CN115790965A - Automatic calibration, acquisition and analysis system and method for force measuring wheel set - Google Patents
Automatic calibration, acquisition and analysis system and method for force measuring wheel set Download PDFInfo
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Abstract
The invention discloses an automatic calibration, acquisition and analysis system and method for a force measuring wheel set; wherein the system includes: a calibration control subsystem and a data management subsystem; the calibration control subsystem comprises an automatic loading control module and a wheel set rotation control module; the automatic loading control module is used for controlling the actuator to apply different pressures to the wheel pair to be tested step by step according to a preset condition; the wheel set rotation control module is used for controlling the wheel shaft rotator to rotate according to a preset condition; the data management subsystem comprises an automatic data acquisition module and an automatic data analysis module; the automatic data acquisition module is used for calling a corresponding acquisition method according to a preset rule, setting a corresponding acquisition start-stop triggering mode and acquiring a plurality of corresponding wheel set pressure values under different preset conditions; the data automatic analysis module is used for analyzing the pressure value of the wheel set; by the aid of the system, automatic test in the test process can be realized in the wheel-rail force calibration test process of the force measuring wheel, and data can be automatically analyzed.
Description
Technical Field
The invention belongs to the technical field of calibration acquisition, and particularly relates to an automatic calibration acquisition analysis system and method for a force measuring wheel set.
Background
A calibration control system and a data acquisition system in a wheel-rail force calibration test platform of a conventional force measuring wheel are separated, and the data acquisition and calibration processes lack synchronism; and the calibration process needs manual loading control step by step, the obtained data needs manual analysis step by step, and then the wheel is rotated to carry out next angle loading, so that the problems existing in the patch quality or the calibration process and the like are difficult to find in time.
Therefore, how to realize the automatic test of the test process and automatically analyze data in the wheel-rail force calibration test process of the force measuring wheel, which becomes a key problem of the current research.
Disclosure of Invention
In view of the above problems, the present invention provides an automatic calibration, acquisition and analysis system and method for a load-measuring wheel set, which can achieve automatic test in the test process and automatically analyze data simultaneously in the wheel-rail force calibration test process for the load-measuring wheel set.
On one hand, the embodiment of the invention provides an automatic calibration, acquisition and analysis system for a force measuring wheel set, which is applied to a force measuring wheel set test bed and comprises the following components: a calibration control subsystem and a data management subsystem;
the calibration control subsystem comprises an automatic loading control module and a wheel set rotation control module;
the automatic loading control module is used for controlling the actuator to apply different pressures to the wheel pair to be tested step by step according to a preset condition;
the wheel set rotation control module is used for controlling the wheel shaft rotator to rotate according to a preset condition so as to realize the switching of different loading angles of the wheel set;
the data management subsystem comprises an automatic data acquisition module and an automatic data analysis module;
the automatic data acquisition module is used for calling a corresponding acquisition method according to a preset rule, setting a corresponding acquisition start-stop triggering mode and acquiring a plurality of corresponding wheel set pressure values under different preset conditions;
the data automatic analysis module is used for analyzing the pressure value of the wheel pair.
Furthermore, the automatic loading control module comprises a vertical force loading sub-module and a transverse force loading sub-module;
the vertical force loading submodule is used for controlling the vertical force actuator to realize loading of different vertical forces;
the transverse force loading submodule is used for controlling the transverse force actuator to realize different transverse force loading.
Further, the data automatic analysis module comprises a reading identification sub-module and a judgment sub-module;
the reading and identifying sub-module is used for reading the wheel set pressure value, drawing a data curve and identifying singular point data from the data curve;
the judgment submodule is used for judging the wheel rotation angle and comparing and judging the singular point data with a preset range.
Further, the judgment sub-module is in communication connection with the automatic data acquisition module;
and if the singular point data is not in the preset range, the judgment submodule feeds back a corresponding signal to the automatic data acquisition module, and the automatic data acquisition module carries out the loading test again.
Further, the automatic data analysis module also comprises an early warning sub-module; the judgment sub-module and the early warning sub-module;
and if the singular point data still exist in the re-acquired data, the judgment submodule sends a corresponding signal to the alarm submodule, and the alarm submodule gives an alarm.
Further, the judgment sub-module is in communication connection with the automatic loading control module;
and if the singular point data are in the preset range, the judgment sub-module feeds back corresponding signals to the automatic loading control module, and the automatic loading control module stops loading at the moment.
Further, the automatic loading control module is in communication connection with the wheel set rotation control module;
after the automatic loading control module stops loading, the judgment submodule judges whether the current angle force measuring process is finished or not;
if the current angle force measuring process is finished, the judgment sub-module feeds back corresponding signals to the wheel set rotation control module, and the wheel set rotation control module controls the wheel to rotate;
if the current angle force measuring process is not finished, the judgment sub-module feeds back a corresponding signal to the automatic loading control module; and at the moment, the automatic loading control module is switched to the transverse force loading submodule to load the transverse force on the wheel pair.
On the other hand, the embodiment of the invention also provides an automatic calibration, acquisition and analysis method for the force measuring wheel set, which is applied to the system and comprises the following steps:
s1, controlling an actuator to apply pressure to a wheel pair to be tested through an automatic loading control module;
s2, calling a corresponding acquisition method through an automatic data acquisition module according to a preset rule, and setting a corresponding acquisition start-stop triggering mode to realize acquisition of corresponding wheel set pressure values under different preset conditions;
and S3, analyzing the pressure value of the wheel pair through an automatic data analysis module.
Further, the S3 specifically includes:
s31, reading the pressure value of the wheel pair through a reading identification submodule in the automatic data analysis module, drawing a data curve, and identifying singular point data from the data curve;
s32, comparing and judging the singular point data with a preset value through a judging submodule in the data automatic analysis module;
if the singular point data accord with the preset value, the automatic loading control module stops loading, and at the moment, a judgment submodule in the data automatic analysis module judges whether the current angle force measurement process is finished or not;
and if the singular point data do not accord with the preset value, re-executing the S2.
Further, in S32, the determining submodule determines whether the current angle force measuring process is completed, and the corresponding determining contents include:
if the angle force measuring process is finished, the judgment sub-module feeds back a corresponding signal to the wheelset rotation control module, and the wheelset rotation control module controls the wheelset to rotate;
if the angle force measuring process is not finished, the judgment sub-module feeds back corresponding signals to the automatic loading control module; and at the moment, the automatic loading control module is switched to the transverse force loading submodule, transverse force loading is carried out on the wheel pair, and S2 is executed again.
Compared with the prior art, the automatic calibration, acquisition and analysis system and method for the force measuring wheel set, which are disclosed by the invention, have the following beneficial effects:
the invention realizes the automation and standardization of the test process by the calibration control system and the data acquisition system of the wheel-rail force calibration test platform for automatically controlling the force measuring wheel. The calibration control system is used as a control platform for calibrating the experiment table, the data management system is used as a data acquisition platform, after a preset mode is fused and unified control is carried out, automatic test of the test process can be realized, data can be automatically analyzed, and the problem of the test process can be timely found while the test efficiency is improved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a frame diagram of an automatic calibration, acquisition and analysis system for a load-measuring wheel set according to an embodiment of the present invention.
Fig. 2 is an application schematic diagram of an automatic calibration, acquisition and analysis system for a load-measuring wheel set provided by an embodiment of the invention.
Fig. 3 is a schematic diagram of the automatic calibration, acquisition and analysis system for a load-measuring wheel set applied to a patch scheme test according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of the automatic calibration, acquisition and analysis system for a load-measuring wheel set provided by the embodiment of the present invention applied to calibration of a load-measuring wheel set.
Fig. 5 is a schematic diagram illustrating an application of the automatic calibration, acquisition and analysis system for a force-measuring wheel set provided by the embodiment of the invention to recheck a calibration result.
Fig. 6 is a flowchart of an automatic calibration, acquisition and analysis method for a load-measuring wheel set according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Referring to fig. 1, an embodiment of the present invention provides an automatic calibration, acquisition and analysis system for a load-measuring wheel set, which is applied to a test bed for the load-measuring wheel set, and the system includes a calibration control subsystem and a data management subsystem; the calibration control subsystem mainly controls the test platform and the force measuring wheel set to realize automatic loading of the test platform and automatic rotation of the wheel set; specifically, the calibration control subsystem comprises an automatic loading control module and a wheel set rotation control module;
referring to fig. 2, the automatic loading control module is configured to control the vertical force actuator and the transverse force actuator to apply different pressures to the wheel pair to be tested step by step according to a preset condition; the automatic loading control module comprises a vertical force loading submodule and a transverse force loading submodule; the vertical force loading submodule is used for controlling the vertical force actuator to realize loading of different vertical forces; and the transverse force loading submodule is used for controlling the transverse force actuator to realize different transverse force loads. The automatic loading control module can automatically load according to the loading direction, the stress application size, the loading rate, the stress application duration and the vertical and horizontal stress switching intermittent time preset by the system; for example, several values such as 40, 50, 60, 70kN of vertical force calibration are loaded; based on the preset condition, the preset condition can be as follows: (1) Controlling the actuator to be loaded to 40kN at the speed of 2kN/s and then to stay for 30s; (2) Then controlling the actuator to load the actuator to 50kN at the speed of 2kN/s, and then stopping for 30s; (3) Controlling the actuator to be loaded to 60kN at the speed of 2kN/s and then to stay for 30s; (4) Controlling the actuator to be loaded to 70kN at the speed of 2kN/s and then stay for 30s; (5) The actuator is controlled to load all the force off at a speed of 10kN/s and out of contact.
The wheel set rotation control module is used for controlling the wheel shaft rotator to change the rotation angle and the triggering relation of the wheel set to be detected, so that the wheel set can automatically rotate;
the data management subsystem is mainly used for controlling the data management part and realizing the automatic data acquisition and automatic data analysis of the acquisition device. When the test is started, the automatic data acquisition module and the automatic data analysis module are triggered, the automatic data acquisition module is stopped after the loading is finished, and the data are summarized to draw a curve. Specifically, the data management subsystem comprises an automatic data acquisition module and an automatic data analysis module;
the data automatic acquisition module is used for automatically naming a file according to a preset rule, calling a corresponding acquisition method, setting a corresponding acquisition start-stop triggering mode and acquiring a plurality of corresponding wheel set pressure values under different preset conditions;
and the automatic data analysis module is used for analyzing the pressure value of the wheel set. The data automatic analysis module comprises a reading identification submodule, a judgment submodule and an early warning submodule; the reading and identifying sub-module is used for reading the pressure value of the wheel pair, drawing a data curve and identifying the singular point data from the data curve; and the judgment submodule is used for comparing and judging the singular point data and a preset range. The judgment submodule is respectively in communication connection with the data automatic acquisition module, the early warning submodule and the wheel set rotation control module; if the singular point data is not in the preset range, the judgment sub-module feeds back corresponding signals to the automatic data acquisition module, the automatic data acquisition module feeds back the signals to the automatic calibration acquisition analysis system of the force measuring wheel and acquires data again; if the newly acquired data still contains singular point data, the judgment submodule sends corresponding signals to the alarm submodule, and the alarm submodule gives an alarm. If the singular point data is in the preset range, the judgment submodule feeds back a corresponding signal to the automatic loading control module, and the automatic loading control module stops loading at the moment; after the automatic loading control module stops loading, the judgment submodule judges whether the current angle force measuring process is finished or not; if the current angle force measuring process is finished, the judgment sub-module feeds back corresponding signals to the wheel set rotation control module, and the wheel set rotation control module controls the wheel to rotate; if the current angle force measuring process is not finished, the judgment sub-module feeds back corresponding signals to the automatic loading control module; and at the moment, the automatic loading control module is switched to the transverse force loading submodule to load the transverse force on the wheel pair.
The specific functions of the automatic calibration, acquisition and analysis system for the force measuring wheel set provided by the embodiment of the invention at least comprise the following three conventional modes:
(1) Patch protocol test mode, see fig. 3:
the mode is suitable for positioning the patch position of the vertical and horizontal strain gauge by a test method, and patches are required to be arranged on the inner side and the outer side of a radial plate of a wheel pair along the radial direction before the test. The mode process is as follows:
the first step is as follows: selecting a pre-programmed patch scheme test mode in a control interface, and reading preset contents;
the second step: determining a loading vertical/transverse force, controlling the actuator to contact, performing a low-load preloading test, and starting the test if the process is normal;
the third step: starting a test, wherein a data automatic acquisition module of a data management subsystem starts to automatically acquire data, a data automatic analysis module automatically analyzes the data, an automatic loading control module of a calibration control subsystem carries out step-by-step loading according to a preset condition, and a data curve is drawn according to an analysis result after the loading is finished;
the fourth step: the data automatic analysis module analyzes whether the data in the data curve has serious deviation and obvious abnormality, if the data is normal, the loading in the direction is finished, and if the data is abnormal, the third step can be repeated for the first time;
the fifth step: and determining whether the vertical/transverse force is tested completely, switching the loading direction when the vertical/transverse force is not tested completely, loading again from the second step, summarizing the vertical and transverse loaded data and drawing a curve by the automatic data analysis module when the vertical/transverse force is tested completely, and recommending a wheel set surface mounting scheme according to set rules.
(2) Calibration mode of the force measuring wheel pair, see fig. 4:
the mode is suitable for a calibration process, and the process of assembling the bridge by the patch of the front wheel pair is completed. The mode process is as follows:
the first step is as follows: selecting a pre-programmed calibration mode of the force measuring wheel pair in a control interface, and reading preset contents;
the second step: determining a loading vertical/transverse force after determining the calibration angle, controlling the actuator to contact, performing a low-load preloading test, and starting the test if the process is normal;
the third step: the test is started, the automatic data acquisition module of the data management subsystem starts to automatically acquire data, the automatic data analysis module automatically analyzes the data, the automatic loading control module of the calibration control subsystem carries out step-by-step loading according to a preset condition, and the automatic data analysis module summarizes the data according to an analysis result and draws a data curve after the loading is finished;
the fourth step: the data automatic analysis module analyzes whether the data in the data curve has serious deviation and obvious abnormality, if the data is normal, the direction calibration is finished, and if the data is abnormal, the third step can be repeated for the first time;
the fifth step: determining whether the angle calibration is finished or not, switching the loading direction when the angle calibration is not finished, loading again from the second step, and determining whether the whole calibration process is finished or not when the angle calibration is finished;
and a sixth step: and when the whole calibration process is not finished, the wheel set rotation control module accurately selects the next calibration angle, the wheel set rotation control module loads again from the second step, and when the calibration process is finished, the automatic data analysis module summarizes all calibration results, and the test is finished.
(3) The calibration result rechecking mode is shown in fig. 5:
the mode is suitable for rechecking the calibration result of the wheel set after the calibration process is finished. The mode process is as follows:
the first step is as follows: selecting a pre-programmed calibration result rechecking mode in a control interface, and reading preset contents;
the second step is that: after the rechecking angle is determined, the combined force formed by the vertical direction and the transverse direction is loaded at the same time, the contact of the actuator is controlled, the preloading test of small load is carried out, and the test is started when the process is normal;
the third step: the test is started, the automatic data acquisition module of the data management subsystem starts to automatically acquire data, the automatic data analysis module automatically analyzes the data, the automatic loading control module of the calibration control subsystem carries out step-by-step loading according to a preset condition, and after the loading is finished, the automatic data analysis module summarizes the data according to an analysis result and draws a rechecking data curve;
the fourth step: determining whether the angle rechecking is finished, switching the next combined force when the angle rechecking is not finished, loading again from the second step, and determining whether the whole calibration process is finished when the angle rechecking is finished;
the fifth step: and when the whole rechecking process is not finished, the wheel set rotation control module accurately selects to the next calibration angle, the wheel set rotation control module loads again from the second step, and when the rechecking process is finished, the data automatic analysis module summarizes all rechecking results, and the test is finished.
The embodiment of the invention also provides an automatic calibration, acquisition and analysis method for the force measuring wheel set, which is applied to the system and shown in fig. 6, and the method comprises the following steps:
s1, controlling an actuator to apply pressure to a wheel pair to be tested through an automatic loading control module;
s2, calling a corresponding acquisition method through an automatic data acquisition module according to a preset rule, and setting a corresponding acquisition start-stop triggering mode to realize acquisition of corresponding wheel set pressure values under different preset conditions;
and S3, analyzing the pressure value of the wheel pair through an automatic data analysis module.
Wherein, S3 specifically includes:
s31, reading the pressure value of the wheel set through a reading and identifying submodule in the data automatic analysis module, drawing a data curve, and identifying singular point data from the data curve;
s32, comparing and judging the singular point data with a preset value through a judging submodule in the data automatic analysis module;
if the singular point data accord with the preset value, the automatic loading control module stops loading, and at the moment, a judgment sub-module in the data automatic analysis module judges whether the current angle force measurement process is finished or not;
if the angle force measuring process is finished, the judgment sub-module feeds back corresponding signals to the wheel set rotation control module, and the wheel set rotation control module controls the wheel to rotate;
if the angle force measuring process is not finished, the judgment sub-module feeds back corresponding signals to the automatic loading control module; at the moment, the automatic loading control module is switched to the transverse force loading submodule, transverse force loading is carried out on the wheel pair, and S2 is executed again;
and if the singular point data do not accord with the preset value, re-executing the S2.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. The utility model provides an automatic collection analytic system that marks of dynamometry wheel pair, is applied to dynamometry wheel pair test bench, its characterized in that includes: a calibration control subsystem and a data management subsystem;
the calibration control subsystem comprises an automatic loading control module and a wheel set rotation control module;
the automatic loading control module is used for controlling the actuator to apply different pressures to the wheel pair to be tested step by step according to a preset condition;
the wheel set rotation control module is used for controlling the wheel shaft rotator to rotate according to a preset condition so as to realize the switching of different loading angles of the wheel set;
the data management subsystem comprises an automatic data acquisition module and an automatic data analysis module;
the automatic data acquisition module is used for calling a corresponding acquisition method according to a preset rule, setting a corresponding acquisition start-stop triggering mode and acquiring a plurality of corresponding wheel set pressure values under different preset conditions;
the data automatic analysis module is used for analyzing the pressure value of the wheel pair.
2. The automatic calibration, acquisition and analysis system for the load-measuring wheel set according to claim 1, wherein the automatic loading control module comprises a vertical force loading sub-module and a transverse force loading sub-module;
the vertical force loading submodule is used for controlling the vertical force actuator to realize loading of different vertical forces;
the transverse force loading submodule is used for controlling the transverse force actuator to realize different transverse force loading.
3. The automatic calibration, acquisition and analysis system for the load-measuring wheel set according to claim 1, wherein the automatic data analysis module comprises a reading identification sub-module and a judgment sub-module;
the reading and identifying sub-module is used for reading the wheel set pressure value, drawing a data curve and identifying singular point data from the data curve;
the judgment submodule is used for judging the wheel rotation angle and comparing and judging the singular point data with a preset range.
4. The automatic calibration, acquisition and analysis system for the load-measuring wheel set according to claim 3, wherein the judgment sub-module is in communication connection with the automatic data acquisition module;
and if the singular point data is not in the preset range, the judgment submodule feeds back a corresponding signal to the automatic data acquisition module, and the automatic data acquisition module carries out the loading test again.
5. The automatic calibration, acquisition and analysis system for the load-measuring wheel set according to claim 4, wherein the automatic data analysis module further comprises an early warning sub-module; the judgment sub-module and the early warning sub-module;
if the singular point data still exist in the re-acquired data, the judgment submodule sends a corresponding signal to the alarm submodule, and the alarm submodule gives an alarm.
6. The automatic calibration, acquisition and analysis system for the load-measuring wheel set according to claim 3, wherein the judgment sub-module is in communication connection with the automatic loading control module;
and if the singular point data are in the preset range, the judgment sub-module feeds back corresponding signals to the automatic loading control module, and the automatic loading control module stops loading at the moment.
7. The automatic calibration, acquisition and analysis system for load-measuring wheel sets of claim 3, wherein said automatic loading control module is communicatively connected to said wheel set rotation control module;
after the automatic loading control module stops loading, the judgment submodule judges whether the current angle force measuring process is finished or not;
if the current angle force measuring process is finished, the judgment sub-module feeds back corresponding signals to the wheel set rotation control module, and the wheel set rotation control module controls the wheel to rotate;
if the current angle force measuring process is not finished, the judgment sub-module feeds back a corresponding signal to the automatic loading control module; and at the moment, the automatic loading control module is switched to the transverse force loading submodule to load the transverse force on the wheel pair.
8. An automatic calibration, acquisition and analysis method for a load-measuring wheel set, characterized by being applied to the system of any one of claims 1 to 7; the method comprises the following steps:
s1, controlling an actuator to apply pressure to a wheel pair to be tested through an automatic loading control module;
s2, calling a corresponding acquisition method through an automatic data acquisition module according to a preset rule, and setting a corresponding acquisition start-stop triggering mode to realize acquisition of corresponding wheel set pressure values under different preset conditions;
and S3, analyzing the pressure value of the wheel pair through an automatic data analysis module.
9. The automatic calibration, acquisition and analysis method for the load-measuring wheel set according to claim 8, wherein the step S3 specifically comprises:
s31, reading the pressure value of the wheel pair through a reading identification submodule in the automatic data analysis module, drawing a data curve, and identifying singular point data from the data curve;
s32, comparing and judging the singular point data and a preset value through a judgment submodule in the data automatic analysis module;
if the singular point data accord with the preset value, the automatic loading control module stops loading, and at the moment, a judgment submodule in the data automatic analysis module judges whether the current angle force measurement process is finished or not;
and if the singular point data do not accord with the preset value, re-executing the S2.
10. The automatic calibration, acquisition and analysis method for the load-measuring wheel set according to claim 9, wherein in S32, the determining submodule determines whether the current angle force-measuring process is completed, and the corresponding determination contents include:
if the angle force measuring process is finished, the judgment sub-module feeds back corresponding signals to the wheel set rotation control module, and the wheel set rotation control module controls the wheel to rotate;
if the angle force measuring process is not finished, the judgment sub-module feeds back corresponding signals to the automatic loading control module; and at the moment, the automatic loading control module is switched to the transverse force loading submodule, transverse force loading is carried out on the wheel pair, and S2 is executed again.
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