A three-phase wireless network smart meter circuit

Abstract

The utility model discloses a three -phase wireless network intelligent electric meter circuit, including power supply circuit, voltage circuit, acquisition circuit no.

Description

Technical Field

[0001] This utility model relates to the field of smart meter technology, specifically a three-phase wireless network smart meter circuit. Background Technology

[0002] Smart meters are one of the basic devices for data acquisition in smart grids. They are responsible for the collection, measurement, and transmission of raw electrical energy data and are the foundation for information integration, analysis and optimization, and information presentation.

[0003] However, the existing smart meter data acquisition is done through the connection between the current transformer and the smart meter, which is a one-to-one method. This increases the hardware cost when using smart meters, and also requires multiple sets of hardware for later maintenance and on-site operation, increasing the investment of human and material resources. Summary of the Invention

[0004] The purpose of this utility model is to provide a three-phase wireless network smart meter circuit to solve the problem mentioned in the background art: the existing smart meter data acquisition is connected to the smart meter through the current transformer, which is a one-to-one method. This increases the hardware cost when using the smart meter, and multiple sets of hardware are required for later maintenance and on-site operation, increasing the investment of human and material resources.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a three-phase wireless network smart meter circuit, comprising a power supply circuit, a voltage circuit, a first acquisition circuit, a second acquisition circuit, a third acquisition circuit, a first current circuit, a second current circuit, a third current circuit, a central processing chip, and a transparent transmission chip, characterized in that: the power supply circuit is connected to the voltage circuit, the voltage circuit is respectively connected to the first acquisition circuit, the second acquisition circuit, and the third acquisition circuit, the IP terminals of the first acquisition circuit, the second acquisition circuit, and the third acquisition circuit are respectively connected to the IP terminals of the first current circuit, the second current circuit, and the third current circuit, the USART terminals of the first acquisition circuit, the second acquisition circuit, and the third acquisition circuit are respectively connected to the three corresponding USART terminals of the central processing chip, and the M terminal of the central processing chip is connected to the M terminal of the transparent transmission chip.

[0006] Preferably, the current circuit one, current circuit two, and current circuit three adopt the same structural design, and the acquisition circuit one, acquisition circuit two, and acquisition circuit three adopt the same structural design.

[0007] Preferably, terminals 1 and 2 of current circuit one, current circuit two and current circuit three are all connected to the current transformer.

[0008] Beneficial effects

[0009] Compared with existing technologies, the beneficial effects of this utility model are as follows:

[0010] By adopting the above structural scheme, a smart meter is equipped with three acquisition circuits, and the current of three different circuits is collected through the three acquisition circuits. This reduces the number of smart meters used, effectively reduces the cost of use, and effectively solves the problems mentioned in the background technology. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the voltage circuit structure of this utility model;

[0013] Figure 3 This is a schematic diagram of the current circuit result of this utility model;

[0014] Figure 4 This is a schematic diagram of the data acquisition circuit structure of this utility model;

[0015] Figure 5 This is a schematic diagram of the central processing chip structure of this utility model;

[0016] Figure 6 This is a schematic diagram of the transparent transmission chip structure of this utility model.

[0017] The correspondence between the labels and component names in the attached figures is as follows:

[0018] 11. Power supply circuit; 12. Voltage circuit; 21. Current circuit one; 22. Current circuit two;

[0019] 23. Current circuit three; 31. Data acquisition circuit one; 32. Data acquisition circuit two; 33. Data acquisition circuit three;

[0020] 41. Central processing chip; 51. Transparent transmission chip. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "front," "rear," "inner," "outer," "vertical," and "horizontal," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] like Figure 1-6 This is a schematic diagram of a preferred embodiment of a three-phase wireless network smart meter circuit of the present invention. In this embodiment, a three-phase wireless network smart meter circuit includes a power supply circuit 11, a voltage circuit 12, a first acquisition circuit 31, a second acquisition circuit 32, a third acquisition circuit 33, a first current circuit 21, a second current circuit 22, a third current circuit 23, a central processing chip 41, and a transparent transmission chip 51. The power supply circuit 11 is connected to the voltage circuit 12. The voltage circuit 12 is connected to the first acquisition circuit 31, the second acquisition circuit 32, and the third acquisition circuit 33. The IP terminals of the first acquisition circuit 31, the second acquisition circuit 32, and the third acquisition circuit 33 are respectively connected to the IP terminals of the first current circuit 21, the second current circuit 22, and the third current circuit 23. The USART terminals of the first acquisition circuit 31, the second acquisition circuit 32, and the third acquisition circuit 33 are respectively connected to the three corresponding USART terminals of the central processing chip 41. The M terminal of the central processing chip 41 is connected to the M terminal of the transparent transmission chip 51.

[0024] In this embodiment, the current circuit 1 21, the current circuit 22 and the current circuit 3 23 adopt the same structural design, and the acquisition circuit 1 31, the acquisition circuit 2 32 and the acquisition circuit 3 33 adopt the same structural design.

[0025] In this embodiment, terminals 1 and 2 of current circuit 1 21, current circuit 22 and current circuit 3 23 are all connected to the current transformer.

[0026] Working principle

[0027] In practical use, when the smart meter is powered on, the voltage is stabilized through the power supply circuit 11 and the current voltage circuit 12. After voltage stabilization, the current flows through current circuits 21, 22, and 23, which are connected to acquisition circuits 31, 32, and 33. Current transformers are connected to terminals 1 and 2 of each of these circuits. The currents from three different circuits are collected by the three current transformers and fed back to the central processing chip 41 for data processing via the acquisition chips in acquisition circuits 31, 32, and 33. The central processing chip 41 then transmits the processed data to the transparent transmission chip 51, which connects to the operator's device to view the collected data.

[0028] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A three-phase wireless network smart meter circuit, comprising a power supply circuit (11), a voltage circuit (12), a first acquisition circuit (31), a second acquisition circuit (32), a third acquisition circuit (33), a first current circuit (21), a second current circuit (22), a third current circuit (23), a central processing chip (41), and a transparent transmission chip (51), characterized in that: The power supply circuit (11) is connected to the voltage circuit (12). The voltage circuit (12) is connected to the first acquisition circuit (31), the second acquisition circuit (32), and the third acquisition circuit (33). The IP terminals of the first acquisition circuit (31), the second acquisition circuit (32), and the third acquisition circuit (33) are connected to the IP terminals of the first current circuit (21), the second current circuit (22), and the third current circuit (23), respectively. The USART terminals of the first acquisition circuit (31), the second acquisition circuit (32), and the third acquisition circuit (33) are connected to the three corresponding USART terminals of the central processing chip (41), respectively. The M terminal of the central processing chip (41) is connected to the M terminal of the transparent transmission chip (51).

2. The three-phase wireless network smart meter circuit according to claim 1, characterized in that: The current circuit one (21), current circuit two (22) and current circuit three (23) adopt the same structural design, and the acquisition circuit one (31), acquisition circuit two (32) and acquisition circuit three (33) adopt the same structural design.

3. The three-phase wireless network smart meter circuit according to claim 2, characterized in that: Terminals 1 and 2 of the current circuits 1 (21), 2 (22), and 3 (23) are all connected to the current transformer.

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