Intelligent uninterrupted meter changing device
The intelligent uninterrupted meter replacement device uses the input unit, output unit and identification module to identify the phase relationship, so as to realize the accurate uninterrupted replacement of the electricity meter, solve the problem of wiring errors in the replacement of electricity meters, and improve the reliability of users' electricity use and the safety of the replacement process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BAODING NEW YUNDA ELECTRIC EQUIP
- Filing Date
- 2025-08-13
- Publication Date
- 2026-07-21
AI Technical Summary
Existing technology cannot replace electricity meters without interrupting power supply, leading to a decrease in the reliability of electricity use for users, especially for some special users who cannot replace electricity meters during power outages.
The device employs an intelligent uninterrupted meter replacement system, which includes an input unit, an output unit, a DSP energy calculation module, an ARM application control module, a bypass relay group, a live and neutral wire identification module, and a phase sequence identification module. By identifying the phase relationship between the input and output lines, it ensures the accuracy of the wiring and uses the bypass relay group to bypass the circuit, thus enabling uninterrupted meter replacement.
It enables accurate, uninterrupted replacement of electricity meters, avoids wiring errors, ensures the reliability of users' electricity use and the safety of the meter replacement process, and ensures no loss of accumulated electricity.
Smart Images
Figure CN224536064U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electricity meter replacement technology, and in particular to an intelligent uninterrupted meter replacement device. Background Technology
[0002] Electricity meters are mandatory metering and billing tools certified by the state and need to be replaced periodically. Replacing meters by cutting off power disrupts users' normal electricity use, leading to a high complaint rate. Some special users cannot have their power cut off and are not suitable for meter replacement during power outages.
[0003] In recent years, users have placed increasingly higher demands on the reliability of electricity supply. Unobtrusive operation has become an important issue for power supply departments to improve service quality. The regular replacement of old and new electricity meters urgently needs to be carried out without power interruption. However, there is currently no intelligent uninterrupted meter replacement device that can improve the reliability of users' electricity supply. Therefore, we designed an intelligent uninterrupted meter replacement device. Utility Model Content
[0004] To overcome the technical defects of the existing technology, this utility model provides an intelligent uninterrupted meter replacement device that identifies the correspondence between the input phase (A / B / C) and the output phase; the input and output phases correspond completely, avoiding wiring errors.
[0005] The technical solution adopted by this utility model is: an intelligent uninterrupted power meter replacement device, including an input unit, an output unit, a DSP energy calculation module, an ARM application control module, a bypass relay group, a live and neutral wire identification module, and a phase sequence identification module;
[0006] The input unit and output unit are connected via a bypass relay group. The input terminal of the DSP energy calculation module is connected to the input unit and the output unit. The DSP energy calculation module is connected to the ARM application control module for data interaction. The control output terminal of the ARM application control module is connected to the bypass relay group. The input unit is connected to the input line of the energy meter being replaced on site, and the output unit is connected to the output line of the energy meter being replaced. The phase sequence identification module is connected to the ARM application control module.
[0007] The live / neutral wire identification module is connected to the ARM application control module. The live / neutral wire identification module is used to detect the live or neutral wire of the input wire of the input unit and the live or neutral wire of the output wire of the output unit. The ARM application control module controls the on / off of the relays in the bypass relay group according to the characteristics of the live or neutral wires of the input wire of the input unit and the output wire of the output unit, thereby controlling the connection between the input unit and the output unit to form a bypass circuit for the input and output lines of the meter being replaced, so as to realize meter replacement without power interruption.
[0008] Preferably, the phase sequence identification module is used to identify the phase sequence of the A / B / C phase lines of the input and output units; the ARM application control module controls the on / off of the relays in the bypass relay group according to the phase characteristics of the A / B / C phase lines of the input and output units, thereby controlling the connection between the input and output units to form a bypass circuit for the input and output lines of the meter being replaced, thus achieving uninterrupted meter replacement.
[0009] Preferably, the input unit is provided with an input line, and the output unit is provided with an output line of the same number as the input unit, and the multiple input lines and output lines are connected in phase correspondingly via a bypass relay group; the input line and the output line are provided with a power indicator light.
[0010] Preferably, the system further includes a voltage acquisition module and a current acquisition module connected to the DSP power calculation module, wherein the voltage acquisition module is used to acquire voltage of the access line and the outgoing line, and the current acquisition module is used to acquire current of the access line.
[0011] Preferably, the ARM application control module further includes a communication module, and the ARM application control module is connected to a database.
[0012] The beneficial effects of this utility model are as follows: the input unit and the output unit are connected via a bypass relay group, and a live / neutral wire identification module and a phase sequence identification module are set up. These modules can detect the live or neutral wires of the input and output units, as well as the phase sequence of the input and output units. Based on the various wiring between the input and output phases and the various connections between the input and output lines, phase correspondence is achieved, ensuring the accuracy of the wiring between the input and output lines of the replaced energy meter on site. The ARM application control module controls the on / off state of the relays in the bypass relay group based on the characteristics of the live or neutral wire of the input wire of the input unit, thereby controlling the connection between the input and output units to form a circuit bypass for the replaced energy meter. It autonomously identifies the correspondence between the input A / B / C / connection phases and the output phases; the input and output phases correspond completely, avoiding wiring errors. Attached Figure Description
[0013] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is the electrical schematic diagram of the DSP power calculation module of this utility model;
[0016] Figure 3 This is the electrical schematic diagram of the ARM application control module of this utility model.
[0017] Explanation of reference numerals in the attached diagram: 1. Input line unit; 101. Input line; 2. Output line unit; 201. Output line; 4. DSP power calculation module; 5. ARM application control module; 6. Bypass relay group; 7. Neutral and live wire identification module; 8. Phase sequence identification module; 9. Voltage acquisition module; 10. Current acquisition module; 11. Communication module; 12. Database; 13. Power-on indicator light. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the various embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this utility model to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.
[0019] like Figures 1 to 3 As shown, this embodiment provides an intelligent uninterrupted meter replacement device, including an input unit 1, an output unit 2, a DSP energy calculation module 4, an ARM application control module 5, a bypass relay group 6, a live / neutral wire identification module 7, and a phase sequence identification module 8; characterized in that:
[0020] The input unit 1 and output unit 2 are connected via bypass relay group 6. The input terminal of the DSP energy calculation module 4 is connected to the input unit 1 and output unit 2. The DSP energy calculation module 4 is connected to the ARM application control module 5 for data interaction. The control output terminal of the ARM application control module is connected to the bypass relay group 6. The input unit 1 is connected to the input line of the energy meter being replaced on site, and the output unit 2 is connected to the output line of the energy meter being replaced. The phase sequence identification module 8 is connected to the ARM application control module 5.
[0021] The live / neutral wire identification module 7 is connected to the ARM application control module 5. The live / neutral wire identification module 7 is used to detect the live or neutral wire of the input wire of the input unit 1 and the live or neutral wire of the output wire of the output unit 2. The ARM application control module 5 controls the on / off state of the relays in the bypass relay group 6 according to the characteristics of the live or neutral wires of the input wire of the input unit 1 and the output wire of the output unit 2, thereby controlling the connection between the input unit 1 and the output unit 2 to form a bypass circuit for the input and output lines of the meter being replaced, so as to realize meter replacement without power interruption.
[0022] Figure 2The diagram shows the electrical schematic of the DSP power calculation module 4 of this invention. The DSP power metering module 4 includes: a DSP digital signal processor U1, an analog-to-digital converter U2, a dynamic memory U3, and a programmable logic device U4. U1 communicates with the ARM application control module 5 through an SPI interface.
[0023] It also includes a voltage acquisition module 9 and a current acquisition module 10 connected to the DSP power metering module 4. The voltage acquisition module 9 is used to acquire the voltage of the input unit 1 and the output unit 2, and the current acquisition module 10 is used to acquire the current of the input unit 1. The acquired data is used to calculate power, and at the same time, it communicates with the ARM application control module 5 through SPI to transmit the sampling data.
[0024] Figure 3 This is the electrical schematic diagram of the ARM application control module 5 of this utility model. The ARM application control module 5 includes: an ARM control manager U5, a dynamic memory U6, a non-volatile memory U7, a color LCD display (LCD), a USB flash drive interface (USB1), a keyboard interface (KEY1), and Bluetooth / WiFi communication. U5 controls the bypass relay group through the IIC interface and communicates with the DSP metering calculation module 4 through the SPI interface.
[0025] It also includes a phase sequence identification module 8 connected to the ARM application control module 5. The phase sequence identification module 8 is used to identify the phase sequence of the input unit 1 and the output unit 2. The ARM application control module 5 controls the on / off of the relays in the bypass relay group 6 according to the phase characteristics of the input unit 1 and the output unit 2, and controls the input unit 1 and the output unit 2 to connect to form a circuit bypass for the replaced meter. The incoming line unit 1 and outgoing line unit 2 are connected via a bypass relay group, and a live / neutral wire identification module 7 and a phase sequence identification module 8 are set up. This allows for the detection of the live or neutral wires of the incoming line unit 1 and outgoing line unit 2, as well as the phase sequence detection of the incoming line unit 1 and outgoing line unit 2. Based on the various wiring combinations between the incoming and outgoing phases and between the incoming and outgoing lines, the corresponding wiring combination is selected to ensure the accuracy of the wiring between the incoming and outgoing lines of the replaced energy meter. The ARM application control module 5 controls the on / off state of the relays in the bypass relay group based on the phase between the input wire of the incoming line unit 1 and the output wire of the outgoing line unit 2, as well as the characteristics of the live or neutral wire. This controls the connection between the incoming line unit 1 and outgoing line unit 2 to form a circuit bypass for the replaced energy meter. It autonomously identifies the correspondence between the A / B / C / connection phases of the incoming line and the phases of the outgoing line. The phase relationship between the incoming and outgoing lines is completely consistent, avoiding wiring errors.
[0026] This is feasible for the technicians, so the specific circuit structure will not be described in detail here.
[0027] The input unit 1 is provided with an input line 101, and the output unit 2 is provided with an output line 201 with the same number of connecting lines as the input unit 1. The multiple input lines and output lines are connected in a corresponding manner according to the phase relationship via the bypass relay group 6. The input line 101 and the output line 201 are provided with a power indicator light 13, which facilitates the correspondence between the input line 101 and the corresponding output line 201 and provides indication. This ensures that the phase relationship between the input and output lines is completely corresponding and avoids wiring errors.
[0028] It also includes a voltage acquisition module 9 and a current acquisition module 10 connected to the DSP power calculation module 5. The voltage acquisition module 9 is used to acquire the voltage of the access line 101 or the outgoing line 201, and the current acquisition module 10 is used to acquire the current of the access line 101. In this way, voltage and current monitoring are performed during the meter replacement process to ensure the safety and efficiency of the meter replacement operation without power interruption; the cumulative power during the meter replacement period is calculated to achieve zero power loss during the meter replacement process.
[0029] The ARM application control module 5 is also equipped with a network communication module 11, and the ARM application control module is connected to the communication module 11 and the database 12. In this way, a database can be created according to the various wiring between the incoming phase, the outgoing phase, and the incoming and outgoing lines, and a relay switching combination scheme can be formulated to realize meter replacement in any wiring state. The meter replacement data can also be uploaded to other devices through the communication module.
[0030] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of the present invention.
Claims
1. An intelligent uninterrupted meter replacement device, characterized in that: It includes an input line unit (1), an output line unit (2), a DSP power calculation module (4), an ARM application control module (5), a bypass relay group (6), a live / neutral wire identification module (7), and a phase sequence identification module (8); characterized in that: The input unit (1) and output unit (2) are connected via a bypass relay group (6). The input terminal of the DSP energy calculation module (4) is connected to the input unit (1) and output unit (2). The DSP energy calculation module (4) is connected to the ARM application control module (5) for data interaction. The control output terminal of the ARM application control module (5) is connected to the bypass relay group (6). The input unit (1) is connected to the input line of the energy meter being replaced on site. The output unit (2) is connected to the output line of the energy meter being replaced. The phase sequence identification module (8) is connected to the ARM application control module (5). The live / neutral wire identification module (7) is connected to the ARM application control module (5). The live / neutral wire identification module (7) is used to detect the live or neutral wire of the input wire of the input unit (1) and the live or neutral wire of the output wire of the output unit (2). The ARM application control module (5) controls the on / off of the relays in the bypass relay group (6) according to the characteristics of the live or neutral wires of the input wire of the input unit (1) and the output wire of the output unit (2), and controls the connection between the input unit (1) and the output unit (2) to form a bypass circuit for the input and output wires of the meter being replaced, so as to realize the meter replacement without power interruption.
2. The intelligent uninterrupted power meter replacement device according to claim 1, characterized in that: The phase sequence identification module (8) is used to identify the phase sequence of the A / B / C phase lines of the input unit (1) and the output unit (2); the ARM application control module (5) controls the on / off of the relays in the bypass relay group (6) according to the phase characteristics of the A / B / C phase lines of the input unit (1) and the output unit (2), and controls the connection between the input unit (1) and the output unit (2) to form a bypass circuit for the input and output lines of the meter being replaced, so as to realize the meter replacement without power interruption.
3. The intelligent uninterrupted power meter replacement device according to claim 1, characterized in that: The input unit (1) is provided with an input line (101), and the output unit (2) is provided with an output line (201) with the same number of connecting lines as the input unit (1). Multiple input lines and output lines are connected in phase correspondingly via a bypass relay group (6). An on indicator light (13) is provided on the input line (101) and the output line (201).
4. The intelligent uninterrupted power meter replacement device according to claim 3, characterized in that: It also includes a voltage acquisition module (9) and a current acquisition module (10) connected to the DSP power calculation module (4), wherein the voltage acquisition module (9) is used to acquire voltage of the access line (101) and the output line (201), and the current acquisition module (10) is used to acquire current of the access line (101).
5. The intelligent uninterrupted power meter replacement device according to claim 1, characterized in that: The ARM application control module (5) is also provided with a communication module (11), and the ARM application control module (5) is connected to a database (12).