CN209446758U - Intelligent electric energy meter - Google Patents
Intelligent electric energy meter Download PDFInfo
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- CN209446758U CN209446758U CN201920070943.XU CN201920070943U CN209446758U CN 209446758 U CN209446758 U CN 209446758U CN 201920070943 U CN201920070943 U CN 201920070943U CN 209446758 U CN209446758 U CN 209446758U
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- electric energy
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- microprocessor
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Abstract
The utility model discloses a kind of intelligent electric energy meters, it includes standard source, metering device and microprocessor, and standard source is used for output rated voltage and rated current；Metering device is used to acquire the analog voltage signal of the voltage rating of standard source and the analog current signal of rated current, and the analog voltage signal of standard source and analog current signal are converted to the pulse signal of standard source；The microprocessor is connect with the metering device signal, so that microprocessor is according to the metering electric energy of the pulse signal of standard source calculating standard source, and calculates error current according to the metering electric energy of standard source and the theoretical electric energy of standard source.The utility model can self-test error at the scene, it is convenient and efficient.
Description
Technical field
The utility model relates to a kind of intelligent electric energy meters.
Background technique
Currently, electric energy meter is suspended to live operation after error is identified, in later period operational process, error not can guarantee length
Phase stablizes, and needs detection error again, can only tear back laboratory progress metering test open, and working efficiency is low, and it is cumbersome to tear surface low journey open,
Influence working efficiency.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the deficiencies of existing technologies, and provides a kind of intelligent electric energy meter,
It can self-test error at the scene, it is convenient and efficient.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is: a kind of intelligent electric energy meter, it includes:
Standard source is used for output rated voltage and rated current；
Metering device, for acquiring the analog voltage signal of the voltage rating of standard source and the analog current letter of rated current
Number, and the analog voltage signal of standard source and analog current signal are converted to the pulse signal of standard source；
Microprocessor, the microprocessor are connect with the metering device signal, so that microprocessor is according to standard source
Pulse signal calculates the metering electric energy of standard source, and calculates and work as according to the metering electric energy of standard source and the theoretical electric energy of standard source
Preceding error.
Further, the metering device is also used to acquire the analog voltage signal and analog current signal of power grid, and will be electric
The analog voltage signal and analog current signal of net are converted to the pulse signal of power grid；The microprocessor is also used to according to power grid
Pulse signal calculate power grid electric energy.
Further for display error current is facilitated, intelligent electric energy meter further includes display module, the display module with it is micro-
Processor signal connection shows error current will pass through microprocessor control display module.
Further, the display module is display screen.
Further for the convenient live operating condition by intelligent terminal understanding intelligent electric energy meter to promote working efficiency,
The microprocessor is connect with extraneous intelligent terminal, so that error current is transmitted to intelligent terminal by microprocessor.
Further, the metering device includes:
Voltage sample mutual inductor, for acquiring analog voltage signal；
Current sampling mutual inductor, the analog current signal for acquisition；
A/D converter is connect with voltage sample mutual inductor and current sampling mutual inductor signal respectively, is used for analog voltage
Signal is converted to digital voltage signal, and analog current signal is converted to digital current signal；
Digital signal processor is connect with A/D converter and microprocessor signals respectively, is used for digital voltage signal
It is handled with digital current signal to obtain pulse signal, and pulse signal is sent to microprocessor.
Further, the standard source is mounted in the metering chip of metering device.
Further, intelligent electric energy meter further includes electric energy meter casing, and standard source, metering device and microprocessor are installed in electricity
In energy watch shell, display screen is mounted on electric energy meter casing.
After above-mentioned technical proposal, increase standard source in the metering chip of intelligent electric energy meter, in intelligent electric energy meter
During self-test error, standard source output rated voltage and electric current, metering device acquire standard source analog voltage signal and
Analog current signal is ultimately converted to output of pulse signal, and microprocessor accumulated pulse number calculates the metering electric energy of standard source,
And compared with the theoretical electric energy of standard source, error current is calculated, then completes the error self-test to intelligent electric energy meter, error current can
To show on a display screen, it can also be transmitted to intelligent terminal, to facilitate people to understand the live operating condition of intelligent electric meter, exempted from
It has gone to tear intelligent electric energy meter into back the trouble that laboratory carries out metering test open, live self-test improves the efficiency of error self-test, side
Just quick, but also intelligent electric energy meter is used for plurality of application scenes.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the intelligent electric energy meter of the utility model.
Specific embodiment
In order to make the content of the utility model be easier to be clearly understood, below according to specific embodiment and combine attached
Figure, is described in further detail the utility model.
As shown in Figure 1, a kind of intelligent electric energy meter, it includes:
Standard source is used for output rated voltage and rated current；
Metering device, for acquiring the analog voltage signal of the voltage rating of standard source and the analog current letter of rated current
Number, and the analog voltage signal of standard source and analog current signal are converted to the pulse signal of standard source；
Microprocessor, the microprocessor are connect with the metering device signal, so that microprocessor is according to standard source
Pulse signal calculates the metering electric energy of standard source, and calculates and work as according to the metering electric energy of standard source and the theoretical electric energy of standard source
Preceding error.In the present embodiment, the metering device is also used to acquire the analog voltage signal and analog current signal of power grid, and
The analog voltage signal of power grid and analog current signal are converted to the pulse signal of power grid；The microprocessor is also used to basis
The pulse signal of power grid calculates the electric energy of power grid.The standard source is mounted in the metering chip of metering device.Specifically, described
Metering chip is the sharp micro- RN2025/RN2026 of energy, but not limited to this.During intelligent electric energy meter works normally, metering dress
The analog voltage signal and analog current signal of acquisition power grid are set, and by the analog voltage signal and analog current of the power grid of acquisition
Signal is converted to pulse signal, and microprocessor adds up the pulse signal of power grid, then calculates the electric energy of user power utilization.In intelligent electricity
During table self-test error, metering device acquires the analog voltage signal and analog current signal of standard source.In the present embodiment
In, microprocessor is the prior art, is not described in detail.
As shown in Figure 1, showing error current for convenience, intelligent electric energy meter further includes display module, the display module
It is connect with microprocessor signals, shows error current will pass through microprocessor control display module.In the present embodiment, described
Display module is display screen, can select liquid crystal display, but not limited to this.Intelligent electric energy meter further includes electric energy meter casing, mark
Quasi- source, metering device and microprocessor are installed in electric energy meter case body, and display screen is mounted on electric energy meter casing.
As shown in Figure 1, understanding the live operating condition of intelligent electric energy meter by intelligent terminal for convenience to promote work
Efficiency, the microprocessor is connect with extraneous intelligent terminal, so that error current is transmitted to intelligent terminal by microprocessor.Tool
Body, the intelligent terminal in microprocessor and the external world can select the mode of wireless connection.
As shown in Figure 1, the metering device includes:
Voltage sample mutual inductor, for acquiring the analog voltage signal of power grid；
Current sampling mutual inductor, for acquiring the analog current signal of power grid, specifically, voltage sample mutual inductor and electric current
Sampling mutual inductor acquires the analog voltage signal and analog current signal of power grid or standard source simultaneously；
A/D converter is connect with voltage sample mutual inductor and current sampling mutual inductor signal respectively, is used for analog voltage
Signal is converted to digital voltage signal, and analog current signal is converted to digital current signal；
Digital signal processor is connect with A/D converter and microprocessor signals respectively, is used for digital voltage signal
It is handled with digital current signal to obtain pulse signal, and pulse signal is sent to microprocessor.In the present embodiment,
Digital signal processor is the prior art, is not described in detail.
The working principle of the utility model is as follows:
Increase standard source in the metering chip of intelligent electric energy meter, during intelligent electric energy meter self-test error, standard
Source output rated voltage and electric current, metering device acquires the analog voltage signal and analog current signal of standard source, final to convert
At output of pulse signal, microprocessor accumulated pulse number calculates the metering electric energy of standard source, and the theoretical electric energy with standard source
Comparison calculates error current, then completes the error self-test to intelligent electric energy meter, and error current can be shown on a display screen,
It can be transmitted to intelligent terminal, to facilitate people to understand the live operating condition of intelligent electric meter, eliminate and tear intelligent electric energy meter open
The trouble that laboratory carries out metering test is returned, live self-test improves the efficiency of error self-test, and it is convenient and efficient, but also intelligence
Electric energy meter is used for plurality of application scenes.
Particular embodiments described above, to the utility model solve the technical issues of, technical scheme and beneficial effects into
It has gone further description, it should be understood that the foregoing is merely specific embodiment of the utility model, and has not had to
In limitation the utility model, within the spirit and principle of the utility model, any modification, equivalent substitution and improvement done
Deng should be included within the scope of protection of this utility model.
Claims (8)
1. a kind of intelligent electric energy meter, which is characterized in that it includes:
Standard source is used for output rated voltage and rated current；
Metering device, for acquiring the analog voltage signal of the voltage rating of standard source and the analog current signal of rated current,
And the analog voltage signal of standard source and analog current signal are converted to the pulse signal of standard source；
Microprocessor, the microprocessor are connect with the metering device signal, so that microprocessor is according to the pulse of standard source
Signal calculates the metering electric energy of standard source, and calculates current mistake according to the metering electric energy of standard source and the theoretical electric energy of standard source
Difference.
2. intelligent electric energy meter according to claim 1, it is characterised in that: the metering device is also used to acquire the mould of power grid
Intend voltage signal and analog current signal, and the analog voltage signal of power grid and analog current signal are converted to the pulse of power grid
Signal；The microprocessor is also used to calculate the electric energy of power grid according to the pulse signal of power grid.
3. intelligent electric energy meter according to claim 1, it is characterised in that: further include display module, the display module with
Microprocessor signals connection shows error current will pass through microprocessor control display module.
4. intelligent electric energy meter according to claim 3, it is characterised in that: the display module is display screen.
5. intelligent electric energy meter according to claim 1, it is characterised in that: the microprocessor and extraneous intelligent terminal connect
It connects, so that error current is transmitted to intelligent terminal by microprocessor.
6. intelligent electric energy meter according to claim 1, it is characterised in that: the metering device includes:
Voltage sample mutual inductor, for acquiring analog voltage signal；
Current sampling mutual inductor, for acquiring analog current signal；
A/D converter is connect with voltage sample mutual inductor and current sampling mutual inductor signal respectively, is used for analog voltage signal
Digital voltage signal is converted to, and analog current signal is converted into digital current signal；
Digital signal processor is connect with A/D converter and microprocessor signals respectively, is used for digital voltage signal sum number
Word current signal is handled to obtain pulse signal, and pulse signal is sent to microprocessor.
7. intelligent electric energy meter according to claim 1, it is characterised in that: the standard source is mounted on the meter of metering device
It measures on chip.
8. intelligent electric energy meter according to claim 4, it is characterised in that: further include electric energy meter casing, standard source, metering dress
It sets and is installed in electric energy meter case body with microprocessor, display screen is mounted on electric energy meter casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920070943.XU CN209446758U (en) | 2019-01-16 | 2019-01-16 | Intelligent electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920070943.XU CN209446758U (en) | 2019-01-16 | 2019-01-16 | Intelligent electric energy meter |
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| CN209446758U true CN209446758U (en) | 2019-09-27 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110703182A (en) * | 2019-11-08 | 2020-01-17 | 南京沁恒微电子股份有限公司 | Wireless intelligent electric energy meter and production line calibration implementation method thereof |
| CN111413660A (en) * | 2020-04-29 | 2020-07-14 | 云南电网有限责任公司电力科学研究院 | Method and system for testing error self-detection function of electric energy meter |
-
2019
- 2019-01-16 CN CN201920070943.XU patent/CN209446758U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110703182A (en) * | 2019-11-08 | 2020-01-17 | 南京沁恒微电子股份有限公司 | Wireless intelligent electric energy meter and production line calibration implementation method thereof |
| CN111413660A (en) * | 2020-04-29 | 2020-07-14 | 云南电网有限责任公司电力科学研究院 | Method and system for testing error self-detection function of electric energy meter |
| CN111413660B (en) * | 2020-04-29 | 2022-09-02 | 云南电网有限责任公司电力科学研究院 | Method and system for testing error self-detection function of electric energy meter |
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