JP2009244737A - Navigation system, navigation device, information display method, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To display information in a diversified manner. <P>SOLUTION: A car navigation system 10 (a navigation system) includes: a printed medium 15 whereon a pattern convertible into a coordinate value indicating a position shown on a printing medium 15 is printed; a pattern reading section reading the pattern; a generating section generating the coordinate value from the read pattern; a display section 40a for displaying an electronic map; and a control section which stores the coordinate value as trajectory information when the coordinate value is transmitted, generates present position information, and associatively stores the present position information as the display position information of the trajectory information, and displays the trajectory information on the display section 40a on the basis of the display position information. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a navigation system, a navigation device, an information display method, and a program.

  Patent Document 1 discloses a navigation device that searches for character information existing within a predetermined range on a map, stores the character information, and can use the stored character information when inputting the character information. .

JP 05-108007 A (claims, etc.)

  As a means for adding and displaying new information on the navigation device, other than the means for displaying on the display by referring to other character information stored therein, such as the navigation device disclosed in Patent Document 1. Further, only means for receiving traffic information and the like by VICS from the outside and displaying them on a display, and means for upgrading an electronic map or the like stored in the navigation device. Therefore, the information provided in advance by the navigation device tends to be uniform information and is not interesting.

  In view of the above-described problems, an object of the present invention is to provide a navigation system, a navigation device, an information display method, and a program that can display information that is not uniform information.

A navigation system according to the present invention includes a print medium on which a pattern that can be converted into a coordinate value indicating a position written on the print medium is printed,
A pattern reading unit that reads a pattern, a generation unit that generates a coordinate value from the read pattern, a display unit that can display an electronic map, and a coordinate value stored as trajectory information when the coordinate value is transmitted And a control unit that generates current position information, associates and stores the current position information as display position information of the trajectory information, and displays the trajectory information on the display unit based on the display position information.

  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 control unit associates and stores the locus information recording unit that records the transmitted coordinate values as locus information, the position information generation unit that generates the current position information, and the current position information as the display position information of the locus information. A trajectory information management unit that displays trajectory information on the display unit based on the display position information.

  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 control unit displays the trajectory information on the display unit when the display position information falls within the display range of the display unit.

  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 control unit has a route search unit that can perform route search, and when the display position information falls within a predetermined range from the route determined by the route search unit, causes the display unit to display the trajectory information. Is.

  The navigation system according to the present invention has the following features in addition to the above-described configuration of the invention. That is, it has a data output unit that can output the trajectory information and the display position information to the external recording medium.

  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 control unit generates current position information when the trajectory information is transmitted, and stores the current position information as display position information for displaying the trajectory information.

  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 control unit detects a predetermined pattern from the trajectory information, and stores only the coordinate values included in the range of coordinate values constituting the predetermined pattern.

  The navigation system according to the present invention has the following features in addition to the above-described configuration of the invention. That is, a map corresponding to an electronic map displayed on the display unit is printed on the print medium, and the control unit can convert the coordinate value on the print medium and the position information on the map print medium. A conversion unit; and a pattern detection unit that detects a predetermined pattern from the trajectory information. The coordinate value that matches the predetermined pattern is converted into medium position information on the map print medium, and the trajectory information is displayed. The converted medium position information is stored as display position information.

  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 control unit has a data input unit that can input external information, compares the date and time when the trajectory information is stored with the creation date and time of the external information input by the data input means, and the difference between the creation dates and times of both Is stored within the predetermined time in association with the trajectory information.

  The navigation system according to the present invention has the following features in addition to the above-described configuration of the invention. That is, when displaying the trajectory information on the display unit, the control unit displays external information on the display unit.

  The navigation apparatus according to the present invention stores a locus information when a position information generation unit capable of generating current position information, a display unit capable of displaying an electronic map, and locus information is transmitted, A control unit that generates information, associates and stores the current position information as display position information of the trajectory information, and displays the trajectory information on the display unit based on the display position information.

  The navigation device according to the present invention has the following features in addition to the above-described configuration of the invention. That is, the control unit displays the trajectory information on the display unit when the display position information falls within a predetermined range of the electronic map displayed on the display unit.

  The navigation device according to the present invention has the following features in addition to the above-described configuration of the invention. That is, the control unit has a route search unit that can search for a route, and when the display position information enters a predetermined range from the route determined by the route search unit, the control unit displays the locus information on the display unit. is there.

  The navigation device according to the present invention has the following features in addition to the above-described configuration of the invention. That is, the control unit generates current position information when the trajectory information is recorded, and stores the current position information in association with the display position information for displaying the trajectory information.

  The information display method according to the present invention includes a step of generating current position information, a step of storing the trajectory information when the trajectory information is transmitted, and a current position information stored in association with the display position information of the trajectory information. And a step of displaying trajectory information based on the display position information.

  The program according to the present invention is a program for causing a computer to function as any one of the navigation devices described above.

  According to the present invention, it is possible to provide a navigation system, a navigation apparatus, an information display method, and a program that can display information that is not uniform information.

  Hereinafter, a navigation system, a navigation device, an information display method, and a program according to embodiments 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 10 that is installed in a vehicle such as an automobile and that can read trajectory information drawn with an electronic pen on a dedicated sheet as a print medium and display it on an electronic map. To do. The navigation device will be described as the car navigation device 40 of the car navigation system 10. The information display method and program will be described as a part of the operation of the car navigation system 10.

(Overall description of the car navigation system 10)
FIG. 1 is a system configuration diagram showing a car navigation system 10 according to an embodiment of the present invention. The car navigation system 10 includes a dedicated sheet 15 as a print medium, an electronic pen 20 for selecting a position in the dedicated sheet 15, and a car navigation device 40 as a navigation device capable of communicating with the electronic pen 20. The main component. Note that the car navigation device 40 may be fixedly installed on the vehicle or may be installed so that it can be removed from the vehicle.

  As a basic function of the car navigation system 10, as shown in FIG. 1, when the electronic pen 20 draws or traces on the dedicated sheet 15 like the locus X1, the locus X2 that is the same as the locus X1 is displayed on the display 40a of the car navigation device 40. Can be displayed. Hereinafter, each component of the car navigation system 10 will be described.

(Description of dedicated sheet 15)
FIG. 2 is an explanatory view showing a dedicated sheet 15A identical to the dedicated sheet 15 in FIG. 2 is printed with a dot pattern 17 composed of a plurality of dots 16 over the entire surface. The dot pattern 17 is printed on a sheet with, for example, ink that absorbs infrared rays, and can be converted into a coordinate value indicating a position in the dedicated sheet 15A by, for example, 6 × 6 dots 16.

  This coordinate value can be expressed by, for example, a two-dimensional coordinate value (not shown) based on (x, y) with the upper left corner of the dedicated sheet 15A in FIG. 2 as a reference. The electronic pen 20 recognizes the dot pattern 17 by receiving infrared rays reflected by portions other than the dot pattern 17 by the infrared camera 23 (see FIG. 3). Then, by reading the dot pattern 17 with the electronic pen 20, a unique coordinate value indicated by the read dot pattern 17 on the dedicated sheet 15A can be obtained.

  The dot pattern 17 is composed of an extremely large number of dots 16, and the dots 16 are printed with ink that absorbs infrared rays at intervals of 0.3 mm, as shown in an enlarged manner in the center of FIG. These dots 16 are printed with a predetermined amount shifted from the center of the grid in any of the upper, lower, left and right directions, as shown on the right in FIG.

  This dot 16 is composed of 6 × 6 = 36 dots to form one dot pattern 17, and each dot 16 has four combinations, so that 1 × 1.8 mm × 1.8 mm size Since one dot pattern 17 has combinations of 4 to the 36th power, it is possible to uniquely identify one dot pattern 17 by not using the same dot pattern 17.

  In addition, when there are a plurality of dedicated sheets 15A, as a method of knowing which page is designated, for example, there is a method of storing information about a page in the dot pattern 17. In addition, there is a method of storing data using coordinate values of the same coordinate system for all pages. Further, when all the pages are arranged on a plane to form a large sheet, the coordinate system can be set so that the upper left corner of the large sheet is the origin. Of course, the origin of the coordinate system may be other than the upper left, such as the center or the upper right.

(Description of the electronic pen 20)
FIG. 3 is a block diagram showing a detailed configuration of the electronic pen 20 and the car navigation device 40 in FIG. In the configuration shown in FIG. 3, information such as coordinate values is transmitted from the electronic pen 20 to the car navigation device 40, but it is also possible to transmit information from the car navigation device 40 to the electronic pen 20.

  The electronic pen 20 has a pen-shaped housing 21 as shown in FIG. 1, and as shown in FIG. 3, an infrared LED (Light Emitting Diode) 22, an infrared camera 23, a communication I / F (Inter Face) 24, A microcomputer 25 to which these are connected, a battery (not shown) for supplying power to them, and the like are the main components.

  The infrared camera 23 is, for example, an infrared CCD (Charge Coupled Device) or CMOS (Complementary Metal-Oxide Semiconductor) sensor, and periodically outputs received infrared pattern data to a pattern reading unit 29 described later. The infrared LED 22 and the infrared camera 23 are disposed toward the pen tip of the electronic pen 20. Thereby, the infrared camera 23 of the electronic pen 20 can receive the reflected light from the infrared dedicated sheet 15A irradiated by the infrared LED 22 toward the pen tip, and can periodically read the dot pattern 16 near the pen tip. .

  The communication I / F 24 is an interface such as Bluetooth, infrared communication, and wireless LAN (Local Area Network), and other devices (here, the car navigation device 40 shown in FIG. 3) according to a transmission signal from the transmission unit 31 described later. Data is transmitted to and from the communication I / F 41). In addition, the communication I / F 24 is connected to another device by a wired communication cable such as a USB (Universal Serial Bus) I / F or an E / N (Ethernet (registered trademark)) cable. You may communicate.

  The microcomputer 25 includes a timer 26 that measures time and elapsed time, a memory 27, a pattern reading unit 29, a generation unit 30, a transmission unit 31, a CPU (Central Processing Unit) (not shown), and the like as main components.

  The memory 27 stores various data such as read data 28. The CPU reads and executes a program (not shown) stored in the memory 27. Thereby, the microcomputer 25 of the electronic pen 20 realizes functions such as the pattern reading unit 29, the generation unit 30, and the transmission unit 31.

  The pattern reading unit 29 reads each pattern data periodically output from the infrared camera 23 and stores the pattern data in the memory 27. The generation unit 30 reads the pattern read by the pattern reading unit 29 from the memory 27, analyzes it, and generates a coordinate value. The microcomputer 25 associates the generated coordinate value with the current time measured by the timer 26 and stores it in the memory 27. As a result, the read data 28 is stored in the memory 27. The read data 28 includes a plurality of coordinate values generated by the generation unit 30 and a plurality of time information indicating the reading time of each coordinate value.

  The transmission unit 31 manages communication by the communication I / F 24 of the electronic pen 20. The transmission unit 31 supplies the read data 28 stored in the memory 27 to the communication I / F 24 of the electronic pen 20 for transmission.

(Description of the car navigation device 40)
The car navigation apparatus 40 includes a communication I / F 41, a liquid crystal device 42 that functions as a display unit 40a, an output device 43 that functions as a data output unit, an input device 44 that functions as a data input unit, and a GPS receiving device 45, a microcomputer 46 as a control unit to which these are connected is a main component.

  Since the communication I / F 41 is the same as the communication I / F 24 of the electronic pen, description thereof is omitted. The liquid crystal device 42 serving as the display unit 40a displays data such as maps and route guidance results, images, and the like. The output device 43 that functions as a data output unit is a device that can output data stored in the car navigation apparatus 40 to an external recording medium such as a CD or a USB memory. The input device 44 that functions as a data input unit is a device that can input (record) data into the memory 48 in the car navigation apparatus 40. The GPS receiving device 45 is a device that can receive traffic information by GPS.

  The microcomputer 46 that functions as a control unit includes a CPU (not shown), a data acquisition unit 47, a memory 48, a UI (User Interface) unit 49, a position information generation unit 50, a data analysis unit 51, a data recording unit 52, and a path. The search unit 53 and the like are main components.

  The CPU reads and executes a program (not shown) stored in the memory 48. Thereby, the microcomputer 46 of the car navigation device 40 realizes functions such as a data acquisition unit 47, a UI unit 49, a position information generation unit 50, a data analysis unit 51, a data recording unit 52, and a route search unit 53. .

  The data acquisition unit 47 manages communication by the communication I / F 41 of the car navigation device 40. Note that the communication I / F 41 of the car navigation device 40 receives data from the communication I / F 24 of the electronic pen 20.

  The memory 48 stores various data. Specifically, the trajectory information table 54 as a trajectory information recording unit, the trajectory management information table 55 as a trajectory information management unit, a scale table 56, and coordinate conversion as a conversion unit. Various data such as various databases such as a table 57, received data 58, navigation data 59, guidance route data 60, and a program (not shown) for operating each function of the car navigation device 40 are stored. The UI unit 49 has a function of providing an interface between the liquid crystal device 42, the output device 43, the input device 44, the GPS receiving device 45, and the microcomputer 46 described above.

  The position information generation unit 50 has a function of generating a latitude value and a longitude value indicating the current position information of the vehicle based on the radio wave received by the GPS receiving device 45. The position information generation unit 50 is obtained by these functions when the car navigation device 40 has a function of receiving a gyro sensor, an FM (Frequency Modulation) radio wave for D-GPS (Differential-Global Positioning System), or the like. The latitude value and longitude value of the current position of the vehicle may be generated based on the information, or the latitude value and longitude value generated based on the GPS receiving device 45 may be corrected based on these functions.

  The data analysis unit 51 has a function of collecting a plurality of coordinate values as one piece of trajectory information. Further, the data analysis unit 51 has a function of generating and associating (linking) the current position information of the own vehicle when a plurality of coordinate values are collected as one piece of trajectory information. In addition, when the received data 58 as the read data 28 is stored in the memory 48, the data analyzing unit 51 uses the coordinate conversion table 57 and the scale table 56 and the received data 58 to extract points. It has a function to determine conditions.

  The data recording unit 52 has a function of storing the trajectory information collected by the data analysis unit 51 in the memory 48. Thus, the reception data 58 and the like are stored in the memory 48.

  The route search unit 53 has a function of searching for a guide route using the navigation data 59. For example, the route search unit 53 stores the guide route generated by the search in the memory 48. As a result, the guide route data 60 is stored in the memory 48.

  The trajectory information table 54 as a trajectory information recording unit is a database that stores trajectory information collected by the data analysis unit 51 and time information about coordinate values constituting the trajectory information.

  FIG. 4 is a diagram showing an example of the data structure of the trajectory information table 54 in FIG. As shown in FIG. 4, the trajectory information table 54 has an ID for each trajectory information, coordinate values of the trajectory information on the X and Y axes, a time when the information is received, and the like. The handwritten trajectory data shown in FIG. 4 indicates handwritten trajectory data associated with a point having a latitude value and a longitude value (1275300, 50219100), and the trajectory information management table 55 described later will be described in detail. Will be described in the next section.

  The trajectory information management table 55 as the trajectory information management section records information such as the latitude value and longitude value that are generated as the current position information and stored as the display position information of the trajectory information, and the trajectory information are associated with each other. Database. FIG. 5 is a diagram showing an example of the data structure of the trajectory information management table 55 in FIG. As shown in FIG. 5, the trajectory information management table 55 includes longitude / latitude information, trajectory file ID information, pen ID information, and the like recorded by the data recording unit 52.

  The longitude / latitude information stores a latitude value and a longitude value that are display position information corresponding to the writing trajectory data stored in the trajectory information table 54 shown in FIG. Note that the latitude value and latitude value (12753000, 502191000) of ID = 6 shown in FIG. 5 are converted into integer values by the following calculation formula. Equation 1 is an equation for obtaining an integer value (P) in the case of latitude X hour Y minute Z second, and Equation 2 obtains an integer value (Q) in the case of longitude A hour B minute C second. Is an expression for

[Formula 1]
P = (X × 60 × 60 + Y × 60 + Z) × 1000

[Formula 2]
Q = (A × 60 × 60 + B × 60 + C) × 1000

  These latitude value and longitude value, which are display position information converted into integer values, are values that are converted in association with the coordinate values of the dedicated sheet 15 as appropriate. The details of the conversion method from the coordinate value to the latitude value and longitude value converted to integers are omitted.

  The trajectory file ID information is ID information assigned so that the trajectory information can be collectively identified. For example, the locus file ID associated with the latitude value and the longitude value (127753000, 502191000) shown in FIG. 4 is 1153191018. In this ID, the start time of the writing trajectory data at ID = 1 shown in FIG. 4 is directly assigned as the value of the trajectory file ID. Therefore, the writing trajectory data composed of the trajectory information of ID = 1 to 6 in FIG. 4 can plot the trajectory information by referring to the trajectory file ID = 1153191018. In addition, although the start time of writing locus | trajectory data also becomes locus | trajectory file ID also about other locus | trajectory file ID, as a matter of course, it is good also as end time and the intermediate time.

  The pen ID information is ID information given so that a user who uses the electronic pen 20 can be individually identified. For example, if the pen ID information is set to display the trajectory information of only the pen ID = anr8rkk9, when the user (pen ID = anr8rkk9) uses the car navigation device 40, the pen ID = anr8rkk9. Only the trajectory information (for example, ID = 1, 6 in FIG. 5) can be displayed on the liquid crystal device 42 as trajectory information.

  The scale table 56 is a database having a plurality of electronic maps with different scales. FIG. 6 is a diagram showing an example of the data structure of the scale table 56 in FIG. As shown in FIG. 6, the scale table 56 stores a plurality of map scales printed on the dedicated sheet 15.

  Each scale recorded in the scale table 56 is associated with extraction range size information indicating the size (radius) of the extraction range described later. For example, extraction range size information with a radius of 2 kilometers is associated with a scale of 1 / 100,000. The plurality of extraction range size information is information on a plurality of extraction range sizes according to the scale of the map. Note that the size (radius) of the plurality of extraction ranges in FIG. 3 is a predetermined common size (for example, a radius of 2 centimeters) in the dedicated sheet 15A.

  The coordinate conversion table 57 as a conversion unit is a database for converting the coordinate value as the read data 28 transmitted from the electronic pen 20 into the longitude value and latitude value information (position information) on the map.

  FIG. 7 is a diagram showing an example of the data structure of the coordinate conversion table 57 in FIG. As shown in FIG. 7, the coordinate conversion table 57 has a plurality of coordinate values obtained from the dot pattern 16 printed on the dedicated sheet 15. Further, each coordinate value in the coordinate conversion table 57 is associated with a latitude value and a longitude value at a point in the map that is printed over the dot pattern 16 in which the coordinate value is encoded. For example, the coordinate values (x1, y1) encoded in the dot pattern 16 are associated with latitude values and longitude values at 35 degrees 39 minutes 17 seconds north latitude and 139 degrees 44 minutes 07 seconds east longitude.

  The received data 58 is obtained by recording the read data 28 transmitted from the electronic pen 20 in the memory 48. The received data 58 includes data received from other than the electronic pen 20. For example, data input from the input device 44 is also handled as the received data 58.

  The navigation data 59 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, for example, data for displaying a map on the liquid crystal device 42 as the display unit 40a, and is obtained by converting the map or the like placed on the dedicated sheet 15 into image data. The node data is data of intersections and corner points, and has attribute information such as the names of the points, latitude values, and longitude values. The link data is data associated with a road section connecting the intersections, and includes attribute information such as information on a plurality of nodes to which the intersections are connected and road names. The facility data is data relating to facilities such as a company, a building, and an exhibition hall, and includes, for example, text data indicating the name of each facility and attribute information such as latitude and longitude values.

  Next, the operation of the above-described car navigation system 10 will be described based on an example in which the electronic pen 20 fills in the dedicated sheet 15A with contents to be recorded in the vicinity of the store where the vehicle stopped during driving.

(Track information registration process)
FIG. 8 is a flowchart showing the trajectory information registration process performed by the car navigation device 40 shown in FIG. Here, the trajectory information registration process is a process for determining and registering position information as a reference for appropriately displaying the trajectory information received from the electronic pen 20 on the car navigation device 40.

  The microcomputer 46 serving as the control unit of the car navigation device 40 starts the trajectory information registration process when the power is turned on or the coordinate value association process is set (START). Here, for example, it is assumed that the information to be recorded is written on the dedicated sheet 15 in the vicinity of the cake shop where the driver has stopped, and the written information “Delicious cake shop with two mothers” is entered.

  The car navigation device 40 generates coordinate values from the electronic pen 20 (step S100). For example, as shown in FIG. 4, the trajectory information from ID1 to ID6 is generated from the electronic pen 20. Then, after step S100, the car navigation apparatus 40 generates vehicle current position information using the GPS receiving device 45 (step S101). That is, when the microcomputer 46 receives a plurality of coordinate values as the writing information shown in FIG. 4 from the electronic pen 20, the microcomputer 46 performs a step of generating the current position information of the vehicle at the time of reception. This is realized by processing 50.

  When the current position information of the vehicle in step S101 can be generated, the car navigation device 40 analyzes the coordinate value (step S102). That is, when the current position information of the vehicle can be generated, the microcomputer 46 performs a step of registering it in the locus information table 55 as the locus information using the data analysis unit 51. In step S102, for example, it can be collected as one piece of trajectory information from the entry time included in the coordinate value. In addition, as a method of collecting a plurality of coordinate values as trajectory information, for example, when 5 minutes or more have passed since the last reception record, it may be determined that the memo is a new memo and ID may be assigned as new trajectory information.

  The car navigation apparatus 40 associates the current position information of the vehicle as the display position information of the trajectory data (step S103), and ends the trajectory information registration process (END). In step S103, the microcomputer 46 stores various information such as trajectory information, display position information, and entry time in the trajectory management information table 55 shown in FIG.

(Track information display process)
Next, the trajectory information display process performed after the trajectory information registration process described above is described. Here, the locus information display process is a process for causing the liquid crystal device 42 to display the locus information recorded in the locus information management table 55.

  FIG. 9 is a flowchart showing a trajectory information display process performed by the car navigation device 40 shown in FIG. When the power is turned on or the setting for displaying the registered trajectory information is made, the car navigation device 40 starts the trajectory information display process (START). The car navigation device 40 generates the current position information of the vehicle using the GPS receiving device 45 described above (step S110). In step S110, processing similar to that in step S101 described above is performed.

  The car navigation device 40 determines whether or not the current position information of the vehicle generated in step S110 is included within a predetermined range from the display position associated with the registered trajectory information (step S111). That is, the microcomputer 46 uses the data analysis unit 51 to display the display position information stored in the trajectory information management table 55 within a predetermined range formed with the current position information generated by the position information generation unit 50 as a center point. Is determined.

  In comparing the display position information of the trajectory information management table 55 and the current position information of the vehicle generated by the position information generation unit 50, if the current position of the vehicle enters the “predetermined range” from the display position, the display unit 40a. The process to display on is performed. Here, the “predetermined range” is, for example, position information included in a radius of 50 m from the point recorded in the display position information, and the range is a rectangular area instead of a circle or a circle. Or can be set as appropriate.

  If the current position of the vehicle is not included in the predetermined range from the display position information associated with the registered trajectory information (No in step S111), the car navigation device 40 repeats the determination process in step S111. On the other hand, when the current position of the vehicle is included in the predetermined range from the display position information associated with the registered trajectory information (Yes in step S111), the car navigation device 40 associates with the liquid crystal device 42. The trajectory information being displayed is displayed (step S112), and the trajectory information display process is terminated (END). That is, if the determination result in step S111 is YES, the microcomputer 46 displays the trajectory information on the liquid crystal device 42 and ends the trajectory information display process. If the determination result in step S111 is No, the microcomputer 46 periodically repeats the determination process.

(First screen example of trace information display processing result)
Next, a screen displayed on the liquid crystal device 42 by the locus information display process shown in FIG. 8 will be described with reference to FIG. In the following description, it is assumed that the trajectory information K is stored in advance in the trajectory information management table 55 by the trajectory information registration process shown in FIG. For example, a user visited in the past in “O's house” near “X intersection” shown in FIG. 10A, and registered “X's house” as the trajectory information K at that time. It shall be.

  FIG. 10 is a diagram showing a first screen example displayed on the liquid crystal device 42 by the trajectory information display process in the car navigation device 40 shown in FIG. 1, and (A) shows the trajectory information on the screen of the liquid crystal device 42. FIG. 7B is a diagram conceptually showing a vehicle detection range E when K is displayed, and FIG. 6B is a diagram showing the trajectory information K when the vehicle C enters the vehicle detection range E when displaying K. It is the figure currently displayed on the screen of the device 42 with the electronic map.

  As shown in FIG. 10 (A), the liquid crystal device 42 of the car navigation apparatus 40 displays an image in which the vehicle C is approaching the “X intersection”. The detection range E shown in the image conceptually indicates a predetermined range from the display position where the trajectory information K registered by the trajectory information registration process described above is displayed together with the electronic map. That is, when the vehicle C is within the detection range E, as shown in FIG. 10 (B), “X's house” is an electronic map as the trajectory information K associated in the trajectory management information table 55. Is displayed. Note that the circle on the dotted line represented by the detection range E is not actually drawn on the screen of the liquid crystal device 42.

  In this way, the trajectory information K recorded at a point where the user stopped in the past is stored in the car navigation device 40, and when the display position information falls within a predetermined range again, the trajectory information K is electronically stored. Can be displayed with a typical map. That is, the car navigation system 10 having the car navigation device 40 can display information created by the user on the map.

(Data output processing)
Next, a data output process for outputting information recorded in the trajectory information management table 55 to an external recording medium such as a CD or a USB memory will be described.

  FIG. 11 is a flowchart showing a data output process performed by the car navigation device 40 shown in FIG. The car navigation device 40 starts the data output process when the power is turned on or the data output process is set (START). The car navigation apparatus 40 determines whether or not a recording medium is connected to the output device 43 (step S120).

  When the recording medium is not connected to the output device 43 (No in step S120), the car navigation device 40 repeats the process of step S120. On the other hand, when a recording medium is connected to the output device 43 (Yes in step S120), the car navigation device 40 includes predetermined information (trajectory information and its trajectory information) recorded in the trajectory management information table 55. The associated display information and the like are output to the recording medium, and the data output process is terminated (END).

  Thus, the car navigation device 40 can output the predetermined information recorded in the trajectory management information table 55 as data to an external recording medium. Therefore, the data stored in the car navigation device 40 can be used in other media and devices, and the use of information is expanded.

  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. For example, the following embodiments are possible.

(Example of second display screen of trajectory information display processing result)
A second display screen example different from the display screen example shown in FIG. 10B will be described. FIG. 12 is a diagram showing a second display screen example displayed on the liquid crystal device 42 by the trajectory information display process in the car navigation device 40 shown in FIG.

  In this second display screen example, unlike the trajectory information K shown in the first display screen example, in addition to the trajectory information L, a digital image D is displayed in the pop-up window XX1. Note that the digital image D shown in FIG. 12 is input in advance from the input device 44 of the car navigation apparatus 40 and stored in association with the trajectory information L in the trajectory management information table 55 appropriately.

  Such a car navigation device 40 captures a digital image D photographed by a digital camera (not shown) or the like in addition to the trajectory information L input by the user through the dedicated seat 15 and associates (links) it with the trajectory information L. Therefore, it can display appropriately.

  Note that the method of associating (linking) the trajectory information L and the digital image D is, for example, which one stored in the trajectory management information table 55 when the digital image D is input from the input device 44. A selection window that allows the user to select whether or not to associate (correlate) with the locus information may be displayed, and the locus information L and the digital image D may be appropriately associated and stored according to the input result.

  Further, as another method of storing (linking) the association, the image generation date and time as the attribute information of the digital image D and the generation time of the trajectory information L stored in the trajectory management information table 55 are compared. When the difference between the two is within a predetermined time (for example, when the difference between the generation dates is within one hour), the trajectory management information table is automatically controlled by the microcomputer 46 of the car navigation device 40. It is also possible to associate (link) and store in 55. As the generation time of the trajectory information L, any one of a generation start time, a generation end time, an intermediate value between the start and end, and the like can be adopted. Alternatively, the time when the trajectory file is generated may be used.

  Further, by combining the above two storage methods, the combination of the digital image D and the trajectory information L automatically associated with each other in the trajectory management information table 55 is displayed under the control of the microcomputer 46. A confirmation window for selecting whether or not it is appropriate may be determined by pop-up display on the liquid crystal device 42.

(Other uses of track information and digital images)
Subsequently, another usage method of the trajectory information L and the digital image D appropriately associated by the above-described method will be described.

  FIG. 13 shows an HTML file generated using the trajectory information L and the digital image D output by the output device 43 in the car car navigation apparatus 40 shown in FIG. 1 on the WEB browser 100.

  The user outputs the trajectory information L generated by recording during driving and the captured digital image D from the car car navigation device 40 to a recording medium (not shown). And it can produce | generate as an HTML file using those data after returning home. Therefore, the output information can be used as a material for creating a blog as a travel record, for example.

(Other registration methods of track information)
Subsequently, another registration method of trajectory information will be described. FIG. 14 uses a dedicated seat 15B that is different from the dedicated seat 15 of the car navigation system 10 shown in FIG. 1, and (A) corresponds to an electronic map stored in the car navigation device 40. It is a figure which shows the exclusive sheet | seat 15B with which the map was printed, (B) is a figure which shows the example of a screen on which the locus | trajectory information registered using the exclusive sheet | seat 15B is displayed on the liquid crystal device.

  As shown in FIG. 14A, the dedicated sheet 15B has trajectory information J written with the electronic pen 20, a circle R that surrounds the trajectory information J, and an arrow G that identifies the location that the circle R points to. , Is drawn.

  As shown in FIG. 14A, the circle R records the trajectory information J within the range of the circle R in the trajectory management information table 55 in order to specify the trajectory information J. This is because the microcomputer 46 detects a circle R having a predetermined pattern from the trajectory information recorded in the trajectory information table 54, and the coordinate values (that is, the trajectory) included in the range of coordinate values constituting the circle R. Only information J) is stored in the trajectory information management table 55.

  In addition, as shown in FIG. 14A, instead of associating (linking) the point where the locus information J is registered with the display position information at the time of registration, the medium position information of the point designated by the electronic pen 20 is used. The display position information is generated and associated (linked) with the trajectory information J. This is because the microcomputer 46 detects an arrow G having a predetermined pattern from the trajectory information recorded in the trajectory information table 54 using a pattern detection unit (not shown), and medium position information that matches the arrow G Is converted into a latitude value and a longitude value as display position information on the dedicated sheet 15B, and the latitude value and the longitude value are stored in the trajectory information management table 55. The detection range F of the trajectory information J is determined by detecting the arrow G by the pattern detection unit described above. The display range F is not actually drawn on the map.

  As shown in FIG. 14 (B), the car navigation device 40 uses the locus information registration process and the position information detection process as described above to record the locus information J recorded at the place where the user stopped in the past. Store it so that it can be displayed. Then, the car navigation device 40 can display the trajectory information J together with an electronic map when entering the predetermined range from the registered display position. That is, the car navigation system 10 having the dedicated seat 15B can display information created by the user himself / herself at a desired point on the map.

(Other display timing methods)
In addition, the car navigation device 40 according to the above embodiment displays the trajectory information associated with the display position information when the vehicle enters the predetermined range from the stored display position. Is supposed to be displayed. In addition, for example, when the display position is included in the map displayed on the liquid crystal device 42, the trajectory information may be displayed.

  Further, the car navigation device 40 may determine whether or not to display the trajectory information by referring not only to the current position of the vehicle but also to the time when the vehicle entered the detection range in addition to the current position of the vehicle. Good. For example, when the registration time of the trajectory information is 16:00 and the vehicle enters the detection range of the display position within one hour before and after the registration time, the trajectory information is displayed. By adopting such a display timing method, for example, the trajectory information indicating the cake shop can be displayed only when the vehicle enters the vicinity of the registration point during the snack time zone. Therefore, an appropriate display time zone can be set in accordance with the characteristics of the trajectory information, and unnecessary trajectory information is not displayed. Moreover, even when the registered trajectory information increases, only trajectory information deemed necessary can be appropriately displayed.

  In addition, the program stored in the memory 27 of the electronic pen 20 and the program stored in the memory 48 of the car navigation device 40 according to the above embodiment are stored in the memories 27 and 46 before shipment of these devices. However, it may be stored in the memories 27 and 46 after the shipment of these devices. Some of these programs may be stored after the shipment of these devices. Thus, the programs stored in the memories 27 and 46 after shipment are installed programs stored in a computer-readable recording medium such as a CD-ROM (Compact Disc Read Only Memory) or a semiconductor memory. Alternatively, it may be downloaded from a server device or the like via a transmission medium such as the Internet.

  In addition, the program stored in the memory 48 of the car navigation device 40 according to the above-described embodiment and the various data described above are partly or entirely part of an external storage device such as an HDD outside the microcomputer 46, a car, It may be stored in, for example, a memory card or a CD-ROM that is detachable from the navigation device 40. In particular, when the coordinate conversion table 57 and the scale table 56 have data closely related to the print contents of the dedicated sheets 15A and 15B, the coordinate conversion table 57 and the scale table 56 are stored in a memory card removable from the car navigation device 40, and the dedicated sheets 15A and 15B. It is good to be provided to the user together. As a result, the car navigation device 40 can handle a plurality of dedicated seats 15A, 15B, etc. by replacing and mounting the memory card corresponding to each dedicated seat 15 and the like.

  In addition, all or a part of the functions of the constituent blocks included in the car navigation system 10 according to the above embodiment may be realized by software, or at least a part thereof may be realized by hardware. For example, all or a part of the processing in the control unit 46 may be realized on a computer by one or a plurality of programs, and at least a part thereof may be realized by hardware.

  In addition, a computer program for operating the car navigation device 40 of the car navigation system 10 according to the above embodiment as a whole or a part of the device is a memory card, a CD (compact disc), a DVD (digital versatile disk), an MO. (Magneto-optical) and the like stored in a computer-readable recording medium and distributed, installed in another computer, for example, a mobile phone, an audio device, an electronic watch, etc., and operated as a car navigation device 40, or The steps performed by the car navigation device 40 may be executed. Furthermore, the program may be stored in a disk device or the like included in a server device on the Internet, and may be downloaded to a computer serving as the car navigation device 40 by being superimposed on a carrier wave, for example.

  The present invention can be applied to all navigation systems. That is, it can be applied to navigation systems for automobiles, ships, bicycles, and the like.

FIG. 1 is an overall configuration diagram of a car navigation system according to an embodiment of the present invention. It is explanatory drawing which shows the exclusive sheet | seat in FIG. It is a block diagram which shows the detailed structure of the electronic pen and car navigation apparatus in FIG. It is a figure which shows an example of the data structure of the locus | trajectory information table in FIG. It is a figure which shows an example of the data structure of the locus | trajectory information management table in FIG. It is a figure which shows an example of the data structure of the scale table in FIG. It is a figure which shows an example of the data structure of the coordinate conversion table in FIG. It is a flowchart which shows the locus | trajectory information registration process which the car navigation apparatus shown in FIG. 1 performs. It is a flowchart which shows the locus | trajectory information display process which the car navigation apparatus shown in FIG. 1 performs. FIG. 2A is a diagram showing a first screen example displayed on a liquid crystal device by a trajectory information display process in the car navigation device shown in FIG. 1, and FIG. In the figure, (B) is a diagram in which the trajectory information is displayed together with an electronic map on the screen of the liquid crystal device when the vehicle enters the display range. It is a flowchart which shows the data output process which the car navigation apparatus shown in FIG. 1 performs. It is a figure which shows the 2nd example of a display screen displayed on a liquid crystal device by the locus | trajectory information display process in the car navigation apparatus shown in FIG. The HTML file produced | generated using the locus | trajectory information output by the output device in the car navigation apparatus shown in FIG. 1 and a digital image is displayed on a WEB browser. FIG. 1A shows a dedicated sheet different from the dedicated sheet for the car navigation system shown in FIG. 1, and FIG. 1A shows a dedicated sheet on which a map corresponding to an electronic map stored in the car navigation device is printed. (B) is a figure which shows the example of a screen on which the locus | trajectory information registered using the exclusive sheet | seat is displayed on the liquid crystal device.

Explanation of symbols

10 car navigation system (navigation system), 15, 15A, 15B dedicated sheet (print medium), 17 dot pattern (pattern that can be converted into coordinate values), 29 pattern reading unit, 30 generation unit, 40 car navigation device (navigation device) ), 40a, 42 Liquid crystal device (display unit), 43 Output device (data output unit), 44 Input device (data input unit), 46 Microcomputer (control unit), 50 Location information generation unit, 53 Route search unit, 54 Trajectory information table (trajectory information recording unit / information recording unit), 55 Trajectory information management table (trajectory information management unit / information management unit), 57 Coordinate conversion table (conversion unit)

Claims (16)

A print medium on which a pattern that can be converted into a coordinate value indicating a position written on the print medium is printed;
A pattern reading unit for reading the pattern;
A generating unit that generates the coordinate value from the read pattern;
A display unit that can display an electronic map;
When the coordinate value is transmitted, the coordinate value is stored as trajectory information, current position information is generated, the current position information is associated and stored as display position information of the trajectory information, and the display position A control unit that displays the trajectory information on the display unit based on the information;
A navigation system comprising: The controller is
A trajectory information recording unit that records the transmitted coordinate values as trajectory information;
A position information generator for generating the current position information;
A trajectory information management unit that stores the current position information in association with the display position information of the trajectory information,
The navigation system according to claim 1, wherein the trajectory information is displayed on the display unit based on the display position information. The controller is
The navigation system according to claim 1, wherein when the display position information falls within a display range of the display unit, the trajectory information is displayed on the display unit. The controller is
It has a route search unit that can search for routes,
The navigation system according to claim 1, wherein when the display position information falls within a predetermined range from the route determined by the route search unit, the trajectory information is displayed on the display unit. .   The navigation system according to claim 1, further comprising a data output unit capable of outputting the trajectory information and the display position information to an external recording medium. The controller is
The navigation according to claim 1, wherein when the trajectory information is transmitted, the current position information is generated, and the current position information is stored as display position information for displaying the trajectory information. system.   The navigation system according to claim 1, wherein the control unit detects a predetermined pattern from the trajectory information, and stores only coordinate values included in a range of coordinate values constituting the predetermined pattern. . A map corresponding to an electronic map displayed on the display unit is printed on the print medium,
The controller is
A conversion unit capable of converting coordinate values on the print medium and position information on the map print medium;
A pattern detection unit that detects a predetermined pattern from the trajectory information,
The coordinate value matching the predetermined pattern is converted into medium position information on the map print medium, and the converted medium position information is stored as display position information for displaying the trajectory information. The navigation system according to claim 1. The controller is
It has a data input part that can input external information,
The date and time when the trajectory information is stored is compared with the creation date and time of the external information input by the data input means, and when the difference between both creation dates and times is within a predetermined time, the external information is stored as the trajectory. The navigation system according to claim 1, wherein the navigation system is stored in association with information.   The navigation system according to claim 9, wherein when the control unit displays the trajectory information on the display unit, the control unit also displays the external information on the display unit. A position information generator that can generate current position information;
A display unit that can display an electronic map;
When the trajectory information is transmitted, the trajectory information is stored, the current position information is generated, and the current position information is stored in association with the display position information of the trajectory information. Based on the display position information And a control unit that displays the trajectory information on the display unit. The controller is
The navigation apparatus according to claim 11, wherein when the display position information falls within a predetermined range of an electronic map displayed on the display unit, the trajectory information is displayed on the display unit. The controller is
It has a route search unit that can search for routes,
The navigation device according to claim 11, wherein when the display position information enters the predetermined range from a route determined by the route search unit, the trajectory information is displayed on the display unit.   The control unit generates the current position information when the trajectory information is recorded, and associates and stores the current position information as display position information for displaying the trajectory information. 11. The navigation device according to 11. Generating current location information;
A step of storing the trajectory information when the trajectory information is transmitted;
Storing the current position information in association with the display position information of the trajectory information;
Displaying the trajectory information based on the display position information;
An information display method characterized by comprising:   A program for causing a computer to function as the navigation device according to any one of claims 11 to 14.

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