JP2011237289A - Navigation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a "navigation device" for searching a route having property being the same as that of a course for a specified race.SOLUTION: Setting of a simulated course is received by a cursor 45 on a map 40 (b). Course characteristics (a distance, a cumulative height difference, an average incline, a minimum curve radius, and the number of curve passage) of the simulated course are calculated. Then, the route for a training course where a present position or a spot individually designated by a user is defined as a starting point and whose course characteristics are similar to designated course characteristics is searched, and the searched route is preserved as the route for a training course.

Description

  The present invention relates to a route search technique in a navigation device.

  As a route search technique in the navigation device, a technique for searching a route to a destination, a ring route having a specified time for a required time, a technique for searching a ring route having a specified distance for a travel distance, etc. Is known (for example, Patent Document 1).

JP-A-11-211497

  Now, in order to practice a marathon or bicycle road race, you may want to explore the route of a training course that simulates the course of a specific race you plan to participate in or target. However, the nature of the race course will vary depending on various factors as well as distance.

Therefore, if such a search for a training course is performed by a technique for searching for an annular route having a specified distance as described above, a route having the same characteristics as the course of a specific race is obtained. Can't explore this.
Therefore, an object of the present invention is to enable a navigation device to search for a route having the same properties as a specific race course.

  In order to achieve the above object, the present invention provides a navigation device that searches for a route and guides the searched route, a current position calculation unit that calculates a current position, and is specified on a map of an area selected by a user. A simulation target course setting unit that sets a course as a simulation target course, a designated course characteristic calculation unit that calculates a characteristic value of the simulation target course set by the simulation target course setting unit, and a current position calculation unit Search for a route of a course whose starting point is a current position or a point designated by the user, the course characteristic value of which approximates the characteristic value of the simulation target course calculated by the designated course characteristic calculating means Training that saves the data representing the route of the searched training course as training course data It is provided with a and over to set means. However, the characteristic value includes a first characteristic indicating the total elevation difference of the climb path included in the course, a second characteristic indicating an average of the inclination of the climb path included in the course, and a curve included in the course. The value of at least one of the third characteristic indicating the minimum radius of the fourth characteristic, the fourth characteristic indicating the number of curves included in the course, and the fifth characteristic indicating the distance of the course is calculated. It represents.

  In order to achieve the above object, the present invention provides a navigation device that searches for a route and guides the searched route for current position calculation means for calculating the current position and designated course characteristics that accept numerical input of characteristic values. A course starting from the current position calculated by the setting means and the current position calculating means or a point designated by the user, wherein the characteristic value of the course is the characteristic for which the designated course characteristic setting means has received numerical input A course route that approximates the value is searched, and a training course setting unit that saves data representing the searched training course route as training course data is provided. Here, the characteristic value is included in the course, a first characteristic indicating the total elevation difference of the climb roads included in the course, a second characteristic indicating an average of the slopes of the climb paths included in the course, and the course. This represents a value of at least one of the third characteristic indicating the minimum radius of the curve, the fourth characteristic indicating the number of curves included in the course, and the fifth characteristic indicating the course distance of the course. It is what is.

  According to navigation devices such as these, the sum of the elevation differences of the courses included in the course, the average slope of the climbs included in the course, the minimum radius of the curve included in the course, and the course For the number of curves, course distance, etc., search for the course of the specific race specified on the map or the course of the specific race where the characteristic value is entered as the route of the training course. Will be able to.

  Here, in such a navigation device, if a training course guide means for guiding the traveling according to the route represented by the stored training course data is provided, the user can run the training course in the navigation device. You will be able to guide the training course during training.

  In this case, the navigation apparatus may be provided with training data generation means for generating and storing training data for each time of the guidance performed by the training guidance means. However, the training data of each time includes the time required for the user to complete the travel of the route represented by the training course data according to the guidance of the times, and the current time at each time point during the period of guidance of the times. The travel history representing the position calculated by the position calculation means as the current position is registered. In this case, in the training guide means, the route represented by the training course data on the map, the mark representing the current position calculated by the current position calculation means, and the registered required time are the shortest. The position calculated by the current position calculation means as the current position at the time when the elapsed time from the start of the guidance is the same as the current elapsed time from the start of the current guidance, represented by the travel history of the training data A training course guide screen showing a mark indicating is displayed.

  By doing so, the user compares the current running pace with the running pace at the best time running of the training course in each training run while receiving the guidance of the training course. You will be able to do while.

  As described above, according to the present invention, it is possible to search for a route having properties similar to those of a specific race course in the navigation device.

It is a block diagram which shows the structure of the navigation apparatus which concerns on embodiment of this invention. It is a figure which shows the course data which the navigation apparatus which concerns on embodiment of this invention memorize | stores. It is a flowchart which shows the course setting process which concerns on embodiment of this invention. It is a figure which shows the display screen of the navigation apparatus which concerns on embodiment of this invention. It is a figure which shows the display screen of the navigation apparatus which concerns on embodiment of this invention.

Hereinafter, embodiments of the present invention will be described.
FIG. 1 shows a configuration of a navigation device according to the present embodiment.
The navigation device 1 is a portable device or a device that can be worn on a bicycle. The navigation device 1 is a device that calculates a current position and a current traveling direction, such as a speaker 11, an operation unit 12, a display device 13, and a GPS receiver. The current state calculation unit 14, the route search unit 15, a storage device 16 such as an HDD that stores map data representing a three-dimensional map including altitude information and course data to be described later, a memory 17, and a speaker 11. A voice output unit 18 that outputs voice by using, a control unit 19, a guide image generation unit 20, and a GUI control unit 21 that provides a user with a GUI using the operation unit 12 and the display device 13.

  However, the above navigation apparatus 1 may be a CPU circuit having a general configuration including peripheral devices such as a microprocessor, a memory, and other graphic processors and geometric processors in terms of hardware. In this case, each unit of the navigation device 1 described above may be realized as a process embodied by a microprocessor executing a program prepared in advance. In this case, such a program may be provided to the navigation apparatus 1 via a recording medium or an appropriate communication path.

  In such a configuration, the current state calculation unit 14 of the navigation device 1 performs a map matching process with the map indicated by the map data read from the storage device 16 on the calculated current position, and the like. The most likely coordinates and the most likely direction as the current traveling direction are determined as the current position and the current traveling direction, respectively, and are set in the memory 17.

  Next, the control unit 19 accepts a destination setting from the user via the operation unit 12 and the GUI control unit 21 in response to a user destination setting request, and sets this in the memory 17. When the control unit 19 receives the destination setting, the control unit 19 causes the route search unit 15 to search for a recommended route to the destination set in the memory 17. The route search unit 15 reads the map data from the storage device 16 and calculates the minimum cost route from the current position set in the memory 17 to the destination as a recommended route based on a predetermined cost model such as the minimum distance. Then, the calculated route data of the recommended route is set in the memory 17. In addition, when the current position set in the memory 17 becomes near the destination, the control unit 19 determines that the destination has arrived, and also performs a process of clearing the destination and the recommended route set in the memory 17. .

  In addition, the guide image generation unit 20 draws a map around the current position based on the map data, draws a current position mark representing the current position set in the memory 17 on the map, A guidance image as shown in FIG. 4 a is generated and displayed on the display device 13 via the GUI control unit 21. In FIG. 4a, 40 represents a map and 41 represents a current position mark. When the destination and route data are set in the memory 17, the guidance image generation unit 20 also displays the recommended route graphic representing the recommended route indicated by the route data and the destination mark representing the destination in the guidance image. Draw on the map 40.

Next, the above-described course data stored in the storage device 16 will be described.
Here, the course data is data representing various types of information related to the training course provided for each training course set and stored by the user, as will be described in detail later. Here, the training course is a course that the user uses for marathon and bicycle road race training.

  Now, as shown in FIG. 2, each of the course data includes a course name of the corresponding training course, course characteristics representing the characteristics of the corresponding training course, route data representing the route of the corresponding training course, and the corresponding training course. Training data representing the history of the training performed and the best record pointer are registered.

  Also, as course characteristics, the distance representing the distance of the training course, the cumulative height difference that is the sum of the elevation differences of the climbing course during the training course, the average slope that is the average of the slope of the climbing course during the training course, The minimum curve radius that is the minimum radius of the curve in the training course, the number of curves that are the number of curves in the training course, and the like are registered.

  In addition, as the training data, a running record corresponding to each training performed in the corresponding training course is registered, and each running record includes the date and time when the corresponding training was performed, and the time required to complete the training course in the corresponding training. The travel history storing the travel time required and the position of the user on the training course at each time point (for example, every 10 seconds) during the corresponding training course traveling period is stored.

In the best record pointer, the identification of the travel record with the minimum travel time is registered.
In such a configuration of the navigation device 1, the control unit 19 makes a training course setting request from the user via the operation unit 12 and the GUI control unit 21 by a menu that can be called from the menu button 42 shown in FIG. Is received, the course setting process is performed to set the training course described above.

FIG. 3 shows the course setting process.
As shown in the figure, in the course setting process, first, the course setting screen shown in FIG. 4B is displayed (step 302), and any one of the “simulation target course designation” button 43 and the “numerical value input” button 44 is operated. Is received (steps 304 and 306).
If the operation of the “simulation target course designation” button 43 is accepted (step 304), a course acceptance screen as shown in FIG. 4c is displayed, and the setting of the simulation target course is accepted (step 322). Here, the control unit 19 displays, on the course reception screen, the map 40 of the user's desired area determined in accordance with the user operation on the course reception screen at the user-desired scale determined in accordance with the user operation. To do. Further, the control unit 19 accepts a point designation operation by position input with the cursor 45 on the map 40 on the course acceptance screen, and sets a route that connects the designated points on the map 40 in the designated order. Then, if the completion button 47 is operated, the first designated point is the start point, and the last designated point before the completion button 47 operation is the goal point. Accept.

Here, the user sets the course of the race to be simulated in the training course to be set as the simulation target course using the course reception screen.
When the setting of the simulation target course is accepted in this way, the course characteristics (distance, cumulative height difference, average slope, minimum curve radius, number of curve passages) of the simulation target course are calculated, and the designated course characteristics are calculated. And proceed to step 312.
On the other hand, when the operation of the “numerical value input” button 44 is accepted on the course setting screen shown in FIG. 4B (step 306), the numerical value input screen shown in FIG. , Cumulative height difference, average slope, minimum curve radius, number of curve passes) is accepted, and if the completion button 48 is operated, the course characteristics based on the entered values are set as designated course characteristics Proceed to 312.

  If the process proceeds to step 312 in this way, the training with the course characteristic closest to the designated course characteristic, with the current position set in the memory 17 or a point designated by the user as a start point, being started. The course route is searched (step 312).

Here, this route search is performed, for example, as follows.
First, the start point is set as the goal point, and the search range is set on the map according to the distance of the designated course characteristic. The search range is, for example, a range in which the distance from the start point is within half the distance of the designated course characteristic. That is, if the distance of the designated course characteristic is 10 km, the range within 5 km from the start point is set as the search range.
Then, all routes that exist within the search range from the start point to the goal point are searched.

  Then, the course characteristic of the searched route is obtained, and the obtained course characteristic and the non-approximation degree of the designated course characteristic are obtained. Here, the degree of non-approximation is E0 for an error in cumulative distance between the course characteristics of the extracted route and the designated course characteristics, E1 for an error in the cumulative height difference between the course characteristics of the extracted route and the designated course characteristics, The average slope error between the course characteristics and the specified course characteristics is E2, the minimum curve radius error between the extracted course characteristics and the specified course characteristics is E3, and the curve passes between the extracted course characteristics and the specified course characteristics. An error of the number is set as E4, and is obtained as k0 × E0 + k1 × E1 + k2 × E2 + k3 × E4 + k4 × E4. However, kn is a coefficient, and is determined in advance according to how each of the distance, the accumulated height difference, the average gradient, the minimum curve radius, and the number of curve passages are relatively important. In addition, when the specified course characteristics are set by the user on the numerical value input screen, the numerical value is not specified on the numerical value input screen by the user among the cumulative height difference, average slope, minimum curve radius, and number of curve passes. The error between the course characteristic of the extracted route and the designated course characteristic is zero.

Then, the route having the smallest non-approximation obtained among the searched routes is set as the route of the training course.
Next, when the route of the training course is searched in this way, a training course confirmation screen as shown in FIG. 5a showing the route of the searched training course on the map is displayed on the guide image generating unit 20 ( Step 314). Here, in the training course confirmation screen shown in FIG. 5a, the S mark 50 represents the starting point of the training course, the route graphic 51 represents the route of the training course, and the goal mark 52 represents the goal point of the training course.

When the save button 53 on the training course confirmation screen is operated by the user (step 316), the course data of the training course displayed on the training course confirmation screen is newly created in the storage device 16 (step 318). ).
That is, in creating the course data, first, designation of the name of the training course is received from the user. Then, new course data is created and stored in the storage device 16 with the designated name as the course name, the designated course characteristic as the course characteristic, and the data representing the route of the searched training course as the route data. At this time, nothing is registered in the training data of the newly created course data and the best record pointer.

Then, the training course for which the course data is created in step 316 is set as the current course, the course guidance process is started (step 320), and the process is terminated.
The course setting process performed by the control unit 19 has been described above.
Next, the course guidance process performed by the control unit 19 will be described.
The course guidance process is started at step 320 of the course setting process as described above, and may be started as follows.
That is, if the control unit 19 receives a training course call request from the user via the operation unit 12 and the GUI control unit 21 by a menu that can be called from the menu button 42 shown in FIG. Such a course call screen showing a list of course names registered in the course data of each training course whose course data is stored in the storage device 16 is displayed, and the selection of the training course is accepted from the user. Then, the training course that has received the selection is set as the current course, and the course guidance process is started.

  Next, in the course guidance process activated as described above, first, a current course confirmation screen as shown in FIG. 5c is displayed. As shown in the figure, on the current course confirmation screen, based on the route data of the course data of the training course set for the current course, the current position 41 on the map 40 and the start of the training course set for the current course are displayed. An S mark 50 representing a point, a route graphic 51 of the training course set in the current course, and a goal mark 52 representing the goal point of the training course set in the current course are displayed.

Then, if the guidance start button 54 is operated when the current position is at the starting point of the training course set as the current course on the current course confirmation screen, the current by the display of the course guidance screen shown in FIG. Start the course guidance.
As shown in FIG. 5d, on the course guidance screen, the current position 41, the route 51 of the training course set in the current course, and the like are displayed on the map 40.
Further, when traveling according to the route 51 of the training course, the control unit 19 outputs a voice message that guides the direction of the course change if the current position approaches a point where the course should be changed, such as turning left or right. 18 is also used for processing to be output from the speaker 11.
Therefore, the user can receive travel guidance along the training course set in the current course by displaying the course guidance screen or by a voice message.
Next, the control unit 19 displays, on this course guidance screen, an elapsed time 551 after the guidance start button 54 is operated to start guidance for the current course, and an average value of moving speeds after the guidance for the current course is started. 552, the travel distance 553 after starting the guidance of the current course is displayed. In the course guide screen, a distance 561 representing the distance of the training course set in the current course, registered in the course characteristics of the course data of the training course set in the current course, The required travel time 562 registered in the travel record in which the best record pointer indicates identification (recorded when the training course was completed in the shortest time in the past) is also displayed.

  Moreover, if the guidance of the current course is started, the control unit 19 creates a new travel record in the training data of the course data of the training course set in the current course, and registers the current date and time as the date and time. Then, processing for accumulating the current position in the travel history of the created travel record is performed periodically (for example, every 10 seconds) in association with the elapsed time from the start of guidance for the current course.

  Then, the control unit 19 presents the current travel history registered in the travel record in which the best record pointer of the course data of the training course set in the current course is identified on the map 40 of the course guide screen. A mark 57 representing the current position recorded in association with the same elapsed time as the elapsed time 551, that is, the current position when the training course has been run in the same way as during past best time running is also displayed.

  Therefore, the user can grasp the current running pace from the display of the course guidance screen or grasp the comparison between the current running state and the best time running of the training course. Training to run the training course can be performed.

Now, when the user reaches the goal point and completes the running of the training course, the control unit 19 starts the guidance of the current course at the goal point in the running record created at the start of the guidance of the current course. The elapsed time from is registered as the required travel time.
If the registered required travel time is shorter than any of the required travel times registered in other travel records included in the training data, the best record pointer of the course data of the training course set in the current course Is updated to indicate the identification of the travel record created at the start of the guidance for the current course.

The embodiment of the present invention has been described above.
In the above embodiment, the navigation device 1 has been described as a portable device or a device that can be mounted on a bicycle. However, the navigation device 1 may be a vehicle-mounted device mounted on an automobile. Good. In this case, the navigation device 1 may perform only the setting of the training course and the creation of the course data by the course setting process without performing the course guidance process. In this case, the navigation device 1 is configured so that the created course data can be output to an external device.

  DESCRIPTION OF SYMBOLS 1 ... Navigation apparatus, 11 ... Speaker, 12 ... Operation part, 13 ... Display apparatus, 14 ... Current state calculation part, 15 ... Route search part, 16 ... Memory | storage device, 17 ... Memory, 18 ... Audio | voice output part, 19 ... Control Part, 20 ... guide image generation part, 21 ... GUI control part.

Claims (4)

A navigation device that searches for a route and guides the searched route,
Current position calculating means for calculating the current position;
A simulation target course setting means for setting a course designated on the map of the area selected by the user as a simulation target course;
Designated course characteristic calculating means for calculating a characteristic value of the simulated target course set by the simulated target course setting means;
A course starting from the current position calculated by the current position calculation means or a point designated by the user, and the characteristic value of the course is the characteristic value of the simulation target course calculated by the designated course characteristic calculation means It has a training course setting means for searching for a route of the approximate course and storing data representing the searched training course route as training course data.
The characteristic value includes a first characteristic indicating the total elevation difference of the climb path included in the course, a second characteristic indicating an average of the slope of the climb path included in the course, and a minimum curve of the curve included in the course. Represents the value of at least one of the third characteristic indicating the radius, the fourth characteristic indicating the number of curves included in the course, and the fifth characteristic indicating the course distance of the course A navigation device characterized by being. A navigation device that searches for a route and guides the searched route,
Current position calculating means for calculating the current position;
Designated course characteristic setting means for accepting numerical input of characteristic values;
A course starting from the current position calculated by the current position calculation means or a point designated by the user, and the characteristic value of the course approximates the characteristic value for which the designated course characteristic setting means has received a numerical input. A course setting unit for searching for a course route and storing data representing the searched training course route as training course data;
The characteristic value includes a first characteristic indicating the total elevation difference of the climb path included in the course, a second characteristic indicating an average of the slope of the climb path included in the course, and a minimum curve of the curve included in the course. This represents a value of at least one of a third characteristic indicating the radius, a fourth characteristic indicating the number of curves included in the course, and a fifth characteristic indicating the course distance of the course. A navigation device characterized by that. The navigation device according to claim 1 or 2,
A navigation apparatus comprising training course guidance means for guiding traveling according to a route represented by the stored training course data. The navigation device according to claim 3,
Training data generating means for generating and storing training data for each time of the guidance performed by the training guide means;
The training data for each round includes the time required for the user to complete the travel of the route represented by the training course data according to the guidance for the round, and the current position calculation at each time point during the period of guidance for the round. The travel history representing the position calculated by the means as the current position is registered,
The training guidance means includes a route represented by the training course data on a map, a mark representing the current position calculated by the current position calculation means, and a travel history of training data with the shortest required registration time The mark indicating the position calculated by the current position calculation means as the current position at the time when the elapsed time from the start of the guidance is the same as the current elapsed time from the start of the current guidance. A navigation apparatus characterized by displaying a training course guidance screen.