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.

Power line communications interface to indoor subscriber

Abstract: An interface device for partitioning and deliverables from a power line to a home communications network. The deliverables include both electric power and communications signals. The communications signals, such as data signals, are delivered through a LAN to end-points. The device of the invention is bidirectional as it provides both upstream and downstream communications traffic. The interface can also furnish Information to the power meter and obtain information from it.

Load identification system for household intelligent electric meter based on similarity algorithm and load identification method thereof

Abstract: The invention discloses a load system for a household intelligent electric meter based on a similarity algorithm, which comprises the household intelligent electric meter, a steady-state power detection module, a transient-state power detection module, a comparator, a central processing unit, a communication module, a database and a server The invention also discloses a load identification method for the load identification system for the household intelligent electric meter based on the similarity algorithm The method is technically characterized in that steady-state and transient-state power features in the case of normal work of the household appliance are taken as feature parameters; through comparing and measuring the similarity between the feature parameters and a household appliance load feature parameter database, the type and the working state of the power load are determined; and then, through matching switching events, the corresponding power consumption of each household appliance is obtained Compared with the prior art, the purpose of identifying typical resistive and non-resistive appliances in the home in no need of a sample data training or learning process in advance is realized, a power list like a telephone list is provided for the user, and the user can adjust and plan use of the household appliances for energy conservation

Use SSD to Detect the Digital Region in Electricity Meter

Abstract: Every two months, the Taiwan Power Company will dispatch staffs to each household to read numbers in electricity meters to calculate and collect electricity bills. However, these electricity meter staff sometimes read the wrong meter numbers and so calculate the wrong electricity bill. A system that automatically detects the digital region in electricity meter, could reduce this misreading of numbers and calculate the electricity bill correctly, thereby increasing work efficiency. Herein, the deep learning model SSD (Single Shot MultiBox Detector) is applied and fine-turned to detect the digital region in electricity meter to help the Taiwan Power Company staff. From the experimental results, it is demonstrated that the presented deep learning methods detect the digital region better than the pre-trained SSD model. In the testing experiments, the accuracies of the digital region detection are 100% for both our collected data's and fine-tuned SSD, respectively.

High-voltage power meter correction device

Abstract: The utility model discloses a high voltage electric energy meter gauging device which comprises a low voltage current signal generating device whose output end is connected with a voltage booster and a current booster. The output ends of the voltage booster and the current booster are connected with a high voltage heavy current loop. The high voltage heavy current loop on which the gauged meter is working samples the high voltage heavy current signal to a standard electric energy meter at the lower voltage end using a high voltage current mutual inductor and a high voltage mutual inductor. The energy impulse outputted by the gauged meter is transmitted to a comparison gauging display device at the lower voltage end to compare with the high frequency gauging impulse of the standard electric power meter and compute the electric energy computation error. The high voltage electric energy meter gauging device achieves the integral measuring precision gauging of the high voltage measuring device which greatly improves the working efficiency.

A Two-Stage Solution Procedure for Digital Power Metering According to IEEE Standard 1459-2010 in Single-Phase System

Abstract: This paper describes an artificial neural network (ANN)-based method for the design of a digital power meter, which is able to evaluate the power quantities suggested in IEEE Standard 1459-2010 for a single-phase system. The solution procedure contains two stages. In the first stage, the spectral analysis of voltage and current signals is performed separately with the ANN-based method in a real-time manner. Then, the power quantities and evaluation indices are calculated in the second stage according to the requirements in IEEE Standard 1459-2010. Finally, a personal-computer-based instrument implemented with LabVIEW is developed to verify the usefulness of the proposed mechanism.