Core Viewpoint - The introduction of a cleaning robot in Tianjin's Haihe River area enhances the efficiency of sanitation work, allowing human workers to focus on more detailed cleaning tasks while the robot handles larger areas [5][12]. Group 1: Robot Functionality - The cleaning robot operates autonomously along a designated route, collecting litter such as leaves and plastic bottles from the riverbank [6][11]. - It is equipped with sensors to avoid obstacles and pedestrians, stopping when people approach [9][10]. - The robot can be controlled remotely via a mobile application, allowing workers to direct it to clean specific areas [11]. Group 2: Human-Robot Collaboration - The human worker, referred to as Master Ao, emphasizes the division of labor, stating that the robot handles large areas while he focuses on details like steps and lamp posts [7][8]. - The collaboration between the robot and the human worker reduces physical strain, enabling the worker to perform more in-depth cleaning tasks [13][14]. - The introduction of the robot has changed the worker's routine, allowing him to arrive later and work more efficiently [13]. Group 3: Public Interaction and Perception - The robot has attracted curiosity from the public, with the worker explaining its purpose and capabilities to visitors [12]. - Initially, there were concerns about the robot replacing human jobs, but the worker has found that it complements rather than competes with human efforts [10][13].