JP2009109400A - Navigation system, navigation method, navigation program, and record medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To perform a guide suitable for a pedestrian by executing navigation processing using map data for a mobile and map data for the pedestrian. <P>SOLUTION: A navigation system 100 has a connection detection section 101, a stop detection section 102, a transfer section 103, a second storage section 104, and a processing section 105. The connection detection section 101 detects whether it connects with a mobile instrument. The transfer section 103, when stop of the mobile is detected by the stop detection section 102, transfers the map data for a pedestrian around the current position, out of the map data for the pedestrian stored in a first storage section 111, to the second storage section 104. The processing section 105 executes navigation processing for the mobile using the map data for the mobile stored in the first storage section 111 when the connection to the mobile instrument is detected, or executes navigation processing for the pedestrian using the map data for the pedestrian stored in the second storage section 104 when the connection to the mobile instrument is not detected. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a navigation device, a navigation method, a navigation program, and a recording medium.

  Conventionally, a navigation device is mounted on a moving body such as a vehicle. Such navigation devices are not limited to being installed in the vehicle, but can be removed from the vehicle, and can be carried after the user gets off the vehicle, and can also provide guidance when walking. Are known.

  For example, in order to facilitate carrying during walking, a technique has been proposed in which a navigation device is separable from an operating device and a main device, and only the operating device can be carried during walking. (For example, see Patent Document 1 below.)

JP 2002-148052 A

  However, the technology described in Patent Document 1 described above cannot provide guidance suitable for pedestrians because guidance similar to guidance when mounted on a vehicle is performed even when guidance is provided during walking. The problem is given as an example.

  In order to solve the above-mentioned problems and achieve the object, a navigation device according to the invention of claim 1 is used for map data (hereinafter referred to as “map data for mobile objects”) and pedestrians used for navigation processing for mobile objects. Navigation that includes first storage means for storing map data (hereinafter referred to as “pedestrian map data”) used in the navigation processing of the mobile device connected to the mobile device mounted on the mobile body A first storage unit, a connection detection unit that detects whether or not the mobile device is connected, and a connection between the mobile device and the first device; Processing means for executing navigation processing for a mobile object using the map data for mobile object stored in the storage means, and a stop for detecting whether or not the mobile object has stopped. And detecting the pedestrian map data around the current position of the mobile body among the pedestrian map data stored in the first storage means when the stop of the mobile body is detected. Transfer means for transferring to a second storage means, and the processing means is for pedestrians stored in the second storage means when connection with the mobile device is not detected. The navigation processing for pedestrians is performed using map data.

  Further, the navigation device according to the invention of claim 2 is equipped with a first storage means for storing map data (hereinafter referred to as “map data for mobile body”) used for navigation processing for the mobile body, and is mounted on the mobile body. A navigation device that performs navigation processing by connecting to a mobile device that is connected, the second storage means, a connection detection means that detects whether or not the mobile device is connected, and the mobile body Processing means for executing navigation processing for a mobile object using the map data for mobile object stored in the first storage means, and the mobile object is stopped when connection with a device is detected A stop detection means for detecting whether or not the mobile object has been stopped, and when the stop of the mobile object is detected, the map data for the mobile object stored in the first storage means is used. Generation means for generating map data (hereinafter referred to as “pedestrian map data”) used for navigation processing for pedestrians around the location, and transfer for transferring the pedestrian map data to the second storage means And when the connection to the mobile device is not detected, the processing means uses the pedestrian map data stored in the second storage means for pedestrian use. A navigation process is executed.

  Further, the navigation device according to the invention of claim 3 is equipped with a first storage means for storing map data (hereinafter referred to as “moving body map data”) used for navigation processing for the moving body, and is mounted on the moving body. A navigation device that performs navigation processing by connecting to a mobile device that is connected, the second storage means, a connection detection means that detects whether or not the mobile device is connected, and the mobile body Processing means for executing navigation processing for a mobile object using the map data for mobile object stored in the first storage means, and the mobile object is stopped when connection with a device is detected Stop detection means for detecting whether or not the mobile object has been detected and map data (hereinafter referred to as map data) used for navigation processing for pedestrians around the current position of the mobile object when the stop of the mobile object is detected. , "Acquiring map data for pedestrians") from an external server and storing it in the second storage means, and the processing means is not detected to be connected to the mobile device In this case, the pedestrian navigation process is executed using the pedestrian map data stored in the second storage means.

  In addition, the navigation method according to the invention of claim 7 includes map data (hereinafter referred to as “moving body map data”) for use in navigation processing for a moving body and map data (hereinafter referred to as “hereinafter referred to as“ map data for moving body ”). A navigation method of a navigation device comprising a first storage means for storing pedestrian map data) and connected to a mobile device mounted on the mobile body to execute navigation processing, wherein the mobile body A connection detection step for detecting whether or not a device is connected, and when the connection with the mobile device is detected, the mobile map data stored in the first storage means is used. A processing step for executing navigation processing for the mobile body, a stop detection step for detecting whether or not the mobile body has stopped, and a stop of the mobile body are detected. A transfer step of transferring, to the second storage means, pedestrian map data around the current position of the mobile body among the pedestrian map data stored in the first storage means. And when the connection to the mobile device is not detected, the processing step includes a pedestrian navigation process using the pedestrian map data stored in the second storage means. It is characterized by performing.

  Further, the navigation method according to the invention of claim 8 is equipped with a first storage means for storing map data (hereinafter referred to as “map data for mobile body”) used for navigation processing for the mobile body, and is mounted on the mobile body. A navigation method of a navigation device for executing navigation processing by connecting to a mobile device that is connected, a connection detection step for detecting whether or not the mobile device is connected, and connection to the mobile device When the mobile object is detected, a processing step for executing navigation processing for the mobile object using the map data for mobile object stored in the first storage means, and whether or not the mobile object has stopped And when the stop of the moving object is detected, the moving object is detected using the moving object map data stored in the first storage means. A generation step for generating map data (hereinafter referred to as “pedestrian map data”) used for navigation processing for pedestrians around the current position, and transfer for transferring the pedestrian map data to the second storage means And when the connection with the mobile device is not detected, the processing step is for pedestrians using the pedestrian map data stored in the second storage means. A navigation process is executed.

  The navigation method according to the invention of claim 9 is equipped with a first storage means for storing map data (hereinafter referred to as “map data for mobile object”) used for navigation processing for the mobile object, and is mounted on the mobile object. A navigation method of a navigation device for executing navigation processing by connecting to a mobile device that is connected, a connection detection step for detecting whether or not the mobile device is connected, and connection to the mobile device When the mobile object is detected, a processing step for executing navigation processing for the mobile object using the map data for mobile object stored in the first storage means, and whether or not the mobile object has stopped Map data used for navigation processing for pedestrians around the current position of the mobile object when a stop of the mobile object is detected, And acquiring the pedestrian map data from an external server and storing it in the second storage means, wherein the processing step detects a connection with the mobile device. If not, the pedestrian navigation process is executed using the pedestrian map data stored in the second storage means.

  A navigation program according to a tenth aspect of the invention causes a computer to execute the navigation method according to any one of the seventh to ninth aspects.

  A recording medium according to an eleventh aspect of the invention is characterized in that the navigation program according to the tenth aspect is recorded on a computer so as to be readable.

  Exemplary embodiments of a navigation device, a navigation method, a navigation program, and a recording medium according to the present invention are explained in detail below with reference to the accompanying drawings.

(Embodiment 1)
(Functional configuration of navigation device)
A functional configuration of the navigation device 100 according to the embodiment of the present invention will be described. FIG. 1 is a block diagram showing an example of a functional configuration of the navigation device 100 according to the present embodiment.

  In FIG. 1, the navigation device 100 is configured to be connectable to a mobile device 110. The mobile device 110 is fixed to the mobile body and includes a first storage unit 111. The first storage unit 111 includes map data used for navigation processing for moving bodies (hereinafter referred to as “moving body map data”) and map data used for navigation processing for pedestrians (hereinafter referred to as “pedestrian map data”). "). Specifically, a large capacity HDD (Hard Disk Drive) is used for the first storage unit 111.

  Specifically, the moving body map data is wide-area map data, and includes information on roads and facilities that are effective in guiding the moving body. The map data for pedestrians is map data that is larger (detailed) than the map data for mobile objects, and includes information such as sidewalks, pedestrian crossings, pedestrian bridges, and underground sidewalks that are useful information when walking. Yes. The pedestrian map data may be a two-dimensional image or a three-dimensional image.

  The navigation device 100 includes a connection detection unit 101, a stop detection unit 102, a transfer unit 103, a second storage unit 104, a processing unit 105, a guide unit 106, and a notification control unit 107. ing. The connection detection unit 101 detects whether or not the mobile device 110 is connected. The connection detection unit 101 only needs to be able to detect the connection with the mobile device 110, and may use a sensing device or a connection signal such as a connector.

  The stop detection unit 102 detects whether the moving body has stopped. Specifically, the stop detection unit 102 detects that the speed of the moving body is 0 km / h, detects that the parking brake is applied, and detects that the gear position is in the parking gear. Detecting the stop of a moving object when That is, the stop detection unit 102 detects the stop of the moving body based on the speed, the presence / absence of the parking brake, the gear position, and the like.

  The transfer unit 103, when the stop of the moving body is detected by the stop detecting unit 102, the pedestrian map around the current position of the moving body in the pedestrian map data stored in the first storage unit 111. Data is transferred to the second storage unit 104. The second storage unit 104 is preferably small and lightweight, and for example, a recording medium such as an optical disk such as a CD or a DVD, a flash memory such as a memory card or a USB memory is used.

  When the connection to the mobile device 110 is detected, the processing unit 105 executes navigation processing for the mobile object using the mobile object map data stored in the first storage unit 111. In addition, when connection with the mobile device 110 is not detected, the processing unit 105 executes pedestrian navigation processing using the pedestrian map data stored in the second storage unit 104. To do.

  The guide unit 106 is executed by the processing unit 105 and guides the generated guidance content. Specifically, the guide unit 106 performs either one of guidance using the moving body map data or guidance using the pedestrian map data. The guidance by the guidance unit 106 may be voice guidance, guidance by display, or guidance using both.

  In the present embodiment, it is desirable that the pedestrian map data stored in the second storage unit 104 is map data within a predetermined range around the current position. Specifically, the predetermined range is a range where walking is possible, and a radius of about 1 to 2 km. This configuration makes it possible to reduce the capacity of data stored in the second storage unit 104.

  In the present embodiment, mobile device 110 includes a power supply unit (not shown). The power supply unit supplies power to the navigation device 100. When the navigation apparatus 100 is connected to the mobile device 110, the navigation apparatus 100 operates with the power supplied from the power supply unit.

  In addition, the navigation device 100 includes a power storage unit (not shown). The power storage unit stores power from the power supply unit when connection with the mobile device 110 is detected. When the navigation device 100 is detached from the mobile device 110, the navigation device 100 is operated by the power source of the power storage unit.

  Moreover, in this Embodiment, the notification control part 107 of the navigation apparatus 100 is an arbitrary component. The notification control unit 107 notifies the prevention of removal from the mobile device 110 when the transfer unit 103 transfers the pedestrian map data to the second storage unit 104. Specifically, for example, a display indicating that the removal is prohibited is performed from a display unit included in the guide unit 106. Moreover, you may provide the lock part which locks the connection of the navigation apparatus 100 and the mobile device 110 during the transfer of such data.

(Navigation procedure of navigation device)
Next, a navigation processing procedure of the navigation device 100 will be described with reference to FIG. FIG. 2 is a flowchart showing an example of the navigation processing procedure of the navigation device 100 according to the present embodiment.

  In the flowchart of FIG. 2, the navigation device 100 is connected to the mobile device 110 and performs navigation processing using the mobile map data (step S <b> 201). And it is judged by the stop detection part 102 whether the mobile body stopped (step S202).

  In step S202, the process proceeds to step S201 until the moving body stops (step S202: No), and when the moving body stops (step S202: Yes), the first storage unit 111 walks to the second storage unit 104. The user map data is transferred (step S203).

  Thereafter, it is determined whether or not the navigation device 100 has been removed from the mobile device 110 (step S204). In step S204, the navigation apparatus 100 is in a standby state until it is detached from the mobile device 110 (step S204: No loop). When the navigation device 100 is detached from the mobile device 110 (step S204: Yes), the walking data is used. Navigation processing is executed (step S205). And guidance for pedestrians is performed (Step S206), and a series of processings are ended.

  As described above, the navigation device 100 according to the present embodiment stores the pedestrian map data stored in the first storage unit 111 in the second storage unit 104 when the moving body stops. In this way, since guidance is performed using the pedestrian map data during walking, guidance suitable for pedestrians can be performed. Therefore, even when the user gets off the moving body and walks to the destination, the user can accurately reach the destination in a short time.

(Embodiment 2)
(Functional configuration of navigation device)
A functional configuration of the navigation device 300 according to the embodiment of the present invention will be described. FIG. 3 is a block diagram showing an example of a functional configuration of the navigation device 300 according to the present embodiment. In the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted as appropriate.

  In FIG. 3, the navigation device 300 is configured to be connectable to a mobile device 310. The mobile device 310 includes a first storage unit 311. The first storage unit 311 stores only the moving body map data.

  In addition, the navigation device 300 includes a connection detection unit 101, a stop detection unit 102, a second storage unit 104, a processing unit 105, a guide unit 106, a notification control unit 107, a generation unit 301, and a transfer unit. 302.

  The generation unit 301 generates pedestrian map data around the current position of the moving body using the moving body map data stored in the first storage unit 311 when the stop of the moving body is detected. . Specifically, the generation unit 301 extracts detailed map data from the map data for moving body, and further extracts information such as a sidewalk that is effective for guiding a pedestrian, thereby Generate map data. The generation unit 301 may receive additional information such as a sidewalk from an external server and generate pedestrian map data.

  The transfer unit 302 transfers the pedestrian map data generated by the generation unit 301 to the second storage unit 104.

(Navigation procedure of navigation device)
Next, a navigation processing procedure of the navigation device 300 will be described with reference to FIG. FIG. 4 is a flowchart showing an example of a navigation processing procedure of the navigation device 300 according to the present embodiment.

  In the flowchart of FIG. 4, the navigation device 300 is connected to the mobile device 110 and performs navigation processing using the mobile map data (step S <b> 401). Then, the stop detection unit 102 determines whether or not the moving body has stopped (step S402).

  In step S402, until the moving body stops (step S402: No), the process proceeds to step S401, and when the moving body stops (step S402: Yes), the moving body map stored in the first storage unit 311. Pedestrian map data around the current position of the moving object is generated using the data (step S403).

  Then, the generated pedestrian map data is transferred to the second storage unit 104 (step S404). Thereafter, it is determined whether or not the navigation device 300 has been removed from the mobile device 310 (step S405). In step S405, the navigation apparatus 300 is in a standby state until it is removed from the mobile device 310 (step S405: No loop). When the navigation device 300 is removed from the mobile device 310 (step S405: Yes), the walking map data is used. The navigation process is executed (step S406). And guidance for pedestrians is performed (Step S407), and a series of processings are ended.

  As described above, the navigation device 300 according to the present embodiment uses the moving body map data stored in the first storage unit 311 to store the pedestrian map data when the moving body stops. Since it is generated and stored in the second storage unit 104 and guidance is performed using the pedestrian map data during walking, guidance suitable for pedestrians can be performed. Therefore, even when the user gets off the moving body and walks to the destination, the user can accurately reach the destination in a short time.

(Embodiment 3)
(Functional configuration of navigation device)
A functional configuration of the navigation apparatus 500 according to the embodiment of the present invention will be described. FIG. 5 is a block diagram showing an example of a functional configuration of the navigation device 500 according to the present embodiment. Note that the same reference numerals in the third embodiment denote the same parts as those in the first or second embodiment, and a description thereof will be omitted as appropriate.

  The navigation device 500 includes a connection detection unit 101, a stop detection unit 102, a second storage unit 104, a processing unit 105, a guide unit 106, and an acquisition unit 501.

  The acquisition unit 501 acquires pedestrian map data around the current position of the moving body from an external server and stores it in the second storage unit 104 when the stop of the moving body is detected. Specifically, the acquisition unit 501 makes a transmission request for the pedestrian map data around the current position to the external server when the stop of the moving body is detected, and the acquisition unit 501 receives the request received in response to the transmission request. The pedestrian map data is stored in the second storage unit 104.

(Navigation procedure of navigation device)
Next, a navigation processing procedure of the navigation device 500 will be described with reference to FIG. FIG. 6 is a flowchart showing an example of the navigation processing procedure of the navigation device 500 according to the present embodiment.

  In the flowchart of FIG. 6, the navigation device 500 is connected to the mobile device 310, and executes navigation processing using the mobile map data (step S601). And it is judged by the stop detection part 102 whether the mobile body stopped (step S602).

  In step S602, until the moving body stops (step S602: No), the process proceeds to step S601. When the moving body stops (step S602: Yes), the pedestrian map data around the current position of the moving body is stored in the external server. (Step S603) and the acquired map data for pedestrians is stored in the second storage unit 104 (step S604).

  Thereafter, it is determined whether or not the navigation device 500 has been removed from the mobile device 310 (step S605). In step S605, the navigation device 500 is in a standby state until it is detached from the mobile device 310 (step S605: No loop). When the navigation device 500 is detached from the mobile device 310 (step S605: Yes), the walking map data is used. The navigation process is executed (step S606). And guidance for pedestrians is performed (Step S607), and a series of processings are ended.

  As described above, the navigation device 500 according to the present embodiment acquires the pedestrian map data from the external server and stores it in the second storage unit 104 when the moving body stops, and walks. Since guidance is sometimes performed using pedestrian map data, guidance suitable for pedestrians can be provided. Therefore, even when the user gets off the moving body and walks to the destination, the user can accurately reach the destination in a short time.

  Examples of the present invention will be described below. In the present embodiment, an example in which the navigation device of the present invention is implemented by a navigation device that is mounted on a vehicle and can be carried while walking will be described. In this example, a configuration in which guidance is performed using the pedestrian map data transferred from the mobile device shown in the first embodiment will be described.

(Hardware configuration of navigation device)
A hardware configuration of the navigation device 700 and the mobile device 800 according to the present embodiment will be described with reference to FIGS. 7 and 8. FIG. 7 is a block diagram illustrating an example of a hardware configuration of the navigation device 700 according to the present embodiment. FIG. 8 is a block diagram illustrating an example of a hardware configuration of the mobile device 800 according to the present embodiment.

  In FIG. 7, the navigation device 700 is detachable from the mobile device 800, and includes a CPU 701, a ROM 702, a RAM 703, a flash memory drive 704, a flash memory 705, and an audio I / F (interface). 706, a speaker 707, an input device 708, a video I / F 709, a display 710, a communication I / F 711, a GPS unit 712, and a sensor 713. Each component 701 to 713 is connected by a bus 720. The navigation device 700 has a battery 730 built therein.

  In FIG. 8, a mobile device 800 is fixedly disposed on a dashboard of a vehicle, and includes a magnetic disk drive 801, a magnetic disk 802, an optical disk drive 803, an optical disk 804, an audio I / F 805, A speaker 806, a communication I / F 807, a GPS unit 808, and various sensors 809 are provided. The constituent units 801 to 809 are connected to each other by a bus 820. The mobile device 800 includes a power supply unit 830. Hereinafter, description will be made with reference to FIG. 7 or FIG. 8 as appropriate.

  The CPU 701 governs overall control of the navigation device 700. The ROM 702 records various programs such as a boot program, a current location calculation program, a route search program, a route guidance program, a map data display program, and a map data transfer program. The RAM 703 is used as a work area for the CPU 701.

  The current location calculation program, for example, calculates the current location of the user or vehicle (the current location of the navigation device 700) based on output information from GPS units 712, 808 and various sensors 809 described later.

  The route search program searches for an optimal route from the departure point to the destination point using map data recorded on a magnetic disk 802 to be described later. Here, the optimum route is a shortest (or fastest) route to the destination point or a route that best matches a condition specified by the user. Further, not only the destination point but also a route to a stop point or a rest point may be searched. The searched guidance route is output to the audio I / Fs 706 and 805 and the video I / F 709 via the CPU 701.

  The route guidance program includes guidance route information searched by executing the route search program, current location information of the navigation device 700 calculated by executing the current location calculation program, and a map read from the magnetic disk 802. Real-time route guidance information is generated based on the data. The determined route guidance information is output to the audio I / Fs 706 and 805 and the video I / F 709 via the CPU 701.

  The map data display program displays map data recorded in a flash memory 705 and a magnetic disk 802 optical disk 804, which will be described later, on the display 710 by the video I / F 709.

  The map data transfer program uses map data (hereinafter referred to as “pedestrian map data”) recorded in the magnetic disk 802 and used for navigation processing for pedestrians based on output values of speeds of various sensors 809 described later. ) And transferred to the flash memory 705.

  The flash memory drive 704 controls the reading / writing of the data with respect to the flash memory 705 according to control of CPU701. The flash memory 705 records data written under the control of the flash memory drive 704. Specifically, the flash memory 705 records pedestrian map data. As the flash memory 705, for example, a memory card or a USB memory can be used.

  The magnetic disk drive 801 controls the reading / writing of the data with respect to the magnetic disk 802 according to control of CPU701. The magnetic disk 802 records data written under the control of the magnetic disk drive 801. As the magnetic disk 802, for example, an HD (hard disk) or an FD (flexible disk) can be used. Examples of data recorded on the magnetic disk 802 include map data (hereinafter referred to as “moving object map data”) used for navigation processing for moving objects, and pedestrian map data.

  The optical disk drive 803 controls the reading / writing of the data with respect to the optical disk 804 according to control of CPU701. The optical disc 804 is a detachable recording medium from which data is read according to the control of the optical disc drive 803. As the optical disc 804, a writable recording medium can be used. In addition to the optical disk 804, the removable recording medium may be an MO, a memory card, or the like.

  The audio I / Fs 706 and 805 are connected to audio output speakers 707 and 806. Audio is output from the speakers 707 and 806. The speaker 707 of the navigation device 700 is provided at an appropriate position of the device housing of the navigation device 700. In addition, the speaker 806 of the mobile device 800 is provided in a lower part of the dashboard, a side door, or the like. Further, when the navigation device 700 and the mobile device 800 are connected, sound is output from the speaker 806 of the mobile device 800.

  Examples of the input device 708 include a remote controller including a plurality of keys for inputting characters, numerical values, various instructions, a keyboard, a mouse, a touch panel, and the like.

  The video I / F 709 is connected to the display 710. Specifically, the video I / F 709 includes, for example, a graphic controller that controls the entire display 710, a buffer memory such as a VRAM (Video RAM) that temporarily records image information that can be displayed immediately, and a graphic controller. Based on the output image data, the display 710 is configured by a control IC or the like.

  The display 710 displays icons, cursors, menus, windows, or various data such as characters and images. As this display 710, for example, a CRT, a TFT liquid crystal display, a plasma display, or the like can be adopted.

  The communication I / F 711 of the navigation device 700 is connected to a network via wireless and functions as an interface between the navigation device 700 and the CPU 701. The communication I / F 711 is further connected to a communication network such as the Internet via wireless, and also functions as an interface between the communication network and the CPU 701. The communication I / F 711 may be configured to acquire pedestrian map data from, for example, a server (not shown).

  The communication I / F 807 of the mobile device 800 includes, for example, an FM tuner, a VICS (Vehicle Information and Communication System) / beacon receiver, a wireless navigation device, and other navigation devices, and is congested distributed from the VICS center. In addition to road traffic information such as traffic regulations, traffic status information such as congestion at junctions is acquired. VICS is a registered trademark.

  Further, the communication I / F 807 of the mobile device 800 is configured by an in-vehicle wireless device that performs two-way wireless communication with a wireless device installed on the roadside, for example, when DSRC (Dedicated Short Range Communication) is used. In addition to information on traffic conditions such as congestion at the junction, various information is acquired.

  GPS units 712 and 808 receive radio waves from GPS satellites and output information indicating the current location of navigation device 700. The output information of the GPS units 712 and 808 is used when the CPU 701 calculates the current location. The information indicating the current location is information for specifying one point on the map information such as latitude / longitude and altitude.

  The sensor 713 of the navigation device 700 detects the connection between the navigation device 700 and the mobile device 800. In addition, it is also possible to detect a connection signal due to connector connection or the like without being limited to sensing.

  Various sensors 809 of the mobile device 800 include a vehicle speed sensor, an acceleration sensor, an angular velocity sensor, and the like, and output information that can determine the position and behavior of the vehicle. The output values of the various sensors 809 are used for controlling the timing when transferring the pedestrian map data, in addition to calculating the current location of the navigation device 700 by the CPU 701, measuring the amount of change in speed and direction, and the like.

  The battery 730 is a storage battery that supplies power to the navigation device 700 when the navigation device 700 is detached from the mobile device 800. The power supply unit 830 supplies power to the navigation device 700 and the mobile device 800 and charges the battery 730 when the navigation device 700 and the mobile device 800 are connected.

  A connection detection unit 101, a stop detection unit 102, a transfer unit 103, a second storage unit 104, a processing unit 105, a guide unit 106, and the like included in the navigation device 100 and the mobile device 110 illustrated in FIG. The notification control unit 107 and the first storage unit 111 are recorded in the ROM 702, RAM 703, flash memory 705, magnetic disk 802, optical disk 804, etc. in the navigation apparatus 700 and the mobile device 800 shown in FIGS. The function is realized by the CPU 701 executing a predetermined program using each program and data, and controlling each unit in the navigation device 700 and the mobile device 800.

  That is, the navigation device 700 of the present embodiment executes the navigation program recorded in the ROM 702 as a recording medium in the navigation device 700, and the functions provided in the navigation device 100 shown in FIG. 1 are shown in FIG. Can be executed in the navigation processing procedure.

(Example of navigation processing performed by the navigation device)
Next, an example of navigation processing performed by the navigation device 700 according to the present embodiment will be described with reference to FIG. FIG. 9 is a flowchart illustrating an example of the navigation process of the navigation device 700 according to the present embodiment.

  In the flowchart of FIG. 9, the navigation device 700 is connected to the mobile device 800 and performs navigation processing using the mobile map data (step S <b> 901). At this time, the battery 730 is in a charged state (step S902). Then, based on the speed detection results by the various sensors 809, it is determined whether or not the vehicle has stopped (step S903). The determination in step S903 is specifically a determination of whether or not the speed of 0 km / h is detected by the various sensors 809.

  In step S903, until the vehicle stops (step S903: No), the process proceeds to step S901, and when the vehicle stops (step S903: Yes), a pedestrian within a predetermined range from the current position recorded on the magnetic disk 802. The map data is transferred to the flash memory 705 (step S904). The predetermined range is a range up to the periphery of the destination, for example, a range of 500 m.

  At this time, “removal prohibited” is displayed on the display 710 (step S905), and notification that the removal of the navigation device 700 and the mobile device 800 is prohibited and that data is being transferred are notified. The In step S905, not only the display but also the navigation device 700 and the mobile device 800 may be mechanically locked and cannot be removed.

  Then, it is determined whether or not the transfer of the pedestrian map data has been completed (step S906). In step S906, until the transfer of the pedestrian map data is finished (step S906: No), the process proceeds to step S904, and when the transfer of the pedestrian map data is finished (step S906: Yes), “removal prohibited” is displayed. The display is erased, and the normal screen display is restored (step S907).

  Thereafter, based on the detection result of the sensor 713, it is determined whether or not the navigation device 700 has been removed from the mobile device 800 (step S908). In step S908, the navigation device 700 is in a standby state until it is removed from the mobile device 800 (step S908: No loop). When the navigation device 700 is removed from the mobile device 110 (step S908: Yes), the battery 730 is powered off. Reef and perform navigation processing using the walking map data (step S909). And guidance for pedestrians is performed (Step S910), and a series of processings are ended.

  According to the above processing, when the moving body stops when it is detached from the mobile device 800, the pedestrian map data recorded on the magnetic disk 802 is transferred to the flash memory 705, and when walking, Since guidance is performed using map data for pedestrians, guidance suitable for pedestrians can be performed. Therefore, even when the user gets off the moving body and walks to the destination, the user can accurately reach the destination in a short time.

  Further, since the pedestrian map data stored in the flash memory 705 is within a predetermined range, the data capacity can be suppressed. In addition, since the notification that the removal of the navigation device 700 and the mobile device 800 is prohibited is performed during the data transfer, the loss of data due to the removal during the transfer can be prevented. In addition, since the battery 730 is mounted on the navigation device 700, a reduction in size and weight can be realized, and the navigation device 700 that is easy for the user to carry can be provided.

  In this embodiment, the pedestrian map data recorded on the magnetic disk 802 is transferred to the flash memory 705. In addition, only the mobile object map data is recorded on the magnetic disk 802. It is also possible to adopt a configuration in which the map data for pedestrians is generated and transferred to the flash memory 705 using the map data for the moving body. In addition, it is possible to obtain a pedestrian map data from an external server and record it in the flash memory 705.

(Example of display screen displayed on the display)
Next, an example of a display screen displayed on the display 710 of the navigation device 700 according to the present embodiment will be described with reference to FIGS. 10 and 11. FIG. 10 is an explanatory diagram showing an example of a display screen when the moving body map data is used. FIG. 11 is an explanatory diagram illustrating an example of a display screen when pedestrian map data is used.

  A display screen 1000 shown in FIG. 10 is a screen displayed when the moving body map data is used. Reference numeral 1001 indicates the current location of the vehicle. Reference numeral 1002 indicates a destination point.

  On the other hand, the display screen 1100 shown in FIG. 11 shows a screen displayed when the pedestrian map data is used. The display screen 1100 displays a current location 1101, a destination location 1102, a sidewalk 1103, a pedestrian crossing 1104, a pedestrian bridge 1105, and a private road 1106. A current location 1101 indicates the sidewalk 1103.

  When the user goes to the destination 1102, the guidance on the display screen 1000 shown in FIG. 10 may turn right on the private road 1106 shown in FIG. 11, but the guidance on the display screen 1100 shown in FIG. You can clearly see that you turn right ahead. Moreover, since the pedestrian crossing 1104, the pedestrian bridge 1105, etc. are displayed, the screen according to a pedestrian's position can be displayed and the user can understand the surrounding condition more correctly.

  As described above, according to the navigation device, the navigation method, the navigation program, and the recording medium of the present invention, the user can reach the destination accurately in a short time.

  The navigation method described in this embodiment can be realized by executing a program prepared in advance on a computer such as a personal computer or a workstation. This program is recorded on a computer-readable recording medium such as a hard disk, a flexible disk, a CD-ROM, an MO, and a DVD, and is executed by being read from the recording medium by the computer. The program may be a transmission medium that can be distributed via a network such as the Internet.

It is a block diagram which shows an example of a functional structure of the navigation apparatus concerning this Embodiment. It is a flowchart which shows an example of the navigation processing procedure of the navigation apparatus concerning this Embodiment. It is a block diagram which shows an example of a functional structure of the navigation apparatus concerning this Embodiment. It is a flowchart which shows an example of the navigation processing procedure of the navigation apparatus concerning this Embodiment. It is a block diagram which shows an example of a functional structure of the navigation apparatus concerning this Embodiment. It is a flowchart which shows an example of the navigation processing procedure of the navigation apparatus concerning this Embodiment. It is a block diagram which shows an example of the hardware constitutions of the navigation apparatus concerning a present Example. It is a block diagram which shows an example of the hardware constitutions of the mobile apparatus concerning a present Example. It is a flowchart which shows an example of the navigation process of the navigation apparatus concerning a present Example. It is explanatory drawing which shows an example of the display screen at the time of using the map data for moving bodies. It is explanatory drawing which shows an example of the display screen at the time of using the map data for pedestrians.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Navigation apparatus 101 Connection detection part 102 Stop detection part 103 Transfer part 104 2nd storage part 105 Processing part 106 Guide part 107 Notification control part 110 Mobile device 111 1st storage part 300 Navigation apparatus 301 Generation part 302 Transfer part 310 Mobile device 311 First storage unit 500 Navigation device 501 Acquisition unit 700 Navigation device 705 Flash memory 730 Battery 800 Mobile device 830 Power supply unit

Claims (11)

Map data used for navigation processing for moving bodies (hereinafter referred to as “map data for moving bodies”) and map data used for navigation processing for pedestrians (hereinafter referred to as “map data for pedestrians”) are stored. A navigation device that is connected to a mobile device mounted on a mobile body and has a storage means for executing a navigation process,
A second storage means;
Connection detection means for detecting whether or not the mobile device is connected;
Processing means for executing navigation processing for a mobile object using the map data for mobile object stored in the first storage means when connection with the mobile device is detected;
Stop detection means for detecting whether or not the moving body has stopped; and
When the stop of the moving body is detected, the pedestrian map data around the current position of the moving body among the pedestrian map data stored in the first storage means is stored in the second storage. A transfer means for transferring to the means;
With
The processing means executes a pedestrian navigation process using the pedestrian map data stored in the second storage means when connection with the mobile device is not detected. A navigation device characterized by the above. A first storage means for storing map data used for navigation processing for a mobile unit (hereinafter referred to as “mobile unit map data”) is connected to a mobile unit mounted on the mobile unit for navigation processing. A navigation device to perform,
A second storage means;
Connection detection means for detecting whether or not the mobile device is connected;
Processing means for executing navigation processing for a mobile object using the map data for mobile object stored in the first storage means when connection with the mobile device is detected;
Stop detection means for detecting whether or not the moving body has stopped; and
Map data used for navigation processing for pedestrians around the current position of the mobile object using the mobile object map data stored in the first storage means when the stop of the mobile object is detected Generating means (hereinafter referred to as “pedestrian map data”);
Transfer means for transferring the pedestrian map data to the second storage means;
With
The processing means executes a pedestrian navigation process using the pedestrian map data stored in the second storage means when connection with the mobile device is not detected. A navigation device characterized by the above. A first storage means for storing map data used for navigation processing for a mobile unit (hereinafter referred to as “mobile unit map data”) is connected to a mobile unit mounted on the mobile unit for navigation processing. A navigation device to perform,
A second storage means;
Connection detection means for detecting whether or not the mobile device is connected;
Processing means for executing navigation processing for a mobile object using the map data for mobile object stored in the first storage means when connection with the mobile device is detected;
Stop detection means for detecting whether or not the moving body has stopped; and
When the stop of the moving body is detected, map data used for navigation processing for pedestrians around the current position of the moving body (hereinafter referred to as “pedestrian map data”) is acquired from an external server and Acquisition means for storing in the second storage means;
With
The processing means executes a pedestrian navigation process using the pedestrian map data stored in the second storage means when connection with the mobile device is not detected. A navigation device characterized by the above.   The navigation device according to any one of claims 1 to 3, wherein the pedestrian map data stored in the second storage means is map data within a predetermined range around the current position. . The mobile device further includes power supply means for supplying power,
4. The navigation device according to claim 1, further comprising power storage means for storing power from the power supply means when connection with the mobile device is detected. The navigation device described in 1.   The navigation device further includes notification control means for notifying removal prevention from the mobile device when pedestrian map data is transferred to the second storage means by the transfer means. The navigation device according to claim 1. Map data used for navigation processing for moving bodies (hereinafter referred to as “map data for moving bodies”) and map data used for navigation processing for pedestrians (hereinafter referred to as “map data for pedestrians”) are stored. A navigation method for a navigation device that performs a navigation process by connecting to a mobile device mounted on a mobile body with a storage means of
A connection detection step of detecting whether or not the mobile device is connected;
When a connection with the mobile device is detected, a processing step of executing a mobile navigation process using the mobile map data stored in the first storage means;
A stop detection step of detecting whether or not the moving body has stopped,
When the stop of the moving body is detected, the pedestrian map data around the current position of the moving body among the pedestrian map data stored in the first storage means is stored in the second storage. A transfer step of transferring to the means;
Including
When the connection to the mobile device is not detected, the processing step performs a pedestrian navigation process using the pedestrian map data stored in the second storage means. A navigation method characterized by the above. A first storage means for storing map data used for navigation processing for a mobile unit (hereinafter referred to as “mobile unit map data”) is connected to a mobile unit mounted on the mobile unit for navigation processing. A navigation method for a navigation device to be executed,
A connection detection step of detecting whether or not the mobile device is connected;
When a connection with the mobile device is detected, a processing step of executing a mobile navigation process using the mobile map data stored in the first storage means;
A stop detection step of detecting whether or not the moving body has stopped,
Map data used for navigation processing for pedestrians around the current position of the mobile object using the mobile object map data stored in the first storage means when the stop of the mobile object is detected (Hereinafter referred to as “pedestrian map data”)
A transfer step of transferring the pedestrian map data to the second storage means;
Including
When the connection to the mobile device is not detected, the processing step performs a pedestrian navigation process using the pedestrian map data stored in the second storage means. A navigation method characterized by the above. A first storage means for storing map data used for navigation processing for a mobile unit (hereinafter referred to as “mobile unit map data”) is connected to a mobile unit mounted on the mobile unit for navigation processing. A navigation method for a navigation device to be executed,
A connection detection step of detecting whether or not the mobile device is connected;
When a connection with the mobile device is detected, a processing step of executing a mobile navigation process using the mobile map data stored in the first storage means;
A stop detection step of detecting whether or not the moving body has stopped,
When the stop of the moving body is detected, map data used for navigation processing for pedestrians around the current position of the moving body (hereinafter referred to as “pedestrian map data”) is acquired from an external server and An acquisition step of storing in the second storage means;
Including
When the connection to the mobile device is not detected, the processing step performs a pedestrian navigation process using the pedestrian map data stored in the second storage means. A navigation method characterized by the above.   A navigation program that causes a computer to execute the navigation method according to claim 7.   11. A computer-readable recording medium on which the navigation program according to claim 10 is recorded.

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