CN105372621A - Device calibration method, mobile correction device and field measurement equipment - Google Patents
Device calibration method, mobile correction device and field measurement equipment Download PDFInfo
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Abstract
The invention discloses a device calibration method, a mobile correction device and field measurement equipment. According to the method, through correction data measured in the field, to-be-corrected data sent by the field measurement equipment is acquired; a difference value between the correction data and the to-be-corrected data is acquired; if the difference value between the correction data and the to-be-corrected data is smaller than or equal to a preset difference value, a correction flow is quitted; if the difference value between the correction data and the to-be-corrected data is greater than the preset difference value, the field measurement equipment is corrected, a field correction problem of electric energy equipment is solved, mounting errors can be greatly reduced, persuasive data support is provided for metering and analysis on electric energy consumption, field service life of the electric energy equipment can be prolonged, the electric energy equipment which operates for a long term, is not corrected timely and has relatively large deviation is eliminated, and economic loss is substantially reduced for users and enterprises.
Description
Technical field
The embodiment of the present invention relates to the technical field of calibration, particularly relates to a kind of method of calibrating installation, portable verifying unit and spot measurement device.
Background technology
Along with rapid development of economy, electric energy has been the key player in epoch, comes from the indispensable of it.Round electric energy, most basic equipment is its measuring equipment.Accurately can measure electric energy, how need to see the accuracy of measuring equipment.General measurement instrument all needs periodic calibration, and the measuring equipment of electric energy is not without exception yet.But most power measuring devices is all be installed on scene, and needs long-time running, non-dismountable.Traditional laboratory investment method obviously cannot meet such present situation, and this proofreading method that just needs one are portable and equipment carry out satisfied such demand.
Traditional laboratory investment method is generally carry out under stable standard source.The power source of standard provides specified output, and power measuring devices is tested this output, is then defined as pass when test result meets the accuracy requirement of electric energy meter GB.But at the scene, the standard source that first measuring object is stable relative to laboratory is unstable, so cannot go to calibrate with the data measured and electrical network itself.
Summary of the invention
The object of the embodiment of the present invention is to propose a kind of method of calibrating installation, portable verifying unit and spot measurement device, is intended to solve power measuring devices how Proofreading Problems at the scene.
For reaching this object, the embodiment of the present invention by the following technical solutions:
First aspect, a kind of method of calibrating installation, described method comprises:
Obtain in-site measurement calibration data and obtain spot measurement device send data to be calibrated;
Obtain the difference between described calibration data and described data to be calibrated;
If the difference between described calibration data and described data to be calibrated is less than or equal to the difference pre-set, then exit calibration flow process;
If the difference pre-set described in the difference between described calibration data and described data to be calibrated is greater than, then calibrate described spot measurement device.
Preferably, described described spot measurement device is calibrated before, also comprise:
Arrange calibration parameter, described calibration parameter comprises pattern configurations parameter, channel gain configuration parameter, EMU cell location parameter, high-frequency impulse output configuration parameter, decompression threshold values parameters and starts threshold values parameters.
Preferably, described described spot measurement device to be calibrated, comprising:
The A phase of the data to be calibrated that described spot measurement device sends is corrected, under the condition of PF=1.0, carries out power gain correction;
Angular difference correction is carried out again under the condition of PF=0.5L;
The last correction carrying out electric current and voltage under the condition of rated voltage electric current.
Preferably, the calibration data of described acquisition in-site measurement also obtains the data to be calibrated that spot measurement device sends, and comprising:
The data to be calibrated of spot measurement device transmission are obtained by RS485 connection.
Second aspect, a kind of method of calibrating installation, described method comprises:
Calibration data is sent to portable verifying unit by RS485 connection;
The calibration parameter of described portable verifying unit transmission is received by RS485 connection.
The third aspect, described portable verifying unit comprises:
First acquisition module, for obtain in-site measurement calibration data and obtain spot measurement device send data to be calibrated;
Second acquisition module, for obtaining the difference between described calibration data and described data to be calibrated;
Exit module, if be less than or equal to for the difference between described calibration data and described data to be calibrated the difference pre-set, then exit calibration flow process;
Calibration module, if the difference pre-set described in being greater than for the difference between described calibration data and described data to be calibrated, then calibrates described spot measurement device.
Preferably, described device also comprises:
Arrange module, for arranging calibration parameter, described calibration parameter comprises pattern configurations parameter, channel gain configuration parameter, EMU cell location parameter, high-frequency impulse output configuration parameter, decompression threshold values parameters and starts threshold values parameters.
Preferably, described calibration module, comprising:
First correcting unit, the A phase for the data to be calibrated sent described spot measurement device corrects, under the condition of PF=1.0, carry out power gain correction;
Second correcting unit, for carrying out angular difference correction under the condition of PF=0.5L;
3rd correcting unit, for carrying out the correction of electric current and voltage under the condition of rated voltage electric current.
Preferably, described first acquisition module, for:
The data to be calibrated of spot measurement device transmission are obtained by RS485 connection.
Fourth aspect, a kind of spot measurement device, described spot measurement device comprises:
First sending module, for sending calibration data by RS485 connection to portable verifying unit;
Second sending module, for receiving the calibration parameter that described portable verifying unit sends by RS485 connection.
The embodiment of the present invention is by the calibration data of in-site measurement and obtain the data to be calibrated that spot measurement device sends; Obtain the difference between described calibration data and described data to be calibrated; If the difference between described calibration data and described data to be calibrated is less than or equal to the difference pre-set, then exit calibration flow process; The difference pre-set described in if the difference between described calibration data and described data to be calibrated is greater than, then described spot measurement device is calibrated, solve power measuring devices in the Proofreading Problems at scene, error in dipping can not only be greatly reduced, for the metering of electric power energy consumption and analysis provide more convictive Data support, and extend the onsite application life-span of power measuring devices, a lot of because long-time running is not but proofreaded in time, deviation is eliminated more greatly, can reduce considerable economic loss for user and enterprise.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of method first embodiment of embodiment of the present invention calibrating installation;
Fig. 2 is the schematic flow sheet of method second embodiment of embodiment of the present invention calibrating installation;
Fig. 3 is the schematic flow sheet of method the 3rd embodiment of embodiment of the present invention calibrating installation;
Fig. 4 is the high-level schematic functional block diagram of the portable verifying unit of the embodiment of the present invention;
Fig. 5 is the high-level schematic functional block diagram of the portable verifying unit of the embodiment of the present invention;
Fig. 6 is the high-level schematic functional block diagram of embodiment of the present invention calibration module;
Fig. 7 is the high-level schematic functional block diagram of embodiment of the present invention spot measurement device;
Fig. 8 is the high-level schematic functional block diagram of embodiment of the present invention spot measurement device.
Embodiment
Below in conjunction with drawings and Examples, the embodiment of the present invention is described in further detail.Be understandable that, specific embodiment described herein is only for explaining the embodiment of the present invention, but not the restriction to the embodiment of the present invention.It also should be noted that, for convenience of description, illustrate only the part relevant to the embodiment of the present invention in accompanying drawing but not entire infrastructure.
Embodiment one
It is the schematic flow sheet of method first embodiment of embodiment of the present invention calibrating installation with reference to figure 1, Fig. 1.
In embodiment one, the method for described calibrating installation comprises:
Step 101, obtain in-site measurement calibration data and obtain spot measurement device send data to be calibrated;
Preferably, the calibration data of described acquisition in-site measurement also obtains the data to be calibrated that spot measurement device sends, and comprising:
The data to be calibrated of spot measurement device transmission are obtained by RS485 connection.
Concrete, portable verifying unit reads the measurement data of power measuring devices by RS485 port, meanwhile, also issues calibration coefficient to power measuring devices by RS485 port.Receive data by RS485 transmission, make so portable verifying unit can be applied to most scenes, have very high compatibility.
Portable verifying unit of the present invention realizes high-precision measuring function by using high-precision measuring chip, accuracy exceed general power measuring devices rank and more than.Portable verifying unit is mainly divided into two major parts function---metering and correction.Function of measuring is completed by computation chip, and data finally can pass in ARMCPU and process.Function of measuring covers the metering of full electricity---voltage, electric current, power, power factor (PF), frequency, electric energy etc.The power measuring devices that can be the overwhelming majority provides more accurate and comprehensive comparison data.
Portable verifying unit of the present invention realizes the calibration function to power measuring devices by the correction software on ARM platform.The work corrected the power measuring devices at scene is all by the display section clicking operation of portable verifying unit.By the correction parameter that two parts of measurement data calculate, while power measuring devices being issued by RS485, also can be stored in SD card, for the follow-up data analysis that may occur provides supplemental characteristic.
Step 102, obtains the difference between described calibration data and described data to be calibrated;
Step 103, if the difference between described calibration data and described data to be calibrated is less than or equal to the difference pre-set, then exits calibration flow process;
Concrete, portable verifying unit inside can specify an error amount S0 approved.Suppose that, than right two parts of measurement data, the error calculating power measuring devices is S1, if S1≤S0, then give tacit consent to and do not need calibration.If S1 > is S0, so gives tacit consent to needs and calibrate.After calibration terminates, one-shot measurement, comparison and judgement can be carried out again, till knowing S1≤S0, stop calibration.
Step 104, if the difference between described calibration data and described data to be calibrated be greater than described in the difference that pre-sets, then described spot measurement device is calibrated.
Preferably, described described spot measurement device to be calibrated, comprising:
The A phase of the data to be calibrated that described spot measurement device sends is corrected, under the condition of PF=1.0, carries out power gain correction;
Angular difference correction is carried out again under the condition of PF=0.5L;
The last correction carrying out electric current and voltage under the condition of rated voltage electric current.
Concrete, to before often calibrating mutually, optimum configurations be carried out.What optimum configurations carried out successively is pattern configurations, channel gain configuration, EMU cell location, high-frequency impulse output configuration, the setting of decompression threshold values, the setting of startup threshold values, other setting.After optimum configurations completes, start to perform calibration work.In calibration process, actual be phase one phase carried out.The first A of internal default again B is finally C.First, under the condition of PF=1.0, power gain correction is carried out; Again under the condition of PF=0.5L, carry out angular difference correction; The last correction carrying out electric current and voltage under the condition of rated voltage electric current.After completing the correction (each register of parameter read-in) of three-phase successively, represent that calibration terminates.
The embodiment of the present invention is by the calibration data of in-site measurement and obtain the data to be calibrated that spot measurement device sends; Obtain the difference between described calibration data and described data to be calibrated; If the difference between described calibration data and described data to be calibrated is less than or equal to the difference pre-set, then exit calibration flow process; The difference pre-set described in if the difference between described calibration data and described data to be calibrated is greater than, then described spot measurement device is calibrated, solve power measuring devices in the Proofreading Problems at scene, error in dipping can not only be greatly reduced, for the metering of electric power energy consumption and analysis provide more convictive Data support, and extend the onsite application life-span of power measuring devices, a lot of because long-time running is not but proofreaded in time, deviation is eliminated more greatly, can reduce considerable economic loss for user and enterprise.
Embodiment two
It is the schematic flow sheet of method second embodiment of embodiment of the present invention calibrating installation with reference to figure 2, Fig. 2.
On the basis of embodiment one, described described spot measurement device is calibrated before, also comprise:
Step 105, arranges calibration parameter, and described calibration parameter comprises pattern configurations parameter, channel gain configuration parameter, EMU cell location parameter, high-frequency impulse output configuration parameter, decompression threshold values parameters and starts threshold values parameters.
Embodiment three
It is the schematic flow sheet of method the 3rd embodiment of embodiment of the present invention calibrating installation with reference to figure 3, Fig. 3.
In embodiment three, the method for described calibrating installation comprises:
Step 301, sends calibration data by RS485 connection to portable verifying unit;
Step 302, receives the calibration parameter of described portable verifying unit transmission by RS485 connection.
Concrete, portable verifying unit reads the measurement data of power measuring devices by RS485 port, meanwhile, also issues calibration coefficient to power measuring devices by RS485 port.Receive data by RS485 transmission, make so portable verifying unit can be applied to most scenes, have very high compatibility.
Portable verifying unit of the present invention realizes high-precision measuring function by using high-precision measuring chip, accuracy exceed general power measuring devices rank and more than.Portable verifying unit is mainly divided into two major parts function---metering and correction.Function of measuring is completed by computation chip, and data finally can pass in ARMCPU and process.Function of measuring covers the metering of full electricity---voltage, electric current, power, power factor (PF), frequency, electric energy etc.The power measuring devices that can be the overwhelming majority provides more accurate and comprehensive comparison data.
Portable verifying unit of the present invention realizes the calibration function to power measuring devices by the correction software on ARM platform.The work corrected the power measuring devices at scene is all by the display section clicking operation of portable verifying unit.By the correction parameter that two parts of measurement data calculate, while power measuring devices being issued by RS485, also can be stored in SD card, for the follow-up data analysis that may occur provides supplemental characteristic.
Portable verifying unit inside can specify an error amount S0 approved.Suppose that, than right two parts of measurement data, the error calculating power measuring devices is S1, if S1≤S0, then give tacit consent to and do not need calibration.If S1 > is S0, so gives tacit consent to needs and calibrate.After calibration terminates, one-shot measurement, comparison and judgement can be carried out again, till knowing S1≤S0, stop calibration.
To before often calibrating mutually, optimum configurations be carried out.What optimum configurations carried out successively is pattern configurations, channel gain configuration, EMU cell location, high-frequency impulse output configuration, the setting of decompression threshold values, the setting of startup threshold values, other setting.After optimum configurations completes, start to perform calibration work.In calibration process, actual be phase one phase carried out.The first A of internal default again B is finally C.First, under the condition of PF=1.0, power gain correction is carried out; Again under the condition of PF=0.5L, carry out angular difference correction; The last correction carrying out electric current and voltage under the condition of rated voltage electric current.After completing the correction (each register of parameter read-in) of three-phase successively, represent that calibration terminates.
The embodiment of the present invention is by the calibration data of in-site measurement and obtain the data to be calibrated that spot measurement device sends; Obtain the difference between described calibration data and described data to be calibrated; If the difference between described calibration data and described data to be calibrated is less than or equal to the difference pre-set, then exit calibration flow process; The difference pre-set described in if the difference between described calibration data and described data to be calibrated is greater than, then described spot measurement device is calibrated, solve power measuring devices in the Proofreading Problems at scene, error in dipping can not only be greatly reduced, for the metering of electric power energy consumption and analysis provide more convictive Data support, and extend the onsite application life-span of power measuring devices, a lot of because long-time running is not but proofreaded in time, deviation is eliminated more greatly, can reduce considerable economic loss for user and enterprise.
Embodiment four
It is the schematic flow sheet of method the 4th embodiment of embodiment of the present invention calibrating installation with reference to figure 4, Fig. 4.
In the diagram, the method for described calibrating installation comprises:
Step 401, portable verifying unit obtains field measurement data 2, and spot measurement device obtains field measurement data 1;
Step 402, portable verifying unit is the error S1 of benchmark data 1 with data 2;
Step 403, judges whether S1 is less than or equal to S0, and S0 is measuring equipment permissible accuracy;
Step 404, if so, then calibration terminates;
Step 405, if not, then carries out calibration to measuring equipment.
Embodiment five
With reference to the high-level schematic functional block diagram that figure 5, Fig. 5 is the portable verifying unit of the embodiment of the present invention.
In embodiment five, described portable verifying unit comprises:
First acquisition module 501, for obtain in-site measurement calibration data and obtain spot measurement device send data to be calibrated;
Preferably, described first acquisition module 501, for:
The data to be calibrated of spot measurement device transmission are obtained by RS485 connection.
Concrete, portable verifying unit reads the measurement data of power measuring devices by RS485 port, meanwhile, also issues calibration coefficient to power measuring devices by RS485 port.Receive data by RS485 transmission, make so portable verifying unit can be applied to most scenes, have very high compatibility.
Portable verifying unit of the present invention realizes high-precision measuring function by using high-precision measuring chip, accuracy exceed general power measuring devices rank and more than.Portable verifying unit is mainly divided into two major parts function---metering and correction.Function of measuring is completed by computation chip, and data finally can pass in ARMCPU and process.Function of measuring covers the metering of full electricity---voltage, electric current, power, power factor (PF), frequency, electric energy etc.The power measuring devices that can be the overwhelming majority provides more accurate and comprehensive comparison data.
Portable verifying unit of the present invention realizes the calibration function to power measuring devices by the correction software on ARM platform.The work corrected the power measuring devices at scene is all by the display section clicking operation of portable verifying unit.By the correction parameter that two parts of measurement data calculate, while power measuring devices being issued by RS485, also can be stored in SD card, for the follow-up data analysis that may occur provides supplemental characteristic.
Second acquisition module 502, for obtaining the difference between described calibration data and described data to be calibrated;
Exit module 503, if be less than or equal to for the difference between described calibration data and described data to be calibrated the difference pre-set, then exit calibration flow process;
Concrete, portable verifying unit inside can specify an error amount S0 approved.Suppose that, than right two parts of measurement data, the error calculating power measuring devices is S1, if S1≤S0, then give tacit consent to and do not need calibration.If S1 > is S0, so gives tacit consent to needs and calibrate.After calibration terminates, one-shot measurement, comparison and judgement can be carried out again, till knowing S1≤S0, stop calibration.
Calibration module 504, if the difference pre-set described in being greater than for the difference between described calibration data and described data to be calibrated, then calibrates described spot measurement device.
Preferably, with reference to figure 6, Fig. 6 be the high-level schematic functional block diagram of embodiment of the present invention calibration module.
Described calibration module 504, comprising:
First correcting unit 601, the A phase for the data to be calibrated sent described spot measurement device corrects, under the condition of PF=1.0, carry out power gain correction;
Second correcting unit 602, for carrying out angular difference correction under the condition of PF=0.5L;
3rd correcting unit 603, for carrying out the correction of electric current and voltage under the condition of rated voltage electric current.
Concrete, to before often calibrating mutually, optimum configurations be carried out.What optimum configurations carried out successively is pattern configurations, channel gain configuration, EMU cell location, high-frequency impulse output configuration, the setting of decompression threshold values, the setting of startup threshold values, other setting.After optimum configurations completes, start to perform calibration work.In calibration process, actual be phase one phase carried out.The first A of internal default again B is finally C.First, under the condition of PF=1.0, power gain correction is carried out; Again under the condition of PF=0.5L, carry out angular difference correction; The last correction carrying out electric current and voltage under the condition of rated voltage electric current.After completing the correction (each register of parameter read-in) of three-phase successively, represent that calibration terminates.
The embodiment of the present invention is by the calibration data of in-site measurement and obtain the data to be calibrated that spot measurement device sends; Obtain the difference between described calibration data and described data to be calibrated; If the difference between described calibration data and described data to be calibrated is less than or equal to the difference pre-set, then exit calibration flow process; The difference pre-set described in if the difference between described calibration data and described data to be calibrated is greater than, then described spot measurement device is calibrated, solve power measuring devices in the Proofreading Problems at scene, error in dipping can not only be greatly reduced, for the metering of electric power energy consumption and analysis provide more convictive Data support, and extend the onsite application life-span of power measuring devices, a lot of because long-time running is not but proofreaded in time, deviation is eliminated more greatly, can reduce considerable economic loss for user and enterprise.
Embodiment six
With reference to the high-level schematic functional block diagram that figure 7, Fig. 7 is the portable verifying unit of the embodiment of the present invention.
On the basis of embodiment five, described device also comprises:
Arrange module 505, for arranging calibration parameter, described calibration parameter comprises pattern configurations parameter, channel gain configuration parameter, EMU cell location parameter, high-frequency impulse output configuration parameter, decompression threshold values parameters and starts threshold values parameters.
Embodiment seven
With reference to the high-level schematic functional block diagram that figure 8, Fig. 8 is embodiment of the present invention spot measurement device.
In embodiment seven, described spot measurement device comprises:
First sending module 801, for sending calibration data by RS485 connection to portable verifying unit;
Second sending module 802, for receiving the calibration parameter that described portable verifying unit sends by RS485 connection.
Concrete, portable verifying unit reads the measurement data of power measuring devices by RS485 port, meanwhile, also issues calibration coefficient to power measuring devices by RS485 port.Receive data by RS485 transmission, make so portable verifying unit can be applied to most scenes, have very high compatibility.
Portable verifying unit of the present invention realizes high-precision measuring function by using high-precision measuring chip, accuracy exceed general power measuring devices rank and more than.Portable verifying unit is mainly divided into two major parts function---metering and correction.Function of measuring is completed by computation chip, and data finally can pass in ARMCPU and process.Function of measuring covers the metering of full electricity---voltage, electric current, power, power factor (PF), frequency, electric energy etc.The power measuring devices that can be the overwhelming majority provides more accurate and comprehensive comparison data.
Portable verifying unit of the present invention realizes the calibration function to power measuring devices by the correction software on ARM platform.The work corrected the power measuring devices at scene is all by the display section clicking operation of portable verifying unit.By the correction parameter that two parts of measurement data calculate, while power measuring devices being issued by RS485, also can be stored in SD card, for the follow-up data analysis that may occur provides supplemental characteristic.
Portable verifying unit inside can specify an error amount S0 approved.Suppose that, than right two parts of measurement data, the error calculating power measuring devices is S1, if S1≤S0, then give tacit consent to and do not need calibration.If S1 > is S0, so gives tacit consent to needs and calibrate.After calibration terminates, one-shot measurement, comparison and judgement can be carried out again, till knowing S1≤S0, stop calibration.
To before often calibrating mutually, optimum configurations be carried out.What optimum configurations carried out successively is pattern configurations, channel gain configuration, EMU cell location, high-frequency impulse output configuration, the setting of decompression threshold values, the setting of startup threshold values, other setting.After optimum configurations completes, start to perform calibration work.In calibration process, actual be phase one phase carried out.The first A of internal default again B is finally C.First, under the condition of PF=1.0, power gain correction is carried out; Again under the condition of PF=0.5L, carry out angular difference correction; The last correction carrying out electric current and voltage under the condition of rated voltage electric current.After completing the correction (each register of parameter read-in) of three-phase successively, represent that calibration terminates.
The embodiment of the present invention is by the calibration data of in-site measurement and obtain the data to be calibrated that spot measurement device sends; Obtain the difference between described calibration data and described data to be calibrated; If the difference between described calibration data and described data to be calibrated is less than or equal to the difference pre-set, then exit calibration flow process; The difference pre-set described in if the difference between described calibration data and described data to be calibrated is greater than, then described spot measurement device is calibrated, solve power measuring devices in the Proofreading Problems at scene, error in dipping can not only be greatly reduced, for the metering of electric power energy consumption and analysis provide more convictive Data support, and extend the onsite application life-span of power measuring devices, a lot of because long-time running is not but proofreaded in time, deviation is eliminated more greatly, can reduce considerable economic loss for user and enterprise.
Below the know-why of the embodiment of the present invention is described in conjunction with specific embodiments.These describe the principle just in order to explain the embodiment of the present invention, and can not be interpreted as the restriction to embodiment of the present invention protection domain by any way.Based on explanation herein, those skilled in the art does not need to pay other embodiment that performing creative labour can associate the embodiment of the present invention, these modes all by fall into the embodiment of the present invention protection domain within.
Claims (10)
1. a method for calibrating installation, is characterized in that, described method comprises:
Obtain in-site measurement calibration data and obtain spot measurement device send data to be calibrated;
Obtain the difference between described calibration data and described data to be calibrated;
If the difference between described calibration data and described data to be calibrated is less than or equal to the difference pre-set, then exit calibration flow process;
If the difference pre-set described in the difference between described calibration data and described data to be calibrated is greater than, then calibrate described spot measurement device.
2. method according to claim 1, is characterized in that, described described spot measurement device is calibrated before, also comprise:
Arrange calibration parameter, described calibration parameter comprises pattern configurations parameter, channel gain configuration parameter, EMU cell location parameter, high-frequency impulse output configuration parameter, decompression threshold values parameters and starts threshold values parameters.
3. method according to claim 2, is characterized in that, describedly calibrates described spot measurement device, comprising:
The A phase of the data to be calibrated that described spot measurement device sends is corrected, under the condition of PF=1.0, carries out power gain correction;
Angular difference correction is carried out again under the condition of PF=0.5L;
The last correction carrying out electric current and voltage under the condition of rated voltage electric current.
4. method according to claim 1, is characterized in that, the calibration data of described acquisition in-site measurement also obtains the data to be calibrated that spot measurement device sends, and comprising:
The data to be calibrated of spot measurement device transmission are obtained by RS485 connection.
5. a method for calibrating installation, is characterized in that, described method comprises:
Calibration data is sent to portable verifying unit by RS485 connection;
The calibration parameter of described portable verifying unit transmission is received by RS485 connection.
6. a portable verifying unit, is characterized in that, described portable verifying unit comprises:
First acquisition module, for obtain in-site measurement calibration data and obtain spot measurement device send data to be calibrated;
Second acquisition module, for obtaining the difference between described calibration data and described data to be calibrated;
Exit module, if be less than or equal to for the difference between described calibration data and described data to be calibrated the difference pre-set, then exit calibration flow process;
Calibration module, if the difference pre-set described in being greater than for the difference between described calibration data and described data to be calibrated, then calibrates described spot measurement device.
7. device according to claim 6, is characterized in that, described device also comprises:
Arrange module, for arranging calibration parameter, described calibration parameter comprises pattern configurations parameter, channel gain configuration parameter, EMU cell location parameter, high-frequency impulse output configuration parameter, decompression threshold values parameters and starts threshold values parameters.
8. device according to claim 7, is characterized in that, described calibration module, comprising:
First correcting unit, the A phase for the data to be calibrated sent described spot measurement device corrects, under the condition of PF=1.0, carry out power gain correction;
Second correcting unit, for carrying out angular difference correction under the condition of PF=0.5L;
3rd correcting unit, for carrying out the correction of electric current and voltage under the condition of rated voltage electric current.
9. device according to claim 6, is characterized in that, described first acquisition module, for:
The data to be calibrated of spot measurement device transmission are obtained by RS485 connection.
10. a spot measurement device, is characterized in that, described spot measurement device comprises:
First sending module, for sending calibration data by RS485 connection to portable verifying unit;
Second sending module, for receiving the calibration parameter that described portable verifying unit sends by RS485 connection.
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| CN107228719A (en) * | 2017-06-13 | 2017-10-03 | 青岛海信宽带多媒体技术有限公司 | Temperature correction method, module to be measured and temperature calibration instrument |
| CN107607903A (en) * | 2017-09-19 | 2018-01-19 | 珠海格力电器股份有限公司 | The calibration method and device of a kind of electric energy measuring equipment |
| CN107843867A (en) * | 2017-09-19 | 2018-03-27 | 珠海格力电器股份有限公司 | Obtain the method and device of check and correction parameter |
| CN108304202A (en) * | 2017-12-20 | 2018-07-20 | 珠海派诺科技股份有限公司 | A kind of more instrument firmware upgrade methods and device based on bus |
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