JPWO2008078367A1 - Route guidance device, route guidance method, route guidance program, and recording medium - Google Patents

Abstract

In the recording unit (101), the movement history in which the date and time of movement is associated with the information related to the history route that the moving body has moved to the destination point is recorded. Then, when it is determined from the detection result by the detection unit (102) that the power source of the moving body is activated, the current date and time are acquired by the date and time acquisition unit (103) and the position of the current point is acquired by the position acquisition unit (104). Get information. Then, based on the current date and time, the location information of the current location, and the movement history, the determination unit (105) determines the destination location and the history route to the destination location. Next, when the position information of the current point acquired by the position acquisition unit (104) deviates from the history route, the search unit 107 searches for a guidance route to the destination point. Then, the guidance route to the searched destination point is displayed on the display unit (108).

Description

  The present invention relates to a route guidance device, a route guidance method, a route guidance program, and a recording medium that determine a destination point based on a movement history of a moving body. However, the use of the present invention is not limited to the above-described route guidance device, route guidance method, route guidance program, and recording medium.

  Conventionally, when a destination point is set by the user through the input unit and guidance to the destination point is started, the control unit stores the destination point location information in the storage unit at a preset timing. The location information of the destination point is stored in the history table. The stored position information is displayed on the display unit when the user sets the destination point, and a navigation device is proposed in which the user selects from the displayed position information and sets the destination point ( For example, see the following Patent Document 1.)

JP 2006-153728 A

  However, in the technique of the above-mentioned patent document 1, since the destination point useful for the user is stored, it is not complicated when setting the destination point. An example is the problem of having to set a destination point during driving if the vehicle is not set and is off the route. Another example is a problem that the user cannot concentrate on driving by setting the destination point during driving.

  In order to solve the above-described problems and achieve the object, the route guidance device according to the invention of claim 1 records the movement history in which the moving date is associated with the information on the history route that the moving body has moved to the destination point. Recording means, date acquisition means for acquiring the current date and time, position acquisition means for acquiring position information of the current location of the mobile object, current date and time acquired by the date and time acquisition means and current acquisition acquired by the position acquisition means Based on the position information of the point and the movement history recorded in the recording unit, a determination unit that determines a destination point and a history route to the destination point, and a current point acquired by the position acquisition unit are Search means for searching for a guide route to the destination point when the history route to the destination point determined by the determining unit is deviated; and the search Display means for displaying a guide route searched by the stage, characterized in that it comprises a.

  According to a sixth aspect of the present invention, there is provided a route guidance method for recording a movement history in which information relating to a history route on which a mobile body has moved to a destination point is associated with the date and time of movement in a recording means, and acquiring the current date and time. A date and time acquisition step, a position acquisition step of acquiring position information of the current location of the mobile object, a current date and time acquired by the date and time acquisition step, location information of the current location acquired by the location acquisition step, and the recording means Based on the recorded movement history, a determination step for determining a destination point and a history route to the destination point, and a current point acquired by the position acquisition step, the target determined by the determination step A search step for searching for a guide route to the target point when the route deviates from a history route to the point, and a guide route searched by the search step are displayed. Characterized in that it comprises the steps of, a.

  A route guidance program according to a seventh aspect of the invention causes a computer to execute the route guidance method according to the sixth aspect.

  A recording medium according to an eighth aspect of the invention is characterized in that the route guidance program according to the seventh aspect is recorded in a computer-readable state.

FIG. 1 is a block diagram of a functional configuration of the route guidance device according to the embodiment. FIG. 2 is a flowchart showing a route guidance processing procedure of the route guidance device. FIG. 3 is a block diagram of a hardware configuration of the navigation device according to the present embodiment. FIG. 4 is an explanatory diagram showing an example of the contents of the travel history database. FIG. 5 is a flowchart showing the contents of processing of the navigation device. FIG. 6 is an explanatory diagram showing a detailed example of the route guidance process shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Route guidance apparatus 101 Recording part 102 Detection part 103 Date acquisition part 104 Position acquisition part 105 Determination part 106 Selection part 107 Search part 108 Display part

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

(Embodiment)
(Functional configuration of the route guidance device)
First, the functional configuration of the route guidance device 100 according to the embodiment of the present invention will be described. FIG. 1 is a block diagram of a functional configuration of the route guidance device according to the embodiment.

  In FIG. 1, a route guidance device 100 includes a recording unit 101, a detection unit 102, a date acquisition unit 103, a position acquisition unit 104, a determination unit 105, a selection unit 106, a search unit 107, and a display unit 108. And. The recording unit 101 records a movement history in which the date and time of movement is associated with information related to the history route that the moving body has moved to the destination point. The movement history may be associated with a movement frequency representing the number of times the moving body has moved to each destination point. Specifically, when the moving body is a vehicle, this is a database that records a driving history including a day of the week, an engine start time, a departure point, a destination point, a driving frequency, and route information. The recording unit 101 may record map data. Here, the map data includes road network data composed of nodes and links, and image data drawn using features relating to facilities, roads, and other terrain (mountains, rivers, land). The map data may include text information, information such as facility names and addresses, road and facility images, and the like.

  The detection part 102 detects the starting state of the power supply of a moving body. Specifically, for example, when the moving body is a vehicle, it is detected whether the engine of the vehicle is activated. For example, the detection unit 102 may detect whether or not the route guidance device 100 is activated. Then, when the detection unit 102 detects the activation state of the power source, route guidance is started. Specifically, for example, the processing of each component described later is started.

  The date acquisition unit 103 acquires the current date and time. Acquisition of the current date and time is acquired by, for example, a timer provided in the moving body. The date acquisition unit 103 may acquire the day of the week together with the current date. Specifically, for example, the day of the week is acquired based on the calendar information recorded in the recording unit 101 and the current date and time. Furthermore, the date and time acquisition unit 103 may acquire the activation time when the activation state is detected by the detection unit 102 and the start time when the moving body starts moving.

  The position acquisition unit 104 acquires position information on the current location of the moving object. The position information of the current location of the mobile object is acquired by, for example, a GPS unit or an acceleration sensor provided in the vehicle. Further, the position acquisition unit 104 may acquire position information of a starting point where the moving body starts moving or a point where the moving body stops moving.

  Based on the current date and time acquired by the date and time acquisition unit 103 and the current location information acquired by the position acquisition unit 104 and the movement history recorded in the recording unit 101, the determination unit 105 Determine the historical route to the point. Moreover, the determination part 105 may determine the guidance route to the destination point. Furthermore, the determination unit 105 may determine a plurality of destination points and history routes to the destination points. For example, the destination point and the history route to the destination point may be determined by providing a predetermined width for the time acquired by the date and time acquisition unit 103. Specifically, the destination point may be determined with a width of about 30 minutes before or after the start time or start time acquired by the date acquisition unit 103.

  In addition, the determination unit 105 determines the history route to the destination point and the destination point based on the current date and time and the current location information when the mobile body starts moving, and the movement history recorded in the recording unit 101. To decide. Specifically, for example, the history route from the travel history to the destination point and the destination point is determined based on the startup time of the mobile object or the startup time of the route guidance device 100 and the position information of the departure point.

  When the determination unit 105 determines a plurality of destination points and history routes to the destination points, the selection unit 106 selects one destination point based on the movement frequency included in the movement history. The movement frequency is, for example, information on how many times the moving body has moved on the same route of the day of the week, the start time, the departure point, and the destination point. For example, the selection unit 106 selects a destination point having the highest movement frequency.

  When the current location acquired by the position acquisition unit 104 deviates from the history route to the destination point determined by the determination unit 105, the search unit 107 searches for a guidance route to the destination point. In addition, when the determination unit 105 determines a plurality of destination points, the search unit 107 searches for a guidance route to the one destination point selected by the selection unit 106. In addition, when the determination unit 105 determines a plurality of destination points and history routes to the destination points, the search unit 107 may search for guidance routes for the plurality of destination points.

  The display unit 108 displays the guidance route searched by the search unit 108. The display unit 108 may display a history route to the destination point determined by the determination unit 105, for example. Further, the display unit 108 may display a plurality of history routes and / or guidances when a plurality of destination points and history routes to the destination points are determined by the determination unit 105, or when a plurality of guidance routes are searched by the search unit 107. A route may be displayed. Moreover, you may output audio | voice information simultaneously with a display.

(Route guidance processing procedure of the route guidance device)
Next, a route guidance processing procedure of the route guidance device 100 will be described. FIG. 2 is a flowchart showing a route guidance processing procedure of the route guidance device. In the flowchart of FIG. 2, first, the movement history in which the date and time of movement is associated with the information related to the route that the moving body has moved to the destination point is recorded in the recording unit 101 (step S201). Specifically, for example, each time a moving body moves, a departure point, a destination point, a start time, a movement frequency, and the like are recorded as a movement history.

  Then, based on the detection result by the detection unit 102, the mobile unit waits until the power source of the moving body is started (step S202: No loop), and when the power source of the mobile unit is started (step S202: Yes), the date acquisition unit 103 The date and time are acquired (step S203). In step S203, the date and time acquisition unit 103 may acquire a start time when the moving body starts moving. Together with step S203, the position acquisition unit 104 acquires position information of the current location (step S204). In step S <b> 204, the position acquisition unit 104 may acquire position information of a departure point where the moving body starts moving. Based on the current date and time acquired in step S203, the position information of the current location acquired in step S204, and the movement history recorded in step S201, the determination unit 105 determines the destination location (step S205). In step S205, a history route to the determined destination point may be determined.

  Next, it waits until the position information of the current location acquired in step S204 deviates from the history route to the destination point determined in step S205 (step S206: No loop). In step S206: Yes), the search unit 107 searches for a guidance route to the destination point (step S207). Next, it is determined whether or not there are a plurality of destination points searched for guidance routes in step S207 (step S208). If there is only one destination point in step S208 (step S208: No), the guidance route to the destination point searched in step S207 is displayed (step S210), and the series of processes is terminated.

  On the other hand, when there are a plurality of destination points in Step S208 (Step S208: Yes), the selection unit 106 selects one destination point based on the movement frequency included in the movement history (Step S209). In step S209, for example, a plurality of guidance routes searched in step S207 may be displayed to accept a selection instruction from the user. And it progresses to step S210, the guidance path | route to the one destination point selected in step S209 is displayed, and a series of processes are complete | finished.

  In the flowchart of FIG. 2, if there are a plurality of destination points in step S208: Yes, the process proceeds to step S209 to select one destination point, but the present invention is not limited to this. Specifically, for example, the process may directly proceed to step S210 to display guidance routes to a plurality of destination points.

  As described above, according to the route guidance device 100 of the present embodiment, the recording unit 101 records the movement history in which the moving date is associated with the information about the route that the moving body has moved to the destination point. Then, based on the current date and time acquired by the date and time acquisition unit 103 and the position information of the current location acquired by the location acquisition unit 104 and the movement history, the determination unit 105 determines the history route to the destination point and the destination point. When the route is determined and deviated from the history route, a search route to the destination point can be searched for by the search unit 107 and displayed on the display unit 108. Therefore, by using the movement history, if the current date and time and the location information of the current location are acquired, the destination location and the history route are determined. Further, if the mobile body deviates from the history route, the guidance route to the destination location is determined. You can search automatically. This allows the user to automatically search for the guidance route and display the guidance route to the destination when he / she is unable to follow the route he / she normally travels due to, for example, construction or an accident. There is no hassle of performing an operation for starting route guidance, and it is possible to concentrate on driving.

  Further, according to the route guidance device 100 of the present embodiment, the determination unit 105 is based on the current date and time position information when the moving body starts moving and the position information of the current location and the movement history recorded in the recording unit 101. The destination point can be determined. Therefore, for example, the route guidance can be started from the start of movement by the moving body. As a result, the user can automatically start route guidance when the vehicle starts traveling, for example, so that the user can automatically search for the guidance route even if the user immediately deviates from the route immediately after the start of traveling. Thus, since the guidance route to the destination point can be displayed, there is no trouble of performing an operation for starting the route guidance during driving, and it is possible to concentrate on driving.

  Moreover, according to the route guidance device 100 of the present embodiment, the date and time acquisition unit 103 can acquire the day of the week together with the current date and time. Therefore, since the movement history can be managed in units of days of the week, it is possible to grasp the tendency regarding the movement of the user. As a result, even if the user does not set a destination point, such as a route that travels regularly, if the user goes out of the history route to the destination point, he / she automatically searches for the guidance route and guides to the destination point. Since the route can be displayed, there is no inconvenience of performing an operation for starting route guidance during driving, and it is possible to concentrate on driving.

  Further, according to the route guidance device 100 of the present embodiment, when a plurality of destination points are determined by the determination unit 105, the selection unit 106 selects one destination point based on the movement frequency included in the movement history. The search unit 107 can search for a guidance route to the selected destination point. Therefore, for example, even if a plurality of destination points are determined from the movement history, the route with the highest movement frequency can be selected. As a result, when a plurality of destination points are determined and the user deviates from the history route to these destination points, the user can select a guide route to the destination point that is often preferentially approached without selecting one route. Can be displayed.

  Moreover, according to the route guidance device 100 of the present embodiment, when the detection unit 102 detects the activation state of the power source of the moving body, the destination point can be determined. Therefore, for example, the destination point can be determined when the engine is started before the moving body starts moving. This allows the user to display the guidance route without performing the operation for starting the route guidance when the user cannot travel on the history route when the vehicle starts to travel. Can be confirmed.

  Examples of the present invention will be described below. In the present embodiment, an example in which the route guidance device of the present invention is implemented by a navigation device mounted on a moving body such as a vehicle (including a four-wheeled vehicle and a two-wheeled vehicle) will be described.

(Hardware configuration of navigation device)
Next, a hardware configuration of the navigation device 300 according to the present embodiment will be described. FIG. 3 is a block diagram of a hardware configuration of the navigation device according to the present embodiment. In FIG. 3, the navigation device 300 includes a CPU 301, a ROM 302, a RAM 303, a magnetic disk drive 304, a magnetic disk 305, an optical disk drive 306, an optical disk 307, an audio I / F (interface) 308, and a microphone 309. A speaker 310, an input device 311, a video I / F 312, a display 313, a communication I / F 314, a GPS unit 315, various sensors 316, and a camera 317. Each component 301 to 317 is connected by a bus 320.

  First, the CPU 301 governs overall control of the navigation device 300. The ROM 302 records programs such as a boot program and a data update program. The RAM 303 is used as a work area for the CPU 301. That is, the CPU 301 controls the entire navigation device 300 by executing various programs recorded in the ROM 302 while using the RAM 303 as a work area.

  The magnetic disk drive 304 controls the reading / writing of the data with respect to the magnetic disk 305 according to control of CPU301. The magnetic disk 305 records data written under the control of the magnetic disk drive 304. As the magnetic disk 305, for example, an HD (hard disk) or an FD (flexible disk) can be used.

  The optical disk drive 306 controls reading / writing of data with respect to the optical disk 307 according to the control of the CPU 301. The optical disk 307 is a detachable recording medium from which data is read according to the control of the optical disk drive 306. As the optical disc 307, a writable recording medium can be used. As a removable recording medium, in addition to the optical disk 307, an MO, a memory card, or the like may be used.

  An example of information recorded on the magnetic disk 305 and the optical disk 307 is a travel history database. The travel history database, which will be described in detail with reference to FIG. 4, is a travel history in which the date and time of movement is associated with information related to the route that the moving body has moved to the destination point. Specifically, for example, a history of a day on which a route is traveled, an engine start time, a departure point, a destination point, a travel frequency, route information, and the like. The traveling history may be constantly updated during traveling.

  Other examples of information recorded on the magnetic disk 305 and the optical disk 307 include map data and function data. The map data includes background data that represents features (features) such as buildings, rivers, and the ground surface, and road shape data that represents the shape of the road, and is composed of multiple data files divided by district. Has been.

  The road shape data further includes traffic condition data. The traffic condition data includes, for example, whether or not there is a signal or a pedestrian crossing, whether or not there is a highway doorway or junction, the length (distance) of each link, road width, direction of travel, road type (highway, Such as toll roads and general roads).

  The function data is three-dimensional data representing the shape of the facility on the map, character data representing the description of the facility, and other various data other than the map data. Map data and function data are recorded in blocks divided by district or function. Specifically, for example, the map data is recorded in a state where each block can be divided into blocks so that each map represents a predetermined district on the map displayed on the display screen. Further, for example, the function data is recorded in a state where each function can be divided into a plurality of blocks so as to realize one function.

  The function data is data for realizing functions such as program data for realizing route search, calculation of required time, route guidance, etc. in addition to the above-described three-dimensional data and character data. Each of the map data and the function data is composed of a plurality of data files divided for each district or each function.

  The audio I / F 308 is connected to a microphone 309 for audio input and a speaker 310 for audio output. The sound received by the microphone 309 is A / D converted in the sound I / F 308. For example, the microphone 309 may be installed near the sun visor of the vehicle, and the number thereof may be one or more. From the speaker 310, a sound obtained by D / A converting a predetermined sound signal in the sound I / F 308 is output. Note that the sound input from the microphone 309 can be recorded on the magnetic disk 305 or the optical disk 307 as sound data.

  Examples of the input device 311 include a remote controller having a plurality of keys for inputting characters, numerical values, various instructions, and the like, a keyboard, and a touch panel. The input device 311 may be realized by any one form of a remote control, a keyboard, and a touch panel, but may be realized by a plurality of forms.

  The video I / F 312 is connected to the display 313. Specifically, the video I / F 312 is output from, for example, a graphic controller that controls the entire display 313, a buffer memory such as a VRAM (Video RAM) that temporarily records image information that can be displayed immediately, and a graphic controller. And a control IC for controlling the display 313 based on the image data to be processed.

  The display 313 displays icons, cursors, menus, windows, or various data such as characters and images. On the display 313, the map data described above is drawn two-dimensionally or three-dimensionally. The map data displayed on the display 313 can be displayed with a mark representing the current position of the vehicle on which the navigation device 300 is mounted. The current position of the vehicle is calculated by the CPU 301.

  As the display 313, for example, a CRT, a TFT liquid crystal display, a plasma display, or the like can be used. The display 313 is installed near the dashboard of the vehicle, for example. A plurality of displays 313 may be installed in the vehicle, for example, in the vicinity of the dashboard of the vehicle or in the vicinity of the rear seat of the vehicle.

  The communication I / F 314 is connected to a network via wireless and functions as an interface between the navigation device 300 and the CPU 301. The communication I / F 314 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 301.

  Communication networks include LANs, WANs, public line networks and mobile phone networks. Specifically, the communication I / F 314 includes, for example, an FM tuner, a VICS (Vehicle Information and Communication System) / beacon receiver, a radio navigation device, and other navigation devices. Obtain road traffic information such as regulations. VICS is a registered trademark.

  The GPS unit 315 receives radio waves from GPS satellites and outputs information indicating the current position of the vehicle. The output information of the GPS unit 315 is used when the CPU 301 calculates the current position of the vehicle together with output values of various sensors 316 described later. The information indicating the current position is information for specifying one point on the map data, such as latitude / longitude and altitude.

  The various sensors 316 output information for determining the position and behavior of the vehicle, such as a vehicle speed sensor, an acceleration sensor, and an angular velocity sensor. The output values of the various sensors 316 are used for the calculation of the current position of the vehicle by the CPU 301 and the amount of change in speed and direction. Further, the various sensors 316 may output information for determining the engine start state, such as a voltage device. Further, the various sensors 316 may output information on the current time and information on the day of the week using a timer or the like.

  The camera 317 captures images inside or outside the vehicle. The image may be either a still image or a moving image. For example, the behavior of the passenger inside the vehicle is photographed by the camera 317, and the photographed image is output to a recording medium such as the magnetic disk 305 or the optical disk 307 via the video I / F 312. To do. The camera 317 captures a situation outside the vehicle, and outputs the captured video to a recording medium such as the magnetic disk 305 or the optical disk 307 via the video I / F 312. Further, the camera 317 has an infrared camera function, and the surface temperature distributions of objects existing inside the vehicle can be relatively compared based on video information captured using the infrared camera function. The video output to the recording medium is overwritten and stored.

  The recording unit 101, the detection unit 102, the date and time acquisition unit 103, the position acquisition unit 104, the determination unit 105, the selection unit 106, the search unit 107, and the display unit 108 included in the route guidance device 100 illustrated in FIG. 1 are illustrated in FIG. Using the programs and data recorded in the ROM 302, the RAM 303, the magnetic disk 305, the optical disk 307, etc. in the navigation device 300, the CPU 301 executes a predetermined program and controls each part in the navigation device 300 to realize its function. To do.

  That is, the navigation apparatus 300 according to the embodiment has the functions provided in the route guidance device shown in FIG. 1 by executing the route guidance program recorded in the ROM 302 as a recording medium in the navigation device 300, as shown in FIG. Can be executed by the route guidance processing procedure.

(An example of the contents of the travel history database)
Next, an example of the contents of the travel history database will be described with reference to FIG. FIG. 4 is an explanatory diagram showing an example of the contents of the travel history database. In FIG. 4, the travel history database 400 includes a day of the week 401, a start time 402, a departure point 403, a destination point 404, a travel frequency 405, and route information 406.

  The day of the week 401 is the day of the week when the engine of the vehicle is activated, and the activation time 402 is the time when the engine of the vehicle is activated. Further, the departure point 403 is position information of a point where the vehicle engine is started, and the destination point 404 is position information of a point where the vehicle engine is stopped. Therefore, a destination point candidate can be selected depending on what day of the week and at which departure point. Furthermore, the traveling frequency 405 is information on how many times the vehicle has traveled on the same route of the day of the week 401, the start time 402, the departure point 403, and the destination point 404. The route information 406 is information regarding each route, for example, information on a history route that has traveled in the past. The route information 406 may be information on a plurality of history routes in which the departure point 403 and the destination point 404 are the same.

  In FIG. 4, specifically, for example, it can be confirmed that the number of times of starting the engine at 8:30 on Monday and traveling to the company from home is 5 times. For example, when the engine is started at 8:00 on Monday, it can be confirmed that the number of times of traveling to kindergarten is 10 times. Therefore, for example, when the engine is started at 8 o'clock on Monday, it is expected to go to kindergarten. Thereby, the navigation apparatus 300 can confirm the history route from the home to the kindergarten without any operation by the user.

(Contents of processing of navigation device 300)
Next, the processing contents of the navigation device 300 will be described. FIG. 5 is a flowchart showing the contents of processing of the navigation device. In the flowchart of FIG. 5, first, waiting until the vehicle engine is started (step S501: No), and when the engine is started (step S501: Yes), the engine is started in step S501 by timers provided for various sensors. The starting time 402 and the day of the week 401 are acquired (step S502). In step S501, whether or not the engine has been started is determined from, for example, outputs from voltage devices included in various sensors 316. In step S502, the start time 402 and the day of the week 401 when the engine is started are acquired. However, the present invention is not limited to this. Specifically, for example, it may be determined whether or not the vehicle has started traveling by the output of an acceleration sensor or the like included in the various sensors 316, and the time when the vehicle has started traveling may be acquired.

  In addition to the step S502, the point where the engine is started (the departure point 403) is acquired by the GPS unit 315 (step S503). A candidate destination point 404 is determined based on the start time 402 and day of week 401 acquired in step S502, the departure point 403 acquired in step S503, and the travel history database 400 described in FIG. Step S504). In step S504, the history route to the destination point may be determined together with the determined destination point.

  Next, the current location of the vehicle is acquired, and it is determined whether or not the vehicle has deviated from the history route to the candidate destination location 404 determined in step S504 (step S505). When it deviates from the history route in step S505 (step S505: Yes), the guidance route to the destination point determined in step S504 is searched (step S506). Further, it is determined whether or not there are a plurality of destination points determined in step S504 (step S507). If it is determined in step S505 that there is one candidate destination point 404 (step S507: No), the guidance route searched in step S508 is displayed (step S508).

  And it is judged whether the engine of the vehicle stopped by the output of the voltage device with which various sensors 316 are provided, etc. (Step S509). In step S509, whether or not the vehicle has stopped traveling may be determined by an acceleration sensor provided in the various sensors 316 or the like. If it is determined in step S509 that the engine of the vehicle has been stopped (step S509: Yes), the current location of the place where it is determined that the engine has been stopped in step S509 is acquired (step S510).

  It is determined whether or not the current location acquired in step S510 is the destination location 404 recorded in the travel history database 400 (step S511). When it is determined that the destination point 404 is determined in step S511 (step S511: Yes), the travel frequency 405 in the travel history database 400 is increased by 1 (step S512), and the series of processes is terminated.

  On the other hand, when it is determined that there are a plurality of candidate destination points 404 in step S507 (step S507: Yes), the plurality of destination points 404 determined in step S507 are searched for on the display 313 in step S506, respectively. Is displayed (step S513). Then, it is determined whether one destination point has been selected within a predetermined time from each guidance route displayed in step S513 (step S514). If it is determined in step S514 that one destination point has been selected (step S514: Yes), the process returns to step S508, the guidance route of the one destination point selected in step S514 is displayed, and the subsequent processing is repeated. Do it.

  If it is determined in step S514 that one destination point is not selected (step S514: No), a destination point with a high travel frequency 405 is selected in the travel history database 400 (step S515), and the process proceeds to step S508. The guidance route to the destination point with the high travel frequency 405 selected in step S515 is displayed, and the subsequent processing is repeated.

  Furthermore, if it is determined in step S505 that the route has deviated from the history route (step S505: No), the process proceeds to step S509, and the subsequent processing is repeated. If it is determined in step S509 that the vehicle engine is not stopped (step S509: No), if it is determined in step S511 that it is not the destination point 404 (step S511: No), the process returns to step S505. The subsequent processing is repeated.

  In the flowchart of FIG. 5, it is determined whether one destination point has been selected in step S514, but the present invention is not limited to this. Specifically, for example, the destination points may not be selected, and the routes other than the route corresponding to the route on which the vehicle is traveling may not be displayed in order while the guidance route to each destination point is displayed. In other words, when the route to each destination point 404 overlaps, the destination point 404 where the route overlaps may be left displayed.

(Detailed example of route guidance processing)
Next, a detailed example of the route guidance process shown in FIG. 5 will be described. FIG. 6 is an explanatory diagram showing a detailed example of the route guidance process shown in FIG. In FIG. 6, the home 601, the company 602, the kindergarten 603, the supermarket 604, the history route 605 to the company, the history route 606 to the kindergarten, the current location 607 of the vehicle, and the searched company A guidance route 608 and a guidance route 609 to the searched kindergarten are displayed. These are displayed on the display 313, for example.

  In FIG. 6, it is assumed that the vehicle is started at home 601 at 8:10 on Monday. Therefore, in the travel history database 400 of FIG. 4, the day 401 is the month, the activation time 402 is close to 8:10, and the departure point 403 determines the destination point 404 corresponding to the home 601. Further, a history route to the destination point 404 is determined from the route information 406 corresponding to the determined destination point 404. Here, for the activation time 402, for example, a range of 30 minutes before and after may be searched. Specifically, for example, when the activation time 402 is 8:10, the destination point 404 corresponding to the time from 7:40 to 8:40 may be determined. Based on these, two destination points 404 of the company 602 and the kindergarten 603 are determined. Therefore, in FIG. 6, the history route 605 to the company and the history route 606 to the kindergarten are displayed. Further, for example, the route may not be displayed until the vehicle deviates from all the determined history routes. Specifically, for example, since the user is familiar with a route that is traveling regularly, the route need not be displayed.

  Further, a case where the vehicle deviates from the history route will be described. Here, the determination as to whether or not the history route has been exceeded is, specifically, to the history route 605 to the company determined when the vehicle's current location 607 has started the engine at the home 601 and to the kindergarten. The determination may be made based on whether or not the two history paths 606 are out of the two history paths. In FIG. 6, the current location 607 of the vehicle deviates from two history routes, a history route 605 to the company and a history route 606 to the kindergarten. Therefore, the navigation apparatus 300 searches for the guidance route, and displays the guidance route 608 to the searched company and the guidance route 609 to the searched kindergarten. Specifically, for example, when the current location 607 of the vehicle deviates from all the determined history routes, the guidance route display may be started.

  In the explanatory diagram of FIG. 6, the history route 605 to the company and the history route 606 to the kindergarten are determined, but the present invention is not limited to this. Specifically, for example, based on the travel frequency 405 of the travel history database 400 of FIG. 4, only the history route 606 to the kindergarten with the high travel frequency 405 may be determined. Similarly, when the vehicle deviates from the history route, only the guidance route 609 to the searched kindergarten may be displayed. For example, when a travel route is selected by the user, only the selected route may be displayed.

  In the explanatory diagram of FIG. 6, for example, the start time 402 may be searched for a range of 30 minutes before and after, but is not limited thereto. Specifically, for example, the start time 402 closest to the engine start time 402 of the vehicle in the travel history database 400 may be selected, and the corresponding destination point 404 may be determined. Further, for example, the closest starting time 402 after the starting time 402 of the engine in the vehicle in the travel history database 400 may be selected and the corresponding destination point 404 may be determined.

  As described above, according to the navigation device 300 of the present embodiment, the recording unit 101 records the movement history in which the moving date is associated with the information related to the route the moving body has moved to the destination point. Then, based on the current date and time acquired by the date and time acquisition unit 103 and the position information of the current location acquired by the location acquisition unit 104 and the movement history, the determination unit 105 determines the history route to the destination point and the destination point. When the route is determined and deviated from the history route, a search route to the destination point can be searched for by the search unit 107 and displayed on the display unit 108. Therefore, by using the movement history, if the current date and time and the location information of the current location are acquired, the destination location and the history route are determined. Further, if the mobile body deviates from the history route, the guidance route to the destination location is determined. You can search automatically. This allows the user to automatically search for the guidance route and display the guidance route to the destination when he / she is unable to follow the route he / she normally travels due to, for example, construction or an accident. There is no hassle of performing an operation for starting route guidance, and it is possible to concentrate on driving.

  Further, according to the navigation device 300 of the present embodiment, the determination unit 105 is based on the current date and time and the current location information when the moving body starts moving, and the movement history recorded in the recording unit 101. The destination point can be determined. Therefore, for example, the route guidance can be started from the start of movement by the moving body. As a result, the user can automatically start route guidance when the vehicle starts traveling, for example, so that the user can automatically search for the guidance route even if the user immediately deviates from the route immediately after the start of traveling. Thus, since the guidance route to the destination point can be displayed, there is no trouble of performing an operation for starting the route guidance during driving, and it is possible to concentrate on driving.

  Further, according to the navigation device 300 of the present embodiment, the date and time acquisition unit 103 can acquire the day of the week together with the current date and time. Therefore, since the movement history can be managed in units of days of the week, it is possible to grasp the tendency regarding the movement of the user. As a result, even if the user does not set a destination point, such as a route that travels regularly, if the user goes out of the history route to the destination point, he / she automatically searches for the guidance route and guides to the destination point. Since the route can be displayed, there is no inconvenience of performing an operation for starting route guidance during driving, and it is possible to concentrate on driving.

  Further, according to the navigation device 300 of the present embodiment, when a plurality of destination points are determined by the determination unit 105, the selection unit 106 selects one destination point based on the movement frequency included in the movement history, The search unit 107 can search for a guidance route to the selected one destination point. Therefore, for example, even if a plurality of destination points are determined from the movement history, the route with the highest movement frequency can be selected. As a result, when a plurality of destination points are determined and the user deviates from the history route to these destination points, the user can select a guide route to the destination point that is often preferentially approached without selecting one route. Can be displayed.

  Moreover, according to the navigation apparatus 300 of a present Example, when the detection part 102 detects the starting state of the power supply of a moving body, a destination point can be determined. Therefore, for example, the destination point can be determined when the engine is started before the moving body starts moving. This allows the user to display the guidance route without performing the operation for starting the route guidance when the user cannot travel on the history route when the vehicle starts to travel. Can be confirmed.

  As described above, according to the route guidance device, route guidance method, route guidance program, and recording medium of the present invention, the navigation device 300 acquires the day of the week 401, the engine start time 402, and the departure point 403, Based on the travel history database 400 recorded on the magnetic disk 305 and the optical disk 307, the candidate destination point 404 and the history route to the destination point 404 can be determined. When the vehicle deviates from the history route, a guidance route to the destination point 404 can be automatically searched. Thus, for example, even if the user does not set the destination point 404, the user automatically searches for a guidance route to the destination point 404 and displays it on the display 313 when the route is periodically deviated. Can be made. Therefore, there is no trouble of performing a complicated setting operation for starting route guidance during driving, and it is possible to concentrate on driving.

  The route guidance 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.

  The present invention relates to a route guidance device, a route guidance method, a route guidance program, and a recording medium that determine a destination point based on a movement history of a moving body. However, the use of the present invention is not limited to the above-described route guidance device, route guidance method, route guidance program, and recording medium.

  Conventionally, when a destination point is set by the user through the input unit and guidance to the destination point is started, the control unit stores the destination point location information in the storage unit at a preset timing. The location information of the destination point is stored in the history table. The stored position information is displayed on the display unit when the user sets the destination point, and a navigation device is proposed in which the user selects from the displayed position information and sets the destination point ( For example, see the following Patent Document 1.)

JP 2006-153728 A

  However, in the technique of the above-mentioned patent document 1, since the destination point useful for the user is stored, it is not complicated when setting the destination point. An example is the problem of having to set a destination point during driving if the vehicle is not set and is off the route. Another example is a problem that the user cannot concentrate on driving by setting the destination point during driving.

  In order to solve the above-described problems and achieve the object, the route guidance device according to the invention of claim 1 records the movement history in which the moving date is associated with the information on the history route that the moving body has moved to the destination point. Recording means; date and time acquisition means for acquiring current date and time; position acquisition means for acquiring position information of the current location of the mobile; the acquired current date and time and location information of the acquired current location; Based on the recorded movement history, a determining means for determining a destination point candidate to be moved by the mobile body, a display means for displaying the determined position of the destination point candidate on a map, and the purpose In the case where a plurality of point candidates are determined, the plurality of destination point candidates are displayed, and the acquired current point corresponds to one of the plurality of destination point candidates. Control means for controlling the display means so as to erase the display of the one destination point candidate when it is off the history path and is on the history path for the other destination point candidates. And

  According to a ninth aspect of the present invention, there is provided a route guidance apparatus for recording a movement history in which a moving body is associated with information on a history route on which a moving body has moved to a destination, and a date acquisition for acquiring a current date and time. Means, position acquisition means for acquiring position information of the current location of the mobile body, the acquired current date and time, position information of the acquired current location, and the movement history recorded in the recording means, And a determination means for determining a destination point and a history route for the destination point, and the acquired current date and time when the acquired current point is out of the history route for the determined destination point, and Display means for displaying a plurality of other destination point candidates different from the destination point based on the acquired location information of the current point and the recorded movement history; And a selection unit that selects one of the plurality of displayed destination point candidates, and a search unit that searches for a guidance route using the selected one of the destination point candidates as a destination point. .

  According to a tenth aspect of the present invention, there is provided a route guidance apparatus for recording a movement history in which a moving history is associated with information on a history route on which a moving body has moved to a destination, and a date acquisition for acquiring a current date and time. Means, position acquisition means for acquiring position information of the current location of the mobile body, the acquired current date and time, position information of the acquired current location, and the movement history recorded in the recording means, And determining means for determining a destination point and a history route for the destination point, and searching means for searching for a guidance route to the destination point, wherein the determining means includes the acquired current point, Based on the acquired current date and time, the position information of the acquired current point, and the recorded movement history when the route is deviated from the history route for the determined destination point. There was determined the different other destination point and the destination point and the search means is characterized by searching for a guide route to another destination point the determined.

  According to the eleventh aspect of the present invention, there is provided a route guidance method for recording a movement history in which information relating to a history route on which a mobile body has moved to a destination is associated with the date and time of movement, and date and time acquisition for acquiring the current date and time. Based on the step, the position acquisition step of acquiring the position information of the current location of the mobile body, the acquired current date and time, the location information of the acquired current location, and the recorded movement history, When a determination step for determining a destination point candidate to be moved by the mobile body, a display step for displaying the determined position of the destination point candidate on a map, and a plurality of the destination point candidates are determined, The plurality of destination point candidates are displayed, and the acquired current point is out of the history route for one of the plurality of destination point candidates, and the other destination points. When in the history path to complement, like to erase the display of the destination point candidates the one, characterized in that it comprises a and a controlling process of controlling the display step.

  According to a twelfth aspect of the present invention, there is provided a route guidance method for recording a movement history in which information relating to a history route on which a mobile object has moved to a destination is associated with the date and time of movement, and obtaining a date and time for acquiring the current date and time. A step, a position acquisition step of acquiring position information of the current location of the mobile body, the acquired current date and time and the location information of the acquired current location, and the movement history recorded in the recording step, And determining a destination point and a history route for the destination point, and if the acquired current point is out of the history route for the determined destination point, the acquired current date and time and A display step of displaying a plurality of other destination point candidates different from the destination point based on the acquired position information of the current point and the recorded movement history A selection step of selecting one of the displayed plurality of destination point candidates, and a search step of searching for a guidance route using the selected one of the destination point candidates as a destination point, To do.

  According to a thirteenth aspect of the present invention, there is provided a route guidance method for recording a movement history in which information relating to a history route on which a mobile body has traveled to a destination point is associated with the date and time of movement, and date and time acquisition for acquiring the current date and time. A step, a position acquisition step of acquiring position information of the current location of the mobile body, the acquired current date and time and the location information of the acquired current location, and the movement history recorded in the recording step, A determination step for determining a destination point and a history route for the destination point, and a search step for searching for a guidance route to the destination point, wherein the determination step includes the acquisition of the current point Based on the acquired current date and time, the position information of the acquired current point, and the recorded movement history when the route is deviated from the history route for the determined destination point. There was determined the different other destination point and the destination point and the search process is characterized in that searching for a guide route to another destination point the determined.

  A route guidance program according to the invention of claim 14 causes a computer to execute the route guidance method according to claims 11 to 13.

  A recording medium according to a fifteenth aspect of the invention is characterized in that the route guidance program according to the fourteenth aspect is recorded in a computer-readable state.

It is a block diagram which shows the functional structure of the route guidance apparatus concerning embodiment. It is a flowchart which shows the route guidance process sequence of a route guidance apparatus. It is a block diagram which shows the hardware constitutions of the navigation apparatus concerning a present Example. It is explanatory drawing shown about the example of the content of the driving history database. It is a flowchart which shows the content of the process of a navigation apparatus. It is explanatory drawing shown about the detailed example of the route guidance process shown in FIG.

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

(Embodiment)
(Functional configuration of the route guidance device)
First, the functional configuration of the route guidance device 100 according to the embodiment of the present invention will be described. FIG. 1 is a block diagram of a functional configuration of the route guidance device according to the embodiment.

  In FIG. 1, a route guidance device 100 includes a recording unit 101, a detection unit 102, a date acquisition unit 103, a position acquisition unit 104, a determination unit 105, a selection unit 106, a search unit 107, and a display unit 108. And. The recording unit 101 records a movement history in which the date and time of movement is associated with information related to the history route that the moving body has moved to the destination point. The movement history may be associated with a movement frequency representing the number of times the moving body has moved to each destination point. Specifically, when the moving body is a vehicle, this is a database that records a driving history including a day of the week, an engine start time, a departure point, a destination point, a driving frequency, and route information. The recording unit 101 may record map data. Here, the map data includes road network data composed of nodes and links, and image data drawn using features relating to facilities, roads, and other terrain (mountains, rivers, land). The map data may include text information, information such as facility names and addresses, road and facility images, and the like.

  The detection part 102 detects the starting state of the power supply of a moving body. Specifically, for example, when the moving body is a vehicle, it is detected whether the engine of the vehicle is activated. For example, the detection unit 102 may detect whether or not the route guidance device 100 is activated. Then, when the detection unit 102 detects the activation state of the power source, route guidance is started. Specifically, for example, the processing of each component described later is started.

  The date acquisition unit 103 acquires the current date and time. Acquisition of the current date and time is acquired by, for example, a timer provided in the moving body. The date acquisition unit 103 may acquire the day of the week together with the current date. Specifically, for example, the day of the week is acquired based on the calendar information recorded in the recording unit 101 and the current date and time. Furthermore, the date and time acquisition unit 103 may acquire the activation time when the activation state is detected by the detection unit 102 and the start time when the moving body starts moving.

  The position acquisition unit 104 acquires position information on the current location of the moving object. The position information of the current location of the mobile object is acquired by, for example, a GPS unit or an acceleration sensor provided in the vehicle. Further, the position acquisition unit 104 may acquire position information of a starting point where the moving body starts moving or a point where the moving body stops moving.

  Based on the current date and time acquired by the date and time acquisition unit 103 and the current location information acquired by the position acquisition unit 104 and the movement history recorded in the recording unit 101, the determination unit 105 Determine the historical route to the point. Moreover, the determination part 105 may determine the guidance route to the destination point. Furthermore, the determination unit 105 may determine a plurality of destination points and history routes to the destination points. For example, the destination point and the history route to the destination point may be determined by providing a predetermined width for the time acquired by the date and time acquisition unit 103. Specifically, the destination point may be determined with a width of about 30 minutes before or after the start time or start time acquired by the date acquisition unit 103.

  In addition, the determination unit 105 determines the history route to the destination point and the destination point based on the current date and time and the current location information when the mobile body starts moving, and the movement history recorded in the recording unit 101. To decide. Specifically, for example, the history route from the travel history to the destination point and the destination point is determined based on the startup time of the mobile object or the startup time of the route guidance device 100 and the position information of the departure point.

  When the determination unit 105 determines a plurality of destination points and history routes to the destination points, the selection unit 106 selects one destination point based on the movement frequency included in the movement history. The movement frequency is, for example, information on how many times the moving body has moved on the same route of the day of the week, the start time, the departure point, and the destination point. For example, the selection unit 106 selects a destination point having the highest movement frequency.

  When the current location acquired by the position acquisition unit 104 deviates from the history route to the destination point determined by the determination unit 105, the search unit 107 searches for a guidance route to the destination point. In addition, when the determination unit 105 determines a plurality of destination points, the search unit 107 searches for a guidance route to the one destination point selected by the selection unit 106. In addition, when the determination unit 105 determines a plurality of destination points and history routes to the destination points, the search unit 107 may search for guidance routes for the plurality of destination points.

  The display unit 108 displays the guidance route searched by the search unit 108. Further, the display unit 108 may display a history route to the destination point determined by the determination unit 105, for example. Further, the display unit 108 may display a plurality of history routes and / or guidances when a plurality of destination points and history routes to the destination points are determined by the determination unit 105, or when a plurality of guidance routes are searched by the search unit 107. A route may be displayed. Moreover, you may output audio | voice information simultaneously with a display.

(Route guidance processing procedure of the route guidance device)
Next, a route guidance processing procedure of the route guidance device 100 will be described. FIG. 2 is a flowchart showing a route guidance processing procedure of the route guidance device. In the flowchart of FIG. 2, first, the movement history in which the date and time of movement is associated with the information related to the route that the moving body has moved to the destination point is recorded in the recording unit 101 (step S201). Specifically, for example, each time a moving body moves, a departure point, a destination point, a start time, a movement frequency, and the like are recorded as a movement history.

  Then, based on the detection result by the detection unit 102, the mobile unit waits until the power source of the moving body is activated (step S202: No loop). When the power source of the mobile unit is activated (step S202: Yes), the date acquisition unit 103 The date and time are acquired (step S203). In step S203, the date and time acquisition unit 103 may acquire a start time when the moving body starts moving. Together with step S203, the position acquisition unit 104 acquires position information of the current location (step S204). In step S204, the position acquisition unit 104 may acquire position information of a departure point where the mobile object has started moving. Then, based on the current date and time acquired in step S203, the position information of the current location acquired in step S204, and the movement history recorded in step S201, the determination unit 105 determines the destination location (step S205). In step S205, a history route to the determined destination point may be determined.

  Next, it waits until the position information of the current location acquired in step S204 deviates from the history route to the destination point determined in step S205 (step S206: No loop). In step S206: Yes), the search unit 107 searches for a guidance route to the destination point (step S207). Next, it is determined whether or not there are a plurality of destination points searched for guidance routes in step S207 (step S208). If there is only one destination point in step S208 (step S208: No), the guidance route to the destination point searched in step S207 is displayed (step S210), and the series of processes is terminated.

  On the other hand, when there are a plurality of destination points in Step S208 (Step S208: Yes), the selection unit 106 selects one destination point based on the movement frequency included in the movement history (Step S209). In step S209, for example, a plurality of guidance routes searched in step S207 may be displayed to accept a selection instruction from the user. And it progresses to step S210, the guidance path | route to the one destination point selected in step S209 is displayed, and a series of processes are complete | finished.

  In the flowchart of FIG. 2, if there are a plurality of destination points in step S208: Yes, the process proceeds to step S209 to select one destination point, but the present invention is not limited to this. Specifically, for example, the process may directly proceed to step S210 to display guidance routes to a plurality of destination points.

  As described above, according to the route guidance device 100 of the present embodiment, the recording unit 101 records the movement history in which the moving date is associated with the information about the route that the moving body has moved to the destination point. Then, based on the current date and time acquired by the date and time acquisition unit 103 and the position information of the current location acquired by the location acquisition unit 104 and the movement history, the determination unit 105 determines the history route to the destination point and the destination point. When the route is determined and deviated from the history route, a search route to the destination point can be searched for by the search unit 107 and displayed on the display unit 108. Therefore, by using the movement history, if the current date and time and the location information of the current location are acquired, the destination location and the history route are determined. Further, if the mobile body deviates from the history route, the guidance route to the destination location is determined. You can search automatically. This allows the user to automatically search for the guidance route and display the guidance route to the destination when he / she is unable to follow the route he / she normally travels due to, for example, construction or an accident. There is no hassle of performing an operation for starting route guidance, and it is possible to concentrate on driving.

  Further, according to the route guidance device 100 of the present embodiment, the determination unit 105 is based on the current date and time position information when the moving body starts moving and the position information of the current location and the movement history recorded in the recording unit 101. The destination point can be determined. Therefore, for example, the route guidance can be started from the start of movement by the moving body. As a result, the user can automatically start route guidance when the vehicle starts traveling, for example, so that the user can automatically search for the guidance route even if the user immediately deviates from the route immediately after the start of traveling. Thus, since the guidance route to the destination point can be displayed, there is no trouble of performing an operation for starting the route guidance during driving, and it is possible to concentrate on driving.

  Moreover, according to the route guidance device 100 of the present embodiment, the date and time acquisition unit 103 can acquire the day of the week together with the current date and time. Therefore, since the movement history can be managed in units of days of the week, it is possible to grasp the tendency regarding the movement of the user. As a result, even if the user does not set a destination point, such as a route that travels regularly, if the user goes out of the history route to the destination point, he / she automatically searches for the guidance route and guides to the destination point. Since the route can be displayed, there is no inconvenience of performing an operation for starting route guidance during driving, and it is possible to concentrate on driving.

  Further, according to the route guidance device 100 of the present embodiment, when a plurality of destination points are determined by the determination unit 105, the selection unit 106 selects one destination point based on the movement frequency included in the movement history. The search unit 107 can search for a guidance route to the selected destination point. Therefore, for example, even if a plurality of destination points are determined from the movement history, the route with the highest movement frequency can be selected. As a result, when a plurality of destination points are determined and the user deviates from the history route to these destination points, the user can select a guide route to the destination point that is often preferentially approached without selecting one route. Can be displayed.

  Moreover, according to the route guidance device 100 of the present embodiment, when the detection unit 102 detects the activation state of the power source of the moving body, the destination point can be determined. Therefore, for example, the destination point can be determined when the engine is started before the moving body starts moving. This allows the user to display the guidance route without performing the operation for starting the route guidance when the user cannot travel on the history route when the vehicle starts to travel. Can be confirmed.

  Examples of the present invention will be described below. In the present embodiment, an example in which the route guidance device of the present invention is implemented by a navigation device mounted on a moving body such as a vehicle (including a four-wheeled vehicle and a two-wheeled vehicle) will be described.

(Hardware configuration of navigation device)
Next, a hardware configuration of the navigation device 300 according to the present embodiment will be described. FIG. 3 is a block diagram of a hardware configuration of the navigation device according to the present embodiment. In FIG. 3, the navigation device 300 includes a CPU 301, a ROM 302, a RAM 303, a magnetic disk drive 304, a magnetic disk 305, an optical disk drive 306, an optical disk 307, an audio I / F (interface) 308, and a microphone 309. A speaker 310, an input device 311, a video I / F 312, a display 313, a communication I / F 314, a GPS unit 315, various sensors 316, and a camera 317. Each component 301 to 317 is connected by a bus 320.

  First, the CPU 301 governs overall control of the navigation device 300. The ROM 302 records programs such as a boot program and a data update program. The RAM 303 is used as a work area for the CPU 301. That is, the CPU 301 controls the entire navigation device 300 by executing various programs recorded in the ROM 302 while using the RAM 303 as a work area.

  The magnetic disk drive 304 controls the reading / writing of the data with respect to the magnetic disk 305 according to control of CPU301. The magnetic disk 305 records data written under the control of the magnetic disk drive 304. As the magnetic disk 305, for example, an HD (hard disk) or an FD (flexible disk) can be used.

  The optical disk drive 306 controls reading / writing of data with respect to the optical disk 307 according to the control of the CPU 301. The optical disk 307 is a detachable recording medium from which data is read according to the control of the optical disk drive 306. As the optical disc 307, a writable recording medium can be used. As a removable recording medium, in addition to the optical disk 307, an MO, a memory card, or the like may be used.

  An example of information recorded on the magnetic disk 305 and the optical disk 307 is a travel history database. The travel history database, which will be described in detail with reference to FIG. 4, is a travel history in which the date and time of movement is associated with information related to the route that the moving body has moved to the destination point. Specifically, for example, a history of a day on which a route is traveled, an engine start time, a departure point, a destination point, a travel frequency, route information, and the like. The traveling history may be constantly updated during traveling.

  Other examples of information recorded on the magnetic disk 305 and the optical disk 307 include map data and function data. The map data includes background data that represents features (features) such as buildings, rivers, and the ground surface, and road shape data that represents the shape of the road, and is composed of multiple data files divided by district. Has been.

  The road shape data further includes traffic condition data. The traffic condition data includes, for example, whether or not there is a signal or a pedestrian crossing, whether or not there is a highway doorway or junction, the length (distance) of each link, road width, direction of travel, road type (highway, Such as toll roads and general roads).

  The function data is three-dimensional data representing the shape of the facility on the map, character data representing the description of the facility, and other various data other than the map data. Map data and function data are recorded in blocks divided by district or function. Specifically, for example, the map data is recorded in a state where each block can be divided into blocks so that each map represents a predetermined district on the map displayed on the display screen. Further, for example, the function data is recorded in a state where each function can be divided into a plurality of blocks so as to realize one function.

  The function data is data for realizing functions such as program data for realizing route search, calculation of required time, route guidance, etc. in addition to the above-described three-dimensional data and character data. Each of the map data and the function data is composed of a plurality of data files divided for each district or each function.

  The audio I / F 308 is connected to a microphone 309 for audio input and a speaker 310 for audio output. The sound received by the microphone 309 is A / D converted in the sound I / F 308. For example, the microphone 309 may be installed near the sun visor of the vehicle, and the number thereof may be one or more. From the speaker 310, a sound obtained by D / A converting a predetermined sound signal in the sound I / F 308 is output. Note that the sound input from the microphone 309 can be recorded on the magnetic disk 305 or the optical disk 307 as sound data.

  Examples of the input device 311 include a remote controller having a plurality of keys for inputting characters, numerical values, various instructions, and the like, a keyboard, and a touch panel. The input device 311 may be realized by any one form of a remote control, a keyboard, and a touch panel, but may be realized by a plurality of forms.

  The video I / F 312 is connected to the display 313. Specifically, the video I / F 312 is output from, for example, a graphic controller that controls the entire display 313, a buffer memory such as a VRAM (Video RAM) that temporarily records image information that can be displayed immediately, and a graphic controller. And a control IC for controlling the display 313 based on the image data to be processed.

  The display 313 displays icons, cursors, menus, windows, or various data such as characters and images. On the display 313, the map data described above is drawn two-dimensionally or three-dimensionally. The map data displayed on the display 313 can be displayed with a mark representing the current position of the vehicle on which the navigation device 300 is mounted. The current position of the vehicle is calculated by the CPU 301.

  As the display 313, for example, a CRT, a TFT liquid crystal display, a plasma display, or the like can be used. The display 313 is installed near the dashboard of the vehicle, for example. A plurality of displays 313 may be installed in the vehicle, for example, in the vicinity of the dashboard of the vehicle or in the vicinity of the rear seat of the vehicle.

  The communication I / F 314 is connected to a network via wireless and functions as an interface between the navigation device 300 and the CPU 301. The communication I / F 314 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 301.

  Communication networks include LANs, WANs, public line networks and mobile phone networks. Specifically, the communication I / F 314 includes, for example, an FM tuner, a VICS (Vehicle Information and Communication System) / beacon receiver, a radio navigation device, and other navigation devices. Obtain road traffic information such as regulations. VICS is a registered trademark.

  The GPS unit 315 receives radio waves from GPS satellites and outputs information indicating the current position of the vehicle. The output information of the GPS unit 315 is used when the CPU 301 calculates the current position of the vehicle together with output values of various sensors 316 described later. The information indicating the current position is information for specifying one point on the map data, such as latitude / longitude and altitude.

  The various sensors 316 output information for determining the position and behavior of the vehicle, such as a vehicle speed sensor, an acceleration sensor, and an angular velocity sensor. The output values of the various sensors 316 are used for the calculation of the current position of the vehicle by the CPU 301 and the amount of change in speed and direction. Further, the various sensors 316 may output information for determining the engine start state, such as a voltage device. Further, the various sensors 316 may output information on the current time and information on the day of the week using a timer or the like.

  The camera 317 captures images inside or outside the vehicle. The image may be either a still image or a moving image. For example, the behavior of the passenger inside the vehicle is photographed by the camera 317, and the photographed image is output to a recording medium such as the magnetic disk 305 or the optical disk 307 via the video I / F 312. To do. The camera 317 captures a situation outside the vehicle, and outputs the captured video to a recording medium such as the magnetic disk 305 or the optical disk 307 via the video I / F 312. Further, the camera 317 has an infrared camera function, and the surface temperature distributions of objects existing inside the vehicle can be relatively compared based on video information captured using the infrared camera function. The video output to the recording medium is overwritten and stored.

  The recording unit 101, the detection unit 102, the date and time acquisition unit 103, the position acquisition unit 104, the determination unit 105, the selection unit 106, the search unit 107, and the display unit 108 included in the route guidance device 100 illustrated in FIG. 1 are illustrated in FIG. Using the programs and data recorded in the ROM 302, the RAM 303, the magnetic disk 305, the optical disk 307, etc. in the navigation device 300, the CPU 301 executes a predetermined program and controls each part in the navigation device 300 to realize its function. To do.

  That is, the navigation apparatus 300 according to the embodiment has the functions provided in the route guidance device shown in FIG. 1 by executing the route guidance program recorded in the ROM 302 as a recording medium in the navigation device 300, as shown in FIG. Can be executed by the route guidance processing procedure.

(An example of the contents of the travel history database)
Next, an example of the contents of the travel history database will be described with reference to FIG. FIG. 4 is an explanatory diagram showing an example of the contents of the travel history database. In FIG. 4, the travel history database 400 includes a day of the week 401, a start time 402, a departure point 403, a destination point 404, a travel frequency 405, and route information 406.

  The day of the week 401 is the day of the week when the engine of the vehicle is activated, and the activation time 402 is the time when the engine of the vehicle is activated. Further, the departure point 403 is position information of a point where the vehicle engine is started, and the destination point 404 is position information of a point where the vehicle engine is stopped. Therefore, a destination point candidate can be selected depending on what day of the week and at which departure point. Furthermore, the traveling frequency 405 is information on how many times the vehicle has traveled on the same route of the day of the week 401, the start time 402, the departure point 403, and the destination point 404. The route information 406 is information regarding each route, for example, information on a history route that has traveled in the past. The route information 406 may be information on a plurality of history routes in which the departure point 403 and the destination point 404 are the same.

  In FIG. 4, specifically, for example, it can be confirmed that the number of times of starting the engine at 8:30 on Monday and traveling to the company from home is 5 times. For example, when the engine is started at 8:00 on Monday, it can be confirmed that the number of times of traveling to kindergarten is 10 times. Therefore, for example, when the engine is started at 8 o'clock on Monday, it is expected to go to kindergarten. Thereby, the navigation apparatus 300 can confirm the history route from the home to the kindergarten without any operation by the user.

(Contents of processing of navigation device 300)
Next, the processing contents of the navigation device 300 will be described. FIG. 5 is a flowchart showing the contents of processing of the navigation device. In the flowchart of FIG. 5, first, waiting until the vehicle engine is started (step S501: No), and when the engine is started (step S501: Yes), the engine is started in step S501 by timers provided for various sensors. The starting time 402 and the day of the week 401 are acquired (step S502). In step S501, whether or not the engine has been started is determined from, for example, outputs from voltage devices included in various sensors 316. In step S502, the start time 402 and the day of the week 401 when the engine is started are acquired. However, the present invention is not limited to this. Specifically, for example, it may be determined whether or not the vehicle has started traveling by the output of an acceleration sensor or the like included in the various sensors 316, and the time when the vehicle has started traveling may be acquired.

  In addition to the step S502, the point where the engine is started (the departure point 403) is acquired by the GPS unit 315 (step S503). A candidate destination point 404 is determined based on the start time 402 and day of week 401 acquired in step S502, the departure point 403 acquired in step S503, and the travel history database 400 described in FIG. Step S504). In step S504, the history route to the destination point may be determined together with the determined destination point.

  Next, the current location of the vehicle is acquired, and it is determined whether or not the vehicle has deviated from the history route to the candidate destination location 404 determined in step S504 (step S505). When it deviates from the history route in step S505 (step S505: Yes), the guidance route to the destination point determined in step S504 is searched (step S506). Further, it is determined whether or not there are a plurality of destination points determined in step S504 (step S507). If it is determined in step S505 that there is one candidate destination point 404 (step S507: No), the guidance route searched in step S508 is displayed (step S508).

  And it is judged whether the engine of the vehicle stopped by the output of the voltage device with which various sensors 316 are provided, etc. (Step S509). In step S509, whether or not the vehicle has stopped traveling may be determined by an acceleration sensor provided in the various sensors 316 or the like. If it is determined in step S509 that the engine of the vehicle has been stopped (step S509: Yes), the current location of the place where it is determined that the engine has been stopped in step S509 is acquired (step S510).

  It is determined whether or not the current location acquired in step S510 is the destination location 404 recorded in the travel history database 400 (step S511). When it is determined that the destination point 404 is determined in step S511 (step S511: Yes), the travel frequency 405 in the travel history database 400 is increased by 1 (step S512), and the series of processes is terminated.

  On the other hand, when it is determined that there are a plurality of candidate destination points 404 in step S507 (step S507: Yes), the plurality of destination points 404 determined in step S507 are searched for on the display 313 in step S506, respectively. Is displayed (step S513). Then, it is determined whether one destination point has been selected within a predetermined time from each guidance route displayed in step S513 (step S514). If it is determined in step S514 that one destination point has been selected (step S514: Yes), the process returns to step S508, the guidance route of the one destination point selected in step S514 is displayed, and the subsequent processing is repeated. Do it.

  If it is determined in step S514 that one destination point is not selected (step S514: No), a destination point with a high travel frequency 405 is selected in the travel history database 400 (step S515), and the process proceeds to step S508. The guidance route to the destination point with the high travel frequency 405 selected in step S515 is displayed, and the subsequent processing is repeated.

  Furthermore, when it is determined in step S505 that the route is not deviated (step S505: No), the process proceeds to step S509, and the subsequent processing is repeated. If it is determined in step S509 that the vehicle engine is not stopped (step S509: No), if it is determined in step S511 that it is not the destination point 404 (step S511: No), the process returns to step S505. The subsequent processing is repeated.

  In the flowchart of FIG. 5, it is determined whether one destination point has been selected in step S514, but the present invention is not limited to this. Specifically, for example, the destination points may not be selected, and the routes other than the route corresponding to the route on which the vehicle is traveling may not be displayed in order while the guidance route to each destination point is displayed. In other words, when the route to each destination point 404 overlaps, the destination point 404 where the route overlaps may be left displayed.

(Detailed example of route guidance processing)
Next, a detailed example of the route guidance process shown in FIG. 5 will be described. FIG. 6 is an explanatory diagram showing a detailed example of the route guidance process shown in FIG. In FIG. 6, the home 601, the company 602, the kindergarten 603, the supermarket 604, the history route 605 to the company, the history route 606 to the kindergarten, the current location 607 of the vehicle, and the searched company A guidance route 608 and a guidance route 609 to the searched kindergarten are displayed. These are displayed on the display 313, for example.

  In FIG. 6, it is assumed that the vehicle is started at home 601 at 8:10 on Monday. Therefore, in the travel history database 400 of FIG. 4, the day 401 is the month, the activation time 402 is close to 8:10, and the departure point 403 determines the destination point 404 corresponding to the home 601. Further, a history route to the destination point 404 is determined from the route information 406 corresponding to the determined destination point 404. Here, for the activation time 402, for example, a range of 30 minutes before and after may be searched. Specifically, for example, when the activation time 402 is 8:10, the destination point 404 corresponding to the time from 7:40 to 8:40 may be determined. Based on these, two destination points 404 of the company 602 and the kindergarten 603 are determined. Therefore, in FIG. 6, the history route 605 to the company and the history route 606 to the kindergarten are displayed. Further, for example, the route may not be displayed until the vehicle deviates from all the determined history routes. Specifically, for example, since the user is familiar with a route that is traveling regularly, the route need not be displayed.

  Further, a case where the vehicle deviates from the history route will be described. Here, the determination as to whether or not the history route has been exceeded is, specifically, to the history route 605 to the company determined when the vehicle's current location 607 has started the engine at the home 601 and to the kindergarten. The determination may be made based on whether or not the two history paths 606 are out of the two history paths. In FIG. 6, the current location 607 of the vehicle deviates from two history routes, a history route 605 to the company and a history route 606 to the kindergarten. Therefore, the navigation apparatus 300 searches for the guidance route, and displays the guidance route 608 to the searched company and the guidance route 609 to the searched kindergarten. Specifically, for example, when the current location 607 of the vehicle deviates from all the determined history routes, the guidance route display may be started.

  In the explanatory diagram of FIG. 6, the history route 605 to the company and the history route 606 to the kindergarten are determined, but the present invention is not limited to this. Specifically, for example, based on the travel frequency 405 of the travel history database 400 of FIG. 4, only the history route 606 to the kindergarten with the high travel frequency 405 may be determined. Similarly, when the vehicle deviates from the history route, only the guidance route 609 to the searched kindergarten may be displayed. For example, when a travel route is selected by the user, only the selected route may be displayed.

  In the explanatory diagram of FIG. 6, for example, the start time 402 may be searched for a range of 30 minutes before and after, but is not limited thereto. Specifically, for example, the start time 402 closest to the engine start time 402 of the vehicle in the travel history database 400 may be selected, and the corresponding destination point 404 may be determined. Further, for example, the closest starting time 402 after the starting time 402 of the engine in the vehicle in the travel history database 400 may be selected and the corresponding destination point 404 may be determined.

  As described above, according to the navigation device 300 of the present embodiment, the recording unit 101 records the movement history in which the moving date is associated with the information related to the route the moving body has moved to the destination point. Then, based on the current date and time acquired by the date and time acquisition unit 103 and the position information of the current location acquired by the location acquisition unit 104 and the movement history, the determination unit 105 determines the history route to the destination point and the destination point. When the route is determined and deviated from the history route, a search route to the destination point can be searched for by the search unit 107 and displayed on the display unit 108. Therefore, by using the movement history, if the current date and time and the location information of the current location are acquired, the destination location and the history route are determined. Further, if the mobile body deviates from the history route, the guidance route to the destination location is determined. You can search automatically. This allows the user to automatically search for the guidance route and display the guidance route to the destination when he / she is unable to follow the route he / she normally travels due to, for example, construction or an accident. There is no hassle of performing an operation for starting route guidance, and it is possible to concentrate on driving.

  Further, according to the navigation device 300 of the present embodiment, the determination unit 105 is based on the current date and time and the current location information when the moving body starts moving, and the movement history recorded in the recording unit 101. The destination point can be determined. Therefore, for example, the route guidance can be started from the start of movement by the moving body. As a result, the user can automatically start route guidance when the vehicle starts traveling, for example, so that the user can automatically search for the guidance route even if the user immediately deviates from the route immediately after the start of traveling. Thus, since the guidance route to the destination point can be displayed, there is no trouble of performing an operation for starting the route guidance during driving, and it is possible to concentrate on driving.

  Further, according to the navigation device 300 of the present embodiment, the date and time acquisition unit 103 can acquire the day of the week together with the current date and time. Therefore, since the movement history can be managed in units of days of the week, it is possible to grasp the tendency regarding the movement of the user. As a result, even if the user does not set a destination point, such as a route that travels regularly, if the user goes out of the history route to the destination point, he / she automatically searches for the guidance route and guides to the destination point. Since the route can be displayed, there is no inconvenience of performing an operation for starting route guidance during driving, and it is possible to concentrate on driving.

  Further, according to the navigation device 300 of the present embodiment, when a plurality of destination points are determined by the determination unit 105, the selection unit 106 selects one destination point based on the movement frequency included in the movement history, The search unit 107 can search for a guidance route to the selected one destination point. Therefore, for example, even if a plurality of destination points are determined from the movement history, the route with the highest movement frequency can be selected. As a result, when a plurality of destination points are determined and the user deviates from the history route to these destination points, the user can select a guide route to the destination point that is often preferentially approached without selecting one route. Can be displayed.

  Moreover, according to the navigation apparatus 300 of a present Example, when the detection part 102 detects the starting state of the power supply of a moving body, a destination point can be determined. Therefore, for example, the destination point can be determined when the engine is started before the moving body starts moving. This allows the user to display the guidance route without performing the operation for starting the route guidance when the user cannot travel on the history route when the vehicle starts to travel. Can be confirmed.

  As described above, according to the route guidance device, route guidance method, route guidance program, and recording medium of the present invention, the navigation device 300 acquires the day of the week 401, the engine start time 402, and the departure point 403, Based on the travel history database 400 recorded on the magnetic disk 305 and the optical disk 307, the candidate destination point 404 and the history route to the destination point 404 can be determined. When the vehicle deviates from the history route, a guidance route to the destination point 404 can be automatically searched. Thus, for example, even if the user does not set the destination point 404, the user automatically searches for a guidance route to the destination point 404 and displays it on the display 313 when the route is periodically deviated. Can be made. Therefore, there is no trouble of performing a complicated setting operation for starting route guidance during driving, and it is possible to concentrate on driving.

  The route guidance 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.

DESCRIPTION OF SYMBOLS 100 Route guidance apparatus 101 Recording part 102 Detection part 103 Date acquisition part 104 Position acquisition part 105 Determination part 106 Selection part 107 Search part 108 Display part

Claims (8)

A recording means for recording a movement history in which the date and time of movement is associated with information related to a history route that the moving body has moved to the destination point;
A date and time acquisition means for acquiring the current date and time;
Position acquisition means for acquiring position information of the current location of the mobile body;
Based on the current date and time acquired by the date and time acquisition means and the position information of the current location acquired by the position acquisition means and the movement history recorded in the recording means, the destination point and the history up to the destination point A determination means for determining a route;
When the current location acquired by the location acquisition unit deviates from the history route to the destination point determined by the determination unit, a search unit that searches for a guidance route to the destination point;
Display means for displaying the guidance route searched by the search means;
A route guidance device comprising:   The determining means determines the destination point based on current date and time information when the mobile body starts moving and position information of the current point and the movement history recorded in the recording means. The route guidance device according to claim 1.   The route guidance device according to claim 1, wherein the date acquisition unit acquires a day of the week together with a current date. When a plurality of the destination points are determined by the determination unit, the selection unit includes a selection unit that selects one destination point based on a movement frequency included in the movement history,
2. The route guidance device according to claim 1, wherein the search means searches for a guidance route to the one destination point selected by the selection means. It has a detecting means for detecting the starting state of the power source of the moving body,
The route guidance device according to any one of claims 1 to 4, wherein the destination point is determined when an activation state of a power source is detected by the detection means. A step of recording in a recording means a movement history that associates the date and time of movement with information related to a history route that the moving body has moved to the destination point;
A date and time acquisition process for acquiring the current date and time;
A position acquisition step of acquiring position information of the current location of the mobile object;
Based on the current date and time acquired by the date and time acquisition step and the location information of the current location acquired by the location acquisition step and the movement history recorded in the recording means, the destination point and the history to the destination point A decision process for determining a route;
When the current location acquired by the location acquisition step deviates from the history route to the destination point determined by the determination step, a search step for searching for a guidance route to the destination point;
Displaying the guidance route searched by the searching step;
A route guidance method comprising:   A route guidance program for causing a computer to execute the route guidance method according to claim 6.   A computer-readable recording medium on which the route guidance program according to claim 7 is recorded.

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