JPH07110087B2 - Overhead cable monitoring device - Google Patents

Description

TECHNICAL FIELD The present invention relates to an overhead cable monitoring device useful for inspecting an optical composite overhead ground wire.

[Prior Art] Conventionally, as a method for inspecting an overhead power transmission line, an overhead ground wire, or the like, a method in which a helicopter is flown and an overhead cable is visually observed by an observer from the air using binoculars, As disclosed in Japanese Patent Laid-Open No. 62-2806, a method is known in which a model airplane equipped with a television camera is flown and the video data captured by the television camera is received by a receiver on the ground for monitoring.

[Problems to be Solved by the Invention] However, in the above-described conventional method of flying a helicopter or a model airplane, not only the monitoring operation itself is complicated, but also the subtle deformation of the cable surface or the occurrence of strands due to lightning, etc. It is difficult to determine the detailed state such as a burn mark or broken wire.
In addition, the observation direction was limited, and there was a risk of overlooking the obstacle point. Therefore, it was unsuitable to be applied to an overhead cable such as an optical composite overhead ground wire that requires more strict monitoring.

[Means for Solving Problems] An aerial cable monitoring device according to the present invention is provided to solve the above problems, and includes a device body that is capable of self-propelled along the aerial cable, A sensor mounted on the device body for observing the state of the aerial cable, a sensor rotating mechanism for rotating the sensor along the outer periphery of the aerial cable, and a transmitting device for transmitting an output signal of the sensor to a receiving device. It is equipped with.

[Operation] In the present invention, the device main body is caused to travel along the overhead cable, and the sensor is also rotated along the outer circumference of the cable by the rotation mechanism. Thereby, the data of the entire circumference of the cable observed by the sensor is received by the receiving device.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a device main body, and wheels 2, 3 rolling on the aerial cable C and a wheel 4 pressed against the aerial cable C from below are provided on an upper part of the device main body 1. It is provided. These wheels 2, 3, 4
All or part is connected to the traveling drive motor 5,
The device body 1 freely moves forward along the aerial cable C by rotating the wheels connected to the drive motor 5,
You can go backwards.

A sensor device 6 is mounted on the front of the device body 1. In the sensor device 6, a television camera for photographing the outer peripheral surface of the aerial cable C and a measuring device for measuring the outer diameter of the cable C (none of which are shown in FIG. 1) are incorporated. These are rotated by the sensor rotation mechanism 7 along the outer circumference of the overhead cable C. Reference numeral 8 is a sensor rotation motor as its drive source.

In addition, a battery (not shown) and a control box 9 for operating a sensor system and a drive system are mounted on the apparatus body 1. Control box 9
Is a drive controller 10 shown in FIG. 2, a computer 11,
The transmitter / receiver 12 and the like are housed.

The drive control device 10 is for controlling the traveling drive motor 5 and the sensor rotation motor 8, and is connected to receive a command from the computer 11. Also, the TV camera 13
A camera controller 14 for controlling the camera and a measuring instrument controller 16 for controlling the outer diameter measuring instrument 15 are also connected so as to receive a command from the computer 11. Also, the outer diameter measuring device 15
Are connected to the computer 11 so that measurement data can be sent. Then, the transmitter / receiver 12 can receive the video signal from the television camera 13 and the outer diameter measurement data signal sent via the computer 11, and can send these signals to the transmitter / receiver 17 in the hands of the monitor. It is like this.

On the other hand, the transmitter / receiver 17 placed at the monitor's hand is connected with a display 18 for displaying the transmitted signal as an image and a display device 19 for displaying an appropriate signal. The state (state) of C can be confirmed. In addition, the transmitter / receiver 17 gives a signal to the computer 11 on the apparatus body 1 side or directly drives the drive controller.
An operation panel 20 for giving a signal to 10 is connected. Then, the transmitting / receiving device 17, the display 18, the display device
19 and operation panel 20 are integrated into a unit on the hand side shown in FIG.
Make up 21.

Next, a case where the overhead cable C is inspected by the monitoring device having the above configuration will be described.

First, the device body 1 is suspended from the overhead cable C so that the device body 1 can freely travel along the cable C. Then, the supervisor holds the handheld device 21 and turns on the switch to operate the device body 1. Then, according to the program stored in the computer 11 in advance, the apparatus body 1
Traveling along the overhead cable C, and at the same time the sensor device 6
Rotates to measure the outer diameter of the overhead cable C and photograph the appearance of the outer surface of the cable C.

Then, these signals are transmitted from the transmission / reception device 12 in the control box 9 and received by the monitor side device 21 and displayed as an image or an appropriate display. Therefore, the observer can monitor the state of the cable C by observing the hand-side device 21, even if the observer is away from the overhead cable C.

In this case, the program of the computer 11 can be set arbitrarily. For example, the outer diameter measuring device 15 is operated in synchronization with the running operation, and the television camera 13 is stopped. Then, when the outer diameter measuring device 15 detects the dimensional abnormality of the cable C, the device main body 1 is instructed by the computer 11.
Is moved backward to operate the television camera 13 to transmit a video signal. The program can be constructed in this way.

In any case, according to the monitoring device of the present invention as shown in the above embodiment, the device body 1 is caused to travel along the overhead cable C, and the sensor 6 is also rotated by the rotary motor 8 along the outer periphery of the cable C. As a result, the data of the entire circumference of the cable observed by the sensor 6 can be confirmed by the hand side device 21.

Although the television camera and the outer diameter measuring device are illustrated as the sensor in the above-mentioned embodiment, other sensors may be used as long as they are for checking the condition of the cable.

[Effects of the Invention] As is apparent from the above description, according to the present invention, the monitoring device itself travels using an aerial cable to be monitored as a guide, and the data of the sensor mounted on the monitoring device is received by the receiving device. Since it can be sent to and monitored at a remote place, the monitoring work becomes much easier than the above-mentioned conventional technique of flying a helicopter or a model airplane. In particular, since the sensor mounted on the monitoring device rotates along the outer circumference of the aerial cable, it is possible to observe the entire circumference of the aerial cable in detail, without missing any small obstacles. Therefore, it is suitable for use in monitoring an optical composite overhead ground wire that requires particularly strict maintenance and management.

[Brief description of drawings]

FIG. 1 is a schematic side view showing an apparatus according to an embodiment of the present invention, and FIG.
The figure is a block diagram of a sensor system and a drive system in the apparatus of the embodiment. C ... Aerial cable, 1 ... Device body, 2, 3, 4 ... Wheels, 5 ... Traveling drive motor, 6 ... Sensor, 7 ... Sensor rotation mechanism, 8 ... Sensor rotation motor, 9 ... Control box, 12 …… Transceiver, 17 …… Transceiver,
18 …… Display, 19 …… Display device, 21 …… Hand side device.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hironori Yoshimura 1-5-1, Kiba, Koto-ku, Tokyo Within Fujikura Electric Wire Co., Ltd. (72) Inventor Kozo Konosu 1-1-5, Kiba, Koto-ku, Tokyo Fujikura Electric Wire Co., Ltd.

Claims (1)

[Claims] 1. A device main body that can be self-propelled along an aerial cable, a sensor mounted on the device main body for observing the state of the aerial cable, and the sensor is rotated along the outer circumference of the aerial cable. An aerial cable monitoring device, comprising: a sensor rotating mechanism; and a transmitting device that transmits an output signal of the sensor to a receiving device.