JP2013134700A - In-vehicle unit, notification system for vehicle, and portable terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a new technology for notifying any crew other than a driver in accordance with the state of a vehicle or the state of the outside of the vehicle.SOLUTION: The in-vehicle unit determines whether or not it is necessary to notify the crew of a vehicle on the basis of data of the behavior of a vehicle or the like, and a portable terminal 2 notifies any crew other than the driver on the basis of the determination result of determination means which has determined that it is necessary to notify the crew of the vehicle.

Description

  The present invention relates to an in-vehicle device, a vehicle notification system, and a mobile terminal.

  In Patent Document 1, attention is paid to occupants other than the driver by detecting information such as the driving situation of the vehicle (for example, approaching a sharp curve) and displaying the detected information on an in-vehicle display for a rear seat for entertainment. A device for arousing has been proposed. In this way, an occupant other than the driver can be quickly held against an unstable situation of the vehicle, such as being held by a handrail.

JP 2010-72701 A

  However, since there are not so many vehicles equipped with a rear seat onboard display, there is a problem that the application range is narrow. Further, there is a problem in that it is impossible to know that there is a risk of a sharp curve or the like unless the rear seat onboard display is used.

  In view of the above problems, an object of the present invention is to provide a novel technique for notifying an occupant other than a driver according to a vehicle or a state outside the vehicle.

  In order to achieve the above object, an invention according to claim 1 is an in-vehicle device mounted on a vehicle, wherein the communication means (13) communicates with a portable terminal (2) brought into the vehicle interior of the vehicle. ) And determination means for determining whether notification to the vehicle occupant is necessary based on the behavior data of the vehicle, and communication means (based on determination by the determination means that notification is necessary) An in-vehicle device comprising: a notification control unit that causes the portable terminal (2) to notify the passenger of the vehicle by communicating with the portable terminal (2) using 13). is there.

  Thus, when it determines with notification based on the driving | running | working condition of a vehicle, by making a portable terminal (2) brought into the vehicle interior of a vehicle interior alert | report, it is a highly versatile method than before. It is possible to notify occupants other than the driver.

  Further, the invention according to claim 2 is the in-vehicle device according to claim 1, wherein the determination unit receives data on the environment around the vehicle from the portable terminal (2), and receives the vehicle. It is determined whether or not notification is required to the vehicle occupant on the basis of environmental data and vehicle behavior data. Thus, more various notification determinations can be performed by determining whether notification is necessary based on information from the mobile terminal (2).

  According to a third aspect of the present invention, in the in-vehicle device according to the second aspect, the environmental data around the vehicle received from the portable terminal (2) is a captured image in front of the vehicle. It is characterized by that. This eliminates the need to mount a front camera on the vehicle.

  According to a fourth aspect of the present invention, in the in-vehicle device according to any one of the first to third aspects, the notification control unit is based on the determination unit determining that the notification is necessary. The portable terminal (2) is caused to perform voice notification by bone conduction to the vehicle occupant. As described above, when the notification using the bone conduction is performed, the user can be surely notified without interrupting the call with the voice of the air vibration.

  The invention according to claim 5 is a vehicle notification system comprising an in-vehicle device (1) mounted on a vehicle and a portable terminal (2), wherein the in-vehicle device (1) A communication means (13) for communicating with the portable terminal (2) brought into the vehicle interior of the vehicle, and a determination means for determining whether notification to the vehicle occupant is necessary based on the behavior data of the vehicle And a notification control means for transmitting a notification command to the portable terminal (2) using the communication means (13) based on the determination by the determination means that notification is necessary, the portable terminal (2) is a vehicle notification system that notifies a passenger of the vehicle based on the reception of the notification command.

  Thus, when it determines with notification based on the driving | running | working condition of a vehicle, by making a portable terminal (2) brought into the vehicle interior of a vehicle interior alert | report, it is a highly versatile method than before. It is possible to notify occupants other than the driver.

  According to a sixth aspect of the present invention, there is provided a notifying device for notifying an occupant, receiving means for receiving data on the behavior of the vehicle from an in-vehicle device (1) mounted on the vehicle, and the behavior of the vehicle. Control means for making a notification to the vehicle occupant using the notification device based on determining whether or not notification is necessary for the vehicle occupant based on the data of , A portable terminal characterized by comprising:

  As described above, when the mobile terminal (2) determines that the notification is necessary based on the traveling state of the vehicle, the notification is performed using the notification device, so that a method other than the driver can be used. The passenger can be notified.

  In addition, the code | symbol in the bracket | parenthesis in the said and the claim shows the correspondence of the term described in the claim, and the concrete thing etc. which illustrate the said term described in embodiment mentioned later. .

It is a block diagram of the alerting | reporting system for vehicles in embodiment of this invention. It is a flowchart of the process which a portable terminal performs. It is a flowchart of the process which the control part of a vehicle equipment performs in 1st Embodiment. It is a flowchart of the process which the control part of a vehicle equipment performs in 1st Embodiment. It is a flowchart of the process which the control part of a vehicle equipment performs in 1st Embodiment. It is a figure which shows an example of alerting | reporting. It is a flowchart of the process which the control part of a vehicle equipment performs in 2nd Embodiment. It is a figure which shows an example of alerting | reporting. It is a flowchart of the process which the control part of a vehicle equipment performs in 3rd Embodiment. It is a flowchart of the process which the control part of a vehicle equipment performs in 4th Embodiment. It is a figure which shows the content of notification necessity determination.

(First embodiment)
The first embodiment of the present invention will be described below. In FIG. 1, the structure of the alerting | reporting system for vehicles concerning this embodiment is shown. The vehicle notification system includes an in-vehicle device 1 mounted on a vehicle, a portable terminal 2 carried by an occupant other than the driver of the vehicle (rear seat occupant, passenger occupant, etc.) and brought into the vehicle interior, It is equipped with an in-vehicle display 3 that is mounted (for viewing by a passenger in the seat).

  In the present embodiment, the in-vehicle device 1 acquires travel data and position information of the host vehicle, the mobile terminal 2 acquires Web information, and the in-vehicle device 1 receives the Web information from the mobile terminal 2, and these travels Based on the data, the position information, and the Web information, it is determined whether or not to notify the occupant in the host vehicle (attention notification or warning notification). Is supposed to be done. Therefore, the in-vehicle device 1 and the portable terminal 2 brought into the vehicle interior perform wireless communication with each other by a method such as WiFi communication or Bluetooth communication, and the in-vehicle display 3 is connected to the in-vehicle device 1 by wire. .

  The in-vehicle notification system includes a VICS antenna 5, an in-vehicle LAN 6, a camera 7, a millimeter wave radar 8, a GPS receiver 9, and the like. The VICS antenna 5 is an antenna for receiving traffic information from a VICS transmitter installed on the roadside. The camera 7 is a camera that captures the surroundings of the vehicle. For example, a front camera that captures the vehicle front from the vehicle, a right camera that captures the vehicle right side from the vehicle, a right camera that captures the vehicle left side from the vehicle, and a vehicle rearward view. It consists of a group of cameras called rear cameras. The millimeter wave radar is a device that detects an inter-vehicle distance between the host vehicle and another vehicle in front of the host vehicle. The GPS receiver 9 is a device that receives a signal from a GPS satellite and detects the position of the host vehicle. The in-vehicle device 1 can be connected to an external memory 4 that is a portable storage medium such as a USB memory.

  The in-vehicle device 1 includes a map data storage medium 11, a work memory 12, a wireless communication device 13, a video output device 14, a wired communication interface 15, and a control unit 16. The control unit 16 reads the map data recorded in the map data storage medium 11, uses the work memory 12, uses the wireless communication device 13 to communicate with the portable terminal 2 in the vehicle interior, and displays the on-vehicle display 3. A video output device 14 is used to display a video, and a wired communication interface 15 is used to write data to the external memory 4.

  The portable terminal 2 is a device that can be carried by the user and can communicate wirelessly with the in-vehicle device 1, such as a smartphone and a tablet PC. The mobile terminal 2 can be connected to a wide area network such as the Internet via an access point, a base station, etc. installed outside the vehicle. In addition, the mobile terminal 2 can make a telephone call.

  Such a portable terminal 2 includes a first wireless unit for wireless communication with the vehicle-mounted device, a second wireless unit for connecting to a wide area network and enabling a telephone call, a display for displaying characters and images to the user, A speaker for generating air vibration sound, a vibration actuator for generating vibration such as bone conduction sound, an operation unit for receiving user operations, and a portable side control unit for controlling these units are provided.

  The mobile side control unit can normally execute an application (for example, a game application, a web browsing application, a music playback application) installed in the mobile terminal 2 in a multitasking manner according to a user's execution operation.

  In the present embodiment, after the mobile terminal 2 is started, the mobile side control unit performs the danger / caution notification process shown in FIG. 2 in parallel with other applications in accordance with a predetermined start operation by the user. It has become. Alternatively, the danger / caution notification process may be started based on the activation of the mobile terminal 2.

  In this danger / caution notification process, the portable side control unit determines in step 510 whether or not a danger notification command has been received from the vehicle-mounted device 1, and proceeds to step 530 if it determines that it has not been received. It is determined whether or not a notification command has been received from the in-vehicle device 1, and if it is determined that the notification command has not been received, a process of returning to step 510 is executed.

  Hereinafter, the operation of such a vehicle notification system will be described. In the following description, it is assumed that the process executed by the portable control unit is a process executed by the portable terminal 2. The control unit 16 of the in-vehicle device 1 starts the process of FIG. 3 when the engine of the vehicle is turned on, and first acquires travel data, position information, and Web information in step 105. The travel data includes a travel speed specified based on a travel speed of the vehicle acquired from a vehicle speed sensor (not shown) and a change in the travel speed, and a steering angle acquired from a steering angle sensor (not shown). The position information includes the latitude and longitude of the vehicle specified based on a signal from a GPS receiver (not shown). Web information includes weather information, traffic jam information, and road traffic information.

  Web information is requested and acquired from the portable terminal 2. The portable terminal 2 periodically acquires the above-described Web information from a predetermined Web site on a wide area communication network (for example, the Internet), and transmits the acquired information to the in-vehicle device 1 in response to a request from the in-vehicle device 1. .

  Subsequently, in step 110, known map matching is performed using the position information and map data acquired in the immediately preceding step 105, and as a result of the map matching, the road on which the host vehicle is traveling and the host vehicle on the road are displayed. Identify the location. Then, road information (presence of a sharp curve, presence / absence of an intersection) in the vicinity of the own vehicle position on the identified own vehicle traveling road is read from the map data.

  Subsequently, in step 115, the speed vector of the host vehicle is calculated. This speed vector may be calculated based on, for example, the amount of change in the vehicle position information acquired in step 115, or based on the vehicle speed and steering angle included in the travel data of the vehicle acquired in the previous step 115. It may be calculated.

  Subsequently, in step 120, the inter-vehicle distance, that is, the distance between the vehicle ahead and the host vehicle is detected. This inter-vehicle distance is detected based on an output from a millimeter wave radar attached to the front end of the vehicle.

  Subsequently, in step 125, it is determined whether or not the host vehicle is meandering. Specifically, the trajectory of the host vehicle is calculated based on the transition of the position information acquired in step 105, and it is determined whether the host vehicle is meandering based on the trajectory. For example, if the shape of the host vehicle traveling road identified by the map matching in step 110 is acquired from the map data, the direction along the acquired shape is the front-rear row direction, and the direction orthogonal to the front-rear direction is the horizontal direction, Calculate the lateral component of the vehicle speed of the host vehicle based on the trajectory of the vehicle, determine whether the number of times the calculated lateral component is switched is greater than or equal to a predetermined number of times within a predetermined time retroactive to the present, and If it is equal to or greater than the predetermined number of times within the time, it is determined that the meandering operation is performed, and if it is less than the predetermined number of times within the predetermined time, it is determined that the meandering operation is not performed.

  If it determines with the meandering driving | running | working, it will progress to step 205 of FIG. 4, and will specify the position with respect to the own vehicle of the line on a road (for example using well-known Hough transform) based on the picked-up image acquired from the front camera. Based on the identification result, it is determined whether or not the host vehicle straddles the line. In addition, the line here means an orange line (namely, center line) and a white line.

  When it is determined that the vehicle does not cross the line, the process proceeds to step 210, and it is determined based on step 125 whether the meandering operation is still continued. If it is determined that the meandering operation has not continued, the process returns to step 105 without performing warning notification or danger notification.

  If it is determined in step 210 that the meandering operation continues, the process proceeds to step 215, and a warning notification (notification for alerting) is performed. Specifically, a warning display is transmitted to the mobile terminal 2 while causing the in-vehicle display 3 to perform a warning display. This caution notification command includes notification type information. The notification type information is information indicating the type of event to be notified, and here includes notification content information indicating the type of “meandering”. After step 215, the process returns to step 105.

  The portable terminal 2 that has received this caution notification command determines in step 530 in FIG. 2 that the caution notification command has been received, and proceeds to step 540 to call attention to the user of the portable terminal 2 (for example, a rear seat occupant). Any one or more of image, sound, and vibration are generated. Moreover, you may make another apparatus alert | report by communication. Note that the notification content refers to the notification type information included in the received attention notification command, and performs the type of attention notification corresponding to the notification type information. After step 540, the process returns to step 510.

  In step 540, for example, when the mobile terminal 2 receives a caution notification command while playing music, when it receives a caution notification command while executing a game program, and when it is used for a call by the user. The following notification may be performed each time the attention notification command is received. When the notification is performed by voice, the voice notification is performed only once for each reception of the caution notification command. When notifying by vibration, the sound is notified using bone conduction. In the case of performing notification with an image, notification with an image (for example, black telop characters) is performed only once for each reception of a caution notification command. When notifying other devices by communication, a notice notification command is transmitted to other mobile terminals 2 in the vehicle using WiFi communication and Bluetooth communication. As a result, the other portable terminal 2 in the vehicle also performs caution notification.

  In addition, when performing notification using bone conduction, it is possible to reliably notify the user who is talking. In the case of normal voice notification using air vibration, the call is interrupted, but by using bone conduction, it is possible to achieve both call and caution notification.

  Note that whether to perform notification by image, notification by voice, or notification by vibration may be predetermined in the mobile terminal 2 or, for example, the control unit 16 of the in-vehicle device 1 may The mobile terminal 2 includes the instruction data for instructing to perform notification by bone conduction by vibration in the attention notification command, and the mobile terminal 2 performs bone conduction by vibration based on the fact that the instruction data is included in the received attention notification command. Voice notification may be performed.

  If it is determined in step 205 that the vehicle crosses the line, the process proceeds to step 220, and whether or not the position where the vehicle crosses the line is within the intersection is determined by the intersection position information and the vehicle position included in the map data. Judgment based on.

  If it is determined that the position across the line is within the intersection, the process proceeds to step 225, and it is determined whether or not the current signal display at the intersection is a red signal (that is, a signal indicating entry prohibition). Whether or not the signal is a red signal may be determined based on an image of a traffic light included in a photographed image of the front camera. When information on the current signal display content is transmitted from the traffic light, the signal display You may determine based on the information of a content.

  If it is determined that the signal is a red signal, the process proceeds to step 230, where danger notification is performed. Specifically, the in-vehicle display 3 is made to display a danger notification, and a danger notification command is transmitted to the mobile terminal 2. This danger notification command includes notification type information indicating the type of event to be notified. Here, notification content information indicating the type of “meandering” is included. After step 230, the process returns to step 105.

  The portable terminal 2 that has received this danger notification command determines that the danger notification command has been received in step 510 of FIG. 2, proceeds to step 520, and notifies the user of the portable terminal 2 (for example, a rear seat occupant) of the danger. Therefore, any one or a plurality of images, sounds, and vibrations are generated. Moreover, you may make another apparatus alert | report by communication. Note that the notification content refers to the notification type information included in the received danger notification command, and performs the type of danger notification corresponding to the notification type information. After step 520, the process returns to step 510.

  In step 520, for example, when the portable terminal 2 receives a danger notification command while playing music, when the portable terminal 2 receives a danger notification command while executing a game program, and when the mobile terminal 2 is used for a call by the user. The following notification may be performed each time the danger notification command is received. When the notification is performed by voice, the voice notification is continued until the state of the vehicle is stabilized (for example, until the meandering operation is canceled) for each reception of the danger notification command. In the case of performing notification by vibration, notification using bone conduction is continuously performed until the state of the vehicle is stabilized (for example, until the meandering operation is canceled). In the case of notification by image, for each reception of the danger notification command, the image (for example, a caution telop character with a conspicuous red character is continuously displayed until the state of the vehicle is stabilized (for example, the meandering operation is canceled). ). In addition, when the state of the vehicle is stabilized, the control unit 16 of the in-vehicle device 1 transmits a vehicle stability notification to the mobile terminal 2. Therefore, the portable terminal 2 can detect that the vehicle has stabilized based on the fact that the vehicle stability notification has been acquired.

  Note that whether to perform notification by image, notification by voice, or notification by vibration may be predetermined in the mobile terminal 2 or, for example, the control unit 16 of the in-vehicle device 1 may The portable terminal 2 includes the instruction data for instructing the notification by the bone conduction by vibration in the danger notification command, and the portable terminal 2 determines that the instruction data is included in the received danger notification command. Voice notification may be performed.

  When notifying other devices by communication, a danger notification command is transmitted to other portable terminals 2 in the vehicle using WiFi communication and Bluetooth communication. As a result, other portable terminals 2 in the vehicle also perform danger notification. Further, emergency information including the current position of the vehicle is wirelessly transmitted to a server outside the vehicle using a mobile phone communication function. Thereafter, after the vehicle is stabilized, for example, after the meandering operation is canceled), normal information indicating that the vehicle is normal is wirelessly transmitted to the server again. However, if the state of the host vehicle is within the predetermined abnormal state range (for example, if the acceleration of the host vehicle is within the predetermined abnormal range), the current vehicle position is included in the server again. Wirelessly send help request information. When the server receives the help request information, the server performs processing for arranging to send an emergency vehicle to the vehicle position included in the help request information. If the server cannot receive normal information and help request information for a certain period after receiving the emergency information, the server determines that the situation is an emergency and arranges to send an emergency vehicle.

  If it is determined in step 220 that the position crossing the line is not within the intersection, the process proceeds to step 235, and it is determined whether the destination straddling the line is the position of the destination facility (for example, a convenience store or a parking lot). To do. In addition, as a destination facility, one registered in advance in the vehicle-mounted device 1 by the operation of the driver is used. As the location information of the facility at the destination, the information included in the map data is used.

  If it is determined that the facility is the destination facility, the process returns to step 105 without performing warning notice or danger notice. If it is determined that the facility is not the destination facility, the process proceeds to step 240 and the same danger notification as in step 230 is performed. After step 240, the process returns to step 105.

  If it is determined in step 125 that the vehicle is not meandering, the process proceeds to step 130, where it is determined whether or not there is a high possibility that the host vehicle and the preceding vehicle are in contact with each other. For example, when the inter-vehicle distance detected in the immediately preceding step 120 is less than the reference distance, it is determined that there is a high possibility that the host vehicle and the preceding vehicle are in contact, and the inter-vehicle distance detected in the immediately preceding step 120 is equal to or greater than the reference distance. In such a case, it may be determined that the possibility that the host vehicle and the preceding vehicle are in contact with each other is not high. At this time, the reference distance may be a variable value that decreases as the vehicle speed of the host vehicle increases.

  If it is determined that the possibility of contact is high, the process proceeds to step 250, and it is determined whether or not the host vehicle is decelerating based on the travel acceleration of the host vehicle in the travel data acquired in the immediately preceding step 105.

  If it is determined that the vehicle is decelerating, the process proceeds to step 255. If the vehicle is stopped while maintaining the current deceleration, the acceleration received by the occupant (the amount obtained by dividing the inertial force received by the occupant by the mass of the occupant) is 0. It is determined whether or not it is 75G or more. That is, it is determined whether or not the current acceleration is −0.75 G or less.

  When it determines with the acceleration which a passenger | crew receives is 0.75 G or more, it progresses to step 260 and performs danger notification. Specifically, the in-vehicle display 3 is made to display a danger notification, and a danger notification command is transmitted to the mobile terminal 2. This danger notification command includes notification type information indicating the type of event to be notified. Here, notification content information indicating a type of “reduction in inter-vehicle distance” is included. After step 260, the process returns to step 105. The operation of the mobile terminal 2 that has received this danger notification command is the same as that described in Step 230. However, as an example of the case where the state of the vehicle is stabilized, for example, the inter-vehicle distance to the preceding vehicle may be a reference distance or more.

  If it is determined that the acceleration received by the occupant is less than 0.75G, the process proceeds to step 265, and if the vehicle is stopped while maintaining the current deceleration, whether the acceleration (inertial acceleration) received by the occupant is 0.5G or more. Determine whether. That is, it is determined whether the current acceleration is −0.5 G or less. If it is determined that the acceleration received by the occupant is less than 0.5 G, the process returns to step 105 without performing warning notification or danger notification.

  When it determines with the acceleration which a passenger | crew receives is 0.5 G or more, it progresses to step 270 and alert | reports attention. Specifically, the vehicle-mounted display 3 is made to display a caution notification, and a caution notification command is transmitted to the mobile terminal 2. This notice notification command includes notification type information indicating the type of event to be notified. Here, notification content information indicating a type of “reduction in inter-vehicle distance” is included. After step 270, the process returns to step 105. The operation of the portable terminal 2 that has received this caution notification command is the same as that described in Step 215.

If it is determined in step 250 that the vehicle is not decelerating, the process proceeds to step 275, and it is determined whether or not deceleration of 0.75 G or more is necessary to stop the host vehicle when the vehicle has traveled a predetermined stop distance. Specifically, if the current vehicle speed is V and the stop distance is L, it is determined whether V ² / (2 × L) is 0.75 G or more. Here, the stop distance L may be the inter-vehicle distance detected in the immediately preceding step 120.

  If it is determined that deceleration of 0.75 G or more is necessary, the process proceeds to step 280, the danger notification is performed in the same manner as step 260, and then the process returns to step 105. If it is determined that deceleration of 0.75 G or more is not necessary, the process proceeds to step 285.

  In step 285, it is determined whether or not deceleration of 0.5G or more is necessary for the host vehicle to stop when the vehicle has traveled a predetermined stop distance. If it is determined that deceleration of 0.5 G or more is necessary, the process proceeds to step 290, the caution notification is performed in the same manner as step 270, and then the process returns to step 105.

  When it is determined in step 130 that the possibility that the host vehicle and the preceding vehicle are not in contact is high, the process proceeds to step 135, and it is determined whether or not the host vehicle enters a sharp curve within a predetermined time (for example, 10 seconds). Specifically, based on the speed vector of the host vehicle calculated in the immediately preceding step 115 and information on a range of a curve (that is, a sharp curve) that is equal to or less than a predetermined curvature radius on the host vehicle traveling road, It is determined whether or not a sharp curve is entered within 10 seconds. As for the information on the curve range and the radius of curvature, the information recorded in the map data is read out and used.

  If it is determined that the vehicle does not enter the sharp curve within the predetermined time, neither caution notification nor danger notification is performed, and the routine returns to step 105. If it is determined that a sharp curve is entered within a predetermined time, the process proceeds to step 140, where it is determined whether or not the host vehicle is decelerating based on the travel acceleration of the host vehicle in the travel data acquired in the previous step 105. .

  If it is determined that the host vehicle is decelerating, the process proceeds to step 145, and whether the maximum lateral acceleration applied to the vehicle occupant is 0.75 G or more when the vehicle enters the sharp curve while maintaining the current deceleration. Determine whether or not. The maximum lateral acceleration applied to the vehicle occupant when entering the above sharp curve while maintaining the current deceleration is calculated based on the current deceleration and information on the range and curvature radius of the sharp curve. To do.

  If it is determined that the maximum lateral acceleration is equal to or greater than 0.75 G, the process proceeds to step 150, and danger notification is performed. Specifically, the in-vehicle display 3 is made to display a danger notification, and a danger notification command is transmitted to the mobile terminal 2. This danger notification command includes notification type information indicating the type of event to be notified. Here, notification content information indicating a type of “steep curve approach” is included. After step 150, the process returns to step 105. The operation of the mobile terminal 2 that has received this danger notification command is the same as that described in Step 230. However, as an example of the case where the state of the vehicle is stabilized, there is a case where the vehicle has finished passing a sharp curve, for example.

  If it is determined in step 145 that the maximum lateral acceleration is less than 0.75 G, the process proceeds to step 155 and the maximum lateral acceleration applied to the vehicle occupant when entering the above-mentioned sharp curve while maintaining the current deceleration. Is determined to be 0.5G or more.

  When it is determined that the maximum lateral acceleration is 0.5 G or more, the process proceeds to step 160 and a caution notification is performed. Specifically, the vehicle-mounted display 3 is made to display a caution notification, and a caution notification command is transmitted to the mobile terminal 2. This notice notification command includes notification type information indicating the type of event to be notified. Here, notification content information indicating a type of “steep curve approach” is included. After step 160, the process returns to step 105. The operation of the portable terminal 2 that has received this caution notification command is the same as that described in Step 215. If it is determined in step 155 that the maximum lateral acceleration is less than 0.5 G, the control returns to step 105 without performing warning notification or danger notification.

  If it is determined in step 140 that the vehicle is not decelerating, the process proceeds to step 165, and whether the maximum lateral acceleration applied to the vehicle occupant is 0.75 G or more when the vehicle enters the abrupt curve while maintaining the current vehicle speed. Determine whether.

  If it is determined that the maximum lateral acceleration is equal to or greater than 0.75 G, the process proceeds to step 170, the danger notification is performed in the same manner as step 150, and then the process returns to step 105. If it is determined that the maximum lateral acceleration is less than 0.75G, the process proceeds to step 175, and the maximum lateral acceleration applied to the vehicle occupant when the vehicle enters the sharp curve while maintaining the current vehicle speed is 0.5G or more. It is determined whether or not.

  When it is determined that the maximum lateral acceleration is 0.5 G or more, the process proceeds to step 180, the caution notification is performed in the same manner as step 160, and then the process returns to step 105. In this case, for example, as illustrated in FIG. 6, the mobile terminal 2 performs a warning display on the display 21 such as “Caution, steep curve”. In the balloon of FIG. 6, for example, the background is yellow.

  If it is determined in step 175 that the maximum lateral acceleration is less than 0.5 G, the control returns to step 105 without performing warning notification or danger notification.

  Here, the danger notification performed based on the processing of steps 150, 170, 230, 240, 260, and 280 is compared with the warning notification performed based on the processing of steps 160, 180, 215, 270, and 290. To do.

  In danger notification, a device that can notify passengers, such as mobile terminal 2 and in-car entertainment equipment, is a level that allows passengers to be surely recognized of danger by video (such as a collision screen), voice (large), vibration, etc. Is notified.

  On the other hand, caution notification uses a device that can notify the occupant, such as a martphone or in-car entertainment device, and uses a video (about telop), audio (small), vibration, etc. Do.

  In the above steps 145, 165, 255, and 275, 0.75G is used as the threshold (hereinafter referred to as the first threshold). For example, the weather information (region and current weather) acquired in the previous step 105 is used. Information) and position information, the current weather of the place where the host vehicle is located is specified. If the specified weather is not rainy, the first threshold is set to 0.75 G. The threshold value of 1 may be a value smaller than 0.75G.

  In addition, 0.5G is used as a threshold value (hereinafter referred to as a second threshold value) in the above steps 155, 175, 265, and 285. For example, the weather information (region and current weather) acquired in the previous step 105 is used. Information) and the position information, the current weather of the place where the host vehicle is located is specified. If the specified weather is not rainy, the second threshold is set to 0.5G. The threshold value of 1 may be a value smaller than 0.5G.

  In this way, attention should be paid to vehicle occupants based on vehicle behavior data (running status data, position information, etc.) and surrounding environment data (map data, Web information, etc., images taken by the front camera). It is determined whether notification or danger notification is necessary, and based on the determination that caution notification or danger notification is necessary, the mobile terminal 2 brought into the passenger compartment by a passenger other than the driver (rather than the rear seat display) By making the vehicle occupant notify the vehicle with a high penetration rate, it is possible to notify occupants other than the driver by a method that is more versatile than before.

  Further, the in-vehicle device 1 receives environment data (Web data) around the vehicle from the mobile terminal 2, and based on the received environment data around the vehicle and vehicle behavior data, It is determined whether notification is necessary. In this way, by determining whether or not notification is necessary based on information from the mobile terminal 2, more various notification determinations can be performed.

(Second Embodiment)
Next, a second embodiment of the present invention will be described. In the present embodiment, among the processes of FIG. 3 of the first embodiment, the processes of steps 135 to 180 executed by the control unit 16 of the in-vehicle device 1 are replaced with the processes of steps 305 to 320 of FIG. Others are the same as the first embodiment.

  Hereinafter, the process of FIG. 7 which the control part 16 of the vehicle equipment 1 performs is demonstrated. If it is determined in step 130 that the possibility that the host vehicle and the preceding vehicle are not in contact is high, the process proceeds to step 305, where the acceleration received by the occupant (the amount obtained by dividing the inertial force received by the occupant by the mass of the occupant) is obtained. It is determined whether it is 0.75G or more. The acceleration received by the occupant is calculated based on the current vehicle speed and steering angle.

  When it is determined that the acceleration received by the occupant is 0.75 G or more, the process proceeds to step 310, and danger notification is performed. Specifically, the in-vehicle display 3 is made to display a danger notification, and a danger notification command is transmitted to the mobile terminal 2. This danger notification command includes notification type information indicating the type of event to be notified. Here, notification content information indicating a type of “vehicle behavior deterioration” is included. After step 310, the process returns to step 105. The operation of the mobile terminal 2 that has received this danger notification command is the same as that described in Step 230. However, as an example of the case where the state of the vehicle is stabilized, for example, there is a case where the acceleration received by the occupant becomes 0.3 G or less. In this case, for example, as shown in FIG. 8, the mobile terminal 2 displays a warning display on the display 21 as “Dangerous. The behavior of the car is greatly disturbed”. In the balloon of FIG. 8, for example, the background is red.

  If it is determined in step 305 that the acceleration received by the occupant is less than 0.75G, the process proceeds to step 315, and it is determined whether or not the acceleration currently received by the occupant is 0.5G or more.

  When it is determined that the acceleration received by the occupant is 0.5G or more, the process proceeds to step 320, and caution notification is performed. Specifically, the vehicle-mounted display 3 is made to display a caution notification, and a caution notification command is transmitted to the mobile terminal 2. This notice notification command includes notification type information indicating the type of event to be notified. Here, notification content information indicating a type of “vehicle behavior deterioration” is included. After step 320, the process returns to step 105. The operation of the portable terminal 2 that has received this caution notification command is the same as that described in Step 215. If it is determined in step 315 that the acceleration received by the occupant is less than 0.5 G, the control returns to step 105 without performing warning notification or danger notification.

  Thus, based on the vehicle behavior data (running situation data, position information, etc.), it is determined whether a warning or danger notification corresponding to the sudden behavior of the host vehicle is necessary for the vehicle occupant, Based on the determination that caution notice or danger notice is necessary, the portable terminal 2 brought into the passenger compartment by a passenger other than the driver is notified to the vehicle occupant. An occupant other than the driver can be notified in an expensive manner.

(Third embodiment)
Next, a third embodiment of the present invention will be described. In the present embodiment, among the processes in FIG. 3 of the first embodiment, the processes in steps 135 to 180 executed by the control unit 16 of the vehicle-mounted device 1 are replaced with the processes in steps 325 to 380 in FIG. 9. Others are the same as the first embodiment.

  Hereinafter, the process of FIG. 9 which the control part 16 of the vehicle equipment 1 performs is demonstrated. If it is determined in step 130 that the possibility that the host vehicle is in contact with the preceding vehicle is not high, the process proceeds to step 325 to determine whether the host vehicle is at an intersection, that is, the host vehicle is within a predetermined time (for example, 10 seconds). Whether or not to enter the intersection. Specifically, whether or not the own vehicle enters the intersection within a predetermined time (for example, 10 seconds) based on the speed vector of the own vehicle calculated in the immediately preceding step 115 and the information on the range of the intersection on the traveling road of the own vehicle. Determine whether. In addition, about the information of the range of an intersection, what is recorded on map data is read and used.

  If it is determined that the vehicle does not enter the intersection within a predetermined time, neither caution notification nor danger notification is performed, and the process returns to step 105. When it is determined that the vehicle will enter the intersection within a predetermined time, the process proceeds to step 330, and the display color (separate red, blue, and yellow) of the traffic light is detected based on the traffic light image included in the captured image acquired from the front camera.

  Subsequently, in step 335, based on the detection result in step 330, it is determined whether or not the current signal display at the intersection is a red signal or a yellow signal (that is, a signal indicating entry prohibition). If it is determined that the signal is neither a red signal nor a yellow signal, the caution notification and the danger notification are not performed and the process returns to step 105.

  If it is determined that the signal is neither a red signal nor a yellow signal, the process proceeds to step 340 to determine whether or not the host vehicle is decelerating based on the traveling acceleration of the host vehicle in the traveling data acquired in the immediately preceding step 105. .

  If it is determined that the host vehicle is decelerating, the process proceeds to step 345, and it is determined whether or not the maximum lateral acceleration applied to the vehicle occupant is 0.75 G or more when stopped while maintaining the current deceleration. To do.

  When it determines with the acceleration which a passenger | crew receives is 0.75 G or more, it progresses to step 350 and performs danger notification. Specifically, the in-vehicle display 3 is made to display a danger notification, and a danger notification command is transmitted to the mobile terminal 2. This danger notification command includes notification type information indicating the type of event to be notified. Here, notification content information indicating the type of “prohibited approach to approaching intersection” is included. After step 350, the process returns to step 105. The operation of the mobile terminal 2 that has received this danger notification command is the same as that described in Step 230. However, as an example of the case where the state of the vehicle is stabilized, for example, there is a case where the vehicle has finished passing an intersection.

  If it is determined in step 345 that the acceleration received by the occupant is less than 0.75G, the process proceeds to step 355, and the acceleration received by the vehicle occupant when entering the intersection while maintaining the current deceleration is 0.5G or more. It is determined whether or not.

  When it determines with the acceleration which a passenger | crew receives is less than 0.75G and 0.5G or more, it progresses to step 360 and alerts | reports. Specifically, the vehicle-mounted display 3 is made to display a caution notification, and a caution notification command is transmitted to the mobile terminal 2. This notice notification command includes notification type information indicating the type of event to be notified. Here, notification content information indicating the type of “prohibited approach to approaching intersection” is included. After step 360, the process returns to step 105. The operation of the portable terminal 2 that has received this caution notification command is the same as that described in Step 215. If it is determined in step 355 that the acceleration received by the occupant is less than 0.5 G, the control returns to step 105 without performing warning notification or danger notification.

If it is determined in step 340 that the vehicle is not decelerating, the process proceeds to step 365, and it is determined whether or not deceleration of 0.75 G or more is necessary to stop the host vehicle when traveling for a predetermined stop distance. Specifically, if the current vehicle speed is V and the stop distance is L, it is determined whether V ² / (2 × L) is 0.75 G or more. Here, the stop distance L may be a distance to the intersection.

  If it is determined that deceleration of 0.75 G or more is necessary for the host vehicle to stop when the vehicle has traveled a predetermined stop distance, the process proceeds to step 370, where a danger notification is made in the same manner as in step 350, and then in step 105. Return to. If it is determined that deceleration of 0.75 G or more is not necessary for the host vehicle to stop when the vehicle has traveled a predetermined stop distance, the process proceeds to step 375 to stop the host vehicle when the vehicle has traveled a predetermined stop distance. It is determined whether or not deceleration of 0.5G or more is necessary.

  If it is determined that the deceleration of 0.5 G or more is necessary, the process proceeds to step 380, the caution notification is performed as in step 360, and then the process returns to step 105. If it is determined in step 375 where deceleration of 0.5 G or more is not necessary, the process returns to step 105 without performing a warning notice or a danger notice.

  Thus, based on the vehicle behavior data (running status data, position information, etc.) and the environment data around the vehicle (map data, images taken by the front camera, etc.), the vehicle responds to the approach of the intersection where entry is prohibited. The mobile terminal 2 brought into the vehicle compartment by a passenger other than the driver based on the determination whether the warning notification or the danger notification is necessary for the vehicle occupant and the determination that the caution notification or the danger notification is necessary. Further, by notifying the vehicle occupant, it is possible to notify the occupants other than the driver by a method that is more versatile than before.

(Fourth embodiment)
Next, a fourth embodiment of the present invention will be described. In the present embodiment, the processing of FIGS. 3 to 5 of the first embodiment is replaced with the processing of FIG. Others are the same as the first embodiment. In the present embodiment, as in the first to third embodiments, the in-vehicle device 1 determines the presence / absence of danger / caution.

  The control unit 16 of the in-vehicle device 1 starts the process of FIG. 10 when the vehicle engine is turned on, and first acquires travel data in step 410. The travel data is calculated from the wheel speed of each wheel acquired from a wheel speed sensor (not shown) of the vehicle, the vehicle speed calculated from the wheel speed (for example, calculated as an average value of the wheel speeds of four wheels), and the change in the vehicle speed. Acceleration, vehicle turning angular velocity obtained from a yaw rate sensor (not shown), vehicle position obtained from a GPS receiver, vehicle speed vector calculated from a change in vehicle position (a quantity indicating which vehicle speed is traveling in which direction) , A steering angle acquired from a steering angle sensor (not shown), seat belt SW information indicating presence / absence of wearing of a seat belt acquired from a seat belt sensor, and the like.

  Subsequently, in step 420, the necessity of notification is determined. An outline of the necessity determination of notification is shown in FIG. As shown in FIG. 11, in each of the three categories A, B, and C, it is determined whether or not danger notification and alerting are necessary. Hereinafter, determination of categories A to C will be described.

  [Category A] In category A, the necessity of danger notification and alerting is determined based on the comparison between the wheel speed and the vehicle speed acquired in step 410 immediately before. In other words, for each wheel speed, the difference from the vehicle speed is calculated, and if the maximum absolute value of the difference is within the threshold value, that is, if the vehicle speed and each wheel speed are comparable, it is determined that the vehicle state is normal, It is determined that neither alerting nor warning is required.

  If the maximum value is larger than the threshold value, the wheel speed of the wheel having the largest absolute value difference from the vehicle speed is set as the target wheel speed, and it is determined whether or not the target wheel speed is higher than the vehicle speed. If the target wheel speed is greater than the vehicle speed, if the turning angular speed of the vehicle acquired in the immediately preceding step 410 is greater than a predetermined value, it is determined that the vehicle is spinning and a danger notification is required, and If the turning angular velocity of the vehicle is equal to or lower than a predetermined value, it is determined that the wheel is idling and that it is necessary to call attention. When the target wheel speed is smaller than the vehicle speed, it is determined that the wheel is slipping and it is determined that danger notification is necessary.

  [Category B] In category B, based on the comparison between the rolling direction of the steering wheel of the vehicle (the direction in which the wheel rolls) calculated from the steering angle acquired in the immediately preceding step 410 and the direction of the vehicle speed vector, Judgment is made on the necessity of danger notices and alerts. In addition, in order to compare the rolling direction and the direction of the vehicle speed vector, information on the vehicle body direction is required, but this information is calculated by calculating the vehicle trajectory from the position of the vehicle from the past to the present. This information can be acquired by setting the direction in contact with the trajectory as the direction of the vehicle body.

  If the absolute value of the difference between the rolling direction of the steering wheel and the direction indicated by the vehicle speed vector is within a predetermined value, that is, if the rolling direction of the steering wheel is substantially the same as the direction indicated by the vehicle speed vector, the vehicle state Is determined to be normal, and it is determined that neither danger notification nor alerting is required.

  When the absolute value of the difference between the rolling direction of the steered wheel and the direction indicated by the vehicle speed vector exceeds the predetermined value, the rolling direction of the steered wheel with respect to the direction of the vehicle body is equal to the vehicle speed vector with respect to the direction of the vehicle body. If it is larger than the direction shown, it is determined that the vehicle state is in an understeer state and a danger notification is required, and the rolling direction of the steering wheel relative to the direction of the vehicle body is relative to the direction of the vehicle body If it is smaller than the direction indicated by the vehicle speed vector, it is determined that the vehicle state is in an oversteer state or a state where a counter contact operation has been performed, and it is determined that danger notification is necessary.

  [Category C] In category C, it is determined whether or not danger notification or alerting is necessary based on the seat belt SW information and vehicle speed acquired in the immediately preceding step 410. Specifically, according to the seat belt SW information, if the driver does not wear a seat belt and the vehicle speed is less than 10 km / h, it is determined that the vehicle is stopped or parked, and a danger notification is also issued. It is determined that alerting is unnecessary. Further, according to the seat belt SW information, if the driver does not wear the seat belt and the vehicle speed is 10 km / h or more and less than 80 km / h, the vehicle is determined to be traveling on a general road and alerted. Is determined to be necessary. Further, according to the seat belt SW information, if the driver does not wear the seat belt and the vehicle speed is 80 km / h or more, it is determined that the vehicle is traveling on the highway at a high speed and a danger notification is required. It is determined that

  Subsequent to step 420, the process proceeds to step 430, where it is determined whether or not danger notification is necessary based on the result of notification necessity determination in step 420. Specifically, if there is a category in which at least one of the categories A to C is determined to require danger notification, even if it is determined that alerting is required in other categories. Even if it is determined that neither alerting nor danger notification is necessary in other categories, it is determined that danger notification is necessary.

  If it is determined that danger notification is necessary, the process proceeds to step 440, where danger notification is performed. Specifically, the in-vehicle display 3 is made to display a danger notification, and a danger notification command is transmitted to the mobile terminal 2 and the like. This danger notification command includes notification type information indicating the type of event to be notified. Here, the type (spin or slip in category A, understeer, oversteer, or counter-hit operation in category B, counter-attack operation, in category C, corresponding to the vehicle state specified in the category determined to require danger notification. Notification content information indicating that the seat belt is not worn at high speed) is included. After step 440, the process returns to step 105. The operation of the mobile terminal 2 that has received this danger notification command is the same as that described in Step 230.

  If it is determined in step 430 that danger notification is not necessary, the process proceeds to step 450, and it is determined whether or not alerting is necessary based on the result of determination of necessity of notification in step 420. Specifically, out of the above categories A to C, if there is no category determined to require danger notification and one category determined to require attention notification, Even if it is determined that neither alerting nor danger notification is necessary in the category, it is determined that alerting is necessary.

  If it is determined that attention is required, the process proceeds to step 460, and a warning notification is given. Specifically, the in-vehicle display 3 is made to display a caution notification, and a caution notification command is transmitted to the mobile terminal 2 or the like. This notice notification command includes notification type information indicating the type of event to be notified. Here, notification content information indicating the type corresponding to the vehicle state identified in the category determined to require alerting (wheel slipping in category A, normal running in seat C and no seat belt wearing) is included. . After step 460, the process returns to step 105. The operation of the portable terminal 2 that has received this caution notification command is the same as that described in Step 215. If it is determined in step 450 that alerting is not required, the process returns to step 105 without performing notice of warning or notice of danger.

  As described above, based on vehicle behavior data (running situation data, position information, etc.) and environment data around the vehicle (map data, images taken by the front camera, etc.) It is determined whether the notification is necessary for the vehicle occupant, and based on the determination that the caution notification or the danger notification is necessary, the mobile terminal 2 brought into the passenger compartment by the occupant other than the driver is By notifying the occupant, the occupant other than the driver can be notified by a method that is more versatile than before.

  In each of the above embodiments, the control unit 16 of the in-vehicle device 1 performs steps 125 to 145, 155, 165, 175, 205, 210, 220, 225, 235, 250, 255, 265, 275, 285, 305, 315, 325, 335, 340, 345, 355, 365, 375, 420, 430, and 450, function as an example of a determination unit. Also, steps 150, 160, 170, 180, 215, 230, By executing 240, 260, 270, 280, 290, 350, 360, 370, 380, 440, and 460, the mobile terminal 2 functions as an example of a notification control unit.

(Other embodiments)
As mentioned above, although embodiment of this invention was described, the scope of the present invention is not limited only to the said embodiment, The various form which can implement | achieve the function of each invention specific matter of this invention is included. It is. For example, the following forms are also acceptable.

  (1) In the above embodiment, the in-vehicle device 1 acquires travel data, position information, and the like of the vehicle, acquires Web information from the mobile terminal 2, and based on the acquired information, warning notification and danger notification Whether there is a need for is determined. However, this is not always the case. For example, the mobile terminal 2 may determine whether or not there is a need for caution notification and danger notification, and perform caution notification and danger notification according to the determination result.

  In this case, the control unit 16 of the in-vehicle device 1 does not execute the processes of FIGS. 3 to 5, 7, 9, and 10, but instead, travel data (vehicle speed, wheel speed, angular speed, steering angle, (Including seat belt SW information, inter-vehicle distance from the preceding vehicle, etc.) and position information (including latitude / longitude and vehicle speed vector) are repeatedly acquired, and the acquired travel data and position information are transmitted to the portable terminal 2 each time it is acquired. To do.

  Further, the control unit 16 determines whether or not the host vehicle enters a sharp curve within a predetermined time (for example, 10 seconds) as shown in Step 135 of FIG. 3 based on the acquired travel data, position information, and map data. If it is determined and it is determined that the vehicle enters the sharp curve, the rapid curve approach information indicating that the host vehicle enters the sharp curve within a predetermined time is transmitted to the mobile terminal 2. The sharp curve approach information also includes information on the curvature radius and range of the sharp curve.

  Further, the control unit 16 determines whether or not the own vehicle enters the intersection within a predetermined time (for example, 10 seconds) as shown in Step 325 of FIG. 9 based on the acquired travel data, position information, and map data. If it is determined that the vehicle enters the intersection, the intersection approach information indicating that the host vehicle enters the intersection within a predetermined time is transmitted to the portable terminal 2. The intersection approach information includes the current display contents of traffic lights at the intersection and information on the range of the intersection.

  The mobile terminal 2 (more specifically, the mobile-side control unit) uses these travel data, position information, steep curve approach information, and intersection approach information, as shown in FIGS. 3 to 5, 7, 9, and 10. Various notifications are realized by executing the processing together with the danger / caution notification processing of FIG. However, in the processes of FIGS. 3 to 5, 7, 9, and 10, the caution notification instruction and the warning notification instruction are transferred to the danger / caution notification process of FIG. 2.

  As described above, a notification device (display, speaker, vibration actuator) for notifying the occupant, receiving means (first wireless unit) for receiving the behavior data of the vehicle from the vehicle-mounted device 1, and the behavior of the vehicle. Based on the data or the like, it is determined whether or not the vehicle occupant needs to be notified, and based on the determination that the notification is necessary, control means for performing notification to the vehicle occupant using the notification device (portable side control) Part). As described above, when the mobile terminal 2 determines that the notification is necessary based on the traveling state of the vehicle, the notification is performed by using the notification device, so that the occupant other than the driver can use the method with higher versatility than before. Notification can be performed.

  (2) Moreover, the portable terminal 2 may have a camera for portable terminals. In this case, the mobile terminal 2 is fixed so that the mobile terminal camera captures the front of the vehicle, and the mobile side control unit of the mobile terminal 2 performs image recognition processing on the image captured by the mobile terminal camera. By performing the above, a sign in front of the vehicle, a traffic signal display, and a center line position may be detected, and the detected information may be transmitted to the in-vehicle device 1.

  In this case, when receiving the detected information, the vehicle-mounted device 1 uses the map data, the travel data, and the position information together with the received information to determine the presence / absence of a warning notification or a danger notification. May be. For example, the presence / absence of meandering of the vehicle may be determined based on a change in the position of the center line. When a stop sign is detected, a warning instruction including notification type information to that effect is sent to the mobile terminal 2. May be sent to.

  (3) Moreover, in each said embodiment, the driver may look back about own driving | running | working after a driving | operation, and the support function for improving a driving skill may be added. Specifically, when caution notification and danger notification are performed, it is used to determine presence / absence of caution notification and danger notification such as travel data, position information, etc. during a period including that point (for example, 15 minutes centering on that point). The used data may be recorded as drive record data in a non-volatile storage medium (not shown) in the in-vehicle device 1. After the operation, the drive record data recorded in the nonvolatile storage medium is stored in the external memory 4 based on a predetermined operation performed on the operation unit (not shown) of the in-vehicle device 1. It may come to move. The drive record data recorded in the external memory 4 is displayed by a stationary personal computer, a workstation, or the like. For example, the driver checks the displayed travel locus data (a plurality of position information data) and travel data, You can look back on where the intersection was dangerous and use it for future safe driving. In addition, the drive record data may be transferred to the portable terminal 2 by wireless communication and displayed on the display of the portable terminal 2 as well as being sent to the external memory 4. You can look back on your driving immediately on the spot.

  The vehicle notification system may be used not only when the vehicle travels on a public road but also when traveling on a circuit. When used during circuit driving, the drive record data can be fed back as test driver education data. Until now, the cornering speed was only an individual sense, but it is possible to quantify which corner and how it was driven by the driving trajectory and driving data (acceleration, vehicle speed, etc.), which directly leads to improvement of driving skills. .

  (4) Moreover, in the said embodiment, the control part 16 of the vehicle equipment 1 may perform vehicle-to-vehicle communication or road-to-vehicle communication via the portable terminal 2. FIG. In this case, the portable terminal 2 needs to have a communication function with other vehicles and roadside units. And the control part 16 acquires the positional relationship of the own vehicle and other vehicles, a relative speed, etc. as a result of vehicle-to-vehicle communication or road-to-vehicle communication, and based on this acquired data, whether alert notification is necessary, and It may be determined whether or not danger notification is necessary, and danger notification and caution notification may be performed according to the determination result, as in the above-described embodiment.

  (5) Further, the difference between the danger notification and the caution notification may be as described in the first embodiment, or may be as follows. For example, regarding the notification timing, when the portable terminal 2 receives the danger notification command, the portable terminal 2 immediately notifies the danger, and when the warning notification command is received, the mobile terminal 2 provides a warning notification that can be understood in advance such as approaching a sharp curve, approaching an impossible intersection, etc. In this case, the caution notification may be executed 10 seconds before entering the sharp curve or the intersection. Even when a caution notification command is received, in the case of a caution notification regarding vehicle behavior such as vehicle behavior, meandering, wheel slipping, etc., the caution notification may be received immediately after receiving the caution notification command.

  In addition, regarding the release condition, the warning notification performed by the mobile terminal 2 is based on the user performing a predetermined release operation on the operation unit (for example, a touch panel) of the mobile terminal 2 in order to surely recognize the user. May be released for the first time. On the other hand, the caution notification performed by the mobile terminal 2 may be canceled after a certain period of time, even if a predetermined release operation is not performed on the operation unit. It may be canceled based on the fact that the event that caused the transmission is resolved.

  (6) Moreover, in the said embodiment, the control part 16 of the vehicle equipment 1 does not acquire the picked-up image ahead of a vehicle from a front camera, but acquires the picked-up image ahead of a vehicle from the portable terminal 2 instead. It may be like this. In this case, the portable terminal 2 is fixed so that the portable terminal camera mounted on the portable terminal 2 captures the front of the vehicle, and the portable side control unit of the portable terminal 2 is repeatedly photographed by the portable terminal camera. The captured images may be sequentially transmitted to the in-vehicle device 1. This eliminates the need to mount a front camera on the vehicle.

DESCRIPTION OF SYMBOLS 1 In-vehicle device 2 Portable terminal 3 In-vehicle display 4 External memory 7 Camera 8 Millimeter wave radar 9 GPS receiver

Claims (6)

An in-vehicle device mounted on a vehicle,
A communication means (13) for communicating with the portable terminal (2) brought into the passenger compartment of the vehicle;
Determination means for determining whether or not notification is required to the vehicle occupant based on the vehicle behavior data;
Based on the determination by the determination means that notification is necessary, the communication means (13) is used to communicate with the portable terminal (2), thereby notifying the passenger of the vehicle of the portable terminal (2 An in-vehicle device comprising: a notification control means to be performed.   The determination means receives environment data around the vehicle from the portable terminal (2), and based on the received environment data around the vehicle and behavior data of the vehicle, The in-vehicle device according to claim 1, wherein whether or not notification is necessary is determined.   The in-vehicle device according to claim 2, wherein the environment data around the vehicle received from the portable terminal (2) is a captured image in front of the vehicle.   The notification control unit causes the portable terminal (2) to perform voice notification by bone conduction to the vehicle occupant based on the determination by the determination unit that notification is necessary. The in-vehicle device according to any one of claims 1 to 3. An in-vehicle device (1) mounted on the vehicle;
A vehicle notification system comprising a portable terminal (2),
The in-vehicle device (1)
A communication means (13) for communicating with the portable terminal (2) brought into the passenger compartment of the vehicle;
Determination means for determining whether or not notification is required to the vehicle occupant based on the vehicle behavior data;
A notification control means for transmitting a notification command to the portable terminal (2) using the communication means (13) based on the determination by the determination means that notification is necessary,
The mobile notification system according to claim 1, wherein the mobile terminal (2) notifies the passenger of the vehicle based on the reception of the notification command. A notification device for reporting to an occupant;
Receiving means for receiving data on the behavior of the vehicle from the vehicle-mounted device (1) mounted on the vehicle;
Based on the behavior data of the vehicle, it is determined whether or not notification to the vehicle occupant is necessary. Based on the determination that notification is necessary, the vehicle occupant is notified using the notification device. And a control means for performing the operation.

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