TWI400428B - Navigation device and its program - Google Patents

Description

Navigation device and its program

The present invention relates to a navigation device and a program for a navigation device.

In the past, there have been road sections that are limited to a specific time zone traveling on the shoulder. For example, in Taiwan, under the purpose of avoiding traffic jams on vehicles that are moving toward the exit of an expressway or an exit of a junction, there is a road that permits ordinary small cars to travel on the shoulders in a specific time zone. Interval. In the future, not only in Taiwan, but also in Japan and other countries, the measures shown above will be implemented.

The present invention has been made in view of the above circumstances, and an object thereof is to effectively notify a driver of a vehicle for a road section that is allowed to travel on a road shoulder limited to a specific time zone.

According to a first aspect of the present disclosure, a navigation device mounted on a vehicle includes: an acquisition component that acquires time zone information that has been permitted to travel on the road section in the road section; and In the section, the vehicle is present in front of the road section or the road section, and is a notification component that notifies the vehicle driver of the content of the road section that can be traveled by the road section.

As described above, the information of the time zone in which the permitted roadside travel is permitted is acquired in advance for the road section that is allowed to be limited to the specific time zone to travel on the shoulder. Next, the notification of the content of the road section that can be traveled by the road section is performed based on the existence of the own vehicle in the road section or the road section in the time zone. That is, the timing of the shoulder travel can be actually performed in the road section for notification. Therefore, the driver of the vehicle can be effectively notified of the shoulder travel.

Alternatively, the notification means may perform the foregoing notification based on the case where the vehicle is continuously driven for a reference time or longer than the reference speed. The reason why this is based on the purpose of permitting roadside driving is to avoid traffic jams entering and exiting the vehicle. Therefore, in the case where the vehicle can travel smoothly, it is not necessary to travel the shoulder. By the action as described above, it is possible to perform the notification of the roadside travel at the timing of the travel of the shoulder, thereby further improving the convenience of the user.

In addition, in the case where the vehicle continuously travels the reference time below the reference speed, the notification means may not perform the notification when the vehicle is located near the front end of the road section. When it is located near the front of the end point of the shoulder travel permitting section, even if the shoulder has been entered by the position, since the distance of the trailing shoulder is short, the advantage of traveling the shoulder is small. There is also a notification that the driver is urged to the shoulder at this point in time. When the driver wants to move his or her own vehicle to the shoulder according to the notification, there is a problem that the own vehicle hinders the other vehicles coming from the rear shoulder. Therefore, in this case, the safety can be improved without lowering the convenience by not allowing the permission to travel the shoulder.

According to a second aspect of the present disclosure, a program for controlling a navigation device mounted on a vehicle includes: an acquisition command for obtaining a time zone information in which a road section has been permitted to travel in a road section; and In the time zone, the vehicle is present in front of the road section or the road section, and a notification command for notifying the vehicle driver of the content of the road section in the road section is notified.

Thereby, the driver of the vehicle can be effectively notified of the shoulder travel.

According to a third aspect of the present disclosure, a navigation device mounted on a vehicle is composed of: a position detector that detects a current position of the vehicle; a data component that reads and writes data; and a control circuit. The foregoing information includes: shoulder driving permission section information having information on the permission time and the permission section, and the control circuit determines whether the current time is the permission time, and the control circuit determines whether the distance from the current position of the vehicle to the permission section is The first reference distance, the control circuit determines whether the vehicle is traveling at a reference speed or lower for a reference time or longer, and the control circuit determines whether the distance from the current position of the vehicle to the end point of the permission section is the second reference distance, when the current time The distance from the current position of the vehicle to the permission section is the first reference distance during the permission period, and the distance between the current position of the vehicle and the end of the permitted section is When the second reference distance is used, the control circuit is paired Driver of the vehicle in the notification interval may permit the shoulder with the content.

Thereby, the driver of the vehicle can be effectively informed of the travel on the road shoulder.

(First embodiment)

An embodiment of the present invention will be described below. The hardware configuration of the vehicle navigation device 1 of the present embodiment is shown in Fig. 1 . The vehicle navigation device 1 includes a position detector 11, an image display device 12, an operation unit 13, a speaker 14, a map data acquisition unit 16, and a control circuit 17.

The position detectors 11 each have well-known sensors such as a geomagnetic sensor, a gyroscope, a vehicle speed sensor, and a GPS receiver, which are not shown, and are used according to the respective properties of the sensors. Information on the current position, direction, and speed of the particular vehicle is output to the control circuit 17.

The image display device 12 displays an image of the image signal output by the control circuit 17 to the user. For displaying an image, for example, a map centering on the current location is used. The operation unit 13 is composed of a plurality of mechanical switches provided in the navigation device 1 for a vehicle and an input device such as a touch panel that is repeatedly disposed on the display surface of the image display device 12, and is configured according to a mechanical switch according to the user. The touched signal of the touch panel or the touch panel is output to the control circuit 17.

The map data acquisition unit 16 is composed of a writable memory medium such as an HDD and a device for reading and writing data to the memory medium. The memory medium stores programs executed by the control circuit 17, map data for route guidance, and the like.

The map data contains equipment information and road data. The device data contains information indicating the name information of each device, location information, device type information, and the like. The road data system includes: information on the location (end point, intermediate location, etc.) of the link, end information, location information of the node, category information, and information on the connection relationship between the node and the link.

In addition, the map data includes information on the shoulder driving permission interval. The roadside driving permission section information is information about the roadside driving permission section. Here, the shoulder travel permission section will be described using FIG. 2 . As shown in Fig. 2, most of the roads are provided with a wide-width shoulder that the vehicle can pass at a position further toward the exit point 26 of the ramp 22 connecting the expressway 20 to the interchange (or the junction). The shoulder of the road is not allowed to drive under normal circumstances.

However, in order to avoid traffic jams on the main highway 20, there will be a case where a small-sized vehicle directed toward the exit point 26 is taken, and a measure of driving only on the shoulder at a specific time zone is permitted. The section 32 that is permitted to travel the shoulder in a specific time zone is referred to as a shoulder driving permission section. In order to allow the user to recognize the shoulder driving permission section 32, it is conceivable, for example, to set a kanban 34 indicating the start of the shoulder driving permission section in the vicinity of the starting point 28 of the shoulder driving permission section 32, and to provide a representation in front of the end point 30 of the shoulder driving permission section 32. A kanban 36 having only a few contents left in the shoulder driving permission section is provided at the position of the end point 30, and a kanban 38 indicating the end of the shoulder driving permission section is set.

As shown in Fig. 3, the shoulder travel permission section information indicates the time zone in which the shoulder travel is permitted for each of the shoulder travel permission sections (the fronts of the exits A to E in the example of Fig. 3). According to the week, and the information of the starting point and the end point of the shoulder driving permission section.

Wherein, the shoulder driving permission section information is as described above, and may be formed by the information of the starting point and the end point node data and the shoulder driving permission time section according to each road driving permission section, or may be equivalent to the shoulder driving permission section. The link is recorded in relation to the information on the roadside permitting time zone.

The control circuit (equivalent to a computer) 17 is a microcomputer having a CPU, a RAM, a ROM, an I/O, and the like. The CPU executes a program for the vehicular navigation device 1 to be read by the ROM or the map data acquisition unit 16, and when the program is executed, the RAM, the ROM, and the map data acquisition unit 16 read the information. Information is written to the memory medium of the RAM and map data acquisition unit 16, and the position detector 11, the image display device 12, the operation unit 13, and the speaker 14 are sent and received.

The specific processing performed by the control circuit 17 by executing the program includes current position specific processing, induced path calculation processing, path guidance processing, and the like.

The current position-specific processing is based on signals from the position detector 11 using techniques such as map matching to specify the current position or orientation of the vehicle. The guidance route calculation process receives the input of the destination of the user by the operation unit 13, and calculates the process of the optimal guidance path from the current position to the destination.

In the route guidance processing, the map data acquisition unit 16 reads the map data, and outputs the calculated image of the guidance route, the destination, the destination, the current location, and the like on the map indicated by the map data to the image display device. 12. A process of outputting a guidance sound indicating a right turn, a left turn, or the like to the speaker 14 is used when necessary before the own vehicle has reached the guidance target point. Here, the guidance target location points to a location where the user needs detailed guidance, such as a left-right turn location, a branch location, and the like.

Further, in the route guidance processing, when the own vehicle comes to the front of the shoulder travel permission section and the predetermined condition is satisfied, the control circuit 17 performs notification of the content of the travel permitted by the shoulder travel permission section.

The path guidance processing will be described in detail below. In the route guidance processing, the control circuit 17 displays the map around the current position on the image display device 12 based on the information of the current position and the information of the map data, and superimposes the process of the induced route on the map.

Next, the control circuit 17 executes the program 100 shown in FIG. 4 every time a predetermined distance (for example, 2 km, 1 km) is approached in the vicinity of the guidance target point along the induction path. Here, the operation of the control circuit 17 will be described below by taking the road environment shown in FIG. 2 as an example.

In the execution of the program 100, the control circuit 17 first performs general guidance in step 103. The general guidance refers to a well-known process of displaying an enlarged view of the guidance target point, a driving display, and a sound guidance in the traveling direction.

Next, in step 105, the shoulder driving permission section information is read from the map data, and then in step 110, it is determined whether or not the guidance target point 26 on the guidance path 24 has been attached to the shoulder driving permission section 32, if it has been attached. Then, step 115 is performed, and if not, step 155 is performed.

The shoulder travel permission section for the guidance target location refers to a shoulder travel permission section in front of a predetermined distance from the guidance target location. In the example of "the front side within a predetermined distance from the guidance target point", one part of the link is separated along the induction path 24 (in the example of Fig. 2, it corresponds to the guidance target point 26). It is the front of the end of the shoulder-driving permission section.

In step 115, it is determined whether the current time is included in the shoulder travel time zone of the shoulder travel permission section 32 based on the shoulder travel permission section information. If yes, step 120 is performed. If not, step 155 is performed.

In step 120, it is determined whether the distance from the current position to the starting point 28 of the shoulder travel permitting section (or the end point of the own vehicle close to the link of the shoulder driving permission section) along the induction path 24 is the first reference distance. (for example, 300 to 500 m) or less, if it is equal to or less than the first reference distance, step 125 is performed next, and if it is not equal to or less than the first reference distance, step 155 is performed next.

In step 125, it is determined whether or not the own vehicle has a running continuous reference time (for example, three minutes) or more at a reference speed (for example, 30 km) or more. Next, if the result of the determination is affirmative, step 130 is followed, and if not, step 155 is followed.

In step 130, it is determined whether the distance from the own vehicle to the shoulder travel permission section end point 30 along the induction path 24 (or the end point of the own vehicle that is away from the link corresponding to the shoulder travel permission section) is the second reference distance. As described above, if it is equal to or greater than the second reference distance, step 135 is performed next, and if it is not equal to or greater than the second reference distance, step 155 is performed next.

The second reference distance may be a predetermined value (for example, 100 m) stored in advance, may be a value that varies according to various conditions, or may be a value that is randomly determined within a certain range. For example, the second reference distance may be a value corresponding to the total length of the shoulder travel permitting section (for example, 1/10, 1/5 of the total length).

In step 135, the driver is notified of the content of the shoulder travel. For example, the speaker 14 can be used to perform the guidance of the content that can be traveled by the shoulder and the content of the road that should be carefully driven.

Further, for example, as shown in the display screen example 50 of FIG. 5, the general guide enlarged image 52 displayed together with the general map image 51 may overlap the arrow 54 and the shoulder travel permit indicating the shoulder travel permission section. Information 55. Here, the shoulder travel permission information 55 includes a character indicating the content of the shoulder travel and a character indicating the shoulder travel permission time zone.

In step 140 subsequent to step 135, the distance to the end of the shoulder travel permission section end point 30 is equal to or less than the second reference distance (for example, 100 meters), and when the second reference distance is equal to or less than the second reference distance, step 145 is performed next. .

In step 145, the image display device 12 or the speaker 14 is used to guide the content of the end of the road travel by the portrait or the sound. For example, the sound guide of "100 meters further, the road shoulder section will end".

Next, in step 150, waiting until the own vehicle passes the exit point (i.e., the guidance target point) 26, the execution of the program 100 is ended at the passing time point, and the general display of the image display device 12 is completed at the same time. Guidance for guidance, guidance for roadside travel notifications. The processing content of step 155 is also the same as the processing content of step 150.

As described above, the control circuit 17 refers to the shoulder travel permission section information (refer to step 105) at the time of general guidance of the guidance target point (refer to step 103), and determines whether or not the guide target has been attached to the shoulder. Whether the permission section 32 (refer to step 110), whether the distance of the shoulder travel permission time zone of the shoulder travel permission section 32 (refer to step 115), and the shoulder travel permission section 32 to the start point 28 is within the first reference distance (Refer to step 120), whether the travel below the reference speed continues for a reference time or longer (refer to step 125), and whether the distance from the shoulder travel permitting section 32 to the end point 30 is equal to or greater than the second reference distance (refer to step 130). All the determination results are affirmative, that is, the shoulder travel notification is performed (refer to step 135).

Then, when the distance to the shoulder travel permit section end point 30 is equal to or less than the second reference distance (refer to step 140), the content of the completion of the shoulder travel permitting section 32 is notified (refer to the procedure). 145).

As described above, the vehicle navigation device 1 acquires information on the time zone in which the shoulder travel is permitted in the shoulder travel permission section for the shoulder travel permission section (corresponding to the road section), based on the time zone in the time zone. The vehicle is provided in front of the shoulder driving permission section or the shoulder driving permission section, and the driver of the vehicle is notified of the content that can be traveled by the shoulder in the shoulder driving permission section.

As described above, the information on the time zone in which the permitted road shoulder travels is acquired in advance for the shoulder travel permission section. Next, the notification of the content that can be traveled by the shoulder in the shoulder driving permission section is performed based on the self-vehicle in front of the shoulder driving permission section or the shoulder driving permission section in the time zone. That is, the notification is actually performed at the timing of the shoulder travel that can be performed in the shoulder travel permission section. Therefore, the driver of the vehicle can be effectively notified of the shoulder travel.

Further, the vehicle navigation device 1 performs the notification based on the fact that the own vehicle continuously travels for a reference time or longer at a reference speed or lower. The reason why this is based on the purpose of permitting roadside driving is to avoid traffic jams entering and exiting the vehicle. Therefore, in the case where the vehicle can travel smoothly, it is not necessary to travel the shoulder. By the action as described above, it is possible to perform the notification of the roadside travel at the timing of the travel of the shoulder, thereby further improving the convenience of the user.

Further, in the case where the own vehicle runs continuously for the reference time below the reference speed, the vehicle navigation device 1 does not have the own vehicle in the vicinity of the front side of the end point of the shoulder travel permission section in which the shoulder is permitted to travel. A notice that can be driven by the road.

When it is located near the front of the end point of the shoulder travel permitting section, even if the shoulder has been entered by the position, since the distance of the trailing shoulder is short, the advantage of traveling the shoulder is small. There will also be a notice that the promotion to the shoulder at this point in time will hinder the other vehicles coming from the rear of the road. Therefore, in this case, the safety can be improved without lowering the convenience by not allowing the permission to travel the shoulder.

(Other embodiments)

In the above-described embodiment, when the step 155 of the program 100 is executed (that is, when the shoulder travel notification is not performed), when the non-shoulder portion of the shoulder travel permission section is driven, the section can be notified by sound or the like. There is a section of the road section where the road section is currently permitted to travel. In this way, useful information can be provided to a driver who does not know that there is a shoulder driving permission section and a driver who does not understand the meaning of a kanban indicating that there is a shoulder driving permission section.

Further, the values of the first reference distance, the second reference distance, the reference speed, and the reference time may be appropriately set by the driver using the operation unit 13.

In addition, when the program 100 is executed, the control circuit 17 may determine whether the own vehicle is a normal small car after step 105, and if it is a normal small car, then step 110 is performed, and if it is not a normal small car, step 155 is performed.

As a result, the vehicle navigation device 1 does not perform the shoulder travel notification when the own vehicle is not a normal small vehicle. Therefore, in the case of a vehicle such as a large vehicle that is not allowed to travel in a time zone, it is not possible to perform a roadside driving notification.

The information on whether or not the own vehicle is a normal small car may be input by the driver using the operation unit 13 in advance, and the control circuit 17 may record the information in the memory medium of the map data acquisition unit 16.

Further, the information to be updated, such as the vehicle size information, is not limited to the memory medium of the map data acquisition unit 16, and may be stored in other memory media (for example, flashing) in which the data is continuously held even if the main power source for the navigation device 1 is stopped. Memory, EEPROM, backup RAM). In this case, the memory medium of the map data acquisition unit 16 may be a non-writable memory medium such as a DVD or a CD-ROM, and is not necessarily a writable memory medium such as an HDD.

Further, in the above-described embodiment, the functions realized by the control circuit 17 executing the program may be realized by using a hardware having such functions (for example, an FPGA in which the circuit is configured as a program).

The present invention is described with reference to the preferred embodiments, but it should be understood that the invention is not limited thereto. The invention also includes various modifications or variations within the equivalent scope. In addition, it is to be understood that various combinations and permutations, and other combinations and permutations which include only one element, or more, or less, are also within the scope or spirit of the invention.

1. . . Vehicle navigation device

11. . . Position detector

12. . . Portrait display device

13. . . Operation department

14. . . speaker

15. . . Traffic Information Receiving Department

16. . . Map data acquisition department

17. . . Control circuit

20. . . Highway trunk

twenty two. . . Ramp

twenty four. . . Induction path

26. . . Target location (export location)

28. . . starting point

30. . . end

32. . . Road shoulder permit

34. . . Kanban

36. . . Kanban

38. . . Kanban

50. . . Display screen example

51. . . Map portrait

52. . . General guide for enlarged portrait

54. . . Arrow

55. . . Road shoulder driving permission information

100. . . Program

103, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 155. . . step

The above and other objects, features and advantages of the present invention will become more apparent from Its illustration is:

Fig. 1 is a configuration diagram of a navigation device for a vehicle according to an embodiment of the present invention;

Fig. 2 is a view showing a road driving permission section in front of the exit point of the expressway entering the ramp;

Figure 3 is a diagram showing an example of information on the permission section of the road shoulder;

Figure 4 is a flow chart of the program executed by the control circuit;

Fig. 5 is a view showing an example of a display screen in the road travel permission section notification.

20. . . Highway trunk

twenty two. . . Ramp

twenty four. . . Induction path

26. . . Target location (export location)

28. . . starting point

30. . . end

32. . . Road shoulder permit

34. . . Kanban

36. . . Kanban

38. . . Kanban

Claims (4)

A navigation device mounted on a vehicle, comprising: an acquisition component that acquires time zone information that has been permitted to travel on a road shoulder in the road section; and, in the aforementioned time zone, in the road section or In the front of the road section, the vehicle is present, and the vehicle is notified to the vehicle driver of the content of the road section that can be traveled by the road section in the case where the vehicle is continuously driven for a reference time or longer. The navigation device according to claim 1, wherein the notification means is configured such that when the vehicle is continuously traveling at the reference time below the reference speed, if the vehicle is located near a front surface of the road section That is, the above notification is not made. A program for controlling a navigation device mounted on a vehicle, comprising: obtaining an acquisition command for time zone information in which a road section has been permitted to travel in a road section; and based on the time zone In the section or the road section, the vehicle is present in the front of the road section, and the vehicle is notified of the content of the roadside travelable by the vehicle driver in the case where the vehicle is continuously driven for a reference time or longer. A navigation device mounted on a vehicle, comprising: a position detector for detecting a current position of the vehicle; a map data acquisition unit for reading and writing data; and a control circuit; The foregoing information includes shoulder driving permission section information having information on the permission time and the permission section, and the control circuit determines whether the current time is the permission time, and then determines whether the distance from the current position of the vehicle to the permission section is the first. The reference distance is determined, and it is determined whether the vehicle is driven at a reference speed or lower for a reference time or longer, and then it is determined whether the distance from the current position of the vehicle to the end point of the permitted section is the second reference distance, and the current time is the permitted time. The distance from the current position of the vehicle to the permission section is the first reference distance, the vehicle is driven by the reference speed or less, and the distance from the current position of the vehicle to the end point of the permission section is the second reference distance. At this time, the control circuit notifies the driver of the vehicle of the content that can be traveled by shoulder in the permitted section.