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The rapid development of computer network technology and extensive application is changing the way people work and live on computer technology, automatic control, production, processing, quality testing, and many other areas of development had a huge impact. The concept of control instruments gradually from the \This topic based on temperature and humidity, and air conditioning refrigerant enthalpy difference method based on the test platform, developed based on the WCF (Windows Communication Foundation) test platform for monitoring of refrigeration and air conditioning systems, and system test uncertainty were studied. In order to develop the monitoring system, first through the refrigeration and air conditioning test platform for the development of surveillance systems, remote testing technology are described, for refrigeration and air conditioning test platform commonly used test methods were compared. Used for this topic enthalpy difference of the air principle, condition, physical calculation methods described in detail. Secondly, the WCF-based refrigeration and air conditioning control system test platform development environment for a detailed exposition of the overall system architecture and system functions a complete design. Test platform for existing refrigeration and air conditioning control system is mainly based on local implementation, and the remote monitoring function there is a lack of interoperability, security, and scalability shortcomings, this paper based on SOA (Service Oriented Architecture) design concept, the. NET platform WCF technique used under the system has been developed, the system can provide remote network services, not only the test remote monitoring and remote control functions, and provides a network service interface, making the system security, interoperability, and scalability of significantly improved. To make the system both with remote monitoring capabilities, but also has the advantages of local automatic monitoring system, the system architecture uses B / S and C / S combined and surveillance systems in local host WCF web services. Applications WCF,. NET Framework 3.5, ASP.NET 3.5, IIS, SilverLight2.0 complete local monitoring systems and other technologies, Web servers, Web servers, database servers and browser clients design and implementation, and system maintenance and security upgrades sex discussed. Finally, WCF web services and browser clients running debugging functions, the results meet the actual needs. In order to analyze the accuracy of the test results for system reasonable, according to the national standard air conditioner cooling (heat) calculation methods to the cooling capacity of the test, for example, established the air conditioner cooling measurement uncertainty calculation model, and carried out without Sources of certainty. For each component of uncertainty were calculated, given the standard uncertainty and expanded uncertainty.
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