CN104950812A - Method and system for carrying out online testing on performance of numerical control system based on motor analog loading - Google Patents
Method and system for carrying out online testing on performance of numerical control system based on motor analog loading Download PDFInfo
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- CN104950812A CN104950812A CN201510338155.0A CN201510338155A CN104950812A CN 104950812 A CN104950812 A CN 104950812A CN 201510338155 A CN201510338155 A CN 201510338155A CN 104950812 A CN104950812 A CN 104950812A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/406—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by monitoring or safety
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Abstract
The invention discloses a method and a system for carrying out online testing on performance of a numerical control system based on motor analog loading. The system comprises a tested numerical control system, an accompany testing numerical control system, a remote data collecting unit and a remote server, wherein the accompany testing numerical control system is used for supplying load to the tested numerical control system and is simultaneously used as a measuring tool of the tested numerical control system; the accompany testing numerical control system is connected with the tested numerical control system through an elastic coupler; the accompany testing numerical control system and the tested numerical control system are respectively connected with the remote data collecting unit. The method comprises the steps of loading of the load of the tested numerical control system, online running testing of G codes of the tested numerical control system, real-time obtaining of actual data, online analysis on the performance of the numerical control system, and the like. The system and the method for carrying out online testing on the performance of the numerical control system based on the motor analog loading, disclosed by the invention, have the advantages that the structure is simple, the operation is convenient, and the like; multiple load situations can be simulated, a testing process can be remotely monitored in real time, testing data can be remotely checked, and unified management on the testing data is realized.
Description
Technical field
The invention belongs to digital control system technical field of performance test, more specifically, relate to a kind of on-line testing method and system of the digital control system performance based on motor simulation loading.
Background technology
Digital control system is the abbreviation of digital control system, it is according to the control program stored in computer memory, perform part or all of Numerical Control function, and be furnished with the dedicated computer system of interface circuit and servo drive, one or more plant equipment action control is realized by the digital command utilizing numeral, word and symbol to form, the widely used digital control system of industrial automation, digital control system all needs to carry out performance test and reliability testing before dispatching from the factory.
Test macro general at present adopts usually to dragging form, accompanies measured motor to be in power generation mode, resistance consumption electric energy, and the load of this kind of disposal route cannot determine the size of load due to problems such as heatings.And existing method of testing is usually only for servo-drive system, on-line detecting system is generally the data being received the sensor acquisition be arranged on servomotor by development data capture card, then virtual instrument is sent the data to, virtual instrument carries out calculation process to data, and data is shown in real time.Pass through the method, the indexs such as its difference between CW and CCW speeds rate, speed regulation, fluctuation of speed coefficient, speed ratio, overshoot can be recorded, can judge servo-drive system performance condition according to these indexs, moment load mode conventional in test process utilizes magnetic powder brake, inertia disc, motor etc.
But, existing detection method operating process is complicated, need to test separately various index, testing and characterization cannot be carried out to the overall performance of digital control system, automaticity is low, and simultaneously conventional moment load mode also exists the problem being difficult to realize load in Automated condtrol moment size.
Summary of the invention
For above defect or the Improvement requirement of prior art, the invention provides a kind of on-line testing method and system of digital control system performance, its mode utilizing motor simulation to load realizes the loading of digital control system, makes the loading of load simply accurate, and can simulate multiple loading condition; Simultaneously, the present invention runs one section of G code by digital control system, and according to the comparison operation of director data and real data, the combination property of digital control system can be obtained in real time, effectively can solve existing detection method need carry out test separately problem to various index accordingly; In addition, the present invention, also by arranging remote server and cloud service website, realizing the remote on-line monitoring of digital control system performance and the inquiry of test data and management, being thus particularly useful for on-line checkingi and the management of multiple stage digital control system performance.
For achieving the above object, according to one aspect of the present invention, propose a kind of digital control system performance online method of testing loaded based on motor simulation, it is characterized in that, comprise the steps:
(1) simulation loading of measurand Ore-controlling Role load:
Set up one group corresponding with measurand Ore-controlling Role to accompany survey digital control system, this is accompanied and surveys digital control system and comprise accompanying and survey numerical control device, accompany and survey servo-driver and accompany survey servomotor; By described accompany survey to send instructions under numerical control device everywhere in accompany described in torque mode survey servo-driver control described in accompany and survey servomotor and produce moment; Above-mentioned moment passes to the tested servomotor in described measurand Ore-controlling Role by spring coupling, realizes the simulation loading of measurand Ore-controlling Role load with this;
(2) on-line operation of measurand Ore-controlling Role:
In the tested numerical control device of described measurand Ore-controlling Role, be loaded into G code, and this G code is converted into the discernible movement instruction of tested servo-driver, control described tested servomotor by this movement instruction and produce motion; The director data corresponding with described movement instruction sends to remote data acquisition unit;
(3) Real-time Obtaining of real data:
In the whole process of described measurand Ore-controlling Role on-line operation, described in accompany and survey servomotor and measure the real data that described measurand Ore-controlling Role reflects based on described movement instruction in real time, this real data sends to remote data acquisition unit equally;
(4) on-line analysis of digital control system performance:
Described remote data acquisition unit is utilized to carry out comparing calculation to the described director data obtained by step (2) and (3) and described real data, obtain the characterization parameter for characterizing digital control system combination property, in this way, the on-line testing of digital control system combination property is realized.
As preferred further, described director data and described real data include rotating speed and the positional information of described tested servomotor.
As further preferred, described tested numerical control device and accompany and survey numerical control device and described remote data acquisition unit all carries out data interaction by ICP/IP protocol.
As further preferred, described in accompany the maximum moment surveying servomotor to be greater than the maximum moment of described tested servomotor.
According to another aspect of the present invention, propose a kind of Online Transaction Processing of the digital control system performance based on motor simulation loading, it is characterized in that, this system comprises measurand Ore-controlling Role, accompanies and survey digital control system and remote server, wherein:
This measurand Ore-controlling Role comprises tested numerical control device, tested servo-driver and tested servomotor; Bus is all adopted to be connected between described tested numerical control device with described tested servo-driver, between described tested servo-driver and described tested servomotor;
This is accompanied survey digital control system to comprise and accompanies survey numerical control device, be in accompanying of torque mode surveys servo-driver and accompanies survey servomotor; Described accompany survey numerical control device with described accompany to survey between servo-driver, described in accompany survey servo-driver and described accompany to survey between servomotor all adopt bus to be connected; Wherein, survey servomotor is accompanied to be connected by spring coupling with between described tested servomotor described in;
Described tested numerical control device is all connected with remote data acquisition unit by netting twine with described survey numerical control device of accompanying, and the data of collection transmit and are kept in remote server by this remote data acquisition unit in real time.
As further preferred, this test macro is also provided with cloud service website, and this cloud service website is by remote server described in Internet connected reference, so that the checking of all data in described remote server.
As preferred further, this cloud service website realizes the long-range real-time status monitoring of test process by the data-interface that remote data acquisition unit provides.
In general, the above technical scheme conceived by the present invention compared with prior art, mainly possesses following technological merit:
1. the present invention is provided with and a set ofly accompanies survey digital control system, control to accompany survey servomotor to realize loading the load of measurand Ore-controlling Role servomotor by the accompanying survey servo drive unit be under torque mode control, make the loading of load simply accurate by this mode, and multiple loading condition can be simulated easily; In addition, while realization loads, accompany survey scrambler on servomotor can as the measurement mechanism of measurand Ore-controlling Role, with the real data of Real-time Collection measurand Ore-controlling Role work, these data are surveyed servo drive unit and are sent to through accompanying and accompany survey digital control system.
2. the present invention is without the need to testing different performance index respectively again, the present invention is provided with one section of G code, runs one section of this G code certain hour by digital control system, then according to the comparison operation of director data and real data, just can the combination property of Real-time Obtaining digital control system, test simple and convenient.
3. data acquisition unit of the present invention can be placed on the PC of any networking, and it connects remote server by Internet, the data of collection to be transmitted in real time and to be kept in remote server.By arranging the cloud service website be connected with remote server and remote data acquisition unit, making the remote on-line monitoring that can realize the current test case of digital control system no matter wherever, comprising the information such as speed, position; And checking of test result historical data can be convenient to, can also check by the time dependent trend graph of the evaluation result of Performance Evaluation Algorithm to historical test data; And the comparative analysis of various needs can be carried out, even directly the test G code of setting directly can be issued in test digital control system, achieve the good management of test data.
Accompanying drawing explanation
Fig. 1 is the Online Transaction Processing schematic diagram of a kind of digital control system performance based on motor simulation loading of the present invention;
Fig. 2 is the flow chart of data processing figure of Tele-Acquisition unit of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.In addition, if below in described each embodiment of the present invention involved technical characteristic do not form conflict each other and just can mutually combine.
Fig. 1 is the Online Transaction Processing schematic diagram of a kind of digital control system performance based on motor simulation loading of the present invention, and this system comprises measurand Ore-controlling Role, accompanies and survey digital control system and remote server, wherein:
This measurand Ore-controlling Role comprises tested numerical control device 1, tested servo-driver 2 and tested servomotor 3; Bus is all adopted to be connected between described tested numerical control device 1 with tested servo-driver 2, between tested servo-driver 2 and tested servomotor 3;
This is accompanied survey digital control system to comprise and accompanies survey numerical control device 7, be in accompanying of torque mode surveys servo-driver 6 and accompanies survey servomotor 5; Described accompanying is surveyed numerical control device 7 with accompanying and is surveyed between servo-driver 6, accompanies to survey servo-driver 6 and accompany to survey between servomotor 5 and all adopt bus to be connected; Wherein, survey servomotor 5 is accompanied to be connected by spring coupling 4 with between described tested servomotor 3 described in;
Described tested numerical control device 1 is all connected with remote data acquisition unit 8 by netting twine with described survey numerical control device 7 of accompanying, and the data of collection are sent in remote server by this remote data acquisition unit 8 in real time.
In addition, servomotor 3,5 is fixing on the table by support, and numerical control device 1,7 and data acquisition unit carry out data interaction by ICP/IP protocol.
The on-line testing method of a kind of digital control system performance based on motor simulation loading of the present invention, concrete steps are as follows:
(1) loading of measurand Ore-controlling Role load: send instructions for 7 times by accompanying survey numerical control device and control to accompany survey servomotor 5 to produce moment in the survey servo-driver 6 of accompanying of torque mode everywhere; Above-mentioned moment passes to the tested servomotor 3 in described measurand Ore-controlling Role by spring coupling 4, realizes the loading of the load of measurand Ore-controlling Role with this;
(2) on-line operation of measurand Ore-controlling Role: be loaded into G code in the tested numerical control device 1 of described measurand Ore-controlling Role, and this G code is converted into the discernible movement instruction of tested servo-driver 2, control tested servomotor 3 by this movement instruction and produce motion; The director data of described movement instruction sends to remote data acquisition unit 8 by netting twine;
(3) Real-time Obtaining of real data: in the process of described measurand Ore-controlling Role on-line operation, the real data that described and instruction data of accompanying survey servomotor 5 to measure described measurand Ore-controlling Role are in real time corresponding, this real data sends to remote data acquisition unit 8 by netting twine equally;
(4) on-line analysis of digital control system performance: utilize described remote data acquisition unit 8 to carry out comparing calculation to the described director data obtained by step (2) and (3) and real data, obtain the characterization parameter for characterizing digital control system combination property, in this way, the on-line testing of digital control system combination property is realized.
Wherein, digital control system runs the appointment G code write, this G code content include its carry out difference between CW and CCW speeds rate, speed regulation, fluctuation of speed coefficient, speed ratio, overshoot is tested separately time all operation conditionss, simultaneously repeatedly repeat this process; In addition, most of situation that can run under further comprises one section of even in everyday situations in G code, as the situation such as plane machining, arc machining.By gathering the real data of digital control system director data in operational process and servomotor, and by Data Comparison algorithm, the registration between them, similarity are compared and draw a coefficient value RS describing the gap size of director data and real data, and the performance of digital control system in motion control can be embodied by the gap of director data and real data, therefore comprehensively state the combination property of digital control system in motion control with this RS coefficient.
The present invention controls to accompany survey servomotor to realize loading the load of tested digital control system servomotor by the accompanying survey servo drive unit be under torque mode control, first survey servo drive unit will be accompanied to be set to be operated in torque mode under, then send instructions accompanying to survey in numerical control device to write under PLC ladder diagram comes, multiple loading condition can be simulated easily by this mode, this kind of mode is while realization loads, accompany the scrambler surveyed on servomotor can as the measurement mechanism of measurand Ore-controlling Role, gather the real data of measurand Ore-controlling Role work, these data will accompany survey numerical control device through accompanying survey servo-driver to send to, and be sent in remote data acquisition unit further by netting twine, the Real-time Collection of real data is realized with this.
This invention exploits one for carrying out the remote data acquisition unit of data communication with digital control system, it is by netting twine Real-time Obtaining digital control system real-time status this moment, comprise the information such as rotating speed, position, multinomial data types such as comprising rotating speed, position, encoder position can be monitored simultaneously, and the correlation curve of each information can be drawn out simultaneously, to single data type, as rotating speed, the display of data can be provided in real time.The detailed data of all test processs leaves in remote server all in the form of a file, and the associated detailed information of its file is all deposited in a database.The situation of test can be checked easily by setting up cloud service website, comprise the object of test, the number of times of test, the result etc. of each test, can be reduced the curve map of real data and director data in the test process once tested arbitrarily by the position at database lookup file place simultaneously, even, any two groups of tested objects two group data the same with test data type can be selected to compare, realize same digital control system even mutually the comparing of different NC system.Described nominal torque of accompanying the nominal torque surveying servomotor 5 to be greater than tested servomotor.
In addition, before testing begins, should first open remote data acquisition unit and complete configuration, when the numerical control device in measurand Ore-controlling Role writes G code, after pressing loop start key, this unit will obtain this signal, automatic activation starts data acquisition, and test formally starts, when feeding maintenance pressed by numerical control device, data acquisition also can by automatic pause, until loop start key is pressed again.
Fig. 2 is the flow chart of data processing figure of Tele-Acquisition unit of the present invention, this remote data acquisition unit have realize display servomotor running status detailed data, test data cloud store, analyze data, the function such as the external interface that provides data to transmit.The concrete steps of its data processing are as follows: carry out initialization after starting the data acquisition software in data acquisition unit, the all digital control systems in server belonging to this user are searched according to current test subscriber after initialization success, and connecting test is carried out to it, when the digital control system of successful connection, software activation test starting function; Software default select this user in a database belonging to the First of digital control system as the object of current test, the test event next needed for configuration, comprises rotating speed, position etc., finally clicks start button; Data acquisition software starts the run signal waiting for digital control system, and when getting the run signal of digital control system, the functions such as data acquisition, data storage are activated, and data acquisition software starts; In test process, director data and real data show in real time; After the test is ended, all data files are saved as file, and the relevant information of this file is stored in database simultaneously; What Calling MATLAB was write analyzes data file for the assembly analyzing data, finally draws evaluation result, and preserves in a database.The data external interface of data acquisition unit is based on MTConnect agreement, and the realization that can be the multiple cloud monitoring such as webpage provides Data Source interface.
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1., based on the digital control system performance online method of testing that motor simulation loads, it is characterized in that, comprise the steps:
(1) simulation loading of measurand Ore-controlling Role load:
Set up one group corresponding with measurand Ore-controlling Role to accompany survey digital control system, this is accompanied and surveys digital control system and comprise accompanying and survey numerical control device (7), accompany and survey servo-driver (6) and accompany survey servomotor (5); By described accompany survey numerical control device (7) under send instructions everywhere in accompany described in torque mode survey servo-driver (6) control described in accompany and survey servomotor (5) and produce moment; Above-mentioned moment passes to the tested servomotor (3) in described measurand Ore-controlling Role by spring coupling (4), realize the simulation loading of measurand Ore-controlling Role load with this;
(2) on-line operation of measurand Ore-controlling Role:
G code is loaded in the tested numerical control device (1) of described measurand Ore-controlling Role, and this G code is converted into tested servo-driver (2) discernible movement instruction, control described tested servomotor (3) by this movement instruction and produce motion; The director data corresponding with described movement instruction sends to remote data acquisition unit (8);
(3) Real-time Obtaining of real data:
In the whole process of described measurand Ore-controlling Role on-line operation, described accompanying surveys the real-time real data measured described measurand Ore-controlling Role and reflect based on described movement instruction of servomotor (5), and this real data sends to remote data acquisition unit (8) equally;
(4) on-line analysis of digital control system performance:
Described remote data acquisition unit (8) is utilized to carry out comparing calculation to the described director data obtained by step (2) and (3) and described real data, obtain the characterization parameter for characterizing digital control system combination property, in this way, the on-line testing of digital control system combination property is realized.
2. a kind of on-line testing method of digital control system performance loaded based on motor simulation as claimed in claim 1, it is characterized in that, described director data and described real data include rotating speed and the positional information of described tested servomotor (3).
3. a kind of on-line testing method of digital control system performance loaded based on motor simulation as claimed in claim 1 or 2, it is characterized in that, described tested numerical control device (1) and accompany survey numerical control device (7) with described remote data acquisition unit (8) all carry out data interaction by ICP/IP protocol.
4. a kind of on-line testing method of digital control system performance loaded based on motor simulation as claimed in claim 3, it is characterized in that, described in accompany the maximum moment surveying servomotor (5) to be greater than the maximum moment of described tested servomotor (3).
5. the Online Transaction Processing of the digital control system performance loaded based on motor simulation, it is for realizing the on-line testing method of the digital control system performance based on motor simulation loading as described in any one of claim 1-4, it is characterized in that, this system comprises measurand Ore-controlling Role, accompanies and survey digital control system and remote server, wherein:
This measurand Ore-controlling Role comprises tested numerical control device (1), tested servo-driver (2) and tested servomotor (3); Between described tested numerical control device (1) with described tested servo-driver (2), between described tested servo-driver (2) and described tested servomotor (3), bus is all adopted to be connected;
This is accompanied survey digital control system to comprise and accompanies survey numerical control device (7), be in accompanying of torque mode surveys servo-driver (6) and accompanies survey servomotor (5); Described accompany survey numerical control device (7) with described accompany to survey between servo-driver (6), described in accompany survey servo-driver (6) and described accompany to survey between servomotor (5) all adopt bus to be connected; Wherein, survey servomotor (5) is accompanied to be connected by spring coupling (4) with between described tested servomotor (3) described in;
Described tested numerical control device (1) accompanies survey numerical control device (7) to be all connected with remote data acquisition unit (8) by netting twine with described, and the data of collection transmit and are kept in remote server by this remote data acquisition unit (8) in real time.
6. a kind of Online Transaction Processing of digital control system performance loaded based on motor simulation as claimed in claim 5, it is characterized in that, this test macro is also provided with cloud service website, this cloud service website is by remote server described in Internet connected reference, so that the checking of all data in described remote server.
7. a kind of Online Transaction Processing of digital control system performance loaded based on motor simulation as claimed in claim 6, it is characterized in that, this cloud service website realizes the long-range real-time status monitoring of test process by the data-interface that remote data acquisition unit (8) provides.
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| CN115542158A (en) * | 2022-11-29 | 2022-12-30 | 北京卓翼智能科技有限公司 | Unmanned aerial vehicle motor test system |
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| CN104950812B (en) | 2018-02-23 |
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