CN103063276A - Electromagnetic flowmeter verification system - Google Patents

Abstract

In order to overcome the problems of difficult operation, high complexity, low reliability of the verification structure and low verification efficiency in the verification method of the electromagnetic flowmeter in the prior art, the present invention proposes a verification system of the electromagnetic flow meter, including an industrial computer , a standard table, a calibration module and a verification module, the calibration module and the verification module are built in the industrial computer; the calibration module has an identity authentication module, a display module, and a control module built in; the verification module has a built-in data processing module. The beneficial technical effect of the electromagnetic flowmeter verification system of the present invention is that the difficulty and complexity of the operation are reduced as much as possible, and various parameters and data can be intuitively displayed on the graphical interface, and the data collection and calculation of each flow point are automatically performed by the program. Complete, no need for operators to intervene in the data processing part, improve the reliability of calibration and verification operations, and improve work efficiency.

Description

The electromagnetic flowmeter verification system

 

Invention field

The present invention relates to the electromagnetic flowmeter Calibration Technology, specially refer to a kind of electromagnetic flowmeter verification system.

Background technology

Prior art electromagnetic flowmeter calibration method mainly is to carry out data communication with electromagnetic flowmeter to be examined and determine (hereinafter to be referred as table to be checked) and electromagnetic flowmeter standard scale (hereinafter to be referred as standard scale) by standard RS485 communications protocol by the hyperterminal software that carries in the computer system, operating personnel obtain the corresponding data of calibrating table and standard scale by the specific code of input in hyper terminal, then the data that show in the hyper terminal are input in the computation sheet, after in computation sheet, calculating correction factor, correction factor is sent in the calibrating table by hyper terminal by operating personnel again.Obviously, the problem that prior art electromagnetic flowmeter calibration method exists mainly be operate too numerous and diverse, operating personnel must learn the every code that instruction is corresponding by heart, also in hyperterminal software and computation sheet software, repeatedly input data, such operation not only needs could understand and finish whole operating process through the training of long period, and easily makes mistakes and affect work efficiency.In addition, the data that calibrating table and standard scale return scarcely are with any sign, operating personnel can not observe directly the title of current data, must keep the own data reading command that sends before firmly in mind and can know just what current data is, in addition, operating personnel's hand also needs each hand input-data to carry out data calculating and processing in computation sheet, has further increased difficulty and numerous and diverse degree of operation, and easily misoperation affects verification result.Obviously, it is larger that prior art electromagnetic flowmeter calibration method exists operation easier, and numerous and diverse degree is higher, the lower and calibrating problems such as efficient is lower of calibrating structural reliability.

Summary of the invention

The problems such as to exist operation easier larger in order to overcome prior art electromagnetic flowmeter calibration method, and numerous and diverse degree is higher, and the lower and calibrating efficient of calibrating structural reliability is lower, the present invention proposes a kind of electromagnetic flowmeter verification system.Electromagnetic flowmeter verification system of the present invention comprises industrial computer, standard scale, demarcating module and assay module, and demarcating module and assay module are built in industrial computer; Demarcating module is built-in with authentication module, display module, control module; The built-in data processing module of assay module; Described authentication module can authenticate the identity of request login verification system, described display module can show in real time the parameter, data and the result of calculation that collect and show in the graphical interfaces mode, described control module can be controlled mutual cooperation and the data communication of modules, set and demarcate or calibrating flow point and demarcation or calibrating time, the data of Real-time Collection table to be checked and standard scale, and table to be checked demarcated; Described data processing module can calculate and process the data of control module collection, and can carry out code conversion to the parameter of output or output; Described table to be checked refers to electromagnetic flowmeter to be examined and determine, and described standard scale is through the strict electromagnetic flowmeter of examining and determine and all reaching technical requirement.

Further, electromagnetic flowmeter verification system authentication module of the present invention can arrange the two-stage password, and a kind of is the complete operation authority, and another kind of is that historical calibrating data are checked authority; Described complete operation authority can enter demarcation and the calibrating actions menu is gone forward side by side rower calmly and the operation of calibrating, can read tested electromagnetic flowmeter raw parameter value and write new parameter value, and preserve verification result after calibrating is finished; Described data check that authority can carry out checking the verification result historical data.

Further, built-in standard 485 communications protocol of electromagnetic flowmeter verification system control module of the present invention, can be directly and calibrating table and standard scale carry out data communication.

Further, the calibrational capacity point that electromagnetic flowmeter verification system of the present invention is set is respectively 30%, 60% and 90% flow, and each point is demarcated three times.

Further, the data of electromagnetic flowmeter verification system Real-time Collection table to be checked of the present invention and standard scale refer to regularly instantaneous delivery and the aggregate data of table to be checked and standard scale be gathered by the demarcation of setting or calibrating flow point and demarcation or calibrating time.

Further, electromagnetic flowmeter verification system of the present invention is calculated by the data of control module collection and processing comprises, in calibration process, the table to be checked of control module collection and instantaneous delivery and the aggregate data of standard scale are carried out computing, obtain demarcating correction factor; In verification process, the table to be checked of control module collection and instantaneous delivery and the aggregate data of standard scale are carried out computing, to error result of calculation and the preservation of calibrating.

Further, electromagnetic flowmeter verification system of the present invention is demarcated table to be checked and is referred to correction factor is write table to be checked.

Further, the demarcating module of electromagnetic flowmeter verification system of the present invention and assay module can select to adopt relative method calibrating or volumetric method calibrating, described relative method calibrating is adopted the electromagnetic flowmeter standard scale to compare and is demarcated and the calibrating operation, and described volumetric method is to adopt when needed regular barrel to replace the electromagnetic flowmeter standard scale to demarcate and examine and determine operation.

The useful technique effect of electromagnetic flowmeter verification system of the present invention is to have reduced as much as possible operation easier and numerous and diverse degree, parameters and data can be presented on the graphical interfaces intuitively, the data acquisition of each flow point and calculating are finished voluntarily by program, do not need operating personnel to get involved data processing section, improve the reliability of demarcating and examining and determine operation, improved work efficiency.

Description of drawings

Accompanying drawing 1 is the structural representation of electromagnetic flowmeter verification system of the present invention.

Below in conjunction with drawings and the specific embodiments electromagnetic flowmeter verification system of the present invention is further described.

Embodiment

Accompanying drawing 1 is the structural representation of electromagnetic flowmeter verification system of the present invention, and as seen from the figure, electromagnetic flowmeter verification system of the present invention comprises industrial computer, standard scale, demarcating module and assay module, and demarcating module and assay module are built in industrial computer; Demarcating module is built-in with authentication module, display module, control module; The built-in data processing module of assay module; Described authentication module can authenticate the identity of request login verification system, described display module can show in real time the parameter, data and the result of calculation that collect and show in the graphical interfaces mode, described control module can be controlled mutual cooperation and the data communication of modules, set and demarcate or calibrating flow point and demarcation or calibrating time, the data of Real-time Collection table to be checked and standard scale, and table to be checked demarcated; Described data processing module can calculate and process the data of control module collection, and can carry out code conversion to the parameter of output or output; Described table to be checked refers to electromagnetic flowmeter to be examined and determine, and described standard scale is through the strict electromagnetic flowmeter of examining and determine and all reaching technical requirement.Electromagnetic flowmeter verification system authentication module of the present invention can arrange the two-stage password, and a kind of is the complete operation authority, and another kind of is that historical calibrating data are checked authority; Described complete operation authority can enter demarcation and the calibrating actions menu is gone forward side by side rower calmly and the operation of calibrating, can read tested electromagnetic flowmeter raw parameter value and write new parameter value, and preserve verification result after calibrating is finished; Described data check that authority can carry out checking the verification result historical data.Built-in standard 485 communications protocol of electromagnetic flowmeter verification system control module of the present invention, can be directly and calibrating table and standard scale carry out data communication.

For adapting to demarcation and the calibrating demand of distinct methods, the demarcating module of electromagnetic flowmeter verification system of the present invention and assay module can select to adopt relative method calibrating or volumetric method calibrating, described relative method calibrating is adopted the electromagnetic flowmeter standard scale to compare and is demarcated and the calibrating operation, and described volumetric method is to adopt when needed regular barrel to replace the electromagnetic flowmeter standard scale to demarcate and examine and determine operation.

Be the accuracy that guarantees to demarcate, the calibrational capacity point that electromagnetic flowmeter verification system of the present invention is set is respectively 30%, 60% and 90% flow, and each point is demarcated three times.On this basis, the data of electromagnetic flowmeter verification system Real-time Collection table to be checked of the present invention and standard scale refer to regularly instantaneous delivery and the aggregate data of table to be checked and standard scale be gathered by the demarcation of setting or calibrating flow point and demarcation or calibrating time.In calibration process, the table to be checked of control module collection and instantaneous delivery and the aggregate data of standard scale are carried out computing, obtain demarcating correction factor, and correction factor is write table to be checked.In verification process, the table to be checked of control module collection and instantaneous delivery and the aggregate data of standard scale are carried out computing, to error result of calculation and the preservation of calibrating.

During concrete calibrating, operating personnel are by password login electromagnetic flowmeter verification system of the present invention, if complete operation authority, then can enter and demarcate and the calibrating actions menu line operate of going forward side by side, can read tested electromagnetic flowmeter raw parameter value and write new parameter value, and after calibrating is finished, preserve verification result.If data are checked authority, then can only carry out checking the verification result historical data.The mode of the graphical interfaces that electromagnetic flowmeter verification system of the present invention provides provides visual in image operating environment for operating personnel, selected demarcation and calibration method are that relative method or volumetric method (are generally selected relative method, adopt the electromagnetic flowmeter standard scale as the standard scale of demarcating and calibrating is used), at first, to table input initialization parameter to be checked, open and regulate pipeline flow according to flow point, after pipeline flow is stablized, can begin to carry out proving operation.In calibration process, the instantaneous delivery of calibrating table and standard scale, total amount can be presented on the graphical interfaces in real time, operating personnel only need to choose calibrational capacity point and nominal time, demarcating module will carry out data acquisition and computing voluntarily, and after demarcation is finished the correction factor of each flow point is write the calibrating table.And each calibrational capacity point will be demarcated three times, to reduce error.And so forth, until all calibrational capacity points have all been demarcated finishes.

During concrete calibrating, operating personnel set calibrating flow point and calibrating time as required, and regulate pipeline flow by calibrating flow point, assay module can be voluntarily reads the verification process desired data from calibrating table and standard scale and calculates and process, obtain final verification result and be saved in the database, in order in the future inquiry.The data acquisition of each flow point and computing operation are all finished voluntarily by demarcating module and assay module, do not need operating personnel to intervene.Data processing module carries out cryptoguard to database, can back up, and makes mistakes or loses to prevent data.

Obviously, the useful technique effect of electromagnetic flowmeter verification system of the present invention is to have reduced as much as possible operation easier and numerous and diverse degree, parameters and data can be presented on the graphical interfaces intuitively, the data acquisition of each flow point and calculating are finished voluntarily by program, do not need operating personnel to get involved data processing section, improve the reliability of demarcating and examining and determine operation, improved work efficiency.

Claims (8)

1. An electromagnetic flowmeter verification system, characterized in that: the verification system includes an industrial computer, a standard meter, a calibration module and a verification module, and the calibration module and the verification module are built in the industrial computer; the calibration module is built with an identity authentication module and a display module , the control module; the verification module has a built-in data processing module; the identity authentication module can authenticate the identity of the request to log into the verification system, and the display module can display the collected parameters, data and calculation results in real time and display them in a graphical interface mode, The control module can control the mutual cooperation and data communication of each module, set the calibration or verification flow point and the calibration or verification time, collect the data of the meter to be inspected and the standard meter in real time, and calibrate the meter to be inspected; The data processing module can calculate and process the data collected by the control module, and can perform code conversion on the output or output parameters; the meter to be inspected refers to the electromagnetic flowmeter to be verified, and the standard meter has been strictly verified and all An electromagnetic flowmeter that meets the technical requirements. 2. The electromagnetic flowmeter verification system according to claim 1, characterized in that: the identity authentication module can be provided with two levels of passwords, one is full operation authority, and the other is historical verification data viewing authority; the full operation authority can be Enter the calibration and verification operation menu and perform the calibration and verification operation, which can read the original parameter value of the electromagnetic flowmeter under test and write the new parameter value, and save the verification result after the verification is completed; the data viewing authority can perform the verification View the result history data. 3. The electromagnetic flowmeter verification system according to claim 1, characterized in that: the control module has a built-in standard 485 communication protocol, which can directly communicate with the verification meter and the standard meter. 4. The electromagnetic flowmeter verification system according to claim 1, characterized in that: the set calibration flow points are respectively 30%, 60% and 90% of the flow, and each point is calibrated three times. 5. The electromagnetic flowmeter verification system according to claim 1 is characterized in that: real-time collection of the data of the meter to be inspected and the standard meter refers to the calibration or verification flow point and the calibration or verification time set, and the meter to be inspected and the meter to be inspected regularly. The instantaneous flow and total data of the standard meter are collected. 6. The electromagnetic flowmeter verification system according to claim 1 is characterized in that: calculating and processing the data collected by the control module includes, in the calibration process, the instantaneous flow and The total data is calculated and processed to obtain the calibration correction coefficient; during the verification process, the instantaneous flow and total data collected by the control module are calculated and processed, and the error calculation results of the verification are saved. 7. The electromagnetic flowmeter verification system according to claim 1, wherein the calibration of the meter to be inspected refers to writing the correction coefficient into the meter to be inspected. 8. The electromagnetic flowmeter verification system according to claim 1, characterized in that: the calibration module and the verification module can choose to adopt the comparison method verification or the volumetric method verification, and the comparison method verification uses the electromagnetic flowmeter standard table for comparative calibration and verification Operation, the volumetric method is to use standard barrels instead of electromagnetic flowmeter standard gauges for calibration and verification operations when needed.

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