CN201364350Y - Remote centralization meter checking system - Google Patents
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- CN201364350Y CN201364350Y CNU2008201222540U CN200820122254U CN201364350Y CN 201364350 Y CN201364350 Y CN 201364350Y CN U2008201222540 U CNU2008201222540 U CN U2008201222540U CN 200820122254 U CN200820122254 U CN 200820122254U CN 201364350 Y CN201364350 Y CN 201364350Y
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Abstract
The utility model relates to a remote centralization meter checking system, which consists of a main station, a data concentrator and data collecting terminals, and is characterized in that the data concentrator which stays at the central link of the low-voltage carrier-wave centralization meter checking system is connected with the main station and a plurality of inferior data collectors, and is used for controlling the meter checking process and for receiving, storing and transmitting the meter checking data. The remote centralization meter checking system realizes the automatic centralized meter checking, statistics of power consumption, statistics of line loss, setup and settlement of time period, discovering of abnormal situation of the electric meter and charged power consumption control for the power consumption of the user.
Description
Technical field
The utility model relates to remote auto meter reading system.
Background technology
Line of electric force is current the most common, that coverage rate is the widest a kind of physical media, is one by its power network that constitutes and is close to natural physical network.How to utilize the resource potential of power network, under the prerequisite that does not influence electric energy transmitting, power delivery network and communication network being united two into one, make it to become the another communication network after relay letter, phone, wireless telecommunications, the satellite communication, is a focus of scientific and technical personnel's research of technique both at home and abroad for many years.
Electric line carrier communication produces under this background, and it as channel, realizes data transfer and message exchange with power network.Line of electric force is unique wire communication mode that does not need track investment as the transmission medium of carrier signal.
As an emerging application of mechanics of communication, the power carrier communication technology is with its tempting prospect and potential great market and be World Focusing.China takes to the electric line carrier communication Study on Technology from the fifties in last century.After the initial stage nineties, the demand of power line carrier technology is along with Chinese economic development further enlarges.At present, this technology begins to be applied to fields such as household automation, remote meter reading, broadband access network.Expert introduction if will realize robotization control, adopts the power carrier communication mode can reach the effect of getting twice the result with half the effort at some industrial circles that disturb big, difficult wiring, and therefore, power network is called " Kingsoft of not excavated " again.
Along with the development of carrier communication makes the remote concentrated ammeter reading The Application of Technology be achieved.Adopt traditional meter reading method manually to copy power taking energy data from house to house, have following problem inevitably: statistics is inaccurate, can't truly reflect user situation; Operation is difficult to standardization, causes unexplained loss to increase; Data acquisition is untimely, can't reflect the operation of power networks situation in real time, can not carry out effective monitoring to user behavior; And labor intensive is many, the cost height, and efficient is low.Obviously, above-mentioned drawback makes the manual metering management mode can not adapt to the reform of electric power system, has also directly hindered such as the tou power price operation, has paid the implementation of advanced management modes such as the electricity charge in advance.Automatic meter reading system progressively grows up under the anxious active demand for the treatment of progress, reforming in technology and aspect managing two.
The utility model content
In order to overcome above-mentioned defective, the purpose of this utility model provides remote auto meter reading system.
To achieve these goals, the utility model adopts following technical scheme:
Remote auto meter reading system be with automatic data collection, transmission and processing be applied to electric energy for use with management system in a new technology.
Remote auto meter reading system mainly is made up of main website, concentrator, acquisition terminal, wherein data concentrator is the key link of low pressure carrier wave automatic meter reading system, it connects main website and the next a plurality of data acquisition unit, is responsible for the control of the process of checking meter and the reception storage and transmission of meter reading data.
Collector mainly partly is made up of AC/DC conversion, power carrier chip PL2102 and peripheral circuit, Philip 51 Series MCU, 485 telecommunication circuits, FeRAM memory chip FM24C16, and Philip 51 Series MCU connect AC/DC conversion, power carrier chip PL2102 and peripheral circuit, 485 telecommunication circuits, FeRAM memory chip FM24C16 respectively.
Concentrator mainly is made up of power supply, carrier communication, governor circuit and storage, communications portion, and governor circuit connects power supply, carrier communication, storage, communication respectively.
The principle of work of automatic meter reading system:
Main website---GPRS/GSM/PTSN---concentrator-carrier wave-acquisition terminal-485-is second type of technical manual with 485 mouthfuls of electric energy meters.Concentrator has the infrared mouth of copying and accepting, and uses for the local copy reading of write by hand device.Communicate by letter with 485 twisted-pair feeders between acquisition terminal and 485 electric energy meters, communicate by power line carrier between acquisition terminal and the concentrator.
System has open network structure, guarantees the expandability of system and interconnected with other network systems.Hardware, software are pressed the modular mode design, can carry out flexible configuration according to the needs of system extension.
The communication of concentrator and main website is by built-in communication module data transmission channel swap data, reception instruction; Carry out communication with the next ammeter end data acquisition terminal by the electric line carrier communication mode.The number of users of concentrator management is 1024 families, and concentrator begins and each acquisition terminal communication when the integral point by certain time interval, copies the information about power that back production collection terminal is gathered.Comprise current electric quantity, of that month peak load value and time of origin thereof.Concentrator can generate zero automatically and copy data, and every month once, is used to calculate user's moon power consumption.By the main website appointed day (1-28 day) is zero to copy day, arriving zero every month copies a day zero point, all users' that concentrator has just been gathered the last time current electric quantity data backup is preserved, and is referred to as zero and copies data, and main website can calculate each user's moon power consumption according to adjacent two months zero differences of copying data.Concentrator is preserved each user data of copying back for the last time every day automatically, and the difference of per two days data is this user's a daily power consumption, preserves nearest 3 months daily power consumption of each user in the concentrator, copies and accepts for main website.Concentrator can generate ammeter and stop walking record, and each user's daily power consumption is compared inspection, and not electricity consumption that the user surpasses 7 days is regarded this electric supply meter as and stopped walking, and writes down it and stops walking the initial and termination time, copies and accepts for main website.Concentrator is according to the freeze-off time of main website appointment, the issue freeze command is to each acquisition terminal, automatically copy and accept behind the arrival freeze-off time and freeze electric weight, copy and accept for main website, to the platform district of summary table is installed, main website can freeze to instruct and copy and accept and freeze electric weight by repeatedly issuing, and accurately calculates this district interior line loss of section sometime.According to copying and accepting situation, concentrator can generate automatically, adjusts, preserve relay route, guarantees that 100% copies rate.After concentrator is received disconnected/electrical instruction that main website sends, can be at once according to the nearest relaying approach in the internal memory, by the power line carrier mode will break/electrical instruction is issued to acquisition terminal and circuit breaker, realize user's remote auto disconnected/energising control, and in time with the operation result uploading main website.
Data collection station is to be used to gather user's electrical energy meter electricity energy information, and can will by channel data be sent to the specialized equipment of upper level equipment behind the treated with same.Acquisition terminal is the mixed type terminal, and hybrid terminal can be gathered single rate pulse meter can gather the ammeter that has 485 communication functions again.Acquisition terminal generally is installed in user's electric energy meter next door or the same table case, can gather the electric energy information of 16 user's electric energy meters.Terminal can external circuit breaker, accepts the concentrator instruction, implements disconnected/energising electricity operation.The acquisition terminal acquisition pulse is converted to charge value preservation or every interval 5 minutes and ammeter communication once, in time refresh the current electric quantity value of preserving ammeter, and calculate relatively and preserve each user's of that month peak load value and time of origin thereof by the electric weight difference between each 5 minutes, collector also can receive the order of concentrator, produces and preserve the charge value of each user's unified fixed time.The collector clock also has power down data hold function, and every day is when carrying out at least once the school to it automatically by concentrator.
Remote concentrated ammeter reading of the present utility model has following characteristics:
1, the user power utilization amount is carried out automatic centralized automatic meter-reading
This is the automatic meter reading system most important function.Be contained in the electric energy number of the acquisition terminal copy reading table meter of table meter side, pass through low voltage power line carrier by the concentrator that is loaded on distribution transforming place, automatically copy and accept by the time of checking meter that management of power use department is provided with, the main website that is positioned at management of power use department can extract the subscriber's meter reading to concentrator by GPRS/GSM, relatively can obtain this month user power utilization amount by statistics.After automatic meter reading system is installed, can progressively substitute original manual metering, meter reading personnel's job function also will forward the inspection of electricity charge collection and electricity consumption situation to and handle, and copy and accept and settle accounts fee collection into the user automatically by what check meter day, for the electricity consumption clearing provide convenience and foundation accurately.
2, electricity consumption quantitative statistics
Electricity consumption department is orderly power supply to the monitoring of user's electricity requirement, one of important assurance of safety utilization of electric power, automatic meter reading system can be measured the time that generates and preserve of that month peak load value automatically and taken place to each user's requirement value (was that unit carries out interval calculation with 5 minutes).Whether the peak load value can be judged as the important evidence that the ammeter that causes because of overload and circuit burn out, and management of power use department can require user's increase-volume and change ammeter etc. according to the peak load value, and the payment corresponding cost.The time that peak load took place, can regard time that peak of power consumption took place of the civilian electricity in certain district or certain zone as, like this for power scheduling provides scientific basis, make operation of power networks more interesting in safe and reasonable.
3, the statistics of line loss
The measurement of line loss is the important content of power supply management, the line loss statistics is only all measured ability accurately simultaneously at electric energy supply top and electric terminal to the statistics circuit accurately, and under original manual metering situation be can't accomplish simultaneously-measured, the freezing function that automatic meter reading system had provides guarantee for this measurement, management of power use department issues freeze command (freeze-off time) by concentrator, after all terminals of this TV station district receive order, can generate freezing data simultaneously, copy and accept for concentrator, management of power use department preserves, just can calculate various line losses accurately (as the day line loss by multi-pass operations, all line losses, month line loss etc.)
4, the setting of period and clearing
Power supply department desires to make the electricity consumption interest in reasonably stability, reduce the difference of peak, flat, paddy, then can carry out rate setting and the clearing of peak, flat, paddy by the different periods to residential electricity consumption, the CGZ075 automatic meter reading system that my company produces has possessed time-sharing facility, can divide 48 periods in one day, can be provided with arbitrarily.
5, the discovery of ammeter abnormal conditions
There is certain blindness in traditional power utility check work, and he often can only or have the people to report by surprise check just to find electricity filching behavior.Automatic meter reading system builds up after the back, analyzes by the electricity consumption data to each user, and situation can note abnormalities.Stop walking more than the week as ammeter, this month electric weight with last month electric weight compare and undergo mutation ± 30% scope, system can send alarm, management of power use department can carry out the abnormal conditions analysis and judgement rapidly, respective handling is examined and is made in inspection.Therefore, automatic meter reading system is the important means that electricity consumption order seriousness is guaranteed.
6, electric charge payment control
It is the important step of the power supply department management of power use that electricity consumption is paid the fees, and also is the major issue that at first relates to national policy.The development of automatic meter reading system makes the realization of " electric charge payment control " function become possibility, and automatic meter reading system can be according to the requirement of each power supply department.Specifying certain year arbitrarily in such a month, and on such a day is zero copying day, and the user power utilization amount is unified to copy and accept, and can directly be connected copying data with the marketing system of management of power use department, and it is single that printed invoice need not artificial input system.Carry out the electric fees charging clearing by bank outlets then.If the user does not arrive the bank paying electricity charge at the appointed time, power supply department can be paid the fees to superintend and direct and be urged and the warning that has a power failure, when user's malice label expense or other abnormal conditions occurring, power supply department can carry out long-range power operation separately to this user by automatic meter reading system, but remote recovery was switched on after the user paid the electricity charge.Realize the electric charge payment control function, except that acquisition terminal is housed, also need install circuit breaking controller additional, make the management of power use realize closed-loop control at user side.
Description of drawings
Fig. 1 is a functional-block diagram of the present utility model;
Fig. 2 is the collector functional-block diagram;
Fig. 3 is the concentrator functional-block diagram;
Fig. 4 is the carrier wave front end circuit;
Fig. 5 is the power unit circuit theory diagrams;
Fig. 6 is the connecting circuit of carrier chip and main control chip;
Fig. 7 is the governor circuit schematic diagram;
Fig. 8 is carrier wave and memory circuit circuit theory diagrams;
Fig. 9 is the clock schematic diagram;
Figure 10 is the communications portion circuit theory diagrams.
Specific embodiments
The utility model is described in further detail below in conjunction with embodiment:
With reference to shown in Figure 1, remote auto meter reading system mainly is made up of main website 1, concentrator 2, collector 3.Wherein data concentrator 2 is key links of low pressure carrier wave automatic meter reading system, and it connects main website and the next a plurality of data acquisition unit 3, is responsible for the control of the process of checking meter and the reception storage and transmission of meter reading data.
(1), collector
Shown in Fig. 2,4,5,6, this collector 3 mainly partly is made up of AC/DC conversion 4, power carrier chip PL2102 and peripheral circuit 5, Philip 51 Series MCU, 6,485 telecommunication circuits 7, FeRAM memory chip FM24C168, and Philip 51 Series MCU 6 connect AC/DC conversion 4, power carrier chip PL2102 and peripheral circuit 5,485 telecommunication circuits 7, FeRAM memory chip FM24C168 respectively.Collector mainly is to communicate by 485 modes and ammeter in the time of setting, obtain the data of the required ammeter number of degrees, be kept in the collector, when concentrator reads the desired data requirement by the power line carrier transmission, the data of storage uploaded up by power line carrier.
1, the power supply of collector adopts Alternating Current Power Supply, and direct current component adopts the AC transformer step-down, is made into direct current by the bridge heap again and uses for chip, and the reason one that adopts Alternating Current Power Supply is that power taking is convenient, and the 2nd, adopt the power line carrier, PLC mode with communicating by letter of upper concentrator.Need not like this increases the backguy link, is convenient to construction, directly utilizes ready-made power line network transmission data;
2, the power carrier chip adopts the special electric power carrier chip PL2102B of Beijing journey company lucky star dawn, it is the low voltage power line carrier chip of being developed at China Power net rugged environment especially, owing to adopted new technologies such as direct sequence spread spectrum, digital signal processing, Direct Digital frequency synthesis, and adopt large scale digital/simulation to mix 0.35um CMOS technology and make, so with similar products at home and abroad outstanding performance is arranged at anti-interference and anti fading performance;
3, main control chip adopts the P89V51RD2FA of Philip, adopt the 80C51 core processing unit, RAM with 64K Flash and 1K, particularly has the X2 characteristic, when selecting the X2 mode for use, can under identical clock frequency, obtain 2 times the tolerance that gulps down, therefore can be under the situation that clock reduces by half, obtain identical performance, therefore can reduce electromagnetic interference (EMI) greatly, programming (IAP) in Flash back-up system online programming (ISP) and the application allows in use program storage to be reconfigured;
4, all have 485 functions basically in view of present ammeter, adopt 485 communication modes and adopted pulse mode to have the reliability height in the past, ammeter number of degrees degree of accuracy height, the characteristics that image data is abundant, so the collector of our company's design adopts 485 modes with communicating by letter of ammeter, and according to different ammeters, the difference between the different provinces, the built-in different stipulations of 8 clocks, realized with market on communicating by letter between most ammeters;
5, storage compartment adopts U.S.'s Ramtron company ferroelectric memory (FRAM), and ferroelectric memory and traditional E2PROM mainly contain following advantage by comparison:
(1) FRAM has the high speed reads write performance, and waits for without any need for time-delay writing the back, and 5～10ms's wait the pending data write time and E2PROM generally wants after writing;
(2) FRAM has the intimate unlimited life-span that writes.The life-span of general E2PROM is write fashionable at 100,000 to 1,000,000 times, and the ferroelectric memory of a new generation reached 100,000,000 hundred million times write the life-span.
(3) FRAM is low in energy consumption, and writing with big electric current at a slow speed of E2PROM makes its energy that need exceed 2500 times of FRAM go to write each byte.
Meet voltage dependent resistor (VDR) TMD1 and gas-discharge tube ZV1 before the transformer T2; form holding circuit; the high pressure that can bear 4KV is not damaged; voltage dependent resistor (VDR) is shorted to ground when voltage surpasses 470V; thereby protected back-end circuit; when voltage recovers normal, then voltage dependent resistor (VDR) keeps high resistant, does not influence the back circuit working.220V passes through transformer (220:15) isolated buck to 15V, be made into direct current about 17V by bridge heap B1 again, by LC (C16, L5) further rectifying and wave-filtering, be that the serial ports of single-chip microcomputer converts the output of 485 level to through chip 75176 by required 5V voltage 485 circuit of LM2940 output master element then, finish communication with ammeter.Being specially the transmission pin finishes the transmission of chip 75176 and the control of acceptance simultaneously by triode (Q5) 9014, the output high level causes the triode conducting, 75176 2 pin step-down level, 75176 accept to enable, and transmission is forbidden, when sending pin is low level, triode ends, and 75176 3 pin become high level by drawing on the R22 resistance, transmission enables, and accepts to forbid.So just can carry out 485 communications with ammeter.(TV4) protection chip 75176 is not broken by high pressure three bi-directional voltage stabilizing pipes of rear end for TV2, TV3.
Carrier wave front end circuit: the solution that adopts Beijing lucky star Xiao Cheng
Carrier chip and MCU circuit
Carrier information is by chip PL2101B demodulation, again by SPI (5,6,7 pin) and the mode and the single-chip microcomputer that interrupt (9 pin) carry out communication, wherein when PL2101 receives data, 9 pin drag down level, trigger singlechip interruption, remind single-chip microcomputer to receive data, this moment 5, data between 6,7 pin are finished transmit; PL2101 has the function of house dog and voltage detecting simultaneously, and when voltage dropped to predetermined value, pin 22 timely output low levels triggered singlechip interruption, and single-chip microcomputer carries out data at once to be preserved, and when single chip microcomputer halt, 10 pin output low levels trigger single-chip microcomputer and reset.Single-chip microcomputer adopts the mode ( pin 2,3,4) of IIC to link to each other with FM24C16, stores the data among the FM24C16.
(2), concentrator
As shown in Figure 3, this concentrator mainly by power supply 9, carrier communication 10, master control and store 11, communication 12 etc. partly forms, master control and store and 11 connect power supply 9, carrier communication 10 respectively, communicate by letter 12.Concentrator is the hinge that connects main website and collector, concentrator all collects the data of the collector in a platform district by power line carrier, the mode of packing then by telephone wire, GSM or GPRS uploads to main website, just can finish the task of checking meter in strange land thereby reach the family of staying indoor.Concentrator is responsible for the collection of some data at ordinary times, gathers and stores, and can store at most as required to reach trimestral various historical data, as the ammeter reading, freezing data so that main website reads as required at any time, convenient is calculated line loss, finds power stealing, is calculated with electrobalance etc.
Shown in Fig. 7～10, data acquisition: the collection of 232 pattern carrier data, carrier signal is handled the back by RXD_ZB at power panel, and data transmit-receive is carried out in TXD ZB interface and master control board, and RXD ZB becomes TXD6 with TXD_ZB by level conversion, RXD6.TXD6, RXD6 changes serial port chip SC16IS7521 by SPI, converts SPI interface and LPC2214 to and carries out the carrier data communication.
2,485 pattern summary table data acquisitions, the summary table data are by 485 mouthfuls of 4851_A, and data transmit-receive is carried out in 4851_B interface and master control board.4851A, 4851B is by 485 conversion chip U36 (MAX485) output 485RO1,485TO1, to RXD4, TXD4 end, RXD4, TXD4 transfer data to RXD5, TXD5 by extended chip 74LV4066 by light lotus root isolating chip U31, U32 (6N136) transceive data for 485RO1,485TO1.TXD5, RXD5 changes serial port chip SC16IS7521 by SPI, converts SPI interface and LPC2214 to and carries out the summary table data communication.
Data are preserved: LPC2214 finishes the storage process of data to U41, U42 storaging chip (AT45DB321) operation by standard SPI interface AT CS, AT SCK, AT SI, AT SO
Data transmission: LPC2214 is connected the transmission of finishing data and host computer by RXD3, TXD3 interface with communication board.
1, the power unit major function of concentrator is to insert three-phase alternating current, obtains required direct supply by the conversion of AC/DC switch power module, and the reason one that adopts Alternating Current Power Supply is that power taking is convenient, the 2nd, adopt the power line carrier, PLC mode with communicating by letter of collector.Need not like this increases the backguy link, is convenient to construction, directly utilizes ready-made power line network transmission data;
2, the carrier communication part is by carrier current channel, carrier processing two parts are formed, carrier current channel adopts the special electric power carrier chip PL2102B of Beijing journey company lucky star dawn, it is the low voltage power line carrier chip of being developed at China Power net rugged environment especially, owing to adopted new technologies such as direct sequence spread spectrum, digital signal processing, Direct Digital frequency synthesis, and adopt large scale digital/simulation to mix 0.35um CMOS technology and make, so with similar products at home and abroad outstanding performance is arranged at anti-interference and anti fading performance; The processing section of carrier wave mainly is made of 89C2051 and the peripheral circuit of single chip computer AT MEL, be responsible for acceptance specially and catch next collector data by power carrier, send to the concentrator main control part with serial mode, with the transmission data of accepting main control part by the mode of serial ports, the mode with power carrier is handed down to collector again.Adopt special carrier communication part can allow the wholwe-hearted deal with data of master control department, share the pressure of main control part.
3, main control chip adopts the LPC2214 of Philip, it is the microprocessor that adopts 16/32 ARM7TDMI-S CPU, have less encapsulation and extremely low power consumption, characteristics with high-performance low-power-consumption, be particularly suitable for Industry Control, LPC2214 has Flash in static 16K RAM and the 256K sheet, owing to used pipelining, but all continuous workings of all parts of processing and storage system, can realize very high instruction throughput, ARM7TDMI has adopted a unique texture strategy that is called as THUMB, 16 bit instruction length of THUMB instruction set make it can reach the density of standard A RM code twice, but still keep the advantage on most of performances of ARM, the THUMB code only is 65% of an ARM code, but its performance be equivalent to 16 storage systems identical arm processor performance 160%, the AT45DB321C of ATMEL is adopted in the storage of data, a slice can be stored the 4M byte, and the data storage of 2 8M satisfies the needs of all data storage and backup altogether;
4, communications portion leaves 485 interfaces and RS232 interface, 485 interfaces can directly link to each other with ammeter, directly gather ammeter data, the RS232 interface can connect modulator-demodular unit (being used for telephone wire) or mobile module (GSM or GPRS) as required, so that communicate with main website, finish uploading at last of data.
Three, the actual effect that in distribution automation, risen of remote auto meter reading system
Automatic meter reading system role in the management of power use comprises that mainly electrical network need for electricity statistics, electrical network need for electricity guarantee, electrical network electricity consumption loss is added up, electric weight is copied and accepted and fee and client's query portion.Because existing copying and accepting is in artificial or " on the whole " state, used automatic meter reading system thereby solved complicate statistics and copied and accepted the accuracy that is difficult to accomplish.Shorten the cycle of checking meter simultaneously, improved efficiency.
Systems technology functional test report:
At last, should be pointed out that above embodiment only is the more representational example of the utility model.Obviously, the technical solution of the utility model is not limited to the foregoing description, and many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from the disclosed content of the utility model all should be thought protection domain of the present utility model.
Claims (3)
1, remote auto meter reading system mainly is made up of main website, data concentrator, data collection station, it is characterized in that: the data concentrator of the key link of low pressure carrier wave automatic meter reading system connects main website and the next a plurality of data acquisition unit, is responsible for the control of the process of checking meter and the reception storage and transmission of meter reading data.
2, remote auto meter reading system according to claim 1, it is characterized in that: collector mainly partly is made up of AC/DC conversion, power carrier chip PL2102 and peripheral circuit, Philip 51 Series MCU, 485 telecommunication circuits, FeRAM memory chip FM24C16, and Philip 51 Series MCU connect AC/DC conversion, power carrier chip PL2102 and peripheral circuit, 485 telecommunication circuits, FeRAM memory chip FM24C16 respectively.
3, remote auto meter reading system according to claim 1 is characterized in that: concentrator mainly is made up of power supply, carrier communication, governor circuit and storage, communications portion, and governor circuit connects power supply, carrier communication, storage, communication respectively.
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| CNU2008201222540U CN201364350Y (en) | 2008-07-31 | 2008-07-31 | Remote centralization meter checking system |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102253279A (en) * | 2011-06-03 | 2011-11-23 | 青岛乾程电子科技有限公司 | Reliable data storage type multifunctional electric meter |
| CN102855743A (en) * | 2011-06-30 | 2013-01-02 | 北京新媒传信科技有限公司 | Meter reading system and method |
| CN103514730A (en) * | 2012-06-21 | 2014-01-15 | 深圳市金正方科技有限公司 | Power line carrier meter reading method and system |
| CN104468765A (en) * | 2014-12-02 | 2015-03-25 | 无锡神州绿海信息技术有限公司 | Environmental temperature and humidity collecting system based on PLC power line carriers |
| CN105301351A (en) * | 2015-12-04 | 2016-02-03 | 中国电力科学研究院 | Power supply alternating current acquisition module for power consumption information acquisition system modularization terminal |
| CN105372466A (en) * | 2015-11-16 | 2016-03-02 | 三峡大学 | Anti-remote control power stealing intelligent ammeter |
| CN105608875A (en) * | 2016-01-12 | 2016-05-25 | 浙江共同电子科技有限公司 | Electric power centralized reading system |
| CN105845007A (en) * | 2016-06-13 | 2016-08-10 | 国网辽宁省电力有限公司朝阳供电公司 | Intelligent electric energy meter simulation application test stand and use method thereof |
| CN106066416A (en) * | 2016-07-29 | 2016-11-02 | 国网山西省电力公司大同供电公司 | A kind of intelligent electric meter based on mobile Internet |
| CN107462265A (en) * | 2017-07-21 | 2017-12-12 | 国网浙江省电力公司 | A kind of electric energy meter requirement abnormality judgment method based on analysis of data collected |
| CN111239675A (en) * | 2020-02-24 | 2020-06-05 | 云南电网有限责任公司电力科学研究院 | Multi-meter parallel traversal test method and system for multi-core module electric energy meter minute freezing |
| CN111798655A (en) * | 2020-05-29 | 2020-10-20 | 国网江苏省电力有限公司信息通信分公司 | Operation data minute-level acquisition method suitable for power Internet of things platform area |
| CN112261122A (en) * | 2020-10-20 | 2021-01-22 | 云南电网有限责任公司 | Sharing economic mode meter reading method based on intelligent data acquisition unit and intelligent data acquisition unit |
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- 2008-07-31 CN CNU2008201222540U patent/CN201364350Y/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102253279A (en) * | 2011-06-03 | 2011-11-23 | 青岛乾程电子科技有限公司 | Reliable data storage type multifunctional electric meter |
| CN102855743A (en) * | 2011-06-30 | 2013-01-02 | 北京新媒传信科技有限公司 | Meter reading system and method |
| CN103514730A (en) * | 2012-06-21 | 2014-01-15 | 深圳市金正方科技有限公司 | Power line carrier meter reading method and system |
| CN104468765A (en) * | 2014-12-02 | 2015-03-25 | 无锡神州绿海信息技术有限公司 | Environmental temperature and humidity collecting system based on PLC power line carriers |
| CN105372466A (en) * | 2015-11-16 | 2016-03-02 | 三峡大学 | Anti-remote control power stealing intelligent ammeter |
| CN105301351A (en) * | 2015-12-04 | 2016-02-03 | 中国电力科学研究院 | Power supply alternating current acquisition module for power consumption information acquisition system modularization terminal |
| CN105608875A (en) * | 2016-01-12 | 2016-05-25 | 浙江共同电子科技有限公司 | Electric power centralized reading system |
| CN105845007A (en) * | 2016-06-13 | 2016-08-10 | 国网辽宁省电力有限公司朝阳供电公司 | Intelligent electric energy meter simulation application test stand and use method thereof |
| CN106066416A (en) * | 2016-07-29 | 2016-11-02 | 国网山西省电力公司大同供电公司 | A kind of intelligent electric meter based on mobile Internet |
| CN107462265A (en) * | 2017-07-21 | 2017-12-12 | 国网浙江省电力公司 | A kind of electric energy meter requirement abnormality judgment method based on analysis of data collected |
| CN111239675A (en) * | 2020-02-24 | 2020-06-05 | 云南电网有限责任公司电力科学研究院 | Multi-meter parallel traversal test method and system for multi-core module electric energy meter minute freezing |
| CN111239675B (en) * | 2020-02-24 | 2022-04-12 | 云南电网有限责任公司电力科学研究院 | Multi-meter parallel traversal test method and system for multi-core module electric energy meter minute freezing |
| CN111798655A (en) * | 2020-05-29 | 2020-10-20 | 国网江苏省电力有限公司信息通信分公司 | Operation data minute-level acquisition method suitable for power Internet of things platform area |
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