KR101417795B1 - Instrumentation device for remote telemeter using power line communication - Google Patents

Abstract

The present invention relates to a measuring apparatus for remote metering based on a power line communication, and more particularly, to a measuring apparatus for a remote meter reading based on a power line communication, a waterproof connector connected to the coupler by a wire, and a second screw hole through which a probe screw is inserted at a position corresponding to the first screw hole. The lower surface of the coupler is pierced by the tip of the probe screw, And a first groove part through which a pair of fastening bands for fastening the power cable are passed is formed at both ends of the fastening band along the longitudinal direction of the fastening band. And a measuring apparatus for remote meter reading. According to the present invention, it is possible to use a power cable having a simple construction and a coupling in a gripping portion to output only a PLC signal instead of a power output, thereby being electrically safe and having various diameters. It is possible to reduce the construction cost and apply the present invention to both the electric pole meter for Jeonju and the electric meter for KEPCO.

Description

TECHNICAL FIELD [0001] The present invention relates to an apparatus for measuring telemeter using power line communication,

The present invention relates to a measuring apparatus for remote metering and, in particular, it can be used for a power cable having a simple construction, electrically safe, and having various sizes of diameters, And more particularly, to a measuring apparatus for remote meter reading based on a power line communication applicable to both a Jeonju and KEPCO electric meter box.

In general, the remote meter reading system refers to a system that converts measurement results from a measurement object at a remote location to an electrical signal, transmits data through a communication network, and processes the data in the terminal.

Remote meter reading has been developed as a new information communication service due to the development of communication technology, sensing technology and computer technology. Recently, it has been widely used in pollution monitoring, method, disaster prevention, power, water supply and gas system.

Such an automatic meter reading system is classified into a wireless system having no communication line and a wired system having a communication line according to the communication system to be used.

Here, the wired method is classified into a power line method, a cable method, a dedicated line method, and a telephone line method depending on the type of communication sill used.

At this time, the power line method is a method using power line communication (PLC), in which a power company uses a power line used for supplying electricity to a home, a factory, or an office as a signal transmission path.

The power line communication uses a commercial AC signal as a transmission medium and communicates data on a power line. Since the sine wave of 60 Hz, which is commercial AC power, and the communication signal (for example, several tens of KHz) are multiplexed and transmitted at the same time, Wherever power is available, communication is possible.

However, in the current power line communication method, a probe connected to a power line is located close to a transformer to add a communication signal to a power line, or a communication signal is extracted from a power line, have.

Therefore, various harmonics such as a corona and noise are generated from a transformer or an electric appliance, and the amount of electric power can not be detected properly.

This causes the remote meter reading itself to fail or errors in the meter itself. The meter reading rate is getting better at dawn time when there is no power use.

In order to solve this problem, attempts have been made to use a noise filter, but communication signals and noise are attenuated together, and in reality, remote meter reading by power line communication is practically performed.

FIG. 1 is a diagram illustrating an example of a conventional meter reading apparatus for remote meter reading based on a power line communication. Referring to FIG. 1, a conventional measuring apparatus for remote meter reading based on a power line communication includes a probe 10 for piercing a power cable installed in a pole P, a probe 10 for pivoting the probe 10, A flexible wire 30 surrounding the outer diameter of the wire 20 and a film band 40 of metal supporting the wire 30, Consists of components,

At this time, a coupler 60 for extracting only a PLC signal and an earth leakage breaker 70 are accommodated in the housing 50.

Such a conventional measuring apparatus for remote meter reading based on a power line communication has disadvantages in that a complex part is installed in Jeonju (P), and thus there is a disadvantage that aesthetics are hindered. In addition, since installation of various components is complicated, There is a problem that installation cost is very high due to installation of parts.

In addition, there is a very dangerous problem that electric shock occurs due to the gap between the screw of the probe (P) and the power cable when piercing a power cable having a diameter of various sizes.

In addition, since only one large probe 10 is used at first to pierce a power cable having a large diameter, it is disadvantageous in that it can not be applied to a small-sized KEPCO electric meter box.

In other words, if the probe 10 of different size for piercing a power cable of a small diameter to a large diameter is manufactured and operated, the operation cost is inevitably increased, and if the small probe 10 for a KEPCO electric meter is separately manufactured, There is also a problem that operating costs are inevitably rising.

Korea Patent Registration No. 10-0475977 Korean Registered Utility Model Registration No. 20-0448770

It is an object of the present invention to solve the above-mentioned problems and it is an object of the present invention to provide a power cable which is simple in construction, is electrically safe, can be used for a power cable having various diameters, And to provide a measuring device for remote meter reading based on a power line communication applicable to both a Jeonju and KEPCO electric meter box.

According to an aspect of the present invention, there is provided a probe screw comprising: a probe screw having a conductive tip, A coupler for outputting only a power line communication signal, not a power output, through the probe screw; The probe screw is fixed to a first screw hole located at one side edge of the curvilinear portion and penetrates the sheath covering of the power cable at the time of rotation. The probe screw is connected to the coupler portion and transmits the power line communication signal probed from the power cable through the probe screw, A connector for transmitting to the collecting unit; Wherein the power cable is fixed to the center portion of the power cable so that the probe screw is pierced, a screwed portion of the power cable is threadedly engaged with the screw of the probe screw, and a supporting plate slidably engaged with the upper plate, And a top plate in the form of a tunnel which is detachably and slidably coupled to the support plate so as to be positioned.

Further, the present invention is a probe screw having an electrically conductive tip, the tip of which is an auger type and a thread is formed on an outer diameter surface; A coupler for outputting only a power line communication signal, not a power output, through the probe screw; A connector connector coupled to the coupler portion for transmitting a power line communication signal probed from the power cable to the data acquisition unit via the probe screw; A support plate for fixing the power cable so that the probe screw is pierced at a central portion of the power cable, and selectively detachably coupling a screw hole of the probe screw with a second screw hole, an upper plate or a middle plate; And a top plate detachably coupled to the support plate so that the power cable can be positioned between the support plate and the support plate.

The present invention also provides a probe screw having a conductive tip, the distal end of which is an auger type and has a thread formed on an outer diameter surface thereof; A coupler for outputting only a power line communication signal, not a power output, through the probe screw; A connector coupled to the coupler portion for transmitting a power line communication signal probed from the power cable to the data acquisition unit via the probe screw; A support plate for fixing the power cable so that the probe screw is pierced at a central portion of the power cable, screwed with a thread of the probe screw, and detachably coupling the middle plate or the upper plate; Wherein the power cable is interposed between the support plate and the support plate so that the power cable can be positioned between the support plate and the upper plate. In the case where the intermediate plate is further coupled between the support plate and the upper plate, It is possible to locate the power line cable of a larger diameter than when only the upper plate is coupled.

The mutual coupling of the support plate, the middle plate, and the upper plate may be slidingly coupled.

The present invention also provides a probe screw having a conductive tip, the distal end of which is an auger type and has a thread formed on an outer diameter surface thereof; A coupler for probing a power line communication signal through the probe screw; A connector electrically connected to the coupler portion; Wherein the integrated cable connecting the connectors of the plurality of power line communication based remote metering measuring apparatuses in parallel can be included in the measuring apparatus for remote metering based on the power line communication.

The present invention can be applied to a power cable having a variety of sizes, which is easy to construct, is electrically safe by outputting a PLC signal instead of a power output by designing a coupling in a grip portion, It is possible to reduce the cost, and it has an effect to be applied to both the electric pole meter for KEPCO and KEPCO.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate preferred embodiments of the invention and, together with the description, serve to further the understanding of the technical idea of the invention, And shall not be construed as interpretation.
1 is a diagram illustrating an example of a conventional measuring apparatus for remote meter reading based on a power line communication,
2 to 4 are perspective views showing a measuring apparatus for remote meter reading based on a power line communication according to a first embodiment of the present invention,
5 and 6 are perspective views showing a measuring apparatus for remote meter reading based on a power line communication according to a second embodiment of the present invention,
7 to 9 are perspective views showing a measuring apparatus for remote meter reading based on a power line communication according to a third embodiment of the present invention,
10 to 14 are diagrams illustrating an example of a measuring apparatus for remote meter reading based on a power line communication according to an embodiment of the present invention.

Hereinafter, a preferred embodiment of a measuring apparatus for remote meter reading based on power line communication according to the present invention will be described in detail.

2 to 4 are perspective views showing a measuring apparatus for remote meter reading based on a power line communication according to a first embodiment of the present invention. 2 to 4, a measuring apparatus for remote meter reading based on a power line communication according to a first preferred embodiment of the present invention includes a probe screw 100, a coupler unit 200, a connector 300, and a support plate 400, Which will be described in detail as follows.

The probe screw 100 is pierced by a power cable C installed in an electric meter for electric pole or KEPCO and is used to extract a PLC (Power Line Communication) signal by directly contacting an electric wire located in the electric cable C Signal extraction member.

Here, the probe screw 100 is made of a conductive material, a predetermined thread is formed on an outer diameter surface thereof, and a tip end is formed as an auger type in order to pierce the power cable C.

That is, in order for the probe screw 100 to extract the PLC signal of the power cable C, the probe screw 100 is rotated by the user through the outer cover of the power cable C, (100) are in direct contact with each other.

The coupler 200 includes a first screw hole 210 through which the probe screw 100 passes. The connector 300 is connected to the coupler unit 200 by electric wires. At this time, the connector 300 may be a waterproof connector 300 for preventing foreign matter from entering.

The power cable C is fixed to the support plate 400 in a state where the power cable C is in direct contact with the lower surface of the support plate 400.

The support plate 400 may be configured such that the power cable C fixed in contact with the lower surface of the support plate 400 is pierced by the probe screw 100. [ A second screw hole 410 is formed through the probe screw 100 to allow the power cable C to be pierced.

At this time, the second screw hole 410 is formed at a position corresponding to the first screw hole 210.

The power cable C is fixed to the support plate 400 in a state where the power cable C is in contact with the lower surface of the support plate 400 by using a predetermined fastening band 500, .

The first recessed portion 420 is formed in the support plate 400. The first recessed portion 420 may be formed in a shape corresponding to that of the support plate 400 And each of the fastening bands 500 is formed with a predetermined groove in a direction in which the power cable C is wrapped.

The pair of fastening bands 500 surround one surface of the first yaw trough 420 to fasten the power cable C to the support plate 400 while surrounding the power cable C, 400 are formed with through holes 421 through which the fastening bands 500 can pass.

That is, a power cable C of about 160 square millimeters or more is fastened to the support plate 400 through the fastening band 500. The power cable C is curved inward at the lower surface of the support plate 400, So that the power cable C can be fastened to the support plate 400 in such a manner as to surround the outer diameter of the power cable C. [

Here, the structure in which the power cable C is fastened to the support plate 400 using the fastening band 500 will be described in more detail. First, a power cable C of about 160 square millimeters or more is cut into a concave And is brought into close contact with the lower surface of the support plate 400 made of a curved surface.

Then, when a pair of fastening bands 500 is provided, the power cable C is fastened to the support plate 400 using the fastening band 500, Passes through the through hole 421 formed in the one recessed portion 420 and winds the power cable C.

In this case, the power cable C is fixed to the support plate 400 by the fastening band 500. For reference, the material of the fastening band 500 is preferably plastic or stainless steel.

This is because the lower surface of the support plate 400 and the outer surface of the power cable C can contact each other on a wider surface and the lower surface of the support plate 400 is curved, And the power cable (C) is fastened to the support plate (400) more tightly because it is fixed by the fastening band (500).

A predetermined concavity and convexity 430 may be formed on the lower surface of the support plate 400 having the curved surface. This is because the unevenness 430 is formed between the power cable C and the support plate 400 to prevent the power cable C from slipping on the lower surface of the support plate 400, There is an advantage to be able to do.

5 and 6 are perspective views illustrating a measuring apparatus for remote meter reading based on a power line communication according to a second embodiment of the present invention. Referring to FIGS. 5 and 6, an upper plate 600 having a tunnel shape opened in both directions may be coupled to an upper portion of the support plate 400. Referring to FIG.

A first engaging portion 610 is formed at both lower portions of the upper plate 600 so as to be slidably engaged with the first recessed portion 420.

That is, since the first coupling portion 610 is formed in a block type in which both the central portion and the first coupling portion 610 are bent inward, the first coupling portion 610 may be formed through the through hole 421 of the first yaw groove portion 420, 1 coupling portion 610 is slidably inserted into the first recessed portion 420 and finally the upper plate 600 is coupled to the support plate 400 in a block manner.

This is because the power cable C of about 160 square millimeters or more is not fastened to the lower surface of the support plate 400 by the fastening band 500 but is fastened to the power cable C of less than about 60 square millimeters to be.

The power cable C is positioned between the upper surface of the support plate 400 and the inner surface of the upper plate 600 and the power cable C is supported by the support plate 400 and the upper plate 600, C).

At this time, a plurality of protrusions 620 are further formed on the inner surface of the upper plate 600 so that the power cable C is securely fastened and fixed between the upper surface of the support plate 400 and the upper plate 600.

7 to 9 are perspective views showing a measuring apparatus for remote meter reading based on a power line communication according to a third embodiment of the present invention. 7 to 9, a separate middle plate 700 may be further provided between the support plate 400 and the upper plate 600.

That is, the middle plate 700 is further disposed between the support plate 400 and the upper plate 600, so that the power cable C can be fastened with a power cable C of more than about 60 square millimeters and less than about 160 square millimeters.

Here, the middle plate 700 has a lower portion formed with a second coupling portion 710 having the same shape as the first coupling portion 610 formed at the lower portion of the upper plate 600. A second recessed portion 720 having the same shape as that of the first recessed portion 420 of the support plate 400 is formed on the upper portion.

That is, the second engaging portion 710 formed at the lower portion of the middle plate 700 is slidably engaged with the first recessed portion 420 of the supporting plate 400 to fasten the middle plate 700 to the supporting plate 400 And the first engaging portion 610 formed at the lower portion of the upper plate 600 is slidably coupled to the second recessed portion 720 formed on the upper portion of the middle plate 700. Thus, And the upper plate 600 is formed of a single body.

10 to 14 are diagrams illustrating an example of a measuring apparatus for remote meter reading based on a power line communication according to an embodiment of the present invention. 10 to 14, the coupler unit 200 further includes a BNC or RF type input / output terminal 220.

That is, a BNC or RF type input / output terminal 220 is separately installed in the coupler unit 200 to transmit a PLC signal probed through the probe screw 100 to a data acquisition unit (DCU) . This means that the PLC signal is transmitted to the data acquisition unit via the BNC or RF terminal.

For example, when the measurement apparatus according to the present invention is applied to a pole for a single-phase consisting of N-phase and R-phase, a coupler unit 200 having a BNC or RF type input / output terminal 220 is provided on the N-phase, Or the RF type input / output terminal 220 is provided. At this time, the N phase and the R phase are connected to each other through the connector 300.

When applied to a three-phase electric pole consisting of N-phase, R-phase, S-phase and T-phase, the N phase transmits the PLC signal probed through the probe screw 100 to a data acquisition unit (DCU) A coupler unit 200 having a BNC or RF type input / output terminal 220 for the BNC or RF type and a coupler unit 200 having the BNC or RF type input / ). At this time, the couplers 200 are connected in parallel to each other through the connector 300.

An R phase coupler unit 200 of the same type as the N phase coupler unit 200 having no BNC or RF type input / output terminal 220 will be described with reference to FIG. Is connected to a predetermined modem through the connector 300. [

That is, when the measuring device of the present invention is installed in the electric pole for electric power rather than in the KEPCO electric meter as described above, the N phase coupler unit 200 having the BNC or RF type input / output terminal 220 and the BNC or RF type And a coupler unit 200 having no input / output terminal 220 is provided.

As shown in FIG. 12, the measuring apparatus for remote meter reading based on the power line communication according to the embodiment of the present invention may include an integrated cable 800.

The integrated cable 800 can connect a plurality of power line communication based remote metering measuring devices.

On the other hand, a plurality of individual terminals 810 are connected to one end of the integrated cable 800 and connected to the connector 300 of the measuring apparatus for remote meter reading based on each power line communication. And an integration terminal 830 for collecting signals transmitted from the terminal 810 and transmitting the collected signals to a modem, for example.

At this time, the integrated cable 800 includes a plurality of power line communication-based remote metering measuring apparatuses having different coupler units 200, such as an N-phase coupler unit 200 or an R-phase coupler unit 200, You can also connect.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, And will fall within the scope of the appended claims.

100: Probe screw 200: Coupler part
210: first screw hole 220: input / output terminal
300: connector 400:
410: second screw hole 420: first recessed groove
430: uneven 500: fastening band
600: upper plate 610: first coupling portion
620: protrusion 700: middle plate
710: second coupling portion 720: second yaw groove portion
C: Power cable

Claims (5)

A probing screw (100) having an electrically conductive tip whose tip is an auger type and a thread is formed on an outer diameter surface;
A coupler (200) for outputting only a power line communication signal, not a power output, through the probe screw (100);
The probe screw is fixed to a first screw hole 210 located at one side edge of the curvilinear part 200 so as to penetrate the sheath coating of the power cable during rotation,
A connector 300 connected to the coupler unit 200 for transmitting the power line communication signal probed in the power cable C to the data collecting unit via the probe screw 100;
The power cable C is fixed to the center of the power cable C so that the probe screw 100 is pierced and is screwed with the thread of the probe screw 100 and is detachably attached to the upper plate 600 A supporting plate (400) slidingly engaged;
And a tunnel type top plate (600) detachably coupled to the support plate (400) so that the power cable (C) can be positioned between the power plate and the support plate (400) Measuring device for remote meter reading. A probing screw (100) having an electrically conductive tip whose tip is an auger type and a thread is formed on an outer diameter surface;
A coupler (200) for outputting only a power line communication signal, not a power output, through the probe screw (100);
A connector 300 connected to the coupler unit 200 for transmitting the power line communication signal probed in the power cable C to the data collecting unit via the probe screw 100;
A second screw hole 410 to which the power cable C is fixed so that the probe screw 100 is pierced at a central portion of the power cable C and is screwed with a thread of the probe screw 100, A support plate 400 for selectively detachably coupling the base plate 600 or the middle plate 700;
And a top plate (600) detachably coupled to the support plate (400) so that the power cable (C) can be positioned between the support plate (400) Device. A probing screw (100) having an electrically conductive tip whose tip is an auger type and a thread is formed on an outer diameter surface;
A coupler (200) for outputting only a power line communication signal, not a power output, through the probe screw (100);
A connector 300 connected to the coupler unit 200 for transmitting the power line communication signal probed in the power cable C to the data collecting unit via the probe screw 100;
The power cable C is fixed to the central portion of the power cable C so that the probe screw 100 is pierced and is screwed to the thread of the probe screw 100 and inserted into the middle plate 700 or the top plate 600 A support plate 400 detachably coupling the support plate 400;
And a structure in which the support plate 400 is detachably coupled to the support plate 400 in order of the middle plate 700 and the top plate 600 so that the power cable C can be positioned between the support plate 400 and the support plate 400,
When the middle plate 700 is further coupled between the support plate 400 and the upper plate 600, the power line cable C having a diameter larger than that of the upper plate 600 alone is placed on the support plate 400 Wherein the control unit is operable to control the power of the power supply. The method according to claim 2 or 3,
Wherein the mutual coupling of the support plate (400), the middle plate (700), and the top plate (600) is a sliding coupling. A probing screw (100) having an electrically conductive tip whose tip is an auger type and a thread is formed on an outer diameter surface; A coupler (200) for probing a power line communication signal through the probe screw (100); A connector 300 electrically connected to the coupler unit 200; And a control unit for controlling the power supply,
And an integrated cable (800) for connecting the connectors (300) of the plurality of power line communication based remote metering measuring apparatuses in parallel.

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