JP4985037B2 - Navigation system - Google Patents

Description

The present invention also relates to a navigation system.

  Patent Document 1 discloses a pen input device that can perform a mode switching operation by using an electronic pen having a mode switching switch without displaying and instructing a menu on a screen.

  Patent Document 2 discloses a navigation device. This navigation device executes the man navigation mode when the GPS antenna is attached and the vehicle speed signal is not input for 10 seconds or more. In the mannavi mode, the predetermined function set in the vehicle mode is changed for the portable mode.

Japanese Unexamined Patent Publication No. 07-160398 (abstract, claims, etc.) JP 2003-166848 A (summary etc.)

  By the way, a car navigation apparatus mounted on a vehicle such as an automobile generates a guide route by selecting a point such as a destination, and guides the route using the guide route. However, there are cases where the user wants to specify a route rather than a destination and guide the user along the route. For this reason, for example, it is conceivable that a map on which a desired route is printed is read with an electronic pen, and the route is designated to the car navigation device by handwriting at the time of reading. In addition, by using a printed map and an electronic pen, for example, it is possible to easily specify a desired route as compared with a case where a route is specified on a map displayed on a limited screen of a car navigation device. Is possible.

  However, the route specified by the user using the electronic pen and the printed map may not actually pass. For example, in a printed map, it may not be displayed that the road is one-way or a pedestrian-only road due to the scale of the map. For this reason, a user who wants to move by car may specify a road where the passage of the vehicle is prohibited as a route. In this case, the user passes the specified route in compliance with the Road Traffic Law. Can not do it. In addition, the user may designate a road that is displayed on the map as being prohibited from passing a vehicle as a route without sufficiently checking the map.

  The present invention provides a navigation system and a guide route generation method capable of generating a route that can be passed by a desired moving means by specifying a route using a printed map and a reading device such as an electronic pen. The purpose is to obtain.

  A navigation system according to the present invention includes a reading device that reads a route in a map printed on a printed matter as a guide route, an acquisition device that acquires information related to a route moving device, and a route specified by the reading device. And generating means for generating a guide route that can be passed by the moving means acquired by the acquiring means.

  The navigation system according to the present invention has the following features in addition to the above-described configuration of the invention. That is, the acquisition unit acquires information associated with at least a plurality of moving units as the moving unit. The generation unit selects a predetermined facility that stops along the route designated by the reading device, and generates a guide route that passes through the predetermined facility.

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 reading device reads the path for each moving unit acquired by the acquiring unit. Further, the generation unit selects a predetermined facility in the vicinity of the point where the moving unit is changed as a stop-by place on the way of the guide route.

The navigation system according to the present invention has the following features in addition to the components of the above-described invention. That has presentation means for presenting to add to the guide path on a facility more chosen generation hands stage as land drop.

  The navigation system according to the present invention has the following features in addition to the components of the above-described invention. That is, when the moving means acquired by the acquiring means is a vehicle and there is a section that cannot be passed by the vehicle in the route specified by the reading device, the generating means is at least in the vicinity of the section. A guide route replaced with a passable route is generated.

  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 navigation system further includes data having attribute information indicating whether or not roads are allowed to pass. Then, the generation unit determines whether or not the vehicle is allowed to pass by referring to the attribute information in the data for the route specified by the reading device.

  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 navigation system further informs that the route designated by the reader cannot be passed by the moving means acquired by the acquiring means, before the search for the guide route replaced by the generating means cannot be made. Have

  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 acquisition unit and the generation unit are provided in a navigation main body that can be attached to and detached from the vehicle and can communicate with the reading device.

  In the present invention, by specifying a route using a printed map and a reading device such as an electronic pen, it is possible to generate a route that can be passed by a desired moving means.

  Hereinafter, a navigation system and a guide route generation method according to an embodiment of the present invention will be described with reference to the drawings. In the following description, the navigation system will be described by taking as an example a car navigation system that can be used in an automobile that is a kind of vehicle. A method for generating a guide route will be described as a part of the operation of the car navigation system.

  FIG. 1 is a system configuration diagram showing a car navigation system 1 according to an embodiment of the present invention. The car navigation system 1 includes a map book 2 as a printed matter on which a map is printed, an electronic pen 3 as a reading device for reading a route in the map of the map book 2 as a guide route, and a dash of a car, for example. A navigation main body 5 is detachably installed on the board and connected to the electronic pen 3 by a USB (Universal Serial Bus) cable 4. The electronic pen 3 and the navigation main body 5 can communicate with each other by being connected by the USB cable 4.

  Note that the electronic pen 3 and the navigation main body 5 can communicate with each other by being connected by a cable other than the USB cable 4, or communicate with each other by wireless communication such as Bluetooth or a wireless LAN (Local Area Network). It may be possible.

  FIG. 2 is an explanatory diagram showing the print contents of one sheet 11 in the map book 2 in FIG. As shown in FIG. 2A, a map 12 as readable information and five marks 13 indicating moving means are printed on each paper surface 11 of the map book 2. Cars, trains, walking, bicycles, and motorcycles are drawn on the five marks 13, respectively.

  2 is printed with a dot pattern composed of a plurality of dots 16 that can be read by the electronic pen 3, as shown in FIG. 2B. The plurality of dots 16 are printed under readable information, for example, with ink that absorbs infrared rays.

  Each dot 16 constituting the dot pattern is printed at a position shifted in one of the upper, lower, left, and right directions on the paper surface 11 based on the intersections of the plurality of vertical dotted lines and the plurality of horizontal dotted lines shown in FIG. Is done. The plurality of dots 16 can be converted into a coordinate value indicating a reading position on the sheet by, for example, a combination of 6 × 6 dots 16. In addition, it is possible to uniquely specify the page of the page 11 in the map book 2 and the position in the page 11 by this coordinate value. That is, the dot pattern read by the electronic pen 3 identifies which point on the map 12 the electronic pen 3 has read in the map book 2, and which moving means the mark 13 has been read by the electronic pen 3 It is possible to specify.

  As shown in FIG. 1, the electronic pen 3 has a pen-shaped housing 21. A pole pen shaft or a stylus pen shaft is disposed at one end of the housing 21. The stylus pen shaft has a tip shape similar to that of the pole pen shaft and cannot be written. A display device 22 is disposed on the side surface of the housing 21.

  FIG. 3 is a block diagram showing a configuration of the electronic pen 3 in FIG. In the housing 21 of the electronic pen 3, together with the display device 22, an infrared LED 23 (Light Emitting Diode), an infrared camera 24, a writing pressure sensor 25, a USB I / F (Universal Serial Bus Interface) 26, and a microcomputer to which these are connected. 27, an unillustrated battery for supplying power to these is disposed.

  The microcomputer 27 of the electronic pen 3 includes a timer 28, a memory 31 that stores read data 29, a mark table 30, and the like, a CPU (Central Processing Unit) (not shown), and the like. The CPU reads and executes a program (not shown) stored in the memory 31. Thereby, the microcomputer 27 of the electronic pen 3 realizes functions as a handwriting data generation unit 32, a movement means determination unit 33, a memory management unit 34, a transmission unit 35, and the like.

  The display device 22 is a liquid crystal panel, for example, and displays display data supplied from the microcomputer 27. Specifically, as shown in FIG. 1, the display device 22 displays information on the moving means selected by the user using the electronic pen 3. The display device 22 in FIG. 1 displays the same device as that drawn in the five marks 13 of the map book 2.

  The infrared LED 23 emits infrared light. The infrared camera 24 is, for example, a CCD (Charge Coupled Device) or a CMOS (Complementary Metal Oxide Semiconductor) sensor, and periodically outputs infrared reception pattern data to the microcomputer 27. The infrared LED 23 and the infrared camera 24 are disposed toward the pen tip of the electronic pen 3. Therefore, in the state where the pen tip of the electronic pen 3 is hitting the paper surface 11 of the map book 2, for example, when the infrared light emitted from the infrared LED 23 toward the pen tip is reflected by the paper surface 11, the infrared camera 24 causes the infrared light by the reflected light to be reflected. Are periodically output to the microcomputer 27. The writing pressure sensor 25 detects writing pressure acting on the ballpoint pen shaft or the stylus pen shaft of the electronic pen 3 and periodically outputs writing pressure data to the microcomputer 27.

  The USB cable 4 is connected to the USB I / F 26. The USB I / F 26 transmits / receives data to / from another device (for example, the navigation main body 5 in FIG. 1) connected to the other end of the USB cable 4. The USB I / F 26 outputs the received data to the microcomputer 27 and transmits data supplied from the microcomputer 27.

  A timer 28 in the microcomputer 27 measures time and elapsed time.

  The handwriting data generation unit 32 analyzes data of each infrared pattern periodically supplied from the infrared camera 24, and generates a read coordinate value corresponding to the dot pattern in each pattern.

  The moving means determination unit 33 determines whether the mark 13 printed on the map book 2 has been read by the electronic pen 3. For example, the moving means determination unit 33 compares the read coordinate value generated by the handwriting data generation unit 32 with the mark table 30 stored in the memory 31 to determine whether the predetermined mark 13 has been read. In the mark table 30, moving means information indicating moving means in which coordinate value range data based on a dot pattern printed on top of the five marks 13 shown in FIG. Are stored in association with each other. When the mark table 30 includes range data including the read coordinate value, the moving means determination unit 33 extracts moving means information associated with the range data from the mark table 30.

  The memory management unit 34 manages the read data 29 stored in the memory 31. FIG. 4 is an explanatory diagram showing an example of the data structure of the read data 29 in FIG. The read data 29 has moving means information and handwriting information corresponding thereto. The moving means information in the read data 29 is moving means information extracted from the mark table 30 by the moving means determination unit 33. The handwriting information in the reading data 29 is composed of the reading coordinate value generated by the handwriting data generation unit 32, the time measured by the timer 28, and the writing pressure data by the writing pressure sensor 25.

  Note that the read data 29 in FIG. 4 includes automobile information as movement means information. In the read data 29 of FIG. 4, a plurality of read coordinate values, a plurality of times, and a plurality of writing pressure data are associated with the moving means information of the automobile. The plurality of read coordinate values indicate a route designated by the electronic pen 3 on the map 12 printed on the printed matter in order to move by the automobile.

  The transmission unit 35 manages communication by the USB I / F 26 and supplies, for example, read data 29 stored in the memory 31 to the USB I / F 26 as transmission data.

  FIG. 5 is a block diagram showing a configuration of the navigation main body 5 in FIG. The navigation body 5 includes a gyro sensor 41 that detects acceleration of movement of the vehicle, a GPS receiver 42 that receives radio waves from a GPS (Global Positioning System) satellite (not shown), a HDD (Hard Disk Drive) 43, a key device 44, It includes a touch panel 45, a liquid crystal device 46 as display means and notification means, a USB I / F 47 to which the USB cable 4 is connected, a microcomputer 48 to which these are connected, and the like. The HDD 43 stores reception data 49, a coordinate value conversion table 50, navigation data 51, guide route data 52, and the like.

  Further, the microcomputer 48 of the navigation body 5 includes a memory (not shown), a CPU (not shown), and the like. The CPU reads and executes a program (not shown) stored in the HDD 43. Thereby, the microcomputer 48 of the navigation main body 5 realizes functions as a current position generation unit 53, a reception unit 54, a guide route generation unit 55, a UI (User Interface) unit 56, and the like.

  The current position generation unit 53 generates a latitude / longitude value of the current position of the vehicle based on the radio wave received by the GPS receiver 42, or the latitude / longitude obtained by correcting the latitude / longitude value with a movement amount based on the acceleration of the gyro sensor 41. Or generate a value.

  A receiving unit 54 as an acquisition unit that acquires movement unit information and the like in the navigation main body 5 manages communication by the USB I / F 47. Then, the reception unit 54 acquires the reception data 49 of the USB I / F 47 and stores it in the HDD 43. Thus, the reception data 49 received by the USB I / F 47 is stored in the HDD 43. As described above, the USB I / F 26 of the electronic pen 3 is connected to the USB I / F 47 of the navigation body 5 by the USB cable 4. The USB I / F 26 of the electronic pen 3 transmits read data 29. In this case, in the HDD 43 of the navigation main body 5, the read data 29 acquired by the receiving unit 54 and having the moving means information and the route information designated by the electronic pen 3 is stored as the received data 49. .

  The coordinate value conversion table 50 is a table for converting the read coordinate values read by the electronic pen 3 into latitude and longitude values. The coordinate value conversion table 50 includes, for example, data in which the coordinate value of the dot pattern printed on the map book 2 is associated with the latitude and longitude values.

  The navigation data 51 includes, for example, map display data, a plurality of node data, a plurality of link data, a plurality of facility data, and the like. The map display data is data for displaying the map 12 on the liquid crystal device 46. For example, the map display data is obtained by converting the map 12 in the map book 2 into data. Node data is data of intersections and corners in the road map, and has attribute data such as latitude and longitude values of the points. The link data is data associated with a road section connecting the intersections, and has attribute data such as information on a plurality of connected nodes, traffic regulation information, and road names. The traffic regulation information is, for example, information indicating whether or not the road corresponding to the link data is allowed to pass, for example, information indicating that the road is a one-way street or a pedestrian road. The facility data is data regarding facilities such as parking lots and bicycle parking lots present in the road map, and has attribute data such as latitude and longitude values of the location of the facility.

  The guide route data 52 is data of a guide route from the departure place to the destination searched by the navigation body 5. The guide route data 52 may be data on a guide route from a departure point to a destination via a waypoint.

  The guide route generating unit 55 as the guide route generating means uses the navigation data 51 to search for a guide route from the current location to a designated destination, for example, and generates guide route data. In particular, when the reception data 49 corresponding to the read data 29 generated by the electronic pen 3 is stored in the HDD 43, the guide route generation unit 55 uses the coordinate value conversion table 50 to write the handwriting in the reception data 49. Convert to a locus represented by latitude and longitude values. The guide route generation unit 55 searches for a guide route that can be traveled by the moving means of the mark 13 selected by the electronic pen 3 based on the trajectory represented by the latitude and longitude values, and generates the guide route data 52. . In addition, the guide route generation unit 55 stores the generated guide route data in the HDD 43. As a result, the HDD 43 stores the guide route data 52.

  The UI unit 56 controls display by the liquid crystal device 46. In addition, the UI unit 56 acquires operation data from the key device 44 or the touch panel 45 and executes processing according to the operation data, or instructs the guidance route generation unit 55 to perform processing according to the operation data. . For example, when the UI unit 56 determines that an operation for displaying the guidance route has been performed, the UI unit 56 reads the guide route data 52 and the map display data in the navigation data 51 from the HDD 43, and displays the guidance route on the liquid crystal device 46 so as to overlap the map 12. Let In addition to this, for example, the UI unit 56 displays on the liquid crystal device 46 a screen for adding a stop-by place to the guidance route, a screen for notifying that the route specified by the electronic pen 3 cannot pass, and the like. Let

  The program executed by the CPU (not shown) of the navigation main body 5 described above is recorded in the HDD 43 after the navigation main body 5 is shipped, even if it is recorded in the HDD 43 before the navigation main body 5 is shipped. May be. A part of the program may be recorded in the HDD 43 after the navigation main body 5 is shipped. The program recorded in the HDD 43 after the navigation main body 5 is shipped may be a program installed on a computer-readable recording medium such as a memory card or a CD-ROM (Compact Disc Read Only Memory). In addition, a program downloaded via a transmission medium such as the Internet may be installed. The same applies to a program executed by a CPU (not shown) of the electronic pen 3.

  Further, the coordinate value conversion table 50 and the navigation data 51 are stored in the HDD 43. In addition to this, for example, the coordinate value conversion table 50 and the navigation data 51 may be recorded on a computer-readable recording medium such as a memory card or a CD-ROM that is detachable from the navigation body 5. In particular, the coordinate value conversion table 50 and the navigation data 51 may be recorded on separate recording media.

  The coordinate value conversion table 50 can be provided to the user together with, for example, the map book 2 by being stored in a recording medium that can be attached to and detached from the navigation main body 5 such as a memory card. In this case, when the user changes the map book 2, by changing the memory card attached to the navigation main body 5 in accordance with this, the read coordinate value and latitude / longitude generated by the electronic pen 3 in the car navigation system 1 are changed. Correspondence with values can be maintained. Further, the coordinate value conversion table 50 supplied by one memory card may be used in common for a plurality of map books 2 and the like.

  Next, the operation of the car navigation system 1 according to the embodiment of the present invention having the above configuration will be described.

  First, a basic operation in the case of designating a route traveled by an automobile using the map book 2 and the electronic pen 3 will be described. In this case, for example, the user first checks the vehicle mark 13 in the map book 2 with the electronic pen 3 and then traces the route in the map 12 with the electronic pen 3. If an identification mark for identifying the map book 2 from another map book 2 or the like is printed in the map book 2 as shown in FIG. Check according to 3. Thereafter, the user connects the electronic pen 3 to the navigation body 5 using the USB cable 4.

  When the user checks the car mark 13 in the map book 2 with the electronic pen 3, the infrared camera 24 of the electronic pen 3 receives the infrared light reflected by the paper surface 11 on which the car mark 13 is printed. Output pattern data. The handwriting data generation unit 32 analyzes the data of the infrared pattern and generates a reading coordinate value corresponding to the dot pattern which is printed over the mark 13 and read by the electronic pen 3. The handwriting data generation unit 32 supplies the generated read coordinate value to the moving means determination unit 33 and the memory management unit 34.

  For example, as described above, when the user checks the vehicle mark 13 in the map book 2 with the electronic pen 3 and traces the route in the map 12, the handwriting data generation unit 32 prints the vehicle mark 13 in an overlapping manner. The read coordinate value of the dot pattern to be read and the read coordinate value of the plurality of dot patterns to be printed over the traced path are supplied to the moving means determination unit 33 and the memory management unit 34.

  When the read coordinate value is generated by the handwriting data generation unit 32, the moving means determination unit 33 determines whether or not the mark 13 printed on the map book 2 is read by the electronic pen 3 using the read coordinate value. To do. Specifically, the moving means determination unit 33 reads the coordinate value range data from the mark table 30 stored in the memory 31, and determines whether or not the read coordinate value is within the range.

  When the read coordinate value is within the coordinate value range, the moving means determination unit 33 reads the moving means information associated with the coordinate value range data in the mark table 30. The movement means determination unit 33 supplies the read movement means information to the memory management unit 34 and the display device 22. Thereby, the information on the moving means of the mark 13 checked by the user with the electronic pen 3 is displayed on the display device 22 of the electronic pen 3. Here, vehicle information is displayed on the display device 22. From this display, the user can know that the automobile has been selected as the moving means by the electronic pen 3.

  Note that the moving means determination unit 33 does not supply moving means information to the memory management unit 34 and the display device 22 when there is no coordinate value range data including the read coordinate values in the mark table 30. That is, the moving means determination unit 33 supplies the moving means information corresponding to the mark 13 to the memory management unit 34 or the like based on the read coordinate value corresponding to the mark 13. Based on the corresponding read coordinate value, the moving means information is not supplied to the memory management unit 34 or the like.

  Thus, based on each infrared pattern data generated by the infrared camera 24, the memory management unit 34 prints the read coordinate value generated by the handwriting data generation unit 32 and the read coordinate value superimposed on the mark 13. If it is, moving means information is further supplied.

  Then, when new moving means information is supplied based on the infrared pattern data, the memory management unit 34 additionally registers the moving means information in the read data 29 of the memory 31. Here, the memory management unit 34 registers the automobile as the moving means information. Further, when the moving means information is not supplied based on the infrared pattern data, the memory management unit 34 acquires the current time from the timer 28 and the writing pressure data from the writing pressure sensor 25, and based on the infrared pattern data. These are additionally registered in the read data 29 together with the read coordinate values supplied.

  As a result, as shown in FIG. 4, in the read data 29, vehicle information corresponding to the mark 13 selected by the user using the electronic pen 3 is registered as movement means information. Correspondingly, a plurality of read coordinate values indicating the designated route by the moving means are registered. Each reading coordinate value is stored in association with each reading time and writing pressure data.

  When the selection of the moving means (automobile) by the electronic pen 3 and the designation of the route thereof are finished, the user connects the electronic pen 3 and the navigation body 5 using the USB cable 4. As a result, the USB I / F 26 of the electronic pen 3 and the USB I / F 47 of the navigation body 5 can communicate with each other.

  When the USB I / F 26 of the electronic pen 3 becomes communicable, the transmission unit 35 of the electronic pen 3 supplies the read data 29 stored in the memory 31 to the USB I / F 26 as transmission data. The USB I / F 26 of the electronic pen 3 transmits the supplied transmission data to the USB I / F 47 of the navigation body 5 via the USB cable 4. The receiving unit 54 of the navigation main body 5 acquires data received by the USB I / F 47 and stores it in the HDD 43. As a result, the same data as the read data 29 generated by the electronic pen 3 is stored as received data 49 in the HDD 43 of the navigation body 5.

  Note that the transmission unit 35 of the electronic pen 3 may divide and transmit the read data 29. Even in this case, when the transmission unit 35 finishes transmitting data, the HDD 43 stores the same data as the predetermined read data 29 as the reception data 49.

  FIG. 6 is a flowchart showing a guide route generation process based on route designation, which is executed by the navigation main body of FIG.

  When the new read data 29 is stored as the received data 49 in the HDD 43, the guide route generation unit 55 of the navigation body 5 confirms that the new read data has been stored (step ST1). The specified guide route generation process is started (step ST2).

  In the guide route generation processing, the guide route generation unit 55 first converts the handwriting in the received read data 29 into a locus represented by latitude and longitude values using the coordinate value conversion table 50 stored in the HDD 43. To do.

  Next, the guidance route generation unit 55 uses the navigation data 51 to search for a designated route that best matches the trajectory represented by the latitude and longitude values. Specifically, for example, the guide route generation unit 55 reproduces a trajectory by mapping a plurality of latitude and longitude values on a virtual sheet, and extracts and extracts a plurality of nodes and a plurality of links that overlap the trajectory. Using the plurality of nodes and the plurality of links, a candidate route that overlaps the trajectory represented by the latitude and longitude values or moves most along the trajectory is generated.

  At this time, when a plurality of candidate routes are generated based on, for example, two parallel road links extracted based on the trajectory represented by the latitude and longitude values, the guide route generation unit 55 One candidate route that best matches the number of corners and the relative position relationship in the candidate route with the number of corners and the relative position relationship of the trajectory represented by the latitude and longitude values is selected as the final generation route.

  After generating a specified route that best matches the trajectory represented by the latitude and longitude values, the guide route generation unit 55 determines whether the generated specified route is appropriate. In this suitability determination, for example, when another moving means is specified together with a car, a bicycle, or the like in the reception data 49, the guide route generation unit 55 performs a parking lot process for parking the car in the middle of the route. Execute (step ST3). In addition to this, for example, the guide route generation unit 55 determines whether or not the generated designated route is passable by the designated moving means (step ST4).

  In the read data 29 in FIG. 4, only the automobile is designated as the moving means. Therefore, the guidance route generation unit 55 skips the parking lot process (step ST3) and determines whether or not the generated designated route is passable by the designated moving means (automobile) (step ST4).

  The guide route generation unit 55 acquires, for example, the traffic regulation information of each link constituting the designated route and the traffic regulation information of each node from the navigation data 51, and those links and nodes are designated by the designated moving means (automobile). It is determined whether or not the vehicle can pass.

  For example, when the traffic restriction information indicating one-way traffic is included in the attribute information of the link constituting the designated route, the guide route generating unit 55 determines the traveling direction indicated by the link data and the direction in which the link data can pass. Are determined to be passable if they match, and if they do not match, it is determined that they cannot pass.

  In addition to this, for example, when the attribute information of the link data constituting the designated route includes traffic restriction information indicating, for example, a pedestrian road, the guide route generation unit 55 determines the moving means and the restriction target on the designated route. Are determined to be passable if they match, and if they do not match, it is determined that they cannot pass.

  In this way, when there is a section that is not allowed to pass by the designated moving means (automobile) in the designated route, the guidance route generation unit 55 first determines that the route designated by the electronic pen 3 and the map book 2 is the electronic pen 3. The liquid crystal device 46 displays that it cannot pass by the moving means (automobile) selected by (Step ST5). The user can know that the route designated based on this display cannot pass. Note that the guidance route generation unit 55 may display confirmation of automatic update of the designated route on the liquid crystal device 46 in addition to the indication that the passage is not possible or instead of the display that the passage is impossible.

  After that, for example, if it is determined that the update of the designated route has been approved based on the operation of the touch panel 45 or the key device 44, the guide route generation unit 55 uses the electronic pen 3 to indicate the inaccessible link and node in the designated route. Correction processing for changing to a link and a node that can be passed by the selected moving means (automobile) is executed (step ST6).

  For example, the guidance route generation unit 55 uses the navigation data 51 to search for a route between nodes at both ends of the link in the inaccessible section, and replaces the specified route with the link in the newly searched section. Generate. The guide route generation unit 55 stores the corrected designated route in the HDD 43 as a guide route (step ST7).

  FIG. 7 is an explanatory diagram in the case where there is a section that cannot be passed by the selected moving means (automobile) on the route designated by the user with the electronic pen. As shown in FIG. 7A, when the user selects the vehicle mark 13 using the electronic pen and then designates a thick line route 61 in the map 12, the passage of the vehicle is prohibited on the designated route. The section 62 is included. In this case, as shown in FIG. 7B, the guide route generation unit 55 displays on the liquid crystal device 46 that the designated route cannot pass and displays confirmation of automatic update of the route. Thereafter, as shown in FIG. 7C, the guide route generation unit 55 generates a guide route 63 in which the inaccessible route is replaced with another passable route.

  FIG. 8 is a message that the guidance route generation unit 55 displays on the liquid crystal device 46 when there is a section that runs backward on the one-way route in the designated route. The message shown in FIG. 8 has a different text from the message shown in FIG. The message prompts the user to re-specify the route.

  In the case where it is not possible to pass by the moving means specified in the designated route, for example, when automatic updating of the designated route is not permitted, the guidance route generation unit 55 does not search for the guidance route replaced by itself, The user may be instructed to replace the links and nodes that cannot be passed by the user with the links and nodes of the replaced guide route.

  Further, when there is no section in the designated route that cannot be passed by the designated moving means (automobile), the guidance route generation unit 55 stores the designated route as the guidance route 63 in the HDD 43.

  As a result of the processing for generating the guide route 63 by the guide route generator 55 described above, the HDD 43 has a route along the route specified by the user with the map book 2 and the electronic pen 3 and has been selected by the electronic pen 3. A route that can be moved by the moving means (automobile) is stored as guide route data 52.

  The UI unit 56 reads the guide route data 52 stored in the HDD 43 and causes the liquid crystal device 46 to display a screen for confirming the guide route 63. The UI unit 56 may read the map display data in the navigation data 51 together with the guide route data 52, and display a display screen on the liquid crystal device 46 so that the guide route 63 is superimposed on the map.

  Thereafter, when the vehicle in which the navigation main body 5 is installed starts to move or a predetermined guidance start operation is performed, the UI unit 56 of the navigation main body 5 starts route guidance based on the guide route data 52 stored in the HDD 43. To do. The UI unit 56 causes the liquid crystal device 46 to display, for example, a mark 13 indicating the current position generated by the current position generation unit 53 and a part of the guide route 63 on a map based on the navigation data 51. When the current position approaches the corner of the guide route 63 or the like, the UI unit 56 notifies that fact by voice and guides the route. When the UI unit 56 determines that the end point of the guidance route 63 has been reached, the route guidance is terminated. Further, when the user gets off the car and moves, the user removes the navigation body 5 from the car and brings it.

  Next, the operation of the car navigation system 1 in the case of designating a route to be moved by a plurality of moving means using the map book 2 and the electronic pen 3 will be described.

  FIG. 9 is an explanatory diagram of a route designation method by a plurality of moving means. Here, a case where an automobile is designated as the first moving means by the electronic pen 3 and walking is designated as the second moving means will be described as an example. In this case, the user first checks the mark 13 of the car in the map book 2 with the electronic pen 3, traces the route 71 traveled by the car, and then moves the walking mark 13 in the map book 2 to the electronic pen. 3 is traced along the path 72 that moves on foot.

  FIG. 10 is a diagram illustrating an example of the read data 29 generated in the electronic pen 3 when the route 71 moving by the automobile is first specified and then the route 72 moving by foot is specified. In the read data 29, moving means information indicating a car and moving means information indicating a walk are registered in the designated order. Each moving means information stores a plurality of read coordinate values indicating the designated routes 71 and 72 in association with each other. Furthermore, each reading coordinate value is stored in association with each reading time and writing pressure data.

  When the electronic pen 3 is connected to the navigation main body 5 by the USB cable 4, the transmission unit 35 of the electronic pen 3 transmits the read data 29 stored in the memory 31 to the reception unit 54 of the navigation main body 5. As a result, the same data as the read data 29 shown in FIG. 10 is stored as received data 49 in the HDD 43 of the navigation body 5.

  When new read data 29 is stored as received data 49 in the HDD 43, the guide route generation unit 55 of the navigation body 5 executes the processing of FIG. 6 and performs the generation processing of the guide route specified by the read data 29. Start (step ST2). The guide route generation unit 55 converts handwriting by a plurality of read coordinate values for each moving means in the read data 29 into a trajectory for each moving means represented by latitude and longitude values, and the moving means that best fits each trajectory. Search for each designated route.

  When a route for each moving unit is designated by the electronic pen 3, the end point of the designated route by the previous moving unit may not match the start point of the designated route by the subsequent moving unit. At this time, the guide route generation unit 55 selects any one of the end point of the previous designated route and the start point of the subsequent designated route as the means change point, or selects the intermediate point as the means change point. Then, the previous designated route is generated so that the end point of the previous designated route is the means change point, and the subsequent designated route is created so that the start point of the subsequent designated route is the means change point. do it.

  After generating the specified route for each moving means by searching, the guide route generating unit 55 determines whether the generated specified route is appropriate. Here, an automobile and a walk are designated as the moving means. The guide route generation unit 55 performs a parking lot process in order to park the car in the middle of the route.

  FIG. 11 is a flowchart showing a detailed process flow of the parking lot process (step ST3) in FIG.

  In the parking lot process (step ST3), the guide route generation unit 55 first checks the presence / absence of a means change point as a point for switching the moving means (step ST11). As shown in FIG. 10, when a car and a walk are specified in the read data 29, the guide route generation unit 55 changes the means for changing the moving means from the car to the foot during the generation of the guide route. Is selected. In this case, the guidance route generation unit 55 determines that there is a means change point.

  When only the designated route of one moving means is designated by the electronic pen 3, the guide route generating unit 55 does not select the means changing point during the generation of the guide route. Therefore, the guide route generation unit 55 determines that there is no means change point (No in step ST11), further confirms that there is no unprocessed means change point (step ST18), and ends the parking lot process.

  When it is determined that there is a means change point (Yes in step ST11), the guidance route generation unit 55 determines whether it is necessary to search for a parking lot or a bicycle parking lot for each means change point (step ST12). ). For example, when a means change point for changing the moving means from a car to a foot is selected, the guide route generation unit 55 determines that it is necessary to search for a parking lot. On the other hand, for example, when a means change point for changing the moving means from walking to train is selected, the guide route generation unit 55 determines that it is not necessary to search for a parking lot or a bicycle parking lot. When it is not necessary to search for a parking lot or a bicycle parking lot (in the case of No in step ST12), the guide route generation unit 55 checks whether or not there is an unprocessed means change point (step ST18).

  When it is necessary to search for a parking lot or a bicycle parking lot for the means change point (in the case of Yes in step ST12), the guidance route generation unit 55 displays on the liquid crystal device 46 that the parking lot or the bicycle parking lot is searched (step ST13). .

  FIG. 12 is an example of a display screen displayed on the liquid crystal device 46 in FIG. 5 for searching for a parking lot or a bicycle parking lot.

  After that, for example, when it is determined that a search for a parking lot or the like has been approved based on the operation of the touch panel 45 or the key device 44, the guide route generation unit 55 uses the facility data in the navigation data 51 to most A nearby parking lot or bicycle parking lot is searched (step ST14).

  After extracting the parking lot or bicycle parking lot closest to the means change point by searching, the guidance route generation unit 55 displays a screen for adding the searched parking lot or bicycle parking lot as a stopover place in the guidance route on the liquid crystal device 46. (Step ST15).

  FIG. 13 is an example of a stoppage addition confirmation screen displayed on the liquid crystal device 46 in FIG. In FIG. 13, a screen from the departure point to the vicinity of the facility B via the vicinity of the facility A based on the designation in FIG. 9 is displayed. For example, based on this display, the user can use the arrow 81 between the characters “departure place” and the characters “near facility A” or the arrow between the characters “near facility A” and “near facility B”. 82 is selected.

  Then, for example, based on the screen displayed on the liquid crystal device 46, the arrow (81 or 82) indicating one section is selected by the user as a section for adding a parking lot or a bicycle parking lot (Yes in step ST16). Then, the guidance route generation unit 55 adds a parking lot or a bicycle parking lot to the guidance route data 52 as a new stop between the points before and after the selected section (step ST17).

  In addition, the guidance route generation unit 55 executes route search using the navigation data 51 and adds a route between the parking lot or bicycle parking lot to be added and the means change point to the guidance route data 52. At this time, the guide route generation unit 55 may add a route that reciprocates between the added parking lot or bicycle parking lot and the means change point, but adds a route corresponding to the section selected by the user. You may do it.

  For example, when the section of the designated route of the car is designated by the arrow 81 in FIG. 13, the guide route generation unit 55 changes the end point of the designated section of the car from the means change point to the parking lot, and from the parking lot. What is necessary is just to add the route by the walk which moves to a means change point. Thereby, the guide route generation unit 55 makes use of the route specified by the user and the moving means as the guide route to the maximum, walks to the means change point after parking the car in the parking lot, and further moves on foot. A route desired by the user can be generated.

  FIG. 14 is a diagram illustrating an example of a corrected guide route generated by the guide route generation unit 55 when a section of the designated route of the automobile is specified by the arrow 81 in FIG. The guide route of FIG. 14 includes a route 91 that moves from the departure place to the parking lot by car, a route 92 that moves from the parking lot to the facility A on foot, and a route 93 that moves from the facility A to facility B on foot. It is configured.

  When the section of the designated walking route is designated by the arrow 82 in FIG. 13, the guide route generating unit 55 changes the starting point of the designated walking section from the means changing point to the parking lot, and also changes the means changing point. What is necessary is just to add the route by the car which moves from to the parking lot. As a result, the guide route generation unit 55 uses the route specified by the user and the moving means as the guide route to the maximum, parks the car after stopping at the means change point by car, and further moves on foot. Can generate the desired path.

  When the search process for a parking lot or the like for one means change point is completed, the guidance route generation unit 55 confirms whether there is an unprocessed means change point (step ST18). And when the unprocessed means change point remains (in the case of Yes at step ST18), the guidance route production | generation part 55 repeats the process from step ST14 to ST17, and about the unprocessed means change point. Search for necessary parking lots and bicycle parking lots, and update designated routes. When there is no unprocessed means change point (No in step ST18), the guide route generation unit 55 ends the parking lot process (step ST3 in FIG. 6).

  When the above parking lot processing is completed, the guide route generation unit 55 generates a guide route for moving a car or a bicycle while making the best use of the route specified by the user and the moving means. Further, the guide route generation unit 55 determines whether or not the guide route can be passed by the designated moving means (step ST4), and if the moving route by each moving means is not passable. The guide route corrected to be accessible in steps ST5 and ST6 is stored in HDD 43 (step ST7).

  By the guide route generation process by the guide route generation unit 55 described above, the HDD 43 makes a plurality of movements selected by the electronic pen 3 while making the most of the route specified by the user using the map book 2 and the electronic pen 3. A route that can be moved by means (car and foot) is stored as guide route data 52.

  As described above, in this embodiment, in the car navigation system 1, the electronic pen 3 reads the mark 13 of the moving means in the map book 2 and the route in the map 12, and the receiving unit 54 of the navigation body 5 is used as the electronic pen. 3 receives the read data 29, and the guidance route generation unit 55 of the navigation body 5 generates a guidance route based on the designated route designated by the electronic pen 3 and can be passed by a desired moving means.

  Therefore, the user can designate a desired route as a route used in the navigation body 5 using the electronic pen 3 and the map book 2. The user does not need to display the map 12 on the liquid crystal device 46 of the navigation body 5 and specify the route on the navigation body 5 in order to specify the route. The user does not need to perform the troublesome work of scrolling the map 12 displayed on the navigation body 5 or switching the scale in order to specify the route.

  In addition, when the designated route is selected by the electronic pen 3 and cannot be passed by moving means such as an automobile, the guide route generation unit 55 corrects the designated route. Generate a route. For example, when the information on the selected moving means is information on a vehicle such as an automobile and there is a section that cannot be passed by the vehicle in the route specified by the electronic pen 3, the guide route generation unit 55 A guide route is generated by replacing the section with a route in the vicinity that is accessible by the vehicle. In addition, the guide route generation unit 55 refers to attribute information indicating whether or not roads are allowed to pass in the navigation data 51 and determines whether or not a vehicle such as an automobile is allowed to pass.

  Therefore, even if the user roughly specifies a desired route in the map book 2 or specifies a route that cannot be passed, the guide route generation unit 55 selects a guide route that can be moved by a desired moving means. Can be generated. The car navigation system 1 can generate a route that can be passed along the designated route and by a desired moving means by the route designated by the user using the printed map 12 and the electronic pen 3. it can.

  Further, in this embodiment, the guidance route generation unit 55 searches for the replaced guidance route after notifying that the liquid crystal device 46 cannot pass. Therefore, even if a guide route that is partially different from the route specified by the user is generated as the guide route, the user can know in advance that the route has been changed because it cannot pass. The user does not specify the route that cannot be passed many times.

  In this embodiment, when the receiving unit 54 of the navigation body 5 receives the read data 29 for selecting a plurality of moving means including at least a car or a bicycle, the guide route generating unit 55 is in the middle of the designated route. A parking lot or bicycle parking lot as a predetermined facility to stop by is selected by searching, and a guide route passing through the parking lot or bicycle parking lot is generated. Therefore, the user can move along a route in which a car or bicycle is placed and moved in the middle of the designated route.

  In this embodiment, the guide route generation unit 55 searches for a parking lot or a bicycle parking lot as a predetermined facility in the vicinity based on the end point of the designated route of the car or bicycle, and the liquid crystal device 46 of the navigation main body 5 Then, a screen for adding the searched parking lot or bicycle parking lot as a stop-by place to stop in the middle of the guide route is displayed. Therefore, the user can specify the order of stopping of the parking lot or the bicycle parking lot automatically selected by the guide route generation unit 55. For example, the user can designate a parking lot or the like as a stopover stop before the end point of an automobile, a bicycle or a public transportation route, or as a stopover stop after the end point. Note that a screen for adding the searched parking lot or bicycle parking lot as a stop-by place that stops in the middle of the guidance route may be presented to the user by something other than the liquid crystal device 46.

  The above embodiment is an example of a preferred embodiment of the present invention, but 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 there.

  In the above embodiment, a dot pattern is printed on each paper surface 11 of the map book 2 as a pattern that can be read by the electronic pen 3 so as to overlap the map 12 and the mark 13. In addition to this, for example, a bar code, a two-dimensional code such as a QR (Quick Response) code, or the like may be printed on each paper surface of the printed matter such as the map book 2 as a pattern that can be read by the electronic pen 3. . The electronic pen can obtain the read coordinate value of the portion of the read paper surface by coding the bar code or QR code with the coordinate value indicating the position in the paper surface.

  In the above embodiment, the electronic pen 3 designates a route by reading the map 12 in one map book 2. In addition to this, for example, the electronic pen 3 may read a map 12 of a tourist information sheet other than the map book 2, a plurality of map books 2, and the like to designate a route. Further, the mark 13 for designating the moving means may be printed on a separate sheet from the map book 2.

  In the embodiment described above, the electronic pen 3 selects the moving means by reading the mark 13 printed on the map book 2. In addition to this, for example, the electronic pen 3 may have a switch for selecting a moving means. Furthermore, for example, the electronic pen 3 may be dedicated for each moving means. Still further, for example, the moving means may be selected on a moving means selection screen displayed on the navigation body 5.

  FIG. 15 is a side view showing an appearance of the electronic pen 3 having a switch for selecting a moving means. The electronic pen 3 has a left button 101 and a right button 102 arranged below the display device 22. When the left button 101 or the right button 102 is operated, the moving means selected by the electronic pen 3 is switched, and the mark 13 of the moving means displayed on the display device 22 is switched accordingly. Further, the memory management unit 34 only has to additionally register information of a new moving unit in the read data 29 when this button operation is performed.

  FIG. 16 is a side view showing the electronic pen 3 for each moving means. FIG. 16A shows an electronic pen 111 dedicated to an automobile, and FIG. 16B shows an electronic pen 112 dedicated to walking. In the case of this modification, for example, the user designates a route for the automobile by tracing the map 12 using the electronic pen 111 dedicated for automobiles, and the route for walking by tracing the map 12 using the electronic pen 112 dedicated for walking. Is specified. Thereafter, the user connects the electronic pen 111 dedicated to the automobile and the electronic pen 112 dedicated to walking to the navigation main body 5 in order according to the moving order. As a result, the read data 29 for designating the route for the automobile and the read data 29 for designating the route for walking are stored in the HDD 43 of the navigation body 5 as the reception data 49.

  In the above embodiment, the coordinate value conversion table 50 converts the read coordinate values into latitude and longitude values. In addition to this, for example, the coordinate value conversion table 50 may be a table that converts a read coordinate value into a road name. In the case of this modification, the guide route generation unit 55 converts the handwriting for each moving means in the received read data 29 into a road name corresponding to the trajectory. The guide route generation unit 55 may search for a designated route from the navigation data 51 based on the road name.

  In the above embodiment, the guide route generation unit 55 uses the traffic regulation information in the navigation data 51 to determine whether or not the designated route can be passed by the moving means. In addition to this, for example, the guide route generating unit 55 uses the traffic regulation information provided by a CD-ROM or a memory card, or the traffic regulation information received (acquired) from the Internet or the like to specify the designated route by the moving means. You may make it judge whether it can pass. In addition, the guide route generation unit 55 may cause the user to additionally specify a guide route that replaces the inaccessible section.

  In the said embodiment, the electronic pen 3 is used as an apparatus which reads the designated path | route in the printed map 12. FIG. In addition, for example, as a device that reads a designated route in the printed map 12, a device that can be carried together with the map book 2, such as a portable telephone terminal with a camera, may be used.

  In the above-described embodiment, the guide route that can be passed based on the designated route by reading the map 12 is generated in the navigation main body 5 that is connected to the electronic pen 3 and is detachable from the vehicle. In addition to this, for example, a guide route that allows passage based on a designated route by reading the map 12 may be generated in a personal computer, a portable information terminal that can obtain the navigation data 51 by communication, or the like. Then, the generated guidance route may be used in the generated device or may be used for route guidance in another device such as a portable information terminal or a mobile phone terminal. Furthermore, instead of the electronic pen 3 and the navigation main body 5, a portable terminal or the like in which these functions are integrated may be used.

  In the above embodiment, when a plurality of moving means including at least a car or a bicycle is designated, the guide route generation unit 55 stops at a predetermined facility such as a parking lot or a bicycle parking lot where the car or bicycle is parked. As selected. In addition to this, for example, when a plurality of transportation means including public transportation such as trains, buses, taxis, etc. are specified, the guide route generation unit 55 may be a predetermined station such as a stop station, a stop, or a taxi stand in the public transportation. You may make it select a facility as a stop-in facility.

  The present invention can be suitably used in a navigation system that specifies a route to be guided.

FIG. 1 is a system configuration diagram showing a car navigation system according to an embodiment of the present invention. FIG. 2 is an explanatory diagram showing the print contents of one page in the map book of FIG. FIG. 3 is a block diagram showing a configuration of the electronic pen in FIG. FIG. 4 is an explanatory diagram showing an example of the data structure of the read data in FIG. FIG. 5 is a block diagram showing a configuration of the navigation main body in FIG. FIG. 6 is a flowchart showing a guide route generation process based on route designation, which is executed by the navigation main body of FIG. FIG. 7 is an explanatory diagram of processing in a case where there is a section that is not allowed to pass by the selected moving means (automobile) in the designated route. FIG. 8 shows a message displayed on the liquid crystal device by the guidance route generation unit when there is a section that runs backward on the one-way route in the designated route. FIG. 9 is an explanatory diagram of a method for designating a route by a plurality of moving means. FIG. 10 is a diagram showing an example of read data generated by the electronic pen when a route for moving by car first and then walking is specified. FIG. 11 is a flowchart showing a detailed process flow of the parking lot process (step ST3) in FIG. FIG. 12 is an example of a screen that is displayed on the liquid crystal device in FIG. 5 to notify that a parking lot or a bicycle parking lot is to be searched. FIG. 13 is an example of a screen for confirming addition of a stop-by place displayed on the liquid crystal device in FIG. FIG. 14 is a diagram illustrating an example of a corrected guide route generated by the guide route generation unit when the lower arrow in FIG. 13 is selected as an additional section of a stopover. FIG. 15 is a side view showing an external appearance of the electronic pen as a modification of the electronic pen in FIG. 1 and having a switch for selecting a moving means. FIG. 16 is a side view showing a variation of the electronic pen in FIG. 1 and showing the electronic pen for each moving means.

Explanation of symbols

1 Car navigation system (navigation system)
2 Map book (printed matter)
3 Electronic pen (reading device)
5 Navigation body 54 Receiver (Acquisition means)
55 Guide route generation unit (generation means)
46 Liquid crystal device (display means, notification means)
111 Automotive electronic pen (reading device)
112 Walking-only electronic pen (reading device)

Claims (8)

A reading device that reads the route in the map printed on the printed material to designate the route, and
An acquisition unit configured to acquire information about the mobile unit before Symbol path,
A guidance route based on the route specified by the previous SL reader, a generating means for generating a passable guide route by pre Symbol moving means obtained by pre Symbol acquisition means,
A navigation system comprising: The acquisition means acquires information associated with at least a plurality of movement means as the movement means,
The navigation system according to claim 1, wherein the generation unit selects a predetermined facility that stops along the route specified by the reading device, and generates a guide route that passes through the predetermined facility. The reading device reads a path for each moving unit acquired by the acquiring unit,
The navigation system according to claim 2, wherein the generation unit selects a predetermined facility in the vicinity of a point where the moving unit is changed as a stop-by place on the way of the guide route. Have a presentation means for presenting to add to the guide route as a destination drop the predetermined facility selected by the previous SL generation means,
The navigation system according to claim 3. When the moving means acquired by the acquiring means is a vehicle and there is a section that cannot be passed by the vehicle in the route specified by the reading device, the generating means is at least in the vicinity of the section the navigation system of claim 1, wherein generating a guidance route is replaced to passable route by pre Symbol vehicle. It has data with attribute information indicating whether or not roads can pass
It said generating means, for the given path by the reading device, with reference to the previous SL attribute information before Symbol data, the navigation system according to claim 5, wherein the determining the passage propriety of the vehicle. In the case where the route specified by the reading device cannot be passed by the moving means acquired by the acquiring means, it has a notifying means for notifying that it cannot pass before searching for the guide route replaced by the generating means. The navigation system according to claim 5, wherein:   The navigation system according to claim 1, wherein the acquisition unit and the generation unit are provided in a navigation main body that can be attached to and detached from the vehicle and can communicate with the reading device.

Images