JP4245817B2 - Car navigation system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an in-vehicle navigation device that guides a vehicle to a destination according to a guidance route, and more particularly to an in-vehicle navigation device adapted to provide a user with information related to a parking lot near the destination during route guidance. .
In the following description, “a parking lot near the destination” refers to either a dedicated parking lot or a partner parking lot at the destination, or a nearby parking lot (including a paid parking lot). And Further, unless otherwise defined, the “vehicle” simply refers to the own vehicle.
[0002]
[Prior art]
Conventional typical vehicle-mounted navigation devices include a map data storage device such as a CD-ROM, DVD-ROM, or IC memory card that stores map data in advance, a display device, a GPS (Global Positioning System) receiver, a gyro, It has a sensor that detects the current position and current direction of the vehicle, such as a vehicle speed sensor, and reads out map data including the current position of the vehicle from the map data storage device. Based on this map data, a map image around the vehicle position is obtained. While drawing on the display screen, the vehicle position mark (location) is displayed superimposed on the map image on the display screen, scrolling the map image as the vehicle moves, or fixing the map image to the screen By moving the position mark, you can see at a glance where the vehicle is currently driving
[0003]
Also, in-vehicle navigation devices are usually equipped with a function (route guidance function) that guides a user so that the user can easily travel on a desired destination without making a mistake. With this route guidance function, a horizontal search is made for the optimal route (typically the route with the lowest cost) that connects the starting point (in many cases, the current position of the vehicle) to the destination using map data. Automatically search by performing a simulation calculation such as a method or Dijkstra method, and store the searched route as a guide route so that the guide route can be distinguished from other roads on a map image while traveling (for example, When the vehicle approaches a certain distance to the intersection where the course should be changed on the guidance route, the map of the intersection is displayed on the map image (intersection enlargement). By displaying a figure and an arrow indicating the direction of travel at the intersection, the user can grasp the optimum route toward the destination.
[0004]
When searching for a route, the user sets a destination in advance, and further sets a passing point on the way to the destination (that is, which route goes to the destination) as necessary. Also, if necessary, various conditions (whether priority is given to toll roads or priority is given to general roads, which of the reductions in travel distance or travel time is prioritized) are also set. The navigation device searches for a plurality of routes to the destination based on the set data, displays the searched routes in different colors, and provides route guidance according to one route selected by the user.
[0005]
At this time, the route currently selected during route guidance may be changed or the destination may be changed. For example, if you want to visit a department store before going to the destination you originally set, and you are not sure whether there is a department store in the middle of the currently selected route, set the destination department to a new destination. Reset as. By this resetting, the navigation device re-searches the route to the new destination, and provides route guidance to the user as described above.
[0006]
When route guidance is performed in this way and finally arrives at a destination, there are actually cases where one wants to go to the destination and where one wants to park the vehicle in a parking lot near the destination. For example, when a department store is set as a destination, from the viewpoint of the user driving the car, rather than being guided to the entrance of the department store, it is up to the dedicated parking lot of the department store or a parking lot affiliated with the department store. It is more convenient to be guided.
[0007]
For this reason, a conventional vehicle-mounted navigation device has a function for searching for a parking lot, for example, a command “search for a nearby parking lot”. According to this, since a parking lot in the vicinity of the destination is searched, the navigation apparatus performs route guidance to the parking lot by resetting the searched parking lot as a new destination.
[0008]
[Problems to be solved by the invention]
As described above, in the conventional vehicle-mounted navigation device, as the current technology, when the user arrives at the destination and tries to stop the vehicle at the parking lot in the vicinity, the user gives an instruction to that effect (for searching for the parking lot). Input setting) must be performed one by one.
For this reason, the operation of the input setting is troublesome for the user, and there is a disadvantage that an operational burden is placed on the user.
[0009]
In addition, if such an operation is performed while the vehicle is traveling, the safety is impaired. Therefore, it is desirable to perform the setting operation by stopping the vehicle from the viewpoint of safety. However, such a stop operation is cumbersome for the user and requires extra effort.
As described above, in the conventional in-vehicle navigation device, after the destination input setting and the route search based on the destination setting, the procedure for the input setting related to the parking lot near the destination and the route search based on the input setting is necessary. This is not convenient for the user.
[0010]
The present invention was created in view of the problems in the prior art, and automatically guides the vehicle to a parking lot near the destination without imposing a burden on the user, and thus, for the convenience of the user. An object of the present invention is to provide a vehicle-mounted navigation device that can perform the above.
[0011]
[Means for Solving the Problems]
In order to solve the above-described problems of the prior art, according to the present invention, information input means for inputting information designated by the user, a display device for providing guidance information to the user, and parking lot data are stored together with map data. Data storage means and control means operably connected to the information input means, the display device and the data storage means, the control means having a destination set via the information input means Sometimes, referring to the map data and the parking lot data, a route from the current position of the vehicle to the destination is searched, and the searched route is displayed on the screen of the display device so as to be superimposed on the map image. When at least one parking lot in the vicinity of the destination is searched and a predetermined distance is reached to the destination or the searched parking lot, the display is A path toward on the screen of the device from the current position of the vehicle and the route toward the destination from the current position of the vehicle to the parking lot Are displayed in separate guidance displays at the same time, and when simultaneously guiding each route to two or more parking lots, the route from the current position of the vehicle to the first candidate parking lot is Display in a relatively conspicuous display form compared to the route from the current position of the vehicle to another parking lot A vehicle-mounted navigation device is provided.
[0012]
According to the vehicle-mounted navigation device according to the present invention, when the destination is set (via the user) via the information input unit, the control unit searches for the route to the destination and the route searched for automatically. In addition to providing guidance, search for at least one parking lot in the vicinity of the destination, and when reaching a predetermined distance to the destination / parking lot, a route from the vehicle position to the destination on the screen of the display device And the route from the vehicle position to the parking lot Separate guidance displays are displayed at the same time, and when performing simultaneous guidance for each route to two or more parking lots, the route from the vehicle position to the first candidate parking lot is changed to another route. In the display form that stands out relatively compared to the route to the parking lot Displayed (simultaneous guidance for each route).
[0013]
This allows a parking lot near a set destination without burdening the user with the cumbersome operational burden of searching for a parking lot as seen in the prior art. (When there are two or more searched parking lots, the first candidate parking lot according to the user's preference) It is possible to automatically guide the vehicle until the user's convenience.
In addition, the destination A separate guidance display shows the route to the parking lot and the route from the vehicle position to the parking lot. Since the images are simultaneously displayed on the screen, the user is given an opportunity to select a route to go to the parking lot or to go to the destination without stopping at the parking lot. As a result, it is possible to eliminate the disadvantages expected when the user changes his mind and tries to go to the destination without stopping at the parking lot. For example, the destination Concerned Even when the parking lot is located in the opposite direction, it is possible to go straight to the destination as it is based on the shortest route guidance.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a block diagram showing the overall configuration of an in-vehicle navigation device according to an embodiment of the present invention.
In the figure, 1 indicates a CD-ROM (or DVD-ROM), and this CD-ROM 1 has a longitude of an appropriate size according to each scale level (1/12500, 1/25000, 1 / 50,000, etc.). Map data divided into width and latitude width is stored, and information such as industry, address, telephone number, etc. (so-called town page information) regarding various facilities (stores, companies, public facilities, etc.) is stored as facility data. Yes. This facility data includes data on parking lots (location, name, etc.). Reference numeral 2 denotes an operation unit for operating the navigation apparatus main body 10 to be described later. Specifically, the operation unit 2 has a form of a remote control transmitter. The remote control transmitter includes various menus and various items on the display screen. There are provided a joystick and various operation buttons for selecting and executing the selected menu.
[0015]
Also, 3 is a communication device such as an in-vehicle phone for communicating with various service centers, 4 is a VICS receiver that receives VICS (road traffic information communication system) information sent from a radio wave beacon or an optical beacon, and 5 is a GPS The GPS receiver which receives the GPS signal sent from a satellite and detects the longitude and latitude of the current position of the vehicle is shown. Reference numeral 6 denotes a self-contained navigation sensor, which is composed of an angle sensor 6a such as a gyro for detecting the vehicle direction, and a distance sensor 6b that generates a pulse for every predetermined travel distance. Reference numeral 7 denotes a liquid crystal display device. Under the control of the navigation apparatus body 10, a map around the current position of the vehicle, a guide route from the departure point to the destination, a vehicle position mark, and other guidance information Is displayed on the screen. Reference numeral 8 denotes a speaker for providing guidance information to the user by voice.
[0016]
In the navigation device body 10, 11 is a buffer memory for temporarily storing map data read from the CD-ROM 1, 12, 13, 14, 15 and 16 are the operation unit 2, the communication device 3, and the VICS receiver 4, respectively. The interface (I / F) connected to the GPS receiver 5 and the self-contained navigation sensor 6 is shown. Reference numeral 17 denotes a control unit constituted by a microcomputer. The control unit 17 detects the current position of the vehicle based on information output from the GPS receiver 5 and the autonomous navigation sensor 6, reads out map data to be displayed from the CD-ROM 1 to the buffer memory 11, Various processes related to navigation, such as searching for a guidance route from a departure place to a destination (including a parking lot) under search conditions set using the map data read into the buffer memory 11, are performed.
[0017]
Reference numeral 18 denotes a map drawing unit that performs map image drawing processing using the map data read out to the buffer memory 11, and 19 denotes various menu screens (operation screens), vehicle position marks, cursors, etc. An operation screen / mark generation unit 20 for generating various marks, and a guidance route storage unit 20 for storing guidance route data searched by the control unit 17 are shown. In this guidance route storage unit 20, data on all nodes (coordinates of points expressed in longitude and latitude) from the starting point to the destination of the guidance route searched by the control unit 17 and changed during the search. Guide route data is recorded. Further, 21 is a guidance route drawing unit that reads the guidance route data (node sequence) from the guidance route storage unit 20 and draws the guidance route with a color and line width different from those of other roads. An audio output unit that outputs an audio signal to the speaker 8 based on the signal is shown.
[0018]
Reference numeral 23 denotes a business type registration unit in which a business type (genre) of a facility that does not search for a parking lot is registered in advance. For example, if the destination (destination) is a facility that is surely equipped with a parking lot such as a family restaurant, car dealer, golf course, gas station, etc., it is necessary to search for a nearby parking lot Absent. Therefore, in this embodiment, the type of business (genre) of the facility that is surely provided with the parking lot is registered in advance in the business type registration unit 23, and the type of business of the facility set by the user as the destination is the type of industry registration unit 23. Is registered, the automatic search for a parking lot in the vicinity of the destination is not performed.
[0019]
Reference numeral 24 denotes a parking lot data storage unit for temporarily storing the parking lot data among the facility data read from the CD-ROM 1, and 25 denotes the parking lot data storage unit 24 based on the control from the control unit 17. The icon drawing part which performs the drawing process of the icon which instruct | indicates the set destination while performing the drawing process of the icon which instruct | indicates the parking lot corresponding to the read parking lot data is shown. Reference numeral 26 denotes an image composition unit. The map image drawn by the map drawing unit 18 is guided to the guide route drawn by the guide route drawing unit 21, the operation screen generated by the operation screen / mark generation unit 19, and various marks. The icons indicating the destination / parking lot drawn by the icon drawing unit 25 are appropriately superimposed and displayed on the screen of the display device 7.
[0020]
In this embodiment, the CD-ROM 1 is the “data storage unit”, the operation unit 2 is the “information input unit”, the control unit 17 (the map drawing unit 18, the operation screen / mark generation unit 19, the guidance route drawing unit 21, (Including the image composition unit 26) corresponds to “control means”.
When the vehicle-mounted navigation device according to the present embodiment reaches a predetermined distance to the destination or the searched parking lot during the route guidance to the destination on the screen of the display device 7, as will be described later, The route to the destination and the route to the parking lot are simultaneously displayed on the screen (that is, both routes are simultaneously guided).
[0021]
At this time, an icon for instructing a parking lot is simultaneously displayed on the screen together with an icon for instructing the destination. Moreover, you may use the guidance by the sound via the speaker 8 as needed.
FIGS. 2 to 6 show examples of screen display when the destination and the parking lot and each route to each are displayed simultaneously on the screen.
[0022]
FIG. 2 shows on the map image 31 displayed on the display screen 30 an icon indicating a destination (“G” surrounded by □) and an icon indicating a parking lot (“P” surrounded by □). In addition, the route GR (that is, the guidance route guided by the navigation device) from the vehicle position (displayed by the vehicle position mark 32) to the destination (G) and the route PR to the parking lot (P) are displayed. An example of the case is shown.
[0023]
Each route GR, PR is displayed in a different display form so that the user can easily identify it. In the illustrated example, the route toward the destination (G) is displayed with a solid line, and the route toward the parking lot (P) is displayed with a broken line. In this case, it is desirable to display each route in a relatively conspicuous color.
In the illustrated display example, the vehicle is positioned in front of a point (branch point) where each route is divided between the destination (G) and the parking lot (P). At this time, in addition to guidance via the display screen 30, voice guidance via the speaker 8, for example, guidance with a message such as “Further left direction is the destination and right direction is the parking lot” is performed. Also good.
[0024]
In the screen display example shown in FIG. 2, since the destination (G), the parking lot (P), and the vehicle position mark 32 are displayed on the same screen, the user has a relative positional relationship between these three parties. Can be grasped.
However, the destination and the parking lot are not necessarily located close to each other, and there may be a case where the destination cannot be displayed on the same screen. In that case, a map image with a scale that can display the destination (G), the parking lot (P), and the vehicle position mark 32 at the same time is newly displayed on the display screen 30. An example is shown in FIG.
[0025]
FIG. 3 divides the display screen 30 into two screens, a left screen L and a right screen R, leaving the original display screen on the left screen L, and displaying the destination and parking lot on the map image 31a on the right screen R. An example in which a destination (G), a parking lot (P), and a vehicle position mark 32 are displayed together with the respective routes GR and PR heading toward the vehicle is shown.
In the screen display examples shown in FIGS. 2 and 3, the case where there is one route to the parking lot is displayed, but the parking lots are basically guided in descending order of priority. As a form of priority, there are a method of guiding in the order closer to the destination, a method of guiding in the order of exclusive → affiliation → paid parking lot, a method of guiding in the order of cheaper parking charges, and the like. Therefore, in practice, a plurality of parking lots (that is, a plurality of routes toward the parking lot) are simultaneously guided on the same screen. A screen display example in this case is shown in FIG.
[0026]
FIG. 4 shows an example of the same display form as FIG. 3 in which each route toward each parking lot (P1, P2) is displayed in a different display form so that the user can easily identify according to the priority order. Yes.
In the screen display example shown in FIG. 4, for each route toward the destination (G) and the first candidate parking lot (P1), a display form that stands out to the same extent (both colors with high contrast, solid line / broken line display) ) And the route toward the second candidate parking lot (P2) is displayed in a less noticeable display form (colors with relatively low contrast and broken line display).
[0027]
FIG. 5 shows an example of the case where the positions of the parking lots (P1, P2) are displayed in different display forms so that the user can easily identify them according to the priority order in addition to the display form shown in FIG. ing.
In the screen display example shown in FIG. 5, the first candidate parking lot (P1) is displayed in a conspicuous display form (such as a color with high contrast), and the second candidate parking lot (P2) is not very noticeable. Displayed in a display form (such as a color with relatively low contrast).
[0028]
In the screen display examples shown in FIGS. 2 to 5, the case where the screen display is performed assuming that the destination (G) and the parking lots (P, P1, P2) are in different places has been described. Are not necessarily different in position, and may be at the same point. A screen display example in this case is shown in FIG.
FIG. 6 shows that when the destination (G) and the first candidate parking lot (P1) are in the same place, the icon G indicating the destination and the icon P1 indicating the first candidate parking lot are arranged side by side ( An example in the case of being displayed (partially overlapped) is shown. Other display forms are the same as those shown in FIG.
[0029]
When the location of the parking lot searched during the route guidance is the same as the location of the destination, in addition to guidance via the display screen (right screen R) as illustrated in FIG. For example, a message such as “The destination and the parking lot are in the same place” may be provided.
Hereinafter, the parking lot guidance process performed by the vehicle-mounted navigation device according to the present embodiment will be described with reference to FIGS.
[0030]
First, in first step S <b> 1, a user (for example, a driver) sets a destination by an input operation from the operation unit 2. The set destination data is input to the control unit 17 via the interface 12.
In the next step S2, the control unit 17 refers to the business type (genre) of the facility registered in the business type registration unit 23, and the set destination (facility etc.) requires the search for the parking lot. It is judged whether it belongs to (YES) or not (NO). If the determination result is YES, the process proceeds to step S3, and if the determination result is NO, the process flow is “finished”.
[0031]
In the next step S3, a guidance route recommended by this apparatus is searched, and guidance for the searched route is started. That is, the control unit 17 enters from the starting point to the destination based on the input destination data and the starting point data set with the current position of the vehicle detected by the GPS receiver 5 as the starting point. The map data of the range is read from the CD-ROM 1 to the buffer memory 11, and further, by referring to the data stored in the guidance route storage unit 20, a guide route connecting the starting point to the destination with the shortest distance is used for the horizontal search method or the like. Search by.
[0032]
Then, guidance for the searched route is started. At this time, the searched guidance route is superimposed on the map image and displayed on the screen of the display device 7. Thus, the user can grasp the guide route through the screen of the display device 7.
In the next step S4, the control unit 17 determines whether there is a dedicated parking lot or a partner parking lot for the set destination (YES) or not (NO). If the determination result is YES, the process proceeds to step S5, and if the determination result is NO, the process skips to step S7.
[0033]
In the next step S <b> 5, under the control of the control unit 17, data relating to the dedicated parking lot or the partner parking lot of the set destination is read from the CD-ROM 1 and taken into the parking lot data storage unit 24.
In the next step S6, the control unit 17 determines whether the number of captured parking lot data has reached a preset number (YES) or not (NO). If the determination result is YES, the process skips to step S10, and if the determination result is NO, the process proceeds to step S7.
[0034]
In step S <b> 7, the control unit 17 determines whether there is a parking lot (including a paid parking lot) other than a dedicated / affiliated (YES) or not (NO) near the set destination. If the determination result is yes, the process proceeds to step S8, and if the determination result is no, the process proceeds to step S9.
In step S8, under the control of the control unit 17, the data related to the parking lot in the vicinity of the set destination is stored in the CD within the range of the preset distance from the destination until the preset number is reached. -Read from ROM1 and take it into the parking lot data storage unit 24. Thereafter, the process proceeds to step S10.
[0035]
On the other hand, in step S <b> 9, the control unit 17 refers to the contents of the parking lot data storage unit 24 to determine whether there is any captured parking lot data (YES) or not (NO). If the determination result is YES, the process proceeds to step S10, and if the determination result is NO, the process flow is “finished”.
In step S <b> 10, under the control of the control unit 17, the set number of parking lot data taken into the parking lot data storage unit 24 is arranged in priority order. That is, the respective parking lot data are rearranged on the memory in accordance with preset priorities (in order of proximity to the destination, dedicated → affiliation → order of other parking lots, etc.).
[0036]
In the next step S11, the route toward each parking lot is searched according to the priority order rearranged in the previous step. This is performed in the same manner as the processing performed in step S3. That is, in the control unit 17, from the departure place to each parking lot based on the data regarding the position of each parking lot and the data of the departure place set with the current position of the vehicle detected by the GPS receiver 5 as the departure place. The map data of the range to be entered is read from the CD-ROM 1 to the buffer memory 11, and the route to each parking lot is searched with reference to the data stored in the guide route storage unit 20.
[0037]
In the next step S12, the controller 17 determines a predetermined distance from the GPS receiver 5 and the self-contained navigation sensor 6 to the first candidate parking lot with the highest destination or guidance priority based on the signals output from the GPS receiver 5 and the autonomous navigation sensor 6. It is determined whether (for example, 500 m) has been reached (YES) or not (NO). If the determination result is YES, the process proceeds to step S13, and if the determination result is NO, the determination process is repeated.
[0038]
In the next step S13, under the control of the control unit 17, the route to the destination and the route to the parking lot are simultaneously displayed on the screen of the display device 7 via the image composition unit 26 (a plurality of routes). Simultaneous route guidance).
At this time, as shown in the screen display examples of FIGS. 2 to 6, the icon (G) indicating the destination and the icons (P, P1, P2) indicating the parking lot are simultaneously displayed on the screen. Moreover, you may use the guidance by the sound via the speaker 8 as needed.
[0039]
In the next step S14, the control unit 17 determines whether the vehicle has reached the branch point to the destination / parking area (YES) or not (NO). If the determination result is YES, the process proceeds to step S15, and if the determination result is NO, the determination process is repeated.
In the next step S15, the control unit 17 determines whether or not the user has selected the parking lot, that is, whether or not the vehicle has gone to the parking lot (YES) or not (NO). If the determination result is YES, the process proceeds to step S16, and if the determination result is NO, the process skips to step S19.
[0040]
In step S <b> 16, the control unit 17 determines whether the vehicle is parked in the parking lot (YES) or not (NO) based on the signal output from the self-contained navigation sensor 6. If the determination result is YES, the process flow is “finished”, and if the determination result is NO, the process proceeds to step S17.
In the next step S17, the control unit 17 determines whether or not the vehicle has passed through the parking lot (that is, the parking lot guided as the first candidate) (YES) or not (NO). If the determination result is YES, the process proceeds to step S18, and if the determination result is NO, the process returns to step S16 and the above process is repeated. As a case where the determination result is YES, for example, a case where the parking lot is full is conceivable.
[0041]
In the next step S18, the route to the next candidate parking lot is guided through the screen of the display device 7 based on the priority order under the control of the control unit 17. For example, in the screen display examples of FIGS. 4 to 6, route guidance to the second candidate parking lot (P2) is performed. Then, it returns to step S16 and repeats said process.
On the other hand, in step S19, under the control of the control unit 17, on the screen of the display device 7 via the image composition unit 26, the route to the parking lot is also guided along with the route to the destination ( That is, the simultaneous guidance of a plurality of routes is continued). This is because the present invention is premised on “parking the vehicle in the parking lot”.
[0042]
In the next step S20, the control unit 17 determines whether the vehicle has arrived at the destination (YES) or not (NO). If the determination result is YES, the process proceeds to step S21, and if the determination result is NO, the determination process is repeated.
In the next step S21, the control unit 17 determines that the user stops at the destination once and then heads for the parking lot, and resumes guidance of the route to the parking lot via the screen of the display device 7.
[0043]
In the next step S22, the control unit 17 determines whether the vehicle is away from the destination by a certain distance (YES) or not (NO). If the determination result is YES, the process proceeds to step S23, and if the determination result is NO, the process proceeds to step S24.
In step S23, the control unit 17 determines that the user does not intend to park the vehicle in the parking lot, and ends this processing flow.
[0044]
On the other hand, in step S24, it is determined whether the vehicle is parked in the parking lot (YES) or not (NO) in the same manner as the processing performed in step S16. If the determination result is YES, the process flow is “finished”, and if the determination result is NO, the process proceeds to step S25.
In the next step S25, it is determined whether the vehicle has passed the parking lot (YES) or not (NO) in the same manner as the processing performed in step S17. If the determination result is YES, the process proceeds to step S26, and if the determination result is NO, the process returns to step S22 and the above process is repeated.
[0045]
In the next step S26, the route to the next candidate parking lot is guided in the same manner as the process performed in step S18. Then, it returns to step S22 and repeats said process.
As described above, according to the in-vehicle navigation device according to the present embodiment, when the user first sets a destination, the search for the guide route to the destination and the guidance of the searched route are automatically started thereafter. And near the destination At least one parking lot and Search for a route to the parking lot, The relevant parking lot (when there are two or more searched parking lots, the first candidate parking lot according to the user's preference) Until the predetermined distance is reached, the route from the vehicle position to the destination on the screen of the display device 7 and the vehicle position Concerned Route to the parking lot And simultaneously guide (Voice guidance via speaker 8 if necessary Including) The simultaneous guidance is continued until the vehicle is parked in the parking lot.
[0046]
This allows a parking lot near the set destination without the need for troublesome input setting operations for searching for a parking lot as seen in the prior art. (When there are two or more searched parking lots, the first candidate parking lot according to the user's preference) It is possible to automatically guide the vehicle until. This contributes to the convenience of the user.
Also, the route from the vehicle position to the destination and the route from the vehicle position to the parking lot With separate guidance display Since the images are simultaneously displayed on the screen, the user is given an opportunity to select a route to go to the parking lot or to go to the destination without stopping at the parking lot. As a result, it is possible to eliminate the disadvantages expected when the user changes his mind and tries to go to the destination without stopping at the parking lot. For example, FIG. , Fig. 4 etc. Even if the destination and the parking lot are located in the opposite direction (left-right direction) as seen from the position of the vehicle on the screen, follow the route guidance to the destination (the shortest route guidance) You can go straight to your destination.
[0047]
【The invention's effect】
As described above, according to the vehicle-mounted navigation device according to the present invention, if the user first sets a destination, the subsequent vicinity of the destination is automatically performed without placing an operational burden on the user. Parking lot (When there are two or more parking lots, the first candidate parking lot according to the user's preference) It is possible to guide the vehicle to the user's convenience.
In addition, the route from the vehicle position to the destination and the parking lot With separate guidance display The simultaneous display on the screen gives the user the opportunity to select the route to go to the parking lot or to go to the destination without going to the parking lot. Even when trying to go to the destination without any problem, it is possible to eliminate the disadvantages expected in that case (the possibility of being forced to make a roundabout route guidance).
[Brief description of the drawings]
FIG. 1 is a block diagram showing an overall configuration of an in-vehicle navigation device according to an embodiment of the present invention.
FIG. 2 is a diagram showing a screen display example (part 1) related to simultaneous display of a destination / parking lot.
FIG. 3 is a diagram showing a screen display example (part 2) related to simultaneous display of a destination / parking lot;
FIG. 4 is a diagram showing a screen display example (part 3) related to simultaneous display of a destination / parking lot.
FIG. 5 is a diagram showing a screen display example (part 4) related to simultaneous display of a destination / parking lot.
FIG. 6 is a diagram showing a screen display example (part 5) related to simultaneous display of a destination / parking lot.
7 is a flowchart showing an example of parking lot guidance processing performed by the in-vehicle navigation device of FIG. 1. FIG.
8 is a flowchart showing processing subsequent to the processing flow of FIG.
FIG. 9 is a flowchart showing processing subsequent to the processing flow of FIG. 8;
[Explanation of symbols]
1 ... CD-ROM (data storage means)
2. Operation unit (information input means)
4 ... VICS receiver
5 ... GPS receiver
6 ... Self-contained navigation sensor (angle sensor, distance sensor)
7 ... Display device
8 ... Speaker
10. Navigation device body
17. Control unit (control means)
18 ... Map drawing part
19 ... Operation screen / mark generator
20 ... Guidance route storage unit
21 ... Guide route drawing unit
23 ... Industry Registration Department
24 ... Parking data storage
25. Icon drawing part
26. Image composition unit
30 (L, R) ... display screen
31, 31a ... Map image
32 ... Vehicle position mark
G ... Icon indicating the destination
GR: Route to destination (guide route)
P, P1, P2 ... Icons that indicate parking
PR, PR1, PR2 ... Route to the parking lot

Claims (6)

Information input means for inputting information specified by the user;
A display device for providing guidance information to a user;
Data storage means for storing parking lot data together with map data;
Control means operably connected to the information input means, display device and data storage means,
The control means includes
When a destination is set via the information input means, the map device and the parking lot data are referred to, a route from the current position of the vehicle to the destination is searched, and the searched route is the display device. And overlaid on a map image on the screen, and searches for at least one parking lot near the destination,
When a predetermined distance is reached to the destination or the searched parking lot, the route from the current position of the vehicle to the destination and the current position of the vehicle head to the parking lot on the screen of the display device. The route is displayed separately and at the same time,
Furthermore, when performing simultaneous guidance for each route to two or more parking lots, a route from the current position of the vehicle to the first candidate parking lot is a route from the current position of the vehicle to another parking lot. A vehicle-mounted navigation device, characterized by being displayed in a relatively conspicuous display form compared to the above . Comprising icon drawing means for drawing an icon indicating a parking lot corresponding to the parking lot data and an icon indicating the destination;
When the control means performs simultaneous guidance of a plurality of routes via the screen of the display device, icons indicating the destination and the parking lot are respectively displayed on the screen of the display device via the icon drawing means. The in-vehicle navigation device according to claim 1, which is displayed. The control means can simultaneously display the icon indicating the destination and the parking lot and the position mark of the vehicle on the map image when simultaneously guiding a plurality of routes through the screen of the display device. The in-vehicle navigation device according to claim 2 , wherein display control is performed as described above. When simultaneous guidance of several routes said control means via a screen of the display device, the information relating to of identity at the guide claim 1, characterized by comprising a speaker provided in the form of speech 3 The in-vehicle navigation device according to any one of the above. 5. The in-vehicle navigation device according to claim 4 , wherein when a parking lot location searched during route guidance is the same as the destination location, guidance to that effect is provided via the speaker. . When the location of the parking lot searched for during route guidance is the same as the location of the destination, the control means displays the destination and parking lot on the screen of the display device via the icon drawing means. The in-vehicle navigation device according to claim 2 , wherein icons for instructing the respective parts are partially overlapped and displayed.

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