JP3026920U - Remote inspection device - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide a remote inspection device that can easily and safely perform inspection without fear of electric shock. SOLUTION: A video camera 1 that outputs an electric signal (hereinafter referred to as a video signal) corresponding to a captured image, a retractable operating rod 4 having an electric insulation property, and a video camera 1
And a connecting portion 2 connecting the operation rod 4, a converter 10 for converting a video signal into an optical signal, an optical fiber cable 12 for transmitting the optical signal, and an inverse converter 14 for converting the optical signal into a video signal. , A monitor 16 for displaying a video signal as a color image.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 INDUSTRIAL APPLICABILITY The present invention is a remote inspection device used for inspection of high places or dangerous materials that cannot be easily accessed by people, especially high-voltage equipment, for example, charging parts such as insulators of transmission and distribution lines, transformers and PASs. Regarding

[0002]

[Prior art]

 Conventionally, in the inspection of high places, a worker carries a safety tool and climbs to them, or rides on a workbench of an aerial work vehicle and directly observes. In addition, when inspecting high-voltage equipment, workers should wear safety protection equipment to avoid the risk of electric shock while climbing to these, or riding on the workbench of a special vehicle that has a workbench with high insulation protection. I was inspected by direct visual inspection.

[0003]

[Problems to be solved by the device]

 However, it is dangerous for workers to rise to high places and approach high voltage equipment. In addition, using an aerial work vehicle or a special vehicle requires a large amount of human and physical costs, and it is troublesome to prepare in advance for obtaining permission for the vehicle to pass. INDUSTRIAL APPLICABILITY The present invention provides a remote inspection device that enables workers to easily and safely inspect on the ground without climbing to a high place, and can easily and safely perform inspection without the risk of electric shock without approaching high-voltage equipment. The purpose is to do.

[0004]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, a remote inspection device according to the present invention includes a camera with an autofocus function that outputs an electric signal corresponding to a captured image, a telescopic operation rod having electrical insulation, The camera is connected to the operating rod, and is connected to the connecting portion that can change the photographing posture of the camera as appropriate, and is fixed to the tip side of the operating rod. Receiving the optical signal from the converter via an optical fiber cable and converting it into an electrical signal corresponding to the optical signal, and the inverse converter. The monitor is configured to receive an electric signal from the container and display an image captured by the camera. Preferably, a cable reel that winds the optical fiber cable is fixed to the proximal end side of the operation rod.

[0005]

[Embodiment of device]

 Hereinafter, the present invention will be described in more detail based on examples. 1 and 2 show a remote inspection device according to this embodiment. The remote inspection device according to the present embodiment includes a video camera 1 that outputs an electric signal (hereinafter referred to as a video signal) corresponding to a captured image, a retractable operating rod 4 having electrical insulation, and a video camera. 1 and the operating rod 4 are connected to each other, a converter 10 for converting a video signal sent from the video camera 1 through a shielded wire into an optical signal, and an optical signal connected to the converter 10 An optical fiber cable 12 for transmission, an inverse converter 14 connected to the optical fiber cable 12 for converting an optical signal into a video signal, a monitor 16 for displaying a video signal sent from the inverse converter 14 as a color image, and an operating rod. It is composed of a cable reel 5 fixed to the optical fiber cable 4 and winding the optical fiber cable 12.

The video camera 1 is an 8 mm video camera that is operated by a battery and has an autofocus function. The bottom surface 1a of the video camera 1 is formed with a screw hole to be screwed with the screw of the connecting portion 2, and the back surface 1b of the video camera 1 is for a camera of the shielded wire 9 connected to the converter 10. A jack hole into which the jack 8 is inserted is formed. The connecting portion 2 is composed of a pan head 2a on which the video camera 1 is fixed and rotatable, and a connecting portion 2b connecting the pan head 2a and the operating rod 4. The platform 2a is configured to be rotatable when the knob 20 (FIG. 2) is rotated, and the photographing posture of the video camera 1 is fixed when the knob 20 is rotated in the opposite direction. The operation rod 4 is composed of a plurality of pipes having different diameters, and is connected so as to be expandable and contractible. The tip end is screwed into the connecting portion 2b, and the cap 4a is attached to the base end. The material of the operating rod 4 is glass fiber (FRP), which has excellent insulating properties, and the surface of which is coated with water repellency. The insulating property of the operating rod 4 has passed a withstand voltage test of 75,000 volts for 5 minutes with an electrode distance of 30 cm, and a leakage current is 50 μA or less.

The converter 10 is configured to be able to convert a video signal sent from the video camera 1 via the shielded wire 9 into an optical signal, and has a jack hole into which the jack 13 of the optical fiber cable 12 is fitted. The optical signal is transmitted to the inverse converter 14 through the optical fiber cable 12. The converter 10 is provided with a substantially C-shaped converter mounting portion 11 to which the operating rod 4 is detachably fitted and fixed. The optical fiber cable 12 is an optical transmission line for transmitting an optical signal, and has a jack 13 fitted to the converter 10 and the inverse converter 14 at both ends. Since the optical fiber cable 12 is mainly made of quartz and plastic, it has a reliable insulating property. The inverse converter 14 is formed so as to convert an optical signal sent through the optical fiber cable 12 into a video signal, and has a jack hole into which the jack 13 of the optical fiber cable 12 is fitted. The monitor 16 is connected to the inverse converter 14 via the shielded wire 15 and displays the video signal sent from the inverse converter 14 as a color image. The cable reel 5 includes a bibon portion 6 around which the optical fiber cable 12 is wound, and attachment belts 7 and 7 that fix the bibon portion 6 to the operation rod 4. As shown in FIG. 1, the side surface of the bibon portion 6 is circular and is formed so as to be rotatable around the center point of the circle, and a winding knob 6a is formed on the outer side surface.

Next, a method of using this embodiment will be described. The knob 20 is turned to adjust the swinging angle of the platform 2a, and the shooting posture of the video camera 1 is fixed in the direction of the shooting target. Then, while pulling out the optical fiber cable 12 from the cable reel 5, the operation rod 4 is extended and adjusted to an appropriate length. With the video camera 1 ready for shooting and the monitor 16 ready for projection, as shown in FIG. 3, the operator holds the base end portion of the operating rod 4 in his hand and shoots the video camera 1 at the shooting target. Shoot the subject. The image captured by the video camera 1 becomes a video signal in the video camera 1, is input to the converter 10 through the shielded wire 9, and is converted into an optical signal in the converter 10. The optical signal is input to the inverse converter 14 through the optical fiber cable 12, and the optical signal is converted into a video signal in the inverse converter 14. Then, the video signal is input to the monitor 16, and the monitor 16 receives the video signal and displays an image. As a result, the object to be photographed by the video camera 1 can be clearly seen in real time through the monitor 16 and the inspection can be safely performed. In particular, during the inspection work, even if the remote inspection device according to the present embodiment may come into contact with the high-voltage equipment without coming very close to it, the operation rod 4 and the optical fiber cable 12 have high insulation properties. Members are not electrocuted. When it is desired to enlarge the subject to be photographed, a worker can move the operation rod 4 to bring the video camera 1 closer to the subject to obtain a large image. At that time, since the video is autofocused, it is automatically focused. In addition, if necessary, the video camera 1 can be recorded by checking the video camera 1 in a recording state.

The embodiments of the present invention have been described above, but they can be appropriately modified without departing from the spirit of the present invention. For example, the connecting portion 2 may be composed of only the platform 2a, or the design of the transmission line can be changed as long as it converts an electric signal into an optical signal and transmits the optical signal and then reversely converts the electric signal into an electric signal. . Further, the cable reel 5 may not be attached, and the mounting method can be changed appropriately. Further, the converter 10 and the optical fiber cable 12 may be housed inside the operating rod 4.

[0010]

[Effect of device]

 Since the present invention is configured as described above, it has the following effects. A video camera is attached to the tip of the operating rod, and the captured image is displayed on the monitor, so inspection can be performed without workers rising to high places or workers approaching high-voltage equipment. . The operating rod is configured to be extendable and retractable, and the connecting part to which the video camera is attached is configured to be rotatable, so that the object to be photographed can be photographed from various angles as necessary. Also, since the video camera has an auto-focus function, a clear and focused image can be obtained, which allows careful inspection. Since the electric wire connected to the video camera is a shield wire and the part connecting the converter and the inverse converter is composed of an optical fiber cable, a clear image can be monitored by avoiding the influence of electromagnetic induction due to high voltage. Can be projected on. Since the operating rod and the optical fiber cable have excellent insulation properties, there is no risk of electric shock and workers can work safely and with peace of mind. Further, since the cable reel is fixed to the operation rod, the optical fiber cable does not dangle and it is possible to prevent the work from being hindered.

[Brief description of drawings]

FIG. 1 is a diagram showing an overall configuration of an embodiment of a remote inspection device.

FIG. 2 is a view showing a control rod equipped with a camera of an embodiment of a remote inspection device.

FIG. 3 is a diagram showing a worker taking an image of high-voltage equipment by the remote inspection device according to the embodiment.

[Explanation of symbols]

 1 Video camera 2 Connecting part 4 Control rod 10 Converter 12 Optical fiber cable 14 Inverting converter 16 Monitor

Claims (2)

[Scope of utility model registration request] 1. A camera with an autofocus function for outputting an electric signal corresponding to a photographed image, a telescopic operation rod having an electrically insulating property, the camera connected to the operation rod, and the camera A connection unit that can change the shooting posture of the camera appropriately and a conversion unit that is fixed to the distal end side of the operation rod, receives an electric signal from the camera via a shield wire, converts the electric signal into an optical signal, and outputs the optical signal. And an inverse converter that receives an optical signal from the converter via an optical fiber cable and converts it into an electric signal corresponding to the optical signal, and receives an electric signal from the inverse converter to convert an image captured by the camera. A remote inspection device that consists of a monitor that projects. 2. The remote inspection device according to claim 1, wherein a cable reel for winding the optical fiber cable is fixed to a base end side of an operation rod.