CN108828496A - Automatic calibration of electric energy meter assembly line method for estimating stability - Google Patents
Automatic calibration of electric energy meter assembly line method for estimating stability Download PDFInfo
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- CN108828496A CN108828496A CN201810716655.7A CN201810716655A CN108828496A CN 108828496 A CN108828496 A CN 108828496A CN 201810716655 A CN201810716655 A CN 201810716655A CN 108828496 A CN108828496 A CN 108828496A
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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 embodiments relate to instrument and meter field of measuring technique, provide a kind of automatic calibration of electric energy meter assembly line method for estimating stability, the method includes：Prepare evaluation electric energy meter；Multiple automation calibrating devices in automatic calibration of electric energy meter assembly line examine and determine evaluation electric energy meter according to default verification task one by one, when evaluating electric energy meter through transmission line to the first automation calibrating device, first automation calibrating device obtains stably measured result to evaluation electric energy meter progress stability test according to stability test task and is sent to automatic control system, and the qualified stability of the first automation calibrating device is determined when stably measured result is less than preset error value；Determine that the stability of the first automation calibrating device is unqualified when stably measured result is greater than or equal to preset error value.Compared with traditional artificial calibrating mode, detection efficiency of the embodiment of the present invention is high and accuracy is high, can effectively promote calibrating production efficiency.
Description
Technical field
The present embodiments relate to instrument and meter field of measuring technique, automate and examine in particular to a kind of electric energy meter
Constant current waterline method for estimating stability.
Background technique
The stability of measuring instrument refers to that measuring instrument keeps its meter characteristic constant ability at any time.For measuring instrument
Device, especially mete-wand, standard measurement equipment, stability are important one of metering performance, and the stabilization of indicating value is guaranteed discharge
Value is accurately basic.
Measuring instrument is led due to the not careful reason such as component aging, parts wear and use, storage, maintenance
Cause equipment unstable, therefore, in order to check that measuring instrument keeps its calibration in the time interval of calibration or verification quality inspection twice
The confidence level of state need to carry out stability assessment to measuring instrument, and to prove that its error of indication is maintained at stable state, this is to guarantor
Demonstrate,proving calibration operation quality has realistic meaning.Traditional electric energy meter calibrating apparatus carries out stability verification, consumption using manual type
Duration, heavy workload, and influence normal calibrating production efficiency.
Summary of the invention
The embodiment of the present invention is designed to provide a kind of automatic calibration of electric energy meter assembly line method for estimating stability, uses
To improve the above problem.
To achieve the goals above, technical solution used in the embodiment of the present invention is as follows：
The embodiment of the invention provides a kind of automatic calibration of electric energy meter assembly line method for estimating stability, for electric energy
Each automation calibrating device in table automatic calibration assembly line carries out estimation of stability, the automatic calibration of electric energy meter stream
Waterline includes transmission line, handling equipment, multiple automation calibrating devices and automatic control system, is controlled by the automation
System processed carries out overall scheduling controlling, the automatic calibration of electric energy meter stream to handling equipment, multiple automation calibrating devices
Waterline method for estimating stability includes：Prepare evaluation electric energy meter, wherein the outer dimension and the transmission of the evaluation electric energy meter
Multiple intelligent electric energy meters on line are consistent；Any one intelligence electricity on the transmission line is replaced using the evaluation electric energy meter
Energy table, so that the evaluation electric energy meter and other intelligent electric energy meters are transmitted to multiple automation calibrating devices by the transmission line；
The multiple automation calibrating device examines and determine evaluation electric energy meter according to default verification task one by one, when evaluation electric energy meter warp
When transmission line to the first automation calibrating device, first automation calibrating device is according to stability test task to commenting
Valence electric energy meter carries out stability test and obtains stably measured result and be sent to the automatic control system, wherein described the
One automation calibrating device is any one in multiple automation calibrating devices, and first automation calibrating device is pre-
If verification task is stability test task；The automatic control system is by the stably measured result and the default error
Value compares, and when the stably measured result is less than preset error value, then determines first automation calibrating device
Qualified stability；When the stably measured result is greater than or equal to preset error value, then first automatic calibration is determined
The stability of device is unqualified.
Further, first automation calibrating device is electrically connected with the automatic control system；Described first certainly
Dynamicization calibrating installation carries out stability test to evaluation electric energy meter according to stability test task and obtains the step of stably measured result
Suddenly, including：First automation calibrating device carries out multiple stability test to the evaluation electric energy meter, and test is obtained
Multiple error results be transmitted to the automatic control system；The automatic control system calculates first automation
The average value of multiple error results of calibrating installation transmission, and using the absolute difference of the average value and default measurement result as
The stably measured result.
Further, the stability test task be measurement voltage be voltage rating, measurement electric current be fundamental current, survey
Measuring power factor is 1.0 or 0.5.
Further, the automatic calibration of electric energy meter assembly line method for estimating stability further includes：Complete described first
After the estimation of stability of automation calibrating device, other automation calibrating devices in multiple automation calibrating devices are carried out
Estimation of stability.
Further, the preset error value is the absolute of the limits of error of first automation calibrating device
Value.
Compared with the prior art, a kind of automatic calibration of electric energy meter assembly line estimation of stability side provided in an embodiment of the present invention
Method, firstly, preparing the consistent evaluation electric energy meter of multiple intelligent electric energy meters on outer dimension and transmission line；Then, using commenting
Valence electric energy meter replaces any one intelligent electric energy meter on transmission line, so that transmission line is electric by the evaluation electric energy meter and other intelligence
Energy table is transmitted to multiple automation calibrating devices；Finally, automation calibrating device is according to default verification task to evaluation electric energy
Table is examined and determine one by one, when evaluating electric energy meter through transmission line to the first automation calibrating device, the first automatic calibration
Device carries out stability test to evaluation electric energy meter according to stability test task and obtains stably measured as a result, when stably measured knot
When fruit is less than preset error value, then the qualified stability of the first automation calibrating device is determined；Be greater than when stably measured result or
When equal to preset error value, then determine that the stability of the first automation calibrating device is unqualified.With traditional artificial calibrating mode
It compares, detection efficiency of the embodiment of the present invention is high and accuracy is high, can effectively promote calibrating production efficiency.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 shows the structural block diagram of automatic calibration of electric energy meter assembly line provided in an embodiment of the present invention.
Fig. 2 shows the structural block diagrams of automation calibrating device provided in an embodiment of the present invention.
Fig. 3 shows automatic calibration of electric energy meter assembly line method for estimating stability process provided in an embodiment of the present invention
Figure.
Icon：100- automatic calibration of electric energy meter assembly line；110- automatic control system；120- handling equipment；
130- information binding device；140- automation calibrating device；141- power source；142- Error Calculator.
Specific embodiment
Below in conjunction with attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Usually exist
The component of the embodiment of the present invention described and illustrated in attached drawing can be arranged and be designed with a variety of different configurations herein.Cause
This, is not intended to limit claimed invention to the detailed description of the embodiment of the present invention provided in the accompanying drawings below
Range, but it is merely representative of selected embodiment of the invention.Based on the embodiment of the present invention, those skilled in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.Meanwhile of the invention
In description, term " first ", " second " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
Fig. 1 is please referred to, Fig. 1 shows the structure of automatic calibration of electric energy meter assembly line 100 provided in an embodiment of the present invention
Block diagram.Automatic calibration of electric energy meter assembly line 100 includes transmission line, automatic control system 110, handling equipment 120, information
Binding device 130, multiple automation calibrating devices 140, automatic control system 110 is to handling equipment 120, information binding dress
It sets 130, multiple automation calibrating devices 140 and carries out United Dispatching control.
In embodiments of the present invention, transmission line is for connecting handling equipment 120, information binding device 130, multiple automatic
Change calibrating installation 140.
In embodiments of the present invention, automatic control system 110 controls transmission line, handling equipment for United Dispatching
120, the work of information binding device 130, multiple automation calibrating devices 140.As an implementation, automation control system
System 110 may be, but not limited to, PLC (Programmable Logic Controller, programmable logic controller (PLC)) control
Device.
In embodiments of the present invention, handling equipment 120 moves to transmission line for that will evaluate electric energy meter, wherein evaluation electricity
The outer dimension of the multiple intelligent electric energy meters transmitted on energy table and transmission line is consistent.Evaluate electric energy meter and intelligent electric energy meter
To be single-phase electric energy meter or three-phase electric energy meter, the shape and size and intelligent electric energy meter of the evaluation electric energy meter are completely the same.It should
The uncertainty of measurement for evaluating electric energy meter is better than 0.1%, and is examined and determine in advance by the measurement criteria of a high grade, to ensure it
Meter characteristic meets stability test requirement.
In embodiments of the present invention, transmission line includes conveyer belt and pallet, and pallet and transmission band connection, pallet are used to place
Electric energy meter and intelligent electric energy meter are evaluated, conveyer belt is for passing the evaluation electric energy meter and intelligent electric energy meter that are placed on pallet
It is defeated.
In embodiments of the present invention, information binding device 130 is stablized for that will evaluate electric energy meter and default verification task
The information of the automation calibrating device 140 of property test mission is bound, so that Utilization assessment electric energy meter is to default verification task
Estimation of stability is carried out for the automation calibrating device 140 of stability test task.
In embodiments of the present invention, multiple automation calibrating devices 140 are used for electric to evaluation according to default verification task
Energy table is examined and determine one by one, when evaluating electric energy meter through transmission line to the first automation calibrating device, the first automation inspection
Determine device and stably measured result is obtained to evaluation electric energy meter progress stability test according to stability test task, wherein first
Automation calibrating device is any one in multiple automation calibrating devices 140, and the first automation calibrating device is default
Verification task is stability test task.
Referring to figure 2., Fig. 2 shows the structural block diagrams of automation calibrating device 140 provided in an embodiment of the present invention.Automatically
Change calibrating installation 140 and automatic control system 110 is electrically connected, automation calibrating device 140 is used to carry out evaluation electric energy meter
Multiple stability test, and multiple error results that test obtains are transmitted to automatic control system 110；Automation control
The average value for multiple error results that system 110 is transmitted for calculation automation calibrating installation 140, and by the average value and preset
The absolute difference of measurement result is as stably measured result.
Automation calibrating device 140 includes power source 141, Error Calculator 142, standard electric energy meter position, evaluation electric energy meter
Position, standard electric energy meter position for placing standard electric energy meter, evaluation electric energy epitope for placing evaluation electric energy meter, standard electric energy meter and
Evaluation electric energy meter is electrically connected between power source 141 and Error Calculator 142, and Error Calculator 142 and automation control
System 110 connects.
In embodiments of the present invention, automatic control system 110 is also used to survey stablizing for the first automation calibrating device
Amount result is compared with the preset error value, when stably measured result is less than preset error value, then determines that first is automatic
Change the qualified stability of calibrating installation；When stably measured result is greater than or equal to preset error value, then the first automation is determined
The stability of calibrating installation is unqualified.
In embodiments of the present invention, handling equipment 120 is also used to complete the evaluation electric energy meter of calibrating under transmission line
It moves.
Referring to figure 3., Fig. 3 shows automatic calibration of electric energy meter assembly line estimation of stability provided in an embodiment of the present invention
Method flow diagram.The automatic calibration of electric energy meter assembly line method for estimating stability is used for automatic calibration of electric energy meter assembly line
Each automation calibrating device 140 in 100 carries out estimation of stability comprising following steps：
Step S101 prepares evaluation electric energy meter, wherein evaluate multiple intelligence in the outer dimension and transmission line of electric energy meter
Electric energy meter is consistent.
In embodiments of the present invention, it evaluates electric energy meter and intelligent electric energy meter may each be single-phase electric energy meter or three-phase electric energy
Table, the shape and size and intelligent electric energy meter of the evaluation electric energy meter are completely the same.The uncertainty of measurement of the evaluation electric energy meter is excellent
It is examined and determine in 0.1%, and in advance by the measurement criteria of a high grade, is wanted with ensuring that its meter characteristic meets stability test
It asks.
Step S102, Utilization assessment electric energy meter replace any one intelligent electric energy meter on transmission line, so that transmission line will
The evaluation electric energy meter and other intelligent electric energy meters are transmitted to multiple automation calibrating devices 140.
In embodiments of the present invention, in 100 operational process of automatic calibration of electric energy meter assembly line, Utilization assessment electric energy meter
Replace any one intelligent electric energy meter on the pallet that is currently running so that transmission line by the evaluation electric energy meter and do not replace its
Its intelligent electric energy meter is transmitted to multiple automation calibrating devices 140.
Step S103, multiple automation calibrating devices 140 examine evaluation electric energy meter according to default verification task one by one
Fixed, when evaluating electric energy meter through transmission line to the first automation calibrating device, the first automation calibrating device is according to stabilization
Property test mission to evaluation electric energy meter carry out stability test obtain stably measured result, wherein the first automation calibrating device
For any one in multiple automation calibrating devices 140, and the default verification task of the first automation calibrating device is to stablize
Property test mission.
In embodiments of the present invention, the experimental condition of stability test task is：Measurement voltage is voltage rating, measurement electricity
Stream is fundamental current, measurement power factor is 1.0 or 0.5, when evaluation electric energy meter reaches the first automatic calibration dress through transmission line
After setting corresponding calibrating epitope, the first automation calibrating device can be used evaluation according to the stability test task pre-set
Electric energy meter carries out stability test；When the other intelligent electric energy meters that do not replace reach the corresponding calibrating of the first automation calibrating device
After epitope, the first automation calibrating device normally executes former test mission.
In embodiments of the present invention, 140 pairs of other automation calibrating devices transmission in multiple automation calibrating devices 140
The multiple intelligent electric energy meters transmitted on line carry out former test, and 140 pairs of evaluation electric energy meters of the first automation calibrating device are arranged
Test result be unqualified, that is to say, that setting evaluation electric energy meter other test missions in addition to stability test task
Experimental result is unqualified.
In embodiments of the present invention, the first automation calibrating device is electrically connected with automatic control system 110, and first is automatic
Change calibrating installation and the step of stability test obtains stably measured result carried out to evaluation electric energy meter according to stability test task,
Including：
Firstly, the first automation calibrating device carries out multiple stability test to evaluation electric energy meter, and test is obtained
Multiple error results are transmitted to automatic control system 110；
Then, automatic control system 110 calculates being averaged for multiple error results of the first automation calibrating device transmission
Value, and using the absolute difference of the average value and default measurement result as stably measured result.First automation calibrating device
Repeatedly (for example, 10 times) stability test, the multiple error results point repeatedly obtained after measurement can be carried out to evaluation electric energy meter
It Wei not y1, y2..., yn；Again by multiple error result y1, y2..., ynIt is transmitted to automatic control system 110, automation control
System 110 calculates the average value of multiple error resultAnd by the average valueWith upper the one of the first automation calibrating device
Secondary measurement resultAbsolute differenceAs the first automation calibrating device in estimation of stability this period
Stably measured result.
Step S104, automatic control system 110 compare stably measured result with preset error value, survey when stablizing
When measuring result less than preset error value, then the qualified stability of the first automation calibrating device is determined；When stably measured result is big
When preset error value, then determine that the stability of the first automation calibrating device is unqualified.
In embodiments of the present invention, preset error value is the absolute of the limits of error of the first automation calibrating device
Value, the first automation calibrating device use indicating value in use, that is, correction value use are not added, therefore, when the first automatic calibration
When the stably measured result of device is less than preset error value, then the qualified stability of the first automation calibrating device is determined；When
When the stably measured result of one automation calibrating device is greater than or equal to preset error value, then the first automation calibrating device is determined
Stability it is unqualified.
In embodiments of the present invention, after the completion of the stability test of evaluation electric energy meter, evaluation electric energy meter is replaced with into original
Intelligent electric energy meter is examined and determine so that former intelligent electric energy meter is transmitted to multiple automation calibrating devices by transmission line.
Step S105, complete the first automation calibrating device estimation of stability after, to multiple automation calibrating devices
Other automation calibrating devices in 140 carry out estimation of stability.
In embodiments of the present invention, after the completion of the estimation of stability of the first automation calibrating device, circulation executes step again
The process of rapid S101~S104 is to carry out estimation of stability to other automation calibrating devices.
The working principle of automatic calibration of electric energy meter assembly line method for estimating stability provided by the embodiment of the present invention is：
Firstly, preparing evaluation electric energy meter, wherein the multiple intelligent electric energy meters evaluated in the outer dimension and transmission line of electric energy meter are uniform
It causes；Secondly, any one intelligent electric energy meter on Utilization assessment electric energy meter replacement transmission line, so that transmission line is by the evaluation electric energy
Table and the other intelligent electric energy meters that do not replace are transmitted to multiple automation calibrating devices 140；Third, multiple automatic calibration dresses
Set 140 according to default verification task to evaluation electric energy meter examined and determine one by one, when evaluation electric energy meter through transmission line to preset
When verification task is the first automation calibrating device of stability test task, the first automation calibrating device is tried according to stability
It tests task and stably measured result is obtained to evaluation electric energy meter progress stability test；4th, automatic control system 110 will be stablized
Measurement result is compared with preset error value, when stably measured result is less than preset error value, then determines the first automation
The qualified stability of calibrating installation；When stably measured result is greater than or equal to preset error value, then the first automation inspection is determined
The stability for determining device is unqualified.After the completion of the stability test of evaluation electric energy meter, evaluation electric energy meter is replaced with into former intelligence
Electric energy meter is examined and determine so that former intelligent electric energy meter is transmitted to multiple automation calibrating devices by transmission line；Finally, completing first
After the estimation of stability of automation calibrating device, to other automation calibrating devices in multiple automation calibrating devices 140
Carry out estimation of stability.
In conclusion a kind of automatic calibration of electric energy meter assembly line method for estimating stability provided in an embodiment of the present invention,
For carrying out estimation of stability, the method packet to each automation calibrating device in automatic calibration of electric energy meter assembly line
It includes：Prepare evaluation electric energy meter, wherein the multiple intelligent electric energy meters evaluated in the outer dimension and transmission line of electric energy meter are consistent；
Utilization assessment electric energy meter replace transmission line on any one intelligent electric energy meter so that transmission line by the evaluation electric energy meter and other
Intelligent electric energy meter is transmitted to multiple automation calibrating devices；Multiple automation calibrating devices are according to default verification task to evaluation
Electric energy meter is examined and determine one by one, when evaluating electric energy meter through transmission line to the first automation calibrating device, the first automation
Calibrating installation carries out stability test to evaluation electric energy meter according to stability test task and obtains stably measured result, wherein the
One automation calibrating device is any one in multiple automation calibrating devices, and the default inspection of the first automation calibrating device
Determining task is stability test task；Automatic control system compares stably measured result with preset error value, when steady
When determining measurement result less than preset error value, then the qualified stability of the first automation calibrating device is determined；When stably measured knot
When fruit is greater than or equal to preset error value, then determine that the stability of the first automation calibrating device is unqualified.With it is traditional artificial
Calibrating mode is compared, and detection efficiency of the embodiment of the present invention is high and accuracy is high, can effectively promote calibrating production efficiency.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.It should be noted that：Similar label and letter exist
Similar terms are indicated in following attached drawing, therefore, once being defined in a certain Xiang Yi attached drawing, are then not required in subsequent attached drawing
It is further defined and explained.
Claims (5)
1. a kind of automatic calibration of electric energy meter assembly line method for estimating stability, which is characterized in that for being automated to electric energy meter
The each automation calibrating device examined and determine in assembly line carries out estimation of stability, and the automatic calibration of electric energy meter assembly line includes
Transmission line, handling equipment, multiple automation calibrating devices and automatic control system, the automatic calibration of electric energy meter flowing water
Line method for estimating stability includes：
Prepare evaluation electric energy meter, wherein the outer dimension of the evaluation electric energy meter and multiple intelligent electric energy on the transmission line
Table is consistent；
Any one intelligent electric energy meter on the transmission line is replaced using the evaluation electric energy meter, so that the transmission line should
Evaluation electric energy meter and other intelligent electric energy meters are transmitted to multiple automation calibrating devices；
The multiple automation calibrating device examines and determine evaluation electric energy meter according to default verification task one by one, when evaluation electric energy
When table is through transmission line to the first automation calibrating device, first automation calibrating device is according to stability test task
Stably measured result is obtained to evaluation electric energy meter progress stability test and is sent to the automatic control system, wherein institute
The first automation calibrating device is stated as any one in multiple automation calibrating devices, and first automation calibrating device
Default verification task be stability test task；
The automatic control system compares the stably measured result with preset error value, when the stably measured knot
When fruit is less than preset error value, then the qualified stability of first automation calibrating device is determined；When the stably measured knot
When fruit is greater than or equal to preset error value, then determine that the stability of first automation calibrating device is unqualified.
2. automatic calibration of electric energy meter assembly line method for estimating stability as described in claim 1, which is characterized in that described
One automation calibrating device is electrically connected with the automatic control system；
First automation calibrating device carries out stability test to evaluation electric energy meter according to stability test task and obtains surely
The step of determining measurement result, including：
First automation calibrating device carries out multiple stability test to the evaluation electric energy meter, and will test obtain it is more
A error result is transmitted to the automatic control system；
The automatic control system calculates the average value of multiple error results of the first automation calibrating device transmission, and
Using the absolute difference of the average value and default measurement result as the stably measured result.
3. automatic calibration of electric energy meter assembly line method for estimating stability as described in claim 1, which is characterized in that described steady
Qualitative test task be measurement voltage be voltage rating, measurement electric current be fundamental current, measurement power factor be 1.0 or 0.5.
4. automatic calibration of electric energy meter assembly line method for estimating stability as described in claim 1, which is characterized in that the electricity
Can table automatic calibration assembly line method for estimating stability further include：
After the estimation of stability for completing first automation calibrating device, in multiple automation calibrating devices it is other from
Dynamicization calibrating installation carries out estimation of stability.
5. automatic calibration of electric energy meter assembly line method for estimating stability as described in claim 1, which is characterized in that described pre-
If error amount is the absolute value of the limits of error of first automation calibrating device.
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| CN116558558A (en) * | 2023-04-21 | 2023-08-08 | 北京市计量检测科学研究院 | Metering performance comprehensive evaluation method of metering appliance based on type evaluation test |
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Application publication date: 20181116 |