Security drone systems are rising in speed much faster than before as the requirement for autonomous solutions grows. In some regions, the covid-19 is shaking the stability of people’s daily life, and riots and violence are increasing. Which is boosting the demand for security drone systems. What matters most to a security drone system? Many companies are endeavoring the progress of autonomous drone systems, but the harsh reality is it may still take a while before a fully autonomous drone system is complete like the unmanned car, there is a giant step exists between 99% and 100% in this case. No matter how autonomous a drone can make, controlling the flight mission relies on software, which requires humans to trigger it and review the received data. A. Long time on duty (night vision) B. Long-range covered C. Quick automated recharge of the drone 1. Sunflower labs (2016, USA & Switzerland, < 50 employees) Sunflower Labs is one...