Figure1

Figure 1. Example of RDT. (A) Multi-modal sensors combine data from multiple sensor types, such as visual, auditory, and tactile inputs, to provide comprehensive and robust environmental perception and enhance the accuracy and reliability of intelligent systems; (B) DTs data include real-time data representing the physical and functional characteristics of a physical robot; (C) DTs create a virtual representation of a physical robot and enable real-time simulation of its physical counterpart; (D) DTs simulate the physical characteristics, environment, and operating conditions of robots to enable robots to train and learn in a virtual environment; (E) DTs provide real-time data and insights, which are crucial for making informed decisions in the complex environment; (F) DTs help optimize the execution of complex tasks by identifying the most effective sequences and methods. RDT: Robotic digital twin; DTs: digital twins.