CN103513077B - Electric meter capable of avoiding fraudulent use of electricity - Google Patents
Electric meter capable of avoiding fraudulent use of electricity Download PDFInfo
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- CN103513077B CN103513077B CN201310470576.XA CN201310470576A CN103513077B CN 103513077 B CN103513077 B CN 103513077B CN 201310470576 A CN201310470576 A CN 201310470576A CN 103513077 B CN103513077 B CN 103513077B
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- HPDFFVBPXCTEDN-UHFFFAOYSA-N copper manganese Chemical compound [Mn].[Cu] HPDFFVBPXCTEDN-UHFFFAOYSA-N 0.000 claims description 12
- 230000000087 stabilizing effect Effects 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 230000002265 prevention Effects 0.000 abstract description 2
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- 229910000896 Manganin Inorganic materials 0.000 description 9
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- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
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Abstract
The present invention relates to a kind of electric meter capable of avoiding fraudulent use of electricity, it is arranged between mains supply line and power grid user load, it comprises watchcase and near infrared reading device with matching, wherein in described watchcase, be provided with terminals, processor and infrared communication portion, described infrared communication portion is electrically connected to processor, L line and the N line of mains supply line access described ammeter by described terminals, and comprise decompression portion further, analog input portion, power detecting portion and strong magnetic detector, described terminals are tapped into analog input portion and decompression portion, described analog input portion is electrically connected to processor, described decompression portion is electrically connected to processor respectively by power detecting portion and strong magnetic detector, wherein said infrared communication portion cooperatively interacts with near infrared reading device and is connected, by the in addition mutually communication coupling of infrared communication mode.The present invention can effectively electricity theft prevention accident occur.
Description
Technical field
The present invention relates to electrical network electric power measurement technology, in more specific words it, the present invention relates to a kind of single-phase single line list table with near infrared communication.This ammeter adopts one wire design, and can effectively electricity theft prevention accident occur.First preferred embodiment of the invention still can realize the Intelligent electronic-type ammeter measuring communication under being specifically related to a kind of stealing situation lacking zero line.Second preferred embodiment of the invention is specifically related to a kind of anti-electricity-theft electronic electricity meter adopting novel terminals.
Background technology
Technical scheme of the present invention meets stipulations:
IEC62052-11, IEC62053-21, and IEC62056-61
Ammeter is a kind of electrical measurement that can measure the power consumption of power system customer and transmit, it is mainly by carrying out analog quantity sampling to the electric current of electric system line of electric force and voltage, obtain electric current and voltage analog signal, then process is carried out to these analog signalses draw data message.The Continual Improvement of the equipment such as distribution and the condition of transmitting electricity along with electric system, continuous improvement has also been carried out to the electrical measuring device of power system customer, and progressively there is the Intelligent electric such as intelligent electric meter and time-sharing electricity meter measuring equipment, to meet the multiple demand of electric system.Current, for single-phase electric meter, the performance of equipment constantly improved and has optimized, but having created problem thereupon, the cost of such as ammeter own constantly increases, and design is comparatively complicated loaded down with trivial details, some function is not used by effective, and meanwhile, most ammeter does not possess anti-stealing electricity function, avoid stealing to occur by means of only carrying out the structure change such as reinforcing in electric meter box, but this method is ineffective.Ye You manufacturer develops electric meter capable of avoiding fraudulent use of electricity, but be only by table meter Lead seal for a housing realize anti-electricity-theft, therefore effect and not obvious.CN202159083U discloses a kind of electric meter capable of avoiding fraudulent use of electricity, and discloses this technical characteristic of battery feed circuit, and it is connected with computation chip with single-chip microcomputer.Whether this technical scheme only embodies it has electric current to measure whether power-off occurs by detecting live wire, but really cannot solve the problem of power-off reason and normal metering.Meanwhile, its know-why exists a kind of uncertain, and namely do not consider the different situations of stealing completely, namely stealing not only destroys zero line, and such as, when there is the situation such as reversal connection or short circuit, this circuit will lose the effect described by it.
In addition, in the prior art, the data programing of ammeter is realized by near infrared reading device, usually be fixed on inside electricity meter shell or the top of the near-infrared luminous pipe in outside with the infrared sucker that ferrous material makes, near infrared reading device is equipped with magnet ring, when needs read data, the magnet ring of reading device is adsorbed on the infrared sucker of electric energy meter case.Its defect is that cost is high, and the infrared sucker on watchcase and the magnet ring in reading device all can increase the cost of product; Reading device volume is large, and heavy, magnet ring need have stronger magnetic, adds weight and the volume of reading device.
Summary of the invention
The present invention is intended to overcome above-mentioned technological deficiency, proposes a kind of single-phase single line electric meter capable of avoiding fraudulent use of electricity.
Technical scheme of the present invention is: electric meter capable of avoiding fraudulent use of electricity, it is arranged between mains supply line and power grid user load, its Curve guide impeller is: comprise watchcase and near infrared reading device with matching, wherein in described watchcase, be provided with terminals, processor and infrared communication portion, described infrared communication portion is electrically connected to processor, L line and the N line of mains supply line access described ammeter by described terminals, and comprise resistance-capacitance depressurization portion further, analog input portion, power detecting portion and strong magnetic detector, described terminals are tapped into analog input portion and decompression portion, described analog input portion is electrically connected to processor, described decompression portion is electrically connected to processor respectively by power detecting portion and strong magnetic detector, wherein said infrared communication portion cooperatively interacts with near infrared reading device and is connected, by the in addition mutually communication coupling of infrared communication mode.
In one embodiment, described watchcase internal fixtion has iron prop, and described near infrared reading device internal fixtion has magnetic post, and described iron prop is corresponding with the position of described magnetic post and can be adsorbed on together.
In one embodiment, described terminals comprise L end of incoming cables, N end of incoming cables, L leading-out terminal and N leading-out terminal, wherein said L end of incoming cables and N inlet wire termination establish mains supply line, described L leading-out terminal and N outlet termination establish power grid user load, described L end of incoming cables is tapped into N end of incoming cables, L leading-out terminal, and is connected to N leading-out terminal further; Or described terminals comprise L end of incoming cables, N end of incoming cables, L leading-out terminal and N leading-out terminal, and comprise an earth terminal further, wherein said L end of incoming cables and N inlet wire termination establish mains supply line, described L leading-out terminal and N outlet termination establish power grid user load, described L end of incoming cables is tapped into N end of incoming cables, L leading-out terminal, and being connected to N leading-out terminal further, described earth terminal is connected to N end of incoming cables.
In one embodiment, described analog input portion comprises L line copper-manganese current sample portion, N line CT current sample portion and voltage sample portion, the input end in described L line copper-manganese current sample portion is arranged between L end of incoming cables and N leading-out terminal, the input end in described N line CT current sample portion and voltage sample portion is arranged between L end of incoming cables and N end of incoming cables, and the output terminal in described L line copper-manganese current sample portion, N line CT current sample portion and voltage sample portion is connected to processor respectively.
In another embodiment, described analog input portion comprises L line copper-manganese current sample portion, N line CT current sample portion and voltage sample portion, the input end in described L line copper-manganese current sample portion is arranged between L end of incoming cables and N leading-out terminal, the input end in described N line CT current sample portion and voltage sample portion is arranged between L end of incoming cables and N end of incoming cables, and the output terminal in described L line copper-manganese current sample portion, N line CT current sample portion and voltage sample portion is connected to processor respectively.
In one embodiment, described decompression portion comprises resistance-capacitance depressurization portion, power taking CT portion and voltage stabilizing portion, the input end in described resistance-capacitance depressurization portion is connected to L end of incoming cables, and described voltage stabilizing portion input end is electrically connected on resistance-capacitance depressurization portion and power taking CT portion respectively, and described voltage stabilizing portion output terminal is electrically connected on power detecting portion.
In another embodiment, described decompression portion comprises resistance-capacitance depressurization portion and voltage stabilizing portion, the input end in described resistance-capacitance depressurization portion is connected to L end of incoming cables, and described voltage stabilizing portion input end is electrically connected on resistance-capacitance depressurization portion respectively, and described voltage stabilizing portion output terminal is electrically connected on power detecting portion.
In another embodiment, in described single-phase single line electric meter capable of avoiding fraudulent use of electricity, described decompression portion comprises capacitance-resistance voltage reduction circuit, power taking CT circuit and mu balanced circuit, the input end of described capacitance-resistance voltage reduction circuit is connected to L end of incoming cables, described mu balanced circuit input end is electrically connected on capacitance-resistance voltage reduction circuit and power taking CT circuit respectively, and described circuit output end of pressure-stabilizing is electrically connected on power sense circuit.
In described single-phase single line electric meter capable of avoiding fraudulent use of electricity, described terminals comprise L end of incoming cables, N end of incoming cables, L leading-out terminal and N leading-out terminal, and comprise an earth terminal further, wherein said L end of incoming cables and N inlet wire termination establish mains supply line, described L leading-out terminal and N outlet termination establish power grid user load, described L end of incoming cables is tapped into N end of incoming cables, L leading-out terminal, and is connected to N leading-out terminal further.
In described single-phase single line electric meter capable of avoiding fraudulent use of electricity, described analog input circuit comprises L line manganin current sampling circuit, N line CT current sampling circuit and voltage sampling circuit, the input end of described L line manganin current sampling circuit is arranged between L end of incoming cables and N leading-out terminal, the input end of described N line CT current sampling circuit and voltage sampling circuit is arranged between L end of incoming cables and N end of incoming cables, and the output terminal of described L line manganin current sampling circuit, N line CT current sampling circuit and voltage sampling circuit is connected to processor respectively.
In described single-phase single line electric meter capable of avoiding fraudulent use of electricity, described earth terminal is connected to N end of incoming cables.
In described single-phase single line electric meter capable of avoiding fraudulent use of electricity, described decompression portion comprises capacitance-resistance voltage reduction circuit and mu balanced circuit, the input end of described capacitance-resistance voltage reduction circuit is connected to L end of incoming cables, described mu balanced circuit input end is electrically connected on capacitance-resistance voltage reduction circuit respectively, and described circuit output end of pressure-stabilizing is electrically connected on power sense circuit.
In described single-phase single line electric meter capable of avoiding fraudulent use of electricity, described infrared communication circuit comprises an infrared communication port further, and it and an infrared reading interface in outside are interconnected.
In described single-phase single line electric meter capable of avoiding fraudulent use of electricity, be connected together between the infrared reading interface of described infrared communication port and outside, carry out data transmission by infrared communication mode.
In described single-phase single line electric meter capable of avoiding fraudulent use of electricity, described input circuit comprises display circuit and programmed circuit,
In described single-phase single line electric meter capable of avoiding fraudulent use of electricity, described display circuit is provided with display control key, and is electrically connected to single-chip microcomputer.
In described single-phase single line electric meter capable of avoiding fraudulent use of electricity, described programmed circuit is provided with programming control key, and is electrically connected to single-chip microcomputer.
Further, a kind of power detecting method of foregoing single-phase single line electric meter capable of avoiding fraudulent use of electricity, is characterized in that comprising the steps: that ammeter powers on; Single-chip microcomputer judges power mode, if be judged to be, electric network power line is powered, then carry out power-up initializing, if be judged to be, battery powers on, then carry out power failure initialization; After power-up initializing completes, carry out powering on major cycle; After power failure initialization completes, carry out power failure major cycle; After the major cycle that powers on completes, carry out lower electro-detection, still have electricity if detect, then re-start the major cycle that powers on, if detect lower electricity, then carry out power failure initialization; After the circulation that has a power failure, carry out upper electro-detection, still have a power failure if detect, then re-start power failure major cycle, power on if detect, then carry out powering on major cycle.
In the power detecting method of foregoing single-phase single line electric meter capable of avoiding fraudulent use of electricity, described in the major cycle that powers on be included in a preset time period and carry out successively: metering process; Graphics Processing; Event handling; Communication processing.
In the power detecting method of foregoing single-phase single line electric meter capable of avoiding fraudulent use of electricity, described power failure major cycle is included in a preset time period to be carried out successively: power failure check processing; Stealing event handling; Interrupt processing.
Specific embodiment will described in detail referring to accompanying drawing, and the same or similar element in accompanying drawing or functional unit are marked with similar or identical symbol.
Accompanying drawing explanation
Figure 1A is the structural representation that the present invention has the electric meter capable of avoiding fraudulent use of electricity embodiment of near infrared reading function;
Figure 1B is the inner structure schematic diagram of near infrared reading device in Figure 1A;
Fig. 2 is the theory structure schematic diagram of the single-phase single line electric meter capable of avoiding fraudulent use of electricity of the present invention;
Fig. 3 is the circuit theory diagrams of the processor part of the single-phase single line electric meter capable of avoiding fraudulent use of electricity of the present invention;
Fig. 4 is the wiring diagram of a kind of preferred embodiment of terminals of the present invention.
Embodiment
With reference to Figure 1A, Figure 1B and Fig. 2, the embodiment of electric meter capable of avoiding fraudulent use of electricity comprises watchcase 2 and near infrared reading device 4 with matching, wherein in described watchcase, be provided with terminals, processor and infrared communication portion, described infrared communication portion is electrically connected to processor, L line and the N line of mains supply line access described ammeter by described terminals, and comprise decompression portion further, analog input portion, power detecting portion and strong magnetic detector, described terminals are tapped into analog input portion and decompression portion, described analog input portion is electrically connected to processor, described decompression portion is electrically connected to processor respectively by power detecting portion and strong magnetic detector, wherein said infrared communication portion cooperatively interacts with near infrared reading device 4 and is connected, by the in addition mutually communication coupling of infrared communication mode.
In one embodiment, single-phase single line electric meter capable of avoiding fraudulent use of electricity is arranged between mains supply line and power grid user load, and comprises terminals 10, display 20, processor 30, storer 40, input circuit 50 and infrared communication circuit 60.Display 20, storer 40, input circuit 50 and infrared communication circuit 60 are electrically connected to processor 30 respectively, and the L line of mains supply line and N line access ammeter 1 by described terminals 10.The preferred embodiment of single-phase zone line electric meter capable of avoiding fraudulent use of electricity of the present invention comprises decompression portion 70, analog input circuit 80, power sense circuit 90 and strong magnetic sensor circuit 100 further.Terminals 10 are tapped into analog input circuit 80 and decompression portion 70, and analog input circuit 80 is electrically connected to processor 30, and described decompression portion 70 is electrically connected to processor 30 respectively by power sense circuit 90 and strong magnetic sensor circuit 100.
In one embodiment, with reference to Figure 1A and Figure 1B, described watchcase internal fixtion has iron prop 1, and described near infrared reading device 4 internal fixtion has magnetic post 3, and described iron prop 1 is corresponding with the position of described magnetic post 3 and can be adsorbed on together.The end of described near infrared reading device body 4 is provided with read head housing 6, is provided with reading module 7 in described read head housing 6, described reading module 7 connection data interface 5.
In the preferred embodiment of the single-phase single line electric meter capable of avoiding fraudulent use of electricity of the present invention, described processor 30 comprises single-chip microcomputer 31 and commutation circuit 32, and described commutation circuit 32 is electrically connected to single-chip microcomputer 31.
Each element above-mentioned set in the present invention's single-phase single line electric meter capable of avoiding fraudulent use of electricity is integrated in same PCB, usually select such as storer 40, display and display circuit 20 and processor 30 to be integrated on a circuit board compared to conventional ammeter manufacturing enterprise, all the other elements then layering are laid, which adds cost and the connective stability of manufacture, and advantage of the present invention is, solve such defect by the novel connection and installation between each circuit/element.
Single-chip microcomputer 31 is preferably 16 MCU of the MSP430F427 type that TI company produces, and preferably arranges a metering units (being preferably ESP430A1) and adc circuit.As shown in Figure 2, electrical network L and N line of electric force are by access decompression portion 70 and analog input circuit 80 after the terminals 10 of ammeter 1, subsequently circuit 70 and 80 by the analog signal transmission of electric current I and voltage U to single-chip microcomputer 31, signal is converted to digital signal and delivers to metering units by the adc circuit of single-chip microcomputer 31, described metering units has pair register, namely electric current register and voltage register are to carry out binary channels metering, and pass through formula:
P
TOU=∑U
TOU·I
TOU
Draw demand metering power P
tOU, requirement refers to that electric energy accumulative in the requirement cycle is divided by this requirement cycle.When after requirement end cycle, by it with passage meritorious/apparent maximum demand compared with, if this requirement is larger, new maximum demand and maximum demand time are updated to current requirement and time of origin, in a preferred embodiment of the invention, requirement mode adopts interval type to be calculated, and the content of demand metering comprises total maximum demand such as in 30min and time of origin, the time of current meritorious apparent requirement and generation.Meanwhile, metering units carries out forward and reverse bidirectional measuring, namely forward charge value be forward and reverse electricity absolute value and.
In the preferred embodiment of the single-phase single line electric meter capable of avoiding fraudulent use of electricity of the present invention, described storer 40, display 20 and infrared communication circuit 60 are electrically connected to single-chip microcomputer 31 respectively.With reference to Fig. 2, infrared communication circuit 60 can directly and single-chip microcomputer 31 be of coupled connections, be namely installed in processor 30.
In the preferred embodiment of the single-phase single line electric meter capable of avoiding fraudulent use of electricity of the present invention, described commutation circuit 32 comprises stops copying commutation circuit 33 and stops aobvious commutation circuit 34, described in stop copying commutation circuit 33 and stopping aobvious commutation circuit 34 to be connected to single-chip microcomputer 31.
As shown in Figure 3, in the preferred embodiment of the single-phase single line electric meter capable of avoiding fraudulent use of electricity of the present invention, described processor 30 comprises clock circuit 35, the biasing circuit 36 of the electrical connection that is coupled with it and end 37 of programming further.Clock circuit 35 preferably includes the crystal oscillating circuit that is set as 32.768K, makes global error be less than 1s in 1 year.Biasing circuit 36 is for regulating the voltage of processor 30 function end of ammeter 1, and end 37 of programming is preferably disposed on processor 30 inside and is coupled with single-chip microcomputer 31, this programming end 37 also can be arranged in infrared communication circuit 60, in a preferred embodiment of the invention, controlled by programming end 37 pairs of clock circuits 35, such as utilize an external communications equipment, after preferably an infrared reading device 62 carries out optical communication with it, the time and date that clock circuit calculates is calibrated, or when the data of copy reading ammeter 1, can by the electrical measurement data of single-chip microcomputer 31, timesharing is carried out according to the control of clock circuit, segmentation copy reading.
As shown in Figure 4, in the first preferred embodiment of the single-phase single line electric meter capable of avoiding fraudulent use of electricity of the present invention, terminals comprise S1, N end of incoming cables, L end of incoming cables S2, L leading-out terminal S3 and N leading-out terminal S4, wherein said L end of incoming cables S1 and N end of incoming cables S2 connects and establishes mains supply line SUPPLY, described L leading-out terminal S3 and N leading-out terminal S4 connects and establishes power grid user load LOAD, wherein said L end of incoming cables S1 is tapped into N end of incoming cables S2, L leading-out terminal S3, and is connected to N leading-out terminal S4 further.
In the first preferred embodiment of the single-phase single line electric meter capable of avoiding fraudulent use of electricity of the present invention, analog input circuit 80 comprises L line manganin current sampling circuit, N line CT current sampling circuit and voltage sampling circuit, the input end of described L line manganin current sampling circuit is arranged between L end of incoming cables S1 and N leading-out terminal S4, the input end of described N line CT current sampling circuit and voltage sampling circuit is arranged between L end of incoming cables S1 and N end of incoming cables S3, and the output terminal of L line manganin current sampling circuit, N line CT current sampling circuit and voltage sampling circuit is connected to processor 30 respectively.
In the first preferred embodiment of the single-phase single line electric meter capable of avoiding fraudulent use of electricity of the present invention, described decompression portion 70 comprises capacitance-resistance voltage reduction circuit, power taking CT circuit and mu balanced circuit, the input end of described capacitance-resistance voltage reduction circuit is connected to L end of incoming cables S1, described mu balanced circuit input end is electrically connected on capacitance-resistance voltage reduction circuit and power taking CT circuit respectively, and described circuit output end of pressure-stabilizing is electrically connected on power sense circuit 90.
In the second preferred embodiment of the single-phase single line electric meter capable of avoiding fraudulent use of electricity of the present invention, described terminals 10 comprise S1, N end of incoming cables, L end of incoming cables S2, L leading-out terminal S3 and N leading-out terminal S4, and comprise an earth terminal S5 further, wherein L end of incoming cables S1 and N end of incoming cables S2 connects and establishes mains supply line, L leading-out terminal S3 and N leading-out terminal S4 connects and establishes power grid user load, L end of incoming cables S1 is tapped into N end of incoming cables S2, L leading-out terminal S3, and is connected to N leading-out terminal S4 further.
In the second preferred embodiment of the single-phase single line electric meter capable of avoiding fraudulent use of electricity of the present invention, described analog input circuit 80 comprises L line manganin current sampling circuit, N line CT current sampling circuit and voltage sampling circuit, the input end of L line manganin current sampling circuit is arranged between L end of incoming cables S1 and N leading-out terminal S4, the input end of described N line CT current sampling circuit and voltage sampling circuit is arranged between L end of incoming cables S1 and N end of incoming cables S2, and the output terminal of described L line manganin current sampling circuit, N line CT current sampling circuit and voltage sampling circuit is connected to processor 30 respectively.
In the preferred embodiment of the single-phase single line electric meter capable of avoiding fraudulent use of electricity of the present invention, described earth terminal S5 is connected to N end of incoming cables S2.
In the preferred embodiment of the single-phase single line electric meter capable of avoiding fraudulent use of electricity of the present invention, described decompression portion 70 comprises capacitance-resistance voltage reduction circuit and mu balanced circuit, the input end of described capacitance-resistance voltage reduction circuit is connected to L end of incoming cables S1, the input end of mu balanced circuit is electrically connected on capacitance-resistance voltage reduction circuit respectively, and the output terminal of described mu balanced circuit is electrically connected on power sense circuit 90.
In the preferred embodiment of the single-phase single line electric meter capable of avoiding fraudulent use of electricity of the present invention, described infrared communication portion comprises an infrared communication port further, and the infrared reading interface of it and described near infrared reading device 4 is interconnected.
In the preferred embodiment of the single-phase single line electric meter capable of avoiding fraudulent use of electricity of the present invention, be connected together between the infrared reading interface of described infrared communication port and outside, carry out data transmission by infrared communication mode.
In the preferred embodiment of the single-phase single line electric meter capable of avoiding fraudulent use of electricity of the present invention, described input circuit 50 comprises display circuit and programmed circuit.In the preferred embodiment of the single-phase single line electric meter capable of avoiding fraudulent use of electricity of the present invention, described display circuit is provided with display control key, and is electrically connected to single-chip microcomputer 31.In the preferred embodiment of the single-phase single line electric meter capable of avoiding fraudulent use of electricity of the present invention, described programmed circuit is provided with programming control key, and is electrically connected to single-chip microcomputer 31.
Further, a kind of power detecting method of foregoing single-phase single line electric meter capable of avoiding fraudulent use of electricity, is characterized in that comprising the steps: 1, ammeter 1 powers on; 2, single-chip microcomputer 31 pairs of power mode judge, if be judged to be, electric network power line is powered, then carry out power-up initializing, if be judged to be, battery powers on, then carry out power failure initialization; 3, after power-up initializing completes, carry out powering on major cycle; After power failure initialization completes, carry out power failure major cycle; 4, after the major cycle that powers on completes, carry out lower electro-detection, still have electricity if detect, then re-start the major cycle that powers on, if detect lower electricity, then carry out power failure initialization; After the circulation that has a power failure, carry out upper electro-detection, still have a power failure if detect, then re-start power failure major cycle, power on if detect, then carry out powering on major cycle.
In the power detecting method of foregoing single-phase single line electric meter capable of avoiding fraudulent use of electricity, described in the major cycle that powers on be included in a preset time period and carry out successively: 1, metering process; 2, Graphics Processing; 3, event handling; 4, Communication processing.
In the power detecting method of foregoing single-phase single line electric meter capable of avoiding fraudulent use of electricity, described power failure major cycle is included in a preset time period to be carried out successively: 1, power failure check processing; 2, stealing event handling; 3, interrupt processing.
These are only the preferred embodiment of the present invention, is not limitation of the present invention, should understand, and all, based on the amendment done by technical solution of the present invention, alternative or change, all should be covered by the technical scope of claims of the present invention opinion.
Claims (5)
1. electric meter capable of avoiding fraudulent use of electricity, it is arranged between mains supply line and power grid user load, its Curve guide impeller is: comprise watchcase and near infrared reading device with matching, wherein in described watchcase, be provided with terminals, processor and infrared communication portion, described infrared communication portion is electrically connected to processor, L line and the N line of mains supply line access described ammeter by described terminals, and comprise decompression portion further, analog input portion, power detecting portion and strong magnetic detector, described terminals are tapped into analog input portion and decompression portion, described analog input portion is electrically connected to processor, described decompression portion is electrically connected to processor respectively by power detecting portion and strong magnetic detector, wherein said infrared communication portion cooperatively interacts with near infrared reading device and is connected, by the in addition mutually communication coupling of infrared communication mode.
2. electric meter capable of avoiding fraudulent use of electricity according to claim 1, its Curve guide impeller is: described watchcase internal fixtion has iron prop, and described near infrared reading device internal fixtion has magnetic post, and described iron prop is corresponding with the position of described magnetic post and can be adsorbed on together.
3. electric meter capable of avoiding fraudulent use of electricity according to claim 1, its Curve guide impeller is: described terminals comprise L end of incoming cables, N end of incoming cables, L leading-out terminal and N leading-out terminal, wherein said L end of incoming cables and N inlet wire termination establish mains supply line, described L leading-out terminal and N outlet termination establish power grid user load, described L end of incoming cables is tapped into N end of incoming cables, L leading-out terminal, and is connected to N leading-out terminal further; Or described terminals comprise L end of incoming cables, N end of incoming cables, L leading-out terminal and N leading-out terminal, and comprise an earth terminal further, wherein said L end of incoming cables and N inlet wire termination establish mains supply line, described L leading-out terminal and N outlet termination establish power grid user load, described L end of incoming cables is tapped into N end of incoming cables, L leading-out terminal, and being connected to N leading-out terminal further, described earth terminal is connected to N end of incoming cables.
4. electric meter capable of avoiding fraudulent use of electricity according to claim 1, its Curve guide impeller is: described analog input portion comprises L line copper-manganese current sample portion, N line CT current sample portion and voltage sample portion, the input end in described L line copper-manganese current sample portion is arranged between L end of incoming cables and N leading-out terminal, the input end in described N line CT current sample portion and voltage sample portion is arranged between L end of incoming cables and N end of incoming cables, and the output terminal in described L line copper-manganese current sample portion, N line CT current sample portion and voltage sample portion is connected to processor respectively;
Or described analog input portion comprises L line copper-manganese current sample portion, N line CT current sample portion and voltage sample portion, the input end in described L line copper-manganese current sample portion is arranged between L end of incoming cables and N leading-out terminal, the input end in described N line CT current sample portion and voltage sample portion is arranged between L end of incoming cables and N end of incoming cables, and the output terminal in described L line copper-manganese current sample portion, N line CT current sample portion and voltage sample portion is connected to processor respectively.
5. electric meter capable of avoiding fraudulent use of electricity according to claim 1, its Curve guide impeller is: described decompression portion comprises resistance-capacitance depressurization portion, power taking CT portion and voltage stabilizing portion, the input end in described resistance-capacitance depressurization portion is connected to L end of incoming cables, described voltage stabilizing portion input end is electrically connected on resistance-capacitance depressurization portion and power taking CT portion respectively, and described voltage stabilizing portion output terminal is electrically connected on power detecting portion;
Or described decompression portion comprises resistance-capacitance depressurization portion and voltage stabilizing portion, the input end in described resistance-capacitance depressurization portion is connected to L end of incoming cables, and described voltage stabilizing portion input end is electrically connected on resistance-capacitance depressurization portion respectively, and described voltage stabilizing portion output terminal is electrically connected on power detecting portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310470576.XA CN103513077B (en) | 2013-10-10 | 2013-10-10 | Electric meter capable of avoiding fraudulent use of electricity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310470576.XA CN103513077B (en) | 2013-10-10 | 2013-10-10 | Electric meter capable of avoiding fraudulent use of electricity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103513077A CN103513077A (en) | 2014-01-15 |
| CN103513077B true CN103513077B (en) | 2016-02-24 |
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| EP2955528B1 (en) * | 2012-12-28 | 2019-05-01 | Holley Technology Ltd. | Near-infrared reading device and ammeter |
| CN107219394B (en) * | 2017-06-06 | 2023-09-05 | 广东浩宁达实业有限公司 | Electric energy metering system |
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