JP2013097606A - Risk level determination system for vehicle, risk level determination device for vehicle, and risk notification device for vehicle using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a risk level determination system for a vehicle and a risk level determination device for a vehicle, which allow information relating to a plurality of terminal holders to be appropriately handled, and to provide a risk level notification device for a vehicle, which uses the risk level determination system and the risk level determination device to enable a driver of a vehicle to be appropriately notified of risk levels relating to the plurality of terminal holders.SOLUTION: There is provided comprehensive risk level determination means 15a which weights a state risk level determined by state risk level determination means 60 on the basis of a position of a vehicle 1 detected by vehicle position detection means 11, a position of a terminal holder detected by terminal position detection means 21, and accident patterns recorded in a typical accident pattern database 10 and determines a comprehensive risk level being a risk level of the vehicle 1 to the terminal holder.

Description

  The present invention relates to a vehicle risk determination system and a risk determination device that determine the risk of a holder of a portable terminal using communication, and a vehicle risk notification device that uses these to notify a driver of a vehicle. Is.

  In recent years, inter-pedal communication has been developed in which communication is performed between a holder of a portable terminal (hereinafter referred to as a terminal holder) and a vehicle (also referred to as a “step between cars”). Here, the terminal holder is a pedestrian, and this pedestrian includes a person who rides a bicycle.

In inter-walk communication, the position and movement speed of a terminal holder are detected by a detector such as a GPS provided in a portable terminal held by the terminal holder, and the position of the vehicle is detected by a detector such as a GPS provided in the vehicle. The vehicle speed is detected, and information detected by these detectors provided in the portable terminal and the vehicle is communicated.
A technology related to safety between pedestrians using this communication between pedestrians has also been developed.

  The technology of Patent Literature 1 determines whether the terminal holder is in a walking state or a bicycle riding state based on the movement speed or vertical vibration of the terminal holder detected by the terminal detector. Depending on the state, the terminal holder or the driver of the vehicle is supported such as notifying the approach of the vehicle or the terminal holder.

JP 2009-251758 A

  The technique of patent document 1 determines the state with respect to each terminal holder. For this reason, when there are a plurality of terminal holders detected in the vehicle, the terminal holders are individually handled. Therefore, the driver of the vehicle is provided with all the information about each of the plurality of terminal holders, and particularly when there are many terminal holders to be notified, the driver of the vehicle appropriately processes the provided information. There is a risk that it cannot be done.

  The present invention was devised in view of such problems, and is capable of appropriately handling information relating to a plurality of terminal holders, and a vehicle risk determination system and a vehicle risk determination device, Provided is a vehicle risk notification device capable of appropriately notifying a vehicle driver of the risk level of a plurality of terminal holders using the risk level determination system and the risk level determination device. The purpose is to do.

  (1) In order to achieve the above object, a vehicle risk determination system according to the present invention is equipped with a vehicle position detecting means for detecting the position of the vehicle and a pedestrian (bicycle) equipped with a portable terminal. Terminal position detecting means for detecting the position of the portable terminal held by the terminal holder as a position of the terminal holder, and detecting the movement of the portable terminal as the behavior of the terminal holder Behavior detecting means, first information communication means that communicates with the surrounding portable terminal mounted on the vehicle, second information communication means that communicates with the surrounding vehicle equipped on the portable terminal, and the behavior A terminal holder classifying unit that classifies the terminal holders according to behavior characteristics based on the behavior of the terminal holders detected by the detecting unit; and the terminal holders classified by the terminal holder classifying unit. A terminal having a potential risk determination unit that determines a potential risk level that is a risk level corresponding to the behavior characteristic of the terminal holder based on a class, and at least the terminal determined by the potential risk level determination unit A typical accident pattern between a pedestrian and a vehicle was recorded, and a situation risk determination means for determining a situation risk that is a risk depending on the situation of the terminal holder based on the potential risk of the holder A typical accident pattern database; a position of the vehicle detected by the vehicle position detection means; a position of the terminal holder detected by the terminal position detection means; and the accident pattern recorded in the typical accident pattern database. Based on the situation risk determined by the situation risk determination means, the overall risk is determined as the risk to the vehicle of the terminal holder. Is characterized by comprising a total risk determination means that.

  (2) It further comprises a position risk database in which a correspondence relationship between the position of the pedestrian and the position risk that is the risk of the position is recorded, and the situation risk determination means is detected by at least the terminal position detection means A position risk determination means for determining a position risk that is a risk corresponding to the position of the terminal holder based on the position of the terminal holder and the correspondence recorded in the position risk database; The situation risk based on the position risk of the terminal holder determined by the position risk determination means and the potential risk of the terminal holder determined by the potential risk determination means Is preferably determined.

  (3) It further includes a map information database in which map information such as road infrastructure information such as intersections and lanes is recorded, and the position risk determination means uses the map information recorded in the map information database. It is preferable that the degree of situation risk is determined using the map information recorded in the map information database.

  (4) The vehicle includes the typical accident pattern database and the overall risk determination unit, and the mobile terminal includes the behavior detection unit, the terminal holder classification unit, and the situation risk determination unit. The position information of the terminal holder detected by the terminal position detection means and the situation risk information of the terminal holder determined by the situation risk determination means are transmitted by the second information communication means, It is preferable that it is acquired by the first information communication means.

  (5) The vehicle includes the terminal holder classification unit, the situation risk determination unit, the typical accident pattern database, and the comprehensive risk determination unit, and the portable terminal includes the behavior detection unit, The position information of the terminal holder detected by the terminal position detection means and the behavior information of the terminal holder detected by the behavior detection means are transmitted by the second information communication means, and the first information communication means It is preferable that it is acquired by.

  (6) Moreover, the risk determination apparatus for a vehicle according to the present invention includes vehicle position detection means for detecting the position of the vehicle, and information communication means for communicating with a portable terminal held by a terminal holder around the vehicle. The information communication means acquires position information of the mobile terminal as position information of the terminal holder, acquires movement information of the mobile terminal as behavior information of the terminal holder, and is acquired by the information communication means. Terminal holder classifying means for classifying the terminal holder according to behavior characteristics based on the behavior information of the terminal holder, and the terminal based on at least the classification of the terminal holder classified by the terminal holder classification means The terminal determined by at least the potential risk determination means has a potential risk determination means for determining a potential risk that is a risk according to the behavior characteristic of the holder. A typical accident pattern between a pedestrian and a vehicle is recorded, and a situation risk determination means for determining a situation risk that is a risk according to the situation of the terminal holder based on the potential risk of the holder. A typical accident pattern database; a position of the vehicle detected by the vehicle position detection means; position information of the terminal holder acquired by the information communication means; and the accident pattern recorded in the typical accident pattern database. And a comprehensive risk determination unit that weights the situation risk determined by the situation risk determination unit and determines a total risk that is a risk to the vehicle of the terminal holder. Yes.

  (7) It further includes a position risk database in which a correspondence relationship between the position of the pedestrian and the position risk that is the risk of the position is recorded, and the situation risk determination means is acquired by at least the information communication means. And a position risk determination means for determining a position risk that is a risk corresponding to the position of the terminal holder based on the position information of the terminal holder and the correspondence relationship recorded in the position risk database. The situation risk based on the position risk of the terminal holder determined by the position risk determination means and the potential risk of the terminal holder determined by the potential risk determination means Is preferably determined.

  (8) A map information database in which map information such as road infrastructure information such as intersections and lanes is recorded is further provided, and the position risk determination unit is configured to detect the position risk based on the map information recorded in the map information database. It is preferable that the degree of situation risk is determined based on the map information recorded in the map information database.

(9) Further, the vehicle danger notification device according to the present invention is configured so that the overall danger is determined according to the overall risk of the terminal holder determined by the vehicle risk determination system or the vehicle risk determination device. It is characterized by comprising information provision execution means for providing the degree information to the driver of the vehicle.
(10) It is preferable that the information provision execution unit provides information on a total risk level for the terminal holders of a predetermined number or less.

  (1) Therefore, according to the risk determination system for a vehicle of the present invention, the comprehensive risk determination means is potentially used by the situation risk determination means based on the position of the vehicle, the position of the terminal holder, and the accident pattern. In order to weight the situation risk determined on the basis of the risk and determine the overall risk that is the risk to the terminal holder's vehicle, the overall risk of each terminal holder will be determined respectively. It is possible to appropriately handle risk level information on human terminal holders.

  (2) If the situation risk level judging means is configured to determine the situation risk level based not only on the potential risk level but also on the position risk level, it is possible to improve the accuracy of the situation risk level and thereby improve the terminal holder. Such a risk can be determined with higher accuracy.

(3) If the position risk determination means is configured to determine the position risk using map information in addition to the position of the terminal holder and the correspondence recorded in the position risk database, the position risk By improving the determination accuracy, it is possible to determine the degree of risk for the terminal holder with higher accuracy.
Further, if the situation risk determination means is configured to determine the situation risk using the map information in addition to the potential risk and the situation risk, the situation holding degree is improved by improving the accuracy of the situation risk determination. It is possible to determine the degree of risk to the person with higher accuracy.

(4) If the mobile terminal is configured to include behavior detection means, terminal holder classification means, and situation risk determination means, the terminal holder is classified even when there is no vehicle around the mobile terminal. And the situation risk of the terminal holder can be determined. Further, since the position and behavior of the terminal holder are used for the terminal holder classification and the situation risk determination over a long period of time, the accuracy of the classification and the situation risk can be improved.
(5) If the vehicle is configured to include the terminal holder classification unit and the situation risk determination unit, the configuration of the mobile terminal can be simplified. Thereby, the risk level of more terminal holders can be determined.

  (6) According to the vehicle risk determination apparatus of the present invention, the overall risk determination means uses the situation risk determination means based on the position of the vehicle, the position of the terminal holder, and the accident pattern. In order to weight the situation risk determined based on the terminal and determine the overall risk that is the risk to the terminal holder's vehicle, the overall risk of each terminal holder will be determined respectively. It is possible to appropriately handle risk level information on the terminal holder.

  (7) If the situation risk level judging means is configured to determine the situation risk level based not only on the potential risk level but also on the position risk level, the situation risk level determination accuracy is improved, so that the terminal holder can be improved. Such a risk can be determined with higher accuracy.

(8) If the position risk degree determining means is configured to determine the position risk degree using the map information in addition to the position of the terminal holder and the correspondence relationship recorded in the position risk degree database, the position risk degree By improving the determination accuracy, it is possible to determine the degree of risk for the terminal holder with higher accuracy.
Further, if the situation risk determination means is configured to determine the situation risk using the map information in addition to the potential risk and the situation risk, the situation holding degree is improved by improving the accuracy of the situation risk determination. It is possible to determine the degree of risk to the person with higher accuracy.

  (9) According to the vehicle danger notification device of the present invention, the vehicle is provided with the information providing execution means for providing the risk information to the driver of the vehicle according to the weighted total risk of the terminal holder. It is possible to appropriately inform the driver of the degree of risk applied to a plurality of terminal holders.

  (10) If the information providing execution means is configured to provide information on the total risk level relating to a predetermined number of terminal holders or less, the information provided to the driver of the vehicle is limited, thereby driving the vehicle. It is possible to appropriately notify the risk level of a plurality of terminal holders. In addition, the information provision execution means appropriately provides information on the degree of risk applied to terminal holders of a predetermined number or less such as the number corresponding to the upper limit of the information capacity that can be stored in a short period of time. The terminal holder can be made aware of the degree of risk.

BRIEF DESCRIPTION OF THE DRAWINGS It is a block diagram which illustrates the danger determination apparatus of a vehicle concerning the 1st Embodiment of this invention, a danger determination system, and the danger notification apparatus of a vehicle using these. It is a flowchart which shows determination of the comprehensive risk of a terminal holder by the risk determination apparatus and risk determination system of the vehicle concerning 1st Embodiment of this invention. It is a flowchart which shows the alerting | reporting of the total risk level by the danger alerting | reporting apparatus of the vehicle of this invention. It is a flowchart which shows the alerting | reporting of the total risk degree in the portable terminal of this invention. It is a block diagram which illustrates the danger determination apparatus of a vehicle concerning the 2nd Embodiment of this invention, a danger determination system, and the danger notification apparatus of the vehicle using these.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
<First Embodiment>
[Constitution]

  First, the configuration of a vehicle risk determination device, a vehicle risk determination system, and a vehicle risk notification device using them according to the first embodiment will be described. The vehicle according to the present embodiment is a so-called large or medium-sized automobile such as a truck or a bus.

  As shown in FIG. 1, the vehicle 1 includes a GPS (vehicle position detection means) 11, an HMI (Human Machine Interface, information provision execution means) 12, a vehicle state detector 13, and a distance between pedestrians connected to an antenna 14a. A communication apparatus (information communication means, first information communication means) 14, a risk determination ECU 15 having a comprehensive risk determination section (total risk determination means) 15a, and a typical accident pattern database (DB) readable by the ECU 15 10 and a map information database (DB) 31.

The GPS 11 detects the position of the vehicle 1. The GPS 11 detects the latitude / longitude information of the vehicle 1 as position information of the vehicle 1 via a GPS antenna (not shown). The latitude / longitude information is supplemented by so-called autonomous navigation in which information detected by a vehicle speed sensor for detecting the traveling speed of the vehicle 1 or a sensor for obtaining the steering angle of the vehicle 1 is accumulated to detect the direction. The vehicle 1 can be treated as position information.
The GPS 11 is connected to the risk determination ECU 15, and the position information of the vehicle 1 detected by the GPS 11 is transmitted to the risk determination ECU 15.

The HMI 12 is an interface between the driver and the vehicle equipment, and provides information to the driver of the vehicle 1. A monitor, a speaker, etc. can be used as this HMI12.
The HMI 12 is connected to a risk determination ECU 15, and notifies the driver of the vehicle 1 of a danger when an instruction to provide information regarding the risk is given from the risk determination ECU 15. For example, when an instruction to provide information related to the degree of danger is given, the HMI 12 displays the information content on the monitor, and alerts the driver of the host vehicle 1 by sounding a warning sound or a message concerning the information through a speaker.

The vehicle state detector 13 detects the state of the vehicle 1. As the vehicle state detector 13, a vehicle speed sensor, a blinker switch, or the like can be applied. In this case, the vehicle speed or turn signal operation of the vehicle 1 can be detected as the state of the vehicle 1.
The vehicle state detector 13 is connected to the risk determination ECU 15, and information on the state of the vehicle 1 detected by the vehicle state detector 13 is transmitted to the risk determination ECU 15.

The inter-pedal communication device 14 communicates with the mobile terminal 2 held by the terminal holder around the vehicle 1. In addition, the terminal holder holding the portable terminal 2 is a pedestrian, and this pedestrian includes a person who rides a bicycle.
The inter-vehicle communication device 14 is connected to an antenna 14a for communicating with the surrounding mobile terminals 2, and is connected to the risk determination ECU 15 to transmit information acquired by communication and to transmit information from the vehicle 1.

Here, the structure of the portable terminal 2 which is a communication target by the inter-step communication of the vehicle 1 will be described.
As shown in FIG. 1, the portable terminal 2 includes a GPS (terminal position detecting means) 21, a behavior detector 22, an information providing execution unit 23, and an inter-pedestrian communication device (second information communication) connected to an antenna 24a. Means) 24, a situation risk level determination unit (situation risk level determination unit) 60 having a potential risk level determination unit (potential risk level determination unit) 62 and a position risk level determination unit (position risk level determination unit) 64. And various databases (DB) that can be read out by the situation risk determination unit 60. Such various databases include at least a typical motion pattern database (DB) 20, a map information database (DB) 30, and a position risk database (DB) 40.

The GPS 21 detects the position of the mobile terminal 2 as the position of the terminal holder. The GPS 21 detects latitude / longitude information of the portable terminal 2 as position information of the terminal holder via a GPS antenna (not shown).
The GPS 21 is connected to the situation risk determination unit 60, and the location information of the terminal holder detected by the GPS 21 is transmitted to the inter-vehicle communication device 24 in addition to the situation risk determination unit 60.

  The behavior detector 22 detects the movement of the mobile terminal 2 as the behavior of the terminal holder. As the behavior detector 22, an acceleration sensor, an angular velocity sensor, or the like can be used, and the GPS 21 may be used in combination or in combination. The behavior detector 22 detects the speed and acceleration of the terminal holder.

The behavior detector 22 is connected to the situation risk determination unit 60, and the behavior information of the terminal holder detected by the behavior detector 22 is transmitted to the situation risk determination unit 60. The behavior information such as the speed of the terminal holder detected by the behavior detector 22 is transmitted to the inter-pedestrian communication device 24 in addition to the situation risk determination unit 60.
The information provision execution unit 23 is an interface between the terminal holder and the portable terminal 2 and provides information to the terminal holder. As this information provision execution part 23, a monitor, a speaker, a vibrator, etc. can be used.

  The information provision execution unit 23 is connected to the inter-pedal communication device 24, and when an information provision instruction regarding the degree of danger is given via the inter-pedal communication device 24, the terminal holder is informed of the danger. For example, when an information provision instruction relating to the degree of danger is given, the information provision execution unit 23 displays the information content on the monitor, sounds a warning sound or a message regarding the information with a speaker, or vibrates the portable terminal 2 with a vibrator. To inform the terminal holder of the danger.

  The information provision execution unit 23 provides information on the degree of risk limited to a predetermined number of vehicles or less when an information provision instruction on the degree of risk is given from a plurality of vehicles larger than the predetermined number. As a result, the terminal holder is notified of the danger.

This predetermined number is defined as the upper limit of the number of information that can be properly recognized by the terminal holder, such as 7 ± 2 (5 to 9) units corresponding to so-called magical numbers known as the capacity of storage held for a short period of time, for example. Is done.
Further, when the information is limited, the vehicle 1 that provides the information provides information in preference to the one having a higher total risk based on the total risk described later of the terminal holder.

  The inter-vehicle communication device 24 communicates with the vehicle 1 around the mobile terminal 2. The inter-vehicle communication device 24 is connected to an antenna 24a for communicating with the surrounding vehicle 1 and the situation risk determination unit 60 to transmit information from the mobile terminal 2.

  The situation risk determination unit 60 includes a potential risk determination unit 62 and a position risk determination unit 64 having a terminal holder classification unit (terminal holder classification means) 62a, and various databases 20, 30, 40. Is used to determine the situation risk, which is a risk according to the situation of the terminal holder. First, these databases 20, 30, and 40 will be described.

The typical motion pattern DB 20 records pedestrian classifications corresponding to typical pedestrian movements, and records correspondence relationships between behavior characteristics and pedestrian classifications. The typical movement pattern DB 20 records typical movements exemplified in the following (I) to (III) and pedestrian classifications corresponding thereto.
(I) A pedestrian moving at a speed lower than the normal walking speed is classified as an elderly person or a healthy person who is walking while walking (hereinafter referred to as “while walking”). For example, a pedestrian having a lower speed than a normal walking speed such as 4 km / h to 6 km / h is classified as an elderly person or “while walking”. “Walking pedestrian” can be determined from the fact that the movement speed has dropped from the middle as a result of learning the movement speed of the pedestrian. On the other hand, an elderly person can be determined because the moving speed is always low.
(II) A pedestrian whose speed is higher than the normal walking speed and whose behavior is linear or turning is classified as a person who is riding a bicycle (hereinafter also referred to as a bicycle rider).
(III) A pedestrian whose movement is such that the rate of change in speed is large near the normal walking speed, the change in acceleration or acceleration direction is large, or the traveling direction changes frequently, is classified as a child.
Note that the typical motion pattern DB 20 is not limited to those recorded in the above (I) to (III), but may also include those that further include normal adult pedestrians as the classification of terminal holders.

  The map information DB 30 records road data associated with latitude / longitude information. This road data includes at least road infrastructure information such as roadways, intersections, pedestrian crossings, lane information, and road type information. Here, the lane information refers to information such as the number of lanes, and the road type information refers to type information such as a motorway.

The position risk DB 40 records the correspondence between the position of the pedestrian and the position risk that is the risk of this position. Correspondences exemplified in the following (I) and (II) are recorded in the position risk DB 40.
(I) When the pedestrian is located around or within the intersection, the position risk is recorded so that the risk increases as the position of the intersection and the pedestrian approaches. That is, in the positional relationship between the position of the pedestrian and the position of the intersection, the position risk degree of the pedestrian positioned at the intersection is recorded as the largest.
(II) Location risk is recorded when a pedestrian is on the lane. For example, the position risk of a position where no pedestrian crossing is laid is recorded larger than the position on the pedestrian crossing, and the position risk is increased so that the position on the lane increases as it approaches the center line. It is recorded.

Next, the terminal holder classification | category part 62a which the potential risk determination part 62 has is demonstrated.
The terminal holder classification unit 62a classifies the terminal holders according to their behavior characteristics based on the behaviors of the terminal holders detected by the behavior detector 22 and the correspondences recorded in the typical motion pattern DB 20. That is, the terminal holder classification unit 62a classifies the terminal holder by reading out the classification corresponding to the behavior of the terminal holder from the typical motion DB.

The potential risk determination unit 62 determines a potential risk that is a risk according to the behavior characteristic of the terminal holder based on the classification of the terminal holder classified by the terminal holder classification unit 62a. is there.
The potential risk level determination unit 62 determines the risk level according to the classification of a child, an elderly person, or the like. In this determination, for example, a risk level corresponding to each classification of the terminal holder is set in advance, and the risk level of the terminal holder is determined by applying the preset risk level as a potential risk level. .

The position risk determination unit 64 uses the map information recorded in the map information DB 30 based on the position of the terminal holder detected by the GPS 21 and the correspondence relationship recorded in the position risk DB 40. The position risk is determined according to the position of the position. That is, the position risk determination unit 64 determines the position risk of the terminal holder by reading the position risk corresponding to the position of the terminal holder from the position risk DB.
The above-described potential risk and position risk are used to determine the situation risk.

Based on the potential risk determined by the potential risk determination unit 62 and the position risk determined by the position risk determination unit 64, the situation risk determination unit 60 determines the situation risk of the terminal holder. Judgment. The situation risk is a risk according to the positional relationship between the classified terminal holder position and the position of the road infrastructure. In other words, it is a risk degree according to the situation where the classified terminal holder is located. is there.
The situation risk level determination unit 60 corrects the risk level obtained by adding or multiplying the potential risk level and the position risk level to determine the status risk level.

The determination of the situation risk by the situation risk determination 60 is illustrated in the following (I) to (III).
(I) When a terminal holder classified as a child is located near the intersection, the probability of popping out is high, so that a terminal holder classified as an elderly person is located around the intersection. The degree of risk corresponding to the positional relationship between the terminal holder and the road infrastructure, that is, the situation risk is large.
Therefore, in this case, the situation risk determination unit 60 performs correction to increase the risk that combines the potential risk and the position risk, and determines the corrected risk as the situation risk.

(II) When a terminal holder classified as an elderly person or “while walking” is located on the lane, it is highly likely that the attention is reduced. The situation risk is higher than when it is located on the line.
Therefore, in this case, the situation risk determination unit 60 performs correction to increase the risk that combines the potential risk and the position risk, and determines the corrected risk as the situation risk.

(III) In the case of a terminal holder classified as a bicycle rider, the terminal holder located in the lane on the exclusive road has a higher situation risk than the terminal holder located in the lane where the bicycle can travel.
Therefore, in this case, the situation risk determination unit 60 performs correction to increase the risk that combines the potential risk and the position risk, and determines the corrected risk as the situation risk.

Note that the determination by the situation risk determination unit 60 is not limited to those recorded in (I) to (III) above, and when the terminal holder is classified as a child or an elderly person, these children and elderly persons If the vehicle is on the lane, the combined risk of potential risk and position risk may be increased.
The situation risk determination unit 60 is connected to the inter-walk communication device 24, and information on the situation risk of the terminal holder determined by the situation risk determination unit 60 is transmitted to the inter-walk communication device 24.

  Since the portable terminal 2 includes the inter-pedal communication device 24 and the vehicle 1 includes the inter-pedal communication device 14, the vehicle 1 and the portable terminal 2 can communicate with each other. For example, the situation risk information transmitted to the inter-vehicle communication device 24 in the portable terminal 2 and the information on the speed, position and classification of the terminal holder (terminal holder information) It is transmitted to the vehicle 1.

Hereinafter, the configuration of the vehicle 1 will be described.
The situation risk information and the terminal holder information received and acquired via the inter-pedestrian communication device 14 are transmitted to the risk determination ECU 15. The ECU 15 is an electronic control unit configured as, for example, an LSI device or an embedded electronic device in which a microprocessor, ROM, RAM, and the like are integrated.

The comprehensive risk determination unit 15a of the risk determination ECU 15 determines the comprehensive risk of the terminal holder based on the position information of the vehicle 1 and the position information of the terminal holder.
In other words, the overall risk determination unit 15a determines the overall risk by weighting the situation risk as the distance between the vehicle 1 and the terminal holder decreases.
The overall risk determination unit 15 a also determines the overall risk that is the risk of the terminal holder with respect to the vehicle 1 using the typical accident pattern DB 10 and the map information DB 31. First, these DBs 10 and 31 will be described.

The typical accident pattern DB 10 is a record of typical accident patterns in which accidents between vehicles and pedestrians are likely to occur. Examples of such patterns are shown in the following (I) to (IV).
(I) A pattern in which a vehicle is traveling on a straight road with no traffic lights or a pedestrian crossing at a predetermined vehicle speed or more and there are elderly people slowly crossing from the right side to the left side of the vehicle at night. The predetermined vehicle speed here refers to a normal speed traveling at a constant speed on a straight road with good flow.
(II) When the vehicle turns to the left, the bicycle rider is traveling straight from the rear of the vehicle, and there is a road tree between the vehicle 1 and the bicycle rider, resulting in poor visibility.
(III) A pattern in which a child approaches from a road that intersects a road on which a vehicle travels at an intersection with poor visibility in a residential area.
(IV) A pattern that faces a bicycle rider who runs on the right side of a curved road ahead of the vehicle while the vehicle is driving on a narrow road at night.

  The map information DB 31 is a database that is more detailed than the map information DB 30. In addition to the information recorded in the map information DB 30, information on urban districts such as residential areas, information on roadside trees along roadways, and intersection prospects It also has information such as visibility information such as good or bad.

The overall risk determination unit 15a includes the DBs 10 and 31, the position information of the vehicle 1, the information detected by the vehicle state detector 13, the position information of the terminal holder, the speed information, the classification information, and the situation risk. Based on the information, the overall risk that is the risk of the terminal holder with respect to the vehicle 1 is determined.
That is, if the typical accident pattern DB 10 has a pattern that matches the classification of the terminal holder, the positional relationship between the terminal holder and the vehicle 1, and the state of the vehicle 1, the overall risk determination unit 15 a The overall risk is determined by weighting so as to increase the situation risk.

  For example, the comprehensive risk determination unit 15a classifies the terminal holder as an elderly person, and the elderly person is in front of the vehicle 1 on a lane without a signal or a pedestrian crossing. When the vehicle is ON, if the vehicle 1 moves from right to left at a speed lower than the normal walking speed with respect to the traveling direction of the vehicle 1, this situation matches the pattern of the typical accident pattern (I) described above. Therefore, the total risk is determined by weighting the terminal holder so as to increase the situation risk.

  In addition, if it comprises so that a weighting coefficient may be recorded on each typical accident pattern DB10 with each recorded pattern, the comprehensive risk determination part 15a will apply a said coefficient to a situation risk, and a terminal holder The overall risk can be determined.

Further, the risk determination ECU 15 selects a terminal holder whose total risk is determined by the total risk determination unit 15a.
That is, when a plurality of terminal holders greater than the predetermined number are detected, the risk determination ECU 15 selects terminal holders having a predetermined number or less. This selection is made by selecting a predetermined number of people in descending order of overall risk.

This predetermined number of people is, for example, the upper limit of the number of people that can be properly recognized by the driver of the vehicle 1 such as 7 ± 2 (5 to 9) people corresponding to the so-called magical number known as the storage capacity held for a short period of time. It is prescribed.
Further, when limiting the information, the risk determination ECU 15 selects the terminal holders to be equal to or less than the predetermined number in descending order of the total risk, so that it can be said that the driver can understand the target to be preferentially noted.

Further, when the total risk is determined by the total risk determination unit 15a, the risk determination ECU 15 operates the HMI 12 to provide information related to the total risk of the terminal holder, so that the driver of the vehicle 1 To inform the total risk of the terminal holder.
Similarly, when the total risk is determined by the total risk determination unit 15a, the risk determination ECU 15 applies the total risk to the information provision execution unit 23 of the portable terminal 2 via the inter-pedal communication devices 14 and 24. By instructing the provision of information, the terminal holder of the portable terminal 2 is notified of the total risk level.

  When more than a predetermined number of terminal holders are detected, the risk determination ECU 15 notifies the driver of the vehicle 1 of the total risk of the terminal holders of the selected predetermined number or less. In this case, information on a terminal holder having a high overall risk is notified preferentially.

[Action / Effect]
The configurations of the vehicle risk determination device, the vehicle risk determination system, and the vehicle risk notification device using them according to the first embodiment of the present invention are configured as described above. For this reason, in the vehicle risk determination system, the overall risk determination flow as shown in FIG. 2 is periodically performed.

In step S1, information on the terminal holder is acquired. This information includes the position information, behavior information, and speed information of the terminal holder.
In step S10, the typical motion pattern DB 20 is read.
In step S20, the terminal holder is classified by reading out the classification of the terminal holder corresponding to the behavior information of the terminal holder acquired in step S10 from the typical motion pattern DB 20 read in step S10.

In step S30, the potential risk is determined based on the classification of the terminal holder in step S20.
In step S40, the map information DB 30 is read.
In step S50, the position risk is determined using the map information DB 30 in step S40.

In step S60, the situation risk of the terminal holder is determined based on the potential risk in step S30 and the position risk in step S50.
In the present embodiment, these steps S10 to S60 are performed in the mobile terminal 2.

In step S70, information on the vehicle 1 is acquired. This information includes information related to the state of the vehicle 1 such as position information of the vehicle 1, vehicle speed information, operation information of turn signal switches and headlight switches.
In step S80, the typical accident pattern DB 10 is read.

In step S90, the terminal holder information acquired in step S10, the terminal holder status risk information determined in step S60, the vehicle 1 information acquired in step S70, and read in step S80. The overall risk is determined based on the typical accident pattern DB 10.
Then, this control cycle ends (end).
In the present embodiment, these steps S70 to S90 are performed in the vehicle 1.

Next, in the vehicle risk notification device, the total risk is notified according to the flow shown in FIG. This flow is performed periodically.
In step S100, the total risk levels of all terminal holders who can communicate around the vehicle 1 are acquired.

  In step S110, it is determined whether the number of terminal holders whose overall risk level is determined is greater than a predetermined number. If the number of terminal holders is greater than the predetermined number, the process proceeds to step S120, and if the number of terminal holders is equal to or less than the predetermined number, the process proceeds to step S130.

In step S120, terminal holders of a predetermined number or less are selected according to the total risk.
In step S130, the total risk level for terminal holders of a predetermined number or less is notified.
Then, this control cycle ends (end).
These steps S100 to S130 are performed in the vehicle 1.

Next, in the portable terminal 2, the total risk degree of the terminal holder is notified through a flow as shown in FIG. This flow is performed periodically.
In step S200, it is determined whether the terminal holder's total risk is received from a greater number of vehicles. If it is received from more vehicles than the predetermined number, the process proceeds to step S210, and if it is received only from the predetermined number of vehicles or less, the process proceeds to step S220.

In step S210, a predetermined number of vehicles or less are selected according to the total risk.
In step S220, the terminal holder is informed of the overall risk transmitted from less than a predetermined number of vehicles.
Then, this control cycle ends (end).

  Therefore, according to the vehicle risk determination device, the vehicle risk determination system, and the vehicle risk notification device using these according to the present invention, the comprehensive risk determination unit 15a detects the position of the vehicle 1 detected by the GPS 11 and Based on the accident pattern recorded in the typical accident pattern DB 10 and the situation risk information of the terminal holder determined by the situation risk determination unit 60, the terminal holder's situation risk is weighted. In order to determine the overall risk level, which is the risk level for the vehicle of the holder, the total risk level of each terminal holder is determined, and information on the risk level (total risk level) applied to a plurality of terminal holders. Can be handled appropriately.

  The situation risk determination unit 60 determines the situation risk of the terminal holder based on the position risk in addition to the potential risk. Such a risk can be determined with higher accuracy.

Since the position risk determination unit 64 determines the position risk using the map information recorded in the map information DB 30 in addition to the position of the terminal holder and the correspondence relationship recorded in the position risk DB 40, the position risk As the degree determination accuracy is improved, it is possible to more accurately determine the degree of risk for the terminal holder.
Moreover, since the situation risk level determination unit 60 determines the situation risk level using the map information recorded in the map information DB 30 in addition to the potential risk level and the situation risk level, the situation risk level determination accuracy is improved. By doing so, it is possible to more accurately determine the degree of risk for the terminal holder.

  Since the portable terminal 2 includes the behavior detector 22 and the potential risk determination unit 62 including the terminal holder classification unit 62a, the classification of the terminal holder is performed even when there is no vehicle around the portable terminal 2. And the terminal terminal holder's potential risk can be determined. Further, since the position and behavior of the terminal holder are used for the terminal holder classification determination and the potential risk determination over a long period of time, the accuracy of the classification determination and the potential risk determination can be improved.

  In addition, since the HMI 12 is provided to provide the risk information to the driver of the vehicle 1 in accordance with the weighted total risk of the terminal holder, the driver of the vehicle 1 has a total risk for a plurality of terminal holders. The degree can be notified appropriately.

  Since the HMI 12 provides information on the total risk level for terminal holders of a predetermined number or less, the information provided to the driver of the vehicle 1 is limited, so that the driver of the vehicle 1 holds a plurality of terminals. It is possible to appropriately notify the total risk level on the person. In addition, the HMI 12 appropriately provides information on the degree of risk applied to terminal holders of a predetermined number or less, such as the number of persons corresponding to the upper limit of the information capacity that can be stored in a short period of time, thereby appropriately providing a plurality of terminal holders. Can recognize the overall risk of the

Second Embodiment
Next, a second embodiment of the present invention will be described with reference to the drawings. The vehicle risk determination device, the vehicle risk determination system, and the vehicle risk notification device using these according to the second embodiment of the present invention are different from the first embodiment in the configuration of the vehicle and the portable terminal.
Except for the points described here, the configuration is the same as that of the first embodiment, and for these, the same reference numerals are used and description of each part is omitted.

As shown in FIG. 5, the portable terminal 2 includes a GPS (terminal position detecting means) 21, a behavior detector 22, an information providing execution unit 23, and an inter-pedestrian communication device (second information communication) connected to an antenna 24a. Means) 24.
The GPS 21, the behavior detector 22, the information provision execution unit 23, and the inter-pedal communication device 24 are the GPS 21 and the behavior detector according to the first embodiment except for the connection relationship between the GPS 21 and the behavior detector 22 and the inter-pedal communication device 24. 22, the same configuration as the information provision execution unit 23 and the inter-pedal communication device 24.
The GPS 21 and the behavior detector 22 are connected to the inter-vehicle communication device 24.

The inter-pedal communication device 24 transmits the position information of the terminal holder holding the portable terminal 2 detected by the GPS 21 and the behavior information of the terminal holder holding the portable terminal 2 detected by the behavior detector 22. Is done.
That is, the mobile terminal 2 according to the present embodiment has a potential risk determination unit 62 having a terminal holder classification unit 62a and a position risk determination unit 64 from the configuration of the mobile terminal 2 according to the first embodiment. It is the structure which abbreviate | omitted the structure of the degree determination part 60, typical motion pattern DB20, map information DB30, and position risk degree DB40.

  Since the portable terminal 2 includes the inter-pedal communication device 24 and the vehicle 1 includes the inter-pedal communication device 14, the vehicle 1 and the portable terminal 2 can communicate with each other. For example, the position information and behavior information (terminal holder information) of the terminal holder transmitted to the inter-vehicle communication device 24 in the portable terminal 2 are transmitted to the vehicles 1 around the portable terminal 2 by communication.

Hereinafter, the configuration of the vehicle 1 will be described.
As shown in FIG. 5, the vehicle 1 includes a GPS (vehicle position detection means) 11, an HMI (Human Machine Interface, information provision execution means) 12, a vehicle state detector 13, and a distance between pedestrians connected to an antenna 14a. A communication device (information communication means, first information communication means) 14, a risk determination ECU 150 having an overall risk determination unit 150 a and a situation risk determination unit 160, and various databases that can be read by the ECU 150. . The database includes a typical accident pattern database (DB) 10, a typical motion pattern database (DB) 120, a map information database (DB) 130, and a location risk database (DB) 140.

  The GPS 11, the HMI 12, the vehicle state detector 13 and the inter-vehicle communication device 14 are connected to the risk determination ECU 150 and have the same configuration as the GPS 11, the HMI 12, the vehicle state detector 13 and the inter-vehicle communication device 14 of the first embodiment. is there.

  The typical motion pattern DB 120 is connected to the risk determination ECU 150 and provided in the vehicle 1. The typical motion pattern DB 120 is the same as the typical motion pattern DB 20 of the first embodiment.

  The map information DB 130 is connected to the risk determination ECU 150 and provided in the vehicle 1. The map information DB 130 is the same as the map information DB 31 of the first embodiment.

The position risk DB 140 is connected to the risk determination ECU 150 and provided in the vehicle 1. The position risk DB 140 is the same as the position risk DB 40 of the first embodiment.
That is, the vehicle 1 of the present embodiment has a configuration in which the typical motion pattern DB 120 and the position risk DB 140 connected to the risk determination ECU 150 are added to the configuration of the vehicle 1 of the first embodiment.

  The risk determination ECU 150 includes an overall risk determination unit 150a and a situation risk determination unit 160. The situation risk determination unit 160 includes a potential risk determination unit 162 and a position risk determination unit 164 having a terminal holder classification unit 162a. The ECU 150 is an electronic control unit configured as an LSI device or an embedded electronic device in which a microprocessor, a ROM, a RAM, and the like are integrated, for example.

The overall risk determination unit 150a determines the overall risk by weighting the situation risk determined by the situation risk determination unit 160. The situation risk determination unit 160 determines the situation risk based on the potential risk determined by the potential risk determination unit 162 and the position risk determined by the position risk determination unit 164. .
Hereinafter, the potential risk determination unit 162, the position risk determination unit 164, the situation risk determination unit 160, and the overall risk determination unit 150a will be described in this order.

  Based on the classification of the terminal holder obtained by the terminal holder classification unit 162a that the terminal holder classification unit 162a has, the potential risk determination unit 162 determines the potential risk that is a risk according to the behavior characteristics of the terminal holder. To do. The determination of the potential risk by the potential risk determination unit 162 is the same as the determination of the potential risk by the potential risk determination unit 62 of the first embodiment.

  The terminal holder classification unit 162a classifies the terminal holders according to their behavior characteristics based on the behavior information of the terminal holders acquired by the inter-vehicle communication and the correspondence relationship recorded in the typical motion pattern DB 120. The classification of the terminal holder by the terminal holder classifying unit 162a is the same as the classification of the terminal holder by the terminal holder classifying unit 62a of the first embodiment.

  The position risk determination unit 164 determines the position risk of the terminal holder using the map information DB 130 based on the correspondence information recorded in the position risk DB 140 and the position information of the terminal holder acquired by the inter-vehicle communication. To do. The determination of the position risk by the position risk determination unit 164 is the same as the determination of the position risk by the position risk determination unit 64 of the first embodiment.

  The situation risk determination unit 160 determines the situation risk of the terminal holder based on the potential risk determined by the potential risk determination unit 162 and the position risk determined by the position risk determination unit 164. Judgment. The determination of the situation risk by the situation risk determination unit 160 is the same as the determination of the situation risk by the situation risk determination unit 60 of the first embodiment.

The overall risk determination unit 150a determines the overall risk of the terminal holder based on the position information of the vehicle 1 and the position information of the terminal holder.
Specifically, the overall risk determination unit 150a includes the typical accident pattern DB 10, the map information DB 130, the position information of the vehicle 1 detected by the GPS 11, and the position information of the terminal holder acquired by the inter-pedal communication device 14. Terminal holding for the vehicle 1 based on the information on the situation risk of the terminal holder determined by the situation risk determination unit 160, the information on the classification of the terminal holder classified by the terminal holder classification unit 162a, and the like The overall risk level, which is the risk level of the worker, is determined.

For example, when the terminal holder is classified as a bicycle rider and the turn signal switch of the vehicle state detector 13 is in the ON state, the comprehensive risk determination unit 150a is traveling straight from the rear of the vehicle 1. If it is recorded in the map information DB 130 that a roadside tree is planted or poorly visible between the vehicle 1 and the bicycle rider, this situation matches the pattern of the typical accident pattern (II). Therefore, the overall risk is determined by weighting the terminal holder so as to increase the situation risk.
The determination of the total risk by the total risk determination unit 150a is the same as the determination of the total risk by the total risk determination unit 15a of the first embodiment.

That is, it can be said that the risk determination ECU 150 of the present embodiment is configured by adding the situation risk determination unit 60 in the mobile terminal 2 of the first embodiment to the risk determination ECU 15 of the first embodiment.
Other configurations are the same as those of the first embodiment.

[Action / Effect]
The vehicle risk determination device, the vehicle risk determination system, and the vehicle risk notification device using these according to the second embodiment of the present invention are configured as described above. For this reason, in the vehicle risk determination system, the overall risk determination flow as shown in FIG. 2 is periodically performed as in the first embodiment.
However, the present embodiment is different in that all steps S1 to S90 shown in FIG.

  Further, in the vehicle danger notification device, the overall risk of the terminal holder is notified to the driver of the vehicle 1 by the flow shown in FIG. 3 as in the first embodiment. Similarly, in the flow shown in FIG. 4, the terminal holder is notified of the total risk of the holder.

Therefore, according to the vehicle risk determination system and the vehicle risk determination device of the present embodiment, when there is no vehicle around the mobile terminal 2, the terminal holder is classified and the potential risk is determined. However, since the vehicle 1 includes the situation risk determination unit 160 and the terminal holder classification unit 162a, the mobile terminal 2 can have a simple configuration, and the vehicle risk determination system according to the first embodiment. Since it also depends on the device configuration on the vehicle 1 side, it is easy to spread the vehicle risk determination system.
Other effects are the same as those of the first embodiment.

[Others]
Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.
In the above-described embodiment, if all the terminal holders capable of communication in the vicinity of the vehicle are equal to or less than the predetermined number of persons, the information on the total risk regarding the terminal holders of all the predetermined number of persons or less is notified to the vehicle driver. Although what is provided is shown, the provision of information related to the overall risk level of the terminal holder may be further limited, and the overall risk level of only the terminal holder that is greater than the predetermined risk level may be notified. The predetermined risk level here is set in advance as a risk level corresponding to the total risk level of the safe terminal holder.

  Moreover, although what showed the position information of a terminal holder by GPS was shown, in addition to or instead of this, the communication infrastructure installed on the road and the portable terminal were equipped to communicate with this communication infrastructure. And a communication device, and the information of the terminal holder may be detected based on the position information transmitted from the communication infrastructure.

  In addition, although the typical accident pattern DB is shown mounted on the vehicle 1, the present invention is not limited to this as long as it can be read from the vehicle. For example, the typical accident pattern DB may be read using telematics or the Internet line. Similarly, as for the typical motion pattern DB, the map information DB, and the position risk DB, the recorded location is not limited to the vehicle or the portable terminal as long as it can be read from the vehicle or the portable terminal.

  The situation risk may be determined based on at least the potential risk, and the position risk may not be used for this determination. In this case, the configuration of the vehicle or the mobile terminal can be simplified.

  In addition, the terminal holding vehicle classification unit may classify and classify elderly people and “while walking people”, and determine the potential risk for each of elderly people and “while walking people”. In this case, the situation risk level and the overall risk level of each of the elderly and the “pedestrians” classified and distinguished are determined, and a more adaptive risk level can be determined.

  The vehicle travel control device of the present invention can be applied not only to large or medium-sized automobiles such as trucks or buses but also to small automobiles such as passenger cars.

1 Vehicle 2 Mobile terminal 10 Typical accident pattern DB
11 GPS (vehicle position detection means)
12 HMI (Information provision execution means)
13 vehicle state detector 14 inter-vehicle communication device (information communication means, first information communication means)
15 Risk assessment ECU
15a Total risk determination unit 21 GPS (terminal position detection means)
22 Information provision execution part 23 Behavior detector (behavior detection means)
24 inter-vehicle communication device (second information communication means)
20,120 Typical motion pattern DB
30, 31, 130 Map information DB
40,140 Location risk DB
60,160 Situation risk determination unit (Situation risk determination means)
62,162 Potential risk determination unit (potential risk determination means)
62a, 162a Terminal holder classification unit (terminal holder classification means)
64,164 Position risk determination unit (position risk determination means)

Claims (10)

Vehicle position detection means mounted on the vehicle for detecting the position of the vehicle;
Terminal position detection means that is installed in a portable terminal and detects the position of the portable terminal held by a terminal holder who is a pedestrian as the position of the terminal holder;
Behavior detecting means for detecting the movement of the mobile terminal as the behavior of the terminal holder;
A first information communication means mounted on the vehicle and communicating with the surrounding mobile terminal;
A second information communication means equipped in the portable terminal for communicating with the surrounding vehicle;
Terminal holder classification means for classifying the terminal holder according to behavior characteristics based on the behavior of the terminal holder detected by the behavior detection means;
A potential risk determination unit that determines a potential risk level that is a risk level according to the behavior characteristic of the terminal holder based on the classification of the terminal holder classified by the terminal holder classification unit; A situation risk determination means for determining a situation risk that is a risk according to the situation of the terminal holder based on at least the potential risk of the terminal holder determined by the potential risk determination means;
A typical accident pattern database in which typical accident patterns of pedestrians and vehicles are recorded;
Based on the position of the vehicle detected by the vehicle position detection means, the position of the terminal holder detected by the terminal position detection means, and the accident pattern recorded in the typical accident pattern database, Characterized in that it comprises a comprehensive risk determination means that weights the situation risk determined by the situation risk determination means and determines a comprehensive risk that is a risk to the vehicle of the terminal holder. Risk assessment system. A position risk database that records the correspondence between the position of the pedestrian and the position risk that is the risk of the position;
The situation risk determination means includes:
A position risk that is a risk corresponding to the position of the terminal holder based on at least the position of the terminal holder detected by the terminal position detection means and the correspondence relationship recorded in the position risk database. A terminal risk determination unit that determines the position risk of the terminal holder determined by the position risk determination unit and the potential risk of the terminal holder determined by the potential risk determination unit; The vehicle risk level determination system according to claim 1, wherein the status risk level is determined based on the following. A map information database in which map information is recorded;
The position risk determination means determines the position risk using map information recorded in the map information database,
The vehicle risk determination system according to claim 2, wherein the situation risk determination means determines the situation risk using map information recorded in the map information database. The vehicle has the typical accident pattern database and the comprehensive risk determination means,
The portable terminal has the behavior detection means, the terminal holder classification means, and the situation risk determination means,
The position information of the terminal holder detected by the terminal position detection means and the situation risk information of the terminal holder determined by the situation risk determination means are transmitted by the second information communication means, The risk determination system for a vehicle according to any one of claims 1 to 3, wherein the system is obtained by first information communication means. The vehicle has the terminal holder classification means, the situation risk determination means, the typical accident pattern database, and the comprehensive risk determination means,
The portable terminal has the behavior detection means,
The position information of the terminal holder detected by the terminal position detection means and the behavior information of the terminal holder detected by the behavior detection means are transmitted by the second information communication means, and the first information communication The vehicle risk level determination system according to any one of claims 1 to 3, wherein the vehicle risk level determination system is obtained by means. Vehicle position detection means for detecting the position of the vehicle;
Comprising information communication means for communicating with a portable terminal held by a terminal holder around the vehicle,
The information communication means acquires the position information of the portable terminal as the position information of the terminal holder, acquires the movement information of the portable terminal as the behavior information of the terminal holder,
Terminal holder classification means for classifying the terminal holder according to behavior characteristics based on the behavior information of the terminal holder acquired by the information communication means;
There is a potential risk determination means for determining a potential risk that is a risk corresponding to the behavior characteristic of the terminal holder based on at least the classification of the terminal holder classified by the terminal holder classification means. Then, based on the potential risk of the terminal holder determined by at least the potential risk determination means, a situation risk determination for determining a situation risk that is a risk according to the situation of the terminal holder Means,
A typical accident pattern database in which typical accident patterns of pedestrians and vehicles are recorded;
Based on the position of the vehicle detected by the vehicle position detection means, the position information of the terminal holder acquired by the information communication means, and the accident pattern recorded in the typical accident pattern database, Characterized in that it comprises a comprehensive risk determination means that weights the situation risk determined by the situation risk determination means and determines a comprehensive risk that is a risk to the vehicle of the terminal holder. Risk assessment device. A position risk database that records the correspondence between the position of the pedestrian and the position risk that is the risk of the position;
The situation risk determination means includes:
A position risk that is a risk corresponding to the position of the terminal holder based on at least the position information of the terminal holder acquired by the information communication means and the correspondence relationship recorded in the position risk database. A terminal risk determination unit that determines the position risk of the terminal holder determined by the position risk determination unit and the potential risk of the terminal holder determined by the potential risk determination unit; The apparatus according to claim 6, wherein the situation risk is determined based on the following. A map information database in which map information is recorded;
The position risk determination means determines the position risk based on map information recorded in the map information database,
The vehicle risk determination apparatus according to claim 7, wherein the situation risk determination means determines the situation risk based on map information recorded in the map information database. The overall risk of the terminal holder determined in the vehicle risk determination system according to any one of claims 1 to 5 or the vehicle risk determination device according to any one of claims 6 to 8. A vehicle danger notification device comprising information provision execution means for providing information on the total risk to a driver of the vehicle according to the degree. 10. The vehicle danger notification device according to claim 9, wherein the information provision execution unit provides information on a total risk level for the terminal holders of a predetermined number or less.

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