KR101669102B1 - Power line contact Detection device of Crane boom - Google Patents

Power line contact Detection device of Crane boom Download PDF

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Publication number
KR101669102B1
KR101669102B1 KR1020150050494A KR20150050494A KR101669102B1 KR 101669102 B1 KR101669102 B1 KR 101669102B1 KR 1020150050494 A KR1020150050494 A KR 1020150050494A KR 20150050494 A KR20150050494 A KR 20150050494A KR 101669102 B1 KR101669102 B1 KR 101669102B1
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KR
South Korea
Prior art keywords
power line
signal
reel
distance
crane
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KR1020150050494A
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Korean (ko)
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KR20160121066A (en
Inventor
정운남
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주식회사수산중공업
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    • G01R31/021—
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
    • G01R31/024—
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
    • G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
    • G08B5/36—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • General Engineering & Computer Science (AREA)
  • Jib Cranes (AREA)

Abstract

The present invention relates to a device for detecting a power line contact of a crane boom, and more particularly, to a power line sensing antenna using a reel for measuring a boom length in a crane, The present invention relates to an apparatus for detecting a power line contact of a crane boom which can be used regardless of the boom length.
By using the reel used for measuring the boom length in a crane as a power line sensing antenna to sense a power line by means of the present invention, a power supply for detecting a power line is not required, and it can be used regardless of a boom length. So that it is possible to increase the convenience of installation.

Description

Technical Field [0001] The present invention relates to a power line contact detection device for a crane boom,

The present invention relates to a device for detecting a power line contact of a crane boom, and more particularly, to a power line sensing antenna using a reel for measuring a boom length in a crane, The present invention relates to an apparatus for detecting a power line contact of a crane boom which can be used regardless of the boom length.

Electric shock accidents are very serious accidents among industrial accidents, and more than 100 cases are occurred each year, and more than 55% of them are counted as accidents caused by short-circuiting or intercommunication while working near electric power lines.

However, even in this situation, since there is no safety device or warning device that notifies the danger when approaching the power line, it relies on safety education or personal protection area. Therefore, many people are exposed to the risk of electric shock accident at the construction site or power line work site. have.

Particularly, in case of crane, there is no separate protection device, and the number of accidents is increasing each year.

Therefore, there is a growing need for equipment and devices capable of warning danger to operators when accessing power lines.

Korean Registered Patent No. 10-1031027 (Apr. 25, 2011)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a power line sensing antenna for detecting a power line using a reel for measuring a boom length in a crane.

In order to achieve the object of the present invention,

An apparatus for detecting a power line contact of a crane boom according to an embodiment of the present invention includes:

A reel (100) configured to measure a boom length;

A coaxial cable 200 having one end coupled to an end of the reel and the other end coupled to the power line sensing means;

A power line sensing means (300) for generating a sensing data by detecting a frequency generated around a power line when the crane approaches the power line, calculating a distance between the power line and the power line for each sensing data, ; And the present invention solves the problems of the present invention.

According to another aspect of the present invention, there is provided an apparatus for detecting power line contact of a crane boom,

By detecting the power line by using the reel which is used for measuring the boom length in the crane as the power line sensing antenna, it is possible to use it regardless of the boom length, no power supply for power line detection, So that it is possible to increase the convenience of the installation.

1 is a schematic block diagram of an apparatus for detecting power line contact of a crane boom according to an embodiment of the present invention.
2 is a block diagram of power line sensing means of an apparatus for sensing power line contact of a crane boom according to an embodiment of the present invention.

In order to solve the problems of the present invention, an apparatus for detecting power line contact of a rain boom,

A reel (100) configured to measure a boom length;

A coaxial cable 200 having one end coupled to an end of the reel and the other end coupled to the power line sensing means;

A power line sensing means (300) for generating a sensing data by detecting a frequency generated around a power line when the crane approaches the power line, calculating a distance between the power line and the power line for each sensing data, ; And

At this time, the power line sensing means (300)

A bnc connector 310 for connecting a coaxial cable,

A signal processor 320 for amplifying the sensed signal sensed by the reel through the bnc connector and amplifying the sensed signal to a predetermined magnitude for use as data and removing the noise,

A MCU 330 for receiving a sensing signal output from the signal processor and comparing the sensed signal with data for each approach distance to analyze and process the distance between the reel and the power line to generate distance data,

An output unit 340 for outputting a variable alarm sound according to the distance data, outputting a lamp lighting signal and outputting distance information,

A buzzer unit 350 for receiving a variable alarm sound by the output unit and outputting a warning sound,

An LED lamp unit 360 which is turned on by receiving a lamp lighting signal by the output unit,

And an LCD panel 370 for receiving and displaying distance information by the output unit.

At this time, the signal processing unit 320,

A DC dump 321 for removing a DC component,

An amplifier 322 for amplifying the detection signal from which the DC component is removed,

An LPF 323 for passing only a specific frequency from the detection signal amplified by the amplifier,

And an envelope detector 324 for detecting an envelope of the specific frequency.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of an apparatus for detecting power line contact of a crane boom according to the present invention will be described in detail.

1 is a schematic block diagram of an apparatus for detecting power line contact of a crane boom according to an embodiment of the present invention.

As shown in Fig. 1, an apparatus for detecting a power line contact of a crane boom includes a reel 100; A coaxial cable (200); And power line sensing means (300).

The reel 100 is configured to measure the boom length. The reel 100 can be used regardless of the boom length by using the reel for measuring the boom length as an antenna, and no additional power source is required.

As a conventional technique, a method of attaching a power line sensor to each boom stage is used. Since it constitutes a detection sensor for each boom, there is a disadvantage that a power source must be connected to each sensor and an influence indirectly Therefore, there are many restrictions on installation.

In addition, since the analyzing means for receiving the signal transmitted from the sensing sensor and analyzing the signal is separately installed in the crane body or the like, the configuration of the control unit becomes complicated and causes a defect.

In other words, since an algorithm that compares each sensor value with each other is required, it is difficult to analyze in a crane having at least four crowns.

On the other hand, in the case of the present invention, since the analysis process is simple because the power line sensing means is connected to the reel, the analysis algorithm according to the present invention has a simple advantage and an advantage that the error rate is small accordingly.

1, one end of the coaxial cable 200 is coupled to an end of the reel, and the other end of the coaxial cable 200 is coupled to the power line sensing unit.

In other words, since the reel functions sufficiently as an antenna, it is only necessary to connect to a reel that is installed in order to measure the boom length without needing to additionally configure a separate detection sensor or the like in order to detect the power line.

When the crane approaches the power line, the power line sensing unit 300 senses a frequency generated around the power line to generate sensing data, calculates a distance between the sensing line and the power line, and provides output information for each sensing range to the output unit It will be done.

Therefore, it can be used regardless of boom length by using reel for measuring the boom length. It can be used regardless of the length of the boom. It provides the advantage of no need for additional power source. It is convenient to install by coaxial cable between reel and power line sensing means. It will increase sex.

In addition, since the control is performed through one sensing means without separately configuring the sensing sensor and the control means as in the prior art, the control algorithm is simplified and the error rate is reduced accordingly.

2 is a block diagram of power line sensing means of an apparatus for sensing power line contact of a crane boom according to an embodiment of the present invention.

2, the power line sensing unit 300 includes a bnc connector 310, a signal processing unit 320, a MCY 330, an output unit 340, a buzzer unit 350, An LED lamp unit 360, and an LCD panel 370. [0053]

The reason why the buzzer unit, the LED lamp unit, and the LCD panel are combined with each other through the separate output unit is that the power line detection notification may not be recognized due to other noise during the operation, To confirm at the same time.

The bnc connector 310 is configured to connect a coaxial cable.

The reel may be formed longer than the boom length to increase the reception ratio.

The signal processor 320 acquires a sensing signal sensed by a reel through a bnc connector and amplifies the sensed signal to a predetermined size for use as data, and removes noise.

The MCU 330 is configured to provide an output signal with distance data. The MCU 330 receives the sensing signal output from the signal processing unit and compares the sensed signal with the data according to the approach distance to analyze and process the distance between the reel and the power line. Thereby generating distance data.

The technique of generating the distance data by comparing with the data by the approach distance is a general technique, and a detailed description thereof will be omitted.

The output unit 340 outputs a variable alarm sound according to distance data, outputs a lamp lighting signal, and outputs distance information.

For example, if the distance to the power line is about 5 meters, the first alarm sound or alarm interval is output every 2 seconds, and the closer the distance is, the fifth alarm sound or alarm interval is outputted every 0.1 second.

Also, in the case of the lamp unit, a blinking interval is output every second every 0.1 second, and in the case of the LCD panel, the actual distance information is output to the screen.

The buzzer unit 350 receives a variable alarm sound by the output unit and outputs a warning sound. The LED lamp unit 360 is illuminated by receiving a lamp lighting signal by the output unit, and the LCD panel 370 Is provided with the distance information by the output unit and displayed.

The operation of the crane can be controlled so that the safety distance to the power line can be maintained by the MCU so that the crane can stop without depending on the control of the user by detecting the danger distance when the crane reaches the danger distance during the operation , The relay may provide the corresponding distance information at the output.

The signal processing unit 320,

A DC dump 321 for removing a DC component,

An amplifier 322 for amplifying the detection signal from which the DC component is removed,

An LPF 323 for passing only a specific frequency from the detection signal amplified by the amplifier,

And an envelope detector 324 for detecting an envelope of the specific frequency.

In other words, it is converted into data for analyzing the distance from the MCU through the DC dump, the amplifier, the ELF and the envelope detector.

Meanwhile, power may be supplied through the DC-DC converter to operate the power line sensing unit.

As a result, by using the reel used for measuring the boom length in the crane through the above-described configuration and operation, it is possible to use the power line sensing antenna to sense the power line, , The coaxial line between the reel and the power line sensing means only needs to be connected, thereby providing an effect of increasing the convenience of installation.

It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is to be understood, therefore, that the embodiments described above are to be considered in all respects as illustrative and not restrictive.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: Reel
200: Coaxial cable
300: Power line sensing means

Claims (4)

delete delete delete An apparatus for sensing power line contact,
A reel 100 for use as an antenna which can be used regardless of a boom length, and configured to measure a boom length on a crane, which is longer than a boom length to increase a reception ratio;
A coaxial cable 200 having one end coupled to an end of the reel and the other end coupled to the power line sensing means;
A bnc connector 310 for connecting a coaxial cable,
A signal processor 320 for amplifying the sensed signal sensed by the reel through the bnc connector and amplifying the sensed signal to a predetermined magnitude for use as data and removing the noise,
A MCU 330 for receiving a sensing signal output from the signal processor and comparing the sensed signal with data for each distance, analyzing and processing the distance between the reel and the power line to generate distance data,
An output unit 340 for outputting a variable alarm sound according to the distance data, outputting a lamp lighting signal and outputting distance information,
A buzzer unit 350 for receiving a variable alarm sound by the output unit and outputting a warning sound,
An LED lamp unit 360 which is turned on by receiving a lamp lighting signal by the output unit,
And an LCD panel (370) for receiving and displaying distance information by the output unit. The power line sensing unit (300)
The signal processing unit 320,
A DC dump 321 for removing a DC component,
An amplifier 322 for amplifying the detection signal from which the DC component is removed,
An LPF 323 for passing only a specific frequency from the detection signal amplified by the amplifier,
And an envelope detector 324 for detecting an envelope of the passed specific frequency,
The MC oil 330 includes:
And the operation of the crane is controlled so that the safety distance to the power line is maintained so that the crane can no longer depend only on the user's control,
Wherein the power line sensing means is configured to receive power through a DC-DC converter to operate the power line sensing means.
KR1020150050494A 2015-04-09 2015-04-09 Power line contact Detection device of Crane boom KR101669102B1 (en)

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Application Number Priority Date Filing Date Title
KR1020150050494A KR101669102B1 (en) 2015-04-09 2015-04-09 Power line contact Detection device of Crane boom

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150050494A KR101669102B1 (en) 2015-04-09 2015-04-09 Power line contact Detection device of Crane boom

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KR20160121066A KR20160121066A (en) 2016-10-19
KR101669102B1 true KR101669102B1 (en) 2016-10-25

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Publication number Priority date Publication date Assignee Title
KR101031027B1 (en) 2011-01-31 2011-04-25 주식회사 3국산업 Power supply device and use of hybrid excavator

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