Electricity meter

About: Electricity meter is a research topic. Over the lifetime, 7894 publications have been published within this topic receiving 42430 citations. The topic is also known as: electric meter & electrical meter.

Meter reading system and method thereof

Abstract: The invention discloses a meter reading system which comprises a power line wideband carrier communication unit, a wireless communication unit, a clock unit, a control unit and a storage unit. The power line wideband carrier communication unit is used for transceiving a meter reading signal transmitted in a power line carrier way; the wireless communication unit is used for transceiving a meter reading signal transmitted in a wireless communication way; and the control unit is used for detecting a channel condition, controlling the meter reading system to automatically switch channels between the power line wideband carrier communication and the wireless communication according to a detection result, carrying out automatic networking after switching the channels and carrying out format conversion on the meter reading signals received from the power line wideband carrier communication unit and the wireless communication unit to generate electric meter data. The meter reading system combines the wireless communication way with the power line communication way by utilizing the characteristics of high reliability of the wideband carrier communication, high data transmission rate, large data capacity, bidirectional transmission and the like, so that the field construction work such as reading an electric meter, arranging wires and the like is simple, convenient and flexible.

Data management device, power consumption amount calculation system and program

Abstract: PROBLEM TO BE SOLVED: To provide a power consumption amount calculation technology capable of calculating a total amount of power consumption while protecting privacy relevant to the power consumption amount tallied by each power meter.SOLUTION: A data management device is connected to a plurality of power meters tallying a power consumption amount of electric equipment, an energy management device and an application server. The data management device calculates a second code message by encrypting at least either of the followings so as to be decodable with the application server: the power consumption amount tallied by the power meter or a first code message which is the encrypted power consumption amount so as to be decodable by the application server. Then, the data management device calculates a first total amount of the power consumption amount using the power consumption amount tallied by each of a plurality of the power meters, calculates a code message of a second total amount of the power consumption within a predetermined period of time, sends the first total amount of the power consumption amount to the energy management device, and sends the code message of the second total amount to the application server.

Intelligent meter searching method and system for type II collector

Abstract: The invention relates to an intelligent meter searching method for a type II collector. The method comprises the following steps: electrifying to enter an intelligent meter searching process of equipment, wherein the intelligent meter searching process refers to setting abbreviated addressing wildcard characters specified in the protocol; and transmitting a meter reading command with the abbreviated addressing wildcard characters through the type II collector; analyzing the returned data, if the data can be successfully analyzed, recording the meter number and saving the meter address, if the data cannot be successfully analyzed, changing the searching conditions of the abbreviated addressing wildcard characters. According to the intelligent meter searching method for the type II collector disclosed by the invention, intelligent meter searching is realized by virtue of a rapid cycle meter searching algorithm under the condition that the cost is not increased, so that 32 electricity meters can be in cascade connection at most in the process of using the type II collector, and a corresponding relationship between the type II collector and the electricity meters is not needed to be manually maintained. Therefore, the type II collector can be modularly used when only one electricity meter is connected, and the method has meter-searching high efficiency and usability. The invention also provides an intelligent meter searching system for the type II collector.

Region recognition system and method of power line carrier

Abstract: The invention relates to region recognition system and a region recognition method of a power line carrier, mainly applied to a concentrated meter reading system under a power line carrier environment. The aim of the invention is completed by the technical scheme as follows: the region recognition system of the power line carrier comprises a main station, a concentrator, a region signal generatorand a plurality of intelligent electric meters. According to the system and the method provided by the invention, the accuracy of the region information can be ensured while the labor cost is reduced,region recognition can be achieved via an electric meter registering process, and the process is greatly simplified.