CN205620468U - Multi -functional single -phase compound rate ammeter - Google Patents
Multi -functional single -phase compound rate ammeter Download PDFInfo
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- CN205620468U CN205620468U CN201620394790.0U CN201620394790U CN205620468U CN 205620468 U CN205620468 U CN 205620468U CN 201620394790 U CN201620394790 U CN 201620394790U CN 205620468 U CN205620468 U CN 205620468U
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Abstract
The utility model discloses a multi -functional single -phase compound rate ammeter, including input module, display screen, MCU control center, metering circuit, detection circuitry, communication circuit and stand -by power supply, MCU control center connects metering circuit, detection circuitry, communication circuit, poke ware, backup circuit, display screen and input module respectively. The utility model discloses the ammeter is three rates, 12 period electronic electric energy meter, and utensil liquid crystal display adopts the RS485 interface, uses the long -range automatic data logging control etc. Can be in order carrying out various operations to the ammeter, including check meter, programming, timing etc. Carry out each item manipulation processing through the SH79F32 singlechip, to unfavorable condition timely feedbacks such as under -voltage, the electric leakages of ammeter, adopt dual power supply moreover for this novel ammeter has that integrated level height, function are various, the advantage of stable performance, can save a large amount of manpower and materials moreover.
Description
Technical field
The utility model relates to a kind of ammeter, specifically a kind of Multifunctional single-phase time-sharing electricity meter.
Background technology
With scientific and technological development, electric utility becomes the pith of development in science and technology, and the basic living of people has be unable to do without electricity
Can, Electro-metering is a requisite link, and a lot of at present places also use traditional meter reading method, i.e. from house to house
Knock at the door and check the electric meter, this mode not only wastes substantial amounts of manpower, and is unfavorable for data summarization and data transmission, easily
Cause loss of data and confusion, be highly detrimental to the development of modern power industry cause.
Utility model content
The purpose of this utility model is to provide a kind of Multifunctional single-phase time-sharing electricity meter, to solve to propose in above-mentioned background technology
Problem.
For achieving the above object, the following technical scheme of the utility model offer:
A kind of Multifunctional single-phase time-sharing electricity meter, including input module, display screen, MCU control centre, metering circuit, inspection
Slowdown monitoring circuit, communicating circuit and power circuit；Described MCU control centre connects metering circuit, testing circuit, communication electricity respectively
Road, poke device, stand-by circuit, display screen and input module；
Described communicating circuit includes photo-coupler M1, photo-coupler M2, chip IC 1 and interface S, the 1 of photo-coupler M1
Port connects resistance R1, and the other end of resistance R1 connects resistance R2 and MCU control centre, 2 ports of photo-coupler M1
Ground connection, 3 ports of photo-coupler M connect resistance R3, and 4 ports of photo-coupler M1 connect 1 pin of chip IC 1,
The other end of resistance R3 connects resistance R4, the emitter stage of triode VT1 and power supply U1, and the other end of resistance R2 connects light
1 port of coupler M2, the 2 port ground connection of photo-coupler M2,3 ports of photo-coupler M2 connect the another of resistance R4
4 pins of one end, resistance R5 and chip IC 1, the 4 port ground connection of photo-coupler M2, the other end of resistance R5 connects
The base stage of triode VT1, the colelctor electrode of triode VT1 connects the 3 of resistance R6,2 pins of chip IC 1 and chip IC 1
Pin, the other end ground connection of resistance R6,5 pins of chip IC 1 connect electric capacity C1 and power supply U1, another of electric capacity C1
End ground connection, 6 pins of chip IC 1 connect resistance R8, resistance R9 and resistance R10, and 7 pins of chip IC 1 connect electricity
The other end of resistance resistance R7, R10 and resistance R11,8 pin ground connection of chip IC 1, the other end of resistance R7 connects power supply
The other end ground connection of U1, resistance R8, the other end of resistance R9 connects 1 pin of interface S, and the other end of resistance R11 is even
2 pins of connection interface S；
Described power circuit includes triode V1, diode D1, chip IC 3 and chip IC 2, the pin of described chip IC 2
1 connection resistance R15, resistance R16, the anode of resistance R18 diode D1 and power supply VCC, the pin 2 of chip IC 2 is even
Meet fixing end, a battery E of electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, resistance R13, potentiometer RP1
Negative pole, the pin 1 of the anode of diode D4 and chip IC 3, the positive pole connecting valve S1 of battery E, switch S1's
The other end connects the emitter stage of resistance R12, a fixing end of potentiometer RP2, the anode of diode D2 and triode V1,
The base stage of triode V1 connects the other end and resistance R17, the colelctor electrode tie point R14 of triode V1 and the electricity of resistance R16
The other end of resistance R15, the other end of resistance R14 connects the negative electrode of diode D1, and the other end of resistance R12 connects current potential
Another fixing end of device RP1, the sliding end of potentiometer RP1 connects the pin 2 of chip IC 3, the other end of resistance R13
Connecting another fixing end of potentiometer RP2, the sliding end of potentiometer RP2 connects the pin 6 of chip IC 3, diode D2
Negative electrode connect the other end of electric capacity C3, the other end of electric capacity C4, the pin 3 and MCU control centre of chip IC 3, electricity
The other end of resistance R18 connects the pin 8 of chip IC 3, and the pin 4 of chip IC 3 connects the other end and the diode of electric capacity C2
The negative electrode of D4, the pin 5 of chip IC 3 connects the other end of electric capacity C1, and the pin 7 of chip IC 3 connects diode D3's
Negative electrode, the anode of diode D3 connects the other end of resistance R17, and the model of described chip IC 3 is NE555, chip IC 2
Model be LM7805.
As preferred version of the present utility model: described MCU control centre is using SH79F32 single-chip microcomputer as main core component
Control unit.
As preferred version of the present utility model: described testing circuit includes battery undervoltage testing circuit, system detection of electrical leakage electricity
Road and temperature sensing circuit.
As preferred version of the present utility model: the main core component that described metering circuit is is ADE7755 computation chip.
As preferred version of the present utility model: described power supply U1 is 5V direct current.
As preferred version of the present utility model: described input module is matrix keyboard.
Compared with prior art, the beneficial effects of the utility model are: the utility model ammeter is three rates, 12 period electronics
Formula electric energy meter, has liquid crystal display, uses RS485 interface, uses remote automatic meter reading control etc. i.e. can carry out ammeter respectively
Kind of operation, including check meter, program, school when etc., carry out operations process by SH79F32 single-chip microcomputer, under-voltage to ammeter,
The unfavorable conditions such as electric leakage are fed back in time, and use dual power supply so that this ammeter has that integrated level is high, function is many
Sample, the advantage of stable performance, and substantial amounts of manpower and materials can be saved.
Brief description
Fig. 1 is block diagram of the present utility model；
Fig. 2 is the circuit diagram of communicating circuit；
Fig. 3 is the circuit diagram of power circuit.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out clearly
It Chu, is fully described by, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of making creative work
The every other embodiment being obtained, broadly falls into the scope of the utility model protection.
Refer to Fig. 1-3, a kind of Multifunctional single-phase time-sharing electricity meter, including input module, display screen, MCU control centre,
Metering circuit, testing circuit, communicating circuit and power circuit；Described MCU control centre connects metering circuit, detection respectively
Circuit, communicating circuit, poke device, stand-by circuit, display screen and input module；
Described communicating circuit includes photo-coupler M1, photo-coupler M2, chip IC 1 and interface S, the 1 of photo-coupler M1
Port connects resistance R1, and the other end of resistance R1 connects resistance R2 and MCU control centre, 2 ports of photo-coupler M1
Ground connection, 3 ports of photo-coupler M connect resistance R3, and 4 ports of photo-coupler M1 connect 1 pin of chip IC 1,
The other end of resistance R3 connects resistance R4, the emitter stage of triode VT1 and power supply U1, and the other end of resistance R2 connects light
1 port of coupler M2, the 2 port ground connection of photo-coupler M2,3 ports of photo-coupler M2 connect the another of resistance R4
4 pins of one end, resistance R5 and chip IC 1, the 4 port ground connection of photo-coupler M2, the other end of resistance R5 connects
The base stage of triode VT1, the colelctor electrode of triode VT1 connects the 3 of resistance R6,2 pins of chip IC 1 and chip IC 1
Pin, the other end ground connection of resistance R6,5 pins of chip IC 1 connect electric capacity C1 and power supply U1, another of electric capacity C1
End ground connection, 6 pins of chip IC 1 connect resistance R8, resistance R9 and resistance R10, and 7 pins of chip IC 1 connect electricity
The other end of resistance resistance R7, R10 and resistance R11,8 pin ground connection of chip IC 1, the other end of resistance R7 connects power supply
The other end ground connection of U1, resistance R8, the other end of resistance R9 connects 1 pin of interface S, and the other end of resistance R11 is even
2 pins of connection interface S；
Described power circuit includes triode V1, diode D1, chip IC 3 and chip IC 2, the pin of described chip IC 2
1 connection resistance R15, resistance R16, the anode of resistance R18 diode D1 and power supply VCC, the pin 2 of chip IC 2 is even
Meet fixing end, a battery E of electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, resistance R13, potentiometer RP1
Negative pole, the pin 1 of the anode of diode D4 and chip IC 3, the positive pole connecting valve S1 of battery E, switch S1's
The other end connects the emitter stage of resistance R12, a fixing end of potentiometer RP2, the anode of diode D2 and triode V1,
The base stage of triode V1 connects the other end and resistance R17, the colelctor electrode tie point R14 of triode V1 and the electricity of resistance R16
The other end of resistance R15, the other end of resistance R14 connects the negative electrode of diode D1, and the other end of resistance R12 connects current potential
Another fixing end of device RP1, the sliding end of potentiometer RP1 connects the pin 2 of chip IC 3, the other end of resistance R13
Connecting another fixing end of potentiometer RP2, the sliding end of potentiometer RP2 connects the pin 6 of chip IC 3, diode D2
Negative electrode connect the other end of electric capacity C3, the other end of electric capacity C4, the pin 3 and MCU control centre of chip IC 3, electricity
The other end of resistance R18 connects the pin 8 of chip IC 3, and the pin 4 of chip IC 3 connects the other end and the diode of electric capacity C2
The negative electrode of D4, the pin 5 of chip IC 3 connects the other end of electric capacity C1, and the pin 7 of chip IC 3 connects diode D3's
Negative electrode, the anode of diode D3 connects the other end of resistance R17, and the model of described chip IC 3 is NE555, chip IC 2
Model be LM7805.
MCU control centre is the control unit using SH79F32 single-chip microcomputer as main core component.Testing circuit includes that battery is owed
Pressure testing circuit, system electric-leakage detection circuit and temperature sensing circuit.The main core component that metering circuit is is ADE7755 meter
Amount chip.Power supply U1 is 5V direct current.Input module is matrix keyboard.
Operation principle of the present utility model is: first ammeter accesses electrical network, and power circuit is by the exchange of electrical network input 220V
Power supply, obtains metering circuit power supply, communicating circuit, MCU control centre through step-down, rectification, voltage stabilizing and filtering and is related to
Partial power.Whole power circuit mainly uses voltage stabilizing chip to be designed, thus obtains the DC voltage of 5V；To MCU
And relevant portion power circuit is then after step-down, rectification, powering to each modular circuit of ammeter, SH79F32 single-chip microcomputer is one
Money is used for single-phase multi-rate active duplicate rows liquid crystal electric energy meter and the special microprocessor without external hanging hardware RTC.It has enhancement mode
8051 kernels, comparing 8051 traditional kernels has the faster speed of service；Therefore the control speed of ammeter can be put forward, more
The data of transmission in fast treatment of battery undervoltage detection circuit, system electric-leakage detection circuit, temperature sensing circuit and metering circuit,
And data are formed RS485 communication network by RS485 interface circuit and other electric energy meters, RS communicating circuit receives from list
After the signal of piece machine, by two photo-coupler M, single chip circuit and RS485 bus circuit are isolated, improve system
Antijamming capability, the TVS1 pipe in circuit is connected in parallel on RS485 bus A, B line two ends, carries out transient protective work to circuit
With R32 and R33 is biasing resistor, carries out network failure protection, and in RS485 communicating circuit, S interface is intended to carry out transition
Pulse and electrostatic interference realize remote meter reading and remote control operation, and the unfavorable condition such as, electric leakage under-voltage to ammeter is timely
Feedback, ammeter is provided with stand-by power supply so that this ammeter has integrated level height, diverse in function, stable performance
Advantage, and substantial amounts of manpower and materials can be saved.Resistance R12 in Fig. 3 and potentiometer RP1 is used for detecting storage battery
The lower limit of pressure；R13 and RP2 is used for upper limit of detection value.When cell voltage is less than lower limit, 555 set, inside IC3
Discharge tube cut-off, now, diode D2 no current flows through.R15 is the biasing resistor of triode V1.Triode V1 satisfies
Close conducting. then battery E is charged by the voltage of power supply VCC by resistance R15 and triode V1.When on battery E voltage
When being raised to the higher limit setting, when i.e. 6 pin current potentials of chip IC 3 are higher than its threshold level, chip IC 3 resets, in IC3
The discharge tube in portion is in the conduction state, and triode V1 ends.Charging stops.When accidental power failure, 3 pin of chip IC 2
When voltage is dropped to about 4.8V by+5V.Diode D2 turns on, and battery E passes through D2, powers control centre, protects
Testimony electricity is uninterrupted.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the present utility model, the utility model can be realized in other specific forms.
Therefore, no matter from the point of view of which point, all should regard embodiment as exemplary, and be nonrestrictive, this practicality is new
The scope of type is limited by claims rather than described above, it is intended that the containing of equivalency that will fall in claim
All changes in justice and scope are included in the utility model.Any reference in claim should be considered as limiting
Involved claim.
Although moreover, it will be appreciated that this specification is been described by according to embodiment, but not each embodiment only comprises
One independent technical scheme, this narrating mode of specification is only for clarity sake, and those skilled in the art should be by
Specification is as an entirety, and the technical scheme in each embodiment also can be through appropriately combined, and forming those skilled in the art can
With other embodiments understanding.
Claims (6)
1. a Multifunctional single-phase time-sharing electricity meter, including input module, display screen, MCU control centre, metering circuit,
Testing circuit, communicating circuit and power circuit；It is characterized in that, described MCU control centre connects metering circuit, inspection respectively
Slowdown monitoring circuit, communicating circuit, poke device, stand-by circuit, display screen and input module；
Described communicating circuit includes photo-coupler M1, photo-coupler M2, chip IC 1 and interface S, the 1 of photo-coupler M1
Port connects resistance R1, and the other end of resistance R1 connects resistance R2 and MCU control centre, 2 ports of photo-coupler M1
Ground connection, 3 ports of photo-coupler M connect resistance R3, and 4 ports of photo-coupler M1 connect 1 pin of chip IC 1,
The other end of resistance R3 connects resistance R4, the emitter stage of triode VT1 and power supply U1, and the other end of resistance R2 connects light
1 port of coupler M2, the 2 port ground connection of photo-coupler M2,3 ports of photo-coupler M2 connect the another of resistance R4
4 pins of one end, resistance R5 and chip IC 1, the 4 port ground connection of photo-coupler M2, the other end of resistance R5 connects
The base stage of triode VT1, the colelctor electrode of triode VT1 connects the 3 of resistance R6,2 pins of chip IC 1 and chip IC 1
Pin, the other end ground connection of resistance R6,5 pins of chip IC 1 connect electric capacity C1 and power supply U1, another of electric capacity C1
End ground connection, 6 pins of chip IC 1 connect resistance R8, resistance R9 and resistance R10, and 7 pins of chip IC 1 connect electricity
The other end of resistance resistance R7, R10 and resistance R11,8 pin ground connection of chip IC 1, the other end of resistance R7 connects power supply
The other end ground connection of U1, resistance R8, the other end of resistance R9 connects 1 pin of interface S, and the other end of resistance R11 is even
2 pins of connection interface S, the model of described chip IC 1 is MAX3085, and the model of described interface S is RS485；
Described power circuit includes triode V1, diode D1, chip IC 3 and chip IC 2, the pin of described chip IC 2
1 connection resistance R15, resistance R16, the anode of resistance R18 diode D1 and power supply VCC, the pin 2 of chip IC 2 is even
Meet fixing end, a battery E of electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, resistance R13, potentiometer RP1
Negative pole, the pin 1 of the anode of diode D4 and chip IC 3, the positive pole connecting valve S1 of battery E, switch S1's
The other end connects the emitter stage of resistance R12, a fixing end of potentiometer RP2, the anode of diode D2 and triode V1,
The base stage of triode V1 connects the other end and resistance R17, the colelctor electrode tie point R14 of triode V1 and the electricity of resistance R16
The other end of resistance R15, the other end of resistance R14 connects the negative electrode of diode D1, and the other end of resistance R12 connects current potential
Another fixing end of device RP1, the sliding end of potentiometer RP1 connects the pin 2 of chip IC 3, the other end of resistance R13
Connecting another fixing end of potentiometer RP2, the sliding end of potentiometer RP2 connects the pin 6 of chip IC 3, diode D2
Negative electrode connect the other end of electric capacity C3, the other end of electric capacity C4, the pin 3 and MCU control centre of chip IC 3, electricity
The other end of resistance R18 connects the pin 8 of chip IC 3, and the pin 4 of chip IC 3 connects the other end and the diode of electric capacity C2
The negative electrode of D4, the pin 5 of chip IC 3 connects the other end of electric capacity C1, and the pin 7 of chip IC 3 connects diode D3's
Negative electrode, the anode of diode D3 connects the other end of resistance R17, and the model of described chip IC 3 is NE555, chip IC 2
Model be LM7805.
2. a kind of Multifunctional single-phase time-sharing electricity meter according to claim 1, it is characterised in that in described MCU control
The heart is the control unit using SH79F32 single-chip microcomputer as main core component.
3. a kind of Multifunctional single-phase time-sharing electricity meter according to claim 1, it is characterised in that described testing circuit bag
Include battery undervoltage testing circuit, system electric-leakage detection circuit and temperature sensing circuit.
4. a kind of Multifunctional single-phase time-sharing electricity meter according to claim 1, it is characterised in that described metering circuit is
Main core component be ADE7755 computation chip.
5. a kind of Multifunctional single-phase time-sharing electricity meter according to claim 1, it is characterised in that described power supply U1 is
5V direct current.
6. a kind of Multifunctional single-phase time-sharing electricity meter according to claim 1, it is characterised in that described input module is
Matrix keyboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620394790.0U CN205620468U (en) | 2016-05-04 | 2016-05-04 | Multi -functional single -phase compound rate ammeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620394790.0U CN205620468U (en) | 2016-05-04 | 2016-05-04 | Multi -functional single -phase compound rate ammeter |
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| Publication Number | Publication Date |
|---|---|
| CN205620468U true CN205620468U (en) | 2016-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620394790.0U Expired - Fee Related CN205620468U (en) | 2016-05-04 | 2016-05-04 | Multi -functional single -phase compound rate ammeter |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105866533A (en) * | 2016-05-04 | 2016-08-17 | 宁波澳瑞杰电力科技有限公司 | Multifunctional single-phase multi-rate electricity meter |
-
2016
- 2016-05-04 CN CN201620394790.0U patent/CN205620468U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105866533A (en) * | 2016-05-04 | 2016-08-17 | 宁波澳瑞杰电力科技有限公司 | Multifunctional single-phase multi-rate electricity meter |
| CN105866533B (en) * | 2016-05-04 | 2018-11-30 | 宁波澳瑞杰电力科技有限公司 | A kind of Multifunctional single-phase time-sharing electricity meter |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161005 Termination date: 20180504 |
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| CF01 | Termination of patent right due to non-payment of annual fee |