CN201796087U - State grid three-phase remote bill control intelligent electric energy meter - Google Patents

State grid three-phase remote bill control intelligent electric energy meter Download PDF

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Publication number
CN201796087U
CN201796087U CN2010205257067U CN201020525706U CN201796087U CN 201796087 U CN201796087 U CN 201796087U CN 2010205257067 U CN2010205257067 U CN 2010205257067U CN 201020525706 U CN201020525706 U CN 201020525706U CN 201796087 U CN201796087 U CN 201796087U
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electric energy
energy meter
signal processing
digital signal
module
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CN2010205257067U
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Chinese (zh)
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高伟
杨忠存
陈贤泽
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SHENZHEN SENHUI ELECTRONICS Co Ltd
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SHENZHEN SENHUI ELECTRONICS Co Ltd
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Abstract

The utility model discloses a state grid three-phase remote bill control intelligent electric energy meter, which comprises a voltage sampling module, a current sampling module, an electric energy metering chip, a digital signal processing chip, a display module and an incident record module for recording and storing all status information of the electric energy meter. The voltage sampling module and the current sampling module are both connected with the electric energy metering chip, the electric energy metering chip is connected with the digital signal processing chip, and the digital signal processing chip is connected with the incident record module and the display module. The state grid three-phase remote bill control intelligent electric energy meter can realize electric energy metering, information storage and processing, real-time monitoring and information exchange functions.

Description

The long-range control intelligent electric energy meter that takes of a kind of state net three-phase
Technical field
The utility model relates to a kind of electric energy meter, the long-range control intelligent electric energy meter that takes of in particular a kind of state net three-phase.
Background technology
Some electric energy meters of existing electric energy meter for a certain reason, for example: be subjected to the over-voltage protection of thunder and lightning and break down, the phenomenon of not having good luck occurs, and this moment, user power utilization was unaffected, can normal electricity consumption.Will impact to charge like this.In addition, along with the continuous expansion of the function of existing electric energy meter, the ability of the deal with data of much electricity table can not satisfy the demand of function expansion.
Therefore, prior art has yet to be improved and developed.
The utility model content
The purpose of this utility model is to provide the long-range expense control of a kind of three-phase intelligent electric energy meter, when being intended to solve existing electric energy meter generation emergency or fault, and the problem that while control end in time, and data processing energy falls behind.
The technical solution of the utility model is as follows:
The long-range control intelligent electric energy meter that takes of a kind of state net three-phase, comprise voltage sample module, current sample module, electric energy computation chip, digital signal processing chip, display module, it also comprises a record and permanent logout module of preserving all status informations of electric energy meter; Described voltage sample module is connected electric energy computation chip respectively with the current sample module, and described electric energy computation chip connects digital signal processing chip, described digital signal processing chip connection event logging modle and display module.
The long-range control intelligent electric energy meter that takes of described state net three-phase, wherein, described electric energy meter also comprises infrared interface, described infrared interface connects described digital signal processing chip.
The long-range control intelligent electric energy meter that takes of described state net three-phase, wherein, described electric energy meter also comprises a serial communication interface, described serial communication interface connects described digital signal processing chip.
The long-range control intelligent electric energy meter that takes of described state net three-phase, wherein, described electric energy meter also comprises the carrier communication interface, described carrier communication interface connects described digital signal processing chip.
The long-range control intelligent electric energy meter that takes of described state net three-phase, wherein, described electric energy meter also comprises key-press module, described key-press module connects described digital signal processing chip.
The long-range control intelligent electric energy meter that takes of described state net three-phase, wherein, described electric energy meter also comprises an Infrared remote controller, described Infrared remote controller communicates and controls described electric energy meter by infrared interface and electric energy meter.
The long-range control intelligent electric energy meter that takes of described state net three-phase, wherein, described electric energy meter also comprises the storer of storage of electrical energy table electric energy data, described storer connects described digital signal processing chip.
The long-range control intelligent electric energy meter that takes of described state net three-phase, wherein, described electric energy meter also comprises the embedded-type security authentication module of the transmission data of guaranteeing that electric energy meter is safe and reliable, described security authentication module connects described digital signal processing chip.
The beneficial effects of the utility model: the utility model is by having adopted ultra-large digital signal processing chip, forever having preserved the technology such as logout module, 485 communications and infrared communication of information.Make existing electric energy meter have functions such as electrical energy metering, information stores and processing, monitoring in real time, information interaction.
Description of drawings
Fig. 1 is the theory diagram of electric energy meter in the utility model;
Fig. 2 is the LCD display interface reference diagram of electric energy meter in the utility model.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, clear and definite, below the utility model is further described with reference to the accompanying drawing embodiment that develops simultaneously.
Figure 1 shows that the theory diagram of electric energy meter, the long-range control intelligent electric energy meter that takes of state's net three-phase, comprise voltage sample module, current sample module, electric energy computation chip, digital signal processing chip, display module, also comprise a record and permanent logout module of preserving all status informations of electric energy meter; Described voltage sample module is connected electric energy computation chip respectively with the current sample module, and described electric energy computation chip connects digital signal processing chip, described digital signal processing chip connection event logging modle and display module.Also comprise infrared interface, described infrared interface connects described digital signal processing chip.Described electric energy meter also comprises a serial communication interface, and described serial communication interface connects described digital signal processing chip.Described serial communication interface is the RS485 communication interface.Described electric energy meter also comprises the carrier communication interface, and described carrier communication interface connects described digital signal processing chip.Described electric energy meter also comprises key-press module, and described key-press module connects described digital signal processing chip.Described electric energy meter also comprises an Infrared remote controller or palm PC, and described Infrared remote controller and palm PC communicate the described electric energy meter of control by infrared interface and electric energy meter.Described electric energy meter also comprises the storer of storage of electrical energy table electric energy data, and described storer connects described digital signal processing chip.Described electric energy meter also comprises the embedded-type security authentication module of the transmission data of guaranteeing that electric energy meter is safe and reliable, and described security authentication module connects described digital signal processing chip.The power supply that described electric energy meter also includes the described electric energy meter of power management module obtains from three phase network, manages by power management module.
Electric energy meter when work, voltage, electric current through voltage sample module and current sample module respectively to three-phase circuit voltage V separately A, V B, V CWith three-phase circuit electric current I separately A, I B, I CAfter the sampling, send into electric energy computation chip, and handle special IC after multiplying by the electric energy in the electric energy computation chip, delivering to digital signal processing chip handles, at last, digital signal processing chip is delivered to data processed output devices such as display module, communication module as required, and by described logout module HC hard copy is carried out in all states and the operation of electric energy meter simultaneously.Described electric energy meter also includes input equipment such as key-press module and is used for showing and communication module is selected and controlled.
The electric energy metrical function of described intelligent electric energy meter comprises:
(1) has meritorious, the reverse active energy of forward, four-quadrant reactive energy function of measuring, and the meritorious and combination reactive energy of combination can be set in view of the above.
(2) outside the decapacitation of four-quadrant reactive energy is write down respectively, shown, also can realize calculating, record, the demonstration of combination idle 1 and combination idle 2 by software programming.(annotate: circulation shows that combination idle 1 and combination are idle 2, but can by showing and gathering the idle amount of four-quadrant)
(3) have the time-sharing measurement function, can add up, store total, point, peak by the corresponding period respectively, put down, paddy active energy, reactive energy.
(4) has metering phase-splitting active energy function.
(5) can store 12 name day electric quantity datas, the clearing time can be set at the integral point moment of any given day per month.
(6) parameter of electric energy meter can be set as required; The electric flux parameter can get end degree value is set, can only zero clearing; Zero clearing must be used the hardware programming key.
The measurement content of described intelligent electric energy meter comprises:
(1) measure the date and time of two-way a maximum demand, a maximum demand and appearance thereof at times, and target data during file.
(2) the greatest requirements value can carry out zero clearing by manual or use meter-copy device.
(3) a maximum demand is measured and is adopted the slippage mode, and demand cycle and slippage time can be provided with.The factory-default of the electric energy meter that present embodiment provides is: demand cycle 15min, slippage time 1min.
(4) when situations such as the generation voltage circuit powers on, period conversion, zero clearing, clock adjustment, electric energy meter is from current time, carry out demand according to the demand cycle and measure, after first demand cycle finishes, begin a maximum demand at interval by slippage and measure.In cycle, do not do the record of a maximum demand an incomplete demand.
(5) 12 name day a maximum demand data of storage.
The displaying contents of the display module of described intelligent electric energy meter comprises:
(1) the electric energy meter displaying contents comprises main video data, auxiliary reveal codes and two aspects of Chinese character; The corresponding reveal codes of displaying contents is referring to the display interface reference diagram of Fig. 2 and the explicit declaration of table 1.
Figure BSA00000266454700051
Table 1
(2) show to be divided into following automatically and show and button shows dual mode that display items display can be provided with on request.LCD should start mode backlight when button showed.The circulation display cycle can be provided with in the scope at 5~20 seconds, and default value is 5 seconds.
(3) has the abnormal prompt function.When unusual (as: decompression, the serious imbalance of electric current, the phase failure, negative phase sequence etc.) appear in the electric energy meter operation, show to rest on this code, and carry out light simultaneously and report to the police.The code of makeing mistakes comprises following fault: clock mistake, storage failure or damage.
The clock setting of described intelligent electric energy meter, period setting and rate are provided with function and comprise:
(1) adopts the built in hardware clock circuit, have calendar, timing and leap year automatic switching function.Internal clocking terminal output frequency is 1Hz.
(2) have two cover tariff period, can realize that two overlap the automatic switchover of tariff period by setting in advance the time.Every cover tariff period can be provided with 2 time zones the whole year at least, and 8 periods can be set in 24 hours at least, and the period minimum interval is 15 minutes, and the time spacer segment greater than the requirement periodic quantity of setting in the table, the period can cross over reset.
Function comprises during the school of described intelligent electric energy meter:
(1) by RS485, communication interface such as infrared can be to the electric energy meter school time, during except that the broadcasting school, must under programming state, just can carry out during the school.
Key and the signcode of need not to programme when (2) broadcasting the school cooperates, and only allow once every day, and scope must not be greater than 5min during the acceptable broadcasting of electric energy meter school; When correction time during greater than 5min, electric energy meter has only when carrying out the school by the scene.
The measurement and the monitoring function of described intelligent electric energy meter comprise:
(1) total operational factors such as each minute phase voltage, electric current, power, power factor that reach of energy measurement, record, the current electric energy meter of demonstration.Measuring error (fiducial error) is no more than ± and 1%.
(2) provide out-of-limit monitoring function, can limit value is set and monitor parameters such as line (phase) voltage, electric current, power factors, when certain parameter exceeds or be lower than the limit value of setting, should carry out recording storage in the logout module with event mode, record format and requirement are carried out by industry standard.
The event recording function of the logout module of described intelligent electric energy meter comprises:
(1) can write down the programming total degree, the Data Identification of the moment of nearest 10 programmings, operator's code, programming item.
(2) can write down the total degree of requirement zero clearing, the moment of nearest 10 requirement zero clearings, operator's code.
The moment, operator's code when total degree in the time of (3) writing down school when school (do not comprise broadcasting), nearest 10 schools.
(4) can write down the total degree of each phase decompression, nearest 10 decompressions take place constantly, the finish time and corresponding information such as electric energy data.
(5) can write down the total degree of each phase phase failure, nearest 10 phases failure take place constantly, the finish time and corresponding information such as electric energy data.
(6) can write down the total degree of each phase defluidization, nearest 10 defluidizations take place constantly, the finish time and corresponding information such as electric energy data.
(7) can write down the uneven generation of nearest 10 primary currents, the finish time and corresponding electric energy data.
(8) energy recording voltage (stream) negative phase sequence total degree, nearest 10 the generation moment, the finish time and corresponding energy value amount data thereof.
(9) can write down game clock lid total degree, generation, the finish time of nearest 10 game clock lid incident.
(10) can write down and open the end button cover total degree, nearest generation, the finish time of opening the end button cover incident 10 times.
(11) generation of permanent recording electric energy meter zero clearing incident constantly and the electric energy data during zero clearing.
(12) can write down each phase overload total degree, T.T., nearest 10 overladen duration.
(13) can write down the total degree of power down, the moment that nearest 10 power down take place and finish.
(14) can write down the total degree of full decompression, moment, the finish time, and the current value of correspondence take place in nearest 10 full decompressions.
(15) but the total frequency of every kind of logout of copy reading and (or) total cumulative time.
(16) can write down nearest 10 Long-distance Control and operate a switch and nearest 10 Long-distance Control combined floodgate incidents, record draws, data such as the moment and electric flux take place the combined floodgate incident.
The electric weight freezing function of described intelligent electric energy meter is divided into:
(1) regularly freeze: the moment, the time interval according to appointment are freezed electric energy data, and each amount of freezing is preserved 12 times at least.
(2) instantaneous freezing: under improper situation, freeze current all electric quantity datas, calendar and time and important measurement data; The instantaneous amount of freezing is preserved last 3 secondary data.
(3) agreement is freezed: think in the conversion of two kinds of rates of the old and new/period, the conversion of ladder electricity price or Utilities Electric Co. and freeze to arrange electric weight and other significant datas constantly when specific (special) requirements is arranged.
(4) day freezes: store the electric flux at zero point every day, can store 2 months data volume.
Freeze content and identifier and should meet country and industry standard requirement.
The load record function of described intelligent electric energy meter comprises:
(1) the load record content can be from " voltage, electric current, the frequency " of DL/T 645-2007 definition, " have, reactive power ", " power factor ", " have, idle total electric energy ", " four-quadrant is idle total electric energy ", " current requirement " six class data item combination in any.
(2) load record can be provided with in 1~60min scope interval time, and the time interval of every type load record can be identical, also can be different.
(3) the load record storage space should guarantee at record forward and reverse meritorious total electric energy, idle total electric energy, four-quadrant is idle total electric energy, and the time interval is can write down under the situation of 1min to be no less than 40 days data capacity.
The power failure meter-reading function of described intelligent electric energy meter comprises:
(1) under power down mode, can wake electric energy meter up by button or noncontact mode, data such as copy reading electric flux.
The data storage function of described intelligent electric energy meter comprises:
(1) can store the two-way total electric flux of last 12 name days and the electric energy data of each rate, the data conversion storage boundary constantly is the 24 o'clock the end of month (beginning of the month is when zero) or the moment of the integral point in 1 to 28 day every month.
(2) can store the date and time data of two-way maximum demand, each rate maximum demand and the appearance thereof of last 12 name days, the data conversion storage boundary constantly be the 24 o'clock the end of month (beginning of the month zero time) or the moment of the integral point in 1 to 28 day every month.In the time of the end of month unloading, of that month maximum demand value return-to-zero automatically, other moment not unloadings of maximum demand value, also not return-to-zero of maximum demand.
(3) after the electric energy meter electric source dead electricity, all data holding times relevant with clearing should be no less than 10 years, and other data hold time should be no less than 3 years.
The clear operation of the dump block of described intelligent electric energy meter is as the incident permanent recording; All clear commands all have the safety practice that prevents unauthorized people operation, as data etc. before hardware programming switch, operator password or seal management being set and keeping zero clearing.
The communication module of described intelligent electric energy meter comprises:
Electric energy meter has 1 infrared communication module, a carrier communication module and 1 RS485 communication module.The Physical layer of the interface of carrier wave, infrared and RS485 communication module is separate, and the damage of an interface does not influence other interface operate as normal.In addition, communication interface and electric energy meter internal circuit are carried out electrical isolation, and fail-safe circuit is arranged.
RS485 interface communication baud rate can be provided with flexibly, and standard speed is 1200bps, 2400bps, 4800bps, 9600bps, defaults to 2400bps.
Described electric energy meter also is provided with pulse output module, and electric energy meter possesses LED pulse and the electric pulse output function that is directly proportional with the electric energy that is measured.
Described electric energy meter also comprises decompression, phase failure reminding module, is used for when any phase decompression, the phase failure take place, and electric energy meter all writes down and send correct information.
For guaranteeing the security of electric energy meter, described electric energy meter also comprises a security authentication module, described security authentication module in the external world by solid state medium to electric energy meter carry out the parameter setting, when the electricity charge that prestore, information are returned and are write and issue the remote control command operation, need by strict password authentification or ESAM (EmbeddedSecure Access Module, the embedded-type security control module) etc. safety certification is reliable to guarantee data transmission security.The cryptographic algorithm of described ESAM module should meet the relevant policies of national Password Management, recommends to use the SM1 algorithm.
Should be understood that; application of the present utility model is not limited to above-mentioned giving an example; for those of ordinary skills, can be improved according to the above description or conversion, all these improvement and conversion all should belong to the protection domain of the utility model claims.

Claims (8)

1. long-range control intelligent electric energy meter that takes of state's net three-phase, comprise voltage sample module, current sample module, electric energy computation chip, digital signal processing chip, display module, it is characterized in that, also comprise a record and permanent logout module of preserving all status informations of electric energy meter; Described voltage sample module is connected electric energy computation chip respectively with the current sample module, and described electric energy computation chip connects digital signal processing chip, described digital signal processing chip connection event logging modle and display module.
2. the long-range control intelligent electric energy meter that takes of state according to claim 1 net three-phase is characterized in that described electric energy meter also comprises infrared interface, and described infrared interface connects described digital signal processing chip.
3. the long-range control intelligent electric energy meter that takes of state according to claim 1 net three-phase is characterized in that described electric energy meter also comprises a serial communication interface, and described serial communication interface connects described digital signal processing chip.
4. the long-range control intelligent electric energy meter that takes of state according to claim 1 net three-phase is characterized in that described electric energy meter also comprises the carrier communication interface, and described carrier communication interface connects described digital signal processing chip.
5. the long-range control intelligent electric energy meter that takes of state according to claim 1 net three-phase is characterized in that described electric energy meter also comprises key-press module, and described key-press module connects described digital signal processing chip, the demonstration that is used to control described electric energy meter with communicate by letter.
6. the long-range control intelligent electric energy meter that takes of state according to claim 2 net three-phase is characterized in that described electric energy meter also comprises an Infrared remote controller, and described Infrared remote controller communicates and control described electric energy meter by infrared interface and electric energy meter.
7. the long-range control intelligent electric energy meter that takes of state according to claim 1 net three-phase is characterized in that described electric energy meter also comprises the storer of storage of electrical energy table electric energy data, and described storer connects described digital signal processing chip.
8. the long-range control intelligent electric energy meter that takes of state according to claim 1 net three-phase, it is characterized in that, described electric energy meter also comprises the embedded-type security authentication module of the transmission data of guaranteeing that electric energy meter is safe and reliable, and described peace authentication module connects described digital signal processing chip.
CN2010205257067U 2010-09-09 2010-09-09 State grid three-phase remote bill control intelligent electric energy meter Expired - Fee Related CN201796087U (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103176039A (en) * 2011-12-20 2013-06-26 杨东明 Embedded intelligent electric energy meter
CN103901267A (en) * 2012-12-26 2014-07-02 苏州工业园区新宏博通讯科技有限公司 Current signal wireless receiving type electric energy meter
CN103945615A (en) * 2014-04-30 2014-07-23 长兴泛亚照明电器有限公司 Node controller of illumination system of parking lot
CN105092912A (en) * 2015-08-28 2015-11-25 溧阳市华鹏电力仪表有限公司 Cost control intelligent ammeter convenient to be mounted and dismounted
CN111124452A (en) * 2019-12-24 2020-05-08 宁波三星医疗电气股份有限公司 Software upgrading method and device for instrument, instrument and storage medium
CN111722009A (en) * 2020-05-29 2020-09-29 宁波三星医疗电气股份有限公司 Modular electric energy meter and data interchange method thereof
CN112147406A (en) * 2020-09-28 2020-12-29 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 Online monitoring system for transformer area line loss
CN112229469A (en) * 2020-10-20 2021-01-15 苏州工业园区清源华衍水务有限公司 Remote-transmission valve-controlled water meter
CN113009407A (en) * 2021-03-02 2021-06-22 深圳供电局有限公司 Voltage event recording method and device of double-core intelligent electric meter and double-core intelligent electric meter

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103176039A (en) * 2011-12-20 2013-06-26 杨东明 Embedded intelligent electric energy meter
CN103901267A (en) * 2012-12-26 2014-07-02 苏州工业园区新宏博通讯科技有限公司 Current signal wireless receiving type electric energy meter
CN103945615A (en) * 2014-04-30 2014-07-23 长兴泛亚照明电器有限公司 Node controller of illumination system of parking lot
CN105092912A (en) * 2015-08-28 2015-11-25 溧阳市华鹏电力仪表有限公司 Cost control intelligent ammeter convenient to be mounted and dismounted
CN111124452A (en) * 2019-12-24 2020-05-08 宁波三星医疗电气股份有限公司 Software upgrading method and device for instrument, instrument and storage medium
CN111722009A (en) * 2020-05-29 2020-09-29 宁波三星医疗电气股份有限公司 Modular electric energy meter and data interchange method thereof
CN111722009B (en) * 2020-05-29 2022-06-03 宁波三星医疗电气股份有限公司 Modular electric energy meter and data interchange method thereof
CN112147406A (en) * 2020-09-28 2020-12-29 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 Online monitoring system for transformer area line loss
CN112229469A (en) * 2020-10-20 2021-01-15 苏州工业园区清源华衍水务有限公司 Remote-transmission valve-controlled water meter
CN113009407A (en) * 2021-03-02 2021-06-22 深圳供电局有限公司 Voltage event recording method and device of double-core intelligent electric meter and double-core intelligent electric meter

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