A data acquisition device and method based on power carrier communication technology

Abstract

The invention provides a data acquisition device and a data acquisition method based on power carrier-wave communication technology. The device comprises a data acquisition circuit, a control module, a power carrier-wave transmission module, a line driver, a power supply unit and a power source module. The input end of a voltage transformer and the input end of a current transformer are both connected to a power utilization system, the output end of the voltage transformer and the output end of the current transformer are respectively connected with the input end of a band pass filter, the output end of the band pass filter is connected with the input end of a multipath sampling circuit, the output end of the multipath sampling circuit is connected with the input end of the control module, the output end of the control module is connected with the input end of the power carrier-wave transmission module, and the power carrier-wave transmission module is connected with a power line via the line driver. The device and method can monitor power consumption of the power utilization system in real time based on the power carrier-wave communication technology with low cost; and at the same time, transmission is mainly short in distance and small in data amount, the method and device are not influenced by two weak points, i.e., large channel interference and small information amout, of power carrier-wave communication.

Description

technical field [0001] The invention belongs to the technical field of power systems, and in particular relates to a data acquisition device and method based on power carrier communication technology. Background technique [0002] With the rapid growth of the number of electrical products, resource and environmental problems caused by energy consumption have attracted more and more attention from the society. For this reason, the International Energy Agency has proposed a series of energy-saving plans, which have received positive responses from countries around the world, and signed agreements to commit to year-by-year To reduce energy consumption, countries have successively implemented mandatory regulations such as the "Regulations on the Management of Energy Conservation in Public Buildings" and the "White Label Mechanism". [0003] At present, 90% of the building automation systems installed by large public institutions cannot effectively monitor energy-consuming system...

AI Technical Summary

Problems solved by technology

At present, domestic data acquisition devices can already display the power of various electrical appliances, but they cannot effectively transmit data, so it is still impossible to complete real-time monitoring of energy consumption waste of electrical appliances

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