CN1357765A - Closed electronic pre-paying intelligent read-wroite watt-hour meter - Google Patents
Closed electronic pre-paying intelligent read-wroite watt-hour meter Download PDFInfo
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- CN1357765A CN1357765A CN 00134184 CN00134184A CN1357765A CN 1357765 A CN1357765 A CN 1357765A CN 00134184 CN00134184 CN 00134184 CN 00134184 A CN00134184 A CN 00134184A CN 1357765 A CN1357765 A CN 1357765A
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Abstract
The closed electronic pre-paying intelligent read-write watt-hour meter consists of electronic watt-hour meter, user's remote controller and special remote ocntroller. The watt-hour meter consists of circuit board, display connected to the circuit board, infrared emitting and receiving tube and pulsed lighting lamp; and the user's remote controller and the special remote controller have buttons, infrared emitting and receiving tube, display screen and circuit board. It has the advantages of high stability and reliability, great data enciphering capacity, small program code space, and high running speed. It has effective preventing measures to illegal recharging and data altering.
Description
The invention belongs to the electricity-measuring meter of intelligent read, relate in particular to the electricity-measuring meter of the high intelligent read of a kind of degree of accuracy, the anti-electricity-theft pre-payment of the heterogeneous totally-enclosed full-electronic of promptly a kind of list (multiple rate) intelligent read watt-hour meter.
Traditional single-phase and three-phase electric degree (energy) table is the mechanical type gauging table mostly, needs by consuming certain electric energy its mechanical part is rotated, and drives character wheel then electric energy is measured.This class table performance falls behind, and power consumption is big, and the consumable loss was about the 20-30 degree in 1 year." pre-payment " watt-hour meter that occur recent years, also be on the basis of former stem-winder, mechanical rotation is changed into the calculating that " electric pulse " carries out the electricity charge afterwards again, shortcomings are not overcome but the intrinsic measuring accuracy of mechanical watt-hour meter is low, power consumption is big, cost is high, the calibration cycle is short etc.Therefore, just solved general charging problem.
The objective of the invention is to overcome all shortcomings of traditional mechanical watt-hour meter, provide a kind of performance superior, power consumption is little, and cost is low, the calibration cycle is long, the anti-electricity-theft pre-payment of single-phase or heterogeneous totally-enclosed full-electronic of intelligent meter data recording read-write (multiple rate) intelligent read watt-hour meter.
The object of the present invention is achieved like this:
The anti-electricity-theft pre-payment of a kind of totally-enclosed full-electronic (multiple rate) intelligent read watt-hour meter, it is characterized by: partly form by full-electronic watt-hour meter part with house type telepilot part and tailored version telepilot, the full-electronic watt-hour meter partly has shell, wiring Cang Gai is arranged on the shell, the wiring storehouse is arranged in the shell, the wiring dop is arranged in the wiring storehouse, also have circuit board in the shell and be connected the display of circuit board and infrared emission receiving tube and pulsed illumination lamp on circuit board; On the shell with house type telepilot part button and infrared emission receiving tube are arranged, circuit board is arranged in it; And on the shell of tailored version telepilot part button and infrared emission receiving tube and display screen are arranged, circuit board is arranged in it.
On the full-electronic watt-hour meter partial circuit plate phase current sensor is arranged, phase voltage sensor and zero current sensor; The phase current sensor connects comparer A1, comparer A1 connects modulus converter A/D, modulus converter A/D connects Hi-pass filter HPF, Hi-pass filter HPF connects chronotron DELAY, chronotron DELAY connects multiplier, and multiplier connects low-pass filter LPF, low-pass filter LPF linking number word frequency converter: the phase voltage sensor connects comparer A2, comparer A2 connects modulus converter A/D, and modulus converter A/D connects multiplier; The zero current sensor connects voltage comparator: the phase current sensor yet connects voltage comparator and polarity discriminating device, voltage comparator connects the cross-line warning horn, the polarity discriminating device connects the reversed polarity warning horn, numerical frequency converter, cross-line warning horn and reversed polarity warning horn are connected microcontroller, microcontroller connects carrier module, voltage monitor, working procedure monitor, E2 storer, infrared two-direction communication unit, light-emitting diode display, real-time clock, gauge tap and power supply.
The circuit of forming by the HZ301 microcontroller with the circuit board of house type telepilot part and tailored version telepilot part.
Advantage of the present invention and characteristics are to have adopted full isolation technology fully between the strong power part of circuit theory and the weak current part, and this has just improved its stability and reliability greatly.In addition, owing to adopt totally enclosed structure design, in using, the storage of data and communication used the encryption technology algorithm.This technology is big to the Cipher Strength of data, and program code takes up room little, and travelling speed is fast.Therefore, can effectively take precautions against illegally supplementing with money of pre-payment with illegal means such as altered datas.The present invention is to anti-electricity-theft design, except employing is tested to the electricity consumption situation of summary table and submeter in the mode of carrier wave transmission, in the circuit theory design, increased judgement, can effectively take precautions against electricity filching behavior because of bonding line and reversal connection line to phase line and unbalanced judgement of neutral line current and current polarity.The present invention has adopted the treatment technology of full software on the modulation and demodulation parts of the demonstration of ammeter control and infrared (or wireless) communication, design has not only reduced the cost of hardware like this, and very simple when carrying out later on that function expands, as long as it is just passable to revise software.
Below in conjunction with accompanying drawing embodiment is stated and illustrated to of the present invention analysing:
Fig. 1 is an ammeter profile synoptic diagram of the present invention.
Fig. 2 " uses house type " in the ammeter of the present invention to read and write the telepilot synoptic diagram.
Fig. 3 is " tailored version " read-write telepilot synoptic diagram in the ammeter of the present invention.
Fig. 4 is an ammeter phantom view of the present invention.
Fig. 5 is an ammeter power measurement part theory diagram of the present invention.
Fig. 6 is an ammeter computer control part theory diagram of the present invention.
Fig. 7 is the circuit structure block diagram of data transfer interface in the ammeter of the present invention.
Fig. 8 is watt-hour meter of the present invention (intelligence) house type telepilot part theory diagram.
Fig. 9 is watt-hour meter of the present invention (intelligence) tailored version telepilot part theory diagram.
Figure 10 prevents the check system of stealing carrier data midway theory diagram for full electronic watch of the present invention
Figure 11 is the electric principle diagrammatic sketch of ammeter computer power controlling metering part of the present invention.
Figure 12 is an ammeter computer control data of the present invention processing section electricity principle diagrammatic sketch.
Figure 13 is watt-hour meter of the present invention (intelligence) user and tailored version telepilot part schematic diagram.
Full-electronic watt-hour meter part among the figure: shell 1, pulsed illumination lamp 2, circuit board 3, display 4, infrared emission receiving tube 5, wiring dop 6, wiring storehouse 8, electric wire 7, wiring storehouse lid 9
Fig. 1 is an ammeter schematic diagram shown in the present, and Fig. 5, Fig. 6 are seen in the circuit theory design in its ammeter, Figure 2 shows that to read and write telepilot with house type in the ammeter function, and described principle is seen Fig. 8, and Fig. 3 be that the tailored version in the ammeter function is read and write telepilot.Described principle is seen Fig. 9.Below be watt-hour meter course of work narration of the present invention.
Divide main element and optional feature whole composition the of the present invention, and main element is an ammeter itself, and the closure packing is arranged, and mounting hole is arranged on the shell.Optional feature is " using house type " and " tailored version " read-write telepilot, uses different enclosure designs respectively.
Watt-hour meter of the present invention is made up of power measurement and microcontroller and non-contact read-write device unit.Described power measurement is after analog signal conversion such as electric current and voltage are become digital signal, just can not produce error again in the process of its calculating and processing, and error is less than 0.2% in the scope of the 2%-400% that can accomplish at the nominal range.Described microcontroller is shared with other control and the processing capacity of ammeter, has carried out low power dissipation design on circuit.Down static, microcontroller only consumes several microamperes electric current and is furnished with voltage monitor and the program run monitor, and the assurance control system is moved stably in a long term.Described read-write intelligent apparatus is that the present invention is the additional telepilot of off-balancesheet, pass through Touchless manipulation, communication information comprised check meter, the releasing of the supplementing with money of pre-payment, stealing locking, the setting of multiple rate time unit price, and data write or print to connect etc. can realize effectively that automatic watch controls outward, not only convenient but also safe and reliable, the destruction that prevents artificial his-and-hers watches.
The characteristics of maximum of the present invention are to adopt up-to-date EMC Design technology, are highly resistant to static discharge, radio-frequency radiation and momentary pulse group's interference.
Ammeter power measurement principle of the present invention, as shown in Figure 5, wherein said T1 converts load current to voltage pro rata, after A1 amplifies, sends into converter A/D1, the simulation conversion of signals is become digital signal, through HPF handle and the DELAY phase correction after, send into multiplier, T2 the load voltage step-down after, send into P1, P1 finely tunes this voltage when calibration, and this voltage is sent into A/D2 after A2 amplifies, carry out the conversion of analog to digital signal, send into multiplier then, multiplier obtains representing the value of active power representing two magnitudes of voltage of load current and load voltage to multiply each other, handle through LPF and DTF, it is become and the proportional pulse train of performance number.
Polarity discriminating device circuit judges that electric current is to flow to load end or flow to current terminal from load end from power end, if the latter just sends alerting signal.T1 is the current sensor of phase line, the phase line current conversion is become voltage signal V1, T3 is the current sensor on the zero line, current conversion on the zero line is become voltage signal V2, when normal electricity consumption, phase line should equate basically with the electric current of zero line, even it is unequal, difference is also very little, when the people carried out stealing by bonding line, the electric current of phase line and zero line was with different, and voltage comparator compares at any time to the voltage V1 and the V2 of T1 and T3 generation, in case after their difference exceeds certain scope, will send alerting signal.
Ammeter micro computer of the present invention part as shown in Figure 6, whole logic control work of whole ammeter are finished by microcontroller, it is the intelligent kernel of whole ammeter, it is powered by supply convertor, wave filter improves the ammeter anti-jamming capacity.Voltage monitor and program run monitor, be to work stably in a long term for the guarantee microcontroller, voltage monitor monitors the supply voltage of microcontroller, in case voltage fluctuates, for ensureing the microcontroller reliably working, it will make microcontroller enter reset mode, in order to avoid generation maloperation, the program run monitor, normally whether supervisory programme operation, in case program is because of disturbing " flying ", it can make microcontroller automatically reset, again normally operation, microcontroller has three input signals: the metrical pulse signal, the cross-line alerting signal, the reversed polarity alerting signal, it also has been equipped with following external device (ED):
● the E2 memory: its storage power consumption and pre-payment, the multiple required various parameters of rate, and after guaranteeing outage, the Chief Information Officer time does not lose.
● the infrared two-direction communication unit: it provides ammeter and extraneous information bidirectional passage, and can accomplish the totally enclosed transmission information of noncontact.
● light-emitting diode display: it is responsible for showing the power consumption and the various state parameter of ammeter.
● real-time clock: be used for the timing exactly of multiple rate.
● gauge tap: in pre-payment, when pre-payment was lower than a certain numerical value, microcontroller was by the power supply of gauge tap cut-out to load.
● carrier module: but microcontroller is finished ammeter and external information transmission by its electrification line with power carrier signal.
As shown in Figure 7, the circuit structure diagram of data transfer interface in the ammeter end ammeter of the present invention.Fig. 7-1 is a microcontroller, other control and the processing capacity of it and ammeter are shared, the software that it contains is responsible for the data that transmit are carried out encryption and decryption, the data that send are carried out the software modulation, and it can send running status, the pre-payment situation of ammeter, time, the rate set condition of multiple rate.Anti-electricity-theft and lock-out state, and regularly regularly used energy data is returned to conveying with the form of carrier wave by circumscripted power line.It receives: the charging information of pre-payment, and the set information of multiple rate period and rate.To the control command of ammeter display, to the control command of stealing locking.Driving circuit Fig. 7-5 that its information that will send is at first delivered to infrared (or wireless) power valve gives infrared (or wireless) power valve Fig. 7-2 after power amplification, by infrared ray (or wireless) data are sent to hand-held remote controller Fig. 2 or Fig. 3.Hand-held remote controller Fig. 2 or Fig. 3 send to the information of ammeter, also be at first to be sent to infrared ray (or wireless) receiving tube Fig. 7-3 by infrared ray (or wireless), through demodulator circuit Fig. 7-4, give microcontroller Fig. 7-1 numerical information after the demodulation, microcontroller Fig. 7-1 makes amendment to the parameter of ammeter according to the information that receives.
Fig. 2 and Fig. 3 are hand-held remote controller, divide two types.Fig. 2 is that the user uses " using house type " telepilot, " tailored version " telepilot that Fig. 3 uses for managerial personnel.Fig. 2 " uses house type " telepilot is telepilot that electricity consumer oneself uses mainly is to be used for transmitting the information of pre-payment and the display of ammeter being controlled to ammeter, to obtain the running status of ammeter.Its circuit structure as shown in Figure 8.Wherein said Fig. 8-1 is a microcontroller, and it is responsible for transmitting and receiving of data.It sends prepaying charge information, sends the control command to the ammeter display, receives the affirmation information of ammeter after obtaining charging information.The circuit of this part is the same with ammeter end Fig. 7 data-interface.Microcontroller carries out read and write by prepaid card interface schema 8-3 to prepaid card.Microcontroller receives user's control commands by keyboard layout 8-2.When
When key was pressed, it sent to ammeter to the load value data of reading from prepaid card, when
It received the status information of ammeter payment correctness when key was pressed, as supplemented with money correctly, and it is the data zero clearing in the prepaid card.Then this state is sent to ammeter, charging information is just effective, when
When pressing, the circulation of ammeter display shows each parameter of ammeter operation.In addition, also the formal argument of prepaid card load value data can be become system program directly its telepilot load value data to be imported as required.
Fig. 3 " tailored version telepilot " is the telepilot that the power supply department managerial personnel use, and it can be checked electric supply meter, and the ammeter running parameter is made amendment and to the releasing of stealing locking.Its circuit structure as shown in Figure 9.Fig. 9-5 is infrared ray (or wireless) data transfer circuit, this part with ammeter in circuit the same.Fig. 9-1 is a microcontroller, and it controls LCD Fig. 9-2, carries out the interface schema 9-3 of data transmission and the interface schema 9-4 of printer with PC, accepts user's control by keyboard layout 9-6.The information of the various operations of LCD Fig. 9-2 display remote controller, PC interface schema 9-3 can be from PC the modification information to the ammeter parameter, download in the telepilot in advance, simultaneously also can the telepilot collection in worksite to data be sent in the PC, offer management software, further handle.Printer interface Fig. 9-4 can connect mini-printer at the scene, carries out various printings of urging expense list, advice note.Microcontroller is accepted user's control by keyboard layout 9-6, finishes various operations, when
When key is pressed, can be the table number of certain electric supply meter, the paying situation, but the various running parameters of ammeter are copied in the memory of telepilot and on-site examination, handle.When
When key is pressed, can send to ammeter to the information of each period that is stored in the multiple rate in the telepilot in advance and each period rate, to revise the multiple rate parameter of ammeter.When
When key was pressed, the various data that telepilot is collected at the scene sent PC to.When
When key is pressed, can from PC, download to the various data that the scene will be used in advance in the telepilot, when
When key is pressed, can be by various expense list and the advice notes of urging of mini-printer field print.If desired the ammeter that locks because of stealing is carried out release, need press earlier
Key is seen the current various states of ammeter clearly, during as the need release, presses again
Key gets final product release.
Figure 10 goes up the i.e. outer lines stealing midway of source line for ammeter of the present invention is described difference data carrier returns to prompting, that is to say electric energy sum that all user's submeters under the every summary table are consumed in the certain hour section just and the summary table overhead data match, it is normal to belong to electricity consumption data feedback, otherwise, data carrier returns to the numerical information that shows and differs greatly, and then means the possibility of electricity filching behavior.
In a word, full electronic watch of the present invention both can be used as single-phase heterogeneous summary table, also can be used as single-phase heterogeneous submeter.Connection is is each other installed and used, and can avoid reaching the standard grade midway and theft power stealing behaviors such as roll off the production line various cross-lines, reversed polarity.Owing to adopt totally-enclosed design, make the globality of ammeter have more the feature of the age, realized the intelligence operation of non-contact type pre-payment and other function, on its technical feature and comprehensive function, all surmounted the traditional electrical kilsyth basalt far away.
Claims (3)
1, the anti-electricity-theft pre-payment of a kind of totally-enclosed full-electronic (multiple rate) intelligent read watt-hour meter, it is characterized by: partly form by full-electronic watt-hour meter part with house type telepilot part and tailored version telepilot, the full-electronic watt-hour meter partly has shell, wiring Cang Gai is arranged on the shell, the wiring storehouse is arranged in the shell, the wiring dop is arranged in the wiring storehouse, also have circuit board in the shell and be connected the display of circuit board and infrared emission receiving tube and pulsed illumination lamp on circuit board; On the shell with house type telepilot part button and infrared emission receiving tube are arranged, circuit board is arranged in it; And on the shell of tailored version telepilot part button and infrared emission receiving tube and display screen are arranged, circuit board is arranged in it.
2, the anti-electricity-theft pre-payment of totally-enclosed full-electronic according to claim 1 (multiple rate) intelligent read watt-hour meter is characterized by: on the full-electronic watt-hour meter partial circuit plate phase current sensor is arranged, phase voltage sensor and zero current sensor; The phase current sensor connects comparer A1, comparer A1 connects modulus converter A/D, modulus converter A/D connects Hi-pass filter HPF, Hi-pass filter HPF connects chronotron DELAY, chronotron DELAY connects multiplier, multiplier connects low-pass filter LPF, low-pass filter LPF linking number word frequency converter; The phase voltage sensor connects comparer A2, and comparer A2 connects modulus converter A/D, and modulus converter A/D connects multiplier; The zero current sensor connects voltage comparator; The phase current sensor yet connects voltage comparator and polarity discriminating device, voltage comparator connects the cross-line warning horn, the polarity discriminating device connects the reversed polarity warning horn, numerical frequency converter, cross-line warning horn and reversed polarity warning horn are connected microcontroller, microcontroller connects carrier module, voltage monitor, working procedure monitor, E2 storer, infrared two-direction communication unit, light-emitting diode display, real-time clock, gauge tap and power supply.
3, the anti-electricity-theft pre-payment of totally-enclosed full-electronic according to claim 1 (multiple rate) intelligent read watt-hour meter is characterized by: the circuit of using house type telepilot part and tailored version telepilot circuit board partly to be made up of the HZ301 microcontroller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001341847A CN1163757C (en) | 2000-12-08 | 2000-12-08 | Closed electronic pre-paying intelligent read-wroite watt-hour meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001341847A CN1163757C (en) | 2000-12-08 | 2000-12-08 | Closed electronic pre-paying intelligent read-wroite watt-hour meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1357765A true CN1357765A (en) | 2002-07-10 |
| CN1163757C CN1163757C (en) | 2004-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001341847A Expired - Fee Related CN1163757C (en) | 2000-12-08 | 2000-12-08 | Closed electronic pre-paying intelligent read-wroite watt-hour meter |
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| CN (1) | CN1163757C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102496210A (en) * | 2011-12-07 | 2012-06-13 | 石家庄科林电气股份有限公司 | Electric meter prepayment system |
| CN101040293B (en) * | 2004-10-12 | 2013-11-13 | 优赛股份有限公司 | Prepayment system for electric power meters using a contactless smart card with an automatic supply cut-off device |
| CN104578415A (en) * | 2014-12-30 | 2015-04-29 | 国家电网公司 | Data collection terminal |
| CN105717335A (en) * | 2014-12-01 | 2016-06-29 | 安科瑞电气股份有限公司 | Embedded electric energy meter with comprehensive electricity stealing prevention structure |
| DE202017002385U1 (en) * | 2017-05-08 | 2018-05-09 | Hans Peter Bauer | Additional device for an electricity meter |
-
2000
- 2000-12-08 CN CNB001341847A patent/CN1163757C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101040293B (en) * | 2004-10-12 | 2013-11-13 | 优赛股份有限公司 | Prepayment system for electric power meters using a contactless smart card with an automatic supply cut-off device |
| CN102496210A (en) * | 2011-12-07 | 2012-06-13 | 石家庄科林电气股份有限公司 | Electric meter prepayment system |
| CN105717335A (en) * | 2014-12-01 | 2016-06-29 | 安科瑞电气股份有限公司 | Embedded electric energy meter with comprehensive electricity stealing prevention structure |
| CN105717335B (en) * | 2014-12-01 | 2018-08-07 | 安科瑞电气股份有限公司 | A kind of embedded electric energy meter with Omnibearing anti-electricity-theft structure |
| CN104578415A (en) * | 2014-12-30 | 2015-04-29 | 国家电网公司 | Data collection terminal |
| DE202017002385U1 (en) * | 2017-05-08 | 2018-05-09 | Hans Peter Bauer | Additional device for an electricity meter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1163757C (en) | 2004-08-25 |
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Granted publication date: 20040825 Termination date: 20131208 |