CN205229256U - Measurement operating mode characteristic detector - Google Patents
Measurement operating mode characteristic detector Download PDFInfo
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- CN205229256U CN205229256U CN201520902928.9U CN201520902928U CN205229256U CN 205229256 U CN205229256 U CN 205229256U CN 201520902928 U CN201520902928 U CN 201520902928U CN 205229256 U CN205229256 U CN 205229256U
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- 238000005259 measurement Methods 0.000 title abstract description 10
- 238000004891 communication Methods 0.000 claims abstract description 10
- 238000005070 sampling Methods 0.000 claims abstract description 6
- 238000001514 detection method Methods 0.000 claims description 11
- 238000012544 monitoring process Methods 0.000 claims description 11
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012797 qualification Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model provides a measurement operating mode characteristic detector, includes DSP treater, AD converter, SD card, memory, display and external communication interface. Voltage, current data, non -volatile recording voltage current waveform are accurately gathered according to the pulse of on -the -spot strapping table meter in real time to the detector, with the hour recording meritorious pulse of outside ammeter and idle number of pulse and corresponding voltage, current sample point position, according to meritorious pulse of the outside ammeter of record and idle number of pulse, analysis error under long -time, the different measurement operating modes, data of uploading and analysis data can be preserved as important data. The utility model discloses not only possess measurement and metering error contrast function, still possess long -time sampling record wave number certificate and control pulse pair score according to the real -time synchronization upload function.
Description
Technical field
The utility model relates to a kind of working condition of metering Characteristics Detection instrument, belongs to electric-power metering technical field.
Background technology
Existing electric energy quality monitor is a kind of network type, hyperchannel, high-performance, high-precision online equipment for monitoring power quality, it has the displays such as automatic measurement, liquid crystal picture, list data, Intelligent statistical analysis, multiple affair is reported to the police and record, the storage of Large Copacity Monitoring Data and network data communication function, is to have merged modern digital signal transacting, compunication, up-to-date quality of power supply theory in the hi-tech monitoring equipment of one.But existing record wave device is mainly used in analyzing electric network fault, does not possess metering and error in dipping comparing function; Existing metering outfit has function of measuring, but does not possess long-time sampling recorder data and monitoring pulse correlation data real-time synchronization is uploaded; All cannot be used for analyzing the impact of different working condition of metering on metering.
The electric energy measurement data of watch-dog and monitored electric energy meter is combined with operating mode recorder data does not have existing solution, and the RS485 of employing routine reads its communication delay time of electric flux mode length and time delay is unstable, cannot contrast with operating mode and with reference to electric energy.
Summary of the invention
The purpose of this utility model is, for the deficiency that prior art is analyzed working condition of metering, discloses a kind of working condition of metering Characteristics Detection instrument.
The technical solution of the utility model is, a kind of working condition of metering Characteristics Detection instrument, comprise dsp processor, A/D converter, SD card, storer, display and external communication interface, described detector to and three road voltages of site and three road current sampling signals to connect the input port of dsp processor by A/D converter; On-off signal directly connects another input port of dsp processor; Dsp processor is interconnected with SD card, storer, display, external communication interface respectively.
Described detector gathers voltage, current data real-time and accurately according to the pulse of situ metrology table meter, non-volatile recording voltage current waveform; Record outside ammeter to gain merit the voltage of pulse and idle umber of pulse and correspondence, current sample point position simultaneously; To gain merit pulse and idle umber of pulse according to recording outside ammeter, analytical error under long-time, different working condition of metering.
In the pulse data that real time measure generates by described detector and the electrical network three-phase voltage that the electric energy meter pulse data that monitoring obtains is attached to 12800/second with a byte status bit representation and current synchronization sampled data, the electric energy incremental data of high-resolution can be obtained.
Described detector adopts the high-speed dsp processor of TI as core controller, and it has 300MHZ dominant frequency; A/D converter adopts the high-precision adc of 16, to and 3 phase voltages of site and 3 phase currents sample, through the quick calculating of DSP, obtain basic electrical measurement and accumulation electric energy accurately; 4 way switch amount inputs can gather and the pulse signal of site electric energy meter output, and make marks.
The beneficial effects of the utility model are, the utility model compared with prior art, the utility model working condition of metering Characteristics Detection instrument not only possesses metering and error in dipping comparing function, also possesses long-time sampling recorder data and monitoring pulse correlation data real-time synchronization upload function.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of a kind of working condition of metering Characteristics Detection of the utility model instrument.
Embodiment
Embodiment of the present utility model as shown in Figure 1.
A kind of working condition of metering Characteristics Detection of the present embodiment instrument comprises dsp processor, A/D converter, SD card, storer, display and external communication interface.To and three road voltages of site and three road current sampling signals to connect the input port of dsp processor by A/D converter; On-off signal directly connects another input port of dsp processor; Dsp processor is interconnected with SD card, storer, display, external communication interface etc. respectively.
The present embodiment detector adopts the high-speed dsp processor of TI as core controller, and it has 300MHZ dominant frequency, abundant Peripheral Interface.A/D converter adopts the high-precision adc of 16, to and 3 phase voltages of site and 3 phase currents sample, through the quick calculating of DSP, obtain basic electrical measurement and accumulation electric energy accurately.4 way switch amount inputs can gather and the pulse signal of site electric energy meter output, and make marks.Some essential informations and measured value can be shown intuitively at LCD.Parameter and accumulation electric energy are saved in FRAM storer, the important medium that SD stores as voltage current waveform and pulse information.External communication interface has 1 road Ethernet, 2 tunnels 232, tunnel 485,1.Need the action reported to the police or control can be exported by outside relay for some and carry out action.
The present embodiment detector gathers voltage, current data real-time and accurately according to the pulse of situ metrology table meter, non-volatile recording voltage current waveform; Record outside ammeter to gain merit the voltage of pulse and idle umber of pulse and correspondence, current sample point position simultaneously; To gain merit pulse and idle umber of pulse according to recording outside ammeter, analytical error under long-time, different working condition of metering.
In the pulse data that real time measure generates by the present embodiment detector and the electrical network three-phase voltage that the electric energy meter pulse data that monitoring obtains is attached to 12800/second with a byte status bit representation and current synchronization sampled data, the electric energy incremental data of high-resolution can be obtained.
After the present embodiment working condition of metering Characteristics Detection instrument gathers line voltage current signal, can process voltage and current signal, realize following functions: Steady-state Parameters monitoring is added up with qualification rate, transient process is monitored, electric energy metrical, electricity requirement are settled accounts, logout, data storage function temporarily.
Steady-state Parameters monitoring is added up mainly comprise with qualification rate: voltage/current effective value, have the parameters such as reactive power, applied power, power factor (PF), phase place, electric current and voltage qualification rate, harmonic content, electric current and voltage aberration rate.
Temporary transient process monitoring mainly comprises: voltage dip, voltage swells, short time voltage interruption etc.
Electric energy metrical parameter mainly includes merit metering, four-quadrant reactive measurement, time-sharing measurement, demand metering.
Settlement function, (comprising positive and negatively has idle (timesharing) summation phase-splitting electric energy data, four-quadrant reactive energy data, positive and negatively has idle (timesharing) total maximum demand and time of origin to preserve 12 months history settlement datas.
Logout: time of origin, duration and the extreme value of record power quality index out-of-limit event.Record falls temporarily, liter, short interruptions time time of origin, duration, extreme value and half-wave effective value temporarily.
Data store:
1) maximal value, minimum value, mean value, 95% probable value of stable-state index of power quality in the stored record cycle;
2) maximal value, minimum value, the mean value of the index such as active power, reactive power, power factor in the stored record cycle;
3) recorder data can be realized store.
Claims (3)
1. a working condition of metering Characteristics Detection instrument, comprise dsp processor, A/D converter, SD card, storer, display and external communication interface, it is characterized in that, described detector to and three road voltages of site and three road current sampling signals to connect the input port of dsp processor by A/D converter; On-off signal directly connects another input port of dsp processor; Dsp processor is interconnected with SD card, storer, display, external communication interface respectively.
2. a kind of working condition of metering Characteristics Detection instrument according to claim 1, is characterized in that, described detector adopts the high-speed dsp processor of TI as core controller, and it has 300MHZ dominant frequency; A/D converter adopts the high-precision adc of 16, to and 3 phase voltages of site and 3 phase currents sample; 4 way switch amount inputs gather and the pulse signal of site electric energy meter output.
3. a kind of working condition of metering Characteristics Detection instrument according to claim 1, it is characterized in that, in the pulse data that real time measure generates by described detector and the electrical network three-phase voltage that the electric energy meter pulse data that monitoring obtains is attached to 12800/second with a byte status bit representation and current synchronization sampled data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520902928.9U CN205229256U (en) | 2015-11-13 | 2015-11-13 | Measurement operating mode characteristic detector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520902928.9U CN205229256U (en) | 2015-11-13 | 2015-11-13 | Measurement operating mode characteristic detector |
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| CN205229256U true CN205229256U (en) | 2016-05-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107561478A (en) * | 2016-06-30 | 2018-01-09 | 湖南东瑞智能仪表有限公司 | A kind of electric energy meter complete machine hardware fault automatic detection device and its detection method |
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2015
- 2015-11-13 CN CN201520902928.9U patent/CN205229256U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107561478A (en) * | 2016-06-30 | 2018-01-09 | 湖南东瑞智能仪表有限公司 | A kind of electric energy meter complete machine hardware fault automatic detection device and its detection method |
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