With the rapid increase of power equipment and increasing the size of the stock, the traditional means of maintenance of operation and maintenance can not meet the new needs of modern operation and maintenance, the urgent need to improve the level of power transmission equipment and power transmission equipment, intelligent perception of lean management level. RFID tags have been widely used in all parts of the state grid system, the performance difference showed against the anti-metal UHF RFID tags in different environment, this paper analyzes the different specifications of the anti-metal UHF RFID tag performance in the laboratory environment type test and the substation environment. Through laboratory environment simulation test and substation field environment test, research the frequency range and interference intensity of field electromagnetic interference in Substation, to get the main reasons that affect the performance of the anti-metal UHF RFID tags. It has certain value on research the interference mechanism of substation anti-metal UHF RFID tags and anti-metal UHF RFID tags application promotion.
The current equipment used to test the power consumption of power line carrier communication modules not only has low dynamic power consumption, but also fails to meet the accuracy requirements for AC power tests. Based on a careful analysis of the key technologies of the dynamic power test of the communication module, this paper designs a power tester. This paper introduces the working principle of the power tester, discusses the corresponding circuit design scheme from two aspects of DC power consumption and AC power consumption, and analyzes the calculation methods of the two in detail. Finally, the test results of each test system are compared and analyzed. The power tester can achieve higher accuracy data testing.
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