WO2008041705A1

WO2008041705A1 - Navigation system and landmark display method

Info

Publication number: WO2008041705A1
Application number: PCT/JP2007/069292
Authority: WO
Inventors: Atsushi Tsurumi; Kunihiro Suga; Sayuri Yukizaki; Haruki Kuzuoka
Original assignee: Kabushiki Kaisha Kenwood
Priority date: 2006-10-03
Filing date: 2007-10-02
Publication date: 2008-04-10
Also published as: JP5028936B2; JP2008089443A

Abstract

Route extraction means (134) of a navigation system (1) extracts attribute information unique to a route correlated to a read position of a printed matter (5) by a mobile input device (4) by using a route conversion table (82). Landmark extraction means (134) extracts attribute information on the landmark correlated to the attribute information unique to the extracted route by using a landmark table (83). Display means (66) displays the landmark extracted by the landmark extraction means (134) together with the route by using the latitude/longitude data on the landmark. Thus, it is possible to display a landmark such as a convenience store built recently on a screen based on the navigation data.

Description

Specification

NAVIGATION SYSTEM AND LANDMARK DISPLAY METHOD TECHNICAL FIELD

The present invention relates to a navigation system and a landmark display method.

Background art

[0002] Patent Document 1 discloses a navigation device. This navigation device has a memory realized by a compact disc read only memory (abbreviated as CD-ROM). The navigation device reads map data from the memory and displays it.

Patent Document 1: Japanese Patent Application Laid-Open No. 2001-74481 (summary, paragraph 0033, etc.)

Disclosure of the invention

Problems to be solved by the invention

[0004] The navigation system stores navigation data such as map data on a CD-ROM or the like. This navigation data is updated once every few years, at most once a year, or once every six months.

[0005] Therefore, when the user is route-guided by the navigation system, landmarks such as convenience stores are lost, or landmarks such as new convenience stores are built. Convenience stores and landmarks such as gas stations tend to change relatively frequently (opening, relocation, closing, etc.), unlike landmarks that are map symbols such as shrines and schools. In redevelopment areas, etc., multiple landmarks may be replaced at once.

[0006] For this reason, for example, in an unfamiliar area or a route where the line of sight is not clear, the user can move while checking the current position based on the landmark or the like. Doing so may cause you to lose sight of your current position or to lose your guidance route. In addition, the user may set a landmark such as a convenience store that does not exist as a destination or stopover, or may set a landmark that actually exists and is originally intended to be set as a destination or stopover. It may not be possible. The present invention relates to a navigation system and a landmark display method capable of displaying a landmark such as a recently built convenience store without waiting for an update of navigation data on a screen based on the navigation data. Means for solving the problems

[0008] A navigation system according to the present invention is a navigation system having navigation data of routes and landmarks. This navigation system has a portable input device that reads a printed matter on which a pattern that can be read by the portable input device is printed together with a printed content related to a route such as a road, and a reading position that overlaps the printed content in the printed matter. Using a route conversion table that stores attribute information unique to the route in association with each other, route extraction means for extracting attribute information unique to the route associated with the reading position by the portable input device, and a route in the route conversion table Using a landmark table that stores multiple attribute information including at least latitude and longitude data of multiple landmarks in association with unique information, the landmarks associated with the unique attribute information for the extracted route Landmark extraction means for extracting attribute information, and route extraction means using navigation data When displaying the route, having a landmark extracted by the landmark extraction hand stage, using the latitude and longitude data of the landmarks, and display means for displaying together with the route, the.

[0009] Another navigation system according to the present invention is a navigation system having route and landmark navigation data. This navigation system has a portable input device that reads a printed matter on which a pattern that can be read by the portable input device is printed along with a print content related to a route such as a road, and a reading position that overlaps a print content in the printed matter. Using a route conversion table that stores attribute information unique to the route in association with each other, route extraction means for extracting attribute information unique to the route associated with the reading position by the portable input device, and a route in the route conversion table Landmark attributes that are associated with unique attribute information for the extracted route using a landmark table that stores multiple attribute information including at least latitude and longitude data of multiple landmarks in association with unique information Landmark extraction means for extracting information, Storage means for storing information about landmarks extracted from the queue table, and when displaying the route extracted by the route extraction means using the navigation data when confirming the guidance route or during route guidance. Display means for displaying the landmark in which the attribute information is stored in the means together with the route using the latitude and longitude data of the landmark.

[0010] The navigation system according to the present invention has the following features in addition to the components of the above-described invention. That is, the portable input device reads the classification mark of the land mark attribute information printed on the printed matter. The landmark extracting means is a landmark associated with the attribute information unique to the route extracted by the route extracting means and is classified into the classification of the classification mark read by the portable input device. Extracts mark attribute information.

The navigation system according to the present invention has the following features in addition to the components of the above-described invention. That is, a plurality of coordinate patterns that can be converted into different coordinate values for each position in the paper are printed on the printed matter as a pattern that can be read by the portable input device. The portable input device generates trajectory data with a plurality of coordinate values converted from the plurality of read coordinate patterns. The attribute information specific to the route in the route conversion table is associated with the coordinate values of a plurality of coordinate patterns printed on the printed material so as to overlap the route. Further, the landmark extracting means compares the plurality of coordinate values of the trajectory data generated by the portable input device with the coordinate values of the plurality of coordinate patterns for each route stored in the route conversion table. Attribute information specific to the path associated with the reading position by the input device is extracted.

[0012] The navigation system according to the present invention has the following features in addition to the components of the above-described invention. In other words, the classification mark of the landmark attribute information printed on the printed material is printed so as to overlap with the plurality of coordinate patterns and not to overlap the paper area on which the route is printed. The landmark extraction means, when the coordinate value of the coordinate pattern within the range overlapping the classification mark of the landmark attribute information is obtained from the reading data generated by the portable input device, the attribute information belonging to the classification mark classification To extract.

The navigation system according to the present invention includes the following components in addition to the components of the invention described above. It has characteristics. That is, the route extracting means, the landmark extracting means, and the display means are provided in the navigation body. The portable input device is connected to the navigation main body via a communication cable or wirelessly communicates with the navigation main body, thereby transmitting the trajectory data obtained by reading the printed matter to the route extracting means.

The navigation system according to the present invention has the following features in addition to the components of the above-described invention. That is, the display means displays the landmark extracted by the landmark extraction means without displaying the landmark included in the navigation data within a predetermined range from the route extracted by the route extraction means.

The navigation system according to the present invention has the following features in addition to the above-described components of the invention. In other words, the display means displays the landmarks extracted by the landmark extraction means so as to be selectable as a departure place, a stopover place, or a destination place in the navigation system.

[0016] The landmark display method according to the present invention includes a step of reading a printed matter on which a pattern readable by a portable input device is printed together with a printed matter relating to a route such as a road, and a printed matter in the printed matter. A step of extracting attribute information specific to the route associated with the reading position by the portable input device using a route conversion table storing attribute information unique to the route in association with the overlapping reading position; A landmark table that stores a plurality of attribute information including at least latitude and longitude data that can be used in the navigation system for a plurality of landmarks associated with information specific to a route in Along with the steps to extract the landmark attribute information associated with the unique attribute information and the extracted route, Landmark issued, and has a step of displaying by using the respective latitude and longitude data.

The invention's effect

In the present invention, landmarks such as recently built convenience stores that do not wait for the navigation data to be updated can be displayed on the screen based on the navigation data.

Brief Description of Drawings FIG. 1 is a configuration diagram showing a car navigation system according to an embodiment of the present invention.

FIG. 2 is a diagram showing one page in the map book in FIG.

FIG. 3 is a partial cross-sectional view of the map book page of FIG.

[FIG. 4] FIG. 4 is an explanatory diagram showing an example of a printing state of a plurality of coordinate patterns on a map book page.

FIG. 5 is a block diagram showing a configuration of the electronic pen in FIG. 1.

FIG. 6 is a diagram showing an example of the data structure of read data stored in the nonvolatile memory in FIG.

FIG. 7 is a block diagram showing a configuration of the navigation main body in FIG. 1.

FIG. 8 is a diagram showing an example of an area determination table stored in the CD-ROM in FIG.

FIG. 9 is a diagram showing an example of a road name conversion table stored in the CD-ROM in FIG.

FIG. 10 is a diagram showing an example of a landmark table stored in the CD-ROM in FIG.

FIG. 11 is a flowchart showing a flow of processing for unprocessed received read data by the read data processing unit in FIG. 7.

12 is a diagram showing an example of a display screen displayed on the liquid crystal device in FIG.

[FIG. 13] FIG. 13 is a diagram showing one page of a travel magazine or one page of a tourist information pamphlet, which is a modified example of the printed matter.

Explanation of symbols

[0019] 1 Car navigation system (navigation system)

2 Navigation body

3 USB cable (communication cable)

4 Electronic pen (portable input device)

5 Map book (printed matter) 13 Coordinate pattern (Pattern readable by electronic pen)

26 Convenience store mark (a kind of classification mark of landmark attribute information)

27 Gas station mark (a kind of classification mark of landmark attribute information)

28 Financial institution mark (a kind of classification mark of landmark attribute information)

46 Reading data

66 Liquid crystal devices (display means)

67 Temporary memory (storage means)

71 Navigation data

82 Road name conversion table (route conversion table)

83 Landmark Tape Nore

101 Road name data (attribute information specific to the route)

113 Latitude and longitude data

121 Received read data

124 Extracted landmark data (information about extracted landmarks)

134 Reading data processing unit (route extraction means, landmark extraction means)

143 Mark for indicating the gas station

144 Display mark indicating convenience store

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, a navigation system and a landmark display method according to an embodiment of the present invention will be described with reference to the drawings. The navigation system is described as an example of a car navigation system that is installed in an automobile that is a kind of vehicle and is used for road guidance of the automobile. The landmark display method will be described as part of the operation of the car navigation system.

FIG. 1 is a configuration diagram showing a car navigation system 1 according to an embodiment of the present invention. The car navigation system 1 includes a navigation main body 2 as a navigation device installed in an automobile, an electronic pen 4 as a portable input device that can be connected by the navigation main body 2 and a USB (Universal Serial Bus) cable 3. And a map book 5 as printed matter. A USB cable is a type of communication cable. FIG. 2 is a diagram showing one page in the map book 5 in FIG. FIG. 3 is a partial cross-sectional view of the page of map book 5 in FIG.

[0023] As shown in FIG. 3, each page of the map book 5 is printed on the paper surface of the sheet 11 with ink that absorbs infrared rays and ink that transmits infrared rays. The sheet 11 is first printed with ink that absorbs infrared rays, and information such as a map is printed thereon with ink that transmits infrared rays.

[0024] As shown in Fig. 2, each page of the map book 5 is filled with a rectangular map image 21 including a plurality of roads through which automobiles can pass, and various rectangular marks 22 using ink that transmits infrared rays. , ..., 28 are printed. The map image 21 and the plurality of marks 22,..., 28 are printed in separate areas on the sheet 11 so as not to overlap each other! /.

[0025] The mark formed on the sheet 11 with ink that transmits infrared rays includes an electronic pen mark for controlling the electronic pen 4 and a command mark for controlling the use of data read by the electronic pen 4. And landmark attribute classification marks. A landmark is a moving object such as a convenience store, a gas station, a shrine, or a school. It can also be a destination for travel. Examples of the electronic pen mark include a reset mark 22 and a determination mark 23. Command marks include destination setting mark 24 and land mark acquisition mark 25. Landmark attribute classification marks include convenience store mark 26, gas station mark 27, and financial institution mark 28.

[0026] Further, a plurality of coordinate patterns 13 are printed on the page of the map book 5 by ink that absorbs infrared rays. The coordinate pattern 13 is a resolution pattern that can be read by the electronic pen 4, and is composed of 6 × 6 dots 12.

FIG. 4 is an explanatory diagram showing an example of a printing state of a plurality of coordinate patterns 13 on the sheet 11. In FIG. 4, the plurality of dots 12 constituting the plurality of coordinate patterns 13 are arranged vertically and horizontally at intervals of approximately 0.3 mm. One coordinate pattern 13 is composed of 6 × 6 dots 12. The arrangement of the plurality of dots 12 in the coordinate pattern 13 is different for each coordinate pattern 13 so that at least the plurality of coordinate patterns 13 on the paper surface can be distinguished from each other. Specifically, for example, each dot 12 is vertically and horizontally based on the position of the intersection of the vertical reference line and the horizontal reference line at predetermined intervals in FIG. Printed at a slight offset in one of the right directions (ie, one of the four directions). Then, the combination of the deviation directions of a total of 36 dots 12 of 6 × 6 in each coordinate pattern 13 can be unique among the plurality of coordinate patterns 13. When 6 X 6 dots 12 are selected from among multiple dots 12, the combination of displacement directions of the 36 dots 12 is different from the combination of displacement directions of all other 36 dots 12. It can be a force. By combining the deviation directions of the 36 dots 12 that are unique among the plurality of coordinate patterns 13, each coordinate pattern 13 can be assigned a unique coordinate value. It should be noted that the plurality of coordinate patterns 13 composed of 6 × 6 dots 12 may be different from each other in one map book 5! /, For example.

[0028] The plurality of coordinate patterns 13 are printed on substantially the entire surface of the paper. The plurality of coordinate patterns 13 are printed on the entire surface of the page other than the area overlapping the electronic pen marks 22 and 23 in the page of the map book 5 in FIG. The plurality of coordinate patterns 13 are printed over the map image 21, various command marks 24 and 25, and attribute classification marks 26, 27, and 28 of various landmarks. Multiple coordinate patterns 13 printed overlaid with map image 21, multiple coordinate patterns 13 printed over various command marks 24, 25, and various landmark attribute classification marks 26, 27 , 28 and the plurality of coordinate patterns 13 printed on top of each other are different from each other.

[0029] Further, the plurality of coordinate patterns 13 printed on substantially the entire surface of the sheet 11 are converted into coordinate data of different coordinate values by the electronic pen 4 based on the arrangement of the respective unique dots 12. Is done. The plurality of coordinate patterns 13 are converted into two-dimensional coordinate data of X and Y using, for example, the upper left corner of the page as a reference (0, 0). In the page of Fig. 2, the horizontal direction of the page is the X axis, and the vertical direction of the page is the Y axis.

[0030] It should be noted that the coordinate patterns 13 are based on the upper left corner of the large paper surface assuming that all pages of one map book 5, for example, are arranged on one large paper surface (0 , 0) may be converted into two-dimensional coordinate data of X and Y. In the case of this modification, not only the reading position in the page but also the map book is based on the two-dimensional coordinate data.

It is possible to specify the page in 5.

FIG. 5 is a block diagram showing a configuration of the electronic pen 4 in FIG. Electronic pen 4 ball Pen axis 31, pressure sensor 32, infrared LED (Light Emitting Diode) 33, CMOS (Complementary Metal Oxide Semiconductor resensor 34, USB Cape, Nore 3 force S USBI / F (USB interface) 35 connected, time information A timer 36, a nonvolatile memory 37, a microcomputer 38, etc. are generated, and the electronic pen 4 has an elongated bar-shaped housing 39 as shown in FIG.

Note that the electronic pen 4 and the navigation main body 2 described later may be provided with a wireless communication I / F such as Bluetooth instead of the USB I / F 35, for example. In addition, the timer 36 may measure the elapsed time after the electronic pen 4 is reset, for example, as the time.

The ball-point pen shaft 31 is disposed so as to protrude from one end portion of the elongated bar-shaped housing 39. The pen pressure sensor 32 detects the pen pressure acting on the ballpoint pen shaft 31. The pen pressure sensor 32 outputs the detected pen pressure value to the microcomputer 38.

The infrared LED 33 and the CMOS sensor 34 are disposed around the position where the ball pen shaft 31 is disposed at one end of the housing 39. When the tip of the ball-point pen shaft 31 touches the paper surface, the infrared LED 33 irradiates the contact portion and the surrounding portion with infrared light. The CMOS sensor 34 receives infrared rays reflected by the contact portion and the surrounding portion of the paper surface. The CMOS sensor 34 outputs the received infrared intensity distribution data to the microcomputer 38.

The microcomputer 38 includes a memory (not shown), a CPU (Central Processing Unit), an input / output port, and the like. The pressure sensor 32, infrared spring LED33, C MOS sensor 34, USBI / F35, timer 36, nonvolatile memory 37 such as EEPROM (Electrically Erasable Programmable Read-Only Memory), etc. are connected to the I / O port. . The CPU of the electronic pen 4 reads a control program (not shown) from a memory or the like and executes it. As a result, the read data generation unit 41 and the read data transmission unit 42 are realized in the microcomputer 38 of the electronic pen 4.

The read data generation unit 41 converts the coordinate pattern 13 imaged by the CMOS sensor 34 into a coordinate value, and generates read data 46 having read coordinate data 51 of a plurality of coordinate values. The read data generation unit 41 stores the generated read data 46 in the nonvolatile memory 37. FIG. 6 is a diagram showing an example of the data structure of the read data 46 stored in the nonvolatile memory 37 in FIG. The read data 46 is usually composed of a plurality of records. In Fig. 6, one horizontal row corresponds to one record. Each record of the read data 46 includes read coordinate data 51, pen pressure level data 52, and hourly IJ data 53. The read coordinate data 51 is coordinate data having coordinate values obtained from the coordinate pattern 13 imaged by the CMOS sensor 34, and is two-dimensional coordinate data of X and Y. The pen pressure level data 52 is data having a pen pressure value detected by the pen pressure sensor 32. The time data 53 is data having a time measured by the timer 36. The read data 46 in FIG. 5 is composed of four pieces of trajectory data as shown in the remarks column in FIG. Each track data is composed of multiple records.

The non-volatile memory 37 stores reset print pattern data 47 and determined print pattern data 48 in addition to the read data 46. The reset print pattern data 47 is data of a reset print pattern that is printed on the sheet 11 by using ink that absorbs infrared rays so as to overlap the reset mark 22 in FIG. The determined print pattern data 48 is data of a determined print pattern that is printed on the sheet 11 with the ink that absorbs infrared rays so as to overlap the determination mark 23 in FIG. The reset print pattern and the determined print pattern are used to control reading by the read data generation unit 41.

The read data transmission unit 42 transmits the read data 46 stored in the nonvolatile memory 37 in FIG. 5 to a device connected to the USB I / F 35 via the USB cable 3. In the car navigation system 1 shown in FIG. 1, the navigation main body 2 is connected to the USB I / F 35 of the electronic pen 4 by the USB cable 3. The read data transmission unit 42 transmits the read data 46 stored in the nonvolatile memory 37 to the navigation body 2.

FIG. 7 is a block diagram showing the configuration of the navigation body 2 in FIG. The navigation main body 2 includes a gyro sensor 61, a GPS (Global Positioning System) receiver 62, an HDD (node disk drive) 63, a key device 64, a touch panel 65, a liquid crystal device 66 as a display means, and a storage means. Temporary memory 67, USB I / F 68, CD (Compact Disc) l / F 69, microcomputer 70, etc. In addition, in FIG. CD-ROM (Compact Disc Read Only Memory) 6 inserted in the main body 2 is also described.

As shown in FIG. 1, a liquid crystal device 66 and a plurality of input buttons 60 of the key device 64 are disposed on the front panel of the navigation body 2. A touch panel 65 is disposed on the display part of the liquid crystal device 66. On the back side of the front panel, a CD input port (not shown) and a USB I / F 68 are arranged. The USB cable 3 connected to the USBI / F35 of the electronic pen 4 can be connected to the USBI / F68.

[0042] The gyro sensor 61 detects acceleration in the three axis directions of the X axis, the Y axis, and the Z axis.

That is, the gyro sensor 61 detects the acceleration in the three axis directions of the automobile on which the navigation body 2 is disposed.

[0043] The GPS receiver 62 receives GPS radio waves transmitted by GPS satellites, and generates latitude and longitude data. That is, the GPS receiver 62 generates latitude / longitude data of the automobile on which the navigation body 2 is disposed.

[0044] The HDD 63 stores data necessary for the navigation main body 2 to independently perform route search and route guidance. Examples of such data include navigation data 71 and guide route data 72 based on destination settings.

The navigation data 71 includes, for example, display map data, a plurality of node data, a plurality of link data, a plurality of landmark data, and the like.

[0046] The display map data in the navigation data 71 is data for displaying a road map on the liquid crystal device 66. For example, the map data is a road map of the whole of Japan at a predetermined scale. The display map data in the navigation data 71 is composed of a plurality of texture data with a predetermined mesh size, for example. Each texture data is associated with latitude / longitude data indicating the position of the texture data.

[0047] The node data in the navigation data 71 is data of road intersections and corners through which cars in the area covered by the display map data can pass. The node data includes a unique node name, latitude and longitude data of intersections and corners to which it corresponds. The node data is associated with attribute information such as an intersection name such as a corresponding intersection. [0048] The link data in the navigation data 71 is data associated with a road section connecting the intersections. Link data is associated with a unique link name and the names of multiple nodes to which it is connected. Also, the node data and the link data are associated with the road name of the corresponding road (for example, the national highway ** fountain, the prefectural road Δ △ line, etc.) as attribute information.

[0049] The landmark data in the navigation data 71 is data associated with facilities and places in the area covered by the display map data, such as convenience stores, gas stations, financial institutions such as banks, schools, shrines, etc. It is. The landmark data has attribute information such as the name, type, latitude and longitude of the corresponding landmark.

[0050] The CDI / F 69 reads data from the CD-ROM 6 inserted into the navigation main unit 2. The CD-ROM 6 inserted into the navigation main body 2 is supplied together with, for example, the map book 5 from, for example, the car navigation system 1 provider or publisher. The CD-ROM 6 stores, for example, an area determination table 81, a road name conversion table 82 as a route conversion table, a landmark table 83, and the like.

FIG. 8 is a diagram showing an example of the area determination table 81 stored in the CD-ROM 6 in FIG. The area determination table 81 has a plurality of coordinate frame data 91 associated with the paper surface read by the electronic pen 4. Each coordinate frame data 91 is associated with a processing command 92 that is executed when the coordinate frame is selected.

Specifically, the area determination table 81 in FIG. 8 includes the coordinate frame data 91 of the print range of the destination setting mark 24 and the coordinate frame data 9 1 of the print range of the landmark acquisition mark 25 in FIG. Coordinate data 91 for the print range of the convenience store mark 26, Coordinate frame data 91 for the print range of the gas station mark 27, Coordinate frame data 91 of the print range of the financial institution mark 28, and the print range of the map image 21 Coordinate frame data 91. Each coordinate frame data 91 is assumed to have a rectangular print range and is composed of the coordinate values of the two opposite corners.

Further, in the area determination table 81 of FIG. 8, destination setting is associated as a processing command 92 when the inside of the coordinate frame of the destination setting mark 24 is selected. Landmark acquisition mark As the process when the coordinate frame of 25 is selected, the landmark acquisition process is It is associated. As a process when the convenience store mark 26 coordinate box is selected, a process for setting a convenience store for the type of landmark to be searched is associated. As processing when the coordinate frame of the gas station mark 27 is selected, processing for setting a gas station is associated with the type of landmark to be searched. As processing when the coordinate frame of the financial institution mark 28 is selected, processing for setting a financial institution is associated with the type of the landmark to be searched. As a process when the coordinate frame of map image 21 is selected, a road name identification process is associated.

FIG. 9 is a diagram showing an example of the road name conversion table 82 stored in the CD-ROM 6 in FIG. The road name conversion table 82 includes road name data 101 of a plurality of roads within the printed map range. The road name data 101 is attribute information unique to the road. The road name conversion table 82 in FIG. 9 has road name data 101 of two roads among the three roads printed in FIG. Specifically, it has road name data 101 of “National road * * line” and road name data 101 of “prefectural road ΔΔ line”. Each road name data 101 is associated with coordinate data 102 of a plurality of coordinate patterns 13 printed so as to overlap the road. In the road name conversion table 82, the coordinate value of the coordinate data 102 associated with the road name data 101 does not exactly match the coordinate value of the coordinate pattern 13 that overlaps the road of the road name data 101. Also good.

FIG. 10 is a diagram showing an example of the landmark table 83 stored in the CD-ROM 6 in FIG. The landmark table 83 has attribute information of a plurality of landmarks within the printed map range. Each record in the landmark table 83 has attribute information such as name data 111, type data 112, latitude / longitude data 113 of the location, and road name data 114 of the corresponding landmark. The landmark type data 112 indicates the attribute classification to which the landmark belongs. The types of landmarks in the landmark table 83 are not limited to the classifications printed as marks 26, 27, and 28 on the paper surface of FIG. In the landmark table 83, the plurality of adjacent road name data 114 is not limited to the road name data 101 registered in the road name conversion table 82. The landmark table 83 in FIG. Has attribute information of one or more convenience stores, attribute information of one or more gas stations, and attribute information of one or more financial institutions. The landmark table 83 can further include information about magazine recommended spots and new store information that has been imported or entered.

The temporary memory 67 is configured by a semiconductor memory such as a flash memory, for example.

The temporary memory 67 stores received read data 121, extracted road name data 122, extraction condition data 123, extracted landmark data 124, and the like.

[0057] The microcomputer 70 of the navigation main body 2 includes a memory, a CPU, an input / output port, and the like not shown. Gyro sensor 61, GPS receiver 62, HDD 63, key device 64, touch panel 65, liquid crystal device 66, temporary memory 67, USB I / F 68, etc. are connected to the input / output ports. The CPU of the navigation main unit 2 reads a control program (not shown) from memory or the like and executes it. As a result, the microcomputer 70 of the navigation main body 2 includes the current position data generating unit 131, the UK User Interface) unit 132, the read data receiving unit 133, the read data as the route extraction unit and the landmark extraction unit. The processing unit 134 is realized.

[0058] Note that the control program executed by the microcomputer 70 of the navigation main body 2 may be one stored in the memory of the microcomputer 70 or the like before the navigation main body 2 is shipped. 2 may be stored in the memory of the microcomputer 70 after shipment. A part of the control program may be stored in the memory of the microcomputer 70 after the navigation main body 2 is shipped. The control program stored in the memory of the microcomputer 70 after the navigation main body 2 is shipped may be, for example, an installed program stored in a computer-readable recording medium such as a CD-ROM6. You can also install what you downloaded via a transmission medium such as. The same applies to the control program executed by the microcomputer 38 of the electronic pen 4 described above.

[0059] The current position data generation unit 131 is installed with the navigation body 2 based on the latitude / longitude data generated by the GPS receiver 62 and the acceleration data generated by the gyro sensor 61. The current position data of the car to be generated is generated. The current position data is represented by latitude and longitude.

The UI unit 132 generates the guide route data 72 based on the setting of the destination and the like, and controls the display of the liquid crystal device 66. For example, the UI unit 132 accesses the HDD 63 and the temporary memory 67 based on the input data from the touch device 65 of the key device 64 and generates new display data. The UI unit 132 causes the liquid crystal device 66 to display an image based on the display data. Examples of the display screen that the UI unit 132 displays on the liquid crystal device 66 include a screen for searching for and selecting a destination or the like by address or classification, a display screen for a guidance route, a route guidance screen, and the like.

The read data receiving unit 133 receives the read data 46 transmitted by the electronic pen 4 using the USB I / F 68 of the navigation body 2. The read data receiving unit 133 stores the received read data 46 in the temporary memory 67. Temporary memory 67 records the received read data 121 as fe.

[0062] Based on the received read data 121 stored in the temporary memory 67, the read data processing unit 134 specifies the extracted road name and the extraction condition, and is attached to the navigation body 2 under the extraction condition. The landmark attribute information is extracted from the CD-ROM6. The read data processing unit 134 stores the extracted road name data 122, the extraction condition data 123, the extracted landmark data 124, and the like in the temporary memory 67.

Next, the operation of the car navigation system 1 having the above configuration will be described. In the following, the operation of reading a page of the map book 5 with the electronic pen 4 and displaying the landmarks extracted based on the reading on the liquid crystal device 66 of the navigation main body 2 will be described.

First, the user reads the map book 5 with the electronic pen 4. Map book 5 page

As shown in Fig. 2, the reset image 22, decision mark 23, destination setting mark 24, landmark acquisition mark 25, convenience store mark 26, gasoline stand mark 27, and financial institution mark 28 are printed together with the map image 21. . For example, as shown by a dotted line in FIG. 2, the user checks the reset mark 22 and the landmark acquisition mark 25 with the pen tip of the electronic pen 4 (the tip of the ballpoint pen shaft 31), and the road in the map image 21. "National highway OO Trace the line, and check the convenience store mark 26, gas station mark 27, and decision mark 23.

When the pen pressure value greater than or equal to a predetermined threshold is input from the pen pressure sensor 32, the read data generation unit 41 of the electronic pen 4 starts infrared irradiation processing. When the writing pressure value from the writing pressure sensor 32 falls below a predetermined threshold, the read data generation unit 41 of the electronic pen 4 ends the infrared irradiation process. The read data generation unit 41 executes an infrared irradiation process when each mark is checked and when each road is traced.

In this infrared irradiation process, the read data generation unit 41 causes the infrared LED 33 to emit infrared light. Infrared light output from the infrared LED 33 is reflected by the portion of the paper where the pen tip hits. On various marks such as the reset mark 22 and the map image 21, a coordinate pattern 13 is overlaid and printed. The coordinate pattern 13 absorbs infrared rays by the arrangement of the plurality of dots 12. The CMOS sensor 34 receives infrared rays reflected by the paper without being absorbed by the dots 12. The CMOS sensor 34 supplies infrared intensity distribution data to a read data generation unit 41 implemented in the microcomputer 38.

When the infrared intensity distribution data is supplied from the CMOS sensor 34, the read data generation unit 41 analyzes the image. The read data generation unit 41 first stores an absorption pattern that matches the reset print pattern data 47 stored in the nonvolatile memory 37 in the infrared absorption pattern in the read image, or is stored in the nonvolatile memory 37. It is determined whether or not an absorption pattern that matches the determined print pattern data 48 is included.

When the infrared absorption pattern in the read image includes an absorption pattern that matches the reset print pattern data 47, the read data generation unit 41 resets the nonvolatile memory 37 and adds the read data 46. Start processing. The read data generation unit 41 erases the past read data 46 stored in the nonvolatile memory 37.

When the absorption pattern that matches the determined print pattern data 48 is included in the infrared absorption pattern in the read image, the read data generation unit 41 ends the addition process of the read data 46.

[0070] The absorption pattern that matches the reset print pattern data 47 and the absorption pattern that matches the determined print pattern data 48 in the infrared absorption pattern in the scanned image. When the deviation is not included, the read data generation unit 41 identifies the coordinate pattern 13 in the image. The read data generation unit 41 obtains a coordinate value unique to the coordinate pattern 13 from the identified coordinate pattern 13 by a predetermined algorithm.

When the coordinate value is obtained from the read image generated by the CMOS sensor 34, the read data generation unit 41 acquires time information from the timer 36 and acquires the pen pressure value from the pen pressure sensor 32. The read data generation unit 41 stores the acquired coordinate value, writing pressure value, and time information in the nonvolatile memory 37. The nonvolatile memory 37 adds the three data supplied from the read data generating unit 41 to the read data 46 as one record of the read data 46.

[0072] As described above, the user checks the reset mark 22 and the landmark acquisition mark 25, traces the road “National highway OO” in the map image 21, and further displays a convenience store mark 26, a gas station mark 27 When the determination mark 23 is checked, read data 46 as shown in FIG. 6 is accumulated and stored in the nonvolatile memory 37, for example. The non-volatile memory 37 includes a plurality of records having coordinate values obtained from a plurality of coordinate patterns overlapping the landmark acquisition mark 25 and a plurality of coordinate patterns overlapping the road “National Route OO” in the map image 21. The coordinate values obtained from the multiple records having the coordinate values obtained, the multiple records having the coordinate values obtained from the multiple coordinate patterns overlapping the convenience store mark 26, and the multiple coordinate patterns overlapping the gas station mark 27 are obtained. A plurality of records and read data 46 composed of the records are stored. As the read data 46, as shown in FIG. 6, read data 46 having four trajectory data is generated. The read data 46 includes the trajectory data for checking the landmark acquisition mark 25, the trajectory data for tracing the road "National highway OO" in the map image 21, the trajectory data for checking the convenience store mark 26, and the gas station mark 27. And track data to be checked.

When the above reading operation is completed, the user connects the electronic pen 4 and the navigation body 2 with the USB cable 3.

[0074] When the electronic pen 4 and the navigation unit 2 are connected by the USB cable 3, between the USBI / F35 of the electronic pen 4 and the USBI / F68 of the navigation unit 2, for example, a USB mass storage class For example, data can be transmitted and received. Electronic pen 4 The read data transmitting unit 42 transmits the read data 46 stored in the nonvolatile memory 37 to the read data receiving unit 133 of the navigation body 2. The read data 46 transmitted by the read data transmitting unit 42 is transmitted to the read data receiving unit 133 via the USB I / F 35 of the electronic pen 4, the USB cable 3, and the USB I / F 68 of the navigation body 2. The read data receiving unit 133 stores the received read data 46 in the temporary memory 67. The temporary memory 67 uses the read data 46 received by the read data receiving unit 133 as E5C |

When new unprocessed received read data 121 is stored in temporary memory 67, read data processing unit 134 starts processing for the unprocessed received read data 121.

FIG. 11 is a flowchart showing a flow of processing executed by the read data processing unit 134 in FIG. 7 on the unprocessed received read data 121. The read data processing unit 134 first determines whether or not the unprocessed received read data 121 is stored in the temporary memory 67 (step ST1).

When unprocessed received read data 121 is not stored in temporary memory 67, read data processing unit 134 repeatedly executes this determination process (step ST1). The read data processing unit 134 waits for unprocessed received read data 121.

If unprocessed received read data 121 is stored in temporary memory 67, read data processing unit 134 checks whether there is a landmark acquisition instruction in received read data 121 (step ST2). Specifically, for example, first, the read data processing unit 134 acquires the coordinate frame data 91 of the printing range of the landmark acquisition mark 25 from the area determination table 81 of the CD-ROM 6 as shown in FIG. Based on the acquisition instruction from the read data processing unit 134, the CDI / F 69 rotates the CD-ROM 6 and reads the coordinate frame data 91 of the land mark acquisition mark 25 recorded on the CD-ROM 6 to read the read data. Supply to processing unit 134.

[0079] Upon acquiring the coordinate frame data 91 of the landmark acquisition mark 25, the read data processing unit 134 receives and reads the trajectory data specifying the inside of the coordinate frame by the coordinate frame data 91 in the temporary memory 67. It is determined whether or not the data 121 is included. The read data processing unit 134 includes, for example, the coordinate value in the coordinate frame is included in the received read data 121. In this case, it is determined that the trajectory data specifying the coordinate frame is included in the received read data 121. For example, when the coordinate value in the coordinate frame is not included in the received read data 121, the read data processing unit 134 includes the trajectory data designating the coordinate frame in the received read data 121! ! /

[0080] Note that the read data processing unit 134 analyzes the received read data 121 to identify each trajectory data in the received read data 121, calculates the coordinate value of the center of gravity of the specified trajectory data, and the like. Based on whether or not the coordinate value is within the coordinate frame by the coordinate frame data 91 of the landmark acquisition mark 25, the received read data 121 includes trajectory data specifying the inside of the coordinate frame of the landmark acquisition mark 25. It may be possible to judge whether or not

In addition, the read data processing unit 134 may specify the trajectory data in the received read data 121 based on the following determination, for example. The received read data 121 has the same data structure as the read data 46 in FIG. In the read data 46, a plurality of read coordinate data 51 are stored side by side in the order of the read time. When the time interval of time data 53 of consecutive records is less than or equal to a predetermined value, the read data processing unit 134 determines that the consecutive records belong to the same trajectory data, and the time interval is greater than the predetermined value. In this case, it is determined that the continuous records belong to different trajectory data. The read data processing unit 134 scans from the first record to the last record of the received read data 121 and determines that it belongs to different trajectory data as a delimiter of the plural trajectory data, What is necessary is just to specify locus data. Note that the read data processing unit 134 may determine that the trajectory data is separated based on the difference between the read coordinate values of successive records that are not equal to the time interval of the time data 53 of successive records.

When the received read data 121 stored in the temporary memory 67 includes trajectory data in the coordinate frame of the landmark acquisition mark 25, the read data processing unit 134 executes a landmark acquisition process. In other cases, the read data processing unit 134 executes another process (step ST3) such as destination setting, for example.

In the landmark acquisition process, the read data processing unit 134 first determines whether or not unprocessed trajectory data is included in the received read data 121 (step ST4). For example, when the received read data 121 includes trajectory data other than the trajectory data specifying the landmark acquisition mark 25, the read data processing unit 134 does not process the received read data 121. It is determined that the trajectory data is included. In other cases, the read data processing unit 134 determines that the unprocessed trajectory data is not included in the received read data 121. The read data 46 in FIG. 6 has four trajectory data. When this read data 46 is received, the read data processing unit 134 determines that unprocessed trajectory data is included in the received read data 121! /.

[0084] If it is determined that the unprocessed trajectory data is included in the received read data 121, the read data processing unit 134 converts the unprocessed trajectory data into a map area in which the map image 21 in FIG. 2 is printed. (Step ST5). For example, the read data processing unit 134 reads the coordinate frame data corresponding to the map image 21 from the area determination table 81 of the CD-ROM 6 and determines whether or not the unprocessed trajectory data is within the range of this coordinate frame. Determine whether or not.

[0085] It should be noted that the read data processing unit 134 is, for example, more than half of the unprocessed trajectory data, even if some coordinate values in the unprocessed trajectory data protrude outside the coordinate frame. If the coordinate value is within the range of this coordinate frame, it may be determined that the unprocessed trajectory data is within the range of this coordinate frame.

When it is determined that the unprocessed trajectory data is within the range of the coordinate frame of the map image 21, the read data processing unit 134 starts a road name extraction process (step ST6). Specifically, for example, the read data processing unit 134 reads the coordinate values of a plurality of read coordinate data 51 of the unprocessed trajectory data in the received read data 121 and a plurality of values in the road name conversion table 82 shown in FIG. The coordinate value of the road coordinate string of the road name is compared.

[0087] In the read data 46 in FIG. 6, the second trajectory data is the road “National road * on the map in FIG.

Trajectory data generated by tracing "* line". The read data processing unit 134 executes road name extraction processing on the second trajectory data!

[0088] The read data processing unit 134 is associated with, for example, a plurality of coordinate values in the road name conversion table 82 that match a plurality of coordinate values of unprocessed trajectory data within a range of a predetermined value. If there is road name data 101, multiple coordinate values of unprocessed trajectory data and a predetermined When the road name data 101 is associated with multiple coordinate values arranged in parallel within the range of the value difference, or in the road name conversion table 82, the cumulative value difference of the multiple coordinate values is If there is a small amount of road name data 101, these road name data 101 are identified as roads based on unprocessed trajectory data. The read data processing unit 134 stores the identified road name data 101 in the temporary memory 67. The temporary memory 67 stores the road name data 101 specified by the read data processing unit 134 as the extracted road name data 122.

When it is determined that the unprocessed trajectory data is not within the range of the coordinate frame of the map image 21, the read data processing unit 134 starts extraction condition setting processing (step ST7). Specifically, for example, the read data processing unit 134 determines the coordinate values of the plurality of read coordinate data 51 of the unprocessed trajectory data in the read data 46 and the landmark attribute classification in the area determination table 81 shown in FIG. Compare the range of multiple coordinate frames of marks 26, 27, and 28. If there is a coordinate frame including the coordinate values of the plurality of read coordinate data 51 of the unprocessed trajectory data in the plurality of coordinate frames of the attribute classification marks 26, 27, 28 of these landmarks, the reading is performed. The data processing unit 134 sets the landmark attribute classification mark corresponding to the coordinate frame as the landmark extraction condition. The temporary memory 67 stores landmark extraction conditions as extraction condition data 123.

In the read data 46 of FIG. 6, the third trajectory data and the fourth trajectory data become unprocessed trajectory data that is not within the range of the coordinate frame of the map image 21. The read data processing unit 134 processes the third trajectory data and the fourth trajectory data in FIG. 6 as unprocessed trajectory data.

[0091] The third trajectory data in FIG. 6 is trajectory data for checking the convenience store mark 26. The read data processing unit 134 sets a convenience store as a landmark extraction condition for the third trajectory data. The temporary memory 67 stores a setting for extracting a convenience store as the extraction condition data 123.

[0092] The fourth trajectory data in FIG. 6 is trajectory data for checking the gas station mark 27. The read data processing unit 134 sets a gas station as a landmark extraction condition for the fourth trajectory data. Temporary memory 67 contains extraction condition data 123 The setting for extracting the gas station is stored. Through these processes, the temporary memory 67 uses the extraction condition data 123 to extract the convenience store and the gas station as SX 疋 E5C |

[0093] When the road name extraction process (step ST6) or the extraction condition setting process (step ST7) based on the unprocessed trajectory data is completed, the read data processing unit 134 again in the received read data 121, It is determined whether or not unprocessed route data is included! / (Step ST4). If the received read data 121 includes unprocessed route data, the read data processing unit 134 determines whether the unprocessed trajectory data is within the range of the coordinate frame of the route image (step ST5 Depending on the determination, road name extraction processing (step ST6) or extraction condition setting processing (step ST7) is executed. The read data processing unit 134 repeatedly executes the above processing until there is no unprocessed trajectory data in the received read data 121.

When there is no unprocessed trajectory data in the received read data 121, the read data processing unit 134 starts the landmark extraction process (step ST8). When the read data processing unit 134 starts the landmark extraction process, the temporary memory 67 stores the extraction condition data 123 and the extracted road name data 122 extracted based on the trajectory data included in the received read data 121. ing. When the received read data 121 has only the trajectory data for checking the landmark acquisition mark 25, the extraction condition data 123 and the extracted road name data 122 are not stored in the temporary memory 67. .

In the landmark extraction process, the read data processing unit 134 first reads the extraction condition data 123 and the extracted road name data 122 from the temporary memory 67. When the extraction condition data 123 or the extracted road name data 122 is not stored in the temporary memory 67, the read data processing unit 134 reads only the data stored in the temporary memory 67.

After reading the extraction condition data 123 and the extracted road name data 122 from the temporary memory 67, the read data processing unit 134 reads the landmark table 83 from the CD-ROM 6. In the landmark table 83, as shown in FIG. 10, attribute information of a plurality of landmarks is stored. The attribute information of each landmark includes landmark name data 111, type data 112, location latitude / longitude data 113, and adjacent road name data 114. The As described above, the landmark table 83 includes information on recommended spots in magazines, information on new spots, and information on stores.

When the landmark table 83 is read together with the extraction condition data 123 and the extracted road name data 122, the read data processing unit 134 reads the road name of the road name data 101 from the landmark table 83. , And the landmark type data 112 that matches the extraction condition data 123 is extracted.

[0098] If the extraction condition data 123 and the extracted road name data 122 are not stored in the temporary memory 67, that is, the road in the map is not specified by the electronic pen 4, and the landmark attribute classification mark When 26, 27, and 28 are not checked, the read data processing unit 134 extracts records of all landmarks from the landmark table 83.

The read data processing unit 134 stores all the extracted landmark records in the temporary memory 67 as the extracted landmark data 124. The extracted landmark data 124 stored in the temporary memory 67 includes landmark name data 111, type data 112, latitude / longitude data 113 of the location, and adjacent road name data 114. It also includes information on recommended spots in magazines, information about new spots and stores!

[0100] In the reading operation using the electronic pen 4 described above, the record power of a plurality of landmarks existing along the national road OO designated by the user on the paper surface of FIG. It is stored as landmark data 124. In the temporary memory 67, the landmark in the landmark table 83 in FIG. 10 that has a nearby road name S “National highway * * line” and the type of landmark is “Convenience store” or “Gas station”. Records are saved. Specifically, it is stored in the temporary memory 67 as a convenience store record in the first row, a gas station record in the fourth row, and force extraction landmark data 124 in the landmark table 83. After completing the landmark extraction process, the read data processing unit 134 ends the process for the unprocessed received read data 121.

[0101] The UI unit 132 of the navigation main unit 2 accesses the HDD 63 when displaying a display screen such as a destination search screen, a route search screen, a route guidance screen on the liquid crystal device 66. The UI unit 132 accesses the HDD 63 when confirming the guide route or during the route guidance. The UI unit 132 displays the display map data, node data, link data, and landmark data in the display area from the navigation data 71 of the HDD 63. Is read.

After reading the navigation data 71 from the HDD 63, the UI unit 132 accesses the temporary memory 67. The UI part 132 is registered as attribute information in the acquired node data and link data! /, Road name that matches the road name 1S is included in the extracted landmark data 124 of the temporary memory 67 Determine whether. Then, the UI unit 132 reads, from the extracted landmark data 124, the landmark record having the adjacent road name data 114 that matches the road names of the node data and the link data from the temporary memory 67.

[0103] When the landmark data of the display area is read from the HDD 63 and the temporary memory 67, the UI unit 132 generates display data. For example, the UI unit 132 can select a curve indicating a road in the display area (a road based on node data and link data) and a landmark in the display area on a rear image based on the display map data. The display data of the image that overlaps the display mark (display object) to be displayed as is generated. The UI unit 132 allocates each display mark on the background screen using the value of the corresponding latitude / longitude data 113 to generate display data. The UI unit 132 supplies the generated display data to the liquid crystal device 66. The liquid crystal device 66 displays an image based on the display data.

FIG. 12 is a diagram showing an example of a display screen displayed on the liquid crystal device 66 in FIG.

The liquid crystal device 66 displays a plurality of roads including a national road ** road 141 and a prefectural road △△ road 142. Also, the LCD device 66 has a display mark 143 indicating a gas station along the national highway * * road 141 and the intersection of the national road * * road 141 and the prefectural road △△ road 142. A display mark 144 indicating a convenience store, a display mark 145 indicating a gas station along the road 142 on the prefectural road △△, and a display mark 146 indicating a bank along the road 142 on the prefectural road △△ It is displayed as an object that can be selected as a stopover or destination. It may also display information about magazine recommended spots or new store information that has been imported or entered. [0105] National highway * * Display mark 143 indicating a gas station along road 141 and national highway * * Convenience store beside the intersection of national road * 141 road 141 and prefectural road △△ road 142 144 is displayed using landmark data extracted from CD-ROM6. In this way, along the road traced by the electronic pen 4, the display marks 143 and 144 are displayed as objects that can be selected as new landmark forces registered in the CD-R OM 6.

[0106] In addition, the navigation mark main body 2 has a display mark 145 indicating a gas station along the road 142 of the prefectural road △△ line and a display mark 146 indicating a bank along the road 142 of the prefectural road △△ line. ! /, Registered in the navigation data 71! /, Displayed using landmark data.

In order to realize the display of FIG. 12, the UI unit 132, for example, on the display screen of the liquid crystal device 66, the road registered as the adjacent road name data 114 in the landmark data read from the temporary memory 67. Only the display mark based on the landmark data read from the temporary memory 67 is displayed in the range of the specified display width from the name road (for example, the range between the two dotted lines in Fig. 12). At other display positions, display marks based on the landmark data read from the navigation data 71 are displayed.

[0108] For this reason, for example, the display mark 147 of the gasoline stand indicated by the dotted line along the national highway * * road 141 in FIG. 12 is registered in the navigation data 71, and when the map book 5 is issued If it is not stored in CD-ROM6 because it is closed, the gas station display mark 147 indicated by this dotted line will not be displayed. Along the road selected by the electronic pen 4, it is registered in the CD-ROM6! /, Na! /, Old! /, And landmarks are not displayed as objects by display marks.

As described above, according to this embodiment, the electronic pen 4 reads the printed matter on which the coordinate pattern 13 that can be read by the electronic pen 4 is printed together with the print contents relating to the route such as the road. The read data processing unit 134 of the navigation main body 2 uses the road name conversion table 82 to extract a road name specific to the route associated with the reading position by the electronic pen 4, and uses the landmark table 83. , The label associated with the extracted road name The attribute information of the mark is extracted. The temporary memory 67 stores attribute information including the latitude / longitude data 113 of the landmark as the extracted landmark data 124. The liquid crystal device 66 does not include the landmark mark display marks 143 and 144 in the extracted landmark data 124 together with the road 141 with the extracted road name when the guidance route is confirmed or during the route guidance.

As described above, the navigation system according to the present embodiment uses the latitude / longitude data 113 for the landmark associated with the road at the reading position of the electronic pen 4 in the CD-ROM 6. Ability to display on the screen based on the navigation data 71 along with the road. New landmarks along the road can be displayed. Therefore, the car navigation system 1 can display the landmarks registered in the navigation data 71 held by the car navigation system 1 on the screen based on the navigation data 71. The car navigation system 1 displays landmarks such as recently built convenience stores on the screen based on the navigation data 71 without waiting for the update of the navigation data 71 once a year or once every six months. can do.

[0111] In particular, in this car navigation system 1, the landmark attribute information extracted from the landmark table 83 is stored in the temporary memory 67 as the extracted landmark data 124. At the time of confirmation or during route guidance, the landmarks in the extracted landmark data 124 are displayed together with the route. Therefore, the liquid crystal device 66 can display the landmark acquired from the temporary memory 67 without waiting for the search process of the landmark table 83 every time the guidance display is switched, for example. The car navigation system 1 uses the force S to acquire and display the landmarks stored in the landmark table 83 as quickly as the landmarks registered in the navigation data 71.

[0112] In addition, the car navigation system 1 can display the landmarks stored in the landmark table 83 of the CD-ROM 6 by allowing the user to read the map book 5 with the electronic pen 4. . The user does not need to operate the small touch panel 65 or the input button 60 of the navigation body 2 in order to display landmarks along the desired road. The user displays the landmark data stored on the CD-ROM6. It is not necessary to operate the hierarchized menu etc. of the navigation body 2 to show.

[0113] Further, in the car navigation system 1, it is not necessary to update the navigation data 71 itself so that landmarks not registered in the navigation data 71 possessed by the car navigation system 1 can be displayed. The user does not need to perform troublesome work for updating the navigation data 71 or bring the car navigation system 1 to the support center. The user does not have to register landmarks in the middle of the guide route that are not registered in the navigation data 71 one by one with his / her hand and register them in the navigation data 71.

In addition, the electronic pen 4 of this embodiment reads the landmark attribute classification marks 26, 27, and 28 printed on the map book 5 so as not to overlap the map. The read data processing unit 134 of the navigation main body 2 is a landmark associated with the extracted road name and belongs to the category of the attribute classification mark read by the electronic pen 4. The attribute information is extracted and stored in the temporary memory 67.

Accordingly, the read data processing unit 134 extracts the attribute information of the landmarks of the classification required by the user designated by the user with the electronic pen 4. The liquid crystal device 66 can display only the landmarks that have been checked along with the road along the road. In addition, by limiting to landmarks of the required classification, the time required for reading information can be shortened.

[0116] Further, on the paper surface of the map book 5 of this embodiment, as a pattern that can be read by the electronic pen 4, a plurality of coordinate values that can be converted into different coordinate values at least for each position in the paper surface. The coordinate pattern 13 is printed. The electronic pen 4 generates trajectory data with a plurality of coordinate values converted from the plurality of read coordinate patterns 13. In the road name conversion table 82, each road name is associated with coordinate values of a plurality of coordinate patterns 13 printed on the map book 5 so as to overlap the road. Further, the read data processing unit 134 compares the plurality of coordinate values of the trajectory data generated by the electronic pen 4 with the coordinate values of the plurality of coordinate patterns 13 for each road stored in the road name conversion table 82. Thus, the road name of the road associated with the reading position by the electronic pen 4 is extracted. Therefore, the read data processing unit 134 can identify the road read by the electronic pen 4 based on the overlap between the plurality of coordinate patterns 13 and the road on the paper surface of the map book 5.

[0118] In order to display a landmark together with the navigation data 71 in the car navigation system 1, the latitude / longitude data of the landmark is required. If the latitude / longitude data itself is to be printed on the map book 5, the latitude / longitude data to be printed must be printed with a resolution that the car navigation system 1 can use. In order to print latitude and longitude data with a resolution that can be used by the car navigation system 1, roads in the map book 5 need to be printed in a predetermined large size. On the other hand, in the configuration of the embodiment described above, the road printed on the map book 5 is associated with the coordinates of the map book 5 on the paper surface. The road to be printed can be printed in any size without being restricted by being used in the car navigation system 1. Roads can be printed at the optimum size in the map book 5 in the same way as the general map book 5 with priority given to the print layout.

[0119] In addition, the landmark attribute classification marks 26, 2 7, and 28 printed on the map book 5 of this embodiment overlap the plurality of coordinate patterns 13 and the map image 21 on which the route is printed. Are printed so that they do not overlap. When the coordinate value specified by the trajectory data of the electronic pen 4 is a coordinate value in a paper area different from the map image 21, the read data processing unit 134 classifies the read attribute classification mark. Extract the attribute information of the landmark to which it belongs.

Therefore, the read data processing unit 134 can extract the attribute information of landmarks of the classification required by the user designated by the user with the electronic pen 4. The liquid crystal device 6 6 can display only the landmarks of the classification required by the user together with the route.

Moreover, with the configuration of this embodiment, it is not necessary for the electronic pen 4 to have a function of interpreting the classification mark of the landmark attribute information. The electronic pen 4 does not need to be unique for each printed matter. For example, the electronic pen 4 must be different for the map book 5 on which the landmark attribute classification mark is printed and the map pen 5 on which the landmark attribute classification mark is not printed. There is no. In this embodiment, the read data processing unit 134 is provided in the navigation main body 2, and the electronic pen 4 is connected to the navigation main body 2 via the USB cable 3. Therefore, the electronic pen 4 can be carried with the map book 5. The user can read the map book 5 with the electronic pen 4 without using the navigation main body 2 or at a place other than the place where the navigation main body 2 is installed. The user can perform a reading operation, for example, indoors on the night before departure so that a new land mark can be used, for example, in the car navigation system 1.

In addition, the liquid crystal device 66 of this embodiment is extracted by the read data processing unit 134 that does not display the landmarks in the navigation data 71 at least within a predetermined range from the extracted road. Display only the landmarks to be used.

Accordingly, only the landmarks extracted from the landmark table 83 of the CD-ROM 6 are displayed around the road extracted by the read data processing unit 134. Only the latest landmarks extracted from the landmark table 83 of the CD-ROM 6 are displayed around the road read by the electronic pen 4. Around the displayed road, for example, the power S that is operated when the navigation data 71 is generated and the convenience store that is closed when the CD-ROM 6 is issued are not displayed. In addition, a convenience store that has not been registered in the navigation data 71 and that has been newly opened after the generation of the navigation data 71 is displayed around the displayed road.

Further, in this embodiment, the liquid crystal device 66 displays the landmark extracted by the read data processing unit 134 as an object that can be selected as a departure point, a stopover, or a destination by a display mark. To do.

Therefore, the car navigation system 1 can select a landmark not included in the navigation data 71 as a departure point, a stopover, or a destination. In the car navigation system 1, a force S that can generally select an arbitrary point as a starting point, a stopover point, or a destination by an address, etc. In other words, it is a complicated operation. On the other hand, with the configuration of this embodiment, the same simple operation as that of the landmark included in the navigation data 71 can be achieved without performing such troublesome operations. With this simple operation, you can select landmarks that are not included in the navigation data 71 as departure points, stopovers, or Mejiro area.

The above embodiment is an example of a preferred embodiment of the present invention. However, the present invention is not limited to this, and various modifications and changes can be made without departing from the scope of the invention. Is possible.

In the embodiment described above, the printed matter is the map book 5. In addition to this, for example, the printed material that can be read by the electronic pen 4 may be any printed material on travel magazines, tourist information pamphlets, and other information on routes such as roads.

FIG. 13 is a diagram showing one page of a travel magazine or one page of a tourist information brochure. On the paper surface of FIG. 13, a plurality of coordinate patterns are printed on almost the entire surface with ink that absorbs infrared rays. In addition, on the ink that absorbs infrared rays, the traffic guide 151 to the tourist spot 151 and various rectangular marks 22,..., 28 and the force S are printed by the ink that transmits infrared rays.

Then, as indicated by a dotted frame 152 in FIG. 13, for example, by registering a plurality of coordinate frames that overlap with the print areas of each section in the traffic guide 151 in the area determination table 81, the car navigation system The read data processing unit 134 of 1 can extract the attribute information of the landmarks along the road in the section stored in the landmark table 83 and store the extracted attribute information in the temporary memory 67. The liquid crystal device 66 of the car navigation system 1 can display the extracted landmarks.

In the above embodiment, the road name conversion table 82, the area determination table 81, and the land mark table 83 are provided to the user of the car navigation system 1 by the CD-ROM 6. These tables will be provided to users on computer-readable recording media, such as optical disks such as 0—0 ^ 16, 3 ¥ 0, and memory cards with semiconductor memory. It may be. In addition, these tables may be provided to the user so that the navigation main body 2 can obtain them via a transmission medium such as an Internet LAN (Local Area Network). In addition, the landmark table 83 can be communicated to include the latest information on recommended spots in magazines, the latest information on new stores, and stores. In addition, road name conversion table 82, area determination tape The navigation table 81 and the landmark table 83 may be stored in advance in the HDD 63 of the navigation main body 2 separately from the navigation data 71.

[0132] In the above embodiment, the landmark attribute information extracted from the landmark table 83 (extracted landmark data 124) is stored in the temporary memory 67, which is a storage means different from the HDD 63 that stores the navigation data 71. Is memorized. In addition to this, for example, the landmark attribute information (extracted landmark data 124) extracted from the landmark table 83 is stored in the HDD 63, and is further updated or copied in the navigation data 71. May be.

In the above embodiment, the temporary memory 67 stores the landmark attribute information itself extracted from the landmark table 83 as the extracted landmark data 124. In addition to this, for example, the temporary memory 67 stores the position information in the landmark table 83 (CD-ROM 6) of the landmark attribute information extracted by the read data processing unit 134, or the land mark table 83. The conditions for extracting landmarks from the image may be stored. The temporary memory 67 may store information regarding the extracted landmark.

In the above embodiment, when the liquid crystal device 66 displays a road extracted based on the operation of the electronic pen 4, only the landmark extracted from the landmark table 83 is present around the extracted road. It is displayed. In addition to this, for example, when the liquid crystal device 66 displays a road extracted based on the operation of the electronic pen 4, it is extracted from the landmark table 83 force, the extracted landmark, and the navigation data 71. You can display the landmarks and! /, Or one or both of them! /. By coexisting old and new landmarks, for example, when revisiting a place visited in the past, it is possible to reach the destination more smoothly by comparing these new and old information. Industrial applicability

The present invention can be suitably used in a navigation system in which a navigation body is installed in a vehicle such as an automobile.

Claims

The scope of the claims

[1] A navigation system having route and landmark navigation data.

A portable input device that reads a printed matter on which a pattern that can be read by the portable input device is printed along with a print content related to a route such as a road,

Attribute information specific to the path associated with the reading position by the portable input device using a path conversion table that stores attribute information specific to the path in association with the reading position overlapping the print content in the printed matter. Route extraction means for extracting

Using a landmark table that stores a plurality of attribute information including at least latitude and longitude data of a plurality of landmarks in association with information unique to the route in the route conversion table, a unique property of the extracted route is stored. Landmark extraction means for extracting the landmark attribute information associated with the attribute information;

Storage means for storing information about landmarks extracted from the landmark table;

When displaying the route extracted by the route extraction means using the navigation data, the landmark whose attribute information is stored in the storage means is displayed using the latitude / longitude data of the landmark. Display means for displaying with,

A navigation system characterized by comprising:

[2] The portable input device reads the classification mark of the landmark attribute information printed on the printed matter,

The landmark extracting means is a landmark associated with attribute information unique to the route extracted by the route extracting means, and the classification mark classification read by the portable input device Extracting attribute information of landmarks classified into

The navigation system according to claim 1, wherein:

[3] The printed matter is printed with a plurality of coordinate patterns that can be converted into different coordinate values for each position in the paper as a pattern that can be read by the portable input device, The portable input device generates trajectory data by a plurality of coordinate values converted from a plurality of read coordinate patterns,

The attribute information unique to the route in the route conversion table is associated with the coordinate values of a plurality of coordinate patterns printed on the printed material so as to overlap the route V, and

The landmark extracting means compares a plurality of coordinate values of the trajectory data generated by the portable input device with a coordinate value of a plurality of coordinate patterns for each route stored in the route conversion table. And extracting attribute information specific to the route associated with the reading position by the portable input device,

The navigation system according to claim 1, wherein:

[4] The landmark mark of the landmark attribute information printed on the printed matter is printed so as to overlap the plurality of coordinate patterns and not to overlap the paper area on which the route is printed,

The landmark extracting means is configured to classify the classification mark when the coordinate value of the coordinate pattern within the range overlapping the classification mark of the landmark attribute information is obtained from the read data generated by the portable input device. 4. The navigation system according to claim 3, wherein the attribute information to which it belongs is extracted.

[5] The route extraction means, the landmark extraction means, and the display means are provided in a navigation body,

The portable input device is connected to the navigation main body via a communication cable, or wirelessly communicates with the navigation main body, thereby transmitting trajectory data obtained by reading a printed matter to the route extracting means. The navigation system according to claim 1, characterized in that:

[6] The display means may include a land extracted by the landmark extraction means without displaying a landmark included in the navigation data within a predetermined range from the route extracted by the route extraction means. The navigation system according to claim 1, wherein a mark is displayed.

[7] The display means displays the landmark extracted by the landmark extraction means. As for the Nanabi Bigge Gateway System, you can select the departure and departure location, or the stopover location or the destination location. The system described in claim 11, wherein the feature is characterized by the fact that it is displayed in the potential. .

[8] Along with the contents of the stamped print relating to any route, such as roadways, read by the mobile phone input device A step of reading and reading the printed printed matter on which the printable print pattern is printed;

Corresponding to the reading / reading position that overlaps with the contents of the above-mentioned imprinted printing in the above-mentioned imprinted printed matter, The above-mentioned portable path input / output device is used for the above-mentioned mobile path input / output conversion table that stores and stores unique attribute information. A step for extracting the attribute information information unique to the path that is associated with the reading / reading position according to the reading path,

In the above-described route conversion conversion table, the above-mentioned route information can be associated with information information unique to the route, and a plurality of lalandes Multiple, including at least a few latitude / longitude / longitude data that can be used in the Navi Biggest System System Using the Lalando de Markmark table that records and records the attribute information of each genus, it is specific to the route extracted and extracted above. A step for extracting the genus attribute information information of Lalando de Marmark that is associated with the existing genus attribute information information; and

Along with each of the above-mentioned route paths extracted and extracted, the above-mentioned Lalando de Marqueque is extracted and each of the above-mentioned descriptions. Latitude

How to display the display of Randoma Markku, which has a special feature. .