CN110988420A - Anti-electricity-theft system and anti-electricity-theft control method - Google Patents
Anti-electricity-theft system and anti-electricity-theft control method Download PDFInfo
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Abstract
The application relates to a system and a method for preventing electricity stealing. The electric parameter acquisition module before the table is used for acquiring electric quantity information before a user ammeter. The signal conditioning module is connected with the electric parameter acquisition module in front of the ammeter and used for converting the electric quantity information in front of the user ammeter into an electric quantity information electric signal in front of the ammeter. The electric parameter acquisition module is connected with the signal conditioning module and used for converting the amplified electric quantity information electric signal before the electric meter into an electric quantity digital signal before the electric meter. The first communication module is used for periodically inquiring the electric quantity information of the electric meter displayed by the user electric meter. The analysis module is respectively connected with the electric parameter acquisition module and the first communication module and used for receiving the electric quantity digital signal before the meter and the electric quantity information of the electric information meter and judging whether the user has an electric larceny behavior according to the difference between the electric quantity information before the meter and the electric quantity information of the electric information meter. Therefore, the detection efficiency of electricity stealing of the user is greatly improved, the accuracy of judging the electricity stealing behavior of the user is improved, and the electricity stealing behavior can be effectively prevented.
Description
Technical Field
The present application relates to the field of power, and more particularly to a system and method for controlling power theft.
Background
With the improvement of the economic level and the improvement of the living standard of people, the technology of the electrical equipment is rapidly developed. More and more electrical appliances enrich the life of people, but the demand of people on electric power is more and more, and the expenditure caused by electricity utilization is increased. Under the background, the electric power enterprises are rapidly developed, the economic benefit, the service level and the service quality of the electric power enterprises are rapidly improved, and in the whole power supply process, the electric energy metering device is a key device in the whole power supply link and is an important channel for ensuring the economic income of the electric power enterprises. However, in recent years, in order to avoid and reduce expenditure on electric energy, electricity stealing phenomena of electric energy metering devices frequently occur, electricity stealing modes also change year by year without the development of original individual electricity stealing to the current unit and collective electricity stealing, the original remote areas are developed to town areas, the original life electricity stealing is developed to the production electricity stealing, and electricity stealing technical means are higher and more difficult to find. The electricity stealing behavior not only causes huge loss to the power supply department and damages social and economic aspects, but also influences the safety of the power system, seriously threatens the life and property safety of the power system and other people and destroys the stability of the power system.
Disclosure of Invention
In view of the above, it is necessary to provide a system and a method for controlling power theft.
An electricity stealing prevention system, comprising:
the electric parameter acquisition module in front of the meter is used for acquiring electric quantity information in front of a user electric meter;
the signal conditioning module is connected with the electric parameter acquisition module in front of the ammeter and used for converting the electric quantity information in front of the user ammeter into an electric signal of the electric quantity information in front of the ammeter;
the electric parameter acquisition module is connected with the signal conditioning module and used for converting the amplified electric signal of the electric quantity information in front of the ammeter into a digital signal of the electric quantity in front of the ammeter;
the first communication module is used for periodically inquiring the electric quantity information of the electric meter displayed by the user electric meter; and
and the analysis module is respectively connected with the electric parameter acquisition module and the first communication module and is used for receiving the electric quantity digital signal before the meter and the electric quantity information of the electric information meter and judging whether the user has an electric larceny behavior according to the electric quantity information before the meter and the electric quantity information of the electric information meter.
In one embodiment, further comprising:
the local storage module is connected with the analysis module;
and the function management module is connected with the analysis module, and if the analysis module judges that the user has electricity stealing behavior in a certain period, the function management module stores the electricity quantity information before the meter and the electricity quantity information of the electricity meter in the period in the local storage module.
In one embodiment, the system further comprises a second communication module connected to the function management module, and when the analysis module determines that the user has electricity stealing behavior in a certain period, the function management module sends alarm information through the second communication module.
In one embodiment, the device further comprises a power conversion module, which is respectively connected to the signal conditioning module, the electrical parameter acquisition module, and the analysis module, and is configured to supply power to the signal conditioning module, the electrical parameter acquisition module, and the analysis module.
An electricity larceny prevention control method comprises the following steps:
s10, inquiring the accumulated electric quantity Q0 of the first electric meter of the user electric meter in a preset period;
s20, acquiring the electric quantity information before the user meter, and recording the accumulated electric quantity Qe before the user meter in the preset period;
and S30, judging whether the user has electricity stealing behavior according to the accumulated electric quantity Qe before the user meter and the accumulated electric quantity Q0 of the electric meter.
In one embodiment, the S30 includes:
s31, establishing different load models of the user according to the pre-meter electric quantity information;
s32, obtaining the time T0 of the information of the electric quantity before the electric meter, if the time T0 is not less than the time T1 of the preset period, obtaining the accumulated electric quantity Q1 of the second electric meter of the user electric meter in the preset period, calculating the electric quantity change value of the user electric meter, and judging whether the user has electric larceny behavior according to the electric quantity change value of the user electric meter.
In one embodiment, in S31, the pre-meter charge information includes transient and steady state information of the current and voltage, and the different load models are established according to the transient and steady state information.
In one embodiment, in the S32, the user electricity quantity change value Qm is Q1-Q0, where Q1 represents the second accumulated electricity quantity, and Q0 represents the first accumulated electricity quantity.
In one embodiment, the determining, in S32, whether the user has electricity stealing behavior according to the user electricity quantity change value includes:
and calculating the error rate of the accumulated electric quantity Qe before the user meter and the electric quantity change value Qm of the user meter in the corresponding period, and if the error rate is greater than a preset value, judging that the user has an electric larceny behavior.
In one embodiment, if the time T0 is greater than the time T1 of the preset period, the step of S20 is performed.
In one embodiment, if the error rate is not greater than the preset value, it is determined that the user does not have electricity stealing behavior.
The electricity stealing prevention system provided by the embodiment of the application. The electric parameter acquisition module before the meter is used for acquiring electric quantity information before a user electric meter. The signal conditioning module is connected with the electric parameter acquisition module in front of the electric meter and used for converting the electric quantity information in front of the user electric meter into electric quantity information electric signals in front of the electric meter. The electric parameter acquisition module is connected with the signal conditioning module and used for converting the amplified electric signal of the electric quantity information in front of the electric meter into a digital signal of the electric quantity in front of the electric meter. The first communication module is used for periodically inquiring the electric quantity information of the electric meter displayed by the user electric meter. The analysis module is respectively connected with the electric parameter acquisition module and the first communication module and is used for receiving the electric quantity digital signal before the meter and the electric quantity information of the electric information meter and judging whether the user has an electric larceny behavior according to the difference between the electric quantity information before the meter and the electric quantity information of the electric information meter. Therefore, the detection efficiency of electricity stealing of the user is greatly improved, the accuracy of judging the electricity stealing behavior of the user is improved, and the electricity stealing behavior can be effectively prevented.
Drawings
Fig. 1 is a block diagram of a system for preventing fraudulent use of electricity according to an embodiment of the present application;
fig. 2 is a flowchart of an electricity larceny prevention control method provided in the embodiment of the present application;
fig. 3 is a flowchart of an electricity larceny prevention control method according to another embodiment of the present application.
Description of reference numerals:
electricity larceny prevention system 10
Pre-meter electrical parameter acquisition module 110
Electrical parameter acquisition module 130
Detailed Description
In order to make the purpose, technical solution and advantages of the present application more apparent, the following embodiments are described in further detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be considered as limiting the present application.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Referring to fig. 1, an electricity larceny prevention system 10 is provided in an embodiment of the present application. The electricity larceny prevention system 10 includes a pre-meter electrical parameter acquisition module 110, a signal conditioning module 120, an electrical parameter acquisition module 130, a first communication module 140, and an analysis module 150. The pre-meter electrical parameter collection module 110 is configured to collect pre-meter electrical quantity information of a user. The signal conditioning module 120 is connected to the pre-meter electrical parameter collecting module 110, and is configured to convert the pre-meter electrical quantity information of the user into an electrical pre-meter electrical quantity information electrical signal. The electrical parameter collecting module 130 is connected to the signal conditioning module 120, and is configured to convert the amplified electric signal of the electric quantity information of the electric meter into a digital signal of the electric quantity before the electric meter. The first communication module 140 is configured to periodically query the electric meter quantity information displayed by the user electric meter. The analysis module 150 is connected to the electrical parameter collection module 130 and the first communication module 140, and configured to receive the pre-meter electrical quantity digital signal and the electrical information meter electrical quantity information, and determine whether the user has an electricity stealing behavior according to the pre-meter electrical quantity information and the electrical information meter electrical quantity information.
The electric quantity information before the electric meter refers to the electric quantity information before the cable enters the electric meter of the user. The pre-meter power information may include information such as current, voltage, and power. Because the lines in front of the electric meter and behind the electric meter are connected in series, under the normal condition, the electric quantity information in front of the electric meter can be the same as the electric quantity information of the user load. The signal conditioning module 120 may transform the 220V voltage in front of the meter into 2.2V voltage that can be received by the control board, and then amplify the corresponding signal carrying the information of the electric quantity in front of the electric meter. The electric parameter acquisition module 130 converts the signal carrying the information of the electric quantity before the electricity meter from an analog signal to a digital signal. The digital information is finally analyzed by the analysis module 150. The first communication module 140 may periodically query the current electric quantity of the user electric meter, that is, the electric quantity information of the user electric meter, through a 485 communication protocol, where the periodic time may be 15 minutes. The analysis module 150 may determine the pre-meter power information and the power information meter power information. If the electricity quantity information before the electricity meter is different from the electricity consumption information of the user load, the fact that the electricity consumption of the user is abnormal is indicated, and therefore whether the user has the point-of-contact behavior or not is convenient to judge.
The electricity larceny prevention system 10 provided by the embodiment of the application. The pre-meter electrical parameter collection module 110 is configured to collect pre-meter electrical quantity information of a user. The signal conditioning module 120 is connected to the pre-meter electrical parameter collecting module 110, and is configured to convert the pre-meter electrical quantity information of the user into an electrical pre-meter electrical quantity information electrical signal. The electrical parameter collecting module 130 is connected to the signal conditioning module 120, and is configured to convert the amplified electric signal of the electric quantity information of the electric meter into a digital signal of the electric quantity before the electric meter. The first communication module 140 is configured to periodically query the electric meter quantity information displayed by the user electric meter. The analysis module 150 is connected to the electrical parameter collection module 130 and the first communication module 140, and configured to receive the pre-meter electrical quantity digital signal and the electrical information meter electrical quantity information, and determine whether the user has an electricity stealing behavior according to a difference between the pre-meter electrical quantity information and the electrical information meter electrical quantity information. Therefore, the detection efficiency of electricity stealing of the user is greatly improved, the accuracy of judging the electricity stealing behavior of the user is improved, and the electricity stealing behavior can be effectively prevented.
In one embodiment, the electricity theft prevention system 10 further includes a local storage module 160 and a function management module 170. The local storage module 160 is connected to the analysis module 150. The function management module 170 is connected to the analysis module 150. If the analysis module 150 determines that the user has electricity stealing behavior in a certain period, the function management module 170 stores the pre-meter electricity quantity information and the electricity meter electricity quantity information in the period in the local storage module 160. By storing the pre-meter power information and the electric meter power information in the local storage module 160, a large amount of accumulated pre-meter power information and electric meter power information can be analyzed to determine electricity stealing behavior as a reference. Meanwhile, the ID information of the user can be stored in the before-meter electric quantity information and the electric quantity information of the electric meter, so that the user can be accurately judged to have the electric larceny behavior, and the electric larceny degree of the user can be further analyzed through a large amount of before-meter electric quantity information and the electric quantity information of the electric meter. The function management module 170 may be further configured to coordinate relationships among the analysis module 150, the first communication module 140, and the local storage module 160, and adjust timing between different modules.
In one embodiment, the electricity theft prevention system 10 further includes a second communication module 180. The second communication module 180 is also connected to the function management module 170. When the analysis module 150 determines that the user has the electricity stealing behavior in a certain period, the function management module 170 sends an alarm message through the second communication module 180. The second communication module 180 may be connected to an external alarm lamp or alarm bell, so as to alarm when the user has an electricity stealing behavior.
In one embodiment, the anti-theft system 10 further includes a power conversion module 190. The power conversion module 190 may be connected to the signal conditioning module 120, the electrical parameter collecting module 130, and the analyzing module 150, respectively. The power supply module is used for supplying power to the signal conditioning module 120, the electrical parameter acquisition module 130 and the analysis module 150. The power conversion module 190 may be an ac-to-dc device, and may supply power to the signal conditioning module 120, the electrical parameter acquisition module 130, and the analysis module 150 through a dc connection.
Referring to fig. 2, an embodiment of the present application further provides a method for controlling power theft prevention. The method comprises the following steps:
s10, inquiring the electric meter accumulated electric quantity Q0 of the user electric meter in a preset period;
s20, acquiring the electric quantity information before the user meter, and recording the accumulated electric quantity Qe before the user meter in the preset period;
and S30, judging whether the user has electricity stealing behavior according to the accumulated electric quantity Qe before the user meter and the accumulated electric quantity Q0 of the electric meter.
In S10, the accumulated electric quantity Q0 of the electric meter in the preset period may be an electric quantity displayed by the electric meter when the user does not steal electricity in a normal state, and may be a reference for subsequent determination.
In S20, the collected signal carrying the pre-meter power information may be filtered and amplified by the pre-meter electrical parameter collection module 110. It is understood that, in order to save storage space, the time of each preset period can be measured by a timer. And before entering the next preset period after the last preset period, the accumulated electric quantity Qe before the meter stored in the last preset period can be cleared. And enters the next accumulation period.
In S30, in a preset period, if the user uses electricity normally, the accumulated electric quantity Q0 of the electricity meter and the accumulated electric quantity Qe before the user meter should be the same within the system error range. If the difference between the electric meter accumulated electric quantity Q0 and the user meter accumulated electric quantity Qe is too large, the user can be judged to have electricity stealing behavior. This determination can be performed by the analysis module 150, i.e., the CPU.
Referring to fig. 3, in one embodiment, the S30 includes:
s31, establishing different load models of the user according to the pre-meter electric quantity information;
s32, obtaining the time T0 of the information of the electric quantity before the electric meter, if the time T0 is not less than the time T1 of the preset period, obtaining the accumulated electric quantity Q1 of the second electric meter of the user electric meter in the preset period, calculating the electric quantity change value of the user electric meter, and judging whether the user has electric larceny behavior according to the electric quantity change value of the user electric meter.
In S31, the pre-meter power information may include power consumption information of different load electrical appliances of the user, the load model of each electrical appliance may be obtained by inductive clustering according to the power consumption information of different electrical appliances, the clustering process may be performed in the analysis module 150, and if a new electrical appliance load model is induced by the power consumption information, it indicates that the user is using a new electrical appliance, and it may assist in determining whether the user has a power stealing behavior.
In S32, if the time T0 is not less than the time T1 of the preset period, which indicates that the period is a complete preset period, the accumulated electric quantity Q1 of the second electric meter in the preset period may be further collected. And then judging whether the user has electricity stealing behavior according to the electricity quantity change of the first electricity meter accumulated electricity quantity Q0 and the second electricity meter accumulated electricity quantity Q1 in the preset period.
In one embodiment, in S31, the pre-meter charge information includes transient and steady state information of the current and voltage, and the different load models are established according to the transient and steady state information. The transient state can comprise a resistive property and an inductive property of the electric appliance, and the transient state and steady state information of the current and the voltage can reflect the characteristics of the electric appliance, so that the type of the electric appliance can be judged.
In one embodiment, in the S32, the user electricity quantity change value Qm is Q1-Q0, where Q1 represents the second accumulated electricity quantity, and Q0 represents the first accumulated electricity quantity. If the difference of the electric quantity change values of the user electric meters is large, the fact that the electricity consumption of the users is abnormal is indicated, and whether electricity stealing behaviors exist needs to be further judged.
In one embodiment, the determining, in S32, whether the user has electricity stealing behavior according to the user electricity quantity change value includes:
and calculating the error rate of the accumulated electric quantity Qe before the user meter and the electric quantity change value Qm of the user meter in the corresponding period, and if the error rate is greater than a preset value, judging that the user has an electric larceny behavior. The error rate may be obtained empirically. In one embodiment, the preset value may be 5%. If the electricity stealing behavior is judged, the abnormal electricity utilization behavior accurate to the second level in the time period is locally stored and is endowed with a unique abnormal event ID, so that the subsequent analysis is facilitated. The user meter front accumulated electric quantity Qe and the user meter electric quantity change value Qm may be data in the same preset period.
In one embodiment, if it is determined to be an abnormal behavior, the device ID generating the alarm and the current abnormal event ID are uploaded to the local power company management system through the second communication module 180, so that a person who sends the alarm can conveniently perform on-site investigation and evidence collection, the electricity stealing behavior of the user is implemented, and the monitoring can be continued by returning to step S10 after the uploading is successful.
In one embodiment, if the time T0 is greater than the time T1 of the preset period, the step of S20 is performed.
In one embodiment, if the error rate is not greater than the preset value, it is determined that the user does not have electricity stealing behavior, and the further loop monitoring is continued to be performed at S10.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present patent. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (11)
1. An electricity larceny prevention system, characterized in that, the electricity larceny prevention system includes:
the electric parameter acquisition module (110) before the meter is used for acquiring the electric quantity information before the user electricity meter;
the signal conditioning module (120) is connected with the electric parameter acquisition module (110) in front of the electric meter and is used for converting the electric quantity information of the user before the electric meter into an electric signal of the electric quantity information before the electric meter;
the electric parameter acquisition module (130) is connected with the signal conditioning module (120) and is used for converting the amplified electric signal of the electric quantity information of the electric meter into a digital signal of the electric quantity before the meter;
the first communication module (140) is used for periodically inquiring the electric quantity information of the electric meter displayed by the user electric meter; and
and the analysis module (150) is respectively connected with the electric parameter acquisition module (130) and the first communication module (140), and is used for receiving the electric quantity digital signal before the meter and the electric quantity information of the electric information meter and judging whether the user has an electric larceny behavior according to the electric quantity information before the meter and the electric quantity information of the electric information meter.
2. The system for preventing electricity theft of claim 1, further comprising:
a local storage module (160) connected to the analysis module (150);
the function management module (170) is connected with the analysis module (150), and if the analysis module (150) judges that the user has electricity stealing behavior in a certain period, the function management module (170) stores the electricity quantity information before the meter and the electricity meter in the period in the local storage module (160).
3. The electricity larceny prevention system of claim 2, further comprising a second communication module (180) connected to the function management module (170), wherein when the analysis module (150) determines that the user has electricity larceny behavior within a certain period, the function management module (170) sends an alarm message through the second communication module (180).
4. Anti-electricity-theft system according to any of claims 1 to 3, further comprising a power conversion module (190) connected to said signal conditioning module (120), said electrical parameter acquisition module (130) and said analysis module (150), respectively, for supplying power to said signal conditioning module (120), said electrical parameter acquisition module (130) and said analysis module (150).
5. An electricity larceny prevention control method is characterized by comprising the following steps:
s10, inquiring the accumulated electric quantity Q0 of the first electric meter of the user electric meter in a preset period;
s20, acquiring the electric quantity information before the user meter, and recording the accumulated electric quantity Qe before the user meter in the preset period;
and S30, judging whether the user has electricity stealing behavior according to the accumulated electric quantity Qe before the user meter and the accumulated electric quantity Q0 of the electric meter.
6. The electricity theft prevention control method as claimed in claim 5, wherein said S30 comprises:
s31, establishing different load models of the user according to the pre-meter electric quantity information;
s32, obtaining the time T0 of the information of the electric quantity before the electric meter, if the time T0 is not less than the time T1 of the preset period, obtaining the accumulated electric quantity Q1 of the second electric meter of the user electric meter in the preset period, calculating the electric quantity change value of the user electric meter, and judging whether the user has electric larceny behavior according to the electric quantity change value of the user electric meter.
7. The electricity theft prevention control method of claim 6, wherein in S31, the pre-meter power information includes transient and steady state information of current and voltage, and different load models are established according to the transient and steady state information.
8. The electricity theft prevention control method of claim 6, wherein in the S32, the user electricity quantity variation Qm is Q1-Q0, wherein Q1 represents the second accumulated electricity quantity, and Q0 represents the first accumulated electricity quantity.
9. The electricity theft prevention control method of claim 8, wherein the step of determining whether the user has electricity theft behavior according to the electricity quantity variation value of the user electricity meter in S32 comprises:
and calculating the error rate of the accumulated electric quantity Qe before the user meter and the electric quantity change value Qm of the user meter in the corresponding period, and if the error rate is greater than a preset value, judging that the user has an electric larceny behavior.
10. The electricity theft prevention control method of claim 9, wherein if the time T0 is greater than the time T1 of the preset period, the step of S20 is performed.
11. The electricity stealing prevention control method of claim 9, wherein if the error rate is not greater than the preset value, it is determined that the user does not have electricity stealing behavior.
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| CN111751613A (en) * | 2020-06-18 | 2020-10-09 | 深圳供电局有限公司 | Refrigerator electricity stealing detection method |
| CN112485513A (en) * | 2020-11-11 | 2021-03-12 | 南京能瑞自动化设备股份有限公司 | User power utilization monitoring system and method |
| CN114217110A (en) * | 2021-11-17 | 2022-03-22 | 国网天津市电力公司 | Anti-electricity-theft device capable of locking behavior |
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