JP2003205797A - Device for notifying information for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To accurately call a vehicle occupant's attention to situation confirmation just before an intersection or the like. <P>SOLUTION: When the vehicle reaches a prescribed distance from this side of the intersection while traveling, a degree of driving condition confirmation is determined by a driving-condition confirmation degree determining part 5 based on a posture of the occupant detected by an occupant posture detecting part 2. An information-notifying necessity is determined by an information- notifying necessity determining part 6, using a feature of the intersection detected by an intersection detecting part 4, a feature of a traveling condition detected by a traveling condition detecting part 3, and the degree of driving condition confirmation determined by the driving-condition confirmation degree determining part 5. The information-notifying necessity determining part 6 notifies information by an information notifying part 8 when the information- notifying necessity is high, and notifies no information when the information- notifying necessity is low. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle information notifying apparatus for judging the necessity of information notification based on the posture of an occupant in a vehicle, the intersection at which the vehicle enters, and the like to inform the occupant of various information. Regarding

[0002]

2. Description of the Related Art Conventionally, as a driving information informing device for informing a vehicle driver of various information, for example, Japanese Patent Laid-Open No. 9-30
As disclosed in Japanese Patent No. 9372, there is known one that detects a posture of a driver and gives an optimum warning according to the detected posture of the driver.

[0003]

However, in the conventional driving information notifying device, since the information is set on the assumption that the driving condition is confirmed, if the driver's posture does not change. Information cannot be reported.

Further, in the conventional driving information notifying device, it is impossible to make the driver recognize the necessity of checking the driving situation and urge the driver to confirm the driving situation.

Therefore, the present invention has been proposed in view of the above-mentioned circumstances, and provides a vehicle information notifying apparatus capable of prompting a vehicle occupant to accurately confirm the situation.

[0006]

In a vehicle information notifying apparatus according to a first aspect of the present invention, an occupant attitude detecting means for detecting an attitude of an occupant who is in the vehicle, and a vehicle entering by detecting a position of the vehicle. An intersection detecting means for detecting an intersection, an information notifying means for notifying the occupant of information, and an occupant posture detected by the occupant posture detecting means at the intersection detected by the intersection detecting means, from the occupant's driving condition confirmation Determining the degree of operation status confirmation degree determining means, and the necessity of confirmation degree determining means for determining the degree of necessity of the situation confirmation based on the determination by the operation state confirmation degree determining means, and the determination by the situation confirmation necessity degree determining means And information notification control means for controlling the information notification means so as to perform information notification based on the above.

In the vehicle information notifying apparatus according to claim 2,
The vehicle information notifying apparatus according to claim 1, wherein the confirmation necessity degree determining means determines the necessity degree of the situation confirmation when the driving situation confirmation degree determining means determines that the degree of the driving situation confirmation is insufficient. The feature is that it is determined to be high.

In the vehicle information notifying apparatus according to claim 3,
The vehicle information notifying apparatus according to claim 1, wherein the intersection detecting means detects an intersection and a type and presence of a signal at the intersection, a means for detecting an intersection shape,
It is characterized by comprising at least one of means for detecting buildings near the intersection.

In the vehicle information notifying apparatus according to claim 4,
The vehicle information notifying apparatus according to claim 1, wherein the confirmation necessity determining means indexes the intersection detected by the intersection detecting means as an intersection characteristic index, and it is necessary to confirm the situation according to the intersection characteristic index. It is characterized by finding the degree.

According to the vehicle information notifying apparatus of the fifth aspect,
The vehicle information notifying apparatus according to claim 1, further comprising a traveling situation detecting means for detecting a traveling situation of the vehicle, wherein the confirmation necessity determining means comprises the traveling situation of the vehicle detected by the traveling situation detecting means. It records the presence or absence of the occurrence of an emergency running state of the vehicle, and determines the necessity degree of the situation confirmation according to the recorded frequency of the occurrence of the emergency running state.

In the vehicle information notifying apparatus according to claim 6,
The vehicle information notifying apparatus according to claim 1, further comprising a traveling situation detecting means for detecting a traveling situation of the vehicle, wherein the confirmation necessity determining means comprises the traveling situation of the vehicle detected by the traveling situation detecting means. As a driving characteristic index,
The feature is that the necessity degree of the situation confirmation is obtained according to the traveling characteristic index.

In the vehicle information notifying apparatus according to claim 7,
The vehicle information notifying apparatus according to claim 1, wherein the confirmation necessity determining means determines the necessity degree of the situation confirmation according to environmental information around the vehicle when the intersection is detected by the intersection detecting means. Characterize.

In the vehicle information notifying apparatus according to the eighth aspect,
The vehicle information notifying apparatus according to claim 5, wherein the confirmation necessity degree determining unit confirms the situation according to the environmental information when the presence or absence of the emergency traveling state detected by the traveling situation detecting unit is detected. The feature is that the necessity degree is obtained.

In the vehicle information notifying apparatus according to claim 9,
The vehicle information notifying apparatus according to claim 1, wherein the information notifying unit has a plurality of types of information notifying functions, and the information notifying control unit differs depending on the determination made by the situation confirmation necessity determining unit. It is characterized in that the above information notifying means is controlled so that information is notified by an information notifying function.

According to a tenth aspect of the present invention, there is provided the vehicle information notifying apparatus according to the first aspect, wherein the information notifying control means includes the intersection detected by the intersection detecting means and the traveling state of the vehicle. , The information confirmation content is selected according to any of the occupant's condition confirmation frequency and environmental information around the vehicle,
It is characterized in that the information notifying unit is controlled so as to notify the selected information notification content.

[0016]

According to the vehicle information notifying apparatus of the first aspect of the present invention, the degree of confirmation of the occupant's driving condition is determined from the occupant's posture at the intersection, and the information is notified based on the degree of driving condition confirmation. Information can be notified when there is a possibility that the driver will fail to check at intersections etc. that require information notification, the confirmation can be accurately promoted, and the driver can be made aware of the necessity of confirmation. it can.

According to the vehicle information notifying apparatus of the second aspect, when it is determined that the degree of confirmation of the driving situation is insufficient, it is determined that the necessity of the situation confirmation is high. Therefore, only when the information notification is necessary. Information notification can be carried out.

According to the vehicle information notifying apparatus of the third aspect, the type and presence of the signal at the intersection, the shape of the intersection, the features of the intersection from the building near the intersection are detected, and the information notification necessity is changed to obtain the information. Information notification can be performed, the situation confirmation necessity can be determined in more detail, the number of unnecessary information notifications can be reduced, and the information notification effect can be improved.

According to the vehicle information notifying apparatus of the fourth aspect, since the characteristics of the intersection are digitized as index values, the calculation for obtaining the information notification necessity can be facilitated.

According to the vehicle information notifying apparatus of the fifth aspect, the presence / absence of occurrence of the emergency running state of the vehicle is recorded from the running state of the vehicle, and it is necessary to check the situation according to the frequency of the recorded emergency running state. Therefore, it is possible to reflect an emergency situation that occurred in the past in the calculation of the situation confirmation necessity degree, to determine the situation confirmation necessity degree in more detail, and to reduce the number of unnecessary information notifications.

According to the vehicle information notifying apparatus of the sixth aspect, the traveling condition of the vehicle is indexed as the traveling characteristic index, and the necessity degree of the situation confirmation is obtained according to the traveling characteristic index. The calculation when obtaining can be facilitated.

According to the vehicle information notifying apparatus of the seventh aspect, the degree of necessity of situation confirmation is obtained according to the environmental information around the vehicle when the intersection is detected, so that the accuracy of the situation confirmation necessity is further improved. It is possible to reduce the number of unnecessary information notifications and improve the information notification effect.

According to the vehicle information notifying apparatus of the eighth aspect, the necessity level of the situation confirmation is obtained according to the environmental information when the presence / absence of the occurrence of the emergency traveling state is detected. Can be improved.

According to the vehicle information notifying apparatus of the ninth aspect, since the information is notified by the different information notifying function according to the judgment by the situation confirmation necessity judging means, the driver can recognize the necessity of the information notifying. Therefore, when the information notification need is high, the content of the information notification can be recognized more easily.

According to the vehicle information notifying apparatus of the tenth aspect, the intersection, the traveling condition of the vehicle, the frequency of checking the occupant's condition,
Since the information notification content is selected according to any of the environmental information around the vehicle and the selected information notification content is notified, detailed information notification can be performed and the information notification effect can be improved.

[0026]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

[First Embodiment] The present invention is applied to a vehicle information notifying apparatus according to a first embodiment configured as shown in FIG. 1, for example.

[Structure of Vehicle Information Notification Device According to First Embodiment] The vehicle information notification device according to the first embodiment has a GPS (global positioning system) processing unit 1 and an occupant posture detection unit 2 in a vehicle. , A traveling condition detection unit 3, an intersection detection unit 4, a driving condition confirmation degree determination unit 5, an information notification necessity determination unit 6, an information recording unit 7, and an information notification unit 8.

The GPS processing unit 1 is connected to a GPS antenna (not shown), generates current position information of the vehicle using the signal received by this GPS antenna, and outputs it to the intersection detection unit 4. Further, the GPS processing unit 1 detects the current date and time and outputs it to the intersection detection unit 4 as current date and time information.

The intersection detector 4 detects an intersection from the current position information from the GPS processor 1. At this time, the intersection detection unit 4 compares the current position of the vehicle with the map data,
The position corresponding to the map of the vehicle is recognized to detect the intersection where the vehicle travels. The map data may be data stored in the vehicle or may be acquired from the outside.

The intersection detector 4 acquires various kinds of information about the intersection detected from the map data and outputs it to the driving condition confirmation degree determiner 5. The intersection detection unit 4 acquires intersection data including, for example, signal type data indicating the presence or absence of a signal at the intersection and the signal type, intersection shape data indicating the shape of the intersection, and near-intersection building data indicating buildings existing near the intersection. To do.

Upon obtaining the intersection data, the intersection detection unit 4 refers to a preset situation confirmation index table and outputs it to the driving situation confirmation degree determination unit 5 as an index. The intersection detection unit 4 may index only one of the signal type data, the intersection shape data, and the building data near the intersection.

The intersection detector 4 refers to the situation confirmation index table shown in FIG. 2 when indexing the intersection data. This status confirmation index table is provided with the signal type, the right-side intersection shape, the left-side intersection shape, the presence / absence of the right-side building, and the presence / absence of the left-side building as indicators regarding the intersection,
The signal type index value a1, the right side intersection shape index value a2, the left side intersection shape index value a3, the right side building index value a4, and the left side building index value a5 are set for each index state. In this example, a higher index value is set as the driver needs to check the situation more.

The right side intersection shape L for determining the right side intersection shape index value a2 in this situation confirmation index table
1. The left side intersection shape L2 that determines the left side intersection shape index value a3 is, as shown in FIG. 3, the distance from the lane end of the intersection road 100B to the driver position 101 with respect to the road 100A on which the vehicle is traveling. (F), driver position 101
To the right-hand crossing lane (W1), driver position 10
From the distance from 1 to the left-hand crossing lane (W2) and the distance from the end of the crossing lane to the own lane (W3), the intersection detecting unit 4 determines by using the following equations 1 and 2.

L1 = W1 × (W3 + F) / F (Formula 1) L2 = W2 × (W3 + F) / F (Formula 2) Further, the right side building index value a4 in the situation confirmation index table is determined. Right side building A, left side building index value a
As shown in FIG. 3, the left side building B that determines 5 is a building 103 located near the intersection 102, located on the right side of the driver position 101, and a building 104 located on the left side.

The intersection detection unit 4 recognizes the state of the signal installed at the intersection into which the vehicle enters from the signal type data, and compares the recognized state of the signal with the situation confirmation index table to turn on the signal. When the signal is in the state, the signal type index value a1 is the numerical value "0", when the signal is in the blinking state, the signal type index value a1 is the numerical value "2", and when there is no signal, the signal type index value a1 is the numerical value "3". Index with. In addition, the intersection detection unit 4 also indexes the intersection shape data and the building data near the intersection by similarly determining the index value.

The intersection detecting section 4 functions as an intersection detecting means of the vehicular information notifying apparatus by performing such processing.

The occupant posture detecting section 2 is connected to a seat belt pull-out mechanism (not shown) for pulling out and rewinding the seat belt worn by the occupant, and detects the seat belt pull-out amount which changes depending on the occupant posture.

The running condition detector 3 is connected to a vehicle speed sensor, an acceleration sensor, and an ABS (Anti-lock Brake System), and is used as a running condition of the vehicle such as vehicle speed information, acceleration information, and AB.
ABS operation information indicating the presence or absence of S operation is detected. The traveling condition detection unit 3 outputs the detected various information to the driving condition confirmation degree determination unit 5. The running condition detection unit 3 functions as a running condition detecting unit of the vehicle information notification device by performing such processing.

The operation status confirmation degree determination unit 5 uses the seat belt withdrawal amount detected by the occupant posture detection unit 2
Based on the driving status of the driver, the degree of checking the driving status, which indicates the degree to which the driver is checking the status, is determined, and the result of this determination is used as an index. As a result, the driving condition confirmation degree determination unit 5 creates a confirmation degree determination result. At this time, the driving condition confirmation degree determination unit 5 uses the seat belt withdrawal amount in the normal riding posture of the driver as a reference value, and compares the reference value with the current seat belt withdrawal amount detected by the occupant posture detection unit 2. Then, the current occupant posture is recognized.

The operating condition confirmation degree determination unit 5 indexes the seat belt withdrawal amount with reference to the condition confirmation index table shown in FIG.
Get 1. In this example, the belt withdrawal amount index value c1 is set to the numerical value “1” when the belt withdrawal amount is increased by 20% from the reference value, and the belt is withdrawn when the belt withdrawal amount is increased by 10% from the reference value. Withdrawal amount index value c
1 is a numerical value “2”, and the belt withdrawal amount index value c1 is a numerical value “3” when the belt withdrawal amount has not increased with respect to the reference value.

The driving condition confirmation degree determining unit 5 uses the average value of the seat belt withdrawal amount when the vehicle is traveling on a straight road at a substantially constant speed as a reference value. When the driving condition confirmation degree determination unit 5 recognizes that the vehicle is traveling on a straight line at a substantially constant speed from the traveling condition detected by the traveling condition detection unit 3, the seat belt withdrawal amount at that time is recorded and the intersection is crossed. The average value of the seat belt withdrawal amounts recorded is calculated and updated each time the vehicle passes. This allows
Create a reference value to be used when determining the driver's posture.

The occupant posture detection unit 2 and the driving condition confirmation degree determination unit 5 function as occupant posture detection means of the vehicle information notifying apparatus by performing such processing, and the driving state confirmation degree determination unit 5 further operates. It functions as a driving condition confirmation degree determination means of the vehicle information notification device.

The information notification necessity degree judging unit 6 judges the information notification necessity degree based on the detection results from the traveling situation detecting unit 3 and the intersection detecting unit 4 and the confirmation degree judging result from the driving situation confirmation degree judging unit 5. The information notification necessity degree determination processing unit 11 and the coding / emergency state detection unit 12 are included.

The coding / emergency state detection unit 12 indexes (codes) the traveling situation created by the traveling situation detection unit 3 with reference to the situation confirmation index table shown in FIG. Get b1. In this example, when the vehicle speed V is lower than 10 km / h, the traveling condition index value b1 is set to the numerical value "1", and when the vehicle speed V is 10 km / h or more, the traveling condition index value b1 is set to the numerical value "3".

Also, the coding / emergency state detecting unit 12
Compares the traveling condition created by the traveling condition detector 3 with preset emergency condition determination conditions to determine whether or not an emergency condition has occurred in the vehicle. The emergency state determination condition may be, for example, a case where the maximum value of the longitudinal acceleration from the 30 m position before the intersection to the intersection passage completion position exceeds 0.5 G, or a case where the ABS is activated.

The information recording section 7 is a storage processing section 21 for accumulating and storing the information detected by the intersection detection section 4, the occupant posture detection section 2 and the traveling situation detection section 3, and this storage processing section 21.
And a recording update unit 22 for controlling the recorded contents of the. Further, in the information recording unit 7, the occupant posture detection unit 2 uses the emergency state occurrence index value created by the coding / emergency state detection unit 12 as the emergency state occurrence record information and the recent state occurrence frequency.
Memorize by 1.

The information notification necessity degree determination processing unit 11 uses the index values a1 to a5 regarding the intersection created by the intersection detection unit 4.
The information notification necessity degree is determined based on the confirmation situation determination result created by the operation situation confirmation degree determining unit 5 and the index value regarding the traveling state created by the coding / emergency state detecting unit 12.
The information notification necessity determination processing unit 11 controls the information notification unit 8 to notify the driver of various information based on the determined result.

The information notification necessity degree determination unit 6 functions as a confirmation necessity degree determination means and an information notification control means by performing such processing.

The information notifying section 8 is composed of, for example, a sound emitting mechanism such as a speaker and a display mechanism for displaying various kinds of information, and informs the driver of various kinds of information under the control of the information notifying necessity determining section 6. In the information notification unit 8, the volume of sound emitted from the sound emission mechanism and the sound emission content are variable by the information notification necessity determination unit 6, and the display content displayed by the display mechanism is variable by the information notification necessity determination unit 6. Is made. As a result, the information notification unit 8 is controlled by the information notification necessity determination unit 6 to notify information in different forms. The information notifying unit 8 functions as an information notifying unit of the vehicle information notifying apparatus by performing such an operation.

[Operation of the vehicle information notifying apparatus according to the first embodiment] Next, the operation of notifying the driver of information by the vehicle information notifying apparatus described above will be described with reference to FIG.

First, in the vehicle information notification device, step S
In step 1, it is determined whether an ignition switch (not shown) is in the on state, and when it is in the on state, the process proceeds to step S2.

In step S2, the GPS processing unit 1,
The occupant posture detection unit 2, the traveling condition detection unit 3, and the intersection detection unit 4 operate to detect the driving condition, and the process proceeds to step S3. At this time, the intersection detection unit 4 obtains index values (a1 to a5) related to the intersection by referring to the situation confirmation index table shown in FIG. 2, and further, the intersection data detected by the intersection detection unit 4 and the traveling situation detection unit 3
Driving status detected by the code / emergency status detection unit 1
The emergency state detected by 2 is temporarily stored in the storage processing unit 21.

In step S3, the intersection detector 4 detects the intersection in step S2, and determines whether or not the vehicle has reached a predetermined distance (0 to 30 m) before the intersection. When it is determined that the predetermined distance is reached before the intersection, the process proceeds to step S4 and thereafter, and the processes of steps S4 to S7 are performed from the predetermined distance before the intersection until the passage of the intersection is completed. On the other hand, if it is determined that the predetermined distance has not been reached before the intersection, the process proceeds to step S8 and thereafter.

In step S4, the driving condition confirmation degree determining unit 5 refers to the condition confirmation index table shown in FIG. 2 to obtain the belt withdrawal amount index value c1 relating to the occupant posture from the seat belt withdrawal amount detected in step S2. Then, the degree of operation status confirmation is determined, and the process proceeds to step S5.

In step S5, the information notification necessity determination processing unit 11 stores the index values a1 to a5 regarding the intersections recorded in step S2, the traveling condition, the emergency state occurrence index value g, and the number of emergency state occurrence times h. It reads from 7, and advances a process to step S6. The initial value of the emergency state occurrence index value g is "1", and the initial value of the emergency state occurrence number h is "0".

In step S6, the information notification necessity degree determination unit 11 determines the information notification necessity degree. At this time, the information notification necessity degree determination processing unit 11 performs processing as shown in FIG.

According to FIG. 5, first, in step S21, the information necessary for the determination of the information notification necessity degree is read out as in step S5, and the process proceeds to step S22.

In step S22, the information notification necessity determination processing unit 11 obtains the traveling condition index value b1 from the traveling condition read in step S21 by referring to the condition confirmation index table, and the process proceeds to step S23. .

In step S23, the information notification necessity degree determination processing unit 11 calculates the information notification necessity degree N by performing the calculation according to the following equation 3, and then in step S2.
Processing proceeds to 4.

N = a1 × (a2 + a3 + a4 + a5 + b1 + c1) × g (Equation 3) In step S24, the information notification necessity determination processing unit 1
According to 1, the information notification necessity degree N calculated by the equation 3 in step S23 is compared with the preset threshold value N1, and when the information notification necessity degree N is larger than the threshold value N1, the process is performed in step S26. If it is determined that the information notification necessity degree N is not larger than the threshold value N1, the process proceeds to step S25.

In step S26, the information notification necessity degree determination unit 11 determines that the information notification necessity degree N is the threshold value N.
Since it is greater than 1, the information notification necessity degree is determined to be “large”, and the process ends. Here, the threshold value N1 is set to a value for determining the information notification necessity degree as “large” based on the information notification necessity degree N calculated by Expression 3, and the situation confirmation index table shown in FIG. 2 is used. In the case, for example, "30"
Is set to.

In step S25, the information notification necessity degree determination unit 11 determines that the information notification necessity degree N is the threshold value N.
It is determined whether it is 1 or less and larger than the threshold value N2. When it is determined that the information notification necessity degree N is less than or equal to the threshold value N1 and greater than the threshold value N2, step S
If the information notification necessity degree N is equal to or less than the threshold value N1 but not greater than the threshold value N2, the process proceeds to step S28.

In step S27, it is determined that the information notification necessity is "medium", and in step S28 it is determined that the information notification necessity is "small". Here, the threshold value N2 is set to a value that determines the information notification necessity degree as “medium” or “small” based on the information notification necessity degree N calculated by the equation 3, and the situation confirmation index shown in FIG. When the table is used, it is set to "20", for example.

By performing the process shown in FIG. 5, the information notification necessity determination processing unit 11 needs to notify the information when the information notification necessity is "high" and "medium". When the information notification necessity degree is “small”, it is determined that the information notification is unnecessary and the process returns to step S2.

In step S7, the information notification necessity determination processing section 11 controls the information notification section 8 so as to notify different information according to the information notification necessity degree determined in step S6, thereby performing information notification. Then, the process is returned to step S2. The information notification necessity degree determination processing unit 11
For example, when the information notification necessity degree N is determined to be "high", the information notification is performed at the maximum volume, and when the information notification necessity degree N is determined to be "medium", the volume is decreased to notify the information. The notification unit 8 is controlled.

The vehicle information notifying apparatus repeatedly executes such steps S4 to S7 during the period when it is determined that the distance is a predetermined distance from before the intersection.

Further, when it is determined in step S3 that the predetermined distance from the front of the intersection has not been reached, in step S8, the intersection detection unit 4 determines whether or not the vehicle is located in the intersection, and the vehicle is in the intersection. When it is determined that the vehicle is not located at the intersection, the process proceeds to step S9, and when it is determined that the vehicle is located at the intersection, the process proceeds to step S10.

In step S9, the running condition is stored in the information recording unit 7 in order to continue the information notification by performing the processing in steps S2 to S7, and then in step S9.
Return the process to 2.

On the other hand, in step S10, the coding / emergency state detection unit 12 determines whether or not an emergency state has occurred and updates the emergency state occurrence record. At this time, the coding / emergency state detecting unit 12 performs a process as shown in FIG.

According to FIG. 6, first, in step S31, the coding / emergency state detection unit 12 compares the traveling state detected in step S2 with a preset emergency state determination condition, and the vehicle To determine whether an emergency has occurred. When it is determined that the emergency state has occurred in the vehicle, the process proceeds to step S32, and when it is determined that the vehicle has no emergency state, the process proceeds to step S33.

In step S32, the coding / emergency state detection unit 12 performs the operation shown in the following equation 4 to obtain a new emergency state occurrence index value g'and the operation shown in the following equation 5. As a result, a new number of times of emergency occurrence h'is obtained, and the process proceeds to step S34.

G ′ = {(h / (g−1)) + 1} / (h + 1) +1 (Equation 4) h ′ = h + 1 (Equation 5) “g” in these Equations 4 and 5 and “H” is the emergency state occurrence index value g and the number of times of emergency state occurrence h already recorded in the information recording unit 7.

In step S33, the coding / emergency state detection unit 12 calculates the new emergency state occurrence index value g'by performing the calculation shown in the following formula 6 and the calculation shown in the above formula 5. Then, a new number of times of emergence of an emergency state h'is obtained, and the process proceeds to step S34.

G '= {(h / (g-1))} / (h + 1) +1 (Equation 6) In step S34, the coding / emergency state detecting unit 1
In step 2, the new emergency state occurrence index value g ′ obtained in step S32 or step S33 is set as the emergency state occurrence index value g for use in the next step S23, and is stored in the storage processing unit 21. Number of times an emergency occurs h '
Is set as the number of times of occurrence of an emergency state h to be used in the next step S32 or step S33, stored in the storage processing unit 21, and the process is returned to step S1.

"Effects of the vehicle information notification device according to the first embodiment" As described above in detail, according to the vehicle information notification device according to the first embodiment, the occupant posture of the driver at the intersection Since the driver's driving condition confirmation degree is judged from this and information is notified based on the driving condition confirmation degree, it is possible to notify the information when there is a possibility that the driver will fail to check the intersection etc. where information notification is required. It is possible to promptly carry out confirmation accurately. Further, according to this vehicle information notifying apparatus, the driver can be made aware of the necessity of confirmation.

According to this vehicle information notifying apparatus,
Compare the normal seat belt withdrawal amount with the current driver's seat belt withdrawal amount, and if the seat belt withdrawal amount at the intersection etc. does not increase, determine that the degree of operation status check is insufficient and check the status. Since it is determined that the necessity of is high, it is possible to perform the information notification only when the information notification is necessary.

Further, according to this vehicle information notifying device,
Information can be notified by changing the information notification necessity by detecting the type and presence of signals at the intersection, the shape of the intersection, the features of the intersection from the buildings near the intersection, and determining the information notification need in more detail. Thus, the number of useless information notifications can be reduced, and the information notification effect can be improved. Further, according to this vehicle information notifying apparatus, the characteristics of the intersection are digitized as an index value using the situation confirmation index table of FIG. 2, so that the calculation for obtaining the information notification necessity can be facilitated. .

Furthermore, according to this vehicular information notifying apparatus, the presence / absence of an emergency running state of the vehicle is detected from the running state of the vehicle and stored, and the information notifying necessity degree is obtained using the equation (3). Information can be notified, an emergency situation that occurred in the past can be reflected in the calculation of the information notification necessity, the information notification necessity can be determined in more detail, and the number of unnecessary information notifications can be reduced. .

Furthermore, according to this vehicular information notifying device, the characteristics of the running condition of the vehicle are digitized as index values by the condition confirmation index table shown in FIG. Can be easy.

Furthermore, according to this vehicle information notifying apparatus, different information is notified according to the information notification need, so that the driver can recognize the necessity of confirmation, and the information notification need is high. Sometimes, the content of the information notification can be recognized more easily.

[Second Embodiment] Next, a vehicle information notifying apparatus according to a second embodiment will be described. In addition,
The same contents as those of the vehicle information notification device according to the first embodiment described above are denoted by the same reference numerals, and detailed description thereof is omitted.

[Structure of Vehicle Information Notification Device According to Second Embodiment] As shown in FIG. 7, the vehicle information notification device according to the second embodiment uses a GPS instead of the GPS processing unit 1 for navigation. It differs from the vehicle information notification device according to the first embodiment in that the system 31 is provided.

The navigation system 31 includes not only the current time and the current position information, but also the road type information (e1) and the residential land information (e) at the current vehicle position as shown in FIG.
2), traffic jam information (e3) and road surface condition information (e4) are acquired as environmental information.

In such a vehicular information notifying apparatus, when the intersection detecting section 4 detects an intersection, the navigation system 31 obtains environmental information around the vehicle, and the information notification necessity determination processing section 11 causes the environmental information. Is used to obtain the information notification necessity degree. That is, the information notification necessity degree determining unit 6 refers to a table as shown in FIG. 8 in addition to the traveling condition index value b1, the index values a1 to a5 regarding the intersection, and the belt withdrawal amount index value c1, and the index regarding the environmental information. The value is indexed by the coding / emergency state detection unit 12, and the information notification necessity determination processing unit 11 calculates the information notification necessity using the indexed environment information.

[Operation of the vehicle information notifying apparatus according to the second embodiment] Next, with reference to FIG. 9, for the processing procedure when the information notifying degree is obtained by the vehicle information notifying apparatus according to the second embodiment described above. And explain.

When the information notification necessity degree is created by the information notification necessity determination section 6, the environment information is acquired by the navigation system 31 in step S2 and recorded in the information recording section 7, and then in step S3, the intersection detection section is detected. When the intersection is detected by 4, the processing after step S41 is started, the environmental information acquired by the navigation system 31 is read by the coding / emergency state detection unit 12, and the environmental information index value is read using the table shown in FIG. e1
After obtaining e4 (encoding), the process proceeds to step S21.

In steps S21 and S22,
Similarly to the above, the information necessary for the determination of the information notification necessity degree is read out, the information notification necessity degree determination processing unit 11 obtains the traveling situation index value b1 from the traveling situation by referring to the situation confirmation index table, and step S42 Proceed to.

In step S42, the information notification necessity degree processing unit 11 calculates the information notification necessity degree N by performing the calculation according to the following equation 7, and then in step S4.
The process proceeds to 3.

N = a1 × (a2 + a3 + a4 + a5 + b1 + c1) × g × {1+ (e1 + e2 + e3 + e4) / 8} (Equation 7) In step S43, information notification necessity level Judgment processing unit 1
According to 1, the information notification necessity degree N calculated by the equation 7 in step S42 is compared with the preset threshold value X1, and when the information notification necessity degree N is larger than the threshold value X1, the processing is performed in step S26. If it is determined that the information notification necessity degree N is not larger than the threshold value X1, the process proceeds to step S44.

In step S44, the information notification necessity determination processing section 11 determines that the information notification necessity N is the threshold value X.
Since it is greater than 1, the information notification necessity degree is determined to be “large”, and the process ends. Here, the threshold value X1 is set to a value for determining the information notification necessity degree as “large” based on the information notification necessity degree N calculated by the equation 7, and FIGS.
When the table shown in FIG. 2 is used, it is set to "30", for example.

In step S44, the information notification necessity degree processing unit 11 determines that the information notification necessity degree N is the threshold value X.
It is determined whether it is 1 or less and is larger than the threshold value X2. When it is determined that the information notification necessity degree N is less than or equal to the threshold value X1 and greater than the threshold value X2, step S
If the information notification necessity N is equal to or less than the threshold value X1 but not greater than the threshold value X2, the process proceeds to step S28.

In step S27, it is determined that the information notification requirement is "medium", and in step S28 the information notification requirement is "small". Here, the threshold value X2 is set to a value that determines the information notification necessity degree as “medium” or “small” based on the information notification necessity degree N calculated by Expression 7, and is shown in FIGS. 2 and 8. When the table is used, it is set to "20", for example.

By performing the processing shown in FIG. 9 as described above, the information notification necessity determination processing section 11 needs to notify the information when the information notification necessity is "high" and "medium". When the information notification necessity is “small”, it is determined that the information notification is unnecessary.

"Effects of the vehicle information notifying apparatus according to the second embodiment" According to the vehicle information notifying apparatus according to the second embodiment that performs such processing, environmental information around the vehicle when an intersection is detected. It is possible to obtain the information notification necessity degree according to the above, it is possible to further improve the accuracy of the information notification necessity degree, and it is possible to reduce the number of unnecessary information notifications and improve the information notification effect.

According to this vehicle information notifying apparatus,
The information notification necessity can be obtained according to the environmental information when the presence or absence of the emergency traveling state is detected, and the accuracy of the information notification need can be further improved.

[Third Embodiment] Next, a vehicle information notifying apparatus according to a third embodiment of the invention will be described. The same contents as those of the vehicle information notification device according to the above-described embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

[Structure of Vehicle Information Notification Device According to Third Embodiment] As shown in FIG. 10, the vehicle information notification device according to the third embodiment has an information notification unit 8 and an information notification necessity determination processing unit. The vehicle information notification device according to the second embodiment differs from the vehicle information notification device according to the second embodiment in that a blind spot camera 41 connected to the vehicle 11 is provided.

The blind spot camera 41 picks up an image of the side of the vehicle surroundings, which is a blind spot from the driver, and outputs video information to the information notification necessity degree determination processing unit 11 and the information notification unit 8. The information notification unit 8 displays the video information on the display mechanism and presents it to the driver.

The information notification necessity determination processing section 11 controls the information notification section 8 so as to output a plurality of voices and to make the volume variable according to the information notification necessity degree. In addition, the information notification necessity determination processing unit 11 determines, according to the information notification necessity,
The information notification unit 8 is controlled so as to display and present the video information captured by the blind spot camera 41, and at the same time, the information notification unit 8 is controlled so as to output the audio together with the video information. Furthermore, the information notification necessity determination processing unit 11 uses the blind spot camera 41
The information unit 8 is controlled so as to display the image information picked up in 1 screen or divided into 2 or more screens and display a message on the screen.

Such information notification necessity degree determination processing unit 11
When the information is notified by controlling the information notification unit 8,
The information notification content is selected according to the intersection, the traveling status of the vehicle, the occupant status confirmation frequency, and environmental information around the vehicle, and the selected information notification content is notified.

[Operation of the vehicle information notifying apparatus according to the third embodiment] Next, the process when the information notifying apparatus for vehicle according to the third embodiment described above determines the information notification necessity degree and gives information The procedure will be described with reference to FIG.

The vehicular information notifying device performs steps S1 to S5 to obtain the right side building index value a4, the left side building index value a5, the running condition index value b1 and the belt withdrawal amount index value c1. In step S6, the information notification necessity degree determination processing unit 11 determines in steps S51 to S63 and steps S64 to
Information is notified in step S77. That is, by the processes of steps S51 to S63, the presence / absence of a building at the intersection, the vehicle speed, and the change in the occupant posture are determined to obtain the information notification necessity, the information notification content is selected, and the information is notified in steps S64 to S77. Notify me.

Specifically, first, in step S51, it is determined whether or not a building exists on the right side of the vehicle by determining whether or not the right side building index value a4 is "3". To do. When there is a building on the right side, the process proceeds to step S52, and when there is no building on the right side, the process proceeds to step S59.

In step S52, it is determined whether or not there is any building on the left side of the vehicle by determining whether or not the left side building index value a5 is "1". When it is determined that there is no building on the left side, the process proceeds to step S53, and when there is a structure on the left side, the process proceeds to step S57.

In step S53, it is determined whether or not the vehicle speed is high by determining whether or not the traveling condition index value b1 is "3". When the vehicle speed is high, the process proceeds to step S54, and when the vehicle speed is not high, the process proceeds to step S57.

In step S54, it is determined whether or not the belt withdrawal amount of the driver has changed by determining whether or not the belt withdrawal amount index value c1 is "2" or more. That is, in step S54, it is determined whether or not the driver has not checked the situation. When it is determined that the belt withdrawal amount index value c1 is "2" or more and the driver has not performed the status check, step S
If the belt withdrawal amount index value c1 is not “2” or more and the driver is performing the situation confirmation, the process proceeds to step S65.

In step S64, a building exists only on the right side due to the determinations in step S51 and step S52, and a blind spot is likely to occur on the right side. According to the determination in step S53, the vehicle speed is high, and further step S5.
Since the driver has not checked the situation according to the judgment of 4, the right side image is displayed by displaying the right side image display 51 as shown in FIG. 12, and the slow speed promotion such as "let's slow down" is promoted. The display 52 is displayed to display a creep promotion message, and the process ends.

Further, in step S65, step S5
Since the driver confirms the situation at 4, the right side image display 51 is not displayed as shown in FIG.
By performing step 2, the drive prompt message is displayed and the process ends.

Further, in step S57 after it is determined in step S53 that the vehicle speed is low, step S5
As in the case of 4, it is determined whether or not the driver has not checked the situation. If it is judged that the driver has not checked the situation, the process proceeds to step S66 to check the situation. If determined, the process proceeds to step S67.

In step S66, step S53
Since the vehicle speed is low due to the determination of No., only the right side image display 51 is displayed as shown in FIG. 14 and the process ends. On the other hand, in step S67, since the vehicle speed is low and the driver confirms the situation, the information notification unit 8 ends the process without displaying the surrounding image and the gradual acceleration display 52.

Further, after it is determined in step S52 that the left side building index value a5 is "1" and there is a building on both the right side and the left side of the vehicle, in step S55, as in step S53. If it is determined that the vehicle speed is high, and if it is determined that the vehicle speed is high, step S
The process proceeds to 56, and when it is determined that the vehicle speed is not high, the process proceeds to step S58.

In step S56, step S54
Similarly to the above, it is determined whether or not the driver's status is checked, and if it is determined that the status is not checked, the process proceeds to step S68, and if it is determined that the driver is checked, the step is performed. The process proceeds to S69.

In step S68, there are buildings on the right and left sides of the vehicle, the vehicle speed is high, and the situation has not been confirmed. Therefore, as shown in FIG. Image display 51 and left side image display 5
In addition to 3, the slow speed promotion display 52 is displayed. On the other hand, in step S69, since the situation confirmation is being performed,
As shown in FIG. 13, only the slow speed promotion display 52 is displayed.

After it is determined in step S55 that the vehicle speed is low, it is determined in step S58 whether or not the driver's situation has been checked, as in step S54, and the situation has not been checked. When it is determined, the process proceeds to step S70, and when it is determined that the situation confirmation is performed, the process proceeds to step S71.

In step S70, step S52
According to the judgment, there are buildings on the left and right sides, and the vehicle speed is slow, but the situation is not checked. Therefore, as shown in FIG. 16, the image is divided into right side image display 51 and left side image display 5
Then, the process ends. On the other hand, in step S71, since the situation confirmation is being performed, the processing ends without displaying the side image and the like.

After it is determined in step S51 that there is no building on the right side of the vehicle, it is determined in step S59 whether or not there is a building on the left side as in step S52. If it is determined that there is no building on the left and right sides, the process proceeds to step S60, and if it is determined that there is a building only on the left side, the process proceeds to step S61.

In step S60, step S53
Similarly, it is determined whether the vehicle speed is high. If it is determined that the vehicle speed is high, the process proceeds to step S72. If it is determined that the vehicle speed is not high, the process proceeds to step S73.

At step S72, since there are no buildings on the left and right sides and the vehicle speed is high, only the slow speed promotion display 52 is displayed as shown in FIG. 13. At step S73, there are no buildings on the left and right sides and the vehicle speed is Since it is low, the processing is terminated without displaying the side image and the like.

After it is determined in step S59 that the building exists only on the left side, it is determined in step S61 whether the vehicle speed is high, as in step S53. When it is determined that the vehicle speed is high, step S62 is performed. If it is determined that the vehicle speed is not high, the process proceeds to step S63.

In step S62, step S54
Similarly to the above, it is determined whether or not the driver's situation is confirmed, and if it is determined that the situation is not actually confirmed, the process proceeds to step S74, and if it is determined that the situation is confirmed, the step is performed. The process proceeds to S75.

In step S74, since the building exists only on the left side of the vehicle, the vehicle speed is high, and the situation has not been checked, the left side image display 53 is displayed as shown in FIG. The slow speed promotion display 52 is displayed. On the other hand, in step S75, since the situation has been confirmed, only the slow-motion promotion display 52 is displayed as shown in FIG.

After it is determined in step S61 that the vehicle speed is low, it is determined in step S63 whether or not the driver's situation has been confirmed, as in step S54, and the situation has not been confirmed. If it is determined, the process proceeds to step S76, and if it is determined that the situation confirmation is performed, the process proceeds to step S77.

In step S76, the building exists only on the left side and the vehicle speed is slow, but the situation has not been confirmed. Therefore, as shown in FIG. 18, the left side image display 53 is displayed and the process ends. . On the other hand, in step S77,
Since the situation has been confirmed, the processing is terminated without displaying the side image and the like.

[Effects of the vehicle information notification device according to the third embodiment] As described above in detail, according to the vehicle information notification device according to the third embodiment, the characteristics of the intersection and the traveling condition of the vehicle. , The information notification unit 8 can be controlled according to the confirmation frequency of the occupant to select the display content to notify the information,
Detailed information notification can be performed, and the information notification effect can be improved.

According to this vehicle information notifying apparatus,
Further detailed information notification can be performed by selecting the information content to be notified by performing the same processing as above using the characteristics of the intersection, the traveling condition of the vehicle, the degree of confirmation of the occupant, and the environmental information.

The above-mentioned embodiment is an example of the present invention. For this reason, the present invention is not limited to the above-described embodiment, and other than this embodiment, as long as it does not deviate from the technical idea of the present invention, various types according to the design etc. Of course, it is possible to change.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a vehicle information notification device according to a first embodiment to which the present invention is applied.

FIG. 2 is a diagram for explaining the contents of a situation confirmation index table.

FIG. 3 is a diagram for explaining obtaining an intersection shape.

FIG. 4 is a flowchart showing a processing procedure when notifying a driver of information by the vehicle information notification device according to the first embodiment to which the present invention is applied.

FIG. 5 is a flowchart showing a processing procedure for determining an information notification necessity degree by an information notification necessity determination processing unit.

FIG. 6 is a flowchart showing a processing procedure for updating the emergency state occurrence index value and the number of times of emergency state occurrence according to the presence / absence of occurrence of an emergency state.

FIG. 7 is a block diagram showing a configuration of a vehicle information notification device according to a second embodiment of the present invention.

FIG. 8 is a diagram showing index values for environmental information.

FIG. 9 is a flowchart showing a processing procedure when the information notification necessity degree determination processing unit determines the information notification necessity degree using environment information.

FIG. 10 is a block diagram showing a configuration of a vehicle information notification device according to a third embodiment of the present invention.

FIG. 11 is a flowchart showing a processing procedure when the information notification device for vehicle according to the third embodiment to which the present invention is applied determines the information notification necessity degree and notifies the information.

FIG. 12 is a diagram showing an information notification screen including a right side image display and a gradual speed promotion display.

FIG. 13 is a diagram showing an information notification screen including a gradual acceleration display.

FIG. 14 is a diagram showing an information notification screen including a right side image display.

FIG. 15 is a diagram showing an information notification screen including a right side image display, a left side image display, and a crawl promotion display.

FIG. 16 is a diagram showing an information notification screen including a right side image display and a gradual speed promotion display.

FIG. 17 is a diagram showing an information notification screen including a gradual speed promotion display and a left side image display.

FIG. 18 is a diagram showing an information notification screen including a left side image display.

[Explanation of symbols]

1 GPS processing unit 2 Occupant posture detector 3 Running condition detector 4 intersection detection section 5 Operation status confirmation degree determination unit 6 Information notification necessity determination unit 7 Information recording section 8 Information reporting section 11 Information notification necessity determination processing unit 12 Coded / emergency status detection unit 21 Memory processing unit 22 Record Update Section 31 navigation system 41 blind spot camera 51 Right side image display 52 Slow speed promotion display 53 Left side image display

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) H04B 7/26 G01C 21/00 A H04Q 7/34 H04B 7/26 K // G01C 21/00 106A F term (Reference) 2F029 AA02 AB07 AC06 AC09 AC18 5H180 AA01 CC04 LL07 LL15 LL20 5K067 AA35 BB03 BB21 DD28 DD51 EE02 FF02 FF23 FF25 HH22

Claims (10)

[Claims] 1. An occupant attitude detecting means for detecting an attitude of an occupant in a vehicle, an intersection detecting means for detecting a position of the vehicle to detect an intersection at which the vehicle enters, and information for informing the occupant. An informing means and a driving situation confirmation degree judging means for judging the degree of confirmation of the driving situation of the occupant from the occupant posture detected by the occupant posture detecting means at the intersection detected by the intersection detecting means, and the operating situation confirmation The confirmation necessity degree judging means for judging the necessity degree of the situation confirmation based on the judgment by the degree judging means, and the information notifying means so as to notify the information based on the judgment by the situation confirmation necessity degree judging means. An information notification device for a vehicle, comprising: information notification control means. 2. The confirmation necessity degree judging means judges that the necessity degree of the situation confirmation is high when the driving situation confirmation degree judging means judges that the degree of the driving situation confirmation is insufficient. The vehicle information notification device according to claim 1. 3. The intersection detecting means comprises at least one of an intersection, a means for detecting the type and presence / absence of a signal at the intersection, a means for detecting the shape of the intersection, and a means for detecting a building near the intersection. The vehicle information notification device according to claim 1, wherein 4. The confirmation necessity degree determining means indexes the intersection detected by the intersection detecting means as an intersection characteristic index, and determines the necessity degree of situation confirmation according to the intersection characteristic index. Item 1. The vehicle information notification device according to Item 1. 5. A driving situation detecting means for detecting a traveling situation of the vehicle is further provided, and the confirmation necessity determining means determines whether or not an emergency traveling state of the vehicle has occurred based on the traveling situation of the vehicle detected by the traveling situation detecting means. 2. The necessity of status confirmation is calculated according to the frequency of occurrence of the recorded emergency traveling state.
The vehicle information notification device according to item 1. 6. A driving situation detecting means for detecting a traveling situation of the vehicle is further provided, wherein the confirmation necessity degree judging means indexes the traveling situation of the vehicle detected by the traveling situation detecting means as a traveling characteristic index, and The vehicle information notification device according to claim 1, wherein the degree of necessity of situation confirmation is obtained according to the traveling characteristic index. 7. The confirmation necessity degree determining means determines the necessity degree of situation confirmation according to environmental information around the vehicle when the intersection is detected by the intersection detecting means. Vehicle information notification device. 8. The confirmation necessity degree determining means determines the necessity degree of the situation confirmation according to the environmental information when the presence or absence of the emergency traveling state detected by the traveling situation detecting means is detected. The vehicle information notification device according to claim 5. 9. The information notifying means has a plurality of types of information notifying functions, and the information notifying control means performs information notification by different information notifying functions according to the judgment made by the situation confirmation necessity degree judging means. The vehicle information notification device according to claim 1, wherein the information notification means is controlled. 10. The information notification control means selects information notification content according to any of the intersection detected by the intersection detection means, the traveling condition of the vehicle, the frequency of checking the occupant's condition, and environmental information around the vehicle. The vehicle information notifying apparatus according to claim 1, wherein the information notifying unit is controlled to notify the selected information notification content.