The present disclosure relates to the field of energy meter. More
particularly the present disclosure relates to a system and method for detecting magnetic tempering in an energy meter.
BACKGROUND
[0002] Background description includes information that may be useful in
understanding the present invention. It is not an admission that any of the
information provided herein is prior art or relevant to the presently claimed
invention, or that any publication specifically or implicitly referenced is prior art.
[0003] Tampering of Energy meters is a common practice to reduce
electricity bill. One such tamper is magnetic tamper. The energy meters use current transformers to measure current. And they are unable to measure current when they come under influence of magnetic field for example: if 10A is flowing through current transformer then when they come under influence of magnetic field their output will be like 1A current. By this example it is clearly understood that one can save 90 percent in his electricity bill by carrying out this tamper. In order to address this issue and protect electricity distribution companies we use magnetic sensors in energy meters with this we sense the presence of magnetic field and measure as per maximum load allocated to a person irrespective of his consumption. However, the magnetic sensor adds to cost of the energy meter which is undesirable.
[0004] There is, therefore, a need of an improved system and method for
detecting magnetic tempering of the energy meters.
OBJECTS OF THE PRESENT DISCLOSURE
[0005] Some of the objects of the present disclosure, which at least one
embodiment herein satisfies are as listed herein below.
[0006] It is an object of the present disclosure to provide a system for
identifying tempering of an energy meter, which does not require additional magnetic sensor.

[0007] It is an object of the present disclosure to provide a system for
identifying tempering of an energy meter, which is cost effective.
[0008] It is an object of the present disclosure to provide a system for
identifying tempering of an energy meter, which is simple and easy to use.
[0009] It is an object of the present disclosure to provide a system for
identifying tempering of an energy meter, which requires less maintenance cost.
SUMMARY
[0010] The present disclosure relates to the field of energy meter. More
particularly the present disclosure relates to a system and method for detecting magnetic tempering in an energy meter.
[0011] An aspect of the present disclosure pertains to a system for
identifying tempering of an energy meter. The system includes a control circuit having a waveshape monitor device operatively configured with an output of a current transformer of the energy meter, to monitor waveshape of an output signal of the current transformer. A processor operatively configured with the waveshape monitoring device, and configured to execute a set of instructions, stored in a memory, which, on execution, causes the system to receive, from the waveshape monitor device, a first set of signals pertaining to the waveshape of the output of the current transformer. Divide, based on the first set of signals, the output signal of the current transformer into one or more first samples and correspondingly generate a second of signals. Compare, based on the second set of signals, the one or more first samples of the output signal of the current transformer with pre-stored one or more second samples of a standard current transformer output signal with no magnetic field influence.
[0012] In an aspect, the waveshape monitoring device may comprise an
ADC.
[0013] In an aspect, the system may generate a third set of signals when
the one or more first samples are different in shape from the pre-stored one or more second samples.

[0014] In an aspect, the third set of signals may actuate one or more
indication devices, operatively configured with the processor, that signifies that
the energy meter is tempered using a magnetic field effect on the energy meter.
[0015] A method for identifying tempering of an energy meter. The
method includes receiving, by a processor, a first set of signals pertaining to the waveshape of the output of the current transformer from a waveshape monitor device configured with an output of a current transformer of the energy meter. Dividing, based on the first set of signals, the output signal of the current transformer into one or more first samples and correspondingly generate a second of signals. Comparing, based on the second set of signals, the one or more first samples of the output signal of the current transformer with pre-stored one or more second samples of a standard current transformer output signal with no magnetic field influence.
[0016] Various objects, features, aspects and advantages of the inventive
subject matter will become more apparent from the following detailed description of preferred embodiments, along with the accompanying drawing figures in which like numerals represent like components.
BRIEF DESCRIPTION OF DRAWINGS
[0017] The accompanying drawings are included to provide a further
understanding of the present disclosure, and are incorporated in and constitute a part of this specification. The drawings illustrate exemplary embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure. The diagrams are for illustration only, which thus is not a limitation of the present disclosure.
[0018] In the figures, similar components and/or features may have the
same reference label. Further, various components of the same type may be distinguished by following the reference label with a second label that distinguishes among the similar components. If only the first reference label is used in the specification, the description is applicable to any one of the similar

components having the same first reference label irrespective of the second
reference label.
[0019] FIG. 1 illustrates exemplary representation of a block diagram of a
system for identifying tempering of an energy meter, in accordance with an
embodiment of the present disclosure.
[0020] FIG. 2 A-B illustrates exemplary representation of waveshape of an
output signal of current transformer of the energy meter, in accordance with an
embodiment of the present disclosure.
[0021] FIG. 3 illustrates exemplary method for identifying tempering of
an energy meter, in accordance with an embodiment of the present disclosure.
DETAILED DESCRIPTION
[0022] The following is a detailed description of embodiments of the
disclosure depicted in the accompanying drawings. The embodiments are in such detail as to clearly communicate the disclosure. However, the amount of detail offered is not intended to limit the anticipated variations of embodiments; on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the scope of the present disclosure as defined by the appended claims.
[0023] In the following description, numerous specific details are set forth
in order to provide a thorough understanding of embodiments of the present
invention. It will be apparent to one skilled in the art that embodiments of the
present invention may be practiced without some of these specific details.
[0024] The present disclosure relates to the field of energy meter. More
particularly the present disclosure relates to a system and method for detecting magnetic tempering in an energy meter.
[0025] The present disclosure elaborates upon a system for identifying
tempering of an energy meter. The system includes a control circuit having waveshape monitor device operatively configured with an output of a current transformer of the energy meter, to monitor waveshape of an output signal of the current transformer. A processor operatively configured with the waveshape

monitoring device, and configured to execute a set of instructions, stored in a memory, which, on execution, causes the system to receive, from the waveshape monitor device, a first set of signals pertaining to the waveshape of the output of the current transformer. Divide, based on the first set of signals, the output signal of the current transformer into one or more first samples and correspondingly generate a second of signals. Compare, based on the second set of signals, the one or more first samples of the output signal of the current transformer with pre-stored one or more second samples of a standard current transformer output signal with no magnetic field influence.
[0026] In an embodiment, the waveshape monitoring device can comprise
an ADC that can also be implemented by a processor.
[0027] In an embodiment, the system can generate a third set of signals
when the one or more first samples are different in shape from the pre-stored one or more second samples.
[0028] In an embodiment, the third set of signals can actuate one or more
indication devices, operatively configured with the processor, that signifies that
the energy meter is tempered using a magnetic field effect on the energy meter.
[0029] A method for identifying tempering of an energy meter. The
method includes receiving, by a processor, a first set of signals pertaining to the waveshape of the output of the current transformer from a waveshape monitor device configured with an output of a current transformer of the energy meter. Dividing, based on the first set of signals, the output signal of the current transformer into one or more first samples and correspondingly generate a second of signals. Comparing, based on the second set of signals, the one or more first samples of the output signal of the current transformer with pre-stored one or more second samples of a standard current transformer output signal with no magnetic field influence.
[0030] FIG. 1 illustrates exemplary representation of a block diagram of a
system for identifying tempering of an energy meter, in accordance with an embodiment of the present disclosure.

[0031] FIG. 2A-B illustrates exemplary representation of waveshape of an
output signal of current transformer of the energy meter, in accordance with an embodiment of the present disclosure.
[0032] As illustrated, a system 100 for identifying tempering of an energy
meter 102 can includes a control circuitry having a waveshape monitor device 104 that can be operatively configured with an output of a current transformer 102-1 of the energy meter 102. The waveshape monitoring device can include an ADC that can also be implemented by a processor, and can be configured to monitor waveshape of an output signal of the current transformer 102-1. A processing unit 106, having a processor, can be operatively configured with the waveshape monitoring device 104.
[0033] In an embodiment, the system 100 can be configured to receive a
first set of signals pertaining to the waveshape of the output of the current transformer from the waveshape monitor device 104. The system 100 can be configured to divide the output signal of the current transformer based on the first set of signals into one or more first samples and can correspondingly generate a second of signals. Further, the system 100 can be configured to compare, based on the second set of signals, the one or more first samples of the output signal of the current transformer with pre-stored one or more second samples, in a database 108, of a standard current transformer output signal with no magnetic field influence.
[0034] In an embodiment, the system 100 can be configured to generate a
third set of signals when the one or more first samples are different in shape from the pre-stored one or more second samples. The third set of signals can be configured to actuate one or more indication devices 110, operatively configured with the processor, that signifies that the energy meter is tempered using a magnetic field effect on the energy meter. One or more indicating devices can include an audio device such as alarm, and a video indication device such as LED. Alternatively, the system can be configured to log an entry of meter tempering for the energy meter in a database.

[0035] In an embodiment, the system 100 can be operatively configured
with one or more mobile computing devices that can be associated with one or more users. The one or more users can include peopled from a relevant authority or entity. The one or more users can monitor remotely the status of the energy meter through the one or more mobile computing device. The one or more mobile computing devices can include but not limited to a laptop, a smartphone, a tablet, and a PDA. The system 100 can be operatively configured with the one or more mobile computing devices through a wireless network. FIG. 2A illustrates a waveshape of the output signals when the energy meter is not under influence of magnetic field and FIG. 2B illustrates a waveshape of the output signals when the energy meter is under influence of magnetic field. It can be seen that the wave shape of the output signal of the current transformed changes when the energy meter is under influence of the magnetic field.
[0036] FIG. 3 illustrates exemplary method for identifying tempering of
an energy meter, in accordance with an embodiment of the present disclosure.
[0037] As illustrated, at step 302, a method 300 for identifying tempering
of an energy meter can include receiving, by a processor, a first set of signals pertaining to the waveshape of the output of the current transformer from a waveshape monitor device configured with an output of a current transformer of the energy meter.
[0038] At step 304, the method 300 can include dividing, based on the
first set of signals, the output signal of the current transformer into one or more
first samples and correspondingly generate a second of signals.
[0039] At step 306, the method 300 can include comparing, based on the
second set of signals, the one or more first samples of the output signal of the
current transformer with pre-stored one or more second samples of a standard
current transformer output signal with no magnetic field influence.
[0040] Moreover, in interpreting the specification, all terms should be
interpreted in the broadest possible manner consistent with the context. In particular, the terms "comprises" and "comprising" should be interpreted as referring to elements, components, or steps in a non-exclusive manner, indicating

that the referenced elements, components, or steps may be present, or utilized, or combined with other elements, components, or steps that are not expressly referenced. Where the specification claims refer to at least one of something selected from the group consisting of A, B, C ....and N, the text should be interpreted as requiring only one element from the group, not A plus N, or B plus N, etc.
[0041] While the foregoing describes various embodiments of the
invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof. The scope of the invention is determined by the claims that follow. The invention is not limited to the described embodiments, versions or examples, which are included to enable a person having ordinary skill in the art to make and use the invention when combined with information and knowledge available to the person having ordinary skill in the art.
ADVANTAGES OF THE INVENTION
[0042] The proposed invention provides a system for identifying
tempering of an energy meter, which does not require additional magnetic sensor.
[0043] The proposed invention provides a system for identifying
tempering of an energy meter, which is cost effective.
[0044] The proposed invention provides a system for identifying
tempering of an energy meter, which is simple and easy to use.
[0045] The proposed invention provides a system for identifying
tempering of an energy meter, which requires less maintenance cost.

We Claim:

1. A system for identifying magnetic tempering of an energy meter, the
system comprises:
a control circuit comprising;
a waveshape monitor device operatively configured with an output of a current transformer of the energy meter, to monitor waveshape of an output signal of the current transformer;
a processor operatively configured with the waveshape monitoring device, and configured to execute a set of instructions, stored in a memory, which, on execution, causes the system to:
receive, from the waveshape monitor device, a first
set of signals pertaining to the waveshape of the output of
the current transformer,
divide, based on the first set of signals, the output
signal of the current transformer into one or more first
samples and correspondingly generate a second of signals,
and
compare, based on the second set of signals, the one
or more first samples of the output signal of the current
transformer with pre-stored one or more second samples of
a standard current transformer output signal with no
magnetic field influence.
2. The system as claimed in claim 1, wherein the waveshape monitoring device comprises an analog to digital converter (ADC)
3. The system as claimed in claim 1, wherein the system generates a third set of signals when the one or more first samples are different in shape from the pre-stored one or more second samples.
4. The system as claimed in claim 3, wherein the third set of signals actuate one or more indication devices, operatively configured with the processor,

that signifies that the energy meter is tempered using a magnetic field effect on the energy meter. 5. A method for identifying magnetic tempering of an energy meter, the method comprises:
receiving, by a processor, a first set of signals pertaining to the waveshape of the output of the current transformer from a waveshape monitor device configured with an output of a current transformer of the energy meter;
dividing, based on the first set of signals, the output signal of the current transformer into one or more first samples and correspondingly generate a second of signals, and
comparing, based on the second set of signals, the one or more first samples of the output signal of the current transformer with pre-stored one or more second samples of a standard current transformer output signal with no magnetic field influence.