CN204405733U - Electronic multi-user multi intelligent electric meter - Google Patents
Electronic multi-user multi intelligent electric meter Download PDFInfo
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- CN204405733U CN204405733U CN201520072912.XU CN201520072912U CN204405733U CN 204405733 U CN204405733 U CN 204405733U CN 201520072912 U CN201520072912 U CN 201520072912U CN 204405733 U CN204405733 U CN 204405733U
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Abstract
The utility model provides a kind of electronic multi-user multi intelligent electric meter, belong to electric energy meter field, comprise end of incoming cables, leading-out terminal, bus, feeder line and relay, be provided with control circuit, control circuit comprises single-chip microcomputer, computation chip and logic chip, and three-phase end of incoming cables is connected respectively to the side of different buses, and feeder line one end is connected on bus, the other end of feeder line is connected to leading-out terminal by relay, and computation chip is connected to three-phase end of incoming cables by voltage transformer (VT); Be provided with current transformer, current transformer is enclosed within feeder line, and the output terminal of current transformer is connected to computation chip by logic chip, and computation chip is connected on single-chip microcomputer; Be provided with Control chip, the control end of relay is connected on single-chip microcomputer by Control chip, takes up room little, checks conveniently.
Description
Technical field
The utility model provides a kind of electronic multi-user multi intelligent electric meter, belongs to electric energy meter field.
Background technology
China is electric power big country, from urban and urual areas of whole country's electric network reconstruction in 1998 till now, national grid reaches international most advanced level, the electricity metering of electric power demand side (user) also has reform and opening-up with the constant mechanical electricity meter of previous decades, progressively develops into electronic electricity meter, pre-paying kilowatt-hour meter, multifunction electric meter and intelligent electric meter.And along with the change of resident's living conditions, house is developed to high level by multilayer, the installation of Demand-side ammeter is also installed to by dispersion the future development installed concentratedly, and especially tens family ammeters are installed concentratedly in a table case.Or a unit concentrates in a table case.The volume ratio so not only taking table case is comparatively large, and ammeter topmost should not check electricity consumption quantity, brings very big inconvenience to user.
Utility model content
The utility model object is to provide a kind of electronic multi-user multi intelligent electric meter, takes up room little, checks conveniently.
Electronic multi-user multi intelligent electric meter described in the utility model, comprise end of incoming cables, leading-out terminal, bus, feeder line and relay, be provided with control circuit, control circuit comprises single-chip microcomputer, computation chip and logic chip, three-phase end of incoming cables is connected respectively to the side of different buses, feeder line one end is connected on bus, and the other end of feeder line is connected to leading-out terminal by relay, and computation chip is connected to three-phase end of incoming cables by voltage transformer (VT); Be provided with current transformer, current transformer is enclosed within feeder line, the output terminal of current transformer is connected to computation chip by logic chip, the communication pin of computation chip is connected to the communication pin of single-chip microcomputer, be provided with Control chip, the control end of relay is connected to single-chip microcomputer by Control chip.
Described electronic multi-user multi intelligent electric meter, single-chip microcomputer and computation chip all arrange crystal oscillator, single-chip microcomputer arranges clock chip, to obtain temporal information, in use, three-phase end of incoming cables is connected to the three-phase inlet wire circuit of a building or a unit, each connecting terminals of leading-out terminal receives each user, after each user starts electricity consumption, the current transformer be enclosed within feeder line will record electric current, and the electric current after reducing in proportion is transported to computation chip, electric current can be converted to numerical quantities by computation chip, simultaneously, magnitude of voltage after reducing in proportion also can be transported to computation chip by the voltage transformer (VT) being connected to end of incoming cables, computation chip calculates real-time power after real-time voltage and current is converted to numerical quantities, be transferred to single-chip microcomputer thus the electricity of calculating user use, single-chip microcomputer is other is provided with general storage device and RS485 communication module interface, the electricity recorded can be stored by storage device by single-chip microcomputer, also by communication module, information can be uploaded to upper management platform, relay is caused to disconnect if user's electricity is used up, only need to carry out pay the fees (or passing through radio-frequency card) to upper management platform place, such managerial personnel just can use upper management platform to be connected to RS485 communication module (or passing through radio-frequency card) by communication line, relative users is supplemented with money, microprocessor detect is to after having dump energy, will the closing of contact of pilot relay, so just achieve the metering of multichannel, measure the current value of multichannel feeder line by measuring chip simultaneously, and send to single-chip microcomputer to carry out the calculating of electric energy current value and real-time voltage value in real time, and storage device can store multiple users power information of 10 years, the power consumption of user can be reminded by display screen by single-chip microcomputer in real time, when dump energy is zero, single-chip microcomputer can send electric signal to Control chip, the contact of Control chip controls relay disconnects, thus to the function of user's power-off when realizing user balance deficiency, control circuit is provided with display interface, and display interface is connected to the display output terminal of single-chip microcomputer, when user watches, can read respective continuous data in real time, achieve multiple-in-one, both take up room little, and check very convenient.
Described electronic multi-user multi intelligent electric meter, is provided with brushing card device, and brushing card device is also connected on RS485 interface.Brushing card device can read the data of electric energy card, by brushing card device, the charging information of electric energy card can be supplemented with money each user, thus change the dump energy of user, avoid maintainer's unified maintenance after user buys electricity, only need user to swipe the card to brushing card device place and charge.
Described electronic multi-user multi intelligent electric meter, is provided with clock chip, and the output terminal of clock chip is connected to single-chip microcomputer.Single-chip microcomputer can be made to have time writing function, all give the time by every bar storing information and command information, extremely be conducive to staff and carry out judgement when investigating fault and user buys the inquiry of information about power.
The utility model compared with prior art outstanding feature is:
Described electronic multi-user multi intelligent electric meter, single-chip microcomputer and computation chip all arrange crystal oscillator, single-chip microcomputer arranges clock chip, to obtain temporal information, in use, three-phase end of incoming cables is connected to the three-phase inlet wire circuit of a building or a unit, each connecting terminals of leading-out terminal receives each user, after each user starts electricity consumption, the current transformer be enclosed within feeder line will record electric current, and the electric current after reducing in proportion is transported to computation chip, electric current can be converted to numerical quantities by computation chip, simultaneously, magnitude of voltage after reducing in proportion also can be transported to computation chip by the voltage transformer (VT) being connected to end of incoming cables, computation chip calculates real-time power after real-time voltage and current is converted to numerical quantities, be transferred to single-chip microcomputer thus the electricity of calculating user use, single-chip microcomputer is other is provided with general storage device and RS485 communication module interface, the electricity recorded can be stored by storage device by single-chip microcomputer, also by communication module, information can be uploaded to upper management platform (or passing through radio-frequency card), relay is caused to be disconnected by feeder line if user's electricity is used up, only need to pay the fees to upper management platform place, such managerial personnel just can use upper management platform to be connected to RS485 communication module (or passing through radio-frequency card) by communication line, relative users is supplemented with money, microprocessor detect is to after having dump energy, will the closing of contact of pilot relay, so just achieve the metering of multichannel, thus to the function of user's power-off when realizing user balance deficiency, control circuit is provided with display interface, and display interface is connected to the display output terminal of single-chip microcomputer, when user watches, can read respective continuous data in real time, achieve multiple-in-one, both take up room little, and check very convenient.
Described brushing card device, brushing card device can read the data of electric energy card, by brushing card device, the charging information of electric energy card can be supplemented with money each user, thus change the dump energy of user, avoid maintainer's unified maintenance after user buys electricity, only need user to swipe the card to brushing card device place and charge.
Described clock chip, can make single-chip microcomputer have time writing function, all gives the time by every bar storing information and command information, is extremely conducive to staff and carries out judgement when investigating fault and user buys the inquiry of information about power.
Accompanying drawing explanation
Fig. 1 is the utility model functional-block diagram;
Fig. 2 is the utility model electrical schematic diagram;
Fig. 3 is control circuit single-chip microcomputer wiring diagram;
Fig. 4 is control circuit computation chip wiring diagram;
Fig. 5 is control circuit logic chip wiring diagram.
In figure: 1, end of incoming cables; 2, leading-out terminal; 3, bus; 4, feeder line; 5, relay; 6, control circuit; 7, single-chip microcomputer; 8, computation chip; 9, logic chip; 10, current transformer; 11, voltage transformer (VT); 12, Control chip; 13, RS485 communicating circuit; 14, clock chip; 15, display interface; 16, reservoir.
Embodiment
Below in conjunction with the utility model, the utility model embodiment is described further:
Embodiment 1: as Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4 and Fig. 5, electronic multi-user multi intelligent electric meter described in the utility model, comprises end of incoming cables 1, leading-out terminal 2, bus 3, feeder line 4 and relay 5, be provided with control circuit 6, and control circuit 6 comprises single-chip microcomputer 7, computation chip 8 and logic chip 9, three-phase end of incoming cables 1 is connected respectively to three buses 3, every bar mother 3 connects 8 feeder lines 4, amount to 24 feeder lines 4, article 24, the other end of feeder line 4 is connected to leading-out terminal 2 by relay 5, be provided with three voltage transformer (VT) 11, the input end of three voltage transformer (VT) 11 is parallel to three-phase end of incoming cables 1 respectively, the output terminal of three voltage transformer (VT) 11 is connected to computation chip 8, computation chip 8 adopts ATT7028K computation chip, and the output terminal of three voltage transformer (VT) 11 is connected respectively to the V2P of computation chip 8, V2N, V4P, V4N, V6P and V6N, therefore computation chip 8 can gather the real-time voltage of end of incoming cables 1 by three voltage transformer (VT) 11, be provided with 24 current transformers 10, 24 current transformers 10 are all enclosed within feeder line 4, logic chip 9 is 4051 logic chips, and the output terminal of 24 current transformers 10 is connected to the X0 of 3 logic chips 9, X1, X2, X3, X4, X5, X6 and X7 pin, the X-tube pin of three logic chips 9 is connected respectively to the V1P of computation chip 9, V3P, V5P, the zero line being connected to three groups of current transformers 10 of 3 logic chips 9 is all parallel to the V1N of computation chip 8, V3N, V5N pin, make computation chip 8 measure the real-time current of each user recorded by current transformer 10 in order by logic chip 9, single-chip microcomputer 7 adopts STC12C2052 type single-chip microcomputer, the DOUT of computation chip 8, DIN, the P2.5 of SCLK and CS tetra-pins and single-chip microcomputer 7, P2.6, P2.7 with P0.1 pin is connected, to connect with single-chip microcomputer 7 with this and communicate, single-chip microcomputer 7 real-time voltage recorded and real-time current is sent to carry out the calculating of instantaneous power and electric energy, single-chip microcomputer 7 can according to the dump energy data of each user of loss electric energy real-time update calculated, the calculation procedure that single-chip microcomputer 7 runs is existing energy calculate program, the P2.0 of single-chip microcomputer 7, P2.1, P2.2, P2.3 and P2.4 pin is connected to the A of logic chip 9, B, C and INH pin, issues orders to logic chip 9 with this, makes X0, X1, X2, X3, X4, X5, these eight order of the pins of X6 and X7 and circulation with the conducting of X-tube pin, the current value of each current transformer 10 of computation chip 8 proceeding measurement is realized with this, be provided with Control chip 12, single-chip microcomputer 7 is connected to Control chip 12, Control chip 12 is connected to 24 relays 5, when user's electricity residue is not enough, single-chip microcomputer 7 can assign ON-and OFF-command to Control chip 12, the power supply of Control chip 12 meeting pilot relay 5 disconnect user, single-chip microcomputer 7 is provided with general display translation interface, P1.3 and the P1.4 pin of single-chip microcomputer 7 is connected to display interface, be provided with general RS485 communicating circuit 13, RS485 communicating circuit 13 output terminal is connected to RS485 communication interface, the input end of RS485 communicating circuit 13 is connected to P3.0 and the P3.1 pin of single-chip microcomputer 7, so that single-chip microcomputer 7 and host computer carry out communication, be provided with universal timepiece chip 14, clock chip 14 is connected to P0.2 and the P0.3 pin of single-chip microcomputer 7, single-chip microcomputer 7 is made to obtain clock information, thus make each order assign and record and can be endowed the time, be provided with reservoir 16, FM24C16 reservoir selected by reservoir 16, the WP of reservoir 16, SCL and SDA pin is connected to the P0.4 of single-chip microcomputer 7, P0.3 and P0.2 pin, with the dump energy information of stored user, and the operational order information of single-chip microcomputer 7.
Embodiment 2: on the architecture basics described in embodiment 1, be provided with brushing card device, brushing card device is connected to control circuit 6, because control circuit 6 is provided with RS485 communicating circuit 13 and interface, so brushing card device is docked with control circuit 6 by RS485 interface, thus make single-chip microcomputer can carry out the mutual of information with brushing card device.
Claims (3)
1. an electronic multi-user multi intelligent electric meter, comprise end of incoming cables (1), leading-out terminal (2), bus (3), feeder line (4) and relay (5), it is characterized in that: be provided with control circuit (6), control circuit (6) comprises single-chip microcomputer (7), computation chip (8) and logic chip (9), three-phase end of incoming cables (1) is connected respectively to the side of different buses (3), feeder line (4) one end is connected on bus (3), the other end of feeder line (4) is connected to leading-out terminal (2) by relay (5), computation chip (8) is connected to three-phase end of incoming cables (1) by voltage transformer (VT) (11), be provided with current transformer (10), current transformer (10) is enclosed within feeder line (4), the output terminal of current transformer (10) is connected to computation chip (8) by logic chip (9), the communication pin of computation chip (8) is connected to the communication pin of single-chip microcomputer (7), be provided with Control chip (12), the control end of relay (5) is connected to single-chip microcomputer (7) by Control chip (12).
2. electronic multi-user multi intelligent electric meter according to claim 1, is characterized in that, be provided with brushing card device, and brushing card device is connected to control circuit (6).
3. electronic multi-user multi intelligent electric meter according to claim 1, is characterized in that, is provided with clock chip (14), and the output terminal of clock chip (14) is connected to single-chip microcomputer (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520072912.XU CN204405733U (en) | 2015-02-02 | 2015-02-02 | Electronic multi-user multi intelligent electric meter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520072912.XU CN204405733U (en) | 2015-02-02 | 2015-02-02 | Electronic multi-user multi intelligent electric meter |
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| CN204405733U true CN204405733U (en) | 2015-06-17 |
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| CN201520072912.XU Active CN204405733U (en) | 2015-02-02 | 2015-02-02 | Electronic multi-user multi intelligent electric meter |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105866534A (en) * | 2016-05-24 | 2016-08-17 | 南宁市茂百科技有限公司 | Multi-user intelligent electric meter |
| CN107167654A (en) * | 2017-05-19 | 2017-09-15 | 山东大学 | Suitable for the intelligent electric meter terminal and management of power use method of multi-user |
| CN110095640A (en) * | 2019-05-27 | 2019-08-06 | 宁波三星医疗电气股份有限公司 | A kind of electric energy meter suitable for multiple metering |
| CN113922241A (en) * | 2021-10-29 | 2022-01-11 | 国网河南省电力公司濮阳供电公司 | Integrated modular multi-family metering ammeter and working method thereof |
-
2015
- 2015-02-02 CN CN201520072912.XU patent/CN204405733U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105866534A (en) * | 2016-05-24 | 2016-08-17 | 南宁市茂百科技有限公司 | Multi-user intelligent electric meter |
| CN107167654A (en) * | 2017-05-19 | 2017-09-15 | 山东大学 | Suitable for the intelligent electric meter terminal and management of power use method of multi-user |
| CN110095640A (en) * | 2019-05-27 | 2019-08-06 | 宁波三星医疗电气股份有限公司 | A kind of electric energy meter suitable for multiple metering |
| CN113922241A (en) * | 2021-10-29 | 2022-01-11 | 国网河南省电力公司濮阳供电公司 | Integrated modular multi-family metering ammeter and working method thereof |
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