A multi-channel non-intrusive load identification device based on RISC-V architecture

By using an external switchable current transformer and a multi-channel non-intrusive load identification device based on the RISC-V architecture, the problems of existing equipment requiring modification, low sampling rate, and insufficient accuracy have been solved. This enables multi-channel synchronous acquisition, accurate identification, and real-time feedback, reducing construction costs and power consumption, and adapting to different power consumption scenarios.

CN122109678APending Publication Date: 2026-05-29NANJING INFORMATION HIGH-SPEED RAILWAY RES INST OF SCI AND TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NANJING INFORMATION HIGH-SPEED RAILWAY RES INST OF SCI AND TECH
Filing Date
2026-03-17
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing non-intrusive load identification devices require modification of electricity meters, can only sample through a single channel, have low sampling rate and accuracy, low identification accuracy, and large data transmission volume. The high cost of replacing traditional electricity meters affects users' electricity consumption and makes it difficult to meet the needs of smart energy management.

Method used

It adopts an external switchable current transformer and a multi-channel 24-bit analog-to-digital converter, equipped with a 64-bit quad-core processor based on RISC-V architecture, and combined with a high-performance communication module to achieve multi-channel synchronous acquisition, accurate data processing and real-time feedback, and supports non-intrusive load identification of traditional electricity meters.

Benefits of technology

No need to modify the electricity meter, it can achieve multi-channel synchronous data acquisition, high-precision data processing, reduce construction costs, improve recognition accuracy, provide real-time feedback, reduce power consumption, adapt to different power consumption scenarios, and lower the threshold for implementation.

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Abstract

The application belongs to the technical field of non-invasive load identification, and discloses a multi-channel non-invasive load identification device based on a RISC-V architecture, which comprises a device body, a sampling module, an analog-digital conversion module and a communication module, wherein the device body comprises a main control module; the sampling module adopts an external open-close type mutual inductor. The application adopts the external open-close type mutual inductor to match the multi-channel synchronous sampling design, does not need to change the existing electric energy architecture, does not affect the normal power utilization of users, and at the same time, the hardware circuit can flexibly increase or decrease the number of channels through cascaded sampling chips, realizes the synchronous independent data acquisition of multi-channel load lines, completely solves the problems that the existing device needs to be modified and can only sample in a single channel, can accurately match the identification requirements of different numbers of traditional electric meters and power utilization devices, greatly reduces the construction and installation cost, and improves the scene adaptability of the device.
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