Abstract
This paper provides an overview of literature in recent five years on the state of the art of in-pipe inspection and cleaning robots. Firstly the overview explains the reasons why inpipe robots play a very important role in the rapid development of modern industry. Secondly, according to existent researches, type and feature of the traditional in-pipe robots have been systematically generalized which can be found in tablel and table2. Furthermore, the review specifically clarifies and analyses the latest conception and design of in-pipe robot from the global research institute after 2010, which are to solve the different kinds of difficulties in specially complicated working circumstances, such as vertical pipe, variable diameters, elbow pipe, branch pipe, mini pipe and poor driving force. Lastly, a conclusion about advantage and disadvantage of in-pipe robot is drew and the studying hotspot and trend in future for in-pipe robots are forecasted.
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