CN205749863U - A kind of electric energy meter detector - Google Patents
A kind of electric energy meter detector Download PDFInfo
- Publication number
- CN205749863U CN205749863U CN201620430926.9U CN201620430926U CN205749863U CN 205749863 U CN205749863 U CN 205749863U CN 201620430926 U CN201620430926 U CN 201620430926U CN 205749863 U CN205749863 U CN 205749863U
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- data communication
- electric energy
- digital signal
- energy meter
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Abstract
This utility model relates to a kind of electric energy meter detector, including analog input channel, sampling hold circuit, A/D converter, digital signal processor, ARM and peripheral components thereof and bluetooth communication module；Analog input channel is connected with sampling hold circuit data communication, and sampling hold circuit is connected with A/D converter data communication, and A/D converter is connected with digital signal processor data communication, and digital signal processor is connected with ARM and peripheral components data communication thereof；ARM and peripheral components thereof are connected with bluetooth communication module data communication.This electric energy meter detector can be transferred to detection data in other equipment corresponding by bluetooth communication.
Description
Technical field
This utility model belongs to Power Quality Detection technical field, particularly to a kind of electric energy meter detector realizing detecting bluetooth data communication.
Background technology
In the last few years, along with domestic electrical demand and the expansion of electrical network scale, electric pressure constantly promotes, Large Copacity, voltage levels user are on the increase, simultaneously along with tou power price and the implementation of step price, the accuracy of electric energy metrical and reliability have become the focus of social concerns, the most in time, effectively carry out the work of electric energy meter periodic check and have great importance.
Traditional electric energy meter detector information is the slowest, information record and transmit error-prone, cannot realize metering device Site Detection situation is the most accurately monitored, it is difficult to meet metering lean regulatory requirement, the mobile operation technique of urgent needs modernization carries out the standardized works such as the field test of electric energy meter, troubleshooting, it is ensured that it is safe and reliable that accurate, the unified and electric power meter of electric energy metrical value runs.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of electric energy meter detector realizing detecting bluetooth data communication, and this electric energy meter detector can be transferred to detection data in other equipment corresponding by bluetooth communication.
The technical scheme realizing this utility model purpose is to provide a kind of electric energy meter detector, including analog input channel, sampling hold circuit, A/D converter, digital signal processor, ARM and peripheral components thereof and bluetooth communication module；
Analog input channel is connected with sampling hold circuit data communication, and sampling hold circuit is connected with A/D converter data communication, and A/D converter is connected with digital signal processor data communication, and digital signal processor is connected with ARM and peripheral components data communication thereof；ARM and peripheral components thereof are connected with bluetooth communication module data communication.
Further, analog input channel is used for accessing three-phase voltage or single-phase voltage, obtains ammeter data from electric energy meter and is sampled to A/D converter through electric resistance partial pressure.
Further, analog input channel is provided with the detector data-in port obtaining ammeter data for electric energy meter.
Further, sampling hold circuit is made up of filter circuit, forward and reverse amplifying circuit, comparator circuit and A/D convertor circuit.Sampling hold circuit, for carrying out sampling period at A/D converter, keeps constant by converted input signal.
Further, A/D converter is made up of dsp chip and the programmable logic device (CPLD) for Digital Signal Processing, and dsp chip and programmable logic device (CPLD) realize parameter sampling and computing.
Further, digital signal processor is the processor for completing signal processing tasks of IC chip composition.
Further, the central processing unit ARM in ARM and peripheral components thereof is for carrying out later stage process to the result of digital signal processor, it is achieved human computer conversation, data storage, function handoff functionality.
Further, bluetooth communication module is for carrying out communication transfer by detection data and external equipment.
Further, above-mentioned electric energy meter detector also includes display, and display uses the 26k true color giant-screen of 640 × 480 resolution.Display is connected with ARM and peripheral components data communication thereof and receives data that ARM and peripheral components thereof send and show.
This utility model has positive effect: a kind of electric energy meter detector of the present utility model possesses the function measuring electric energy meter error, can be used for carrying out wiring check；And possess and carry out vector analysis, display vector figure, the functions such as identification circuit is separate；All detection data can be transmitted by bluetooth communication, and Site Detection is very easy to use.
Accompanying drawing explanation
Fig. 1 is the structural representation of electric energy meter detector of the present utility model；
Fig. 2 is the workflow diagram of A/D converter；
Fig. 3 is the electrical schematic diagram of digital signal processor.
Detailed description of the invention
(embodiment 1)
See Fig. 1, the electric energy meter detector of the present embodiment is made up of analog input channel, sampling hold circuit, A/D converter, digital signal processor, ARM and peripheral components thereof and bluetooth communication module: analog input channel is connected with sampling hold circuit data communication, sampling hold circuit is connected with A/D converter data communication, A/D converter is connected with digital signal processor data communication, and digital signal processor is connected with ARM and peripheral components data communication thereof；ARM and peripheral components thereof are connected with bluetooth communication module data communication, and analog input channel is provided with detector data-in port, and bluetooth communication module receives request and the external equipment bluetooth data communication of external equipment.
Analog input channel is used for accessing three-phase voltage or single-phase voltage, obtains ammeter data from electric energy meter and is sampled to A/D converter through electric resistance partial pressure.
Sampling hold circuit is made up of filter circuit, forward and reverse amplifying circuit, comparator circuit and A/D convertor circuit.Sampling hold circuit, for carrying out sampling period at A/D converter, keeps constant by converted input signal.
Seeing Fig. 2, A/D converter is made up of dsp chip and the programmable logic device (CPLD) for Digital Signal Processing, and dsp chip and programmable logic device (CPLD) realize parameter sampling and complicated computing.
See that Fig. 3, digital signal processor are extensive or the processor for completing signal processing tasks of VLSI chip composition.
Central processing unit ARM in ARM and peripheral components thereof is for carrying out later stage process to the result of digital signal processor, it is achieved the functions such as human computer conversation, data storage, function switching.
Bluetooth communication module is for carrying out communication transfer by detection data and external equipment.
The electric energy meter detector of the present embodiment also includes display, and display uses the 26k true color giant-screen of 640 × 480 resolution, and background colour is adjustable to adapt to varying environment.Display is connected with ARM and peripheral components data communication thereof and receives data that ARM and peripheral components thereof send and show.
When the electric energy meter detector of the present embodiment uses, convert by three-phase voltage, three-phase current (comprising split-core type meter to input) respectively through electric resistance partial pressure, current transformer and after the switching of programme-controlled gain range, be converted to the AC signal of suitable ADC input requirements；Data acquisition electric current is under the frequency multiplication phase lock circuitry and FPGA control of digital signal processor, with accurate sequential, carry out synchronizing uniform sampling complete cycle and be converted to digital signal to send into digital signal processor to 6 road alternating voltages, current signal by the sampling rates of weekly 128 times；The digitized AC signal collected is analyzed by digital signal processor according to specific numerical algorithm, computing and process, obtains the measured value of various electric parameter and exports and shown by display or pass to external equipment by bluetooth communication module.
Obviously, above-described embodiment is only for clearly demonstrating this utility model example, and is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also cannot all of embodiment be given exhaustive.And these belong to obvious change or variation that spirit of the present utility model extended out still in protection domain of the present utility model among.
Claims (1)
1. an electric energy meter detector, it is characterised in that: include analog input channel, sampling hold circuit, A/D converter, digital signal processor, ARM and peripheral components thereof and bluetooth communication module；
Analog input channel is connected with sampling hold circuit data communication, and sampling hold circuit is connected with A/D converter data communication, and A/D converter is connected with digital signal processor data communication, and digital signal processor is connected with ARM and peripheral components data communication thereof；ARM and peripheral components thereof are connected with bluetooth communication module data communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620430926.9U CN205749863U (en) | 2016-05-12 | 2016-05-12 | A kind of electric energy meter detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620430926.9U CN205749863U (en) | 2016-05-12 | 2016-05-12 | A kind of electric energy meter detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205749863U true CN205749863U (en) | 2016-11-30 |
Family
ID=57368398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620430926.9U Expired - Fee Related CN205749863U (en) | 2016-05-12 | 2016-05-12 | A kind of electric energy meter detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205749863U (en) |
-
2016
- 2016-05-12 CN CN201620430926.9U patent/CN205749863U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161130 |