JP2008305151A - Danger notification system for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a danger notification system for vehicle which notifies a right-turn vehicle on a crossing of a position of a vehicle traveling straight on an opposite lane in a short time. <P>SOLUTION: A roadside unit (A) 5 provided in the crossing 1 processes an image photographed by a roadside camera (A) 9 to detect a dangerous vehicle 41 entering the crossing 1. The roadside unit (A) 5 receives data showing a vehicle ID, a vehicle running direction, and turn indicator information from the right-turn vehicle 20, and detects that the right-turn vehicle 20 is present on the crossing 1. The roadside unit (A) 5 transmits data to a roadside unit (B) 10 to perform danger notification. The roadside unit (B) 10 receiving the danger notification data transmits instruction data to an oncoming vehicle (A) 27 on the opposite lane to the right-turn vehicle 20, and blinks headlights 33 of the oncoming vehicle (A) 27 to warn the right-turn vehicle 20 against the dangerous vehicle 41. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a vehicle danger notification system for notifying a right-turn vehicle on an intersection that there is a danger due to a straight vehicle entering the intersection.

  In recent years, there has been a marked increase in support for safe driving of vehicles as part of ITS (Intelligent Transport Systems). As one of safe driving assistance for vehicles, it is considered to provide information regarding a straight vehicle facing the right turn vehicle at an intersection. That is, for a vehicle that has stopped for a right turn at an intersection, the approach of a vehicle that goes straight in the opposite lane affects the timing at which the vehicle starts to make a right turn. Is hidden behind a large vehicle or the like that is stopped in the oncoming lane, it will not be visible until a straight vehicle approaches, making it difficult to measure the right turn timing. If a right turn vehicle starts making a right turn without noticing the presence of a straight-ahead vehicle, a collision of both vehicles will be caused.

  Here, for the driver of the first vehicle in the train that is stopped on the intersection for a right turn, there is a fear of suddenly moving straight ahead from the shadow of the oncoming vehicle. Due to the prolonged stop of the own vehicle and the psychological pressure caused by the vehicles lined up behind, a heavy mental burden is imposed. On the other hand, if a right-turn vehicle can obtain information on a straight vehicle hidden behind an oncoming vehicle, the mental burden on the driver can be reduced, and it can be great for preventing a collision with a straight vehicle due to a wrong timing for starting a right turn. effective.

In order to achieve the above-described object, there has been a conventional technique in which a right turn vehicle receives information on an oncoming vehicle from a base station and displays it on a display device in a passenger compartment so that an actual arrangement of the oncoming vehicle can be understood (for example, (See Patent Document 1 or Patent Document 2). According to this, the driver who has seen the display device can know the presence of a straight-ahead vehicle on the oncoming lane, and the above-mentioned temporary purpose can be achieved.
JP-A-2005-11251 JP 2005-11252 A

However, in the above-described prior art, it is difficult for the driver of a right turn vehicle looking at the screen of the display device to grasp the position of the straight vehicle at the actual intersection in a short time, and the timing at which the right turn vehicle starts making a right turn is immediately It was difficult to grab. In other words, the image of the display device shows the arrangement of the straight-ahead vehicle when viewed from above on the two-dimensional screen, and the actual intersection scenery seen from the driver's seat of the right-turn vehicle does not match in the first place. Absent. Furthermore, if the intersection that turns right is the first place to pass, the driver has no image of the roads, facilities, etc. that make up the intersection, and the straight vehicle displayed on the display device is actually located at the position on the intersection. I couldn't figure it out in a short time.
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a vehicle danger notification system in which a right turn vehicle on an intersection can know in a short time the position of the vehicle that goes straight on the oncoming lane. There is.

  According to the danger notification system for a vehicle according to claim 1, when it is detected that there is a right turn vehicle, and when it is detected that there is an approach vehicle, in order to urge the right turn vehicle to pay attention to the approach vehicle. On the intersection, data is transmitted to the leading vehicle among the vehicles that are hiding the approaching vehicle for the right turn vehicle, and the leading vehicle is operated. As a result, it can be seen that the approaching vehicle to the intersection is hidden behind the oncoming vehicle that has operated in some way, so that the driver of the right turn vehicle can easily grasp the position of the approaching vehicle.

  According to the danger notification system for a vehicle according to claim 2, when the first roadside machine detects the right turn vehicle and the approaching vehicle, the first roadside machine transmits data to the second roadside machine to notify the danger, The second roadside aircraft that received the notification from the vehicle sends data to nearby vehicles and activates the vehicle with the best reception sensitivity as the leading vehicle, so that the right turn vehicle is careful of the approaching vehicle. Prompt. Thereby, the second roadside machine can search and operate the leading vehicle by a simple method.

According to the vehicle danger notification system according to claim 3, the plurality of vehicles that are located in the vicinity of the second roadside machine and have received data from the second roadside machine perform inter-vehicle communication with each other, and receive sensitivity of each of them. To determine the vehicle having the best reception sensitivity. Thereby, in order to search for the head vehicle, the second roadside device only needs to transmit data to vehicles in the vicinity, and the second roadside device does not need to compare the reception sensitivity of each vehicle.
According to the danger notification system for a vehicle according to claim 4, it is possible to avoid danger from the approaching vehicle side by notifying the approaching vehicle that there is a right turn vehicle on the intersection. You can make a right turn on the top more safely.

According to the vehicle danger notification system of the fifth aspect, the first roadside device receives the data indicating the vehicle state information of the approaching vehicle, and releases the operation of the leading vehicle based on the obtained vehicle state information. As a result, when the approaching vehicle makes a left turn, stops, etc., and the danger to the right turn vehicle disappears, the warning to the right turn vehicle is released, and the right turn vehicle is urged to pay caution. Can be prevented.
According to the vehicle danger notification system of the sixth aspect, the headlight of the leading vehicle is passed to urge the right turn vehicle to pay attention to the approaching vehicle. Accordingly, it is possible to call attention to the right-turn vehicle only by causing the leading vehicle to perform a simple operation.

  Hereinafter, a vehicle danger notification system according to an embodiment of the present invention will be described with reference to FIGS. 1 to 9. In the following description, the description relating to the direction of the intersection 1 or the like used will be referred to based on the horizontal and vertical directions of the configuration shown in FIG. FIG. 1 is a plan view showing a configuration / arrangement of a vehicle danger notification system. As shown in FIG. 1, an intersection 1 is formed by crossing a horizontal road 2 and a vertical road 3. At the four corners of the intersection 1, sidewalks 4a, 4b, 4c, and 4d are provided, respectively.

  In FIG. 1, a roadside machine (A) 5 is installed at the corner of a sidewalk 4 a located above the lateral road 2 and to the right of the longitudinal road 3. The roadside machine (A) 5 corresponds to the right turn vehicle detection means, the approaching vehicle detection means, and the first roadside machine of the present invention. As shown in FIG. 2, the roadside machine (A) 5 is wired with a roadside camera (A) 9 that captures the intersection 1 It is connected. The roadside camera (A) 9 corresponds to the intersection photographing means and camera of the present invention, and a normal CCD camera, CMOS camera, or the like is used. The roadside camera (A) 9 is installed so that the lane located on the upper side in FIG. 1 of the lateral road 2 can be photographed toward the left.

  The roadside machine (A) 5 includes an image processing unit 6 connected to the roadside camera (A) 9, a roadside control unit 7 connected to the image processing unit 6, and a roadside radio unit 8 connected to the roadside control unit 7. (Corresponding to the communication device of the present invention). The image processing unit 6 processes the image data acquired by the roadside camera (A) 9 and transmits it to the roadside control unit 7. The roadside control unit 7 is formed by a CPU, a memory such as a ROM and a RAM, and various interface circuits, and controls the image processing unit 6 and the roadside radio unit 8. The roadside wireless unit 8 controlled by the roadside control unit 7 exchanges data with the outside by wireless communication. In addition, the roadside radio | wireless part 8 of the roadside machine (A) 5, the roadside radio | wireless parts 13 and 18 of the roadside machines (B) 10- (E) 17 mentioned later, and the vehicle radio | wireless part 22,29,36,43 of each vehicle Is a vehicle-to-vehicle communication based on a DSRC (Dedicated Short Range Communication) system using, for example, 5.8 GHz radio waves.

  Further, the roadside machine (B) is located above the lateral road 2 and at the corner of the sidewalk 4b located to the left of the vertical road 3 so as to sandwich the vertical road 3 together with the roadside machine (A) 5. ) 10 is installed. The roadside machine (B) 10 corresponds to the danger notifying means and the second roadside machine of the present invention, and an oncoming vehicle (A) 27, which is the leading vehicle among the vehicles facing the right turn vehicle 20 at the intersection 1, as will be described later. It is located in the vicinity. As shown in FIG. 3, the roadside machine (B) 10 is similar to the roadside machine (A) 5, the roadside camera (B) 14 is connected to the roadside camera (B) 14 by wire, and the roadside is connected to the image processing unit 11. A control unit 12 and a roadside radio unit 13 (corresponding to the communication device of the present invention) connected to the roadside control unit 12 are provided.

  The roadside control unit 12 is formed by a CPU, a memory such as a ROM and a RAM, and various interface circuits, and controls the image processing unit 11 and the roadside wireless unit 13. The roadside wireless unit 13 controlled by the roadside control unit 12 exchanges data with the outside by wireless communication. The roadside camera (B) 14 is installed so that the lane located on the left side of the longitudinal road 3 in FIG. 1 can be photographed downward, but the roadside camera (B) 14 is used in the present invention. Are not directly related.

  Furthermore, on the sidewalk 4b, a roadside machine (C) 15, a roadside machine (D) 16, and a roadside machine (E) 17 are installed at regular intervals so as to go to the left along the side of the lateral road 2. ing. As shown in FIG. 4, the roadside machine (C) 15, the roadside machine (D) 16, and the roadside machine (E) 17 include a roadside control unit 19 connected to the roadside radio unit 18 and the roadside radio unit 18, respectively. ing. The roadside control unit 19 is formed by a CPU, a memory such as a ROM and a RAM, and various interface circuits, and controls the roadside radio unit 18. Also in the roadside machine (C) 15, the roadside machine (D) 16, and the roadside machine (E) 17, the roadside radio unit 18 controlled by the roadside control unit 19 exchanges data with the outside by wireless communication. Do.

  On the other hand, a vehicle 20 (hereinafter referred to as a right-turn vehicle 20) that is about to turn right in order to enter the intersection 1 from the right side of the lateral road 2 and proceed to the upper side of the longitudinal road 3 almost at the center of the intersection 1. Called) is stopped. As shown in FIG. 5, the right turn vehicle 20 includes a vehicle radio unit 22 and a vehicle communication control unit 23 that are connected to each other, and includes a vehicle communication device 21 that is formed in the same manner as the roadside unit (C) 15 described above. Yes. The vehicle radio unit 22 is controlled by the vehicle communication control unit 23 and performs radio communication with the roadside machine (A) 5.

  The right turn vehicle 20 includes a vehicle controller 25 connected to the vehicle communication control unit 23 and connected to the turn signal switch 24 and the navigation device 26. The vehicle controller 25 mainly includes a CPU, a memory unit, and an input / output unit, and controls the vehicle communication device 21 and the navigation device 26. Further, the turn signal switch 24 is interlocked with a winker (not shown) of the right turn vehicle 20, and by detecting this, it can be determined whether or not the winker is operating. Further, the navigation device 26 searches for a guidance route based on the detected current location of the right turn vehicle 20 and the input destination, and performs route guidance based on the searched route.

  An oncoming vehicle (A) 27 and an oncoming vehicle (B) 34 are traveling toward the right on the opposite lane to the right turn vehicle 20 on the lateral road 2. The oncoming vehicle (A) 27 corresponds to the leading vehicle of the present invention, and as shown in FIG. 6, the oncoming vehicle (A) 27 includes a vehicle radio unit 29 and a vehicle communication control unit 30 connected to each other. The vehicle communication device 28 formed similarly is provided. The vehicle radio unit 29 is controlled by the vehicle communication control unit 30 and performs radio communication with the roadside machine (B) 10 and the oncoming vehicle (B) 34.

The oncoming vehicle (A) 27 is connected to the vehicle communication control unit 30 and includes a vehicle illumination control unit 32 connected to the hazard 31 and the headlight 33. The vehicle illumination control unit 32 mainly includes a CPU, a memory unit, and an input / output unit, receives data from the vehicle communication control unit 30, and lights the hazard 31 or the headlight 33 as necessary.
Further, the oncoming vehicle (B) 34 has the same configuration as the oncoming vehicle (A) 27, and as shown in FIG. 7, a vehicle including a vehicle radio unit 36 and a vehicle communication control unit 37 connected to each other. In addition to being connected to the communication device 35 and the vehicle communication control unit 37, a vehicle illumination control unit 39 connected to the hazard 38 and the headlight 40 is provided.

  On the opposite lane with respect to the right turn vehicle 20 on the lateral road 2, it is located on the road side edge side with respect to the oncoming vehicle (A) 27 and the oncoming vehicle (B) 34, and the motorcycle 41 (because it is difficult to see for the right turn vehicle 20, A dangerous vehicle 41) is running. The dangerous vehicle 41 corresponds to an approaching vehicle according to the present invention, and travels to the right on the opposite lane with respect to the right turn vehicle 20 and enters the intersection 1. Since the oncoming vehicle (A) 27 and the oncoming vehicle (B) 34 are aligned with the dangerous vehicle 41, the dangerous vehicle 41 is hidden from the right turn vehicle 20 so that it cannot be seen from the view. As shown in FIG. 8, the dangerous vehicle 41 includes a vehicle radio unit 43 and a vehicle communication control unit 44 that are connected to each other, and includes a vehicle communication device 42 that is formed in the same manner as the roadside device (C) 15 described above. Yes. The vehicle radio unit 43 is controlled by the vehicle communication control unit 44 and performs radio communication with the roadside machine (E) 17.

  The dangerous vehicle 41 includes a vehicle controller 46 connected to the vehicle communication control unit 44, a turn signal switch 45 connected to the vehicle controller 46, a speed sensor 47, and a display device 48. The vehicle controller 46 mainly includes a CPU, a memory unit, and an input / output unit, and controls the vehicle communication device 42 and the display device 48. Further, the turn signal switch 45 is interlocked with a winker (not shown) of the dangerous vehicle 41, and by detecting this, it can be determined whether or not the winker is operating. The speed sensor 47 is attached to a transmission or the like (not shown) of the dangerous vehicle 41 and detects the vehicle speed of the dangerous vehicle 41. The display device 48 displays a predetermined image on the screen based on an instruction from the vehicle controller 46.

  Hereinafter, based on the sequence shown in FIG. 9, the control method of the danger notification system for vehicles by this embodiment is demonstrated. First, the image data of the intersection 1 by the roadside camera (A) 9 is transmitted to the roadside machine (A) 5 (step A1). The image data obtained by the roadside machine (A) 5 is subjected to image processing in the image processing unit 6 (step B1), and based on the processed image data, the roadside control unit 7 determines whether there is a dangerous vehicle entering the intersection 1 Is determined (step B2). When it is determined that there is no dangerous vehicle, the image processing of the roadside camera (A) 9 is continued.

  Data indicating the vehicle ID number of the own vehicle (hereinafter, all ID numbers are abbreviated as ID), the vehicle traveling direction, and the blinker information is constantly transmitted from the right turn vehicle 20 (step C1). Here, as the vehicle traveling direction, information data of route guidance by the navigation device 26 of the right turn vehicle 20 is used, and when the vehicle turns right, it can be known from which road to which road. Further, data from the turn signal switch 24 is used as the blinker information. The roadside machine (A) 5 receives the data from the right turn vehicle 20 and recognizes that the right turn vehicle 20 is stopped on the intersection 1 in order to make a right turn from the horizontal road 2 to the vertical road 3. (Step B3).

  The roadside machine (A) 5 has a right-turn vehicle 20 stopped at the intersection 1 and travels on the opposite lane to the right-turn vehicle 20 and passes through between the vehicles and enters the intersection 1 (motorcycle). ) 41 is recognized, the danger notification data is transmitted to the right turn vehicle 20 together with the vehicle ID of the right turn vehicle 20 from the roadside radio unit 8 (step B4). After confirming that the vehicle ID matches that of the own vehicle, the right turn vehicle 20 that has received the danger notification data from the roadside machine (A) 5 is displayed on the opposite lane on a display device (not shown) of the navigation device 26. A display for notifying the driver that there is a dangerous vehicle 41 entering the intersection 1 is performed (step C2). This is performed according to the method disclosed in the above-mentioned prior art publication.

  Further, the roadside machine (A) 5 transmits the danger notification data together with its own roadside machine ID to the roadside machine (B) 10 (step B5). The roadside machine (B) 10 that has received the danger notice data via the roadside radio unit 13 transmits the danger notice data together with its own roadside machine ID to the roadside machine (C) 15 (step D1). The roadside machine (C) 15 that has received the notification transmits the danger notification data together with its own roadside machine ID to the roadside machine (D) 16 (step E1), and further, the roadside machine (C) that has received the danger notification data ( D) 16 transmits danger notification data to the roadside machine (E) 17 together with its own roadside machine ID (step F1). Finally, the roadside device (E) 17 that has received the danger notification data transmits the danger notification data together with its own roadside device ID to the traveling dangerous vehicle 41 (step G1). The received dangerous vehicle 41 displays on the display device 48 to inform the driver that there is the right turn vehicle 20 at the intersection 1 (step H1). This is also performed according to the method disclosed in the above-mentioned prior art publication.

  The dangerous vehicle 41 that has received the danger notification data from the roadside machine (E) 17 gives the roadside machine (E) 17 the turn signal information and the speed information (this book) together with the vehicle ID of the vehicle and the ID of the roadside machine (E) 17. The data indicating the vehicle state information of the invention is transmitted (step H2). Here, the data from the turn signal switch 45 is used as the blinker information, and the data from the speed sensor 47 is used as the speed information data. The roadside machine (E) 17 receives the information data from the dangerous vehicle 41 after confirming the roadside machine ID of the own machine, and together with the roadside machine ID of the own machine and the roadside machine ID of the roadside machine (D) 16, the roadside machine (D ) 16 (step G2), and these data are finally transmitted to the roadside machine (B) 10 and the roadside machine (A) 5 via (C) 15 (step F2, E2, D2).

  Next, the roadside machine (B) 10 transmits danger notification data together with its own roadside machine ID to nearby vehicles. In the present embodiment, the oncoming vehicles (A) 27 and (B) 34 located in the vicinity of the roadside machine (B) 10 receive the danger notification data from the roadside machine (B) 10 (steps D3 and D4). ). Each of the oncoming vehicles (A) 27 and (B) 34 that has received the danger notification data measures the reception sensitivity by the vehicle communication control units 30 and 37 (steps I1 and J1), and then between the two vehicles. The respective reception sensitivities are compared by communication (inter-vehicle communication), and a vehicle having the best reception sensitivity with the roadside machine (B) 10 is detected (step J2).

  In the inter-vehicle communication here, all the oncoming vehicles that have received the danger notification data from the roadside machine (B) 10 send the reception sensitivity data measured together with the vehicle ID of the own vehicle to other vehicles in the vicinity. To do. The oncoming vehicle that performed inter-vehicle communication can recognize the reception sensitivity of the other vehicle from the received reception sensitivity data, and by comparing these, all vehicles know the ID of the oncoming vehicle with the best reception sensitivity. be able to. In this embodiment, the reception sensitivity of the oncoming vehicle (A) 27 closest to the roadside machine (B) 10 is better than the reception sensitivity of the oncoming vehicle (B) 34, and the oncoming vehicle (A) 27 is the roadside machine (B). ) 10, the vehicle ID of the vehicle, the roadside device ID of the roadside machine (B) 10, and reply data notifying that the vehicle is the leading vehicle having the best reception sensitivity are transmitted (step I 3).

  In the inter-vehicle communication, even if the oncoming vehicle (A) 27 transmits the reception sensitivity data measured together with the vehicle ID of the own vehicle toward the vicinity, no data is received from other vehicles. It is judged that there is no vehicle other than the host vehicle on the opposite lane of the right turn vehicle 20, and the vehicle ID of the host vehicle and reply data informing that the host vehicle is the leading vehicle are sent to the roadside unit (B) 10. Send.

  When the roadside machine (B) 10 receives the return data from the oncoming vehicle (A) 27 after confirming the vehicle ID of the host vehicle (step D5), the roadside machine (B) 10 is the oncoming vehicle (A ) 27, the instruction data is transmitted together with the vehicle ID of the oncoming vehicle (A) 27, and the hazard 31 is turned on so that the right turn vehicle 20 is alerted to the dangerous vehicle 41 hidden from view. Alternatively, the passing operation of the headlight 33 (turning on the headlight 33 instantaneously with a high beam) is executed (step D6). The oncoming vehicle (A) 27 performs the lighting operation of the hazard 31 or the passing operation of the headlight 33 according to the transmission of the instruction data from the roadside machine (B) 10 (step I4). In Step D5, when no reply data is received that indicates that the roadside machine (B) 10 is the leading vehicle, it is determined that there is no oncoming vehicle on the oncoming lane of the right turn vehicle 20, and the sequence is finish.

  When the roadside machine (A) 5 detects that the dangerous vehicle 41 has passed the intersection 1 from the image of the intersection 1 taken by the roadside camera (A) 9, or the speed information from the speed sensor 47 of the dangerous vehicle 41 Based on the data, when it is detected that the dangerous vehicle 41 has stopped or when the turn signal switch 45 of the dangerous vehicle 41 is turned off from the left turn on state, it is detected that the dangerous vehicle 41 has completed the left turn. If the right turn at the intersection 1 of the right turn vehicle 20 is detected by the information data from the navigation device 26 of the right turn vehicle 20, the right turn vehicle 20 and the roadside machine (B) 10 are The cancellation notification data (danger notification) is transmitted together with the roadside device ID of the aircraft (steps B7 and B8).

  Receiving the release notification data, the roadside machine (B) 10 transmits the release notification data together with its own roadside machine ID to the roadside machine (C) 15 (step D7), and the roadside machines (D) 16, (E) 17 Finally, release notification data is transmitted to the dangerous vehicle 41 (steps E3, F3, G3). At the same time, the roadside machine (B) 10 also transmits release notification data to the oncoming vehicle (A) 27 together with its own roadside machine ID (step D8). As a result, the above-described operation of the vehicle danger notification system is canceled regardless of whether the oncoming vehicle (A) 27 is performing the passing of the headlight 33 or the like or whether the passing is being performed.

  According to the present embodiment, when the roadside machine (A) 5 detects that there is a right turn vehicle 20 and detects that there is a dangerous vehicle 41, the roadside machine (A) 5 sends the dangerous vehicle 41 to the right turn vehicle 20. In order to call attention, the roadside machine (B) 10 sends instruction data to the oncoming vehicle (A) 27 that is the leading vehicle among the oncoming vehicles that are hiding the dangerous vehicle 41 on the intersection 1 on the intersection 1. The oncoming vehicle (A) 27 performs the lighting operation of the hazard 31 or the passing operation of the headlight 33. As a result, since it can be seen that the dangerous vehicle 41 entering the intersection 1 is hidden behind the oncoming vehicle (A) 27 that has operated in some way, the driver of the right turn vehicle 20 can easily grasp the position of the dangerous vehicle 41. be able to.

  Further, when the roadside machine (A) 5 detects the right turn vehicle 20 and the dangerous vehicle 41, the roadside machine (A) 5 transmits data to the roadside machine (B) 10 to notify the danger and receives the notification from the roadside machine (A) 5. The roadside machine (B) 10 transmits danger notification data to a nearby vehicle, and executes the lighting operation of the hazard 31 or the passing operation of the headlight 33 with the vehicle having the best reception sensitivity as the leading vehicle. By doing so, the right vehicle 20 is urged to pay attention to the dangerous vehicle 41. Thereby, the roadside machine (B) 10 can search and operate the leading vehicle by a simple method.

The oncoming vehicles (A) 27 and (B) 34, which are located in the vicinity of the roadside machine (B) 10 and have received data from the roadside machine (B) 10, perform inter-vehicle communication with each other, and receive their respective reception sensitivities. To determine the vehicle having the best reception sensitivity. Thereby, in order to search for the leading vehicle, the roadside machine (B) 10 only needs to transmit the danger notification data to a vehicle located in the vicinity, and the roadside machine (B) 10 receives each oncoming vehicle (A) 27, (B). It is not necessary to compare the 34 reception sensitivities.
Moreover, the roadside machine (B) 10 can also perform risk avoidance from the dangerous vehicle 41 side by notifying the dangerous vehicle 41 that there is a right turn vehicle 20 on the intersection 1. Can make a right turn on intersection 1 more safely.

The roadside machine (A) 5 receives data indicating vehicle state information such as blinker information and speed information of the dangerous vehicle 41, and the hazard 31 of the oncoming vehicle (A) 27, which is the leading vehicle, based on the obtained vehicle state information. The lighting operation of or the passing operation of the headlight 33 is released. As a result, when the dangerous vehicle 41 completes a left turn, stops, etc., and the danger to the right turn vehicle 20 is eliminated, the warning to the right turn vehicle 20 is released, and the right turn vehicle 20 is wasted. It can prevent calling attention.
Further, the roadside machine (B) 10 activates the hazard 31 of the oncoming vehicle (A) 27 or passes the headlight 33 to urge the right turn vehicle 20 to pay attention to the dangerous vehicle 41. As a result, the right turn vehicle 20 can be alerted only by causing the oncoming vehicle (A) 27 to perform a simple operation.

<Other embodiments>
The present invention is not limited to the above-described embodiments, and can be modified or expanded as follows.
When it is detected that there is a right turn vehicle 20 at the intersection 1 and a dangerous vehicle 41 is detected, the roadside machine (A) 5 directly transmits instruction data to the oncoming vehicle (A) 27. Then, the lighting operation of the hazard 31 or the passing operation of the headlight 33 may be executed.
Further, the roadside device (B) 10 may directly transmit the danger notification data to the dangerous vehicle 41.
Further, in order to alert the right vehicle 20 to the danger vehicle 41, the oncoming vehicle (A) 27 can sound a horn instead of lighting the hazard 31 or passing the headlight 33, The room light may be turned on at night.
Further, the oncoming vehicles (A) 27 and (B) 34 that have received the danger notification data from the roadside machine (B) 10 notify the roadside machine (B) 10 of the reception sensitivity together with the vehicle ID, and the roadside machine (B ) 10 may determine the leading vehicle from the notification data received from the oncoming vehicles (A) 27 and (B) 34.

The top view which shows the structure and arrangement | positioning of the danger notification system for vehicles by embodiment of this invention Block diagram showing the configuration of the roadside machine (A) Block diagram showing the configuration of the roadside machine (B) Block diagram showing the configuration of roadside machines (C) to (E) Block diagram showing the configuration of a right turn vehicle Block diagram showing the configuration of the oncoming vehicle (A) Block diagram showing the configuration of the oncoming vehicle (B) Block diagram showing configuration of dangerous vehicle Sequence showing operation method of vehicle danger notification system according to this embodiment

Explanation of symbols

  In the drawings, 1 is an intersection, 5 is a roadside machine (A), 6 is an image processing unit, 7 is a roadside control unit, 8 and 13 are roadside radio units, 9 is a roadside camera (A), and 10 is a roadside machine (B). , 20 is a right turn vehicle, 26 is a navigation device, 27 is an oncoming vehicle (A), 31 is a hazard, 33 is a headlight, 34 is an oncoming vehicle (B), and 41 is a dangerous vehicle.

Claims (6)

A right turn vehicle detection means for receiving data from a vehicle on the intersection and detecting a right turn vehicle on the intersection;
An intersection photographing means for photographing the intersection;
An approaching vehicle detection means for detecting a vehicle traveling on the opposite lane to the right turn vehicle and entering the intersection by processing an image by the intersection photographing means;
When the right turn vehicle detection means detects that there is the right turn vehicle, and the approach vehicle detection means detects that the approach vehicle is present, the right turn vehicle is urged to pay attention to the approach vehicle. Therefore, a danger notification means for operating the leading vehicle by transmitting data to the leading vehicle among the vehicles that are concealing the approaching vehicle for the right turn vehicle by being aligned with the approaching vehicle on the intersection. A vehicle danger notification system characterized by comprising the above.   The right turn vehicle detection means and the approaching vehicle detection means are connected to a camera and have a communication device, and are a first roadside machine provided at the intersection, and the danger notification means hides the approaching vehicle. A second roadside machine installed in the vicinity of the leading vehicle and equipped with a communication device. When the first roadside machine detects the right turn vehicle and the approaching vehicle, the second roadside machine receives data from the second roadside machine. The second roadside machine that has received the notification from the first roadside machine transmits data to a vehicle located nearby, and the vehicle having the best reception sensitivity is designated as the leading vehicle. The danger notification system for a vehicle according to claim 1, wherein the right notice vehicle is urged to be alerted to the approaching vehicle.   A plurality of vehicles that are located in the vicinity of the second roadside machine and that have received data from the second roadside machine perform vehicle-to-vehicle communication with each other and compare the respective reception sensitivities, so that the vehicle having the best reception sensitivity. The vehicle having the best reception sensitivity transmits data so as to notify the second roadside machine that the vehicle has the best reception sensitivity, and the second road side 3. The vehicle danger notification system according to claim 2, wherein the machine urges the right turn vehicle to be aware of the approaching vehicle by operating a vehicle that has issued a notification that reception sensitivity is good.   4. The vehicle according to claim 2, wherein the second roadside machine transmits data directly or indirectly to the approaching vehicle to notify that the right-turn vehicle is on the intersection. Hazard notification system.   The first roadside unit receives data indicating vehicle state information of the approaching vehicle, and releases the operation of the leading vehicle based on the obtained vehicle state information. The vehicle danger notification system according to any one of the above.   The vehicle according to any one of claims 2 to 5, wherein the second roadside unit urges the right-turn vehicle to pay attention to the approaching vehicle by passing a headlight of the leading vehicle. Hazard notification system.

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