WO2009107210A1 - 車両の運転評価装置、方法、及びコンピュータプログラム - Google Patents
車両の運転評価装置、方法、及びコンピュータプログラム Download PDFInfo
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- WO2009107210A1 WO2009107210A1 PCT/JP2008/053488 JP2008053488W WO2009107210A1 WO 2009107210 A1 WO2009107210 A1 WO 2009107210A1 JP 2008053488 W JP2008053488 W JP 2008053488W WO 2009107210 A1 WO2009107210 A1 WO 2009107210A1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/08—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to drivers or passengers
- B60W40/09—Driving style or behaviour
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/10—Longitudinal speed
- B60W2520/105—Longitudinal acceleration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/12—Lateral speed
- B60W2520/125—Lateral acceleration
Definitions
- the present invention relates to a vehicle driving evaluation device that evaluates driving of a vehicle driver in a car navigation system, a robot mounted on the vehicle, and the like.
- Patent Literature 1 calculates a driving situation by a driver of a vehicle based on detected vehicle information, and assumes that the vehicle has a predetermined personality. Originally, a configuration that expresses the virtual emotion of the personality according to the driving situation is disclosed.
- Patent Document 2 discloses a technique for analyzing an image acquired by an image acquisition unit such as a camera and determining information related to the content of the image such as an object or a landscape included in the image. .
- Patent Literature 1 it is preferable to output vehicle driving information based on information on the operation of the vehicle by driving the driver and the behavior of the vehicle by a virtual emotion or the like via the facial expression of the character. In addition, it is possible to provide entertainment to the vehicle occupant while evaluating the traveling state of the vehicle.
- evaluation of driving based on information outside the vehicle such as a road condition where the vehicle is traveling cannot be performed. That is, even when the driving of the driver and the behavior of the vehicle are traveling under the same conditions, for example, the road on which the vehicle is traveling is a general road, an expressway, or an alley in a congested residential area. It is desirable that the evaluation of the driving situation is suitably changed according to the conditions such as.
- an object of the present invention is to provide a vehicle driving evaluation device that performs driving evaluation based on vehicle operation information by a driver and road information on which the vehicle travels, and notifies the evaluation result. .
- a vehicle driving evaluation apparatus analyzes behavior of the driver based on behavior detection means for detecting the behavior of the vehicle being driven by the driver and the behavior of the vehicle.
- Driving analysis means road analysis means for analyzing the road conditions on which the vehicle travels,
- a driving condition evaluation unit that evaluates the driving condition of the vehicle based on a driving mode of the driver and a road condition on which the vehicle is driven.
- a computer program includes behavior detection means for detecting a behavior of a vehicle being driven by a driver, and driving analysis means for analyzing a driving mode of the driver based on the behavior of the vehicle. And a road analysis means for analyzing the road situation in which the vehicle travels, and a travel situation evaluation means for evaluating the travel situation of the vehicle based on the driving mode of the driver and the road situation in which the vehicle travels.
- a vehicle driving evaluation method analyzes a behavior detection step of detecting the behavior of a vehicle being driven by a driver, and a driving mode of the driver based on the behavior of the vehicle.
- a driving analysis step a road analysis step for analyzing a road condition on which the vehicle travels
- a driving condition evaluation step for evaluating a driving condition of the vehicle based on a driving mode of the driver and a road condition on which the vehicle travels.
- FIG. 1 is a block diagram conceptually showing the basic structure of a vehicle driving evaluation apparatus according to an embodiment of the present invention. It is a flowchart which shows the flow of the basic operation
- Embodiments according to the vehicle driving evaluation apparatus of the present invention include behavior detection means for detecting the behavior of the vehicle being driven by the driver, and driving analysis means for analyzing the driving mode of the driver based on the behavior of the vehicle.
- Road analyzing means for analyzing a road situation in which the vehicle travels
- a traveling situation evaluation means for evaluating the driving situation of the vehicle based on the driving mode of the driver and the road situation in which the vehicle travels.
- the vehicle driving evaluation apparatus of the present invention in the vehicle driven by the driver, based on the information indicating the driving mode of the driver (for example, driving safety) and the information indicating the situation of the road on which the vehicle travels, It becomes possible to evaluate the traveling state of the vehicle.
- the driving mode of the driver for example, driving safety
- the information indicating the situation of the road on which the vehicle travels It becomes possible to evaluate the traveling state of the vehicle.
- the driving aspect of the driver in the present embodiment is typically an evaluation result of the driving safety of the driver based on the behavior of the vehicle such as a change in acceleration. It can be an indicator of driver's driving safety based on operations such as a sudden handle.
- the road situation in the present embodiment refers to the situation of the road at least around the traveling vehicle, such as the complexity of the road scenery, which will be described in detail later.
- the driving safety of the driver is analyzed by the driving analysis unit based on the information indicating the behavior of the vehicle that is always acquired by the behavior detection unit.
- the aspect of the safety analysis by the driving analysis means can be performed by, for example, some numerical addition / subtraction processing defined as the driving safety degree as will be described in detail later.
- a predetermined driving safety is detected at a timing at which a behavior that is determined to be dangerous driving (or determined to be safe driving) is detected in the vehicle behavior that is constantly detected.
- a numerical value indicating the degree is added or subtracted.
- the aspect of analysis of driving safety is not necessarily limited to such an aspect, and it is possible to obtain an index that can suitably indicate the driving safety of the driver by some method. More preferably, it may be any mode capable of analyzing the safety of driving over time.
- an index that can suitably indicate the road condition on which the vehicle is traveling is preferably analyzed by the road analyzing means at all times during traveling.
- this road condition analysis is performed by adding or subtracting some numerical value that serves as an indicator that can indicate the complexity of the road.
- the traveling condition evaluation means evaluates the traveling condition of the vehicle. It is preferable that such an evaluation mode of the driving situation is preferably performed based on information resulting from the driving of the driver and information resulting from the situation of the road on which the vehicle is running, and will be described in detail later as an example. Although an evaluation method using a biaxial graph is conceivable, it is not necessarily limited to these modes, and any mode in which evaluation based on both types of information can be performed by any method may be used.
- the driving state of the vehicle can be evaluated. For example, even if it is evaluated as “relatively dangerous” according to the driving situation alone, is it an expressway where the outside world is relatively open, or is it a narrow road such as a shopping street? Depending on the situation, the evaluation result can be changed in various ways. Therefore, it is possible to evaluate the traveling situation in association with the outside (external world) of the vehicle. In other words, not only the driving mode of the driver (in other words, information closed inside the vehicle) but also the current driving road situation (in other words, information outside the vehicle) It is possible to perform evaluation according to the aspect or more actual driving conditions.
- the vehicle driving evaluation apparatus is typically a so-called stand-alone apparatus that is mounted or installed in a vehicle and operates alone, and includes behavior detection means and road analysis means.
- An apparatus comprising driving analysis means and running condition evaluation means.
- it is incorporated into a device such as a digital tachograph or a car navigation system or the vehicle itself, and receives an input from a behavior detecting means that can detect the behavior of the vehicle suitably provided in the device. It may be configured in such a manner that it is a so-called built-in type for other devices, such as performing analysis.
- One aspect of the vehicle driving evaluation apparatus of the present invention is characterized in that the traveling state evaluation means is based on at least two-axis graph information about the driving state of the driver and the road state on which the vehicle travels, respectively. Classify and evaluate the driving status of vehicles.
- an evaluation mode is a graph in which the road conditions in which the vehicle is traveling and the driving safety of the driver are coordinates that are orthogonal to each other. When the indicated coordinates fall within a predetermined area, the evaluation is performed according to the predetermined area.
- the “predetermined area” is an area on the biaxial graph described above that is divided by road conditions and driving safety coordinates (or some numerical value), and more preferably a plurality of areas are provided. Is preferred. Each of such “predetermined areas” is provided with a plurality of corresponding evaluation results, and when the road conditions and driving safety coordinates fall within the predetermined areas, the corresponding evaluation results are read. It may be configured.
- the driving analysis unit analyzes driving safety as a parameter based on the driving mode
- the road analyzing unit is configured as a road situation where the vehicle travels. Analyze the complexity of the road.
- the driving safety level is an index that favorably evaluates the driving mode of the driver as described above.
- the acceleration of the vehicle is constantly monitored while the acceleration of the vehicle is constantly monitored.
- the detected driving is determined as dangerous driving, and when driving determined to be dangerous driving is not detected, it is determined that the driving is safe.
- a numerical value that is, a driving safety level
- a safe driving that is, a dangerous driving is performed for a predetermined period. If it is configured so that the driving safety level is gradually added, it is possible to evaluate the current driver's driving from the driving safety level and obtain the transition of the driving safety level.
- the driving tendency of the driver over time can be suitably evaluated.
- the aspect of the analysis of the driving safety level is not necessarily limited to such an aspect, and it is possible to acquire an index that can suitably indicate the driving safety of the driver by any method, More preferably, it may be an arbitrary mode capable of analyzing driving safety over time.
- the complexity of the road is, for example, the complexity of the road scenery caused by the road being run is an open road such as an urban road, a forest road, or a highway, or the like (or Monotonous).
- the road has a high degree of complexity (that is, a road with a complicated landscape outside the vehicle, such as a cityscape or a road in a forest), the vehicle occupant tends to be interested in the landscape outside the vehicle, and the complexity is low.
- roads it is considered that the occupant's consciousness tends to concentrate on driving and talking in the car rather than outside the car.
- an analysis may be performed in consideration of obstacles when the vehicle travels, such as surrounding vehicles and traffic, or the complexity of the road shape and road gradient.
- the aspect of the road complexity analysis by the road analysis means can be performed, for example, by adding or subtracting some numerical value defined as the road complexity.
- some numerical value defined as the road complexity typically, in some information indicating the road condition behavior on which the vehicle that is always detected travels, the road condition determined to be complicated (or determined to be monotonous)
- a numerical value indicating a predetermined road complexity is added or subtracted.
- the aspect of the road complexity analysis is not necessarily limited to such an aspect, and it is possible to obtain an index that can suitably indicate the road complexity by any method.
- it may be an arbitrary mode capable of acquiring the road complexity over time.
- Such an aspect of determining the complexity may be configured to be performed by acquiring and analyzing a landscape image outside the vehicle, or by acquiring and analyzing map information, as will be described in detail later.
- the vehicle driving evaluation device further includes output means for performing output based on the evaluation result of the traveling state of the vehicle.
- operator can be suitably alert
- the present invention is not necessarily limited to these modes, and may be any mode in which notification based on the above-described evaluation result can be made to the passenger by some method.
- a plurality of types of emotions possessed by a virtual personality are allocated corresponding to each of the travel situations classified into the plurality of ways, and the output means includes at least one of the plurality of emotions. It may be configured to output two emotions.
- the “virtual personality” means, for example, at least a vehicle driving situation (that is, a driver's personality) or an assumption that the vehicle has a personality, or a vehicle occupant. This is to indicate a subject who can change emotions according to driving safety and road conditions on which the vehicle travels.
- the “emotion” of the virtual personality is calculated according to the driving situation, for example, the driver feels positive about the safe driving and the ashamed or fear of the dangerous driving. is there. According to such a configuration, it is possible to add amusement when notifying the evaluation of the traveling state of the vehicle, and more effective notification can be realized.
- Such “emotions of a virtual personality” are output by, for example, the action of a character displayed on a display that reacts according to the feeling, an announcement by voice through a speaker, or the action of a robot. You may be comprised so that. According to such a configuration, it is possible to add further entertainment when notifying the evaluation of the traveling state of the vehicle, and it is possible to realize more effective notification.
- the vehicle by configuring the vehicle to notify the driver of the evaluation result, it is possible to notify the driver of feelings about the driving situation that other occupants of the vehicle are supposed to hold, and the driver can drive in response to the notification.
- An opportunity to change or improve the aspect can be suitably provided.
- Another aspect of the vehicle driving evaluation apparatus of the present invention further includes image acquisition means for acquiring an image of the scenery around the vehicle, and the road analysis means is based on the scenery image around the vehicle, The complexity of the road for analyzing the complexity of the road is analyzed as a road situation where the vehicle travels.
- the complexity related to the traveling mode of the road from the image of the scenery outside the vehicle acquired by the image acquisition means.
- it may be configured to detect information on obstacles when the vehicle travels such as surrounding vehicles and traffic of people from the scenery image outside the vehicle, and also analyze the complexity.
- the acquired image is divided into a plurality of image pieces, and color analysis processing and fractal are performed on each image piece. This is performed by dimension analysis processing and artifact amount recognition processing.
- a landscape included in each image piece is classified by a combination of analysis results obtained by the above processing, and a feature of the landscape included in the entire image is determined based on the classification result.
- Another aspect of the vehicle driving evaluation apparatus of the present invention further includes map information acquisition means for acquiring at least map information around the vehicle, wherein the road analysis means is based on the map information around the vehicle.
- the complexity of the road is analyzed as the road condition on which the vehicle travels.
- the map information is more preferably map information including road shape information, gradient information, surrounding landscape information, etc., and at least by analyzing the map information, the complexity of the road can be reduced as described above. Any mode may be used as long as it is suitably obtained.
- Embodiments of the computer program according to the present invention include behavior detection means for detecting a behavior of a vehicle being driven by a driver, driving analysis means for analyzing a driving mode of the driver based on the behavior of the vehicle,
- a vehicle driving evaluation apparatus comprising: road analyzing means for analyzing a road condition for traveling; and a driving condition evaluation means for evaluating a driving condition of the vehicle based on a driving mode of the driver and a road condition of the vehicle traveling.
- the computer program is read from a recording medium such as a ROM, a CD-ROM, a DVD-ROM, and a hard disk that stores the computer program, and executed. If the computer program is downloaded to a computer via communication means and then executed, the above-described embodiment of the vehicle driving evaluation apparatus of the present invention can be realized relatively easily.
- the embodiment of the computer program of the present invention can also adopt various aspects.
- Embodiments of the computer program product of the present invention include behavior detection means for detecting the behavior of a vehicle being driven by a driver, driving analysis means for analyzing a driving mode of the driver based on the behavior of the vehicle, and the vehicle
- a vehicle driving evaluation device comprising: road analyzing means for analyzing a road situation where the vehicle travels; and a driving situation evaluation means for evaluating the driving situation of the vehicle based on a driving mode of the driver and a road situation where the vehicle runs.
- a computer program for controlling the computer provided in the above-described configuration, and causing the computer to function as at least part of the behavior detecting means, the road analyzing means, the driving analyzing means, and the traveling condition evaluating means.
- the computer program product of the present invention if the computer program product is read into a computer from a recording medium such as a ROM, a CD-ROM, a DVD-ROM, and a hard disk storing the computer program product, or
- a recording medium such as a ROM, a CD-ROM, a DVD-ROM, and a hard disk storing the computer program product
- the computer program product which is a transmission wave
- the computer program product may include a computer-readable code (or computer-readable instruction) that functions as an embodiment of the information vehicle driving evaluation apparatus of the present invention described above. .
- the embodiment of the computer program product of the present invention can also adopt various aspects.
- Embodiments according to the vehicle driving evaluation method of the present invention include a behavior detection step of detecting a behavior of a vehicle being driven by a driver, a driving analysis step of analyzing a driving mode of the driver based on the behavior of the vehicle, and And a road analysis step for analyzing a road situation in which the vehicle travels, and a travel situation evaluation step for evaluating the travel situation of the vehicle based on the driving mode of the driver and the road situation in which the vehicle travels.
- the driving mode of the driver in the vehicle driven by the driver in the same manner as the vehicle driving evaluation device of the present invention described above, according to the vehicle driving evaluation device of the present invention, the driving mode of the driver in the vehicle driven by the driver. It is possible to evaluate the traveling state of the vehicle based on the information indicating the vehicle and the information indicating the state of the road on which the vehicle is traveling.
- the vehicle driving evaluation apparatus includes the behavior detection means, the road analysis means, the driving analysis means, and the traveling state evaluation means.
- the vehicle driving evaluation method according to the present embodiment includes the behavior detection step, the road analysis step, the driving analysis step, and the traveling state evaluation step.
- the computer program according to the present embodiment causes the computer to function as a vehicle driving evaluation apparatus according to the present embodiment. Accordingly, it is possible to evaluate the traveling state of the vehicle by driving the driver using the road information on which the vehicle is traveling and the behavior information of the vehicle, and notify the driver and the occupant of the evaluation result.
- FIG. 1 is a block diagram conceptually showing the basic structure of the vehicle driving evaluation apparatus in this example.
- the driving evaluation apparatus 1 includes an acceleration sensor 101, a sensor input unit 102, a driving analysis unit 103, a camera 104, a video analysis unit 105, a road analysis unit 106, and a traveling situation calculation unit 107.
- the information output unit 108 and the information recording unit 109 are provided.
- the camera 104 may be configured separately from the driving evaluation apparatus 1 in addition to the form integrated with the driving evaluation apparatus 1. In that case, an image photographed by the camera 104 is transmitted to the video analysis unit 105 via some means such as wired or wireless.
- the acceleration sensor 101 is a specific example of the “behavior detection unit” in the configuration example of the present invention, and can detect the acceleration of a vehicle (not shown) on which the driving evaluation device 1 is mounted and output it to the sensor input unit 102.
- a 3-axis acceleration sensor is used. More specifically, at least the longitudinal and lateral accelerations of the vehicle detected by the acceleration sensor 101 are handled as time-series data of the acceleration of the vehicle by the sensor input unit 102, and thus are held for a predetermined time. . Alternatively, the acceleration data is stored in the information recording unit 109 described later.
- the driving analysis unit 103 is a specific example of the “driving analysis means” in the configuration example of the present invention, and numerically analyzes the driving safety of the driver as driving safety in the time series data of the stored acceleration. . More specifically, it is determined that an acceleration exceeding a predetermined threshold is due to “dangerous driving”. For example, as a threshold value of acceleration determined to be “dangerous driving”, the acceleration is 0.4 G in front of the vehicle for sudden acceleration, 0.2 G acceleration to the rear of the vehicle for sudden braking, An acceleration of 0.5 G is set in the left-right direction of the vehicle. In the time-series data of acceleration that is constantly detected, the value of the driving safety level is increased or decreased based on the determination of driving.
- the range of the driving safety degree AN is set as 0 to 100, and when the value exceeds the range, the value that can be taken within the range is limited (for example, 0 is the lower limit and 100 is the upper limit).
- K is a predetermined numerical value defined as a driving risk index.
- the value of K is subtracted (for example, K ⁇ 2).
- the driving safety degree AN approaches 0, since dangerous driving has not been performed for a predetermined time, the value of K is gradually added, and the value of the driving safety degree AN also starts to increase.
- the timing at which it is determined as “dangerous driving” in the detection of acceleration is shown by a bar graph. In the present embodiment, the driving safety level is analyzed in such a manner.
- the camera 104 is a specific example of the “image acquisition unit” in the configuration example of the present invention, and is typically provided so that an image in front of the vehicle can be taken.
- the image taken by the camera 104 is analyzed by the video analysis unit 105, and the feature of the landscape in the image data ahead of the vehicle is analyzed by the method described in Patent Document 2, for example.
- the analyzed feature data of the scenery is handled as time-series data of the scenery outside the vehicle in the video analysis unit 105, and is thus held for a predetermined time.
- the acceleration data is stored in the information recording unit 109 described later.
- the road analysis unit 106 is a specific example of the “road analysis unit” in the configuration example of the present invention, and in the time-series data of the stored road landscape, the complexity of the road landscape or the complexity of the road shape Are numerically analyzed as road complexity. More specifically, the scenery outside the vehicle is classified based on the landscape feature data in the analyzed road landscape image, and the road complexity value is increased or decreased based on such classification. In such an aspect, for example, a flat and open road such as an expressway is determined as a “monotonous road”, and on the other hand, a road such as a cityscape, a forest or a tree-lined road is determined to be a “complex road”. Is done. Landscape images outside the vehicle are classified as “monotonous road” and “complex road” when the features of the landscape satisfy the predetermined conditions, and “Other” when both conditions are not satisfied. Classified as
- the range of the road complexity BN is set as 0 to 100, and when the value exceeds the range, the value that can be taken within the range is limited (for example, 0 is the lower limit and 100 is the upper limit).
- the road condition on which the vehicle travels is monotonous as the road complexity BN approaches 0, and it is determined that the road complexity is closer as 100.
- S is a predetermined numerical value defined as a road complexity index, and when it is determined to be a “monotonous road” as described above, the value of S is subtracted (for example, S ⁇ 1). The on the other hand, when it is determined that the road is a “complex road”, the value of S is added (for example, S + 1). In addition, when it is classified as “other” that does not correspond to “monotonous road” or “complex road”, the value of S does not change.
- the traveling state calculation unit 107 is based on the assumption that the vehicle has a personality, for example, depending on the traveling state of the vehicle, The emotions of a virtual personality, such as those based on the assumption of what is provided, are calculated.
- the analysis results are plotted on a biaxial graph in which the result of the driving safety analysis is the vertical axis and the result of the road complexity analysis is the horizontal axis.
- the emotion calculation mode is set corresponding to the area.
- “cheerful”, “relief”, “fear”, “ ⁇ ” are output.
- the above four are shown as examples of emotions, but the present invention is not limited to this. For example, other words such as “rejoice”, “relax”, “get angry”, and “shake” may be used.
- a combination of emotions allocated based on the driving safety degree AN and emotions allocated based on the road complexity BN (that is, according to the mapping on the biaxial graph), the situation in the vehicle (that is, It is possible to output emotion according to the driving mode by the driver) and the situation outside the vehicle (that is, the complexity of the road scenery outside the vehicle).
- An example of an emotion output mode based on such evaluation will be described. For example, in a driving situation in which both the driving safety degree AN and the road complexity BN are high, it is assumed that the vehicle occupant can afford to enjoy the scenery outside the vehicle at the same time as driving safely, and a “cheerful” emotion is output.
- FIG. 5 is a graph of FIG. 4 showing time series data of the traveling state of a vehicle traveling under certain conditions in a configuration in which the corresponding emotion is output by the driving safety degree AN and the road complexity BN. It is a plot. That is, it is a specific example showing the evaluation result of the traveling state of the vehicle.
- the vehicle starts from a state where both the driving safety degree AN and the road complexity BN are 50 (that is, the center point in the graph of FIG. 5).
- the vehicle is driving safely.
- the driving safety degree AN decreases due to “dangerous driving” in which sudden braking is continuously performed by the driver.
- “ ⁇ ” for a driver who performs “dangerous driving” on a “complex road” such as an urban area, and an emotion to call attention are output (2 in the figure).
- a feeling of “fear” that is scared or frightened of an accident is output (3 in the figure).
- the driver's driving safety degree AN gradually increased, he was no longer interested in the outside world, and was relieved to sleep, enjoy conversations and think. Emotions are output (4 in the figure).
- the emotions output by the driving situation calculation unit 107 are not four ways of “cheerful”, “relief”, “fear”, and “ ⁇ ” as shown in FIG. 4, but as shown in FIG. 6, for example.
- the emotion level may be increased as the distance from the origin increases.
- it may be configured using an emotion map divided into more detailed emotions based on the values of the driving safety degree AN and the road complexity BN.
- FIG. 7 is an example of such an emotion map.
- Such an emotion map may be configured to perform a predetermined output other than the emotion output in accordance with the analyzed values of the driving safety degree AN and the road complexity BN.
- a predetermined output other than the emotion output in accordance with the analyzed values of the driving safety degree AN and the road complexity BN.
- an event corresponding to the area is triggered in accordance with a change in value in a predetermined area.
- data such as event trigger frequency, driver driving habits, and robot personality described later is stored and used in the information recording unit 109, so that the arrangement, type, or The frequency of occurrence may be changed.
- the information output unit 108 is a specific example of the “output unit” in the configuration example of the present invention, and notifies the passengers of the vehicle including the driver of the emotions calculated by the driving state calculation unit 107.
- it may be a display, a speaker, or a robot that performs an operation according to the emotion.
- the information output unit 108 provides notification to the vehicle occupant or driver only by means of character information and image information displayed on the display, music or voice via a speaker, or robot operation. For example, various modes may be adopted.
- the mode of notification by the operation of the robot is performed by the operation of the robot corresponding to each emotion output by the traveling state calculation unit 107 (that is, each emotion can be suitably expressed).
- each emotion can be suitably expressed.
- at least a vehicle driver or a passenger who receives such a notification is configured to perform notification with an operation that can recall the feelings such as “safety” or “fear” as described above. It ’s good.
- the individuality of the robot described above there is a difference in the mode of operation corresponding to each emotion, and in the case of a robot having variations in individuality, notification is made corresponding to the same emotion under the same conditions.
- the mode of operation performed by each is different (still, the emotions that can be recalled are at least the source of output).
- the information recording unit 109 is typically a memory, and includes an acceleration sensor 101, a sensor input unit 102, a driving analysis unit 103, a camera 104, a video analysis unit 105, a road analysis unit 106, a travel condition calculation unit 107, and an information output unit.
- an acceleration sensor 101 In conjunction with each unit 108, the detection result, analysis result or calculation result in each unit is stored. In addition, the stored data is output in conjunction with the mode of analysis or calculation in each unit.
- the virtual personality has the evaluation result of the driving situation of the vehicle calculated based on the driving safety of the driver and the road complexity on which the vehicle travels, as in the configuration example. It is possible to notify the passenger of the vehicle in the form of emotion.
- FIG. 8 is a flowchart conceptually showing a flow of the basic operation related to the evaluation of the traveling state of the vehicle by the driving evaluation apparatus 1 according to this embodiment.
- each unit is initialized (step S101).
- the acceleration sensor 101 is initialized and a new acceleration detection is started.
- transmission of detected acceleration data to the sensor input unit 102 is started.
- initialization of acceleration time series data held in the sensor input unit 102 is performed.
- shooting of the camera 104 is started, and transmission of the video shot by the video analysis unit 105 is started.
- initialization of time-series data of road scenery held in the video analysis unit 105 is performed.
- Data initialization is also performed in each of the driving analysis unit 103, the road analysis unit 106, and the traveling state calculation unit 107.
- step S101 photographing of an image ahead of the vehicle (step S102) and detection of acceleration of the vehicle (step S103) are performed.
- a landscape image captured by the camera 104 is transmitted to the video analysis unit 105, and is stored as time-series data of the image in the video analysis unit 105 or the information recording unit 109.
- the acceleration detected by the acceleration sensor 101 is transmitted to the sensor input unit 102 and stored as acceleration time-series data in the sensor input unit 102 or the information recording unit 109.
- each time-series data is stored for at least a predetermined period (for example, the past 5 minutes) because it is used for analysis described later.
- Such a detection mode is preferably always performed while the vehicle is running (at least while the driving evaluation device 1 is activated), and is particularly limited to the order of convenience as described in FIG. It may be performed in an arbitrary manner.
- step S104 the driving safety degree AN (step S104) and the road complexity BN are calculated (step S105) from the time series data of the acceleration and the time series data of the landscape image stored in the information storage unit, respectively.
- the driving analysis unit 103 analyzes the driving safety degree AN at a predetermined cycle or timing.
- the driving analysis unit 103 analyzes the road complexity BN at a predetermined cycle or timing.
- the analyzed driving safety degree AN and road complexity BN are transmitted to the traveling state calculation unit 107. It is preferable that such an analysis mode is always performed at a predetermined cycle or timing while the vehicle is running (at least while the driving evaluation device 1 is activated), and for convenience as shown in FIG.
- the order is not particularly limited, and may be performed in any manner.
- the driving state calculation unit 107 Upon receiving the analysis results of the driving safety degree AN and the road complexity BN, the driving state calculation unit 107 calculates emotions according to the driving state of the vehicle (step S106). The calculated emotion is output via the information output unit 108 in an output step (step S108) described later. At this time, typically, the output of the emotion is continuously performed as long as the same emotion is continuously calculated. That is, in the calculation of step S106, it is determined whether or not the calculated emotion has changed (step S107).
- step S107: Yes when a change occurs in the calculated emotion (step S107: Yes), the newly calculated emotion is output (step S108). On the other hand, when there is no change in the calculated emotion (step S107: No), the new change is not output (that is, the output of the emotion of the previous calculation result is continued).
- step S109: Yes when operation
- FIG. 9 is a block diagram conceptually showing the basic structure of the vehicle driving evaluation apparatus in this modification.
- the same symbol is attached
- the scenery image outside the vehicle acquired by the camera 104 is analyzed by the video analysis unit 105 for the feature of the scenery in the image. Based on the analysis result, the road analysis unit 106 classifies the scenery outside the vehicle and calculates the road complexity BN.
- a map information acquisition unit 110 which is a specific example of the “map information acquisition unit” in the present invention is provided and acquired by the operation of the map information acquisition unit 110.
- map information around the vehicle typically, map information using GPS or the like
- road information such as the scenery around the vehicle or the shape and gradient of the road on which the vehicle runs is acquired.
- the road analysis unit 106 calculates the road complexity BN by calculating based on the road information or by calculating the road information and the analysis result of the landscape image described above.
- the map information acquisition unit 110 is a navigation device that acquires the above-described map information by communication with the outside.
- the road analysis unit 106 performs calculation based on the obstacle information, or calculates the obstacle information together with the above-described landscape image analysis result and road information. Is performed to calculate the road complexity BN.
- the road complexity BN may be determined by an arbitrary combination of SA, SB and SC, and the manner of calculating the road complexity BN depends on at least one of SA, SB and SC. May be configured.
- the road complexity index SA analyzed from the landscape image in this modification is defined as a numerical value similar to the road complexity index S in the configuration example.
- the road complexity index SB analyzed from the obstacle information in this modification is defined as a predetermined numerical value that is added or subtracted by the determination based on the number of obstacles around the vehicle detected as described above. For example, when it is determined that the number of obstacles detected around the vehicle is equal to or less than a predetermined threshold, the value of SB is subtracted (for example, SB-1). On the other hand, when it is determined that the value is equal to or greater than the predetermined threshold, the value of SB is added (for example, SB + 1). Alternatively, when the number falls within a predetermined range, neither addition nor subtraction is performed.
- the road complexity index SC analyzed from the map information in this modified example is a predetermined numerical value that is added or subtracted by determination based on road information such as the shape and gradient of the road on which the vehicle travels obtained as described above. Defined. For example, the value of SC is added (for example, SC + 1) when it is determined that the shape of the road on which the vehicle travels is complicated due to the travel of the vehicle, such as a continuous or steep curve. On the other hand, when it is determined that the road shape is relatively monotonous without such a complicated shape, the value of SC is subtracted (for example, SC-1).
- the virtual personality has the evaluation result of the driving situation of the vehicle calculated based on the driving safety of the driver and the road complexity on which the vehicle runs, as in the configuration example. It is possible to notify the passenger of the vehicle in the form of emotion. According to the present modification, the accuracy of the calculated road complexity can be improved by combining a plurality of road complexity indexes when calculating the road complexity.
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Abstract
Description
前記ドライバの運転の態様及び前記車両の走行する道路状況に基づき、前記車両の走行状況を評価する走行状況評価手段とを備える。
前記ドライバの運転の態様及び前記車両の走行する道路状況に基づき、前記車両の走行状況を評価する走行状況評価工程とを備える。
本発明の実施例における車両の運転評価装置の構成例を、図1から図6を参照して説明する。ここに図1は、本実施例に係る車両の運転評価装置の基本構成を概念的に示すブロック図である。
続いて、図8を参照して、本実施例に係る運転評価装置1による車両の走行状況の評価に係る基本動作について説明を進める。ここに、図8は、本実施例に係る運転評価装置1による車両の走行状況の評価に係る基本動作の流れを概念的に示すフローチャートである。
本発明の実施例における車両の運転評価装置の変形例を、図9を参照して説明する。ここに図9は、本変形例に係る車両の運転評価装置の基本構成を概念的に示すブロック図である。尚、他の図に記載されるものと同一の構成要素に対しては、同一の記号を付して記載している。
Claims (9)
- ドライバが運転中の車両の挙動を検出する挙動検出手段と、
前記車両の挙動に基づき、前記ドライバの運転の態様を解析する運転解析手段と、
前記車両の走行する道路状況を解析する道路解析手段と、
前記ドライバの運転の態様及び前記車両の走行する道路状況に基づき、前記車両の走行状況を評価する走行状況評価手段と
を備えることを特徴とする車両の運転評価装置。 - 前記走行状況評価手段は、前記ドライバの運転の態様及び前記車両の走行する道路状況を夫々軸とする少なくとも二軸のグラフ情報に基づき、前記車両の走行状況を複数通りに分類して評価することを特徴とする請求の範囲第1項に記載の車両の運転評価装置。
- 前記運転解析手段は、前記運転の態様に基づくパラメータとして運転安全度を解析し、
前記道路解析手段は、前記車両の走行する道路状況として、前記道路の複雑度を解析することを特徴とする請求の範囲第2項に記載の車両の運転評価装置。 - 前記車両の走行状況の評価結果に基づく出力を行う出力手段を更に備えることを特徴とする請求の範囲第3項に記載の車両の運転評価装置。
- 前記複数通りに分類された走行状況の夫々に対応して、仮想の人格が有する複数種類の感情が割り振られ、前記出力手段は、前記複数の感情の中から少なくとも一つの感情の出力を行うことを特徴とする請求の範囲第4項に記載の車両の運転評価装置。
- 前記車両の周囲の風景の画像を取得する画像取得手段を更に備え、
前記道路解析手段は、前記車両の周囲の風景の画像に基づき、前記車両の走行する道路状況として、前記道路の複雑度を解析することを特徴とする請求の範囲第2項に記載の車両の運転評価装置。 - 少なくとも車両の周囲の地図情報を取得する地図情報取得手段を更に備え、前記道路解析手段は、前記車両の周囲の地図情報に基づき、前記車両の走行する道路状況として、前記道路の複雑度を解析することを特徴とする請求の範囲第2項に記載の車両の運転評価装置。
- ドライバが運転中の車両の挙動を検出する挙動検出手段と、
前記車両の挙動に基づき、前記ドライバの運転の態様を解析する運転解析手段と、
前記車両の走行する道路状況を解析する道路解析手段と、
前記ドライバの運転の態様及び前記車両の走行する道路状況に基づき、前記車両の走行状況を評価する走行状況評価手段と
を備える車両の運転評価装置に備えられたコンピュータを制御するコンピュータプログラムであって、
該コンピュータを前記挙動検出手段、前記道路解析手段、前記運転解析手段、前記走行状況評価手段の少なくとも一部として機能させることを特徴とするコンピュータプログラム。 - ドライバが運転中の車両の挙動を検出する挙動検出工程と、
前記車両の挙動に基づき、前記ドライバの運転の態様を解析する運転解析工程と、
前記車両の走行する道路状況を解析する道路解析工程と、
前記ドライバの運転の態様及び前記車両の走行する道路状況に基づき、前記車両の走行状況を評価する走行状況評価工程と
を備えることを特徴とする車両の運転評価方法。
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PCT/JP2008/053488 WO2009107210A1 (ja) | 2008-02-28 | 2008-02-28 | 車両の運転評価装置、方法、及びコンピュータプログラム |
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