CN109596872B - Portable anti-electricity-stealing detection device - Google Patents
Portable anti-electricity-stealing detection device Download PDFInfo
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- CN109596872B CN109596872B CN201910125882.7A CN201910125882A CN109596872B CN 109596872 B CN109596872 B CN 109596872B CN 201910125882 A CN201910125882 A CN 201910125882A CN 109596872 B CN109596872 B CN 109596872B
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- 230000005611 electricity Effects 0.000 claims abstract description 174
- 238000012545 processing Methods 0.000 claims abstract description 30
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- 230000007935 neutral effect Effects 0.000 claims description 10
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- 230000005612 types of electricity Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
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- 238000009420 retrofitting Methods 0.000 description 2
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- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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Abstract
The present disclosure relates to a portable anti-electricity-theft detection device. The device comprises: a current detection part connected to the device main body, the first detection terminal being detachably mounted to the target line for performing current detection on the target line to obtain current detection data; a data processing unit, which is arranged in the device main body and is connected with the plurality of current detection units, and is used for acquiring and determining electricity utilization data according to the current detection data detected by the plurality of current detection units; the display part comprises a display screen arranged on the device main body, is connected with the device main body, and is used for acquiring electricity data and controlling the display screen to display the electricity data. The device provided by the embodiment of the disclosure is convenient to carry, and can quickly and accurately detect the electricity consumption data of the target line on site on the premise of not affecting distribution and transportation, so that a monitoring person can determine whether electricity stealing conditions exist or not and determine the electricity stealing type according to the electricity consumption data and the electricity consumption data of the ammeter displayed by the user ammeter.
Description
Technical Field
The disclosure relates to the technical field of electricity larceny detection, in particular to a portable anti-electricity larceny detection device.
Background
The problem of electricity theft not only affects the normal supply order of the power enterprises, but also seriously affects the economic construction and development and the social stability. Over time, electricity theft technology has also become more intelligent, electricity theft is more concealed than before, and it has become more difficult for electricity use monitoring personnel to determine whether electricity theft is present in an electrical enterprise.
In the related art, the occurrence of electricity theft is placed in the following three ways. First, the management of the metering device is enhanced. The special metering box is adopted, the anti-prying lead sealing is adopted, the electric energy meter with the anti-electricity-stealing function is selected, the conductor of the metering device at the low voltage end of the transformer is sealed, the special metering cabinet is arranged, the metering screen and the distribution transformer with the anti-electricity-stealing function are arranged, the multiplying power of the current transformer with the reasonable metering device is selected, and the like. Second, a power consumption information acquisition system is built. And data such as electric quantity, voltage, current, power and the like are collected at regular time through a remote meter reading mode, a load control terminal mode, a network meter mode and the like, and the data are analyzed to judge whether the power consumption of a special-purpose user is normal. Thirdly, the running condition of the user metering equipment is monitored by using the electric quantity monitor. The wireless current transducer is arranged at three positions of the power transformer, namely a high-voltage power line input port, a high-voltage power line output port and a user-side outlet port, and the temperature of a current signal and a line node is amplified and monitored through a wireless current transducer generating source. And the signal is transmitted to the GSM/GPRS remote monitoring terminal through the small wireless current transmitter, the remote monitoring terminal processes the received wireless signal, the wireless signals of the high and low ports of the power transformer are quantized respectively during processing, the comparison is carried out, and then the apparent power of the primary side and the secondary side of the current power transformer is calculated and drawn, so that the purpose of monitoring electricity larceny is achieved.
However, by monitoring the electricity larceny prevention technology, more monitoring blind areas still exist only for the known specific single or partial electricity larceny method. Meanwhile, because the specific anti-electricity-theft measures are all fixed monitoring, a new electricity-theft measure can be developed aiming at the fixed anti-electricity-theft measures, and then electricity-theft and anti-electricity-theft circulation are involved, so that a large amount of manpower and material resources are wasted. How to provide a portable anti-electricity-stealing detection device is a technical problem to be solved.
Disclosure of Invention
Technical problem
In view of the above, the technical problem to be solved by the present disclosure is how to provide a portable anti-electricity-stealing detection device.
Solution scheme
To solve the above technical problem, according to an embodiment of the present disclosure, there is provided a portable anti-electricity-theft detection device including: a device main body, a plurality of current detecting parts, a data processing part and a display part,
The current detection component comprises a first detection end and a first connection end, the first connection end is connected to the device main body, the first detection end is detachably mounted on a target line, the current detection component is used for detecting current of the target line to obtain current detection data, the target line comprises at least one of a connecting line between a bus in a power grid and a user electricity meter at a user side and a connecting line between the user electricity meter and a user electricity line, and the connecting line comprises at least one of an A phase line, a B phase line, a C phase line and a neutral line;
the data processing component is arranged in the device main body and connected with the plurality of current detection components, and is used for acquiring current detection data detected by the plurality of current detection components and determining electricity consumption data according to the current detection data, wherein the electricity consumption data comprises current data of the target line;
The display part is connected with the device main body and comprises a display screen arranged on the device main body, and is used for acquiring the electricity consumption data and controlling the display screen to display the electricity consumption data so as to enable a inspector to determine whether electricity stealing conditions exist according to the electricity consumption data and the electricity consumption data of the ammeter displayed by the user ammeter and determine the electricity stealing type according to the electricity consumption data.
For the above apparatus, in one possible implementation manner, the apparatus further includes: a plurality of voltage detecting means for detecting the voltage of the power supply,
The voltage detection component comprises a second detection end and a second connection end, the second connection end is connected to the device main body, the second detection end is detachably connected to the target line, voltage detection is carried out on the target line, and voltage detection data of the target line are obtained;
The data processing component is connected with the voltage detection components and is also used for acquiring the voltage detection data detected by the voltage detection components and determining electricity utilization data according to the voltage detection data and the current detection data,
Wherein the electricity consumption data further comprises at least one of the following: and the voltage data, the power factor, the power data and the electric energy data of the target line.
For the above device, in one possible implementation, the current detection means comprises a rogowski coil.
In one possible implementation manner of the above device, the current detecting component is connected to the device main body in a pluggable manner through a first connection end, and the voltage detecting component is connected to the device main body in a pluggable manner through a second connection end.
For the above device, in one possible implementation manner, the display unit is further configured to control the display screen to sequentially display a plurality of electricity data identifiers from left to right in a bottom area, and highlight a selected first electricity data identifier in the plurality of electricity data identifiers, and control the display screen to sequentially display a plurality of electricity data corresponding to the first electricity data identifier from top to bottom in a remaining area, and highlight the selected first electricity data in the plurality of electricity data, where the remaining area is an area other than the bottom area in a display area of the display screen;
wherein the apparatus further comprises:
The left adjustment key is arranged on the device main body and is used for switching the currently highlighted power utilization data identifier from the first power utilization data identifier to a second power utilization data identifier adjacent to the first power utilization data identifier and positioned at the left side of the first power utilization data identifier according to the detected trigger operation;
The upward adjustment key is arranged on the device main body and is used for switching the currently highlighted power utilization data from the first power utilization data to second power utilization data adjacent to the first power utilization data and positioned above the first power utilization data according to the detected trigger operation;
The downward adjusting key is arranged on the device main body and is used for switching the currently highlighted power utilization data from the first power utilization data to third power utilization data adjacent to the first power utilization data and located below the first power utilization data according to the detected triggering operation.
For the above apparatus, in one possible implementation manner, the apparatus further includes:
The data refreshing key is arranged on the device main body and used for controlling the display part to display the latest determined electricity utilization data on the display screen according to the detected triggering operation.
For the above apparatus, in one possible implementation manner, the apparatus further includes:
and the switch button is arranged on the device main body and is used for controlling the device to start or end working according to the detected switch operation.
In one possible implementation of the above device, the switch button is further configured to perform a calibration process on the device according to the detected calibration operation,
Wherein the calibration process performed on the device includes at least one of a current calibration process, a voltage calibration process, and a power factor calibration process.
In one possible implementation manner for the above device, the switch key is further configured to perform a zero clearing process on the device according to the detected zero clearing operation,
The zero clearing processing performed on the device comprises electric energy zero clearing processing.
For the above device, in one possible implementation, the electricity theft type includes a wire electricity theft or meter retrofit electricity theft,
Wherein, the connecting wire steals electricity includes at least one mode of following: any one line of the A phase line, the B phase line and the C phase line is used for stealing electricity, and the three lines of the A phase line, the B phase line and the C phase line are used for stealing electricity together.
Advantageous effects
The portable anti-electricity-theft detection device provided by the embodiment of the disclosure can be convenient for a inspector to carry, and can quickly and accurately detect the electricity consumption data of the target line on site on the premise of not affecting distribution and transportation, so that the inspector can determine whether an electricity-theft condition exists according to the electricity consumption data and the electricity consumption data of the ammeter displayed by the user ammeter, and determine the electricity-theft type according to the electricity consumption data.
Other features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features and aspects of the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 illustrates a schematic structure of a portable anti-electricity-theft detection device according to an embodiment of the present disclosure.
Fig. 2 illustrates a schematic structure of a portable anti-electricity-theft detection device according to an embodiment of the present disclosure.
Fig. 3 a-3 c are schematic diagrams illustrating application scenarios of a portable anti-electricity-theft detection device according to an embodiment of the present disclosure.
Detailed Description
Various exemplary embodiments, features and aspects of the disclosure will be described in detail below with reference to the drawings. In the drawings, like reference numbers indicate identical or functionally similar elements. Although various aspects of the embodiments are illustrated in the accompanying drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
The word "exemplary" is used herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.
In addition, numerous specific details are set forth in the following detailed description in order to provide a better understanding of the present disclosure. It will be understood by those skilled in the art that the present disclosure may be practiced without some of these specific details. In some instances, methods, means, elements, and circuits well known to those skilled in the art have not been described in detail in order not to obscure the present disclosure.
Fig. 1 illustrates a schematic structure of a portable anti-electricity-theft detection device according to an embodiment of the present disclosure. As shown in fig. 1, the apparatus includes: the device includes a device main body 10, a plurality of current detecting sections 20, a data processing section 30, and a display section 40.
The current detecting section 20 includes a first detecting terminal 201 and a first connecting terminal 202, the first connecting terminal 202 being connected to the apparatus main body 10, the first detecting terminal 201 being detachably mounted to a target line, the current detecting section 20 being configured to perform current detection on the target line to obtain current detection data. The target line may include at least one of a connection line between a bus bar in the power grid and a utility meter on the utility side, a connection line between the utility meter and a utility line on the utility side. The connection line may include at least one of an a-phase line, a B-phase line, a C-phase line, and a neutral line.
The three-phase alternating current is a transmission form of electric energy, and is simply called three-phase electricity. In a power distribution network, a three-phase four-wire system is generally adopted as a power transmission line, wherein three lines respectively represent A, B, C three phases, are not split, and the other line is a neutral line N (also can be called a zero line). The A phase line, the B phase line, the C phase line and the neutral line are four lines in a three-phase four-wire system.
The data processing part 30 is disposed inside the apparatus body 10 and connected to the plurality of current detecting parts 20, and the data processing part 30 is configured to acquire current detection data detected by the plurality of current detecting parts 20 and determine electricity consumption data according to the current detection data, and the electricity consumption data may include current data of a target line.
The display part 40 is connected with the device body 10, and may include a display 401 provided on the device body 10, the display part 40 being configured to obtain electricity consumption data and control the display 401 to display the electricity consumption data, so that a inspector can determine whether there is an electricity theft condition according to the electricity consumption data and electricity consumption data of an electricity meter displayed by the electricity meter, and determine an electricity theft type according to the electricity consumption data. The monitoring personnel can determine the theoretical difference value between the electricity consumption data and the electricity consumption data of the electric meter according to the electricity consumption conditions of the electric meter, the connecting wire and the like, and when the detection difference value between the electricity consumption data and the electricity consumption data of the electric meter, which are determined by on-site actual detection, is larger than the theoretical difference value, the electricity stealing condition can be determined, and the electricity stealing condition of a user is likely to exist. And may further determine the type of electricity theft based on the electricity usage data.
In order to facilitate the representation of the position of each component in the portable anti-theft detection device, the portion of the portable anti-theft detection device that is visible to the naked eye is represented by a solid line in fig. 1, and the portion of the portable anti-theft detection device that is disposed inside the device and is not visible to the naked eye is represented by a broken line.
In this embodiment, the data processing unit may be any unit capable of performing communication, data storage, data calculation, and digital-to-analog conversion, such as a single chip microcomputer, CPU, MPU, FPGA, etc., and the data processing unit may be implemented by a dedicated hardware circuit, or may be implemented by a general purpose processing unit in combination with executable logic instructions to execute a working process of the data processing unit, where the executable logic instructions may be implemented based on prior art means. The present disclosure is not limited to a particular implementation of the data processing component.
In this embodiment, the data processing unit may be some chips with the above data processing capability. For example, a multi-phase multi-functional power meter chip (ADE 7880) integrating harmonic monitoring.
Fig. 2 illustrates a schematic structure of a portable anti-electricity-theft detection device according to an embodiment of the present disclosure. In one possible implementation, as shown in fig. 2, the apparatus may further include: a plurality of voltage detecting parts 50.
The voltage detecting part 50 may include a second detecting terminal 501 and a second connecting terminal 502, the second connecting terminal 502 being connected to the apparatus body 10, the second detecting terminal 501 being detachably connected to the target line, performing voltage detection on the target line, and acquiring voltage detection data of the target line.
The data processing unit 30 is connected to the plurality of voltage detecting units 50, and is further configured to acquire voltage detection data detected by the plurality of voltage detecting units 50, and determine electricity consumption data based on the plurality of voltage detection data and the plurality of current detection data. Wherein the electricity usage data may further include at least one of: voltage data, power factor, power data, and power data of the target line.
The current data may include data related to current, such as a current value, a current harmonic value, a percentage, and the like of the target line, and the current value may include a current effective value, a current average value, a current peak value, and the like. The voltage data may include voltage-related data such as voltage values, voltage harmonic values, percentages, etc. of the target line, and the voltage values may include voltage effective values, voltage average values, voltage peak values, etc. The power data may include power related data such as total active power, total apparent power, total reactive power, total power efficiency, active power of the fundamental wave, reactive power of the fundamental wave, power efficiency of the fundamental wave, and the like. The power factor may be the cosine of the phase difference (Φ) between the voltage and the current in the ac circuit, and may be the ratio of the active power to the apparent power. The power data may include active power, reactive power, apparent power for each target line, and total active power, reactive power, apparent power for all target lines, etc. may represent relevant data for the power consumed by the target line during the detection time.
When the detected target line is plural, the current data further includes an angle between currents of the target line. The voltage data may also include line voltages between the target lines, angles between the line voltages. For example, if the target line is an a-phase line, a B-phase line, a C-phase line, the current data may further include an angle between currents of the a-phase line and the B-phase line, an angle between currents of the B-phase line and the C-phase line, and an angle between currents of the a-phase line and the C-phase line. The voltage data also includes a line voltage between the a-phase line and the B-phase line and an angle between the line voltages, a line voltage between the B-phase line and the C-phase line and an angle between the line voltages, and a line voltage between the a-phase line and the C-phase line and an angle between the line voltages.
It should be appreciated that the electricity usage data may also include other data that can characterize whether or not an electricity theft condition exists and the type of electricity theft, as may be set by those skilled in the art according to actual needs, and this disclosure is not limited in this regard.
In one possible implementation, the current detection component may include a rogowski coil.
The rogowski coil is also called a current measuring coil and a differential current sensor, and is a ring-shaped coil uniformly wound on a non-ferromagnetic material. The output signal is the differential of the current over time. The input current can be truly restored by a circuit that integrates the output voltage signal. The Rogowski coil is connected in a plug-in mode, so that on-site connection is facilitated, a tested main loop does not need to be disassembled during connection, and the integrated transmitter is small in size, light in weight and good in linearity. The Rogowski coil is used as a current detection component, so that the field installation of the device is convenient for monitoring personnel, the distribution and the transmission are not affected, and the accuracy of a detection result can be ensured.
It should be understood that the current detecting component may be other components that are detachable and capable of detecting current, and those skilled in the art may set the current detecting component according to actual needs, which is not limited in this disclosure.
In one possible implementation, as shown in fig. 2, the current detecting part 20 may be removably connected to the device body 10 through a first connection terminal 201, and the voltage detecting part 50 may be removably connected to the device body 10 through a second connection terminal 502.
Like this, portable device, and adopt detachable mode to be connected current detection part and voltage detection part to the device main part, can only connect current detection part and voltage detection part that need use in the device main part at the in-process of detecting target line, other parts are removable, provide convenience for monitoring personnel's testing process.
In one possible implementation, as shown in fig. 2, the display unit 40 is further configured to control the display screen to sequentially display the plurality of electricity data identifiers from left to right in a bottom area and highlight the selected first electricity data identifier in the plurality of electricity data identifiers, and control the display screen to sequentially display the plurality of electricity data corresponding to the first electricity data identifier from top to bottom in a remaining area, and highlight the selected first electricity data in the plurality of electricity data, where the remaining area may be an area other than the bottom area in the display area of the display screen.
The device may further comprise a left adjustment key 601, an up adjustment key 602 and a down adjustment key 603, among others.
The left adjustment key 601 is disposed on the device main body 10, and the left adjustment key 601 is configured to switch the currently highlighted power consumption data identifier from the first power consumption data identifier to a second power consumption data identifier adjacent to the first power consumption data identifier and located on the left side of the first power consumption data identifier according to the detected trigger operation.
The up adjustment key 602 is disposed on the device main body 10, and the up adjustment key 602 is configured to switch the currently highlighted power consumption data from the first power consumption data to second power consumption data adjacent to the first power consumption data and located above the first power consumption data according to the detected trigger operation.
A down adjustment key 603 provided on the apparatus main body 10, the down adjustment key 603 being configured to switch the currently highlighted electricity data from the first electricity data to third electricity data adjacent to the first electricity data and located below the first electricity data according to the detected trigger operation.
In this implementation, the identification of the available electricity data may be a text, symbol, graphic, etc. that is capable of characterizing different types of electricity data, which is not limited by the present disclosure. The electricity consumption data that may be displayed in the remaining area may include electricity consumption data corresponding to an a-phase line, a B-phase line, a C-phase line, and a neutral line. The corresponding units of electricity data may also be displayed. The plurality of electricity data identifiers can be displayed in the top, left side, right side and other areas of the display screen, and the plurality of electricity data corresponding to the first electricity data identifier can be displayed in the remaining areas.
In this implementation, the first electrical data identifier and the first electrical data may be displayed synaptically in a manner that highlights, changes the colors of the electrical data identifier and the first electrical data, the background color, and the like. A background color engine synapse display that alters the power usage data identification and the first power usage data is employed as in fig. 2. The purpose of highlighting is that the inspector can determine which kind of data is currently displayed when the electricity data is currently displayed and the currently viewed electricity data according to the first electricity data identifier of highlighting, and the highlighting mode can be set by the person skilled in the art according to actual needs, which is not limited by the present disclosure.
In this implementation, the user may adjust the display of electricity data in the display by operating the left adjustment key, the up adjustment key, the down adjustment key, and may view all of the detected electricity data in the limited-area display. The volume of the device is reduced and the monitoring personnel can conveniently carry the device while ensuring that the monitoring personnel can check all electricity consumption data.
In one possible implementation, as shown in FIG. 2, the apparatus may also include a data refresh key 70. A data refresh key 70 provided on the apparatus main body 10 for controlling the display section 40 to display the latest determined electricity consumption data on the display screen 401 in accordance with the detected trigger operation.
In the implementation mode, the device can refresh the electricity consumption data displayed in the display screen through triggering operation of the data refreshing key by the inspector. The device may also automatically brush the electricity data displayed in the display screen, which is not limited by the present disclosure.
In this implementation, to ensure the accuracy of detection, the sampling interval time of the current detection part and the voltage detection part may be 400ms, and the interval time of the data processing part performing data processing may be 500ms. The sampling time interval and the processing time interval may be set by those skilled in the art according to actual needs, and the present disclosure is not limited thereto.
In one possible implementation, as shown in fig. 2, the apparatus may further include a switch key 80. A switch button 80 provided on the apparatus body 10 for controlling the apparatus to start or end the operation according to the detected switch operation.
In this implementation, when the device is in the off state, if a switch operation for the switch key is detected, the device may be turned on, put into an operating state, and start detection. When the device is in an operating state, if the switch operation of the switch key is detected, the device can be closed, so that the device enters the closed state and the operation is finished. The switch operation may be a single click, a long press for 3s, etc., which is not limited by the present disclosure.
In one possible implementation, as shown in FIG. 2, the switch key 80 may also be used to calibrate the device based on a detected calibration operation. The calibration process performed on the device may include at least one of a current calibration process, a voltage calibration process, and a power factor calibration process.
In this implementation, the operating state of the device may be calibrated according to the detected calibration operation to ensure the accuracy of the detection. The calibration operation may be a double click, a long press for 10s, or the like operation other than the switch operation, which is not limited by the present disclosure.
In one possible implementation, as shown in fig. 2, the switch key 80 may also be used to zero out the device based on a detected zero out operation. The zero clearing processing performed on the device comprises electric energy zero clearing processing.
In this implementation, the zero clearing operation may be performed according to the detected zero clearing operation, and the electricity data obtained by the device may be reset to zero. The clear operation may be a three-click, long press 5s, etc. operation other than a switch operation, a calibration operation, and the present disclosure is not limited thereto.
In one possible implementation, as shown in fig. 2, the electricity theft type may include a wire electricity theft or meter retrofit electricity theft. Wherein, the connecting wire electricity stealing can comprise at least one of the following modes: any one line of the A phase line, the B phase line and the C phase line is used for stealing electricity, and the three lines of the A phase line, the B phase line and the C phase line are used for stealing electricity together.
In this implementation, the electricity meter retrofitting to steal electricity may refer to retrofitting a consumer point inside the consumer electricity meter to achieve electricity theft. The electricity meter refitting and electricity stealing can comprise the step of cutting off electricity utilization detection of any one line of an A phase line, a B phase line and a C phase line of the electricity meter, or enabling detection values of the A phase line, the B phase line and the C phase line of the electricity meter to be smaller than actual use values.
In one possible implementation, as shown in fig. 2, the functions of the keys may be identified on the device body beside the left adjustment key, the up adjustment key, the down adjustment key, the switch key, so that the functions of the keys are determined by the identification 60' of the keys.
It should be noted that, although the above embodiments have been described as examples of the portable anti-electricity-theft detection device, those skilled in the art will understand that the present disclosure should not be limited thereto. In fact, the user can flexibly set each component according to personal preference and/or actual application scene, so long as the technical scheme of the disclosure is met.
The portable anti-electricity-theft detection device provided by the embodiment of the disclosure can be convenient for a inspector to carry, and can quickly and accurately detect the electricity consumption data of the target line on site, so that the inspector can determine whether an electricity-theft condition exists according to the electricity consumption data and the electricity consumption data of the electricity meter displayed by the user electricity meter, and determine the electricity-theft type according to the electricity consumption data.
Application example
An application example according to an embodiment of the present disclosure is given below in conjunction with "electric larceny detection with a portable electric larceny detection device" as an exemplary application scenario, so as to facilitate understanding of the operation principle and use manner of the portable electric larceny detection device. It will be appreciated by those skilled in the art that the following application examples are for purposes of facilitating understanding of the embodiments of the present disclosure only and should not be construed as limiting the embodiments of the present disclosure.
Fig. 3 a-3 c are schematic diagrams illustrating application scenarios of a portable anti-electricity-theft detection device according to an embodiment of the present disclosure. The inspector can detect the target line in three ways to judge whether the user steals electricity or not and the type of electricity theft. The first detection mode, the second detection mode and the third detection mode can enable the inspector to judge whether the user steals electricity or not, and the second detection mode and the third detection mode can enable the inspector to judge the electricity stealing type for electricity stealing. The portable anti-electricity-theft detection device comprises three current detection components 20 and 4 voltage detection components 50, wherein the current detection components are rogowski coils.
Detection mode one
As shown in fig. 3a, the inspector may first click (i.e., switch-operate) the switch key 80 to turn on the device, and then the inspector may press (i.e., calibrate) the switch key 80 for 10 seconds, and the device is calibrated in response to the operation. And then, the inspector can respectively install the three rogowski coils on the connecting lines between the bus and the ammeter on the user site, namely, the A phase line, the B phase line and the C phase line (namely, target lines), so that the rogowski coils can encircle the corresponding lines, and the rogowski coils can detect current. The inspector also needs to connect four voltage detecting components to the a-phase line, the B-phase line, the C-phase line and the neutral line so that the voltage detecting components can detect voltages.
Then, the inspector can determine whether the electricity stealing situation exists according to the electricity consumption data displayed in the display screen and the electricity consumption data of the ammeter which is checked in the field ammeter, and if the electricity consumption data detected by the device has larger phase difference with the electricity consumption data of the ammeter and exceeds the electricity consumption of a connecting line under the normal condition, the electricity stealing situation can be determined. For example, if the power data displayed on the display screen is far greater than the power viewed on the field ammeter, or the power data displayed on the display screen is far greater than the power value viewed on the field ammeter, it may be determined that a power theft condition occurs, and the user steals power.
Detection mode II
As shown in fig. 3b, when a inspector determines that a user steals electricity, a rogowski coil can be used to detect an a-phase line between a bus and a field ammeter and an a-phase line between the field ammeter and user electric equipment respectively, current data on two sides of the a-phase line field ammeter are obtained, that is, current data I1 of the a-phase line between the bus and the field ammeter and current data I2 of the a-phase line between the field ammeter and the user electric equipment are obtained, if a difference value between the I1 and the I2 is far greater than current consumption of the field ammeter and the a-phase line in a conventional state, it can be determined that the user steals electricity through the a-phase line. Similarly, the inspector can also detect the B-phase line and the C-phase line and judge whether the user steals electricity with the B-phase line and the C-phase line.
Detection mode III
As shown in fig. 3C, when the inspector determines that the user steals electricity, the inspector can also use one rogowski coil to detect current of four lines including an a phase line, a B phase line, a C phase line and a neutral line (or called zero line) between the bus and the ammeter on the user site, and/or use one rogowski coil to detect current of the a phase line, the B phase line, the C phase line and the neutral line between the ammeter on the site and the consumer, if the detected current data is not zero, if the current value is larger, the inspector can determine that the user steals electricity by only switching current into the a phase line, the B phase line and the C phase line (i.e. not switching current into the neutral line).
Thus, the inspector can quickly and accurately detect the electricity consumption data of the target line on site by utilizing the portable anti-electricity-theft detection device, and determine whether the electricity theft condition exists or not according to the electricity consumption data and the electricity consumption data of the ammeter displayed by the site ammeter of the user, and determine the electricity theft type according to the electricity consumption data.
The foregoing is merely specific embodiments of the disclosure, but the protection scope of the disclosure is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the disclosure, and it is intended to cover the scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.
Claims (9)
1. A portable anti-electricity-theft detection device, the device comprising: a device main body, a plurality of current detecting parts, a data processing part and a display part,
The current detection component comprises a first detection end and a first connection end, wherein the first connection end is connected to the device main body in a pluggable manner, the first detection end is detachably arranged on a target line, the current detection component is used for detecting current of the target line to obtain current detection data, the target line comprises at least one of a connecting line between a bus in a power grid and a user electricity meter at a user side and a connecting line between the user electricity meter and a user electricity line, and the connecting line comprises at least one of an A phase line, a B phase line, a C phase line and a neutral line;
the data processing component is arranged in the device main body and connected with the plurality of current detection components, and is used for acquiring current detection data detected by the plurality of current detection components and determining electricity consumption data according to the current detection data, wherein the electricity consumption data comprises current data of the target line;
The display part is connected with the device main body and comprises a display screen arranged on the device main body, and is used for acquiring the electricity consumption data and controlling the display screen to display the electricity consumption data so as to enable a inspector to determine whether electricity stealing exists according to the electricity consumption data and the electricity consumption data of the ammeter displayed by the user ammeter and determine the electricity stealing type according to the electricity consumption data;
wherein the electricity stealing type comprises connecting wire electricity stealing or ammeter refitting electricity stealing,
Wherein, the connecting wire steals electricity includes at least one mode of following: any one line of the A phase line, the B phase line and the C phase line is used for stealing electricity, and the three lines of the A phase line, the B phase line and the C phase line are used for stealing electricity together.
2. The apparatus of claim 1, wherein the apparatus further comprises: a plurality of voltage detecting means for detecting the voltage of the power supply,
The voltage detection component comprises a second detection end and a second connection end, the second connection end is connected to the device main body, the second detection end is detachably connected to the target line, voltage detection is carried out on the target line, and voltage detection data of the target line are obtained;
The data processing component is connected with the voltage detection components and is also used for acquiring the voltage detection data detected by the voltage detection components and determining electricity utilization data according to the voltage detection data and the current detection data,
Wherein the electricity consumption data further comprises at least one of the following: and the voltage data, the power factor, the power data and the electric energy data of the target line.
3. The apparatus of claim 1, wherein the current sensing means comprises a rogowski coil.
4. The device of claim 2, wherein the voltage detection member is removably connected to the device body via a second connection.
5. The apparatus of claim 2, wherein the device comprises a plurality of sensors,
The display component is further used for controlling the display screen to sequentially display a plurality of electricity utilization data identifiers from left to right in a bottom area and highlight a first selected electricity utilization data identifier in the plurality of electricity utilization data identifiers, controlling the display screen to sequentially display a plurality of pieces of electricity utilization data corresponding to the first electricity utilization data identifier from top to bottom in a residual area, and highlighting the first selected electricity utilization data in the plurality of pieces of electricity utilization data, wherein the residual area is an area except the bottom area in the display area of the display screen;
wherein the apparatus further comprises:
The left adjustment key is arranged on the device main body and is used for switching the currently highlighted power utilization data identifier from the first power utilization data identifier to a second power utilization data identifier adjacent to the first power utilization data identifier and positioned at the left side of the first power utilization data identifier according to the detected trigger operation;
The upward adjustment key is arranged on the device main body and is used for switching the currently highlighted power utilization data from the first power utilization data to second power utilization data adjacent to the first power utilization data and positioned above the first power utilization data according to the detected trigger operation;
The downward adjusting key is arranged on the device main body and is used for switching the currently highlighted power utilization data from the first power utilization data to third power utilization data adjacent to the first power utilization data and located below the first power utilization data according to the detected triggering operation.
6. The apparatus of claim 1, wherein the apparatus further comprises:
The data refreshing key is arranged on the device main body and used for controlling the display part to display the latest determined electricity utilization data on the display screen according to the detected triggering operation.
7. The apparatus of claim 1, wherein the apparatus further comprises:
and the switch button is arranged on the device main body and is used for controlling the device to start or end working according to the detected switch operation.
8. The apparatus of claim 7, wherein the device comprises a plurality of sensors,
The switch key is also used for carrying out calibration processing on the device according to the detected calibration operation,
Wherein the calibration process performed on the device includes at least one of a current calibration process, a voltage calibration process, and a power factor calibration process.
9. The apparatus of claim 7, wherein the device comprises a plurality of sensors,
The switch key is also used for carrying out zero clearing processing on the device according to the detected zero clearing operation,
The zero clearing processing performed on the device comprises electric energy zero clearing processing.
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| CN110988423B (en) * | 2019-12-27 | 2021-09-21 | 宁波三星智能电气有限公司 | Electricity stealing detection method and device |
| CN112233390B (en) * | 2020-09-28 | 2022-04-01 | 上海嘉筠通信技术有限公司 | Water immersion detection alarm with human body induction |
| CN112098717A (en) * | 2020-11-19 | 2020-12-18 | 中国电力科学研究院有限公司 | A system and method for monitoring power consumption status |
| CN114545075A (en) * | 2022-03-08 | 2022-05-27 | 合肥嗖曼岿电子科技有限公司 | Wireless intelligent anti-electricity-stealing system based on Internet of things technology |
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