Flow definition software V2.0 is the software to define AGV operation process through a set of instructions system. For example, AGV battery information can be checked, If battery level is too low, AGV will move to charging station for automatic charging, or once AGV arrive certain specific station then will apply for external device operation such as opening the rolling door or entering into the elevator. Through editing the instructions, various logistics needs can be fulfilled in much more quick time without the need to modify and recompile large system source codes.