35results about How to "Improve meter reading success rate" patented technology

The invention discloses a method for locating a meter reading fault source of a low-voltage area. The method is characterized by comprising the following steps of obtaining a meter reading topology structure of the low-voltage area, defining a fault source recognition model, and utilizing the classification recognition method and the input data of the fault source recognition model to locate the fault source according to the topology structure and the meter reading results of meters. The method can locate the meter reading fault point accurately and effectively, and operation staff can remove faults timely and conveniently.

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.

The invention provides a time division and frequency division multiplexing meter reading method and system. The system comprises a concentrator carrier communication module and a plurality of multi-meter acquisition units which are connected with the concentrator carrier communication module through power lines, wherein each multi-meter acquisition unit comprises a power line carrier receiving-transmitting module and a micro-power wireless receiving-transmitting module; and the micro-power wireless receiving-transmitting modules are connected with the plurality of multi-meter acquisition units through micro-power wireless communication modules. The time division and frequency division multiplexing meter reading method and system provided by the invention are combined with power line carrier communication based on time division and micro-power wireless communication based on frequency division, rapid meter reading is realized, the meter reading success rate is improved, and the meter reading efficiency is high.

The invention discloses a monitoring device used for a power user electric energy data acquire system. The monitoring device comprises a single-chip microcomputer, a power supply, an AC sampler, a FLASH memory, a ferroelectric memory, a button, a display screen, a 485 interface, a meter reading router, a wireless network card, an infrared interface and a carrier communication interface. The single-chip microcomputer is respectively connected with the power supply, the AC sampler, the FLASH memory, the ferroelectric memory, the button, the display screen, the 485 interface, the meter reading router, the wireless network card, the infrared interface and the carrier communication interface. The power supply is connected with the AC sampler. According to the monitoring device, data transmitted by a GPRS communication channel, a power line carrier communication channel and an RS485 communication channel can be monitored simultaneously so that the state of the GPRS communication channel, the state of the power line carrier channel and the state of the RS485 link communication can be better understood.

The invention relates to a device for solving the power-carrier meter reading problem caused by a reactive compensation device. An MEC device and a carrier meter-reading concentrator are connected on a three-phase four-wire system circuit between a distribution transformer and user electric energy meters respectively; the device comprises a meter-reading wave-preventing device, the meter-reading wave-preventing device is connected with the MEC device in series, and the MEC device is connected on a three-phase four-wire system circuit between the carrier meter-reading concentrator and the user electric energy meters through the meter-reading wave-preventing device. According to the device for solving the power-carrier meter reading problem caused by the reactive compensation device, the meter-reading wave-preventing device is connected with the MEC device in series, high-frequency signals which are externally emitted by the MEC device and influence carrier meter reading can be inhibited, the meter-reading success rate can be increased accordingly, the problem that power-carrier meter reading is influenced when the MEC devices are applied in a large-scale mode is solved, the industrialization implement scheme is given, and electric-power-system energy-saving reconstruction and power distribution network updating can be achieved.

The present invention discloses a method, an apparatus and a system for collecting electricity consumption information. The method comprises: receiving the carrier wave modulation signal transmitted by at least a sender; according to the carrier wave modulation signal, determining whether the device information of the sender meets a preset condition; displaying the device information of the sender if the device information of the sender meets the preset condition; and according to the device information of the sender, determining the electricity consumption information of the sender. With the method, the apparatus and the system of the present invention, the technical problems that the existing electricity consumption information collection method cannot accurately identify the station area, the operation and maintenance cost is high, and the meter reading success rate is low are solved.

The invention relates to a meter reading method for a power acquisition terminal, and the method comprises the following steps: S1, reading important data of a power utilization terminal on the first day, and turning to S2 if one of judgment conditions is met during reading; if not, continuing to read the important data; S2, reading common data of the power utilization terminal, and calculating a meter reading success rate of the first day; S3, entering the next day, judging whether the meter reading success rate of the previous day is greater than D%, if so, turning to S4; if not, updating the judgment condition, and turning to S4; S4, enabling the power acquisition terminal to read the data of the power utilization terminal in the next day according to the same mode in S1 and S2; S5, in each day later, enabling the power acquisition terminal to read the data of the power utilization terminal according to the same mode in S3 and S4. According to the method, the meter reading speed of the power acquisition terminal is increased, and the meter reading time is shortened.

The invention discloses a self-learning intelligent meter reading method, comprising: establishing a sample library for each electric meter, recording the latest N pieces of meter reading data; calculating the best time period for meter reading according to the N pieces of meter reading data; The meter reading priority is calculated according to the time period; the meters are sorted according to the meter reading priority, and when the meter reading time is reached, the meter is read according to the meter reading priority and the best meter reading time period. The invention also discloses a self-learning intelligent meter reading system. The present invention relates to the technical field of power grid, a self-learning intelligent meter reading method and system, which finds out the most suitable reading time for each electric meter, and reads the meter at the most suitable reading time, so as to achieve the best success rate of meter reading , Effectively improve the success rate of the entire electricity consumption information collection, without increasing the cost of equipment, the increase in the success rate of meter reading can greatly reduce the cost of manual meter reading.

The present application relates to a meter reading method and a meter reading system. By setting the serial numbers of the meters one by one, the sequential and orderly reading of the meters is realized. Before reading each meter, by verifying the meter file corresponding to the meter, you can avoid reading invalid meters, avoid wasting time, and improve the efficiency of reading. When reading each meter, by analyzing the meter reading result returned by the downstream meter reading module, the priority control of meter reading is realized, so that the meter that succeeds in meter reading takes precedence over the meter that fails. It improves the efficiency of meter reading and greatly improves the success rate of meter reading.

A kind of dynamic routing algorithm for power line carrier meter reading according to the present invention adopts the form of broadcast to send request frame and data frame of electric meter, backup redundantly requests frame and data frame of electric meter, thus guarantees that at any moment as long as The power line online meter reading system has a reliable communication path. The concentrator can successfully send the request frame data to the target meter and collect the meter data from the target meter. It has the advantages of real-time performance, stability and high success rate of meter reading. It provides an effective technical guarantee for realizing the value-added power business through the power line carrier channel.

The invention discloses a power line broadband carrier concentrator, which comprises a three-phase coupling transceiver circuit, an orthogonal frequency division multiplexing circuit, an analog front end, a broadband carrier processor, and a path selection module; the three-phase coupling transceiver circuit performs three-phase Carrier coupling and time-division transceiver, and transmission to the OFDM circuit; the OFDM circuit modulates the power signal to a carrier with a fixed frequency bandwidth, and the analog front-end filters and adaptively amplifies the signal , and transmitted to the broadband carrier processor; the broadband carrier processor is connected to the main station through the PLC signal interface; the path selection module is used to calculate the optimal path from the concentrator to several collectors, and perform dynamic routing according to the optimal path. The invention solves the long-standing problems of unstable power line carrier communication technology and large interference, and can greatly improve the transmission rate and timeliness of power terminal data by obtaining the best path from the concentrator to the collector.

The invention relates to a method for solving a low-voltage power line carrier communication island problem. A relay device monitors a carrier channel in real time, when the channel is idle, the relay device sends a broadcast command to electric meters near the relay device, addresses of the electric meters are recognized, and the electric meters around the relay device are classified; when the channel is busy, a concentrator reads the electric meters, the relay device monitors uplink and downlink messages of the concentrator, the uplink and downlink messages are analyzed, the relay device records communication conditions of the electric meters by the aid of communication counters of the electric meters, so that whether the electric meters are in a communication island or not is judged by the aid of the communication counters, and if the electric meters are in the communication island, the relay device is enabled. According to the method for solving the low-voltage power line carrier communication island problem, the carrier channel detection capacity is provided, communication collisions can be avoided, and the meter reading success rate is increased.

The invention discloses a dual-mode communication chip and relates to an information collecting and controlling system in need of low-power wireless and power line communication. The dual-mode communication chip comprises a wireless communication unit, a carrier communication unit, an internal bus and an external bus. The wireless communication unit and carrier communication unit are connected with the external bus through the internal bus, and the wireless communication unit, the carrier communication unit, the internal bus and the external bus are integrated in a single chip. By the arrangement, the defects of low-voltage carrier and micropower wireless are overcome, and success rate of meter reading is greatly improved; an electricity information collecting system is truly practical since circuits of the same are simple in design, performance is improved and cost is reduced.

The invention provides a wireless meter reading system and method. The system comprises a slave concentrator and a master concentrator, wherein a micro powder wireless module of the slave concentrator replaces an original GPRS module and can be used for simulating the GPRS module to be interacted with the slave concentrator, so that connection is built between the slave concentrator and the micro powder wireless module, and data can be normally interacted between the slave concentrator and the micro powder wireless module; after the connection is built between the slave concentrator and the micro powder wireless module, the slave concentrator can send a login message and a heartbeat message for trying the connection building with a server host unit; at the moment, the micro powder wireless module responds to the login message and the heartbeat message, and then the master concentrator simulates the login message and the heartbeat message of the slave concentrator to send messages to the server host unit, so that air resources can be avoided, and the meter reading success rate is increased.