JP2011022013A - Apparatus, method, and program for searching route and recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a route searching apparatus for reducing the number of re-searches of a guidance route. <P>SOLUTION: An obtaining part 106 obtains position information of the current position of a moving body. When a route determination part 107 has determined that the current position of the moving body lies outside a guidance route, a searching part 109 re-searches a new guidance route. Even when the route determination part 107 has determined that the current position of the moving body lies outside the guidance route, when a section determination part 108 has determined that the current position of the moving body lies within a prescribed section which a user has registered at a registration part 102, the searching part 109 does not re-search a new guidance route. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a route search device, a route search method, a route search program, and a recording medium that suppress re-search of a guidance route. However, the use of the present invention is not limited to the above-described route search device, route search method, route search program, and recording medium.

  Conventionally, along with a map data input device for reading map data from a storage medium provided in advance by a service provider, a vehicle travel route is recorded based on a signal output from the position detector, and the record is recorded as a road shape. A navigation apparatus including an additional map data storage unit has been proposed (for example, see Patent Document 1 below). For example, when the user notices a newly opened road, the navigation apparatus can immediately reflect the information and execute route guidance.

JP 2004-212253 A

  However, depending on the cost calculation method when searching for a guidance route by the navigation device, there is a possibility that the same difficult road is always designated. In addition, when driving on routes not registered on the map, or on routes that are familiar to the user, such as passing on a route that you want to prioritize over the guidance route provided by the navigation device, ignore the guidance of the navigation device and drive Even when trying to do so, there is a problem that the function of the reroute guidance works every time it deviates from the guidance route, and the user feels troublesome.

  In order to solve the above-described problems and achieve the object, a route search device according to the invention of claim 1 includes an acquisition unit that acquires position information of a current location of a mobile unit, and the mobile unit acquired by the acquisition unit. Route determination means for determining whether or not the current location of the current position has deviated from the guidance route, and search means for re-searching for the new guidance route when the route determination means determines that the current location has deviated from the guidance route. In the route search apparatus, the mobile device further comprises section determining means for determining whether or not the current location of the moving body acquired by the acquiring means is within a predetermined section, and the searching means is within the predetermined section by the section determining means. If it is determined that the route is determined to be, the route determination unit does not re-search for the new guide route even if it is determined that the route is deviated from the guide route.

  The route search method in the route search device according to the invention of claim 8 includes an acquisition step of acquiring position information of a current location of a mobile object, and the current location of the mobile object acquired by the acquisition step is a guidance route. A route determination step for determining whether or not the route has been deviated, a search step for re-searching for the new guide route when it is determined that the route determination step has deviated from the guide route, and the movement acquired by the acquisition step A section determining step for determining whether or not the current position of the body is within a predetermined section, and when the search step is determined to be within the predetermined section by the section determining step, the route determining step performs the guidance Even if it is determined that the route has deviated from the route, the new guidance route is not searched again.

  According to a ninth aspect of the invention, a route search program causes a computer to execute the route search method according to the eighth aspect.

  A recording medium according to a tenth aspect of the invention is characterized in that the route search program according to the ninth aspect is recorded in a computer-readable state.

It is a block diagram which shows the functional structure of the route search apparatus concerning this Embodiment. It is a flowchart which shows the process sequence of the route search process of the route search apparatus concerning this Embodiment. It is a block diagram which shows the hardware constitutions of the navigation apparatus concerning a present Example. It is a flowchart which shows the content of the guidance route search process of a navigation apparatus. It is a flowchart which shows the process sequence of the reroute suppression area registration process in a navigation apparatus. It is explanatory drawing shown about an example of the display content. It is explanatory drawing which shows the data structure of the information regarding the reroute suppression area recorded on a navigation apparatus.

  Exemplary embodiments of a route search device, a route search method, a route search 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 route search device)
First, a functional configuration of the route search apparatus 100 according to the embodiment of the present invention will be described. FIG. 1 is a block diagram showing a functional configuration of the route search apparatus according to the present embodiment.

  In FIG. 1, the route search apparatus 100 includes an output unit 101, a registration unit 102, a recording medium 103, a control unit 104, a selection unit 105, an acquisition unit 106, a route determination unit 107, and a section determination unit 108. And a search unit 109 and a reception unit 110.

  The output unit 101 includes a display screen that displays map information and a speaker that outputs audio information. Further, the output unit 101 may display the guidance route superimposed on the map information, or may output information on the guidance route from a speaker.

  The registration unit 102 receives registration of a predetermined section from the user. Here, the predetermined section is a section in which the user wants to suppress re-search for a new guidance route. Further, the registration unit 102 may accept registration of the first point and the second point as the scheduled passage point of the moving body, and may register the section from the first point to the second point as the predetermined section. In addition, when the registration unit 102 receives registration from the user while the mobile object is moving, the registration unit 102 registers the current location of the mobile object at that time as the first point and the second point each time registration is received. To the second point may be registered as a predetermined section. That is, the registration unit 102 may accept a predetermined section in advance, or may accept a point between registration points received from the user as the predetermined section when the moving body is moving.

  For example, map data is recorded on the recording medium 103. 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 map data may be associated with a predetermined section for which registration is accepted by the registration unit 102.

  The control unit 104 records the predetermined section received registration by the registration unit 102 in the recording medium 103 in association with the map data. In addition, when the map data is updated, the control unit 104 records position information of a predetermined section in association with the updated map data. That is, even if the map data is updated, the position information of the predetermined section associated with the map data before being updated can be newly associated with the updated map data. Therefore, even if the map data is updated, the position information of the predetermined section can be taken over.

  The selection unit 105 accepts selection of a predetermined section desired by the user from a plurality of predetermined sections registered by the registration unit 102. The selection unit 105 may accept selection of a plurality of predetermined sections. In addition, when the section determination unit 108 determines that the current position of the mobile body is within any one of a plurality of predetermined sections, the selection unit 105 searches for a predetermined section including the current position. The user may accept selection from the user as to whether or not to set a section for suppressing re-search for a new guidance route by the unit 109. That is, after the route determination unit 107 determines that the vehicle is off the guidance route, and the section determination unit 108 determines that the current location of the moving object is within the predetermined section, the search unit 109 within the predetermined section The user can select whether or not to re-search for a new guidance route.

  The acquisition unit 106 acquires position information of the current location of the mobile object. Specifically, the acquisition unit 106 acquires positioning information transmitted from a satellite as position related information. Specifically, the positioning information transmitted from the satellite is, for example, positioning information transmitted from a plurality of GPS (Global Positioning System) satellites.

  The route determination unit 107 determines whether the current location of the moving object acquired by the acquisition unit 106 has deviated from the guidance route. Specifically, the route determination unit 107 determines that the current location of the mobile object has deviated from the guidance route when the current location of the mobile object cannot be matched to the guidance route on the map by map matching, for example.

  The section determination unit 108 determines whether or not the current location of the moving object acquired by the acquisition unit 106 is within a predetermined section. That is, the section determination unit 108 determines whether or not the current location of the moving object is within the predetermined section registered by the registration unit 102. In addition, when the selection unit 105 receives a selection of a predetermined section desired by the user from the plurality of predetermined sections, the section determination unit 108 determines that the current location of the mobile object is selected by the selection unit 105. It is determined whether it is within a desired predetermined section.

  If the current location of the mobile object is one of all the links connecting the first point and the second location for which registration is accepted by the registration unit 102, the current location of the mobile object is within the predetermined interval. You may judge that there is. That is, when the current position of the moving object passes through the first point, the section determination unit 108 determines that the current position of the moving object is within the predetermined section, regardless of which route the user has moved to the second point. You may judge that there is.

  When the route determination unit 107 determines that the search unit 109 has deviated from the guide route, the search unit 109 searches again for a new guide route. In addition, when the section determination unit 108 determines that the route is within the predetermined section, the search unit 109 does not re-search for a new guide route even if the route determination unit 107 determines that the route is out of the guide route. In addition, even when the search unit 109 does not re-search for a new guide route, if the receiving unit 110 described later receives an input of an operation for starting a new search for a new guide route, the search unit 109 restarts the new guide route. The search may be started.

  In the situation where the reception unit 110 is determined to be within the predetermined section by the section determination unit 108 and is determined to have deviated from the guide route by the route determination unit 107, and the search unit 109 has not re-searched for a new guide route. An input of an operation for starting a new search for a new guidance route is received from the user.

(Route search device search processing procedure)
Next, a processing procedure of route search processing of the route search device 100 according to the present embodiment will be described. FIG. 2 is a flowchart showing a processing procedure of route search processing of the route search device according to the present exemplary embodiment. In the flowchart of FIG. 2, the registration unit 102 first receives registration of a predetermined section from the user (step S201). In step S201, for example, registration of the first point and the second point is accepted as a scheduled passage point of the moving body, and a section from the first point to the second point is registered as a predetermined section. In step S201, the current location of the moving body when registration is received from the user during the movement of the moving body is registered as the first point and the second point each time registration is accepted, and the first point from the first point is registered. A section up to two points may be registered as a predetermined section. Further, the selection unit 105 accepts selection of a predetermined section desired by the user from the predetermined sections for which registration has been received in step S201 (step S202).

  And the acquisition part 106 acquires the positional information on the present location of a moving body (step S203). Next, the route determination unit 107 determines whether or not the current location of the mobile object has deviated from the guidance route (step S204). In step S204, when it is determined that the current location of the mobile body is not off the guidance route (step S204: No), the process returns to step S203 and the subsequent processing is repeated. If it is determined in step S204 that the current location of the mobile object has deviated from the guidance route (step S204: Yes), the section determination unit 108 determines whether the current location of the mobile object is within a predetermined interval (step S205). ). In step S205, for example, it is determined whether or not the current location of the moving object is within a predetermined section desired by the user who received the selection in step S205.

  If it is determined in step S205 that the current location of the moving body is within the predetermined section (step S205: Yes), the search unit 109 does not re-search for a new guidance route (step S206), and the reception unit 110 newly It is determined whether or not an input of an operation for starting a re-search for a simple guidance route has been received (step S207).

  If an input of an operation for starting a new search for a new guidance route is not accepted in step S207 (step S207: No), the process returns to step S205, and the subsequent processing is repeated.

  When it is determined in step S205 that the current location of the mobile body is not within the predetermined section (step S205: No), or when an input of an operation for starting a new search for a new guidance route is received in step S207 ( (Step S207: Yes), the search unit 109 searches again for a new guidance route (Step S208), and the series of processing ends.

  In the flowchart of FIG. 2, the selection of a predetermined section desired by the user in step S202 is accepted. However, the present invention is not limited to this. Specifically, for example, without accepting selection of a predetermined section desired by the user, in step S205, whether the current location of the mobile body is within the predetermined section with respect to all the predetermined sections received registration in step S201. It may be determined whether or not.

  As described above, according to route search device 100 of the present embodiment, when the current position of the moving object acquired by acquisition unit 106 is determined to be within a predetermined section by section determination unit 108, route determination is performed. Even if it is determined by the unit 107 that the route has deviated from the guide route, the search unit 109 can not search again for a new guide route. As a result, if the user wants to take a route different from the provided guide route, for example, a new route not registered in the map data or a section familiar to himself / herself, the user automatically restarts the new guide route. It can suppress searching. Therefore, the user can drive safely without feeling bothered by the guidance of the guidance route that he / she does not want to pass.

  Further, according to route search device 100 of the present embodiment, section determination unit 108 can determine whether or not the current location of the moving body is within a predetermined section registered by registration unit 102. Thus, the user can register a section in which a new guidance route is not searched again.

  Moreover, according to the route search device 100 of the present embodiment, the registration unit 102 accepts registration of the first point and the second point as the planned passing point of the moving body, and the section from the first point to the second point is determined. It can be registered as a predetermined section. Therefore, it is possible to accept registration of a section in which a new guidance route is not re-searched only by designating two points. Thus, the user can register a section in which a new guidance route is not desired to be searched again with a simple operation.

  Further, according to route search device 100 of the present embodiment, when registration unit 102 receives registration from a user while the moving body is moving, the current location of the moving body at that time is changed every time registration is received. It is possible to register as the first point and the second point, and register the section from the first point to the second point as the predetermined section. Therefore, it is possible to register between the points where the moving body has passed as a section in which a new guidance route is not searched again. Accordingly, the user can register a section in which the user does not want to re-search for a new guidance route with a simple operation while moving by the moving body.

  Further, according to route search device 100 of the present embodiment, section determination unit 108 determines whether or not the current location of the moving body is within a predetermined section desired by the user selected by selection unit 105. Can do. Therefore, when a plurality of predetermined sections are registered, only a section selected by the user can be a section in which a new guidance route is not searched again. Thus, the user can select whether or not to set the section registered according to the situation as a section where a new guidance route is not desired to be searched again.

  Further, according to the route search device 100 of the present embodiment, when the map data is updated by the control unit 104, the updated map data can be recorded in association with the position information of the predetermined section. Therefore, even if the map data is updated, it is possible to prevent the position information of the predetermined section from being deleted. Thereby, even if the user updates the map data, the user can continue to register a section in which a new guidance route is not desired to be searched again. Therefore, it is possible to save the trouble of registering the predetermined section each time the map data is updated.

  Further, according to route search device 100 of the present embodiment, it is determined by section determination unit 108 that it is within a predetermined section, and route determination unit 107 determines that the route has deviated from the guidance route, and search unit 109 determines a new route. In a situation where the guidance route is not re-searched, the reception unit 110 can accept an input of an operation for starting a new search for a new guidance route from the user. Therefore, when the receiving unit 110 receives an input of an operation for starting a new search for a new guide route, the search unit 109 can start a new search for a new guide route. As a result, if the user is lost in a section that he / she did not want to re-search for a new guidance route and wants to re-search for a new guidance route, the user can easily re-examine the new guidance route. You can search.

  Examples of the present invention will be described below. In the present embodiment, an example in which the route search 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, a data update program, a guidance route search program, a map matching processing program, a section registration program, and a reroute suppression 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.

  When the data update program updates the map data, it is not necessary to update the information related to the section for suppressing reroute (hereinafter referred to as “reroute suppression section”). Further, the data update program may record the updated map data in association with information on the reroute suppression section.

  The guide route search program searches for a guide route (guide route) to the destination point. In addition, when the current point of the vehicle deviates from the guide route, the guide route search program re-searches (reroutes) a new guide route from the current point to the destination point.

  The section registration program registers a reroute suppression section. Although the details will be described later, the section registration program accepts registration of a reroute suppression section from the user.

  The map matching processing program calculates the position on the road where the vehicle is likely to be actually located based on the position information of the current position of the vehicle and the map data recorded on the magnetic disk 305 or the optical disk 307 described later. Make it specific. As a result, the error between the actual current position of the vehicle and the current position on the map is corrected. In addition, the map matching processing program may display a mark representing the current location of the vehicle at a position on the road where the vehicle in the map information is likely to be actually located.

  Even if it is determined that the current location of the vehicle identified by the map matching processing program is out of the guidance route searched by the guidance route search program, the reroute suppression program registers the current location of the vehicle by the section registration program. In the case where the reroute suppression section is set, the reroute by the guidance route search program is suppressed. That is, even if the vehicle deviates from the guidance route, the reroute inhibition program does not cause the guidance route to be rerouted if the deviated point is within the reroute inhibition section.

  Further, the reroute suppression program may suppress the map matching process by the map matching process program while suppressing the reroute. By doing in this way, for example, when the reroute suppression section is a road that is not registered in the map data, it can be prevented that the map is matched to an incorrect road.

  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.

  Examples of information recorded on the magnetic disk 305 and the optical disk 307 include map data and function data. Moreover, the information regarding the reroute suppression section may be associated with the map data and recorded. 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. ing.

  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 such that each 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 information regarding the reroute suppression section is information regarding the reroute suppression section registered by the section registration program. Specifically, the information regarding the reroute suppression section is information regarding two points between the reroute suppression start point associated with the map data and the reroute suppression cancellation point. That is, it is information in which the position information of the reroute suppression start point and the position information of the reroute suppression release point are a set.

  The navigation device 300 may include a flash memory, although not shown. The flash memory is a rewritable nonvolatile semiconductor memory, and reads / writes data under the control of the CPU 301. As the flash memory, for example, a NAND flash memory or a NOR flash memory can be used. Examples of information recorded in the flash memory include the map data, function data, and information on the reroute suppression section described above. Further, the flash memory may have a function as the ROM 302. That is, the flash memory may record the above-described programs.

  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 can also 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 location of the vehicle on which the navigation device 300 is mounted. The current location 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. Get road traffic information. VICS is a registered trademark. The communication I / F 314 is configured by an in-vehicle wireless device that performs two-way wireless communication with a wireless device installed on the roadside, for example, when using DSRC (Dedicated Short Range Communication), and traffic information and map information Get various information. A specific example of DSRC is ETC (non-stop automatic fee payment system).

  The GPS unit 315 receives radio waves from GPS satellites and outputs information indicating the current location of the vehicle. The output information of the GPS unit 315 is used when the current position of the vehicle is calculated by the CPU 301 together with output values of various sensors 316 described later. The information indicating the current location 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 by the CPU 301 to calculate the current location of the vehicle and the amount of change in speed and direction.

  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 output unit 101, the registration unit 102, the recording medium 103, the control unit 104, the selection unit 105, the acquisition unit 106, the route determination unit 107, and the section determination unit included in the route search apparatus 100 illustrated in FIG. 108, search unit 109, and accepting unit 110, CPU 301 uses a program and data recorded in ROM 302, RAM 303, magnetic disk 305, optical disk 307, etc. in navigation device 300 shown in FIG. And the function is realized by controlling each part in the navigation device 300.

  That is, the navigation device 300 of the present embodiment executes the route search program recorded in the ROM 302 as a recording medium in the navigation device 300, thereby providing the functions of the route search device 100 shown in FIG. It can be executed according to the route search processing procedure shown in FIG.

(Contents of guidance route search processing)
Next, the processing contents of the navigation device 300 will be described. FIG. 4 is a flowchart showing the contents of the guidance route search process of the navigation device. In the flowchart of FIG. 4, first, the guidance route search program is executed to wait until the guidance route is set (step S401: No loop). When a guidance route is set in step S401 (step S401: Yes), position information on the current location of the vehicle is acquired (step S402).

  Next, based on the current location of the vehicle acquired in step S402, it is determined whether the vehicle has reached the destination location (step S403). If the destination point has not been reached in step S403 (step S403: No), it is determined whether or not the current point of the vehicle acquired in step S402 has deviated from the guidance route set in step S401 (step S404). . If it is determined in step S404 that the route is not deviated (step S404: No), the process returns to step S402 and the subsequent processing is repeated.

  If it is determined in step S404 that the vehicle has deviated from the guidance route (step S404: Yes), it is determined whether or not the current location of the vehicle acquired in step S402 is within the reroute suppression section registered by the section registration program. (Step S405). If it is determined in step S405 that it is within the reroute suppression section (step S405: Yes), the reroute suppression program is executed to suppress reroute (step S406).

  Next, it is determined whether or not an input of a cancel button for canceling the reroute suppression program is accepted (step S407). If an input of the cancel button is not accepted (step S407: No), the process returns to step S405, and thereafter Repeat the process.

  On the other hand, if it is determined in step S405 that it is not within the reroute suppression section (step S405: No), if an input of a release button is accepted in step S407 (step S407: Yes), the guidance route search program is executed, Based on the current location of the vehicle acquired in step S402, the guidance route to the destination location is rerouted (step S408). Then, the process returns to step S402, and the subsequent processing is repeated.

  Then, the above process is repeated, and if it is determined in step S403 that the vehicle has reached the destination point (step S403: Yes), the guidance route search program is stopped and the series of processes is terminated.

  In the flowchart of FIG. 4, when a plurality of reroute suppression sections are registered and selection of a reroute suppression section desired by the user is accepted, only the reroute suppression section desired by the user is received in step S405. Thus, it may be determined whether the current location of the vehicle is within the reroute suppression section. In this case, among the registered reroute suppression sections, regarding the reroute suppression sections that are not desired by the user, even if the current position of the vehicle is within these reroute suppression sections, the guidance is The route will be rerouted.

(Contents of reroute suppression section registration process)
Below, the reroute suppression area registration process of the navigation apparatus 300 is demonstrated. FIG. 5 is a flowchart showing a processing procedure of reroute suppression section registration processing in the navigation device. In FIG. 5, for example, the contents of the process of registering the reroute suppression section while the vehicle is traveling will be described.

  In the flowchart of FIG. 5, first, acquisition of position information of the current location of the vehicle is started (step S501). In the flowchart of FIG. 5, the position information of the current location of the vehicle may be always acquired. And it waits until the registration button for registering a reroute suppression area is pressed (step S502: No loop). If it is determined in step S502 that the registration button has been pressed (step S502: Yes), the current location of the vehicle when the registration button is pressed is acquired as the first location (step S503). At this time, it is determined whether or not a guidance route to the destination point is set (step S504).

  If it is determined in step S504 that a guidance route has been set (step S504: Yes), the reroute suppression program is executed regardless of whether or not the current location of the vehicle is off the guidance route. The reroute is suppressed (step S505). Then, the process waits until the registration button is pressed again (step S506: No loop). On the other hand, if it is determined in step S504 that the guidance route is not set (step S504: No), the process directly proceeds to step S506 without executing the reroute suppression program.

  Next, when it is determined in step S506 that the registration button has been pressed again (step S506: Yes), the current location of the vehicle when the registration button is pressed again is acquired as the second location (step S507). Next, it is determined whether registration of the section from the first point acquired in step S503 to the second point acquired in step S507 in the reroute suppression section has been accepted (step S508). If registration to the reroute suppression section is not accepted in step S508 (step S508: No), the process returns to step S502 and the subsequent processing is repeated.

  And when registration to a reroute suppression area is received in step S508 (step S508: Yes), it registers to a reroute suppression area from a 1st point to a 2nd point (step S509), and complete | finishes a series of processes.

  In the flowchart of FIG. 5, in steps S503 and S507, the current location of the vehicle when the registration button is pressed is acquired as the first location and the second location. However, the present invention is not limited to this. Specifically, for example, a location other than the current location of the vehicle may be acquired in advance as the first location and the second location regardless of whether or not the vehicle is traveling. That is, if a point is designated by the user on the map data other than the current point of the vehicle, the designated point may be acquired as the first point and the second point. Moreover, you may register a predetermined area as a reroute suppression area instead of between the 1st point and the 2nd point. Specifically, for example, an area surrounded by user operations on the map data may be registered as a reroute suppression section.

  Further, in the flowchart of FIG. 5, the registered reroute suppression section may be recorded in an area different from the map data of the magnetic disk 305 or the optical disk 307 and associated with the map data. When the map data is updated, only the map data may be updated, the reroute suppression section may not be updated, and the reroute suppression section may be associated again with the updated map data.

(Example of display contents)
Next, an example of display contents displayed on the display 313 of the navigation device 300 will be described. FIG. 6 is an explanatory diagram illustrating an example of display content. As shown in FIG. 6, the current point 602 of the vehicle and the guidance route 603 are displayed on the display 313 so as to be superimposed on the map data 601. The display 313 may also display a reroute suppression display 604 that indicates whether or not the reroute suppression program is being executed, and a release button 605 that receives an instruction from the user whether or not to cancel the reroute suppression.

  The guidance route 603 is, for example, a route that passes through the node A, the node B, the node C, and the node D in this order and reaches the node E that is the destination point. Here, for example, it is assumed that a reroute suppression section having the node B as the first point and the node G as the second point is registered. At this time, when the vehicle departs from the guidance route 603 from the node B, the node B is a reroute suppression section, and therefore the reroute of the guidance route is suppressed. In the reroute suppression display 604, for example, “reroute suppression is in progress” is displayed, and a release button 605 is displayed.

  Until the vehicle reaches the node G or until the cancel button 605 is pressed, the reroute is continuously suppressed. When the vehicle reaches the node G or when the cancel button 605 is pressed, the reroute is started. Here, for example, when the vehicle reaches the node G, a new guidance route 606 passing through the node G and the node I in this order as shown by a dotted line in the figure is searched.

  Next, for example, a process for registering a reroute suppression section will be described. Specifically, for example, a method of registering a section from node B to node G as a reroute suppression section while the vehicle is traveling will be described. For example, when the current point of the vehicle is Node B, if an input of a registration button is received from the user, Node B is acquired as the first point. For example, when the current position of the vehicle is the node G and the registration button is received again from the user, the node G is acquired as the second point, and the guidance route is suppressed. Start rerouting Then, the section from node B to node G is registered as a reroute suppression section.

(Data structure of information on reroute suppression section)
Next, a data configuration of information related to the reroute suppression section recorded in the navigation device 300 according to the present embodiment will be described. FIG. 7 is an explanatory diagram showing a data structure of information related to the reroute suppression section recorded in the navigation device. In FIG. 7, the information 700 regarding the reroute suppression section includes a plurality of reroute suppression section data 701. Each reroute suppression section data 701 is configured by node list data 710. The node list data 710 includes a plurality of node IDs 711. The node ID 711 is information unique to each node such as position coordinates. A region between the node IDs 711 written in the node list data 710 or an area surrounded by the node IDs 711 is a reroute suppression section.

  As described above, according to the navigation device 300 of the embodiment, when the vehicle deviates from the guidance route, the route is rerouted. However, even if the vehicle is outside the guidance route, the current point of the vehicle is the reroute suppression section. The reroute of the guidance route can be suppressed. Accordingly, when the user passes a road that is not registered in the map data or a road that the user is familiar with, the user can prevent the guide route from being rerouted even if the user leaves the guide route. Therefore, it is possible to drive the vehicle safely without being distracted by the guidance route and feeling the inconvenience of the reroute guidance. In addition, the user can easily register a reroute suppression section by designating two points on the map data in advance or surrounding an area. Furthermore, the user can easily register a reroute suppression section by designating a start point and an end point where the reroute is desired to be suppressed while the vehicle is traveling.

  As described above, according to the route search device, the route search method, the route search program, and the recording medium of the present invention, the re-search for the guidance route can be suppressed.

  Note that the route search method described in this embodiment can be realized by executing a program prepared in advance on a computer such as a personal computer, a workstation, or a mobile terminal device (mobile phone). 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 search apparatus 101 Output part 102 Registration part 103 Recording medium 104 Control part 105 Selection part 106 Acquisition part 107 Route judgment part 108 Section judgment part 109 Search part 110 Acceptance part

Claims (10)

Acquisition means for acquiring position information of the current location of the moving object;
Route determination means for determining whether or not the current location of the mobile object acquired by the acquisition means has deviated from the guidance route;
Search means for re-searching for a new guide route when the route determination means determines that the route has been deviated from the guide route;
In the route search device provided with
Section determination means for determining whether or not the current location of the mobile object acquired by the acquisition means is within a predetermined section;
The searching means does not re-search for the new guidance route even if it is judged that the route judgment means has deviated from the guidance route when it is judged by the zone judgment means to be within the predetermined section. A route search device. A registration means for accepting registration of the predetermined section from the user;
The route search device according to claim 1, wherein the section determination unit determines whether or not a current location of the mobile body is within the predetermined section registered by the registration unit.   3. The route according to claim 2, wherein the registration unit accepts registration of a first point and a second point as a scheduled passage point of the mobile body, and registers a section from the first point to the second point as a predetermined section. Search device.   When the registration unit receives registration from the user during the movement of the mobile body, the registration unit registers the current location of the mobile body at that time as the first point and the second point each time the registration is received, The route search device according to claim 2, wherein a section from a first point to the second point is registered as a predetermined section. A selection unit that receives selection of the predetermined section desired by the user from the plurality of predetermined sections registered by the registration unit;
The section determination means determines whether or not the current location of the mobile body is within the predetermined section desired by the user selected by the selection means. The route search device according to one. A control unit that records the predetermined section received by the registration unit in association with map data in a recording unit;
6. The control unit according to claim 2, wherein, when the map data is updated, the position information of the predetermined section is associated with the updated map data and recorded. Route search device. In a situation where it is determined by the section determination means that it is within the predetermined section, and it is determined that the route determination means has deviated from the guidance route, and the search means does not re-search for the new guidance route, A receiving means for receiving an input of an operation for starting a new search for the guidance route from the user;
The said search means starts the re-search of the said new guidance route, when the input of operation which starts the new search of the said guidance route is received by the said reception means. The route search apparatus as described in any one. In the route search method in the route search device,
An acquisition step of acquiring position information of the current location of the moving object;
A route determination step of determining whether or not the current location of the mobile object acquired by the acquisition step has deviated from the guidance route;
A search step for re-searching for a new guide route when it is determined that the route determination step has deviated from the guide route;
A section determining step for determining whether or not the current location of the mobile object acquired by the acquiring step is within a predetermined section;
In the search step, when it is determined by the section determination step that it is within the predetermined section, even if it is determined that the route determination step has deviated from the guide route, a new guide route is not searched again. A route search method.   A route search program causing a computer to execute the route search method according to claim 8.   A computer-readable recording medium on which the route search program according to claim 9 is recorded.

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