JP2018160054A - Broadcasting station device and on-vehicle receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To propose a new method for efficiently and finely performing attention-calling with respect to a vehicle traveling in the circumference of a reversely traveling vehicle on a superhighway.SOLUTION: A broadcasting device 3 for broadcasting information related to a reversely traveling vehicle that is reversely traveling on a superhighway includes an information acquisition section 3a, a data generation section 3b, and a broadcasting data transmission section 3c. The information acquisition section 3a acquires reverse-traveling information related to a reversely traveling vehicle from an external system. The data generation section 3b generates attention-calling data on the basis of reverse-traveling information acquired by the information acquisition section 3a. The attention-calling data includes: text reading data to be reproduced on a side of an on-vehicle receiver for receiving V-low multi-media broadcasting; directional information for designating a traveling direction on a superhighway; and area information for designating a reproduction area of text reading data. The broadcasting data transmission section 3c transmits attention-calling data generated by the data generation section 3b by V-low multi-media broadcasting.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a broadcasting station apparatus and a vehicle-mounted receiver, and more particularly, to a countermeasure against reverse running on a highway.

  In recent years, the number of collision accidents caused by reverse running vehicles running on highways is increasing, and various methods have been proposed as measures to prevent this. For example, Patent Document 1 collects information on the travel locus of a vehicle, performs dangerous travel determination (reverse travel determination) of the vehicle based on the information, and provides dangerous information that provides warning information to this vehicle and surrounding vehicles. An information providing apparatus is disclosed. In this information providing apparatus, first, the road section and lane on which the vehicle has traveled are identified based on the vehicle trajectory data (road matching). Next, it is detected whether or not the traveling direction of the lane in the road section specified by the road matching matches the traveling direction of the vehicle. And when it is a reverse direction, it determines with this vehicle carrying out reverse driving | running | working. Based on the determination result, there is a reverse traveling vehicle with respect to a vehicle that exists in the vicinity of the vehicle that is traveling backward, or a vehicle that is traveling forward on this road toward the backward traveling vehicle. Warning information is notified. As a notification method, it is described that an emergency signal is transmitted from a ground processing center to a communication device of an in-vehicle device.

  Patent Document 2 discloses a reverse running vehicle detection system that detects a reverse running vehicle that reversely moves in and out, gives a warning, and notifies the vehicle that normally enters the presence of the reverse running vehicle. ing. Specifically, a roadside radio device for detecting and warning a reverse running vehicle is installed on the approach path of the rest facility. When the vehicle passes, the in-vehicle wireless device performs road-to-vehicle communication, and the discrimination information indicating that the vehicle has entered is written in the storage unit of the in-vehicle wireless device. When the vehicle tries to enter the approach road again, the roadside wireless device performs road-to-vehicle communication with the in-vehicle wireless device, and when there is discrimination information, the roadside wireless device determines that the vehicle is running backward. And the onboard equipment instruction | indication information which shows a warning is transmitted with respect to a vehicle-mounted wireless device. Further, the presence of the reverse running vehicle is notified to the roadside radio device for reverse running vehicle notification. The roadside radio device for notifying the reverse running vehicle notified of the presence of the reverse running vehicle performs road-to-vehicle communication with the in-vehicle wireless device of the passing vehicle, and transmits onboard equipment instruction information that warns that the reverse running vehicle exists. .

Patent Document 3 discloses road-to-vehicle communication that warns or warns a reverse running vehicle and a vehicle traveling on the main line when there is a vehicle that is extremely likely to run backward on a one-way street such as a toll road. A system is disclosed. In this system, a first roadside wireless device for providing entrance gate passage information indicating that the vehicle has entered the toll road is provided on the inflow ramp of the toll road for a vehicle passing through the communicable range. A second roadside wireless device that acquires the entrance gate passage information given by the first roadside wireless device from a vehicle that passes through the communicable range is provided on the outflow ramp of the toll road. Then, the second roadside apparatus having the function as the management apparatus determines whether or not the entrance gate passage information is acquired from the passing vehicle. If the entrance gate passage information is not acquired, the second roadside wireless device reversely travels to this vehicle. Provides reverse running warning information to warn you that

  Patent Document 4 discloses a traffic information notification system that effectively and efficiently notifies a notification target of a traveling state of a target vehicle in a reverse running state. In this system, first, a target vehicle position, which is a position where the target vehicle exists, is specified. Next, at the target vehicle position, road information including information on the traffic classification indicating the traveling direction designated for the road is acquired. In addition, traveling information including information on a traveling direction that is a direction in which the target vehicle travels is acquired for the traffic classification. Then, based on the road information, the travel information, and the reverse running determination condition defined in advance, it is determined whether or not the running state of the target vehicle is the reverse running state. When it is determined that the target vehicle is in the reverse running state, the driving state information that is the information indicating the driving state is transmitted to the notification target every time a predetermined notification condition is satisfied based on the driving information of the target vehicle. The

JP 2009-140008 JP 2009-1400343 A JP 2009-151567 A JP 2013-122659 A

  An object of the present invention is to propose a novel method for efficiently and finely alerting a vehicle traveling around a reverse traveling vehicle on a highway.

  In order to solve such a problem, the first invention has an information acquisition unit, a data generation unit, and a broadcast data transmission unit, and broadcasts information related to a reverse vehicle traveling backward on a highway. A station apparatus is provided. The information acquisition unit acquires reverse running information regarding the reverse running vehicle from an external system. A data generation part produces | generates alerting data based on the reverse running information acquired by the information acquisition part. This alert data includes text-reading data to be played back on the in-vehicle receiver that receives the multimedia broadcast, direction information that specifies the traveling direction of the expressway, and area information that specifies the playback area of the text-reading data. And have. The broadcast data transmission unit transmits the alert data generated by the data generation unit through multimedia broadcasting.

  Here, in the first invention, the data generation unit includes, as the alert data, text reading data for warning that a reverse running vehicle exists, and the traveling direction of the highway is opposite to that of the reverse running vehicle. It is preferable to generate first alert data having direction information for designating a direction and area information for designating a reproduction area of text-read data.

  Further, in the first invention, the data generation unit, as the alert data, reads text data for prompting confirmation whether the host vehicle is running backward, and the traveling direction of the highway is the same as that of the running vehicle. You may produce | generate the 2nd alert data which has the direction information which designates that it is a direction, and the area information which designates the reproduction | regeneration area of text reading data.

  A second invention provides an in-vehicle receiver that has a broadcast data receiving unit, an area determination unit, and a text reading data reproduction unit, and receives multimedia broadcasting. The broadcast data receiving unit receives a multimedia broadcast including alert data. The alert data includes text reading data, direction information for designating the traveling direction of the expressway, and area information for designating a reproduction area of the text reading data. The area determination unit determines whether the alert data specified by the direction information and the area information is addressed to the own vehicle based on the current position of the own vehicle and the traveling direction of the expressway. The text reading data reproduction unit reproduces the text reading data included in the alert data when it is determined that the alert data is addressed to the own vehicle.

  Here, in the second invention, the alert data specifies the text reading data that warns that there is a reverse running vehicle, and that the traveling direction of the highway is opposite to the reverse running vehicle. It is preferable that the first alert data includes direction information to be performed and area information for designating a reproduction area of the text reading data.

  Further, in the second invention, the above alert data specifies text-reading data for prompting confirmation of whether or not the host vehicle is running backward, and specifies that the traveling direction of the expressway is the same as that of the traveling vehicle. The second alert data may include direction information to be read and area information for designating a reproduction area of the text reading data.

  According to the present invention, by utilizing multimedia broadcasting, alert data is broadcast to a traveling vehicle around the area where the reverse traveling vehicle exists, so that the surrounding traveling vehicle is efficiently alerted. be able to. In addition, since the alert data includes direction information that specifies the driving direction of the expressway and area information that specifies the playback area of the text reading data, the text reading that is played back on the in-vehicle receiver side is included. The above data can be specified and distributed in detail according to the direction and area of the expressway.

Overall configuration of reverse-running vehicle broadcast system Conceptual diagram of reversing car alert Block diagram of broadcasting station equipment Map illustration In-vehicle receiver block diagram

  FIG. 1 is an overall configuration diagram of a reverse traveling vehicle broadcast system according to the present embodiment. This reverse-running vehicle broadcast system 1 uses multimedia broadcasting to alert a vehicle traveling around the reverse-running vehicle when a vehicle traveling on an expressway runs backward. .

  In the present embodiment, V-low multimedia broadcast, which is one of multimedia broadcasts, is used as an example. V-low multimedia broadcasting uses a frequency band from 1 to 3 channels (commonly known as VHF-Low band) in the VHF band that has become blank due to the end of analog television broadcasting. For example, it is one of multimedia broadcasts for sending information to a smartphone or a car navigation system. The features of this broadcast are that it can distribute information different for each route and area by digital broadcasting, that it is a completely new medium that can integrate broadcasting and communication, and that digital data is broadcasted using the same protocol (IP) as communication. For example, it can be transmitted on board, can be broadcast simultaneously with high congestion, and has high compatibility with automobiles due to radio. Also, taking advantage of the boundary area between broadcasting and communication, “download using broadcast waves”, “5.1 channel surround broadcasting”, “reliable and safe information transmission”, “IPDC (IP DataCast)” ( In other words, it is possible to provide services such as “digital signage” and a “broadcasting service that broadcasts packets on broadcast waves, which are common in the world of communication including the conventional Internet”.

  The reverse traveling vehicle broadcast system 1 is mainly composed of a road manager device 2, a broadcast station device 3, and an in-vehicle receiver 4. The road manager device 2 detects a reverse running vehicle that runs backward on the highway. There are various reverse vehicle detection methods, and any method can be widely used. Typically, the car navigation device mounted on the reverse running vehicle detects the reverse running and notifies the road manager device 2 as road-to-vehicle information and the reverse running by a sensor installed on the expressway. The form etc. which detect and notify to the road administrator apparatus 2 are assumed. When the road manager device 2 detects the presence of the reverse running vehicle, the road manager device 2 transmits the reverse running information specifying the detection position of the reverse running vehicle to the broadcasting station device 3.

  Based on the reverse running information acquired from the road manager device 2, the broadcasting station device 3 generates warning data for calling attention to the vehicle running around the reverse running vehicle, and this is generated as V -Send by low multimedia broadcast. In order to avoid a collision with a reverse running vehicle, this warning data should include at least the first warning data that runs in the opposite direction to the reverse running vehicle. In order to prompt confirmation of whether or not the vehicle is running backward, second warning data that travels in the same direction as the backward running vehicle may be included.

  The in-vehicle receiver 4 receives the V-low multimedia broadcast including the alert data, and when the alert data is addressed to the own vehicle, the text-reading data (TTS: Text to Play (Speech) as audio. This alerts the driver of the vehicle traveling around the reverse running vehicle. The in-vehicle receiver 4 is mounted on each vehicle, and for example, a car navigation device corresponding to V-low multimedia broadcasting, a tuner device, a portable terminal device in which specific application software is installed, and the like can be used. .

  FIG. 2 is a conceptual diagram for alerting a reverse running vehicle. The alerting of traveling vehicles around the reverse running vehicle is reverse to the forward running vehicle that may encounter the reverse running vehicle by adding the traveling direction to the detected traveling position (latitude and longitude) of the reverse running vehicle. The content differs between the traveling vehicle and the vehicle traveling in the same direction. That is, in the former, the text reading data TTS1 is read out, and a warning is given that there is a possibility that a reverse running vehicle exists and is encountered. On the other hand, in the latter case, the text reading data TTS2 different from the text reading data TTS1 is read out, and confirmation is made as to whether or not the host vehicle is running backward.

  FIG. 3 is a block diagram of the broadcast station apparatus 3. The broadcast station apparatus 3 includes an information acquisition unit 3a, a data generation unit 3b, a broadcast data transmission unit 3c, and a map storage unit 3d. The information acquisition unit 3a acquires reverse running information about the reverse running vehicle from the road manager device 2 that is an external system. The data generation unit 3b generates alert data based on the reverse running information acquired by the information acquisition unit 3a. The alert data includes text-read data TTS1 (or TTS2) to be reproduced on the in-vehicle receiver 4 that receives the V-low multimedia broadcast, direction information that specifies the traveling direction of the expressway, and text-read And area information for designating a data reproduction area. The reproduction area is designated based on a map (map) stored in the map storage unit 3d. The broadcast data transmission unit 3c transmits the alert data generated by the data generation unit 3b by V-low multimedia broadcast.

  FIG. 4 is an explanatory diagram of a map stored in the map storage unit 3d. This map is divided vertically and horizontally and is composed of a large number of areas (mesh) arranged in a two-dimensional direction, and an area code is assigned to each area. Here, the area code is an identifier that designates an area that divides the broadcasting area of digital broadcasting. As the area code, for example, a prefecture code (JIS X0401), a municipal code (JIS X0402), a JMA code (meteorological agency disaster prevention information XML format “meteorological information / prefecture forecast zone / subdivision zone”, etc.), secondary mesh code (JIS X 0410) Regional mesh codes), tertiary mesh codes (JIS X 0410 regional mesh codes), quarter regional mesh codes (JIS X 0410 regional mesh codes), and postal codes can be used in combination. As a result, the information presented to the viewer can be finely specified by the area code.

  In the example shown in the figure, the route of the expressway A is an area (A2, B2, C3, D3 to D6, E6, F6, G6, H6). When a reverse vehicle is detected at the position B on the expressway A, the area to be alerted is a predetermined distance from the position B, that is, the areas (B2, C3, D3 to D6, E6) , F6) is set. Accordingly, as the first alert data described above, the text reading data TTS1, the direction information designating that the traveling direction of the highway A is the reverse direction of the reverse traveling vehicle, and the area information (B2, C3, D3-D6, E6, F6) are generated. At the same time, as the above-mentioned second alert data, the text reading data TTS2, direction information designating that the traveling direction of the highway A is the same direction as the reverse traveling vehicle, and area information (B2, C3, A data set with D3-D6, E6, F6) is generated. In addition, the 1st and 2nd alerting data may include the information regarding the detection position of a reverse running vehicle.

  FIG. 5 is a block diagram of the in-vehicle receiver 4. The in-vehicle receiver 4 includes a broadcast data reception unit 4a, a GPS device 4b, an area determination unit 4c, a TTS reproduction unit 4d, and a map storage unit 4e. The broadcast data receiving unit 4a receives the V-low multimedia broadcast including the above-described alert data. The GPS device 4b specifies the position (latitude and longitude) of the host vehicle based on the global positioning system.

  The area determination unit 4c determines whether the alert data specified by the direction information and the area information is addressed to the own vehicle based on the current position of the own vehicle and the traveling direction of the expressway. . The current position of the host vehicle and the traveling direction of the expressway can be specified based on, for example, the output of the GPS device 4b (the position of the host vehicle) and the map (see FIG. 4) stored in the map storage unit 4b. it can. In this case, the temporal change in the position of the host vehicle on the map divided for each area is compared with the order of passing through the highway on the map divided for each area.

  For example, in FIG. 4, when the own vehicle C reaches the area D5 via the area (H2 → G6 → F6 → E6 → D6), the movement of the own vehicle C is the route of the highway A (H2 → G6 → F6 → E6). → D6), it is determined that the host vehicle C is traveling on the highway A. In this case, since the host vehicle C is traveling toward the reverse vehicle B, it is determined that the first alert data is addressed to the host vehicle.

  Further, when the vehicle C reaches the area D5 via the area (B2-> C2-> C3-> D3-> D4), the movement of the host vehicle C matches the route of the highway A (B2-> C2-> C3-> D3-> D4). Therefore, it is determined that the host vehicle C is traveling on the highway A. In this case, since the own vehicle C is traveling in the same direction as the reverse traveling vehicle B, it is determined that the second alert data is addressed to the own vehicle.

  On the other hand, when the movement of the own vehicle C does not coincide with the route of the highway A, the own vehicle C moves along the highway A even if the own vehicle C exists in an area including the highway (for example, D5). It is determined that the vehicle is not running. As a result, it is determined that none of the first and second alert data is destined for the host vehicle.

  When it is determined that the alert data is addressed to the own vehicle, the TTS reproducing unit 4d reads out the text reading data included in the alert data addressed to the own vehicle by voice. Text reading is performed immediately as data is received. This alerts the driver driving the vehicle.

  As described above, in this embodiment, the broadcast station apparatus 3 uses V-low multimedia broadcast, which is one of multimedia broadcasts, to alert a traveling vehicle around an area where a reverse traveling vehicle exists. By broadcasting the data, it is possible to efficiently alert the surrounding vehicles. This alerting data includes direction information for designating the traveling direction of the expressway and area information for designating a reproduction area of the text reading data. In the vehicle equipped with the on-vehicle receiver 4, the received alerting data is selected based on these pieces of information. As a result, for a vehicle traveling on the highway toward the reverse running vehicle, a warning is given by the text reading data TTS1, and for a vehicle traveling on the highway in the same direction as the reverse running vehicle, the text reading is performed. While alerting by the upper data TTS2 is performed, alerting is not performed in other vehicles. According to the present embodiment, text read-out data reproduced on the in-vehicle receiver 4 side can be finely specified / distributed for each driving direction and area of the expressway, and is extremely effective as a countermeasure against reverse running. .

  In addition, according to the present embodiment, since it is not necessary to additionally install an infrastructure in an area where broadcast can be received, there is also an effect that the cost required for counter-travel vehicle measures can be suppressed.

  In the above-described embodiment, the delivery example of the two data called the first and second alert data has been described. However, the present invention is not limited to this, and the playback area is set more finely. A larger number of alert data may be distributed. For example, different alert data is distributed according to the distance from the reverse traveling vehicle in the same traveling direction.

  In the above-described embodiment, an example in which the VHF-Low band is used as multimedia broadcasting has been described, but it goes without saying that the VHF-High band can be used instead.

DESCRIPTION OF SYMBOLS 1 Reverse traveling vehicle broadcast system 2 Road manager apparatus 3 Broadcast station apparatus 3a Information acquisition part 3b Data generation part 3c Broadcast data transmission part 3d Map storage part 4 Car-mounted receiver 4a Broadcast data reception part 4b GPS apparatus 4c Area determination part 4d TTS playback unit 4e Map storage unit

Claims (6)

In a broadcasting station device that broadcasts information about a reverse-traveling vehicle traveling backward on a highway,
An information acquisition unit for acquiring reverse running information regarding the reverse running vehicle from an external system;
Based on the reverse running information acquired by the information acquisition unit, the text reading data to be reproduced on the in-vehicle receiver side that receives the multimedia broadcast, the direction information that specifies the traveling direction of the expressway, and the text A data generation unit for generating alert data having area information for designating a reproduction area of reading data;
A broadcast station apparatus, comprising: a broadcast data transmission unit that transmits the alert data generated by the data generation unit by multimedia broadcast.   The data generation unit designates, as the alert data, text reading data for warning that the reverse running vehicle exists, and that the traveling direction of the highway is opposite to the reverse running vehicle. The broadcast station apparatus according to claim 1, wherein first alerting data including direction information and area information designating a reproduction area of the text-read data is generated.   The data generation unit designates, as the alert data, text reading data that prompts confirmation of whether or not the host vehicle is running backward and that the traveling direction of the highway is the same direction as the traveling vehicle. The broadcasting station apparatus according to claim 1 or 2, wherein second alerting data including direction information and area information for designating a reproduction area of the text-read data is generated. In an in-vehicle receiver that receives multimedia broadcasts,
Broadcast data reception for receiving a multimedia broadcast including text-reading data, direction information designating a traveling direction of an expressway and area information designating a reproduction area of the text-reading data And
An area determination unit that determines whether the alert data specified by the direction information and the area information is addressed to the own vehicle based on a current position of the own vehicle and a traveling direction of the expressway;
A vehicle-mounted receiver comprising: a text reading data reproduction unit that reproduces the text reading data included in the alert data when it is determined that the warning data is addressed to the own vehicle.   The alert data includes text-reading data for warning that the reverse running vehicle exists, direction information for designating that the traveling direction of the highway is opposite to the reverse running vehicle, and the text 5. The on-vehicle receiver according to claim 4, wherein the on-vehicle receiver is first alerting data having area information for designating a reproduction area of reading data.   The alert data includes text-reading data for prompting confirmation of whether the host vehicle is running backward, direction information designating that the traveling direction of the highway is the same direction as the running vehicle, and the text 6. The in-vehicle receiver according to claim 4, wherein the on-vehicle receiver is second alert data having area information for designating a reproduction area of reading data.

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