JDL Intelligent Delivery Robot（Heavy type） is mainly used in hospitals, nursing homes, hotels and other non-intensive crowded places. They can replace or assist staff in transporting large-volume and heavy materials between multiple indoor locations. The robot can be linked with the elevator/access control system, take the elevator to open the door autonomously, and can take the initiative to return home to charge when the battery is low, and the operating status of each robot will be reported to the background management system in real time.