JPH0898357A - Remote monitoring device for steel tower - Google Patents

Abstract

(57) [Summary] [Purpose] To obtain a remote monitoring device for a steel tower that does not rely on human labor and enables quick inspection. [Configuration] The central device 3 remotely controls the monitoring equipment of the first steel tower 1 and the second steel tower 2 by optical communication through the optical fiber 4 included in the overhead ground wire, and monitors these steel towers. To do. For example, in the first tower 1, a moving vehicle 12 moves up and down the tower along a rail 11 by a remote control from a central unit 3, and a video camera mounted on the moving vehicle 12 moves various parts of the tower. Take an image. The video imaged by the video camera is transmitted to the central device 3 through the optical fiber 4 and displayed on the display screen of the monitoring monitor unit 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote monitoring device for a steel tower for monitoring a steel tower over which an overhead power transmission line is installed.

[0002]

2. Description of the Related Art Generally, a steel tower over which an overhead power transmission line is laid is inspected regularly or at the time of failure. There is no damage to the insulator. This inspection was carried out manually, and it was necessary to climb a steel tower, which was always dangerous. In addition, when a failure such as a lightning strike occurs, quick inspection is required, but when the tower is located far away, quick inspection is almost impossible.
In addition, it was extremely dangerous during inspections in bad weather.

[0003]

As described above, in the past, since the inspection of the tower was manually performed, it is not always possible to perform a quick inspection when a failure such as a lightning strike occurs.
In addition, there is a problem that workers are always exposed to danger.

[0004] Therefore, the present invention is to obtain a remote monitoring device for a steel tower that does not rely on human labor and enables quick inspection.

[0005]

In order to solve the above-mentioned problems, according to the present invention, a rail laid on a steel tower,
It has a moving vehicle equipped with an image pickup means for picking up and down a steel tower along this rail and picking up an image of the surroundings, and a display means for displaying an image picked up by the image pickup means, and remotely controls the image pickup means and the moving vehicle. And remote control means.

[0006]

According to the present invention, the moving vehicle can move up and down the steel tower while imaging the surroundings by the imaging means, and the remote control means remotely controls the imaging means and the moving vehicle while the imaging means is used. The image picked up by can be displayed on the display means. Therefore, if the moving vehicle is remotely controlled and moved up and down while watching the image displayed on the display means, the steel tower can be inspected even at a place away from the steel tower.

[0007]

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

FIG. 1 schematically shows an embodiment of a remote monitoring apparatus for a steel tower according to the present invention. The apparatus of this embodiment is for monitoring a large number of steel towers including the first steel tower 1 and the second steel tower 2 by the central device 3, and all the steel towers are the first and second steel towers 1. As in the case of 2, each has equipment for monitoring as described below. Further, an optical fiber overhead ground wire (OPGW) is laid over all the steel towers, and the central device 3 uses the optical fiber 4 included in the overhead ground wire to perform all optical communication. Monitor the tower.

The central unit 3 comprises a monitoring monitor section 5, an instruction control section 6 and an optical signal input / output section 7. The instruction control section 6 displays a control monitor 8 for displaying various control data and an instruction. The operation panel 9 for taking out is provided. The optical signal input / output unit 7 is provided between the monitor unit 5 for monitoring and the optical fiber 4,
And the command controller 6 and the optical fiber 4 are connected to each other,
The optical signal transmitted via the optical fiber 4 is sent to the monitoring monitor unit 5 and the command control unit 6, and the optical signal output from the command control unit 6 is sent to the optical fiber 4.

A rail 11 is installed on the first steel tower 1 so as to return from the ground to the ground through the vicinity of the top of the steel tower, and a moving vehicle 12 moves along the rail 11. . The rail 11 is guided to the vehicle storage box 13 on the ground side. Therefore, the moving vehicle 12
Starts from the vehicle storage box 13, passes near the top of the steel tower, and returns to the vehicle storage box 13 again.

The mobile vehicle 12 uses an electric motor as a power source as described later, and obtains electric power from a trolley wire (not shown here) laid along the rail 11. The electric power of this trolley wire is transmitted by a power transmission line of a system different from the power transmission line spanning each steel tower, and in the vicinity of the first steel tower 1, the power transmission line of this different system is distributed. The electric pole 14 for the is arranged. Electric power is transmitted from the power receiving device 15 attached to the utility pole 14 to a trolley wire for supplying power to the moving vehicle 12.

A solar cell 16 is arranged in the first steel tower 1, and the electric power generated by the solar cell 16 is stored in a storage battery 17. The photoelectric conversion device 18 operates by using the storage battery 17 as a power source, and when the optical signal transmitted to the optical fiber 4 is input through the optical signal input / output unit 19, the optical signal is converted into an electric signal, and the electric signal is converted. Are transmitted to the moving vehicle 12 via a signal transmission path (not shown) (not shown). Further, when the photoelectric conversion device 18 receives an electric signal from the moving vehicle 12 via the signal transmission path, the photoelectric conversion device 18 converts the electric signal into an optical signal, and the optical signal is transmitted via the optical signal input / output unit 19 to an optical fiber. Send to 4.

The second steel tower 2 has the same structure as the first steel tower 1, and has a rail 21, a moving vehicle 22, a vehicle storage box 23, an electric pole 24, a power receiving device 25, a solar cell 26, a storage battery 27, A photoelectric conversion device 28 and an optical signal input / output unit 29 are provided. Further, as described above, each of the other steel towers other than the first and second steel towers 1 and 2 is also equipped with the monitoring equipment of the same configuration.

FIG. 2 shows in detail the wiring structure of the monitoring equipment in the first steel tower 1. As shown in this figure,
The optical fiber 4 comprises a transmission optical fiber 4-1 and a reception optical fiber 4-2, and these transmission optical fibers 4-
1 and the receiving optical fiber 4-2 are connected to the optical signal input / output unit 19. The optical signal input / output unit 19 is the photoelectric conversion device 1
When the optical signal from the optical fiber 8 is input, the optical signal is sent to the transmitting optical fiber 4-1. When the optical signal from the receiving optical fiber 4-2 is input, the optical signal is transmitted to the photoelectric conversion device 1
Send to 8. The photoelectric conversion device 18 operates by using the storage battery 17 charged by the solar cell 16 as a power source, converts an optical signal from the optical signal input / output unit 19 into an electric signal, and attaches this electric signal to the electric pole 14. Power receiving device 15
Or transmit this electric signal to the moving vehicle 12 via the antenna wire 31 laid along the rail 11. Further, when the photoelectric conversion device 18 receives the electric signal transmitted from the moving vehicle 12 via the antenna line 31, the photoelectric conversion device 18 converts the electric signal into an optical signal and sends the optical signal to the optical signal input / output unit 19. To do. Furthermore, the photoelectric conversion device 1
8 incorporates a switch (not shown) inserted between the photoelectric conversion device and the antenna line 31, and when this switch is turned off, the photoelectric conversion device 18 and the antenna line 3 are provided.
1 is separated.

On the other hand, the power receiving device 15 is connected to the moving vehicle 12 via a trolley wire 32 laid along the rail 11.
Power supply to. Further, the power receiving device 15 has a built-in switch (not shown) inserted between the power receiving device and the trolley wire 32, and when the switch is turned off, the power receiving device 15 and the trolley wire 32 are disconnected. .

FIG. 3 shows the construction of the rail 11 and the moving vehicle 12 in detail. As shown in this figure, guide edges 33 and 34 are formed on both sides of the rail 11, and a guide plate 35 is provided at the center of the inside of the rail 11 so as to project along the rail. Is provided with a pipe 36. A groove 37 is formed in the pipe 36 in the longitudinal direction, and the antenna wire 31 passes inside the groove 37. Inside the rail 11, a large number of insulators 38 are arranged in parallel along the rails, and the trolley wire 32 is laid over the insulators.

On the other hand, a drive system support plate 42 is vertically supported inside the frame 41 of the moving vehicle 12, and an electric motor 43 and a pair of bearings 44 and 45 are fixed to the drive system support plate 42. Has been done. These bearings 44, 4
5 supports an axle 46, and a pair of drive wheels 47 and 48 are connected to both sides of the axle 46. The electric motor 43 rotates the axle 46 through the drive gear 49, which causes the drive wheels 47 and 48 to rotate. Further, holes 51 and 52 are formed on both edges of the frame 41, and the pair of L-shaped axles 5 is formed in these holes 51 and 52.
3,54 penetrate. These L-shaped axles 53, 54
The coil springs 55 and 56 are respectively inserted on the upper side of, and the coil springs 55 and 56 pull the L-shaped axles 53 and 54 upward. Furthermore, at the lower ends of these L-shaped axles 53, 54, small wheels 57,
58 is pivotally supported. Here, the left guide edge 33 of the rail 11 is sandwiched between the left drive wheel 47 and the small wheel 57, and the right guide edge 34 of the rail 11 is sandwiched between the right drive wheel 48 and the small wheel 58. Has been.
As a result, even if the rail 11 is steep, the moving vehicle 12 is supported so as not to separate from the rail 11, and the drive wheels 47, 48 are pressed against the rail 11 so as not to slip. In this way, the guide edges 3 on both sides of the rail 11
3, 34 are driven wheels 47, 48 and small wheels 57, 58.
When the drive wheels 47 and 48 are rotated by the electric motor 43 in a state of being sandwiched between them, the moving vehicle 12 moves to the rail 1
Ascend or descend the tower along 1.

An insulator 61 is fixed to the right side of the drive system support plate 42, and a pantograph 62 is attached to the insulator 61 facing downward. The pantograph 62 is always in contact with the trolley wire 32 and draws power from the trolley wire 32.

Further, below the drive system support plate 42, there are formed passage holes 63 through which the guide plate 35 of the rail 11 and the pipe 36 pass, and three passage holes 63 surrounding the pipe 36 are formed. Has three guide rollers 64 axially supported. These guide rollers 64 always guide the pipe 36 to substantially the center of each guide roller. A transmitting / receiving antenna 65 is introduced inside the pipe 36 through a groove 37. This transmitting / receiving antenna 65 is a pipe 3
6 always faces the antenna line 31 inside the
Sends and receives radio waves to and from 1.

As the material of the pipe 36, a material having a property of blocking a magnetic field is applied so that the surrounding magnetic field does not enter the inside of the pipe 36.
This is because a strong magnetic field exists in the vicinity of the high-voltage power transmission line, and this magnetic field is blocked by the pipe 36, so that transmission and reception of radio waves between the transmission / reception antenna 65 and the antenna line 31 are performed favorably. is there.

A shelf 66 is laterally supported inside the frame 41 of the moving vehicle 12, and a movable platform 67 is fixed to the upper side of the shelf 66. The movable platform 67 supports a video camera 68 rotatably in a horizontal direction and a vertical direction, and changes the direction of the video camera 68.

Further, a control unit 71 is arranged inside the frame 41 of the moving vehicle 12. This control unit 71 operates from the trolley wire 32 to the pantograph 62.
Power is supplied via the power source to drive and control the electric motor 43, the movable platform 67 and the video camera 68, and the video camera 68.
The image signal from is input, and the radio wave is transmitted / received between the antenna line 31 via the transmission / reception antenna 65.

FIG. 4 shows the structure of the control unit 71 in detail. As shown in this figure, the power supply unit 72 of the control unit 71 takes in power from the trolley wire 32 through the pantograph 62, converts this power into an appropriate voltage, and controls the control unit 73, the transmission unit 74, and the reception unit 75. And the antenna switch 76. The controller 73 drives and controls the electric motor 43, the movable platform 67, and the video camera 68, inputs an image signal from the video camera 68, and outputs the image signal to the transmitter 74. When the image signal is input, the transmitter 74 modulates the image signal and applies the modulated output to the transmission / reception antenna 65 via the antenna switch 76. A reception input from the transmission / reception antenna 65 is applied to the reception unit 75 via the antenna switching unit 76. The receiving unit 75 demodulates the received input and adds the demodulated output to the control unit 73.

The detailed construction of the monitoring equipment attached to the first steel tower 1 has been described with reference to FIGS. 2 to 4, but each of the other steel towers has the same construction as the first steel tower 1. .

Now, in such a structure, for example, the moving vehicle 12 attached to the first steel tower 1 is connected to the central unit 3
The control procedure for remote control by the following is described below.

First, in the first tower 1, it is assumed that a switch (not shown) built in the photoelectric conversion device 18 is turned off, and the photoelectric conversion device 18 and the antenna 31 are disconnected from each other. Further, a switch (not shown) built in the power receiving device 15 attached to the power pole 14 is also turned off, and the power receiving device 15 and the trolley wire 32 are disconnected. In this way, the photoelectric conversion device 18 and the antenna 31 are separated from each other, and the power receiving device 15 and the trolley wire 32 are separated from each other. This is because the photoelectric conversion device 18, the power receiving device 15, and the moving device are moved due to an accident such as a lightning strike. This is to prevent the vehicle 12 from being damaged.

In this state, by operating the operation panel 9 of the command control unit 6 in the central unit 3, a control signal for turning on the switch built in the photoelectric conversion device 18,
A control signal for turning on a switch built in the power receiving device 15 is sent from the central device 3 to the first steel tower 1.
These control signals are converted into optical signals and the optical fiber 4
Is transmitted to the first tower 1 through the photoelectric conversion device 18
Will be received at. The photoelectric conversion device 18 converts the optical signal into original control signals, turns on a switch built in the photoelectric conversion device in response to one of the control signals, and outputs the other control signal. The control signal is sent to the power receiving device 15. In response to this, the power receiving device 15 turns on a switch built in the power receiving device. As a result, the photoelectric conversion device 18 and the antenna wire 31 are connected to each other, and the central device 3
Communication between the mobile vehicle 12 and the mobile vehicle 12 is enabled, and the power receiving device 15 and the trolley wire 32 are connected to each other,
Can supply power to the moving vehicle 12.

Thereafter, the command control unit 6 in the central unit 3
From the central unit 3, a control signal for instructing the movement of the moving vehicle 12, a control signal for instructing the imaging by the video camera 68, and a control signal for instructing the change of the orientation of the video camera 68 are operated by operating the operation panel 9 of the. Optical fiber 4
It is sent out to the first steel tower 1 one by one via.

In the first tower 1, these control signals are transmitted to the antenna line 31 via the photoelectric conversion device 18 and received by the moving vehicle 12. In the moving vehicle 12, these control signals are received by the transmission / reception antenna 65 and input to the control unit 73 via the antenna switching unit 76 and the receiving unit 75. The control unit 73, based on these control signals,
The moving vehicle 12 is moved, the image pickup by the video camera 68 is started, and the orientation of the video camera 68 is changed. That is, the electric motor 43 is drive-controlled to move the moving vehicle 12 along the rail 11, the video camera 68 is drive-controlled to image each part of the first steel tower 1, and the movable platform 67 is driven. The video camera 68 is controlled to change its orientation.

When the inspection of the steel tower by the moving vehicle 12 is started in this way, the video camera 68 outputs an image signal showing the imaged image to the control unit 73. The control unit 73 applies this image signal to the transmission / reception antenna 65 via the transmission unit 74 and the antenna switching unit 76. As a result, this image signal is transmitted to the photoelectric conversion device 18 via the antenna line 31, and is converted into an optical signal here. This optical signal is
It is transmitted to the central unit 3 via the optical fiber 4. In the central device 3, this optical signal is input to the monitor unit 5 for monitoring,
The monitoring monitor unit 5 converts this optical signal into an original image signal, and displays on the display screen the image shown by this image signal, that is, each part of the first tower 1 imaged by the video camera 68 of the moving vehicle 12. indicate.

Therefore, in the central unit 3, if the moving vehicle 12 in the first steel tower 1 is remotely controlled to move the moving vehicle 12 up and down, and the video camera 68 is used to image each part of the first steel tower 1. , Monitoring unit 5 for monitoring
It is possible to inspect the first steel tower 1 while watching the image displayed on the display screen.

The other steel towers other than the first steel tower 1 are also
Checked by remote control from central unit 3.

[0033]

As described above, according to the remote monitoring apparatus for a steel tower according to the present invention, the moving vehicle of the steel tower is moved up and down and the surrounding situation is imaged by the remote control, and the imaged image is remotely displayed. Since it can be seen at, there is no need for workers to climb the tower, and quick inspection is possible.

[Brief description of drawings]

FIG. 1 is a view schematically showing an embodiment of a remote monitoring device for a steel tower according to the present invention.

FIG. 2 is a diagram showing equipment for monitoring a steel tower in the embodiment shown in FIG.

FIG. 3 is a diagram showing a configuration of a rail and a moving vehicle in the embodiment shown in FIG.

FIG. 4 is a diagram showing a configuration of a control unit in the mobile vehicle shown in FIG.

[Explanation of symbols]

 1 1st tower 2 2nd tower 3 Central device 4 Optical fiber 5 Monitoring monitor section 6 Command control section 7 Optical signal input / output section 8 Control monitor 11,21 Rail 12,22 Moving vehicle 13,23 Vehicle storage box 14,24 Utility pole 15,25 Power receiving device 16,26 Solar cell 17,27 Storage battery 18,28 Photoelectric conversion device 19,29 Optical signal input / output unit

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Yoshihide Nakao 2-17 Shiba 2-chome, Minato-ku, Tokyo Sumitomo Electric Co., Ltd.

Claims (4)

[Claims] 1. A rail laid on a steel tower, an image pickup means for picking up an image of the surroundings, and a moving vehicle that moves up and down the steel tower along the rail, and an image picked up by the image pickup means is displayed. A remote monitoring device for a steel tower, which has a display means and comprises a remote control means for remotely controlling the imaging means and the moving vehicle. 2. A power supply line arranged along the rail for supplying power to the moving vehicle; a power supply for supplying electric power to the mobile vehicle via the power supply line; and the power supply line and the power supply. The remote monitoring device for a steel tower according to claim 1, further comprising switch means inserted between the remote control means and the remote control means for controlling the switch means. 3. A terminal arranged near the steel tower for relaying communication between the moving vehicle and the remote control means, and an antenna wire derived from the terminal and arranged along the rail, The remote monitoring device for a steel tower according to claim 1, further comprising switch means inserted between the terminal and the antenna wire, wherein the remote control means controls the switch means. 4. The remote monitoring device for a steel tower according to claim 3, wherein the terminal includes an independent power source for supplying power to the terminal.