CN101398954A - Three phase pre-payment electric energy metered system and electric energy control device - Google Patents
Three phase pre-payment electric energy metered system and electric energy control device Download PDFInfo
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- CN101398954A CN101398954A CNA2008102169964A CN200810216996A CN101398954A CN 101398954 A CN101398954 A CN 101398954A CN A2008102169964 A CNA2008102169964 A CN A2008102169964A CN 200810216996 A CN200810216996 A CN 200810216996A CN 101398954 A CN101398954 A CN 101398954A
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Abstract
The invention is applicable to the field of electric energy metrology, and provides a prepaid three-phase electric energy metering system and an electric energy control device. The metering system comprises an electric energy meter for settlement electricity consumption which is used for calculating the actual settlement electricity consumption of a user; and the electric energy control device, which is used for calculating the reference electricity consumption of the actual electricity consumption of the user, monitors the error of the electric energy meter for the settlement electricity consumption based on the reference electricity consumption in a real-time manner, and reports the out-of-tolerance alarm information to a control center when the error of the electric energy meter for the settlement electricity consumption exceeds a set value. The prepaid three-phase electric energy metering system adopts the electric energy control device with the function of calculating the reference electricity consumption to monitor the error of the electric energy meter for the settlement electricity consumption in a real- time manner, and reports the out-of-tolerance alarm information to the control center when the error exceeds the set value, which avoid a dispute about electric power charge caused by the out-of-tolerance error of the electric energy meter.
Description
Technical field
The invention belongs to the electric energy metrical field, relate in particular to a kind of three phase pre-payment electric energy metered system and electric energy control device.
Background technology
Pre-payment electric energy measuring apparatus of the prior art mainly comprises two kinds, a kind of pre-payment electric energy measuring apparatus of forming by the electric energy meter of IC-card pre-payment controller and clearing electric weight, its shortcoming is: the use of this electric power meter and some clause in the electric power law are inconsistent; Can only report to the police before operating a switch, can not send to the user to the information of operating a switch in advance; And can not initiatively report the information (as: unpacking overproof information etc.) of this device itself to give control center, when electricity price changes, can't in time adjust electric weight.
Another kind is the long-range pre-payment electric energy measuring apparatus of GPRS, this device energy Long-distance Control folding lock; The self-information of reporting device (as: unpacking overproof information etc.) initiatively, can be initiatively to the user pass on warning, the information of operating a switch, and meet the regulation of electric power law; Yet the control module of this device does not have reference electric quantity measuring and calculating function, does not have the IC-card interface circuit yet, and when the electric energy meter of clearing electric weight when overproof, it is very difficult that electricity charge meeting is demanded by Utilities Electric Co.; Simultaneously, when the communication blind spot occurring as if the user region of using this device, control center will lose the control ability to device.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of three phase pre-payment electric energy metered system, is intended to solve electric power meter of the prior art and can not monitors the overproof information of clearing with electric energy meter in real time.
The embodiment of the invention is achieved in that a kind of three phase pre-payment electric energy metered system, comprising:
Clearing electric weight electric energy meter is used to calculate the clearing electric weight of the actual electricity consumption of user;
Electric energy control device, be used to calculate the reference electric quantity of the actual electricity consumption of user, according to described reference electric quantity the error of described clearing electric weight electric energy meter is monitored in real time, when the error of described clearing electric weight electric energy meter surpasses setting value, overproof warning message is reported control center.
The purpose of the embodiment of the invention also is a kind of electric energy control device is provided, and comprising:
Reference electric quantity measuring and calculating module is used to calculate the reference electric quantity of the actual electricity consumption of user;
Microcontroller will be settled accounts electric weight and described reference electric quantity is carried out overproof judgement;
Radio communication unit reports control center with the judged result of described microcontroller;
The pre-payment interface circuit is used to realize the physical connection of prepaid card and described microcontroller, and when user power utilization, described microcontroller is reduced the remaining electricity charge in the described prepaid card in real time; And
Power supply is used for providing operating voltage to described microcontroller and described reference electric quantity measuring and calculating module.
The three phase pre-payment electric energy metered system that the embodiment of the invention provides adopts the electric energy control device with reference electric quantity measuring and calculating function that the error of clearing electric weight electric energy meter is monitored in real time, when error surpasses setting value, overproof warning message is reported control center handle accordingly, avoided the electricity charge dispute that causes because of electric energy meter is overproof.
Description of drawings
Fig. 1 is the modular structure figure of the three phase pre-payment electric energy metered system that provides of the embodiment of the invention;
Fig. 2 is the structural drawing of the electric energy control device that provides of the embodiment of the invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The three phase pre-payment electric energy metered system that the embodiment of the invention provides adopts the electric energy control device with reference electric quantity measuring and calculating function that the error of clearing electric weight electric energy meter is monitored in real time, when error surpasses setting value, overproof warning message is reported control center, avoided the electricity charge dispute that causes because of overproof.
The three phase pre-payment electric energy metered system that the embodiment of the invention provides can be applied to data acquisition of the paying the fees of electricity consumption, remote monitoring, load control, distribution monitor, stealing monitoring, electric energy meter etc.; Its modular structure for convenience of explanation, only shows the part relevant with the embodiment of the invention as shown in Figure 1, and details are as follows.
Three phase pre-payment electric energy metered system comprises: clearing electric weight electric energy meter 1 and electric energy control device 2, clearing electric weight electric energy meter 1 is used to calculate the clearing electric weight of the actual electricity consumption of user, electric energy control device 2 is used to calculate the reference electric quantity of the actual electricity consumption of user, according to reference electric quantity the error of clearing electric weight electric energy meter 1 is monitored in real time, when the error of clearing electric weight electric energy meter 1 surpasses setting value, overproof warning message is reported control center, Utilities Electric Co. just can grasp the user power utilization situation in real time like this, electricity charge dispute has been avoided in the recovery electricity charge in time.
As one embodiment of the present of invention, three phase pre-payment electric energy metered system also comprises motor operated switch 3, is connected with electric energy control device 2, utilizes electric motor operation switch to realize the control of drawing lock under the driving of electric energy control device 2, has improved the security of using.Simultaneously, electric power meter also comprises terminal block district 4, is made of the connection terminal of four reservations, and the user can own as required wiring, does not need professional's participation.
Wherein, clearing electric weight electric energy meter 1 is the electric energy meter with electric energy metrical function, can freely dispose by the client, can dispose three-phase multifunctional table, three-phase idle electronic watch, 1 meritorious table of three-phase machinery and 1 idle table of three-phase machinery are arranged, also can be the electric energy meter of any company, any model, be mainly used in and calculate the actual power consumption of using of user.
The modular structure of electric energy control device 2 for convenience of explanation, only shows the relevant part of the embodiment of the invention as shown in Figure 2, and details are as follows.
Electric energy control device 2 mainly comprises: microcontroller 20, reference electric quantity measuring and calculating module 21, radio communication unit 22, pre-payment interface circuit 23 and power supply 24; Reference electric quantity measuring and calculating module 21 is the same with clearing electric weight electric energy meter 1, all has the electric energy metrical function, is used to calculate the actual power consumption of using of user; Microcontroller 20 will be settled accounts the clearing electric weight of electric weight electric energy meter 1 calculating and the reference electric quantity of reference electric quantity measuring and calculating module 21 calculating is carried out overproof judgement; Radio communication unit 22 reports control center with the judged result of microcontroller 20; Pre-payment interface circuit 23 is used to realize the physical connection of prepaid card and microcontroller 20, and when user power utilization, microcontroller 20 is reduced the residue electricity charge in real time; Power supply 24 provides operating voltage for microcontroller 20 and reference electric quantity measuring and calculating module 21.
In embodiments of the present invention, clearing electric weight electric energy meter 1 all has real-time clock with reference electric quantity measuring and calculating module 21, can freeze electric weight, in duration of freezing, microcontroller 20 carries out error judgment according to freezing electric weight, concrete deterministic process is as follows, for convenience of explanation, electric weight electric energy meter 1 is settled accounts in order in duration of freezing the electric weight that freezes is a (being the clearing electric weight), the electric weight that freezes of reference electric quantity measuring and calculating module 21 is b (being reference electric quantity), the electric weight error of clearing electric weight electric energy meter 1 is Xa, and the electric weight error of reference electric quantity measuring and calculating module 21 is Xb; Then calculate Xa=(a-b) * 100/a earlier; Xb=(a-b) * 100/b; Judge then whether Xa, Xb surpass 150% of electrical energy meter accuracy, and concrete judged result is divided three kinds of situations:
(1) when Xa surpass clearing electric weight electric energy meter 1 precision 150%, Xb is no more than 150% o'clock of precision of reference electric quantity measuring and calculating module 21, it is overproof then to settle accounts electric weight electric energy meter 1, and reference electric quantity measuring and calculating module 21 is not overproof, and then the electric weight b that freezes with reference electric quantity measuring and calculating module 21 is the clearing foundations;
(2) when Xa be no more than clearing electric weight electric energy meter 1 precision 150%, when Xb surpasses the precision 150% of reference electric quantity measuring and calculating module 21, it is not overproof then to settle accounts electric weight electric energy meter 1, and reference electric quantity measuring and calculating module 21 is overproof, and then the electric weight a that freezes with clearing electric weight electric energy meter 1 is the clearing foundations;
(3) when Xa surpass clearing electric weight electric energy meter 1 precision 150%, Xb surpasses 150% o'clock of precision of reference electric quantity measuring and calculating module 21, then clearing electric weight electric energy meter 1 is examined and determine again, and is moved back the benefit electric weight according to gauging error.
In embodiments of the present invention, reference electric quantity measuring and calculating module 21 further comprises: sample circuit 211, analog to digital conversion circuit 212 and data processing circuit 213,211 pairs of user's three-phase voltages of sample circuit electric current is sampled output voltage sampled signal and current sampling signal; Analog to digital conversion circuit 212 is converted to pulse signal with voltage sampling signal and described current sampling signal; Data processing circuit 213 detects the pulse signal of analog-digital conversion circuit as described 212 outputs, by the reference electric quantity of the actual electricity consumption of predefined pulse constant calculations user.As one embodiment of the present of invention, sample circuit 211 further comprises: miniature voltage transformer (VT) and micro-transformer of current are respectively applied for the sampling of voltage signal and the sampling of current signal.
As one embodiment of the present of invention, radio communication unit 22 can be the GPRS communication module, also can be CDMA communication module or GSM communication module.When the electric power policy changed, the program in the microcontroller 20 can be passed through radio communication unit 22 remote upgrades, guaranteed power supply, electricity consumption both sides' interests; Simultaneously, give control center,, can also early warning, the information of operating a switch initiatively be delivered to the user by control center so that Utilities Electric Co. grasps user's electricity consumption situation at any time by the power information that radio communication unit 22 can the real-time report user.
In embodiments of the present invention, pre-payment interface circuit 23 is the IC-card interface, is used to realize the physical connection of prepaid card and microcontroller 20, and when the user bought electricity, the electricity charge existed on the IC-card, and when user power utilization, microcontroller 20 is reduced the residue electricity charge in real time.As one embodiment of the present of invention, IC-card comprises: IC storage card, IC smart card and IC radio-frequency card.
In embodiments of the present invention, electric energy control device 2 also comprises: the display module 25 that is connected with microcontroller 20, clock circuit 26 and memory circuit 27 respectively; Wherein, display module 25 is used to show relevant information and indication correlation behavior, shows the accumulative total power consumption, shows relevant ammeter and parameter information, shows phase failure indication, current period rate indication, pulse indication, power alarm indication and communication indication; Clock circuit 26 be used for real-time clock setting, read and calibrate, provide time reference to total system; Memory circuit 27 is used to store the user power utilization electric weight and the electricity charge etc.
The three phase pre-payment electric energy metered system that adopts the embodiment of the invention the to provide electricity charge that prestore have dual mode, and first kind is that the electricity charge with advance payment exist on the IC-card, and IC-card is connected with microcontroller 20 by pre-payment interface circuit 23, and electricity charge unloading is in memory circuit 27; The second way is that the electricity charge that the user prestores are stored in the memory circuit 27 by radio communication unit 22; When user power utilization, microcontroller 20 is reduced dump energy in real time, calculates the electricity charge; When dump energy arrived the early warning electric weight, display module 25 can be reported to the police by the sounding light, simultaneously, by radio communication unit 22 alerting signal was uploaded to control center.Control center in time buys electric weight by the short message prompt user.If the user does not in time buy electric weight, when dump energy arrival 0 is spent, can send the signal of operating a switch.Before operating a switch, control center can remind the user in time to buy electric weight once more.Simultaneously, do not have in time to buy for convenience the user of electric weight, control center can long-rangely be provided with the overdraw electric weight, even dump energy arrives 0 degree, still can not operate a switch.Equally, when the communication blind spot appears in the user region of using this device, can also be provided with and not operate a switch, enter and protect the electric work energy.
In embodiments of the present invention, electric energy control device 2 also comprises: serial communication circuit 28, and the one end is connected with microcontroller 20, and the other end is used to connect other electric energy meter, realize that the networking of a plurality of electric energy meters uses, be applicable to that transformer station's multilist shares long-distance radio communication unit 22; Infrared communication circuit 29, the one end is connected with microcontroller 20, the communication apparatus of other end connecting band infrared interface, by correlation parameter is set, reading of data and power failure are checked meter.As one embodiment of the present of invention, display module can show (dot matrix Chinese character liquid crystal display) for LCD, also can be voice suggestion, can also show for LED.
The three phase pre-payment electric energy metered system that the embodiment of the invention provides adopts the electric energy control device with reference electric quantity measuring and calculating function that the error of clearing electric weight electric energy meter is monitored in real time, when error surpasses setting value, overproof warning message is reported control center handle accordingly, avoided the electricity charge dispute that causes because of electric energy meter is overproof.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1, a kind of electric energy control device is characterized in that, described electric energy control device comprises:
Reference electric quantity measuring and calculating module is used to calculate the reference electric quantity of the actual electricity consumption of user;
Microcontroller carries out overproof judgement with the clearing electric weight and the described reference electric quantity of settling accounts the actual electricity consumption of user of electric weight electric energy meter calculating;
Radio communication unit reports control center with the judged result of described microcontroller;
The pre-payment interface circuit is used to realize the physical connection of prepaid card and described microcontroller, and when user power utilization, described microcontroller is reduced the remaining electricity charge in the described prepaid card in real time; And
Power supply is used for providing operating voltage to described microcontroller and described reference electric quantity measuring and calculating module.
2, electric energy control device as claimed in claim 1 is characterized in that, described electric energy control device also comprises:
Clock circuit, display module and the memory circuit that is connected with described microcontroller respectively.
3, electric energy control device as claimed in claim 2 is characterized in that, described electric energy control device also comprises:
Serial communication circuit that is connected with described microcontroller and infrared communication circuit respectively.
4, a kind of three phase pre-payment electric energy metered system is characterized in that, described three phase pre-payment electric energy metered system comprises:
Clearing electric weight electric energy meter is used to calculate the clearing electric weight of the actual electricity consumption of user;
Electric energy control device, be used to calculate the reference electric quantity of the actual electricity consumption of user, according to described reference electric quantity the error of described clearing electric weight electric energy meter is monitored in real time, when the error of described clearing electric weight electric energy meter surpasses setting value, overproof warning message is reported control center.
5, three phase pre-payment electric energy metered system as claimed in claim 4 is characterized in that, described electric energy control device comprises:
Reference electric quantity measuring and calculating module is used to calculate the reference electric quantity of the actual electricity consumption of user;
Microcontroller carries out overproof judgement with clearing electric weight and described reference electric quantity that described clearing electric weight electric energy meter calculates;
Radio communication unit reports control center with the judged result of described microcontroller;
The pre-payment interface circuit is used to realize the physical connection of prepaid card and described microcontroller, and when user power utilization, described microcontroller is reduced the remaining electricity charge in the described prepaid card in real time; And
Power supply is used for providing operating voltage to described microcontroller and described reference electric quantity measuring and calculating module.
6, three phase pre-payment electric energy metered system as claimed in claim 5 is characterized in that, described electric energy control device also comprises:
Clock circuit, display module and the memory circuit that is connected with described microcontroller respectively.
7, three phase pre-payment electric energy metered system as claimed in claim 6 is characterized in that, described electric energy control device also comprises:
Serial communication circuit that is connected with described microcontroller and infrared communication circuit respectively.
8, three phase pre-payment electric energy metered system as claimed in claim 5 is characterized in that, described reference electric quantity measuring and calculating module further comprises:
Sample circuit is sampled output voltage sampled signal and current sampling signal to user's three-phase voltage electric current;
Analog to digital conversion circuit is converted to pulse signal with described voltage sampling signal and described current sampling signal;
Data processing circuit detects the pulse signal that analog-digital conversion circuit as described is exported, by the reference electric quantity of the actual electricity consumption of predefined pulse constant calculations user.
9, three phase pre-payment electric energy metered system as claimed in claim 5 is characterized in that, described radio communication unit is the GPRS module.
10, three phase pre-payment electric energy metered system as claimed in claim 4 is characterized in that, described three phase pre-payment electric energy metered system also comprises:
Motor operated switch is connected with described electric energy control device, utilizes electric motor operation switch to realize the control of drawing lock under the driving of described electric energy control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2008102169964A CN101398954B (en) | 2008-10-29 | 2008-10-29 | Three phase pre-payment electric energy metered system and electric energy control device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008102169964A CN101398954B (en) | 2008-10-29 | 2008-10-29 | Three phase pre-payment electric energy metered system and electric energy control device |
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| CN101398954A true CN101398954A (en) | 2009-04-01 |
| CN101398954B CN101398954B (en) | 2011-05-25 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102394487A (en) * | 2011-09-30 | 2012-03-28 | 张敬敏 | Protection unit of prepayment device |
| CN103366458A (en) * | 2013-06-28 | 2013-10-23 | 安徽明都电气有限公司 | Prepayment metering control device with automatic short message warning function |
| CN103559760A (en) * | 2013-11-11 | 2014-02-05 | 潘之凯 | Electricity-consumption managing system device and method |
| CN107533780A (en) * | 2015-07-17 | 2018-01-02 | 广东浩迪创新科技有限公司 | A kind of fee management system and method based on intelligent electric meter |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI489726B (en) * | 2013-11-25 | 2015-06-21 | Inst Information Industry | Power consumption measurement and control apparatus, method, and computer program product thereof |
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2008
- 2008-10-29 CN CN2008102169964A patent/CN101398954B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102394487A (en) * | 2011-09-30 | 2012-03-28 | 张敬敏 | Protection unit of prepayment device |
| CN103366458A (en) * | 2013-06-28 | 2013-10-23 | 安徽明都电气有限公司 | Prepayment metering control device with automatic short message warning function |
| CN103559760A (en) * | 2013-11-11 | 2014-02-05 | 潘之凯 | Electricity-consumption managing system device and method |
| CN103559760B (en) * | 2013-11-11 | 2017-01-18 | 北京纳衡仪器仪表有限公司 | Electricity-consumption managing system device |
| CN107533780A (en) * | 2015-07-17 | 2018-01-02 | 广东浩迪创新科技有限公司 | A kind of fee management system and method based on intelligent electric meter |
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| CN101398954B (en) | 2011-05-25 |
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