CN107729405A - A kind of calibration cycle generation method of ATE - Google Patents
A kind of calibration cycle generation method of ATE Download PDFInfo
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- CN107729405A CN107729405A CN201710876787.1A CN201710876787A CN107729405A CN 107729405 A CN107729405 A CN 107729405A CN 201710876787 A CN201710876787 A CN 201710876787A CN 107729405 A CN107729405 A CN 107729405A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/24—Querying
- G06F16/245—Query processing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D18/00—Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/22—Indexing; Data structures therefor; Storage structures
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Abstract
The invention discloses a kind of calibration cycle generation method of ATE, belongs to ATE collimation technique field.Step 1: establish calibration network；Step 2: determine calibration parameter；Step 3: obtain the data that can characterize equipment under test and be directed to the across comparison of interchannel and the longitudinal direction contrast progress data analysis of channel interior and then select judgment threshold；Judge whether to need to reset or adjust calibration cycle；Step 4: by calibrating the prediction in main frame to calibration cycle, calibration schedule reminder is sent before calibration cycle expires；Calibrated if equipment person liable receives the predetermined period according to the predetermined period；Then calibrated conversely, not receiving the calibration cycle according to voluntarily setting calibration cycle, and calibrator (-ter) unit main frame is fed back to by main frame by this, until default calibration is reminded again a few days ago；Step 5: establish database.The present invention can be managed collectively to the status data in life of equipment, improve the efficiency of management.
Description
Technical field
The invention belongs to ATE collimation technique field, and in particular to a kind of calibration cycle of ATE
Generation method.
Background technology
Test system is a kind of currently used equipment for producing scientific research, currently used automatization testing technique energy
Enough it is automatically performed the functions such as excitation, measurement, data processing, display.Automatization test system refer to adopt computerized control, can be real
The system of existing automatic test.Development over time, test measuring apparatus are developed into meter by separate unit test measuring apparatus
The test equipment for including test hardware of calculation machine control, test hardware can generally include general purpose test equipment such as 34401A,
The equipment such as 525A；Also include test equipment such as PXI boards, VXI boards etc..Test hardware is connected with computer by bus, such as
PXI buses, vxi bus etc..Calibration in these equipment uses uses fixed time interval at present, first calibrate after according to
It manages the calibration for requiring to carry out designated time interval, and generally calibration cycle is 1 year or calibration cycle is 3 years；Calibrated
The startup of journey is carried out issuing task by people, calibration data unification taken care of, in case subsequently looking into being still taking human as master
Read.
Following defect be present in current method：
First, calibration cycle is generally 1 year or 3 years, the fixed cycle determine, not enough economy and science cause manpower,
The waste of financial resources；
Secondly, behavior adjustment management equipment, large number quipments management easily causes gaps and omissions；Calibration management lacks comprehensive management, solely
Standby lack of control resource is erected to plan as a whole to utilize；Calibration data management is managed with paper carrier, it is difficult to is had to history therein
Imitate data to utilize, quality control can not be formed to the whole state of equipment.
The content of the invention
The purpose of the present invention：Unicity, data mode analysis shortcoming of the present invention for current fixed confirmation calibration cycle,
A kind of calibration cycle generation method of ATE is provided, this method is based on the test data of equipment, using prediction
The method of reasoning carries out data analysis, finally reminds director to be calibrated after equipment state reaches an arranges value, and will
The calibration data of equipment forms a database, and the later stage for data preserves.
Technical scheme：A kind of calibration cycle generation method of ATE, comprises the following steps：
Step 1: establish calibration network；
Establish calibrator (-ter) unit and be calibrated the LAN of equipment, calibrator (-ter) unit main frame passes through school with being calibrated device Host
Pseudo-crystalline lattice is communicated, data upload, calibrator (-ter) unit sends equipment state and reminded；
Step 2: determine calibration parameter；
Analyze being calibrated test equipment, and equipment is calibrated as according to analysis using technical report and operation instruction
Meter characteristic, calibration method is determined, work out calibrating standard；
Step 3: determine calibration cycle；
Step 3.1, acquisition can characterize the data of equipment under test；
Step 3.2, for interchannel across comparison and channel interior longitudinal direction contrast carry out data analysis；Interchannel
Whether data analysis is mainly to consistent in same test process, to judge whether passage is problematic；
Step 3.3, selection judgment threshold；
The data predicted are obtained afterwards compared with the threshold value of setting, under illustrating if the data of prediction exceed threshold range
The data of individual predetermined period are without credibility, it is necessary to reset；
The adjustment of step 3.4, calibration cycle；
Step 4: the calibration cycle of prediction is calibrated；
By calibrating the prediction in main frame to calibration cycle, calibration schedule reminder is sent before calibration cycle expires；
Calibrated if equipment person liable receives the predetermined period according to the predetermined period；
Then calibrated conversely, not receiving the calibration cycle according to voluntarily setting calibration cycle, and it is anti-by main frame by this
Calibrator (-ter) unit main frame is fed to, until default calibration is reminded again a few days ago；
Step 5: database is established, for preserving data, in order to which follow-up calibration process uses.
Preferably, the calibrator (-ter) unit also includes：Calibration hardware and calibration software；
The standard hardware is provided with high-precision measurement criteria, modularized instrument, interface circuit, conditioning device and general survey
Try equipment；
The calibration software has cycle tests management, cycle tests execution, self-test, data management and user management work(
Can, the passage for calibration hardware is calibrated.
Preferably, in the step 3, the data that can characterize equipment state include：It is historical calibration data, built-in
Source comparison data, self-inspection data and BIT data.
Preferably, the calibration data is at least full tunnel, repertoire, the number of gamut scope in a cycle
According to.
Preferably, in the step 3, the data analysis is analyzed for the data after passage last calibration day,
According to the situation of change of the error analysis data of measured point, the prediction data in next analytical cycle is analyzed, and carry out data
Prediction.
Preferably, the period distances of the data analysis are one week.
Preferably, in the step 3, the adjustment of calibration cycle：Calibrate for the first time with 1 year as the cycle, calibration afterwards
Cycle increases or reduced based on one year cyclic vibration and according to calibration result.
The advantageous effects of technical solution of the present invention：
1) present invention establishes network management and is calibrated equipment, instead of manually periodically inquire about, report, the process such as reconciliation,
Inquired about by device Host very clear, improve the efficiency of equipment control；
2) present invention can accomplish to calibrate as desired by data prediction calibration cycle, rather than periodic calibration, save
Manpower, financial resource；
3) present invention use data base administration calibration data, be managed collectively data can to state in life of equipment by
Control, data can be analyzed, can inquired about, and improve the efficiency of management.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of a preferred embodiment of the calibration cycle generation method of ATE of the present invention；
Fig. 2 is the standard network signal of a preferred embodiment of the calibration cycle generation method of ATE of the present invention
Figure；
Fig. 3 is that the Standard Task of embodiment illustrated in fig. 2 issues schematic flow sheet；
Fig. 4 is that the calibration cycle of embodiment illustrated in fig. 2 determines schematic flow sheet.
Embodiment
To make the purpose, technical scheme and advantage that the present invention is implemented clearer, below in conjunction with the embodiment of the present invention
Accompanying drawing, the technical scheme in the embodiment of the present invention is further described in more detail.In the accompanying drawings, identical from beginning to end or class
As label represent same or similar element or the element with same or like function.Described embodiment is the present invention
Part of the embodiment, rather than whole embodiments.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to uses
It is of the invention in explaining, and be not considered as limiting the invention.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.Under
Embodiments of the invention are described in detail with reference to accompanying drawing for face.
As shown in figure 1, the calibration cycle generation method of ATE of the present invention, comprises the following steps：
Step 1: establish calibration network；
Establish and calibrator (-ter) unit and be calibrated the LAN of equipment, can be with by calibration network calibrator (-ter) unit main frame
It is calibrated device Host communication, data upload, calibrator (-ter) unit sends equipment state and reminded.In the local residing for a calibration main frame
In net, can exist simultaneously it is multiple be calibrated equipment, the function that calibration main frame has can be managed to the equipment being added into,
Control.
In the present embodiment, calibrator (-ter) unit should at least include calibration main frame, calibration hardware and calibration software, calibrating installation two
Divide and occur in the form of discrete or be overall, connected by bus mode.The operation of host computer control calibrator (-ter) unit hardware, data
The processes such as processing.
Calibrate main frame be that there is the equipment such as the unit, PC, industrial computer of test function, have computing, storage, operation program,
The functions such as serial communication, network；
Calibration hardware includes high-precision measurement criteria such as multi-function calibrator 5522A, 8508A etc. or is usually
The buses such as GPIB, VXI, PXI, LXI, modularized instrument, interface circuit, modulate circuit, general purpose test equipment etc. form.Calibration hardware
Meet the requirement on uncertainty in GJB5109.
Main frame and calibration hardware equipment are calibrated from profile can be discrete or be integral.Title
Definition is not limited to the form of equipment, and the ability of equipment is defined according to the function of equipment.
As shown in Figure 2：It is calibrated main frame and LAN is established by ethernet line with calibrator (-ter) unit main frame, facilitates data to lead to
News.LAN can ensure that transmission data can be communicated and send control signal by being calibrated device Host and calibrator (-ter) unit main frame.
The main frame of one calibrating installation can manage more simultaneously and be calibrated equipment.For the unit of a middle and small scale, it is only necessary to one
Platform equipment can completes calibrator (-ter) unit status monitoring and calibration.Calibration process alignment main frame can be only used for ensureing with hardware
Primary calibration uses.
In a calibration process, calibrator (-ter) unit hardware is not unique, and according to the different demands that is calibrated, calibrator (-ter) unit hardware can be with
Change on demand.As long as the ability for possessing control calibration hardware is ensured in calibration main frame.By calibration hardware and by school before calibration
Quasi- test hardware connection, is connected by the signal wire of matching.Calibration main frame passes through bus marco calibration hardware.
The wider model of selection of the hardware of calibration, i.e., comprising all devices at present with program control ability.Both can include
Generic calibration instrument such as 5522A, function generator etc. also include modular instrument such as vxi bus module, PXI bus modules, LXI
Bus module etc..
Step 2: calibration parameter determines；
Analyze being calibrated test equipment, using technical report, operation instruction as foundation, analyze meter characteristic, it is determined that
Calibration method, work out calibrating standard.Technical report, operation instruction, the calibrating standard of establishment preserve as a part for database
In main frame is calibrated.
Step 3: calibration cycle determines；
As shown in Figure 4：The determination process of calibration cycle includes 4 each several parts：Data storage, data analysis, threshold decision and
Cycle determines；
1) data storage：The Main Basiss that calibration cycle determines are the equipment states embodied by data.Energy is obtained first
The data for enough characterizing equipment state are the first steps that calibration cycle determines.For the equipment of a perfect in shape and function, general tool
The several standard sources having include built-in standard source and self-checking function.Self-checking function generally will carry out pyroelectric monitor before,
Some, which usually can be obtained, has the data of standard value.Some have the function in built-in source, can provide standard value in self-test,
Function therein is measured.Calibration data be full tunnel calibration at least one cycle be full tunnel, it is repertoire, complete
The data of range ability, there is authority.Therefore, by calibration data, built-in source correction data, self-test and BIT data.
2) data analysis：Data analysis is for the across comparison of interchannel and the longitudinal direction contrast of channel interior.Interchannel
Whether data analysis is mainly to consistent in same test process, to judge whether passage is problematic.It is last for a certain passage
Data after calibration day are analyzed, and data include calibration data and self-inspection data, pass through the error analysis data of measured point
Situation of change, the prediction data in next analytical cycle is analyzed using certain method, and use certain Forecasting Methodology
Carry out data prediction.Conventional has the solutions such as artificial neural network, LS-SVM models.The data analysis cycle is usually shorter
Better, the period modulation precision played is more careful.Such as in an equipment identical period, data interval time is
The analysis result of 1 week is better than the analytical cycle that data break is January；Similarly the available analyze data of a set of equipment is The more the better,
The data for being advantageous to analysis exclude external interference factor.
3) threshold decision：Performance threshold is to technical risk and being calibrated to for the specific performance of equipment and equipment user
A balance between this ability to bear.If the acceptable degree height of the acceptable degree excessive risk ability to bear of calibration cost can reduce
Threshold value；It is on the contrary then improve threshold value.After the data predicted compared with threshold value, if the data of prediction exceed threshold value model
Enclose, illustrate that the data of next predetermined period do not have credibility, it is necessary to reset.
4) period modulation：In this implementation, with 1 year for the cycle, calibration cycle afterwards will be tied according to calibration for calibration for the first time
Fruit increases or reduced.The adjustment in the cycle is also and service life of equipment, the degree of wear, frequency of usage etc. are relevant.Cycle
Adjustment issued by calibration main frame, but it is actual perform before need to be confirmed by equipment director, such as need other changes can be directly right
Cycle is readjusted.After change, software continuous carries out data period modulation.
Step 4: the calibration cycle of prediction is calibrated；
Calibration cycle refers to a time interval between calibrating twice, and the determination of calibration cycle is to be calibrated going through for equipment
History data are foundation, and these historical datas include historical calibration data, self-inspection data, built-in calibration source test data；By right
Measurement data analysis extraction characteristic quantity between each Measurement channel internal measurements and passage, characteristic quantity can represent this
The behavior pattern of equipment.Intelligent inference prediction is carried out to characteristic quantity, the measurement result of next predetermined period is predicted, is led to
Cross the situation of change of measurement data analytical equipment.Setting state threshold limit value, illustrate to fill if prediction data is better than the threshold value
Put in stable condition within the cycle；If prediction data is inferior to the threshold value, illustrate that device state within the cycle does not reach requirement, then
At least equipment does not reach requirement within the cycle.Prediction obtains new calibration cycle.
As shown in Figure 3：By calibrating the prediction in main frame to calibration cycle in the present embodiment, sent out before calibration cycle expires
Calibration schedule reminder is sent, is calibrated if equipment person liable receives the cycle according to the cycle；If the calibration is not received
According to voluntarily setting calibration cycle to be calibrated, calibrator (-ter) unit main frame then is fed back to by this by main frame for plan, until default school
Standard is reminded again a few days ago.
Selection calibrator (-ter) unit simultaneously connects：For needing to select calibrator (-ter) unit hardware according to calibration method before calibration tasks, firmly
Part will have program-controlled ability；Calibrator (-ter) unit is connected with device hardware is calibrated by cable, for Metrological Standard Equipment
For, usually using single cable connection；For the equipment of multichannel, it can be designed as direct-connected multichannel and connect together
The more efficient completion of the mode that connects.
Calibrate flow generation and perform：By it is known calibration Parameter design calibration software, the software have acquisition of information,
The functions such as Row control, generally comprise the work(such as cycle tests management, cycle tests execution, self-test, data management, user management
Energy.
Cycle tests editor is used to create new testing process, realizes that test sequence, flow such as redirect at the operation；Parameter setting
For the redjustment and modification of the information such as the passage configuration to test resource, sample frequency, the customization of fc-specific test FC demand sequence is completed.
Using calibration software as instrument, all hardware passage that equipment is calibrated to this is calibrated, and calibration data is saved
Into measuring apparatus.If it is source function to be calibrated equipment, calibration data is preserved to calibrator (-ter) unit, is if being calibrated equipment
Function is measured, then calibration data is preserved to being calibrated in equipment.Test execution unit is embedded in system software, is responsible for that sequence will be tested
Row are translated as executable command data, execution unit hardware, and the execution control final result for completing testing process is shown.
Step 5: database is established, for preserving data, in order to which follow-up calibration process uses；By data preserve to
In database, facilitate the use in subsequent calibration procedure, the long-term behaviour point of equipment is completed by certain quality control method
Analysis and control.
A kind of calibration cycle generation method of ATE of the present invention,
Establish calibrator (-ter) unit and be calibrated the network of equipment, equipment state management is clear comprehensive, and calibrator (-ter) unit main frame can
Preserving is included in the test collection of detailed technology index, equipment detailed technology index, the equipment such as device structure research and development during use
The information such as data.
Calibration cycle is predicted, calibration cycle is according to the reliability assessment etc. of the long-term running status of equipment, equipment
Evaluated, carry out calibration cycle and estimate.Hold labile, equipment that ambient condition is severe for equipment state, can be with
Reduce calibration intervals；For working environment is stable, equipment state not malleable, it can optionally increase equipment state.State is pre-
Estimating can be so that calibration cycle can ensure that equipment can keep value accurately and reliably with normal use, and and can enough reduces people
The waste of power, financial resources.
Foundation is calibrated device databases, and the data of the equipment in align mode manages LAN will periodically be uploaded to pipe
Equipment is managed, is analyzed, effectively equipment state can be commented by the calibration data of the data analysis bonding apparatus to equipment
Estimate, database can trace to the source.
It is last it is to be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations.To the greatest extent
The present invention is described in detail with reference to the foregoing embodiments for pipe, it will be understood by those within the art that：It is still
Technical scheme described in foregoing embodiments can be modified, or which part technical characteristic is equally replaced
Change；And these modifications or replacement, the essence of appropriate technical solution is departed from the essence of various embodiments of the present invention technical scheme
God and scope.
Claims (7)
1. the calibration cycle generation method of a kind of ATE, it is characterised in that comprise the following steps：
Step 1: establish calibration network；
Establish calibrator (-ter) unit and be calibrated the LAN of equipment, calibrator (-ter) unit main frame is with being calibrated device Host by calibrating net
Network is communicated, data upload, calibrator (-ter) unit sends equipment state and reminded；
Step 2: determine calibration parameter；
Analyze being calibrated test equipment, and using technical report and operation instruction as the metering that equipment is calibrated according to analysis
Characteristic, calibration method is determined, work out calibrating standard；
Step 3: determine calibration cycle；
Step 3.1, acquisition can characterize the data of equipment under test；
Step 3.2, for interchannel across comparison and channel interior longitudinal direction contrast carry out data analysis；The data of interchannel
Whether analysis is mainly to consistent in same test process, to judge whether passage is problematic；
Step 3.3, selection judgment threshold；
The data predicted are obtained afterwards compared with the threshold value of setting, are illustrated if the data of prediction exceed threshold range next pre-
The data for surveying the cycle do not have credibility, it is necessary to reset；
The adjustment of step 3.4, calibration cycle；
Step 4: the calibration cycle of prediction is calibrated；
By calibrating the prediction in main frame to calibration cycle, calibration schedule reminder is sent before calibration cycle expires；
Calibrated if equipment person liable receives the predetermined period according to the predetermined period；
Then calibrated according to voluntarily setting calibration cycle conversely, not receiving the calibration cycle, and fed back to by this by main frame
Calibrator (-ter) unit main frame, until default calibration is reminded again a few days ago；
Step 5: database is established, for preserving data, in order to which follow-up calibration process uses.
2. the calibration cycle generation method of ATE as claimed in claim 1, it is characterised in that：
The calibrator (-ter) unit also includes：Calibration hardware and calibration software；
The standard hardware is provided with high-precision measurement criteria, modularized instrument, interface circuit, conditioning device and universal test and set
It is standby；
The calibration software has cycle tests management, cycle tests execution, self-test, data management and subscriber management function, uses
Calibrated in the passage of calibration hardware.
3. the calibration cycle generation method of ATE as claimed in claim 1, it is characterised in that：The step 3
In, the data that can characterize equipment state include：Historical calibration data, built-in source comparison data, self-inspection data and BIT numbers
According to.
4. the calibration cycle generation method of ATE as claimed in claim 3, it is characterised in that：The calibration data
Full tunnel, repertoire, the data of gamut scope at least in a cycle.
5. the calibration cycle generation method of ATE as claimed in claim 1, it is characterised in that：The step 3
In, the data analysis is analyzed for the data after passage last calibration day, according to the error analysis data of measured point
Situation of change, analyze the prediction data in next analytical cycle, line number of going forward side by side it is predicted that.
6. the calibration cycle generation method of ATE as claimed in claim 5, it is characterised in that：The data analysis
Period distances be one week.
7. the calibration cycle generation method of ATE as claimed in claim 1, it is characterised in that：The step 3
In, the adjustment of calibration cycle：Calibration for the first time is with 1 year for the cycle, and calibration cycle afterwards is based on one year cyclic vibration and foundation
Calibration result increases or reduced.
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Application publication date: 20180223 |