JP2007203750A - Displaying device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a displaying device for vehicle which properly displays vehicle information in response to the characteristics of a driver. <P>SOLUTION: This displaying device for vehicle displays information regarding a vehicle, and has a storage means, a driver characteristic judging means which judges the characteristics of a driver, a driver segment selecting means, an information display layout selecting means, and an information displaying means. In this case, the storage means stores the data of a plurality of driver segments which are classified depending on the differences in the characteristics of drivers, and the data of a plurality of information displaying layouts which are specified while taking the importance degree of the information under consideration for each driver segment. The driver segment selecting means selects the driver segment in response to the judged characteristics of the driver based on the data of the driver segments. The information displaying layout selecting means selects the information display layout in response to the selected driver segment based on the data of the information displaying layout. The information displaying means displays information regarding the vehicle by the selected information displaying layout. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a vehicle display device, and more particularly to a vehicle display device that displays information related to a vehicle.

The vehicle is generally provided with a vehicle display device for displaying information related to the vehicle on a display, a meter or the like provided in the vehicle interior. Examples of the vehicle-related information include meter-related information such as a vehicle speed and a gasoline remaining amount, and information on setting contents of in-vehicle devices such as an air conditioner and an audio. In recent years, there are cases where a centralized display that displays various information in a concentrated manner is mounted on a vehicle. Such a centralized display can obtain a large amount of information by one line of sight movement, and can improve safety and convenience.
Patent Document 1 discloses a vehicle display device in which the display content is changed in accordance with the vehicle speed so that the visibility is further improved.

JP 2004-136823 A

  Here, the information that the driver considers important differs depending on the driver. For example, some drivers care about the details of audio settings, while others just want to listen to music. Display of audio settings is important for the former driver, but not for the latter driver. The speedometer is indispensable as information, but the driver who thinks that the car is just a moving means and the driver who drives while paying attention to the vehicle speed so as not to be caught by the signal also has the importance of the speedometer. Different.

  However, conventional vehicle display devices do not take into account such differences in drivers. In other words, the driver cannot select information to be displayed on a conventional display or meter such as an air conditioner or audio. Therefore, depending on the driver, there is a problem that information with low importance is preferentially provided, or conversely, information with high importance is inconspicuous.

In order to solve such a problem, the present inventor researches the difference in recognition of importance by the driver, and the characteristics of the driver such as the driving style and the personality of the driver are related to the importance of the information to be displayed. I got the knowledge. The inventor tried to solve the above-described problems based on such knowledge. On the other hand, a method for evaluating the characteristics of such a driver is generally known. However, in the conventional method, a very large number of questions are presented and a plurality of evaluation levels (for example, five-level evaluation) are provided for each question. To answer. Thus, it is very time-consuming to present a very large number of questions and make them answer at a plurality of stages, and it is not realistic to apply to an on-vehicle display device.
SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems of the prior art, and an object thereof is to provide a vehicle display device that appropriately displays vehicle information in accordance with the characteristics of a driver.

In order to achieve the above object, the present invention provides a display device for a vehicle that displays information related to a vehicle, the data of a plurality of driver segments classified according to the difference in driver characteristics, and the information for each driver segment. A storage means for storing data of a plurality of information display layouts defined in consideration of importance, a driver characteristic determination means for determining driver characteristics, and a driver characteristic determined based on driver segment data Driver segment selecting means for selecting a corresponding driver segment, information display layout selecting means for selecting an information display layout corresponding to the selected driver segment based on data of the information display layout, and the selected information display layout And information display means for displaying information about the vehicle It is characterized by a door.
In the present invention configured as described above, the information display layout is defined in consideration of the importance of information for each driver segment. In the present invention, the driver segment is selected according to the driver characteristic determined by the driver characteristic determination means. Accordingly, an appropriate information display layout is selected in consideration of the importance of information according to the characteristics of the driver, and the information display means displays information about the vehicle by this information display layout. As a result, according to the vehicle display device of the present invention, vehicle information can be appropriately displayed according to the characteristics of the driver.

In order to achieve the above object, the present invention provides a display device for a vehicle that displays a plurality of information relating to a vehicle, the data of a plurality of driver segments classified according to the difference in driver characteristics, and the driver segments. A storage means for storing information importance data defining the importance of information and layout rule data defining the relationship between the information importance and the display layout, and driver characteristic determination for determining driver characteristics A driver segment selection means for selecting a driver segment according to the determined driver characteristics based on the means, the driver segment data, and the driver segment selected based on the information importance data and the layout rule data Display layout determining means for determining an optimal information display layout according to Is characterized by having an information display means for displaying information relating to the vehicle by the determined information display layout, the.
In the present invention configured as described above, the information display layout includes information importance data that defines the importance of information for each driver segment, and layout rules that define the relationship between the importance of information and the display layout. It is determined based on the data. In the present invention, the driver segment is selected according to the driver characteristic determined by the driver characteristic determination means. Therefore, an appropriate information display layout considering the importance of information is determined according to the characteristics of the driver, and the information display means displays information about the vehicle by this information display layout. As a result, according to the vehicle display device of the present invention, vehicle information can be appropriately displayed according to the characteristics of the driver.

In the present invention, it is preferable that the information importance is defined by ranking information according to the score of information related to the vehicle.
In the present invention configured as described above, the importance of information can be effectively considered.

In the present invention, it is preferable that the information display layout determining unit determines an information display layout for each category of information related to the vehicle according to the importance of the information.
In the present invention configured as described above, the layout is determined for each category, for example, an air conditioner, an audio, and the like. Therefore, when displaying information for each category, vehicle information can be displayed more appropriately.

In the present invention, it is preferable that the layout rule defines the display position, area, size, color, and / or screen switching of information according to the importance of the information.
In the present invention configured as described above, it is possible to effectively make the driver visually recognize important information.

In the present invention, it is preferable that the driver characteristic determination unit determines the characteristic of the driver from the driving behavior and / or domestic behavior of the driver.
In the present invention configured as described above, the characteristics of the driver can be determined effectively.

In the present invention, it is preferable that the driver characteristic determination unit causes the driver to present a question regarding the driver characteristic and input an answer, and determines the characteristic of the driver based on the input result.
In the present invention configured as described above, the characteristics of the driver can be determined effectively.

In the present invention, it is preferable that the plurality of driver segments are classified as at least status characteristics, in-vehicle environment suitability and advance preparation characteristics as driver characteristics, and the driver characteristics determination means has at least status characteristics, in-vehicle characteristics as driver characteristics. Determine environmental suitability and readiness.
In the present invention configured as described above, the driver segments are classified according to at least status characteristics, in-vehicle environment compatibility, and advance preparation characteristics as driver characteristics. Here, the difference in the degree of each of the status property, the in-vehicle environment suitability, and the advance readiness is greatly related to the difference in recognition of the importance of information related to the vehicle. Therefore, the vehicle information can be appropriately displayed according to the characteristics of the driver.

In the present invention, it is preferable that the characteristics of the driver that classifies the plurality of driver segments are preliminarily selected by decision tree analysis that greatly affects the importance of the information. A driver characteristic selected in advance by decision tree analysis as a driver characteristic is determined.
In the present invention configured as described above, the driver characteristics are pre-selected by the decision tree analysis so as to greatly influence the importance of the information. Vehicle information can be displayed appropriately.

In the present invention, preferably, there are a plurality of driver characteristics and determination is possible by two-stage evaluation. The plurality of driver segments are classified by combinations of two-stage evaluation. Each characteristic is judged by two-step evaluation.
In the present invention configured as described above, it is possible to easily determine driver characteristics and driver segments.

Also, in the present invention, preferably, there are a plurality of driver characteristics and can be determined by two-step evaluation, and questions regarding the driver characteristics are set one by one with respect to the plurality of driver characteristics and answered by two-step evaluation. Is.
In the present invention configured as described above, the characteristics and driver segments of the driver can be easily determined, and the burden on the driver is small.

  According to the vehicle display device of the present invention, vehicle information can be appropriately displayed in accordance with the characteristics of the driver. As a result, the recognition burden of the display information is reduced, and the usability is improved and the safety is improved. Can be improved.

Embodiments of the present invention will be described below with reference to the accompanying drawings. The display device for a vehicle according to the embodiment of the present invention has a function of displaying contents related to the setting or operating status of an air conditioner or the like in different layouts according to the characteristics of the driver.
First, the display apparatus for vehicles by 1st Embodiment of this invention is demonstrated.
FIG. 1 is a diagram schematically showing the configuration of a vehicle display device according to the first embodiment, and FIG. 2 shows a part of an instrument panel of a vehicle on which the vehicle display device according to the first embodiment is mounted. FIG.

  In FIG. 1, the code | symbol 1 has shown the vehicle-mounted display apparatus. The vehicle display device 1 includes a control CPU 2, a centralized display 4 connected to the CPU 2, a monitor screen 6, a storage device 8, and operation buttons 10. An air conditioner 12 and an audio device 14 are connected to the vehicle display device 1. As shown in FIG. 2, the instrument panel is provided with a centralized display 4, a monitor screen 6, and operation buttons 10. The operation button 10 is for the driver to switch the display content of the centralized display 4.

The centralized display 4 displays information such as the air conditioner device 12 and the audio device 14 below the navigation display. The display content is determined by the CPU 2. As will be described later, the CPU 2 determines the display layout according to the characteristics of the driver, and displays each information on the centralized display 4 based on the layout.
The monitor screen 6 is of a touch panel type that allows various operations and inputs when the driver touches the screen. In this embodiment, in order to determine the characteristics of the driver, a question about the driver is displayed on the monitor screen 6 and an answer is received by the function of the CPU 2.
The storage device 8 displays data for determining driver characteristics (driver characteristic determination data), driver segment data (driver segment data) obtained by classifying drivers based on differences in their characteristics, and information for each driver segment. Data (information importance table), data for optimizing the display layout according to the importance of information (display optimization data), and the like are stored.

Next, the driver characteristic determination data and the segment data will be described with reference to FIG. FIG. 3 is a chart showing the relationship between driver characteristics and driver segments defined in the driver segment data.
As shown in FIG. 3, in the present embodiment, three characteristics are determined as driver characteristics: status, in-vehicle environment compatibility, and advance preparation. Hereinafter, such characteristics are referred to as “driver characteristics”. Each driver characteristic is evaluated in two stages of “H” having a high degree of characteristic and “L” having a low degree. Status refers to the degree to which the driver sees the car as a status symbol.In-car environmental compatibility refers to how the driver feels the bad environment in the car. , Represents the degree of whether the driver performs preliminary or predictive driving for the signal.

In the driver characteristic determination data, one question for determining these driver characteristics is set for each driver characteristic. In the present embodiment, “Q1: the car only needs to travel by moving means” regarding the status, and “Q2: driving when the vehicle is too cold due to excessive cooling, etc.” is a burden. As for the preliminary preparation, the question “Q3: Adjust the speed so as not to catch the previous signal” is set. The question is displayed on the monitor screen 6 (see FIG. 2). In response to these questions, the driver answers either “Yes” or “No” on the touch panel, and “H” or “L” depending on the answer “Yes” or “No”. Is determined.
A question may be displayed on the centralized display 4, and the answer may be made by operating the button 10, voice or a joystick (pointer). The centralized display may have a touch panel function. In addition to the touch panel, the driver may transfer the response content to the vehicle side via the Internet or memory device after answering the question on the home PC. Furthermore, an answer may be sent on a mobile phone or PDA, and the contents of the answer may be transferred via the Internet or connected to a terminal in the car.

As shown in FIG. 3, driver segments classified according to driver characteristics are defined in the driver segment data. In the present embodiment, a driver segment (such as “HHH”) is defined by a combination of two-stage evaluation (“H” or “L”) of each driver characteristic.
Here, even when the combination of the two-stage evaluation of each driver characteristic is different, the importance of the information to be displayed may be almost the same. That is, even when drivers have different degrees of driver characteristics, recognized information importance levels may be almost the same. In the case of this embodiment, when the in-vehicle environment suitability is “L”, the importance of information is hardly changed even if the judgment of prior readiness is different. On the other hand, the importance of information depends on the judgment of status. The degree has changed greatly. Therefore, as shown in FIG. 3, when the in-vehicle environment compatibility is “L”, the same driver segment (“HL” or “L” is used regardless of the difference between “H” or “L” regarding the advance readiness. LL ").

Next, the information importance level table will be described with reference to FIG. 4A to 4F are tables showing the contents of the information importance level table defined for each driver segment.
As shown in FIGS. 4A to 4F, the information importance table defines the importance of information for each driver segment. The importance P is scored for each piece of information such as the air outlet and inside / outside air. In this information importance table, each information is arranged in order of importance P. For example, in the segment “HHH”, the importance of displaying the air outlet is the highest, followed by the display of the inside and outside air and the display of the radio station in order.
In the information importance table, rank R is defined according to the score of importance P. For example, the rank “A” is a case where the importance P is 8.0 points or more, and the rank “B” is less than 8.0 points and 6.5 points or more. Such ranks are classified in consideration of the psychological meaning (“very important”, “a little important”, etc.) of the importance of each information felt by the driver.
As shown in FIG. 4, it can be seen that if the driver segment is different, the value of importance P for each information, the order of the importance of information, and the rank are different. For example, in the segment “HHH”, the “air outlet” has an importance of 9.3 points and rank A, but the segment “LHH” has an importance of 7.5 points and rank B.

Next, display optimization data will be described with reference to FIGS. FIG. 5 is a chart showing display rules regarding the size of icons or characters in the display optimization data. FIG. 6 shows the area allocation of icons or characters, the display positions of categories, etc. in the display optimization data. It is a chart shown.
The display optimization data includes an information display layout rule that defines the layout in which information is displayed according to the importance P or rank R specified in the information importance table (see FIG. 4). . In this embodiment, the “position”, “size”, “area”, “color”, “category display”, “switching screen”, etc. of the icons or characters of each information to be displayed are defined as the layout. Yes.

The “position” of the icon or character is assigned to a position closer to the driver as the importance P is higher. In the case of displaying in the upper and lower two levels, the higher importance P is displayed in the upper level.
The “size” is basically displayed larger as the importance P is higher. Specifically, it is determined based on a rule as shown in FIG. As shown in FIG. 5, in the present embodiment, the size of icons and characters is determined according to the rank. Here, when the size is determined only by the importance level P, a large amount of information is displayed in a large amount of information (for example, HHH) with a high degree of importance P, while a large amount of information with a low degree of importance P ( For example, in LL), a lot of information is displayed in a small size, and as a result, the visibility of information is deteriorated in any driver segment. Therefore, in the present embodiment, as shown in FIG. 5, by setting the size according to the rank R, a balanced display is performed for all of the information to be displayed.

As shown in FIGS. 6A and 6B, the “area” is distributed according to the height of the importance P. Note that the data shown in FIG. 6A is an image of the distribution of the display area and does not define the position. FIG. 6B shows the data contents of the segment LHH as a representative example.
As the “color”, the higher the importance P, the higher the attractiveness and the contrast ratio.
The size, area, and color are defined so as not to fall below the driver's visibility limit.

The display optimization data includes a layout rule (category display rule) related to the category. A category is a type such as an air conditioner, audio, or clock. Specifically, in this embodiment, as shown in FIG. 6A, it is determined that information is displayed collectively for each category. The information display layout rule described above is applied to each category.
According to the category display rule, the position and area distribution of the display areas of these categories are determined according to the level of importance P. That is, the example shown in FIG. 6A is for the segment “LHH”, but since the importance P of the air conditioner related category is higher than the audio importance P, the air conditioner related display area is the audio related display. It is closer to the driver than the area and has a larger area distribution. In the present embodiment, a clock display having a high degree of importance is set as a basic arrangement common to each driver segment, and arranged most on the driver side (driver's seat side).

  As a modification, it is possible to display regardless of the category. For example, in the case of the segment “HHH” (see FIG. 4A), the air conditioner-related and the audio-related, for example, in the order of importance P, for example, air outlet, inside / outside air, radio station, temperature, etc. They may be displayed in order from the position closer to the driver without distinction (not shown).

  Further, the display optimization data includes a layout rule (switching screen rule) regarding the switching screen. In this embodiment, according to the switching screen rule, normally, a screen of information on ranks A to C (front screen) is displayed, and a screen of information on rank D (back screen) is displayed when the driver operates the operation button 10. It has come to be. The front screen is displayed according to the information display layout rule and the category display rule described above. Basically, other information is displayed on the back screen instead of a predetermined part of the information displayed on the front screen. For example, on the front screen (see FIG. 10A), the volume and the outside air temperature are displayed on the back screen (FIG. 11) where the radio frequency and the set temperature of the air conditioner were displayed. The allocation of display information by such screen switching is performed according to the importance P, and therefore differs for each driver segment.

Next, the data construction method of the driver characteristic determination data, driver segment data, and information importance level table will be described.
The driver characteristic determination data, the driver segment data, and the information importance table stored in the storage device 8 are based on data (hereinafter referred to as customer data) acquired through questionnaires or the like actually performed on several hundred drivers. Is generated.
Customer data includes questions about driver characteristics presented to hundreds of drivers and data about their answers. Here, conventionally, 20 driver characteristics (20 variables) relating to driving style, driving burden sensitivity, and the like are known. These characteristics include, for example, the degree of confidence in driving skills, the ability to grasp surrounding traffic conditions, the degree of resistance to physical restraints, etc. in addition to the above three characteristics. The data obtained from the driver for all driver characteristics is included. Further, the customer data includes data obtained by scoring the importance of each vehicle information (for example, each information such as an outlet and a temperature in the case of an air conditioner) for each driver.

Here, when optimizing the display of information according to the driver characteristics, grasp the characteristics of the driver (driver who actually needs to provide the information) that he / she intends to drive on the in-vehicle terminal or home terminal. There is a need to. Here, in such a terminal, for example, if a plurality of questions are presented for each of the above-described 20 characteristics, and answers are made in a plurality of stage evaluations such as, for example, a 5-stage evaluation, determination of driver characteristics It becomes easy to ensure accuracy. However, the number of questions is very large, and the answer is complicated for the driver in the 5-level evaluation. Therefore, it becomes impractical and unacceptable to the user.
Therefore, in this embodiment, the driver characteristics that clearly show the difference in the importance of the air conditioner and audio information are narrowed down, and the questions for determining such driver characteristics are narrowed down.

First, narrowing down of driver characteristics will be described.
In the present embodiment, driver characteristics in which differences in the importance of air conditioner and audio information appear more clearly are determined by decision tree analysis (data mining technique). That is, according to the customer data described above, it can be understood how the driver having the driver characteristics perceives the importance of each information, and this is analyzed by decision tree analysis.
An example of the analysis result by decision tree analysis is shown in FIG. FIG. 7 shows an example of narrowing down the driver characteristics that greatly affect the information importance of air conditioners (shown as an average of about 5.37 points) based on the data of the number of drivers N = 196. In the example shown in FIG. 7, it is understood that the importance is divided into about 5.7 points and about 4.7 points with “H” having high compatibility with the in-vehicle environment and “L” having low. . In decision tree analysis, narrowing down such driver characteristics, taking all 20 driver characteristics as variables and taking into account combinations between variables, gradually capture those that have a strong influence (to narrow down). It is done by the method.

  In the present embodiment, by such a method, the above-described status characteristics, in-vehicle environment compatibility, and advance preparation characteristics are narrowed down as driver characteristics in which the difference in the importance of the air conditioner and audio information appears most. In other words, if these three characteristics are taken into consideration, it is possible to discriminate drivers with different recognitions of the information importance of air conditioners and audio.

Next, the narrowing down of questions for determining driver characteristics will be described.
Conventionally, in order to determine driver characteristics such as the above-described status characteristics, a plurality of questions regarding each driver characteristic have been presented to the driver. In addition, drivers were asked to answer these questions based on a five-level evaluation. For example, there are a wide range of questions regarding the environmental compatibility of the vehicle, such as questions related to cooling and heating, questions related to direct sunlight, questions related to dustiness, and questions related to noise. It was. Then, for each driver characteristic, an average value of the answer scores is obtained, and when the average value is higher than a predetermined threshold (using a known value), “H group”, and when the average value is lower, “L” The degree of characteristics was evaluated as “group”.
On the other hand, in the present embodiment, as described above, the questions are narrowed down to three of Q1 to Q3 and are answered in two stages of “Yes” and “No”. Such a narrowing down of questions and a change in answering method are performed by a method as described below.

First, with respect to all conventional questions, the driver is asked to answer both in a five-step evaluation and in a two-step evaluation of “Yes” and “No”. Here, FIG. 8 shows the results for four questions presented on the in-vehicle environmental compatibility.
In FIG. 8, Q11, Q12, Q13, and Q14 each represent a question. The “y group” is the average value of the scores in the five-step evaluation for the drivers who answered “yes” to each question. The “n group” is “no” for each question. The average value of the scores in the five-step evaluation was obtained for the drivers who answered “No”. The broken lines are the threshold values in the conventional five-level evaluation, which are the threshold points of the “high (H group)” and “low (L group)” boundaries of the in-vehicle environment compatibility.

According to FIG. 8, in response to the question of Q11, the average value (about 3.3 points) of the y group drivers who answered “yes” and the average value (about 2 points) of the n group drivers who answered “no”. .3 points) is the same level of difference (approximately 0.5 points each) from the public average (2.8 points), and the correlation between the 5-level evaluation and the 2-level evaluation is You can see that it is higher than the question.
Therefore, in the case shown in FIG. 8, Q11 is selected as a question for evaluating the degree of in-vehicle environment compatibility (narrowing of questions). Then, by answering Q11 in two stages of “Yes” or “No”, an evaluation equivalent to the conventional five-stage evaluation can be obtained. Note that a coefficient obtained by a statistical test may be obtained for each question, and the question may be selected by comparing the degree of correlation between the five-level evaluation and the two-level evaluation based on this coefficient.
As described above, in the present embodiment, it is possible to narrow down the questions and determine the level of each driver characteristic with high accuracy even with a two-step answer method.

Next, a method for defining driver segments based on narrowed driver characteristics will be described.
As described above, considering the three driver characteristics, it can be determined that the recognition of the information importance of the air conditioner and the audio is different. Questions about each driver characteristic are set one by one and are answered in two stages, “Yes” or “No”.
In this embodiment, the answer “Yes” is “H” and the answer “No” is “L”. As shown in FIG. 3, “H” regarding three driver characteristics (three questions). And “L” in combination define a driver segment.
Here, in the above-described decision tree analysis, as shown in FIG. 7, for example, when the compatibility with the in-vehicle environment is “L”, branching may not be performed in the lower order. In such a case, there is no influence from other driver characteristics. In accordance with the result of such decision tree analysis, in this embodiment, as shown in FIG. 3, when the in-vehicle environment compatibility is “L”, either “H” or “L” regarding the preliminary readiness It is defined as the same driver segment.

Next, a method for generating the information importance table will be described.
The importance table shown in FIG. 4 is generated based on the customer data described above. As described above, the customer data includes, for each driver, data obtained by scoring the importance of each piece of vehicle information (for example, each piece of information such as the outlet and temperature in the case of an air conditioner).
In generating the importance level table, first, the corresponding driver segment is determined for each driver included in the customer data according to the relationship shown in FIG. Then, for all the drivers included in the same driver segment, the average value of the evaluation points is obtained for each information and set as the importance P.
The rank R defines the degree of importance of each information. In this embodiment, when the psychological implications such as “very important”, “pretty important”, “a little important”, and “not very important” are recognized as driver recognition based on customer data, it is classified into different ranks. is doing.

  Next, what kind of information is optimized and displayed will be described. Information related to vehicles includes categories such as meters, such as speedometers and fuel meters, air conditioners, audio, navigation, driving support (ACC, lane keeping, etc.), and watches. Of course, all of these categories may be optimized and displayed according to the driver. On the other hand, it is clear from the above-mentioned customer data that there is information that everyone considers important, information that nobody thinks important, or information that has a large individual difference in recognition of importance. It has become. In this embodiment, the display is optimized mainly for the air conditioner-related and the audio-related as a category having a large individual difference in recognition of importance. On the other hand, information that everyone considers important may be displayed prominently for any driver, for example.

Next, the main operation of the vehicle display device of this embodiment will be described with reference to FIG. FIG. 9 is a flowchart showing the flow of processing by the vehicle display device of the first embodiment.
First, as shown in FIG. 9, in S1, the above-described three questions Q1 to Q3 are displayed on the monitor screen 6 based on the driver characteristic determination data (see FIG. 2), and “Yes” or “No” is displayed on the driver touch panel. Either answer is accepted.
Next, the process proceeds to S2, and based on the driver's answer in S1, each driver characteristic of the status property, the in-vehicle environment compatibility and the preparatory property is determined as “H” or “L”.
Next, the process proceeds to S3, and the driver segment of the driver is selected as described above based on the driver characteristics determined in S2 and the driver segment data (see FIG. 3).
Next, the process proceeds to S4, and the display layout is determined by the information importance level table (any one of the tables shown in FIGS. 4A to 4F) corresponding to the selected driver segment and the display optimization data. The More specifically, the display layout is determined based on the information display rule and the category display rule specified in the display optimization data according to the importance P and rank R of each information specified in the information importance table. The
Next, it progresses to S5 and based on the display layout determined by S4, the information of a timepiece, the air-conditioner apparatus 12, and the audio | voice 14 is displayed on the centralized display 4 (refer FIG. 10).

An example of information display according to the first embodiment is shown in FIGS. 10A to 10F are diagrams showing examples of display layouts for each driver segment, and FIG. 11 corresponds to the display of the front screen shown in FIG. 10A switched by the button operation by the driver. It is a figure which shows the display of the back screen to do.
As shown in FIG. 10A, on the screen of the driver segment HHH, for example, the side of the air outlet with high importance is close to the driver (the vehicle in this embodiment is the right steering wheel, and the air outlet display is on the right side. In the screen of the segment LHH shown in FIG. 10C, the temperature and auto settings that are more important than the air outlet display are displayed on the side closer to the driver. Has been. 10A to 10F, it can be seen that the AUTO display and ECO display of the air conditioner are displayed in different sizes for each driver segment based on the data shown in FIG. Further, when the driver presses the operation button 10, the front screen shown in FIG. 10A is switched to the back screen shown in FIG. 11. In this back screen, information on the outside air temperature and audio volume with low importance is displayed. It can be seen that is displayed.

A modification of the information display is shown in FIG. FIG. 12 is a diagram illustrating an example of a display layout for each driver segment to which the standard display layout and the information display / non-display rule are applied. In this modification, each driver segment is displayed in a common display layout (standard display layout). On the other hand, information with low importance is not displayed for each driver segment.
The standard display layout is a display layout used in common for all driver segments. In the standard display layout, the average value of the importance of each information is obtained for all the driver data of the customer data described above, and the same table as the above-described importance table (see FIG. 4) based on the obtained importance. A (standard importance table) is created separately, and one standard display layout (standard display) is determined and generated from the standard importance table and the display optimization data described above.
The information display / non-display rule is a rule that defines what information is displayed and what information is hidden for each driver segment. In this example, on the basis of the information importance level table for each driver segment shown in FIGS. 4A to 4F, information with a low importance level P or rank R of each information is hidden for each driver segment. For example, the information of importance below rank D is not displayed.
As in this modification, it is possible to display a common display layout regardless of driver characteristics and display only relatively important information according to the driver characteristics.

Next, a vehicle display device according to a second embodiment of the present invention will be described.
In the first embodiment described above, the display layout is determined based on the information importance level table and the display optimization data, whereas in the second embodiment, the display layout is a predetermined display layout. The other points are the same as in the first embodiment. In the following, only the configuration different from that of the first embodiment will be described, and description of the same configuration will be omitted.

The configuration of the vehicular display device of the second embodiment is the same as that of FIG. 1, but in the second embodiment, the storage device 8 stores in advance the information importance level table and the display optimization data of the first embodiment. Information display layout data defining the display layout is stored.
The information display layout data is data in which the display layout itself (for example, each display layout shown in FIGS. 10A to 10F) is predetermined for each driver segment. Specifically, the importance of each information obtained from the customer data described above (corresponding to the contents of the information importance table in the first embodiment) and the rules for the display layout described above (display in the first embodiment) This data defines a display layout optimized for each driver segment based on the optimization data).

  In the second embodiment, as in the first embodiment, driver characteristics are determined and a driver segment is selected. Thereafter, a display layout corresponding to the selected driver segment is selected from the information display layout data. Then, the information on the air conditioner 12 and the audio 14 is displayed on the centralized display 4 based on the selected display layout.

Next, a vehicle display device according to a third embodiment of the present invention will be described with reference to FIGS. FIG. 13 is a diagram schematically showing the configuration of the vehicular display device according to the third embodiment, FIG. 14 is a flowchart showing the processing contents for automatically determining the status, and FIG. FIG. 16 is a diagram illustrating the relationship between the brake pedal depression amount and the pre-readiness, which are the determination criteria for the pre-readiness.
The third embodiment is different from the first embodiment in the method of determining driver characteristics, but the other configurations are the same. Here, only the configuration different from that of the first embodiment will be described, and description of other similar configurations will be omitted.

  The vehicle display device according to the third embodiment is configured to automatically determine the driver characteristics from the driving behavior of the driver. The driving behavior of the driver includes, for example, driving operation of the steering wheel and pedals (driving operation log), vehicle control content (vehicle control log) such as speed, acceleration, and inter-vehicle distance, driving path, destination, air conditioner, audio, etc. The operation details (operation log) of the equipment.

  In the third embodiment, as shown in FIG. 13, the basic configuration is the same as that of the first embodiment, but the CPU 2 stores the data of each in-vehicle device (such as a navigation device) 16, the signal of each sensor 18, Data of each log (driving operation log etc.) stored in the in-vehicle information storage device 20 can be input. In this embodiment, the driving operation log and the vehicle control log are stored in the information storage device 20 or the storage device 8, the driving path and the destination are obtained from the navigation device 16 and the ETC device 16, and the operation log of the equipment is stored in the information storage device. It is stored in the device 20 or the storage device 8.

Next, a method for determining driver characteristics from the driving behavior of the driver in the present embodiment will be described.
First, the status is determined based on the processing contents as shown in FIG. As shown in FIG. 14, in S1, it is determined whether or not the frequency of visits to car shops and dealers exceeds a predetermined threshold value (α1). When exceeding, the process proceeds to S2, and the numerical value 1 is added to the counter NC. If not, the process proceeds to S3 without adding a numerical value to NC. Thereafter, similarly, as the determination criteria, the frequency of entering the maintenance shop (S3), the oil change frequency (S5), and the frequency (S7) at which the aluminum wheel reflectivity exceeds a predetermined value are the threshold values (α2 to α4), respectively. ) Is added to the counter NC (S4, S6, S8), and if not, it is not added. Further, as a criterion, it is determined whether the vehicle grade or class is designated (S9) or the displacement is greater than or equal to a predetermined value (S11). Is added (S10, S12).

  In S13, it is determined whether or not the NC value is equal to or greater than a predetermined threshold value N. If it is determined that the NC value is greater than or equal to the threshold value N, the process proceeds to S14, where it is determined that the status is “H”. If it is determined that the threshold value N is not exceeded, the process proceeds to S15, where it is determined that the status is “L”. Note that “H” and “L” in the third embodiment are synonymous with “H” and “L” shown in FIG. 3 described in the first embodiment.

  Here, the frequency of visits to car shops and dealers can be determined from the destination setting in the navigation device (16), the long-time stop position, and the like. The frequency of entering the maintenance factory and the frequency of oil change can be determined by storing a maintenance log in the log information storage device 20 or the storage device 8 and using it. The reflectivity of the aluminum wheel is determined from the frequency of car wash obtained from a maintenance log or the like by providing a vehicle with a sensor for measuring the reflectivity. The grade and displacement of the vehicle can be determined by storing registration information about the vehicle in the log information storage device 20 or the storage device 8 and using it.

  Next, regarding the environmental compatibility in the vehicle, the criteria for the air conditioner setting (temperature / air volume / air outlet) are adjusted per unit time, the difference between the outside air temperature and the air conditioner set temperature, and the sun visor against the number of changes in sunshine conditions. The ratio of the number of adjustments, the intensity of the odor when the window is opened, and the like. These can be determined using an operation log of the air conditioner, a sensor provided in the sun visor, an odor sensor provided in the vehicle, a sunshine sensor, and the like. Then, in the same manner as in FIG. 14, it is determined whether or not each of these determination criteria exceeds a threshold value, counted by a counter, and the count result is compared with a predetermined threshold value. It is determined whether the environmental compatibility is high “H” or low “L”.

Next, the pre-readiness is determined from the characteristics of the pedal operation when the vehicle is decelerating in the follow-up driving with respect to the pre-preparation operation for the signal. The processing content is shown in FIG.
As shown in FIG. 15, first, in S1, it is determined whether the vehicle is following and is decelerating. Regarding the determination of the following traveling, it is determined that the following traveling is performed when the distance between the own vehicle and the vehicle traveling ahead is 50 m or less based on the measurement value of the inter-vehicle radar or the like. With respect to the determination at the time of deceleration, it is determined that the vehicle is decelerating when the longitudinal acceleration is negative.
When it is determined that the vehicle is following and the vehicle is decelerating, the process proceeds to S2, and it is determined whether a brake operation is being performed. If the brake operation is being performed, the process proceeds to S3, and the depression amount of the brake pedal is stored in association with the vehicle speed.

Next, proceeding to S4, the brake pedal depression amount accumulated in the past by the process of S3 is read. In S5, the standard deviation of the brake pedal depression amount for each vehicle speed range is calculated based on the read brake pedal depression amount. To do. Specifically, the standard deviation BL of the brake pedal depression amount when the vehicle speed is 4 to 20 km / h and the standard deviation BH of the brake pedal depression amount when the vehicle speed is 21 to 40 km / h are calculated. Even if it is determined “No” in S1 or S2, the process proceeds to S4, and the same processing is performed based on the brake pedal depression amount accumulated by the processing of S3 in the past.
Next, the process proceeds to S6, and it is determined whether BL ≦ BH based on BL and BH calculated in S5. Here, as shown in FIG. 16, a tendency is obtained in advance that the pre-preparation tendency is high when BL is larger than BH, and the pre-preparation tendency is low when BL is smaller than BH.
Therefore, in S6, if it is determined that BL ≦ BH, the process proceeds to S7, where it is determined that “L” has a low tendency for preparation, and if it is determined that BL ≦ BH is not satisfied, the process proceeds to S8. Proceed and determine that the tendency of advance preparation is “H”.

In the third embodiment, the determination of each driver characteristic described above incorporates the identification information of the owner (driver) in the car key, and the above-described determination criteria are not applied to other than the car owner.
In the third embodiment, FIG. 3 shows the same as in the first embodiment, based on the determination results of “H” or “L” for the status property, the in-vehicle environment suitability, and the advance readiness described above. The driver segment is determined from the data. As in the first embodiment, the optimum display layout corresponding to the determined driver segment is determined by the information importance level table and the display optimization data described above and displayed on the centralized display 4.
As in the second embodiment, an optimal display layout may be selected based on the information display layout data.

Next, a vehicle display device according to a fourth embodiment of the present invention will be described with reference to FIGS. FIG. 17 is a diagram schematically showing the configuration of the vehicle display device according to the fourth embodiment, FIG. 18 is a flowchart showing the processing contents for automatically determining the status, and FIG. It is a flowchart which shows the processing content for automatically determining property.
The fourth embodiment differs from the first embodiment in the method of determining driver characteristics, but the other configurations are the same. Here, only the configuration different from that of the first embodiment will be described, and description of other similar configurations will be omitted.

  The vehicle display device according to the fourth embodiment is configured to automatically determine the driver characteristics from the driver's home behavior. The home behavior of the driver is, for example, the contents of access to the Internet by a PC, a mobile phone, a PDA or the like in the home, the preference of a TV program, the operation contents of home appliances, and the like.

  In this 4th Embodiment, as shown in FIG. 17, the display apparatus 1 for vehicles is provided with the transmission / reception apparatus 22 for transmitting / receiving various information between the external environments of a vehicle. Other configurations are the same as those of the first embodiment. The transmission / reception device 22 is configured by, for example, a car phone, a mobile phone, or a dedicated radio transceiver. The transmission / reception device 22 can be connected to the Internet 26 via a communication station 24 installed in each region. A driver's home terminal device (personal computer) 28, a driver's mobile phone 30, and a driver's home appliances (TV, program recording device, home air conditioner, refrigerator, microwave oven, etc.) 32 are connected to the Internet 26. Yes.

  With this transmission / reception device 22, for example, an access log to the Internet is received from the personal computer 28, a channel or content of a TV program viewed by the driver is received from the television (32), and the operation content of the home appliance 32 is received from the home appliance 32. It can be received. The CPU 2 determines driver characteristics based on such received information.

Next, a method for determining driver characteristics from the home behavior of the driver in the present embodiment will be described.
First, the status is determined from an access log to the Internet. The processing contents are shown in FIG. As shown in FIG. 18, in S1, it is determined whether the frequency of access to the car information site exceeds a predetermined threshold (α1). In S2, the frequency of access to the car goods information site is predetermined. It is determined whether or not the threshold value (α2) is exceeded. In S3, it is determined whether or not the frequency of access to the accessory shop information site of the vehicle exceeds a predetermined threshold value (α3). It is determined whether the frequency of access to the BBS exceeds a predetermined threshold value (α4).

  In S1 to S4, if it is determined that none of the threshold values (α1 to α4) is exceeded, the process proceeds to S5, where it is determined that the status is “L”. If it is determined in any of S1 to S4 that the threshold value (α1 to α4) has been exceeded, the process proceeds to S6, where it is determined that the status is “H”. Note that “H” and “L” in the fourth embodiment are synonymous with “H” and “L” shown in FIG. 3 described in the first embodiment.

  Next, regarding the environmental compatibility in the vehicle, as criteria, the number of adjustments per unit time of air conditioner settings (temperature / air volume / air outlet) in the home, the difference between the outside air temperature in the home and the air conditioner set temperature, the sunlight conditions Based on the ratio of the number of adjustments of the air conditioner to the number of changes in the vehicle, it is determined whether the vehicle environment compatibility is high “H” or low “L” by a method similar to FIG.

Next, the preliminary readiness is determined from the operation pattern of the home appliance based on the processing content as shown in FIG.
As shown in FIG. 19, first, in S1, it is determined whether or not the television program switching frequency exceeds a predetermined threshold value (α1) as a determination criterion. When exceeding, the process proceeds to S2, and the numerical value 1 is added to the counter NC. If not, the process proceeds to S3 without adding a numerical value to NC. Thereafter, similarly, the CM skip frequency (S3), the microwave oven restart frequency (S5), the PC key input speed (S7), and the PC key input rhythm are constant (see FIG. 5). When S9) exceeds the threshold value (α2 to α5), a numerical value 1 is added to the counter NC (S4, S6, S8, S10). The TV program switching frequency is the frequency of switching to another station during broadcasting of a certain TV program, and the CM skip frequency is the frequency of skipping CMs while playing recording information such as video. The frequency of restarting the range is the frequency at which the microwave oven is warmed and stopped or restarted.

  Next, in S11, it is determined whether or not the NC value is equal to or greater than a predetermined threshold value N. If it is determined that the NC value is greater than or equal to the threshold value N, the process proceeds to S12, where it is determined that the impatient driving tendency is high, and if it is determined that the NC value is not equal to or greater than the threshold value N, the process proceeds to S13. It is determined that the impatient driving tendency is high. In this fourth embodiment, when the impatient driving tendency is high, it is assumed that the preliminary preparation is high “H”, and when the impatient driving tendency is low, the preliminary preparation is low “L”. Yes.

In the fourth embodiment, an individual driver is identified when operating a PC, and a fingerprint authentication mechanism is incorporated into an operation button for home appliances to recognize the individual driver. . In the vehicle, the identification information of the owner (driver) is incorporated in the key of the car, and the above-described determination criteria are not applied to other than the owner of the car.
Also in the fourth embodiment, based on the determination results of “H” or “L” for the above-described status property, in-vehicle environment suitability, and advance preparation, FIG. The driver segment is determined from the indicated data. As in the first embodiment, the optimum display layout corresponding to the determined driver segment is determined by the information importance level table and the display optimization data described above and displayed on the centralized display 4.

As in the second embodiment, an optimal display layout may be selected based on the information display layout data.
The driver characteristic may be determined by combining both the automatic determination of the driver characteristic based on the driving action according to the third embodiment and the automatic determination of the driver characteristic based on the home action according to the fourth embodiment.

  In each of the above-described embodiments, the driver segment is determined by driver input or by driving behavior or home behavior. As a modified example, the determination result information of the driver segment already obtained and the owner identification information in the key as described above are stored in the storage device 8 as a pair, and the driver segment is determined from only the identification information in the key. Or a display layout or a layout rule may be called.

1 is a diagram schematically showing a configuration of a vehicle display device according to a first embodiment of the present invention. It is a figure which shows a part of instrument panel of the vehicle by which the display apparatus for vehicles by 1st Embodiment of this invention was mounted. It is a graph which shows the relationship between the driver characteristic prescribed | regulated to driver segment data, and a driver segment. It is a graph which shows the content of the information importance table prescribed | regulated for every driver segment. It is a graph which shows the display rule regarding the size of an icon or a character among display optimization data. It is a chart which shows the area distribution of an icon or a character, the display position of a category, etc. among display optimization data. It is an example of the analysis result of the driver characteristic by decision tree analysis. It is a figure which shows the data of the answer with respect to the question shown to the driver about the environmental compatibility in a vehicle. It is a flowchart which shows the flow of the process by the display apparatus for vehicles of 1st Embodiment of this invention. It is a figure which shows the example of the display layout for every driver segment. It is a figure which shows the display of the back screen corresponding to the display of the front screen shown to Fig.10 (a). It is a figure which shows the example of the display layout for every driver segment to which the standard display layout and the display / non-display rule of information were applied. It is a figure which shows schematically the structure of the display apparatus for vehicles by 3rd Embodiment of this invention. It is a flowchart which shows the processing content for automatic determination of status property. It is a flowchart which shows the processing content for automatic determination of prior readiness. It is a figure which shows the relationship between the depression amount of the brake pedal used as the judgment criterion of advance readiness, and advance readiness. It is a figure which shows schematically the structure of the display apparatus for vehicles by 4th Embodiment of this invention. It is a flowchart which shows the processing content for automatic determination of status property. It is a flowchart which shows the processing content for automatic determination of prior readiness.

Claims (11)

A vehicle display device that displays information about a vehicle,
Storage means for storing data of a plurality of driver segments classified according to differences in driver characteristics, and data of a plurality of information display layouts defined in consideration of the importance of information for each driver segment;
Driver characteristic determination means for determining the characteristics of the driver;
A driver segment selection means for selecting a driver segment according to the determined characteristics of the driver based on the data of the driver segment;
An information display layout selecting means for selecting an information display layout corresponding to the selected driver segment based on the data of the information display layout;
Information display means for displaying information about the vehicle by the selected information display layout;
A vehicle display device characterized by comprising: A vehicle display device that displays a plurality of information about a vehicle,
Data on multiple driver segments classified according to differences in driver characteristics, information importance data defining the importance of information for each driver segment, and the relationship between information importance and display layout Storage means for storing layout rule data;
Driver characteristic determination means for determining the characteristics of the driver;
A driver segment selection means for selecting a driver segment according to the determined characteristics of the driver based on the data of the driver segment;
Information display layout determining means for determining an optimal information display layout corresponding to the selected driver segment based on the information importance data and the layout rule data;
Information display means for displaying information relating to the vehicle in accordance with the determined information display layout;
A vehicle display device characterized by comprising:   The vehicle display device according to claim 2, wherein the information importance is defined by information related to the vehicle being scored and ranked according to the score.   4. The vehicle display device according to claim 2, wherein the information display layout determining unit determines an information display layout according to the importance of information for each category of information related to the vehicle.   The layout rule defines the display position, area, size, color, and / or screen switching of information according to the importance of information. Vehicle display device.   The vehicle display device according to any one of claims 1 to 5, wherein the driver characteristic determining means determines the characteristic of the driver from the driving behavior and / or domestic behavior of the driver.   The vehicle according to any one of claims 1 to 5, wherein the driver characteristic determination means causes the driver to present a question regarding the characteristic of the driver and to input an answer, and to determine the characteristic of the driver based on the input result. Display device. The plurality of driver segments are classified according to at least status characteristics, in-vehicle environment suitability and advance preparation characteristics as driver characteristics,
The vehicle display device according to any one of claims 1 to 7, wherein the driver characteristic determination means determines at least status characteristics, in-vehicle environment compatibility, and advance preparation characteristics as driver characteristics. The characteristics of the driver that classifies the plurality of driver segments are pre-selected by decision tree analysis to greatly influence the importance of information.
The vehicle display device according to any one of claims 1 to 8, wherein the driver characteristic determination means determines a driver characteristic selected in advance by the decision tree analysis as a characteristic of the driver. There are multiple characteristics of the driver and can be determined by two-step evaluation.
The plurality of driver segments are classified according to the combination of the two-stage evaluation,
The vehicle display device according to claim 1, wherein the driver characteristic determination unit determines the characteristics of the plurality of drivers by two-stage evaluation. There are multiple characteristics of the driver and can be determined by two-step evaluation.
8. The vehicle display device according to claim 7, wherein the questions regarding the characteristics of the driver are set one by one with respect to the characteristics of the plurality of drivers and are answered in a two-step evaluation.

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