Fig. 4. Exterior wall automatic painting robot
The automatic painting robot for exterior wall developed by Inha
University in South Korea and Daewoo Institute of Construction
Technology can realize automatic painting, as shown in Figure 4. The
parts of the robot’s spray painting device include compressor, paint
can, brush, flow sensor, paint thickness gauge, and a constant flow
control system based on PID to accurately control the velocity of spray
painting. Its biggest advantage is that it monitors the surrounding wind
speed in real time and automatically changes the suction force of the
sucker to ensure that all its operations are carried out stably. After
testing, the robot can move spray paint at a speed of 0.11m /s.