JP2001116563A - On-vehicle navigation system and recording medium where processing program is recorded for it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an on-vehicle navigation system which allows a safe travel on a motorway, with no frequent observation of a screen by a driver. SOLUTION: An on-vehicle navigation system 1 comprises a guide course retrieving means 21 for retrieving a course to a destination which is inputted by a car driver, a car position analyzing means 22 for judging whether a car is travelling on a motorway if a motorway exists on the retrieved guide course, a motorway mode judging means 24 for switching to a simple display for the motorway if the car is judged to be traveling on the motorway, and a motorway information analyzing means 23 which, if the car is judged to be travelling on the motorway, detects an interchange to exit the motorway as a target interchange, and indicates the target interchange to a driver.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an on-vehicle navigation system for guiding a vehicle to a destination, and more particularly to an on-vehicle navigation system that enables a driver to drive safely without frequently looking at a screen when driving on a motorway. The present invention relates to a recording medium for recording a processing program in a navigation device and a vehicle-mounted navigation device.

[0002]

2. Description of the Related Art The structure of a conventional on-vehicle navigation device will be described with reference to FIG.

As shown in FIG. 7, a conventional in-vehicle navigation apparatus 101 includes an operation unit 102 for inputting information such as a destination and a waypoint and a setting by a driver, and an information and a command input by the operation unit 102. Operation analysis unit 1 that analyzes and processes
And an arithmetic processing unit 104 that controls the entire system and performs operations such as searching for a guidance route and analyzing the position of the own vehicle;
The navigation data necessary for calculation of the guidance route and the guidance data necessary for the guidance are recorded, and the map information storage unit 106 including the setting storage unit 105 for storing the setting by the driver, and the vehicle travels along the guidance route. Arrival time / required time calculation unit 107 for calculating the required time and arrival time at the destination, GPS receiver 108, direction sensor 1
09, a current position measurement unit 111 that receives information from the distance sensor 110 to determine the current position of the vehicle, a display control unit 113 that displays a guidance route setting screen and a route guidance screen on the display unit 112, and an arithmetic processing The voice data is converted into an analog signal in accordance with the guidance command from the
4 and a voice control unit 115 for outputting guidance voice.

[0004] Further, the arithmetic processing unit 104 includes a guidance route search means 121 for searching for a guidance route to a destination inputted by a driver of the own vehicle, and a guidance route search means 1.
When there is an automobile-only road on the guidance route searched by the user 21, the own-vehicle position analysis means 122 for determining whether or not the own vehicle is running on this automobile-only road, When it is determined that the vehicle is traveling, the vehicle-only road mode determination means 124 switches the display on the display unit 112 to the simplified display for the vehicle-only road.
And

[0005] In the vehicle-mounted navigation device 101, when the vehicle enters an exclusive road such as an expressway or a toll road, the own-vehicle position analysis means 122 determines whether the own vehicle Upon detecting that the vehicle has entered the road, the exclusive road mode determining means 124 reads the driver's settings from the setting storage means 105. When the exclusive road mode is not selected, a normal map display as shown in FIG. When the driver selects the motorway mode, the display is switched to a simplified display for the motorway as shown in FIG.

[0006]

However, in the above-described conventional on-vehicle navigation device, in the case of a normal map display as shown in FIG. Since the map is used, an interchange (a target interchange) that exits the exclusive road on which the vehicle is traveling is not displayed on the display unit 112 until the interchange approaches. Therefore, there is a problem that the driver must always pay attention to the display unit 112 even when the driver is traveling at high speed.

Similarly, in the simplified display for a motorway as shown in FIG. 9, only the preceding interchange or service area is displayed. For example, in FIG. 9, even if the Hamamatsu interchange 40 km away is the target interchange, what was displayed was the Fujieda interchange, the Yoshida interchange, etc. immediately before. Therefore, the driver cannot recognize until the target interchange is approaching, and the display unit 11
2 had to pay attention.

In addition, the conventional on-vehicle navigation device 10
In FIG. 1, although there is a display only for the expressway as shown in FIG. 9, there is no display exclusively for the city expressway such as the Tokyo Metropolitan Expressway, and when entering the city expressway from the expressway, the motorway exclusive road mode is selected. In this case, the display is switched to the map display as shown in FIG. Therefore, there is a problem that a driver cannot recognize an interchange or a junction when traveling on an urban highway.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a vehicle-mounted navigation device and a vehicle-mounted navigation system that enable a driver to drive safely without frequently looking at a screen when driving on a motorway. An object of the present invention is to provide a recording medium in which a processing program for a navigation device is recorded.

[0010]

In order to achieve the above object, an on-vehicle navigation device according to the first aspect of the present invention detects a current position of a vehicle and searches for a route to a set destination. An in-vehicle navigation device that guides the host vehicle along the route, and a guide route search unit that searches for a route to a destination set by a driver of the host vehicle; When there is an automobile-only road on the searched route, the own-vehicle position analyzing means for judging whether or not the own-vehicle is traveling on this exclusive-use road, When it is determined that the vehicle is traveling on the motorway, an exit exiting from the motorway is detected as a target interchange and the driver is instructed to instruct the driver. Characterized in that it comprises a vehicle-only road information analyzer.

According to the first aspect of the present invention, a destination interchange is instructed while driving on a motorway,
The driver does not need to see the guidance route on the map display displayed on the display means. Therefore, the driver can drive safely without paying attention to the display means until the target interchange.

According to a second aspect of the present invention, there is provided an on-vehicle navigation device for detecting a current position of a host vehicle, searching for a route to a set destination, and guiding the host vehicle along the route. A navigation device, wherein a guidance route search means for searching for a route to a destination set by the driver of the vehicle, and when there is a motorway on the route searched by the guidance route search means,
Own-vehicle position analyzing means for judging whether or not the own-vehicle is traveling on this exclusive road, and judging that the own-vehicle is traveling on the exclusive road by this own-vehicle position analyzing means. When it is determined that the vehicle is traveling on the vehicle-only road, the vehicle-only road mode determination device that switches the display of the display device to the simplified display for the vehicle-only road and the vehicle position analysis device. In this case, the system includes a motorway exclusive road information analyzing means for detecting an interchange exiting the motorway as a target interchange and instructing the driver of the target interchange.

According to the second aspect of the present invention, when the vehicle exclusive road mode is selected by the driver,
Since the display is switched to the simplified display for the motorway, the target interchange is highlighted and a voice instruction is given, so that it is easy to recognize the interchange and the service area. Therefore, the driver can drive without paying attention to the display means until the target interchange, and can drive safely.

According to a third aspect of the present invention, the vehicle-only road mode determining means of the vehicle-mounted navigation device switches to a simplified display dedicated to the city highway when the vehicle-only road is at the city highway.

According to the third aspect of the present invention, it becomes easy to recognize a junction or a destination interchange even when traveling on an urban highway, and the driver can drive to the destination interchange without paying attention to the display means. You can drive safely.

A recording medium in which a processing program is recorded in the vehicle-mounted navigation device according to the fourth aspect of the present invention detects a current position of the own vehicle, searches for a route to a set destination, and follows the route. Recording a processing program in an in-vehicle navigation device for guiding the host vehicle by using a guidance route search process for searching for a route to a destination set by a driver of the host vehicle; When there is an exclusive road on the route searched by the processing, the own vehicle position analysis processing for determining whether or not the own vehicle is traveling on the exclusive road for car, and the own vehicle position analysis processing When it is determined that the own vehicle is traveling on the motorway, the vehicle is to be interchanged to exit the motorway. Detected and as characterized by comprising a motorway information analyzing process of instructing the driver.

According to the fourth aspect of the present invention, a target interchange is instructed while driving on a motorway,
The driver does not need to see the guidance route on the map display displayed on the display means. Therefore, the driver can drive safely without paying attention to the display means until the target interchange.

The recording medium storing the processing program in the on-vehicle navigation device according to the fifth aspect of the present invention detects a current position of the own vehicle, searches for a route to a set destination, and follows the route. Recording a processing program in an in-vehicle navigation device for guiding the host vehicle by using a guidance route search process for searching for a route to a destination set by a driver of the host vehicle; When there is an exclusive road on the route searched by the processing, the own vehicle position analysis processing for determining whether or not the own vehicle is traveling on the exclusive road for car, and the own vehicle position analysis processing A vehicle that switches the display on the display means to a simplified display for a motorway when it is determined that the vehicle is traveling on the motorway. When it is determined that the vehicle is traveling on the motorway by the vehicle road mode determination process and the vehicle position analysis process, an interchange exiting from the motorway is detected as a target interchange. And an automobile exclusive road information analysis process for instructing the driver to perform an interchange.

According to the fifth aspect of the present invention, when the motorway mode is selected by the driver,
Since the display is switched to the simplified display for the motorway, the target interchange is highlighted and a voice instruction is given, so that it is easy to recognize the interchange and the service area. Therefore, the driver can drive without paying attention to the display means until the target interchange, and can drive safely.

In the vehicle-mounted navigation device according to the present invention, the vehicle-dedicated road mode determination processing of the recording medium on which the processing program is recorded is a simplified display dedicated to the city highway when the vehicle-dedicated road is a city highway. It is characterized by switching.

According to the sixth aspect of the present invention, it is easy to recognize a junction or a destination interchange even when traveling on an urban highway, and the driver can drive to the destination interchange without paying attention to the display means. You can drive safely.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a vehicle-mounted navigation device and a recording medium in which a processing program is recorded in the vehicle-mounted navigation device according to the present invention will be described with reference to the drawings.

First, a hardware configuration of the vehicle-mounted navigation device according to the present embodiment will be described with reference to FIG.

As shown in FIG. 1, an on-vehicle navigation device 1 according to the present embodiment includes an operation unit 2 for inputting information such as a destination and a waypoint and a setting by a driver. An operation analysis unit 3 that analyzes and processes commands; an operation processing unit 4 that controls the entire system and performs calculations such as searching for a guidance route and analyzing the position of the vehicle; and a navigation unit necessary for calculating the guidance route Data and guidance data necessary for guidance are recorded, and a map information storage unit 6 including a setting storage unit 5 for storing settings made by the driver, and a time required for traveling on the guidance route and a destination to the destination. An arrival time / required time calculation unit 7 for calculating an arrival time, and a current position measurement unit 1 for receiving information from the GPS receiver 8, the direction sensor 9, and the distance sensor 10 to determine the current position of the vehicle.
1 and a display section 12 for displaying a guidance route setting screen and a route guidance screen.
And a voice control unit 15 that converts voice data into an analog signal in accordance with a guidance command from the arithmetic processing unit 4 and drives a speaker 14 to output a guidance voice.

Further, the arithmetic processing unit 4 includes a guidance route searching means 21 for searching for a guidance route to the destination inputted by the driver of the own vehicle, and a guidance route searched by the guidance route searching means 21. When there is an exclusive motorway, the own vehicle position analyzing means 22 for judging whether or not the own vehicle is traveling on the exclusive motorway, and an interchange exiting the exclusive motorway on the guidance route is detected as a target interchange. And instruct the driver, and when in the motorway mode, display the target interchange
2 and a dedicated road information analyzing means 23 for guiding by voice and when it is determined that the vehicle is running on the dedicated road, the display on the display unit 12 is simplified for the dedicated road. And a vehicle-only road mode determining means 24 for switching the mode.

The arithmetic processing unit 4 includes an ordinary computer system including a CPU for performing various types of processing and storage means for storing instructions for the processing. Instructions and timing constraints of the respective processes of the guidance route searching means 21, the own vehicle position analyzing means 22, the exclusive car road information analyzing means 23, and the exclusive car road mode determining means 24 included in the arithmetic processing unit 4 are stored in the storage means. And if necessary C
It is loaded into the PU and executed.

When the guidance route from the current position to the destination is searched, the arrival time / required time calculation unit 7 determines whether the arrival time at the destination is in accordance with the driver's settings stored in the setting storage unit 5. Alternatively, either the required time to the destination is calculated and displayed on the display unit 12. Thus, the display of the arrival time and the required time can be appropriately switched according to the driver's need.

Next, a process of instructing a target interchange in the map display of the vehicle-mounted navigation device according to the present embodiment will be described with reference to the flowchart of FIG.

First, when a driver inputs information such as a destination and a waypoint via the operation unit 2 (S201), the information is analyzed by the operation analysis unit 3 and sent to the arithmetic processing unit 4. Then, a guidance route search is performed by the guidance route search means 21 of the arithmetic processing unit 4 (S202). The searched guidance route is displayed on the display unit 12 via the display control unit 13, and when there are a plurality of guidance routes, the driver selects the guidance route and determines the guidance route. When the own vehicle actually starts traveling on the guidance route, the current position measuring unit 11 displays the current position of the own vehicle on the display unit 12 based on information obtained from the GPS receiver 8, the direction sensor 9, and the distance sensor 10. indicate. Then, when the own vehicle travels on the guide route and enters an exclusive motorway such as an expressway or a toll road, the own vehicle position analyzing means 22 detects that the own vehicle has entered the exclusive motorway (S203). When the own vehicle position analyzing means 22 detects that the own vehicle has entered the exclusive road for automobiles, the exclusive road information analyzing means 23 for an automobile exits the exclusive exclusive road when the own vehicle runs on the guidance route. A target interchange) is detected (S204). Then, the vehicle exclusive road information analysis means 2
No. 3 displays the target interchange on the map display displayed on the display unit 12 (S205).
A voice will also guide you to the destination interchange. FIG. 3 shows an example of displaying the target interchange on the map display.

In this way, the target interchange is always displayed on the display unit 12 while the vehicle is traveling on the motorway, and a voice instruction is given when the target interchange approaches. Then, when the own vehicle arrives at the destination interchange and exits the exclusive road, the own vehicle position analyzing means 22 detects (S206), and based on the information, the exclusive road information analyzing means 23 ends the display of the destination interchange. (S207).

As described above, according to the on-vehicle navigation device of the present embodiment, the driver is instructed to perform the target interchange while driving on the motorway, so that the driver can view the map on the map displayed on the display unit 12. There is no need to see the guidance route. Therefore, the driver can drive the vehicle without paying attention to the display unit 12 until the target interchange, and can drive safely.

Next, referring to the flowchart of FIG. 4, a description will be given of a process of instructing a target interchange in the vehicle exclusive road mode by the vehicle-mounted navigation device of the present invention.

First, when the driver inputs information such as a destination and a waypoint via the operation unit 2 (S401), the information is analyzed by the operation analysis unit 3 and sent to the arithmetic processing unit 4. Then, the guidance route is searched by the guidance route searching means 21 of the arithmetic processing unit 4 (S402). The searched guidance route is displayed on the display unit 12 via the display control unit 13, and when there are a plurality of guidance routes, the driver selects the guidance route and determines the guidance route. When the own vehicle actually starts traveling on the guidance route, the current position measuring unit 11 displays the current position of the own vehicle on the display unit 12 based on information obtained from the GPS receiver 8, the direction sensor 9, and the distance sensor 10. indicate. Then, when the own vehicle travels on the guide route and enters an exclusive motorway such as an expressway or a toll road, the own vehicle position analysis means 22 detects that the own vehicle has entered the exclusive motorway (S403). When the own vehicle position analyzing means 22 detects that the own vehicle has entered the exclusive motorway, the exclusive car road information analyzing means 23 outputs an interchange that exits the exclusive motorway when the own vehicle travels on the guide route. Upon detecting the (purpose interchange) (S404), the vehicle-only road mode determination unit 24 determines whether the content preset by the driver and stored in the setting storage unit 5 has selected the vehicle-only road mode. (S405). When the vehicle-only road mode is selected, the vehicle-only road information analysis means 23 performs the operation shown in FIG.
Switch to simplified display for motorway as shown in
The target interchange is highlighted on the display unit 12 (S
406).

The highlighting means that the display of the target interchange (Hamamatsu IC in FIG. 5) is made larger than the display of the other interchanges (Kikugawa IC, Makinohara IC, etc. in FIG. 5), and the color of the target interchange is different from that of the other interchanges. Display in a color different from the interchange color. Furthermore, voice guidance of the target interchange is also provided.

When the motorway is an urban highway such as the Tokyo Metropolitan Expressway, the display is switched from the simplified display for the motorway shown in FIG. 5 to the display dedicated to the urban highway as shown in FIG.

This makes it easy to recognize junctions and destination interchanges even when traveling on an urban highway, and the driver can drive to the destination interchange without paying attention to the display unit 12, so that the driver can drive safely. Can be.

If the exclusive road mode is not selected in step S405, the exclusive road information analysis means 23 displays the target interchange on the ordinary map display screen without switching to the simplified display for the exclusive road. In addition to the display, the driver is also instructed by voice (S407).

When the vehicle exits the motorway, the vehicle position analysis means 22 detects (S408), and based on the information, the motorway information analysis means 23 executes the simplified display and the purpose for the motorway. The display of the interchange ends (S409).

As described above, according to the on-vehicle navigation device of the present embodiment, when the vehicle-only road mode is selected by the driver, the display is switched to the simplified display for the vehicle-only road and the target interchange is highlighted. Since the voice instruction is also given, it is easy to recognize the interchange and the service area. Therefore, the driver can view the display unit 12 until the destination interchange.
The driver can drive safely without paying attention to the vehicle.

A program for realizing each process of the above-described navigation device can be stored in a recording medium. By reading this recording medium by a computer system, the program is executed to control the computer. Meanwhile, each processing of the above-described in-vehicle navigation device can be realized. here,
The recording medium includes a device capable of recording a program, such as a memory device, a magnetic disk device, and an optical disk device.

[0041]

As described above, the on-vehicle navigation device and the recording medium on which the processing program is recorded in the on-vehicle navigation device of the present invention instruct the driver to perform a target interchange while driving on a motorway. Eliminates the need to see the guidance route on the map display displayed on the display unit. Therefore, the driver can drive without paying attention to the display unit until the target interchange, so that the vehicle can travel safely.

When the motorway mode is selected by the driver, the display is switched to the motorway-only simplified display, and the target interchange is highlighted and a voice instruction is given. It becomes easy to recognize. Therefore, since the driver can drive without paying attention to the display unit until the destination interchange, the driver can travel safely.

Further, when the motorway is an urban expressway, the display is switched to a simplified display dedicated to the urban expressway.
It becomes easy to recognize junctions and destination interchanges even when driving on an urban highway.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of a vehicle-mounted navigation device according to the present invention.

FIG. 2 is a flowchart illustrating a process of displaying a target interchange in the on-vehicle navigation device shown in FIG. 1;

FIG. 3 is a diagram showing an example of a guidance screen displaying a target interchange.

FIG. 4 is a flowchart for explaining display processing in a vehicle-only road mode in the vehicle-mounted navigation device shown in FIG. 1;

FIG. 5 is a diagram showing an example of a display screen for a motorway.

FIG. 6 is a diagram showing an example of a display screen dedicated to a city expressway.

FIG. 7 is a block diagram showing a configuration of a conventional in-vehicle navigation device.

FIG. 8 is a diagram showing an example of a conventional guidance screen.

FIG. 9 is a diagram showing an example of a conventional display screen for a motorway.

FIG. 10 is a diagram illustrating an example of a display screen when a conventional on-vehicle navigation device travels on an urban highway.

[Explanation of symbols]

 1, 101 in-vehicle navigation device 2, 102 operation unit 3, 103 operation analysis unit 4, 104 arithmetic processing unit 5, 105 setting storage unit 6, 106 map information storage unit 7, 107 arrival time / required time calculation unit 8, 108 GPS Receiver 9, 109 Orientation sensor 10, 110 Distance sensor 11, 111 Current position measurement unit 12, 112 Display unit 13, 113 Display control unit 14, 114 Speaker 15, 115 Voice control unit 21, 121 Guide route search means 22, 122 Own Vehicle position analysis means 23 Vehicle exclusive road information analysis means 24, 124 Vehicle exclusive road mode determination means

Continued on the front page F-term (reference) 2C032 HB22 HC08 HC30 HD03 HD11 HD21 2F029 AA02 AB01 AB07 AB09 AC01 AC02 AC04 AC06 AC18 5H180 AA01 BB15 FF04 FF05 FF22 FF25 FF27 FF32

Claims (6)

[Claims] 1. An in-vehicle navigation device that detects a current position of a host vehicle, searches for a route to a set destination, and guides the host vehicle along the route. A guidance route searching means for searching for a route to the destination set by the vehicle, and when there is a motorway on the route searched by the guidance route searching means, the vehicle is traveling on the motorway. Own vehicle position analyzing means for determining whether there is a vehicle, and when the own vehicle position analyzing means determines that the own vehicle is traveling on the exclusive vehicle road, an interchange for exiting the exclusive vehicle road is provided. An on-vehicle navigation device, comprising: an automobile-only road information analyzing means for detecting an interchange and instructing the driver. 2. An on-vehicle navigation device that detects a current position of a host vehicle, searches for a route to a set destination, and guides the host vehicle along the route. A guidance route searching means for searching for a route to the destination set by the vehicle, and when there is a motorway on the route searched by the guidance route searching means, the vehicle is traveling on the motorway. Own vehicle position analyzing means for judging whether or not there is, when the own vehicle position analyzing means determines that the own vehicle is traveling on the exclusive motorway, the display of the display means is displayed for the exclusive motorway. A vehicle-only road mode determining means for switching to a simplified display of: when the vehicle-position analyzing means determines that the vehicle is traveling on the vehicle-only road, Vehicle navigation apparatus interchanges leaving the expressway detected purposes interchange, characterized in that it comprises a motorway information analyzing means for indicating the purpose interchange the driver. 3. The vehicle-only road mode determining means,
3. The in-vehicle navigation device according to claim 2, wherein when the motorway is an urban highway, the display is switched to a simplified display dedicated to the urban highway. 4. A recording medium for recording a processing program in an in-vehicle navigation device for detecting a current position of an own vehicle, searching for a route to a set destination, and guiding the own vehicle along the route. A guide route search process for searching for a route to a destination set by the driver of the host vehicle; and Own vehicle position analysis processing for determining whether or not the own vehicle is traveling; and when the own vehicle is determined to be traveling on the automobile exclusive road by the own vehicle position analysis processing, A vehicle-exclusive road information analysis process for detecting an interchange exiting a motorway as a target interchange and instructing the driver. A recording medium on which a processing program for a navigation device is recorded. 5. A recording medium for recording a processing program in an in-vehicle navigation device for detecting a current position of an own vehicle, searching for a route to a set destination, and guiding the own vehicle along the route. A guide route search process for searching for a route to a destination set by the driver of the host vehicle; and An own vehicle position analysis process for determining whether or not the own vehicle is running, and when the own vehicle is determined to be running on the automobile exclusive road by the own vehicle position analysis process, a display is given. A vehicle-only road mode determination process for switching the display of the means to a simplified display for the vehicle-only road; and the own-vehicle running on the vehicle-only road by the own-vehicle position analysis process. When it is determined that the vehicle is in the vehicle, the vehicle exits the vehicle-exclusive road is detected as a target interchange, and the vehicle-exclusive road information analysis processing for instructing the driver to the target interchange is included. Recording medium on which the processing program is recorded. 6. The vehicle-dedicated road mode determination process includes:
6. The recording medium according to claim 5, wherein the display is switched to a simplified display dedicated to an urban highway when the motorway is an urban highway.