Electricity consumption information collection system electric energy meter sensing method based on narrow band power line carrier wave

Abstract

The invention discloses an electricity consumption information collection system electric energy meter sensing method based on narrow band power line carrier wave, and relates to a collection method. During the application process, if electric energy meters are increased or replaced, the change of the electric energy meter archive information cannot be reported to the main station of the collection system in time. The method comprises the following steps: (11) carrying out abbreviated addressing and automatic table searching by a collector, and forming an electric energy meter archive; (12) once the change of the electric energy meter archive is sensed by the collector, actively reporting the change information to a concentrator by a narrow band power line carrier wave channel; and (13) reporting the archive information to the main station of a collection system in time by the concentrator. The automatic sensing of carrier wave is adopted, the assembly and disassembly of electric energy meters can be found out in time, other incidents are not taken into account, and the processing is real-time. After a meter or collector is installed, the information can be reported in several seconds. The active reporting is realized, and the information replacement efficiency is improved effectively.

Description

technical field [0001] The invention relates to a collection method, in particular to a power meter sensing method for a power consumption information collection system based on a narrowband power line carrier. Background technique [0002] In the electric power company's power consumption information collection system based on narrowband power line carrier, the whole system has four communication nodes, which are the main station of the collection system, concentrator, collector, and energy meter from top to bottom. The concentrator uses narrowband power line carrier Communicate with the collector, and the collector communicates with the energy meter through the "DL / T 645" protocol standard. In actual field applications, the master station of the acquisition system needs to efficiently manage the file information of all connected energy meters; at present, whether it is the narrowband power line carrier communication method or the RS-485 bus in the "DL / T 645" standard proto...

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Problems solved by technology

In actual field applications, the master station of the acquisition system needs to efficiently manage the file information of all connected energy meters; at present, whether it is the narrowband power line carrier communication method or the RS-485 bus in the "DL / T 645" standard protocol, both It is a half-duplex mode, so between the concentrator and the collector, and between the collector and the energy meter, the active query mode of the master-slave mode will be adopted. This method can achieve high efficiency when it is first installed, but if In the process of application, if the electric energy meter is added or replaced, the change of electric energy meter file information cannot be reported to the master station of the acquisition system in time. The site will query all the electric energy meters again, which is lack of pertinence and low efficiency; second, if the concentrator actively queries the frequency of the collector, it will undoubtedly increase the pressure on the narrowband carrier channel, which will bring normal business data transmission. influences

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