JP2005207933A - Navigation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a navigation device which displays the courses from the outlet as desired by the users in a navigation device for searching the courses to the destination. <P>SOLUTION: When the current position is detected and is located within a parking lot, the available courses between all outlets of the parking lot and the destination are calculated (steps 108 and 134) and all of the courses calculated are shown on a display device 20 (steps 112 and 138). <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a navigation device that searches for a route to a destination.

Conventionally, when a vehicle is parked in a facility such as a large-scale parking lot where a plurality of exits exist, a navigation device that searches and displays a route to the destination via an optimal exit has been proposed (for example, a patent) Reference 1).
JP 2002-168642 A

  In the invention described in Patent Document 1, when the current position of the host vehicle is in a specific facility, the route calculation unit reaches the facility exit based on the in-facility map information stored in the map information storage unit. Search for routes and exits, and when there are multiple exits of the facility, the straight distance from the current position is the shortest, the travel distance from the current position is the shortest, the corresponding exit and the road outside the facility The optimum exit is selected based on the presence of a traffic light or a destination display board at the intersection with the link, and the selected optimum exit is presented along with the route.

  However, the optimum exit presented in this way is not necessarily the optimum exit for the user.

  For example, even if the user wants to reach a destination via other vacant exits while avoiding crowded exits, the navigation device presents the exit with the shortest straight line distance from the current position, and the user There was a problem that the route from the desired exit was not displayed.

  The present invention has been made in view of the above problems, and an object thereof is to provide a navigation device that displays a route from an exit desired by a user.

  In order to achieve the above object, according to the first aspect of the present invention, there is provided a navigation device for searching for a route to a destination, the current position detecting means for detecting a current position, and detected by the current position detecting means. A determination means for determining whether or not the current position is in a parking facility, and when the determination means determines that the current position is in a parking facility, the exit from all the parking facilities to the destination It is characterized by comprising route calculation means for calculating the route of each route to reach and display means for displaying all the routes calculated by the route calculation means.

  Thus, since the display means displays the route passing through all the exits of the parking facility, the route from the exit desired by the user can be displayed.

  According to a second aspect of the present invention, in the first aspect of the present invention, the invention further includes a determination unit that determines the presence / absence of partition data of the parking facility, and the route calculation unit is configured to determine whether the parking facility When it is determined that there is no section data, route calculation is performed for a straight route that connects each of the current position and all the exits of the parking facility with straight lines.

  In this way, the route calculation means can perform route calculation of a straight route that connects each of the current position and all the exits of the parking facility with straight lines.

  According to a third aspect of the present invention, in the second aspect of the present invention, the display unit is configured to indicate all exit directions in the parking facility based on the straight route calculated by the route calculation unit. Can be displayed.

  According to a fourth aspect of the present invention, in any one of the first to third aspects of the present invention, the invention further includes a receiving unit that receives a signal indicating a road condition outside the parking facility, and the display unit includes the receiving unit. On the basis of the signal indicating the road condition outside the parking facility received by the step, the road condition outside the parking facility can be displayed in characters for each exit.

  Further, in the invention according to claim 5, there is provided a determination unit that determines presence / absence of partition data of the parking facility, and the route calculation unit is determined by the determination unit that there is partition data of the parking facility The route calculation of each route from the current position to the destination is performed using the exit of the parking facility as a transit point.

  As described above, when the determination unit determines that there is partition data of the parking facility, the route calculation unit determines each route from the current position to the destination through the exit of the parking facility. Route calculation can be performed.

  According to a sixth aspect of the present invention, in the first aspect of the present invention, the guidance for guiding the route to the user from among all the routes displayed by the display means. Guide route designating means for designating a route, and guide means for guiding according to the guide route designated by the guide route designating means are provided.

  As described above, the guide route designating unit causes the user to designate a guide route for route guidance from among all the routes displayed by the display unit, and the guide unit is designated by the guide route designating unit. In addition, since the guidance is performed according to the guide route, the route from the exit desired by the user can be guided.

  FIG. 1 shows a configuration of a navigation device according to an embodiment of the present invention. As shown in the figure, the navigation device 1 includes a position detector 11, a map data input device 16, an input device 17, an audio output device 18, an external memory 19, a display device 20, a remote control sensor 21, an external communication device 23, and these. A connected control circuit 24 is provided.

  The position detector 11 has a known geomagnetic sensor 12, a gyroscope 13, a distance sensor 14, and a GPS receiver 15 for detecting the position of the vehicle based on radio waves from a satellite. Since these sensors 12 to 15 have errors of different properties, a plurality of sensors are used while being interpolated.

  The map data input device 16 is configured by a device that reads a recording medium such as a DVD-ROM or HDD, and controls map data, map matching data, facility information, etc. stored in the DVD-ROM or HDD. Based on a read request from the circuit 24, the data is output to the control circuit 24. Facility information is information such as the name, location point, and telephone number of a facility for a specific hotel, bank, convenience store, sightseeing spot, etc. at a point in the map.

  The map data stored in the storage medium of the map data input device 16 includes a map of the parking lot. Further, depending on the parking lot, there is a case where the division data indicating a parking division or a taxiway in the parking lot as shown in FIG. 2 is stored in the map data, and a case where the division data is not stored in the map data.

  As a storage medium for storing various data input from the map data input device 16, a CD-ROM, DVD, hard disk drive or the like is generally used based on the amount of data, but other media such as a memory card are used. May be used.

  The input device 17 includes a button, a touch panel, a switch, a microphone, and the like, and outputs a signal based on a user operation on these to the control circuit 24.

  The external memory 19 is a storage unit provided separately from the inside of the control circuit 24, and is configured by a writable storage device such as a hard disk drive (HDD) or a flash ROM. The external memory 19 stores a large amount of data that cannot be stored in the RAM or the like in the control circuit 24, stores data that cannot be deleted even when the power is turned off, and stores frequently used data as map data. It is used for purposes such as copying from the input device 16 and using it.

  The display device 20 has a display screen such as a liquid crystal display, and displays the video on a display screen such as a liquid crystal display in accordance with a video signal from the control circuit.

  The audio output device 21 includes a speaker, and causes the speaker to output the sound according to an audio signal from the control circuit 24.

  The remote control sensor 21 outputs a signal received from the remote control 22 that transmits a radio signal using infrared rays or the like to the control circuit 24 based on a user operation.

  The external communication device 23 receives guidance information such as traffic jam information and construction information transmitted from an optical beacon or the like installed on the roadside, and outputs the received guidance information to the control circuit 24.

  The control circuit 24 is configured as a normal computer, and includes a CPU, a ROM, a RAM, a flash memory, an I / O, and a bus line for connecting these configurations. The control circuit 24 executes a program for the operation of the navigation device 1 read from the ROM and the external memory 19, and when executing the program, writes information to the ROM, RAM and flash memory, and Signals are exchanged with the position detector 11, the map data input device 16, the input device 17, the audio output device 18, the external memory 19, the display device 20, the remote control sensor 21, and the communication module 24 via O.

  When the navigation device 1 is activated, the CPU of the control circuit 24 reads out and executes a boot program, an operating system (hereinafter referred to as OS) from the ROM, and performs hardware control and process management based on the OS. Processes that operate on the OS include a menu program, a destination setting program, a route search program, a map display program, and other programs.

  If the CPU of the control circuit 24 needs to specify the current position in the execution of these programs, it is based on a signal for specifying the current position output from the sensors 12 to 15 included in the position detector 11. The current position is calculated. At that time, since the outputs from the various sensors 12 to 15 have errors of different properties, the current position in the CPU of the control circuit 24 is specified in a complementary manner using a plurality of sensors. .

  In the following, the operation in which the CPU reads and executes the program will be described as the operation of the executed program itself.

  The menu program displays various programs that run on the OS hierarchically according to the function and purpose of the program, and a selection icon is displayed as a menu. The menu program is associated with a selection icon that the user has confirmed to select. Start the program execution. Note that menu display is performed by outputting image data of the menu to the display device 20, and selection by the user is performed by a selection operation (cursor movement, depressing a confirmation button, etc.) on the input device 17 or the remote controller 22 and the control circuit 24. It detects based on the signal input into.

The destination setting program is a program for setting the destination, and causes the display device 20 to display the display device 20 to prompt the user to input the destination. As a result, the user inputs the destination using the input device 17 or the remote controller 22. Based on the above, the above setting is realized by storing the destination in the RAM of the control circuit 24.

  As a method for setting the destination, there are facility search, 50-sound search, address search, position designation by scrolling, and the like. For example, when the destination setting is performed by searching for 50 sounds, the destination setting program receives the character string of the name of the destination by the user, and the point information (preliminarily included in the map data of the map data input device 16 ( The facility having the name is searched from the location name and the location information of the location), and the facility corresponding to the result of the search is set as the destination.

  The route search program automatically selects an optimum route from the current position to the destination set by the destination setting program, and causes the display device 20 to display the selected route as a guide route. A Dijkstra method or the like is known as a method for setting an optimum route.

  The map display program includes a vehicle current position mark based on the specified current position information, map data read using the map data input device 16 or the external memory 19, and additional data such as a guidance route formed by the route search program. Overlaid on the display surface of the display device 20.

  Next, a route calculation process by the control circuit 24 will be described with reference to FIG. FIG. 3 is a flowchart chart showing route calculation processing by the control circuit 24 of the navigation device 1. The control circuit 24 starts the process shown in FIG. 3 when the destination setting program is started by a user operation.

  First, the destination is set according to the operation of the user input device 17 or the remote controller 22 (step 100). Specifically, the display device 20 is displayed to prompt the user to input the destination, and as a result, the destination is displayed on the control circuit 24 based on the input of the destination using the input device 17 or the remote controller 22 by the user. Store in RAM.

  Next, the current position of the vehicle is obtained based on various signals input from the position detector 11 and map data is read from the map data input unit 16 to determine whether the current position of the vehicle is within the parking lot site. Based on this, it is determined whether or not the current position of the vehicle is in the parking lot (step 102).

  Here, if it is determined that the current position of the vehicle is in the parking lot (YES in step 102), whether or not the block data relating to the parking lot where the vehicle is located is stored in the storage medium of the map data input device 16 or not. Based on the above, it is determined whether or not there is section data in the parking lot (step 104).

  Here, when section data relating to the parking lot where the vehicle is located is stored in the storage medium of the map data input device 16, it is determined that there is section data in the parking lot (determined as YES in step 104), and the position of the vehicle Set the exit of the parking lot to be used as a waypoint. Specifically, the exit of the parking lot where the vehicle is located is stored in the RAM of the control circuit 24 as a waypoint. In addition, when there are a plurality of exits in the parking lot, one exit among the plurality of exits is set as a waypoint. (Step 106).

  Next, the route calculation of the route from the current position of the vehicle to the destination set in step 100 is performed using the exit set in step 106 as a transit point. For the inside of the parking lot, a route calculation is performed by considering a passable portion such as a taxiway as a road (step 108), and an optimum route is determined from the calculated routes. In the present embodiment, the route having the shortest distance among the calculated routes is determined as the optimum route.

  Next, it is determined whether another exit exists in the parking lot. Specifically, based on whether there is an exit different from the exit set as the waypoint in step 106, it is determined whether there is another exit in the parking lot (step 110).

  Here, when an exit different from the exit set as the waypoint in step 106 exists in the parking lot, it is determined that another exit exists in the parking lot (determined as YES in step 110), and the other exit is set as the waypoint. The process proceeds to step 106, and the processes in steps 108 and 110 are repeated. When there are a plurality of other exits, the process of step 106 is performed using one exit among the other exits as a waypoint. Thus, the process of step 106-step 110 is repeated with respect to all the exits of a parking lot, and each optimal route is decided.

  In step 110, if there is no exit different from the exit set as the waypoint, it is determined that there is no other exit (determined as NO in step 110), and all optimum routes determined by route calculation are displayed. It displays on the display screen of the apparatus 20 (step 112), and a route calculation process is complete | finished.

  Further, in step 104, when the partition data related to the parking lot where the vehicle is located is not stored in the storage medium of the map data input device 16, it is determined that there is no partition data in the parking lot (determined as NO in step 104). Based on the current position of the vehicle (coordinates) and the position of the parking lot exit (coordinates), a route calculation of a straight line connecting the current position of the vehicle and the exit of the parking lot where the vehicle is located was performed. The result is stored in the RAM of the control circuit 24. If there are a plurality of exits in the parking lot, a straight route connecting the current position of the vehicle and one of the plurality of exits with a straight line is calculated (step 130).

  Next, route calculation of the route from the exit set as the departure point in step 130 to the destination set in step 100 is performed (step 134), and the route that becomes the shortest route among the calculated routes is determined as the optimum route. To do.

  Next, it is determined whether another exit exists in the parking lot. Specifically, it is determined whether another exit exists based on whether an exit different from the exit set as the waypoint in step 106 exists in the parking lot (step 136).

  Here, when an exit different from the exit set as the departure point in step 132 exists in the parking lot, it is determined that another exit exists (determined as YES in step 136), and the processing of step 130 is performed for the other exits. To repeat the processing of steps 132, 134, and 136. When there are a plurality of other exits, the process of step 130 is performed for one of the other exits. Thus, the process of step 130-step 136 is repeated with respect to all the exits of a parking lot, and each optimal route is decided.

  For example, as shown in FIG. 4, when a vehicle is parked in a parking lot where exits 1 to 3 exist, the route 1 to the destination with the exit 1 as the departure point and the purpose with the exit 2 as the departure point Each optimum route of the route 2 to the ground and the route 3 to the destination starting from the exit 3 is determined.

  If there is no exit in the parking lot that is different from the exit set as the departure point in Step 136, it is determined that there is no other exit (NO in Step 136), and all the optimal routes calculated by the route are displayed. The information is displayed on the display screen of the device 20 (step 138), and the route calculation process is terminated.

  FIG. 5 shows a display example of the route in step 138. As shown in the drawing, the routes 1 to 3 from the current position of the vehicle to the exit 1 to the exit 3 are connected by straight lines. Thus, by displaying each route from the exit 1 to the exit 3 in a straight line, the exit direction is shown to the user.

  In addition, when a route is displayed on the display screen of the display device 20 by the above-described route calculation process, a display for allowing the user to select a guide route for route guidance from the routes displayed on the display screen of the display device 20 is displayed. Based on the designation of the guidance route using the input device 17 or the remote controller 22 by the user as a result, the route guidance is performed according to the route designated as the guidance route.

  If it is determined in step 102 that the current position of the vehicle is not in the parking lot (NO in step 102), a route calculation from the current position of the vehicle to the destination set in S100 is performed (step 120). The route determined by the route calculation is displayed on the display screen of the display device 20 (step 122), and the route calculation process is terminated.

  As described above, the control circuit 24 calculates the route of each route between all the exits of the parking facility and the destination, and displays all the calculated routes on the display device 20. The route from can be displayed.

  For example, the user can easily exit from other vacant exits while avoiding crowded exits, and can avoid congestion at the parking lot exits.

  Further, when a plurality of optimum routes are displayed on the display screen of the display device 20, a display for allowing the user to select a guidance route for route guidance from among the optimum routes displayed on the display screen of the display device 20 is displayed. Based on the designation of the guidance route using the input device 17 or the remote controller 22 by the user as a result, the route guidance can be performed according to the route designated as the guidance route.

  In the control circuit 24, the part for obtaining the current position of the vehicle based on various signals from the position detector 11 corresponds to the position detection means, and the part for calculating the route to the destination corresponds to the route calculation means. The portion for displaying the calculated route on the display screen of the display device 20 corresponds to the display means, and the portion for determining whether or not the map data of the parking facility where the vehicle is located is included in the map data. The part that designates the guide route in accordance with the user's operation of the input device 17 or the remote controller 22 corresponds to the guide route designation means, and the part that guides according to the designated guide route corresponds to the guide means.

  In addition, this invention is not limited to the said embodiment, Based on the meaning of this invention, it can implement with a various form.

  For example, in FIG. 5 of the above-described embodiment, an example in which each route from the current position of the vehicle to the exit 1 to the exit 3 is displayed as a straight line is shown. However, as shown in FIG. You may make it display an exit direction with the arrow. Thus, by displaying the exit direction with an arrow, even when the vehicle is parked in a large parking lot where the direction of the exit is difficult to understand, the user can recognize all the exit directions at a glance.

  Further, in FIG. 5 of the above-described embodiment, an example is shown in which the line type is changed for each exit, but the line type may be the same and the color may be changed for each exit.

  Also, by using the external communication device 23, for example, by receiving VICS information transmitted from an optical beacon, a radio beacon, etc., the situation of the road outside the parking lot is acquired, and the road outside the parking lot is congested for each exit The situation or the like may be displayed by characters.

  In addition, the map data stores various information such as intersection data indicating the presence or absence of traffic lights and traffic regulations (no right turn exits). Based on this map data, traffic control outside the parking lot (no right turn exits) and traffic lights Road conditions such as presence / absence may be acquired and displayed in characters for each exit of the parking lot. FIG. 7 shows a display example of the state of the road outside the parking lot for each exit. The user can acquire the state of the road outside the parking lot on the display screen as shown in FIG. 7 and determine the exit to exit.

  Moreover, in the said embodiment, the display which makes a user select the guidance route for route guidance from the route displayed on the display screen of the display apparatus 20 is displayed on the display apparatus 20, As a result, the input device 17 by a user or Although an example of performing route guidance according to a route designated as a guide route based on designation of a guide route using the remote controller 22 has been shown, all the routes are displayed on the display device 20, and the vehicle is specified by moving the vehicle. When the vehicle reaches the exit, the route including the exit that the vehicle has reached may be automatically determined as a guide route, and the display of other routes may be deleted. In this case, it is possible to prevent the user from referring to “other route” by mistake.

  In addition, parking lots are not only those that exist alone, but also those that exist in the theme park or factory premises, for example. In the case of parking lots provided on such sites, the theme parks and factory sites are used as parking facilities, and the entrances and exits (eg, the main gate, east gate, west gate, etc.) of these sites are displayed as the entrances to the parking lot. May be.

It is a figure which shows the structure of the navigation apparatus which concerns on one Embodiment of this invention. It is explanatory drawing about the division data in a parking lot. It is a flowchart chart which shows the route calculation process by a control circuit. It is explanatory drawing about the example of the route calculation of a recommended route. It is a figure which shows the example of a display of a recommendation path | route. It is a figure which shows the example of a display of a recommendation path | route. It is a figure which shows the example of a display of a recommendation path | route.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Navigation apparatus, 11 ... Position detector, 12 ... Geomagnetic sensor,
13 ... Gyroscope, 14 ... Distance sensor, 15 ... GPS receiver,
16 ... Map data input device, 17 ... Input device, 18 ... Audio output device, 19 ... External memory,
20 ... Display device, 21 ... Remote control sensor, 22 ... Remote control, 23 ... External communication device,
24: Control circuit.

Claims (6)

A navigation device for searching for a route to a destination,
Current position detecting means for detecting the current position;
Determining means for determining whether or not the current position detected by the current position detecting means is in a parking facility;
When the determination means determines that the current position is in a parking facility, route calculation means for calculating a route for each route from all exits of the parking facility to the destination;
And a display means for displaying all the routes calculated by the route calculating means. A determination means for determining presence / absence of partition data of the parking facility;
The route calculation means performs route calculation of a straight route that connects each of the current position and all the exits of the parking facility with straight lines when the determination means determines that there is no section data of the parking facility. The navigation device according to claim 1. The navigation device according to claim 2, wherein the display unit displays all exit directions in the parking facility with arrows based on the straight route calculated by the route calculation unit. Receiving means for receiving a signal indicating a road condition outside the parking facility;
The said display means displays the condition of the road outside the said parking facility with a character for every exit based on the signal which shows the road condition outside the said parking facility received by the said receiving means, The Claim 1 thru | or 3 characterized by the above-mentioned. The navigation device according to any one of the above. A determination means for determining presence / absence of partition data of the parking facility;
The route calculation means performs route calculation for each route from the current position to the destination from the parking facility exit when it is determined by the determination means that there is section data of the parking facility. The navigation device according to claim 1. A guidance route designating unit that allows the user to designate a guidance route for route guidance from among all the routes displayed by the display unit;
The navigation apparatus according to claim 1, further comprising: a guide unit that guides according to the guide route specified by the guide route specifying unit.

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