JP2001221713A - Inspection apparatus for bottom of automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inspection apparatus for the bottoms of automobiles such that when the bottom parts of many kind of automobiles different in the distance from the ground to the bottom of automobiles are inspected, the photographing direction of a camera can be set according to the automobile to be inspected, so as to easily inspect. SOLUTION: A top plate 10 constituting the photographic unit of the inspection apparatus is provided and sidewall members 13 and 14 are also provided. A cooling fan 21 is provided. A camera 30 for photographing the bottom of the automobile is fixed to a camera fixing stand 45. One end of a shaft member 41 is fixed to the camera fixing stand 45 and the shaft member 41 is freely rotatably supported against a bearing member 42 fixed to the sidewall member 13 by means of a nut 44. A fixing screw 43 for fixing the shaft member 41 in a desired rotating position is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automobile bottom inspection apparatus used for examining the bottom of an automobile.

[0002]

2. Description of the Related Art In a place where important persons gather at an international conference or the like, inspection is usually performed on vehicles entering the place to check for explosives.

In such an inspection, not only the trunk of the automobile but also the bottom of the automobile are to be inspected.

FIG. 9 is a perspective view showing the configuration of a conventional inspection apparatus used for inspecting the bottom of an automobile.

In FIG. 9, A is a photographing unit for photographing the bottom of a car, B is a display device for displaying an image sent from the photographing unit A, and C is a step for protecting the photographing unit A. And D are rubber mats.

[0006] The photographing unit A shown in FIG. 9 has four cameras built therein, and images sent from each camera are displayed on the display device B.

FIG. 10A is a diagram showing a display example of the display device B. In this example, one screen of the display device B is divided into four, and the images of the four cameras are respectively displayed on the divided quarter screen.

FIG. 10B shows a photographing unit A and a car E.
FIG. 6 is a diagram showing a positional relationship with the と. Since the photographing unit A is disposed below the vehicle body of the car E, if the car E is advanced while looking at the display device B, the entire bottom of the car E can be checked.

[0009]

However, in the above-described conventional inspection apparatus, since the bottom of the automobile E is photographed by four cameras completely fixed inside the photographing unit A, it is necessary to take a photograph from the ground surface. When inspecting various types of vehicles with different distances to the vehicle, depending on the type of vehicle, the overlap of the four images may increase, or
Some parts could not be photographed with four cameras.

When there are many overlapping portions of the four images, the inspection is difficult. When there are portions that cannot be photographed by the four cameras, the positional relationship between the car E and the photographing unit A is slightly shifted. Had to be checked again.

[0011] An object of the present invention is to provide a camera with a camera shooting direction according to the vehicle to be inspected so that the inspection can be easily performed when inspecting the bottom of various types of vehicles having different distances from the ground surface to the bottom. It is an object of the present invention to provide an automobile bottom inspection device capable of setting the following.

[0012]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a photographing unit having a camera for photographing the bottom of an automobile and lighting means for irradiating light to a photographing portion of the camera. In a bottom inspection apparatus for an automobile, comprising: a display device for displaying an image transmitted from the camera of the photographing unit, a photographing direction setting means capable of changing a photographing direction of the camera is provided in the photographing unit. It is characterized by having been done.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing the overall configuration of an embodiment of the present invention.

As shown in FIG. 1, the present embodiment is entirely composed of a photographing unit A and a display device B, similarly to the above-described conventional apparatus. The photographing unit A and the display device B are connected by a cord for image transmission or the like. C is a step for protecting the photographing unit A, and D is a rubber mat.

FIG. 2 shows a photographing unit A according to this embodiment.
3 is a plan view showing an internal configuration of the image capturing unit A, and FIG. 4 is a perspective view of the image capturing unit A.

As shown in FIGS. 2 and 4, the top plate 10 forming the upper surface of the photographing unit A has a window member 11 for transmitting light for illumination and a camera for photographing. And four window members 12 are provided. 4
Reference numeral 0 denotes a photographing direction setting device for setting the photographing directions of the four cameras.

The inside of the photographing unit A is configured as shown in FIG.

In FIG. 3, reference numerals 13 to 16 denote side wall members of the photographing unit A, and reference numeral 17 denotes a heat shielding plate for protecting the camera 30 from heat generated by the lighting bulb 20.

In the present embodiment, the top plate 10 and the side wall members 13 to 16 are made of aluminum, and the window members 11 and 12 are made of transparent polycarbonate. Further, the side wall member 16 of the heat shielding plate 17
The side is provided with a through-hole so that air can pass therethrough.

Reference numeral 21 denotes a cooling fan for drawing in external air, and reference numerals 22 and 23 denote cooling fans for discharging internal air.

The cooling fans 21, 22, 23 are driven by a DC brushless motor. Therefore, the image signal of the camera 30 is not affected, and the lighting bulb 20 is not affected.
Is less susceptible to voltage fluctuations during dimming.

Reference numeral 24 denotes a power supply for supplying DC power to the cooling fans 21, 22, and 23. Reference numeral 25 denotes a power supply for a signal line for transmitting an image signal from the camera 30, the lighting bulb 20, and the like. Is a connector for connecting a cord such as a power line for supplying power.

Here, the configuration of the photographing direction setting device 40 according to the present embodiment will be described.

FIG. 5 is a perspective view showing the structure of the photographing direction setting device 40, and FIG. 6 is a sectional view thereof.

5 and 6, reference numerals 41 and 46
Is a shaft member fixed to the side wall of the camera fixing base 45 so that its axial directions coincide with each other. Reference numeral 42 denotes a bearing member that rotatably supports the shaft member 41, and reference numeral 43 denotes a fixing screw that is screwed to the bearing member 42. The shaft member 41 can be fixed at a desired rotation position by the fixing screw 43. .

Numeral 44 denotes a nut which is screwed with the bearing member 42.
It is fixed to 3.

Reference numeral 47 denotes a waterproof O-ring that is in close contact with the outer peripheral wall of the bearing member 42, and reference numeral 48 denotes a waterproof O-ring that is in close contact with the outer peripheral wall of the shaft member 41 and the inner peripheral wall of the bearing member 42. It is.

Here, the shaft member 46 is rotatably supported by the heat shield plate 17, and a portion which is exposed to the outside of the shaft member 41 is provided with a groove which can be engaged with a driver.

In the photographing direction setting device 40 according to the present embodiment configured as described above, the photographing direction of the camera 30 fixed to the camera fixing base 45 can be set to an arbitrary direction. That is, as shown in FIG. 7, the shaft member 4 is
1 can be rotated and the photographing direction of the camera 30 can be freely set by tightening the fixing screw 43 at a desired rotational position.

Therefore, by appropriately adjusting the photographing direction setting device 40 while viewing the image on the display device B, the optimum photographing direction according to the type of the vehicle for which the photographing directions of the four cameras 30 shown in FIG. Direction can be set.

In this embodiment, since the cooling fans 21, 22, and 23 driven by the DC brushless motor described above are mounted on the photographing unit A, the illumination unit is more illuminated than the conventional apparatus. The effect of the heat generated by the bulb 20 on the camera 30 is reduced. Therefore, a stable image can be obtained for a long time.

In the above description, the photographing unit A is arranged such that the four cameras in the photographing unit A are arranged in a direction perpendicular to the traveling direction of the automobile (FIG. 10).
(B)). However, the arrangement of the photographing units A is not limited to this. For example, the photographing units A may be arranged such that four cameras are arranged in the traveling direction of the automobile.

When the photographing unit A is arranged such that the four cameras are arranged in the traveling direction of the car, only a part of the bottom of the car is photographed sequentially by the four cameras, and the images are displayed. It will be displayed on the device. Therefore, when it is desired to inspect only a part of the bottom of the vehicle particularly in detail, the photographing unit A is arranged in this way, and attention is paid to the image of the camera that first photographs the bottom of the vehicle. When the part appears,
What is necessary is just to examine that part in detail by the image sequentially imaged by the three cameras after the second.

In the embodiment described above,
Although the configuration is such that four cameras are arranged in the imaging unit A, any number of cameras may be arranged in the imaging unit A.

[0036]

As described above, according to the present invention, when inspecting the bottoms of various kinds of automobiles having different distances from the ground surface to the bottom, the automobiles to be inspected can be easily inspected. The shooting direction of the camera can be set according to.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a configuration of an embodiment of the present invention.

FIG. 2 is a plan view of the photographing unit according to the embodiment shown in FIG.

FIG. 3 is a plan view showing an internal configuration of a photographing unit according to the embodiment shown in FIG.

FIG. 4 is a perspective view of the photographing unit according to the embodiment shown in FIG. 1;

FIG. 5 is a perspective view showing a configuration of a photographing direction setting device of the photographing unit according to the embodiment shown in FIG.

FIG. 6 is a cross-sectional view showing a configuration of a photographing direction setting device of the photographing unit according to the embodiment shown in FIG.

FIG. 7 is an explanatory diagram of a method of using the photographing direction setting device of the photographing unit according to the embodiment shown in FIG. 1;

FIG. 8 is an explanatory diagram of a method of using the imaging unit according to the embodiment shown in FIG.

FIG. 9 is a perspective view showing a configuration of a conventional device.

FIG. 10 is an explanatory diagram of a method of using a conventional device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Top plate 11, 12 Window member 13-16 Side wall member 17 Heat shielding plate 20 Illumination bulb 21-23 Cooling fan 24 Power supply device 25 Connector 30 Camera 40 Shooting direction setting device 41, 46 Shaft member 42 Bearing member 43 For fixing Screw 44 Nut 45 Camera fixing base 47,48 O-ring A Imaging unit B Display C Step step D Rubber mat

Claims (2)

[Claims] 1. A photographing unit comprising a camera for photographing the bottom of an automobile and illumination means for irradiating a photographing portion of the camera with light, and a display device for displaying an image transmitted from the camera of the photographing unit. A bottom inspection apparatus for a vehicle, comprising: a photographing unit provided with a photographing direction setting unit capable of changing a photographing direction of the camera. 2. The vehicle bottom inspection apparatus according to claim 1, wherein a cooling fan driven by a DC brushless motor is further provided in the photographing unit.