JPH1055010A - Collision car shooting device to guard - Google Patents

Abstract

(57) [Summary] [Problem] Even if a guard is damaged, there is no particular means for identifying a car that has run away due to a broken guard. The only option was to rely on inaccurate sightings. SOLUTION: A signal line such as an optical fiber is buried in a construction member of a guard, and when the signal line is cut due to damage due to a collision of the vehicle, the vehicle which is collided by a camera provided at a predetermined position. To shoot.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a girder br
It relates to a device for photographing a car that has crashed the guard by colliding with the top or side of the entrance of idge). According to the 4th edition of Kojien, published on 19991.11.15 (Issue: Iwanami Shoten Co., Ltd.), the guard is described as an overpass and a girder girder bridge, and issued on December 1, 1990 (issuance: According to the Katakana / Abbreviation Dictionary of Obunsha Co., Ltd., it is described as a railway bridge over a railway overpass or highway. The present invention proposes an apparatus that captures an image of a car that collides when a vehicle ignoring the height limit value collides with such a guard and the upper part or side wall of the guard is damaged.

[0002]

2. Description of the Related Art There has been a case where a car hits a guard and the guard is sometimes damaged, but there has been no means for identifying the car that hit the guard.

[0003]

Conventionally, it is not easy to identify a car that has run away even if the guard is broken and hinders subsequent traffic, and sighting information has been relied on. However, sighting information is often not always accurate (especially at night), and an effective means for identifying a car that has collided with a guard has been desired.

[0004]

According to the present invention, a signal line such as an optical fiber is buried in a guard construction member, and when the signal line is cut by a collision due to a vehicle, a predetermined signal line is cut. The camera provided at the position (1) captures an image of a car that has collided.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 FIG. FIG. 1 is a diagram showing the relationship between a guard and a car. In the figure, 1 is a guard, 2 is a stone wall, 3 is a road or track on the guard, 4 is a fence, 5 is a road under the guard, and 6 passes under the guard. Reference numeral 7 denotes a signal line embedded in the end of the guard facing the road, which is a feature of the present invention, and an optical fiber is suitable in consideration of noise generated from a vehicle. A signal source (not shown in FIG. 1) is provided at one end of the signal line 7, and a receiver is provided at the other end. In addition, a camera (not shown in FIG. 1) is provided for photographing a vehicle in which the guard is broken by performing a photographing operation for a predetermined time according to a reception signal state of the receiver and colliding with the guard.

FIG. 2 is a diagram showing a relative positional relationship between a car entering a guard and a camera for photographing a car number and the like from behind the car in the present invention, and shows a state viewed from above the guard. It is. In FIG. 2, 6a and 6b are cars,
The car 6a is a car traveling in the direction of arrow A, and the car 6b is a car traveling in the direction of arrow B. Reference numerals 8a and 8b denote cameras, which are arranged so as to photograph the vehicles in the corresponding lanes from behind. That is, if car 6a collides with the guard,
The car 6a is photographed from behind by the camera 8a. A and B are the fields of view of the cameras 8a and 8b, respectively. C is a center line.

FIG. 3 shows the relationship between a signal line and a signal source and a receiver, and the relationship between a receiver and a camera according to the present invention. Reference numeral 9 denotes a signal source, which transmits an optical signal to a signal line 7 which is an optical fiber. Input from one end. 10 is a photoelectric converter provided at the other end of the signal line, 11 is a conversion output of the photoelectric converter 10 as an input, and when there is an input signal, outputs an output of logical “0”;
Conversely, an inverter which outputs a logical "1" when there is no input signal, 12 is a contactor operated by the output of the inverter, and 13 is a normally open contact which is closed by the operation of the contactor 12. The receiver by these 10, 11, 12, and 13
14 are configured.

In such a configuration, if the car collides with the guard 1 and the guard 1 is damaged, and the embedded signal line 7 is cut off, the output of the photoelectric converter 10 disappears. Therefore, the output of the inverter changes from “0” to “1”, the contactor 12 operates, and the normally open contact 13 closes. When the contact 13 is closed, the camera 8 operates for a predetermined time, and captures an image of the vehicle colliding with the guard from behind.

By the way, in order to photograph the colliding vehicle from the front, it is necessary to install a camera on the opposite side of the guard. However, when the guard is seen from one side to the other, it is dark and cannot accurately photograph the colliding car. In addition, the length and curve of the guard also become a problem. In order to avoid such a problem, it is desirable to take a picture from behind a collision vehicle.

In the above embodiment, a simple circuit has been described so that the gist of the present invention can be easily understood. However, it goes without saying that the functions of these hardware can be replaced by a technology such as a microcomputer. . In addition, the shooting year, month, day, hour, minute, guard name, and the like can be imprinted on the shot image.

[0011]

According to the present invention, when the guard is damaged by colliding with the upper portion or the side wall of the guard while trying to pass through the guard ignoring the height limitation of the guard, it is easy to identify the car that has collided. Therefore, it is easy to respond after a collision, and it is possible to respond more accurately than the sighting information by human eyes.

[Brief description of the drawings]

FIG. 1 is a diagram for explaining an embodiment of the present invention.

FIG. 2 is a diagram for describing an embodiment of the present invention.

FIG. 3 is a diagram illustrating an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Guard 2 Ishigaki 3 Road or track 4 Fence 5 Road 6 Car 7 Signal line 8 Camera 9 Signal source 10 Photoelectric converter 11 Inverter 12 Contactor 13 Normally open contact 14 Receiver

Claims (4)

[Claims] 1. A signal line attached to an end of a guard facing a road, a signal source for inputting a signal from one end of the signal line, and a receiver provided at the other end of the signal line. A camera which is provided so as to photograph a car passing through a road under the guard, and which performs a photographing operation for a predetermined time according to a state of a reception signal of the receiver, An apparatus for photographing a car that collides with a guard, characterized in that the camera is actuated to photograph the cut car when the guard is partially broken by the collision with the guard and thereby the signal line is cut. . 2. The apparatus according to claim 1, wherein said signal line is embedded in a guard construction member. 3. The apparatus according to claim 1, wherein an optical fiber is used as the signal line. 4. The apparatus according to claim 1, wherein the camera is provided at a position for photographing a car entering the guard from behind.