JP2012032974A - Mobile communication device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mobile communication device that gives a predetermined alert about a possible contact of a mobile body with another mobile body based on information about a driver or driver information.SOLUTION: A mobile communication device is provided on a mobile body and includes a driver information acquisition unit that acquires driver information for the mobile body, a vehicle information acquisition unit that acquires vehicle information for the mobile body, a communication unit that receives information including at least vehicle information for another mobile body, a control unit that determines whether or not there is a risk of a contact between the mobile body and the other mobile body based on at least the vehicle information for the mobile body and the vehicle information for the other mobile body, and an alert unit. The control unit controls the alert unit to give a predetermined alert based on the driver information of the mobile body when there is a risk of a contact between the mobile body and the other mobile body.

Description

  The present invention relates to a mobile communication device mounted on a mobile body, and more particularly to a mobile communication device that performs predetermined notification when there is a risk of contact between a mobile body and another mobile body.

  In recent years, intelligent transport systems (Intelligent Transport Systems, hereinafter referred to as “ITS”) aiming to solve road traffic problems such as traffic accidents and traffic jams by networking people, roads, and vehicles with information using information communication technology. Is being researched and developed. The form of wireless communication for automobiles in the field dealing with the safe driving support system in ITS can be broadly divided into road-to-vehicle communication and vehicle-to-vehicle communication. In road-to-vehicle communication, roadside machines and vehicles communicate information, whereas in vehicle-to-vehicle communication, vehicles directly communicate information.

  It is considered that the information transmitted from the vehicle includes vehicle information indicating a driving state of the vehicle such as a current position of the vehicle, a traveling speed of the vehicle, a traveling direction of the vehicle, and information on a driver driving the vehicle. Therefore, other vehicles that have received the vehicle information can know information regarding the driving state of the vehicle and the driver. Patent Document 1 discloses a mobile communication device that notifies the presence of another vehicle in order to avoid contact when there is a risk of contact between the own vehicle and another vehicle based on vehicle information.

  The mobile communication device mounted on a mobile object disclosed in Patent Literature 1 is estimated to receive a receiving means for receiving an incoming information signal and to reach the mobile object almost simultaneously with a predetermined predicted arrival point. Detecting means for detecting the presence of another moving body based on an incoming information signal, and notifying means for notifying the presence of another moving body detected by the detecting means. Thereby, the driver of the mobile body can specify the presence of another mobile body to which attention should be paid before actually reaching the predicted arrival point, and the driving load on the mobile body can be reduced.

JP 2000-348299 A

  The mobile communication device disclosed in Patent Document 1 is estimated to reach the mobile object in the vicinity of the predetermined predicted arrival point almost simultaneously with the mobile object (in other words, it is estimated that there is a risk of contact). Whenever the presence of another moving body is detected based on the incoming information signal, the presence of the other moving body is notified by the notification means. However, even if it is estimated that there is a risk of contact, if both the driver of the moving body and the driver of the other moving body are good drivers, at least both are the initial drivers It is assumed that action to avoid contact is taken compared to. Therefore, for example, when there is a risk of contact, if the notification is always adapted to the original driver (frequent / detailed notification), it will be an excessive notification for a good driver. In addition, if the notification is made in conformity with the excellent driver (simple notification with less frequency), the notification is insufficient for the original driver. In addition, when the driver of another moving body that has a risk of contact is the original driver, even if the driver of the moving body (own vehicle) is a good driver, compared to the case of good drivers Since there is a high possibility of contact, it is desirable that the notification timing and the notification content be different.

  In view of the above-described problems, the present invention provides a mobile communication device that performs predetermined notification indicating that there is a risk of contact between a mobile body and another mobile body based on information about the driver (driver information). The purpose is to provide.

  In order to achieve the above object, a mobile communication device of the present invention is provided in a mobile body, a driver information acquisition unit that acquires driver information of the mobile body, and vehicle information that acquires vehicle information of the mobile body. The mobile unit and the other movement based on an acquisition unit, a communication unit that receives information including vehicle information of at least another mobile unit, and at least the vehicle information of the mobile unit and the vehicle information of the other mobile unit A mobile communication device comprising: a control unit that determines whether there is a risk of contact with a body; and a notification unit, wherein the control unit is in contact with the mobile body and the other mobile body When there is a risk of performing this, the notification unit is controlled based on driver information of the moving body to perform predetermined notification.

    According to this configuration, when there is a risk that the moving body and another moving body come into contact with each other, the control unit controls the notifying unit based on the driver information of the moving body to perform a predetermined notification. Different notifications can be made according to the driver information.

  In order to achieve the above object, a mobile communication device of the present invention is provided in a mobile body, a vehicle information acquisition unit that acquires vehicle information of the mobile body, driver information of other mobile bodies, and other mobile bodies There is a risk that the moving body and the other moving body come into contact with each other based on the communication unit that receives the information including the vehicle information and at least the vehicle information of the moving body and the vehicle information of the other moving body. A control unit for determining whether the mobile unit is in contact with the other mobile unit when the mobile unit is in danger of contact with the other mobile unit. The notification unit is controlled based on driver information of the moving body to perform predetermined notification.

  According to this configuration, when there is a risk that the moving body and another moving body come into contact with each other, the control unit controls the notification unit based on the driver information of the other moving body to perform a predetermined notification. Different notifications can be performed according to the driver information of the moving body.

  In order to achieve the above object, a mobile communication device of the present invention is provided in a mobile body, a driver information acquisition unit that acquires driver information of the mobile body, and vehicle information that acquires vehicle information of the mobile body. Based on an acquisition unit, a communication unit that receives information including driver information of another moving body and vehicle information of another moving body, and at least vehicle information of the moving body and vehicle information of the other moving body A mobile communication device comprising: a control unit that determines whether there is a risk of contact between the mobile body and the other mobile body; and a notification unit, wherein the control unit includes: When there is a risk of contact with the other moving body, the notification unit is controlled based on driver information of the moving body and driver information of the other moving body to perform a predetermined notification. Features.

  According to this configuration, the control unit controls the notification unit based on the driver of the moving body and the driver of the other moving body when there is a risk that the moving body and another moving body come into contact with each other. Since the notification is performed, different notifications can be performed according to the relationship between the driver of the moving body and the driver of another moving body.

  In the mobile communication device having the above-described configuration, the control unit may determine whether the current position of the mobile body is different from that of the mobile body based on driver information of the mobile body and / or driver information of the other mobile body. It is determined whether or not it is within a predetermined range from a contact point that is expected to come into contact with the moving body, and if the current position of the mobile body is not within the predetermined range from the contact point, the notification unit performs notification. Desirably not.

  According to this configuration, the current position of the moving body is predetermined from the contact point where the moving body and the other moving body are predicted to come into contact based on the driver information of the moving body and / or the driver information of another moving body. It is determined whether it is within the range. As a result, when it is determined that it is not within the predetermined range from the contact point, no notification is given. Thereby, the timing which alert | reports with respect to the driver | operator of a moving body can be changed.

  In the mobile communication device having the above-described configuration, the control unit determines the content of notification based on driver information of the mobile unit and / or driver information of the other mobile unit, and controls the notification unit. It is desirable to perform notification with the content of the notification determined in the above.

  According to this configuration, since the content of the notification is determined based on the driver information of the mobile body and / or the driver information of other mobile bodies, the risk level is high when the risk level is high (such as beginner driving). Compared with the case where it is low (such as excellent drivers), it is possible to strongly urge the possibility of contact with the driver.

  In the mobile communication device having the above configuration, the vehicle information includes at least one of information indicating a current position, information indicating a traveling direction, information indicating a traveling speed, and information indicating a display state of a direction indicator. It is desirable.

  In the mobile communication device having the above configuration, the driver information includes at least one of information indicating a driver's date of birth, information indicating a date and time of obtaining a driver's license, and information indicating a good driver. It is desirable to include.

  According to the present invention, the control unit is based on information on the driver of the moving body and / or information on the driver of the other moving body (driver information) when there is a risk of contact between the moving body and another moving body. Since the notification unit is controlled to perform predetermined notification, different notifications can be performed according to the driver information.

These are block diagrams which show the structure of the navigation apparatus of this invention. These are 1st flowcharts which show the flow of the process which the control part of the navigation apparatus of this invention performs. These are 2nd flowcharts which show the flow of the process which the control part of the navigation apparatus of this invention performs. These are 3rd flowcharts which show the flow of the process which the control part of the navigation apparatus of this invention performs.

  Embodiments of the present invention will be described below with reference to the drawings. However, the embodiment described below exemplifies a navigation device in order to embody the technical idea of the present invention, and is not intended to identify the present invention as this navigation device, and claims The present invention can be equally applied to the mobile communication devices of other embodiments included in the scope. For example, it may be a mobile communication device that does not have a navigation function, or may be a mobile communication device that can be removed from a vehicle and carried. FIG. 1 is a block diagram showing the configuration of the navigation apparatus of the present invention. The navigation device 20 includes a control unit 1, a display unit 2, an operation unit 3, a map information storage unit 4, a driver information acquisition unit 5, a driver information storage unit 6, a vehicle information acquisition unit 7, and a battery. 8, a communication unit 9, and a notification unit 10. As shown in FIG. 1, the control unit 1 and each unit (such as the display unit 2) are connected by, for example, a bus, and the control unit 1 acquires the driver information acquired by the driver information acquisition unit 5. It is possible.

  The control unit 1 is a control unit that comprehensively controls the entire navigation device 20. The control unit 1 includes a contact risk determination unit 1a and a driver risk determination unit 1b, and includes a CPU, a ROM, a RAM, and the like (not shown). Various programs describing control and operation procedures are stored in the ROM. The CPU executes various programs stored in the ROM. The RAM temporarily stores data obtained during various processes and data obtained as a result of various processes. These CPU, RAM, ROM and the like are connected via a bus. Note that the CPU, ROM, and RAM may be partially or fully integrated on one chip.

  The display unit 2 is a display means for displaying a map screen (a map image including a route to a destination, a current position of the vehicle) and a menu screen.

  The operation unit 3 is an input operation means for a driver (user) to input a destination or operate a menu. As the operation unit 3, various keys and buttons may be provided on the navigation device body, or a touch panel function may be added to the display unit 2. Further, a remote controller for remotely operating the navigation device main body may be used as the operation unit 3.

  The map information storage unit 4 stores map information referred to when performing route search or guidance to the destination. As the map information storage unit 4, a NAND flash, an SD memory card, or the like can be suitably used. The map information storage unit 4 may be built in the navigation device 20 or may be detachable from the navigation device 20.

  The driver information acquisition unit 5 acquires driver information (information related to the driver of the moving body) of the moving body on which the navigation device 20 is mounted. Driver information includes information indicating the date of birth of the driver, information indicating the date and time of acquisition of the driver's license, and information indicating a good driver (for example, the color of the driver's license is gold, excellent for a driver's license) And at least one of them is included. Based on the driver information, the control unit 1 calculates whether the driver falls into one of the driver categories of a primitive driver, a good driver, an elderly driver, and a general driver.

  For example, the control unit 1 determines whether a predetermined period has elapsed since the date of acquisition of the driver's license, whether the driver's age is equal to or higher than a predetermined age, whether the driver is a good driver (the driver's license Based on whether the color is gold or whether the driver's license has a description of “excellent”, it is calculated which driver category the driver falls into. In addition, you may change or delete the definition at the time of calculating a driver | operator classification and a driver | operator classification, or you may add another division | segmentation and definition. For example, if the driver's violation history can be obtained, add the “Violation driver” category to the driver category, and when calculating the driver category, “Violation within the past five years (one minor violation It is conceivable to add a definition of “whether or not there is only)”.

  As a method of acquiring the driver information, a method of reading a driver's license with the reading unit 5a provided in the driver information acquiring unit 5, or a driver (user) operating the operation unit 3 to operate the driver's own driver's license. A method of inputting information, a method of reading driver information stored in a driver information storage unit 6 to be described later when the driver operates the operation unit 3, and the like are conceivable. The reading unit 5a may be an IC card reader for reading an IC card driving license introduced nationwide, or may be a scanner such as a scanner that scans character information listed on the driving license. . Further, an IC card reader and a scanner may be provided. The driver information acquisition unit 5 has an OCR (Optical Character Reader) function, and driver information is read from image data such as JPG of a driver's license acquired by a scanner.

  The control unit 1 causes the driver information storage unit 6 to store the driver information acquired by the driver information acquisition unit 5 and / or the driver classification of the driver calculated based on the driver information. For simplification of explanation, the driver information acquisition unit 5 and the driver information storage unit 6 are provided as separate configurations, but the driver information acquisition unit 5 may be provided as a configuration including the driver information storage unit 6. Good.

  The vehicle information acquisition unit 7 acquires vehicle information detected by a detection unit such as a current position detection unit 7a, a speed detection unit 7b, and a direction indicator detection unit 7c. For simplification of description, the vehicle information acquisition unit 7 is provided as a configuration including a current position detection unit 7a, a speed detection unit 7b, and a direction indicator display state detection unit 7c, but these detection units are provided as separate configurations. In addition, the configuration may include a detection unit other than this, or may be provided as a separate configuration. For example, when the navigation device 20 has a function of searching for a route to the destination, a planned travel route detection unit that detects the planned travel route may be provided.

  The current position detection unit 7a detects the current position and traveling direction of the host vehicle, and includes a GPS receiver, self-contained navigation means, a position calculation CPU, and the like. The self-contained navigation means includes a steering angle sensor, an acceleration sensor, a distance sensor, a direction sensor, and the like, detects the travel distance and the traveling direction of the own vehicle, and obtains the current position based on these values. The GPS receiver receives radio waves transmitted from a plurality of GPS satellites with a GPS antenna, performs a three-dimensional positioning process or a two-dimensional positioning process, and calculates the absolute position and direction of the own vehicle. Here, the direction is calculated based on the current vehicle position and the immediately preceding vehicle position.

  The speed detector 7b detects the moving speed of the host vehicle on which the navigation device 20 is mounted. The moving speed may be calculated from the output of the vehicle speed sensor or the acceleration sensor, or may be calculated from the difference between the travel distance between the GPS histories and the GPS reception time.

  The direction indicator detector 7c detects the display state of the direction indicator of the host vehicle (for example, the right turn is being displayed). The direction indicator display state is not only the actual direction indicator display state but also information indicating that the driver has operated the direction indicator (winker) of the moving body (right or left turn display operation). It may be.

  The battery 8 is a power supply means when the navigation device 20 is portable, and a secondary battery such as a lithium ion battery or a nickel metal hydride battery can be suitably used. Of course, as the battery 8, a primary battery such as an alkaline manganese dry battery or a manganese dry battery may be used, or a fuel cell may be used.

  The communication unit 9 receives information transmitted from other communication devices and a transmission unit (not shown) that transmits information to other communication devices that can communicate with the navigation device 20 (hereinafter referred to as “other communication devices”). And a receiving unit (not shown). As other communication devices, for example, in-vehicle devices such as navigation devices mounted on other vehicles (moving bodies), roadside devices (for example, not vehicle-to-vehicle communication, vehicle information is transmitted to roadside devices, and roadside devices receive them. A mobile communication terminal such as a mobile phone possessed by a pedestrian or the like.

  The alerting | reporting part 10 alert | reports various information with respect to the driver | operator of the own vehicle. The notification method is not particularly limited as long as the driver can understand the contents. For example, the notification method is performed by outputting a predetermined sound via a speaker (not shown). Further, it may be performed by displaying predetermined characters or images on the display unit 2 or may be performed simultaneously with sound and display. For simplification of explanation, the notification unit 10 and the display unit 2 are provided as separate components. However, when the notification method includes display of predetermined characters or images on the display unit 2, the notification unit 10 displays the information. You may provide as a structure containing the part 2. FIG.

[First embodiment]
A first embodiment of the navigation device 20 of the present invention will be described with reference to FIG. FIG. 2 is a first flowchart showing a flow of processing executed by the control unit 1 of the navigation device 20 of the present invention.

  In step S01, the control unit 1 acquires the driver information of the own vehicle (information about the driver of the host vehicle) acquired by the driver information acquiring unit 5. Next, in step S02, the control unit 1 acquires the vehicle information of the host vehicle acquired by the vehicle information acquisition unit 7. Next, in step S <b> 03, the control unit 1 acquires the driver information of the other vehicle (the other mobile body on which the other communication device is mounted) and the vehicle information of the other vehicle received by the communication unit 9 from the other communication device. The control part 1 which acquired the driver information and vehicle information of the own vehicle and other vehicles calculates the driver classification of the driver of the own vehicle and other vehicles in step S04. For example, a driver who has an excellent driver's license (a driver's license with a color of gold and described as excellent) shall be an excellent driver, and the specified period (5 years) has not elapsed since the date of obtaining the driver's license. The driver is a novice driver, the driver who has passed a predetermined period from the date of birth (70 years old or older) is an elderly driver, and the driver who does not correspond to any driver is a general driver. In addition, it may be applicable to two or more driver categories. For example, it corresponds to a senior driver who has passed a predetermined period from the date of birth and a good driver who has a good driver's license. This is the case. In such a case, priorities (for example, the order of beginner driver, elderly driver, general driver, and excellent driver) are set in advance in the driver category, and the driving with the highest priority among the corresponding driver categories. It is good to be a person division.

  Next, in step S05, the contact risk determination unit 1a of the control unit 1 determines whether there is a risk of contact between the host vehicle and the other vehicle based on the vehicle information of the host vehicle and the vehicle information of the other vehicle. . For example, if there is a point where the planned traveling route of the vehicle and the planned traveling route of another vehicle intersect, the time required for the host vehicle to reach the intersection and the time required for the other vehicle to arrive are calculated. If the time difference is shorter than the predetermined time, it is determined that there is a risk of contact. If there is no risk of contact (N in step S05), the process returns to step S01. If there is a risk of contact (Y in step S05), the process proceeds to step S06. The planned travel route may be a route searched by the route search function of the navigation device 20, or may be determined based on the display state of the direction indicator detected by the direction indicator detection unit 7c. Good (for example, if a right turn is being displayed, it is determined that the vehicle is traveling on a right turn at the next intersection with respect to the current position and the traveling direction). Further, for example, a roadside device may be installed for each lane, and the communication unit 9 may receive information including lane information (right turn-only lane, left-turn lane, etc.) from the roadside device to determine the planned travel route. (For example, if the vehicle is traveling on a right-turn exclusive lane, it is determined that the vehicle will travel on a right-turn route at the next intersection).

  In step S06, the driver risk determination unit 1b of the control unit 1 is derived from the relationship between the driver of the own vehicle and the driver of the other vehicle based on at least the driver category of the own vehicle and the driver category of the other vehicle. Determine the risk. The risk derived from the relationship between the driver of the own vehicle and the driver of the other vehicle is whether the driver of the own vehicle and the other vehicle, regardless of whether or not there is a risk of contact between the own vehicle and the other vehicle. This indicates whether the relationship with the driver is at a high risk of contact. For example, the driving risk determination unit 1b refers to a table as shown in Table 1 to determine the risk derived from the relationship between the driver of the own vehicle and the driver of the other vehicle. According to Table 1, when both the driver of the own vehicle and the driver of the other vehicle are good drivers, the risk level is determined to be 1 and the risk level is low. Is 4 and the risk is determined to be high.

  In step S07, the control unit 1 determines that the current position of the host vehicle is a contact point where the host vehicle is predicted to come into contact with the other vehicle (in the case of step S05, the host vehicle's planned travel route and the other vehicle's planned travel route It is determined whether or not it is within a predetermined range from the point at which and intersect. Whether or not it is within a predetermined range is determined based on the predicted time required for the host vehicle to reach the contact point, the distance from the current position of the host vehicle to the contact point, and the like. For example, based on the estimated time required for the vehicle to reach the contact point, when the risk level is 1 ((1) in Table 1), the risk level is 2 seconds or less (Table 1). 1 (2)) within 4 seconds, when the risk level is 3 (Table 1 (3)) within 6 seconds, when the risk level is 4 (Table 4 (4)) within 8 seconds If it is, it is determined that the current position of the own vehicle is within a predetermined range from the contact point where the own vehicle and the other vehicle are predicted to contact. If it is determined that it is not within the predetermined range (N in step S07), the process returns to step S01. When it determines with it being in the predetermined range (Y of step S07), it progresses to step S08, and the control part 1 controls the alerting | reporting part 10, and there exists a possibility that the said mobile body and the said other mobile body will contact. Predetermined notification indicating that there is.

  The notification is performed by display on the display screen of the display unit 2, voice output through a speaker, or the like. The content of the notification is not particularly limited as long as it includes content that can notify the driver of the host vehicle that there is a possibility of contact with another vehicle. For example, the notification “There is a possibility of coming into contact with another vehicle soon” is performed.

  According to this embodiment, the predetermined range is determined based on the degree of risk derived from the relationship between the driver of the own vehicle and the driver of the other vehicle. And based on the degree of risk derived from the relationship between the driver of the own vehicle and the driver of the other vehicle, the current position of the own vehicle is within a predetermined range from the contact point where the own vehicle and the other vehicle are predicted to contact each other. It is determined whether or not there is. As a result, when it is determined that it is not within a predetermined range from the contact point, no notification is given. Thereby, the timing which alert | reports with respect to the driver | operator of the own vehicle can be changed.

[Second Embodiment]
A second embodiment of the navigation device 20 of the present invention will be described with reference to FIG. FIG. 3 is a second flowchart showing a flow of processing executed by the control unit 1 of the navigation device 20. In addition, since step S11-step S16 in this embodiment are the same as that of step S01-step S06 in 1st Embodiment, description is abbreviate | omitted.

  In step S17, the control unit 1 determines the content of the notification based on the risk derived from the relationship between the driver of the own vehicle and the driver of the other vehicle. In step S18, the control unit 1 controls the notification unit 10. Notification is performed with the contents determined in step S17. For example, when the degree of danger is high, information on the driver of the own vehicle and the driver of another vehicle that may come into contact is included in the content of the notification. In other words, if the danger level is 1, “notice that there is a possibility of contact with another vehicle at a point 100 meters ahead” is reported. "When there is a risk level of 3," the possibility of contact with other vehicles driven by the original driver or the elderly driver at 100 meters ahead is high. When the danger level is 4, it is notified that “the possibility of contact between the original drivers or the elderly drivers at a point 100 meters ahead is high”. Note that the content of the notification is not particularly limited as long as it includes content that can notify the driver of the host vehicle that there is a possibility of contact with another vehicle. For example, when the danger level is 1, the notification may not be performed.

  Note that the notification content may be determined according to the driver classification of the driver of the own vehicle or the other vehicle, instead of simply providing the notification content corresponding to the risk level (danger level). That is, when the driver classification of the own vehicle is a beginner driver and the driver classification of the other vehicle is a general driver, the danger level is the danger level 3 as in the above notification content example. It is highly likely that the vehicle will come into contact with another vehicle at a point 100 meters ahead. That is, the notification content may be changed even when the driver of the own vehicle is a primitive driver or an elderly driver and when the other vehicle is a primitive driver or an elderly driver even at the same risk level (danger level). .

  According to the present embodiment, since the content of the notification is determined based on the risk derived from the relationship between the driver of the own vehicle and the driver of the other vehicle, the risk is low when the risk is high. Compared to this, it is possible to strongly remind that there is a possibility of contact with the driver.

[Third embodiment]
A third embodiment of the navigation device 20 of the present invention will be described with reference to FIG. FIG. 4 is a third flowchart showing the flow of processing executed by the control unit 1 of the navigation device 20. In addition, since step S21-step S25 in this embodiment are the same as that of step S01-step S05 in 1st Embodiment, description is abbreviate | omitted.

  In step S26, the driver risk determination unit 1b of the control unit 1 is derived from the relationship between the driver of the own vehicle and the driver of the other vehicle based on at least the driver information of the own vehicle and the driver information of the other vehicle. Determine the risk. The driving risk determination unit determines a risk derived from the relationship between the driver of the own vehicle and the driver of the other vehicle with reference to a table as shown in Table 2. According to Table 2, when the driver of the own vehicle is an excellent driver, the danger level is determined to be 1 regardless of the driving category of the driver of the other vehicle, and the driver of the own vehicle is the original driver The danger level is determined to be 4 regardless of the driving category of the driver of the other vehicle. When the driver of the own vehicle is a general driver, the danger level is determined to be 2 or 3 depending on the driving classification of the driver of the other vehicle.

  In step S27, the control unit 1 determines whether or not the current position of the host vehicle is within a predetermined range from a contact point where the host vehicle and another vehicle are predicted to contact each other. Whether or not it is within a predetermined range is determined based on the predicted time required for the host vehicle to reach the contact point, the distance from the current position of the host vehicle to the contact point, and the like. For example, when the risk level is 1 ((1) in Table 2) based on the distance from the current position of the vehicle to the contact point where the vehicle and the other vehicle are predicted to come into contact, the risk is within 50 meters. When the level is 2 ((2) in Table 2), within 75 meters, when the risk level is 3 ((3) in Table 2), within 100 meters, and when the risk level is 4 (( In 4)), when the distance is within 125 meters, it is determined that the current position of the own vehicle is within a predetermined range from the contact point where the own vehicle is predicted to be in contact with the other vehicle. If it is determined that it is not within the predetermined range (N in step S27), the process returns to step S21. If it is determined that it is within the predetermined range (Y in step S27), the process proceeds to step S28.

  In step S28, the control unit 1 determines the content of the notification based on the degree of risk derived from the relationship between the driver of the own vehicle and the driver of the other vehicle. In step S29, the control unit 1 controls the notification unit 10. Notification is performed with the contents determined in step S28.

  For example, when the danger level is 1, if the distance to the contact point is within 50 m, the warning message “There is a possibility of contacting with another vehicle at a point 50 meters ahead.” In the case where the distance to the contact point is within 75 m, it is notified that “It is highly likely that the vehicle will come into contact with another vehicle at a point 75 meters ahead.” If the danger level is 3, the contact point When the distance to the vehicle is within 100m, it is reported that there is a high possibility that it will come into contact with another vehicle at a point 100 meters ahead, and the danger level is 4 (if the driver of the other vehicle is a beginner) In the case where the distance to the contact point is within 125 m, it is notified that “the possibility that the novice driver will contact another vehicle driven by the 125 meter point ahead is high”.

  According to this embodiment, the same effects as those of the first embodiment and the second embodiment can be obtained. In the flowchart of FIG. 4, in step S <b> 27, the control unit 1 determines whether or not the current position of the host vehicle is within a predetermined range from a contact point where the host vehicle and the other vehicle are predicted to contact each other. If it is determined that it is within the range (Y in step S27), the process proceeds to step S28, and the content of the notification is determined based on the risk derived from the relationship between the driver of the own vehicle and the driver of the other vehicle. However, not limited to this, the content of the notification is first determined based on the risk derived from the relationship between the driver of the own vehicle and the driver of the other vehicle, and then the current position of the own vehicle is The notification unit 10 may be controlled to notify the notification content when the vehicle enters a predetermined range from a contact point predicted to come into contact with another vehicle.

  In the first to third embodiments, the degree of risk derived from the relationship between the driver of the own vehicle and the driver of the other vehicle is determined by treating the beginner driver and the elderly driver in the same manner. , It is good also as a separate handling with a beginner driver and an elderly driver.

2 to 4, in the processes of S01 to S03, S11 to S13, and S21 to S23, the control unit 1 controls the driver information of the own vehicle, the vehicle information of the own vehicle, and the driver of the other vehicle. Information and vehicle information of other vehicles are acquired, but the acquisition timing is not related to the position illustrated in the flowchart. For example, the information (vehicle information of the own vehicle, etc.) may be obtained periodically, and the information (vehicle information of other vehicles, etc.) is irregularly (based on the transmission timing of other devices). May be acquired). Further, for example, in the case of vehicle information of the own vehicle, vehicle information is not acquired only at step S02 or step S12, but vehicle information is acquired periodically and acquired at step S02. Of the vehicle information, the latest vehicle information may be used as the vehicle information.
[Fourth embodiment]
A fourth embodiment of the navigation device 20 of the present invention will be described. In the said 1st Embodiment-3rd Embodiment, although the risk degree derived | led-out from the relationship between the driver | operator of the own vehicle and the driver | operator of another vehicle was determined with reference to the table shown in Table 1 or Table 2, it is 4th. In the embodiment, the notification content and the notification timing (predetermined range) are determined without holding the table shown in Table 1 or Table 2.

  A description will be given with reference to the flowchart of FIG. First, step S21 and step S22 are the same as those in the third embodiment, and a description thereof will be omitted. Next, in step S <b> 23, in the present embodiment, the control unit 1 acquires the vehicle information of the other vehicle received by the communication unit 9. And the control part 1 calculates the driver classification of the driver | operator of the own vehicle in step S24.

  Next, in step S25, the contact risk determination unit 1a of the control unit 1 determines whether there is a risk of contact between the own vehicle and the other vehicle based on the vehicle information of the own vehicle and the vehicle information of the other vehicle. If it is determined that there is a risk of contact (Y in step S25), in step S26, the control unit 1 determines the risk based on the driver information (driver classification) of the own vehicle. That is, for example, when the driver of the own vehicle is a good driver, the danger level is determined to be 1, and when the driver of the own vehicle is an initial driver, the danger level is determined to be 4. Further, when the driver of the own vehicle is a general driver, the danger level is determined as 2.

  In step S27 to step S29, as in the third embodiment, the notification timing (predetermined range) and the notification content are determined based on the degree of risk (danger level) determined in step 26, and the notification unit 10 is controlled. To make a notification.

According to this embodiment, even if the driver information of another vehicle cannot be obtained, the risk level is determined based on the driver information of the host vehicle, and notification is made according to the determined risk level (risk level). Since the timing (predetermined range) and the content of notification are determined and notified, the timing of notification to the driver of the own vehicle can be changed based on the driver information of the own vehicle. When is high, it is possible to strongly remind that there is a possibility of contact with the driver as compared with the case where the degree of danger is low.
[Fifth Embodiment]
A fifth embodiment of the navigation device 20 of the present invention will be described. In the fifth embodiment, unlike the fourth embodiment, the driver information of the other vehicle can be acquired, but the case where the driver information of the own vehicle cannot be acquired will be described.

  A description will be given with reference to the flowchart of FIG. First, in the fifth embodiment, the driver information of the own vehicle is not acquired in step S21, and steps S22 and S23 are the same as in the third embodiment. And the control part 1 calculates a driver classification based on the driver information of the other vehicle acquired by step S23 in step S24.

  Next, in step S25, the contact risk determination unit 1a of the control unit 1 determines whether there is a risk of contact between the own vehicle and the other vehicle based on the vehicle information of the own vehicle and the vehicle information of the other vehicle. If it is determined that there is a risk of contact (Y in step S25), in step S26, the control unit 1 determines the risk based on the driver information (driver classification) of the other vehicle. That is, for example, when the driver of the other vehicle is an excellent driver, the danger level is determined as 1, and when the driver of the other vehicle is the initial driver, the danger level is determined as 4. When the driver of the other vehicle is a general driver, the danger level is determined as 2.

  In step S27 to step S29, as in the third embodiment, the notification timing (predetermined range) and the notification content are determined based on the degree of risk (danger level) determined in step 26, and the notification unit 10 is controlled. To make a notification.

  According to this embodiment, even when the driver information of the own vehicle cannot be obtained, the risk level is determined based on the driver information of the other vehicle, and the notification is made according to the determined risk level (danger level). Since the timing (predetermined range) and the notification content are determined and notified, the timing of notification to the driver of the own vehicle can be changed based on the driver information of the other vehicle, and the degree of danger When is high, it is possible to strongly remind that there is a possibility of contact with the driver as compared with the case where the degree of danger is low.

  The fourth embodiment and the fifth embodiment can be applied to the first embodiment and the second embodiment. That is, also in the first embodiment and the second embodiment, the risk level is determined based on only the driver information of the own vehicle or the driver information of the other vehicle, and the notification timing is determined based on the risk level (risk level). (Predetermined range) or notification content may be determined.

  In the above embodiment, the case where it is determined whether or not the current position is within a predetermined range based on the degree of risk and is notified within the predetermined range is exemplified. Based on the distance from the current position of the vehicle to the contact point where the current position of the vehicle is predicted to come into contact with the other vehicle, if the risk level is 1, within 50 meters, if the risk level is 2 Is predicted to be in contact with the other vehicle in the current position of the vehicle if it is within 75 meters, within 100 meters if the risk level is 3, and within 125 meters if the risk level is 4. When it is determined that it is within a predetermined range from the contact point, when the risk level is 1, it is notified only when it is within 50 meters, and when the risk level is 4, it is within 125 meters , 100 If it is within Toru, if it is within 75 meters, it may be performed each once notification when it is within 50 meters.

  INDUSTRIAL APPLICABILITY The present invention can be used for a mobile communication device that performs predetermined notification when there is a risk of contact between a mobile body and another mobile body.

DESCRIPTION OF SYMBOLS 1 ... Control part, 2 ... Display part, 3 ... Operation part, 4 ... Map information storage part, 5 ... Driver information acquisition part, 6 ... Driver information storage part, DESCRIPTION OF SYMBOLS 7 ... Vehicle information acquisition part, 8 ... Battery, 9 ... Communication part, 10 ... Notification part, 20 ... Navigation apparatus

Claims (7)

Provided in the moving body,
A driver information acquisition unit for acquiring driver information of the mobile body;
A vehicle information acquisition unit for acquiring vehicle information of the mobile body;
A communication unit that receives information including vehicle information of at least another moving body; and
A control unit for determining whether there is a risk of contact between the moving body and the other moving body based on at least the vehicle information of the moving body and the vehicle information of the other moving body;
A mobile communication device comprising a notification unit,
The control unit performs predetermined notification by controlling the notification unit based on driver information of the moving body when there is a risk that the moving body and the other moving body come into contact with each other. Mobile communication device. Provided in the moving body,
A vehicle information acquisition unit for acquiring vehicle information of the mobile body;
A communication unit for receiving information including driver information of other mobile units and vehicle information of other mobile units;
A control unit for determining whether there is a risk of contact between the moving body and the other moving body based on at least the vehicle information of the moving body and the vehicle information of the other moving body;
A mobile communication device comprising a notification unit,
The control unit performs a predetermined notification by controlling the notification unit based on driver information of the other moving body when there is a risk that the moving body and the other moving body are in contact with each other. A mobile communication device. Provided in the moving body,
A driver information acquisition unit for acquiring driver information of the mobile body;
A vehicle information acquisition unit for acquiring vehicle information of the mobile body;
A communication unit for receiving information including driver information of other mobile units and vehicle information of other mobile units;
A control unit for determining whether there is a risk of contact between the moving body and the other moving body based on at least the vehicle information of the moving body and the vehicle information of the other moving body;
A mobile communication device comprising a notification unit,
The control unit controls the notification unit based on driver information of the moving body and driver information of the other moving body when there is a risk of contact between the moving body and the other moving body. And performing a predetermined notification. The control unit is configured such that the current position of the moving body is expected to contact the moving body and another moving body based on the driver information of the moving body and / or the driver information of the other moving body. Determine whether it is within a predetermined range from the point,
4. The mobile communication device according to claim 1, wherein notification by the notification unit is not performed unless a current position of the mobile body is within a predetermined range from the contact point. 5. .   The control unit determines the content of notification based on the driver information of the moving body and / or the driver information of the other moving body, and notifies the content of the notification determined by controlling the notification unit. The mobile communication device according to any one of claims 1 to 4, wherein the mobile communication device is characterized in that:   The vehicle information includes at least one of information indicating a current position, information indicating a traveling direction, information indicating a traveling speed, and information indicating a display state of a direction indicator. Item 6. The mobile communication device according to any one of Items5.   The driver information includes at least one of information indicating a driver's date of birth, information indicating an acquisition date and time of a driver's license, and information indicating a good driver. The mobile communication device according to claim 6.

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