JPH0944627A - Tunnel illumination controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the illumination efficiency of a tunnel illumination controller. SOLUTION: This device is provided with an image processor 3 for reading the stream 6 of cars detected by video equipment 2 and performing image processing, image abnormality detection circuit 11 for outputting an abnormality detect signal by detecting that the stream 6 of cars detected by the video equipment 2 continues a previously decided abnormal set value longer than previously decided set time, and an illuminance controller 4 for controlling the illuminance of illumination equipment 1 by adjusting an illuminance set value corresponding to the abnormality detect signal 3a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tunnel lighting control apparatus having an image processing apparatus having an abnormality detection function based on an ITV camera image and a lighting control apparatus for controlling lighting by dividing a tunnel into sections.

[0002]

2. Description of the Related Art Conventionally, when an abnormal running in a tunnel due to an obstacle or the like is detected by an image processing device using an image of an ITV (industrial television image device) camera, the operator is notified of the abnormality detection. Operator) is IT
In order to determine the abnormal section from the V camera image and to confirm the abnormal situation and ensure the safety of the passing vehicle, the control is manually performed to raise the illumination state of the section.

[0003]

However, in the past, the operator manually determined the abnormal section from the ITV camera image and manually performed the lighting control for raising the illumination state of the abnormal section, so the determination of the abnormal section was ambiguous. However, there is a problem that it takes time to control the lighting and a burden is placed on the operator.

Therefore, according to the present invention, when an abnormality is detected by the image processing device, the abnormal division is automatically determined and the abnormality detection signal and the abnormal division signal are output to the illumination control device, and the illumination control device notifies them. It is an object of the present invention to provide a tunnel lighting control device capable of saving labor of an operator and speeding up safety of a passing vehicle by automatically performing lighting control so as to raise a lighting state of an abnormal section based on the above.

[0005]

DISCLOSURE OF THE INVENTION A tunnel lighting control device of the present invention is a lighting device installed in a tunnel to illuminate a road, an illuminance setting device for presetting a lighting setting value of the lighting device, and a tunnel. A video device that detects the flow of a car passing through the inside of the vehicle, an image processing device that reads the flow of the car detected by the video device and performs image processing, and an abnormal set value for the flow of the car detected by the video device. And an image abnormality detection circuit that outputs an abnormality detection signal by detecting that it continues for more than a predetermined set time, and a lighting control device that adjusts the illuminance set value by the abnormality detection signal and controls the illuminance of the lighting device. It is characterized by having.

[0006]

In the tunnel lighting control device of the present invention, the lighting equipment is installed in the tunnel to illuminate the road, the illumination value set value of the lighting equipment is preset, and the flow of vehicles passing through the tunnel is controlled. The flow of the car detected by the video device is detected, the flow of the car detected by the video device is read and image processing is performed, and the flow of the car detected by the video device continues beyond the preset abnormal setting value for a preset time. It is characterized by detecting that the abnormality is detected, outputting an abnormality detection signal, adjusting the illuminance set value by the abnormality detection signal, and controlling the illuminance of the illumination meter.

[0007]

Next, an embodiment of the tunnel lighting control device of the present invention will be described. In FIG. 1, the lighting device 1 is a tunnel 9
It is a lighting device that is installed inside to illuminate the road. The illuminance setting device 10 is a device that presets the illumination setting value of the lighting device 1. The video device 2 is a device for video-detecting the flow 6 of the car passing through the tunnel 9 by using, for example, an ITV (industrial television video device). The image processing device 3 is a device that is connected to the video device 2 and reads the car flow 6 detected by the video device 2 as an image signal 2a to perform image processing. The image abnormality detection circuit 11 detects that the flow 6 of the vehicle detected by the video device 2 has been changed by the obstacle 5 or the like by lateral movement of the illumination lamp of the vehicle, and the lateral movement is set to a predetermined abnormality setting. It is a circuit that detects that the value has continued beyond a predetermined set time and outputs the abnormality detection signal 3a as the relevant abnormal section 8 of the section 7. The illumination control device 4 is connected to the image processing device 3, the image abnormality detection circuit 11, and the illuminance setting device 10, adjusts the illuminance set value by the abnormality detection signal 3a and the abnormality section signal 3b, and outputs the control signal 4a to output an abnormality. This is a device that controls the illuminance of the lighting device 1 installed in the section 8.

That is, the image processing device 3 is configured to be able to input the image signal 2a from the video device 2 such as an ITV camera and output the abnormality detection signal 3a and the abnormal partition signal 3b to the illumination control device 4. The illumination control device 4 includes the image processing device 3
The abnormality detection signal 3a and the abnormality section signal 3b are input from the above, and the lighting device 1 can be controlled.

FIG. 2 is a flow chart of the tunnel lighting control method. In step 21, the image processing device 3 inputs the image signal 2a such as an ITV image from the video device 2. Next, in step 22, image processing of the input image signal 2a is performed, and in step 23, it is confirmed whether abnormal traveling is found. If abnormal traveling is found in step 23, the abnormal section is determined from the image signal 2a in step 24, and the illumination control device 4 is determined in step 25.
The abnormality detection signal 3a and the abnormal section signal 3b are output to the. In step 26, the illumination control device 4 detects the abnormality detection signal 3a.
Then, it is determined whether or not the abnormal section signal 3b is input, and in step 27, the current illumination state of the abnormal section is confirmed. And
In step 28, it is determined whether or not the current illumination state of the abnormal section 8 is maximum, and if it is not the maximum, the illumination state of the abnormal section 8 is controlled and output to the illumination device 1 only in a preset step in step 29. . In addition, if it is at the maximum, the lighting condition is maintained as it is.

[0010]

According to the present invention, when an abnormal traveling due to an obstacle or the like occurs in the tunnel, it can be automatically controlled, so that the visibility in the tunnel is poor when the operator is busy responding to other events. When it is difficult for the operator to determine the abnormal section, the automatic labor from the abnormal section determination to the lighting control can provide labor saving for the operator, and the time from the abnormal section determination to the lighting control. By shortening, it is possible to provide the safety assurance of the passing vehicle.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a tunnel lighting control device showing an embodiment of the present invention.

FIG. 2 is a flow chart explanatory view showing an operation of tunnel lighting control.

[Explanation of symbols]

 1 Lighting Equipment 2 Video Device 3 Image Processing Device 4 Lighting Control Device 10 Illuminance Setting Device

Claims (1)

[Claims] 1. A lighting device which is installed in a tunnel to illuminate a road, an illuminance setting device which presets a lighting value setting value of the lighting device, and a video detection of a flow of a vehicle passing through the tunnel. Image processing apparatus, an image processing apparatus that performs image processing by reading the flow of the vehicle detected by the video apparatus, and an abnormal set value for which the flow of the vehicle detected by the video apparatus is set to a predetermined set time. An image abnormality detection circuit that detects an excess and outputs an abnormality detection signal, and an illumination control device that adjusts the illuminance set value by the abnormality detection signal to control the illuminance of the illumination device. Tunnel lighting control device.