CN201251814Y - Staircase prepaid electric energy meter - Google Patents
Staircase prepaid electric energy meter Download PDFInfo
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- CN201251814Y CN201251814Y CNU2008201335888U CN200820133588U CN201251814Y CN 201251814 Y CN201251814 Y CN 201251814Y CN U2008201335888 U CNU2008201335888 U CN U2008201335888U CN 200820133588 U CN200820133588 U CN 200820133588U CN 201251814 Y CN201251814 Y CN 201251814Y
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Abstract
The utility model discloses a staircase prepaid electric energy meter for solving the problem in the prior art that the staircase charging cannot be carried out. The staircase prepaid electric energy meter comprises a main control module as well as a real-time clock module, an E-SAM cryptographic key authentication module, a card protection module, a display module, an infrared/485/PLC communication module, a power on-off module, a memory module, a measurement module, a power supply module, and the like which are connected with the main control module, and a staircase electric price module is also arranged between the measurement module and the main control module. By adopting the electric energy meter, the prepaid electric energy meter can be added with functions of staircase electric price calculation and time-sharing electric price, thereby various demands of users can be better satisfied.
Description
Technical field
The present invention relates to a kind of electric energy meter, particularly a species stage prepayment meter.
Background technology
Card prepay charging management system is checked meter in order to solve owing to electricity consumer quantity causes greatly, fee collection arduousness and user's owing electricity charges phenomenon invent.Existing card prepay charging management system is to realize payment function (also having minority is to realize by non-contact card (radio-frequency card etc.)) by contact card (storage card, logic encryption card, CPU card) as transmission medium mostly.This mode reduced widely check meter, the intensity of fee collection.
Along with the energy demand in the whole world is more and more nervous, the focus that the requirement of energy-saving and emission-reduction has also just become various countries to pay close attention to, and also just received bigger concern as rationally using and dispatching of the energy-electric energy the most easily.Some large electricity consumers particularly, common charging way can not limit its power consumption preferably.In China, the National Development and Reform Commission has proposed the notion of ladder electricity price, consumes the electric energy of varying number that is:, and for different progression, the cost of being paid is differentiated.Based on this theory, become the market demand with the instrument of ladder electricity price.
The utility model content
For overcoming above-mentioned defective, the purpose of this utility model is to provide a kind of ladder prepayment meter that can measure electric energy with the ladder electricity price.
For achieving the above object, the utility model ladder prepayment meter, comprise the prepayment meter of forming by main control module and connected real-time clock module, E-SAM key authentication module, protection module, display module, infrared/the 485/PLC communication module, power on/off module, memory module, metering module and supply module, between metering module and main control module, also be provided with ladder electricity price module.
Particularly, described ladder electricity price module comprises:
The ladder electricity price is provided with module, in order to the initial electric weight that every grade of ladder is set and the electricity price of every grade of ladder, and this setting is stored in memory module;
Ladder electricity price computing module: in order to by the amount of money in the master control module judges table whether greater than set minimum amount, if greater than would send power supply instruction to control circuit, and read the flow information of metering module, and detect this electricity consumption place ladder, if power consumption is not less than set unit quantity of electricity, then sends instruction and deduct the consumption amount of money of place ladder and remaining sum is stored in the table to main control module; When the consumption electric weight reaches set unit quantity of electricity, then stop power supply, difference is stored in the table, remind the user to purchase by display module.
Particularly, also comprise a tou power price module, described tou power price module comprises:
Tou power price is provided with module, in order to will being arranged to a plurality of time periods every day, and electricity price in each time period is set, and above-mentioned setting is stored in memory module;
The tou power price computing module: in order to by the amount of money in the master control module judges table whether greater than set minimum amount, if greater than would send power supply instruction to control circuit, and read the flow information of metering module, and detect this electricity consumption place time period, if power consumption is not less than set unit quantity of electricity, then to main control module send instruction deduct the place in the time period the consumption amount of money and remaining sum is stored in the table; When the consumption electric weight reaches set unit quantity of electricity, then stop power supply, difference is stored in the table, remind the user to purchase by display module.
Particularly, infrared/485/PLC communication module is used to be provided with real-time clock, the timesharing parameter of table meter unit, and can carry out operations such as parameter modification, status data read, check meter by communication interface his-and-hers watches meter unit; E-SAM key authentication module is in order to stick into capable safety certification, metering and status data in the while storage list meter unit to CPU.
Adopt above-mentioned electric energy meter, can make prepayment meter increase the ladder electricity price and calculate and the tou power price computing function, thereby can better meet the different demand of various users.
Description of drawings
Fig. 1 is the structure principle chart of the utility model ladder prepayment meter.
Fig. 2 for the utility model ladder prepayment meter shown in Figure 1 be applied to the network prepayment electricity-selling system time theory diagram.
Embodiment
The utility model ladder prepayment meter, it is exactly the aggregate-value of electric energy meter storing electricity, and compare with predefined each electric weight ladder, use different electricity prices to settle accounts at different electric weight ladders, and, promptly can control the new electric energy meter type that electric weight uses, can guarantee electric fees charging again thereby form in conjunction with the function that can carry out arrearage tripping operation outage of pre-payment.
As shown in Figure 1, it comprises the prepayment meter of being made up of main control module and connected real-time clock module, E-SAM key authentication module, protection module, display module, infrared/the 485/PLC communication module, power on/off module, memory module, metering module and supply module, also is provided with ladder electricity price module between metering module and main control module.Wherein, ladder electricity price module comprises:
The ladder electricity price is provided with module, in order to the initial electric weight that every grade of ladder is set and the electricity price of every grade of ladder, and this setting is stored in memory module;
Ladder electricity price computing module: in order to by the amount of money in the master control module judges table whether greater than set minimum amount, if greater than would send power supply instruction to control circuit, and read the flow information of metering module, and detect this electricity consumption place ladder, if power consumption is not less than set unit quantity of electricity, then sends instruction and deduct the consumption amount of money of place ladder and remaining sum is stored in the table to main control module; When the consumption electric weight reaches set unit quantity of electricity, then stop power supply, difference is stored in the table, remind the user to purchase by display module.
Power consumption when controlling peak of power consumption and low power consumption also is provided with the tou power price module, and described tou power price module comprises:
Tou power price is provided with module, in order to will being arranged to a plurality of time periods (can set as required a plurality of, as 8) every day, and the electricity price in each time period is set, and above-mentioned setting is stored in memory module;
The tou power price computing module: in order to by the amount of money in the master control module judges table whether greater than set minimum amount, if greater than would send power supply instruction to control circuit, and read the flow information of metering module, and detect this electricity consumption place time period, if power consumption is not less than set unit quantity of electricity, then to main control module send instruction deduct the place in the time period the consumption amount of money and remaining sum is stored in the table; When the consumption electric weight reaches set unit quantity of electricity, then stop power supply, difference is stored in the table, remind the user to purchase by display module.
In prepayment meter, can only establish ladder electricity price module according to client's needs, two modules of ladder electricity price module and tou power price module also can be set.
Particularly, infrared/485/PLC communication module is used to be provided with real-time clock, the timesharing parameter of table meter unit, and can carry out operations such as parameter modification, status data read, check meter by communication interface his-and-hers watches meter unit; E-SAM key authentication module is in order to stick into capable safety certification, metering and status data in the while storage list meter unit to CPU.
Be example with ladder electricity price account form below, the utility model is further described.The electric weight of supposing 1 rank that are provided with is that the electric weight on 100,2 rank is that the electric weight on 200,3 rank is that the electric weight on 300,4 rank is 400; The electricity price on 1 rank is that 1.00 yuan, the electricity price on 2 rank are that 2.00 yuan, the electricity price on 3 rank are that 3.00 yuan, the electricity price on 4 rank are 4.00 yuan; The electric weight of (or each billing cycle) use that instrument can add up this month, power consumption is smaller or equal to 100 part, calculate according to 1 yuan/kW, power consumption calculates the electricity charge smaller or equal to 200 part according to 2 yuan/kW greater than 100, power consumption calculates the electricity charge smaller or equal to 300 parts according to 3 yuan/kW greater than 200, power consumption calculates the electricity charge greater than 300 part according to 4 yuan/kW, the summation of each corresponding electricity charge in rank be exactly this month should pay the electricity charge.As:
It is 123 that this month makes power consumption, then electricity charge total value: 100*1 unit+23*2 unit=146 yuan
It is 234 that this month makes power consumption, then electricity charge total value: 100*1 unit+100*2 unit+34*3 unit=402 yuan
It is 345 that this month makes power consumption, then electricity charge total value: 100*1 unit+100*2 unit+100*3 unit+45*4 unit=780 yuan
It is 345 that this month makes power consumption, then electricity charge total value: 100*1 unit+100*2 unit+100*3 unit+156*4 unit=1224 yuan
This is that the setting of brownout is given an example in the nervous area of electric energy, and electricity consumption is many more, and electricity price is high more.
The electric weight of supposing 1 rank that are provided with is that the electric weight on 100,2 rank is that the electric weight on 200,3 rank is that the electric weight on 300,4 rank is 400; The electricity price on 1 rank is that 4.00 yuan, the electricity price on 2 rank are that 3.00 yuan, the electricity price on 3 rank are that 2.00 yuan, the electricity price on 4 rank are 1.00 yuan; The electric weight of (or each billing cycle) use that instrument can add up this month, power consumption is smaller or equal to 100 part, calculate according to 4 yuan/kW, power consumption calculates the electricity charge smaller or equal to 200 part according to 3 yuan/kW greater than 100, power consumption calculates the electricity charge smaller or equal to 300 parts according to 2 yuan/kW greater than 200, power consumption calculates the electricity charge greater than 300 part according to 1 yuan/kW, the summation of each corresponding electricity charge in rank be exactly this month should pay the electricity charge.As:
It is 123 that this month makes power consumption, then electricity charge total value: 100*4 unit+23*3 unit=469 yuan
It is 234 that this month makes power consumption, then electricity charge total value: 100*4 unit+100*3 unit+34*2 unit=768 yuan
It is 345 that this month makes power consumption, then electricity charge total value: 100*4 unit+100*3 unit+100*2 unit+45*1 unit=945 yuan
It is 456 that this month makes power consumption, then electricity charge total value: 100*4 unit+100*3 unit+100*2 unit+156*1 unit=1056 yuan
This is in the loose area of electric energy, encourages the setting of electricity consumption to give an example, and electricity consumption is many more, and electricity price is low more.
During actual the use, the electricity price of electric weight ladder and each ladder can be set in the table by card, also can be provided with by communication modes.
The card that this instrument is used is the CPU card, and data security is high, and key authentication mechanism is arranged in the table, thereby can transmit the various parameters that are provided with by subscriber card.Be issued to each sale of electricity terminal the start-up time that the electric weight ladder that power department is revised preparation by the electricity-selling system network, the electricity price of each ladder and electricity price are carried out, when the user purchases electricity, information will be written in the card, after card inserts instrument, information will bring back in the table, and starts new electric weight ladder and new electricity price in the moment of regulation.
The communication system of this instrument is the power line carrier mode, The data encrypted transmission, and the effective property of data.Instrument is after receiving communication command, have only and just can be accepted and store by the data of internal key authentication, if and identical data are intercepted and captured to lay equal stress on and newly send over because communication id, number of times and temporal differences can not accepted once more, can not accepted by other instrument yet.ESAM third party authenticates, 3DES128 bit encryption decipherment algorithm and communication key uses, and the mode of wanting to decode key by intercepted data can't realize substantially.
Theory diagram when Fig. 2 is the utility model ladder prepayment meter composition network prepayment electricity-selling system.It comprises CPU card, table meter unit, concentrator unit, communication unit and main station unit at least; Wherein,
The CPU card is used for finishing and purchases electricity and purchase electric weight to showing to count to append in the unit;
Table meter unit is above-mentioned ladder prepayment meter, and this power consumption is uploaded to concentrator unit and receives the data and the order that pass under the concentrator unit with carrier system by line of electric force carries out corresponding action;
Concentrator unit in order to the electricity consumption data centralization with each table meter unit, its downstream, and is uploaded to main station unit and receives main station unit by communication unit and carry out corresponding action by data and order that communication unit passes down;
Communication unit intercoms with main station unit mutually in order to connect concentrator unit by public communication network;
Main station unit is in order to receive data that concentrator unit uploads and it is carried out statistical study and according to user power utilization amount situation with purchase and pass corresponding data and order under the electric weight situation.
Adopting said structure, to being to carry out communication by power line carrier the concentrator unit, is to connect with public telephone network etc. from table meter unit between from the concentrator unit to the main station unit.Install very easyly, without any need for unnecessary line, significantly reduced network and connected contact, thereby greatly reduced the contact failure rate that network line connects, greatly reduce operating cost.
Claims (4)
1, a species stage prepayment meter, comprise the prepayment meter of forming by main control module and connected real-time clock module, E-SAM key authentication module, protection module, display module, infrared/the 485/PLC communication module, power on/off module, memory module, metering module and supply module, it is characterized in that: between metering module and main control module, also be provided with ladder electricity price module.
2, ladder prepayment meter as claimed in claim 1 is characterized in that: described ladder electricity price module comprises:
The ladder electricity price is provided with module, in order to the initial electric weight that every grade of ladder is set and the electricity price of every grade of ladder, and this setting is stored in memory module;
Ladder electricity price computing module: in order to by the amount of money in the master control module judges table whether greater than set minimum amount, if greater than would send power supply instruction to control circuit, and read the information about power of metering module, and detect this electricity consumption place ladder, if power consumption is not less than set unit quantity of electricity, then sends instruction and deduct the consumption amount of money of place ladder and remaining sum is stored in the table to main control module; When the consumption electric weight reaches set unit quantity of electricity, then stop power supply, difference is stored in the table, remind the user to purchase by display module.
3, ladder prepayment meter as claimed in claim 1 or 2 is characterized in that: also comprise a tou power price module, described tou power price module comprises:
Tou power price is provided with module, in order to will being arranged to a plurality of time periods every day, and electricity price in each time period is set, and above-mentioned setting is stored in memory module;
The tou power price computing module: in order to by the amount of money in the master control module judges table whether greater than set minimum amount, if greater than would send power supply instruction to control circuit, and read the information about power of metering module, and detect this electricity consumption place time period, if power consumption is not less than set unit quantity of electricity, then to main control module send instruction deduct the place in the time period the consumption amount of money and remaining sum is stored in the table; When the consumption electric weight reaches set unit quantity of electricity, then stop power supply, difference is stored in the table, remind the user to purchase by display module.
4, ladder prepayment meter as claimed in claim 3, it is characterized in that: infrared/485/PLC communication module is used to be provided with real-time clock, the timesharing parameter of table meter unit, and can carry out operations such as parameter modification, status data read, check meter by communication interface his-and-hers watches meter unit; E-SAM key authentication module is in order to stick into capable safety certification, metering and status data in the while storage list meter unit to CPU.
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| CNU2008201335888U CN201251814Y (en) | 2008-09-12 | 2008-09-12 | Staircase prepaid electric energy meter |
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| CNU2008201335888U CN201251814Y (en) | 2008-09-12 | 2008-09-12 | Staircase prepaid electric energy meter |
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