JP2006268081A - Front vehicle door opening alarm controller and front vehicle door opening alarm control program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To notify a driver of whether to pay attention especially to the opening of the door of a parked vehicle when passing the parked vehicle by using inter-vehicle communication. <P>SOLUTION: A navigation device for a vehicle acquires vehicle data constituted of door lock data and right seat passenger data or the like from the other vehicle through an inter-vehicle communication unit (105). As a result, when it is detected that there is any parked vehicle on the lane of its own vehicle (110), and its own vehicle is traveling on a single-sided lane road (120), and it is decided that the door lock of the parked vehicle is released, and that a person is sitting at the right side seat of the parking vehicle (130, 135) according to decision based on the door lock data and right seat passenger data in the vehicle data from the parking vehicle, the navigation device for a vehicle gives parked vehicle avoidance guidance for urging a driver to pay attention to the opening of the door of the parked vehicle (145) based on door size data from the vehicle. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a front vehicle door opening notification control device and a front vehicle door opening notification control program for causing a notification device to perform guidance for alerting a driver to opening a door of a vehicle parked forward. .

Conventionally, as a technique for preventing a vehicle-to-vehicle accident such as an encounter collision, a technique has been proposed in which vehicles exchange their own travel data with an inter-vehicle communication device (see, for example, Patent Document 1).
JP 2004-62381 A

  On the other hand, there are not a few cases in which a vehicle that is parked or stopped is on the traveling lane of the own vehicle, and that the traveling of the own vehicle is obstructed and forced to meander in daily life. In such a case, it is desirable to travel with great care so that the vehicle does not collide even when the door of the parked vehicle suddenly opens. However, there are many other objects that drivers should be aware of, such as oncoming vehicles and vehicles from the rear. In such a case, it is convenient if the driver can know beforehand whether or not special attention is required for opening the door of the parked vehicle.

  In view of the above points, the present invention makes it possible to notify a driver whether or not to carefully open the door of a parked vehicle when overtaking a parked vehicle using vehicle-to-vehicle communication. For the purpose.

  The invention according to claim 1 for achieving the above object is an acquisition means for acquiring data indicating presence of an occupant in a right seat of another vehicle (hereinafter referred to as right seat occupant data) via an inter-vehicle communication device. Based on the right seat occupant data acquired by the acquisition unit, a determination unit that determines that a person is on the right seat of a vehicle parked in front of the vehicle, and a determination by the determination unit And a notifying control means for causing the notifying device to perform guidance for alerting the driver to the opening of the vehicle door.

  As described above, the front vehicle door opening notification control device acquires data indicating the presence of an occupant in the right seat of another vehicle using the inter-vehicle communication device, and parks in front based on the data. It is determined that a person is in the right seat of the vehicle, and based on the determination, the notification device is provided to alert the driver to the opening of the vehicle door. The driver will be able to know that he should pay close attention to the opening of the door.

  According to a second aspect of the present invention, in the forward vehicle door opening notification control device according to the first aspect of the present invention, the acquisition means includes data (indicating a door lock state of another vehicle via an inter-vehicle communication device). (Hereinafter referred to as “door lock data”), and the determination means is based on the door lock data and the right seat occupant data acquired by the acquisition means, and a person gets on the right seat of the vehicle parked forward. And determining that the door lock of the vehicle is released.

  Thus, the forward vehicle door opening notification control device is based not only on the fact that a person is in the right seat but also on the vehicle door lock being released, so that It is possible to determine that there is a high possibility that the door will open and to make a notification based on the determination.

  According to a third aspect of the present invention, in the forward vehicle door opening notification control device according to the first aspect of the present invention, the determination means is such that the own vehicle is traveling on a one-lane road and the vehicle is parked in front. It is characterized in that it is determined that a person is in the right seat of the vehicle that is driving.

  Thus, the forward vehicle door opening notification control device is not only based on the fact that a person is on the right seat but also that the vehicle is traveling on a one-lane road. It is possible to determine that there is a high possibility that the door of the vehicle will open and to make a notification based on that.

  According to a fourth aspect of the present invention, there is provided an acquisition means for acquiring data from another vehicle via an inter-vehicle communication device, and a right seat of a vehicle parked forward based on the data acquired by the acquisition means As a determination means for determining that a person is on the vehicle, and a notification control means for causing the notification device to perform guidance for calling attention to the opening of the vehicle based on the determination of the determination means, It is a front vehicle door opening alert control program for causing a computer to function.

  Thus, the front vehicle door opening notification control apparatus according to claim 1 can also be understood as a front vehicle door opening notification control program.

  Hereinafter, an embodiment of the present invention will be described. FIG. 1 shows a hardware configuration of a vehicle navigation apparatus 1 according to this embodiment. The vehicle navigation device 1 includes a position detector 11, an operation switch group 12, an image display device 13, a speaker 14, an inter-vehicle communication device 15, a RAM 16, a ROM 17, an external storage medium 18, and a control circuit 19. .

  The position detector 11 includes a well-known sensor (not shown) such as a geomagnetic sensor, a gyroscope, a vehicle speed sensor, and a GPS receiver. The current position and direction of the vehicle based on the characteristics of each of these sensors. Is output to the control circuit 19.

  The operation switch group 12 includes a plurality of mechanical switches provided in the vehicle navigation device 1 and an input device such as a touch panel provided so as to overlap the display surface of the image display device 13. A signal based on the touch is output to the control circuit 19.

  The image display device 13 displays a video based on the video signal output from the control circuit 19 to the user. Examples of the display image include a map centering on the current location.

  The vehicle-to-vehicle communication device 15 performs processing according to a predetermined wireless communication protocol for vehicle-to-vehicle communication, such as amplification, frequency conversion, demodulation, and A / D conversion, on a signal received by an antenna (not shown). Output to the control circuit 19. The inter-vehicle communication device 15 performs processing according to a predetermined inter-vehicle communication wireless communication protocol, such as D / A conversion, modulation, frequency conversion, amplification, etc., on the data input from the control circuit 19, and the result Are output to the antenna. By such an operation, the inter-vehicle communication device 15 exchanges data with the inter-vehicle communication device mounted on the other vehicle based on the control of the control circuit 19.

  The external storage medium 18 is a non-volatile storage medium such as an HDD, and stores a program read and executed by the control circuit 19, map data for route guidance, and the like.

  The map data includes road data and facility data including the position and type of the link and node, the connection relationship between the node and the link, the number of lanes of the node, the position of each lane in the node, and the like.

  A control circuit (corresponding to a computer) 19 executes a program for the operation of the vehicle navigation apparatus 1 read from the ROM 17 and the external storage medium 18, and in executing the program, the RAM 16, the ROM 17, and the external storage medium 18. The information is read from the RAM 16 and the information is written to the RAM 16 and the external storage medium 18, and signals are exchanged with the position detector 11, the operation switch group 12, the image display device 13, and the speaker 14.

  Specific processing performed by the control circuit 19 executing the program includes current position specifying processing, guidance route search processing, route guidance processing, and the like.

  The current position specifying process is a process for specifying the current position and direction of the vehicle based on a signal from the position detector 11 using a known technique such as map matching.

  The guidance route search process is a process of receiving an input of a destination by the user from the operation switch group 12 and calculating an optimum guidance route from the current position to the destination.

  In the route guidance process, map data is read from the external storage medium 18 and an image in which the calculated guidance route, destination, waypoint, current position, etc. are overlaid on the map indicated by this map data is output to the image display device 13. In this process, a guidance voice signal for instructing a right turn, a left turn, or the like is output to the speaker 14 when the host vehicle needs to arrive before the guidance intersection.

  Further, the control circuit 19 of the present embodiment repeatedly executes a forward vehicle door opening notification control program 100 as shown in FIG. In the execution of the forward vehicle door opening notification control program 100, the control circuit 19 first acquires vehicle data from another vehicle via the inter-vehicle communication device 15 in step 105. The vehicle data acquired from the other vehicle includes (1) current position data of the other vehicle, (2) vehicle speed data of the other vehicle, (3) engine state data of the other vehicle, and (4) a hazard state of the other vehicle. Data, (5) blinker state data of the other vehicle, (6) signal waiting state data of the other vehicle, (7) door lock data of the other vehicle, (8) right seat occupant data of the other vehicle, (9 ) There is door size data of other vehicles.

  The inter-vehicle communication device of the other vehicle creates current position data based on a signal from a GPS receiver mounted on the other vehicle, for example, and based on a signal from a vehicle speed sensor mounted on the other vehicle, for example. Vehicle speed data, for example, the position of the ignition key of the other vehicle is detected to create engine state (ie, engine on / off) data, and the hazard control switch of the other vehicle is turned on / off, for example. Detects and creates hazard state data (that is, whether or not the hazard lamp is blinking), and also detects turn signal control switch on / off of the other vehicle, for example, and turns the blinker state (that is, whether or not the blinker is blinking) ) Create data and based on, for example, whether you are stopped within a reference distance before the intersection with the signal To create a data signal wait state (whether either a or signal waiting in). Whether or not the vehicle is within the reference distance in front of the intersection with the signal is based on the current position of the vehicle and the location information of the intersection with the signal in the map data of the inter-vehicle communication device of the other vehicle. Identify. The reference distance may be a constant value stored in advance, a value that varies based on various conditions, or a value that is randomly determined within a certain range.

  Further, the inter-vehicle communication device of the other vehicle detects, for example, on / off of the door lock device of the other vehicle, and is in a door locked state (that is, whether the door is locked or the door is unlocked). Create data. In addition, the inter-vehicle communication device of the other vehicle determines whether or not there are passengers in the right front seat and the right rear seat in the vehicle interior based on the image captured by the in-vehicle camera and the detection result of the load sensor of each seat. Data to be shown, that is, right seat occupant data is created. Moreover, the inter-vehicle communication device of the other vehicle creates door size data by reading out door size (length, door opening angle, etc.) data stored in advance.

  Subsequently, in step 110, based on the vehicle data received in step 105, it is determined whether there is a parked vehicle within a reference distance ahead on the traveling lane of the host vehicle. Here, the reference distance ahead may be a constant value stored in advance, or may be a value that fluctuates based on various conditions such as the width of the running road and the traveling speed of the host vehicle. The value may be determined randomly within a certain range.

  In addition, which lane the vehicle is on is determined based on current position data in the vehicle data transmitted by the inter-vehicle communication device of the vehicle. Specifically, based on the link position information included in the map data of the external storage medium 18 and the position information of each lane of the link, the lane closest to the current position data is specified, and the lane of the vehicle is identified. It is assumed that the travel lane is. Further, the traveling lane of the own vehicle is also specified by the same method as the above method based on the current position of the own vehicle specified by the above-described current position specifying process and the map data. In order to use such a specifying method, it is desirable that the accuracy of specifying the current position is equal to or less than the travel lane width (for example, 1 meter). For that purpose, as a GPS receiver mounted on the host vehicle or other vehicles, a receiver capable of measuring the current position by a well-known D-GPS method or RTK (real-time kinematic) -GPS method is used.

  When the vehicle navigation device 1 has a camera that captures the front of the vehicle, the control circuit 19 analyzes the image captured by the camera and extracts the position of the white line and the vehicle ahead. The vehicle may be detected on the traveling lane of the host vehicle. In this case, in order to identify the other vehicle on the traveling lane of the own vehicle detected by the camera and the vehicle data transmitted from the inter-vehicle communication device of the other vehicle, for example, the inter-vehicle communication device of the other vehicle. However, the license data is included in the vehicle data to be transmitted, and the control circuit 19 specifies the content of the license plate of the other vehicle from the photographed image of the other vehicle on the traveling lane of the own vehicle by using a well-known character recognition technique. The vehicle data whose license plate data matches the specified content may be used as the vehicle data of the vehicle on the same lane.

  Whether the other vehicle is parked or stopped is determined based on vehicle speed data, engine state data, hazard state data, turn signal state data, and signal waiting state data included in the vehicle data from the other vehicle. A figure using the result of specifying the vehicle speed of other vehicles, whether the engine is stopped, whether the hazard is flashing, whether the blinker is flashing, whether it is waiting for a signal, etc. The determination is made according to the case classification shown in the flowchart of FIG.

  That is, when the engine is stopped, it is always determined that the vehicle is parked (corresponding to a branch from step 210 to YES). Further, if the engine is not stopped and the vehicle speed is not zero, it is determined that the vehicle is not parked (corresponding to a step 210 → 220 and a branch from step 220 to NO). If the hazard is blinking when the engine is operating and the vehicle speed is zero, it is determined that the vehicle is parked (corresponding to steps 210 → 220 → 230 and branch from step 230 to YES). .

  Further, when the engine is operating and the vehicle speed is zero, if the blinker blinks, it is determined that the vehicle is waiting for a right or left turn and that the vehicle is not parked (from step 210 → 220 → 230 → 240 and step 240). Equivalent to a branch to YES). Further, when the engine is operating and the vehicle speed is zero and neither the hazard nor the blinker is blinking, it is determined that the vehicle is not parked or stopped if waiting for a signal (step 210 → 220 → 230 → 240 → 250, and step 250). If it is not waiting for a signal, it is determined that the vehicle is parked (step 210 → 220 → 230 → 240 → 250, and step 250 to NO).

  As described above, “parking / stopping” means a case where the vehicle is stopped except for waiting for a right / left turn and waiting for a signal.

  If it is determined in step 110 as described above that there is a parked vehicle within the forward reference distance on the travel lane of the host vehicle, then step 115 is executed, and if it is determined that there is no parked vehicle, The one-time execution of the forward vehicle door opening notification control program 100 is terminated.

  In step 115, the image display device 13 and the speaker 14 are notified as characters and sounds, respectively, that the parked / stopped vehicle is ahead on the traveling lane of the host vehicle.

  Subsequently, at step 120, it is determined whether or not the host vehicle is traveling on a one-lane road on one side. Whether the road on which the host vehicle is traveling is a one-lane road may be specified based on the map data. If the vehicle navigation device 1 has a camera for photographing the front of the vehicle, the camera May be specified by analyzing the image taken and extracting the position of the white line and the position of the median strip. If the host vehicle is not traveling on a one-lane road, step 125 is subsequently performed. If the host vehicle is traveling, step 130 is subsequently performed.

  When the host vehicle is traveling on a multi-lane road on one side, as shown in the overhead view of the two-lane road on one side, if the host vehicle moves to another lane to avoid the parked vehicle, Even if the door is opened, there is no contact. Accordingly, in step 125, the image display device 13 and the speaker 14 are guided to guide the image and the sound for guiding the user to change the traveling lane, respectively.

  In step 130, it is determined whether the door lock of the parked vehicle is in an operating state, that is, whether the door is locked based on the door lock data included in the vehicle data of the parked vehicle, If it is in the operating state, step 140 is executed. If it is not in the operating state, step 135 is executed.

  In step 135, whether or not a person is on the right seat of the parked vehicle is determined based on right seat occupant data included in the vehicle data of the parked vehicle. Here, when the right seat occupant data indicates that a person is on one or both of the right front seat and the right rear seat, if the person is on the right seat of the parked vehicle Next, step 145 is executed. If the right-seat occupant data indicates that no person is on either the right front seat or the right rear seat, it is determined that no person is on the right seat of the parked vehicle. Step 140 is executed.

  In step 140 executed when the door of the parked vehicle is locked or when no person is on the right seat of the parked vehicle, the possibility of the door of the parked vehicle being opened is relatively small. Then, the image display device 13 and the speaker 14 are instructed to guide the image and the sound instructing the oncoming vehicle and the vehicle from behind to pass carefully.

  In step 145, which is executed when the door of the parked vehicle is unlocked and a person is on the right seat of the parked vehicle, the parked vehicle is monitored while paying attention to the oncoming vehicle and the rear vehicle. The image display device 13 and the speaker 14 are instructed to give an image and a sound, respectively, instructing the vehicle to pass at a distance equal to or larger than the size of the door from the stopped vehicle. As an image to be displayed on the image display device 13 at this time, as shown in FIG. 5, in the overhead view of the traveling road, when the own vehicle passes along the route 31 and the own vehicle is aligned with the parked and stopped vehicles, To include a predicted figure 32 of the own vehicle, and door figures 33 and 34 for visually indicating the door length and the maximum opening of the parked vehicle. It may be anything. Here, the door graphic is drawn with a size and an opening based on the door size data included in the vehicle data for the parked vehicle.

  Thus, the degree of alerting the parked vehicle in the guidance of steps 125, 140, and 145 is stronger in the case of step 145 than in the case of steps 125 and 140.

  Following steps 125, 140, and 145, in step 150, the vehicle waits until it passes by the parked vehicle, and when it passes, the guidance that started in steps 125, 140, and 145 in step 155 follows. The control for this purpose is ended, and then the execution of the front vehicle door opening notification control program 100 for one time is ended.

When the control circuit 19 executes the front vehicle door opening notification control program 100 as described above, the vehicular navigation device 1 can receive current position data, vehicle speed data, engine status data, hazard status data, blinker status from other vehicles. Vehicle data consisting of data, signal waiting state data, door lock data, right seat occupant data, etc. is acquired via the inter-vehicle communication device 15 (see step 105). As a result, the vehicle parked on the lane of the own vehicle. If it is detected (see step 110), the presence / absence of the parked vehicle is notified (see step 115), and if the host vehicle travels on a multi-lane road on one side (see step 120), the travel lane We will guide you to change. (See step 125)
Further, the vehicle navigation device 1 includes a parked vehicle on the lane of the own vehicle (see step 110). Further, when the own vehicle travels on a one-lane road (see step 120), If it is determined by the determination based on the door lock data and the right seat occupant data in the vehicle data of the vehicle that the door of the parked vehicle is locked (see step 130) and the person on the right seat of the parked vehicle If it is determined that the vehicle is not sitting (see step 135), the guidance of passing through the parked and stopped vehicle is given with attention to the oncoming vehicle and the vehicle from behind (see step 140). If it is determined that the door lock is released and a person is sitting in the right seat of the parked vehicle (see steps 130 and 135), the park Based on the door size data from the vehicle, perform a parked vehicle avoidance guide to alert the driver to the opening of the door of the vehicle (see step 145).

  By the operation of the vehicle navigation device 1, the driver knows that the person is on the right seat of the parked vehicle that blocks the front of the host vehicle and that the door of the parked vehicle is likely to open. Will be able to. In addition, it is possible to perform a detailed operation in which the own vehicle is traveling on a one-lane road on one side, and the guidance for the strongest alert is given by selecting a scene where the door must be opened more carefully. .

In the above embodiment, the vehicle navigation device 1 corresponds to a front vehicle door opening notification control device, and the image display device 13 and the speaker 14 correspond to a notification device. Further, the control circuit 19 functions as an acquisition unit by executing step 105 of the front vehicle door opening notification control program 100, and functions as a determination unit by executing steps 110, 120, 130, and 135. By executing 125, 140, and 145, it functions as a notification control means.
(Other embodiments)
Although the embodiment of the present invention has been described above, the configuration of the present invention is not limited to the above-described embodiment, and includes various modes that can realize the functions of each component of the present invention. .

  For example, the parked vehicle is a vehicle when the vehicle is stopped except for waiting for a right / left turn and waiting for a signal. In addition to waiting for a right or left turn and waiting for a signal, a vehicle that is stopped at a pedestrian crossing or a railroad crossing may be a parked vehicle.

  Further, whether or not the other vehicle is waiting for the signal may be specified by the control circuit 19 based on the position data received from the other vehicle and the map data in the external storage medium 18.

  The vehicle data need not be received directly from the inter-vehicle communication device of the vehicle related to the vehicle data. For example, the vehicle data transmitted from the vehicle is relayed by the inter-vehicle communication device of another vehicle, and the relay As a result, the inter-vehicle communication device 15 of the own vehicle may receive the vehicle data.

It is a hardware block diagram of the vehicle navigation apparatus 1 concerning embodiment of this invention. 4 is a flowchart of a forward vehicle door opening notification control program 100 executed by a control circuit 19; It is a flowchart which shows the detail of determination of whether the vehicle is parked or stopped. It is a figure which shows a mode that the own vehicle avoids a parked vehicle when driving | running | working on the one-side 2 lane road. It is a figure which shows an example of the guidance image which the image display apparatus 13 displays in step 145 of the front vehicle door opening alert control program 100. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Vehicle navigation apparatus, 11 ... Position detector, 12 ... Operation switch group,
DESCRIPTION OF SYMBOLS 13 ... Image display apparatus, 14 ... Speaker, 15 ... Inter-vehicle communication device, 16 ... RAM,
17 ... ROM, 18 ... external storage medium, 19 ... control circuit,
100: Front vehicle door opening notification control program.

Claims (4)

Acquisition means for acquiring data indicating the presence of an occupant in the right seat of another vehicle (hereinafter referred to as right seat occupant data) via an inter-vehicle communication device;
Based on the right seat occupant data acquired by the acquisition unit, a determination unit that determines that a person is on the right seat of a vehicle parked in front of the vehicle;
A forward vehicle door opening notification control device comprising: notification control means for causing the notification device to perform guidance for alerting the driver to the opening of the vehicle door based on the determination by the determination means. The acquisition means acquires data indicating a door lock state of another vehicle (hereinafter referred to as door lock data) via an inter-vehicle communication device,
The determination means is based on the door lock data and the right seat occupant data acquired by the acquisition means, and a person is on the right seat of a vehicle parked forward, and the vehicle door The front vehicle door opening notification control device according to claim 1, wherein it is determined that the lock is released. The determination means determines that the host vehicle is traveling on a one-lane road and that a person is on the right seat of a vehicle parked in front of the vehicle. The front vehicle door opening notification control device according to claim 1. Acquisition means for acquiring data from other vehicles via the inter-vehicle communication device;
Based on the data acquired by the acquisition unit, a determination unit that determines that a person is on the right seat of a vehicle parked in front of the vehicle, and
A front vehicle door opening notification control program for causing a computer to function as notification control means for causing a notification device to perform guidance for calling attention to the opening of the vehicle door based on the determination by the determination means.

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