文献类型：期刊文献

英文题名：Localized Privacy Protection in a Cooperative LQG Control System with Multiple Sensors

作者：Lu, Mengqi[1]; Yang, Wen[1]; Yang, Chao[1]

机构：[1] East China University of Science and Technology, Key Laboratory of Smart Manufacturing in Energy Chemical Process, Ministry of Education, Department of Automation, Shanghai, China

年份：2024

起止页码：1151

外文期刊名：14th Asian Control Conference, ASCC 2024

收录：EI(收录号：20244117170092)

语种：英文

摘要：In this paper, we study the privacy preservation problem in a cooperative LQG control system with multiple sensors. We consider the user-server system, which consists of two parts, a user and a server. The user owns the plant, and it has N sensors to measure its states. In order to compute the optimal LQG control inputs, it employs the server who has computation ability. To achieve the cooperation, the user needs to provide certain private information about the states. We propose a novel method to protect the user's privacy, where a localized privacy scheme is employed, so that the server can only obtain 'incorrect' and deviated knowledge of the private information. Specifically, the privacy scheme is achieved by adding noises to the measurements of the states to be sent to the server. Meanwhile, we present a privacy metric which quantifies the privacy. Then, we formulate an optimization problem to analyze the tradeoff between the privacy preservation performance and the LQG control loss. This problem can be efficiently solved by numerical methods. ? 2024 Asian Control Association.