CN2243663Y

CN2243663Y - Electric power data collecting and centrically controlling device of electric meter

Info

Publication number: CN2243663Y
Application number: CN 95209425
Authority: CN
Inventors: 申景荣
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-04-22
Filing date: 1995-04-22
Publication date: 1996-12-25
Anticipated expiration: 2005-04-22

Abstract

The utility model relates to an electric power data collecting and integrated controller of the electric meter, which is composed of K terminals 2, a transmission bus 3, an integrated controller 4, a transmission medium 5, and a supervisory computer 6. K terminals, the transmission bus, and a central control device are arranged in a closed casing 1. Because the utility model realizes the integrated control structure of the quantity of the electricity collecting, the processing, the storage, the display of the user's electric power, and the operating state of the electricity meter, has the advantages of high automatization, theft protection, strong destructive prevention, high accuracy, low cost, and strong expansibility, reduces the labor intensity, and improves the work efficiency. The utility model increases the transparency between the user and the electric power management department.

Description

Watt-hour meter electric quantity data acquisition and central control device

Watt-hour meter electric quantity data acquisition and central control device belong to the automaton of collection to power consumption, processing, toll administration.

Existing watt-hour meter generally all is the induction mechanical type, and what the collection of electric weight was carried out is the manual metering mode.Therefore exist inevitably inaccurate, real-time is poor, labour intensity is big, the shortcoming that the input personnel are many.For solving the problem that the induction type mechanical watt-hour meter exists, following several paying watt-hour meter that give appear in recent years, as magnetic card type watt-hour meter, slot meter, single user's electric card type watt-hour meter.But they are all because of existing following shortcoming and defect not popularize.As magnetic card type watt-hour meter owing to need establish card-reading system, thereby cost height, reliability is low, and safeguards difficulty.Though single user's electric card type watt-hour meter is advanced, can finish the automatic collection that user's electric weight gives paying and electric weight, but still have following shortcoming: one, the electricity card is grasped in user's hand, will be blocked by individual subscriber and insert input and the collection that watt-hour meter is finished electric weight, user direct contact ammeter.Therefore, be difficult to prevent power stealing, steal electricity and artificial destruction, and form by conventional memory spare, so easily by imitated because of blocking.Two, because of a family one card, difficult management, maintenance workload is big, and is fragile, the cost height.Three, single this height of telogenesis, the restriction that is subjected to table function and complicacy of reducing cost (because of single table to possess data acquisition, storage, to functions such as user's video data, special card).Four, giving further, networking, robotization cause difficulty.

The purpose of this utility model is that design is a kind of to watt-hour meter employing centralized configuration, and realize electric quantity data is concentrated collection, processing, management, to improve automaticity, accuracy and the real-time of electrical management, reduce labor intensity, for the user provide intuitively, easily, real-time with electricity condition and data.For electric administrative department is implemented the effective management of power use, improve the transparency between electric administrative department and the user, provide a kind of effective device for preventing illegal electricity consumption.

The utility model is made up of K terminal, transfer bus, Centralized Controller, transmission medium, supervisory computer.Each terminal is made up of the interface circuit of mechanical watt-hour meter, reflective sampling thief, synchronizing pulse sample circuit, data processing and storage circuit, ammeter universal serial bus.The interface circuit of reflective sampling thief, synchronizing pulse sample circuit, data processing and storage circuit, ammeter universal serial bus all is assembled in the mechanical watt-hour meter.K terminal all linked to each other with Centralized Controller by transfer bus.Centralized Controller is made up of display circuit, central data treatment circuit, clock control circuit, monitoring and reset circuit, controller bus interface circuit, input/output bus interface circuit.K terminal, transfer bus, central controller are arranged in the middle of the housing of a sealing, this unit of primordial.Supervisory computer is communicated with N elementary cell by transmission medium and forms supervising the network.The display circuit of Centralized Controller, central data treatment circuit, clock control circuit, monitoring and reset circuit, controller bus interface circuit, input/output bus interface circuit all are contained in the middle of the housing, the upper end of housing front panel is provided with two row's User Status pilot lamp, it below the pilot lamp row's data display screen, right side, front panel lower end is an IO interface socket, and left side, front panel lower end is provided with user's electric weight the Show Button, a date the Show Button.On the side panel of housing, be provided with a transfer bus interface socket.Transmission medium is an IC-card, and IC-card is made up of single chip microcomputer, interface chip, memory.The central controller of an IC-card and supervisory computer and N elementary cell is implemented instantaneous contact separation transmission manner.

The utility model is owing to the centralized control structure of having realized user's electric quantity acquisition, processing, storage, demonstration and ammeter duty are shown, thereby the user need not reading of data from this electric supply meter again, also just realized the concentrated totally enclosed type device of electric supply meter and controller.So just can be convenient to manage, stop the damage of illegal electricity consumption and ammeter and controller and lose.Automaticity is high greatly, and whole data handling procedure need not manually to participate in, and accurate measurement is real-time, and unmanned is inaccurate factor.Reduce the meter reading personnel, alleviated labour intensity, improved work efficiency.Whole cost is low, compares cost with single deck tape-recorder formula watt-hour meter and can reduce about 30～70%.The system expandability is strong, and the termination extension in the elementary cell is also strong, and terminal can reach 250 at most.The transparency height, the user see own last electric weight on can slave controller at any time, when last electric weight during less than certain value, state refers to that lamp just alarms to user prompt, calls the electricity charge.The quantity of information that obtains on the electrical management personnel slave controller is also big, comprise Date of Sampling, time, the last electric weight of each user, user's excess power consumption and time of super usefulness.One table multipotency, this control device also can have the function of time-sharing electricity meter.The maintainer can determine the duty of each electric supply meter by the status indicator lamp of controller, provides intuitively, safeguards easily and diagnostic information, has made things convenient for the maintainer.

Fig. 1 is the whole theory diagram of the utility model, Fig. 2 is the utility model one-piece construction synoptic diagram, Fig. 3 is the contour structures synoptic diagram of central controller 4, Fig. 4 is the structural representation of reflective sampling thief 31, Fig. 5 is the structural representation of synchronizing pulse sample circuit, Fig. 6 is the electrical block diagram of ammeter bus interface circuit 10, and Fig. 7 is the electrical block diagram of controller bus interface circuit 28.

Embodiment: present embodiment is made up of 28 terminals 2, transfer bus 3, Centralized Controller 4, transmission medium 5, supervisory computer 6.28 terminals 2, transfer bus 3, Centralized Controllers 4 are arranged in the housing 1 of a sealing.

Each terminal 2 is made up of the interface circuit 10 of mechanical watt-hour meter, reflective sampling thief 31, synchronizing pulse sample circuit 8, data processing and storage circuit 9, ammeter universal serial bus.The interface circuit 10 of reflective sampling thief 31, synchronizing pulse sample circuit 8, data processing and storage circuit 9, ammeter universal serial bus all is arranged in the mechanical watt-hour meter.

Centralized Controller 4 is made up of display circuit 24, central data treatment circuit 25, clock control circuit 26, monitoring and reset circuit 27, controller bus interface circuit 28, input/output bus interface circuit 29.Display circuit 24, central data treatment circuit 25, clock control circuit 26, monitoring and reset circuit 27, controller bus interface circuit 28, input/output bus interface circuit 29 all are contained in the housing 44 of Centralized Controller 4.The upper end of housing 44 front panels 45 is provided with two row's User Status pilot lamp 46, it below the pilot lamp 46 row's data display screen 47, right side, front panel 45 lower end is the socket 48 of IC-card, and front panel lower end left side is provided with user's electric weight the Show Button 49, a date the Show Button 50.On the side panel 51 of housing 44, be provided with a transfer bus interface socket 52.

Reflective sampling thief 31 is made up of rotating disk 11, the infrared transceiver of mechanical watt-hour meter, is provided with a black arcuate zone 15 on the card of rotating disk 11, and infrared transceiver is made up of infrared transmitting tube 13, infrared receiving tube 14, frame 12.Power valve 13 and receiving tube 14 are installed in the two ends of frame 12 respectively, the light head of power valve 13 is aimed on the rotating disk 11 in the black arcuate zone 15 residing ring belts 16, in the light belt that reflects again after the light that the reception head of receiving tube 14 is aimed at power valve 13 emissions is mapped on the ring belt 16.The arc length of black arcuate zone 15 is less than 1/2nd of ring belt 16 arc length.

Synchronizing pulse sample circuit 8 by oscillator 17, synchronizing pulse form circuit 18, infrared emission circuit 19, infrared receiving circuit 20, receive amplifying circuit 21, synchrolock storage 22 is formed.The output terminal O of oscillator 17 ₁Press the input end CK that synchronizing pulse forms circuit 18, synchronizing pulse forms the output terminal Q of circuit 18 ₁Connect the input end of infrared emission circuit 19, synchronizing pulse forms another output terminal Q of circuit 18 ₁Meet the input end of clock CP of synchrodata latch 22 ₂The input end D of synchrodata latch 22 receives the output terminal O of amplifying circuit 21 ₂, the output terminal Q of synchrodata latch 22 ₂Meet the CPU of data processing and storage circuit 9.Synchronizing pulse forms circuit 18 by d type flip flop, delay circuit R ₁, C ₁Form R ₁, C ₁Series connection back C ₁One end ground connection, R ₁The input end of clock CP of another termination d type flip flop ₁, R ₁With C ₁Tie point meet the asynchronous data clear terminal CL of d type flip flop.Trigger is selected 74HC74 for use, and the synchronous pulse data latch is selected d type flip flop for use, and its model is 74HC74.

Ammeter serial bus interface circuit 10 isolates input serial bus interface circuit 23 by photoelectricity and photoelectricity is isolated output serial bus interface circuit 36, reset circuit 53 is formed.Photoelectricity is isolated input serial bus interface circuit 23 and is made up of shaping amplification circuit 30, photoelectrical coupler 54.Photodiode D in the photoelectrical coupler ₁The two poles of the earth connect two output terminals of shaping amplification circuit 30, phototriode T in the photoelectrical coupler 54 ₁Collector meet the input end of reset circuit 53 and the single-chip microcomputer IC of data processing and storage circuit 9 ₀Serial input port SI end.Photoelectrical coupler 54 is selected TIL113 for use.Photoelectricity is isolated output serial bus interface circuit 36 and is made up of amplifier 33, photoelectrical coupler 34, output amplification buffer circuit 35.IC ₀T in the serial delivery outlet SO termination amplifier 33 ₃Base stage, amplifier 33 is by T ₃, R _C2Form.R _C2Be connected on T ₃Collector and the photodiode D of photoelectrical coupler 34 ₂Positive pole between, T ₃Emitter connect power supply, D ₂Minus earth, the phototriode T in the photoelectrical coupler 34 ₂Collector and emitter connect two input ends that buffer circuit 35 is amplified in output.Photoelectrical coupler 34 is selected TIL113 for use.

Reset circuit 53 is by IC ₃, R ₃, R ₂, C ₃, C ₂, T ₄Form.R ₃, C ₃Be connected between power supply and the ground C ₂, R ₂Also be connected between power supply and the ground T after the series connection ₄Base stage meet R ₃With C ₃Tie point, T ₄Emitter meet C ₂With R ₂Tie point and the single-chip microcomputer IC of data processing and storage circuit 9 ₀Reset terminal, T ₄Collector and C ₂A termination power, R ₂With C ₃Tie point ground connection.IC ₁Select 74HC05 for use, IC ₁Output termination T ₄Base stage.

Controller bus interface circuit 28 is amplified buffer circuit 42 and is formed by input the pull up transistor circuit 38, input amplification and rectification circuit 39, input optocoupler 40, negative circuit 43, output photoelectrical coupler 41, output of circuit 37, output that pull up transistor.Input pulls up transistor circuit 37 by T ₅, D ₅, R ₅Form D ₅Positive pole meet T ₅Emitter, D ₅Negative pole meet T ₅Base stage, R ₅Be connected on T ₅Collector and base stage between, T ₅Collector connect power supply.Output pulls up transistor circuit 38 by T ₆, D ₆, R ₆Form, its syndeton and the input circuit 37 that pulls up transistor is identical.Import the input end of the output termination amplification and rectification circuit 39 of the circuit 37 that pulls up transistor.Photoelectric diode D in the input optocoupler 40 ₃The two poles of the earth connect the output terminal of amplification and rectification circuit 39, phototriode T in the input optocoupler 40 ₇Collector through R ₄Connect power supply, T ₇Grounded emitter, T ₇Collector meet single-chip microcomputer IC in the central data treatment circuit 25 ₃Serial port input end SI ₃IC ₃Serial port output terminal SO ₃Meet T in the negative circuit 43 ₉Base stage, T ₉Emitter connect power supply, T ₉Collector through R ₇Meet photodiode D in the output photoelectrical coupler 41 ₄Positive pole, D ₄Minus earth.Phototriode T in the photoelectrical coupler 41 ₈Collector and emitter connect the input end that buffer circuit 42 is amplified in output.

Claims

1, watt-hour meter electric quantity data acquisition and central control device, it is made up of K terminal (2), transfer bus (3), Centralized Controller (4), transmission medium (5), supervisory computer (6), it is characterized in that K terminal (2), transfer bus (3), centralized control dress device (4) are arranged in the housing (1) of a sealing.

2, each terminal (2) of watt-hour meter electric quantity data acquisition according to claim 1 and central control device is made up of the interface circuit (10) of mechanical watt-hour meter, reflective sampling thief (31), synchronizing pulse sample circuit (8) data processing and storage circuit (9), ammeter universal serial bus, it is characterized in that the interface circuit (10) of reflective sampling thief (31), synchronizing pulse sample circuit (8), data processing and storage circuit (9), watt-hour meter universal serial bus all is arranged in the mechanical watt-hour meter.

3, the Centralized Controller (4) of watt-hour meter electric quantity data acquisition according to claim 1 and central control device is by display circuit (24), central data treatment circuit (25), clock control circuit (26), monitoring and reset circuit (27), controller bus interface circuit (28), input/output bus interface circuit (29) is formed, it is characterized in that (24), (25), (26), (27), (28), (29) these circuit all are contained in the housing (44) of Centralized Controller (4), the upper end of housing (44) front panel (45) is provided with two row's User Status pilot lamp (46), it below the pilot lamp (46) row's data display screen (47), the left side, lower end of front panel (45) is provided with user's electric weight the Show Button (49), date the Show Button (50), the right side of plate (45) lower end is provided with the socket (48) of IC-card in front, is provided with a transfer bus interface socket (52) on the side panel (51) of housing (44).

4, according to claim 1,2 described watt-hour meter electric quantity data acquisition and central control devices, it is characterized in that the rotating disk (11) of reflective sampling thief (31) by mechanical watt-hour meter, infrared transceiver is formed, on the card of rotating disk (11), be provided with a black arcuate zone (15), infrared transceiver is by infrared transmitting tube (13), infrared receiving tube (14), frame (12) is formed, power valve (13) and receiving tube (14) are installed in the two ends of frame (12) respectively, the light head of power valve (13) is aimed at rotating disk (11) and is gone up in the residing ring belt of black arcuate zone (15) (16), the light that the reception head of receiving tube (14) is aimed at power valve (13) emission is mapped in the light belt that reflects again after circular arc band (16) is gone up, and the black arcuate zone is less than and equals 1/2nd of ring belt (16) arc length.

5, according to the synchronizing pulse sample circuit (8) of claim 1,2 described watt-hour meter electric quantity data acquisitions and central control device by oscillator (17), synchronizing pulse form circuit (18), infrared emission circuit (19), infrared receiving circuit (20), receive amplifying circuit (21), synchrolock storage (22) is formed, and it is characterized in that the output terminal O of oscillator (17) ₁Meet the input end CK that synchronizing pulse forms circuit (18), synchronizing pulse forms the output terminal Q of circuit (18) ₁Connect the input end of infrared emission circuit (19), synchronizing pulse forms another output terminal Q of circuit (18) ₁Meet the input end of clock CP of synchrodata latch (22) ₂, the output terminal Q of synchrodata latch (22) ₂Meet the CPU of data processing and storage circuit (9); Synchronizing pulse forms circuit (18) by d type flip flop, delay circuit R ₁, C ₁Form R ₁, C ₁Series connection back C ₁One end ground connection, R ₁The input end of clock CP of another termination d type flip flop ₁, R ₁With C ₁Tie point meet the asynchronous data clear terminal CL of d type flip flop.

6, form by photoelectricity isolation input serial bus interface circuit (23) and photoelectricity isolation output serial bus interface circuit (36), reset circuit (53) according to the ammeter serial bus interface circuit (10) of claim 1,2 described watt-hour meter electric quantity data acquisitions and central control device, it is characterized in that photoelectricity isolates input end serial bus interface circuit (23) and is made up of shaping amplification circuit (30), photoelectrical coupler (54), the middle photoelectric diode D of photoelectricity coupling electrical equipment (54) ₁The two poles of the earth connect two output terminals of shaping amplification circuit (30), phototriode T in the photoelectrical coupler (54) ₁Collector meet the input end of reset circuit (53) and the single-chip microcomputer IC of data processing and storage circuit (9) ₀Serial input port SI end; Photoelectricity is isolated output serial bus interface circuit (36) and is formed IC by amplifier (33), photoelectrical coupler (34), output amplification buffer circuit (35) ₀T in the serial delivery outlet SO termination amplifier (33) ₃Base stage, amplifier (33) is by T ₃, R _C2Form R _C2Be connected on T ₃Collector and the photodiode D of photoelectrical coupler (34) ₂Positive pole between, T ₃Emitter connect power supply, D ₂Minus earth, the phototriode T in the photoelectrical coupler (34) ₂Collector and emitter connect two input ends that buffer circuit (35) is amplified in output.

7,, it is characterized in that reset circuit (53) is by IC according to claim 1,3 described watt-hour meter electric quantity data acquisition and central control devices ₁, R ₃, R ₂, C ₃, C ₂, T ₄Form R ₃, C ₃Be connected between power supply and the ground C ₂, R ₂Also be connected between power supply and the ground T after the series connection ₄Base stage meet R ₃With C ₃Tie point, T ₄Emitter meet C ₂With R ₂Tie point and the single-chip microcomputer IC of data processing and storage circuit (9) ₀Reset terminal, T ₄Collector and C ₂, R ₃A termination power, R ₂With C ₃Tie point ground connection, IC ₁Output termination T ₄Base stage.

8, according to claim 1,3 described watt-hour meter electric quantity data acquisition and central control devices, controller bus interface circuit 28 is amplified buffer circuit (42) and is formed by input the pull up transistor circuit (38), input amplification and rectification circuit (39) input optocoupler (40), negative circuit (43), output photoelectrical coupler (41), output of circuit (37), output that pull up transistor, and it is characterized in that importing pulling up transistor circuit (37) by T ₅, D ₅, R ₅Form D ₅Positive pole meet T ₅Emitter, D ₅Negative pole meet T ₅Base stage, R ₅Be connected on T ₅Collector and base stage between, T ₅Collector connect power supply, output pull up transistor circuit (38) by T ₆, D ₆, R ₆Form, import the input end of the output termination amplification and rectification circuit (39) of the circuit (37) that pulls up transistor; Photodiode D in the input optocoupler (40) ₃The two poles of the earth connect the output terminal of amplification and rectification circuit (39), phototriode T in the input optocoupler (40) ₇Collector through R ₄Connect power supply, T ₇Grounded emitter, T ₇Collector meet single-chip microcomputer IC in the central data treatment circuit (25) ₃Serial port input end SI ₃, IC ₃Serial port output terminal SO ₃Meet T in the negative circuit (43) ₉Base stage, T ₉Emitter connect power supply, T ₉Collector through R ₇Meet photodiode D in the output photoelectrical coupler (41) ₅Positive pole, D ₄Minus earth, phototriode T in the photoelectrical coupler (41) ₈Collector and emitter connect the input end that buffer circuit (42) is amplified in output.