CN205374724U - An anti-theft test device - Google Patents

Abstract

The utility model provides an electricity larceny prevention testing device, which comprises a municipal power supply wiring terminal, a load loop electrically connected with the municipal power supply wiring terminal, and an industrial personal computer electrically connected with the load loop, wherein the load loop comprises a line resistance unit electrically connected with the municipal power supply wiring terminal; the unidirectional electric energy meter is electrically connected with the circuit resistance unit; and the industrial personal computer is electrically connected with the unidirectional electric energy meter. The electricity stealing prevention testing device simulates electricity stealing behaviors of users by modifying a line impedance unit or a single-phase electric energy meter wiring mode, the single-phase electric energy meter uploads metering data to an industrial personal computer in a unified mode, the electricity stealing behaviors are analyzed on the industrial personal computer by adopting a user behavior analysis method and a network characteristic analysis method, and an analysis result is displayed on the upper computer. The device is simple in structure and convenient to install, and can effectively test the electricity stealing prevention function based on user behavior analysis and network characteristic analysis.

Description

An anti-theft test device

technical field

The utility model relates to a test device, in particular to an anti-stealing test device.

Background technique

At present, due to the lack of advanced measurement measures and scientific management methods in the domestic power supply sector, electricity theft is more common in some areas, and the country loses high profits in power marketing every year. It has caused the tension of electric power energy, and has brought negative impacts on electric power enterprises, national life and national interests. At present, the common means of stealing electricity mainly include five methods: undervoltage method, undercurrent method, phase shift method, differential expansion method and meterless method. For the above five means of stealing electricity, the main anti-stealing technologies include the following four: anti-stealing energy meter, primary/secondary comparison method, anti-stealing technology based on user behavior analysis, and anti-stealing technology based on network feature analysis. Stealing technology.

Among them, the anti-stealing technology based on user behavior analysis is based on the theory of electricity consumption behavior analysis, and believes that the trajectory of electricity consumption behavior of similar users in the same specific area or the same user should have certain regularity. Therefore, the relevant method theory of pattern recognition is adopted, and a large amount of historical electricity consumption data accumulated by power supply enterprises is used to train the classifier, determine the relevant parameters of the classifier, and then predict and evaluate the current user electricity consumption, and compare the predicted evaluation value with the actual measurement. Values are compared to determine whether there is electricity stealing. The anti-stealing technology based on the analysis of network characteristics calculates the correct state quantity of the distribution network operation through state estimation, bad data detection and identification according to the redundancy of the secondary side voltage, current, active power and reactive power. If the deviation between the estimated value and the measured value is too large, it is considered that the user of the test point is stealing electricity.

At present, there are devices for anti-stealing function testing of anti-stealing electric energy meters on the market, but there is no device for anti-stealing function testing based on user behavior analysis and network characteristic analysis. Therefore, it is necessary to design a set of anti-stealing function test device based on the analysis of user behavior and network characteristics, based on which, the behavior of stealing electricity is simulated, and the corresponding anti-stealing scheme is tested to verify the anti-stealing effect.

Utility model content

The utility model provides an anti-stealing test device. The anti-stealing test device has low cost, simple interface and convenient installation, and can effectively test the anti-stealing function based on user behavior analysis and network characteristic analysis.

The utility model provides an anti-stealing electricity testing device, the anti-stealing electricity testing device comprises a commercial power supply terminal, a load circuit electrically connected to the commercial power supply terminal, and an industrial computer electrically connected to the load circuit , wherein the load circuit includes a line impedance unit electrically connected to the commercial power terminal; a one-way electric energy meter electrically connected to the line impedance unit; a load electrically connected to the one-way electric energy meter socket, and the industrial computer is electrically connected to the one-way electric energy meter.

Preferably, the load circuit further includes a first switch and a second switch, the commercial power connection terminal includes a neutral line access terminal and a live line access terminal, and the line impedance unit includes a neutral line and a live line inside, wherein , one end of the first switch is electrically connected to the neutral line access terminal, the other end of the first switch is electrically connected to the neutral line of the line impedance unit; one end of the second switch is electrically connected to the The live wire access terminal is electrically connected, and the other end of the second switch is electrically connected to the live wire of the line impedance unit.

Preferably, the load circuit further includes a third switch and a fourth switch, and the one-way electric energy meter includes a zero line and a live line inside, wherein, both ends of the third switch are respectively electrically connected to the zero line of the one-way electric energy meter. The two ends of the wire; the two ends of the fourth switch are respectively electrically connected to the two ends of the live wire of the one-way electric energy meter.

Preferably, the load circuit further includes a fifth switch and a sixth switch, and the load socket includes a neutral wire and a live wire, wherein one end of the fifth switch is electrically connected to the neutral wire of the one-way electric energy meter, The other end of the fifth switch is electrically connected to the neutral wire of the load socket; one end of the sixth switch is electrically connected to the live wire of the one-way electric energy meter, and the other end of the sixth switch is electrically connected to the load socket. Hot wire electrical connection to socket.

Preferably, the anti-stealing test device further includes a wiring board, one end of the wiring board is electrically connected to the commercial power terminal, and the other end of the wiring board is electrically connected to the line impedance unit.

Preferably, the anti-theft test device further includes a hub, one end of the hub is electrically connected to the one-way electric energy meter, and the other end of the hub is electrically connected to the industrial computer.

Preferably, the anti-stealing test device includes 4 load circuits, and one end of the 4 load circuits is electrically connected to the commercial power terminal through the wiring board, and the other ends of the 4 load circuits One end is electrically connected with the industrial control electromechanical device through the hub.

Preferably, the anti-stealing electricity testing device further includes a power indicator light, one end of the power indicator light is electrically connected to the commercial power terminal, and the other end of the power indicator light is electrically connected to the terminal block.

Preferably, the anti-theft test device further includes a seventh switch, one end of the seventh switch is electrically connected to the commercial power terminal, and the other end of the seventh switch is electrically connected to the power indicator light.

The technical solutions provided by the embodiments of the present invention may include the following beneficial effects:

The utility model provides an anti-stealing electricity testing device, the anti-stealing electricity testing device comprises a commercial power supply terminal, a load circuit electrically connected to the commercial power supply terminal, and an industrial computer electrically connected to the load circuit , wherein the load circuit includes a line impedance unit electrically connected to the commercial power terminal; a one-way electric energy meter electrically connected to the line impedance unit; a load electrically connected to the one-way electric energy meter socket, and the industrial computer is electrically connected to the one-way electric energy meter. This anti-stealing electricity test device simulates the user's electricity theft behavior by modifying the line impedance unit or the wiring mode of the single-phase electric energy meter. and network feature analysis method to analyze electricity stealing behavior, and display the analysis results on the host computer. The anti-stealing test device includes three parts: the commercial power terminal, the load circuit and the industrial computer. This device has a simple structure and is easy to install. It simulates the behavior of stealing electricity by modifying the load circuit, and uses the industrial computer to collect and analyze relevant data. It can effectively test the anti-theft function based on user behavior analysis and network feature analysis.

It should be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present invention.

Description of drawings

Fig. 1 is a schematic structural view of the first anti-stealing test device provided in the embodiment of the present invention;

Fig. 2 is a schematic structural diagram of a load circuit provided in an embodiment of the present invention;

Fig. 3 is a schematic structural diagram of a second anti-stealing test device provided in the embodiment of the present invention;

Fig. 4 is an expanded schematic diagram of the load circuit provided in the embodiment of the present invention;

Fig. 5 is an expanded schematic diagram of the hub provided in the embodiment of the present invention;

Fig. 6 is a schematic structural diagram of a third anti-stealing electricity testing device provided in the embodiment of the present invention.

Symbol means:

1-city power terminal, 2-load circuit, 201-first load circuit, 202-second load circuit, 3-line impedance unit, 31-first line impedance unit, 32-second line impedance unit, 4-one-way watt-hour meter, 41-first single-phase watt-hour meter, 42-second single-phase watt-hour meter, 5-load socket, 51-first load socket, 52-second load socket, 6-industrial computer, 7 -Terminal board, 71-first terminal board, 72-second terminal board, 8-hub, 81-first hub, 82-second hub, 9-power indicator light, 10-AC/DC power supply, 11-zero Line access terminal, 12-fire wire access terminal, 21-first switch, 22-second switch, 23-third switch, 24-fourth switch, 25-fifth switch, 26-sixth switch, 27- Seventh switch.

detailed description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present invention. Rather, they are merely examples of arrangements consistent with aspects of the invention as recited in the appended claims.

Each embodiment in this specification is described in a progressive manner, the same and similar parts of each embodiment can be referred to each other, and each embodiment focuses on the differences from other embodiments.

Please refer to FIG. 1 , which is a schematic structural diagram of the first anti-stealing test device provided in the embodiment of the present invention.

It can be seen from FIG. 1 that this embodiment provides an anti-stealing test device, which includes a commercial power terminal 1, a load circuit 2 electrically connected to the commercial power terminal 1, and the An industrial computer 6 electrically connected to the load circuit 2, wherein the load circuit 2 includes a line impedance unit 3 electrically connected to the commercial power terminal 1; Electric energy meter 4 ; a load socket 5 electrically connected to the one-way electric energy meter 4 , and the industrial computer 6 is electrically connected to the one-way electric energy meter 4 .

One end of the commercial power connection terminal 1 in this embodiment is connected to the commercial power, and the other end is electrically connected to the load circuit 2 . The commercial power supply is AC220V for civil use, which can be used as a test power supply to provide electric energy for the entire anti-theft test device, including power supply for the load circuit 2 and power supply for the industrial computer 6 .

Generally, the user can interfere with the measurement of the electric energy meter by modifying the impedance value of the line, so as to realize the behavior of stealing electricity. In this embodiment, the line impedance unit 3 is used to simulate the line impedance in an actual power grid, and the line impedance unit 3 may be a capacitive impedance, an inductive impedance or a linear impedance. One end of the line impedance unit 3 is electrically connected to the commercial power terminal 1, and the other end is electrically connected to the one-way electric energy meter 4. By modifying the impedance value of the line impedance unit 3, the electricity stealing method in which the user uses a capacitor or an inductance to steal electricity in the actual power grid can be simulated. .

The one-way watt-hour meter 4 provided in the present embodiment has an RS485 interface, and is electrically connected with the line impedance unit 3, the load socket 5 and the industrial computer 6 respectively, and is used for measuring the electric energy consumption in this anti-stealing test device, and will The metering data is uploaded to the industrial computer 6, and the electricity stealing behavior is analyzed by the industrial computer 6.

The industrial computer 6 provided in this embodiment analyzes the measurement data uploaded by the one-way electric energy meter 4 based on the user behavior analysis method and the network characteristic analysis method, and determines whether there is electricity stealing behavior through analysis, and compares the determination result with the experimental operation, so as to achieve The purpose of verifying the anti-stealing effect.

This anti-stealing electricity test device simulates the electricity stealing behavior of the user by modifying the line impedance unit 3 or the wiring mode of the single-phase electric energy meter 4. Based on the user behavior analysis method and the network characteristic analysis method, the stealing behavior is analyzed, and the analysis results are displayed on the host computer. The anti-stealing test device includes three parts: commercial power terminal 1, load circuit 2 and industrial computer 6. This device has a simple structure and is easy to install. Analysis of relevant data can effectively test the anti-theft function based on user behavior analysis and network feature analysis.

Please refer to FIG. 2 , which is a schematic structural diagram of a load circuit provided in an embodiment of the present invention.

It can be seen from Fig. 2 that the load circuit 2 also includes a first switch 21 and a second switch 22, the commercial power terminal 1 includes a neutral line access terminal 11 and a live line access terminal 12, and the line impedance unit 3. It includes a neutral line and a live line inside, wherein one end of the first switch 21 is electrically connected to the neutral line access terminal 11, and the other end of the first switch 21 is connected to the neutral line of the line impedance unit 3. Electrical connection; one end of the second switch 22 is electrically connected to the live wire access terminal 12 , and the other end of the second switch 22 is electrically connected to the live wire of the line impedance unit 3 .

Further, the load circuit 2 also includes a third switch 23 and a fourth switch 24, and the one-way electric energy meter 4 includes a neutral wire and a live wire inside, wherein the two ends of the third switch 23 are respectively electrically connected to the single To the two ends of the zero line of the electric energy meter 4; the two ends of the fourth switch 24 are respectively electrically connected to the two ends of the live line of the one-way electric energy meter 4.

Further, the load circuit 2 also includes a fifth switch 25 and a sixth switch 26, and the load socket 5 includes a neutral wire and a live wire inside, wherein, one end of the fifth switch 25 is connected to the one-way electric energy meter 4 The neutral line is electrically connected, the other end of the fifth switch 25 is electrically connected to the neutral line of the load socket 5; one end of the sixth switch 26 is electrically connected to the live line of the one-way electric energy meter 4, and the first The other end of the six switch 26 is electrically connected to the live wire of the load socket 5 .

Furthermore, the anti-stealing test device also includes a wiring board 7, one end of the wiring board 7 is electrically connected to the commercial power terminal 1, and the other end of the wiring board 7 is connected to the line impedance unit 3 electrical connection.

The utility model realizes the simulation of the electricity stealing behavior of the user by changing the opening or closing state of the first switch 21 , the second switch 22 , the third switch 23 , the fourth switch 24 , the fifth switch 25 and the sixth switch 26 . When the opening and closing states of the first switch 21, the second switch 22, the third switch 23, the fourth switch 24, the fifth switch 25 and the sixth switch 26 change, the connection state of the neutral wire or the live wire in the power network will be changed. Changes follow.

Specifically, if the first switch 21 is disconnected, the neutral wire electrically connected to the first switch 21 is disconnected. Therefore, the method of disconnecting the first switch 21 is used to simulate the way of stealing power by breaking the neutral wire; if the second switch 22 disconnect, then the live wire electrically connected with the second switch 22 is disconnected, therefore, the method of disconnecting the second switch 22 is used for simulating the zero-off function; closing the third switch 23, then the single-phase The zero line measuring end of the electric energy meter 4 is shorted, and the fourth switch 24 is closed, and the live line measuring end of the single-phase electric energy meter 4 electrically connected to the fourth switch 24 is shorted, therefore, the third switch 23 or the fourth switch 24 is closed The method is used to simulate the two-way imbalance of the electric energy meter; disconnect the fifth switch 25, then the neutral wire electrically connected with the fifth switch 25 is disconnected, and disconnect the sixth switch 26, then the live wire electrically connected with the sixth switch 26 Disconnection, resulting in the load not connected to the power network, is used to simulate load shedding.

When the first switch 21, the second switch 22, the third switch 23, the fourth switch 24, the fifth switch 25 and the sixth switch 26 are in the open or closed state, the physical quantities such as current and voltage in the power network change , the power value measured by the single-phase watt-hour meter 4 changes accordingly, and the power value and other information are uploaded to the industrial computer 6 through the RS485 interface of the single-phase watt-hour meter 4, and the industrial computer 6 analyzes according to the user behavior analysis method or the network characteristic analysis method. The user's power theft situation.

Please refer to FIG. 3 , which is a schematic structural diagram of the second anti-stealing test device provided in the embodiment of the present invention.

As can be seen from Fig. 3, the described anti-stealing test device also includes a terminal board 7, one end of the terminal board 7 is electrically connected to the commercial power terminal 1, and the other end of the terminal board 7 is connected to the line impedance unit 3 electrical connections.

The wiring board 7 in this embodiment acts as a shunt, and can expand the load circuit 2 under test at the same time. The number of plugs in the wiring board 7 can be 4 plugs/6 plugs/8 plugs/12 plugs according to needs Wait for any one, the two ends of the wiring board 7 are respectively connected with the commercial power terminal 1 and the line impedance unit 3 .

Further, the anti-stealing electricity testing device further includes a hub 8 , one end of the hub 8 is electrically connected to the one-way electric energy meter 4 , and the other end of the hub 8 is electrically connected to the industrial computer 6 . The number of output interfaces of the hub 8 is any one of 4/8 interfaces, which is used to collect the metering data of the one-way electric energy meter 4, and the number of hubs 8 can be expanded through the interfaces.

Please refer to FIG. 4 , which is an expanded schematic diagram of the load circuit provided in the embodiment of the present invention.

It can be seen from FIG. 4 that the utility model can expand the load circuit 2 through the wiring board 7 . The wiring board 7 in this embodiment includes a first wiring board 71 and a second wiring board 72; the load loop 2 includes a first load loop 201 and a second load loop 202; the first load loop 201 includes a first line impedance unit 31 , the first single-phase electric energy meter 41 and the first load socket 51; the second load circuit 202 includes the second line impedance unit 32, the second single-phase electric energy meter 42 and the second load socket 52.

One end of the first wiring board 71 is connected to the commercial power terminal 1 , and the other end of the first wiring board 71 is connected to the first load circuit 21 . A certain jack of the first wiring board 71 can be connected to the second wiring board 72 , and other jacks can be connected to the first load circuit 21 . Any socket of the second wiring board 72 is connected to the second load circuit 202 . By analogy, the number of load circuits 2 can be further expanded.

Please refer to FIG. 5 , which is an expanded schematic view of the hub provided in the embodiment of the present invention.

It can be seen from Figure 5 that if the load circuit 2 is expanded as shown in Figure 4, the RS485 interface also needs to be expanded. The hub 8 includes a first hub 81 and a second hub 82 . A certain interface of the first hub 81 is electrically connected to the second hub 82 . Other interfaces of the first hub 81 are electrically connected to the first single-phase energy meter 41 , and other interfaces of the second hub 82 are electrically connected to the second single-phase energy meter 42 . By analogy, the number of RS485 communication interfaces can also be further expanded.

Please refer to FIG. 6 , which is an expanded schematic view of the hub provided in the embodiment of the present invention.

It can be seen from FIG. 6 that the anti-stealing test device includes 4 load circuits 2, and one end of the 4 load circuits 2 is electrically connected to the commercial power terminal 1 through the wiring board 7, the The other ends of the four load circuits 2 are electrically connected to the industrial computer 6 through the hub 8 . The anti-stealing test device in this embodiment can arbitrarily expand the number of load circuits 2 and communication interfaces in the access device through the terminal board 7 and the hub 8 according to the needs of the experiment. The interface of this device is simple, and it is easy to install and disassemble.

Further, the anti-stealing test device also includes a power indicator light 9, one end of the power indicator light 9 is electrically connected to the commercial power terminal 1, and the other end of the power indicator light 9 is electrically connected to the terminal block 7 . The power indicator light 9 in this embodiment adopts an incandescent lamp, which is used to show whether the anti-theft test device is powered on.

Furthermore, the anti-stealing test device also includes a seventh switch 27, one end of the seventh switch 27 is electrically connected to the commercial power terminal 1, and the other end of the seventh switch 27 is electrically connected to the power supply indicator light 9. In this embodiment, the seventh switch 27 is a single-chip air switch, which is used to control the power on and off of the anti-stealing test device, and plays the role of a protection device.

The anti-stealing test device also includes an AC/DC power supply, the AC/DC power supply is an AC220V input and a DC24V output power supply, which provides power for the hub 8 and is connected to the commercial power terminal 1 and the hub 8 respectively.

It should be noted that in this article, relative terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these No such actual relationship or order exists between entities or operations. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

The invention may be described in the general context of computer-executable instructions, such as program modules, being executed by a computer. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types. The invention may also be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules may be located in both local and remote computer storage media including storage devices.

The embodiments of the utility model described above do not constitute a limitation to the protection scope of the utility model. Any modification, equivalent replacement and improvement made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

The above descriptions are only specific implementation methods of the present utility model, so that those skilled in the art can understand or realize the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

1. a thief-proof electric test device, it is characterized in that, described thief-proof electric test device includes the industrial computer (6) that the load circuit (2) that city's power supply terminal (1) electrically connects electrically connects with described load circuit (2) with described city power supply terminal (1), wherein, described load circuit (2) including:

Circuit resistance unit (3) electrically connected with described city power supply terminal (1)；

The unidirectional electric energy table (4) electrically connected with described circuit resistance unit (3)；

The load socket (5) electrically connected with described unidirectional electric energy table (4), and described industrial computer (6) electrically connects with described unidirectional electric energy table (4).

2. thief-proof electric test device according to claim 1, it is characterized in that, described load circuit (2) also includes the first switch (21) and second switch (22), described city power supply terminal (1) includes zero line and accesses terminal (11) and live wire access terminal (12), described circuit resistance unit (3) is internal includes zero line and live wire, wherein

One end of described first switch (21) is accessed terminal (11) with described zero line and is electrically connected, and the other end of described first switch (21) electrically connects with the zero line of described circuit resistance unit (3)；

One end of described second switch (22) is accessed terminal (12) with described live wire and is electrically connected, and the other end of described second switch (22) electrically connects with the live wire of described circuit resistance unit (3).

3. thief-proof electric test device according to claim 2, it is characterized in that, described load circuit (2) also includes the 3rd switch (23) and the 4th switch (24), and described unidirectional electric energy table (4) is internal includes zero line and live wire, wherein

The two ends being electrically connected to both ends of described unidirectional electric energy table (4) zero line of described 3rd switch (23)；

The two ends being electrically connected to both ends of described unidirectional electric energy table (4) live wire of described 4th switch (24).

4. thief-proof electric test device according to claim 3, it is characterized in that, described load circuit (2) also includes the 5th switch (25) and the 6th switch (26), and described load socket (5) is internal includes zero line and live wire, wherein

One end of described 5th switch (25) electrically connects with the zero line of described unidirectional electric energy table (4), and the other end of described 5th switch (25) electrically connects with the zero line of described load socket (5)；

One end of described 6th switch (26) electrically connects with the live wire of described unidirectional electric energy table (4), and the other end of described 6th switch (26) electrically connects with the live wire of described load socket (5).

5. thief-proof electric test device according to claim 4, it is characterized in that, described thief-proof electric test device also includes patch panel (7), one end of described patch panel (7) electrically connects with city's power supply terminal (1), and the other end of described patch panel (7) electrically connects with described circuit resistance unit (3).

6. thief-proof electric test device according to claim 5, it is characterized in that, described thief-proof electric test device also includes hub (8), one end of described hub (8) electrically connects described unidirectional electric energy table (4), and the other end of described hub (8) electrically connects described industrial computer (6).

7. thief-proof electric test device according to claim 6, it is characterized in that, described thief-proof electric test device includes 4 load circuits (2), and one end of described 4 load circuits (2) electrically connects with described city power supply terminal (1) each through described patch panel (7), the other end of described 4 load circuits (2) electrically connects with described industrial computer (6) each through described hub (8).

8. thief-proof electric test device according to claim 7, it is characterized in that, described thief-proof electric test device also includes power supply indicator (9), one end electrical connection described city power supply terminal (1) of described power supply indicator (9), the other end of described power supply indicator (9) electrically connects described patch panel (7).

9. the thief-proof electric test device according to any one of claim 1-8, it is characterized in that, described thief-proof electric test device also includes the 7th switch (27), one end electrical connection described city power supply terminal (1) of described 7th switch (27), the other end of described 7th switch (27) electrically connects described power supply indicator (9).