regulation extraction means for extracting and outputting regulation information, if any. 2. The traffic regulation acquisition device according to claim 1, wherein the time traffic regulation information comprises upper regulation data used commonly throughout the country and lower regulation data used uniquely for each region. 3. Each of the regulation data has a configuration in which month-day regulation data and day-of-week regulation data are described in the same format, and by taking a logical product of the month-day regulation data and the day-of-week regulation data. 3. The traffic regulation acquisition device according to claim 1, wherein time traffic regulation information corresponding to the vehicle type is extracted. 4. Each of the regulation data has a configuration in which month-day regulation data and day-of-week regulation data are described in the same format, and by performing a logical sum of the month-day regulation data and the day-of-week regulation data. And extracting time traffic regulation information according to the vehicle type.
The traffic regulation acquisition device according to any one of the above. 5. A route search device comprising route search means for searching for a route from a departure place to a destination using the time traffic control information extracted by the traffic control acquisition device according to claim 1. . 6. The time traffic regulation information includes regulation information whose regulation content is changed by time or calendar date, and is composed of upper regulation data used nationwide and lower regulation data used regionally. A storage medium usable by a computer that stores the map data including the time traffic regulation information. 7. The storage medium according to claim 6, wherein each of the restriction data has a configuration in which month and day restriction data and day of the week restriction data are described in the same format. 8. A vehicle type of the own vehicle is inputted, map data including time traffic regulation information in which regulation content is changed by time or calendar day is read, and time traffic regulation information corresponding to the inputted vehicle type is read. A traffic regulation acquisition method for determining whether there is a traffic regulation, and extracting time traffic regulation information corresponding to the vehicle type, if any. 9. The time traffic regulation information includes upper regulation data used nationwide and lower regulation data used regionally, and whether there is upper regulation data corresponding to the vehicle type. 9. The traffic regulation acquisition method according to claim 8, wherein if there is no such regulation data, it is determined whether or not there is lower-order regulation data. 10. Each of the regulation data has a configuration in which month-day regulation data and day-of-week regulation data are described in the same format, and by taking a logical product of the month-day regulation data and the day-of-week regulation data. 10. The traffic regulation acquisition method according to claim 8, wherein time traffic regulation information according to the vehicle type is extracted. 11. Each of the regulation data has a configuration in which month and day regulation data and day of the week regulation data are described in the same format, and a logical OR of the month and day regulation data and the day of the week regulation data is obtained. 11. The traffic regulation obtaining method according to claim 8, wherein time traffic regulation information corresponding to the vehicle type is extracted. 12. A program that implements the traffic regulation acquisition method according to claim 8 by software that can be used by a computer. 13. A computer-usable recording medium on which the program according to claim 12 is recorded.