Retransmission Methods to Improve Voltage Control of Distributed Generation System

Qu, Chunxiao; Liu, Xinyu; Wu, Jianjian; Liu, Yin; Li, Husheng; Cheng, Chi‐Tsun; Zhou, Qingfeng

doi:10.1109/lcomm.2021.3059930

Cited by 6 publications

(1 citation statement)

References 12 publications

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“…Remark 4: In comparison with the retransmission mechanism [40], the proposed double-level detection mechanism (combing timeout strategy, image encryption and watermarking) enhances the attack resistance of images and can detect tampering locations on images, which improves the efficiency. For instance, if 1% of 1000 frames of images (i.e., 10 frames) have timed out, and 2% (i.e., 20 frames) are judged as 'invalid" under image attacks, then more 30-times retransmission will be produced based on the retransmission mechanism under single-layer detection, which cannot guarantee system stability because the retransmitted image may not reach the remote control terminal in time.…”

Section: Roundmentioning

confidence: 99%

Co-Design Secure Control Based on Image Attack Detection and Data Compensation for Networked Visual Control Systems

Zhang

et al. 2022

IEEE Trans. Instrum. Meas.

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The incomplete and untrue data caused by cyber attacks (e.g., image information leakage and tampering) will affect control performance and even lead to system instability. To address this problem, a novel co-design secure control method based on image attack detection and data compensation for networked visual control systems (NVCSs) is proposed. Firstly, the existing problems of NVCSs under image attacks are analyzed, and a co-design secure control method including image encryption, watermarking-based attack detection and online data compensation is presented. Then, a detector based on doublelayer detection mechanism of timeout and digital watermarking is designed for real-time, integrity and authenticity discrimination of the image. Furthermore, according to the detection results, an online compensation scheme based on cubic spline interpolation and post-prediction update is proposed to reduce the effect of cumulative errors and improve control performance. Finally, the online compensation scheme is optimized by considering the characters of networked inverted pendulum visual control systems, and experimental results demonstrate the feasibility and effectiveness of the proposed detection and control method.

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Section: Roundmentioning

confidence: 99%