Remote electric energy quality monitoring device
By designing a remote power quality monitoring device, which employs a dual-core DSP sampling circuit and a 4G communication module, real-time online monitoring of power quality in the oilfield power grid has been achieved. This solves the problem of untimely power quality monitoring in existing technologies and improves the accuracy of analysis and evaluation as well as power reliability.
Patent Information
- Application Number
- CN202520534793.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-03-25
AI Technical Summary
The current power quality monitoring of oilfield power grids mainly relies on offline manual methods, which result in unrepresentative data and an inability to achieve timely online monitoring of power quality, thus affecting the reliability of power supply and the accuracy of analysis and diagnosis in oil development and production.
Design a remote power quality monitoring device, including a main housing, a high-voltage input connector, a switch, an indicator light circuit board, a GPS antenna, a communication antenna, a main circuit board, a control circuit module, etc. It adopts a dual-core DSP sampling circuit and a 4G communication module to realize real-time online monitoring of power quality, and is equipped with a power quality monitoring platform.
It enables real-time online monitoring of power quality, improves the accuracy of analysis and evaluation and power reliability, supports live installation, and reduces installation costs and economic losses.
Smart Images

Figure CN223967696U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oilfield power grid monitoring technology, and in particular to a remote power quality monitoring device. Background Technology
[0002] Electricity is the primary energy source supporting oilfield development, and its reliability is a key factor in ensuring oil production. With the widespread application of various frequency converters and the temporary connection of high-power equipment such as pressure drives and drilling equipment, frequent extreme weather events cause harmonic and voltage dips, reducing power supply reliability and consequently impacting oil production. Therefore, timely monitoring of the oilfield power grid is necessary.
[0003] However, at present, oilfields mainly monitor power quality offline manually. The data obtained is not representative, cannot reflect changes in power quality in a timely manner, and cannot achieve online monitoring of power quality. This makes it difficult to support subsequent analysis, diagnosis, supervision and management, and ultimately cannot provide a stable power supply for oil development and production. Utility Model Content
[0004] The purpose of this utility model is to address the aforementioned deficiencies in the existing technology by providing a remote power quality monitoring device that enables real-time online monitoring of power quality. When paired with a power quality monitoring platform, it can improve the accuracy and synchronization of power quality monitoring in regional power distribution networks and new energy access points, thereby enhancing the accuracy of analysis and evaluation. Furthermore, it has a simple structure and low installation material costs.
[0005] The technical solution of the remote power quality monitoring device mentioned in this utility model is as follows: it includes a main housing (1), a high-voltage input connector (2), a switch (3), an indicator circuit board (4), a GPS antenna (5), a low-voltage signal connector (6), a communication antenna (7), a main circuit board (8), an upper baffle (9), a lower baffle (10), and a control circuit module (11). The control circuit module (11) is installed on the upper side of the main circuit board (8). The low-voltage signal connector (6) is provided at the upper end of the main circuit board (8), and the high-voltage input connector (2) is provided at the lower end. The main housing (1) is installed on the outer side of the main circuit board (8). The indicator circuit board (4) is installed on the upper side of the main housing (1). The upper baffle (9) is provided at the upper end of the main housing (1). The GPS antenna (5), the low-voltage signal connector (6), and the communication antenna (7) pass through and are exposed along the upper baffle (9). The lower baffle (10) is installed at the lower end of the main housing (1). The high-voltage input connector (2) and the switch (3) pass through and are exposed along the lower baffle (10).
[0006] Preferably, the control circuit module (11) includes a conditioning circuit (11.1), a power supply module (11.2), a first analog-to-digital converter (ADC1), a second analog-to-digital converter (ADC2), a dual-core DSP sampling circuit (11.3), an ARM processor (11.4), a storage module (11.7), a communication module (11.5), an encryption module (11.6), a GPS positioning module (11.8), a 4G communication module (11.9), and an SD memory card (11.10). The output of the conditioning circuit (11.1) is connected to the first analog-to-digital converter (ADC1) and the second analog-to-digital converter (ADC2). The circuit (ADC2) is connected to the dual-core DSP sampling circuit (11.3), and the conditioning circuit (11.1) is powered by the power module (11.2). The dual-core DSP sampling circuit (11.3) is connected to the ARM processor (11.4). One interface of the ARM processor (11.4) is connected to the SD memory card (11.10) through the storage module (11.7). One interface of the ARM processor (11.4) is connected to the GPS positioning module (11.8) and the 4G communication module (11.9) through the communication module (11.5). The communication module (11.5) is connected to the encryption module (11.6).
[0007] Preferably, the indicator circuit board (4) includes an indicator light (4.1), a memory card slot (4.2), a network cable interface (4.3), and a communication card slot (4.4). The memory card slot (4.2), the network cable interface (4.3), and the communication card slot (4.4) are provided at the upper end of the indicator circuit board (4), and three indicator lights (4.1) are provided at the lower middle part of the indicator circuit board (4).
[0008] Preferably, the upper baffle (9) includes a low-voltage interface hole (9.1), a communication antenna hole (9.2), a GPS antenna hole (9.3), a communication hole (9.4), a network cable hole (9.5), and a storage hole (9.6). The upper baffle (9) has a communication antenna hole (9.2) and a GPS antenna hole (9.3) on its two sides respectively. The upper baffle (9) has a low-voltage interface hole (9.1) on its upper side and a communication hole (9.4), a network cable hole (9.5), and a storage hole (9.6) on its lower side.
[0009] Preferably, the lower baffle (10) includes a high-voltage interface hole (10.1), a switch hole (10.2), a screw fixing hole (10.3), and a lower baffle body (10.4). The lower baffle body (10.4) has a switch hole (10.2) at its center for cooperating with a switch (3); a high-voltage interface hole (10.1) is provided on the lower side of the switch hole (10.2) for cooperating with a high-voltage input connector (2); and screw fixing holes (10.3) are provided around the lower baffle body (10.4) for connecting and fixing to the lower end of the main housing (1).
[0010] The beneficial effects of this utility model are as follows: This utility model has communication antenna holes and GPS antenna holes on both sides of the upper baffle, a low-voltage interface hole on the upper side of the upper baffle, and communication holes, network cable holes, and storage holes on the lower side of the upper baffle. This allows the communication antenna and GPS antenna to pass through these holes and connect to the 4G communication module and GPS positioning module in the control circuit module. This enables real-time online monitoring of power quality. With the support of a power quality monitoring platform, it can improve the accuracy and synchronization of power quality monitoring in regional distribution networks and new energy access points, enhancing the accuracy of analysis and evaluation. Furthermore, its structure is simple, the installation material cost is low, it supports live installation, reducing economic losses from power outages, and it is ready to use immediately after installation, improving power supply reliability. 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 3D structural diagram of the main circuit board;
[0013] Figure 3 This is a side view of the main circuit board;
[0014] Figure 4 This is a three-dimensional structural diagram of the main shell;
[0015] Figure 5 This is a schematic diagram of the three-dimensional structure of the back of the indicator light circuit board;
[0016] Figure 6 This is a three-dimensional structural diagram of the front of the indicator light circuit board;
[0017] Figure 7 This is a three-dimensional structural diagram of the upper baffle;
[0018] Figure 8 This is a three-dimensional structural diagram of the lower baffle;
[0019] Figure 9 This is the block diagram of the control circuit module;
[0020] Figure 10 This is a connection diagram for the voltage sampling circuit;
[0021] Figure 11 This is the connection diagram for the current sampling circuit;
[0022] In the diagram above: 1. Main housing; 2. High-voltage input connector; 3. Power switch; 4. Indicator light circuit board; 5. GPS antenna; 6. Low-voltage signal connector; 7. Communication antenna; 8. Main circuit board; 9. Upper baffle; 10. Lower baffle; 11. Control circuit module; 1.1 Slide; 4.1 Indicator light; 4.2 Memory card slot; 4.3 Network cable interface; 4.4 Communication card slot; 9.1 Low-voltage interface hole; 9.2 Communication antenna hole; 9.3 GPS antenna hole; 9.4 Communication hole; 9.5 Network cable hole; 9.6 Memory hole; 9.6 High-voltage... Interface hole 10.1, switch hole 10.2, screw fixing hole 10.3, lower baffle body 10.4, conditioning circuit 11.1, power module 11.2, first analog-to-digital converter circuit ADC1, second analog-to-digital converter circuit ADC2, dual-core DSP sampling circuit 11.3, ARM processor 11.4, storage module 11.7, communication module 11.5, encryption module 11.6, GPS positioning module 11.8, 4G communication module 11.9, SD memory card 11.10. Detailed Implementation
[0023] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.
[0024] Example 1, referring to Figures 1-11 The present invention discloses a remote power quality monitoring device, comprising a main housing 1, a high-voltage input connector 2, a switch 3, an indicator light circuit board 4, a GPS antenna 5, a low-voltage signal connector 6, a communication antenna 7, a main circuit board 8, an upper baffle 9, a lower baffle 10, and a control circuit module 11. The control circuit module 11 is mounted on the upper side of the main circuit board 8. The low-voltage signal connector 6 is located at the upper end of the main circuit board 8, and the high-voltage input connector 2 is located at the lower end. The main housing 1 is mounted on the outer side of the main circuit board 8. The indicator light circuit board 4 is mounted on the upper side of the main housing 1. The upper baffle 9 is located at the upper end of the main housing 1, through which the GPS antenna 5, the low-voltage signal connector 6, and the communication antenna 7 are exposed. The lower baffle 10 is installed at the lower end of the main housing 1, through which the high-voltage input connector 2 and the switch 3 are exposed.
[0025] Reference Figure 9The control circuit module 11 mentioned in this utility model includes a conditioning circuit 11.1, a power supply module 11.2, a first analog-to-digital converter (ADC1), a second analog-to-digital converter (ADC2), a dual-core DSP sampling circuit 11.3, an ARM processor 11.4, a storage module 11.7, a communication module 11.5, an encryption module 11.6, a GPS positioning module 11.8, a 4G communication module 11.9, and an SD memory card 11.10. The output of the conditioning circuit 11.1 is connected to the first analog-to-digital converter (ADC1) and the second analog-to-digital converter (ADC2). The switching circuit ADC2 is connected to the dual-core DSP sampling circuit 11.3, and the conditioning circuit 11.1 is powered by the power module 11.2. The dual-core DSP sampling circuit 11.3 is connected to the ARM processor 11.4. One interface of the ARM processor 11.4 is connected to the SD memory card 11.10 through the storage module 11.7. Another interface of the ARM processor 11.4 is connected to the GPS positioning module 11.8 and the 4G communication module 11.9 through the communication module 11.5. The communication module 11.5 is also connected to the encryption module 11.6.
[0026] The dual-core DSP sampling circuit 11.3 includes a voltage sampling circuit and a current sampling circuit, as detailed in [reference needed]. Figure 10 and Figure 11 The other circuits mentioned above are conventional technologies well known to those skilled in the art, and will not be described in detail here.
[0027] Reference Figure 5 and Figure 6 The indicator circuit board 4 mentioned in this utility model includes an indicator light 4.1, a memory card slot 4.2, a network cable interface 4.3, and a communication card slot 4.4. The memory card slot 4.2, the network cable interface 4.3, and the communication card slot 4.4 are provided at the upper end of the indicator circuit board 4, and three indicator lights 4.1 are provided at the lower middle part of the indicator circuit board 4.
[0028] Reference Figure 7 The upper baffle 9 mentioned in this utility model includes a low-voltage interface hole 9.1, a communication antenna hole 9.2, a GPS antenna hole 9.3, a communication hole 9.4, a network cable hole 9.5, and a storage hole 9.6. The upper baffle 9 has a communication antenna hole 9.2 and a GPS antenna hole 9.3 on its two sides, a low-voltage interface hole 9.1 on its upper side, and a communication hole 9.4, a network cable hole 9.5, and a storage hole 9.6 on its lower side.
[0029] Reference Figure 8The lower baffle 10 mentioned in this utility model includes a high-voltage interface hole 10.1, a switch hole 10.2, a screw fixing hole 10.3, and a lower baffle body 10.4. The lower baffle body 10.4 has a switch hole 10.2 at its center for cooperating with a switch 3; a high-voltage interface hole 10.1 is provided below the switch hole 10.2 for cooperating with a high-voltage input connector 2; and screw fixing holes 10.3 are provided around the lower baffle body 10.4 for connecting and fixing to the lower end of the main housing 1.
[0030] In use, this utility model has communication antenna holes 9.2 and GPS antenna holes 9.3 on both sides of the upper baffle 9, a low-voltage interface hole 9.1 on the upper side of the upper baffle 9, and a communication hole 9.4, a network cable hole 9.5, and a storage hole 9.6 on the lower side of the upper baffle 9. The communication antenna 7 and GPS antenna 5 can pass through the communication antenna holes 9.2 and GPS antenna holes 9.3 and be connected to the 4G communication module 11.9 and GPS positioning module 11.8 in the control circuit module 11. This enables real-time online monitoring of power quality. With the matching power quality monitoring platform, the accuracy and synchronization of power quality monitoring in the regional distribution network and new energy access points can be improved, enhancing the accuracy and confidence of analysis and evaluation. In addition, the use of a dual-core DSP sampling circuit can simultaneously and collaboratively process multiple tasks, realizing parallel processing and calculation of multi-channel sampling data.
[0031] Example 2: A remote power quality monitoring device of this utility model includes a main housing 1, a high-voltage input connector 2, a switch 3, an indicator light circuit board 4, a GPS antenna 5, a low-voltage signal connector 6, a communication antenna 7, a main circuit board 8, an upper baffle 9, a lower baffle 10, and a control circuit module 11. The control circuit module 11 is installed on the upper side of the main circuit board 8. The low-voltage signal connector 6 is located at the upper end of the main circuit board 8, and the high-voltage input connector 2 is located at the lower end. The main housing 1 is installed on the outer side of the main circuit board 8. The indicator light circuit board 4 is installed on the upper side of the main housing 1. The upper baffle 9 is located at the upper end of the main housing 1, through which the GPS antenna 5, the low-voltage signal connector 6, and the communication antenna 7 are exposed. The lower baffle 10 is installed at the lower end of the main housing 1, through which the high-voltage input connector 2 and the switch 3 are exposed. In addition, sliding grooves 1.1 are provided on both sides of the main housing 1 to facilitate the installation of the circuit board.
[0032] The difference from Example 1 is:
[0033] Slide grooves 1.1 are provided on both sides of the main housing 1 to facilitate the installation of circuit boards and improve assembly efficiency.
[0034] The above description is merely a preferred embodiment of this utility model. Any person skilled in the art may modify this utility model or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent transformations made based on the technical solutions of this utility model are within the scope of protection claimed by this utility model.
Claims
1. A remote power quality monitoring device, characterized in that: The system includes a main housing (1), a high-voltage input connector (2), a power switch (3), an indicator light circuit board (4), a GPS antenna (5), a low-voltage signal connector (6), a communication antenna (7), a main circuit board (8), an upper baffle (9), a lower baffle (10), and a control circuit module (11). The control circuit module (11) is installed on the upper side of the main circuit board (8). The low-voltage signal connector (6) is provided at the upper end of the main circuit board (8), and the high-voltage input connector (2) is provided at the lower end. The main housing (1) is installed on the outer side of the main circuit board (8). The indicator light circuit board (4) is installed on the upper side of the main housing (1). The upper baffle (9) is provided at the upper end of the main housing (1). The GPS antenna (5), the low-voltage signal connector (6), and the communication antenna (7) pass through and are exposed along the upper baffle (9). The lower baffle (10) is installed at the lower end of the main housing (1). The high-voltage input connector (2) and the power switch (3) pass through and are exposed along the lower baffle (10).
2. The remote power quality monitoring device according to claim 1, characterized in that: The control circuit module (11) includes a conditioning circuit (11.1), a power supply module (11.2), a first analog-to-digital converter (ADC1), a second analog-to-digital converter (ADC2), a dual-core DSP sampling circuit (11.3), an ARM processor (11.4), a storage module (11.7), a communication module (11.5), an encryption module (11.6), a GPS positioning module (11.8), a 4G communication module (11.9), and an SD memory card (11.10). The output of the conditioning circuit (11.1) is connected to the first analog-to-digital converter (ADC1) and the second analog-to-digital converter (ADC2). (ADC2) is connected to the dual-core DSP sampling circuit (11.3), and the conditioning circuit (11.1) is powered by the power module (11.2); the dual-core DSP sampling circuit (11.3) is connected to the ARM processor (11.4), one interface of the ARM processor (11.4) is connected to the SD memory card (11.10) through the storage module (11.7), one interface of the ARM processor (11.4) is connected to the GPS positioning module (11.8) and the 4G communication module (11.9) through the communication module (11.5), and the communication module (11.5) is connected to the encryption module (11.6).
3. The remote power quality monitoring device according to claim 1, characterized in that: The indicator circuit board (4) includes an indicator light (4.1), a memory card slot (4.2), a network cable interface (4.3), and a communication card slot (4.4). The memory card slot (4.2), the network cable interface (4.3), and the communication card slot (4.4) are provided at the upper end of the indicator circuit board (4), and three indicator lights (4.1) are provided at the lower middle part of the indicator circuit board (4).
4. The remote power quality monitoring device according to claim 1, characterized in that: The upper baffle (9) includes a low-voltage interface hole (9.1), a communication antenna hole (9.2), a GPS antenna hole (9.3), a communication hole (9.4), a network cable hole (9.5), and a storage hole (9.6). The upper baffle (9) has a communication antenna hole (9.2) and a GPS antenna hole (9.3) on its two sides respectively. The upper baffle (9) has a low-voltage interface hole (9.1) on its upper side and a communication hole (9.4), a network cable hole (9.5), and a storage hole (9.6) on its lower side.
5. The remote power quality monitoring device according to claim 1, characterized in that: The lower baffle (10) includes a high-voltage interface hole (10.1), a switch hole (10.2), a screw fixing hole (10.3), and a lower baffle body (10.4). The lower baffle body (10.4) has a switch hole (10.2) at its center for cooperating with the switch (3). A high-voltage interface hole (10.1) is provided on the lower side of the switch hole (10.2) for cooperating with the high-voltage input connector (2). Screw fixing holes (10.3) are provided around the lower baffle body (10.4) for connecting and fixing to the lower end of the main housing (1).