Abstract: Basically JCB is a typical hydraulic heavy-duty human-operated machine used in general versatile construction operations, such as digging, ground leveling, carrying loads, dumping loads and straight traction. However, there are many tasks, such as hazard environment (nuclear decomposition, earthquake, etc.) which is not suitable for human to work on site. The remotely controllable JCB are required to work in such environment. In this paper, we have implemented automatic monitoring and controlling of JCB using mobile phones through DTMF decoder. The camera placed on JCB monitors surrounding of JCB and this surrounding we can observe on PC or TV at remote location and with this observation we can operate JCB through mobile phone using DTMF decoder.

Keywords: JCB, Remotely Controlled, DTMF decoder, Mobile phone.