JP2013187984A - Mobile object collision prevention apparatus and mobile object collision prevention system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mobile object approach prevention system which clearly indicates a path of an overhead transmission line without being attached to the overhead transmission line, emits light when an alert needs to be given thereby achieving alerting effects without affecting scenery of surrounding areas.SOLUTION: A mobile object collision prevention system includes: linear light emitting means 20 stretched between multiple supporting objects 101 and having multiple light sources 23 in a longitudinal direction; signal reception means 41 placed in each supporting object and receiving a radio signal from transmission means 30 mounted on a mobile object 103; light emitting control means 40 placed in each supporting object and controlling light emission of the light emitting means when the signal reception means receives the radio signal; power sources 47, 49 operating the signal reception means, the light emitting means, and the light emitting control means.

Description

  The present invention relates to a system for preventing a moving object such as an airplane or a helicopter from approaching an overhead power transmission line. In particular, when a moving object is detected by a wireless signal (radio wave) transmitted from a moving object or a proximity sensor, the light source is turned on to alert the operator of the moving object, and a contact accident with an overhead power transmission line It relates to a system to prevent.

To clearly show the existence of high-rise buildings and steel towers that obstruct navigation, such as airplanes and helicopters, and to ensure the safety of aircraft navigation, high-rise buildings, etc. may be equipped with aviation obstruction lights and daytime obstruction signs. Mandatory by aviation law.
The above-mentioned aviation obstacle lights are not installed directly on the overhead power transmission line, so in order to grasp the existence of the overhead power transmission line and the installation route, the position of the overhead power transmission line is determined from the position of the aviation obstacle light. It is necessary to directly check the overhead power transmission line.
However, it is not easy to visually grasp the construction route of the overhead power transmission line particularly in the mountainous area, and accidents in which the helicopter crashes due to contact with the overhead power transmission line frequently occur. Then, the type of illumination lamp which is directly attached to an overhead wire as shown in Patent Document 1 has been proposed.

JP 2001-268760 A

However, since the illuminating lamp shown in Patent Document 1 is directly attached to an overhead power transmission line, a power failure of the line is required during attachment or removal. Moreover, since the illuminating lamp always emits light or blinks, there is a problem that the surrounding scenery is damaged.
The present invention has been made in view of the above circumstances, and can clearly indicate the route of the overhead power transmission line without being attached to the overhead power transmission line, and can emit light when it is necessary to call attention. It is an object of the present invention to provide a moving object approach prevention system that is less likely to affect the scenery and that can effectively exert an alerting effect.

In order to solve the above-mentioned problem, the invention according to claim 1 is arranged between a plurality of supports and linear light emitting means having a plurality of light sources in the longitudinal direction, and disposed on each of the supports. Receiving means for receiving a wireless signal from a transmitting means mounted on a moving object, and a light emission control means for controlling the light emitting means to be emitted when the receiving means receives the wireless signal disposed on each support. And a power source for operating the receiving means, the light emitting means, and the light emission controlling means.
In the invention of claim 1, the linear light emitting means is used while being stretched between a plurality of supports. Since it is not intended to be directly attached to the overhead power transmission line itself, it is not necessary to cause a power failure in the line during installation and removal work. In addition, since the light source arranged in the longitudinal direction emits light, it is possible to easily confirm the route over which the light emitting means is stretched. Further, the light source is caused to emit light when the presence of a moving object is detected by a wireless signal.
A second aspect of the present invention is characterized in that, in the first aspect, the light emitting means is supported by being suspended by a spiral hanger through which a wire rod installed between the supports is inserted.
In the invention of claim 2, since the linear light emitting means is suspended and supported by the spiral hanger, a large tension is not applied in the longitudinal direction of the light emitting means.

According to a third aspect of the present invention, in the first or second aspect of the invention, the proximity sensor that detects the approach of the object to the support is provided, and the light emission control unit is configured so that the proximity sensor approaches the support to the support. The light emission means is controlled to emit light when the light is detected.
In the invention of claim 3, the light source is caused to emit light when the proximity sensor detects the presence of the moving object.
According to a fourth aspect of the present invention, there is provided a transmission unit that is mounted on a moving object and transmits a radio signal, and the moving object collision prevention device according to any one of the first to third aspects. And
The invention of claim 4 operates in the same manner as claims 1 to 3.

  In the present invention, the linear light-emitting means is stretched between a plurality of supports, so that it can be installed regardless of the presence or absence of an overhead power transmission line. Further, since the light emitting means can be stretched along the overhead power transmission line, the route of the overhead power transmission line can be clearly indicated. Moreover, since a light source is light-emitted when a moving object is detected, it is hard to influence the surrounding scenery and the alerting effect can be exhibited effectively.

It is a figure which shows the example of installation of the moving object collision prevention system which concerns on 1st embodiment of this invention. 1 is a schematic diagram of a moving object collision prevention system according to a first embodiment of the present invention. It is a schematic diagram of a luminous tube. (A) thru | or (c) is a figure which shows the attachment procedure of a light emission tube. It is a figure which shows the example of installation of the moving object collision prevention system which concerns on 2nd embodiment of this invention. It is an example of the circuit containing the light emitting diode applied to 2nd embodiment of this invention. It is a schematic diagram of the moving object collision prevention system which concerns on 3rd embodiment of this invention.

  A moving object collision prevention system according to a first embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a diagram illustrating an installation example of a moving object collision prevention system according to the present embodiment. FIG. 2 is a schematic diagram of the moving object collision prevention system according to the present embodiment. In the moving object collision prevention system according to the present embodiment, when a radio wave is received from a transmitter mounted on a moving object, a light emitting diode installed between power transmission towers is caused to emit light to alert the moving object. There is a feature in the point to encourage.

Hereinafter, the moving object collision prevention system according to the present embodiment will be described with reference to an example in which the moving object collision prevention system is installed between power transmission towers constructed in a mountainous area. In addition, the application part of the moving object collision prevention system in the following embodiments is merely an example for explaining the present invention.
The present invention enables early detection of power transmission lines that pass through places that are difficult to see from flying objects (moving objects) such as helicopters and airplanes, such as overhead power transmission lines that pass through mountains and trans-strait cables that pass through the sea. It is a contributing invention.
The moving object collision prevention system 1 includes a linear light emitting tube 20 (a linear light emitting tube 20 (a light source) that is stretched between a plurality of power transmission towers 101 (101A, 101B, 101C: supports) in a longitudinal direction. Light emitting means: see FIG. 3), a receiver 41 (receiving means) for receiving a radio signal from a transmitter 30 (transmitting means) arranged on each power transmission tower 101 and mounted on the moving object 103, and each power transmission A light emission control device 40 (light emission control means) that controls the light emission of the light emitting diode 23 in the light emitting tube 20 when the receiver 41 is placed on the steel tower 101 and receives a radio signal, the receiver 41, the light emitting tube 20, and A solar cell panel 47 and a battery (power source) for supplying power for operating the light emission control device 40 are provided.

FIG. 3 is a schematic view of a luminous tube. As shown in FIG. 3, the light emitting tube 20 includes a plurality of light emitting diodes 23 connected in parallel in an insulating tube 21.
As the tube 21, a tube having a waterproof property and a light resistance such as a vinyl tube, a rubber tube, and a silicon tube can be used. The tube 21 should just be the structure which can discharge | release the light of the light emitting diode 23 outside at least. For example, the entire tube 21 can be transparent or translucent. Alternatively, only the transmissive part 25 that emits light from the light emitting diode 23 to the outside may be transparent or semi-transparent, and the remaining non-transmissive part 27 may be an opaque dark color such as black. By providing a difference in appearance between the transmissive portion 25 and the non-transmissive portion 27, the light from the transmissive portion 25 can be made to stand out, and the visibility when the light emitting diode 23 is turned on can be improved particularly in the daytime.

The light emitting diode 23 is connected to the power supply Vcc side via a resistor 29. A plurality of combinations of resistors 29 and light emitting diodes 23 connected in series are connected in parallel. The interval between the light emitting diodes 23 is, for example, about 0.5 m. Since the light-emitting diodes 23 are connected in parallel, even if some of the light-emitting diodes 23 cannot be lit due to a malfunction, other light-emitting diodes 23 can be lit and the alert function is not lost. .
As the light emitting diode 23, a general light emitting diode may be used, or a self-flashing type in which a flashing circuit is inserted in the body of the light emitting diode may be used. In the case of a light emitting diode that does not incorporate a blinking circuit, the light emission control device 40 controls lighting, blinking, and extinguishing.

Moreover, a monochromatic light emitting diode may be used, or a full color light emitting diode may be used. In the latter case, the light emission control device 40 can emit light while appropriately changing the light emission color, and the light emission color can be changed in accordance with the distance of the moving object, and the light can be emitted in a manner that further improves the visibility. It becomes.
In addition, as a light source built in the light emission tube 20, although it is desirable to use the light emitting diode 23 from a viewpoint of power saving and a long lifetime, it is not limited to this. A light bulb may be used, or another light source may be used.

A method for installing the luminous tube will be described with reference to FIG. FIGS. 4A to 4C are diagrams showing a procedure for attaching the luminous tube.
As shown in FIG. 1, an overhead ground wire 105 (wire) is installed between power transmission towers 101 as existing facilities for protecting an overhead power transmission line from lightning. The overhead ground wire 105 is attached to the upper end of the power transmission tower 101. In the present embodiment, a spiral spiral hanger 107 is used to suspend and support the luminous tube 20 from the overhead ground wire 105.
As shown in FIG. 4A, a self-propelled overhead wire device 111 is attached to an existing overhead ground wire 105, and a spiral hanger 107 and a messenger wire are directed from one power transmission tower 101B to the other power transmission tower 101A. 109 is attached. Both the spiral hanger 107 and the messenger wire 109 are installed in one run, and the overhead ground wire 105 and the messenger wire 109 are inserted into the spiral hanger 107.

Next, as shown in (b), one end 109a of the messenger wire 109 and one end 20a of the light emitting tube 20 are connected by the wire connector 113, and the messenger wire 109 is pulled out to the other end side (the power transmission tower 101A side). As shown in c), the luminous tube 20 is inserted into the spiral hanger 107.
Finally, one end 20a of the light emission tube 20 is electrically connected to the light emission control device 40A installed in the power transmission tower 101A, and the other end 20b of the light emission tube 20 is connected to the light emission control device 40B installed in the power transmission tower 101B. Connect electrically. In addition, the light emission control method of the light emitting diode 23 in the light emitting tube 20 by the light emission control device 40 will be described later.

Here, unlike the overhead power transmission line 115 (see FIG. 1), the overhead ground wire 105 is not a charged line, and thus the light emitting tube 20 can be installed without stopping the power transmission by the overhead power transmission line 115. Moreover, even when it becomes necessary to replace the light emitting tube 20, the work can be easily performed without stopping the power transmission by the overhead power transmission line 115.
The replacement operation of the luminous tube 20 is performed in the same procedure as in FIG. That is, one end of the old light emitting tube and one end of the new light emitting tube are connected, the old light emitting tube is pulled from the other end side, and pulled out from the spiral hanger. The old arc tube can be pulled out of the spiral hanger and the new arc tube can be installed in the spiral hanger at the same time.

The light emission control device 40 will be described with reference to FIG.
The light emission control device 40 (40A, 40B, 40C) is a device installed for each power transmission tower 101 (101A, 101B, 101C), and receives a radio signal transmitted from the transmitter 30 mounted on the moving object 103. Receiver 41, a proximity sensor 43 that detects the approach of the moving object 103 to the power transmission tower 101, and a control unit 45 that controls the light emission of the light emitting tube 20. Further, as a power source for operating the light emission control device 40 and causing the light emitting tube 20 to emit light, a solar cell panel 47 that generates power using sunlight, a battery 49 that stores electric power produced by the solar cell panel 47, It has. The light emission control device 40 and the light emitting tube 20 are electrically connected.

As the moving object 103 to which the moving object collision prevention system 1 is applied, a flying body such as a helicopter or an airplane is particularly suitable, but the transmitter 30 is attached to a ground heavy machine that may approach the overhead power transmission line 115 and used. May be.
The transmitter 30 mounted on the moving object 103 is a device that transmits a radio signal (moving object signal) having a predetermined frequency. Since a transmitter having a general configuration can be used, description thereof is omitted here.
A receiver 41 built in the light emission control device 40 receives a radio signal transmitted from the transmitter 30 mounted on the moving object 103. Since a receiver having a general configuration can be used as the receiver 41, description thereof is omitted here.

The proximity sensor 43 is a sensor that detects a moving object 103 that has entered a predetermined range around the power transmission tower 101. As the proximity sensor 43, an ultrasonic wave or electromagnetic wave (microwave, millimeter wave) is transmitted, and from the change in the return time of the reflected wave when the ultrasonic wave or electromagnetic wave hits the moving object, the presence of the moving object, the approaching state, In addition, a sensor for observing the withdrawal situation can be used. The proximity sensor 43 may be provided integrally with the light emission control device 40 or may be provided separately. In the case of a separate body, the proximity sensor 43 can be installed at a location optimal for detecting the moving object 103. Of course, the proximity sensor 43 electrically connected to one light emission control device 40 may be single or plural.
The control unit 45 includes a CPU (Central Processing Unit), a ROM (Read Only Memory) that stores programs for executing processing, and a RAM (Random Access Memory) that temporarily stores programs and data executed by the CPU. It can comprise from the known computer apparatus with which it was equipped.
When the wireless signal transmitted from the transmitter 30 of the moving object 103 is received by the receiver 41, the control unit 45 performs a process of turning on (or blinking) the light emitting diode 23 in the light emitting tube 20. Further, when the wireless signal is not received, a process for turning off the light emitting diode 23 is performed.

When the proximity sensor 43 detects that the moving object 103 has entered the predetermined range of the power transmission tower 101, the control unit 45 turns on (or blinks) the light emitting diode 23 in the light emitting tube 20. Process. When the proximity sensor 43 no longer detects a moving object, a process for turning off the light emitting diode 23 is performed.
Note that when the moving object 103 is still being detected by either the receiver 41 or the proximity sensor 43, the process of turning off the light emitting diode 23 is not performed.
In the present embodiment, the approach of the moving object 103 to the power transmission tower 101 is detected by both the wireless signal transmitted from the moving object 103 and the detection by the proximity sensor 43, and the light emitting diode 23 is controlled to emit light. The light emitting diode 23 can also emit light when a moving object not equipped with the machine 30 approaches the power transmission tower 101. The operator (driver) of the moving object can recognize the presence of the power transmission tower 101 and the overhead power transmission line 115 and can prevent approach.

The solar cell panel 47 is a device that converts sunlight into electric power. The electric power produced by the solar cell panel 47 is stored in the battery 49. The solar cell panel 47 is installed on the uppermost part of the power transmission tower 101, which is a position that is not shaded by the steel material constituting the power transmission tower 101, the overhead power transmission line 115, or the like (see FIG. 1).
The battery 49 stores the electric power produced by the solar cell panel 47. Even when the sunshine is insufficient or when the solar panel 47 cannot generate power, such as at night, the light emission control device 40 can be operated using the battery 49 as a power source. The battery 49 is a constant voltage power supply and can provide a constant voltage to the light emitting diodes 23 in the light emitting tube 20.
In this embodiment, since electric power for driving each part is obtained from sunlight, maintenance is unnecessary for a long period of time. Moreover, since the driving power is not obtained from the overhead power transmission line 115, even if the power transmission of the overhead power transmission line 115 is temporarily stopped, the light emitting diode 23 in the light emitting tube 20 can be caused to emit light. , Do not lose the alert function.

  A light emission control method of the light emitting diode 23 by the light emission control device 40 will be described. The light emission control device 40 controls the light emitting diode 23 to emit light while a moving object is detected by the receiver 41 or the proximity sensor 43. This light emission control can be combined with control for lighting continuously, control for blinking, and control for appropriately changing the emission color when the light source is a full-color light emitting diode. The light emission mode can be changed according to the distance between the moving object 103 and the power transmission tower 101 detected by the proximity sensor 43, for example. Further, a timer may be built in the light emission control device 40, and the light emitting diode 23 may be controlled to be switched on and off at regular intervals.

Here, the connection relationship between the light emitting tube and the light emission control device and the light emission control relationship by the light emission control device will be described. This will be described with reference to FIGS. As shown in FIG. 1, in the present embodiment, one luminous tube 20 is installed between two power transmission towers 101. Explaining with an example between the power transmission towers 101A and 101B, the light emission control device 40A installed in one power transmission tower 101A is electrically connected to one end 20a of the light-emitting tube 20, and the other end 20b of the light-emitting tube 20 is connected. Is electrically connected to the light emission control device 40B installed on the other power transmission tower 101B (see FIGS. 2 and 3).
When the receiver 41 or proximity sensor 43 of one light emission control device 40A detects the presence of the moving object 103, a voltage necessary for light emission is applied to the light emitting diode 23 from the control unit 45 of the light emission control device 40A. Is done. In this state, when the receiver 41 or the proximity sensor 43 installed on the other power transmission tower 101B detects the presence of the moving object 103, the light emission control device 40B also needs to emit light to the light emitting diode 23. A large voltage is applied.

Here, the power sources of the respective light emission control devices 40A and 40B are constant voltage power sources, and the respective batteries 49 of the respective light emission control devices 40A and 40B are connected in parallel and are applied with the same voltage to the respective light emitting diodes 23. (See FIG. 3). Therefore, even if a voltage is simultaneously applied from both the light emission control devices 40A and 40B, each light emitting diode 23 emits light normally.
Further, when the receiver 41 or the proximity sensor 43 installed on the power transmission tower 101A no longer detects the moving object 103, the light emission control of the light emitting diode 23 by the light emission control device 40A is terminated. The light emission control by the light emission control device 40B is continued until the receiver 41 or the proximity sensor 43 installed in the power transmission tower 101B does not detect the moving object 103.
As described above, in the present embodiment, the light emitting diode 23 in the light emitting tube 20 installed between the two power transmission towers 101A and 101B is controlled to emit light by the two light emission control devices 40A and 40B. Furthermore, the light emission control device 40B installed in one power transmission tower 101B is provided between the light emitting tube 20 installed between the power transmission tower 101A on the upstream side of power transmission and the power transmission tower 101C on the downstream side of power transmission. The light emission of both of the installed light emitting tubes 20 is controlled. Therefore, the light emission area of the light emitting tube 20 spreads radially as if centering on the power transmission tower 101 in which the light emission control device 40 in which the approach of the moving object 103 is detected by the receiver 41 or the proximity sensor 43 is installed.

  As described above, the moving object collision prevention system according to the present invention has been described with reference to an example in which the moving object collision prevention system is applied to a power transmission tower. For example, the light-emitting tube may be stretched below an overhead electric wire installed between two power poles, and the ground heavy machinery approaching from below may be alerted by light. In this case, if the luminous tube is supported by hanging it using a spiral hanger against an insulating Kevlar tube (wire material) installed under the overhead electric wire so that the heavy machinery does not approach the charged part of the overhead electric wire Good.

As described above, according to the present embodiment, since each light emitting diode arranged in the longitudinal direction of the linear light emitting tube stretched along the overhead power transmission line is caused to emit light, the route of the overhead power transmission line is indirectly set. It becomes easier to grasp and can effectively call attention. Moreover, since the light emission tube in a certain range shines around the power transmission tower in which the light emission control device that detects the moving object is installed, it is possible to call attention effectively. In addition, since light is emitted only when a moving object approaches, it is easier to find its presence than a constantly illuminating marker lamp, and the alerting function can be enhanced, and the surrounding landscape is hardly affected.
Furthermore, since the detection of the moving object is performed based on the two detections of the wireless signal from the moving object and the detection by the proximity sensor, the detection accuracy of the moving object can be increased and the reliability of the system can be improved. In addition, since the light emitting tube is installed using an overhead ground wire which is an existing equipment, the equipment cost can be reduced. In addition, since the spiral hanger is used to support the light emitting tube, the tension applied in the longitudinal direction of the light emitting tube can be reduced and damage can be prevented.

[Second Embodiment]
A moving object collision prevention system according to a second embodiment of the present invention will be described with reference to FIG. FIG. 5 is a diagram illustrating an installation example of the moving object collision prevention system according to the present embodiment.
The flying object collision prevention system according to the present embodiment is characterized in that two luminous tubes are stretched between power transmission towers, and each luminous tube is controlled by one luminous control device. Hereinafter, the same members as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
The moving object collision prevention system 2 includes light emitting tubes 20A, 20B, and 20C whose light emission is controlled by the light emission control devices 40A, 40B, and 40C installed in the power transmission towers 101A, 101B, and 101C, respectively. . One light-emitting tube 20 is extended over three adjacent power transmission towers 101, and light emission is performed by the light emission control device 40 installed in the power transmission tower 101 located in the middle of the three power transmission towers 101. The tube 20 is controlled.

For example, the light emitting tube 20B is installed across the power transmission tower 101A located on the upstream side in the power transmission direction with respect to the power transmission tower 101B and the power transmission tower 101C located on the upstream side in the power transmission direction. The light emission control device 40B that controls the light emitting tube 20B is installed in the power transmission tower 101B.
Other light emitting tubes, light emission control devices, and power transmission towers are also installed. Accordingly, two light emitting tubes 20 are installed between each power transmission tower 101. That is, the point from which the light emission control apparatus 40 from which the light emission of the light emission tube 20 constructed within the same diameter is controlled is different from 1st embodiment. In the present embodiment, since the light emission of the light emitting tube 20 is controlled by the single light emission control device 40, the light emitting diode 23 can emit light in a complicated light emission mode.

FIG. 6 is an example of a circuit including a light emitting diode applied to this embodiment. In this circuit, a plurality of light emitting diodes are divided into several groups and connected to the power supply voltage Vcc side. That is, each light emitting diode 23 in the light emitting tube 20 is divided into a light emitting diode 23a constituting the first group, a light emitting diode 23b constituting the second group, and a light emitting diode 23c constituting the third group. I can do it.
When the moving object 103 is detected by the receiver 41 or the proximity sensor 43 (see FIG. 2), the control unit 45 first turns on the light emitting diode 23a, then turns off the light emitting diode 23a and turns on the light emitting diode 23b. Finally, by sequentially performing the control of turning off the light emitting diode 23b and turning on the light emitting diode 23c, it is possible to provide a visual effect that the light emitting point moves along the longitudinal direction of the light emitting tube 20.
As described above, according to the present embodiment, since one light emitting tube is controlled by one light emission control device, it is possible to increase the degree of freedom of control when the light emitting diode emits light. Contributes to the improvement of sex.

[Third embodiment]
A moving object collision prevention system according to a third embodiment of the present invention will be described with reference to FIG. FIG. 7 is a configuration diagram of a light emission control device of the flying object collision prevention system according to the present embodiment. In the flying object collision prevention system according to this embodiment, as in the first embodiment (see FIG. 2), a light emission control device is connected to both ends of one light emission tube, and light emission is performed by each light emission control device. By detecting the voltage applied to the tube, the light emitting tube is controlled by only one of the two light emission control devices connected to both ends of the light emitting tube.
The light emission control device 40 of the moving object collision prevention system 3 incorporates a voltmeter 51 that measures the voltage applied to the light emitting diode 23. For example, consider a case where one light emission control device 40A performs light emission control and the other light emission control device 40B does not perform light emission control for the light emitting tube 20 controlled by both the light emission control device 40A and the light emission control device 40B. At this time, the voltage applied from the light emission control device 40A to the light emitting diode 23 is detected by the voltmeter 51 of the light emission control device 40B. When the applied voltage is detected by the voltmeter 51 of the light emission control device 40B, the light emission control device 40B does not perform the light emission control of the light emitting diode 23.
When the light emission control device 40A detects the moving object 103 by the receiver 41 or the proximity sensor 43, the light emission control device 40A detects the voltage applied to the light emitting diode 23 by the voltmeter 51. That is, the light emission control device 40A detects whether a voltage necessary for light emission is applied to the light emitting diode 23, in other words, whether the light emitting diode 23 emits light.

When the voltage necessary for light emission is not applied, the light emission control device 40A performs light emission control of the light emitting diode 23 as in the first embodiment. When a voltage necessary for light emission is applied, it means that the other light emission control device 40B performs light emission control of the light emitting diode 23. Therefore, the light emission control device 40A does not perform light emission control of the light emitting diode 23. . At this time, light emission control of the light emitting diode 23 is performed only by the light emission control device 40B.
The light emission control device 40A continues to detect the voltage by the voltmeter 51. When the moving object 103 is detected by the receiver 41 or the proximity sensor 43 and the voltmeter 51 detects that the voltage necessary for light emission is not applied to the light emitting diode 23, the light emission control device 40A 23 emission control is started.

In this way, a voltmeter for detecting the voltage applied to the light emitting tube 20 is provided in the light emission control device 40, and it is determined whether or not to perform light emission control by the light emission control device according to the detection result by the voltmeter 51. Therefore, the light emission control of the light emitting diode 23 can be controlled by switching to either one of the two light emission control devices 40. By controlling in this way, the load applied to the light emitting diode 23 can be reduced and the life of the light emitting diode 23 can be extended. An ammeter may be used instead of the voltmeter.
Moreover, you may apply the light emission control apparatus 40 which concerns on this embodiment with respect to the moving object collision prevention system 2 which has arrangement | positioning and structure of the light emission tube which concerns on 2nd embodiment.
Although the present invention has been described above, the present invention is not limited to the above-described embodiment, and can be implemented with various modifications within the scope of the technical idea of the present invention.

  1, 2, 3 ... Moving object collision prevention system, 20 ... Light-emitting tube, 20a ... One end, 20b ... Other end, 21 ... Tube, 23 ... Light-emitting diode, 25 ... Transmission part, 27 ... Non-transmission part, 29 ... Resistance, DESCRIPTION OF SYMBOLS 30 ... Transmitter, 40 ... Light emission control apparatus, 41 ... Receiver, 43 ... Proximity sensor, 45 ... Control part, 47 ... Solar cell panel, 49 ... Battery, 51 ... Voltmeter, 101 ... Transmission tower, 103 ... Movement Object, 105 ... overhead wire, 107 ... spiral hanger, 109 ... messenger wire, 111 ... self-propelled overhead wire device, 113 ... wire connector, 115 ... overhead power transmission line

Claims (4)

Linear light-emitting means stretched between a plurality of supports and having a plurality of light sources in the longitudinal direction;
Receiving means for receiving a radio signal from a transmitting means arranged on each support and mounted on a moving object;
A light emission control means for controlling light emission of the light emission means when the reception means is disposed on each support and receives the wireless signal;
A moving object collision preventing apparatus, comprising: the receiving unit; the light emitting unit; and a power source for operating the light emission control unit.   The moving object collision preventing apparatus according to claim 1, wherein the light emitting means is suspended and supported by a spiral hanger that passes through a wire rod installed between the supports. A proximity sensor for detecting the approach of an object to the support;
3. The moving object collision preventing apparatus according to claim 1, wherein the light emission control unit controls the light emission unit to emit light when the proximity sensor detects the approach of the object to the support. A transmission means mounted on a moving object for transmitting a radio signal;
A moving object collision prevention system comprising: the moving object collision prevention apparatus according to any one of claims 1 to 3.

Images