JP3023696U - Inspection device - Google Patents

Abstract

(57) [Abstract] [Problem] It is portable and enables inspection work by one person without requiring any skill. SOLUTION: A video camera 1 and a platform part 2 are provided on the top of an expandable / contractible length adjusting means 7 composed of cylindrical columns 7a to 7g. The length adjusting means 7 includes a connecting portion 12.
Thus, it is detachably attached to the support means 8 formed of a tripod. The length adjusting means 7 is rotatable about its central axis, and the handle 1 provided on the length adjusting means 7 is provided.
By operating 3 to rotate the length adjusting means 7,
The video camera 1 can be panned. In addition, a control signal is sent to the camera platform section 2 through the second signal transmission unit 10 by operating the first operation unit 3 on the support unit 8, whereby the video camera 1 can be tilted. .
The video signal from the video camera 1 is the first signal transmission means 9
Is sent to the display unit 4 via the, and the captured image is displayed. By reducing the tripod of the length adjusting means 7 and the supporting means 8, it becomes easy to carry.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention is a video of the outer wall surface and the inside and outside of the facility, such as roofs and gutters in low-rise buildings and facilities such as ordinary houses, and grooves such as ventilation holes, which are difficult to observe and inspect from the ground. The present invention relates to an inspection device for inspecting in detail by using an image pickup means such as a camera.

[0002]

[Prior art]

 Conventionally, when inspecting the outer wall surfaces around and around the facility and the inside of the facility that are difficult to observe and inspect from the ground, for example, a ladder is put on a low-rise building such as a house or a facility, and I climbed this ladder and observed and inspected the target area directly with the naked eye.

Further, in a large-scale facility, as disclosed in Japanese Patent Laid-Open No. 6-123910, the balloon is equipped with an imaging means, a balloon length adjusting means, a rotating means for rotating the imaging means by a predetermined angle, and the like. Then, there is a method of remotely operating each control device by wire to record an image signal from the image pickup means or perform image information processing.

Further, as a video camera system for remote control, Japanese Patent Laid-Open No. 3-295371 discloses a video camera and an electric pan head, and further, a video signal and an electric cloud obtained by shooting with the video camera. A video camera system that includes a transmitter that wirelessly transmits a control signal for controlling a table and that is remotely controlled by a remote controller is disclosed. This Japanese Patent Application Laid-Open No. 3-295371 also discloses, in claim 2, an example in which a video camera is attached to a movable object.

Further, as an example of a structure in which a video camera is used as an inspection device and such inspection device is laid in each facility, Japanese Patent Laid-Open Publication No. 2-202318 discloses a bridge-mounted equipment inspection device. The inspection device is equipped with a mechanism that can be expanded and contracted in the vertical direction on the bogie, and a plurality of arms that freely rotate vertically and horizontally from the mechanism are combined, and the platform and zoom lens are attached to the tip of them. Equipped with a camera.

[0006]

[Problems to be solved by the device]

 As mentioned above, when inspecting the outer wall such as the roof, which is difficult to observe and inspect from the ground, the method in which the operator climbs the ladder and directly observes and inspects the target area with the naked eye Along with the work, there is a problem that the worker needs skill in order to perform a certain amount of inspection work quickly and accurately. In addition, there is a problem that the range that can be detected is narrowed because it cannot move freely on the ladder. Furthermore, the record of the inspection content and the objectivity of the inspection content when performing the work by providing the record to a third party, the safety of the worker by performing the inspection while climbing on the ladder, and the two-person work There was also a problem due to soaring personnel expenses.

[0007] When the method of remotely controlling a cable with an imaging device mounted on a balloon is applied to outdoor work such as inspecting an outer wall surface such as a roof, the device becomes large-scale, and there is a problem in portability, which is high. It is worth it. In addition, depending on the surrounding environment of the facility to be inspected, for example, there are power lines and adjacent houses, and if the inspector is to perform the inspection by himself, there is a risk that the inspector will be distracted by the display screen and operate the balloon incorrectly. Therefore, there is a safety problem with third parties around. Furthermore, there is a problem that weather such as wind and rain affects the balloon, which makes it difficult to carry out inspections, or that the balloon shakes and the image is not stable.

The method using a video camera system, which is equipped with a transmitter for wireless transmission and is remotely operated by a remote controller, is basically suitable for fixed-point observation, but has a problem that the installation location of the video camera is fixed. As disclosed in claim 2 of JP-A-3-295371, when a video camera is attached to a movable object, the same inspection device (wired remote control) using a balloon is used. In addition to problems, there are problems such as the limit of continuous operation time due to battery life and the complexity of operations related to wireless remote control of moving objects.

An example of a structure in which an inspection device using a video camera is laid in each facility is originally a large-scale device and can be used as an inspection device used outdoors without any restrictions on the installation location. This is physically and costly to do.

The object of the present invention is to solve the above problems, to be portable so that it can be used outdoors, and to be able to perform inspection work by one person by fixing the device substantially during work, and to improve the skill of the inspector. Independent inspection and recording can be performed regardless of weather conditions, and stable images can be displayed / recorded / reproduced with simple operation, and safety consideration against electric shock is added. The purpose is to provide a small, lightweight and inexpensive inspection device that can be used for a long time.

[0011]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a video camera, a pan / tilt head for mounting the video camera to tilt, pan or tilt and pan the video camera, and a remote control for the pan / tilt head. No. 1 operation unit, a recording unit for recording and reproducing a video signal output from the video camera on a recording medium, and a display for displaying the video signal from the video camera and the reproduction video signal from the recording unit on a screen. And a second operation section for performing optical zoom control and electric zoom control of the video camera, and a main body section including the recording section, the display section and the second operation section is provided. In the inspection device, the length adjusting means for adjusting the length of the pan head portion including the video camera and the length adjusting means are supported on the ground, and the length adjusting means and the supporting means are separably connected. The supporting means to be continued and the length adjusting means to the maximum. The length of the first adjusting means and the first adjusting means, which has a line length capable of connecting the video camera and the main body even when extended, and which transmits various signals to each other, are maximized. A second line having a line length capable of connecting the camera platform and the operation unit even when transmitting a control signal output from the operation unit for remotely operating the camera platform to the camera platform. And the signal transmission means of to make the total length of the device variable.

Further, according to the present invention, the pan head portion is changed to a pan head portion that can be tilted and panned to be fixed at an arbitrary position, so that the entire length of the apparatus is variable.

In the present invention, the length adjusting means has, for example, a multi-stage structure in which a plurality of tubular members having different outer peripheral dimensions are combined with their central axes substantially coincident, and each stage has an arbitrary length. It is configured by using one or a plurality of monopoles that have a locking means that can be stopped and have a structure that expands and contracts. At the longest, the length adjusting means is a length obtained by subtracting the width dimension of the locking means provided at each step from the total length of the respective tubular members, and at the shortest, approximately one tubular member. The sum of the width dimensions of the locking means provided in each step is equal to the length. Similarly, a self-supporting inspection device is constructed by combining support means forming a tripod structure composed of at least three legs having a structure in which the length can be changed and fixed.

At the time of inspection work, the length adjusting means is installed on the upper part of the supporting means, and the video camera and the platform are combined and installed on the uppermost part of the length adjusting means. Then, by extending and contracting the monopole and legs, the length adjusting means and the supporting means are adjusted to an arbitrary length and fixed, so that at the longest time, the camera angle can be set from a high place like a crane camera. To enable. Also, when transporting the device, the monopole and legs are reduced to reduce the length adjusting means and the supporting means to the minimum length, and the length adjusting means and the supporting means are separated. The whole device becomes easy to carry.

Further, a video camera, a recording unit for recording and reproducing a video signal output from the video camera on a recording medium, and a video signal from the video camera and a reproduction image signal from the recording unit are displayed on a screen. Display unit and a second operation unit for performing optical zoom control and electric zoom control of the video camera, and the first signal transmitting means for transmitting such a video signal is a length adjusting unit. It has a length that enables connection between the main body including the recording unit, the display unit, and the second operation unit and the video camera even when the means is extended to the maximum extent. This makes it possible to check the video of shooting, recording, and playback by setting the camera angle from the above-mentioned altitude on the screen display of the display unit, and to remotely control the optical zoom control and electrical zoom control of the video camera. To do.

Similarly, the second signal transmission means has a length that enables connection between the platform and the operating portion even when the length adjusting means is extended to the maximum extent. The control signal for remote control of the camera platform output from the device is transmitted to the camera platform. As a result, it is possible to remotely control the camera platform while visually confirming the display screen on the display regarding the camera angle setting from the above-mentioned high place. In addition to the optical zoom control and the electrical zoom control by operating the video camera at a distance from the main body, detailed inspection work can be performed at locations where direct observation / inspection is difficult while on the ground. Inspection records can be recorded by one worker.

Further, the image signal from the video camera is displayed on the screen after the image stabilization processing, and the direction in which the deflection strength of the length adjusting means is large is orthogonal to the optical axis direction of the video camera. In addition, the second adjusting means is rotatable in a plane intersecting the central axis of the length adjusting means and can be fixed at any position along the central axis of the length adjusting means. By installing this second support means around the inspection point and supporting the upper part of the length adjusting means at the time of inspection work, it is provided on the upper part of the means to reduce the screen shake during the inspection and stabilize the operation. You can quickly perform inspections on the screen.

Furthermore, at least one of the cylindrical members forming the monopole of the length adjusting means is an insulating member, and the first signal transmitting means and the second signal transmitting means are covered electric wires. By making them have a predetermined withstand voltage corresponding to the voltage (6600 V) supplied to the electric wire installed on the electric pole (height 10 m to 15 m) that is generally laid, contact with such electric wire, etc. In the unlikely event of an accident, the safety of the user is ensured.

Furthermore, in order to stably operate for a long time, the platform portion is intermittently driven by a pulse voltage to reduce power consumption. In addition, a power supply unit that supplies the power supply voltage for driving the main unit and the control power supply voltage for the camera platform will be provided. This power supply unit has a plurality of rechargeable batteries, and by switching the rechargeable batteries by detecting and comparing the voltage of each rechargeable battery, the power supply voltage of a predetermined voltage value is maintained. Can be supplied to Further, the main body part includes an internal battery, a voltage detecting means for transmitting a predetermined signal to the power source portion through the third signal transmitting means when the internal battery falls below a predetermined voltage, and the predetermined signal. Since it is equipped with power supply voltage control means that selects either the power supply voltage supplied from the supplied power supply unit or the power supply voltage from the built-in battery, the power supply voltage is continuously supplied to each load. be able to.

Furthermore, in order to adapt more appropriately according to the inspection work environment, a lighting means including a light emitting means and a light reflecting means is provided in the vicinity of the video camera section, so that it is not exposed to light or at night. Make inspection work easier. Further, since the supporting means is constituted by a dolly provided with wheels, and the locking means for substantially fixing the dolly is provided on the dolly, the inspection device can be easily moved, and Inspection work becomes possible.

[0021]

[Embodiment of device]

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

FIG. 1 is a perspective view showing an overall configuration of a first embodiment of an inspection device according to the present invention, in which 1 is a video camera, 2 is a platform, 3 is a first operation unit, and 4 is a display. Part, 5 is a second operation part, 6 is a main body part, 7 is a length adjusting means, 7a to 7g are cylindrical members (here, cylindrical columns), 7A to 7F are locking means, and 8 is Support means, 8a to 8c are legs, 8d is a monopole, 9 is a first signal transmitting means, 10 is a second signal transmitting means, 11 is a power source section, 12 is a connecting section, and 13 is a handle.

In the figure, in this embodiment, a video camera 1, a platform 2 for mounting the video camera 1 and tilting or panning, or tilting and panning the video camera 1, and a platform 2 are shown. A first operation unit 3 that is remotely operated, a recording unit (not shown) that records and reproduces a video signal output from the video camera 1 on a recording medium, and this video signal from the video camera 1 and this recording unit. A display unit 4 for displaying a reproduced video signal from the screen, a second operation unit 5 for performing optical zoom control and electric zoom control of the video camera 1, the recording unit, the display unit 4, and the second operation unit. 5 is a member that extends in order to move the main body 6 including 5 and the video camera 1 and the platform section 2 toward the inspection location. An adjustable length adjusting means 7, A support means 8 provided with a tripod consisting of leg portions 8a to 8c of the book to support the length adjusting means 7 on the ground, a monopole 8d attached to the supporting means 8, a length adjusting means 7 and a support. The connecting portion 12 that rotatably connects the monopole 8d of the means 8 by the length adjusting means 7 and the video camera 1 and the main body portion 6 can be connected even when the length adjusting means 7 is maximally extended. The first signal transmission means 9 having a line length and transmitting various signals between them, and similarly the length adjustment means 7 even when extended to the maximum, the platform part 2 and the first operation. Second signal transmission means having a wire length capable of connecting to the section 3 and transmitting a control signal for remotely operating the platform section 2 output from the first operation section 3 to the platform section 2. And a power supply unit 11 including a plurality of rechargeable batteries.

FIG. 2 is an enlarged perspective view showing a portion of the first operation unit 3 and the second operation unit 5 in FIG. 1, and shows a case where the platform 2 is tilt-controlled, Reference numeral 14 is a selection means, and parts corresponding to those in FIG.

In the figure, the first operation unit 3 has a display indicating the direction of remote operation of the platform 2 (FIG. 1) and a selection means 14 corresponding to each operation, and the second operation unit 3. 5, a selection means 15 corresponding to each operation related to zoom control of the video camera 1 (FIG. 1) is provided independently of each function 15a, 15b, 15c. The second operation unit 5 is also provided with other operation selection means for the display unit 4 and the recording unit described above.

The selecting means 14 of the platform unit 2 may be independent for each function, or may be a combination of a direction switching switch and a seesaw switch as shown in FIG. 2, or a pan and tilt function. If provided, cross-shaped selecting means may be adopted.

Further, as the selection means 15 regarding zoom control, one rotary switch is used, and by rotating the lever, for example, fast zoom-in → slow zoom-in → slow zoom-out → fast zoom-out (the direction of the arrow is reversible). ), Zoom-in, zoom-out and zoom speed may be continuously selected.

The basic effects of the present invention can be realized by providing at least a zoom-in / zoom-out function as described later.

In the embodiment having the structure shown in FIG. 1, the length adjusting means 7 is composed of a monopole in which seven stages of cylindrical columns 7a, 7b, 7c, 7d, 7e, 7f and 7g are combined. Locking means 7A, 7B, 7C, 7D, 7E, 7F are provided for each stage of the cylindrical columns 7a to 7g. In the cylindrical struts 7a to 7g, the outer diameter of the upper cylindrical stanchion is smaller than the inner diameter of the lower cylindrical stanchion between the two cylindrical struts in the upper and lower arrangement relations. Can be inserted into the lower cylindrical column.

The locking means 7A to 7F are configured as shown in FIG.

That is, referring to FIG. 5, the locking means 7C for connecting the cylindrical columns 7c and 7d will be described. The inner surface of the locking means 7C is provided with a screw portion provided on the outer surface of the end of the cylindrical column. A matching screw portion is provided, and by rotating the locking portion 7C, the locking step 7C can be moved up and down with respect to the cylindrical column 7d. The cylindrical column 7c is inserted inside the cylindrical column 7d.

Further, an upper portion of the locking means 7C is formed with a pressing portion 7C1 having an inner diameter substantially equal to the outer diameter of the cylindrical column 7c, and the space between the pressing portion 7C1 and the upper end surface of the cylindrical column 7d is formed. A plurality of contact pieces 7C2 are annularly arranged around the cylindrical column 7c in the pace. The inner surface of each of the contact pieces 7C2 is equal to the outer surface of the cylindrical column 7c, and a tapered surface is formed on the upper surface of the contact piece 7C2.

In such a configuration, when the locking means 7C is lowered with respect to the cylindrical column 7d by rotating the locking means 7C in one direction with respect to the cylindrical column 7d, the locking step 7C The pressing portion 7C1 comes into contact with the tapered surface of the contact piece 7C2 to press the contact piece 7C2 inward and press it against the outer surface of the cylindrical column 7c. As a result, the cylindrical support 7c is fixed in position with respect to the cylindrical support 7d. When the locking means 7C is raised with respect to the cylindrical column 7d by rotating the locking means 7C in the other direction, the pressing of the contact portion 7C2 of the pressing portion 7C1 of the locking means 7C is released. The contact piece 7C2 separates from the cylindrical support 7c. As a result, the cylindrical column 7c can be put in and out of the cylindrical column 7d, and the length of the length adjusting means 7 can be adjusted.

Note that instead of the plurality of contact pieces 7C2 arranged in an annular shape, an annular contact piece 7C2 having a shape like a spring washer and having one discontinuous portion may be used. A plurality of contact pieces 7C2 shaped like a chrysanthemum washer may be connected in an annular shape. In these cases as well, similar to the case where the plurality of contact pieces 7C2 are arranged in a ring shape, the inner surface and the tapered surface as described above are provided, and the cylindrical column 7c depending on the rotation direction of the locking means 7C. The cylindrical support 7c can be fixed in position with respect to the cylindrical support 7d by pressing it against the outer surface of the cylindrical support 7c, and the cylindrical support 7c can be moved in and out of the cylindrical support 7d apart from the cylindrical support 7c. To do so.

However, such a configuration of the length adjusting means 7 is merely an example, and the present invention is not limited thereto.

In FIG. 1, the connecting portion 12 has a plate shape, and one end thereof is fixed to an end portion of the monopole attached to the supporting means 8, and the other end thereof is the length adjusting means 7 (here, The length adjusting means 7 is rotatably attached to the connecting portion 12 on the lowest cylindrical column 7g). Further, a handle 13 is provided on any one of the cylindrical columns 7a to 7g (the lowest cylindrical column 7g in FIG. 1), and the handle 13 is mounted on a plane perpendicular to the central axis of the length adjusting means 7. By rotating it to the center, the length adjusting means 7 rotates about its central axis and the video camera can be manually panned.

The entire length adjusting means 7 is set to an arbitrary length by arbitrarily adjusting each step of the cylindrical columns 7a to 7g and fixing each step using the locking means 7A to 7F. be able to. Note that FIG. 1 shows a state in which the entire length adjusting means 7 has a certain length.

At the longest time, the length adjusting means 7 has a length obtained by subtracting the width dimension of each of the locking means 7A to 7F provided on each step from the total length of the cylindrical columns 7a to 7g. Therefore, for example, the length of each of the cylindrical struts 7a to 7g is designed to be about 1.2 m, and the width dimension of the locking steps 7A to 7F is designed to be 0.05 m. When the seven columns of cylindrical columns 7a to 7g are used, the longest dimension of the length adjusting means 7 is about 8.1 m. This is long enough to inspect the roof and outer wall of a general two-story building, and also allows you to inspect by overlooking overhanging parts such as bridge girders from above. The size is enough to do.

On the other hand, the supporting means 8 has a tripod composed of three leg portions 8 a to 8 c, and these leg portions 8 a to 8 c have a minimum two-stage structure having a stretchable structure similar to that of the length adjusting means 7. . This makes it possible to adjust the horizontal balance when installing the supporting means 8. Here, by increasing the thickness and diameter of the leg portions 8a to 8c constituting the tripod of the supporting means 8, their rigidity is increased, the locking means is reduced, the structure is simplified, and the cost is low. Can be reduced.

Considering the distance from the measurer to the inspection object, the length adjusting means 7 is set by the above method. By adjusting the position of the video camera 1 to a desired relative position with respect to the inspection object, and by remotely operating the platform section 2 as described later, the video camera 1 is moved to the desired relative position with respect to the inspection object. The object to be inspected can be imaged by adjusting the position of the video camera 1 and controlling the zoom by remotely controlling the video camera 1 as described later.

Further, the image of the inspection target imaged by the video camera 1 is transmitted as a video signal to the main body section 6 via the first signal transmission means 9 and is displayed on the display section 4 provided in the main body section 6. It This allows the inspection target to be inspected and observed in detail. Further, in the main body section 6, this video signal is supplied to the recording section and recorded on the recording medium so that the inspection content can be stored. It should be noted that the already recorded information can be repeatedly reproduced and displayed on the display unit 4 to check the inspection content again.

The method of remotely operating the platform part 2 is such that the platform part 2 and the first operating part 3 are separably connected via the second signal transmitting means 10, and the first operating part 3 is connected. Is operated by transmitting a control signal for remotely operating the camera platform section 2 from the first operation section 3 to the camera platform section 2.

When controlling the platform section 2 in one direction of panning or tilting, the first operating section 3 is provided with a selecting unit such as a switch corresponding to the panning or tilting direction, and the operation of this selecting unit is performed. Accordingly, it can be realized by supplying, as a control signal, a voltage for rotating the motor built in the platform unit 2 at a predetermined speed in the forward or reverse direction.

When controlling the pan / tilt head 2 in two directions of pan and tilt, for example, the pan / tilt head 2 is configured by two motors, and the pan / tilt direction corresponding to the first operation portion 3 is supported. This can be realized by providing selection means such as switches for controlling each of them, and supplying as a control signal a voltage for rotating the built-in motor forward or backward at a predetermined speed to the platform section 2 in accordance with the operation of these selection means. .

The platform part 2 can also be realized by a drive motor and a rotation direction switching means. In this case, the first operating section 3 is provided with a selecting means for selecting a rotation direction and a pan and tilt switching means, respectively, and a control voltage according to the selection result of these means is supplied to the camera platform 2. realizable.

The form of the platform part 2 is not a feature of the present invention, but any platform part 2 of any form is provided with a corresponding selection means such as a switch and corresponding to the operation of the selection means. By providing the operation section that supplies the control voltage for controlling the platform section 2, remote operation of the platform section 2 can be realized.

As described above, the handle 13 is provided on any one of the cylindrical struts 7 a to 7 g forming the length adjusting means 7, and the handle 13 is arranged orthogonal to the central axis of the length adjusting means 7. Since the length adjusting means 7 can be rotated around the central axis by rotating the central axis about the central axis in the plane, the video camera 1 can be panned even if the handle 13 is operated. You can

Here, by using a pulse voltage as the motor drive control voltage and the switching control voltage of the platform portion 2, it is possible to reduce the power consumption, thereby reducing the power consumption of the entire device and extending the battery life. Therefore, the inspection time can be extended.

Further, in the method of remotely operating the video camera 1, the video camera 1 and the second operation unit 5 are separably connected via the first signal transmission means 9, and the second operation unit 5 is connected. The operation is performed by transmitting a control signal for remotely operating the video camera 1 from the second operation unit 5 to the video camera 1. The second operation unit 5 is provided with a selection unit such as a switch that corresponds to the zoom-in control and the zoom-out control of the video camera 1 optically and electrically, and the optical operation of the video camera 1 is performed according to the operation of the selection unit. It can be realized by supplying a voltage for adjusting the electrical imaging magnification to the desired magnification as a control signal.

In this embodiment, the monopole forming the length adjusting means 7 is composed of seven cylindrical columns, but the number of cylindrical columns and their length are arbitrary. Needless to say.

FIG. 4 is a perspective view showing the overall configuration of a second embodiment of the inspection device according to the present invention. 2a is a stand, 7a1 to 7g1, 7a2 to 7g2 are cylindrical columns, and 7A1 to 7F1 are Locking means, 71 to 72 are monopoles, 12a and 12b are plate-like parts, and the same reference numerals are given to the parts corresponding to FIG.

In this embodiment (a), the length adjusting means 7 is formed by two monopoles 71 and 72 in this embodiment, and the pole 71 is a cylindrical column 7 a 1 to 7 g having 7 stages. 1, and the pole 72 is also configured to be extendable / contractible by seven-stage cylindrical columns 7a2 to 7g2.

Then, the same locking means 7A ′ is provided between the cylindrical columns 7a1 and 7b1 of the monopole 71 and between the cylindrical columns 7a2 and 7b2 of the monopole 72, for example, as shown in FIG. Similarly, between the cylindrical struts 7b1 and 7c1 and between the cylindrical struts 7b2 and 7c2 is the same locking means 7B ', and between the cylindrical struts 7c1 and 7d1 and between the cylindrical tubular struts 7c2 and 7d2. Are the same locking means 7C ', and between the cylindrical struts 7d1, 7e1 and between the cylindrical struts 7d2, 7e2 are the same locking means 7D', between the cylindrical struts 7e1, 7f1 and the cylindrical struts 7e2, 7f2. The same locking means 7E 'is used to lock the cylindrical columns 7f1 and 7g1 and the cylindrical columns 7f2 and 7g2 are locked to the same locking means 7F'. Therefore, the monopoles 71 and 72 are connected by the locking means 7A 'to 7F'.

Further, a stand 2a is provided so as to extend between the upper ends of the cylindrical support 7a1 of the monopole 71 and the cylindrical support 7a2 of the monopole 72, and the platform 2 and the video are mounted on the stand 2a. The camera 1 is mounted.

With this configuration, the monopoles 71 and 72 are expandable and contractible, and thus the length adjusting means 7 has its length arbitrarily variable.

The length adjusting means 7 is rotatably connected to the monopole 8 d attached to the supporting means 8 by a T-shaped connecting portion 12. Here, the connecting portions 12 are attached to the lowermost cylindrical columns 7g1 and 7g2 of the monopoles 71 and 72 at two locations. Therefore, by rotating the length adjusting means 7 around the monopole 8d of the supporting means 8 in the same manner as operating the handle 13 in the first embodiment shown in FIG. Can be panned around this monopole 8d. Therefore, in this case, since the platform part 2 can be simplified to have only the tilt mechanism, the platform part 2 can be lightened and the weight distribution can be improved by lowering the center of gravity of the device.

Alternatively, as shown in FIG. 4 (b), as the connecting portion 12, the plate-shaped portions 12 a having their respective ends fixed to the cylindrical columns 7 g 1 and 7 g 2 and the inside of the plate-shaped portion 12 a. One end may be rotatably attached to the core part and the other end may be composed of a plate-like part 12b fixed to the monopole 8d of the supporting means 8. By rotating the adjusting means 7 around the vertical center line between the two monopoles 71 and 72, the video camera 1 can be panned around this vertical center line.

Further, since the length adjusting means 7 is composed of the two monopoles 71 and 72, the connecting direction of these poles 71 and 72, that is, the longitudinal direction of the locking means 7A 'to 7F'. The flexural strength of the video camera increases, and as a result, the direction in which the flexural strength is large is made orthogonal to the optical axis direction of the video camera 1, and the force orthogonal to the optical axis of the video camera 1 is reduced. Thus, it is possible to reduce the screen shake of the display unit 4 due to this force.

In this embodiment, the length adjusting means 7 is composed of two monopoles. However, the length adjusting means 7 may be composed of more monopoles, or each monopole has a cylindrical shape. It goes without saying that the number of columns and the length of each column are also optional as long as they are equal between the monopoles.

FIG. 5 is a diagram showing a state in which the video camera 1 and the camera platform portion 2 in the first embodiment shown in FIG. 1 are attached. FIG. 5 (b) shows the case where the uppermost side surface of the uppermost cylindrical column 7a of the means 7 is attached, and FIG. 5 (b) shows the case where the platform part 2 is also attached to the top of the cylindrical column 7a, and 16 indicates the signal. The transmission cable 17 is a wire fixing means, and the parts corresponding to those in FIG.

In the example shown in FIG. 5A, the platform 2 is fixed to the upper side surface of the cylindrical column 7 a, and the video camera 1 is attached to the side surface of the platform 2. Further, a signal transmission cable 16 is connected to the tip of the first signal transmission means 9, and this signal transmission cable 16 is connected to the back side of the video camera 1 opposite to the imaging surface side. The signal transmission cable 16 is fixed near the top of the cylindrical column 7a by a wire rod fixing means 17 which is a wire rod. Therefore, in this case, the video camera 1 and the main body 6 are connected by the first signal transmitting means 9 and the signal transmitting cable 16.

In the example shown in FIG. 5B, the camera platform 2 is fixed to the upper side surface of the cylindrical column 7 a, and the video camera 1 is attached to the upper surface of the camera platform 2. Further, the first signal transmitting means 9 is connected to the back side of the video camera 1 opposite to the imaging surface side, and the first signal transmitting means 9 is directly under the platform table 2 near the top of the cylindrical support 7a. It is fixed to the wire by wire rod fixing means 17 which is a wire rod. Therefore, in this case, the video camera 1 and the main body portion 6 are connected by the first signal transmission means 9.

In FIGS. 5A and 5B, the camera platform 2 is functionally capable of tilting, panning, or tilting and panning, and rotates the video camera 1 up and down about the axis TT ′. Then, the video camera 1 is tilted, and the length adjusting means 7 is rotated, so that the video camera 1 is rotated left and right about the axis P-P 'to pan. The plane of A ₁ -A ₂ -A ₁ '-A ₂ ' is a plane that includes the axis P-P 'and is perpendicular to the axis T-T', and its optical axis when the video camera 1 tilts. Changes direction along this plane.

If the wire rod fixing means 17 is not provided, the first signal transmitting means 9 and the signal transmitting cable 16 are pulled in the gravity direction G indicated by the downward arrow ↓, so that the light of the video camera 1 is emitted. When the axis is tilted downward, the turning force in the opposite direction is applied to the video camera 1 by the weight of these cables 9 and 16 as the tilt proceeds, and tilting is restricted and mechanical tilting is possible. It becomes impossible to direct the optical axis of the video camera 1 downward to the lower limit of the range.

Further, since the load is continuously applied to the drive system inside the camera platform 2 and the video camera 1, the reliability of the apparatus may be impaired.

In order to solve the above-mentioned problems, to utilize the mechanical specifications sufficiently and to secure a wide inspection range, the wire rod fixing means 17 as the clamping means is provided. In both of the examples of FIGS. 5A and 5B, the wire rod fixing means 17 is such that the weights of the respective cables 16 and 9 on the main body portion 6 (FIG. 1) side from the mounting portion of the wire rod fixing means 17 are equal to each other. This is to prevent the video camera from joining.

Similarly, in order to protect the connection portion between the platform portion 2 and the second signal transmitting means 10, the second signal transmitting means 10 and the connection between the second signal transmitting means 10 and the platform portion 2 are connected. It is effective to clamp the cable by the wire rod fixing means 17 or a means equivalent thereto.

FIG. 6 is a perspective view showing a state in which the first embodiment shown in FIG. 1 is conveyed, and parts corresponding to those in FIG. 1 are designated by the same reference numerals.

As shown in the figure, when carrying, the length adjusting means 7 is adjusted to the shortest length by adjusting the locking means 7A to 7F and pushing the cylindrical columns 7a to 7g into each other. Align and fix. Also, with regard to the supporting means 8, the leg portions 8a to 8c of the tripod are also contracted and adjusted to the shortest length. In this case, the length of the supporting means 8 is shorter than the length of the lowermost cylindrical pillar 7g of the length adjusting means 7, and the tips of the legs 8a to 8c are retracted more than the cylindrical pillar 7g. As a result, the dimension of the entire inspection device during transportation becomes equal to the shortest dimension of the length adjusting means 7.

At the shortest time, the length adjusting means 7 becomes as short as the sum of the width dimensions of the locking means provided at each stage to the length of one cylindrical support pillar. When the length of one step of 7 g is designed to be about 1.2 m and the width dimension of the locking means 7A to 7F is designed to be 0.05 m, the shortest dimension when the length adjusting means 7 is 6 steps is about 1. It will be about 6 m. Also, in the state where the 6m ladder at the time of extension used for conventional visual inspection is folded, it is about 3.6m in consideration of the overlapping margin of each step in case of 2-step folding, for safety. Compared with this, the shortest dimension of 7 is much shorter, which makes it easier to transport and has the advantage of not requiring a storage place.

FIG. 7 is a perspective view showing the overall configuration of a third embodiment of the inspection device according to the present invention. FIG. 7 (a) shows the overall configuration, and FIG. 7 (b) shows the same configuration (a). 1 is enlarged and shown, respectively, and 18 is a universal platform, and the portions corresponding to those in FIG. 1 are designated by the same reference numerals and their duplicate description will be omitted.

In this figure, in this embodiment, the remote control function of the platform section 2 used in the first embodiment shown in FIG. 1 is deleted, and the entire apparatus is rationalized and lightened. This is very effective when the inspection work is limited to a specific one.

In this third embodiment, a universal platform 18 is fixed to the top of the uppermost cylindrical column 7a of the length adjusting means 7, and the video camera 1 is attached to this. Then, the video camera 1 is fixed in advance to a predetermined angle by the pan head 18, so that the remote control of the pan section 2 in the first embodiment shown in FIG. 1 can be eliminated.

However, also in the third embodiment, the handle 13 is provided on the cylindrical support column which constitutes the length adjusting means 7, and the handle 13 is rotated in a plane orthogonal to the central axis of the length adjusting means 7. By doing so, the length adjusting means 7 can be rotated about its central axis, so that the video camera 1 can be manually panned by operating the handle 13.

Moreover, since the zoom control of the video camera 1 can be remotely operated by the second operation unit 5 while checking the monitor image of the display unit 4, for example, the inspection range is relatively narrow. Alternatively, it can be reasonably applied to inspection work in which a necessary and sufficient field of view can be obtained without tilt control.

Next, a specific example of a method of stabilizing the inspection image displayed on the display unit 4 in the first embodiment shown in FIG. 1 and the third embodiment shown in FIG. 7 will be described. .

As shown in FIG. 8, in these embodiments, since the video camera 1 is mounted on the tip of the length adjusting means 7, it is easy to apply a force from each direction to the video camera 1 during inspection work. It is in. As a result, it is assumed that the optical axis of the video camera 1 is unlikely to be constant, and the imaged image displayed on the display unit 4 fluctuates vertically and horizontally, which makes inspection work difficult. A particular problem is the roll of the monitor image, which makes it difficult to determine the viewpoint and makes inspection work extremely difficult.

Therefore, in the embodiment shown in FIGS. 1 and 7, a camera shake correction function is provided as one of the methods for stabilizing the inspection image displayed on the display unit 4.

As a method thereof, for example, the video camera 1 is provided with an image pickup device for picking up an image having a screen size larger than the screen size displayed on the display unit 4, and a detection means such as an angular velocity sensor is further provided. A plurality of units are provided to detect the vertical and horizontal shake directions and shake amounts of the video camera 1, and the detected values are calculated to calculate the shake correction amount, and the image sensor is enabled according to the correction amount. There is a method for obtaining a stable display image by controlling the light-to-image signal conversion control by controlling the area and coordinates.

In addition, when the captured video signal is sampled at every unit time using the frame memory, continuous video signals are compared, and when displacement (sway) of the entire screen is detected, the frame memory is used. There is a method to output a stable part of the video signal, and perform expansion correction to the effective screen size to obtain a stable display image.

Furthermore, a camera shake correction function by a method other than these methods can be used, and the screen shake of the display unit 4 due to the force orthogonal to the optical axis of the video camera 1 can be reduced.

FIG. 9 is a view showing a fourth embodiment of the inspection device according to the present invention using still another method for stabilizing the inspection image displayed on the display unit 4.

In this embodiment, the support poles forming the monopole of the length adjusting means 7 are not cylindrical support poles, but their transverse cross-sectional shapes are specified so that the flexural strength becomes large. As a result, the displayed inspection image is stabilized.

In FIG. 9A, an arrow P indicates a rotation center axis when panning the video camera 1, and an arrow T indicates a rotation center axis when tilting the video camera 1. The plane A ₁ -A ₂ -A ₁ '-A ₂ ' is a plane that includes the axis P and is perpendicular to the axis T, as described above, along which the video camera 1 tilts. Direction B-B is orthogonal to the _{A 1 -A 2 -A 1 '-A} 2'. Here, the flexure strength of the length adjusting means 7 is increased in the BB direction, and the BB direction is always the direction orthogonal to the optical axis of the video camera 1. It is a thing.

FIG. 9B shows a specific example for increasing the bending strength of the length adjusting means 7 in the BB direction. The specific example shown in (1) is The cross section of the pillar forming the monopole of the height adjusting means 7 is formed into a substantially circular shape, and the recessed portion 7X is provided in two facing portions. That is, the support column has a substantially cylindrical shape, and the recessed portion 7X is provided in two opposing parts along the longitudinal direction of the support column. In such a column, the direction connecting the recesses 7X has a large flexural strength. Therefore, this direction is taken as the BB direction in FIG. 9A. Note that a convex portion may be provided instead of the concave portion 7X.

In the specific example shown in (2) of FIG. 9B, the cross section of the pillar forming the monopole of the length adjusting means 7 is rectangular. That is, the pillar is formed in a rectangular tube shape. In such a column, the direction along the long side of this rectangle is the direction in which the deflection is large. Therefore, this direction is referred to as the BB direction in FIG. 9A.

In the specific example shown in (3) of FIG. 9B, the cross section of the pillar forming the monopole of the length adjusting means 7 is elliptical. That is, the pillar is formed into an elliptic cylinder. In such a column, the direction along the major axis of this ellipse is the direction of great deflection, and therefore this direction is taken as the BB direction in FIG. 9 (a).

The specific example shown in (4) of FIG. 9B corresponds to the second embodiment previously shown in FIG. 4, and as an example, the locking means 7A ′ in FIG. Is shown. In this case, as described above, the longitudinal direction of the locking means 7A ', that is, the direction connecting the centers of the cylindrical columns 7a1 and 7a2 is the direction in which the deflection is large. It is assumed to be the BB direction in FIG. 9A (note that FIG. 9A shows that the length adjusting means 7 is composed of one monopole, but in the BB direction, Also in the second embodiment shown in FIG. 4, the direction is perpendicular to the optical axis of the video camera 1.).

By doing so, the force in the direction orthogonal to the optical axis of the video camera is reduced, and the screen shake of the display unit 4 due to this force can be reduced. Even when the video camera 1 is panned manually by rotating the length adjusting means 7 with the handle 13 or the like, the length adjusting means 7 always keeps the bending strength in the optical axis direction of the video camera 1. Is arranged in a direction orthogonal to the optical axis direction of the video camera 1. Therefore, the force in the direction orthogonal to the optical axis of the video camera 1 is reduced, and the lateral vibration of the screen of the display unit 4 due to this force can be reduced.

It should be noted that what is shown in FIG. 9B is an example, and the present invention is not limited to this, and basically, the direction in which the bending strength of the length adjusting means 7 is large is orthogonal to the optical axis direction of the video camera 1. It is a feature of the present invention that it is arranged in the direction in which it is operated.

Further, when the platform part 2 is rationalized and the platform part 2 can be remotely operated and has only the tilt function, or the platform part is a universal platform 18 as shown in FIG. Yes, it is very effective when the video camera is arranged as described above.

FIG. 10 is a view showing a usage state of the fifth embodiment of the inspection device according to the present invention using still another method for stabilizing the inspection image displayed on the display unit 4. FIG. 7A shows the case where the length adjusting means 7 is used in a slanted manner, and FIG. 7B shows the case where the length adjusting means 7 is used in the same sideways, and 19 is the second supporting means. The same symbols are attached to the parts corresponding to the above drawings.

In this embodiment, the uppermost strut (cylindrical strut or a cylindrical strut as described in FIG. 9B) of the length adjusting means 7 or a strut below it is provided in the axial direction of this strut. A second support that is rotatable in a plane intersecting with each other and supports the length adjusting means 7 at a certain distance from the column so that it can be fixed at any position with respect to the axial direction of the column. A means 19 is provided, and at the time of inspection work, by installing this second support means 19 around the inspection location, the stress orthogonal to the optical axis direction of the video camera 1 is absorbed and displayed on the display unit 4. It is designed to reduce the fluctuation of the monitor image.

Here, the length adjusting means 7 is configured to be detachable from the monopole 8d of the supporting means 8. For this reason, for example, in the lower connecting portion 12 fixed to the monopole 8d, a cylindrical protrusion having a diameter slightly smaller than the inner diameter of the cylindrical column 7g of the length adjusting means 7 is provided at the end thereof. The end of the cylindrical column 7g is rotatably attached to and supported by the lower connecting portion 12 so that the projection is fitted into the cylindrical column 7g. The upper connecting portion 12 is fixed to the upper end of the monopole 8d. When removing the length adjusting means 7 from the monopole 8d, the length adjusting means 7 may be lifted and pulled out from the upper connecting portion 12. When the length adjusting means 7 is attached to the monopole 8d, of course, the reverse operation to the above may be performed.

FIG. 10A shows a case in which the length adjusting means 7 is supported obliquely by the second supporting means 19 and is inspected, and FIG. 10B shows the second adjusting means 7. The case where the length adjusting means 7 is supported by the supporting means 19 and is set in the horizontal direction for inspection is shown.

In particular, when used as shown in FIG. 10B, the length adjusting means 7 is separated from the supporting means 8, and the second adjusting means 19 supports the length adjusting means 7, In this state, the length adjusting means 7 can be rotated around its axis. That is, the length adjusting means 7 is supported by the second supporting means 19 so as to be rotatable about its axis. Thereby, the second supporting means 19 has a function as a pedestal when the video camera 1 is manually panned using the handle 13.

Note that the structure of the second supporting means 19 shown here is an example, and the structure is not limited to that shown in the figure, and it is the present proposal to have such second supporting means. Is a feature of.

FIG. 11 is a view showing a sixth embodiment of the inspection device according to the present invention capable of ensuring safety in use. 7d ′ is a cylindrical support, which corresponds to the above-mentioned drawing. Are given the same symbols. Here, FIG. 11A shows the entire configuration of this embodiment, and FIG. 11B shows the main part thereof.

In FIGS. 10A and 10B, at least one of the cylindrical support columns 7 a to 7 g forming the monopole of the length adjusting means 7 is provided with a support rod made of a non-conductive material ( In FIG. 11, the cylindrical support 7d ′ is made of a non-conductive material) or a support formed by coating the non-conductive material on the outer periphery, and the platform 2 and the supporting means 8 are The pan head portion 2 and the support means 8 are electrically insulated from each other by the length adjusting means 7 extending over the space.

This embodiment is a cylindrical column made of an insulating material having a predetermined withstand voltage that at least corresponds to a voltage (6600 V) supplied from a generally laid utility pole (height 10 m to 15 m), or By using a cylindrical column that is insulation-coated with such an insulating material, the user's safety is ensured even in the unlikely event of an accident, such as the tip of the length adjusting means 7 touching an electric wire.

Similarly, as the first signal transmitting means 9 and the second signal transmitting means 10, a covered electric wire having a predetermined withstand voltage is used to ensure user's safety.

FIG. 12 is a block diagram showing a specific example of the power supply unit 11 in the above-described embodiment. 201 to 20N are rechargeable batteries, 21 is a power supply control means, 22 is a voltage detection means, and 23. Is a voltage comparing means, and 24 is a battery switching means, and the same reference numerals are given to the portions corresponding to the above drawings.

In the figure, the power supply unit 11 is provided with a plurality (N) of rechargeable batteries 201 to 20N. The voltage control means 21 comprises a voltage detection means 22, a voltage comparison means 23 and a battery switching means 24.

Each voltage of the rechargeable batteries 201 to 20N charged to a predetermined voltage value is detected by the voltage detecting means 22, and these are compared by the voltage comparing means 23. The rechargeable battery having the highest voltage value out of the battery voltages is selected and supplied to the camera platform 2, the main body 6, and the like as a power supply voltage.

The simplest configuration of the power supply control means 21 is to use a diode OR circuit composed of a diode to which the power supply voltage is supplied to each of the rechargeable batteries 201 to 20N, to which various protection circuits are added. This can be realized by outputting the power supply voltage from the rechargeable battery having the highest voltage value and using it as the power supply voltage for the platform 2 and the main body 6.

As described above, when the voltage value of the rechargeable battery used is lowered, the rechargeable battery having a higher voltage value is sequentially switched to another, so that the inspection device can be used for a long time.

FIG. 13 is a block diagram showing a specific example of the main body 6 in the above-described embodiment together with the power supply unit 11, in which 25 is a built-in battery, 26 is a voltage detecting means, and 27 is a power supply voltage controlling means. , 28 are various loads such as the display unit 4, and the same reference numerals are given to the portions corresponding to FIG.

In the figure, the main body 6 includes a built-in battery 25, a voltage detecting means 26 for detecting the voltage value thereof, a power supply voltage control means 27 and various loads 28. The voltage detecting means 26 is When the built-in battery 25 of the main body 6 falls below a predetermined voltage, a predetermined signal S is output. The power supply voltage control means 27 of the main body portion 6 is supplied with the power supply voltage from the power supply portion 11 and the power supply voltage from the built-in battery 25 in advance. Normally, the power supply voltage control means 27 is powered by the built-in battery 25. The voltage is selected and used. Further, a third signal transmitting means 26a is provided in the main body portion 6, and when the built-in battery 25 falls below a predetermined voltage, the voltage detecting means 26 causes the third signal transmitting means 26a to move. A predetermined signal S is supplied to the power supply voltage control means 27 via the power supply voltage control means 27, and the power supply voltage control means 27 is controlled by the predetermined signal S, so that the power supply voltage from the power supply unit 11 can be used in place of the internal battery 25. The load 28 is used as a power supply voltage.

The third signal transmission means 26a is provided between the main body portion 6 and the power supply portion 11, and when the built-in battery 25 falls below a predetermined voltage, the voltage detection means 26 outputs the predetermined signal S Is supplied to the power supply control means 21 of the power supply section 11 via the third signal transmission means 26a, and the power supply control means 21 is selected as described in FIG. 12 in response to this predetermined signal. The output voltage of the rechargeable battery is sent as a power supply voltage to the voltage control means 27 of the main body 6, and this power supply voltage control means 27 is, for example, an OR circuit of the power supply voltage from the internal battery 25 and the power supply voltage from the power supply portion 11. By this, the power supply voltage supplied from the power supply unit 11 can be automatically selected and used as the power supply voltage of various loads 28 such as the display unit.

In this way, in this specific example, the main body 6 preferentially uses the built-in battery 25, and when the built-in battery 25 is exhausted, the power supply voltage is continuously supplied from the power supply 11 to the main body 6. Can be supplied.

FIG. 14 is a block diagram showing a specific example of the power supply means for the platform 2 and the main body 6 in each of the embodiments described above, in which 29 is a voltage switching means and 30 is an external power supply connection. Reference numeral 31 denotes a voltage converting means, and the same reference numerals are given to the portions corresponding to the above drawings.

In the figure, the external power supply voltage supplied from an external power supply (not shown) through the external power supply connection section 30 and the rechargeable battery 20 of the power supply section 11 (rechargeable batteries 201 to 20N in FIG. The power supply voltage from the generic name) is selectively switched by the voltage switching means 29, and is supplied to the pan head portion 2, the main body portion 6, and the electric load such as a light emitting means described later. Here, the platform part 2 and the main body part 6 are shown as objects to which the power supply voltage is supplied.

If an external power source is connected to the external power source connecting section 30 and the power source section 11 and the external power source voltage is within the voltage specification value of the rechargeable battery 20 in the power source section 11, this external power source is directly used. By supplying the power supply voltage to the power supply switching means 29 through the external power supply connection unit 30, there are a case where the predetermined power supply voltage is constantly supplied from the external power supply and a case where the rechargeable battery in the power supply unit 11 is used. You may make it selectable.

Further, when the external power supply voltage is different from the voltage specification value of the rechargeable battery 20 of the power supply unit 11, the external power supply connection unit 30 is made to match the external power supply voltage with the voltage specification value of the rechargeable battery 20. The voltage converting means 31 for converting into the voltage may be provided, and the external power supply voltage may be converted by the voltage converting means 31 and supplied to the voltage switching means 29. Further, it goes without saying that the voltage switching means 29 does not have to be included in the power supply unit 11, and even if the voltage switching unit 29 is connected independently of the power supply unit 11, the same effect can be obtained.

Further, in FIG. 14, the electric loads such as the main body portion 6 and the platform portion 2 are designed to be driven by, for example, direct current 12V, and the rechargeable batteries 201 to 20N constituting the power source portion 11 are configured accordingly. If the voltage specification center value of 12V is designed to be 12V, it is assumed that a vehicle equipped with a battery of about 12V is used as an external power source, for example, a cigarette lighter power source terminal is used, and the external power source connecting portion 30 is provided with a commercial power source, etc. In addition to the connection terminal of the first external power supply of, the connection terminal of the specification that matches the power supply terminal for the cigarette lighter as the second external power supply is provided. The power supply voltage from the cigarette lighter power supply terminal is directly supplied to the voltage switching means 29 through the external power supply connection section 30 by connecting the By switching the switching means 29, it is possible to supply an external power supply voltage substantially equal to the voltage value 12V of the rechargeable battery in the power supply unit 11 to the inspection device from the power supply terminal for the cigarette lighter (that is, from the vehicle battery). This enables inspection work for a longer period of time.

On the other hand, as the first external power source, for example, a household AC 100V commercial power source or a power AC 200V commercial power source can be used, and the rechargeable battery of the power source unit 11 can be used. When the center value of the voltage specification is 12V DC, the connection terminal for connecting the first external power supply is, for example, a 2-core power plug or an adapter with a 3-core with an additional ground terminal Use the corresponding power plug. When such a power plug is connected to the commercial power source which is the first external power source, the external power source connecting section 30 rectifies and smoothes the commercial AC voltage into a DC voltage, and further this direct voltage is converted into a voltage. The conversion means 31 converts it into a DC voltage of 12 V and supplies it to the voltage switching means 29. By switching the voltage switching means 29, it is possible to supply the external power supply voltage from the commercial power supply to the inspection device, which is approximately equal to the voltage value 12V of the rechargeable battery in the power supply unit 11. As a result, the inspection work can be performed for a longer time.

As described above, according to this specific example, it is possible to realize an inspection device that can be used for a longer period of time as compared with the specific example shown in FIG.

FIG. 15 is a diagram showing a seventh embodiment of the inspection device according to the present invention, in which FIG. 15A shows one usage state thereof, and FIG. 15B shows the main part of FIG. 32 is an illuminating means, 33 is a light reflecting means, and 34 is a light emitting means, and the parts corresponding to those in the above drawings are denoted by the same reference numerals.

In FIG. 15A, the illumination means 32 is provided near the video camera 1. As shown in FIG. 15B, the illuminating means 32 is composed of a light emitting means 34 and a light reflecting means 33, and is arranged near the video camera 1. The light emitting means 34 emits light from the rear of the video camera 1 toward the optical axis direction of the video camera 1, and the light reflecting means 33 slides, for example, in the direction of the arrow in the figure, or opens the outer portion of the shade. When closed, the amount of light emitted by the light emitting means 34 and the irradiation range of the light are adjusted.

As described above, by providing the lighting means 32, it is possible to improve the working environment in which the brightness of the surroundings becomes a problem in night work, inspection in the duct, underfloor inspection, and the like.

FIG. 16 is a diagram showing an eighth embodiment of the inspection device according to the present invention. FIG. 16 (a) shows the entire structure and FIG. 16 (b) shows an enlarged main part A thereof. Reference numeral 34 is a horizontal balance display means, and the parts corresponding to those in the above drawings are designated by the same reference numerals.

As shown in FIG. 16 (a), this embodiment also has the same overall configuration as each of the above-described embodiments, but as shown in FIG. 16 (b), the length of the supporting means 8 is long. The horizontal balance display means 34 for displaying the horizontal balance is provided on the pedestal portion 8d to which the height adjusting means 7 is connected.

As an example of the horizontal equilibrium degree display means 34, a semitransparent container is filled with a liquid, and a small amount of substance that is not assimilated with the liquid and has a specific gravity smaller than that of the liquid is mixed in the container. It is a thing. Due to the relationship of specific gravities, this substance having a low specific gravity has a property of always showing an upward direction in which the gravity in the container is not applied, and the horizontal equilibrium degree display means 34 uses this. The horizontal equilibrium display means 34 is attached to the supporting means 8 at a position where the supporting means 8 is easily visible, whereby the horizontality of the supporting means 8 itself can be easily and accurately confirmed.

When the length adjusting means 7 is extended vertically from the surface of the ground and used in a crane camera state, the center of gravity of the entire device becomes high, so the entire device depends on the condition of the floor on which the supporting means 8 is installed. The stability of is likely to be impaired. Therefore, the horizontal equilibrium display means 34 confirms the horizontal equilibrium between the floor surface on which the supporting means 8 is installed and the supporting means 8. If the horizontal equilibrium degree is not balanced, the leg portion 8a of the supporting means 8 is confirmed. By adjusting the length of the leg part in the corresponding direction of ~ sc, it is possible to install the supporting means 8 in equilibrium with the floor surface and to stabilize the entire device, which is more stable. The inspection work can be performed in this state.

FIG. 17 is a perspective view showing the overall configuration of a ninth embodiment of the inspection device according to the present invention. FIG. 17 (a) shows the state in which the length adjusting means 7 is used horizontally. The figure (b) also shows the state of being used in the vertical direction, respectively, and 35 is a dolly, 36 is a dolly locking means, 37a and 37b are guide portions, and 38 is a wheel, which correspond to the above drawings. The same reference numerals are given to the parts that are shown.

In FIGS. 17 (a) and 17 (b), this embodiment is a trolley that is equipped with a plurality of wheels 38 instead of the support means 8 in the previous embodiments and is movable on the ground or floor. 35 is used. The trolley | bogie 35 can install the length adjustment means 7 so that attachment or detachment is possible. Further, the carriage 35 can be fixed at any place by the carriage locking means 36 provided on the carriage 35. A guide portion 37a is vertically fixed on the carriage 35, and a guide portion 37b is horizontally attached near the top of the guide portion 37a. Further, the guide portion 37a is provided with the main body portion 6 including the display portion and the operation portion as shown in FIG. 1, the power source portion 11 and the like.

In the case of FIG. 17 (a), the length adjusting means 7 is inserted and attached to the vertical guide portion 37a, and the length adjusting means 7 is supported in a vertical state. In such a supported state, the length adjusting means 7 can be rotated around its central axis. Accordingly, by operating the handle 13 provided on the length adjusting means 7, the length adjusting means 7 is rotated about its central axis, and the video camera 1 is manually panned in a horizontal plane. You can

In the case of FIG. 17B, the length adjusting means 7 is inserted and attached to the horizontal guide portion 37b, and the length adjusting means 7 is supported in a horizontal state. Even in such a supported state, the length adjusting means 7 can be rotated about its central axis. Accordingly, by operating the handle 13 provided on the length adjusting means 7, the length adjusting means 7 is rotated about its central axis, and the video camera 1 is manually panned in a vertical plane. Can be made.

As described above, in this embodiment, the inspection work can be performed while moving by the carriage 35, and the length adjusting means 7 can be turned vertically or horizontally to rotate about its central axis. The video camera 1 can be manually panned. Therefore, the pan function of the platform part 2 is not required, and it is effective for inspection work performed by partially rationalizing the device and translating it in the longitudinal direction of the facility and inspection work with deep places such as ducts. Become.

In addition, during setup, it is easy to move to the inspection place and after the inspection is completed, and the weight of the trolley 35 lowers the center of gravity of the entire device, increasing the stability of the entire device. There are also advantages.

Note that the guide portion 37a in FIG. 17 may be configured to be expandable and contractible. In this case, when the length adjusting means 7 shown in FIG. 17 (b) is used sideways, the height of the video camera 1 can be adjusted according to the height of the inspection object.

The dolly 35, the dolly locking means 36, and the guide portion 37 shown in FIG. 17 are merely examples, and for example, when the dolly has two or more wheels and legs on the bottom surface and moves. Move the legs by folding or inclining them so that they do not touch the floor surface, and when fixing the dolly, contact it with the floor surface and use it as the trolley locking means. Can be combined.

Further, as the guide portion, the length adjusting means 7 can be rotated 90 degrees with the length adjusting means 7 fixed in its longitudinal direction, and the length adjusting means 7 can be rotated in the vertical and horizontal directions by a simple operation. Alternatively, the direction of the video camera 1 may be set. In this case, by allowing the inclination angle of the guide portion to be arbitrarily set, it becomes possible to use the length adjusting means 7 in an inclined manner.

[0134]

[Effect of device]

 As described above, according to the present invention, such as roofs and gutters of rain gutters and ventilation holes in low-rise buildings such as ordinary houses and facilities, and the surroundings of facilities that are difficult to observe and inspect from the ground, An inspection device that inspects the outer wall surface of the facility and the inside of the facility in detail using imaging means such as a video camera has the portability that it can be used outdoors. In addition, it is possible to perform highly objective inspection and recording regardless of the inspector's skill level, reduce the influence of the weather, and display, record, and reproduce stable images with simple operations. With consideration for safety against electric shock, it can be used for a long time, and it can be constructed at a small size, light weight and at low cost.

[Brief description of drawings]

FIG. 1 is a perspective view showing an overall configuration of a first embodiment of an inspection device according to the present invention.

FIG. 2 is an enlarged perspective view showing a main body portion and each operation portion and its periphery in FIG.

3 is a sectional view showing a locking means of the length adjusting means in FIG.

FIG. 4 is a perspective view showing the overall configuration of a second embodiment of the inspection device according to the present invention.

FIG. 5 is a perspective view showing a mounting state of a video camera or the like at the tip portion of the length adjusting means in the first embodiment shown in FIG.

FIG. 6 is a perspective view showing a state of carrying the sheet according to the first embodiment shown in FIG.

FIG. 7 is a perspective view showing the overall configuration of a third embodiment of the inspection device according to the present invention.

FIG. 8 is an explanatory diagram showing stress applied to the video camera of the inspection device of the present invention.

FIG. 9 is a perspective view showing a main part of a fourth embodiment of the inspection device according to the present invention.

FIG. 10 is a view showing a usage state of a fifth embodiment of the inspection device according to the present invention.

FIG. 11 is a view showing a sixth embodiment of the inspection device according to the present invention.

FIG. 12 is a block diagram showing a specific example of a power supply unit in the inspection device according to the present invention.

13 is a block diagram showing a specific example of the main body of the inspection device according to the present invention together with the power supply shown in FIG.

FIG. 14 is a block diagram showing a concrete example of a power supply voltage supply means for the main body and the power supply in the inspection device according to the present invention.

FIG. 15 is a view showing a seventh embodiment of the inspection device according to the present invention.

FIG. 16 is a perspective view showing an eighth embodiment of the inspection device according to the present invention.

FIG. 17 is a perspective view showing a ninth embodiment of the inspection device according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 video camera 2 platform part 2a stand 3 first operation part 4 display part 5 second operation part 6 main body part 7 length adjusting means 71,72 monopoles 7a-7g, 7a1-7g1, 7a2-7g2 cylinder Column 7A to 7F, 7A 'to 7F' Locking means 8 Supporting means 8a to 8c Leg portion 8d Monopole 9 First signal transmitting means 10 Second signal transmitting means 11 Power source portion 12 Connection portion 12a, 12b Plate shape Part 13 Handle 14, 15 Selection means 16 Signal transmission cable 17 Wire rod fixing means 18 Universal platform 19 Second support means 201-20N Rechargeable battery 21 Voltage control means 22 Voltage detection means 23 Voltage comparison means 24 Voltage switching means 25 Built-in Battery 26 Voltage detection means 26a Third signal transmission means 27 Power supply voltage control means 28 Load 29 Voltage switching means 30 External power supply connection section 31 Pressure converter 32 emitting means 33 the light reflecting means 34 horizontal balance display means 35 carriage 36 carriage locking means 37a, 37b guide part 38 wheels

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Akira Tamura, Akira Tamura, 292 Yoshida-cho, Totsuka-ku, Yokohama-shi, Kanagawa Stock Company Hitachi Image Information Systems (72) Katsuhiko Goto, 292, Yoshida-cho, Totsuka-ku, Yokohama, Kanagawa Ceremony company Hitachi Image Information System

Claims (17)

[Scope of utility model registration request] 1. A video camera, a pan / tilt head mounted with the video camera and tilting / panning, or tilting / panning the video camera, and a first operation section for remotely controlling the pan / tilt head. A recording unit that records and reproduces a video signal output from the video camera on a recording medium, a display unit that displays the video signal from the video camera or the reproduction video signal from the recording unit on a screen, and the video camera. A video camera in an inspection apparatus, comprising: a second operation section for performing optical zoom control and electric zoom control; and a main body section including the recording section, the display section, and the second operation section. And a member for extending the pan head portion in the direction of the inspection point, the length adjusting means for adjusting the length of the entire member, the length adjusting means supported on the ground, and the length adjusting means. Supports detachably connected A step, and a first transmission means having a line length capable of connecting the video camera and the main body portion and transmitting various signals to each other even when the length adjusting means is maximally extended. Even when the length adjusting means is extended to the maximum extent, the pan head section output from the first operation section having a line length capable of connecting the pan head section and the first operation section An inspection device comprising: a second signal transmission means for transmitting a control signal for remote operation to the platform part, and a variable length of the device. 2. A video camera, a pan head portion which mounts the video camera and can be tilted and panned to fix the video camera at an arbitrary position, and a video signal output from the video camera is recorded on a recording medium. And a display unit for displaying the video signal from the video camera or the reproduction video signal from the recording unit on the screen, and an operation unit for performing optical zoom control and electric zoom control of the video camera. In the inspection device provided with a main body part including the recording part, the display part and the operation part, a member for extending the video camera and the platform part toward the inspection point, and the length of the entire member. A length adjusting means for adjusting the length, a supporting means that supports the length adjusting means on the ground and is detachably connected to the length adjusting means, and the length adjusting means is extended to the maximum extent. But the video turtle And a first transmission means for transmitting various signals to each other having a wire length capable of connecting the main body portion to each other, and an overall length of the apparatus is variable. 3. The length adjusting means according to claim 1 or 2, wherein the length adjusting means has a multi-stage structure in which a plurality of tubular members having different outer peripheral dimensions are combined so that their central axes substantially coincide with each other, and each stage is arbitrary. At least three support columns having one or a plurality of monopoles having a structure that expands and contracts with locking means that can be locked at a length, and the supporting means has a structure that can be fixed by varying the length. The tripod structure has a leg portion formed by means of, and at the time of inspection work, the length adjusting means is removably attached to the support means in a direction perpendicular to the installation surface of the tripod structure of the support means. By expanding and contracting the monopole and the column and adjusting the length adjusting means and the supporting means to any length, it is possible to take an image of an object at a high place for inspection. When transporting the equipment , By reducing the monopole and the struts, by reducing the said support means and said length adjusting means to the minimum length, inspection apparatus characterized by improved portability. 4. The insulating member according to claim 3, wherein at least one of the tubular members is an insulating member made of a non-conductive material, or an insulating member having an outer periphery coated with a non-conductive material, An inspection device characterized in that an insulating member is configured to electrically insulate between the platform part side of the length adjusting means and the supporting means side. 5. The video according to any one of claims 1 to 4, wherein the length adjusting means is rotatable about a central axis thereof, and the video is produced by rotating the length adjusting means. An inspection device characterized in that the optical axis of the camera can be oriented in any direction. 6. The wire rod fixing device according to claim 1, wherein the wire rod attached to the first signal transmitting device or the video camera connected to the first signal transmitting device is fixed to an upper portion of the length adjusting device. An inspection device characterized by being provided with. 7. The image signal from the video camera according to claim 1, wherein the image signal from the video camera is shake-corrected and then supplied to the display unit for image display, and the recording is performed as necessary. Inspection device characterized by being recorded in the department. 8. The video according to any one of claims 1 to 6, wherein the length adjusting means is arranged such that a direction having a large flexural strength is orthogonal to an optical axis direction of the video camera. An inspection device characterized in that it is configured so as to absorb a stress orthogonal to the optical axis direction of a camera and suppress the shaking of a monitor image displayed on the display section. 9. The method according to claim 1, wherein the upper portion of the length adjusting means is rotatable in a plane intersecting a central axis of the length adjusting means, and Can be fixed at any position along the central axis of the length adjusting means,
By providing the second supporting means having a predetermined length and installing the second supporting means around the inspection point during the inspection work, the length adjusting means is provided above the second supporting means. The inspection device is configured to be supported by the device, and to absorb the stress orthogonal to the optical axis direction of the video camera to suppress the shake of the monitor image displayed on the display unit. 10. The inspection according to claim 1, wherein the first operating section outputs a pulse voltage as a control signal to intermittently drive the platform section. apparatus. 11. The power supply unit according to claim 1, further comprising a power supply unit that supplies power to either one or both of the platform and the body. A rechargeable battery is provided, and voltage control means for detecting and comparing the voltages of these rechargeable batteries and switching the rechargeable batteries according to the comparison result is provided, and a power supply voltage of a predetermined voltage value is supplied from the power supply unit. An inspection device characterized in that it can be continuously output. 12. The body according to claim 11, wherein the main body unit detects a built-in battery and a voltage value of the built-in battery, and outputs a predetermined signal when the voltage value falls below a predetermined reference value. A voltage detection means for supplying a third signal transmission means to the power supply section, and a power supply voltage supplied by the power supply section due to the supply of the predetermined signal or a power supply voltage from the internal battery. Power source voltage control means for selecting and supplying to the load such as the display unit, and continuously supplying the power source voltage from the power source unit to the load after the built-in battery of the main body unit is exhausted. An inspection device characterized by being configured so that it can. 13. The power supply unit according to claim 11, wherein the power supply unit includes an external power supply connection terminal that can be selectively operated, and when the external power supply voltage is substantially equal to a voltage specification value of the rechargeable battery in the power supply unit. , The external power supply voltage as it is,
When the external power supply voltage is different from the voltage specification value of the rechargeable battery in the power supply unit, the external power supply voltage is converted into a voltage specification value of the rechargeable battery by a voltage conversion unit, and the display unit, etc., respectively. And a power supply voltage from the rechargeable battery in the power supply unit, which is selected as the power supply voltage of the inspection device. . 14. The light emitting device according to claim 1, further comprising a light emitting device near the video camera, and a light reflecting device for adjusting a light amount of illumination light from the light emitting device and an irradiation range thereof. An inspection device characterized in that a lighting means is provided. 15. The inspection device according to claim 1, wherein the support means is provided with a horizontal display means for displaying a horizontal balance degree thereof. 16. The monopole of the length adjusting means according to claim 1, wherein the monopole of the length adjusting means is a 6-step or 7-step structure of the tubular member, An inspection device with a total length of about 8 meters. 17. The vehicle according to claim 1, wherein the supporting means is a dolly provided with wheels, and dolly locking means for substantially fixing the dolly is provided on the dolly. Inspection device.