JPH0714099A - Vehicle approach warning device - Google Patents

Abstract

PURPOSE:To surely confirm safety without being influenced by the weather or the brightness of the surroundings at a crossing in which no signal is provided and the visibility is bad. CONSTITUTION:This vehicle approach warning device is an alarm device to inform the driver of a vehicle traveling along one road toward the crossing, of the existence of vehicle or human being approaching the crossing from another road at this side of the crossing, and it is constituted so as to be provided with radars 11, 12 which detect the vehicle 50, etc., approaching the crossing from other road 41, 42, transmitters 21, 22 which transmit a detection signal toward one road 43, 44 on the basis of a signal from these radars 11, 12, and an alarming part 32 which is installed in the vehicle 30 approaching the crossing along this road 43, 44, and receives the detection signal from the transmitter 21, 22, and issues an alarm.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle approach warning device capable of surely performing safety confirmation at an intersection where traffic lights are not installed and visibility is poor, regardless of weather conditions or ambient brightness. Regarding

[0002]

2. Description of the Related Art At an intersection where traffic lights are not installed and visibility is poor, a driver of a vehicle traveling toward one of the roads on one of the roads must drive from another road to prevent a collision accident. It is necessary to confirm safety whether people are running or walking toward the intersection. Conventionally, a driver of a vehicle traveling on one road by attaching a mirror that reflects another road near the intersection, and seeing this mirror, the driver of a vehicle or a person approaching the main intersection from another road can see it. I was confirming the existence.

[0003]

However, in the above-mentioned method of visually confirming the intersection safety by visually observing the mirror, the scenery reflected from the driver's seat to the mirror in bad weather, for example, when it is raining heavily. Is difficult to see, and it is difficult for a driver of a vehicle traveling on one road to check the presence of a vehicle or a person approaching from another road. Further, when the surroundings are dark such as in the evening or at night, there is a problem that it is not possible to confirm the figure of a non-lighted bicycle or a person approaching from another road by the mirror.

The present invention has been made in view of the above-mentioned problems, and at a crossing where traffic lights are not installed and visibility is poor, safety confirmation can be surely performed without being affected by weather and ambient brightness. The object is to provide a vehicle approach warning device that can improve the traffic safety.

[0005]

In order to achieve the above-mentioned object, a vehicle approach warning device of the present invention provides a vehicle driver traveling on one road toward an intersection and another road before the intersection. An alarm device for notifying the presence of a vehicle or a person approaching an intersection from the road, a radar for detecting a vehicle or a person approaching the intersection from the other road, and a signal from this radar. It is installed in a transmitter that sends a detection signal to the first road and a vehicle approaching the first road toward an intersection, and receives a detection signal from the transmitter and issues an alarm. An alarm unit is provided.

[0006]

According to the vehicle approach warning device of the present invention having the above-described structure, when a vehicle or a person approaches an intersection from another road, the radar detects the vehicle or the person, and the transmitter detects the The detection signal is transmitted to the road. As a result, when a vehicle traveling on one road approaches an intersection, the alarm unit receives the detection signal and issues an alarm.
That is, a driver of a vehicle traveling on one road can know from this road that a vehicle or a person is approaching the intersection from another road before the intersection.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a vehicle approach warning device of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a vehicle approach warning device according to a first embodiment of the present invention. The vehicle approach warning device of this embodiment is configured to notify the driver of a vehicle traveling on one road of the presence of a vehicle approaching from another road.

In the figure, 10 is a vehicle detection unit,
The laser radars 11 and 12 are arranged toward the intersecting roads 41 and 42, and the laser transmitters 21 and 22 are arranged toward the roads 43 and 44. The vehicle detection unit 10 as described above is installed, for example, by hanging it from a pillar standing at the corner of the intersection to the center of the intersection. Laser radar 1
The lasers 1 and 12 emit monitoring lasers to the roads 41 and 42 through the laser radar antennas 11a and 12a in a predetermined cycle or constantly. This monitoring laser emits light toward only one lane (the left lane in Japan) in order to detect vehicles coming toward an intersection. Also, laser radar 1
1, 12 output a detection signal when detecting the vehicle 50 coming from the roads 41, 42 toward the intersection. When the detection signal from the laser radar 11 or 12 is input, the laser transmitters 21 and 22 receive the laser transmission antenna 21a,
A detection laser is emitted to the roads 43 and 44 via 22a. This detection laser emits light to only one lane in the same way as the above-mentioned monitoring laser in order to be received by the vehicle approaching the intersection.

Reference numeral 31 is a laser receiver installed in the vehicle 30. The laser receiver 31 receives a detection laser from the laser transmitter 21 or 22 via the laser receiving antenna 31a and outputs an operation signal. Reference numeral 32 denotes an alarm unit, which is mounted inside the vehicle 30. This alarm unit 32 is a laser receiver 31.
When an operation signal from the laser receiver 31 is input, a buzzer sounds or a lamp is turned on to issue an alarm.

According to the vehicle approach warning device of the present invention having the above-mentioned structure, the driver of the vehicle 30 traveling on the road 44 toward the intersection is notified from the road 41 toward the intersection by the warning issued from the warning section 32. You can know that the vehicle 50 is approaching just before the intersection. This embodiment is used when the traffic volume on the roads 41 and 42 is relatively large and the traffic volume on the roads 43 and 44 is relatively small.

Next, a vehicle approach warning device according to a second embodiment of the present invention will be described with reference to FIG. Figure 2
FIG. 1 is a configuration diagram showing a vehicle approach warning device according to the present embodiment. The vehicle approach warning device of the present embodiment notifies a driver of a vehicle traveling on one road of the presence of a vehicle approaching an intersection from another road, and also notifies the driver of this vehicle from the one road. It is designed to notify the presence of vehicles approaching the intersection.

In FIG. 1, the vehicle detection unit 10 includes laser radars 11, 12, 13, and 14 arranged toward the intersecting roads 41, 42, 43, 44, and the road 41, 42.
Laser transmitters 21 arranged toward 42, 43, 44,
It is composed of 22, 23, and 24.

According to the vehicle approach warning device of the present embodiment having such a configuration, the presence of the other vehicle is present in front of the intersection to the drivers of both vehicle 30 and vehicle 50 approaching each other toward the intersection. It becomes possible to inform,
Traffic safety can be improved.

The vehicle approach warning device of the present invention is not limited to the above-mentioned first and second embodiments. For example, the radar, the transmitter, and the receiver are not limited to the laser system as in the above embodiment, but may be changed to another system using microwaves or the like.

[0015]

As described above, according to the vehicle approach warning device of the present invention, the radar is used to detect a vehicle or a person approaching an intersection from another road. At intersections with poor visibility, without being affected by the weather or the brightness of the surroundings,
Safety confirmation can be surely performed, and traffic safety can be improved.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a vehicle approach warning device according to a first embodiment of the present invention.

FIG. 2 is a configuration diagram showing a vehicle approach warning device according to a second embodiment of the present invention.

[Explanation of symbols]

10 Vehicle detection unit 11, 12, 13, 14 Laser radar 11a, 12a, 13a, 14a Laser radar antenna 21, 22, 23, 24 Laser transmitter 21a, 22a, 23a, 24a Laser transmission antenna 30, 50 Vehicle 31, 51 Laser receiver 31a, 51a Laser receiving antenna 32,52 Alarm unit 41,42,43,44 Road

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[Procedure amendment]

[Submission date] February 22, 1994

[Procedure Amendment 1]

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[Claims]

[Procedure Amendment 2]

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[Correction method] Change

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[0005]

In order to achieve the above object, a vehicle approach warning device according to a first aspect of the present invention is provided to a vehicle driver who is traveling on a road toward an intersection before the intersection. A radar for notifying the presence of a vehicle or a person approaching an intersection from another road, the radar detecting a vehicle or a person approaching an intersection from the other road, and this radar A transmitter that transmits a detection signal to the one road based on a signal from the vehicle and a vehicle that is approaching the one road toward an intersection, and is installed in a vehicle that receives the detection signal from the transmitter. And an alarm unit for issuing an alarm. According to a second aspect of the vehicle approach warning device of the present invention, the vehicle approach warning device of the first aspect is installed for the entire road intersecting at an intersection. Further, in the vehicle approach warning device of the present invention according to claim 3, the radar is constituted by a laser radar, the transmitter is constituted by a laser transmitter, and the warning unit receives a laser signal from the laser transmitter. It is configured to issue an alarm.

Claims (1)

[Claims] 1. An alarm device for informing a driver of a vehicle traveling on one road toward an intersection before the intersection of the presence of a vehicle or a person approaching the intersection from another road. A radar that detects a vehicle or a person approaching an intersection from the other road, a transmitter that transmits a detection signal to the one road based on a signal from the radar, and the one of the one A vehicle approach warning device, which is installed in a vehicle approaching a road toward an intersection and comprises an alarm unit that receives a detection signal from the transmitter and issues an alarm.