JP2005337719A - Navigation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a navigation device for causing a user to comprehend the progress of a travel. <P>SOLUTION: A ROM 3 is stored with a navigation program characterized by causing a computer to function as: a generation means for generating display data to display a guidance route from a guidance starting point to an objective point prior to re-search with a spot in the periphery of a present position taken as a way point by using data on a re-searched guidance route and travel record data; a calculation means for calculating already-spent travel time from starting time to present time by using the record data when the guidance route has been re-searched; a second generation means for generating display data for displaying the travel time calculated by the calculation means; a second calculation means for calculating an already-traveled distance from a starting position to the spot in the periphery of the present position by using the record data when the guidance route has been re-searched; and a third generation means for generating display data for displaying the already-traveled distance calculated by the second calculation means. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a navigation device for re-searching a route, and more particularly to a vehicle-mounted AV device with a navigation function, a mobile phone with a navigation function, and the like.

As a conventional navigation device, there is known a route guidance device provided with a route search processing unit for re-searching a route from the starting point to a destination point starting from the terminal point of the updated route connection link (for example, see Patent Document 1). reference).
Japanese Unexamined Patent Publication No. 2003-194561 (paragraph 0082, FIG. 4)

  However, in the conventional navigation device, when the route to the destination point is re-searched, the data related to the route searched for at the beginning of the departure is deleted, so the entire travel process from the starting point before the re-search to the destination point is deleted. There is a problem that the current travel situation cannot be grasped, that is, the user cannot grasp the progress of the travel.

  The present invention has been made to solve the conventional problems, and an object of the present invention is to provide a navigation device that allows a user to grasp the progress of a trip.

  The navigation device of the present invention displays a guide route from a guidance start point to a destination point before a re-search with a point around the current position as a transit point using data on the re-searched guidance route and travel history data. It has a configuration for executing a navigation program characterized by causing a computer to function as generation means for generating data.

  According to this configuration, when the guide route is re-searched, the guide route from the guidance start point to the destination point before the re-search using the points around the current position as a transit point is displayed. It can be grasped.

  The present invention generates display data for displaying a guide route from a guidance start point to a destination point before a re-search using a point around the current position as a transit point using data on the re-searched guide route and travel history data. By providing a navigation program characterized by causing a computer to function as the generating means, it is possible to provide a navigation device that has the effect of allowing the user to grasp the progress of the trip.

  The best mode for carrying out the route guidance apparatus according to the present invention will be described below with reference to FIGS.

  As shown in FIG. 1, a route guidance device 1 includes an input port 2 for inputting signals from various sensors, a read-only memory (hereinafter referred to as ROM) 3 for storing various programs such as a route guidance program, and the like. , A CPU (hereinafter referred to as CPU) 4 that executes various programs stored in the ROM 3, a random access memory (hereinafter referred to as RAM) 5 that stores processing results and input signals of the CPU 4, and a DVD A reader 7 that optically or magnetically reads various data stored on the disk 6 while rotating the disk 6 such as a ROM, a communication device 8 that is connected to a communication line and transmits / receives various data through the communication line, and a reading Various data read from the disk 6 by the machine 7 and various data received through the communication line by the communication machine 8 A hard disk drive (hereinafter referred to as HDD) 9 for storing data, a display 10 corresponding to the display means, the second display means, and the third display means for outputting an image using the processing result of the CPU 4, and the CPU 4 It is the structure provided with the speaker 11 which outputs a sound using the process result.

  The input port 2 includes a GPS receiver 12 that receives position data indicating the current position and time data indicating the current time from a GPS satellite, a vehicle speed sensor 13 that detects the speed of the vehicle, and a direction that detects the traveling direction of the vehicle. It is connected to the sensor 14 and inputs data from various sensors into a predetermined storage area of the RAM 5.

  The ROM 3 is a display for displaying a guidance route from a guidance start point to a destination point before a re-search using a point around the current position as a transit point using data on the guidance route re-searched and travel history data. Generating means for generating data; calculating means for calculating travel time from departure time to current time using travel history data when the guide route is re-searched; A second generating means for generating display data for displaying time; and a second generating means for calculating a travel distance from a starting point to a point around the current position using travel history data when a guide route is re-searched. A navigation unit that functions as a calculation unit and a third generation unit that generates display data for displaying the travel distance calculated by the second calculation unit; ® emissions program is stored. Of course, the navigation program may be stored in a readable / writable storage medium after being acquired by the communication device 9 through the communication line. The navigation program may be stored in a portable memory and read from the portable memory.

  The HDD 9 stores position data input to the RAM 5 in association with time data (hereinafter, data in which position data and time data are associated is referred to as travel history data). As shown in FIG. 2, the route guidance data 20 stored in the HDD 9 has a data structure including route search data 21 for route search and map data 22 called a map leaf. The map data 22 includes road layer data 23 for displaying road images.

  The operation of the navigation device 1 configured as described above will be described with reference to FIGS. First, the basic operation of the navigation device 1 will be described with reference to FIGS.

  As shown in FIG. 3, the CPU 4 executes the navigation program stored in the ROM 3 to determine whether or not the remaining travel distance, remaining travel time, guidance route, etc. are displayed on the display 10 (step S1). ). Here, the remaining travel time is a distance from the current position to the destination, and is calculated using the route search data 21 stored in the HDD 9. The remaining travel time is a time required to reach the destination point from the current position, and is a value depending on the remaining travel distance, the vehicle speed, and the like. For example, as shown in FIG. 4, the remaining travel time is displayed as “2 hours 30 minutes to the destination”, and the remaining travel distance is displayed as “150.2 km to the destination”. On the other hand, the guide route is displayed in a display mode that emphasizes the road corresponding to the guide route. For example, as shown in FIG. 4, the road corresponding to the guide route is highlighted with a thick solid line.

  When it is determined in step S1 that the guidance route is displayed (Yes in S1), the CPU 4 executes the navigation program stored in the ROM 3 to determine whether to search again for the guidance route. Determine (step S2). As a case where the guide route is searched again, there are a case where the current position is deviated from the guide route, a case where the user is instructed to search the guide route again, and the like.

  If it is determined in step S2 that the guidance route is to be searched again (Yes in S2), the CPU 4 executes the navigation program stored in the ROM 3 and stores the travel history data in the HDD 9 (step S3). . The travel history data is data indicating the traveled position and the time at this position.

  When the travel history data is stored, the CPU 4 executes the navigation program stored in the ROM 3 and re-searches for a guidance route from a point around the current position to the destination point (step S4). Data relating to the re-searched guidance route (hereinafter referred to as re-search data) is preferably stored in the HDD 9. Here, the points around the current position include a point in the traveling direction on the road that is currently running, a point designated by the user, and the like. Further, the current position itself may be a point around the current position.

  When the guide route is searched again, the CPU 4 executes a navigation program stored in the ROM 3 and performs a calculation process for calculating an existing travel distance that is a travel distance from the destination point to a point around the current position. (Step S5).

  When the calculation process is performed, the CPU 4 executes the navigation program stored in the ROM 3 to display a figure indicating the travel time calculated in the calculation process and a guidance route indicating the re-searched guidance route and the like. A generation process for generating display data to be performed is performed (step S6).

  When the generation process is performed, the CPU 4 executes the navigation program stored in the ROM 3 and displays the guidance route on the display 10 using the generation data generated by the generation process (step S7).

  When the guidance route is displayed, the CPU 4 executes the navigation program stored in the ROM 3 and displays a diagram showing the travel time and the travel distance on the display 10 using the generated data generated by the generation process ( Step S8). Specifically, as shown in FIG. 5, the travel time, the travel distance, the guide route from the guidance start point before the re-search to the current position (hereinafter referred to as the first guide route) and the re-searched guide route (hereinafter referred to as the first guide route) , Referred to as a second guide route).

  After determining that the guidance route is not searched again in step S2 (No in S2) or displaying the travel time and travel distance in step S8, the CPU 4 executes the navigation program stored in the ROM 3, It is determined whether or not the current position has reached the destination point (step S9).

  At this time, when it is determined that the guide route is not displayed (No in S1) or when it is determined that the current position has reached the destination point (Yes in S9), the processing by the navigation program ends. To do. On the other hand, if it is determined that the current position has not reached the destination point (No in S9), the processes from step S2 to step S9 are repeated.

  Next, a calculation process which is a characteristic operation of the navigation device 1 will be described with reference to FIG. As shown in FIG. 5, the CPU 4 executes the navigation program stored in the ROM 3 and reads the travel history data from the HDD 9 (step S21).

  When the travel history data is read, the CPU 4 executes the navigation program stored in the ROM 3 and calculates the travel time using the travel history data and the time data (step S22). Here, the travel time is a time obtained by subtracting the time at the departure point from the current time. The position corresponding to the departure point and the time at this position are indicated by the travel history data, and the current time is indicated by the time data received by the GPS receiver 12. That is, the travel time can be calculated using the travel history data and the time data.

  When the travel time is calculated, the CPU 4 executes the navigation program stored in the ROM 3 and stores travel time data indicating the travel time in the HDD 9 (step S23).

  When the travel time data is stored, the CPU 4 executes the navigation program stored in the ROM 3 and calculates the travel distance using the travel history data (step S24). The travel distance is the distance from the departure point to the current position. The position corresponding to the departure point is indicated by the travel history data, and the current position is indicated by the position data received by the GPS receiver 12. That is, the travel distance can be calculated using travel history data and time data.

  When the travel distance is calculated, the CPU 4 executes the navigation program stored in the ROM 3 and stores travel distance data indicating the travel distance in the HDD 9 (step S25).

  When the travel distance is stored, the CPU 4 executes the navigation program stored in the ROM 3 and reads the re-search data from the HDD 9 (step S26).

  When the re-search data is read, the CPU 4 executes the navigation program stored in the ROM 3 and calculates the remaining travel time using the re-search data (step S27).

  When the remaining travel time is calculated, the CPU 4 executes the navigation program stored in the ROM 3 and stores the remaining travel time data indicating the remaining travel time in the HDD 9 (step S28).

  When the remaining travel time data is stored, the CPU 4 executes the navigation program stored in the ROM 3 and calculates the remaining travel distance using the re-search data (step S29).

  When the remaining travel distance is calculated, the CPU 4 executes the navigation program stored in the ROM 3 and stores the remaining travel distance data indicating the remaining travel distance in the HDD 9 (step S30).

  Next, a generation process that is a characteristic operation of the navigation device 1 will be described with reference to FIGS. 5, 7, and 8. The CPU 4 executes the navigation program stored in the ROM 3 and reads travel time data from the HDD 9 (step S41).

  When the travel time data is read, the CPU 4 executes a navigation program stored in the ROM 3 to generate travel time display data for displaying the travel time indicated by the travel time data on the display 10. (Step S42). For example, as shown in FIG. 5, the travel time display data is data for displaying “1 hour 27 minutes from departure” on the display 10.

  When the travel time display data is generated, the CPU 4 executes the navigation program stored in the ROM 3 and stores the travel time display data in the HDD 9 (step S43).

  When the travel time display data is stored, the CPU 4 executes the navigation program stored in the ROM 3 and reads travel distance data from the HDD 9 (step S44).

  When the travel distance data is read, the CPU 4 executes a navigation program stored in the ROM 3 to generate travel distance display data for displaying the travel distance indicated by the travel distance data on the display 10. (Step S45). For example, as shown in FIG. 5, the travel distance display data is data for displaying “100.2 km from the departure point” on the display 10.

  When the travel distance display data is generated, the CPU 4 executes the navigation program stored in the ROM 3 and stores the travel distance display data in the HDD 9 (step S46).

  When the travel distance display data is stored, the CPU 4 executes the navigation program stored in the ROM 3 and reads the remaining travel time data from the HDD 9 (step S47).

  When the remaining travel time data is read, the CPU 4 executes the navigation program stored in the ROM 3 to generate remaining travel time display data for displaying the remaining travel time indicated by the remaining travel time data on the display 10. (Step S48). For example, as shown in FIG. 5, the remaining travel time display data is data for displaying on the display 10 “2 hours and 2 minutes to the destination”.

  When the remaining travel time display data is generated, the CPU 4 executes the navigation program stored in the ROM 3 and stores the remaining travel time display data in the HDD 9 (step S49).

  When the remaining travel time display data is stored, the CPU 4 executes the navigation program stored in the ROM 3 and reads the remaining travel distance data from the HDD 9 (step S50).

  When the remaining travel distance data is read, the CPU 4 executes the navigation program stored in the ROM 3 to generate remaining travel distance display data for displaying the remaining travel distance indicated by the remaining travel distance data on the display 10. (Step S51). For example, as shown in FIG. 5, the remaining travel distance display data is data for displaying on the display 10 “145.2 km to the destination”.

  When the remaining travel distance display data is generated, the CPU 4 executes the navigation program stored in the ROM 3 and stores the remaining travel distance display data in the HDD 9 (step S52).

  When the remaining travel distance display data is stored, as shown in FIG. 8, the CPU 4 executes the navigation program stored in the ROM 3 and reads the travel history data and the re-search data from the HDD 9 (step S53).

  When the travel history data and the re-search data are read, the CPU 4 executes the navigation program stored in the ROM 3 and the first guide route obtained from the travel history data and the second guide route indicated by the re-search data. The road layer data corresponding to is read from the HDD 9 (step S54).

  When the road layer data is read, the CPU 4 executes the navigation program stored in the ROM 3 and determines the display mode of the first guide route and the second guide route (step S55). For example, as shown in FIG. 5, it is determined that the first guide route is blinked and displayed with a thick dotted line, and the second guide route is determined to be displayed with a thick solid line. Of course, it may be determined that the first guide route and the second guide route are displayed in different colors.

  When the display mode is determined, the CPU 4 executes the navigation program stored in the ROM 3 to generate guide route display data for displaying the guide route (step S56). For example, as shown in FIG. 5, the guide route display data is data for displaying the second guide route on the display 10 with a thick solid line, and for blinking the first guide route on the display 10 with a thick dotted line. It is.

  When the guide route display data is generated, the CPU 4 executes the navigation program stored in the ROM 3 and stores the guide route display data in the HDD 9 (step S57).

  As described above, according to the present embodiment, the re-searched guide route (second guide route) is displayed, and the guide route (first guide route) from the guidance start point before the re-search to the current position is displayed. Therefore, it is possible to make the user grasp the travel progress in the entire travel process.

  In addition, according to the present embodiment, since the first guide route and the second guide route are displayed in different display modes, the ratio of the route from the guidance start point to the current position before the re-search is calculated with respect to the total travel distance. The user can easily grasp it.

  Further, according to the present embodiment, since the travel time from the departure point to the current position is displayed, it is possible to allow the user to grasp the time required for the travel before the re-search.

  Further, according to the present embodiment, since the travel distance from the departure point to the current position is displayed, it is possible for the user to grasp the distance required for the travel before the re-search.

  As described above, the navigation device according to the present invention has an effect of allowing the user to grasp the progress of the trip, and is useful as an in-vehicle AV device with a navigation function, a mobile phone with a navigation function, or the like.

The block diagram which shows the hardware constitutions of the navigation apparatus concerning this Embodiment The figure which shows the data structure of the map data in this Embodiment The flowchart which shows the basic operation | movement of the navigation apparatus concerning this Embodiment. The figure which shows the display display at the normal time in this Embodiment The figure which shows the display display after re-search in this Embodiment. The flowchart which shows the calculation process which is the characteristic operation | movement of the navigation apparatus based on this Embodiment. The flowchart which shows a part of production | generation process which is the characteristic operation | movement of the navigation apparatus concerning this Embodiment. The flowchart which shows a part of production | generation process which is the characteristic operation | movement of the navigation apparatus concerning this Embodiment.

Explanation of symbols

1 navigation device 3 ROM (calculation means, generation means)
4 CPU (calculation means, generation means)
10 Display (display means)

Claims (8)

A navigation apparatus comprising display means for displaying a guidance route from a guidance start point before re-searching to a destination point using a point around the current position as a transit point when the guidance route is re-searched. The display means displays a first guide route from a guidance start point before re-searching to a point around the current position and a second guide route from a point around the current position to the destination point in different display modes. The navigation device according to claim 1. Using the data on the re-searched guide route and the travel history data, the computer generates display data for displaying the guide route from the guidance start point to the destination point before the re-search using a point around the current position as a transit point. A navigation program characterized by functioning as generation means. The generating means displays the first guide route from the guidance start point before re-searching to a point around the current position and the second guide route from the point around the current position to the destination point in different display modes. 4. The navigation program according to claim 3, wherein data is generated. A navigation device comprising second display means for displaying a travel time from a departure time to a current time when a guide route is searched again. A computer for calculating a travel time from a departure time to a current time using travel history data when a guide route is re-searched, and a display for displaying the travel time calculated by the calculation unit A navigation program that functions as second generation means for generating data. A navigation device comprising a third display means for displaying a travel distance from a departure point to a point around the current position when a guide route is searched again. The computer calculates the travel distance from the departure point to a point around the current position using the travel history data when the guidance route is searched again, and the second calculation unit calculates the travel distance. A navigation program that functions as third generation means for generating display data for displaying a travel distance.

Images