CN2382024Y - Pre-paying or pre-using intellectual card kilowatt-meter - Google Patents

Abstract

The utility model relates to a pre-paying or pre-using intellectual card electric energy meter which is formed by connecting a casing, a panel, a connecting box and a printed circuit board. The circuit board is fixed in the casing. The utility model has the circuit that a rotary table photoelectric conversion circuit is connected with an intellectual card read/write circuit and a microcomputer unit through a photoelectric signal transmission line. A stabilized power supply circuit is connected with each circuit through a power line. A serial capacitive storage circuit, a power cut detection circuit and an electricity stealing detection circuit respectively is connected with the microcomputer unit through a storage signal line, a power cut signal line and an electricity stealing signal line. The microcomputer unit respectively is connected with a display circuit, a condition indicating circuit and a current supply control circuit through a display signal line, a condition signal line and a current supply control signal line. The electric energy meter has the advantages of accurate and concise display, convenient operation and multiple functions.

Description

The instructions prepayment is in advance with smart card electric energy meter convenient to both

The utility model---prepayment belongs to the Alternating Current Power Supply automatic control technology, particularly intelligent power supply in advance with smart card electric energy meter convenient to both.

In recent years, rising both at home and abroad and adopt the electronic management means to realize Alternating Current Power Supply and charging, with reach user's plan purchase electric electricity consumption, power supply scientific management, in time reclaim the electricity charge, prevent that electric energy from stealing and leak etc.At present the utmost point wait to develop a kind of easy to operate, indicating mode simple and clear, accurate multifunctional electric energy meter.

The purpose of this utility model is exactly to be difficult to the electricity arrears and the recovery problem that solve for a long time in order to solve, carry out the power supply scientific management effectively, accomplish to plan to purchase electricity, electricity consumption, a kind of convenient operating maintenance that research and design forms, the simple and clear accurate multi-functional prepayment of indicating mode are in advance with smart card electric energy meter convenient to both.

The utility model is realized by following structure technology scheme: prepayment in advance with the contour structures synoptic diagram of smart card electric energy meter convenient to both as shown in Figure 1, it is by casing 8, panel, terminal box 9, printed circuit board (PCB) connects and composes jointly, offer card slot 4 and the transparent windows 5 that is embedded with the transparent organic glass sheet on the panel, on the machine shell panel in the view window mechanical counter 1 is housed, rotating disk 2, digital display screen 3, electric weight pilot lamp 6, electricity money pilot lamp 7, circuit board is installed in the casing 8, patching panel 9 and casing 8 are for fixedlying connected the digital display screen 3 on the panel, electric weight pilot lamp 6, electricity money pilot lamp 7, terminal box 9 all is electrically connected mutually with circuit board; Its circuit block diagram as shown in Figure 2, its circuit is by rotating plate photoelectricity change-over circuit 10, smart card read/write circuit 11, voltage-stabilized power supply circuit 12, serial storage circuit 13, power failure detection circuit 14, stealing testing circuit 15, microcomputer elementary cell 16, digital display circuit 17, condition indication circuit 18, power-supplying circuit 19 is electrically connected formation jointly, its interconnected relationship is: rotating plate photoelectricity change-over circuit 10 is electrically connected mutually by photosignal transmission line and smart card read/write circuit 11 and is electrically connected mutually with microcomputer elementary cell 16, voltage-stabilized power supply circuit 12 is electrically connected with the power end of each circuit mutually by power supply output line, serial storage circuit 13, power failure detection circuit 14, stealing testing circuit 15 is respectively by the storage output line, the outage detection signal wire, stealing signal lines and microcomputer elementary cell 16 are electrically connected mutually, and microcomputer elementary cell 16 is respectively by the digital displaying signal line, the condition indicative signal line, power supplying control signal line and digital display circuit 17, condition indication circuit 18, power-supplying circuit 19 is electrically connected mutually; Its circuit theory diagrams as shown in Figure 3, wherein, rotating plate photoelectricity change-over circuit 10 is by photoelectricity testing part U1, resistance R 1, R2, capacitor C 4, integration member U7 parallel-series connects and composes, smart card read/write circuit 11 is by extrapolation smart card U0, K switch 1, resistance R 10 parallel-seriess connect and compose, voltage-stabilized power supply circuit 12 is by power transformer T1, diode D1, D2, capacitor C 7～C10, voltage stabilizing integration member U12 parallel-series connects and composes, serial storage circuit 13 is by integration member U6, resistance R 5, the R6 parallel-series connects and composes, power failure detection circuit 14 is by integration member U2, transistor T R, voltage stabilizing diode Z1, diode D3, D4, resistance R 3, R4, R11, capacitor C 5, the C6 parallel-series connects and composes, stealing testing circuit 15 is by photoelectric coupled device U11, diode D6, resistance R 12, R13 and contact switch K3 parallel-series connect and compose, microcomputer elementary cell 16 is by integration member U3～U5, crystal oscillator CY, capacitor C 1～C3, resistance R 7, R8, button switch K 4 parallel-seriess connect and compose, digital display circuit 17 is display module U13, condition indication circuit 18 is by integration member U9, U10, LED 1～LED2, resistance R 9 parallel-seriess connect and compose, and power-supplying circuit 19 is by integration member U8, relay R Y, diode D5 parallel-series connects and composes.The principle of work of circuit square frame is purchased the user by: smart card read/write circuit 11 data such as electric weight and is sent into microcomputer elementary cell 16, makes power-supplying circuit 19 actions, powers to the user.10 pairs of electricity consumption revolutions of rotating plate photoelectricity change-over circuit add up, and the result is stored in the serial storage circuit 13, deliver to the Alternation Display that digital display circuit 17 is carried out dump energy, electric money on demand.Interrupt in case civil power takes place, power failure detection circuit 14 records current data in the serial storage circuit 13 at once, makes to recover the operation that can continue after the energising.When electricity filching behavior appearred in the user, stealing testing circuit 15 moved immediately, signal is delivered to microcomputer elementary cell 16 handle and put on record.Condition indication circuit 18 is done corresponding indication at various working conditions; The action principle of its circuit is: enable first, because of K2 does not move, power supply is in dissengaged positions.When smart card U0 inserted draw-in groove, K1 was disconnected, and the U4 in the microcomputer elementary cell reads the throwing electricity data among the U0, and delivers to the Alternation Display that digital display module U13 makes electric weight, electric money value, accurately was shown to behind the decimal 1; Meanwhile, the relay R Y of power-supplying circuit makes contact switch K2 action, powers to the user.U0 dials behind draw-in groove, shows to disappear, and changes by LED2 indication normal operating conditions.In the user power utilization process, the number of revolutions of electric energy meter rotating disk becomes electric impulse signal by photoelectric commutator U1, sends into that U4 counts and calculation process.When reducing to null value, then relay R Y operation, power supply is cut off, and this moment, the user dropped into new electric weight again, and then power supply just recovers to carry out.If when not reducing to null value, the user drops into new electric weight, and electric energy meter is then carried out electric weight automatically and added up.Under the normal condition, the current collection that alternating current makes transistor T R through D3, D4, Z1 path is low level very, and keeping the output terminal 13 of trigger integration member U2 is high level; In case have a power failure, the AC signal of D3, D4 disappears, and 13 pin of U2 produce low level, and the U4 response of microcomputer elementary cell is interrupted, and current data is sent into U6 preserve, and retrieves operation behind the telegram in reply.If electricity filching behavior appears in the user, can be caused contact switch K3 to connect by the supply access of short circuit, AC signal is sent pulse signal through photoelectric coupled device U11, causes that microcomputer elementary cell record puts on record, and corresponding LED1 pilot lamp is shinny.Voltage-stabilized power supply circuit 12 provides 5 volts of direct supplys by three-terminal voltage-stabilizing integration member U12, for the usefulness of complete machine work.

The utility model compared with prior art has following advantage and useful effect: (1) is because the utility model is the smart card multifunctional electric energy meter of electromechanical integration, power supply grid can be carried out the power supply scientific management after using the utility model, the user buys smart card forward purchasing electric weight by payment in advance, or two kinds of working methods of time limit payment after the electricity consumption, solved and be difficult to the electricity arrears and the recovery problem that solve for a long time always; (2) because of adopting electronics metering and numeral, the utility model shows the high order of magnitude of its ratio of precision like product; (3) the utility model does not need reserve battery, can realize automatic perception of outage and recording real-time data, and the operation that continues after recovery is switched on; (4) the utility model adopts single draw-in groove, and is furnished with unique imitative pseudo-algorithm, must button and add facility, and just can online implementation electric weight input, electric weight unloads multiple functions such as note, tariffs on electricity change, the electric money of dump energy, overload protection, stealing punishment; (5) the utility model indication is simple and clear, easy to operate.This electric energy meter must reserve battery, does not have the problem of battery altering and maintenance; (6) this electric energy meter adopts five-digit number to show, demonstration can be accurate to behind the radix point one, exceeds an order of magnitude than the electrical power meter accuracy that only is shown to integer-bit of common usefulness.

Below Figure of description is further specified as follows: Fig. 1 is the pre-contour structures synoptic diagram with smart card electric energy meter convenient to both of prepayment, and Fig. 2 is the circuit block diagram of this electric energy meter, and Fig. 3 is the circuit theory diagrams of this electric energy meter.Among each figure: 1 be mechanical counter, 2 for rotating disk, 3 for digital display screen, 4 for the card slot, 5 for transparent windows, 6 for the electric weight pilot lamp, 7 for electric money pilot lamp, 8 for casing, 9 for terminal box, T1 is that transformer, VCC are that direct supply, K1, K2, K3 are respectively switch, K4 is that pushbutton switch, CY are crystal oscillator.

Embodiment of the present utility model is as follows: 1. be processed into the casing 8 of 160 * 120 * 110mm with engineering plastics or sheet metal, the casing front is provided with the view window 6 of a 70 * 70mm, embeds the transparent organic glass sheet.The positive basifacial of casing is offered a card slot, and smart card U0 can be inserted from notch; 2. selection standardization machinery electric energy watch core is installed in casing inside as metering unit, and the outer downside of casing connects the plastics four hole electric source connecting boxes 9 of 80 * a 35 * 30mm.See through view window and can see mechanical counter 1, rotating disk 2, and increase 5 bit digital display screens 3 and two luminous indicating lamps 6,7 of joining; 3. by shown in Figure 3, rotating plate photoelectricity converter circuit 10 and digital display module 17 are plotted on the printed circuit board; Voltage-stabilized power supply circuit 12 and stealing testing circuit 15 are plotted on the printed circuit board; All the other smart card read/write circuits 11, serial storage circuit 13, power failure detection circuit 14, microcomputer elementary cell 16, condition indication circuit 18, power-supplying circuit 19 etc. are plotted on the printed circuit board.Three printed circuit board are burn-on behind the components and parts of screening, are installed in casing inside.Wherein: the optional extrapolation smart card of U0 AT88SC102, the optional photoelectric sensor GP2S05 of U1, optional 8 the optional serial memory of program storage M2764, the U6 NM24C08 of optional 8 chip microprocessor P8032AH, U5 of the optional monostalbe trigger SN54LS123 of U2, U3 optional 8 latch 74LS373, U4, the optional three terminal regulator LM7805 of U12.Be electrically connected mutually by shown in Figure 3 then, and simply debug, just can better implement the utility model.

Claims (1)

1, a kind of prepayment is in advance with smart card electric energy meter convenient to both, it is characterized in that: it is by casing (8), panel, patching panel (9), printed circuit board (PCB) connects and composes jointly, offer card slot (4) on the panel and be embedded with the transparent windows (5) of transparent organic glass sheet, on the machine shell panel in the view window mechanical counter (1) is housed, rotating disk (2), digital display screen (3), electric weight pilot lamp (6), electricity money pilot lamp (7), circuit board is installed in the casing (8), terminal box (9) and casing (8) are for fixedlying connected the digital display screen on the panel (3), electric weight pilot lamp (6), electricity money pilot lamp (7), terminal box (9) all is electrically connected mutually with circuit board; Its circuit is by rotating plate photoelectricity change-over circuit (10), smart card read/write circuit (11), voltage-stabilized power supply circuit (12), serial storage circuit (13), power failure detection circuit (14), stealing testing circuit (15), microcomputer elementary cell (16), digital display circuit (17), condition indication circuit (18), power-supplying circuit (19) is electrically connected formation jointly, its interconnected relationship is: rotating plate photoelectricity change-over circuit (10) is electrically connected mutually by photosignal transmission line and smart card read/write circuit (11) and is electrically connected mutually with microcomputer elementary cell (16), voltage-stabilized power supply circuit (12) is electrically connected with the power end of each circuit mutually by power supply output line, serial storage circuit (13), power failure detection circuit (14), stealing testing circuit (15) is respectively by the storage output line, the outage detection signal wire, stealing signal lines and microcomputer elementary cell (16) are electrically connected mutually, and microcomputer elementary cell (16) is respectively by the digital displaying signal line, the condition indicative signal line, power supplying control signal line and digital display circuit (17), condition indication circuit (18), power-supplying circuit (19) is electrically connected mutually; Wherein, rotating plate photoelectricity change-over circuit (10) is by photoelectricity testing part U1, resistance R 1, R2, capacitor C 4, integration member U7 parallel-series connects and composes, smart card read/write circuit (11) is by extrapolation smart card U0, K switch 1, resistance R 10 parallel-seriess connect and compose, voltage-stabilized power supply circuit (12) is by power transformer T1, diode D1, D2, capacitor C 7～C10, voltage stabilizing integration member U12 parallel-series connects and composes, serial storage circuit (13) is by integration member U6, resistance R 5, the R6 parallel-series connects and composes, power failure detection circuit (14) is by integration member U2, transistor T R, voltage stabilizing diode Z1, diode D3, D4, resistance R 3, R4, R11, capacitor C 5, the C6 parallel-series connects and composes, stealing testing circuit (15) is by photoelectric coupled device U11, diode D6, resistance R 12, R13 and contact switch K3 parallel-series connect and compose, microcomputer elementary cell (16) is by integration member U3～U5, crystal oscillator CY, capacitor C 1～C3, resistance R 7, R8, button switch K 4 parallel-seriess connect and compose, digital display circuit (17) is display module U13, condition indication circuit (18) is by integration member U9, U10, LED 1～LED2, resistance R 9 parallel-seriess connect and compose, and power-supplying circuit (19) is by integration member U8, relay R Y, diode D5 parallel-series connects and composes.

Images