Electricity larceny checking method and system for null line access fan speed regulator

Abstract

The invention provides an electricity larceny checking method and system for a null line access fan speed regulator, and the method comprises the steps: collecting the electricity data of a to-be-detected target home-entry end; determining a voltage value of an electric energy meter according to the power consumption data of the target home-entry end, and judging whether the voltage value of the electric energy meter is smaller than a commercial power voltage value, or whether the voltage value of the electric energy meter has a remote monitoring voltage smaller than the commercial power voltage value and a field detection voltage not smaller than the commercial power voltage value; if yes, it is judged that an electricity stealing user may exist, and the voltage of the electric energy meter is recovered to the commercial power voltage value; and collecting image information of the home-entry end of a user possibly having electricity stealing, determining whether a fan speed regulator or a null line fracture exists or not according to the image information, if the fan speed regulator or the null line fracture exists, determining that the electricity stealing behavior exists at the target home-entry end, and outputting alarm information. According to the invention, misguidance brought to workers on site is avoided, and the investigation efficiency and success rate of the electricity stealing mode can be effectively improved.

Description

Technical Field

[0001] This invention relates to the field of electricity theft detection technology, and in particular to a method and system for detecting electricity theft in a fan speed controller with the neutral wire connected to it. Background Technology

[0002] In the operation of the power system, the safety and accuracy of electricity metering devices are crucial. They not only affect the economic interests of power companies but also directly impact the legitimate rights and safety of electricity customers. However, in reality, some customers steal electricity to reduce their bills. Electricity theft disrupts the normal order of power supply and consumption and poses safety hazards. It directly leads to revenue losses for power companies and affects investment in power grid construction, maintenance, and upgrades. Electricity thieves often illegally modify wiring, causing overloads, short circuits, or poor connections, which can easily lead to fires and threaten life and property. Power supply companies have invested significant manpower and resources in combating electricity theft and have recently discovered a method of stealing electricity by artificially connecting a fan speed controller to the neutral line of smart meters. This method is highly concealed: firstly, the voltage can be manually adjusted, then restored to the mains voltage during on-site inspections, making it impossible to detect abnormal meter voltage; secondly, even if the meter voltage is found to be too low, the meter wiring, seals, and the voltage of the incoming line matching the displayed voltage often create the illusion of a meter malfunction. Summary of the Invention

[0003] The purpose of this invention is to propose a method and system for detecting electricity theft in fan speed controllers connected to the neutral wire, and to solve the technical problem of how to improve the efficiency and success rate of detecting this type of electricity theft.

[0004] On the one hand, a method for verifying electricity theft in a fan speed controller connected to the neutral wire is provided, including:

[0005] Collect electricity consumption data from the in-home terminal of the target device to be tested;

[0006] The voltage value of the electricity meter is determined based on the electricity consumption data of the target household terminal, and it is determined whether the voltage value of the electricity meter is lower than the mains voltage value, or whether the voltage value of the electricity meter is remotely monitored to be lower than the mains voltage value and the on-site detection voltage is not lower than the mains voltage value; if the voltage value of the electricity meter is lower than the mains voltage value, or if the remote monitoring voltage is lower than the mains voltage value and the on-site detection voltage is not lower than the mains voltage value, it is determined that there may be a user stealing electricity, and the voltage of the electricity meter is restored to the mains voltage value;

[0007] The system collects image information from the inlet of a user who may be stealing electricity, and verifies whether a fan speed controller or a broken neutral wire is present based on the image information. If a fan speed controller or a broken neutral wire is present, it determines that there is electricity theft at the target inlet and outputs an alarm message.

[0008] Preferably, the collection of electricity consumption data at the household terminal of the target to be detected includes at least the following methods: collecting the voltage value of the electricity meter remotely, or obtaining the displayed voltage value of the electricity meter, or measuring the voltage value of the live wire and neutral wire using a multimeter in voltage mode.

[0009] Preferably, the mains voltage is 220V.

[0010] Preferably, the method further includes determining that there are no users stealing electricity if the voltage value of the electricity meter is not less than the mains voltage value or there is no break in the neutral wire, and outputting a prompt message.

[0011] On the other hand, a system for detecting electricity theft in a fan speed controller with a neutral wire connection is also provided, for implementing the aforementioned method for detecting electricity theft in a fan speed controller with a neutral wire connection, including,

[0012] The data acquisition module is used to collect electricity consumption data from the inlet of the target to be tested;

[0013] The voltage judgment module is used to determine the voltage value of the electricity meter based on the electricity consumption data of the target household terminal, and to determine whether the voltage value of the electricity meter is lower than the mains voltage value, or whether the voltage value of the electricity meter is remotely monitored to be lower than the mains voltage value and on-site detected to be not lower than the mains voltage value; if the voltage value of the electricity meter is lower than the mains voltage value, or if the remotely monitored voltage is lower than the mains voltage value and on-site detected to be not lower than the mains voltage value, it is determined that there may be a user stealing electricity, and the voltage of the electricity meter is restored to the mains voltage value;

[0014] The image recognition module is used to collect image information of the inlet of a user who may be stealing electricity. Based on the image information, it can determine whether there is a fan speed controller or a broken neutral wire. If there is a fan speed controller or a broken neutral wire, it is determined that there is electricity theft at the target inlet and an alarm message is output.

[0015] Preferably, the data acquisition module is specifically used to acquire the voltage value of the electricity meter remotely, or to acquire the displayed voltage value of the electricity meter, or to measure the voltage value of the live wire and neutral wire using the voltage setting of a multimeter.

[0016] Preferably, the voltage judgment module is further configured to determine that there is no user stealing electricity if the voltage value of the electricity meter is not less than the mains voltage value or there is no break in the neutral wire, and output a prompt message.

[0017] In summary, implementing the embodiments of the present invention has the following beneficial effects:

[0018] The present invention provides a method and system for verifying electricity theft in fan speed controllers with neutral wires connected to the ground wire. This method and system focuses on verifying electricity theft in fan speed controllers with neutral wires connected to the ground wire. It avoids misleading staff on site and can effectively improve the efficiency and success rate of detecting this type of electricity theft. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, obtaining other drawings based on these drawings without creative effort still falls within the scope of the present invention.

[0020] Figure 1 This is a schematic diagram of the main operation process of a method for verifying electricity theft in a fan speed controller connected to the neutral wire, according to an embodiment of the present invention.

[0021] Figure 2 This is a logical diagram illustrating a method for verifying electricity theft in a fan speed controller connected to the neutral wire, as described in an embodiment of the present invention. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings.

[0023] like Figure 1 The diagram shown is a schematic representation of an embodiment of a method for detecting electricity theft in a fan speed controller connected to a neutral wire, provided by the present invention. This embodiment includes:

[0024] Step S1: Collect electricity consumption data from the target household terminal;

[0025] Step S2: Determine the voltage value of the electricity meter based on the electricity consumption data of the target household terminal, and determine whether the voltage value of the electricity meter is lower than the mains voltage value, or whether the voltage value of the electricity meter is lower than the mains voltage value during remote monitoring but not lower than the mains voltage value during on-site detection. If the voltage value of the electricity meter is lower than the mains voltage value, or if the voltage value is lower than the mains voltage value during remote monitoring but not lower than the mains voltage value during on-site detection, it is determined that there may be a user stealing electricity, and the voltage of the electricity meter is restored to the mains voltage value. If the voltage value of the electricity meter is not lower than the mains voltage value, it is determined that there is no user stealing electricity, and a prompt message is output. The mains voltage value is 220V. There are two situations here: one is that the voltage value of the electricity meter is lower than the mains voltage, and the other is that it is lower during remote monitoring but not lower during on-site inspection. This may be to cover up the truth, adjusting the voltage to the mains voltage value during the power supply company's working hours.

[0026] Step S3: Collect image information of the inlet terminal of the user who may be stealing electricity, and determine whether there is a fan speed controller or a broken neutral wire based on the image information. If there is a fan speed controller or a broken neutral wire, it is determined that there is electricity theft at the target inlet terminal, and an alarm message is output.

[0027] like Figure 2 As shown, in a specific embodiment of the present invention, regarding the investigation of electricity theft through a fan speed controller connected to the neutral wire, the fan speed controller is connected to the neutral wire circuit of the electricity meter. To facilitate operation by electricity thieves, the speed controller is often installed inside the household. One end of the speed controller runs through the neutral wire to the neutral wire outlet of the electricity meter, and the other end returns to the neutral busbar in the household distribution box. The neutral wires of the household appliances are re-laid and then return to the neutral busbar in the household distribution box. In this case, the household can use electricity normally, but can also lower the electricity meter voltage through the fan speed controller to reduce electricity bills. Fan speed controllers are divided into inductive, capacitive, and thyristor types. By adjusting the speed setting, the effective voltage of the fan is adjusted, thereby adjusting the fan speed. Similarly, after being connected to the electricity meter circuit, the effective voltage of the electricity meter can be adjusted (down to below 220V) by adjusting the speed setting, thus affecting normal metering.

[0028] In a specific embodiment, collecting electricity consumption data from the target household terminal includes at least three methods: remotely collecting the voltage value of the electricity meter, obtaining the displayed voltage value of the meter, or measuring the voltage values ​​of the live and neutral wires using a multimeter. This is mainly reflected in three aspects: first, the remotely collected electricity meter voltage value is less than 220V; second, the voltage value displayed on the smart meter screen is less than 220V; and third, the voltage value of the live and neutral wires measured using a multimeter is less than 220V. During on-site verification, it is possible that users stealing electricity may restore the electricity meter voltage to the mains voltage value. Therefore, it is necessary to check the integrity of the neutral wire entering the electricity meter.

[0029] According to the metering principle of electricity meters, when the neutral wire is connected, the meter's voltage is the mains voltage. To steal electricity, this method requires disconnecting the neutral wire. Therefore, on-site personnel check the neutral wire disconnection point in the meter box, which is usually wrapped with insulating electrical tape. After confirming the neutral wire is disconnected, it is basically determined that the electricity theft method involves connecting the neutral wire to a fan speed controller. The next step is to enter the house to locate the speed controller.

[0030] Specifically, home inspections can be conducted via remote imaging equipment to capture images and perform image recognition using a preset image recognition model, or through manual on-site inspection. Typically, a fan speed controller can be found in the home's distribution box, as the resident's neutral wire is led to the main switch in the distribution box, and then the neutral wire of the electrical equipment returns to the neutral busbar in the distribution box. The power is then cut off, and the electricity theft device is removed as evidence.

[0031] This invention also provides a system for detecting electricity theft in fan speed controllers with neutral wires connected to the neutral wire, to implement the aforementioned method for detecting electricity theft in fan speed controllers with neutral wires connected to the neutral wire, including:

[0032] The data acquisition module is used to collect electricity consumption data from the inlet of the target to be tested;

[0033] The voltage judgment module is used to determine the voltage value of the electricity meter based on the electricity consumption data of the target household terminal, and to determine whether the voltage value of the electricity meter is lower than the mains voltage value, or whether the voltage value of the electricity meter is remotely monitored to be lower than the mains voltage value and on-site detected to be not lower than the mains voltage value; if the voltage value of the electricity meter is lower than the mains voltage value, or if the remotely monitored voltage is lower than the mains voltage value and on-site detected to be not lower than the mains voltage value, it is determined that there may be a user stealing electricity, and the voltage of the electricity meter is restored to the mains voltage value;

[0034] The image recognition module is used to collect image information of the inlet of a user who may be stealing electricity. Based on the image information, it can determine whether there is a fan speed controller or a broken neutral wire. If there is a fan speed controller or a broken neutral wire, it is determined that there is electricity theft at the target inlet and an alarm message is output.

[0035] The data acquisition module is specifically used to acquire the voltage value of the electricity meter remotely, or to obtain the displayed voltage value of the electricity meter, or to measure the voltage value of the live wire and neutral wire using the voltage setting of a multimeter.

[0036] The voltage judgment module is also used to determine that there is no user stealing electricity if the voltage value of the electricity meter is not less than the mains voltage value or there is no break in the neutral wire, and output a prompt message.

[0037] It should be noted that the system described in the above embodiments corresponds to the method described in the above embodiments. Therefore, the parts of the system described in the above embodiments that are not described in detail can be obtained by referring to the content of the method described in the above embodiments, and will not be repeated here.

[0038] In summary, implementing the embodiments of the present invention has the following beneficial effects:

[0039] The present invention provides a method and system for verifying electricity theft in fan speed controllers with neutral wires connected to the ground wire. This method and system focuses on verifying electricity theft in fan speed controllers with neutral wires connected to the ground wire. It avoids misleading staff on site and can effectively improve the efficiency and success rate of detecting this type of electricity theft.

[0040] The above description discloses only preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Therefore, equivalent variations made in accordance with the claims of the present invention are still within the scope of the present invention.

Claims

1. A method for detecting electricity theft in a fan speed controller with the neutral wire connected, characterized in that, include: Collect electricity consumption data from the in-home terminal of the target device to be tested; The voltage value of the electricity meter is determined based on the electricity consumption data of the target household terminal, and it is determined whether the voltage value of the electricity meter is less than the mains voltage value, or whether the voltage value of the electricity meter is remotely monitored as less than the mains voltage value and on-site detected as not less than the mains voltage value. If the voltage value of the electricity meter is lower than the mains voltage value, or if the remote monitoring voltage is lower than the mains voltage value and the on-site detection voltage is not lower than the mains voltage value, it is determined that there may be a user stealing electricity, and the voltage of the electricity meter is restored to the mains voltage value. The system collects image information from the inlet of a user who may be stealing electricity, and verifies whether a fan speed controller or a broken neutral wire is present based on the image information. If a fan speed controller or a broken neutral wire is present, it determines that there is electricity theft at the target inlet and outputs an alarm message.

2. The method as described in claim 1, characterized in that, The collection of electricity consumption data at the target household terminal includes at least the following methods: collecting the voltage value of the electricity meter remotely, obtaining the displayed voltage value of the electricity meter, or measuring the voltage value of the live and neutral wires using a multimeter in voltage mode.

3. The method as described in claim 1, characterized in that, The mains voltage is 220V.

4. The method as described in claim 1, characterized in that, It also includes determining that there are no users stealing electricity if the voltage value of the electricity meter is not less than the mains voltage value or there is no break in the neutral wire, and outputting a prompt message.

5. A system for detecting electricity theft in a fan speed controller with a neutral wire connection, for implementing the method described in any one of claims 1-4, characterized in that, include, The data acquisition module is used to collect electricity consumption data from the inlet of the target to be tested; The voltage judgment module is used to determine the voltage value of the electricity meter based on the electricity consumption data of the target household terminal, and to determine whether the voltage value of the electricity meter is less than the mains voltage value, or whether the voltage value of the electricity meter is remotely monitored as less than the mains voltage value and on-site detected as not less than the mains voltage value. If the voltage value of the electricity meter is lower than the mains voltage value, or if the remote monitoring voltage is lower than the mains voltage value and the on-site detection voltage is not lower than the mains voltage value, it is determined that there may be a user stealing electricity, and the voltage of the electricity meter is restored to the mains voltage value. The image recognition module is used to collect image information of the inlet of a user who may be stealing electricity. Based on the image information, it can determine whether there is a fan speed controller or a broken neutral wire. If there is a fan speed controller or a broken neutral wire, it is determined that there is electricity theft at the target inlet and an alarm message is output.

6. The system as described in claim 5, characterized in that, The data acquisition module is specifically used to acquire the voltage value of the electricity meter remotely, or to obtain the displayed voltage value of the electricity meter, or to measure the voltage value of the live wire and neutral wire using the voltage setting of a multimeter.

7. The system as described in claim 6, characterized in that, The voltage judgment module is also used to determine that there is no user stealing electricity if the voltage value of the electricity meter is not less than the mains voltage value or there is no break in the neutral wire, and output a prompt message.

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