| Research on an AMR (Automatic Meter Reading) System, the Web Services oriented GPRS AMR System is suggested to enhance the meter reading management of power companies. Through Web Services technology, the system is integrated with various related heterogeneous systems and application seamlessly; simultaneity the deployment and maintenance can be simplified much by the JNLP specifications; the real-time and reliable front-end based on GPRS network is implemented by Java multi-threading and socket technology.As an example of reading "the present three-phase voltage and current" of one remote transformer meter, this paper will give the design and key codes based on the latest Java Web Services specifications JAX-WS(Java API for XML Web Services), Java Socket and the JNLP(Java Network Launch Protocol) specification. The system designed accords with the actual requirements and State Grid Corporation standards "Power load management system data transmission protocol" well. It has a favorable application in the actual power companies. |
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