design of electric velncle charging and swapping business management based on platform - plugin structure

摘要

The dynamic compatibility of the device and communication protocols in operation management system of electric vehicles charging station was studied. Using NPAPI plug-in technique of Netscape series browser, the communication plug-in models are set up which separate the channel management and communication protocols translation from the charging and swapping business management system, and the cross-platform package is successfully developed. The protocols identifying, frames composing and decomposing are realized through designing the data structure and the functions in the modules. Practice indicates that with the communication plug-in, different remote terminal units can be compatible dynamically by operation management system on different platform, and charging business management of the system can be completed. Thus the business management system can run stably and efficiently.