Abstract: This article is focused on the contribution of unmanned autonomous systems that are based on the Hitech autonomous system. On the other hand, it also includes an intelligent machine that has the capacity to travel by sea, land, and air without humans. There are different kinds of autonomous robots, vehicles, drones, and warehouse and factory system that helps to provide smart service to individuals. Artificial intelligence plays a major role in the autonomous system and it is responsible for developing the smart system. unmanned aerial vehicle (UAV) that is also known as a drone and is generally used for mapping, wars, product deliveries as well as surveillance.
This study has also shone a light on the safe environment development that leads to providing a safe environment through proper surveillance in a large area within a limited time period. In this context, UAVs play a major role in monitoring environmental law enforcement, geographical mapping, and wildlife monitoring. Transportation systems one other advanced facilities provide extraordinary service to society. It can deliver emergency medical products such as medicine, equipment, and other package products. It has been seen that several kinds of transport and logistic markets use these drones to enhance their business and deliver products safely. Accordingly, this study has also discussed the limitations of the UAS system on land, sea, and air. It can be stated that it can be effective for society and future generations.

Keywords : Search And Rescue (SAR) drones, Unmanned Aerial Vehicle (UAV), Unmanned Autonomous Systems (UAS)