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Service discovery is an essential element in pervasive computing environment. The involvement of only the needed users and service providers for a service discovery in pervasive computing environment is challenging. To protect their privacy, neither side is willing to expose their information first. A incrementally progressive exposure approach is used to solve the problem in this paper. In the approach users and service providers expose partial information in turn and avoid unnecessary exposure if any mismatch occurs. To reduce the unnecessary match after an exchange especially the first round, a segment is randomly picked from the information and exchanged with the partial information together. To reduce the number of exchange, we gradually increase the length of exchange message if a match occurs.

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Along with the development of domestic wind power and the maturement of technology, equipment in the wind farm and monitoring system provided by multiple vendors will not be compatible with each other and it is not easy to make unified maintenance and management on wind power plant. The International Electrotechnical Commission (IEC) has drafted the IEC61400-25 series standard which faces communication for monitoring and control wind power plant for the problems above. In the demand of market competition and expansion of wind farm, IEC61400 will finally become a trend that monitoring system of communication must follow. Aiming at popular communication for monitoring and control wind power plant based on Web Services, this paper has analysed the mapping between IEC61400-25 and Web Services, proposed a concrete solution of engineering implementation,constructed the system structure of communication for monitoring and control wind power plant, designed software module structure of Web Services service of wind power, solved the problem of compatible between the communication for monitoring and control wind power plant based on Web Services and IEC61400-25 standard.