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On electric vehicle monitoring, there is no application layer standard to support the wireless communication. As a developing target, there are more varieties on the signal combination as the modules or unit carried by an electric vehicle change. Protocols between the transmission unit and the reception server are made to change frequently, so are the programs on both the transmission unit and the reception server, and results in the difficulty to the development and maintenance of the whole system. Since electric motorcycle and electric bicycle are also developing with hybrid type, same problems would occur to them. It would be favorable to find a protocol with endurance to such variability. ASN.1 is introduced as a valuable candidate. An effort is made to apply ASN.1 to wireless communication of electric vehicle, to see how well it is to adjust to the variability of signals.