JP3007227U - Dangerous goods inspection device - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a dangerous goods inspection device capable of safely and efficiently inspecting dangerous goods and dangerous places. [Structure] An image pickup means 1 equipped with a video camera 4 attached to the tip of an insulating rod 3 and a transmitter 23 for wirelessly transmitting a video signal from the video camera 4, and a receiver for receiving a radio signal from the image pickup means 1. The receiving unit 2 includes a unit 36 and a display unit 31 that reproduces and displays the video signal received from the receiving unit 36.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a dangerous material inspection device for inspecting high places and dangerous materials that are not easily accessible by people, and more specifically, it captures images of high-voltage charging parts and high-voltage overhead lines from a distance. The present invention relates to a dangerous substance inspection device capable of inspecting a part.

[0002]

[Prior art]

 When inspecting high places or high-voltage charged parts, these places are extremely dangerous.Therefore, fall prevention safety devices are used during high-place inspection work, and high-voltage charging parts are inspected. In that case, measures to prevent electric shock are taken. For example, when inspecting high places such as steel towers and bridges, workers usually carry safety equipment and climb to these to secure a work platform and then directly visually check the inspection location. In addition, when the vehicle can be approached, a work vehicle for aerial work is used, and the work is carried out on the workbench of this work vehicle so that the work can be visually confirmed by approaching the inspection location. In addition, high voltage overhead lines, insulators for power transmission and distribution lines, oil leaks in power transmission and distribution equipment, outside power distribution equipment in salt damage areas, outside PAS, outside transformers, outside switches, and inside the power station premises. When inspecting such dangerous areas, it is common for workers to wear safety protection equipment and carry out the inspection work while avoiding the risk of falling or electric shock. In addition, when the vehicle can be used, a special vehicle having a workbench with high insulation protection is used, and it is also possible to visually check the inspection point on the workbench of this special vehicle. .

[0003]

[Problems to be solved by the device]

 By the way, when inspecting dangerous places such as the above-mentioned high places and high-voltage charging parts, it is necessary to carry safety equipment and carry on work while wearing safety protection equipment. In addition, when using an aerial work vehicle or a special vehicle, it is necessary to make advance preparations and plans such as obtaining permission for the vehicle to pass through and allocating personnel in advance. It was. In particular, when it is necessary to inspect details or places that are difficult to see during the inspection work of the high-voltage charging section, the risk of contacting the high-voltage charging section increases as the distance gets closer, so a certain distance must be maintained. However, there was a problem that it was difficult to carry out detailed inspections. The present invention has been made in view of the above problems, and an object of the present invention is to provide a dangerous substance inspection device capable of safely and efficiently inspecting a dangerous substance or a dangerous place.

[0004]

[Means for Solving the Problems]

 In order to achieve the above object, the dangerous substance inspection apparatus according to the present invention is an image pickup means provided with a video camera attached to the tip of an insulating rod and a transmission unit for wirelessly transmitting a video signal from the video camera. And a receiving unit that includes a receiving unit that receives a wireless signal from the image capturing unit and a display unit that reproduces and displays a video signal received from the receiving unit. Although the display unit is not particularly limited, for example, a liquid crystal television receiver is applicable. Further, the receiving means preferably includes a video recording unit for recording a video signal.

[0005]

[Action]

 According to this invention, an operator grips the insulating rod of the image pickup means and brings the video camera at the tip close to a dangerous object such as a high place or a high-voltage charging section to start the image pickup of the inspection target portion. When a video signal is output from the video camera by this imaging, this video signal is wirelessly transmitted from the transmission unit. When this radio signal is received by the receiving unit of the receiving means, the received video signal is reproduced and displayed on the display unit, so that the current inspection target portion imaged by the video camera can be visually recognized in real time. If the display unit is, for example, a liquid crystal television receiver, the receiving means is small and compact. Further, if the receiving means is provided with a video recording unit, a video signal can be recorded. Furthermore, if the object to be imaged by the video camera of the imaging means is a high-voltage device or overhead wire, it is possible to inspect without having workers approach these dangerous points.

[0006]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an overall configuration diagram of a dangerous material inspection device according to the present embodiment, and FIG. 2 is a front view showing an imager of the dangerous material inspection device. The dangerous goods inspection device consists of an image pickup device 1 and a receiver device 2, and is constructed so that dangerous places such as high places and high-voltage charging parts can be inspected by video shooting. The image pickup device 1 wirelessly transmits a video signal to the image receiver 2 side, and is configured by attaching a video camera 4 to the tip of the insulating rod 3. The insulating rod 3 is composed of a plurality of pipes having different diameters, and has a flexible connecting structure. The insulating rod 3 is made of glass fiber (FRP) or synthetic resin material, which has high insulation against high voltage and is also excellent in strength. The insulating rod 3 has a surface coated with a paint that enhances water repellency for safety in rainy weather. A battery case 5 is provided on the tip side of the insulating rod 3, and a base 6 is attached to the tip. A rechargeable battery 5a is housed in the battery case 5, and the output of the battery 5a is connected to the camera body 7 via a lead wire 5b. Further, the base 6 is provided with a connection port and a set screw 6a, and the lower end portion 7a of the camera body 7 is inserted into the connection port, and the set screw 6a is tightened to fix the video camera 4.

[0007] Thus, the worker holds the lower part of the insulating rod 3 with the video camera 4 integrated during the inspection work and brings the video camera 4 close to the imaging target portion. Even if the upper side including 4 contacts the charged part of high voltage, the high insulation prevents the electric shock of the worker. The video camera 4 employs a lens with an automatic diaphragm mechanism, and is configured to include a camera body 7 and a box 9. The transmission circuit unit is housed in the box 9, and is connected to the camera body 7 via the lead wire 9 a and also to the antenna 10. The antenna 10 is rotatably attached to the side surface of the box 9 so that it can be turned sideways or downward depending on the imaging location. The receiver 2 is a portable video function-equipped television having a function of reproducing and recording a video signal. In this example, a liquid crystal television integrated 8 mm video is adopted. The receiver 2 is provided with a liquid crystal screen 31 and a switch operating section 33 on the front side of the television body 30, and has a built-in rechargeable battery. Further, a cassette section 32 (not shown) is provided on the back side so that an 8 mm video tape can be inserted into and removed from the cassette section 32.

An antenna 35 connected to a built-in receiver 36 is attached to the television body 30. The switch operating unit 33 includes a power on / off switch, an adjustment switch for the liquid crystal screen 31, an operation switch for recording / reproducing a video signal in the cassette unit 32, and the like. Further, it is provided with a tuning switch for selecting a general television broadcast radio wave or a radio wave from the image pickup device 1. For example, when 15Ch is selected, the video signal from the image pickup device 1 can be received. When the power switch is turned on and the tuning switch is operated, the switch operation unit 33 displays the imaged object on the liquid crystal screen 31. When recording is to be performed, the recording switch is operated to magnetically record a video signal on the video tape of the cassette section 32. When the reproduction switch is operated after recording, the video signal is reproduced and displayed on the liquid crystal screen 31.

FIG. 3 is a block diagram of the image pickup device 1. The video camera 4 includes a lens unit 4a and an imaging unit 4b, and a transmission circuit unit for transmitting a video signal from the video camera 4. The image pickup unit 4b is provided with a photoelectric conversion element 19 (for example, CCD) that photoelectrically converts a subject image, and an electric signal from the photoelectric conversion element 19 is amplified by an amplifier 20 and sent to a signal processing unit 21. To be done. The signal processing unit 21 processes the electric signal and transmits it to the modulating unit 22 as an image signal. Then, the modulator 22 modulates the video signal and sends it to the transmitter 23. Further, the transmitter 23 wirelessly transmits the modulated wave from the antenna 10 to the receiver 2. In the image pickup device 1, a weak electric wave is output from the antenna 10 and the area where the electric wave reaches is limited within a range of several meters so as not to adversely affect other electronic devices and the like. .

FIG. 4 is a block diagram showing a schematic configuration of the receiver 2. The receiver 2 is configured by providing a television with a video function with an image processing system. In the video processing system, when the radio wave received by the antenna 35 is guided to the reception unit 36, it is transmitted to the demodulation unit 37. The demodulation unit 37 demodulates the output signal from the reception unit 36 and sends it to the signal processing unit 38. The output of the signal processing unit 38 is connected to the liquid crystal screen 31 and the video recording / playback unit 39. Further, the output from the video recording / playback unit 39 is introduced to the liquid crystal screen 31. The video recording / playback unit 39 is connected to the cassette unit 32.

Next, an inspection operation of a dangerous place by the dangerous material inspection device will be described. In this inspection work, for example, when inspecting the charging part of the high-voltage transformer 50 installed in the substation premises as shown in FIG. 5, two workers M1 and M2 share the work. First, one worker M1 grips the insulating rod 3 on which the image pickup device 1 is set, and brings the video camera 4 at the tip thereof close to the upper surface 50a of the high-voltage transformer 50 and the lower portion 51a of the insulator 51. Then, the other worker M2 holds the image receiver 2, performs a switch operation to start image pickup by the image pickup device 1, and causes the image receiver 2 to display an image. At this time, if the channel is in UHF, 15Ch is selected and the image on the image pickup device 1 side is displayed on the liquid crystal screen 31. As a result, it is possible to clearly and visually recognize the current inspection target portion imaged by the video camera 4 in real time. Therefore, the worker can know the current state without approaching the charged part of the high-voltage transformer 50, and the inspection can be performed in a safe place. Further, even if the tip end video camera 4 touches a high-voltage charged portion during this work, the insulating rod 3 has a high insulating property, so that the danger of electric shock can be avoided.

When an abnormality is found by this inspection or when it is desired to leave it as a record, the video is recorded on the video tape of the cassette unit 32 by operating the record switch. In addition, after performing such imaging and recording, when it is desired to examine the inspection location, the reproduction switch is operated to display the reproduction image on the liquid crystal screen 31. Further, the video tape in the cassette section 32 can be taken out and reproduced by another video device or stored. Since this dangerous goods inspection system is small and lightweight, it is possible to inspect locations that were previously difficult, such as insulators for transmission and distribution lines, oil leaks in transmission and distribution facilities, and salt damage areas. Such as outside of power distribution equipment, outside of PAS, outside of transformers, outside of switches, live parts inside power station substations, high places such as towers and bridges, and other places where people cannot easily approach. Ranges are available.

An embodiment of the dangerous material inspection device has been described above, but the invention is not limited to this, and the design can be changed appropriately. For example, the video camera 4 may be provided with a zoom mechanism, and the receiver 2 side may be provided with a remote control operation unit for controlling the zoom mechanism. In this way, when a worker wants to inspect the details of the inspection object in detail, by operating the zoom button while observing the image, it is possible to zoom up and see a wide image, which is preferable. .

[0014]

[Effect of device]

 As described above, in the dangerous goods inspection device of the present invention, when the insulating rod of the imaging means is grasped and the video camera is imaged at a high place or near a dangerous material, it is reproduced and displayed on the display part of the receiving means. Since the current inspection target part can be visually confirmed in real time, the inspection can be performed in a safe place. In particular, since a video camera is installed at the tip of the insulating rod and the video signal is wirelessly transmitted to an independent receiving means for reproduction, it is possible to get an electric shock when inspecting a high voltage charging device or a high voltage overhead line. The effect of avoiding the danger of. If the display unit of the receiving means is a liquid crystal television receiver, it becomes compact and compact, and is easy to use. Further, if the receiving means is provided with a video recording unit, the video signal can be recorded so that it can be reproduced and displayed later on the display unit so as to examine and store the abnormal portion. Further, when the high-voltage equipment or overhead wire is used as the image capturing means by the video camera of the image capturing means, it is possible to perform inspection without needing to approach these dangerous places, so that the inspection work can be performed safely and efficiently. .

[Brief description of drawings]

FIG. 1 is an overall configuration diagram showing an embodiment of a dangerous goods inspection device according to the present invention.

FIG. 2 is a front view showing an imaging means of the dangerous material inspection device.

FIG. 3 is a block diagram showing an electrical configuration of an image pickup unit.

FIG. 4 is a block diagram showing an electrical configuration of a receiving means.

FIG. 5 is an explanatory diagram of an inspection work by the dangerous material inspection device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Imaging means 2 Reception means 4 Video camera 23 Transmission part 31 Display part 36 Reception part

Claims (4)

[Scope of utility model registration request] 1. A video camera attached to the tip of an insulating rod, and an image pickup unit including a transmitter for wirelessly transmitting a video signal from the video camera, and a receiver for receiving a radio signal from the imager. And a receiving means having a display section for reproducing and displaying a video signal received from the receiving section, and a dangerous goods inspection apparatus comprising: 2. The dangerous material inspection device according to claim 1, wherein the display unit is a liquid crystal television receiver. 3. The dangerous substance inspection device according to claim 2, wherein the receiving means includes a video recording unit for recording a video signal. 4. The dangerous material inspection apparatus according to claim 3, wherein the image pickup means sets a high-voltage device or an overhead wire as an image pickup target of the video camera.