CN201654126U - Network prepayment single-phase electric energy meter with malignant load control - Google Patents
Network prepayment single-phase electric energy meter with malignant load control Download PDFInfo
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- CN201654126U CN201654126U CN200920256285XU CN200920256285U CN201654126U CN 201654126 U CN201654126 U CN 201654126U CN 200920256285X U CN200920256285X U CN 200920256285XU CN 200920256285 U CN200920256285 U CN 200920256285U CN 201654126 U CN201654126 U CN 201654126U
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- 230000003211 malignant effect Effects 0.000 title abstract 2
- 230000006854 communication Effects 0.000 claims abstract description 13
- 238000004891 communication Methods 0.000 claims abstract description 13
- 238000001514 detection method Methods 0.000 claims description 19
- 230000000505 pernicious effect Effects 0.000 claims description 9
- 238000012795 verification Methods 0.000 claims description 8
- 230000003534 oscillatory effect Effects 0.000 claims description 7
- 239000004973 liquid crystal related substance Substances 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 4
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- 230000003993 interaction Effects 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 6
- 230000002452 interceptive effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000007175 bidirectional communication Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
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- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 239000000463 material Substances 0.000 description 1
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Abstract
The utility model relates to a network prepayment single-phase electric energy meter with malignant load control, wherein a relay is connected with a microcomputer controller; an encryption chip encrypts and decrypts the network transmission data, and then transmits the network transmission data to the microcomputer controller for processing; the microcomputer and a reset and alarm circuit adopt a single-phase electric energy metering chip; when the electric energy meter is defaulted, a triode 8050 and a buzzer output alarm signals; a flash memory chip is connected with a microcomputer controller port; an RS 485 communication circuit is connected with the microcomputer controller in a serial communication manner; an external oscillating circuit is connected with the microcomputer controller so as to provide a reference clock for the microcomputer controller; a debugging circuit is connected with a microcomputer controller output port; external equipment is used for carrying out downloading program, programming and debugging on the microcomputer controller; and an infrared driving circuit is connected with the microcomputer controller in a serial communication manner. The prepayment single-phase electric energy meter has functions of informatization, automation and interaction management thereof, thus achieving the function that a user can realize network prepayment for the electric meter without going out of a door.
Description
Technical field:
The utility model belongs to a kind of electric energy meter, relates in particular to a kind of pernicious load Control Network pre-payment single-phase electric energy meter of being with.
Background technology:
The current main-stream single-phase electric energy meter mainly is divided into standard machinery rotating disc type electric energy meter and IC-card formula prepayment meter, standard machinery rotating disc type electric energy meter major function is: during user power utilization, electric energy meter writes down of that month power consumption, during the end of the month by power supply administration's record of checking meter, notify the user to pay the fees then to power supply administration, be the charge mode of " paying in power supply earlier, back ", its drawback is: as the untimely electricity payment of user, easily cause not paying of the electricity charge to pay with stagnant, power supply unit is charged voluntarily, easily cause work loaded down with trivial details, waste a large amount of human and material resources, increase human cost; IC-card formula prepayment meter major function is: need purchase electric weight in advance during user power utilization, electric weight counts IC-card, during electricity consumption IC-card is inserted ammeter, IC-card transmits data with the form of pulse, single-chip microcomputer shows electric weight through after the circuit analysis in display circuit, in time deduct power consumption during electricity consumption from now on, its drawback is: the user need arrive power supply administration as the purchase electric weight and buy voluntarily, can not utilize online network to realize pre paid functionality, and when the user need stop power supply because of arrearage, can not be with instructing the Long-distance Control automatic circuit break function.
Standard machinery rotating disc type electric energy meter and IC-card formula prepayment meter mainly are metering electric energy, prepayment electric expense function at present, but along with today of internet high speed development, need realize online pre paid functionality electric energy meter by internet platform, to realize electric energy meter informationization, robotization and interactive management, realize that the user does not go out the door and just can realize the Network electric meter pre paid functionality.
Summary of the invention:
The utility model is at the deficiencies in the prior art, provide and be based upon on the basis integrated, the high-speed bidirectional communication network, by loading system digital device and upgrading electrical network network management system, the efficient operation function of optimization of the quality of power supply, electric energy management and the electric energy that satisfy the 21 century user's request is provided, realizes the informationization, robotization of electric energy meter and interactive be with pernicious load Control Network pre-payment single-phase electric energy meter.
For realizing the above object, the technical solution adopted in the utility model is:
Be with pernicious load Control Network pre-payment single-phase electric energy meter by voltage and current detection circuit, relay, verification port, pilot lamp, encryption chip, key circuit, the cell voltage power-fail detection circuit, power-fail detection circuit, power circuit and real time clock circuit, microcomputer controller, reset and warning circuit flash chip, RS485 telecommunication circuit, outside oscillatory circuit, liquid crystal display, debug circuit, infrared driver circuit is formed; Wherein voltage and current detection circuit is transferred to microcomputer controller with filtering after-current signal, relay links to each other with microcomputer controller, export control, the verification port links to each other with microcomputer controller, the test input and the output of signal, pilot lamp links to each other with microcomputer controller, be used for showing various status signals, encryption chip is transferred to microcomputer controller to transmitted data on network and handles after encrypting and decrypting is handled, key circuit links to each other with microcomputer controller, original setting recovers to dispatch from the factory, cell voltage power-fail detection circuit and power-fail detection circuit are transferred to the microcomputer controller port to 3.6V cell voltage and 220V voltage respectively behind electric resistance partial pressure, power circuit is given each circuit for stabilized power source behind rectifying and voltage-stabilizing, real time clock circuit adopts the RX8025 clock chip of calibration to provide real-time clock information for ammeter, microcomputer controller, reset and warning circuit employing single-phase electric energy computation chip, when the ammeter arrearage, triode 8050 and hummer output alarm signal, flash chip links to each other with the microcomputer controller port, be used for storing all kinds of parameters of ammeter, the RS485 telecommunication circuit is connected with the microcomputer controller serial communication, can realize the electric weight forward purchasing by the network platform, ammeter data reads in real time, open/turn-off the outlet function of supplying power with the instruction Long-distance Control, outside oscillatory circuit links to each other with microcomputer controller, for microcomputer controller provides reference clock, liquid crystal display is used to show the various parameters of electric energy meter, debug circuit links to each other with the microcomputer controller output port, by external unit microcomputer controller is downloaded, programming and debugging, infrared driver circuit and microcomputer controller serial communication can be carried out this locality with infrared palm machine by the infrared communication interface and purchase.
Described microcomputer controller adopts ATT7025 single-phase electric energy computation chip.
Described relay is made up of two magnetic latching relays.
Described RS485 telecommunication circuit OP3, OP4 have isolated two-way signal of communication, and U8 has adopted technical grade 65LBC3082 chip, and use discharge tube, TVS pipe and thermistor to realize multistage lightning protection measure and the superpower limited amplitude protection of interface.
The utlity model has following advantage: (1) can realize that by the RS485 telecommunication circuit electric weight forward purchasing, ammeter real time data read, open/turn-off the outlet power supply with the instruction Long-distance Control; (2) electric energy meter provides infrared interface, provides palm machine with system, and palm facility have infrared interface, can carry out this locality to each ammeter and purchase the electric work energy; (3) warning and power down function automatically during no dump energy in electricity consumption behind the post-pay paystation, the table; (4) possess the current-limiting protection function, ammeter cuts off the power supply automatically when customer charge surpasses the Power Limitation value; (5) possess the safety certification encryption measures by encryption chip and guarantee that the user uses the high security of ammeter; (6) agreement overdraw function, the anti-electric weight function of hoarding.Electric energy meter integral body is based upon on the basis integrated, the high-speed bidirectional communication network, realizes informationization, robotization and the interactive management of electric energy meter, makes the user not go out the door and just can realize the Network electric meter pre paid functionality, satisfies the quality of power supply of 21 century user's request.
Description of drawings:
Fig. 1 is the utility model schematic diagram;
Fig. 2 is the utility model circuit diagram;
Embodiment:
As shown in Figure 1 and Figure 2, be with pernicious load Control Network pre-payment single-phase electric energy meter by voltage and current detection circuit 1, relay 2, verification port 3, pilot lamp 4, encryption chip 5, key circuit 6, cell voltage power-fail detection circuit 7, power-fail detection circuit 8, power circuit and real time clock circuit 9, reset and warning circuit 10 flash chip 11 at microcomputer controller, RS485 telecommunication circuit 12, outside oscillatory circuit 13, liquid crystal display 14, debug circuit 15, infrared driver circuit 16 is formed.The P5 interface is introduced the voltage and current signal of divertor in the voltage and current detection circuit 1, behind the filter filtering that R8, R9, C1, C2 form, gives microcomputer controller current signal; After passing through R35, R36, R37 step-down simultaneously, be added on the voltage divider of forming by R1～R7, pass through the filtering of R12, R13, C3, C4 again after, give microcomputer controller voltage signal.Relay 2 control output is made up of two magnetic latching relays, and when in the ammeter during insufficient in amount, microcomputer controller can send instruction, the output disconnection, stops to export electric energy.2 ports that verification port 3 uses when being the verification ammeter, microcomputer controller is exporting after OP1 isolates through signal Processing active energy later, and reactive energy is output after OP2 isolates, the input of the signal of testing and output.3 status indicator lamps are arranged in the pilot lamp 4, and microcomputer controller is indicated the arrearage signal with LED3 after treatment; Come the indicating relay state with LED4; Come the designation data communications status with LED5.Data transfer in the network is given microcomputer controller, and microcomputer controller is issued encryption chip 5 to data, after encryption or decryption processing, is only the manageable data of microcomputer controller.Key circuit 6 has two buttons, and when K2 pressed, microcomputer controller just reverted to the original setting of dispatching from the factory to all parameters; When K3 pressed, microcomputer controller allowed the ammeter verification.Behind 3.6V battery process 3.9M and the 3.3M electric resistance partial pressure, be added to the backward end of comparer TL082, in the voltage power-fail detection circuit 7 as reference voltage; The component voltage Vcc of power supply is added to the end in the same way of comparer, when cell voltage falls, after being lower than 3.15V, signal will be added on the microcomputer controller port, after JVCC signal process R38 in the circuit, the R39 dividing potential drop, give microcomputer controller as the down Monitor Unit signal, simultaneously when power supply electrifying, the JVCC signal is reverse through Q7, gives microcomputer controller as power on signal.After JVCC signal process R38 in the power-fail detection circuit 8, the R39 dividing potential drop, give microcomputer controller as the down Monitor Unit signal, when power supply electrifying, the JVCC signal is reverse through Q7, gives microcomputer controller as power on signal simultaneously.After 220V power supply process PTC thermistor and the protection of RV1 voltage dependent resistor (VDR), be added to the elementary of transformer T1 in power circuit and the real time clock circuit 9; Secondary have 2 groups of taps, one group behind D1, C37, C21, U9, C40, C23, supply with RS485 telecommunication circuit 12 and use; Another group tap is behind D2, D3, D4, D5, C38, C22 rectifying and voltage-stabilizing, voltage is+12V, supplying with BL8023 magnetic latching relay 2 and power sense circuit uses, arrive 3.6V through the U10 voltage stabilizing simultaneously, supply with remaining circuits such as clock circuit, battery voltage detection circuit, microcomputer control circuit and use, provide real-time clock information for ammeter through the RX8025 clock chip of calibrating.Microcomputer controller, reset and warning circuit 10 is ATT7025 low-power consumption high-performance single-phase electric energy computation chip, chip integration becomes single-phase function of measuring, functional processor, lcd driver, functions such as real-time clock, MAX809R provides reset signal for ATT7025, when the ammeter arrearage, triode 8050 and hummer output alarm signal.Flash chip 11 has adopted the AT24C64 of atmel corp, is used for storing all kinds of parameters of ammeter.OP3, OP4 have isolated two-way signal of communication in the RS485 telecommunication circuit 12; U8 has adopted technical grade 65LBC3082 chip; and use discharge tube, TVS pipe and thermistor to realize multistage lightning protection measure and the superpower limited amplitude protection of interface, even going into also, the misconnection of 380VAC voltage can not damage this interface.Outside oscillatory circuit 13 is the outside oscillatory circuit of ATT7025 chip, and X1 is the oscillator of microcomputer controller real-time clock; X2 is the king oscillator of microcomputer controller; 74LS74 is that the RC oscillator provides reference clock for ATT7025.LCD display is adopted in liquid crystal display 14, except normal demonstration total electricity consumption, dump energy, can also additionally show different information indicatings symbol (comprise this purchase power consumption, dump energy, ammeter constant, ammeter address, purchase electric number of times, warning electric weight, the electric weight of loading, hoard electric weight etc.), electric weight shows six of integer-bit, two of decimal places.Debug circuit 15 downloads, programmes and debug microcomputer controller by external unit.U11 and peripheral circuit are formed infrared receiving circuit in the infrared driver circuit 16, drive triode Q2, infrared diode HW1 and form infrared transtation mission circuit, can carry out this locality with infrared palm machine by the infrared communication interface and purchase.
The utlity model has electric energy meter informationization, robotization and interactive management function, realize that the user does not go out to go up the door and just can realize the Network electric meter pre paid functionality.
Claims (4)
1. be with pernicious load Control Network pre-payment single-phase electric energy meter by voltage and current detection circuit, relay, verification port, pilot lamp, encryption chip, key circuit, the cell voltage power-fail detection circuit, power-fail detection circuit, power circuit and real time clock circuit, microcomputer controller, reset and warning circuit flash chip, RS485 telecommunication circuit, outside oscillatory circuit, liquid crystal display, debug circuit, infrared driver circuit is formed; It is characterized in that: described voltage and current detection circuit is transferred to microcomputer controller with filtering after-current signal, relay links to each other with microcomputer controller, the verification port links to each other with microcomputer controller, encryption chip is transferred to microcomputer controller to transmitted data on network and handles after encrypting and decrypting is handled, cell voltage power-fail detection circuit and power-fail detection circuit are transferred to the microcomputer controller port to 3.6V cell voltage and 220V voltage respectively behind electric resistance partial pressure, microcomputer controller, reset and warning circuit employing single-phase electric energy computation chip, when the ammeter arrearage, triode 8050 and hummer output alarm signal, flash chip links to each other with the microcomputer controller port, the RS485 telecommunication circuit is connected with the microcomputer controller serial communication, outside oscillatory circuit links to each other with microcomputer controller, for microcomputer controller provides reference clock, debug circuit links to each other with the microcomputer controller output port, by external unit microcomputer controller is downloaded, programming and debugging, infrared driver circuit and microcomputer controller serial communication.
2. according to claim 1ly be with pernicious load Control Network pre-payment single-phase electric energy meter, it is characterized in that: described microcomputer controller adopts ATT7025 single-phase electric energy computation chip.
3. according to claim 1ly be with pernicious load Control Network pre-payment single-phase electric energy meter, it is characterized in that: described relay is made up of two magnetic latching relays.
4. according to claim 1ly be with pernicious load Control Network pre-payment single-phase electric energy meter, it is characterized in that: described RS485 telecommunication circuit OP3, OP4 have isolated two-way signal of communication, U8 has adopted technical grade 65LBC3082 chip, and uses discharge tube, TVS pipe and thermistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920256285XU CN201654126U (en) | 2009-11-19 | 2009-11-19 | Network prepayment single-phase electric energy meter with malignant load control |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920256285XU CN201654126U (en) | 2009-11-19 | 2009-11-19 | Network prepayment single-phase electric energy meter with malignant load control |
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| CN201654126U true CN201654126U (en) | 2010-11-24 |
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| CN200920256285XU Expired - Lifetime CN201654126U (en) | 2009-11-19 | 2009-11-19 | Network prepayment single-phase electric energy meter with malignant load control |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592493A (en) * | 2012-08-17 | 2014-02-19 | 苏州工业园区新宏博通讯科技有限公司 | Power-down detection circuit |
| CN104237630A (en) * | 2013-06-18 | 2014-12-24 | 浙江正泰仪器仪表有限责任公司 | Single-phase electronic type keyboard prepayment meter |
| CN106097588B (en) * | 2016-06-15 | 2018-11-02 | 无锡市恒通电器有限公司 | A kind of single-phase cost-control intelligent ammeter |
-
2009
- 2009-11-19 CN CN200920256285XU patent/CN201654126U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592493A (en) * | 2012-08-17 | 2014-02-19 | 苏州工业园区新宏博通讯科技有限公司 | Power-down detection circuit |
| CN104237630A (en) * | 2013-06-18 | 2014-12-24 | 浙江正泰仪器仪表有限责任公司 | Single-phase electronic type keyboard prepayment meter |
| CN104237630B (en) * | 2013-06-18 | 2017-07-11 | 浙江正泰仪器仪表有限责任公司 | A kind of electronic single-phase keyboard prepayment meter |
| CN106097588B (en) * | 2016-06-15 | 2018-11-02 | 无锡市恒通电器有限公司 | A kind of single-phase cost-control intelligent ammeter |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WUXI RUITAI ENERGY-SAVING SYSTEM SCIENCE CO., LTD. Free format text: FORMER OWNER: JIANGNAN UNIVERSITY Effective date: 20140530 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 214123 WUXI, JIANGSU PROVINCE TO: 214126 WUXI, JIANGSU PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20140530 Address after: 214126, Wuxi Jiangsu New District, Taihu international science and Technology Park, sensor network, University Science Park building, building E, five floor Patentee after: Wuxi Ruitai Energy-Saving System Science Co., Ltd. Patentee after: Wuxi Hengtong Electric Appliance Co., Ltd. Address before: 214123 Jiangsu city of Wuxi Province River Road No. 170 Patentee before: Jiangnan University Patentee before: Wuxi Ruitai Energy-Saving System Science Co., Ltd. Patentee before: Wuxi Hengtong Electric Appliance Co., Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101124 |