JP2002257572A - Training navigation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a training navigation system capable of properly indicating and guiding for a trainee inexperienced in driving, and facilitating work of an instructor. SOLUTION: A travel route to be guided is extracted according to training stage information for indicating a training progress state, and when a vehicle deviates from the travel route extracted at guiding time of the mtravel route, the travel route or a return route up to a starting point of the vehicle is searched.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a navigation device for training which provides more detailed guidance to a paper driver or a trainee who is not yet driving.

[0002]

2. Description of the Related Art In general, training at a driving school is conducted in accordance with a preset training curriculum. A skill training in which trainees actually drive is performed by a trainee sitting in a driver's seat in a passenger seat. On the training course with an instructor on the train. Then, if there were any bad habits or erroneous operations of the driving trainee, the instructor instructed the correct operation orally to the trainee.

[0003]

However, even if a trainee who is unfamiliar with driving and remembers a training course and drives,
It is difficult to drive on the training course accurately, and there is a risk of getting lost from the course. Even if the course is guided by the instructor, the trainee is so enthusiastic about the driving operation that he or she misses the instructor's instruction or guidance, or the response to the instruction or guidance is delayed. However, there is a problem that it is not always possible to give an instruction to the trainee at an appropriate timing, and it is difficult for the trainee to perform an accurate operation.

[0004] It is an object of the present invention to provide a training navigation apparatus capable of providing detailed guidance that solves the above-described problems.

[0005]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and is directed to a training navigation apparatus for a trainee who learns driving operation skills of a vehicle, according to training stage information indicating the progress of the training. And an extraction means for extracting a traveling route to be guided.

[0006] The vehicle further includes display means for displaying the traveling route and the like, and reproducing means for reproducing a locus route traveled by the vehicle. The reproducing means includes at least the traveling route extracted by the extracting means, and the vehicle. And reproducing the trajectory route, the traffic information at the time of guidance, the map information and the vehicle position at the time of guidance on the display means.

[0007] Further, when the traveling speed is equal to or higher than a preset speed limit, there is provided a voice output means for notifying by voice that the speed limit has been exceeded.

[0008] Further, when the vehicle deviates from the travel route extracted by the extraction means at the time of guidance of the travel route, a search means for searching for the travel route or a return route to a starting point of the vehicle is provided. It is characterized by the following.

Further, the search means searches for a return route according to the ability of the driver based on the training stage information.

[0010] Also, instructing means for instructing the destination to be the departure point of the vehicle during the guidance of the traveling route, and when the instructing means instructs the destination to the departure point, a return route to the departure point is searched. A search means for performing the search.

Further, the search means searches for a return route according to the ability of the driver based on the training stage information.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram of a (car driving) training navigation apparatus according to an embodiment of the present invention. Hereinafter, description will be made with reference to the drawings.

A GP 11 receives radio waves from artificial satellites (GPS satellites) and calculates latitude and longitude from the received signals.
S receiver. Reference numeral 12 denotes a direction sensor such as a gyro sensor for detecting the traveling direction of the vehicle. Reference numeral 13 denotes a distance sensor for detecting a traveling distance of the vehicle, which is constituted by a magnetic or optical rotation speed sensor that outputs a pulse synchronized with the rotation of the axle. Reference numeral 14 denotes a CD-ROM or DVD (Digital Versatile D) on which map information is recorded.
is a map database composed of a recording medium such as an isk) and a reading device therefor. Road data such as node data and link data for route search and guidance, and expressways, national roads, prefectural roads, agricultural roads, and forest roads on each road. Alternatively, road attribute data such as a road type such as a paved road or an unpaved road, a width, the number of lanes, a main line branch line, a slope, or a road structure such as a tunnel, a bridge or a median strip is stored. Further, the map database 14 stores detailed road data in the driving school. Reference numeral 15 denotes a VICS receiver that receives VICS data of various levels relating to road traffic information (congestion information, traffic regulation information, accident information, etc.) from outside the vehicle.

Reference numeral 2 denotes a process for specifying the position of the vehicle based on the position data calculated by the GPS receiver 11, data from the direction sensor 12 and the distance sensor 13, and data from the map database 14, an input training stage, and the like. The process of extracting the set course based on the parameter values of the process, the process of guiding the vehicle along the set course, the process of storing the starting point, the process of searching for a travel route to the destination, and the process of searching for a vehicle along the searched route Guidance processing, processing for demonstrating the path of a vehicle, processing for setting a speed limit according to road attributes, processing for notifying the set speed limit, processing for storing information of the VICS receiver 15, map database 14 The control section performs processing to display a map and vehicle position based on the data of the map, processing to display an enlarged map of an intersection and a guide map such as an arrow indicating a traveling direction, and the like. Consisting of Russia computer or the like.

Reference numeral 31 denotes a display unit including a liquid crystal display panel for displaying a map image, an enlarged guide image of an intersection, and the like based on a signal from the control unit 2. Reference numeral 32 denotes an audio output unit for uttering audio for guidance based on an instruction from the control unit 2 and performing audio guidance using a speaker or the like, and outputting PCM data and ADPCM data stored in a CD-ROM or the like. It is composed of a playback device or a speech synthesis device. Reference numeral 4 denotes an input unit including operation switches and the like for performing operations such as destination setting, display switching, and the like. By operating this input unit, training stage information of the trainer and speed check setting ON / OFF information are selected. These pieces of information are input to the control unit 2.

FIG. 2 is a flowchart of a guidance process performed by the control unit 2 of the training navigation device according to the embodiment of the present invention. FIG. 3 is a flowchart of a process performed by the control unit 2 at the time of the demonstration traveling (demonstration traveling) of the locus route. FIG. 4 is a display state diagram showing a display example of the display unit, and FIG. 4A is a menu display state diagram showing a display image example of the menu screen. FIG. 4B is a route display state diagram showing a display image example of the return route. FIG.
Is another display example of the set route. FIG. 6 is an explanatory diagram of the return route search.

First, a navigation device for training (hereinafter referred to as a navigation device) is activated in conjunction with a power supply when an ignition key is turned on, similarly to a normal navigation device. Then, when the user selects a menu by using the switch of the input unit 4, as shown in FIG.
1 displays a menu screen. On the menu screen,
Icons such as a speed check setting for notifying by voice when the vehicle emits a speed equal to or higher than the speed limit with a predetermined speed limit and a stage setting for selecting and setting the progress of a training stage are displayed. In step S11, the input unit 4 from the user
By operating the switch, the user first inputs information on whether or not to set a speed check for notifying from the audio output unit 32 that the predetermined speed has been exceeded on the menu screen, and performs processing for performing setting in accordance with this information. Is completed, step S1
Move to 2.

That is, the user selects the icon displayed as "speed", and further selects the icon displayed as "guidance" (displayed when "speed" is selected). Then, by the selection, as shown in FIG.
-Since No is displayed, a selection is made according to whether or not to provide guidance during traveling. The selection operation is performed by the input unit 4. Also,
When an icon labeled "limit" is selected, a speed limit can be set for each road type, not shown. For example, when setting a general road, 40 km
/ H; 50 km / h; 60 km / h and the like.

In step S12, the user selects predetermined parameter values including information on the progress of the training stage, such as the stage, on-the-road training, a completion test, and a graduation test, by using the input unit 4 according to the setting screen. A process of inputting each selected parameter value and storing these parameters is performed, and the process proceeds to step S13. For example, when the user selects an icon displayed as “stage” on the menu screen, the icons displayed as “1 stage”, “2 stage”, “completion”, and “graduation” are displayed on the display unit 31. The user selects his or her training stage. For example, when an icon indicating “graduation” is selected, each course for graduation test is displayed on the display unit 31 as an icon. Further, the user selects a course to drive.

In accordance with the parameter values, the control unit 2 enters a training stage such as, for example, a circumnavigation route that is relatively easy to drive in the first stage of the first stage, and a route that covers the campus course for completion verification. The information of the traveling route and the traveling route (how to proceed) corresponding to the information is stored in a RAM or the like, which is backed up by a power source, and when a parameter value is selected by the input unit 4, the selected parameter value is stored in step S13. Based on the parameter values obtained, the driving route and the route to be guided corresponding to the parameter values are read out from the RAM and extracted, the route is set, and a color (see FIG. 4A) that can be identified as the route set as shown in FIG. (Thick line in the drawing) is displayed on the map.

In this case, since the graduation test course is selected, the route as shown in FIG. 4A is extracted and selected. However, after departure from the driving school, it is indicated in advance by arrow or the like which way to turn first. It is made to let. In addition, other than such a graduation test course, if "first stage" is selected, the route of the basic operation (start / stop / simple steering operation) as shown in FIG. Fig. 5
The route of the completion test (degree) as shown in (b) is displayed on the map in color. Along with this, the GPS receiver 11
The vehicle position at the time of setting a route is detected on the basis of the position data calculated in the above, the data from the direction sensor 12 and the distance sensor 13 and the data in the map database 14, and this vehicle position is used as the starting point, that is, training starts. The starting point is stored in a starting point storage means such as a RAM, and the starting point or its vicinity is set as a destination point so that the vehicle can return to this starting point, so that the route can be made to follow a predetermined route.

In step S14, the control unit 2 stores the detected latitude / longitude information of the vehicle position as the position information of the vehicle position at a fixed cycle (one second interval) from the map database 14 to the display unit 31. The map image is read and displayed, and a vehicle position mark indicating the current position of the vehicle is displayed on the map image. Then, a route guidance program is executed based on the detected vehicle position and the set route, and the display unit 3
1 displays a guidance image such as an enlarged map of an intersection, and performs guidance of the extracted route by voice from the voice output unit 32, such as "Please turn left next", to the starting point or the vicinity set as the destination point Guide you back. When it is desired to make a number of turns, the number of turns may be input in advance, and guidance may be provided for a plurality of turns based on the input number-of-turns data.
In addition, it records the position of the vehicle and starts recording traffic information received from the VICS receiving unit 15 during traveling.

That is, the congested section is recorded in the RAM. Next, the process proceeds to step S15, where the detected speed limit of the road attribute is compared with the speed of the own vehicle obtained by the vehicle speed pulse. If it is determined that the speed of the own vehicle does not exceed the speed limit, the process proceeds to step S17. If it is determined that the speed of the vehicle exceeds the speed limit, the process proceeds to step S16. That is,
The road attribute of the road at the point where the vehicle is traveling is read from the map database 14. Road attributes include road type, speed limit, road width, number of lanes, land classification (city area, suburb, mountainous area, etc.), classification of main line / branch line, road gradient, road structure (tunnel, bridge, presence or absence of median strip, etc.) ) Is stored in the map database 14.

For example, the attribute of the road on which the vehicle is traveling is detected as an expressway, and the speed limit (80 km / h) of the expressway is set as the speed limit to be compared. Since each road may have a plurality of road attributes at the same time, the speed limit is set according to a combination of the plurality of path attributes. In step S16, the audio data corresponding to the speed limit is output to the audio output unit 32, and the audio output unit 32 reads aloud by voice such as "exceeds 80 km / h". At this time, voice guidance is normally output only from the right speaker when viewing a CD / radio, etc. During the training, only the navigation function is used. Whether to output only from the right side or output from both the left and right sides may be made selectable according to the user's preference and use situation.

Incidentally, such a speed check is performed in step S
This is performed when the speed check is set in advance in step S11. Next, in step S17, the current vehicle position detected by the GPS receiver 11 is compared with the set route, and it is determined whether the current vehicle position has deviated from the set route for some reason. When it is determined that the vehicle does not deviate from the set route, the process proceeds to step S19, and when it is determined that the vehicle deviates from the set route, the process proceeds to step S18.

In step S18, based on the traffic congestion information of the road and the map database 14, a return route which is the safest and shortest distance to the set course is searched for in consideration of road attributes such as road width and road gradient. The return route is displayed in the map image as shown in b). FIG. 6 is an explanatory diagram of the return route search. The driver is not used to driving, so when searching for a route, it is necessary to search for intersections and narrow roads that require a right turn, roads that require rapid driving such as U-turns, sharp curves and corners, and advanced driving operations. Weight the path costs used heavily. In addition, a heavy weight is given to the route cost for roads with high traffic congestion and high risk from the traffic information. By searching for a route with the smallest route cost among the weighted route costs, a route with the highest priority on safety is searched.

As shown by the diagonal lines in FIG. 6, since the route closest to the set route has a large traffic volume and a narrow road, the priority is lowered due to the shortest weighting, but another route is searched. As a result, as shown by the one-dot chain line in FIG. 6, a route with a small road cost and a low-risk highest-priority route is searched. In other words, safety is given priority over shortest. At this time, a plurality of return routes may be searched and selected according to the parameter value (for example, the third training on the road). Further, when the vehicle deviates from the set course, a return route from the destination to the departure point may be searched (in this case, a return route that is safe and has the shortest distance to the departure point is searched for, and is set first. A route different from the route is extracted.)

Next, in step S19, it is determined whether or not an instruction to set the destination as a driving school has been selected on the menu, for example, when the training has been completed due to disqualification or the like. If it is not selected, a series of processing is completed, and by operating the switch of the input unit 4, the destination is changed to a driving school.
That is, if it is selected and instructed to return to the driving school without returning to the set route, the process proceeds to step S20. still,
The instruction at this time is to move the cursor on the input unit 4 to the position of the driving school on the map and perform an operation to set the destination,
Such a return instruction may be provided on the menu screen in advance and selected.

In step S20, the destination of the return route to the driving school is set as the driving school, and the route to the driving school is determined by taking the current position of the vehicle as a starting point and taking the road attribute into consideration so as to be a safe and shortest distance. Is newly performed. Therefore, this route is extracted so as to be different from the initially set route. At this time, a plurality of return routes may be searched and selected according to the parameter value. For example, in the third training on the road, the driver becomes accustomed to driving, so some routes that pass through intersections that turn right and routes with relatively large traffic are extracted, and these can be selected and set. If the user is not accustomed, such as the first time, a route search giving priority to safety is performed. When the guidance route is set and determined, guidance is provided to the driving school, and when the vehicle reaches the destination, a series of processing is completed. The above is the basic flow for providing guidance during traveling.

The present invention has a traveling locus demonstration function in addition to the guidance function.

First, the user selects and starts “start” of the locus route demonstration on the menu screen by a user operation. In step S31, the vehicle trajectory route information (travel trajectory from the starting point to the destination) stored in the RAM is read out,
Move to step S32. In step S32, a setting route determined by a parameter value input in advance,
The traffic information (congestion section) received from the VICS receiving unit 15 during traveling is read from the RAM. Next, the process proceeds to step S33, where the read trajectory route information, the set route, and the traffic information are displayed on the display unit 31 together with the map image based on the map database 14.

Then, the vehicle position mark is displayed at the starting point on the map image, and thereafter, the vehicle position mark is displayed at the running position of the vehicle based on the read trajectory route.
(Every second). That is, the demonstration run starts from the starting point and ends when the vehicle reaches the destination. In the meantime, during the guidance, a demonstration of sequentially updating and displaying a map image including a vehicle position moving in accordance with the position coordinate information of the vehicle stored at a constant cycle (1 second interval) at a constant time interval is continued. As described above, it is possible to compare the actually run route route with the set course that was scheduled to run, and to know the reason for the route change based on the traffic information.

In the present embodiment, routes prestored in the RAM are read and extracted. However, calculations such as weighting (intersections and narrow roads that require a right turn, U-turns, sharp curves and corners) are performed. For roads that require abrupt driving operations or advanced driving operations such as roads, weight the route costs used during route search so that the total route cost will be a value according to the progress of the training. ) May be used to extract the route.

[0034]

As described above in detail, according to the present invention, it is possible to provide detailed guidance to an inexperienced driver, and to understand the operation of the navigation device together with the acquisition of the driving technique. it can. Further, in the training at a driving school or the like, the training navigation device gives instructions to the trainee, so that the work of the instructor becomes easy. In addition, since the functions of the conventional navigation device are utilized as much as possible,
Costs can be kept as low as possible.

[Brief description of the drawings]

FIG. 1 is a block diagram of a (car driving) training navigation device according to an embodiment of the present invention.

FIG. 2 is a flowchart of a guidance process performed by a control unit 2 of the training navigation device according to the embodiment of the present invention.

FIG. 3 is a flowchart of a process performed by the control unit 2 during a demonstration run (demo run) of a locus route according to the present invention.

FIG. 4 is a display state diagram showing a display example of a display unit.

FIG. 5 is another display example of a set route.

FIG. 6 is an explanatory diagram of a return route search.

[Explanation of symbols]

 2 ... Control unit 4 ... Input unit 6 ... Vehicle speed sensor 11 ... GPS receiver 12 ... Azimuth sensor 13 ... Distance sensor 14 ... Map database 15 ... VICS receiving unit 31 display unit 32 audio output unit

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G08G 1/0969 G08G 1/0969 G09B 9/052 G09B 9/052 29/00 29/00 A 29/10 29 / 10 A // G01S 1/68 G01S 1/68 5/14 5/14

Claims (8)

[The claims] 1. A training navigation device for a trainer who learns a vehicle driving operation technique through a training, extracting means for extracting a traveling route to be guided according to training information indicating a progress of the training of the trainer. A navigation device for training, comprising: 2. Display means; trajectory information storage means for storing trajectory information of the travel of a vehicle at the time of guidance of a travel route; and a travel route extracted by at least the extraction means.
And a reproducing means for displaying the trajectory information of the vehicle stored by the trajectory information storage means on the display means to reproduce the traveling trajectory of the vehicle.
The described navigation device for training. 3. A training navigation apparatus according to claim 2, further comprising traffic information storage means for storing traffic information at the time of guidance, wherein said reproducing means causes said display means to also display said traffic information. . 4. A traveling speed detecting means for detecting a traveling speed of a vehicle, wherein, when the traveling speed is equal to or higher than a preset speed limit during guidance of a traveling route, the traveling speed exceeds the speed limit. 2. A training navigation device according to claim 1, further comprising a voice output unit for notifying the user by voice. 5. When the vehicle deviates from the travel route extracted by the extraction means when guiding the travel route, a search means is provided for searching for the travel route or a return route to a starting point of the vehicle. The training navigation device according to claim 1, wherein: 6. The search means according to the training information,
6. The training navigation device according to claim 5, wherein a return route is searched in accordance with the progress of the training of the trainee. 7. Instructing means for instructing to return to the departure point of the vehicle when guiding the traveling route, and instructing to return to the departure point by the instructing means, from the current position of the vehicle to the departure point. 2. The training navigation device according to claim 1, further comprising a search means for searching for a return route of the training. 8. The search means according to the training information,
8. The training navigation device according to claim 7, wherein the return route is searched according to the progress of the training of the trainee.