Digital twin platform security cooperation method and system

• Main Authors: CHEN LEI, LIU RILIANG, ZHEN YAN, BAI HUIFENG, ZHENG LIBIN, ZHANG GANGHONG, YIN ZHIBIN, HUO CHAO
• Format: Patent
• Language: Chinese; English
• Published: 28.07.2023
• Subjects: CALCULATING; COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention relates to the technical field of digital twinning. The embodiment of the invention provides a digital twinning platform security cooperation method and system. The security cooperation method for the digital twin platform is applied to a system comprising the digital twin platform and a plurality of side terminals, and the method comprises the following steps: acquiring model gradient data of local models of the side terminals and trust identifiers of the side terminals; determining whether to perform gradient cutting on the model gradient data according to the trust identifier; performing random disturbance and random scrambling on the model gradient value or the model gradient value after gradient clipping to obtain a shuffling result; and updating model parameters according to the shuffling result. According to the embodiment of the invention, the security and privacy of data transmission are improved. 本发明涉及数字孪生技术领域，实施例提供一种数字孪生平台安全协作方法及系统。其中，一种数字孪生平台安全协作方法，应用于包括数字孪生平台和若干边侧终端的系统中，该方法包括：获取边侧终端