JP4807635B2 - Navigation device - Google Patents

Description

  The present invention relates to a navigation device, for example, a candidate display when searching for a destination.

2. Description of the Related Art Navigation devices that search for a route to a set destination point or stop-off point and provide it to drivers are widely used. Conventionally, various techniques for facilitating an input operation of a destination (destination) in such a navigation apparatus have been proposed.
For example, in Patent Document 1, when the search operation based on the input condition is interrupted and the destination input operation is interrupted and the screen is switched to another screen, the search before the interrupt is performed when the destination input operation is resumed. A technique for displaying a screen has been proposed. In this way, by displaying the search screen before interruption, it is possible to save the trouble of re-inputting the narrowing-down conditions.
JP 2002-250636 A

The search conditions for searching for a destination are, for example, conditions (such as names (acronyms) and addresses (location areas) where the contents do not change over time (hereinafter referred to as static search conditions). ), Depending on the current location of the vehicle, the set route, and the like, there are conditions (hereinafter referred to as dynamic narrowing conditions) whose contents change over time.
In the navigation device described in Patent Document 1, the search screen before interruption is uniformly displayed regardless of whether the input narrowing condition is a static narrowing condition or a dynamic narrowing condition. It is configured.
Therefore, as before, regardless of the static / dynamic narrowing conditions, if the search screen before suspension is displayed at the time of restart, it will be displayed again if the dynamic narrowing conditions were set before suspension. Cannot be reflected in the search results.
Therefore, if the dynamic narrowing condition was set before the interruption, the search had to be performed again from the beginning.

  Therefore, an object of the present invention is to display a more appropriate target candidate.

(1) In order to achieve the above object, in the first aspect of the present invention, a receiving unit that receives an input of a narrowing condition, a narrowing unit that narrows down target candidates based on the received narrowing condition, A display means for displaying the narrowed target candidates; an interruption means for interrupting the narrowing process when an interruption request is detected; and a history storage means for storing a history of the received narrowing conditions before the interruption; A route setting means for setting a travel route to a specific point, and a current state corresponding to a dynamic narrowing condition included in the narrowing condition stored in the history storage means when a restart request is detected during the interruption As information , current state information acquisition means for acquiring travel route information corresponding to a travel route condition in which the area along the travel route set by the route setting means is a narrowing target range, and stored in the history storage means Narrowing down And history, that narrow the candidates from said acquired travel route information, to provide a navigation apparatus characterized by comprising resuming resuming means a narrow-down process, the.

  According to the present invention, the current condition information corresponding to the dynamic refinement condition in the refinement condition history is obtained, and the narrowing process is performed by narrowing down the target candidates from the refinement condition history and the obtained present situation information. By restarting, more appropriate target candidates can be displayed.

Hereinafter, a preferred embodiment of the state evaluation apparatus of the present invention will be described in detail with reference to FIGS. 1 to 7.
(1) Outline of Embodiment In the navigation device, when setting a specific point (destination point) such as a destination, a transit point, and a stop-off point, the candidate sites of this destination point are narrowed down based on various narrowing conditions, The destination point to be set is determined from the narrowed search result, that is, the candidate list.
Narrowing conditions for narrowing down destination candidates depend on, for example, static narrowing conditions that do not change the contents over time, such as name and address, and the current location of the vehicle and the set route. There is a dynamic narrowing condition in which the contents change over time.

  In the navigation device according to the present embodiment, when the process is interrupted during the destination point setting process, that is, while the destination candidate narrowing process is being performed, the narrowing condition history is displayed. Store in the history information storage device. Thereafter, when the process is resumed, the narrowing-down result is obtained from the history information storage device. At this time, if the dynamic narrowing condition is included in the history of the narrowing condition, the narrowing result is obtained after re-acquiring the current position information at the time of restart instead of the stored current position information. When restarting, the re-search result (destination candidate) is displayed.

(2) Details of Embodiment FIG. 1A is a diagram showing a configuration of the navigation device 1 in the present embodiment.
As shown in FIG. 1A, the navigation device 1 includes a CPU 11, a ROM 12, a RAM 13, an input device 14, an output device 15, a current position detection device 16, an information transmission / reception device 17, an information storage device 18, and a history information storage device 19. Etc.
The CPU 11 is a central processing unit that controls the navigation device 1 according to various programs and data stored in the ROM 12, RAM 13, information storage device 18, history information storage device 19, and the like.
The ROM 12 is a read-only memory in which basic programs and parameters for causing the navigation device 1 to function are stored.
The RAM 13 is a storage area that functions as a work area for the CPU 11, and temporarily stores data being processed, for example, input narrowing condition data.

The input device 14 is a device that instructs the CPU 11 to perform navigation processing at the user's will, such as a destination (address, telephone number, coordinates on a map, etc.), a passing point, a stop point, a search condition, a narrowing condition, etc. It is a device for inputting information, route guidance request requests, and the like.
FIG. 1B is a diagram illustrating an appearance example of the display device 20 having an information input / output function.
In the present embodiment, the input device 14 is configured by the display device 20 shown in FIG. 1B, but may be configured by a remote controller such as a jog dial.

As shown in FIG. 1 (b), the display device 20 displays various menu screens such as a destination setting screen and a map screen around the current location, and pointing directly by touching the display screen (display) with a finger. A touch panel (touch screen) 21 is provided.
An escutcheon 22 that functions as a frame for fixing the touch panel 21 is provided on the outer peripheral edge of the touch panel 21.
In the upper area of the escutcheon 22, a destination setting key 23 and a map key 25 constituted by push buttons (hard keys) that are physically present are provided.

The destination setting key 23 is a key for causing the touch panel 21 to display a screen for setting a destination, a waypoint, a stopover point, and the like (hereinafter referred to as a destination) when performing a route search by the navigation device 1.
When the user presses the destination setting key 23, even if another screen (for example, a map screen around the current location) is displayed on the touch panel 21, the destination setting screen (forcibly) The destination setting menu screen) can be displayed on the touch panel 21.

The map key 25 is a key for causing the touch panel 21 to display a map screen around the current location.
Even when another screen (for example, a destination setting screen) is displayed on the touch panel 21 when the user presses the map key 25, the map screen around the current location is forcibly displayed on the touch panel 21. Can be displayed.
That is, when the user presses the map key 25 while performing a search for a destination on the destination setting screen, the destination setting process is interrupted.

  Returning to the description of FIG. 1A, the output device 15 displays the processing results of the CPU 11 such as input information from the input device 14, route guidance information, destination setting screen, map screen around the current location, various menu screens, and the like. It is a device that outputs. In the present embodiment, the output device 15 is configured by the display device 20 shown in FIG. 1B, but a speaker for outputting the route guidance by voice and a printer for printing out the processing data are separately provided. May be.

The current position detection device 16 is for detecting the current position (absolute coordinate value composed of latitude and longitude) of the vehicle on which the navigation device 1 is mounted, and is a satellite that measures the position of the vehicle using an artificial satellite. A GPS receiver for acquiring information from a use positioning system (GPS) is provided.
Note that the current position detection device 16 may include a geomagnetic sensor, a gyro sensor, a vehicle speed sensor, and the like that detect geomagnetism and determine the direction of the vehicle as a device that supplements the current position detection by the GPS receiver.

  The information transmission / reception device 17 uses a satellite-based positioning system (GPS) to obtain current position, date, time information, etc., and receives traffic information, etc. using FM multiplex broadcasting, radio wave beacons, optical beacons, etc. By using a VICS information receiving device for obtaining, a mobile phone, a personal computer, etc., it is composed of an information center (for example, ATIS) and a data transmitting / receiving device for bidirectionally communicating information with other vehicles.

The information storage device 18 is an external storage device that stores a navigation program and data, and includes, for example, a CD-ROM, a DVD-ROM, and the like, and includes, for example, a destination search processing program, a route search program, a route guide program, and the like. Data and data used in processing of each program are stored.
As data stored in the information storage device 18, for example, search data used for route search (destination data, registration point data, road data, genre-specific data, etc.), other data for guidance / display (route guidance) Various data such as guidance data used when performing the display, display data used when displaying the map, map matching data used when detecting the current position, and the like are stored.
When setting the destination, the history information storage device 19 inputs input information (specified conditions) of static narrowing conditions and dynamic narrowing conditions selected (input) by the user via the input device 14 (touch panel 21). Information) is read from the RAM 13 when the destination setting process is interrupted, and is stored as history information.

Next, the operation of the narrowing-down process in this embodiment will be described.
First, the transition state of the screen displayed on the navigation device 1 will be described.
FIG. 2A is a diagram showing an example of a main menu screen for destination setting.
When the destination setting key 23 is pressed by the user, a main menu screen for destination setting is displayed on the touch panel 21.
As shown in FIG. 2 (a), destination narrowing condition options are displayed on the destination setting main menu screen.
That is, the navigation device 1 includes, for example, “name narrowing”, “address narrowing”, “genre narrowing”, “phone number narrowing”, “memory point narrowing”, “Other methods” refinement is displayed. These narrowing conditions are all static narrowing conditions. The static narrowing condition indicates a condition in which the content does not change even when time elapses.

“Name narrowing” indicates narrowing down based on characters included in the name of the destination name, such as the initial name of the destination.
“Address narrowing” indicates narrowing based on an address (area) where the destination exists.
“Narrow down genre” refers to the genre to which the destination building (facility) belongs, for example, eat / drink (restaurant), buy / rent (shop), stay (accommodation), see / play (tourism / theme park) ) And so on.
“Filtering telephone numbers” indicates filtering based on the telephone number of the destination.
“Memory point narrowing” indicates narrowing based on points registered in the past.

Further, as shown in FIG. 2A, a previous operation call key 24 is provided on the main menu screen for destination setting.
The previous operation call key 24 is a key for instructing to resume the destination setting process from the time before the interruption when the destination setting process is interrupted in the middle.
When the destination setting process is interrupted, the narrow-down conditions stored in the RAM 13 are stored in the history information storage device 19. Then, when the previous operation call key 24 is pressed, the destination narrowing condition stored as history information in the history information storage device 19 is read (called), and the current information such as current location information is reflected. The result of the condition is displayed.
In this embodiment, for example, when a key for performing other processing such as a map key 25, a TV key for displaying a TV image on the touch panel 21, or a DVD key for displaying a DVD image is pressed, the destination is set. Processing is interrupted. Further, since the navigation device 1 is configured not to accept an input during traveling, the destination setting process is interrupted when the vehicle starts traveling.

The previous operation call key 24 has an active state (a state in which an operation can be accepted) and an inactive state. When the main menu screen is displayed by pressing the destination setting key 23, it is determined whether or not the destination setting process is being interrupted. If the history information of the narrowing-down conditions exists in the history information storage device 19, it is determined that the interruption is in progress, and the previous operation call key 24 becomes active.
On the other hand, if no history information exists, the previous operation call key 24 is in an inactive state if it is not suspended. Even when the current status information cannot be acquired during the interruption, the previous operation call key 24 is in an inactive state.
For example, when it is impossible to obtain current status information, if the route is narrowed down while narrowing down the search target based on the travel route, the route is set by deleting the destination during the suspension. Applicable when it is canceled (erased).
When a process that makes it impossible to acquire a travel route during suspension is performed, such as destination deletion, the CPU 11 is configured to delete history information of narrowing-down conditions stored in the history information storage device 19. Therefore, the previous operation call key 24 is in an inactive state.

The user selects (touches) a desired static narrow-down condition from these static narrow-down condition options displayed on the touch panel 21. Then, the input screen for the destination narrowing process is activated, and the narrowing conditions can be input.
FIG. 2B is a diagram showing an example of a narrowing condition input screen in the name narrowing condition.
When name narrowing is selected by the user on the main menu screen for destination setting, a character input screen for inputting a destination name (reading name) as shown in FIG. Is displayed.
The user operates the character input screen displayed on the touch panel 21 to input the destination name (all or a part), and after the input operation is completed, presses the “complete” key on the screen (touch). )
Then, the input character string, for example, “Aishin” is input as a static narrowing condition (name narrowing condition).

FIG. 2C is a diagram illustrating an example of the search result of the name narrowing condition.
When search processing is performed based on the input character string, the search result is displayed on the touch panel 21.
As shown in FIG. 2C, the name narrowing condition search result display screen displays the number of facilities that match the name narrowing condition keyword “aishin” and the matching facility list. A facility name that cannot be displayed in one screen can be displayed by operating a scroll bar displayed on the touch panel 21.

In the navigation device 1 according to the present embodiment, when the destination candidates are not sufficiently narrowed down by the narrowing-down process based on the name narrowing conditions, the destination candidates can be further narrowed down based on other conditions.
For example, when the user presses (touches) the “squeeze by area” key on the name refinement condition search result display screen shown in FIG. 2C, a refinement process based on the area is executed. .

FIG. 3A is a diagram showing a selection screen for the area to be narrowed down.
When the “squeeze by area” key is operated, as shown in FIG. 3A, a selection screen for the area to be narrowed down is displayed by tab.
On the selection screen for the area to be narrowed down, tabs for selecting screens for “address narrowing”, “area narrowing”, and “narrowing around” are displayed.
The “address narrowing” tab shows a setting screen for a narrowing target area based on an address (administrative district).
The “Region narrowing down” tab shows a setting screen for a narrowing target area based on the region.
The “peripheral narrowing down” tab shows a setting screen for a narrowing target area based on a specific point.

For example, when a “peripheral narrowing” tab is selected on the screen for selecting a narrowing target area, a specific setting screen (detailed setting screen) for the narrowing target area is displayed on the touch panel 21.
As shown in FIG. 3 (a), the detailed setting screen for the target area includes, for example, “all areas”, “current location”, “previous map”, “destination” as options for the target area. "Nearby" is displayed.
“All Areas” indicates a key for canceling the narrowing setting (current screen) of the narrowing target area.
“Area around current location” indicates a key for narrowing down facilities existing within a radius Rkm (for example, 3 km) from the current location.

“Previous map” indicates a key for narrowing down facilities existing in the area of the map previously displayed on the touch panel.
“Around the destination” is a key that is displayed only when a travel route is set in advance and a transit point or a stop point is set. The radius Rkm from the end point (destination) of the set route The key for narrowing down the facilities which exist in the range (for example, 3 km) is shown.
Note that the value of the radius R for setting the narrowing range can be arbitrarily set.
In this way, as the narrowing-down conditions displayed on the narrowing-down target area selection screen, not only the static narrowing-down conditions, but also the contents change over time, such as narrowing down based on the current location in the “current location” Dynamic filtering conditions are set.

FIG. 3B is a diagram showing an example of a map screen for setting the current location.
In the selection area selection screen, for example, when the current location surrounding key is pressed, the current location periphery as shown in FIG. 3B is shown based on the current location information acquired from the current position detection device 16. A map screen is displayed on the touch panel 21.
When the “set” key on the screen is pressed (touched) from the current location setting screen, the position of the setting point (cross display) on the map screen is set as the current location (stored in the RAM 13).

FIG. 3C is a diagram showing an example of a narrow search result around the current location.
When the current location is set, the number of facilities existing in the range of the radius Rkm from the current location and the facility list as shown in FIG.
When the “narrow down by area” key shown on the screen of FIG. 3C is pressed, the selection screen for the area to be narrowed down shown in FIG. The target area can be set. When the “narrow by genre” key shown on the screen of FIG. 3C is pressed, the screen shifts to a genre narrowing search setting screen described later.

FIG. 4A is a diagram showing an example of a map screen around the current location (interruption screen).
When the map key 25 is pressed during the destination setting process, the destination setting process is interrupted, and a map screen around the current position in the traveling vehicle as shown in FIG. Is displayed.
FIG. 4B is a diagram illustrating an example of a narrow search result (resume screen) around the current location.
If the destination setting key 23 is pressed while the destination setting process is interrupted, a destination setting main menu screen shown in FIG. 2A is displayed. In this case, since the history information of the narrow-down condition exists in the history information storage device 19, the previous operation call key 24 is actively displayed on the main menu screen.
Then, when the resumption of destination setting processing is instructed (requested) by pressing the previous operation call key 24 from the destination setting main menu screen, the current location at the time of resumption as shown in FIG. The number of facilities existing within the radius Rkm and the facility list are displayed on the touch panel 21.

Comparing the narrow search result (when restarting) shown in FIG. 4B with the narrow search result shown before FIG. 3C (before interruption), it can be seen that the contents are slightly different. This is because the current location changes while the destination setting process is interrupted.
That is, in the present embodiment, even if the current location moves while the destination setting process is interrupted, the destination search processing is resumed (returned) based on the current location after the move. The refined search result can be displayed.

FIG. 5A is a diagram showing an example of an input screen for a narrowing condition in the genre narrowing condition.
In addition, when the user selects genre narrowing on the destination setting main menu screen shown in FIG. 2A, a narrowing condition input screen as shown in FIG. Is displayed.
As shown in FIG. 5A, choices of destination genres are displayed on the genre narrowing-down condition input screen. Note that genre names that cannot be displayed in one screen can be displayed by operating a scroll bar displayed on the touch panel 21.

FIG. 5B is a diagram illustrating an example of an input screen for a narrowing condition in the genre narrowing condition.
The user selects a desired genre displayed on the touch panel 21, for example, a “buy / rent” genre, and presses (touches) a “complete” key on the screen after the input operation is completed.
Then, the selected genre, for example, “buy / rent” is input as a static narrowing condition (genre narrowing condition).

FIG. 5C is a diagram showing an example of the search result of the genre narrowing condition.
When search processing is performed based on the input genre, the search result is displayed on the touch panel 21.
As shown in FIG. 5C, the number of facilities that match the genre narrowing condition “buy / rent” and the matching facility list are displayed on the display screen of the search result of the genre narrowing condition. A facility name that cannot be displayed in one screen can be displayed by operating a scroll bar displayed on the touch panel 21.

In the navigation device 1 according to the present embodiment, when the destination candidates are not sufficiently narrowed down by the narrowing-down process based on the genre narrowing conditions, the destination candidates can be further narrowed down based on other conditions.
For example, when a “consider along route” key is pressed (touched) by the user on the search result display screen of the name narrowing condition shown in FIG. 5C, the currently set travel route (route) ) Based on () is executed.
The route narrowing condition for narrowing down the search target based on the currently set travel route is a dynamic narrowing condition.
However, here, a specific travel route is set in another process in the navigation device 1, and in the destination setting process, a route destination in the middle of the travel route, such as a route point or a stop point, is set as the destination. Assume that The route destination has a property different from the travel destination (end destination) on the travel route.

FIG. 6A is a diagram showing an example of a narrow search result around the currently set travel route.
When the “consideration along route” key is operated, the number of facilities existing in the range of the distance Rkm from the travel route and the facility list are displayed on the search result display screen as shown in FIG. The Note that the value of the distance R for setting the narrowing range can be arbitrarily set.
Again, when the map key 25 is pressed during the destination setting process, the map screen around the current location shown in FIG. 4A is displayed, and the destination setting process is interrupted.
FIG. 6B is a diagram illustrating an example of a narrowed search result (screen at restart) along the route.
If the destination setting key 23 is pressed while the destination setting process is interrupted, a destination setting main menu screen shown in FIG. 2A is displayed. In this case, since the history information of the narrow-down condition exists in the history information storage device 19, the previous operation call key 24 is actively displayed on the main menu screen.
When the previous operation call key 24 is pressed from the destination setting main menu screen, that is, when the destination setting process is resumed, the setting is made at the time of resumption as shown in FIG. The number of facilities existing in the range of the distance Rkm from the traveling route and the facility list are displayed on the touch panel 21.

Comparing the narrow search result (when restarting) shown in FIG. 6B with the narrow search result shown before FIG. 6A (before interruption), it can be seen that the contents are slightly different. This is because the setting contents of the travel route are changed in another process in the navigation device 1 while the destination setting process is interrupted.
That is, in the present embodiment, even when the setting of the travel route is changed while the destination setting process is interrupted, after the change is made when the destination search process is resumed (at the time of return). The search result based on the setting of the travel route can be displayed.

FIG. 7 is a flowchart showing a procedure of destination setting processing based on the narrowing-down conditions.
The CPU 11 monitors whether or not the destination setting key 23 of the display device 20 shown in FIG. 1B has been pressed (step 10). Here, the determination is made based on the presence / absence of an operation signal of the destination setting key 23.
When the destination setting key 23 is not pressed (step 10; N), the CPU 11 continues to monitor the pressing of the destination setting key 23 in step 10.
On the other hand, when the destination setting key 23 is pressed by the user (step 10; Y), the CPU 11 accepts the destination setting key 23, for example, the main destination setting as shown in FIG. A menu screen is displayed on the touch panel 21 (step 11).
At the time when the destination setting key 23 is pressed, if the history information of the narrowing condition exists in the history information storage device 19, the previous operation call key 24 on the main menu screen becomes active, and the history information storage device 19. In the case where there is no history information on the narrowing condition, the previous operation call key 24 becomes inactive.

Next, the CPU 11 determines whether or not an instruction to resume the destination setting process has been issued by pressing (operating) the previous operation call key 24 on the main menu screen (step 12).
Specifically, it is determined whether or not the previous operation call key 24 in the active state has been operated on the main menu screen displayed by pressing the destination setting key 23.
Here, based on the presence / absence of an operation signal from the previous operation call key 24, it is determined whether or not an instruction to resume the destination setting process has been issued.
In the destination setting main menu screen displayed in step 11, if the previous operation call key 24 is in an inactive state, the previous operation call key 24 cannot be operated. The determination process is not performed, and the process proceeds to step 13 as it is.
When the previous operation call key 24 has not been pressed (step 12; N), the CPU 11 performs a process of accepting a narrowing condition described below (step 13).

The user selects (touches) the desired narrow-down condition from the narrow-down condition choices on the main menu screen for destination setting displayed on the touch panel 21.
The CPU 11 detects an operation signal of the selected narrowing condition, thereby accepting selection of the narrowing condition, and displays a specific condition input screen corresponding to the selected narrowing condition on the touch panel 21.
For example, when name narrowing is selected, the screen shown in FIG. 2B is displayed. When genre narrowing is selected, the screen shown in FIG. Displayed as a screen.

The user operates the input screen displayed on the touch panel 21 and inputs a narrowing condition desired for search.
Then, the CPU 11 receives the input narrowing condition and stores the accepted narrowing condition in the RAM 13.
The narrowing conditions accepted here are not limited to the narrowing conditions selected from the main menu screen.
For example, the area to be narrowed down that is input when the area is narrowed down that is executed when the “squeeze by area” key is pressed from the name narrowing search result screen shown in FIG. It is accepted as a target narrowing condition.
Further, for example, when the “consideration along route” key is pressed from the genre narrowing search result screen shown in FIG. The route narrowing specification (route narrowing condition) to be performed is also accepted as the narrowing condition to be searched.

Next, the CPU 11 determines whether or not the received narrowing condition is a dynamic narrowing condition (step 14).
When the received narrowing condition is a dynamic narrowing condition (step 14; Y), the CPU 11 acquires current status information necessary for the search based on the accepted dynamic narrowing condition (step 15).
When the narrowing-down condition is, for example, “area around current location” based on the current location, the CPU 11 acquires coordinate information of the current location from the current position detection device 16 as current status information.
In addition, when the narrowing-down condition is, for example, route narrowing around the currently set travel route as a narrowing target area, the CPU 11 acquires information on the currently set travel route as the current state information. To do.
On the other hand, when the received narrowing condition is not the dynamic narrowing condition (step 14; N), that is, when the accepted narrowing condition is the static narrowing condition, the CPU 11 proceeds to the process of step 16.

Then, the CPU 11 executes a search target narrowing process based on the received narrowing condition, and displays the search result on the touch panel 21 (step 16).
For example, when narrowing down (name narrowing) based on the character string “Aishin”, the CPU 11 selects destination candidates corresponding to the name narrowing condition “aishin” as destinations stored in the information storage device 18. A search is performed from the data, and the search result shown in FIG.
For example, when performing narrowing (genre narrowing) based on the genre “buy / rent”, the CPU 11 selects destination candidates corresponding to the genre “buy / borrow” from the destination data stored in the information storage device 18. The search is performed, and the search result shown in FIG.

Further, for example, when performing narrowing (area narrowing) based on the area “current location vicinity”, the CPU 11 identifies a narrowing target area based on the acquired current location information, and selects destination candidates corresponding to this specific area. The destination data stored in the information storage device 18 is searched. Then, the search result shown in FIG.
For example, when the currently set travel route (route narrowing) is performed, the CPU 11 specifies a narrowing target area based on the acquired travel route information, and information on destination candidates corresponding to this specific area The destination data stored in the storage device 18 is searched. Then, the search result shown in FIG.

Next, the CPU 11 determines whether or not a specific facility is selected from the search result (destination candidate list) displayed on the touch panel 21 and the facility is set as the destination (step 17).
When the specific facility is set as the destination (step 17; Y), the CPU 11 returns to the main routine.
On the other hand, when the specific facility is not set as the destination (step 17; N), the CPU 11 determines whether or not the destination setting process is interrupted (step 18).
Here, whether or not the operation is interrupted based on the presence / absence of an operation signal of an interrupt key for instructing to interrupt the destination setting process, for example, a key for performing other processes such as the map key 25, the TV key, and the DVD key. Judgment is made.

When the destination setting process is not interrupted (step 18; N), when the operation signal of the interrupt key is not detected, the CPU 11 returns to step 13 and continues to accept the narrowing condition.
On the other hand, when the destination setting process is interrupted (step 18; Y), when the operation signal of the interrupt key is detected, the CPU 11 determines the narrowing-down conditions received in the process of step 12 stored in the RAM 13. The data is stored in the history information storage device 19 as history information of the destination setting process (step 19), and then the process returns to step 10 to continue the determination of whether or not the destination setting key 23 is operated.
For example, when the map key 25 is pressed by the user, for example, the destination setting process is interrupted, and a map screen around the current location shown in FIG.
Here, as the history information of the destination setting process, the history of operation processing (operation history) of the touch panel 21 and the like are stored in the history information storage device 19 in addition to the narrowing-down condition data.
For example, on the display screen of the search result of the name narrowing condition shown in FIG. 2C, key operation information indicating that the “squeeze by area” key is pressed is also stored as the operation history.

When the user presses the destination setting key 23 again, the CPU 11 displays a main menu screen for destination setting.
Here, when there is history information of the narrowing conditions saved in the history information storage device 19 in the previous step 19, the previous operation call key 24 on the main menu screen is in an active state.
When the previous operation call key 24 on the main menu screen for destination setting is pressed (step 12; Y), that is, when resumption of the destination setting process is instructed, the CPU 11 stores the history information storage device 19. 1 is read out from the history information of the destination setting process stored in (Step 21) and stored in the RAM 13.

Then, the CPU 11 determines whether or not the narrowing condition read from the history information is a dynamic narrowing condition (step 22).
When the narrowing-down condition read from the history information is the dynamic narrowing-down condition (Step 22; Y), the CPU 11 acquires current status information necessary for the search based on the narrowing-down condition (Step 23).
The CPU 11 executes a search target narrowing process based on the narrowing conditions (step 24).
Subsequently, the CPU 11 determines whether or not all of the narrowing-down conditions have been read from the history information of the destination setting process stored in the history information storage device 19 (step 25).

When all the narrowing-down conditions have been read from the history information (step 25; Y), the CPU 11 displays the final state on the touch panel 21 (step 26), returns to step 17, and whether or not the destination has been set. Continue to make the decision.
Specifically, the CPU 11 displays, as a final state displayed on the touch panel 21, a narrowing result based on the above-described history information and a screen based on the operation history.
In addition, by considering the operation history, the destination setting process is performed in a state where no specific narrowing conditions are input, for example, in a state where only selection items are displayed as shown in FIG. Even in the case of interruption, the selection item screen can be displayed at the time of resumption.

As described above, according to this embodiment, when the destination setting process is interrupted and then restarted, the search result (processing result) before the interruption is not simply displayed again, but is executed before the interruption. When the dynamic search condition is included in the search condition, the current status information can be acquired again at the time of restart, and the search result based on the current status information acquired again can be displayed.
Therefore, for example, while the destination setting process is interrupted, for example, even if the current location changes or the travel route setting is changed, these changes in the current status are appropriately resumed. It can be reflected in the display contents at the time.
Thereby, the convenience of the destination setting process by the user can be further improved.

In the present embodiment, the previous operation call key 24 is configured to be provided as a software key on the main menu screen for destination setting, but the previous operation call key 24 is similar to the destination setting key 23 in the same manner. You may make it comprise with the push button (hard key) which exists physically.
In this way, when the previous operation call key 24 is configured with a hard key, the previous operation call key 24 can be operated without displaying the destination setting main menu screen. That is, even if the destination setting key 23 is not pressed, by pressing the previous operation call key 24, an instruction (request) to directly restart the destination setting process is issued from the interrupted state of the destination setting process. be able to.
Further, the previous operation call key 24 may be arranged on the main menu screen for destination setting, and a hard key may be arranged.

(A) is the figure which showed the structure of the navigation apparatus in this embodiment, (b) is the figure which showed the example of the external appearance of the display apparatus which has an input / output function of information. (A) is a figure which showed an example of the main menu screen of destination setting, (b) is a figure which showed an example of the input screen of the narrowing-down condition in name narrowing conditions, (c) is a name narrowing down It is the figure which showed an example of the search result of inclusion conditions. (A) is the figure which showed the selection screen of the area to narrow down, (b) is the figure which showed an example of the map screen for setting the present location, (c) is the refinement search result around the present location It is the figure which showed an example. (A) is the figure which showed an example of the map screen (screen at the time of interruption) around the present location, (b) is the figure which showed an example of the narrow search result (screen at the time of restart) around the present location. (A) is the figure which showed an example of the input screen of the narrowing condition in a genre narrowing condition, (b) is the figure which showed an example of the input screen of the narrowing condition in a genre narrowing condition, (c ) Is a diagram showing an example of a search result of genre narrowing conditions. (A) is the figure which showed an example of the refinement search result of the periphery of the driving route currently set, (b) is the figure which showed an example of the refinement search result (screen at the time of restart) of the periphery along a route. is there. It is the flowchart which showed the procedure of the setting process of the destination based on narrowing-down conditions.

Explanation of symbols

1 Navigation device 11 CPU
12 ROM
13 RAM
DESCRIPTION OF SYMBOLS 14 Input device 15 Output device 16 Current position detection device 17 Information transmission / reception device 18 Information storage device 19 History information storage device 20 Display device 21 Touch panel 22 Escussion 23 Destination setting key 24 Previous operation call key 25 Map key

Claims (1)

An accepting means for accepting an input of narrowing conditions;
Narrowing means for narrowing down target candidates based on the accepted narrowing conditions;
Display means for displaying the narrowed target candidates;
An interruption means for interrupting the narrow-down process when an interruption request is detected,
History storage means for storing a history of the accepted narrowing-down conditions before the interruption;
Route setting means for setting a travel route to a specific point;
Along with the travel route set by the route setting means as current status information corresponding to the dynamic narrowing condition included in the narrowing condition stored in the history storage means when a restart request is detected during the interruption Current state information acquisition means for acquiring travel route information corresponding to a travel route condition in which the region of
Resumption means for refining the narrowing-down process by narrowing down the target candidates from the history of narrowing-down conditions stored in the history storage means and the acquired travel route information ;
A navigation device comprising:

Images