JPH10121413A - Mobile road surface diagnostic device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable road patron by nonexpert. SOLUTION: A device, which moves on a road surface for diagnosis, is provided with a front camera 1, which is provided in front of an upper part of a vehicle and which picks up an image in front of the vehicle, a rear camera 2, which is provided in rear of the upper part of the vehicle and which picks up an image in rear of the vehicle, a headphone type microphone 7 for inputting the second, a switch 8 for inputting the marker signal, which indicates the recording of time, a time recording device 5 for recording time when the marker signal is inputted from the switch 8, and an image recording device 4 for continuously recording the sound, which is inputted from the headphone type microphone 7, so as to be overlapped with the image, which is picked up by at least one of the front camera 1 and the rear camera 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a road surface diagnosis apparatus for monitoring a road on an outdoor road or in various plants while moving the vehicle.

[0002]

2. Description of the Related Art Conventionally, when patrol a road,
This is done by the observer in a car and watching. For this reason, in addition to those who mainly monitor the road visually, in consideration of safety, we prepare people who drive cars,
At present, two patrons are on a road patrol in a car.

[0003] Further, there has been proposed an apparatus for monitoring the state of a road or the like by using an image processing technique without visual observation by a human. For example, there are the following.

(1) JP-A-5-28388, "Traffic Observation Device".

[0005] Japanese Patent Application Laid-Open No. 5-28388 discloses a "traffic obstacle monitoring device" configured as shown in FIG.

That is, the “traffic obstacle monitoring device” includes a monitoring camera unit 100 having a data transmission function (data transmission unit 110), a data reception unit 120, an image processing unit 130, an image recognition unit 140, and a failure information transmission unit 150. And a notification terminal 190 including a failure information receiving unit 170 and an alarm display unit 180.

[0007] In the "traffic obstacle monitoring device", the monitoring camera 1
Based on the road image data captured in 00, image processing 130 and image recognition 140 configured on a computer detect the occurrence of a failure and issue a warning to a driver of a vehicle having the notification terminal 190 or the like. .

[0008] (2) Japanese Patent Publication No. 02-17046, "Road surface rutting measuring device".

[0009] Japanese Patent Publication No. 1717046 discloses a control unit and a power supply which are a vehicle-mounted device, which are constituted by a computer having an optical distance measurement device, a monitor TV, an AD conversion device, and a memory unit for recording a video image. A "road surface rutting measurement device" is disclosed.

That is, in the "road surface rutting measuring device", a light receiver detects a large number of optical bars emitted from the light emitting device mounted on the traveling direction n of the wheel over the road surface width, and AD-converts the displacement of this position. Monitor T via video memory
V.

[0011]

As described above, conventionally,
When performing a road patrol, it is monitored visually by human power, or an image processing technique is used.

In the case of visual monitoring by human power,
Conventionally, from a safety point of view, at least two drivers, a driver and a supervisor, are required, and further labor saving cannot be achieved.

When the image processing technique is used, all of the image data captured by the camera is subjected to image processing to determine only a specific target. That is, in the current image processing technology, only a very specialized one can be distinguished, and handling of general-purpose image processing of information obtained from a camera causes considerable difficulty.

For example, Japanese Unexamined Patent Publication No. 5-28388 "Traffic Observation Apparatus" processes an image in a specific imaging range from a camera whose installation position is fixed. The "digging measurement device" is intended for a specific object such as roadside digging measurement while monitoring while moving, and it is necessary to perform patrol by a patrol expert.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a road surface movement diagnostic apparatus which can be patroled by a single person who is not an expert.

[0016]

SUMMARY OF THE INVENTION The present invention provides a vehicle front surveillance camera installed at the front of a vehicle to capture an image in front of the vehicle, and a rear view camera installed at the rear of the vehicle to capture an image behind the vehicle. A vehicle rear monitoring camera for photographing, a voice input device for inputting voice, a marker signal input device for inputting a marker signal for instructing time recording, and a marker signal from the marker signal input device A time recording device that records the time when the vehicle is input, and a vehicle input monitor that continuously monitors the voice input by the voice input device in accordance with a marker signal input from the marker signal input device. An image recording device for superimposing and recording an image taken by at least one of a camera and the vehicle rear monitoring camera is provided.

That is, the road monitoring environment is photographed by cameras installed in front of and behind the car, and the observer driving the car pushes the marker signal input device (switch) at hand every time an abnormality is found. The time is recorded in the time recording device, and a description voice using a keyword or the like indicating the situation is input from the voice input device, and is superimposed on the image by the image recording device.

Thus, after returning to the base after patrol, it is possible to determine the location of the abnormality from the time and audio information recorded during the patrol and to collect data for judging the abnormality from the image information.

The road surface movement diagnosing device according to the present embodiment enables both driving of a vehicle and road monitoring, that is, road monitoring without impairing driving safety.

[0020]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram illustrating a configuration of a road surface movement diagnosis device according to the present embodiment. As shown in FIG. 1, the road surface movement diagnostic device according to the present embodiment includes a front camera 1, a rear camera 2, a vehicle mounting device 3, an image recording device 4, a time recording device 5, a power supply device 6, a headphone microphone 7, A switch (marker signal input device) 8 is provided.

A front camera (vehicle front monitoring camera) 1 and a rear camera (vehicle rear monitoring camera) 2 are CCD cameras or the like, have a built-in CCU in the camera itself, and are driven by a voltage supplied by a power supply 6. You.

The front camera 1 and the rear camera 2 are equipped with a vehicle mounting device 3 so that they can be easily mounted on the vehicle.
It can be easily attached to the windshield etc. in the car (Fig. 2
reference).

The image recording device 4 is connected to the front camera 1 and the rear camera 2, and when the patrol of the road starts,
Image information captured by the front camera 1 and the rear camera 2 is recorded on the VTR tape 9. A headphone type microphone (voice input device) 7 is connected to the image recording device 4.

The time recording device 5 records the time when the switch 8 is pressed and the marker signal is input, and is driven in synchronization with the VTR tape counter (time display) of the image recording device 4. (Reset at the start of patrol). The time recording device 5 can output the recorded time by the time recording tape 10.

The headphone-type microphone 7 is used by a driver who is a supervisor to explain the contents of an abnormal situation during monitoring and input by voice. The audio data input by the headphone type microphone 7 is superimposed and recorded on the audio portion of the VTR tape 9 by the image recording device 4 together with the image data of the images captured by the front camera 1 and the rear camera 2.

The switch (marker signal input device) 8
This is for inputting a marker signal for instructing recording of time. When the switch is pressed, the time when the switch 8 is pressed (the marker signal is input) is recorded by the time recording device 5.

As shown in FIG. 2, the image recording device 4, the time recording device 5, and the power supply device 6 are put together in one box, configured as a patrol device main body 50, and installed in a patrol car 60.

The front camera 1 is provided with a patrol car 60.
It is installed inside and takes an image of the front of the car through the windshield. The rear camera 2 is a patrol car 6
It is installed inside the camera and shoots an image behind the car through the rear glass.

As shown in FIGS. 2 and 3, the switch 8 is mounted at a position where the switch of the handle 70 can be easily operated in consideration of safety during operation.

Next, the operation of this embodiment will be described.

The road monitoring by the road patrol is performed in two stages. First, a patrol car 60 travels on an actual road to perform a road patrol, and image data representing the road condition is recorded on the VTR tape 9 by the image recording device 4, and the occurrence of an abnormal situation can be determined. At this time, the explanation of the situation and the marking of the time are performed by voice. Secondly, after the road patrol, at the base or the like, referring to the information (image data and audio data) indicating the road condition recorded on the VTR tape 9 and conducting a detailed investigation again mainly at the marked time. To judge the road condition.

The road conditions are determined by the properties of the road such as "white line state", "roughness of road surface", "freezing of road surface",
Road facilities include "damage of guardrails", "damage of guide fluorescent screens", and "drops on roads".

First, in a road patrol, a front camera 1 attached to photograph the front of a car while traveling on a road by a patrol car 60, and a camera rear camera 2 attached to photograph the rear of the car. Is recorded on the VTR tape 9 by the image recording device 4.

Each time the observer who is the driver of the patrol car 60 notices a change in road characteristics or an abnormal situation such as a guardrail during patrol traveling, a switch on the handle 70 attached so as not to cause any safety problems. Press 8 and also through headphone microphone 7 to explain the situation.

The time recording device 5 records the time in response to the depression of the switch 8. The time is set to V by the image recording device 4.
This is linked with the recording by the TR tape 9. That is, when the image recording device 4 starts recording on the VTR tape 9, the recording is reset by the marker input signal from the switch 8, and the recording time of the image on the VTR tape 9 and the time recorded by the time recording device 5 are changed. Be linked.

Alternatively, the time recording device 5 may send a signal to the image recording device 4 so that the VTR tape counter (time display) at that time is superimposed on the image recording portion of the VTR tape 9.

The sound input by the headphone type microphone 7 is transmitted to the VT by the image recording device 4 together with the images taken by the two front cameras 1 and the rear camera 2.
It is superimposed and recorded on the R tape 9.

Further, since voice input is performed by the headphone type microphone 7, manual operation is not required, and even if the switch 8 is operated, only one monitor, the driver of the patrol car 60, needs to be operated. Even if there is no problem on safety.

As described above, the VTR tape 9 obtained by the road patrol and the time recording tape 10 output from the time recording device 5 serve as data that the observer examines in detail after returning to the base. .

That is, by reading the time recorded on the time recording tape 10, ie, the image at the time when an abnormality or the like is detected, from the VTR tape 9 and displaying it on the monitor device, the situation can be grasped in detail from the image. Also, because the situation explanation by the monitor is output by voice,
You can easily understand the situation.

In this way, while traveling on the road by the patrol car 60, the front camera 1 and the rear camera 2
The image captured by the VTR is transferred to the VTR by the image recording device 4.
By recording on the tape 9 and pressing the switch 8 when an abnormality or the like is detected, it is possible to record the time at which the abnormal situation was photographed and to record the contents explaining the situation by voice.

The operation of the switch 8 is provided at a position where the handle 70 can be easily operated, and the voice input is performed using the headphone type microphone 7 without manual operation. The road patrol can be performed by a single driver / supervisor.

[0043]

As described above in detail, according to the present invention, it is possible to perform a road patrol by a single person who is not an expert.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of a road surface movement diagnosis device according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating a schematic configuration in which a road surface movement diagnosis device is incorporated in a patrol vehicle according to the embodiment.

FIG. 3 is a view showing a state in which a switch is attached to a handle in the embodiment.

FIG. 4 is a diagram showing an apparatus configuration for explaining a conventional technique.

[Explanation of symbols]

 Reference Signs List 1 front camera 2 rear camera 3 on-vehicle mounting device 4 image recording device 5 time recording device 6 power supply device 7 headphone microphone 8 switch (signal input device for marker)

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Keiichi Michimi 2-1-1, Aramachi-cho, Niihama, Arai-machi, Takasago City, Hyogo Prefecture Inside the Takasago Research Laboratory, Mitsubishi Heavy Industries, Ltd. Mitsubishi Heavy Industries, Ltd. Nagoya Guidance Propulsion System Works

Claims (2)

[Claims] 1. A vehicle front monitoring camera installed at a front part on a vehicle to capture an image in front of the vehicle, a vehicle rear monitoring camera installed at a rear part on the vehicle to capture an image behind the vehicle, A voice input device for inputting voice, a marker signal input device for inputting a marker signal for instructing time recording, and a time when a marker signal is input from the marker signal input device. A time recording device for recording, and in response to a marker signal input from the marker signal input device, continuously input the audio input by the audio input device, the vehicle front monitoring camera or the vehicle rear monitoring camera. An apparatus for diagnosing road surface movement, comprising: an image recording device for superimposing and recording an image captured by at least one of the images. 2. Road properties such as "white line condition", "roughness of road surface", "freezing of road surface", road facilities such as "damage of guardrail", "damage of guide fluorescent screen", and "dropping on road". The road surface movement diagnostic device according to claim 1, wherein road patrol is performed.