Structure of electric energy meter and data processing method

Abstract

The invention discloses a structure of an electric energy meter, and the structure comprises an electric meter box which is provided with a sampling signal transmission port and a metering data transmission port; the electric meter cover is arranged on one side of the electric meter box; the data processing module is arranged in the electric meter cover, and the data processing module is electrically connected with the sampling signal transmission port and the metering data transmission port respectively; and the communication module is arranged on the outer surface of the electric meter cover, and the communication module is electrically connected with the data processing module. According to the application, the data processing module is integrated in the electric meter cover, and direct acquisition and processing of sampling signals and metering data during operation of the electric meter are realized, so that ''meter-meter cover'' cooperative protection is realized, the internal state of the electric energy meter can be monitored in real time, and a relatively good electricity larceny prevention effect is achieved.

Description

Technical Field

[0001] This invention relates to the field of anti-theft monitoring technology, and in particular to the structure of an electricity meter and a data processing method. Background Technology

[0002] Electricity meters are one of the basic devices for power grid data acquisition. They are responsible for the acquisition, measurement and transmission of raw electrical energy data, and integrate functions such as information integration, analysis and optimization and information display.

[0003] Currently, in addition to basic electricity metering functions, to adapt to the use of smart grids and new energy sources, electricity meters also have bidirectional multi-rate metering functions, user-end control functions, and bidirectional data communication functions with multiple data transmission modes. While possessing many advantages, they also face potential risks of electricity theft.

[0004] Traditional electricity meters mostly use external anti-theft devices, which are not only complex to install, costly, and easily damaged, but also cannot monitor the internal status in real time, making it difficult to achieve a good anti-theft effect. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a structure for an electricity meter and a data processing method, the purpose of which is to monitor the internal state of the electricity meter in real time to achieve a better anti-theft effect.

[0006] According to a first aspect of the present invention, a structure for an electricity meter is provided, comprising: The meter box is equipped with a sampling signal transmission port and a metering data transmission port. The meter cover is located on one side of the meter box; A data processing module is located inside the meter cover, and the data processing module is electrically connected to the sampling signal transmission port and the metering data transmission port respectively. A communication module is disposed on the outer surface of the meter cover, and the communication module is electrically connected to the data processing module.

[0007] Furthermore, the data processing module includes a first circuit board and a second circuit board that are electrically connected. The first circuit board is equipped with a processor electrically connected to it, and the second circuit board is equipped with a power management module electrically connected to it; The second circuit board is electrically connected to the sampling signal transmission port and the metering data transmission port, respectively.

[0008] Furthermore, a sensor array is mounted on the first circuit board, and the sensor array is electrically connected to the processor.

[0009] Furthermore, the sensor array includes a magnetic field sensor receiver, and the meter box is equipped with a magnetic field sensor transmitter, with the magnetic field sensor receiver and the magnetic field sensor transmitter positioned corresponding to each other.

[0010] Furthermore, the meter cover is made of a composite material of polycarbonate and glass fiber.

[0011] According to a second aspect of the present invention, a data processing method is provided, applied to an electricity meter as described above, comprising: Acquire sampling signals and measurement data; The current battery level is obtained by calculating the sampled signal. The current power consumption data is compared with the metering data to obtain the comparison result; The comparison results are analyzed to generate online monitoring results, which are then uploaded to the backend monitoring system.

[0012] Furthermore, the calculation of the sampled signal to obtain the current power data includes: The sampled signal is converted into a digital signal using an analog-to-digital converter; The active power is obtained by performing power calculation on the digital signal. Based on the active power, determine the initial power data; The initial power data is calibrated according to a preset compensation coefficient to obtain the current power data.

[0013] Furthermore, the comparison result includes the parameter deviation between the current power consumption data and the metering data, and the analysis based on the comparison result to generate online monitoring results includes: The current operating status is determined based on the parameter deviation. The online monitoring results are generated based on the current operating status, the current power consumption data, and the metering data.

[0014] Furthermore, acquiring the sampling signal and measurement data includes: The sampling signal is acquired through voltage and current terminals; The measurement data is read through the data acquisition interface.

[0015] Furthermore, after analyzing the comparison results, generating online monitoring results, and uploading the online monitoring results to the background monitoring system, the method further includes: In response to the abnormal alarm command issued by the background monitoring system, the alarm module is controlled to issue an alarm signal.

[0016] The beneficial effects of this invention are as follows: This application integrates a data processing module inside the meter cover, enabling it to directly connect to the preset sampling signal transmission port and metering data transmission port on the meter box. This allows for the direct acquisition and processing of sampling signals and metering data during meter operation. Simultaneously, a communication module electrically connected to the data processing module is installed on the outer surface of the meter cover, constructing a complete link of "meter box data output - meter cover data processing - communication module remote transmission." This achieves collaborative protection between the meter and the meter cover, enabling real-time monitoring of the internal status of the electricity meter and achieving a good anti-theft effect. Attached Figure Description

[0017] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 This is an overall schematic diagram of the structure of an energy meter in one embodiment of this application; Figure 2 This is a schematic diagram of the internal structure of the meter cover in one embodiment of this application; Figure 3 This is a schematic diagram of the internal structure of the meter cover from another perspective in one embodiment of this application; Figure 4 This is a schematic diagram of the meter cover in one embodiment of this application.

[0018] Reference numerals: 1-Meter box; 11-Sampling transmission signal port; 12-Metering data transmission port; 2-Meter cover; 3-Data processing module; 31-First circuit board; 32-Second circuit board; 33-Power management module; 34-Processor; 4-Communication module; 5-Sensor array; 51-Magnetic field sensor receiver; 52-Magnetic field sensor transmitter. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solutions of this application, the application will be described in detail below with reference to the accompanying drawings and specific embodiments. Although the accompanying drawings and specific embodiments describe exemplary embodiments of the present invention, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein.

[0020] The terms "first," "second," and similar words used in this application do not indicate any order, quantity, or importance, but are merely used for distinction. The terms "including," and similar words used in this application mean that the element preceding the word encompasses the elements listed after the word, and do not exclude the possibility of including other elements. The technical solutions of this application are not limited to the execution order described in the embodiments. The steps in the execution order can be combined, decomposed, or their order can be changed, as long as the logical relationship of the execution content is not affected.

[0021] All terms used in this application (including technical or scientific terms) have the same meaning as understood by one of ordinary skill in the art to which this application pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein. Technologies and equipment known to one of ordinary skill in the art may not be discussed in detail, but where appropriate, such technologies and equipment should be considered part of the specification.

[0022] Traditional electricity meter covers are only physical protective structures without electrical circuits, making it impossible to monitor the internal status in real time. Existing anti-theft devices need to be externally mounted on the metering box, which is complex to install, costly, and easily damaged. At the same time, the separation of external monitoring equipment from the electricity meter leads to data asynchrony and difficulty in obtaining evidence, making it difficult to achieve a good anti-theft effect.

[0023] To address the aforementioned issues, this application provides a structure for an electricity meter that enables real-time monitoring of the meter's internal status and offers effective protection against electricity theft.

[0024] The structure of the electricity meter includes: a meter box 1, which is provided with a sampling signal transmission port 11 and a metering data transmission port 12; a meter cover 2, which is located on one side of the meter box 1; a data processing module 3, which is located inside the meter cover 2 and is electrically connected to the sampling signal transmission port 11 and the metering data transmission port 12 respectively; and a communication module 4, which is located on the outer surface of the meter cover 2 and is electrically connected to the data processing module 3.

[0025] In this embodiment, the meter box adopts a shell that conforms to the industry standards for electricity meters. Two independent terminal interfaces are pre-set on the front side wall: a sampling signal transmission port and a metering data transmission port. The sampling signal transmission port is connected to the sampling unit of the metering circuit inside the meter box, used to output sampling signals of the electrical parameters of the electricity meter in real time. The metering data transmission port is connected to the accumulation unit of the metering circuit inside the meter box, used to output the accumulated data of the measured electrical energy. Both interfaces adopt a universal terminal structure adapted to the internal circuitry of the electricity meter, facilitating connection with external modules.

[0026] In this embodiment, the meter cover adopts a cover plate structure adapted to the size of the meter box. It is fixed to the front of the meter box with screws. When closed, it can completely cover the opening on the front of the meter box, forming physical protection for the internal components. Its size and fixing method match the conventional design of the meter box, ensuring a stable installation.

[0027] In this embodiment, the data processing module adopts a miniaturized printed circuit board structure and is fixed to the center of the inside of the meter cover using high-temperature resistant double-sided adhesive, avoiding obstruction of the meter box interface or affecting the closing of the meter cover. The circuit board integrates a data receiving unit and a signal processing unit. Its input terminals are soldered to the terminals of the meter box's sampling signal transmission port and metering data transmission port via two sets of insulated wires, respectively. One set of wires corresponds to the transmission of voltage and current sampling signals, while the other set corresponds to the transmission of accumulated energy metering data, ensuring stable reception of both types of data.

[0028] Optionally, the connection between the data processing module and the two transmission ports of the meter box can be changed to a spring probe connector. The data processing module side is equipped with a probe female socket, and the meter box transmission port side is equipped with a probe male socket. The probe contact is achieved by the closing pressure of the meter cover, which improves the connection reliability and ease of disassembly and assembly.

[0029] In this embodiment, the communication module adopts a communication module adapted for remote data transmission. It is fixed to an unobstructed position on the outer surface of the meter cover with screws to ensure unimpeded signal transmission. The signal input terminal of the communication module is connected to the signal output terminal on the data processing module circuit board by passing a set of shielded wires through a pre-set wire hole on the meter cover. This enables electrical signal transmission between the data processing module and the communication module, ensuring the remote data upload function.

[0030] This embodiment integrates a data processing module inside the meter cover, allowing it to directly connect to the preset sampling signal transmission port and metering data transmission port on the meter box. This enables direct acquisition and processing of sampling signals and metering data during meter operation. Simultaneously, a communication module electrically connected to the data processing module is installed on the outer surface of the meter cover, constructing a complete link of "meter box data output - meter cover data processing - communication module remote transmission." This achieves collaborative protection between the meter and the meter cover, enabling real-time monitoring of the internal status of the electricity meter and achieving a good anti-theft effect.

[0031] In some optional implementations of this embodiment, the data processing module 3 includes a first circuit board 31 and a second circuit board 32 electrically connected; a processor 34 electrically connected to the first circuit board 31 is mounted on the first circuit board 31, and a power management module 33 electrically connected to the second circuit board 32 is mounted on the second circuit board 32; the second circuit board 32 is electrically connected to the sampling signal transmission port 11 and the metering data transmission port 12, respectively.

[0032] In this embodiment, the core of the data processing module consists of two independent insulating substrates, including a first circuit board and a second circuit board. The first circuit board is fixed to the inside of the meter cover near the communication module using self-tapping screws (with insulating washers). A processor is soldered onto the first circuit board, and its power pins are connected to the power output terminal of the second circuit board via insulated copper wires. Its data pins are connected to the signal output terminal of the second circuit board via ribbon cables, enabling power and data transmission. The second circuit board is attached to the inside of the meter cover near the meter box's transmission port using high-temperature resistant double-sided adhesive. A power management module is soldered onto the second circuit board to convert the electrical energy provided by the meter box into an appropriate voltage. The input terminal of the power management module is connected to the internal voltage terminal of the meter box via copper core wires (with insulating sleeves). Its output is divided into two paths: one powering the processor on the first circuit board, and the other powering its own onboard signal interface. The second circuit board has two independent signal terminals, which are soldered to the sampling signal transmission port and the metering data transmission port of the meter box via shielded wires, respectively. The shielding layer is grounded to reduce signal interference. The first and second circuit boards are connected by a flexible ribbon cable. The two ends of the ribbon cable are inserted into the pin headers of the two boards and soldered to ensure stable transmission of data and control signals.

[0033] In some optional implementations of this embodiment, a sensor array 5 is mounted on the first circuit board 31, and the sensor array 5 is electrically connected to the processor 34.

[0034] In one embodiment, a sensor array is integrated on a first circuit board and includes three core sensors distributed in a dispersed manner to avoid mutual interference. These include: a humidity sensor: soldered to the side of the first circuit board near the meter box terminal, used to collect humidity data inside the meter cover; its data pin is soldered to the corresponding communication pin of the processor via copper wire, and its power supply pin is connected to the power supply terminal of the first circuit board; a magnetic field sensor: soldered to the middle of the first circuit board, used to collect magnetic field strength data inside the meter cover; its output pin is soldered to the analog signal acquisition pin of the processor, its power supply pin is connected to the power supply terminal of the first circuit board, and its ground pin is connected to the ground plane of the first circuit board; and a temperature sensor: soldered to the first circuit board near the edge of the meter cover, assisting in monitoring the temperature of a local area inside the meter cover; its data pin is soldered to the general purpose input / output pin of the processor, and its ground pin is connected to the ground plane of the first circuit board. All sensor ground pins are uniformly connected to the ground plane of the first circuit board to ensure the stability of the acquired signals and reduce interference.

[0035] In some optional implementations of this embodiment, the sensor array 5 includes a magnetic field sensor receiver 51, and a magnetic field sensor transmitter 52 is installed on the meter box, with the magnetic field sensor receiver 51 and the magnetic field sensor transmitter 52 corresponding to each other.

[0036] In this embodiment, the magnetic field sensor receiver is located in the middle of the first circuit board. After the meter cover is closed, the receiver corresponds to the transmitter on the side of the meter box, and its connection to the processor remains unchanged. The magnetic field sensor transmitter uses a sensor capable of generating a stable magnetic field and is fixed to the inside of the meter box, corresponding to the receiver, using self-tapping screws (with metal washers). After the meter cover is closed, the centers of the transmitter and receiver are aligned, ensuring that the receiver can effectively acquire the reference magnetic field generated by the transmitter. The power supply pin of the transmitter is connected to the adapter voltage terminal of the meter box through an insulated wire, and the grounding pin is soldered to the metal shell of the meter box to achieve reliable grounding. The transmitter only needs to generate a stable magnetic field and does not need to output a data signal.

[0037] Optionally, a reference magnetic field strength range generated by the transmitter can be preset inside the processor as a benchmark for determining whether the magnetic field is abnormal.

[0038] In some optional implementations of this embodiment, the meter cover 2 is made of a composite material of polycarbonate and glass fiber.

[0039] In this embodiment, the meter cover is a rectangular cover plate that matches the size of the meter box. It is made of a composite material of polycarbonate and glass fiber through injection molding, meeting the electrical insulation and protection requirements of the meter casing. Specifically, the composite material is made of PC resin and glass fiber mixed at high speed and then injection molded to ensure uniform material properties and meet the requirements for explosion-proof and impact resistance.

[0040] Optionally, after the meter cover is formed, a transparent anti-UV coating is sprayed on it to improve its anti-aging performance during outdoor use and prevent discoloration or performance degradation caused by long-term sun exposure.

[0041] To address the aforementioned issues, this application also provides a data processing method applied to the electricity meter described above, which enables real-time monitoring of the internal status of the electricity meter to achieve a better anti-theft effect.

[0042] The data processing method includes: Acquire sampling signals and measurement data; The current battery level is obtained by calculating the sampled signal. The current power consumption data is compared with the metering data to obtain the comparison result; The comparison results are analyzed to generate online monitoring results, which are then uploaded to the backend monitoring system.

[0043] In this embodiment, the sampling signal comes from the sampling signal transmission port and can be sampled through the voltage and current terminals of the energy meter. The metering data comes from the metering data transmission port and can be directly read from the energy meter itself. The energy meter's data processing module is electrically connected to both the sampling signal transmission port and the metering data transmission port. After obtaining the sampling signal and metering data, it calculates the sampling signal to convert the "raw sampling signal" into "quantifiable energy data," obtaining the current energy data, including key parameters such as voltage, current, power, and active energy. The data processing module compares the current energy data with the metering data to obtain comparison results. These results include parameter deviations, such as: voltage deviation (e.g., actual voltage is more than 10% lower than the rated value), current deviation (e.g., sampling current is much lower than metering current, which may indicate "current shunting for electricity theft"), power deviation (e.g., sampling power does not match metering power, which may indicate "magnetic interference for electricity theft"), and energy deviation (excessive difference between sampling energy and metering energy within a short period of time). After obtaining the comparison results, the data processing module analyzes the results, generates online monitoring results, and uploads them to the backend monitoring system. This determines whether the parameter deviation is within a preset reasonable threshold range. If the deviation is within this range, the meter's current operating status is considered normal, and the current operating status, current electricity consumption data, and metering data are uploaded to the backend monitoring system as online monitoring results. If the parameter deviation is outside this range, and phenomena such as abnormally low current or power mismatch exist, the meter's current operating status is considered abnormal. In this case, the current operating status, current electricity consumption data, and metering data are uploaded to the backend monitoring system as online monitoring results. Because the current operating status is abnormal, an abnormal warning can be triggered in the backend monitoring system, directly indicating "suspected electricity theft" or equipment malfunction.

[0044] This application directly acquires and processes the sampling signals and metering data during the operation of the electricity meter through a data processing module integrated inside the meter cover. Based on the deviation between the data, the online monitoring results of the electricity meter are obtained, realizing the collaborative protection of "meter and meter cover". It can monitor the internal status of the electricity meter in real time and achieve a good anti-theft effect.

[0045] In some optional implementations of this embodiment, the comparison result includes the parameter deviation between the current power consumption data and the metering data, and the analysis based on the comparison result to generate the online monitoring result includes: The current operating status is determined based on the parameter deviation. The online monitoring results are generated based on the current operating status, the current power consumption data, and the metering data.

[0046] In some optional implementations of this embodiment, the acquisition of the sampling signal and measurement data includes: The sampling signal is acquired through voltage and current terminals; The measurement data is read through the data acquisition interface.

[0047] In some optional implementations of this embodiment, after analyzing the comparison results, generating online monitoring results, and uploading the online monitoring results to the background monitoring system, the method further includes: In response to the abnormal alarm command issued by the background monitoring system, the alarm module is controlled to issue an alarm signal.

[0048] In this embodiment, the abnormal alarm command is issued by the background monitoring system and points to "suspected electricity theft". The electricity meter is equipped with an alarm module. When the abnormal alarm command is received, the processor of the electricity meter controls the alarm module to issue an alarm signal. The alarm signal includes audible and visual alarms, such as flashing red warning lights and buzzer sounds, which can force the possible electricity theft to stop.

[0049] It should be noted that the processor in the embodiments of this application can be a microcontroller unit (MCU), microprocessor unit (MPU), system on chip (SOC), digital signal processor (DSP), graphics processing unit (GPU), or other integrated circuits used to execute program instructions, process data, and control system operation.

[0050] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the invention may be practiced without these specific details. Similarly, for the sake of brevity and to aid in understanding one or more aspects of the invention, in the description of exemplary embodiments of the invention above, various features of the embodiments are sometimes grouped together in a single embodiment, figure, or description thereof. The claims, which follow the detailed description, are hereby expressly incorporated into that detailed description, wherein each claim itself is a separate embodiment of the invention.

[0051] Those skilled in the art will understand that the modules in the apparatus of the embodiments can be adaptively changed and placed in one or more apparatuses different from those of the embodiments. Modules, units, or components in the embodiments can be combined into a single module, unit, or component, and further, they can be divided into multiple sub-modules, sub-units, or sub-components, except that at least some of such features and / or processes or units are mutually exclusive.

[0052] It should be noted that the above embodiments are illustrative of the invention and not restrictive, and that those skilled in the art can devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses should not be construed as limiting the claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention can be implemented by means of hardware comprising several different elements and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by the same item of hardware.

Claims

1. A structure of an electric energy meter, characterized by comprising: The utility model relates to an electric meter cover and a data processing method thereof, and belongs to the field of electric meter monitoring. It comprises: an electric meter box, which is provided with a sampling signal transmission port and a metering data transmission port; an electric meter cover, which is arranged on one side of the electric meter box; a data processing module, which is arranged in the electric meter cover and is electrically connected with the sampling signal transmission port and the metering data transmission port respectively; 2. The structure of an electric energy meter according to claim 1, characterized by a communication module, which is arranged on the outer surface of the electric meter cover and is electrically connected with the data processing module. The data processing module comprises a first circuit board and a second circuit board which are electrically connected. The first circuit board is provided with a processor which is electrically connected therewith, and the second circuit board is provided with a power management module which is electrically connected therewith.

3. The structure of the electric energy meter according to claim 2, characterized in that, The second circuit board is electrically connected with the sampling signal transmission port and the metering data transmission port respectively.

4. The structure of the electric energy meter according to claim 3, characterized in that, The first circuit board is provided with a sensor array which is electrically connected with the processor.

5. The structure of the electric energy meter according to claim 1, characterized by The sensor array comprises a magnetic field sensor receiving end, and the electric meter box is provided with a magnetic field sensor transmitting end, and the position of the magnetic field sensor receiving end corresponds to that of the magnetic field sensor transmitting end.

6. A data processing method applied to the electric energy meter according to any one of claims 1 to 5, characterized in that, The electric meter cover is made of a composite material of polycarbonate and glass fiber. It comprises: acquiring a sampling signal and metering data; calculating the sampling signal to obtain current electric quantity data; comparing the current electric quantity data with the metering data to obtain a comparison result; 7. The data processing method according to claim 6, characterized in that, analyzing the comparison result to generate an online monitoring result and uploading the online monitoring result to a background monitoring system. The calculation of the sampling signal to obtain current electric quantity data comprises: converting the sampling signal into a digital signal through an analog-to-digital converter; calculating the power of the digital signal to obtain active power; determining initial electric quantity data according to the active power; 8. The data processing method according to claim 6, characterized in that, calibrating the initial electric quantity data according to a preset compensation coefficient to obtain the current electric quantity data. The comparison result comprises a parameter deviation between the current electric quantity data and the metering data, and the analysis of the comparison result to generate an online monitoring result comprises: determining a current operating state according to the parameter deviation; 9. The data processing method according to claim 6, characterized in that, generating the online monitoring result according to the current operating state, the current electric quantity data and the metering data. The acquisition of the sampling signal and metering data comprises: collecting the sampling signal through voltage terminals and current terminals; 10. The data processing method according to any one of claims 6 to 9, characterized in that, reading the metering data through a data acquisition interface. After the analysis of the comparison result to generate an online monitoring result and the uploading of the online monitoring result to a background monitoring system, the method further comprises: responding to an abnormal alarm instruction issued by the background monitoring system to control an alarm module to issue an alarm signal.

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