JP2003296886A - System for alarming presence/absence of crossing pedestrian to passing vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To surely prevent a collision with a crossing pedestrian by recognizing the presence/absence of the crossing pedestrian at a place to be in the dead angle of a stopped vehicle viewing from a passing vehicle side beforehand at the time of passing the stopped vehicle from behind. <P>SOLUTION: A system comprises a road side detector (crossing pedestrian detection sensor 11, crossing pedestrian detection judgement processing part and transmitter 13) 1 for detecting the presence/absence of the crossing pedestrian TA within a detection range OB on a road RD to be in the dead angle at least on the front side of a route bus V1 viewing from the side of a succeeding vehicle 2 trying to pass the route bus V1 stopped on the road RD from the behind, and on-bus equipment (receiver 21 and on-vehicle type information providing device 22) 2 for providing attention arousing information regarding the crossing pedestrian for the succeeding vehicle from the rear part side of the route bus in the case that it is detected that the crossing pedestrian TA is present within the detection range OB by the road side detector 1. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crossing pedestrian warning system for an overtaking vehicle, and particularly to CCTV image processing, crossing pedestrian detection by a sensor such as a laser, wireless communication to an information providing device, and on-board method. The present invention relates to a danger warning system in which an information providing device is combined, for example, a system that detects a pedestrian crossing just before a route bus stopped at a bus stop and gives a warning of the presence or absence of a pedestrian crossing to a vehicle passing behind the route bus.

[0002]

2. Description of the Related Art When passing a stopped vehicle (stopped vehicle) on a road, the front side of the stopped vehicle becomes a blind spot when seen from a succeeding vehicle (overtaking vehicle) on the overtaking side. For this reason,
Even if there is a pedestrian (crossing pedestrian) trying to cross the road at the blind spot, it is difficult to visually recognize the crossing pedestrian from the overtaking vehicle side. In some cases, it may cause a collision with a pedestrian crossing.

[0003] This tendency is that the stopped vehicle is a route bus that is temporarily stopped at a bus stop, a shuttle bus that is stopped at a pick-up place in a kindergarten, and a delivery truck such as a courier truck that is stopped by unloading delivery items such as home delivery items. , Or in the case of large vehicles such as construction vehicles that are stopped due to road construction, the range of the blind spot becomes larger in proportion to the size (vehicle width, vehicle height, etc.) than ordinary vehicles. It will be noticeable. FIG. 4 schematically illustrates this situation, and exemplifies a case where a traffic accident with a crossing pedestrian PS is caused when a following vehicle V2 behind the route bus V1 stopped at a bus stop BS overtakes it. (The arrow D1 in the figure indicates the vehicle traveling direction, and the arrow D2 indicates the transverse direction).

In order to avoid the above-mentioned collision with a pedestrian, the driver of an overtaking vehicle must confirm the safety of the pedestrian by temporarily stopping immediately before overtaking and then overtaking. In addition, in the case of a route bus that is temporarily stopped at a bus stop, in order to call attention to pedestrians in front of it (in this case, passengers of the route bus are also included in addition to general travelers) In some cases, measures such as broadcasting in-vehicle broadcasting may be implemented.

[0005]

In any case, however, there is a current method of finally relying on the judgment of the driver on the overtaking vehicle side to overtake the stopped vehicle such as a route bus. However, some drivers have inadvertently forgotten or neglected to confirm the safety of pedestrians.

The present invention has been made in consideration of such conventional circumstances. When attempting to overtake a stopped vehicle from the rear of the vehicle, the blind spot of the stopped vehicle when viewed from the overtaking vehicle side. The purpose is to recognize in advance whether or not there are pedestrians crossing the road, and to more reliably prevent collisions with pedestrians.

[0007]

In order to achieve the above object, in the system for warning the presence or absence of pedestrians crossing an overtaking vehicle according to the invention as defined in claim 1, a stopped vehicle stopped on a road is A detection range that covers at least the peripheral area on the road that is a blind spot in front of the stopped vehicle when viewed from the overtaking vehicle side is set in advance, and the pedestrian crossing within the detection range is set. Detection means for detecting the presence or absence,
When the detection means detects that there is the crossing pedestrian within the detection range, the information providing means for providing attention information to the crossing pedestrian from the stopped vehicle side to the overtaking vehicle side is provided. It is characterized by that.

According to a second aspect of the present invention, there is provided a pedestrian presence / absence warning system for an overtaking vehicle according to the first aspect of the invention, wherein the detecting means is a predetermined roadside capable of detecting a detection range on the road. It is installed in a place and the information providing means is
It is characterized in that it is mounted on the stopped vehicle.

According to a third aspect of the present invention, there is provided a pedestrian presence / absence warning system for an overtaking vehicle according to the first aspect of the present invention, wherein the detecting means and the information providing means are both mounted on the stopped vehicle. It is characterized by

According to a fourth aspect of the present invention, there is provided a crossing pedestrian presence / absence warning system for an overtaking vehicle according to the first aspect of the invention, wherein the stopped vehicle is a route bus and the detection means is the route. The information providing means is installed near a bus stop of the bus, and is mounted on the route bus.

According to a fifth aspect of the present invention, there is provided a pedestrian presence / absence warning system for an overtaking vehicle according to the fourth aspect of the present invention, wherein the detection means includes a sensor for detecting a detection range on the road. A processing unit that determines the presence or absence of a pedestrian in the detection range based on the information detected by the sensor,
When the processing unit determines that the crossing pedestrian is present, the transmission unit wirelessly transmits the detection information to that effect to the stopped vehicle side, and the information providing unit includes the detection information from the transmission device. A receiving device for receiving, and a vehicle-mounted information providing device that presents the detection information from the receiving device as warning information to the crossing pedestrian so that the driver of the overtaking vehicle can visually recognize it on the rear side of the route bus. ing.

A crossing pedestrian presence / absence warning system for an overtaking vehicle according to a sixth aspect of the present invention is the invention according to the first aspect, which comprises the route bus, and the detecting means and the information providing means are both Is also mounted on the route bus.

According to a seventh aspect of the present invention, there is provided a method for warning the presence or absence of a pedestrian crossing to an overtaking vehicle, at least from the viewpoint of an overtaking vehicle attempting to overtake a stopped vehicle on the road from behind. The detection range that covers the peripheral area on the road that becomes a blind spot in front of the stopped vehicle is set in advance, and the presence or absence of a pedestrian in the detection range is detected. When it is detected that there is a pedestrian crossing, the warning information for the pedestrian crossing is provided from the stopped vehicle side to the overtaking vehicle side.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a pedestrian presence / absence warning system for an overtaking vehicle according to the present invention will be described below with reference to FIGS.
It will be specifically described with reference to.

FIG. 1 is a schematic diagram of a system for warning the presence or absence of pedestrians crossing an overtaking vehicle according to the present embodiment, FIG. 2 is a diagram showing a configuration example thereof, and FIG. 3 is a diagram showing a part of its processing sequence. .

As shown in FIG. 1 and FIG. 2, the crossing pedestrian presence / absence warning system for an overtaking vehicle according to this embodiment is a roadside detection as a detection means of the present invention installed around a bus stop of a route bus BU. It is composed of a device 1 and a bus vehicle-mounted device 2 as an information providing means of the present invention, which is mounted on a route bus BU (arrow D1 in FIG. 1 is a vehicle traveling direction, and arrow D2 is a crossing direction of a crossing pedestrian TA). Respectively).

The roadside detection device 1 has a blind spot at least at the front side of the route bus V1 when seen from the side of the following vehicle V2 attempting to overtake the route bus (stopped vehicle) V1 stopped at the bus stop BU from behind. A detection range OB intended for the peripheral area on the RD is set in advance, and the presence or absence of a crossing pedestrian TA within the detection range OB is detected.

In the example shown in FIGS. 1 and 2, the roadside detection device 1 detects a crossing pedestrian detection sensor (hereinafter, abbreviated as “sensor”) 11 for detecting a detection range OB on the road RD.
And a crossing pedestrian detection determination processing unit (hereinafter abbreviated as “processing unit”) 12 that determines the presence or absence of a crossing pedestrian TA within the detection range OB based on the detection signal S1 from the sensor 11.
When it is determined by the processing unit 12 that there is a pedestrian crossing, a transmission device 13 having a wireless communication antenna 13a that transmits a detection signal S2 to that effect to the route bus V2 side as a radio wave of a predetermined frequency is provided.

The sensor 11 is, for example, a CCTV for monitoring.
(Closed Circuit Television
n) Any type of sensor can be applied as long as it can detect the presence or absence of a pedestrian within a predetermined range, such as an image processing device and a laser device. The sensor 11 is installed in the vicinity of the bus stop BU at a location where the preset detection range OB can be detected in front of the stopped route bus V1 and sends the detection signal S1 to the processing unit 12.

The processing unit 12 is, for example, a processor (CP
U), a memory (RAM / RAM), etc. are incorporated, and the processor executes a preset processing program (object detection program according to the type of the sensor 11) on the memory. An example of this processing sequence is shown in FIG. That is, in this processing unit 12, the detection signal S1 from the sensor 11 is input by the program execution processing by the processor, and it is determined whether or not there is a pedestrian TA in the detection range OB based on the detection signal S1. When the processing is executed and it is determined that there is a crossing pedestrian TA, the detection signal S2 is transmitted via the transmission device 13 to the route bus V.
Send to the in-vehicle bus device 2 on the first side (steps St1 to St)
4).

When the bus vehicle-mounted device 2 detects that there is a crossing pedestrian TA within the detection range OB from the roadside detection device 2, it alerts the crossing pedestrian TA from the route bus V1 side to the following vehicle V2 side. It provides information.

In the example shown in FIGS. 1 and 2, the on-vehicle bus device 2 includes a receiving device 21 having a wireless communication antenna 21a for receiving a radio wave carrying the detection signal S2 from the transmitting device 13, and the receiving device 21. Based on the detection signal S2 from the route bus V as cautionary information for crossing pedestrian TA
The vehicle-mounted information providing device 22 presents the driver of the following vehicle V1 visually on the rear side of the first vehicle.

Of these, the in-vehicle type information providing device 22 includes a processing unit (processor, memory, etc.) and an information display plate (having a display unit such as liquid crystal) in a unit that can be installed on the rear side of the route bus V1, for example. With the installed configuration, when receiving the detection signal S2 from the reception device 21, attention information to the pedestrian TA for the following vehicle V2 preset in the processing unit,
For example, it is possible to display a danger warning message such as "Caution for crossing pedestrians" on the screen on the information display board.

According to the above structure, the roadside detection device 1 detects the presence or absence of a pedestrian in the detection range on the road RD which is a blind spot in front of the route bus BU, and the pedestrian is detected within the detection range. If it is detected that there is a crossing pedestrian traffic warning at the rear of the route bus V1 by the onboard device 2 of the bus.
Danger warning message such as is displayed as attention information.

Therefore, according to this embodiment, the route bus V
The driver of the succeeding vehicle V1 who attempts to pass 1 from the rear of the vehicle immediately recognizes the warning information and immediately selects the route bus B.
Since it is possible to recognize in advance that there is a crossing pedestrian TA who wants to cross from a place where the blind spot of U cannot be confirmed, it is possible to reliably avoid a collision accident with the crossing pedestrian TA when overtaking the route bus BU.

In the example of this embodiment, the detecting means is installed on the road side, but it may be installed as an on-vehicle device on the side of a stopped vehicle such as a route bus. In this case, in addition to the route bus as a stopped vehicle, a large vehicle (for example, a kindergarten shuttle bus, a courier truck, a construction vehicle, etc.) whose stop time is relatively long compared to a normal stop due to passenger changes or baggage loading / unloading, etc. Etc.) is also applicable.

It should be noted that the present invention is not limited to the above-described representative embodiments, and those skilled in the art will understand that
Based on the content of the claims, the invention can be modified and changed into various modes without departing from the spirit of the invention. These changes and modifications also belong to the scope of rights of the present invention.

[0028]

As described above, according to the present invention,
When attempting to overtake a stopped vehicle from behind, it is possible to recognize in advance whether there is a pedestrian or pedestrian at the blind spot of the stopped vehicle as seen from the overtaking vehicle side to prevent collision with the pedestrian. It is possible to provide a pedestrian presence / absence warning system for an overtaking vehicle that can be reliably achieved.

[Brief description of drawings]

FIG. 1 is a schematic diagram of a crossing pedestrian presence / absence warning system for an overtaking vehicle according to an embodiment of the present invention.

FIG. 2 is a schematic block diagram showing the overall configuration of a pedestrian presence / absence warning system for an overtaking vehicle.

FIG. 3 is a schematic flowchart showing a processing example of a roadside detection device.

FIG. 4 is a diagram illustrating a traffic accident situation of a crossing pedestrian and an overtaking vehicle (following vehicle) of a conventional route bus in a conventional example.

[Explanation of symbols]

1 Roadside detector 2 bus in-vehicle device 11 Crossing pedestrian detection sensor 12 Crossing pedestrian detection judgment processing unit 13 Transmitter 13a Wireless communication antenna (transmitter side) 21 Receiver 21a Wireless communication antenna (reception device side) 22 In-vehicle information providing device OB detection range

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) B60R 21/00 630 B60R 21/00 630G G08G 1/01 G08G 1/01 F (72) Inventor Masashi Masayoshi Tokyo 1-1-1, Shibaura, Minato-ku, Tokyo F-term in Toshiba Head Office (reference) 5H180 AA01 BB04 CC03 CC04 CC12 FF13 FF33 LL01 LL02 LL06 LL15

Claims (7)

[Claims] 1. A peripheral area on the road, which is a blind spot at least in front of the stopped vehicle when viewed from the overtaking vehicle side attempting to overtake the stopped vehicle stopped on the road from behind. A detection range is set in advance, and detection means for detecting the presence or absence of a pedestrian crossing within the detection range; and the stopped vehicle side when the detection means detects that there is a pedestrian crossing within the detection range To the overtaking vehicle, the information providing means for providing the attention information to the crossing pedestrian, and a crossing pedestrian warning system for an overtaking vehicle. 2. The detecting means is installed at a predetermined roadside location where the detection range on the road can be detected, and the information providing means is mounted on the stopped vehicle. Warning system for pedestrians crossing overtaking vehicles. 3. The detecting means and the information providing means,
The crossing pedestrian presence / absence warning system for an overtaking vehicle according to claim 1, wherein both are mounted on the stopped vehicle. 4. The stopped vehicle is constituted by a route bus, the detecting means is installed near a bus stop of the route bus, and the information providing means is mounted on the route bus. Item 1. A pedestrian presence / absence warning system for an overtaking vehicle according to Item 1. 5. The detection means includes a sensor for detecting a detection range on the road, a processing unit for determining the presence or absence of a pedestrian in the detection range based on information detected by the sensor, When the processing unit determines that the crossing pedestrian is present, the transmission unit wirelessly transmits detection information to that effect to the stopped vehicle side, and the information providing unit receives the detection information from the transmission device. And a vehicle-mounted information providing device that presents the detection information from the receiving device as warning information to the pedestrian crossing so that the driver of the overtaking vehicle can visually recognize it on the rear side of the route bus. The pedestrian presence / absence warning system for an overtaking vehicle according to claim 4. 6. The presence / absence of a pedestrian crossing an overtaking vehicle according to claim 1, wherein the presence / absence is constituted by the route bus, and the detecting means and the information providing means are both mounted on the route bus. Warning system. 7. A peripheral area on the road, which is a blind spot at least in front of the stopped vehicle when viewed from the overtaking vehicle side attempting to overtake the stopped vehicle on the road from behind. The detection range is set in advance, the presence or absence of a pedestrian in the detection range is detected, and when the presence of the pedestrian in the detection range is detected, the passing vehicle is passed from the stopped vehicle side. A method for warning the presence or absence of a pedestrian in an overtaking vehicle, characterized by providing attention information to the pedestrian to the side.