To assess the stability of the developed robot, the robot was installed in a tomato production commercial greenhouse and applied for a long-term measurement of the 3.5 m high and 56 m width tomato canopy. The results showed that the robot successfully obtained color and chlorophyll fluorescence panoramic images of the whole area of the tomato canopy over consecutive 30 days. And they proved that the developed robot has enough stability to obtain the multiple biological information images of a plant canopy in commercial greenhouses and there are some refinement points such as frame skipping during the video acquisition and tire slipping of the rail-runner unit for horizontal movement.