CN202816022U - Prepaid electric energy meter based on intelligent information carrier - Google Patents
Prepaid electric energy meter based on intelligent information carrier Download PDFInfo
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- CN202816022U CN202816022U CN 201220403052 CN201220403052U CN202816022U CN 202816022 U CN202816022 U CN 202816022U CN 201220403052 CN201220403052 CN 201220403052 CN 201220403052 U CN201220403052 U CN 201220403052U CN 202816022 U CN202816022 U CN 202816022U
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- information carrier
- microprocessor
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- electric energy
- smart information
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Abstract
The utility model discloses a prepaid electric energy meter based on an intelligent information carrier. The prepaid electric energy meter comprises a microprocessor, an electronic type base meter, a pulse shaping circuit, a displayer, a meter internal data memory, the intelligent information carrier and a negative charge control relay. An output end of the electronic type base meter is connected with an input end of the pulse shaping circuit. An output end of the pulse shaping circuit is connected with an electric quantity signal input end of the microprocessor. An input end of the displayer is connected with a display signal output end of the microprocessor. The meter internal data memory is connected with a memory signal end of the microprocessor. A data transmitting end of the intelligent information carrier is connected with a prepaid information transmitting end of the microprocessor. An input end of the negative charge control relay is connected with a power supply control signal output end of the microprocessor. By means of the intelligent information carrier, the prepaid electric energy meter can read prepaid information of a user on a magnetic card, and carries out electronic metering to electrical energy. The on-off of the prepaid electric energy meter can be controlled through the negative charge control relay, and the prepaid electric energy meter has the advantages of being accurate in metering, convenient to manage, and strong in confidentiality.
Description
Technical field
The utility model relates to a kind of prepayment meter, relates in particular to a kind of prepayment meter based on smart information carrier.
Background technology
Along with the significantly increase of per capita household electricity consumption, now substantially round Realization Every household has an ammeter, traditional mechanical power energy meter measuring accuracy is not high enough, and can't realize the electronization pre-payment management, be eliminated gradually.The electric energy meter of electronic type is accurate measurement not only, and can realize pre-payment management, so become the main flow electric energy meter.Existing electronic prepayment electric power table, its user prepayment information are that magnetic card is as carrier, by magnetic card reader reading information and management with magnetic card.The Card Reader chip of existing electronic prepayment electric power table only has the function of direct reading information, can not carry out security configuration and identification to card information, so security performance is not high enough.
The utility model content
The purpose of this utility model provides a kind of prepayment meter based on smart information carrier with function of keeping secret with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The utility model comprises microprocessor, electronic type base table, pulse shaping circuit, display and Biao Nei data-carrier store, the output terminal of described electronic type base table is connected with the input end of described pulse shaping circuit, the output terminal of described pulse shaping circuit is connected with the electric quantity signal input end of described microprocessor, the input end of described display is connected with the display output terminal of described microprocessor, and data-carrier store is connected with the storage signal end of described microprocessor in the described table; It is characterized in that: also comprise smart information carrier and negative charge pilot relay, the data transmission terminal of described smart information carrier is connected with the prepayment information transmission ends of described microprocessor, and the input end of described negative charge pilot relay is connected with the power supplying control signal output terminal of described microprocessor.
Particularly, described smart information carrier is the DS1961S chip.
More specifically, described smart information carrier comprises parasite power, function power supply, function control unit, CRC16 generator, four page data storeies, 64 bit register pages or leaves, 64 photoetching RDM, 512 SHA engines, 64 working storages and 64 crypto key memorys.
The beneficial effects of the utility model are:
The utility model reads user prepayment information on the magnetic card by smart information carrier, and electric energy is carried out electronic measurement, and by negative charge pilot relay gauge tap, have accurate measurement, be convenient to manage, the advantage of strong security.
Description of drawings
Fig. 1 is the circuit block diagram of prepayment meter described in the utility model;
Fig. 2 is the internal circuit block diagram of smart information carrier described in the utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1, the utility model comprises data-carrier store, smart information carrier and negative charge pilot relay in microprocessor, electronic type base table, pulse shaping circuit, display, the table, the output terminal of electronic type base table is connected with the input end of pulse shaping circuit, the output terminal of pulse shaping circuit is connected with the electric quantity signal input end of microprocessor, the input end of display is connected with the display output terminal of microprocessor, and data-carrier store is connected with the storage signal end of microprocessor in the table; The data transmission terminal of smart information carrier is connected with the prepayment information transmission ends of microprocessor, and the input end of negative charge pilot relay is connected with the power supplying control signal output terminal of microprocessor.
As shown in Figure 2, smart information carrier comprises parasite power, function power supply, function control unit, CRC16 generator, four page data storeies, 64 bit register pages or leaves, 64 photoetching RDM, 512 SHA engines, 64 working storages and 64 crypto key memorys.
In the practical application, smart information carrier is the DS1961S chip.
Claims (3)
1. prepayment meter based on smart information carrier, comprise microprocessor, electronic type base table, pulse shaping circuit, display and Biao Nei data-carrier store, the output terminal of described electronic type base table is connected with the input end of described pulse shaping circuit, the output terminal of described pulse shaping circuit is connected with the electric quantity signal input end of described microprocessor, the input end of described display is connected with the display output terminal of described microprocessor, and data-carrier store is connected with the storage signal end of described microprocessor in the described table; It is characterized in that: also comprise smart information carrier and negative charge pilot relay, the data transmission terminal of described smart information carrier is connected with the prepayment information transmission ends of described microprocessor, and the input end of described negative charge pilot relay is connected with the power supplying control signal output terminal of described microprocessor.
2. the prepayment meter based on smart information carrier according to claim 1, it is characterized in that: described smart information carrier is the DS1961S chip.
3. the prepayment meter based on smart information carrier according to claim 1 and 2, it is characterized in that: described smart information carrier comprises parasite power, function power supply, function control unit, CRC16 generator, four page data storeies, 64 bit register pages or leaves, 64 photoetching RDM, 512 SHA engines, 64 working storages and 64 crypto key memorys.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220403052 CN202816022U (en) | 2012-08-15 | 2012-08-15 | Prepaid electric energy meter based on intelligent information carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220403052 CN202816022U (en) | 2012-08-15 | 2012-08-15 | Prepaid electric energy meter based on intelligent information carrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202816022U true CN202816022U (en) | 2013-03-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220403052 Expired - Fee Related CN202816022U (en) | 2012-08-15 | 2012-08-15 | Prepaid electric energy meter based on intelligent information carrier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202816022U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103593917A (en) * | 2012-08-15 | 2014-02-19 | 成都昊地科技有限责任公司 | Pre-payment electric energy meter based on intelligent information carrier |
-
2012
- 2012-08-15 CN CN 201220403052 patent/CN202816022U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103593917A (en) * | 2012-08-15 | 2014-02-19 | 成都昊地科技有限责任公司 | Pre-payment electric energy meter based on intelligent information carrier |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20130815 |