Comprehensive adaptive acquisition device based on MMS protocol remote control

Abstract

The invention discloses a comprehensive self-adaptive acquisition device based on MMS protocol remote control, a voltage and current self-adaptive acquisition module comprises a plurality of acquisition sub-modules, each acquisition sub-module is provided with a current acquisition assembly and a voltage acquisition assembly, and acquired fault data is modeled through an MMS and then is remotely transmitted to a master station end through a private network. According to the scheme, self-adaptive acquisition of the current or the voltage by the wave recording channel is realized, the method can be suitable for different acquisition scenes, and remote monitoring and control can be realized after acquisition.

Description

Technical Field

[0001] This invention relates to the field of power system automation technology, specifically to a comprehensive adaptive data acquisition device based on remote control via the MMS protocol. Background Technology

[0002] Currently, waveform recording technology is relatively mature, and portable waveform recorders play a crucial role in power grid fault analysis and distribution network fault location. However, due to size limitations, portable waveform recorders have a limited number of recording channels, and the types of recording channels are restricted during production. In practical applications, different environments lead to variations in the required number of voltage and current recording channels. Often, a portable waveform recording system may have enough channels in total, but the voltage or current channels may not meet testing requirements. In such cases, two systems need to be configured for synchronous waveform recording and analysis, which not only consumes more equipment and resources but also requires significant manpower for synchronization, waveform merging, and analysis, hindering rapid waveform recording and fault location analysis in substations and distribution networks. Therefore, based on practical needs, it is essential to develop voltage and current adaptive waveform recording technology. This technology would allow a single portable waveform recorder to flexibly configure the voltage and current acquisition types of the total recording channels in the field according to actual needs, adapting to different fault recording and fault location analysis application scenarios, and enabling remote transmission of fault data through modeling. Summary of the Invention

[0003] The purpose of this invention is to provide a comprehensive adaptive acquisition device based on the MMS protocol for remote control, so as to achieve the adaptability of the comprehensive acquisition device in different application scenarios.

[0004] To address the aforementioned technical problems, this invention provides a voltage and current adaptive acquisition module, comprising several acquisition sub-modules, each of which has a current acquisition component and a voltage acquisition component.

[0005] According to the above scheme, the number of data acquisition sub-modules should be at least 32.

[0006] According to the above scheme, the number of data acquisition sub-modules is 32.

[0007] According to the above scheme, the current acquisition component includes a clamp clip.

[0008] According to the above scheme, the voltage acquisition component includes a detachable banana plug and a probe tip.

[0009] According to the above scheme, the probe tip is an alligator clip.

[0010] The present invention also provides a comprehensive data acquisition device, including the voltage and current adaptive acquisition module, A / D conversion module, and monitoring and analysis module described above; The voltage and current adaptive acquisition module acquires current or voltage signals and generates corresponding acquisition signals; The A / D conversion module converts the acquired signal from an analog signal to a digital signal; The monitoring and analysis module monitors and analyzes the acquired signals in digital form, and starts recording waveforms when an anomaly is detected. Furthermore, the monitoring and analysis module models the waveform file using the 61850 and transmits the acquired signals to an external remote monitoring module via the MMS protocol.

[0011] According to the above scheme, the number of data acquisition sub-modules should be at least 32.

[0012] According to the above scheme, the A / D conversion module and the monitoring and analysis module are connected via a PCIe bus.

[0013] The present invention also provides a voltage and current monitoring system, including the integrated acquisition device and the remote monitoring module described above; the remote monitoring module monitors the waveform file in real time and controls the integrated acquisition device.

[0014] Beneficial effects This invention equips each acquisition submodule with current and voltage acquisition components, enabling each recording channel to acquire both current and voltage. Therefore, compared to existing schemes with fixed acquisition types for recording channels, this solution can adapt to more acquisition needs without increasing the total number of acquisition channels, thus exhibiting better adaptability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the integrated data acquisition device according to an embodiment of the present invention; Figure 2 This is a clamp-shaped clip according to an embodiment of the present invention; Figure 3 This is an embodiment of the banana plug and probe tip of the present invention; Figure 4 This is a schematic diagram of the software interface for adaptive current / voltage identification of the monitoring and analysis module according to an embodiment of the present invention. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0017] See Figure 1 This embodiment discloses a voltage and current adaptive acquisition module, which includes several acquisition sub-modules, each of which has a current acquisition component and a voltage acquisition component.

[0018] Furthermore, the number of data acquisition sub-modules is at least 32.

[0019] Furthermore, the number of data acquisition sub-modules is 32.

[0020] Further, see Figure 2 The current acquisition component includes a clamp clamp. To acquire current, the conductor to be measured is placed in the center of the clamp jaws, enabling contactless current acquisition.

[0021] Further, see Figure 3 The voltage acquisition component includes a detachable banana plug and a probe tip.

[0022] Furthermore, the probe tip is an alligator clip. In other embodiments of the invention, the probe tip may employ other forms of connectors (such as probes) as needed.

[0023] This embodiment achieves contactless acquisition of current or voltage signals by using clamps and probes, that is, acquiring current or voltage signals of the load without touching the wiring.

[0024] See Figure 1 This embodiment also discloses a comprehensive data acquisition device, including the voltage and current adaptive acquisition module, A / D conversion module, and monitoring and analysis module described above (the waveform recording file can be automatically backed up and remotely transmitted and backed up via MMS). The voltage and current adaptive acquisition module acquires current or voltage signals and generates corresponding acquisition signals. The A / D conversion module converts the acquisition signals from analog signals to digital signals. The monitoring and analysis module monitors and analyzes the acquisition signals in digital form and starts waveform recording when an anomaly is detected (the waveform recording file can be automatically backed up and remotely transmitted and backed up via MMS).

[0025] Furthermore, the A / D conversion module and the monitoring and analysis module are connected via a PCIe bus.

[0026] In this embodiment, see Figure 4 The monitoring and analysis module can automatically identify and arrange the types of input digital signals, that is, identify whether the digital signal is current or voltage (by determining whether a digital signal comes from a current acquisition component or a voltage acquisition component), and arrange the current / voltage signals (by determining which acquisition submodule a digital signal comes from).

[0027] This embodiment also discloses a voltage and current monitoring system, including the integrated acquisition device and the remote monitoring module described above; the remote monitoring module monitors the waveform file in real time and controls the integrated acquisition device.

[0028] It should be noted that, depending on the implementation needs, the various steps / components described in this application can be broken down into more steps / components, or two or more steps / components or parts of the operation of steps / components can be combined into new steps / components to achieve the purpose of this invention.

[0029] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A voltage current adaptive acquisition module, characterized in that, The current acquisition sub-module comprises a current acquisition component and a voltage acquisition component.

2. The voltage current adaptive acquisition module of claim 1, wherein, The number of the acquisition sub-modules is at least 32.

3. The voltage current adaptive acquisition module of claim 2, wherein, The number of the acquisition sub-modules is 32.

4. The voltage current adaptive acquisition module of claim 1, wherein, The current acquisition component comprises a clamp.

5. The voltage current adaptive acquisition module of claim 1, wherein, The voltage acquisition component comprises a detachable banana plug and a probe end.

6. The voltage current adaptive acquisition module of claim 5, wherein, The probe end is a crocodile clip.

7. An integrated acquisition device, comprising: The voltage and current adaptive acquisition module, the A / D conversion module, and the monitoring and analysis module of claim 1 are included. The voltage and current adaptive acquisition module acquires current signals or voltage signals and generates corresponding acquisition signals. The A / D conversion module converts the acquisition signals from analog signals to digital signals. The monitoring and analysis module monitors and analyzes the acquisition signals in the form of digital signals, and starts wave recording when an abnormality is detected.

8. The integrated acquisition device of claim 7, wherein, The monitoring and analysis module transmits the acquisition signals to an external remote monitoring module through the MMS protocol after modeling the wave recording file according to the 61850.

9. The integrated acquisition device of claim 7, wherein, The number of the acquisition sub-modules is at least 32.

10. A voltage current monitoring system, characterized by, The A / D conversion module and the monitoring and analysis module are connected through a PCIE bus. The comprehensive acquisition device and the remote monitoring module of claim 7 are included. The remote monitoring module monitors the wave recording file in real time and controls the comprehensive acquisition device.

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