JP2007278827A - On-vehicle navigation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an on-vehicle navigation device, capable of further reducing the labor of a user required for setting a destination, and performing more detailed route guidance of the vicinity of the destination. <P>SOLUTION: In this on-vehicle navigation device, spot information is read from a card type storage medium storing the spot information, including the location of the destination and information of its periphery, and the destination is set from the spot information; and when the distance between the destination and the present position is below a prescribed value, the destination and information of its periphery read from the card-type storage medium are displayed. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an in-vehicle navigation device.

  As the vehicle travels, the current position is detected by GPS (Global Positioning System), etc., and the current position is displayed on a display device together with a road map, and an appropriate route from the starting point to the destination The vehicle-mounted navigation device that guides the user with a display device or a voice output device contributes to efficient and safe driving for the user.

  Conventionally, if the name of the point to be targeted is unknown, or if the name registered in the in-vehicle navigation device is unknown even though the name of the point to be targeted is known, Searching on the map display screen using a pointer, searching for a unique name from a manual or a paper map, and then inputting the searched name by voice has been necessary, increasing the labor of the user. Therefore, an in-vehicle navigation device has been devised that can significantly reduce the user's burden by automatically setting the destination and route desired by the user according to the user's preference (see Patent Document 1). ).

Japanese Patent No. 3695995

  In the prior art including Patent Document 1, in destination setting, the name, address, or telephone number of the destination is input according to the display screen of the in-vehicle navigation device, and the map database in the device is searched. It is necessary to make a setting, and the setting operation takes time, leading to an increase in operation load other than driving. Also in the configuration of Patent Document 1, it is necessary to input the user's preference, which does not reduce the burden on the user. Furthermore, there remains a problem that a place that is not registered in the map database cannot be set as a destination.

  In addition, when the vehicle reaches the vicinity of the destination, it is determined that the vehicle has reached the vicinity of the destination due to restrictions such as the accuracy of the map, the accuracy of position detection, or the amount of information (memory capacity) of the map database. The route guidance may be terminated as if it is an arrival at the destination, and the destination is near the destination, but the destination route is unknown and it takes time to arrive at the destination. Sometimes.

  Against the background of the above problems, an object of the present invention is to provide an in-vehicle navigation device that can further reduce the user's labor required for destination setting and can provide more detailed route guidance around the destination. It is in.

Means for Solving the Problems and Effects of the Invention

  An in-vehicle navigation device for solving the above-described problems includes a card-type storage medium in which point information including the location of a destination and information around the destination is stored, reading means for reading the point information from the card-type storage medium, Display means for displaying the received spot information, spot selection means for selecting a desired one from the displayed spots, and spot setting means for setting the selected spot as a destination.

  With the above configuration, it is not necessary to perform destination search in the in-vehicle navigation device, and the destination can be set easily and in a short time by causing the in-vehicle navigation device to read the card-type storage medium. Moreover, even when the destination that the user wants to set is not included in the map database or is not added to the map database such as a newly constructed facility, the destination can be set from the card-type storage medium. . In particular, if the map database is composed of a storage medium such as a CD-ROM or DVD, it is necessary to purchase a newest version. It is also possible to reduce expenses by extending it.

  In addition, an in-vehicle navigation device for solving the above problems includes a card type storage medium in which point information including information on the location of the destination and its surroundings is stored, and reading means for reading the point information from the card type storage medium; A position detection means for detecting the current position of the vehicle, a distance determination means for determining whether the distance between the destination and the current position is below a predetermined value, and a card-type storage medium when the distance is below a predetermined value Display means for displaying information about the destination read from the information and the surrounding area.

  Also with the above configuration, it is not necessary to perform a destination search in the in-vehicle navigation device, and the destination can be set easily and in a short time by causing the in-vehicle navigation device to read the card-type storage medium. Moreover, even when the destination that the user wants to set is not included in the map database or is not added to the map database such as a newly constructed facility, the destination can be set from the card-type storage medium. . Furthermore, since the spot information read from the card type storage medium is displayed on the display means, the user can grasp what kind of spot information has been read. Furthermore, when the vehicle approaches the destination and is within the range of the peripheral information contained in the information card, the map, route information, landmark building, etc. in the information card are displayed on the in-vehicle navigation device. It is possible to provide sufficient information to the user until it is displayed on the display means and the user arrives at the destination.

  In addition, an in-vehicle navigation device for solving the above problems includes a card type storage medium in which point information including information on the location of the destination and its surroundings is stored, and reading means for reading the point information from the card type storage medium; Display means for displaying the read spot information; spot selection means for selecting a desired one from the displayed spots; spot setting means for setting the selected spot as a destination; and detecting the current position of the vehicle Position detecting means, and distance determining means for determining whether the distance between the set destination and the current position is below a predetermined value, and when the distance is below the predetermined value, the display means is a card type The destination read from the storage medium and information around the destination are displayed.

  Also with the above configuration, it is not necessary to perform a destination search in the in-vehicle navigation device, and the destination can be set easily and in a short time by causing the in-vehicle navigation device to read the card-type storage medium. Moreover, even when the destination that the user wants to set is not included in the map database or is not added to the map database such as a newly constructed facility, the destination can be set from the card-type storage medium. . Furthermore, since the spot information read from the card type storage medium is displayed on the display means, the user can grasp what kind of spot information has been read. Furthermore, when the vehicle approaches the destination and is within the range of the peripheral information contained in the information card, the map, route information, landmark building, etc. in the information card are displayed on the in-vehicle navigation device. It is possible to provide sufficient information to the user until it is displayed on the display means and the user arrives at the destination.

  The in-vehicle navigation device of the present invention can also be configured to include an authentication unit that authenticates a user who performs reading when reading point information from a card-type storage medium.

  With the above configuration, when the card-type storage medium includes information such as personal information that should be known only to a specific user, the contents of the information can be known even if the card-type storage medium is picked up by a third party. Therefore, the safety of information, that is, the card type storage medium is increased.

  The reading means in the in-vehicle navigation device of the present invention includes a card slot that can hold a plurality of card type storage media, and sequentially or sequentially stores the point information stored in the plurality of card type storage media inserted in the card slot. It can also be configured to read continuously.

  With the above configuration, it is not necessary to replace the card-type storage medium every time the destination is set, and the convenience for the user is improved. In addition, when spot information is read from a plurality of card-type storage media, the read spot information is sequentially displayed on the display means, so that the user can grasp what spot information has been read. The desired point can be set as the destination from the plurality of read point information. Furthermore, a plurality of points can be set as destinations in succession.

  The card-type storage medium in the in-vehicle navigation device of the present invention includes an identification code for identifying the card-type storage medium, and includes storage means for storing the identification code of the card-type storage medium from which the point information is read, The means first reads the identification code, and if the read identification code is stored in the storage means, determines that it has already been read. If the identification code is not stored in the storage means, it is stored in the card-type storage medium. It can also be configured to read the spot information.

  With the above configuration, the same card information is not read many times, and the processing load for reading point information is reduced. It is also possible to leave the card-type storage medium in the reading means (card slot).

  The in-vehicle navigation device of the present invention may include a selection unit that selects a destination for display according to a distance and information on the periphery thereof, and the display unit may be configured to display the selected information. it can.

  Since the contents of the point information of the card-type storage medium such as the map range vary depending on the information creator, the map display may not be switched smoothly under a uniform distance condition. With the above configuration, the map display is switched according to the contents of the point information in the card-type storage medium, so that sufficient route guidance can be performed and the user can reach the destination according to the display.

  Moreover, the selection means in the vehicle-mounted navigation device of the present invention can be configured to select the display scale of the map included in the destination and its surrounding information.

  With the above configuration, for example, if the display scale of the map is increased (in detail) as it approaches the destination, the point information of the card type storage medium can be effectively used to provide more detailed route guidance.

  Further, the card-type storage medium in the in-vehicle navigation device of the present invention is a non-contact reading type recording unit mounted or embedded in a part of the card member, and the reading means is a non-contact reading type recording unit. It can also be configured to read the point information from.

  A card-type storage medium recording unit that includes an IC chip and an antenna, receives power from radio waves transmitted from the card-type storage medium reader, operates to communicate with the reader, and exchanges information A technique for reading the storage contents of a storage medium without contact has been put to practical use, for example, as an RFID (Radio Frequency IDentification) tag. With the above configuration, since the reading mechanism is not complicated, the configuration of the present invention can be realized at low cost.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing the configuration of an in-vehicle navigation device (hereinafter abbreviated as navigation device) 100. The navigation device 100 includes a position detector 1, a map data input device 6, an operation switch group 7, a remote control (hereinafter referred to as remote control) sensor 11, a voice synthesis circuit 24 for performing voice guidance, a speaker 15, a memory 9, and a display. 10, a transceiver 13, a hard disk device (HDD) 21, a LAN (Local Area Network) I / F (interface) 26, a control circuit 8 connected thereto, a remote control terminal 12, and the like.

  The position detector 1 includes a known geomagnetic sensor 2, a gyroscope 3 for detecting the rotational angular velocity of the vehicle 101 (see FIG. 2), a distance sensor 4 for detecting the travel distance of the vehicle 101, and a radio wave from a satellite. A GPS receiver 5 for detecting the position 101 is included. Since these sensors 2, 3, 4, and 5 have errors of different properties, they are configured to be used while being complemented by a plurality of sensors. Depending on the accuracy, some of the above-described sensors may be used, and further, a steering rotation sensor or a wheel sensor of each rolling wheel, such as a vehicle speed sensor 23, may be used. The position detector 1 corresponds to the position detection means of the present invention.

  As the operation switch group 7, for example, a touch panel 22 integrated with the display device 10 or a mechanical switch is used. The touch panel 22 is pressed when an electric circuit is wired on the screen of the display 10 in the X-axis direction and the Y-axis direction through a gap called a spacer on a glass substrate and a transparent film, and the user touches the film. Since the voltage value changes due to short-circuiting of a part of the wiring, a so-called resistance film method for detecting this as a two-dimensional coordinate value (X, Y) is widely used. In addition, a known so-called capacitance method may be used. In addition to the mechanical switch, a pointing device such as a mouse or a cursor may be used. Moreover, you may arrange | position the mechanical switch of the operation switch group 7 in the escutcheon which covers the indicator 10 and its periphery and becomes a design frame.

  It is also possible to input various instructions using the microphone 31 and the voice recognition unit 30. In this method, a voice signal input from the microphone 31 is processed by a voice recognition technique such as a well-known hidden Markov model in the voice recognition unit 30, and converted into an operation command corresponding to the result. Various instructions can be input by the operation switch group 7, the remote control terminal 12, the touch panel 22, and the microphone 31 corresponding to the point selection unit and the point setting unit of the present invention.

  The transmitter / receiver 13 is connected to a road traffic from a VICS (Vehicle Information and Communication System) center 14 by an optical beacon or a radio beacon output from a transmitter (not shown) provided along the road, for example. It is a device for receiving information or receiving FM multiplex broadcasting. Moreover, it is good also as a structure which can be connected to external networks, such as the internet, using the transmitter / receiver 13. FIG.

  In addition, by communicating with the ETC on-vehicle device 16, it is possible to capture the fee information received by the ETC on-vehicle device 16 from the roadside device (not shown) into the navigation device 100. Further, the ETC vehicle-mounted device 16 may be connected to an external network and communicate with the VICS center 14 or the like.

  The control circuit 8 is configured as a normal computer, and includes a well-known CPU 81, ROM 82, RAM 83, I / O 84 as an input / output circuit, A / D conversion unit 86, drawing unit 87, and a bus line 85 for connecting these configurations. Is provided. The CPU 81 controls the navigation program 21p and data stored in the HDD 21. The CPU 81 controls the reading / writing of data to / from the HDD 21. In addition, a program for performing a minimum necessary operation as the navigation device 100 may be stored in the ROM 82 in a case where the data read / write control from the CPU 81 to the HDD 21 becomes impossible. The control circuit 8 corresponds to the distance determination means, selection means, and authentication means of the present invention.

  The A / D conversion unit 86 includes a well-known A / D (analog / digital) conversion circuit, and converts analog data input from the position detector 1 or the like to the control circuit 8 into digital data that can be calculated by the CPU 81, for example. It is.

  The drawing unit 87 generates display screen data to be displayed on the display unit 10 from map data 21m (described later) stored in the HDD 21 or the like, display data, and display color data.

  In addition to the navigation program 21p, the HDD 21 stores so-called map matching data for improving the accuracy of position detection, and map data 21m, which is a map database including road data representing road connections. The map data 21m stores predetermined map image information for display and road network information including link information and node information. The link information is predetermined section information constituting each road, and includes position coordinates, distance, required time, road width, number of lanes, speed limit, and the like. The node information is information that defines an intersection (branch road) and the like, and includes position coordinates, the number of right / left turn lanes, a connection destination road link, and the like. In addition, data indicating whether or not traffic is possible is set in the inter-link connection information.

  In addition, in the HDD 21, auxiliary information for route guidance, entertainment information, and other data can be written independently by the user and stored as user data 21u. Data and various information necessary for the operation of the navigation device 100 are also stored as the database 21d.

  The navigation program 21p, map data 21m, user data 21u, and database 21d can be added and updated from the storage medium 20 via the map data input device 6. The storage medium 20 is generally a CD-ROM or DVD based on the amount of data, but may be another medium such as a memory card. Moreover, you may use the structure which downloads data via an external network. The database 21d corresponds to the storage means of the present invention.

  The memory 9 is composed of a rewritable device such as an EEPROM (Electrically Erasable & Programmable Read Only Memory) or a flash memory, and stores information and data necessary for the operation of the navigation apparatus 100. Has been. The memory 9 holds the stored contents even when the navigation device 100 is turned off. Further, instead of the memory 9, information and data necessary for the operation of the navigation device 100 may be stored in the HDD 21. Further, information and data necessary for the operation of the navigation device 100 may be stored separately in the memory 9 and the HDD 21.

  The display 10 is composed of a known color liquid crystal display, and includes a dot matrix LCD (Liquid Crystal Display) and a driver circuit (not shown) for performing LCD display control. The driver circuit uses, for example, an active matrix driving method in which a transistor is attached to each pixel so that the target pixel can be reliably turned on and off, and is based on a display command and display screen data sent from the control circuit 8. To display. Further, an organic EL (ElectroLuminescence) display or a plasma display may be used as the display 10. The display device 10 corresponds to the display means of the present invention.

  The speaker 15 is connected to a well-known voice synthesis circuit 24, and the digital voice data stored in the memory 9 or the HDD 21 in accordance with a command from the navigation program 21p is converted into analog voice by the voice synthesis circuit 24 and sent out. Note that speech synthesis methods include a recording / editing method in which speech waveforms are stored as they are or after being encoded and connected as necessary, and a text synthesis method in which corresponding speech is synthesized from character input information.

  The vehicle speed sensor 23 includes a rotation detection unit such as a known rotary encoder. For example, the vehicle speed sensor 23 is installed in the vicinity of the wheel mounting unit to detect the rotation of the wheel and send it to the control circuit 8 as a pulse signal. In the control circuit 8, the number of rotations of the wheel is converted into the speed of the vehicle 101 to calculate an expected arrival time from the current position of the vehicle 101 to a predetermined place, or an average vehicle speed for each travel section of the vehicle 101. Do

  The LAN I / F 26 is an interface circuit for exchanging data with other in-vehicle devices and sensors via the in-vehicle LAN 27. Further, data may be taken from the vehicle speed sensor 23 or connected to the ETC on-vehicle device 16 via the LAN I / F 26.

  With this configuration, when the navigation program 21p is activated by the CPU 81 of the control circuit 8, the navigation device 100 allows the user to operate the operation switch group 7, the touch panel 22, the remote control terminal 12, or the voice from the microphone 31. When the route guidance process for displaying the destination route on the display 10 is selected from the menu (see FIG. 9) displayed on the display 10 by the input, the following process is performed.

  That is, when the user selects a point from a given point or facility search or address search on the map, a registered point set by the user, etc., and sets it as a destination, the current position of the vehicle 101 is obtained by the position detector 1, A process for obtaining an optimum guide route from the current position to the destination is performed. Then, the guidance route is displayed on the road map on the display 10 so as to guide the user to the appropriate route. As a method for automatically setting an optimum guide route, a method such as the Dijkstra method is known. In addition, at least one of the display 10 and the speaker 15 performs notification of a message according to an operation guidance or an operation state.

  As shown in FIG. 2, the display device 10 is installed, for example, at the upper part of the center panel of the vehicle 101, and a card reader 50 is installed on the right side of the display device 10. The installation place of the card reader 50 may be a place away from the display device 10 such as position 32, for example.

  FIG. 3A shows the configuration of the card reader 50. The card reader 50 has an opening 52 outside the apparatus housing having the reading unit 51 inside, and includes a support part 53 that supports the front end of the information card 55 and a support part 54 that supports both side ends. A slot 56 is configured. Then, the information card 55 is inserted from the opening 52, and the card information (point information or the like) of the information card 55 is read by the reading unit 51 while the information card 55 is supported by the support portions 53 and 54. A plurality of information cards 55 can be placed in the card slot 56. The card reader 50 corresponds to the reading unit of the present invention.

  FIG. 3B shows a cross-sectional view of the card slot 56 viewed from the opening 52 side. As shown in FIG. 3B, a groove portion 58 may be provided in the support portion 54 in order to support the information card 55. In this configuration, a plurality of information cards 55 can be inserted / read, but only one information card 55 may be inserted and read.

  The information card 55 is a well-known non-contact type IC card. As shown in FIG. 3C, a recording medium 57 including a storage medium using a non-contact IC chip and an antenna is mounted or embedded in the information card 55. . As this information card 55, a credit card type resin card in which the recording unit 57 is laminated with resin can be exemplified, but other than this, for example, a part of the paper surface of a postcard, a business card, or a magazine is used as the information card 55. Also good. In this case, a recording unit 57 such as an RFID chip is attached or embedded in a postcard, a business card, a part of a magazine, or the like.

  Details of the exchange of information between the recording unit 57 of the information card 55 and the reading unit 51 will be described with reference to FIG. 3D. The circuit configuration of the recording unit 57 conceptually includes an IC chip 57a and an antenna 57b as main components, and the chip 57a includes a reception circuit 57c, a power generation circuit 57d, a transmission circuit 57e, and a memory 57f. Are electrically connected. The memory 57f is composed of, for example, a ROM (may be a rewritable flash memory), in which specific identification data (card ID) and point information are written and stored, and this card ID is stored in each information card 55. On the other hand, the card IDs are different from each other, and the card ID is automatically recognized by a wireless reading unit 51 described later, so that each information card 55 can be identified.

  Specifically, according to the data carrier method, when an electromagnetic wave having a specific frequency is transmitted from the transmission / reception unit 51a of the reading unit 51 toward the recording unit 57 embedded in the information card 55, the chip is transmitted via the antenna 57b. The electromagnetic wave is received by 57a (reception circuit 57c), the power generation circuit 57d is activated based on the induced electromotive force by the electromagnetic wave, and predetermined power generation is performed, and the reception circuit 57c and the transmission circuit 57e are operated using this as a power source. Based on the instruction from the navigation device 100 received by the transmission / reception unit 51a, the transmission circuit 57e reads out the card ID or point information unique to the chip 57a (information card 55) stored in the memory 57f, and uses this as the antenna 57b. Output (transmit) to the reading unit 51 side. The reading unit 51 receives the card ID or point information by the radio wave and recognizes it by the reading processing unit 51b. The recognized card ID data or point information is sent to the navigation device 100. The reading processing unit 51b may be included in the navigation device 100.

  Further, as shown in FIG. 3E, the recording unit 57 includes a card ID which is an identification code of the present invention, a password for user authentication (pass_A), a point name, point coordinates, a range of point information (information range), Point information including map data (map_A) and route guidance information (info_A) in the range is stored. The map data includes data such as buildings that are landmarks around the point. The information card 55 corresponds to the card type storage medium of the present invention.

  As the information card 55, a mechanical reading IC card or magnetic card may be used. An optically read two-dimensional bar code may be used. In this case, the reading unit 51 has a configuration corresponding to these information cards 55.

  Card information (point information) reading and destination setting processing will be described with reference to the flowchart of FIG. 4 and FIGS. This process is included in the navigation program 21p and is repeatedly executed together with other processes of the navigation program 21p. First, it is checked whether or not the card scanning time is generated according to a predetermined cycle or condition. If it is the card scanning time (S1: Yes), a command is sent from the control circuit 8 to the card reader 50, and the reading unit 51 A radio wave is emitted to check whether the information card 55 is in the card slot 56.

  For example, when there is no response from the information card 55 within a predetermined time such as 5 seconds, that is, when the information card 55 is not in the card slot 56 (S2: No), the normal processing of the navigation device 100 is performed. Transition (S15). On the other hand, when there is a response from the information card 55 within a predetermined time (S2: Yes), the card IDs of all the information cards 55 are sequentially read (S3). Then, with reference to a spot information storage area 21d1 (see FIG. 1) where an area is secured in the database 21d of the HDD 21, it is checked whether or not spot information corresponding to the read card ID is stored.

  FIG. 5 shows an example of the stored contents of the point information storage area 21d1. As the stored content, the content stored in the information card 55 of FIG. Moreover, it is comprised so that the point information of the some information card 55 can be memorize | stored. Further, the date and time when the point information is stored and the number of times the point information is set as the destination may be stored together. The password does not have to be stored.

  Returning to FIG. 4, when the point information corresponding to the read card ID is already stored in the point information storage area 21d1 (S4: Yes), step S9 for checking whether there is another information card 55 (described later). ) On the other hand, when the spot information corresponding to the read card ID is not stored in the spot information storage area 21d1 (S4: No), it is checked whether the spot information includes a password.

  When the password is not included (S5: No), the spot information stored in the information card 55 is read and stored in the free area of the spot information storage area 21d1 (S8). If there is no free space, the free space may be generated by deleting the spot information in order of the date and time when the spot information was stored. Moreover, you may delete point information in the order with few frequency | counts set as the destination. An example of the display screen on the display 10 when reading the point information at this time is shown in FIG.

  On the other hand, if a password is included (S5: Yes), a screen prompting the user to input a password is displayed on the display device 10 as shown in FIG. 7, and the password is input (S6). If the input password is correct (S7: Yes), the screen of FIG. 6 is displayed, and the spot information is read and stored in the free area of the spot information storage area 21d1 (S8). If the entered password is not correct (S7: No), the screen shown in FIG. 7 may be displayed continuously until the correct password is entered, or may be in a predetermined number of times such as 3 times. When the password is input, the process may proceed to step S9 (described later) for checking whether there is another information card 55.

  The password is sent to the user separately from the information card 55. For example, when the information card 55 is sent in a sealed letter, it is enclosed in the information card 55. If the information card 55 is attached to a postcard, magazine, or the like, the password is entered by accessing the information producer's home page whose URL is written on the information card 55 and entering the information card 55 number. You may make it acquire.

  The processes from steps S4 to S8 are performed for all information cards 55 corresponding to the read card ID. When implemented for all the information cards 55 (S9: Yes), as shown in FIG. 8, at least a part of the read point information such as the point name is displayed as a list on the screen of the display 10 (S10). ). And it waits for a user to set a destination (S11, S12: No).

  In FIG. 8, when the user presses, for example, “city hall” and “setting” in this order and selects a destination from the display screen (S12: Yes), the city hall is set as the destination (S14). Then, a guide route from the current position of the vehicle 101 detected by the position detector 1 to the destination is searched using the map data 21m, and the screen of the display 10 displays a map of the current position of the vehicle 101 and its surroundings. And the route guidance is performed in the processing of the normal navigation device 100 (S15).

  For example, when the user does not set the destination from the list display within a predetermined time such as one minute (S13: Yes), the screen display on the display device 10 is returned to the state before the card scan, and the navigation is performed. The process proceeds to a normal process of the apparatus 100 (S15).

  In addition, a “point information search” button for searching for a destination from the point information read above is provided in the destination search menu displayed on the display 10 as shown in FIG. When the button is pressed, the spot information stored in the spot information storage area 21d1 of the database 21d may be read out and displayed as shown in FIG. 8, and the destination may be set from the display screen. This method can also reduce the time required for destination setting.

  Further, when only one piece of point information is stored in the information card 55 in a configuration in which only one information card 55 is read, one piece of point information read from the information card 55 can be read without direct user operation. The destination may be automatically set and the destination setting process may be automatically ended. In the flowchart of FIG. 4, when the point information is read in step S8, steps S9 to S12 are skipped and the process proceeds to step S14, and the point included in the point information is set as the destination.

  The route guidance process for the destination set in the card information reading and destination setting process described above will be described with reference to the flowchart of FIG. This process is included in the navigation program 21p and is repeatedly executed together with other processes of the navigation program 21p. First, the current position of the vehicle 101 is acquired by the position detector 1 (S31). Next, with reference to the spot information corresponding to the set destination stored in the spot information storage area 21d1 of the database 21d, it is checked whether the current position of the vehicle 101 is within the information range.

  When the current position of the vehicle 101 is within the information range (S32: Yes), the map data 21m is used to measure the distance between the current position of the vehicle 101 and the destination, and the map to be displayed according to the distance. Is selected and information around the destination is selected (S33).

  Then, the map is displayed on the display 10 at the scale selected above (S34). For example, when the destination is a city hall, the contents of the map data map_C are displayed at the selected scale. FIG. 11 shows an example of the relationship between the distance between the current position of the vehicle 101 and the destination included in the map data (such as map_C) and the scale of the map displayed at that distance. If the distance between the current position of the vehicle 101 and the destination is small, the scale of the map to be displayed is enlarged and information around the destination is displayed in detail.

  Returning to FIG. 10, information around the destination is displayed on the map displayed above (S35). For example, when the destination is a city hall, landmark (mark) information included in the map data map_C is displayed. FIG. 12 shows an example of the relationship between the landmarks included in the map data (map_C, etc.) and the scale on which the landmarks are displayed. For example, the fire department displays the map scale from 1/5000, and always displays it at a scale larger than this. The larger the landmark size, the higher the name recognition or importance, the smaller the scale is displayed.

  Next, route guidance information is displayed on the display screen (S36). For example, when the destination is a city hall, the contents included in the route guidance information info_C are displayed (described later with reference to FIG. 14).

  And when it arrives at the destination (S37: Yes), it transfers to the normal process of the navigation apparatus 100 (S38).

  FIGS. 13 and 14 show screen display examples of the display 10 in the route guidance process. FIG. 13 shows a screen display example when the current position of the vehicle 101 indicated by P is not within the range of the point information of the destination (city hall), and corresponds to S32: No in FIG. In this case, a map around the destination included in the map data 21m is displayed. Depending on the contents of the map data 21m, the guide route Q may not be displayed up to the destination (city hall).

  FIG. 14 shows a screen display example when the current position P of the vehicle 101 is within the point information range of the destination (city hall). As the map approaches the destination (city hall), the scale of the displayed map increases, and the content of the map data map_C is displayed instead of the map data 21m. In addition, landmarks such as “Citizen Hall”, “Market”, “Museum” are also displayed. Further, the contents of the route guidance information info_C are read, and the guidance route Q to the destination (city hall) is also displayed.

  Alternatively, only the destination setting may be performed using the point information of the information card 55, and the route guidance around the destination may be performed using the map data 21m of the normal navigation device 100.

  Further, the destination setting may be performed using the function of the normal navigation device 100, and the route guidance may be performed using the point information of the information card 55 when reaching the vicinity of the destination.

  Although the embodiments of the present invention have been described above, these are merely examples, and the present invention is not limited to these embodiments, and the knowledge of those skilled in the art can be used without departing from the spirit of the claims. Various modifications based on this are possible.

The block diagram which shows the structure of a vehicle-mounted navigation apparatus. The figure which shows the example of arrangement | positioning of a display, a card reader, etc. The figure which shows the structural example of a card reader. The figure which shows another example of a structure of a card slot. The figure which shows the structural example of an information card. The figure which shows the structural example of information reading. The figure which shows the example of a memory | storage of point information. The flowchart explaining card information reading and a destination setting process. The figure which shows the example of the memory content of a point information storage area. The figure which shows the example of a screen display at the time of point information reading. The figure which shows the example of a screen display at the time of a password input request. The figure which shows the example of a screen display at the time of completion | finish of point information reading. The figure which shows the example of a screen display at the time of the destination search. The flowchart explaining route guidance processing. The figure which shows an example of the relationship between the distance to a destination, and map display scale. The figure which shows an example of the reduced scale on which a landmark is displayed. The figure which shows the example of a screen display at the time of normal route guidance. The figure which shows the example of a screen display at the time of the route guidance using point information.

Explanation of symbols

1 Position detector (position detection means)
7 Operation switch group (point selection means, point setting means)
8 Control circuit (distance judgment means, selection means, authentication means)
10 Display (display means)
12 Remote control terminals (point selection means, point setting means)
21 Hard disk drive (HDD)
21d database (storage means)
21m Map data 22 Touch panel (point selection means, point setting means)
31 Microphone (point selection means, point setting means)
50 Card reader (reading means)
55 Information card (card-type storage medium)
56 card slot 57 recording unit 100 vehicle-mounted navigation device

Claims (9)

A card-type storage medium in which point information including the location of the destination and the surrounding information is stored;
Reading means for reading the point information from the card-type storage medium;
Display means for displaying the read point information;
Point selecting means for selecting a desired one from the displayed points;
Point setting means for setting the selected point as a destination;
A vehicle-mounted navigation device comprising: A card-type storage medium in which point information including the location of the destination and the surrounding information is stored;
Reading means for reading the point information from the card-type storage medium;
Position detecting means for detecting the current position of the vehicle;
Distance determining means for determining whether a distance between the destination and the current position is less than a predetermined value;
When the distance is less than a predetermined value, the display means displays information about a destination read from the card type storage medium and its surroundings. A card-type storage medium in which point information including the location of the destination and the surrounding information is stored;
Reading means for reading the point information from the card-type storage medium;
Display means for displaying the read point information;
Point selecting means for selecting a desired one from the displayed points;
Point setting means for setting the selected point as a destination;
Position detecting means for detecting the current position of the vehicle;
Distance determining means for determining whether a distance between the set destination and the current position is less than a predetermined value;
Display means for displaying information about the destination read from the card-type storage medium and its surroundings when the distance is less than a predetermined value;
A vehicle-mounted navigation device comprising:   The in-vehicle navigation device according to any one of claims 1 to 3, further comprising an authentication unit configured to authenticate a user who performs reading when the point information is read from the card type storage medium.   2. The reading means includes a card slot capable of holding a plurality of card-type storage media, and sequentially or continuously reads point information stored in the plurality of card-type storage media inserted into the card slot. 5. The vehicle-mounted navigation device according to any one of items 1 to 4. The card type storage medium includes an identification code for identifying the card type storage medium,
Storage means for storing the identification code of the card-type storage medium that has read the point information;
The reading means first reads the identification code, and if the read identification code is stored in the storage means, determines that it has already been read, and if the identification code is not stored in the storage means, the card The vehicle-mounted navigation device according to any one of claims 1 to 5, wherein the spot information stored in the type storage medium is read. Comprising a selection means for selecting a destination for display according to the distance and information on the periphery thereof;
The in-vehicle navigation device according to any one of claims 2 to 6, wherein the display means displays the selected information.   The in-vehicle navigation device according to claim 7, wherein the selection unit selects a display scale of a map included in the information about the destination and the surrounding area. The card-type storage medium is a non-contact reading type recording unit mounted or embedded in a part of a card member, and the reading unit reads the point information from the non-contact reading type recording unit in a non-contact manner. The vehicle-mounted navigation device according to any one of 1 to 8.

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