JP3911393B2 - Navigation device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a navigation device, and more particularly to guide a travel from a departure point, a map, a preset destination, and data of own position detection to a destination, and to stop at a facility where you want to stop while traveling to the destination. The present invention relates to a navigation device that can provide guidance.
[0002]
[Prior art]
In general, a navigation device, for example, a car navigation device, can perform comfortable driving by guiding a travel route searched based on destination data, own vehicle position data, and road map data by voice or screen display. In this case, there is a case where a restaurant or the like is stopped for a meal on the way from the departure place to the destination.
[0003]
Specific operations for performing a search for performing route guidance related to this stop are mainly the first and second conventional examples described below.
[0004]
That is, as a first conventional example of a stop-by place search, there is an example in which a stop-off place is determined as shown in the flowchart of FIG. The search is started based on the vehicle position detection data and the map data, and the search is made to the destination. After obtaining the predicted arrival time data in step S3, the process proceeds to step S4 based on the predicted arrival time data. The operation to determine the stop point is started.
[0005]
In step S4, as in step S5, the user (driver) himself determines the own vehicle position at the desired stop time based on the estimated arrival time data, and selects one facility from a plurality of facilities existing in the vicinity. After determining the location where the vehicle is in the time zone where you want to eat and tentatively deciding the approximate location, in step S6 you can search for nearby facilities and determine which facilities to stop by and eat The search is initiated by selecting and registering the selected facility as a stopover.
[0006]
In this way, the search result obtained in step S6 is route-guided with voice and / or screen display in step S7, so that the driver is prompted to travel to the stopping facility.
[0007]
On the other hand, as a second conventional example of a stop-by place search, there is an example in which a stop-off place is determined as shown in the flowchart of FIG. 6, and traveling to a preset destination is performed (step S8). In the meantime, the current time obtained in step S11 is compared with the desired stop time in step S9. If the current time does not reach the desired time (in the case of no), the process returns to step S8 and the vehicle travels. If the current time has reached the desired time (if yes), the process proceeds to the next step S12.
[0008]
In addition, it is left to a user (driver | operator) judgment how long the driving | running | working by this step S8 shows as shown to step S10.
[0009]
If YES in step S9, the operation proceeds to the next step S12 to start a stop point.
[0010]
In step S12, when the current time approaches the desired time, the user (driver) himself / herself determines the position of the vehicle and selects one facility from a plurality of facilities existing in the vicinity. After determining the vicinity of the vehicle in the belt and tentatively deciding the approximate position, in step S13, a search for nearby facilities is performed to select which facility to stop and eat. The search is initiated by registering the facility as a stopover.
[0011]
In this way, the search result obtained in step S13 is route-guided with voice and / or screen display in step S14, thereby prompting the driver to travel to the stop-off facility.
[0012]
A stop-by facility is searched by the operation as described above in the first or second conventional example, and at the same time, the stop-by location is determined based on the user's own judgment, and the corresponding stop-off facility is determined. Driving is encouraged by the driver.
[0013]
[Problems to be solved by the invention]
A conventional search device for a stop-by place in a navigation device such as a car navigation device needs to perform a stop-by facility search at the user's own judgment when the desired stop time is approaching, which forces the user to perform complicated operations, and time Because there is a problem in safe driving because it forces driving that cares about, and searching for a stopping facility, it is required that the vehicle is stopped for safe driving, which is very much for the user There is a problem of forcing troublesome operations.
[0014]
In addition, it is possible to eliminate the annoyance described above by pre-setting and registering a stop-off place that will be running during the time to eat, but it can accurately predict traffic congestion It is difficult to do so, and it takes time to arrive at the stop, so it is necessary to clear the registration of the first stop and reset the new stop Because problems arise, it cannot be a complete solution.
[0015]
Therefore, the object of the present invention is to search for a facility that stops in the middle of a preset destination dynamically so that it can arrive at the facility at a desired stop time in response to traffic congestion, and to perform a complicated operation for the user. An object of the present invention is to provide a navigation device that can be performed without being forced.
[0016]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the navigation apparatus according to the present invention employs a characteristic configuration as described below.
[0017]
(1) The type of facility that can guide the travel route based on the destination data, the vehicle position data, and the road map data, and that wants to drop in during the travel to the destination specified by the destination data. In a navigation device that can provide guidance for stopping at a facility requested by the type of stopping facility specified by the specifying facility,
The estimated vehicle position is updated based on the requested stop time data and the arrival prediction data set in advance by the desired stop time setting means, and the desired position is determined based on the updated estimated vehicle position and desired facility data. A navigation device that provides means for determining the presence or absence of a facility, obtains a temporary stop, and provides route guidance when it is OK for stop-by location information based on the vehicle position and current time data .
[0024]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. First, an overall circuit configuration of a car navigation apparatus as an application example of the present invention will be described with reference to FIG. 1. A CPU 1 for controlling the entire car navigation apparatus in a complex manner is provided. A memory 11 for storing program data for executing the program, fixed data required for executing the operation of the car navigation, and data for temporary use is incorporated.
[0025]
The display 2 connected to the CPU 1 is for displaying a travel route from the departure point to the destination in a lump or a partial enlarged display, and for displaying a setting screen and related data display for searching surrounding facilities. A touch switch is formed on the surface of the display screen.
[0026]
The optical disk 3 connected to the CPU 1 is used for reading data from a ROM of a CD or DVD in which various map data such as an entire map and a detailed map are recorded, and inputting map data to the CPU 1. The data receiving unit 5 connected to is used to obtain map data in place of or in addition to the map data from the optical disc 3, position information from communication satellites, traffic congestion from AM radio waves and FM radio waves, etc. Data is received by the antenna 4 and input to the CPU 1.
[0027]
The own vehicle detecting unit 6 connected to the CPU 1 detects the own vehicle position based on the position information obtained by the data receiving unit 5, and the setting / searching unit 7 connected to the CPU 1 is a restaurant search. a 71 a function of a function of the destination search 72, the function of the desired time 73, the guidance providing section 8 connected to the CPU1 has a function of its root guide 81, the function of the route change guidance 82, It has a function of a stopover guide 83.
[0028]
Therefore, the “stop facility type specifying means” for specifying the type of facility that is desired to stop during the travel to the destination searched by the destination search 72 is mainly constituted by the restaurant search 71 of the setting / search unit 7. The “desired desired time setting means” that preliminarily sets the desired stop time for the stop facility whose type is specified by the stop facility type specifying means is mainly composed of the desired time 73 and is in the vicinity of the desired stop time set at the desired time 73 The “search means” for searching for the relevant facility existing in the surrounding area of the vehicle position at the time is mainly composed of the destination search 72 of the setting / search unit 7.
[0029]
Further, the guidance notifying unit 8 provides “guidance means” that provides guidance to the stopping facility searched by the setting / search unit 7 as route guidance 81, route change guidance 82, and stop-by location guidance 83 at a time near the desired stop time. Composed.
[0030]
The operation of searching for a stop in the car navigation apparatus configured as described above will be described with reference to the flowcharts shown in FIGS. 2 to 4. First, the stop location condition setting performed in step S15 in FIG. As shown in the detailed flowchart of FIG. 3, when the setting operation is started, the desired facility is set in step S16, that is, the type of facility that is desired to stop during the travel to the destination is specified. Then, a restaurant is selected, and the desired facility is registered in step S18.
[0031]
Step S17, which is executed after step S16, selects the desired time to stop at the already registered desired facility and registers it as the desired time 73 in step S19. In this way, setting and registration are performed. The desired facility and the desired time are stored in the memory 11 of the CPU 1.
[0032]
Then, returning to FIG. 2, the process proceeds to step S20, where the search to the destination is started, and traveling toward the destination is performed in step S22 based on the already obtained data of the estimated arrival time (step S21). In step S26, the stop-by location guidance OK is determined.
[0033]
In the operation that proceeds from step S20 to step S22 via step S22, the current time data (step S25) and the vehicle position data (step S24) are always monitored during the travel in step S22, and at the same time, step S21 is performed. This is performed based on the result of the stoppage determination in step S23 based on the estimated arrival time data.
[0034]
Details of step S23 are formed as shown in the flowchart of FIG. 4 through relay points (a), (b), and (c) described for the convenience of drawing creation. In step S28, the estimated own vehicle position is determined based on the estimated arrival time data of the relay point (a) and the desired stop time data (step S29). Is the estimated own vehicle position changed in the next step S30? If there is no change (if no), the process returns to step S22 via the relay point (c), step S22 is continued, and if there is a change in step S30 (if yes). The process proceeds to the next step S31, where the estimated vehicle position is updated, and the updated data is sent to step S26 via the relay point (b) as the estimated vehicle position data of step S36.
[0035]
At the same time, update data from step S31 is sent to step S32, and based on the desired facility data in step S33, the process proceeds to step S34. If the desired facility is not found (in the case of no), the user is notified of the content in step S38, and the voice notification by the guidance notification unit 8 and the screen display by the display 2 are made at the same time. Thus, the process returns to step S22 via the relay point (c), and step S22 is continuously executed.
[0036]
If it is determined in step S34 that there is a desired facility (if yes), the process proceeds to step S35, where the setting and search are performed to change to a temporary stop, and the calculated temporary stop data is obtained in step S37. To the step S26 via the relay point (b), and the determination in the step S26 is performed again.
[0037]
Then, if it is determined that the stop-by place guidance is OK in the determination made in step S26 (if yes), the process proceeds to step S27, and the route guidance in which traveling to the stop-off place is performed by voice guidance and / or screen display is performed. As a result, the driver is prompted to travel to the stop-off facility.
[0038]
In addition, this form is an example of specifying the type of stop facility that you want to drop in while traveling to the destination, for example, a restaurant, but specifies the type of stop facility that you want to stop by and also specifies the name of the facility If it is possible to drop in at the facility when the desired time is reached, it will be set as it is, and if it is difficult to stop at the facility due to traffic congestion, etc. By providing alternative facility setting means for setting / registering an alternative facility existing in the surrounding area of the vehicle position at the time as a stop-by facility, more detailed travel guidance can be performed.
[0039]
【The invention's effect】
As is clear from the above description, the navigation device according to the present invention stops the vehicle at the time when the desired stop time is approaching in order to search for a stop-off like a conventional car navigation device, or at the user's own discretion. There is no need to search for a stop-in facility, and it is possible to search for a stop-off place automatically, without forcing the user to perform complicated operations, and forcing troublesome operations for the user without forcing time-sensitive driving. There is no force at all.
[0040]
In addition, even if there is a change in the traffic congestion situation, driving to facilities in the surrounding area is urged following the change, so that a predetermined task (meal or break) can be completed at a desired time.
[0041]
Therefore, according to the present invention, it is possible to search for a facility that stops in the middle of a preset destination dynamically so that the facility can dynamically respond to traffic congestion and arrive at the stopping facility at a desired stopping time. A navigation device that can be performed without being forced can be provided.
[Brief description of the drawings]
FIG. 1 is a block circuit diagram showing an overall circuit configuration of a navigation device according to an embodiment of the present invention.
FIG. 2 is a flowchart for explaining a stop-by location search operation of the navigation device shown in FIG. 1;
FIG. 3 is a flowchart showing details of step S15 shown in FIG. 2;
FIG. 4 is a flowchart showing details of step S23 shown in FIG.
FIG. 5 is a flowchart for explaining the operation of a first conventional example of a stopover search.
FIG. 6 is a flowchart for explaining the operation of a second conventional example of a stopover search.
[Explanation of symbols]
1 CPU
DESCRIPTION OF SYMBOLS 11 Memory 2 Display 3 Optical disk 4 Antenna 5 Data receiving part 6 Own vehicle detection part 7 Setting / search part 71 Restaurant search 72 Destination search 73 Desired time 8 Guidance notification part 81 Route guidance 82 Route change guidance 83 Stop location guidance

Claims (1)

It is possible to guide the travel route based on the destination data, the own vehicle position data, and the road map data, and to stop by the type of facility that the user wishes to stop by while traveling to the destination specified by the destination data. In a navigation device that can provide guidance for stopping at a facility that is requested by the facility type specifying means,
The estimated vehicle position is updated based on the requested stop time data and the arrival prediction data set in advance by the desired stop time setting means, and the desired position is determined based on the updated estimated vehicle position and desired facility data. A navigation device characterized in that means for determining the presence or absence of a facility is provided, a temporary stop is obtained, and route guidance is performed when the stop location guidance is OK from the vehicle position and current time data .

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