Through the analysis of needs of the flat surface cleaning, based on cleaning characteristics of smooth surface and the controlling method of the robot, a pneumatic flat surface cleaning robot based on PLC control is presented. The control system is mainly studied here. Firstly, the whole structure and running process of the robot is introduced. Secondly, the hardware part of the control system is introduced, including pneumatic system and electrical control system. Finally, software design and

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... programming are expounded in detail. In particular, a unique analysis method used form in programming is presented. The using effect of the robot prototype shows that the control system of which core is PLC complies with the electrical standard and has a high cost performance. The robot can provide an effective way to replace artificial for the smooth flat surface cleaning, which is simple and safe. © Jiujun et al.; Licensee Bentham Open. This is an open access article licensed under the terms of the (https://creativecommons.org/licenses/by/4.0/legalcode), which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.