Figure 4 shows the mobile applicati

Figure 4 shows the mobile application software on the client side (Android) that we developed to control the robot-car. The software interface has three control modes as follows: (1) auto-following mode; (2) manual control mode; and (3) data query mode. Figure 4(a) shows an initial image of the user control interface.
The software interface has three control modes as follows
manual
query