CN201259703Y - CPU card three phase electronic type pre-payment step electricity price electrical energy meter - Google Patents
CPU card three phase electronic type pre-payment step electricity price electrical energy meter Download PDFInfo
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- CN201259703Y CN201259703Y CNU2008200958947U CN200820095894U CN201259703Y CN 201259703 Y CN201259703 Y CN 201259703Y CN U2008200958947 U CNU2008200958947 U CN U2008200958947U CN 200820095894 U CN200820095894 U CN 200820095894U CN 201259703 Y CN201259703 Y CN 201259703Y
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Abstract
The utility model discloses a CPU card single and three-phase electronic prepaid stepped electricity price watt-hour meter, comprising an interface unit, a power circuit unit, a power metering and electrical parameter detection unit, a power meter cut-off mechanism, an MCU control unit, a display unit, an ESAM unit and an alarm unit, wherein, the MCU control unit comprises a communication module (100), a clock module (101), a power measurement module (102), a storage module (103), a display control module (104), a fee rate calculation module (105) and an alarm control module (106). The watt-hour meter structure can realize electric bill calculation with stepped electricity price and can offer different electricity prices based on the monthly electricity consumption of users, so that the power supply bureau can flexibly select the electricity consumption encouragement policy or the electricity consumption restriction policy.
Description
Technical field
The utility model relates to a kind of electric energy meter, and specifically relating to a kind of is the electric energy meter of the automatic control electricity consumption metering and the electricity consumption clearing of message exchange medium with the CPU card.
Background technology
Along with the fast development of electronic technology, large scale integrated circuit is widely used in electric energy meter.Traditional induction type electric energy meter needs the staff to check meter to the doorstep or power on/off, the calculating electricity charge, the mailing electricity charge are single etc., and delay in payment and bad credit problem can appear, particularly in the customer group of power supply enterprise, power consumption is bigger, the electricity charge amount of dealing with is also bigger, its electricity charge of recovery in time are emphasis and the difficult points during power supply enterprise manages, and the different time period of very difficult implementation is adopted different electricity consumption regulation measures such as rate.
And electronic electric energy meter is compared with induction type electric energy meter, has the measuring accuracy height, and overload capacity is strong, and power consumption is low, and is stable and reliable for performance, and volume is little, and is in light weight, easy and simple to handle, is easy to realize the characteristics such as expansion, a-table-multi-purpose of management function.The full electronic multifunctional electric energy meter adopts the high-precision measuring chip, finishes the precision of various electrical quantitys and calculates and measure, and can realize copying and accepting automatically and bank's networking, settling accounts the technology of the electricity charge automatically of user power utilization amount.
Existing prepayment meter in the prior art, but rate is generally more fixing, perhaps stipulates multiple rate, thus need certain storage space.Less for the demonstration of information in addition, lack prompting function and emergency function that insufficient in amount etc. occurs, bring some inconvenience therefore for user's use.
The utility model content
The purpose of this utility model is to propose the CPU card three phase electronic type pre-payment step electricity price electrical energy meter of a species stage electricity price, can give different electricity prices every month size according to the user power utilization amount, plays the purpose of encouraging electricity consumption or brownout.
For achieving the above object, the utility model provides a kind of CPU card three phase electronic type pre-payment step electricity price electrical energy meter, this electric energy meter comprises interface unit, the power circuit unit, electric energy metrical and electrical parameters detection unit, the ammeter power cutoff mechanism, the MCU control module, display unit, ESAM unit and alarm unit, described interface unit, power circuit unit and electric energy metrical and electrical parameters detection unit input to the MCU control module respectively, MCU control module output power cut-off information is to the ammeter power cutoff mechanism, and described power circuit unit provides power supply for electric energy metrical and electrical parameters detection unit simultaneously; Described ESAM unit is connected between interface unit and the MCU control module, and described display unit and alarm unit activate by the control information of MCU control module output.
Described alarm unit comprises voice-control alarm circuit and light control alarm circuit, and wherein the voice-control alarm circuit is realized by hummer, and the light control alarm circuit is normal bright or flicker realization by light emitting diode.
Described MCU control module comprises communication module, clock module, the power measurement module, memory module, display control module, rate computing module and alarm control module, wherein, described communication module, clock module and power measurement module all input to indicative control unit and memory module respectively with each self-information, described memory module output is connected to rate computing module and display control module, the one output terminal output power cut-off information of described rate computing module, two output terminals are distinguished control modules taking alarm and display control module in addition, described controlling alarm unit one output termination display control module, another output terminal output alarm information, described display control module output display control information.
Described rate computing module 105 comprises N comparer: first comparer to the N comparer, N selector switch: first selector to the n-selector, 2N+1 multiplier and two totalizers: first adder and second adder, wherein, of that month current power consumption E inputs to an input end of N comparer, step electric weight E respectively
1To E
NAnother input end of the described N of a difference comparer, each comparer, a selector switch and corresponding multiplier are formed one group, be divided into the N level according to the step electric weight that is inserted, in described the 1st to the N-1 level, the output fiducial value of comparer at the corresponding levels inputs to the selecting side of selector switch at the corresponding levels and the Enable Pin of next stage selector switch simultaneously, and two input ends of each grade selector switch are the output terminal of corresponding two multipliers respectively, and wherein first selector is in enabled state all the time; In the described N level, the N comparator output terminal only is connected to the selecting side of n-selector, and an input termination one multiplier output terminal of corresponding n-selector, and another input end inserts the output of two multipliers through the first adder sum; The output of the N that fails selector switch obtains the of that month current electricity charge through the second adder addition.
Described MCU control module comprises that also one is connected between described rate computing module and the ammeter power cutoff mechanism and is used for controlling the overdraw processing module that described ammeter power cutoff mechanism is carried out power operation in the overdraw electricity consumption during to the overdraw amount of money thresholding set, and described communication module input overdraw amount of money thresholding and overdraw rate are to described overdraw processing module.
Described MCU control module also comprises buys the electricity consumption processing module on dredit, is connected in before the described ammeter power cutoff mechanism, and described communication module input is bought amount of money thresholding on dredit and bought rate on dredit to the described electricity consumption processing module of buying on dredit, can buy electricity consumption on dredit to buying amount of money thresholding on dredit.
Described MCU control module also comprises a load control module, the output terminal of an input termination power measurement module of described load control module, and another input end is connected the customer charge thresholding of news module output; One output terminal control module taking alarm, the second output termination ammeter power cutoff mechanism, the 3rd output termination display control module, described load control module is by the number of times of customer charge thresholding control user power utilization overload.
This electric energy meter comprises the lead sealing of loam cake plastics, loam cake lead sealing screw, loam cake, warning indication, pulse indication, toll bar, CPU card and CPU card slot, and wheel shows button, loam cake lead sealing screw, the plumbous system of loam cake lead sealing, connector socket, wiring end cap lead sealing screw, wiring end cap, button, binding post gib screw, binding post, pulse test output, infrared communication interface, LCD, panel and drain pan are set.
The display items of described LCD comprises reveal codes, ladder electricity charge kind sign, unit, the indication of remaining sum bar rod, data presentation item, communications identification and reverse electricity consumption sign.
Described LCD is by showing from driving wheel or the apparent key control video data of pressing of wheel, and described video data is by reveal codes and data presentation item district office display data item.
The beneficial effects of the utility model are: described electric energy meter has adopted the ladder electricity price, can give different electricity prices according to the size of every month power consumption of user, in the basic electricity weight range, use an electricity price, the power consumption that exceeds the basic electricity amount uses another electricity price, therefore make things convenient for power supply administration to select to encourage electricity consumption or brownout policy flexibly, and need not save storage space by a large amount of electricity price data of different period storages.In addition, when ammeter detects overload or remaining sum deficiency and needs outage, all can send sound and light alarm; Can also be provided with simultaneously and give user certain overload number of times, facility extent and buy amount on dredit, prevent that sudden power from making troubles to user job life and lose, this electric energy meter also provides a moon basic electricity amount of money function, and clock and watch show and realtime power shows real-time burden functional, make things convenient for the inquiry of user and power supply enterprise.
Description of drawings
Fig. 1 is the one-piece construction block diagram of the described electric energy meter of the utility model embodiment;
Fig. 2 is the structured flowchart of the described rate computing module of the utility model embodiment;
Fig. 3 is a kind of electric energy meter product that the utility model adopts the described electric energy meter structure of the utility model embodiment to produce;
Fig. 4 (a) is that the binding post of the described electric energy meter product of the utility model embodiment indicates;
Fig. 4 (b) is the wiring diagram of the described electric energy meter product of the utility model embodiment;
Fig. 5 is the display structure of the described display unit of this embodiment.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is explained in detail.
Be illustrated in figure 1 as the one-piece construction block diagram of the described electric energy meter of the utility model embodiment, this electric energy meter comprises interface unit, ESAM unit, power circuit unit, electric energy metrical and electrical parameters detection unit, display unit, ammeter power cutoff mechanism, alarm unit and MCU control module, and wherein the MCU control module comprises communication module 100, clock module 101, power measurement module 102, memory module 103, display control module 104, rate computing module 105 and alarm control module 106.
Wherein, described power circuit unit comprises external power supply and RTC real time clock circuit, described external power supply provides power supply for clock module, electric energy metrical and the electrical parameters detection unit of MCU control module, described RTC real time clock circuit provides standby power supply for clock module, make when external power supply cuts off the power supply, the clock internal unit still keeps duty.
Described interface unit comprises infrared interface and CPU card.In this specific embodiment, described CPU cassette tape cipher controlled, and adopt the 3-DES algorithm, have more compatibility.When inserting the CPU card to interface unit, the ESAM unit carries out the key authentication process, if authentication is not by then refusing dress, if whether authentication is anti-ly hoarded, is purchased Denso electricity number of times and mate by then detecting, if do not match then refusal dress electricity, if coupling then enters the dress electric process, with the information in the CPU card, comprise that purchasing the electric amount of money inputs to communication module 100, the relevant parameter value in the adjustment form with other parameter;
Described communication module 100, clock module 101 and power measurement module 102 all input to each self-information storage in the memory module 103, wait for that rate computing module 105 therefrom reads out the calculating of carrying out the electricity charge, thereby obtain remaining sum, when remaining sum is lower than the pre-alarm thresholding of setting, then rate computing module 105 output remaining sum pre-alarm information make the alarm unit that links to each other with controlling alarm unit 106 send warning to controlling alarm unit 106; When remaining sum is lower than the alarm threshold of setting, then rate computing module 105 output remaining sum warning messages are to controlling alarm unit 106, make alarm unit send warning, export power cut-off information simultaneously to the ammeter power cutoff mechanism, described alarm unit comprises voice-control alarm and two kinds of circuit of light control alarm, according to the corresponding startup of the control information of controlling alarm unit 106, wherein, in this embodiment, described light control alarm circuit produces the normal bright or two kinds of type of alarms that glimmer by the LED lamp, and described sound control circuit is realized by hummer.
Described communication module 100, clock module 101, power measurement module 102, memory module 103, rate computing module 105, alarm control module 106 input to display control module 104 respectively, control the corresponding information that display unit shows each module by display control module 104 according to showing from driving wheel with the apparent mode that combines of button wheel.
Wherein, as shown in Figure 2, described rate computing module 105 comprises N comparer: first comparer to the N comparer; N selector switch: first selector to the n-selector; 2N multiplier, first adder and second adder, wherein, the corresponding selector switch of each comparer is according to the step electric weight E of input
1To E
NLine up the N level successively, another input end of a described N comparer is all imported of that month current power consumption E, wherein, and first comparer of first order input E
1, partial second comparer input E
2, the N comparer of N level is imported E successively
NIn the described N level combination, the comparator output signal at the corresponding levels of preceding N-1 level inputs to the selecting side C of selector switch at the corresponding levels and the Enable Pin ENB of next stage selector switch simultaneously, wherein first selector enables the termination high level, remain enabled state, but the comparator output terminal of N level only inserts the selecting side of selector switch at the corresponding levels;
Simultaneously, the output terminal of corresponding two multipliers of two input ends of each selector switch difference in the preceding N-1 level, but the S of N level selector switch
1End is input as two multipliers through first adder sum, S
1The output terminal of termination one multiplier; Wherein in this specific embodiment selector switch, when C=1, select output S
2End signal is selected output S when C=0
1End signal, selector switch all exports zero when selecting side or Enable Pin are high resistant or not stationary state.
The output terminal of a described N selector switch all is connected to the input end of second adder, thereby obtains of that month current energy charge.
Wherein, described this month, current power consumption E was by memory module 103 outputs; N is a natural number, and the step electric weight should satisfy: 0≤E
1≤ E
2≤ E
3≤ ...≤E
N, N step electric weight E being provided with of electric energy meter then
1To E
NAdjacent in twos with electric weight be divided into N+1 interval, be respectively: [0, E
1), [E
1, E
2) up to [E
N,+∞], each interval corresponding electricity price is used P successively
0To P
NExpression.Wherein, ladder electricity price P
0To P
NCan satisfy ascending order power and arrange, then this ladder electricity price plays the purpose of its brownout; If described N+1 electricity price P
0To P
NDescending sort successively, then this ladder electricity price plays the purpose of encouraging electricity consumption.Therefore power supply administration can be provided with different ladder electricity prices by the CPU card, thereby can ration the power supply or encourage electricity consumption flexibly, and can control the degree of brownout and encouragement electricity consumption flexibly, and owing to only needs access step electric weight E
1To E
NWith ladder electricity price P
0To P
N, can save storage space by the step number of setting electric weight.
Be example with N=2 in this embodiment, the concrete course of work of described rate computing module 105 be described in detail that when N was 2, rate computing module 105 then shown in Figure 2 comprised 2 comparers, two selector switchs, four multipliers and two totalizers.
If of that month current power consumption E is less than E
1, then first comparer is output as zero, and then described first selector is selected multiplier E*P
0Product export second adder to, other selector switch is not enabled, the of that month current electricity charge that then described rate computing module 105 calculates are E*P
0
If of that month current power consumption E belongs to interval [E
1, E
2) when interior, then first comparer is output as 1, second selector is in enabled state, and second selector output 0, and the of that month current electricity charge that then described rate computing module 105 calculates are: E
1* P
0+ (E-E
1) * P
1
If the highest step electric weight E that of that month current power consumption E sets greater than this embodiment
2The time, then described two comparers are all exported 1, two selector switch and all are in enabled state, and this moment, second selector was the selector switch of the highest step electric weight correspondence, then it is output as two multiplier sums, and the of that month current electricity charge that then described rate computing module 105 calculates are: E
1* P
0+ (E
2-E
1) * P
1+ (E-E
2) * P
2
Consider when residue electricity charge deficiency, the ammeter sudden power, may cause certain loss to the user, enterprise customer particularly, electric energy meter described in the utility model also comprises an overdraw processing module, described overdraw processing module is connected between rate computing module 105 and the ammeter power cutoff mechanism, and communication module 100 input overdraw amount of money thresholdings and overdraw rate are to described overdraw processing module, the electric weight that produces after the residue electricity charge are zero is the overdraw electric weight, calculate the overdraw electricity charge according to described overdraw rate, the user can overdraw electricity consumption to described overdraw amount of money thresholding.
Simultaneously, electric energy meter described in the utility model also comprises buys the electricity consumption processing module on dredit, be connected between described overdraw processing module and the described ammeter power cutoff mechanism, equally, communication module 100 inputs are bought amount of money thresholding on dredit and are bought rate on dredit to the described electricity consumption processing module of buying on dredit, reach the electric weight that produces behind the overdraw amount of money thresholding when the electricity charge that can overdraw for buying electric weight on dredit, calculate and buy the electricity charge on dredit according to the described rate of buying on dredit, the user can buy the extremely described amount of money thresholding of buying on dredit of electricity consumption on dredit.
Described overdraw processing module and buy the electricity consumption processing module on dredit and can not comprise simultaneously, if when not comprising the overdraw processing module, the then described electricity consumption processing module of buying on dredit is connected between rate computing module 105 and the ammeter power cutoff mechanism, directly activates the described electricity consumption processing module of buying on dredit after the residue electricity charge are zero.
In addition, for preventing the electricity consumption of user's overload, electric energy meter described in the utility model also comprises a load control module, the output terminal of an input termination power measurement module 102 of described load control module, and another input end is connected the customer charge thresholding of news module 100 outputs; One output terminal control module 106, the second output termination ammeter power cutoff mechanism taking alarm, the 3rd output termination display control module shows overload information.
Whether described load control module judges current demand and current power all greater than the customer charge thresholding by the power load of a load thresholding limited subscriber is set, and if not, then electric energy meter continues operate as normal;
If then send power cut-off information, judge whether overload outage number of times allows number of times greater than maximum, if be not more than the maximum number of times that allows, then starts the overload pre-alarm, and overload outage number of times adds up, and the user can be by button or plug-in card restore electricity voluntarily; Otherwise start the overload power alarm, and must just can restore electricity by sale of electricity department.
Be illustrated in figure 3 as the electric energy meter product that adopts the described electric energy meter structure of the utility model embodiment, this electric energy meter comprises loam cake plastics lead sealing 1, loam cake lead sealing screw 2, loam cake 3, report to the police and indicate 4, pulse indication 5, toll bar 6, CPU card and CPU card slot 7, wheel shows button 8, loam cake lead sealing screw 9, the lead sealing 10 of the plumbous system of loam cake, connector socket 11, wiring end cap lead sealing screw 12, wiring end cap 13, button 14 is set, binding post gib screw 15, binding post 16, pulse test output 17, infrared communication interface 18, LCD 19, panel 20 and drain pan 21.
The described button 14 that is provided with is for being provided with or the zero clearing button; Described have four binding posts accordingly with binding post 16; shown in Fig. 4 (a); be respectively: phase line inserts, phase line picks out, center line inserts and center line output; its wiring relation is shown in Fig. 4 (b); the utility model embodiment adopts the 5KV isolation voltage, is output as the 50V DC voltage; maximum current is that 5. the optocoupler of 50mA is exported as electrical energy pulse and 8., shown in the frame of broken lines, this optocoupler does not possess external power source and protective capability.Even the insulation that can bear 5KV between optocoupler output and other loop of electric energy meter is therefore breakdown function of measuring and other control function that can not influence electric energy meter of the optocoupler output terminal of electric energy meter inside; Connect a coil auxiliary detection power consumption parameter between phase line and the center line.
When outage condition satisfies, when electric energy meter disconnects power load, if the user externally turnover line of short circuit electric energy meter shown in Fig. 4 (a) carries out stealing, electric energy meter can detect this electricity filching behavior, after this behavior duration surpasses 1 minute, shows on the liquid crystal display that stealing indicates, when if electricity filching behavior continues more than 1 minute again, the number of times that electric energy meter will take place by the stealings of memory module 103 record and total stealing time, wherein in this embodiment, the time is minute to measure.
As shown in Figure 5, the display items of described LCD 19 comprises reveal codes 501, ladder electricity charge kind sign 502, unit 503, remaining sum bar rod indication 504, data presentation item 505, communications identification 506 and reverse electricity consumption sign 507, wherein, in this embodiment, data item such as described data presentation item 505 displaying contents comprise the electricity consumption data, parameter is set, historical data, time, current realtime power, the parameter that relates in the electric energy meter all can show by this data item, and adopt 2 decimals of 6 integers to show in this embodiment; Described reveal codes 501 adopts historical electricity consumption data of 2 bit flag data representations and ammeter that parameter is set; Described ladder electricity charge kind sign 502 usefulness T1, T2, T3 and T4 indicate.
In this embodiment, described remaining sum bar rod indication 504 each stick are represented the remaining sum of 10 monetary units, have 9 sticks.When remaining sum during more than or equal to 90 monetary units, the bar rod is complete to be shown; During less than 90 monetary units, show 8 sticks more than or equal to 80 monetary units; By that analogy, when remaining sum during less than 10 monetary units, the bar rod does not show.
It should be noted that, described data presentation item 505 is not limited to 2 decimal modes of described 6 integers of this embodiment, described reveal codes 501 also is not limited to the described figure place of this embodiment, as long as other satisfy, and the reveal codes figure place that enough identifies display items display all belongs to protection domain of the present utility model; Described ladder rate kind sign 502 also is not limited to four kinds of indications of the described T1 to T4 of this embodiment, belongs to protection domain of the present utility model as long as other can distinguish the ladder rate kind number average that electric energy meter stores; Described remaining sum bar rod indication 504 also is not limited to described 9 sticks of this embodiment, and it showing that the mode of remaining sum amount all belongs to the scope of the utility model protection, as long as other can know.
Described LCD 19 also is not limited to described demonstration item number of this embodiment and display mode, as long as other the apparent and apparent display mode that combines of button wheel from driving wheel that can meet consumers' demand all belongs to the claimed scope of the utility model.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (8)
1, CPU card three phase electronic type pre-payment step electricity price electrical energy meter, it is characterized in that, this electric energy meter comprises interface unit, power circuit unit, electric energy metrical and electrical parameters detection unit, ammeter power cutoff mechanism, MCU control module, display unit, ESAM unit and alarm unit, described interface unit, power circuit unit and electric energy metrical and electrical parameters detection unit input to the MCU control module respectively, MCU control module output power cut-off information is to the ammeter power cutoff mechanism, and described power circuit unit provides power supply for electric energy metrical and electrical parameters detection unit simultaneously; Described ESAM unit is connected between interface unit and the MCU control module, and described display unit and alarm unit activate by the control information of MCU control module output.
2, CPU card three phase electronic type pre-payment step electricity price electrical energy meter according to claim 1, it is characterized in that, described MCU control module comprises communication module (100), clock module (101), power measurement module (102), memory module (103), display control module (104), rate computing module (105) and alarm control module (106), wherein, described communication module (100), clock module (101) and power measurement module (102) all input to each self-information respectively indicative control unit (104) and memory module (103), described memory module (103) output is connected to rate computing module (105) and display control module (104), the one output terminal output power cut-off information of described rate computing module (105), two output terminals are distinguished control modules taking alarm (106) and display control module (104) in addition, described controlling alarm unit (106) one output termination display control modules (104), another output terminal output alarm information, described display control module (104) output display control information.
3, CPU card three phase electronic type pre-payment step electricity price electrical energy meter according to claim 2, it is characterized in that, described rate computing module (105) comprises N comparer: first comparer to the N comparer, N selector switch: first selector to the n-selector, 2N+1 multiplier and two totalizers: first adder and second adder, wherein, of that month current power consumption E inputs to an input end of N comparer respectively, step electric weight E1 to EN is another input end of a described N comparer respectively, each comparer, one selector switch and corresponding multiplier are formed one group, be divided into the N level according to the step electric weight that is inserted, in described the 1st to the N-1 level, the output fiducial value of comparer at the corresponding levels inputs to the selecting side of selector switch at the corresponding levels and the Enable Pin of next stage selector switch simultaneously, and two input ends of each grade selector switch are the output terminal of corresponding two multipliers respectively, and wherein first selector is in enabled state all the time; In the described N level, the N comparator output terminal only is connected to the selecting side of n-selector, and an input termination one multiplier output terminal of corresponding n-selector, and another input end inserts the output of two multipliers through the first adder sum; The output of the N that fails selector switch obtains the of that month current electricity charge through the second adder addition.
4, CPU card three phase electronic type pre-payment step electricity price electrical energy meter according to claim 2, it is characterized in that, described MCU control module comprises that also one is connected between described rate computing module (105) and the ammeter power cutoff mechanism and is used for controlling the overdraw processing module that described ammeter power cutoff mechanism is carried out power operation in the overdraw electricity consumption during to the overdraw amount of money thresholding set, and described communication module input overdraw amount of money thresholding and overdraw rate are to described overdraw processing module.
5, according to claim 2 or 4 described CPU card three phase electronic type pre-payment step electricity price electrical energy meters, it is characterized in that, described MCU control module also comprises buys the electricity consumption processing module on dredit, be connected in before the described ammeter power cutoff mechanism, described communication module (100) input is bought amount of money thresholding on dredit and is bought rate on dredit to the described electricity consumption processing module of buying on dredit, can buy electricity consumption on dredit to buying amount of money thresholding on dredit.
6, CPU card three phase electronic type pre-payment step electricity price electrical energy meter according to claim 2, it is characterized in that, described MCU control module also comprises a load control module, the output terminal of one input termination power measurement module (102) of described load control module, another input end is connected the customer charge thresholding of news modules (100) output; One output terminal control module taking alarm (106), the second output termination ammeter power cutoff mechanism, the 3rd output termination display control module, described load control module is by the number of times of customer charge thresholding control user power utilization overload.
7, CPU card three phase electronic type pre-payment step electricity price electrical energy meter according to claim 2, it is characterized in that, this electric energy meter comprises loam cake plastics lead sealing (1), loam cake lead sealing screw (2), loam cake (3), report to the police and indicate (4), pulse indication (5), toll bar (6), CPU card and CPU card slot (7), wheel shows button (8), loam cake lead sealing screw (9), the lead sealing (10) of the plumbous system of loam cake, connector socket (11), wiring end cap lead sealing screw (12), wiring end cap (13), button (14) is set, binding post gib screw (15), binding post (16), pulse test output (17), infrared communication interface (18), LCD (19), panel (20) and drain pan (21).
8, CPU card three phase electronic type pre-payment step electricity price electrical energy meter according to claim 7, it is characterized in that the display items of described LCD (19) comprises reveal codes (501), ladder electricity charge kind sign (502), unit (503), the indication of remaining sum bar rod (504), data presentation item (505), communications identification (506) and reverse electricity consumption sign (507).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200958947U CN201259703Y (en) | 2008-07-29 | 2008-07-29 | CPU card three phase electronic type pre-payment step electricity price electrical energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200958947U CN201259703Y (en) | 2008-07-29 | 2008-07-29 | CPU card three phase electronic type pre-payment step electricity price electrical energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201259703Y true CN201259703Y (en) | 2009-06-17 |
Family
ID=40773940
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200958947U Expired - Fee Related CN201259703Y (en) | 2008-07-29 | 2008-07-29 | CPU card three phase electronic type pre-payment step electricity price electrical energy meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201259703Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101339682B (en) * | 2008-07-29 | 2010-08-25 | 深圳市思达仪表有限公司 | CPU card three phase electronic type pre-payment step electricity price electrical energy meter |
| WO2017031701A1 (en) * | 2015-08-25 | 2017-03-02 | 深圳市思达仪表有限公司 | Single/three-phase electronic prepaid step tariff electric energy meter with cpu card |
-
2008
- 2008-07-29 CN CNU2008200958947U patent/CN201259703Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101339682B (en) * | 2008-07-29 | 2010-08-25 | 深圳市思达仪表有限公司 | CPU card three phase electronic type pre-payment step electricity price electrical energy meter |
| WO2017031701A1 (en) * | 2015-08-25 | 2017-03-02 | 深圳市思达仪表有限公司 | Single/three-phase electronic prepaid step tariff electric energy meter with cpu card |
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