JP2011179933A - Navigation apparatus and program for navigation - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a user to recognize which region and which parking lot ensure reliable parking. <P>SOLUTION: A navigation apparatus divides the periphery of a destination into a plurality of regions on the basis of the parking probabilities of a plurality of parking lots on the periphery of the destination to search for a plurality of parking lots within a region specified by a user. In other words, a prescribed region on the periphery of the destination is divided into a plurality of regions to calculate the parking probability of the whole area (the sum of parking probabilities) of the overall region for each region on the basis of the parking probability of each parking lot present in each region and guide the user. The sum of parking probabilities is the probability P2 at which the user can park one's vehicle to any parking lot when going through all the parking lots. The user can determine in which region the user should look for a parking lot on the basis of the sum of parking probabilities for each region notified by the guidance. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a navigation device and a navigation program, and for example, relates to a search for a travel route that guides a parking lot existing around a destination.

2. Description of the Related Art Navigation devices that acquire and guide a travel route to an input destination by searching or communicating are widely used. In this navigation device, in addition to guiding a parking lot by setting a parking lot as a destination, a navigation device that searches for a parking lot around the destination and obtains a driving route to the parking lot is also proposed. Has been.
For example, Patent Document 1 describes a technique for displaying on-street parking (on-street parking lot) positions and unoccupied vehicle probabilities existing around a vehicle position in map information together with the current position.
However, the displayed empty vehicle probability is an individual probability of each on-street parking, and the possibility of parking in any parking lot cannot be known as the entire region.
For this reason, the user may select one of the displayed on-street parking spots and move, but may not be able to park when actually driving to that on-street parking spot. It is necessary for the user to check again the unoccupied vehicle probability and to select the next on-street parking to be moved, which is troublesome for the user. Moreover, when moving through a plurality of on-street parking spaces, there is a possibility that the same road will be overlapped, which may prevent efficient parking.

JP 2009-162529 A

  An object of the present invention is to enable easy and efficient parking in any parking lot.

(1) In invention of Claim 1, the destination acquisition means which acquires the destination, the parking lot search means which searches the parking lot which exists in the predetermined area including the acquired destination, and the searched parking Parking probability acquisition means for acquiring a parking probability that can be parked for each parking lot, dividing means for dividing the predetermined area into a plurality of areas based on a distance from a destination, and for each of the divided areas, A navigation device is provided that includes a parking unit that acquires a parking probability of a parking lot existing in the vehicle and guides the parking probability of the entire region for each region.
(2) In the invention described in claim 2, the dividing means divides a center of the predetermined area and the plurality of divided areas into a plurality of areas based on a vehicle position. The navigation device described in 1. is provided.
(3) In invention of Claim 3, it comprises the route search means which searches the driving route which passes through the parking lot which exists in each area | region, The said route search means of the parking lot which exists in the selected area | region The navigation apparatus according to claim 1, wherein a travel route that passes through a predetermined number of parking lots in order from the destination is searched.
(4) In the invention according to claim 4, the navigation apparatus according to claim 3, further comprising route guidance means for guiding a parking lot via the travel route according to the searched travel route. I will provide a.
(5) In the invention according to claim 5, when the vehicle arrives at any of the parking lots on the travel route, the guiding means guides the parking probability of the entire parking lot via which the passing parking lot is excluded. A navigation device according to claim 4 is provided.
(6) In invention of Claim 6, the destination acquisition function which acquires the destination, the parking lot search function which searches the parking lot which exists in the predetermined area including the acquired destination, and the searched parking A parking probability acquisition function that acquires a parking probability that can be parked for each parking lot, a division function that divides the predetermined area into a plurality of areas based on a distance from a destination, and a plurality of the divided areas, A navigation program is provided that obtains a parking probability of a parking lot existing in the vehicle and causes a computer to realize a guidance function for guiding the parking probability of the entire region for each region.

  In the present invention, the predetermined area including the acquired destination is divided into a plurality of areas based on the distance from the destination, the parking probability of the parking lot existing in each area is acquired, and for each area, the entire area Therefore, the user can recognize a more appropriate area based on the parking probability of the entire displayed area.

It is a system configuration figure of the navigation device of this embodiment. It is a flowchart showing the content of the total parking probability guidance process. It is a display example of the guidance screen which guides a parking area | region and its total parking probability. It is a flowchart showing the content of the route search process. It is a flowchart showing the content of the route guidance process. It is a display example of the other guidance screen which guides a parking area | region and its total parking probability.

Hereinafter, preferred embodiments of the navigation device and the navigation program of the present invention will be described in detail with reference to FIGS.
(1) Outline of Embodiment The navigation device according to the present embodiment divides a predetermined area including a destination into a plurality of areas, and determines the entire area for each area from the parking probability for each parking lot existing in each area. The parking probability (referred to as total parking probability) is calculated and guided to the user.
The total parking probability may be a total value P1 obtained by adding the parking probabilities of the respective parking lots. Further, the probability P2 of parking at any parking lot when passing through all parking lots, and the parking probability of all parking lots. The average value P3 may be used.
The user can determine in which area the parking lot should be searched with reference to the total parking probability of each guided area.

Further, when any one area is selected, a route reaching the destination via a plurality of parking lots (all or a part of the parking lots) existing in the selected area is searched, and each route and I will guide you through the parking lot.
When arriving at a via parking lot, the total parking probability for the remaining via parking lots including the parking lot and excluding the already arrived parking lots (unarrived via parking lots) is guided.
By displaying the total parking probability of the unsent parking lots every time arriving at the passing parking lot in this way, the user determines whether to stop at the arriving parking lot or at another parking lot. be able to.
In this case, not only the total parking probability but also the location of the arriving parking lot and other parking lots, and the destination are displayed on the map, so that the user parks in the arriving parking lot or parks in another parking lot. This can be determined in consideration of the positional relationship with the destination.
Furthermore, you may make it display the parking probability of the arriving parking lot as a user's judgment information.
The total parking probability of a parking lot that has not arrived may be calculated every time it arrives at one of the parking lots, and when a route to reach the destination via multiple parking lots is searched. It may be calculated.

  In the present embodiment, it is assumed that M parking lots are sequentially routed and parked in the first empty parking lot.

(2) Details of Embodiment FIG. 1 is a system configuration diagram of a navigation apparatus to which this embodiment is applied.
The navigation device is mounted on a vehicle and includes a current position detection device 10, an information processing control device 20, an input / output device 40, and an information storage device 50 as shown in FIG.

The current position detection device 10 is configured as follows.
The azimuth sensor 12 is a means for detecting an angle that has changed relative to a reference angle (absolute azimuth). In this embodiment, a gyro sensor that detects a change in angle using an angular velocity is used. Yes. Note that an optical rotation sensor attached to the rotating part of the handle, a rotary resistance volume, or an angle sensor attached to the wheel part may be used. Further, the direction sensor 12 may be, for example, a geomagnetic sensor that detects in which direction the vehicle is located from detection in the N direction based on a magnet, and may be a means for detecting an absolute direction.

The distance sensor 13 is a means that can measure the moving distance of the vehicle, and for example, a sensor that detects and counts the rotation of a wheel or a sensor that detects acceleration and integrates it twice.
The GPS (Global Positioning System) receiver 14 is a device that receives a signal from an artificial satellite, and includes various signals such as signal transmission time, position information of the receiver, moving speed of the receiver, and traveling direction of the receiver. Information can be obtained.

  The information processing control device 20 performs calculation and control based on information input from the current position detection device 10 and the input / output device 40 and information stored in the information storage device 50, and displays the calculation result on the display 42 and the printer 43. Or it is a means to control to output to output means, such as the speaker 44. FIG.

The information processing control device 20 is configured as follows.
The central processing unit (CPU) 21 performs overall calculation and control of the entire navigation device.
The ROM 22 includes a normal destination setting program, a route search processing program, a route guidance processing program, and a total parking probability guidance processing program according to the present embodiment for searching for a route to the destination, navigation such as display guidance and voice guidance, and the like. Various programs such as a route search processing program and a route guidance processing program are stored. The ROM 22 may be divided into a first ROM and a second ROM, and a navigation program related to voice guidance may be stored in the second ROM, and other programs may be stored in the first ROM.
The sensor input interface 23 is a means for receiving information from the current position detection device 10.

  The RAM 24 stores information input by the user such as destination information and passage point information input by the input device 41, and results calculated by the CPU 21 based on the user input information and route search It is a storage means for storing the map result read or the map information read from the information storage device 50.

The communication interface 25 is means for inputting / outputting various information via the transmission path 45. Specifically, the GPS receiver 14, the input device 41, the printer 43, and the information storage device 50 are connected via the transmission path 45.
The timepiece 28 is configured by using, for example, a crystal resonator, and clocks time or provides operation timing of each part of the navigation device by oscillation.
In addition, an image processor dedicated to image processing for processing vector information processed by the CPU 21 into image information, an image memory for storing image information processed by the image processor, and audio information read from the information storage device 50 are processed. However, a voice processor dedicated to voice processing to be output to the speaker 44 may be provided.

The input / output device 40 includes an input device 41 for inputting data such as a destination, a passage point, and a search condition by a user, a display 42 for displaying an image, a printer 43 for printing information, and a speaker 44 for outputting sound. The
The input device 41 includes, for example, a touch panel, a touch switch, a joystick, a key switch, and the like.
The display 42 displays a map around the current location and a travel route to the destination.
Note that the input / output device 40 may not include the printer 43.

The information storage device 50 is connected to the information processing control device 20 via the transmission path 45.
The information storage device 50 stores a map data file 51, a parking lot data file 52, and other data files 53.
The information storage device 50 is generally composed of an optical storage medium such as a DVD-ROM, a CD-ROM, or a magnetic storage medium such as a hard disk, but various types such as a magneto-optical disk and various semiconductor memories. You may comprise with an information storage medium.
Information that needs to be rewritten may be constituted by a rewritable hard disk or flash memory, and other fixed information may be a ROM such as a CD-ROM or DVD-ROM.

The map data file 51 stores map data, road data, destination data, and other data as various data necessary for map display, route search, and route guidance in navigation.
As map data, a national road map, a road map of each region, a house map, or the like is stored. The road map is composed of roads such as main arterial roads, expressways, narrow streets, and ground targets (facility etc.). A house map is a city map in which a figure representing an outer shape of a ground building, a road name, and the like are displayed. The narrow street is, for example, a relatively narrow road having a road width equal to or less than a predetermined value below a national road or prefectural road.
As for the map data, a map of a predetermined range including a current vehicle position and a point designated by the user is displayed on the display 42 at a predetermined scale. On this map, the current position of the vehicle and the designated point are displayed.

The road data is data regarding roads such as the position and type of each road, the number of lanes, and the connection relationship between the roads, and is composed of node data and link data. The road data is used for route search and map matching, and is also used when the searched travel route is displayed over the map data.
The node data is data representing geographic coordinate data of each node used for route search on a map.
For example, a road connection point such as an intersection is represented by a node, and a road between the connection points (that is, a non-branching area of the road) is represented by a link. In this way, it functions as route data representing the connection relation of the node data route.
In addition, for those where travel is restricted due to traffic restrictions, such as entry prohibition and one-way traffic, attributes indicating this are given to each link, but these attributes should be given to intersection nodes. Also good.
Node data is supplementary to characteristic points between intersections (for example, points at the start, middle and end of a curve, and points where the altitude changes), along with intersection nodes that are always set for each intersection. There is an auxiliary node that may be set to The intersection node includes information related to the intersection such as the geographical position coordinates and name of the intersection.

The destination data is data such as the locations and names of places and facilities that are likely to be destinations such as major tourist spots, buildings, and companies / businesses described in the telephone directory.
The destination data includes a parking lot as a facility, and when any destination (excluding the parking lot) is set by the user, the destination data is set as a target of the total parking probability guidance process of the present embodiment. Parking lots around the destination are searched.

The parking lot data file 52 stores full / vacant information of each parking lot included in the destination data. As the fullness information in the display, the parking probability that can be parked in each parking lot is stored for each day of the week and time zone. This fullness information may be acquired in real time, or may be both based on statistical information or the like.
The vacancy information by statistics is accumulated storage of past parking lot vacancy information for each day of the week and every time zone, and based on the statistical result of the accumulated vacancy information, the vacancy information for each day of the week and every time zone is calculated. The This fullness information is calculated by an information processing device or an information center installed in each parking lot.
In addition, the parking probability may be stored in a more detailed classification including the season and the month.
Further, when the parking amount is different from a normal amount such as a specific event day (for example, New Year's Day or a national holiday), the parking probability on the specific event day may be stored. In this case, the parking probability may be stored for each time zone.

In the present embodiment, the vacancy information is obtained by acquiring specific data obtained by collecting the vacancy information for each parking lot, communicating from an information center, reading from a storage medium such as a CD, and other various methods. Save to the data file 52.
Regarding the collection of full / vacant information, it may be obtained and updated sequentially from a predetermined information center, or may be obtained directly from each parking lot.

  The other data file 53 includes, for example, image data of a photograph showing places where visual indications such as various facilities and sightseeing spots or major intersections are required, and when a set travel route is guided by voice. Audio data and the like are stored.

Next, the operation of the embodiment configured as described above will be described.
In addition, the total parking probability guidance to be described is a guide that divides a plurality of parking lots in the vicinity of each area when the destination is set, and calculates and calculates the total parking probability of each area. is there.
In this case, a parking lot key for instructing a search for a parking lot route according to the present embodiment is arranged on a map screen or the like, and when this parking lot key is selected, total parking probability guidance described below is executed.

FIG. 2 is a flowchart showing the contents of the total parking probability guidance process.
First, the information processing control device 20 acquires a destination (step 10). In this embodiment, since the navigation apparatus mounted on the vehicle is assumed, the destination is acquired by the destination set by the user in the destination setting process in the navigation function.

Next, the information processing control device 20 searches for a parking lot in a predetermined area including the acquired destination, for example, an area having a radius of the predetermined distance Rm from the destination based on the destination data in the map data file 51. . Then, it is determined whether or not there is a parking lot (step 11). If it does not exist (step 11; N), the process returns to the main routine.
In the present embodiment, the predetermined distance Rm is set to 500 m. This predetermined distance is set as a distance that can be reached on foot from a parking lot located at the farthest point. It should be noted that a longer distance, for example, R = 1 km, 2 km may be used, and the distance may be changed according to user preference.

  On the other hand, when there is a parking lot (step 11; Y), the information processing control device 20 divides the area around the destination Rm into areas for each radius rm (step 12). Region Note that the radius R may be divided into regions (n = 2 or 3, etc.) equally divided.

  Next, the information processing control device 20 acquires the parking probability for each parking lot existing within the predetermined area with the radius Rm from the fullness information of the parking lot data file 52 (step 13).

Next, the information processing control device 20 calculates the total parking probability (parking probability of the entire area) of the parking lots existing in the divided areas for each area (step 14).
The total parking probability may be a total value P1 obtained by adding the parking probabilities of the respective parking lots. Further, the probability P2 of parking at any parking lot when passing through all parking lots, and the parking probability of all parking lots. Although the average value P3 may be used, the probability P2 is adopted in the present embodiment.

The probability P2 of being able to park in any parking lot is determined as follows from the probability of being unable to park in each parking lot.
When the parking probability of a certain parking lot m is pm (≦ 1), the probability qm that the parking lot m cannot be parked is qm = (1−pm).
The probability Q that the vehicle cannot be parked in any of the M parking lots is obtained from Q = q1 × q2 ×.
And the probability P2 which can be parked in any of the M parking lots is P2 = (1-Q).

The information processing control device 20 guides the calculated total parking probability P2 for each area (step 15) and returns to the main routine.
The total parking probability P2 for each area is displayed on the guide screen of the display 42.
The information processing control device 20 stores the calculated total parking probability for each area in the RAM 24 for displaying a guidance screen and for a route search process described later.

FIG. 3 shows a display example of a guidance screen for guiding the parking area and its total parking probability.
As shown in FIG. 3, the information processing control device 20 includes a region 1 and a region obtained by dividing a predetermined region having a radius Rm around the destination G on the guidance screen for each rm according to the distance from the destination G. 2 is displayed in a distinguishable manner. In the example of FIG. 3A, the boundary lines of the areas are displayed for distinction.
And the information processing control apparatus 20 displays the total parking probability (parking probability of the whole area | region) calculated with respect to each area | region for every area | region. In the example of FIG. 3A, 20% is displayed as the total parking probability of the region 1 and 50% is displayed as the total parking probability of the region 2. Thus, the calculated total parking probabilities 0.2 and 0.5 are displayed as percentages in order to facilitate user recognition.

In general, a parking lot existing around a certain facility has a lower individual parking probability because the closer the facility is, the shorter the distance traveled after parking. Conversely, the further away from the facility, the higher the individual parking probability, but the longer the travel distance after parking.
In this embodiment, since the area is divided based on the distance centered on the destination, the area 1 near the destination has a low total parking probability of 20%, and the area 2 away from the destination has a total parking probability. Is as high as 50%.
The user can select the area that he / she wants to park after recognizing the total parking probability of each area and the distance relationship from the destination G.

In addition, as shown in FIG. 3A, each parking lot P is displayed according to the positional relationship around the destination G in each region.
Thereby, the user can also recognize how the parking lots of each area are dispersed in the area. For example, it can be recognized whether a plurality of parking lots are concentrated in one place in the area, dispersed throughout, or more or less near the destination.

Furthermore, as useful information when the user selects an area, the name of the parking lot and the parking fee may be displayed, and / or the individual parking probability may be displayed.
Further, the guidance screen may be displayed on the map screen by displaying the destination G, each of the areas 1 and 2, each parking lot, and the total parking probability of each area.

FIG. 3B shows another example of displaying the total parking probability.
In FIG. 3 (a), the total parking probability is displayed as a percentage of 20%, 50%, etc., but in the example of FIG. 3 (b), the total parking probability is displayed separately by the color of the entire area.
For example, when the total parking probability is 20% or less, red, 20% to 60% or less are represented in yellow, and 60% or less are represented in blue.

Next, route search processing based on an area obtained by dividing a predetermined area into a plurality of areas will be described with reference to the flowchart of FIG.
The information processing control device 20 acquires the area selected by the user (step 16).
In this embodiment, the user selects an area by acquiring the area selected by the user on the guidance screen (FIG. 3) displaying the total parking probability in the total parking probability guidance process.
When the user selects an area on the guidance screen, the display area of the area 1 or 2 is touched or displayed together with the area number, and a number corresponding to the area number is input from the numeric keypad. The information processing control device 20 recognizes the selected region by detecting which region is the touched position or by acquiring the input number.
Instead of selecting an area by looking at the guidance screen, the area selection criteria such as an area closer to the destination and an area with a high total parking probability are presented to the user, and the user selects the area selection criteria in advance. Thus, the area may be selected. In this case, the information processing control device 20 acquires one area from among the divided areas in accordance with a selection criterion previously selected by the user.

Next, the information processing control device 20 searches for a travel route passing through the parking lot in the acquired area, stores the searched travel route in the RAM 24 (step 17), and returns to the main routine.
In this search for the travel route, even if a travel route to the destination G set via each parking lot is searched, a travel route that passes through another parking lot to any one of the parking lots is searched. Alternatively, the user may select one of them.

About the order which passes through each parking lot which exists in an area | region, it sets to the order close | similar to the destination G, ie, the order from the distance from the destination G (it may be a linear distance or the distance by a driving route).
In this embodiment, all the parking lots existing in the area are subject to passing, but only the parking lot having an individual parking probability equal to or higher than a predetermined value is set as a subject to be passed, or the upper predetermined number having a high parking probability. It is good also as a target via a parking lot. Even in this case, the order of passing is the order close to the destination G.

When the travel route is searched by the above route search process and the vehicle starts to travel, the information processing control device 20 executes the route guidance process based on the searched travel route.
Note that the information processing control device 20 may search for a plurality of travel routes and present them to the user, and select the selected travel route as a guidance target, as in a normal route search.

FIG. 5 is a flowchart showing route guidance processing via the parking lot in the selected area.
When the vehicle starts traveling, the information processing control device 20 acquires a travel route from the RAM 24 (step 21), and performs guidance according to the acquired travel route (step 22).
This travel route guidance is the same as the conventional travel route guidance, and is performed as follows, for example.
That is, the information processing control device 20 detects the current position with the current position detection device 10, reads the map information around the current position from the map data file 51 of the information storage device 50, and displays it on the display 42. In addition, each passing parking lot and the travel route to be guided are displayed on the display 42 in accordance with the map display.
The information processing control device 20 performs route guidance by tracking the current position detected by the current position detection device 10.
In the route guidance, the vehicle position on the map is specified by map matching between the road data corresponding to the searched driving route and the current position detected by the current position detection device 10, and a map around the vehicle current position is displayed on the display 42. Then, the searched travel route is displayed on the map, and a current position mark (for example, displayed by a triangle or arrow pointing in the traveling direction in a circle) indicating the current position of the vehicle is displayed on the map.
Also, based on the relationship between the searched travel route and the current position, the necessity of guidance, that is, whether or not guidance for a travel route such as a predetermined route change point and direction guidance is necessary when straight traveling continues for a predetermined distance or more, etc. Judgment is made, and if necessary, display on the display 42 and voice guidance are executed.

The information processing control device 20 determines whether or not the vehicle has arrived at the parking lot through which the vehicle passes (step 23), and if it is not the parking lot (step 23; N), returns to step 22 and continues route guidance.
On the other hand, when the vehicle arrives at the passing parking lot (step 23; Y), the information processing control device 20 leaves the remaining parking lots (hereinafter referred to as the remaining parking lots) excluding the guided parking lot. The user is guided to the parking probability (step 24).
The parking probability relating to the remaining parking lot to be guided here is the total parking probability (P1, P2, or P3) for the remaining parking lot, and / or the individual parking probability of the remaining parking lot. In any case, the parking probability related to the remaining parking lot is displayed on the display 42 together with a map, a travel route, a destination, a via-route parking lot (may include a guided parking lot).

After displaying the parking probability relating to the remaining parking lot, the information processing control device 20 determines whether or not the parking lot is parked in the guided parking lot (step 25).
Here, as a case where the user does not park in the guided parking lot, there are cases where parking is not possible because the vehicle is full, and parking is possible but parking is not performed by checking the display of the parking probability related to the remaining parking lot. is there.
When the vehicle passes through the guided parking lot or enters the parking lot, it is judged that the vehicle is not parked if it comes out of the parking lot.

When parked in the guided parking lot (step 25; Y), the process returns to the main routine.
Here, it is determined that parking is possible when the ignition is turned off or the guidance end is input in the parking lot.

When traveling is continued without parking in the guided parking lot (step 25; N), the information processing control device 20 confirms whether there is a transit parking lot that is the next guidance target (step). 26).
If there is a transit parking lot that is the next guidance target (step 26; Y), the information processing control device 20 returns to step 22 and continues route guidance to the next parking lot.

  On the other hand, when there is no next guided parking lot, that is, when the guided parking lot is the last parking lot (step 26; N), the information processing control device 20 returns to the main routine.

If there is no next guidance parking lot (step 26; N), the information processing control device 20 inquires whether or not to perform route search and guidance for another area, and if it is a positive input, You may make it perform the route search and route guidance about the other area | region of guidance.
When there are a plurality of other areas, the total parking probability is again guided for each of the plurality of other areas at the time of inquiry so that the user can select the next area. Further, when the user has previously selected a selection criterion, the next area may be automatically selected according to the selection criterion.

As described above, according to this embodiment, the following effects can be obtained.
(1) The area around the destination is divided into a plurality of areas, and the total parking probability for each area is guided, so the user can park in any area with reference to the total parking probability for each guided area. You can decide what to look for.
(2) Since the parking probability related to the remaining parking lot is guided every time the transit parking lot is reached, the user can determine whether to park in the arriving parking lot or stop in another parking lot.

The embodiment of the navigation device and the navigation program of the present invention has been described above, but the present invention is not limited to the described embodiment, and various modifications can be made within the scope described in each claim. It is.
For example, although the in-vehicle navigation device has been described in the described embodiment, the functions of the navigation devices described above may be provided in the information processing server of the information center.
In the information center in this case, the destination is acquired by communication from the in-vehicle navigation device, and the total parking probability guidance process (FIG. 2) described in the present embodiment is performed on the parking lot around the acquired destination.
However, the information processing control device 20 transmits the guidance screen shown in FIG. 3 to the in-vehicle navigation device as guidance for the calculated total parking probability for each area (step 15). Also in this case, information similar to various modifications related to the guidance screen described in FIG. 3 may be sent to the in-vehicle navigation device.

  In addition, when the information center includes the navigation function of the embodiment described above, area selection information is acquired from the user of the in-vehicle navigation device, the route search process (FIG. 4) is executed, and the searched travel route is stored in the in-vehicle navigation device. Send.

In addition, although route guidance processing (FIG. 5) will be performed in a vehicle-mounted navigation apparatus, the parking probability regarding the remaining parking lot displayed when an information center arrives at each parking lot is previously stored for each parking lot. It is calculated and transmitted together when searching for the travel route and transmitting it to the in-vehicle navigation device.
However, each time the vehicle arrives at each via parking lot, the in-vehicle navigation device transmits the arrived parking lot to the information center, and in response to the transmission, the information center transmits the parking probability related to the remaining parking lot to the in-vehicle navigation device. May be.

Moreover, when parking in the parking lot on the way, you may make it display on the screen the movement path | route by the walk from the parking lot to the destination.
In this case, the walking movement route to the destination is searched and displayed at the time of parking. In the route search process (FIG. 4), each walking movement route from each parking lot to the destination is searched in advance. The walking movement route from the parking lot may be displayed during parking.
Whether or not to park is determined, for example, by making an inquiry by voice or screen display and answering it (voice recognition, selecting an affirmative key).

In the described embodiment, the center of the predetermined area and the divided area is the destination, but the center position may be changed based on the vehicle position.
For example, in FIG. 3, each center point having the radii rm and Rm is the destination, but as shown in FIG. 6, the center point may be a region moved to the current position side of the vehicle. That is, the center moves from the destination G to the vehicle side on a straight line connecting the destination G and the vehicle position. The amount of movement is less than each radius.
By doing in this way, it becomes easy to park on the near side rather than the destination.

Moreover, although embodiment demonstrated demonstrated the case where an area | region was divided | segmented for every distance rm, you may make it divide | segment an area | region according to the number of parking lots.
For example, the parking lots are arranged in the order of the shortest straight distance from the destination G (or the distance by the travel route), and the area is divided into upper s places (for example, 5 places, 10 places, etc.).
In addition, when the total number of parking lots existing within a predetermined area of radius Rm is U and the number of divided areas is v, it is divided into areas including U / v parking lots in order from the destination G. Also good.

10 current position detection device 20 information processing control device 21 CPU
40 I / O device 50 Information storage device 51 Map data file 52 Parking lot data file

Claims (6)

A destination acquisition means for acquiring a destination;
A parking lot search means for searching for a parking lot existing in a predetermined area including the acquired destination;
Parking probability acquisition means for acquiring a parking probability that can be parked for each searched parking lot;
Dividing means for dividing the predetermined area into a plurality of areas based on a distance from a destination;
For the plurality of divided areas, obtain the parking probability of the parking lot present in each area, and for each area, guiding means for guiding the parking probability of the entire area;
A navigation device comprising:
The dividing means divides a center of the predetermined area and the plurality of divided areas into a plurality of areas based on a vehicle position.
The navigation device according to claim 1.
Provided with a route search means for searching for a travel route via a parking lot existing in each area,
The route search means searches for a travel route that passes through a predetermined number of parking lots in order from the closest to the destination among the parking lots existing in the selected area.
The navigation device according to claim 1.
Route guidance means for guiding a parking lot via the travel route according to the searched travel route;
The navigation apparatus according to claim 3, further comprising:
5. The guide means according to claim 4, wherein when the vehicle arrives at any parking lot on the travel route, the guidance means guides the parking probability of the entire parking lot via which the parking lot that has arrived is excluded. Navigation device.
A destination acquisition function for acquiring a destination,
A parking lot search function for searching for a parking lot existing within a predetermined area including the acquired destination;
A parking probability acquisition function for acquiring a parking probability that can be parked for each of the searched parking lots;
A division function for dividing the predetermined area into a plurality of areas based on a distance from a destination;
For the plurality of divided areas, obtain a parking probability of a parking lot existing in each area, and for each area, a guidance function for guiding the parking probability of the entire area,
A navigation program characterized by causing a computer to realize the above.

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