JP2009210530A - Navigation device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a navigation device for a vehicle that provides information for making a driver perform safe driving during driving. <P>SOLUTION: When a destination is set, a control section 4 of the navigation device 1 calculates a guide route to the destination referring to driving characteristic information and traffic information, creates a drive plan for performing safe driving along the guide route, and provides it to the driver. The driver, when performing the driving referring to the provided drive plan, can travel to the destination in good time without undue stress. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a vehicle navigation apparatus that provides information for a driver to perform safe driving.

In general, a vehicular navigation device is intended to provide information so that a driver can arrive at a destination more efficiently and quickly by indicating the distance and direction to the destination to the driver. However, it is presumed that the driver's request is not necessarily limited to that which arrives at the destination in the shortest time, but that there is a driver who places importance on safety and wants to drive with a margin. However, the conventional navigation apparatus does not have a function to answer such a request.
For example, Patent Literature 1 discloses an apparatus that determines whether safe driving is being performed and provides a scored result to the driver.
JP 2004-249821 A

However, the configuration of Patent Document 1 evaluates the result of driving and does not provide useful information that contributes to safe driving at the stage of actual driving.
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a vehicle navigation apparatus capable of providing a driver with information for performing safe driving during driving.

  According to the vehicular navigation device of the first aspect, when the destination is set, the drive plan presenting means, the driving characteristic information recorded by the driving characteristic information recording means, and the traffic acquired by the traffic information acquiring means By referring to the information, a guide route to the destination is calculated, and a drive plan for safe driving along the guide route is created and presented to the driver. Therefore, the driver can drive with a margin without overdoing it to the destination by driving with reference to the presented drive plan.

  According to the vehicle navigation device of the second aspect, since the driving characteristic information recording means records information on timing for taking a break in the past driving history of the driver, the drive plan presenting means includes the information in the information. Based on this, it is possible to appropriately set the timing for recommending a break to the driver in the drive plan.

  According to the vehicle navigation device of the third aspect, since the driving characteristic information recording means records information indicating a tendency of the traveling speed in the past traveling history of the driver, the drive plan presenting means includes the information Based on the above, when the driving speed is set in accordance with the tendency of the driver in the drive plan, or when the speed tends to be excessively increased, it is possible to set a slightly lower speed.

  According to the vehicle navigation device of the fourth aspect, since the driving characteristic information recording means records information indicating the tendency of the road type selected in the past driving history of the driver, the drive plan presenting means includes: In the drive plan, it is possible to select and present a road on which the driver is estimated to be driving, such as a general road, an expressway, a narrow road or a wide road.

  According to the vehicle navigation device of the fifth aspect, since the age of the driver is recorded in the driving characteristic information recording unit, the drive plan presenting unit can determine the number of times of taking a break in accordance with the age in the drive plan. Time etc. can be set.

  According to the vehicle navigation device of the sixth aspect, the traffic information acquisition means acquires any one or more of traffic jam information, speed regulation information, dangerous road information, and resting place information based on past driving history. Therefore, the drive plan presentation means considers such information, for example, to obtain the travel time based on the prediction of occurrence of traffic jams and speed restrictions, avoid dangerous roads, select candidate rest places, etc. Drive plans can be created.

  According to the vehicle navigation device of the seventh aspect, the drive plan presenting means presents the maximum speed when traveling on the road of the guide route, so that the driver should observe the maximum speed as a guide. Safe driving can be performed.

  According to the vehicle navigation device of the eighth aspect, since the drive plan presenting means presents the expected average speed when traveling on the road of the guide route, it is a guide that the driver observes the expected average speed. Safe driving.

  According to the vehicle navigation device of the ninth aspect, since the drive plan presenting means presents a place to take a break and a rest time in the middle of the guide route, the driver follows the drive plan at an appropriate timing. You can take a break.

  According to the vehicle navigation device of the tenth aspect, since the drive plan presenting means presents the estimated arrival time for a predetermined point in the guide route, the driver can safely refer to the estimated arrival time. You can drive.

  According to the vehicle navigation device of the eleventh aspect, when the desired arrival time at the destination is set by the user, the drive plan presenting means presents the departure time calculated backward from the desired arrival time. Therefore, if the user departs at the presented time, the user can arrive at the time desired by the user while safely driving.

  According to the vehicle navigation device of the twelfth aspect, the driving result evaluation means evaluates the degree of the driver's compliance with the presented drive plan and presents the evaluation to the driver. Based on the evaluation result, it is possible to confirm how safe the driver has performed.

  According to the vehicle navigation device of the thirteenth aspect, when the drive plan presenting means presents the expected arrival time at the destination, the driving result evaluating means evaluates the degree of compliance with the expected arrival time. The degree of compliance with the drive plan can be evaluated according to the difference from the arrival time.

  According to the vehicle navigation device of the fourteenth aspect, the driving result evaluation means evaluates the degree of compliance of the maximum speed when the drive plan presentation means presents the maximum speed when traveling on the road of the guide route. The degree of compliance with the drive plan can be evaluated according to the difference between the actual driving result and the maximum speed.

  According to the vehicle navigation device of the fifteenth aspect, the driving result evaluating means evaluates the degree of compliance with the average speed when the drive plan presenting means presents the expected average speed when traveling on the road of the guide route. Therefore, the degree of compliance with the drive plan can be evaluated according to the difference from the average speed of the result of actual driving.

  According to the vehicle navigation device of claim 16, when the drive plan presenting means presents a place to take a break and a rest time in the middle of the guide route, the driving result presenting means observes the rest place and the rest time. Since the degree is evaluated, the degree of compliance with the drive plan can be evaluated according to the difference between the actual driving result and the rest state.

  An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a functional block diagram showing the configuration of the vehicle navigation apparatus. The navigation device 1 includes a storage medium (driving characteristic information recording means, traffic information acquisition means) 2, a control unit (driving characteristic information recording means, traffic information acquisition means, drive plan presentation means, driving result evaluation means) 4, a display unit 6 It is configured with. The storage medium 2 is, for example, a DVD, CD, hard disk or the like, and road map information is stored in advance.

  The control unit 4 is constituted by a microcomputer including, for example, a CPU, a ROM, a RAM, and the like, and based on road map information stored in advance in the storage medium 2, a guide route to a destination as in a general navigation device. Search, or travel guidance for the route. Moreover, the control part 4 records driving information on a recording medium based on the vehicle operation information obtained from the various sensors 5 on the vehicle side. Further, the control unit 4 creates a drive plan, which will be described later, from the driving characteristic information and traffic information stored in the storage medium 2, or the traffic information acquired from the real-time information unit (traffic information acquisition means) 3, and displays the drive plan. This is presented to the driver by the unit 6 and the voice output unit 7. In addition, the control unit 4 evaluates / scores the result of driving according to the drive plan presented by the driver based on the vehicle operation information obtained from the various sensors 5, and displays the scoring result on the display unit 6 or Output to the audio output unit 7.

  The real-time information unit 3 includes, for example, a road traffic information communication system (VICS: registered trademark) communication device, a camera, a GPS (Global Positioning System), and the like, and acquires current road information from these. The vehicle operation information detected by the various sensors 5 includes vehicle speed, wheel speed, accelerator opening, brake operation, steering wheel horn angle, winker operation, horn operation, inter-vehicle distance (front and rear, left and right), wiper operation, G sensor, traction This is information for grasping what kind of vehicle operation / driving the driver is doing, such as control operation, ABS operation, transmission operation, and the like.

  Next, the operation of the present embodiment will be described with reference to FIGS. FIG. 2 is a flowchart showing a process of acquiring and storing driving information about driving actually performed by the driver and performing analysis after arrival at the destination. First, when the driver sets a starting point and a destination that are considered appropriate as a route for confirming his / her driving information (step S1), the control unit 4 stores driving information according to the traveling state of the vehicle. Start (step S2). In this case, the above route is preferably a route used for commuting, for example, where the frequency of driving is relatively high.

  While the vehicle is running, as with a general navigation device, it provides route information and recommended driving information (which may be prepared in advance at this stage) Based on the data that has been stored and analyzed at the time, notification of dangerous points in the route is performed (step S3). At the same time, operation information is stored in the hard disk of the storage medium 2 (step S4).

The driving information here is, for example, as follows.
・ Elapsed time (or time) from the start of driving
・ Congestion information and traffic regulation information in the route ・ Road width information ・ Information about the route (commuting routes, level crossings, etc.)
Steering, speed, accelerator opening, brake timing, traction (tire idling), turn signal timing When the vehicle arrives at the destination (step S5), the storage of the driving information is terminated, and the control unit 4 stores the stored driving information. Is started (step S6). The contents are described as the next step S7 in FIG. 2, but are as follows, for example.

・ Average vehicle speed ・ Transition state of vehicle speed (graphed for display)
・ Breaking point, curve point ・ Danger point (for example, near school), skidding point ・ Overspeed point with respect to road width (point that tends to give speed even with relatively narrow road width)
・ Sudden acceleration, sudden braking point ・ Point where audio operation was performed ・ Lane change, right and left turn point ・ Call incoming point When the analysis of driving information is completed, the analysis result is displayed on the display unit 6 (step S8). In this case, for example, “the transition state of the vehicle speed” is displayed in a manner as shown in FIG. 4 of Japanese Patent Application Laid-Open No. 2007-108926. Further, feedback determined so as to be added to the database for the risk points determined in the travel route from the analysis result (step S9 → S1 or S3) is fed back (step S9).

FIG. 3 is a flowchart showing processing contents centering on presentation of a drive plan for causing a driver to perform safe driving according to the gist of the present invention. First, when a destination is set (step S11), the control unit 4 determines a recommended route for performing safe driving to the destination based on traffic history information or traffic information acquired in real time and driver information. Search and present (step S12). Here, the traffic history information is, for example,
-Traffic jam information, speed regulation information, dangerous road information, resting place information, etc. These may be extracted from the data acquired by the processing shown in FIG. 2 described above, or may be set by direct input by the user.

The driver information (driving characteristic information) is, for example, the age and driving preference information of the driver, and the driving preference information is, for example,
-Information indicating individual driver's driving preferences, such as break timing, overspeed history, high speed priority, and winding priority. These may also be extracted from the data acquired by the processing shown in FIG. 2 or may be set by direct input by the user. The driver's age is a guideline for setting a break time.
In step S12, based on these pieces of information, the driver searches and presents a route that allows the driver to travel with a margin without overdoing the destination. Therefore, the route does not arrive at the destination efficiently in the shortest time, and becomes a route having redundancy.

  In the subsequent step S13, a drive plan that takes into account the safe road until arrival at the destination, the driving time for safe driving, etc. is set from each information, and in step S14, the timing for taking a break in the middle In addition, the driving plan is determined by adding driving speed for safe driving, rest time, and presenting it to the driver.

  FIG. 4 shows an example of a drive plan. For example, when leaving home at 8:00, first, after driving on a general road with an estimated time of 2 hours, it is set to get on the highway from the Δ △ interchange (estimated arrival time, 10:05). And when driving on a general road, 20km / h is presented as the average expected speed so that the maximum speed does not exceed 40km / h, and 1km of traffic congestion has occurred (real-time information). It is informed to the driver by the display on the display unit 6 and the output of the voice message by the voice output unit 7 that the distance is 13 km.

Also, while driving on the XX expressway, the average expected speed is 40 km / h, 10 km traffic jams occur so that the maximum speed does not exceed 80 km / h, and the total travel is 150 km. Inform the person. In addition, information for taking a break along the way is also presented. For example, take a break of 30 minutes or more when the time is 12:30, the service area is appropriate as a service area for taking a break, and then 5 minutes or more when the time is 14:30 Notify that taking a break, the XX parking area is appropriate as a service area for taking a break, and the like.
When the vehicle travels based on the drive plan presented as described above, it is also notified that the estimated arrival time at the destination is 16:00.

  Here, the maximum speed and the predicted average speed are set based on traffic history (or real-time) information and driver information. For example, if the average speed of the driver in the traffic history information is 20 km / h, it may be set as it is, or if the average speed is 30 km / h and traffic congestion is predicted or actually occurs May be set in consideration of them. The same applies to the maximum speed. If the maximum speed of the driver in the traffic history information is 40 km / h, the maximum speed may be set as it is. If the maximum speed is 50 km / h, the safety margin is taken into consideration. It may be set at a lower 40 km / h.

Reference is again made to FIG. The driver actually travels based on the presented drive plan (step S15). During traveling, the control unit 4 scores the driving state of the driver based on the following viewpoint (step S16). For example,
・ The degree of observance of the maximum speed and the average speed presented ・ The degree of observance of the presented break time and rest place (or time) ・ Isn't it overdue the expected arrival time (by excessive speed) (in this case) , Including real-time information such as traffic jams)
And based on the score in step S16, the control part 4 calculates and shows the driver | operator's score with respect to a driving | running | working result (step S17). As a result, the driver can grasp how safe he / she is driving.

  As described above, according to the present embodiment, when the destination is set, the control unit 4 of the navigation apparatus 1 calculates the guide route to the destination by referring to the driving characteristic information and the traffic information. At the same time, a drive plan for safe driving along the guide route is created and presented to the driver. Therefore, the driver can drive with sufficient margin to the destination by driving with reference to the presented drive plan.

  In addition, the control unit 4 obtains information on the timing of taking a break, information indicating the tendency of the traveling speed, information indicating the tendency of the type of road to be selected, and the age of the driver in the past driving history of the driver. Further, traffic jam information, speed regulation information, dangerous road information, resting place information, and the like based on past driving history are acquired and stored in the storage medium 2. Then, based on these pieces of information, it is possible to set the driving speed in accordance with the driver's tendency and the timing for recommending a break to the driver in the drive plan.

In addition, the control unit 4 selects a road on which the driver is presumed to run, sets the number of times to take a break according to age, time, etc., and based on past driving history, It is possible to create a drive plan by obtaining travel time based on the forecast of occurrence of regulations, avoiding dangerous roads, and selecting candidate rest places.
Then, the control unit 4 presents the maximum speed, the predicted average speed, the place to take a break and the rest time, and the estimated arrival time when traveling on the road of the guide route in the drive plan. Safe driving can be performed based on observing the speed and expected average speed, and a break can be taken at an appropriate timing. Furthermore, safe driving can be performed with reference to the estimated arrival time.

  In addition, the control unit 4 evaluates the degree of compliance with the drive plan presented by the driver and presents the evaluation to the driver. Specifically, since the degree of compliance with the expected arrival time, maximum speed, expected average speed, resting place and resting time is evaluated, the driver performed how safe he was based on the evaluation result. Can be confirmed.

The present invention is not limited to the embodiments described above and shown in the drawings, and the following modifications or expansions are possible.
The information presented as driving characteristic information and traffic information may be selected as appropriate according to the individual design. The same applies to items to be presented as a drive plan and items to evaluate the degree of compliance with driving according to the drive plan. Then, the evaluation of the degree of compliance itself may be performed as necessary.
When the desired arrival time at the destination is set by the user, the control unit 4 may present the departure time calculated backward from the desired arrival time. In this case, if the user departs at the presented time, the user can arrive at the time desired by the user while safely driving.
For example, a business model in which a prize is provided according to the score of the sender by transmitting the score evaluated by the navigation device 1 and presented in step S17 to a site on the Internet or the like may be implemented.

1 is a functional block diagram showing a configuration of a vehicle navigation device according to an embodiment of the present invention. Flowchart showing processing for storing and analyzing driving information for actual driving Flow chart showing processing contents centering on presentation of drive plan Diagram showing an example of a drive plan

Explanation of symbols

  In the drawings, 1 is a vehicle navigation device, 2 is a storage medium (driving characteristic information recording means, traffic information acquisition means), 3 is a real-time information section (traffic information acquisition means), and 4 is a control section (driving characteristic information recording means, Traffic information acquisition means, drive plan presentation means, driving result evaluation means).

Claims (16)

Driving characteristic information recording means for recording characteristic information related to the driving of the driver;
Traffic information acquisition means for acquiring traffic information on roads;
When a destination is set, a drive plan for calculating a guide route to the destination by referring to the driving characteristic information and the traffic information and performing safe driving along the guide route And a drive plan presenting means for presenting the drive plan to the driver.   2. The vehicle navigation apparatus according to claim 1, wherein the driving characteristic information recording means records information on timing for taking a break in the past driving history of the driver.   3. The vehicle navigation apparatus according to claim 1, wherein the driving characteristic information recording means records information indicating a tendency of a traveling speed in the past traveling history of the driver.   The vehicle according to any one of claims 1 to 3, wherein the driving characteristic information recording means records information indicating a tendency of a road type to be selected in the past driving history of the driver. Navigation device.   The vehicle navigation apparatus according to any one of claims 1 to 4, wherein the driving characteristic information recording means records the age of the driver.   6. The traffic information acquisition means acquires any one or more of traffic jam information, speed regulation information, dangerous road information, rest area information based on past driving history. The vehicle navigation device described in 1.   The vehicle navigation apparatus according to claim 1, wherein the drive plan presenting unit presents a maximum speed when traveling on a road of the guide route.   The vehicle navigation apparatus according to any one of claims 1 to 7, wherein the drive plan presenting unit presents an expected average speed when traveling on the road of the guide route.   The vehicular navigation device according to any one of claims 1 to 8, wherein the drive plan presenting unit presents a place to take a break and a break time in the middle of the guide route.   The vehicle navigation device according to claim 1, wherein the drive plan presenting unit presents an estimated arrival time for a predetermined point in the middle of the guide route.   11. The drive plan presenting means presents a departure time calculated backward from the desired arrival time when a desired arrival time at the destination is set by a user. Vehicle navigation system.   The driving result evaluation means for evaluating the degree of the driver's compliance with the presented drive plan and presenting the evaluation to the driver is provided. Vehicle navigation device.   13. The vehicle navigation system according to claim 12, wherein the driving result evaluation unit evaluates the degree of compliance of the predicted arrival time when the drive plan presenting unit presents the predicted arrival time to the destination. apparatus.   The driving result evaluating means evaluates the degree of compliance of the maximum speed when the drive plan presenting means presents the maximum speed when traveling on the road of the guide route. The vehicle navigation apparatus described.   13. The driving result evaluating means evaluates the degree of compliance with the average speed when the drive plan presenting means presents an expected average speed when traveling on the road of the guide route. The vehicle navigation device according to any one of claims 14 to 14.   The driving result evaluating means, when the drive plan presenting means presents a place to take a break and a rest time in the middle of the guidance route, evaluates the degree of compliance of the rest place and the rest time. The vehicle navigation device according to any one of claims 12 to 15.

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