CN206411253U - A kind of quick somascope of intelligent electric meter checked based on electric current - Google Patents
A kind of quick somascope of intelligent electric meter checked based on electric current Download PDFInfo
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- CN206411253U CN206411253U CN201720002215.6U CN201720002215U CN206411253U CN 206411253 U CN206411253 U CN 206411253U CN 201720002215 U CN201720002215 U CN 201720002215U CN 206411253 U CN206411253 U CN 206411253U
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- 238000005259 measurement Methods 0.000 claims abstract description 24
- 238000004891 communication Methods 0.000 claims abstract description 18
- 238000012545 processing Methods 0.000 claims abstract description 18
- 230000003993 interaction Effects 0.000 claims abstract description 13
- 238000012360 testing method Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000012937 correction Methods 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 8
- 101100236764 Caenorhabditis elegans mcu-1 gene Proteins 0.000 description 5
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- 238000006243 chemical reaction Methods 0.000 description 1
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Abstract
The utility model discloses a kind of quick somascope of intelligent electric meter checked based on electric current, including central processing unit, measurement data acquisition circuit unit, forcipated mutual-inductor, infrared communication unit, power supply unit and man-machine interaction unit；The forcipated mutual-inductor is connected with measurement data acquisition circuit unit, and the measurement data acquisition unit, power supply unit, infrared communication unit and man-machine interaction unit are connected with the central processing unit.The utility model is simple in construction, forcipated mutual-inductor detection intelligent electric meter front end current practice is convenient, testing result is accurate, quick rough check and correction can be not only carried out to the measurement accuracy of intelligent electric meter, and be also the instrument of opposing electricity-stealing of a practicality and high efficiency, power utility check work to power supply enterprise provides great convenience, there is larger promotion and application value.
Description
Technical field
The utility model is related to power domain, more particularly to a kind of quick somascope of intelligent electric meter checked based on electric current.
Background technology
In recent years, going deep into electric network reconstruction, intelligent electric meter progressively replaces mechanical electric meter and ordinary electronic formula electricity
Table is spent, some Electricity customers reflection intelligent electric meter is had good luck faster than tool formula kilowatt-hour meter and ordinary electronic formula kilowatt-hour meter, to Electricity Department
The metering device of door produce it is a variety of suspect, or even with intelligent electric meter have good luck it is too fast be by refusing to pay tariff, to electric power enterprise image and
Tariff recovery work makes a big impact.Moreover, the client's electricity stealing of some local electricities remains incessant after repeated prohibition, criminal utilizes city
The characteristics of conventional wireless remote control transceiver module and pulse module are inexpensively easily purchased on face, by opening and copying ammeter seal, in electricity
Table current loop installs remote control reception module or pulse module, by controlling the break-make of intelligent electric meter measurement loop to realize stealing.
Because the device volume it is small, it is disguised it is strong, can control to reset at any time, power utility check is difficult to find, gives power department to investigate and prosecute tax evasion electricity
Larger difficulty is brought, so as to cause the loss of state-owned assets.
Electric work amount is generally used as Testing index to the on-line checking of intelligent electric meter in the prior art, and when measuring electric work
Required workload is big, and when measuring voltage in intelligent electric meter front end, wiring is complicated, and time-consuming.
The content of the invention
The utility model provides a kind of quick somascope of intelligent electric meter checked based on electric current, it is intended that in order to
Overcome the problem of operating condition of intelligent electric meter in the prior art detects complex operation, takes longer.
A kind of quick somascope of intelligent electric meter checked based on electric current, including central processing unit, measurement data acquisition circuit
Unit, forcipated mutual-inductor, infrared communication unit, power supply unit and man-machine interaction unit；
The forcipated mutual-inductor is connected with measurement data acquisition circuit unit, the measurement data acquisition unit, infrared logical
News unit, power supply unit and man-machine interaction unit are connected with the central processing unit.
Current value as measured by infrared communication unit directly reads intelligent electric meter and measure intelligence using forcipated mutual-inductor
Can the current value of ammeter front end be compared, judge intelligent electric meter whether normal operation.
Further, in addition to central processing unit the alarm unit being connected.
Further, the man-machine interaction unit is touch display screen.
Further, the central processing unit uses STC12C56 chips.
Further, the measurement data acquisition circuit unit uses ATT7053BU chips.
Further, the alarm unit is buzzer.
Beneficial effect
The utility model provide it is a kind of based on electric current check the quick somascope of intelligent electric meter, including central processing unit,
Measurement data acquisition circuit unit, forcipated mutual-inductor, infrared communication unit, power supply unit and man-machine interaction unit；The pincers
Shape transformer is connected with measurement data acquisition circuit unit, the measurement data acquisition unit, power supply unit, infrared communication unit
And man-machine interaction unit is connected with the central processing unit.The utility model is simple in construction, forcipated mutual-inductor detection intelligence
Ammeter front end current practice is convenient, and testing result is accurate, and quick rough school can be not only carried out to the measurement accuracy of intelligent electric meter
It is right, and be also the instrument of opposing electricity-stealing of a practicality and high efficiency, the power utility check work to power supply enterprise provides great convenience, has
Larger promotion and application value.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is measurement data acquisition circuit map interlinking；
Fig. 3 is infrared communication unit circuit diagram.
Embodiment
The utility model is described further below in conjunction with drawings and examples.
As shown in figure 1, a kind of quick somascope of intelligent electric meter checked based on electric current, including central processing unit, stoichiometric number
According to Acquisition Circuit unit, forcipated mutual-inductor, infrared communication unit, power supply unit and man-machine interaction unit；
The forcipated mutual-inductor is connected with measurement data acquisition circuit unit, and the measurement data acquisition unit, power supply are single
Member, infrared communication unit and man-machine interaction unit are connected with the central processing unit.
Current value as measured by infrared communication unit directly reads intelligent electric meter and measure intelligence using forcipated mutual-inductor
Can the current value of ammeter front end be compared, judge intelligent electric meter whether normal operation.
Also include the alarm unit being connected with central processing unit.
The man-machine interaction unit is touch display screen.
The central processing unit uses STC12C56 chips.
The measurement data acquisition circuit unit uses ATT7053BU chips.
The alarm unit is buzzer.
Measurement data acquisition circuit uses ATT7053BU, and it is a band SPI, the single-phase multifunctional of UART communication interfaces
Computation chip (EMU), with three road 19bit sigma-delta ADC；The wattful power of two-way measurement channel can be obtained simultaneously
Rate, reactive power, support active and reactive, apparent energy and electrical energy pulse output；Support SPI or serial ports (UART) communication modes
The features such as.In design, MCU1 UART PORT COMs are used during infrared acquisition signal because obtaining, therefore by IC1 (ATT7053BU)
14th pin of chip is drawn high, and has used IC1 SPI communication functions to obtain the current parameters of forcipated mutual-inductor.
The wiring diagram of measurement data acquisition circuit unit is as shown in Fig. 2 the electric current from forcipated mutual-inductor is passed through from J1 inputs
R4, D1, D2, R5~R8 amplitude limits, the electric current that C7, C8 filtering enter IC1 input 10 pins (I1P) and 11 pins (I1N).Measure people
Member inputs corresponding operating on keyboard and instructed to the MUC1 in this instrument.MCU1 sends corresponding transmitting-receiving instruction：On the one hand, from pincers
The current signal of shape transformer collection is transferred to IC1 by 19 pins (SPI_DI/RX) and 20 pins (SPI_DO/TX) and carries out AD
The processing such as sampling, gain control, storage, are imported in MCU1 by SPI, and on the other hand, MCU1 sends ammeter electric current and reads instruction,
The current parameters that current ammeter internal measurement mechanism is used are obtained by infrared probe component, also entered in UART modes into MCU1
Row mixed processing, result is finally shown and send alarm sound on liquid crystal display.
Infrared communication unit circuit is as shown in figure 3, using one piece of two-four nor gate digital circuit (SN74HC02D), mix
The Transistor-Transistor Logic level that a small amount of peripheral cell completes needed for intelligent electric meter is communicated with single-chip microcomputer UART is changed, i.e., the reception of infrared signal with
Send.After upper electricity, U1A and Y1, C1, C2, R1, the 38KHZ oscillating circuits generation 38KHZ of R2 compositions modulated signal are anti-through U1B
To amplification, U1C 8 pin are delivered to；The infrared pulse (TXD ports) that main control singlechip is sent is sent to U1C 9 pin all the way, with U1C's
Export, sent through R6 current limlitings, Q1 amplifications through infrared transmitting tube D1 from U1C 10 pin after 8 pin hybrid modulations.Another road is infrared
Pulse is sent on U1D 11 pin (it is invalid that 12 pin connect low level), reversely flashes indicator lamp D2 after amplification, shows the height of signal
Change.
Electric energy meter is received in compliance with after the pulse signal of DT/L-2007 agreements, sends answer signal, through infrared receiving terminal U2
(HS0038) receive and modulation conversion is into TTL pulse signal, isolate through D3, be coupled to RXD ports, pass through main control singlechip
UART communications are received, and carry out a series of processing, finally obtain the parameters of electric energy meter.
Current measurement current value I1 inside intelligent electric meter is obtained by the infrared communication device on main frame, while before ammeter
Terminate into forcipated mutual-inductor, measure and flow into real-time current the value I2, I1 and I2 of the ammeter and turned by the A/D of single-chip microcomputer in main frame
Change, measure, comparing etc. that function is quick, the accurate error amount for calculating I1 and I2, and showing on the LCD display of this monitor
Show.When calculation error absolute value is more than 10%, buzzer sends alarm in main frame, points out the intelligent electric meter work currently tested
Make abnormal (having metering to be forbidden or have stealing suspicion).
Claims (6)
1. a kind of quick somascope of intelligent electric meter checked based on electric current, it is characterised in that including central processing unit, continuous data
Collecting unit, forcipated mutual-inductor, infrared communication unit, power supply unit and man-machine interaction unit；
The forcipated mutual-inductor is connected with measurement data acquisition circuit unit, the measurement data acquisition unit, infrared communication list
Member, power supply unit and man-machine interaction unit are connected with the central processing unit.
2. it is according to claim 1 based on electric current check the quick somascope of intelligent electric meter, it is characterised in that also including with
The connected alarm unit of central processing unit.
3. the intelligent electric meter quick somascope according to claim 1 or 2 checked based on electric current, it is characterised in that described
Man-machine interaction unit is touch display screen.
4. the intelligent electric meter quick somascope according to claim 3 checked based on electric current, it is characterised in that the center
Processor uses STC12C56 chips.
5. the intelligent electric meter quick somascope according to claim 3 checked based on electric current, it is characterised in that the metering
Data acquisition circuit unit uses ATT7053BU chips.
6. the intelligent electric meter quick somascope according to claim 2 checked based on electric current, it is characterised in that the alarm
Unit is buzzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720002215.6U CN206411253U (en) | 2017-01-03 | 2017-01-03 | A kind of quick somascope of intelligent electric meter checked based on electric current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720002215.6U CN206411253U (en) | 2017-01-03 | 2017-01-03 | A kind of quick somascope of intelligent electric meter checked based on electric current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206411253U true CN206411253U (en) | 2017-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720002215.6U Active CN206411253U (en) | 2017-01-03 | 2017-01-03 | A kind of quick somascope of intelligent electric meter checked based on electric current |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108109363A (en) * | 2018-01-31 | 2018-06-01 | 深圳市锦熹科技有限公司 | Check instrument and application method in a kind of intelligent electric meter scene based on infrared communication |
| CN109581019A (en) * | 2018-12-06 | 2019-04-05 | 安徽凯川电力保护设备有限公司 | A kind of current collection circuit mixing instrument |
-
2017
- 2017-01-03 CN CN201720002215.6U patent/CN206411253U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108109363A (en) * | 2018-01-31 | 2018-06-01 | 深圳市锦熹科技有限公司 | Check instrument and application method in a kind of intelligent electric meter scene based on infrared communication |
| CN109581019A (en) * | 2018-12-06 | 2019-04-05 | 安徽凯川电力保护设备有限公司 | A kind of current collection circuit mixing instrument |
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