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.

Electricity larceny prevention check main machine

Abstract: The invention discloses an electricity larceny prevention check main machine, and belongs to the field of measurement devices A front-meter CT is arranged in front of an intelligent electric meter A wireless current detection unit is arranged on a monitored circuit The electricity larceny prevention check main machine is composed of the wireless current detection unit, a Zigbee module, the front-meter CT, a preceding stage processing unit, a magnetic field detection unit, a high-frequency detection unit, a CPU, a GPRS module and the intelligent electric meter The wireless current detection unit is connected with the Zigbee module in a wireless mode, the Zigbee module is connected with the CPU in a serial mode, the front-meter CT is connected with the preceding processing unit, the preceding processing unit is connected with an A/D data interface of the CPU, the magnetic field detection unit and the high frequency detection unit are correspondingly connected with I/O interfaces of the CPU, and the CPU is correspondingly connected with the GPRS module and the intelligent electric meter through a serial port By the adoption of the electricity larceny prevention check main machine, various electricity larceny behaviors can be monitored, the types and the positions of electricity larceny events can be defined, electricity larceny prevention check accuracy and the electricity larceny prevention check success rate can be improved, and the electricity larceny prevention check main machine can be widely used for the field of design and manufacturing of electricity larceny prevention check devices

Remote prepayment electricity vending system and method

Abstract: The invention relates to the technical field of remote electricity vending, and provides a remote prepayment electricity vending system and method. The remote prepayment electricity vending system comprises a data server, a concentrator, a front-end processor server and an electricity meter. The data server receives a recharging message input by a user through a client-side, and after the recharging message is encrypted, a data encrypted message is generated and sent to the front-end processor server. The front-end processor server is used for forwarding the data encrypted message to the concentrator. The concentrator sends the data encrypted message to the electricity meter. The electricity meter generates an electricity vending success message when judging that a secret key in the data encrypted message is matched with a secret key in the electricity meter, and sends the electricity vending success message to the concentrator. The concentrator sends the electricity vending success message to the data server and the client-side through the front-end processor server. By means of the remote prepayment electricity vending system and method, electricity consumption users can purchase electricity from the self-service client-side, remote prepayment electricity vending is achieved, payment dots and payment modes are enlarged, and meanwhile electricity vending safety is enhanced by the adoption of the unique electricity vending encryption mode.

Aluminum profile extrusion machine real-time energy consumption monitoring and energy consumption abnormality detection system

Abstract: The present invention is an aluminum profile extrusion machine real-time energy consumption monitoring and energy consumption abnormality detection system which comprises a smart electric meter, a smart gas meter, a serial port server, a switch and a monitoring server. The smart electric meter and the smart gas meter are connected to the serial port server through an RS-485 bus. The serial port server converts an RS-485 serial port into a TCP/IP network interface, and the data two-way transparent transmission from the RS-485 serial port to the TCP/IP network interface is realized. The monitoring server monitors load energy consumption data in real time and records the energy consumption data of different loads, historical energy consumption data is used to calculate the normal detection interval to unit aluminum profile energy consumption with a regression type support vector machine method, and the energy saving estimation of extrusion production can be carried out according to the comparison of predicted energy consumption data and actual recorded energy consumption data. According to the technical scheme, the energy consumption data of an extrusion set in a workshop can be collected in real time, and through analyzing the historical energy consumption data, the energy consumption abnormal phenomena such as energy leakage, overlong standby time and an inappropriate extrusion parameter in production can be detected.

Intelligent bimodule communication electricity meter and centralized meter reading and networking method

Abstract: The invention belongs to the field of intelligent electricity meter communication, and provides an intelligent bimodule communication electricity meter and a centralized meter reading and networking method. The intelligent bimodule communication electricity meter comprises an MCU control module, a switch power module and an externally arranged communication module; the switch power module adopts a power panel comprising an internally arranged communication module; the internally arranged communication module and the externally arranged communication module are communicated with the MCU control module through two corresponding UART serial ports respectively. Bimodule communication of the intelligent electricity meter is achieved through the internally arranged communication module and the externally arranged communication module, the internally arranged communication module and the externally arranged communication module are communicated with the MCU control module through the corresponding UART serial ports respectively, and therefore the problem that in the prior art, data congestion occurs at the data interface end of the electricity meter due to the fact that the two modules adopt one series port is solved.

Smart meters, and systems and method for electrical power reconnection

Abstract: An electrical power system having an electricity meter connected to power lines on one side and a load on the other side, the electricity meter having a processor and memory, a communications module, a sensor, and a service disconnect switch. The system has a communications and control system adapted to send information to the electricity meter and receive information from the electricity meter. The service disconnect switch is locally operable based on a preprogrammed time delay stored in the memory of the electricity meter to restore power in a controlled fashion following a power outage. Electricity meters and electricity reconnection methods are described, as are other aspects.