CN110471021A - A kind of electric energy meter calibrating apparatus and method with built-in monitoring base table - Google Patents
A kind of electric energy meter calibrating apparatus and method with built-in monitoring base table Download PDFInfo
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- CN110471021A CN110471021A CN201810443632.3A CN201810443632A CN110471021A CN 110471021 A CN110471021 A CN 110471021A CN 201810443632 A CN201810443632 A CN 201810443632A CN 110471021 A CN110471021 A CN 110471021A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
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Abstract
The present invention discloses a kind of electric energy meter calibrating apparatus and method with built-in monitoring base table, and described device includes checklist, overall control center, program controled power source, standard electric energy meter, base table, error calculation unit, operation keyboard, indicating meter and computer unit.The present invention is input operation instruction by operating keyboard, program controled power source provides the power of each unit module normal work, power electrical energy pulse is sent into error calculation unit by standard electric energy meter, error calculation unit acquires checklist pulse and base table pulse simultaneously and calculates error, error is calculated using electric energy comparison method, and shown by indicating meter, overall control center is then upload the data to by high-speed industrial CAN bus, data are finally passed into computer disposal.The present invention has passed through the high-precision examined and determine, the base table of high stability, high reliability by built-in inside calibrating installation, while using standard electric energy meter as examination criteria, substantially increases the accuracy of electric energy meter calibration.
Description
Technical field
The present invention relates to electric energy meter calibration technical fields, and more particularly relate to measurement centre, Utilities Electric Co., electric energy
Table manufacturing enterprise etc. is with a kind of electric energy with built-in monitoring base table of the compatible calibrating of the full-automation for realizing polymorphic type electric energy meter
Table calibrating installation and method.
Background technique
Electric energy meter is the instrument for being specifically used to measure certain time period electric energy aggregate-value, belongs to strong inspection measurement instrument, must inspection
It can just be installed and used after fixed qualification.Due to electric energy meter being widely used in various industries, calibration accuracy and stability it is also proposed that
Higher requirement.Currently, what the calibration accuracy and stability of traditional electric energy meter calibrating installation can only be provided by relevant manufacturers
Data are as reference, if the calibration accuracy of site assessment electric energy meter calibrating apparatus and stability have centainly not easy to operate
Property, currently, also having detected by the way of high accuracy reference energy meter in the market in terms of examining and determine electric energy meter, for example adopt
The standard electric energy meter of 0.05 grade, 0.02 grade, 0.01 grade or higher precision is used to be measured as standard, but High-precision standard
Electric energy meter cost is high, and cost is also high.With market development and firm effect the considerations of, it is necessary to it is a kind of bottom cost, high-precision
Degree, high stability, the calibration method of high reliability.
Summary of the invention
Deficiency in view of the above technology, the purpose of the present invention is to provide a kind of electric energy meter inspections with built-in monitoring base table
Determine device and method, user pass through the high-precision examined and determine, high stability, high reliability by built-in inside calibrating installation
Base table, while checklist is participated in into entire verification process, the base by using base table and standard electric energy meter as electric energy meter calibration
Standard substantially increases the accuracy of electric energy meter calibration.
The invention adopts the following technical scheme: a kind of electric energy meter calibrating apparatus with built-in monitoring base table, including it is tested
Table, wherein the calibrating installation further includes overall control center, program controled power source, standard electric energy meter, base table, error calculation unit, behaviour
Make keyboard, indicating meter and computer unit；Wherein the operation key disk and indicating meter and the overall control center pass through RS232
Bus connection, working condition of the overall control center by program controled power source described in the operation Keyboard Control, the program-controlled function
Each unit module input connects and provides the power of each unit module normal work, institute in the output end and device in rate source
It states error calculation unit and passes through RS485 bus or CAN bus and the checklist, base table and standard electric energy meter connecting communication,
And the error calculation unit is configured to receive, calculates the electrical energy pulse information of the checklist, base table standard electric energy meter, institute
The output end for stating error calculation unit is connect with the overall control center, and the overall control center also passes through isolated form RJ45 100M high
Fast Ethernet interface and ICP/IP protocol are connected with computer unit, and the computer unit is connected with outer by RS232 bus
If equipment.
As the scheme of further technology of the invention, error parameter, class of accuracy and the stability of the base table are situated between
Between 0.01-0.05.Except this, when specifically used, the appearance detection of base table, false actuation test, starts examination at AC voltage test
It tests, elementary error, instrument constant and clock error of time of day are according to " JJG596-2012 electronic type AC energy meter vertification regulation "
Relevant requirement as defined in " JJG 597-2005 AC electrical energy meter calibration vertification regulation ".
As the scheme of further technology of the invention, the base table mounting plate inside calibrating installation is arranged in the base table
On, and the base table and the pairing of base table meter adapting-seat are implemented, the base table meter adapting-seat is provided with gauge stand component, gauge stand pinboard and gold
Belong to pressure table handle, is additionally provided with the connecting terminal docked with the pulse signal hole on the base table on the base table meter adapting-seat.
As the scheme of further technology of the invention, the quantity of the standard electric energy meter and base table is respectively 1, and institute
It states standard electric energy meter and the base table is connected in parallel.
As the scheme of further technology of the invention, the error calculation unit and the checklist are arranged to an a pair
It should be related to.
As the scheme of further technology of the invention, the peripheral apparatus is printer, barcode reader and meter reading
In device any one or it is two or more.
A kind of electric energy meter calibration method with built-in monitoring base table, comprising the following steps:
(S0) start；
(S1) base table is selected；In the batch electric energy meter examined and determine, Select Error parameter, class of accuracy and stability are situated between
Electric energy meter between 0.01-0.05 is as the base table built in calibrating installation；
(S2) base table and standard electric energy meter are placed in inside calibrating installation；Selected base table and standard electric energy meter are passed through into radio frequency
It is placed in the place that user specifies after identification, bar code scan, is remained stationary for a long time；
(S3) error calculation unit acquires and calculates the pulse data of checklist, base table and standard electric energy meter；User is in the step
Start under the control of overall control center and calibrate for error, it is tested to control program controled power source output by the inspection software in overall control center
Power required for table, base table and standard electric energy meter, the electric energy of checklist, base table and standard electric energy meter under various different loads
To error calculation unit, error calculation unit is calculated by application condition by school electric energy meter error value pulse input；
(S4) energy data after calculating is subjected to error comparison, analysis；When detecting, checklist, base table and standard electric energy meter
There is corresponding calibration electrical energy pulse, the calibration pulse of calibration pulse and base table and standard electric energy meter by checklist carries out data
Comparison, calculates the gauging error of checklist；
(S5) data are saved, upload, are managed；Data, the local preservation of correlation data progress will be examined and determine, it is total by high-speed industrial CAN
Line uploads to overall control center, carries out United Dispatching and management to data by overall control center；
(S6) it judges whether to repeat to detect；
When carrying out repeating to detect to the same a collection of checklist just detected, then return step (S3) is detected；
When detecting to new a collection of checklist, then after carrying out step (S61), return step (S3) is detected；Wherein institute
The content of step (S61) in step (S6) is stated as replacement checklist batch.
When being not required to detect checklist, then step (S7) is carried out；
(S7) electric energy meter blanking, calibrating terminate.
Positive beneficial effect:
Electric energy meter of the present invention by using error parameter, class of accuracy and stability between 0.01-0.05 is filled as calibrating
Built-in monitoring table base table is set to use, meanwhile, the appearance detection of base table, AC voltage test, false actuation test, starting test, substantially
The items parameters of electric energy meter such as error, instrument constant and clock error of time of day meets " JJG596-2012 electronic type AC energy meter
Vertification regulation " and " JJG 597-2005 AC electrical energy meter calibration vertification regulation " prescribed requirement, this can greatly improve electricity
The composition error stability of energy table calibrating installation, with the stabilization of minimum cost realization calibrating installation, reliably；
Base table and standard electric energy meter by being used in electric energy meter calibrating apparatus carry out the calibrating of electric energy meter, base table by the present invention simultaneously
Have the characteristics that high-precision, high stability, high reliability, standard electric energy meter has certain grade and examines by national standard correlation
The fixed electric energy meter for partially examining and determine and meeting national standard correlation regulation, this makes the detection of electric energy meter that there are double standards to measure
Feature substantially increases the accuracy of electric energy meter detection.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings, in which:
Fig. 1 is a kind of principle schematic diagram of the electric energy meter calibrating apparatus with built-in monitoring base table of the present invention；
Fig. 2 is a kind of a kind of example structure schematic diagram of the electric energy meter calibrating apparatus with built-in monitoring base table of the present invention；
Fig. 3 is the front view of base table in a kind of electric energy meter calibrating apparatus with built-in monitoring base table of the present invention；
Fig. 4 is the schematic diagram of base table meter adapting-seat in a kind of electric energy meter calibrating apparatus with built-in monitoring base table of the present invention；
Fig. 5 is a kind of method flow schematic diagram of the electric energy meter calibration method with built-in monitoring base table of the present invention；
In figure, 1- base table mounting plate；2- gauge stand component；3- gauge stand pinboard；4- metal presses table handle；5- base table meter adapting-seat；6-
Connecting terminal.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that embodiment described herein
Only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
As shown in Figure 1, the present invention includes checklist, wherein the calibrating installation further include overall control center, program controled power source,
Standard electric energy meter, base table, error calculation unit, operation keyboard, indicating meter and computer unit；Wherein the operation key disk and
Indicating meter is connect with the overall control center by RS232 bus, and the overall control center passes through described in the operation Keyboard Control
The working condition of program controled power source, each unit module input is connected and is mentioned in the output end and device of the program controled power source
For the power that each unit module works normally, the error calculation unit passes through RS485 bus or CAN bus and the quilt
Examine table, base table and standard electric energy meter connecting communication, and the error calculation unit be configured to receive, calculate the checklist,
The electrical energy pulse information of base table standard electric energy meter, the output end of the error calculation unit is connect with the overall control center, described
Overall control center also passes through isolated form RJ45 100M high speed Ethernet interface and ICP/IP protocol is connected with computer unit, described
Computer unit is connected with peripheral apparatus by RS232 bus.
In the specific embodiment of the invention, as shown in Fig. 2, being also provided with temperature and humidity module, carrier module, function inside device
Module etc. is consumed, calibrating environment, data transmission and the calibrating demand of electric energy meter are further improved.Meanwhile it being detected in electric energy meter
In the process, it is also provided with insulation blocking unit, external interference in the detection process can be effectively shielded, further ensure that electricity
The detection accuracy of energy table, can also be arranged GPS module in a device, position to electric energy meter detection position and obtain check bit confidence
Breath, detection data is by catching stratum server etc. on interchanger local area network, for tension management unit monitors, management calibrating number
According to.
In the above-described embodiments, program controled power source as in device each unit module for source module, use number
Addition of waveforms method realizes harmonic wave.The working principle of specific harmonic wave is: sine wave is taken a data volume by every 0.1 degree
Change, a cycle is used as fundamental wave at totally 3600 points, and then the harmonic component of user setting is added on fundamental wave respectively, as waveform number
According under frequency and phase circuit control, through D/A conversion and filter circuit generation signal waveform, the waveform of generation is sent to power
It is exported after amplifier amplification, the voltage and current signals of output can be used to the verification of various electric energy meters.
In the present invention, the error parameter of the base table, class of accuracy and stability are between 0.01-0.05, In
When it is implemented, the appearance of base table detects, AC voltage test, false actuation test, starting test, elementary error, instrument constant and
Clock error of time of day meets " JJG596-2012 electronic type AC energy meter vertification regulation " and " JJG 597-2005 alternating current
Can table calibrating installation vertification regulation " as defined in require.In the present invention, base table is long-term solid as the built-in monitoring table of calibrating installation
Fixed not need to take out in the device, when there is a collection of new table to be checked to enter calibrating installation progress certificate test, base table is synchronous
It is accredited.The composition error stability of electric energy meter calibrating apparatus can be greatly improved, calibrating installation is realized with minimum cost
Stablize, is reliable.
As shown in Figure 3 and Figure 4, the base table is arranged on the base table mounting plate 1 inside calibrating installation, and the base table with
The pairing of base table meter adapting-seat 5 is implemented, i.e., a base table is mounted on a base table meter adapting-seat 5, and the base table meter adapting-seat 5 is provided with table
Holder assembly 2, gauge stand pinboard 3 and metal press table handle 4, are additionally provided with and the arteries and veins on the base table on the base table meter adapting-seat 5
Rush the connecting terminal 6 of telltale hole docking.Meet condition when base table works normally.
In the present invention, the quantity of the standard electric energy meter and base table is respectively 1, and the standard electric energy meter and described
Base table is connected in parallel.
In the present invention, the error calculation unit and the checklist are arranged to one-to-one relationship.
In the present invention, the peripheral apparatus is any one in printer, barcode reader and meter-copy device or two
Kind or more.It can be configured according to the specific needs of user.
As shown in figure 5, a kind of electric energy meter calibration method with built-in monitoring base table, comprising the following steps:
(S0) start；
(S1) base table is selected；In the batch electric energy meter examined and determine, Select Error parameter, class of accuracy and stability are situated between
Electric energy meter between 0.01-0.05 is as the base table built in calibrating installation；When specific operation, the appearance detection of base table is handed over
Flow every electric energy meter ginseng such as voltage test, false actuation test, starting test, elementary error, instrument constant and clock error of time of day
Number is according to " JJG596-2012 electronic type AC energy meter vertification regulation " and " JJG 597-2005 AC electrical energy meter calibration
Vertification regulation " prescribed requirement, this can greatly improve the composition error stability of electric energy meter calibrating apparatus, with minimum cost reality
It is the stabilization of existing calibrating installation, reliable；
(S2) base table and standard electric energy meter are placed in inside calibrating installation；Selected base table and standard electric energy meter are passed through into radio frequency
It is placed in the place that user specifies after identification, bar code scan, is remained stationary for a long time；Calibrating next time electric energy meter is just greatly saved in this
When time, improve the calibrating efficiency of electric energy meter；
(S3) error calculation unit acquires and calculates the pulse data of checklist, base table and standard electric energy meter；User is in the step
Start under the control of overall control center and calibrate for error, it is tested to control program controled power source output by the inspection software in overall control center
Power required for table, base table and standard electric energy meter, the electric energy of checklist, base table and standard electric energy meter under various different loads
To error calculation unit, error calculation unit is calculated by application condition by school electric energy meter error value pulse input；
(S4) energy data after calculating is subjected to error comparison, analysis；When detecting, checklist, base table and standard electric energy meter
There is corresponding calibration electrical energy pulse, the calibration pulse of calibration pulse and base table and standard electric energy meter by checklist carries out data
Comparison, calculates the gauging error of checklist；
(S5) data are saved, upload, are managed；Data, the local preservation of correlation data progress will be examined and determine, it is total by high-speed industrial CAN
Line uploads to overall control center, carries out United Dispatching and management to data by overall control center；
(S6) it judges whether to repeat to detect；
When carrying out repeating to detect to the same a collection of checklist just detected, then return step (S3) is detected；
When detecting to new a collection of checklist, then after carrying out step (S61), return step (S3) is detected；Wherein institute
The content of step (S61) in step (S6) is stated as replacement checklist batch；
When being not required to detect checklist, then step (S7) is carried out；
(S7) electric energy meter blanking, calibrating terminate.
In conjunction with above-described embodiment, below the present invention is described further.
Base table is installed, base table is that process was examined and determine and error is bent on the base table mounting plate 1 inside electric energy meter calibrating apparatus
Line is excellent, error information meet " JJG596-2012 electronic type AC energy meter vertification regulation " with " JJG 597-2005 is exchanged
Electric energy meter calibrating apparatus vertification regulation " as defined in require.Specifically, the error parameter of base table, class of accuracy and stability
Between 0.01-0.05.In calibrating, under overall control center control, input operation instruction by operating keyboard, it is program-controlled
Voltage and current needed for power source provides the cell operations such as checklist, standard electric energy meter, base table, error calculation unit；Standard electric
Power electrical energy pulse is sent into error calculation unit by energy table, and error calculation unit acquires checklist pulse and base table pulse simultaneously simultaneously
Error is calculated, error is calculated using electric energy comparison method, and show by indicating meter, then passes through high-speed industrial CAN bus
Upload to overall control center, overall control center is in epi-position data monitoring interface or is monitored to data in indicating meter, manages, most
Data are passed into computer disposal afterwards；Overall control center mainly complete order input, standard electric energy meter data processing (voltage, electric current,
Power, phase, frequency etc.), GPS data processing, epitope error information acquisition, multifunctional meter 485 communication, voltage and current output
The work such as control, the control of various function tests, data of the Temperature and Humidity module acquisition, power consumption data collection；Collected data are sent simultaneously
It is handled to computer.Calibrating installation is connect with computer by isolated form RJ45 100M high speed Ethernet interface, is used
ICP/IP protocol realizes data exchange.It can control device by computer to carry out all calibrations, have good luck, communication work, simultaneously
Different rates, different periods and the error of verification is completed to acquire, judge, changing the work such as whole, storage, printing.Calibrating installation also props up
The network storage and transmission of data are held, the optional equipments such as barcode reader, meter-copy device is supported, is provided just for paperless office
Benefit.After the completion of calibrating, calibrating data are analysed and compared by computer monitors the error information of base table, judges the calibrating of the device
Whether conclusion is in the error range of permission, if it exceeds setting error, then determine that there may be offsets for the device precision, pass through
Control system reminds monitoring room personnel in real time, which accurately will be determined problem by timely verification, and stop the calibrating of the device
Work.The present invention can be improved the composition error stability of electric energy meter calibrating apparatus, realize calibrating installation with minimum cost
It is reliable and stable.
Although specific embodiments of the present invention have been described above, it will be appreciated by those of skill in the art that these
Specific embodiment is merely illustrative of, those skilled in the art in the case where not departing from the principle and substance of the present invention,
Various omissions, substitutions and changes can be carried out to the details of the above method and system.For example, merge above method step, thus
Substantially identical function is executed according to substantially identical method to realize that substantially identical result then belongs to the scope of the present invention.Cause
This, the scope of the present invention is only limited by the claims that follow.
Claims (8)
1. a kind of electric energy meter calibrating apparatus with built-in monitoring base table, including checklist, it is characterised in that: the calibrating installation
It further include overall control center, program controled power source, standard electric energy meter, base table, error calculation unit, operation keyboard, indicating meter and meter
Calculation machine unit；Wherein the operation key disk and indicating meter are connect with the overall control center by RS232 bus, in the master control
The heart is by the working condition of program controled power source described in the operation Keyboard Control, in the output end and device of the program controled power source
Each unit module input connects and provides the power of each unit module normal work, and the error calculation unit passes through
RS485 bus or CAN bus and the checklist, base table and standard electric energy meter connecting communication, and the error calculation list
Member is configured to receive, calculates the electrical energy pulse information of the checklist, base table standard electric energy meter, the error calculation unit it is defeated
Outlet is connect with the overall control center, and the overall control center also passes through isolated form RJ45 100M high speed Ethernet interface and TCP/
IP agreement is connected with computer unit, and the computer unit is connected with peripheral apparatus by RS232 bus.
2. a kind of electric energy meter calibrating apparatus with built-in monitoring base table according to claim 1, it is characterised in that: described
Error parameter, class of accuracy and the stability of base table are between 0.01-0.05.
3. a kind of electric energy meter calibrating apparatus with built-in monitoring base table according to claim 2, it is characterised in that: described
Base table is arranged on the base table mounting plate (1) inside calibrating installation, and the base table and base table meter adapting-seat (5) pairing are implemented, institute
It states base table meter adapting-seat (5) and is provided with gauge stand component (2), gauge stand pinboard (3) and metal pressure table handle (4), the base table connects table
The connecting terminal (6) docked with the pulse signal hole on the base table is additionally provided on seat (5).
4. a kind of electric energy meter calibrating apparatus with built-in monitoring base table according to claim 1 or 3, it is characterised in that:
The quantity of the standard electric energy meter and base table is respectively 1, and the standard electric energy meter and the base table are connected in parallel.
5. a kind of electric energy meter calibrating apparatus with built-in monitoring base table according to claim 1, it is characterised in that: described
Error calculation unit and the checklist are arranged to one-to-one relationship.
6. a kind of electric energy meter calibrating apparatus with built-in monitoring base table according to claim 1, it is characterised in that: described
Peripheral apparatus be printer, barcode reader and meter-copy device in any one or it is two or more.
7. a kind of electric energy meter calibration method with built-in monitoring base table, it is characterised in that: the following steps are included:
(S0) start；
(S1) base table is selected；In the batch electric energy meter examined and determine, Select Error parameter, class of accuracy and stability are situated between
Electric energy meter between 0.01-0.05 is as the base table built in calibrating installation；
(S2) base table and standard electric energy meter are placed in inside calibrating installation；Selected base table and standard electric energy meter are passed through into radio frequency
It is placed in the place that user specifies after identification, bar code scan, is remained stationary for a long time；
(S3) error calculation unit acquires and calculates the pulse data of checklist, base table and standard electric energy meter；User is in the step
Start under the control of overall control center and calibrate for error, it is tested to control program controled power source output by the inspection software in overall control center
Power required for table, base table and standard electric energy meter, the electric energy of checklist, base table and standard electric energy meter under various different loads
To error calculation unit, error calculation unit is calculated by application condition by school electric energy meter error value pulse input；
(S4) energy data after calculating is subjected to error comparison, analysis；When detecting, checklist, base table and standard electric energy meter
There is corresponding calibration electrical energy pulse, the calibration pulse of calibration pulse and base table and standard electric energy meter by checklist carries out data
Comparison, calculates the gauging error of checklist；
(S5) data are saved, upload, are managed；Data, the local preservation of correlation data progress will be examined and determine, it is total by high-speed industrial CAN
Line uploads to overall control center, carries out United Dispatching and management to data by overall control center；
(S6) it judges whether to repeat to detect；
When carrying out repeating to detect to the same a collection of checklist just detected, then return step (S3) is detected；
When detecting to new a collection of checklist, then after carrying out step (S61), return step (S3) is detected；
When being not required to detect checklist, then step (S7) is carried out；
(S7) electric energy meter blanking, calibrating terminate.
8. a kind of electric energy meter calibration method with built-in monitoring base table according to claim 1, it is characterised in that: described
The content of step (S61) is replacement checklist batch in step (S6).
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| CN201810443632.3A CN110471021A (en) | 2018-05-10 | 2018-05-10 | A kind of electric energy meter calibrating apparatus and method with built-in monitoring base table |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111929633A (en) * | 2020-05-31 | 2020-11-13 | 宁夏隆基宁光仪表股份有限公司 | Electric energy meter detection system and method based on fusion ant colony algorithm |
| CN113640730A (en) * | 2021-07-08 | 2021-11-12 | 深圳市科陆精密仪器有限公司 | Intelligent Internet of things meter electric energy error verification system and method |
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| CN113640730A (en) * | 2021-07-08 | 2021-11-12 | 深圳市科陆精密仪器有限公司 | Intelligent Internet of things meter electric energy error verification system and method |
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