CN116893341A - Stepping motor driver, stepping motor testing method, system, equipment and medium - Google Patents

Stepping motor driver, stepping motor testing method, system, equipment and medium Download PDF

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Publication number
CN116893341A
CN116893341A CN202310838583.4A CN202310838583A CN116893341A CN 116893341 A CN116893341 A CN 116893341A CN 202310838583 A CN202310838583 A CN 202310838583A CN 116893341 A CN116893341 A CN 116893341A
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CN
China
Prior art keywords
stepping motor
stepper motor
motor driver
photoelectric switch
type photoelectric
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CN202310838583.4A
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Chinese (zh)
Inventor
李�亨
张震
周京安
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Shenzhen Yankong Automation Technology Co ltd
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Shenzhen Yankong Automation Technology Co ltd
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Priority to CN202310838583.4A priority Critical patent/CN116893341A/en
Publication of CN116893341A publication Critical patent/CN116893341A/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/34—Testing dynamo-electric machines

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Stepping Motors (AREA)

Abstract

The application discloses a stepping motor driver and a stepping motor testing method, a system, equipment and a medium, and relates to the technical field of stepping motors, wherein the stepping motor driver and the stepping motor testing method comprise the following steps: generating a corresponding interference signal according to preset interference test parameters through an interference signal generator, and sending the corresponding interference signal to a stepping motor driver; receiving control signal parameters sent by a computer through a programmable logic controller, generating corresponding control signals, and sending the control signals to the stepping motor driver; driving a stepping motor to rotate through the stepping motor driver according to the received control signal and interference signal, and detecting whether a marker on a rotor shaft of the stepping motor is in an aligned state with the rotor position sensor through the rotor position sensor after rotation is stopped; if yes, the interference test passes, otherwise, the interference test does not pass. The application improves the testing efficiency of the open-loop stepping motor driver and the open-loop stepping motor.

Description

Stepping motor driver, stepping motor testing method, system, equipment and medium
Technical Field
The application relates to the technical field of stepping motors, in particular to a stepping motor driver, a stepping motor testing method, a stepping motor testing system, stepping motor testing equipment and a stepping motor testing medium.
Background
In the current market, the output of the open-loop stepping motor driver and the open-loop stepping motor without the signal feedback function is still very large, so that the open-loop stepping motor driver and the open-loop stepping motor need to be subjected to out-of-step test to judge whether the open-loop stepping motor driver and the open-loop stepping motor are qualified. Step-out judgment, namely whether the starting position of the motor starting to rotate and the stopping position of the motor rotating are in the same position or whether the position deviation is in an acceptable range, wherein each test needs an artificial naked eye to judge whether the starting position and the stopping position of the motor rotating shaft are in the same position; if the deviation of the position is too large, the motor shaft is manually twisted to reach the calibration position, and then the test is restarted, so that the test workload of the open-loop stepping motor driver and the open-loop stepping motor is large, the test result is greatly influenced by the self experience and the level of a tester, and the test efficiency of the open-loop stepping motor driver and the open-loop stepping motor is low.
Disclosure of Invention
The application mainly aims to provide a stepping motor driver and a stepping motor testing method, a stepping motor driver testing system, stepping motor testing equipment and a stepping motor testing medium, and aims to solve the technical problem that the testing efficiency of an open-loop stepping motor driver and an open-loop stepping motor is low.
In order to achieve the above object, the present application provides a stepper motor driver and a stepper motor testing method, the stepper motor driver and the stepper motor testing method comprising:
generating a corresponding interference signal according to preset interference test parameters through an interference signal generator, and sending the corresponding interference signal to a stepping motor driver;
receiving control signal parameters sent by a computer through a programmable logic controller, generating corresponding control signals, and sending the control signals to the stepping motor driver;
driving a stepping motor to rotate through the stepping motor driver according to the received control signal and interference signal, and detecting whether a marker on a rotor shaft of the stepping motor is in an aligned state with the rotor position sensor through the rotor position sensor after rotation is stopped;
if yes, the interference test passes, otherwise, the interference test does not pass.
Optionally, the rotor position sensor is a slot photoelectric switch.
Optionally, the slot photoelectric switch is mounted on a stator of the stepper motor, a marker on a rotor shaft of the stepper motor is an optical baffle, and the step of detecting, by the rotor position sensor, whether the marker on the rotor shaft of the stepper motor is aligned with the rotor position sensor includes: :
Judging whether the groove type photoelectric switch is in an off state or not;
if the groove type photoelectric switch is in an off state, an optical baffle on a rotor shaft of the stepping motor is in an alignment state with the groove type photoelectric switch;
and if the groove type photoelectric switch is in a communication state, the light baffle on the rotor shaft of the stepping motor and the groove type photoelectric switch are in a deviation state.
Optionally, the slot type photoelectric switch is a U-shaped slot type photoelectric switch, and before the step of determining whether the slot type photoelectric switch is in an off state or an on state, the method further includes:
transmitting light to a receiving position of the U-shaped groove type photoelectric switch through the transmitting position of the U-shaped groove type photoelectric switch;
if the light emitting path is blocked by the light blocking sheet, the receiving position cannot receive the light and the U-shaped groove type photoelectric switch is in an off state;
if the light emitting path is not blocked by the light blocking sheet, the receiving position can receive the light and the U-shaped groove type photoelectric switch is in a communicating state.
Optionally, before the step of driving the stepper motor to rotate by the stepper motor driver according to the received control signal and the interference signal, the method further comprises:
Detecting whether an optical baffle on a rotor shaft of the stepping motor is in an aligned state with the groove type photoelectric switch or not through the groove type photoelectric switch;
if the groove type photoelectric switch is in a communication state, a light baffle on a rotor shaft of the stepping motor is not in an alignment state with the groove type photoelectric switch, and the stepping motor is driven to rotate through the stepping motor driver until the groove type photoelectric switch is in an off state.
Optionally, the step of driving, by the stepper motor driver, the stepper motor to rotate according to the received control signal and the interference signal includes:
generating a driving signal by the stepper motor driver according to the interference signal and the control signal;
and when the operation time length of the stepper motor reaches the preset time length in the interference test parameters, the programmable logic controller is controlled by the computer to stop sending a control signal to the stepper motor driver so as to stop the rotation of the rotor of the stepper motor.
Optionally, after the step of detecting by a rotor position sensor whether a marker on a rotor shaft of the stepper motor is in alignment with the rotor position sensor, the method further comprises:
If the marker on the rotor shaft of the stepping motor and the groove type photoelectric switch are detected not to be in an aligned state, the test item corresponding to the interference test parameter does not pass;
and driving the stepping motor to rotate through the stepping motor driver until the marker on the rotor shaft of the stepping motor is in an aligned state with the groove type photoelectric switch.
Optionally, the step motor driver and step motor testing method further includes:
after a test result corresponding to the interference test parameter is obtained, if an unfinished test item exists, generating a corresponding interference signal according to a preset interference test parameter corresponding to a next test item through the interference signal generator, and sending the corresponding interference signal to the stepping motor driver, wherein the test result comprises passing or failing;
returning to the execution step: and driving the stepping motor to rotate by the stepping motor driver according to the received control signal and the interference signal.
The application also provides a stepper motor driver and a stepper motor testing system, which are applied to stepper motor driver and stepper motor testing equipment, and the stepper motor driver and stepper motor testing system comprises:
A stepper motor driver, a stepper motor, an interference signal generator, a programmable logic controller and a computer;
the step motor driver is respectively connected with the step motor, the interference signal generator and the programmable logic controller;
the stepping motor is connected with the programmable logic controller, a slot rotor position sensor is arranged in the stepping motor, a marker is arranged on a rotor shaft of the stepping motor, and the rotor position sensor is used for detecting whether the marker on the rotor shaft of the stepping motor is in an aligned state with the rotor position sensor or not;
the interference signal generator and the programmable logic controller are respectively connected with the computer.
The application also provides an electronic device, which is entity equipment, comprising: the step motor testing device comprises a memory, a processor and a program of the step motor driver and the step motor testing method, wherein the program of the step motor driver and the step motor testing method is stored in the memory and can run on the processor, and the steps of the step motor driver and the step motor testing method can be realized when the program of the step motor driver and the step motor testing method is executed by the processor.
The present application also provides a computer readable storage medium having stored thereon a program for implementing a stepper motor driver and a stepper motor testing method, which when executed by a processor implement the steps of the stepper motor driver and stepper motor testing method as described above.
The application also provides a computer program product comprising a computer program which when executed by a processor implements the steps of a stepper motor driver and stepper motor testing method as described above.
The application provides a stepping motor driver and a stepping motor testing method, a system, equipment and a medium, firstly, a corresponding interference signal is generated through an interference signal generator according to preset interference testing parameters and is sent to the stepping motor driver, then a programmable logic controller receives control signal parameters sent by a computer, a corresponding control signal is generated and is sent to the stepping motor driver, and then the stepping motor driver drives the stepping motor to rotate according to the received control signal and the interference signal, and after rotation is stopped, a rotor position sensor detects whether a marker on a rotor shaft of the stepping motor is in an aligned state with the rotor position sensor or not, if yes, the interference testing is passed, otherwise, the interference testing is not passed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
In order to more clearly illustrate the embodiments of the application or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.
FIG. 1 is a flow chart of a first embodiment of a stepper motor driver and a stepper motor testing method according to the present application;
FIG. 2 is a schematic diagram of the positions of a U-shaped slot type photoelectric switch and an optical baffle in the step motor driver and step motor testing method of the present application;
FIG. 3 is a schematic diagram of the working principle of the U-shaped slot type photoelectric switch in the step motor driver and step motor testing method of the present application;
FIG. 4 is a schematic diagram showing the constitution of a stepper motor driver and a stepper motor testing system according to an embodiment of the present application;
fig. 5 is a schematic diagram of an apparatus structure of a hardware operating environment related to a stepper motor driver and a stepper motor testing method according to an embodiment of the present application.
The achievement of the objects, functional features and advantages of the present application will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
In order to make the above objects, features and advantages of the present application more comprehensible, the following description of the embodiments accompanied with the accompanying drawings will be given in detail. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Example 1
Currently, open loop stepper motor drives and open loop stepper motors lack feedback signal functionality such as closed loop stepper motor drives and stepper motors, which are only capable of receiving commands and executing commands in one direction, and out-of-step testing is an important item in the finished product testing of open loop stepper motor drives and open loop stepper motors. In the step-out test process of the open loop stepping motor driver and the open loop stepping motor, a large amount of manual intervention and operation are needed, particularly in some anti-interference tests, interference phase line selection, interference frequency selection, transmission line conduction and capacity clamp coupling selection are needed, each test item needs manual input parameters, each test item has time requirements, test results are needed to be single test results and complete test results of all items, whether the step-out exists or not is judged by manually judging whether position deviation exists, the frequent power-on and power-off of the test driver and the motor are all operated manually, the time is extremely long, and the process is complex. Thus, the testing efficiency of the stepper motor driver and the stepper motor is low, and thus an automatic testing method for performing out-of-step testing on the stepper motor driver and the stepper motor is needed.
In a first embodiment of the present application, referring to fig. 1, a step motor driver and a step motor testing method include:
step S10, generating a corresponding interference signal by an interference signal generator according to preset interference test parameters, and sending the corresponding interference signal to a stepping motor driver;
step S20, receiving control signal parameters sent by a computer through a programmable logic controller, generating corresponding control signals, and sending the corresponding control signals to the stepper motor driver;
step S30, driving the stepping motor to rotate through the stepping motor driver according to the received control signal and interference signal, and detecting whether a marker on a rotor shaft of the stepping motor is in an aligned state with the rotor position sensor through the rotor position sensor after rotation is stopped;
and S40, if yes, the interference test passes, otherwise, the interference test does not pass.
In the embodiment of the application, it is to be noted that the stepper motor driver and the stepper motor are an open loop stepper motor driver and an open loop stepper motor respectively, and the position signals cannot be fed back to determine whether the step-out occurs, so the embodiment of the application detects whether the marker on the rotor shaft of the open loop stepper motor is aligned with the rotor position sensor by arranging a rotor position sensor on the stator of the open loop stepper motor, wherein the marker rotates along with the rotation of the rotor shaft, and the rotor position sensor is aligned with the marker on the rotor shaft of the stepper motor before each interference test. Therefore, automatic detection is achieved, wherein the detection precision of the alignment state can be adjusted by adjusting the width of the marker on the rotor shaft, the wider the marker is, the lower the detection precision is, the narrower the marker is, the higher the detection precision is, and the staff can set the proper marker width according to specific requirements. The automatic test software is installed on the computer (PC, personal Computer) and used for configuring control signal parameters, and the programmable logic controller (PLC, programmable Logic Controller) is controlled through the computer, so that automatic tests of the open-loop stepping motor driver and the open-loop stepping motor are realized, accurate tests of step-out are accurately judged, labor and time are saved, cost is reduced in product production tests, and benefits are improved. The preset interference signal parameters can comprise interference signal parameters corresponding to a plurality of test items respectively, and the interference signal generator can be used for a tester to configure the interference signal parameters of the test items corresponding to each item test according to requirements, so that different types of interference signals are generated and sequentially sent to the stepping motor driver to perform interference test on the interference signals, so that a plurality of item test items are completed successively. For example, in an actual testing process, it is generally required to perform multiple interference tests on the stepper motor driver and the stepper motor, for example, there are interference phase line selection, interference frequency selection, transmission line conduction and capacitance-clip coupling selection, and interference test parameters corresponding to different interference tests are different, where the passing of the interference test indicates that the stepper motor driver and the stepper motor pass through a current test item, and corresponding interference signals are generated to perform testing of other test items according to the interference test parameters corresponding to the next test item until testing of all test items is completed.
It should be noted that, the communication modes between the stepper motor driver, the stepper motor, the interference signal generator, the programmable logic controller and the computer related to the stepper motor driver and the stepper motor testing method include, but are not limited to, UART (Universal Asynchronous Receiver/Transmitter, universal asynchronous receiver Transmitter), RS485 protocol, CAN (Controller Area Network, serial communication protocol bus), LAN (Local Area Network ) and other industrial communication modes.
As an example, steps S10 to S40 include: generating a corresponding interference signal according to a preset first group of interference test parameters through the interference signal generator, wherein the interference test parameters at least comprise interference duration; transmitting the interference signal to a stepper motor driver; transmitting control signal parameters to a programmable logic controller through the automatic test software, wherein the control signal parameters at least comprise operation duration and preset rotating speed, and the operation duration is equal to the interference duration; generating corresponding control signals according to the control signal parameters through the programmable logic controller; transmitting the control signal to the motor driver; generating a corresponding driving signal according to the received control signal and interference signal by the stepping motor driver, and sending the driving signal to a stepping motor to drive a rotor shaft of the stepping motor to rotate; when the selection of the stepper motor reaches the operation time length, sending a stop instruction to the programmable logic controller through the computer, and controlling the programmable logic controller to stop sending a control signal to the stepper motor to control the stepper motor to stop operation; detecting whether a marker on a rotor shaft of the stepper motor is in an aligned state with the rotor position sensor through a rotor position sensor arranged on the stepper motor, wherein the marker on the rotor shaft of the stepper motor is in an aligned state with the rotor position sensor before testing; transmitting back a position judgment signal to the programmable logic controller through the stepping motor, wherein the position judgment signal comprises alignment or non-alignment; judging whether the test item passes or not according to the position judging signal, specifically, if a marker on a rotor shaft of the stepping motor is in an aligned state with the groove type photoelectric switch, no step loss occurs and the test item corresponding to the interference test parameter passes; if the marker on the rotor shaft of the stepping motor is not in an aligned state with the rotor position sensor, step out occurs and the test item corresponding to the interference test parameter is passed.
As a possible embodiment, the rotor position sensor may be a slot-type optoelectronic switch.
Further, the slot photoelectric switch is mounted on a stator of the stepper motor, a marker on a rotor shaft of the stepper motor is a light baffle, and the step of detecting whether the marker on the rotor shaft of the stepper motor and the rotor position sensor are in an aligned state through the rotor position sensor comprises the following steps:
step S31, judging whether the groove type photoelectric switch is in an off state or not;
step S32, if the slot type photoelectric switch is in an off state, an optical baffle on a rotor shaft of the stepping motor is in an aligned state with the slot type photoelectric switch;
and step S33, if the groove type photoelectric switch is in a communication state, the light baffle on the rotor shaft of the stepping motor and the groove type photoelectric switch are in a deviation state.
In the embodiment of the present application, it should be noted that, referring to fig. 2, the slot type photoelectric switch is installed on a stator of the stepper motor, and an optical baffle is installed on a rotor shaft of the stepper motor, when the optical baffle is aligned with the slot type photoelectric switch, the optical baffle blocks light propagation in the slot type photoelectric switch, and then the slot type photoelectric switch is in an off state; when the light baffle is not aligned with the groove type photoelectric switch, the light baffle cannot shield light transmission in the groove type photoelectric switch, and then the groove type photoelectric switch is in a communication state. The embodiment of the application realizes the representation of the alignment state and the deviation state between the optical baffle on the rotor shaft of the stepping motor and the groove type photoelectric switch through the turn-off state and the communication state of the U-shaped groove type photoelectric switch, overcomes the technical defect of low test accuracy caused by the fact that whether the deviation occurs or not is judged by human eyes, and improves the test efficiency.
As an example, steps S31 to S33 include judging whether the slot photoelectric switch is in an off state after the step motor stops operating; if the groove type photoelectric switch is in an off state, the position of the optical baffle on the rotor shaft of the stepping motor is overlapped with that of the groove type photoelectric switch, namely the optical baffle on the rotor shaft of the stepping motor is in an aligned state with the groove type photoelectric switch, and the stepping motor is not out of step; if the groove type photoelectric switch is in a communication state, the position of the optical baffle on the rotor shaft of the stepping motor is not overlapped with that of the groove type photoelectric switch, namely, the optical baffle on the rotor shaft of the stepping motor is in a deviation state with the groove type photoelectric switch, and the stepping motor is out of step.
Further, before the step of determining whether the slot optoelectronic switch is in an off state or an on state, the method further includes:
step S311, transmitting light to the receiving position of the U-shaped groove type photoelectric switch through the transmitting position of the U-shaped groove type photoelectric switch;
step S312, if the light emission path is blocked by the light blocking sheet, the receiving position cannot receive the light and the U-shaped groove type photoelectric switch is in an off state;
In step S313, if the light emitting path is not blocked by the light blocking sheet, the receiving position can receive the light and the U-shaped slot photoelectric switch is in a connected state.
In the embodiment of the present application, it should be noted that, referring to fig. 3, when the optical baffle on the rotor shaft 107 of the stepper motor is aligned with the slot type photoelectric switch 106, the optical baffle 108 on the rotor shaft is located in the middle of the U type slot type photoelectric switch, so as to exactly block the light transmission path from the transmitting position 109 to the receiving position 110 on the U type slot type photoelectric switch, and at this time, the U type slot type photoelectric switch is in the off state.
As an example, step S311 to step S313 include: transmitting light rays to the direction of the receiving position of the U-shaped groove type photoelectric switch through the transmitting position of the U-shaped groove type photoelectric switch; in the light propagation process, if the light emission path is blocked by the light baffle, the receiving position cannot receive light and the U-shaped groove type photoelectric switch is in an off state, namely the light baffle on the rotor shaft of the stepping motor is in an aligned state with the groove type photoelectric switch, and the stepping motor is not out of step; if the light emitting path is not blocked by the light baffle, the receiving position can receive the light and the U-shaped groove type photoelectric switch is in a communication state, namely the light baffle on the rotor shaft of the stepping motor and the groove type photoelectric switch are in a deviating state, and the stepping motor is out of step.
In addition, before the step of driving the stepper motor to rotate by the stepper motor driver according to the received control signal and the interference signal, the method further comprises:
step A10, detecting whether a marker on a rotor shaft of the stepping motor and the groove type photoelectric switch are in an aligned state or not through the groove type photoelectric switch;
and step A20, if the slot type photoelectric switch is in a communication state, a marker on a rotor shaft of the stepping motor and the slot type photoelectric switch are not in an alignment state, and the stepping motor is driven to rotate by the stepping motor driver until the slot type photoelectric switch is in an off state.
In the embodiment of the application, it is to be noted that the embodiment of the application provides a method for aligning the rotor shaft position of the stepper motor before the test of the stepper motor driver and the stepper motor, the method detects whether the rotor shaft position is in an aligned state or not through the slot type photoelectric switch, and drives the stepper motor to rotate through the stepper motor driver when the rotor shaft position is not in the aligned state, so that the optical baffle on the rotor shaft of the stepper motor is aligned with the slot type photoelectric switch, manual alignment is not needed before each test, automatic alignment of the rotor shaft of the stepper motor is realized, and the test efficiency of the stepper motor driver and the stepper motor is improved.
As an example, steps a10 to a20 include: before a step motor driver and step motor test is performed, detecting whether an optical baffle on a rotor shaft of the step motor and the groove type photoelectric switch are in an aligned state or not through the groove type photoelectric switch; if the slot type photoelectric switch is in an off state, a light baffle on a rotor shaft of the stepping motor is in an aligned state with the slot type photoelectric switch, and the steps S10 to S40 can be directly executed; if the groove type photoelectric switch is in a communication state, a light baffle on a rotor shaft of the stepping motor is not in an alignment state with the groove type photoelectric switch; the method comprises the steps that a computer sends an instruction to a programmable logic controller, the programmable logic controller is controlled to send a control signal to the stepping motor to control the rotor of the stepping motor to rotate, and the state of the groove type photoelectric switch is detected in real time; when the groove type photoelectric switch is detected to be in an off state, the groove type photoelectric switch detects whether an optical baffle on a rotor shaft of the stepping motor and the groove type photoelectric switch are in an alignment state or not, and a position judgment signal corresponding to the alignment state is returned to the programmable logic controller; and when the position judgment signal received by the programmable logic controller is in an alignment state, stopping sending a control signal to the stepping motor so as to stop the rotation of the rotor of the stepping motor and finish automatic alignment before testing the stepping motor.
Specifically, the step of driving, by the stepper motor driver, the stepper motor to rotate according to the received control signal and the interference signal includes:
step S34, generating a driving signal by the stepping motor driver according to the interference signal and the control signal;
step S35, the driving signal is sent to the stepping motor to drive the rotor of the stepping motor to rotate;
and step S36, when the operation time length of the stepping motor reaches the preset time length in the interference test parameters, controlling the programmable logic controller to stop sending a control signal to the stepping motor driver by the computer so as to stop the rotation of the rotor of the stepping motor.
In the embodiment of the application, it is to be noted that the embodiment of the application provides a method for driving a stepper motor to run through a control signal and an interference signal to perform a test item of the interference test, which specifically includes a preset duration in the interference test parameters, and automatically stopping rotation of a rotor of the stepper motor when the running duration reaches the preset duration, so as to realize automatic control of testing of the stepper motor driver and the stepper motor, and improve the test efficiency of the stepper motor driver and the stepper motor.
As an example, steps S34 to S36 include: receiving the control signal and the interference signal through the stepper motor driver, and eliminating the interference of the interference signal to generate a driving signal for controlling the rotation of the rotor of the stepper motor; the driving signal is sent to the stepping motor to drive the stepping motor to operate; when the running time of the stepper motor reaches the preset time in the interference test parameters, sending a stop instruction to the programmable logic controller through the computer so as to control the programmable logic controller to stop sending a control signal to the stepper motor driver, and stopping the rotation of the rotor of the stepper motor so as to complete the test of the stepper motor driver and the stepper motor.
Further, after the step of detecting by a rotor position sensor whether a marker on a rotor shaft of the stepper motor is in alignment with the rotor position sensor, the method further comprises:
step B10, if the marker on the rotor shaft of the stepping motor and the groove type photoelectric switch are detected not to be in an aligned state, the test item corresponding to the interference test parameter does not pass;
And step B20, driving the stepping motor to rotate through the stepping motor driver until the marker on the rotor shaft of the stepping motor is in an aligned state with the groove type photoelectric switch.
In the embodiment of the present application, it should be noted that, in the embodiment of the present application, when a test item does not pass, that is, after the test is completed, the marker on the rotor shaft of the stepper motor and the marker on the rotor shaft of the slot type photoelectric switch are not in an aligned state, the method for automatically aligning the marker on the rotor shaft of the stepper motor and the slot type photoelectric switch is provided, and specific execution steps may refer to automatic alignment steps from step a10 to step a20, which are not described herein.
As an example, steps B10 to B20 include: if the groove type photoelectric switch is detected to be in a communication state, a marker on a rotor shaft of the stepping motor is not in an alignment state with the groove type photoelectric switch, namely, a test item corresponding to the interference test parameter does not pass; the method comprises the steps that a computer sends an instruction to a programmable logic controller, the programmable logic controller is controlled to send a control signal to the stepping motor to control the rotor of the stepping motor to rotate, and the state of the groove type photoelectric switch is detected in real time; when the groove type photoelectric switch is detected to be in an off state, the groove type photoelectric switch detects whether a marker on a rotor shaft of the stepping motor and the groove type photoelectric switch are in an alignment state or not, and a position judgment signal corresponding to the alignment state is returned to the programmable logic controller; and when the position judgment signal received by the programmable logic controller is in an alignment state, stopping sending a control signal to the stepping motor so as to stop the rotation of the rotor of the stepping motor and finish automatic alignment before testing the stepping motor.
In addition, after obtaining the test result of each test item of the interference test, the step motor driver and step motor test method further includes:
step S50, after a test result corresponding to the interference test parameter is obtained, if an unfinished test item exists, generating a corresponding interference signal according to a preset interference test parameter corresponding to a next test item through the interference signal generator, and sending the corresponding interference signal to the stepper motor driver, wherein the test result comprises passing or failing;
step S60, return to execute the step: and driving the stepping motor to rotate by the stepping motor driver according to the received control signal and the interference signal.
In the embodiment of the present application, it should be noted that, the embodiment of the present application provides a method for performing a test including a plurality of single test items, that is, after a test result of each single test item is obtained, whether there is an incomplete test item is determined, if there is an incomplete test item, a new interference signal is generated according to an interference test parameter of a new single test item, and steps S30 to S40 are performed in a circulating manner, where in each test, the interference test parameter of each single test item to be tested is preset in an interference signal generator, and a tester can select the single test item to be tested according to a requirement.
As an example, steps S50 to S60 include: after the execution of the steps S30 to S40 is finished, namely after the test result of the single test item is obtained, judging whether the single test item which is not finished exists; if the incomplete test items do not exist, ending the test; if the incomplete test items exist, generating an interference test signal corresponding to the next test item through the interference signal generator according to the preset interference test parameters corresponding to the next test item; transmitting the generated interference test signal corresponding to the next test item to a stepping motor driver; returning to the execution step S30: the stepping motor driver drives the stepping motor to rotate according to the received control signal and interference signal, after the rotation is stopped, a groove type photoelectric switch is used for detecting whether a marker on a rotor shaft of the stepping motor and the groove type photoelectric switch are in an aligned state, and step S40 is executed: the stepping motor driver drives the stepping motor to rotate according to the received control signal and interference signal, and after the rotation is stopped, a groove type photoelectric switch detects whether a marker on a rotor shaft of the stepping motor and the groove type photoelectric switch are in an aligned state or not; and returning to the execution of the steps S50 to S60 until all the single test item tests are completed.
The key of the stepping motor driver and the stepping motor testing method provided by the embodiment of the application is that a groove type photoelectric switch with low cost and simple signal is added to feed back a position judging signal, and each test item of an interference signal generator is controlled and read to automatically test item by item and automatically record by running automatic test software installed on a computer; and the control signal is sent to the PLC of the open-loop stepping motor driver through the computer so as to realize the real-time sending and stopping of the control signal sent to the open-loop stepping motor driver, and meanwhile, the position judgment signal output to the PLC by the groove type photoelectric switch is obtained so as to determine whether the step is out. And after the test is finished, automatically recording test results under various single interference test items. If all the individual test results pass, then the entire test passes. If some single test items fail to test, the failed test items can be quickly obtained from the test results.
The application provides a stepping motor driver and a stepping motor testing method, firstly, a corresponding interference signal is generated through an interference signal generator according to preset interference testing parameters and is sent to the stepping motor driver, then a programmable logic controller receives the control signal parameters sent by a computer, generates a corresponding control signal and is sent to the stepping motor driver, and then the stepping motor driver drives the stepping motor to rotate according to the received control signal and the interference signal, and after rotation is stopped, a rotor position sensor detects whether a marker on a rotor shaft of the stepping motor is in an aligned state with the rotor position sensor or not, if yes, the interference testing is passed, otherwise, the interference testing is not passed, and the technical scheme of the embodiment of the application can automatically send the various interference testing parameters of the stepping motor driver and the stepping motor during testing through the computer to control the rotation of the stepping motor without manual input after each test is finished, thereby improving the testing efficiency.
Example two
The embodiment of the application also provides a stepper motor driver and a stepper motor testing system, referring to fig. 4, the stepper motor driver and stepper motor testing system includes:
a stepper motor driver 101, a stepper motor 102, an interference signal generator 103, a programmable logic controller 104, and a computer 105;
the step motor driver 101 is respectively connected with the step motor 102, the interference signal generator 103 and the programmable logic controller 104, the step motor driver 101 is configured to generate a driving signal according to an interference signal sent by the interference signal generator 103 and a control signal sent by the programmable logic controller 104 so as to control the step motor 102, and the interference signal generator 103 is configured to generate a corresponding interference signal according to a preset interference signal parameter;
the step motor 102 is connected to the programmable logic controller 104, a rotor position sensor is disposed in the step motor 102, the rotor position sensor may be a slot type photoelectric switch 106 (refer to fig. 3), a rotor shaft 107 (refer to fig. 3), and a flag on the rotor shaft 107, the flag may be an optical baffle 108 (refer to fig. 3), the slot type photoelectric switch 106 is used for detecting whether the optical baffle 108 on the rotor shaft 107 of the step motor 102 is aligned with the slot type photoelectric switch 106, specifically, the slot type photoelectric switch 106 is a U-shaped slot type photoelectric switch, and when the U-shaped slot type photoelectric switch is in an off state, the optical baffle 108 on the rotor shaft 107 on the step motor 102 is aligned with the slot type photoelectric switch 106; when the U-shaped groove type photoelectric switch is in a communication state, a light baffle 108 on a rotor shaft 107 on the stepping motor 102 and the groove type photoelectric switch 106 are in a deviating state;
The stepper motor 102 is further configured to feed back a position determining signal to the programmable logic controller 104 to determine whether the rotor shaft 107 on the stepper motor 102 and the slot photoelectric switch 106 are in an aligned state, so that the programmable logic controller 104 can determine whether to continue sending a control signal to the stepper motor driver 101 to complete automatic alignment of the stepper motor 102.
Wherein, the interference signal generator 103 and the programmable logic controller 104 are respectively connected with the computer.
The U-shaped slot photoelectric switch is further configured to transmit light to a receiving position 110 (refer to fig. 3) of the U-shaped slot photoelectric switch through a transmitting position 109 (refer to fig. 3) so as to determine whether the transmitting path of the optical fiber is blocked by the optical blocking piece 108, that is, whether the rotor shaft 107 of the stepper motor 102 is aligned with the slot photoelectric switch 106.
In a possible embodiment, the communication signals (including the interference signal, the driving signal, the control signal and the position determining signal) between the stepper motor driver 101, the stepper motor 102, the interference signal generator 103, the programmable logic controller 104 and the computer 105 related to the stepper motor driver and the stepper motor testing method may include, but are not limited to, communication signals corresponding to various industrial communication modes such as UART, RS485 protocol, CAN, LAN and the like.
The stepping motor driver and the stepping motor testing system provided by the application solve the technical problem of low testing efficiency of the open-loop stepping motor driver and the open-loop stepping motor by adopting the stepping motor driver and the stepping motor testing method in the embodiment. Compared with the prior art, the beneficial effects of the stepper motor driver and the stepper motor testing system provided by the embodiment of the application are the same as those of the stepper motor driver and the stepper motor testing method provided by the embodiment, and other technical features of the stepper motor driver and the stepper motor testing system are the same as those disclosed in the method of the previous embodiment, so that the description is omitted.
Example III
The embodiment of the application provides electronic equipment, which comprises: at least one processor; and a memory communicatively linked to the at least one processor; the memory stores instructions executable by the at least one processor, the instructions being executable by the at least one processor to enable the at least one processor to perform the stepper motor driver and the stepper motor testing method of the first embodiment.
Referring now to fig. 5, a schematic diagram of an electronic device suitable for use in implementing embodiments of the present disclosure is shown. The electronic devices in the embodiments of the present disclosure may include, but are not limited to, mobile terminals such as mobile phones, notebook computers, digital broadcast receivers, PDAs (personal digital assistant, personal digital assistants), PADs (tablet computers), PMPs (Portable Media Player, portable multimedia players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and the like, and stationary terminals such as digital TVs, desktop computers, and the like. The electronic device shown in fig. 5 is merely an example and should not be construed to limit the functionality and scope of use of the disclosed embodiments.
As shown in fig. 5, the electronic device may include a processing system (e.g., a central processing unit, a graphics processor, etc.) that may perform various appropriate actions and processes according to a program stored in a Read Only Memory (ROM) or a program loaded from a storage system into a random access memory (RAM, random access memory). In the RAM, various programs and data required for the operation of the electronic device are also stored. The processing system, ROM, and RAM are connected to each other by a bus. Input/output (I/O) interfaces are also linked to the bus.
In general, the following systems may be linked to I/O interfaces: input systems including, for example, touch screens, touch pads, keyboards, mice, image sensors, microphones, accelerometers, gyroscopes, etc.; output systems including, for example, liquid crystal displays (LCDs, liquid crystal display), speakers, vibrators, etc.; storage systems including, for example, magnetic tape, hard disk, etc.; a communication system. The communication system may allow the electronic device to communicate wirelessly or by wire with other devices to exchange data. While electronic devices having various systems are shown in the figures, it should be understood that not all of the illustrated systems are required to be implemented or provided. More or fewer systems may alternatively be implemented or provided.
In particular, according to embodiments of the present disclosure, the processes described above with reference to flowcharts may be implemented as computer software programs. For example, embodiments of the present disclosure include a computer program product comprising a computer program embodied on a computer readable medium, the computer program comprising program code for performing the method shown in the flowcharts. In such an embodiment, the computer program may be downloaded and installed from a network through a communication system, or installed from a storage system, or installed from ROM. The above-described functions defined in the methods of the embodiments of the present disclosure are performed when the computer program is executed by a processing system.
The electronic equipment provided by the application adopts the stepping motor driver and the stepping motor testing method in the embodiment, and solves the technical problem of low testing efficiency of the open-loop stepping motor driver and the open-loop stepping motor. Compared with the prior art, the electronic device provided by the embodiment of the application has the same beneficial effects as the stepper motor driver and the stepper motor testing method provided by the first embodiment, and other technical features in the electronic device are the same as the features disclosed by the method of the previous embodiment, and are not repeated herein.
It should be understood that portions of the present disclosure may be implemented in hardware, software, firmware, or a combination thereof. In the description of the above embodiments, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Example IV
The present embodiment provides a computer readable storage medium having computer readable program instructions stored thereon for performing the method of stepper motor driver and stepper motor testing of the first embodiment described above.
The computer readable storage medium according to the embodiments of the present application may be, for example, a usb disk, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, or device, or a combination of any of the foregoing. More specific examples of the computer-readable storage medium may include, but are not limited to: an electrical link having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-Only Memory (ROM), an erasable programmable read-Only Memory (EPROM, erasable Programmable Read-Only Memory, or flash Memory), an optical fiber, a portable compact disc read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In this embodiment, a computer-readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, or device. Program code embodied on a computer readable storage medium may be transmitted using any appropriate medium, including but not limited to: electrical wires, fiber optic cables, RF (radio frequency), and the like, or any suitable combination of the foregoing.
The above-described computer-readable storage medium may be contained in an electronic device; or may exist alone without being assembled into an electronic device.
The computer-readable storage medium carries one or more programs that, when executed by an electronic device, cause the electronic device to: generating a corresponding interference signal according to preset interference test parameters through an interference signal generator, and sending the corresponding interference signal to a stepping motor driver; receiving control signal parameters sent by a computer through a programmable logic controller, generating corresponding control signals, and sending the control signals to the stepping motor driver; driving a stepping motor to rotate through the stepping motor driver according to the received control signal and interference signal, and detecting whether a marker on a rotor shaft of the stepping motor is in an aligned state with the rotor position sensor through the rotor position sensor after rotation is stopped; if yes, the interference test passes, otherwise, the interference test does not pass.
Computer program code for carrying out operations of the present disclosure may be written in one or more programming languages, including an object oriented programming language such as Java, smalltalk, C ++ and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be linked to the user's computer through any kind of network, including a local area network (LAN, local area network) or a wide area network (WAN, wide Area Network), or it may be linked to an external computer (e.g., through the internet using an internet service provider).
The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The modules described in the embodiments of the present disclosure may be implemented in software or hardware. Wherein the name of the module does not constitute a limitation of the unit itself in some cases.
The computer readable storage medium provided by the application stores computer readable program instructions for executing the stepping motor driver and the stepping motor testing method, and solves the technical problem of low testing efficiency of the open-loop stepping motor driver and the open-loop stepping motor. Compared with the prior art, the beneficial effects of the computer readable storage medium provided by the embodiment of the application are the same as those of the stepper motor driver and the stepper motor testing method provided by the above embodiment, and are not described in detail herein.
Example five
The application also provides a computer program product comprising a computer program which when executed by a processor implements the steps of a stepper motor driver and stepper motor testing method as described above.
The computer program product provided by the application solves the technical problem of low test efficiency of the open-loop stepping motor driver and the open-loop stepping motor. Compared with the prior art, the beneficial effects of the computer program product provided by the embodiment of the application are the same as those of the stepper motor driver and the stepper motor testing method provided by the above embodiment, and are not described in detail herein.
The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the application, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein, or any application, directly or indirectly, within the scope of the application.

Claims (11)

1. The step motor driver and the step motor testing method are characterized by comprising the following steps:
generating a corresponding interference signal according to preset interference test parameters through an interference signal generator, and sending the corresponding interference signal to a stepping motor driver;
receiving control signal parameters sent by a computer through a programmable logic controller, generating corresponding control signals, and sending the control signals to the stepping motor driver;
driving a stepping motor to rotate through the stepping motor driver according to the received control signal and interference signal, and detecting whether a marker on a rotor shaft of the stepping motor is in an aligned state with the rotor position sensor through the rotor position sensor after rotation is stopped;
if yes, the interference test passes, otherwise, the interference test does not pass.
2. The stepper motor driver and stepper motor testing method of claim 1, wherein the rotor position sensor is a slot-type photoelectric switch.
3. The stepper motor driver and stepper motor testing method as defined in claim 2, wherein the slot optoelectronic switch is mounted on a stator of the stepper motor, a marker on a rotor shaft of the stepper motor is an optical baffle, and the step of detecting whether the marker on the rotor shaft of the stepper motor is in alignment with the rotor position sensor by the rotor position sensor comprises:
Judging whether the groove type photoelectric switch is in an off state or not;
if the groove type photoelectric switch is in an off state, an optical baffle on a rotor shaft of the stepping motor is in an alignment state with the groove type photoelectric switch;
and if the groove type photoelectric switch is in a communication state, the light baffle on the rotor shaft of the stepping motor and the groove type photoelectric switch are in a deviation state.
4. The stepper motor driver and stepper motor testing method as defined in claim 3, wherein said slot type optoelectronic switch is a U-shaped slot type optoelectronic switch, said method further comprising, prior to said step of determining whether said slot type optoelectronic switch is in an off state:
transmitting light to a receiving position of the U-shaped groove type photoelectric switch through the transmitting position of the U-shaped groove type photoelectric switch;
if the light emitting path is blocked by the light blocking sheet, the receiving position cannot receive the light and the U-shaped groove type photoelectric switch is in an off state;
if the light emitting path is not blocked by the light blocking sheet, the receiving position can receive the light and the U-shaped groove type photoelectric switch is in a communicating state.
5. The stepper motor driver and stepper motor testing method of claim 2, wherein prior to the step of driving rotation of the stepper motor by the stepper motor driver in accordance with the received control signal and interference signal, the method further comprises:
Detecting whether a marker on a rotor shaft of the stepping motor and the groove type photoelectric switch are in an aligned state or not through the groove type photoelectric switch;
if the slot type photoelectric switch is in a communication state, a marker on a rotor shaft of the stepping motor is not in an alignment state with the slot type photoelectric switch, and the stepping motor is driven to rotate through the stepping motor driver until the slot type photoelectric switch is in an off state.
6. The stepper motor driver and stepper motor testing method as defined in claim 1, wherein said step of driving the stepper motor to rotate by said stepper motor driver based on the received control signal and the interference signal comprises:
generating a driving signal by the stepper motor driver according to the interference signal and the control signal;
transmitting the driving signal to the stepper motor to drive a rotor of the stepper motor to rotate;
and when the operation time length of the stepper motor reaches the preset time length in the interference test parameters, the programmable logic controller is controlled by the computer to stop sending a control signal to the stepper motor driver so as to stop the rotation of the rotor of the stepper motor.
7. The stepper motor driver and stepper motor testing method of claim 2, wherein after the step of detecting by a rotor position sensor whether a marker on a rotor shaft of the stepper motor is in alignment with the rotor position sensor, the method further comprises:
if the marker on the rotor shaft of the stepping motor and the groove type photoelectric switch are detected not to be in an aligned state, the test item corresponding to the interference test parameter does not pass;
and driving the stepping motor to rotate through the stepping motor driver until the marker on the rotor shaft of the stepping motor is in an aligned state with the groove type photoelectric switch.
8. The stepper motor driver and stepper motor testing method of any of claims 1-6, further comprising:
after a test result corresponding to the interference test parameter is obtained, if an unfinished test item exists, generating a corresponding interference signal according to a preset interference test parameter corresponding to a next test item through the interference signal generator, and sending the corresponding interference signal to the stepping motor driver, wherein the test result comprises passing or failing;
Returning to the execution step: and driving the stepping motor to rotate by the stepping motor driver according to the received control signal and the interference signal.
9. A stepper motor driver and stepper motor testing system, comprising:
a stepper motor driver, a stepper motor, an interference signal generator, a programmable logic controller and a computer;
the step motor driver is respectively connected with the step motor, the interference signal generator and the programmable logic controller;
the stepping motor is connected with the programmable logic controller, a rotor position sensor is arranged in the stepping motor, a marker is arranged on a rotor shaft of the stepping motor, and the rotor position sensor is used for detecting whether the marker on the rotor shaft of the stepping motor is in an aligned state with the rotor position sensor or not;
the interference signal generator and the programmable logic controller are respectively connected with the computer.
10. An electronic device, the electronic device comprising:
at least one processor; the method comprises the steps of,
A memory communicatively linked to the at least one processor; wherein,,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the steps of the stepper motor driver and stepper motor testing method of any one of claims 1 to 7.
11. A computer-readable storage medium, wherein a program for realizing the step motor driver and step motor testing method is stored on the computer-readable storage medium, the program for realizing the step motor driver and step motor testing method being executed by a processor to realize the steps of the step motor driver and step motor testing method according to any one of claims 1 to 7.
CN202310838583.4A 2023-07-07 2023-07-07 Stepping motor driver, stepping motor testing method, system, equipment and medium Pending CN116893341A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117192371A (en) * 2023-11-03 2023-12-08 南通清浪智能科技有限公司 Test method and system for motor driver of new energy automobile

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117192371A (en) * 2023-11-03 2023-12-08 南通清浪智能科技有限公司 Test method and system for motor driver of new energy automobile
CN117192371B (en) * 2023-11-03 2024-01-30 南通清浪智能科技有限公司 Test method and system for motor driver of new energy automobile

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