High-efficiency synchronous drive control system based on multiple AC servo motors

Abstract

The present invention discloses a high-efficiency synchronous drive control system based on multiple AC servo motors. The control system comprises a motor numbering module, a motor power supply module, a current monitoring module, a depth screening module and an information sending module. The motor numbering module is used to number each motor to be tested. The motor power supply module supplies the same voltage to each motor to be tested for no-load operation. The current monitoring module collects the operating current of each motor to be tested after each motor to be tested has run for a period of time. When the current of a motor to be tested is outside the fluctuation range of a current threshold, the first-level identification adding module is activated. When the current of each motor to be tested is within the fluctuation range of the current threshold, the depth screening module is activated to collect and analyze the vibration signal and speed information of the motor to be tested and judge whether the motor to be tested is used as a synchronous drive motor based on the information.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and in particular to a high-efficiency synchronous drive control system based on multiple AC servo motors. Background Art

[0002] A servo motor refers to an engine that controls the operation of mechanical elements in a servo system. It is an auxiliary motor indirect speed change device. The servo motor can control speed and position accuracy very accurately, and can convert voltage signals into torque and speed to drive the controlled object. The rotor speed of the servo motor is controlled by the input signal and can respond quickly. In the automatic control system, it is used as an actuator and has the characteristics of small electromechanical time constant, high linearity, and starting voltage. It can convert the received electrical signal into angular displacement or angular velocity output on the motor shaft. In some industries, such as the automotive painting industry, the transmission chain is generally hundreds of meters or even thousands of meters, so multiple motors are required to drive the transmission chain at the same time. However, in the prior art, when driving the transmission chain, the chain may break or the driving efficiency may be low. Summary of the invention

[0003] The object of the present invention is to provide a high-efficiency synchronous drive control system based on multiple AC servo motors to solve the problems raised in the above background technology.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a high-efficiency synchronous drive control system based on multiple AC servo motors, the control system comprising a motor numbering module, a motor power supply module, a current monitoring module, a depth screening module and an information sending module, the motor numbering module is used to number each motor to be tested, the motor power supply module supplies the same voltage to each motor to be tested for no-load operation, the current monitoring module collects the operating current of each motor to be tested after each motor to be tested has run for a period of time, and when the current of a motor to be tested is outside the fluctuation range of the current threshold, the first-level identification adding module is operated, and when the current of each motor to be tested is within the fluctuation range of the current threshold, the depth screening module is ordered to collect and analyze the vibration signal and speed information of the motor to be tested and judge whether the motor to be tested is used as a synchronous drive motor based on this, the information sending module comprises a first-level identification adding module, the first-level identification adding module transmits the number of the motor to be tested to the user, and adds a first-level identification to the number, wherein the first-level identification is used to identify that the motor needs to be replaced.

[0005] Furthermore, the information sending module also includes a secondary identification adding module and a tertiary identification adding module, the secondary identification adding module transmits the number of the motor to be tested to the user and adds a secondary identification to the number, the tertiary identification adding module transmits the number of the motor to be tested to the user and adds a tertiary identification to the number, wherein the secondary identification is used to identify that it is recommended to repair and replace the motor, and the tertiary identification is used to identify that the motor to be tested is a synchronously driven motor; the depth screening module includes a vibration detection module and a speed detection module, the vibration detection module includes a vibration information collection module, a vibration intensity comparison module, a vibration frequency calculation module and an interval number statistics module, the vibration information collection module is used to arbitrarily select k consecutive sampling intervals during operation Continue to collect vibration information of the motor to be tested. The vibration intensity acquisition and comparison module is used to obtain the average vibration intensity Pb ​​of each motor to be tested in these k sampling intervals, and calculate the absolute value of the difference between it and the average vibration intensity Pa of the motor to be tested when the vibration information is collected most recently. If the absolute value is within the preset fluctuation range, the vibration frequency calculation module is ordered to collect and calculate the vibration frequency Rb=1 / Tb of each sampling interval of the motor to be tested, wherein Tb is the minimum time interval between two adjacent vibrations in the corresponding sampling interval. The interval number statistics comparison module counts the number of intervals b in which the vibration frequency Rb of a motor to be tested is greater than or equal to the abnormal vibration frequency Rq. When the interval number b of the motor to be tested is less than the interval number threshold, the speed detection module is operated.

[0006] Furthermore, the speed detection module includes a first speed acquisition module, a second speed acquisition module, a timing duration acquisition module, a speed index calculation module and a speed index comparison module. The first speed acquisition module is used to collect the speed V1 of each motor to be tested when it is running at no load. The second speed acquisition module is used to collect the speed V2 of the motor to be tested after an interval T1 after the motor to be tested stops providing voltage. The timing duration acquisition module is used to time the time for the speed of the motor to be tested to be reduced to 0, and the time duration is designed to be ΔT. The speed index calculation module calculates the speed index according to the speed V1, the speed V2, and the timing duration ΔT. The speed index comparison module compares the speed index with the speed index threshold. When the speed index of a motor to be tested is outside the fluctuation range of the speed index threshold, the secondary identification adding module is operated. When the speed index of a motor to be tested is within the fluctuation range of the speed index threshold, the tertiary identification adding module is operated.

[0007] Furthermore, the control system also includes a high-efficiency synchronous drive control method for the motor, and the control method includes the following:

[0008] The motors to be tested are numbered and supplied with the same voltage for no-load operation. The motors to be tested are motors used for synchronous driving together.

[0009] After each motor to be tested runs for a period of time, the running current of each motor to be tested is collected. If the current of a motor to be tested is outside the fluctuation range of the current threshold, the number of the motor to be tested is transmitted to the user, and a primary identifier is added to the number, and the primary identifier is used to identify that the motor needs to be replaced;

[0010] If the currents of the motors to be tested are all within the fluctuation range of the current threshold, the vibration signals and speed information of the motors to be tested are collected and analyzed to determine whether the motors to be tested are used as synchronously driven motors.

[0011] Further, the collecting and analyzing the vibration signal and speed information of the motor to be tested and judging whether the motor to be tested is used as a synchronous drive motor includes the following:

[0012] During the operation, k consecutive sampling intervals are randomly selected to continuously collect the vibration information of the motor to be tested.

[0013] Get the average vibration intensity Pb ​​of each motor to be tested in these k sampling intervals,

[0014] If the absolute value of the difference between the average vibration intensity Pb ​​of a motor to be tested and the average vibration intensity Pa of the motor to be tested when the vibration information was collected most recently is within a preset fluctuation range, the vibration frequency Rb=1 / Tb of each sampling interval of the motor to be tested is collected and calculated respectively, wherein Tb is the minimum time interval between two adjacent vibrations in the corresponding sampling interval; the number of intervals b in which the vibration frequency Rb is greater than or equal to the abnormal vibration frequency Rq is counted; if the number of intervals b of a motor to be tested is less than the interval number threshold, the speed information of each motor to be tested is detected and collected, and whether the motor to be tested is used as a synchronous drive motor is further determined based on the speed information;

[0015] Otherwise, the serial number of the motor to be inspected is transmitted to the user, and a primary identifier is added to the serial number, wherein the primary identifier is used to identify that the motor needs to be replaced.

[0016] Furthermore, the further determining whether the motor to be tested is used as a synchronously driven motor according to the speed information includes:

[0017] The speed V1 of each motor to be tested when it is running without load is collected. After the voltage is stopped, the speed V2 of the motor to be tested is collected after an interval of T1. At the same time, the time length for the speed of the motor to be tested to decrease to 0 is timed. The time length is designed to be ΔT, and the speed index of each motor to be tested is calculated based on this.

[0018] The speed index of each motor to be tested is compared with the speed index threshold. If the speed index of a motor to be tested is outside the fluctuation range of the speed index threshold, the number of the motor to be tested is transmitted to the user, and a secondary identification is added to the number, and the secondary identification is used to indicate that it is recommended to repair or replace the motor; if the speed index of a motor to be tested is within the fluctuation range of the speed index threshold, the number of the motor to be tested is transmitted to the user, and a tertiary identification is added to the number, and the tertiary identification is used to identify that the motor to be tested is a synchronously driven motor.

[0019] Furthermore, before obtaining the average vibration intensity Pb ​​of each motor to be tested within the sampling time, the method further includes: pre-screening the vibration information of each sampling interval to filter out the vibration information with a vibration intensity less than a vibration intensity threshold.

[0020] Further, the calculation of the speed index of each motor to be tested includes the following:

[0021] The speed index Z of a motor to be tested is (ΔV-ΔVmin) / (ΔVmax-ΔVmin)+(ΔT-ΔTmin) / (ΔTmax-ΔTmin), wherein ΔV of a motor to be tested is V2-V1, ΔVmin is the minimum value of ΔV of each motor to be tested, ΔVmax is the maximum value of ΔV of each motor to be tested, ΔTmin is the minimum value of ΔT of each motor to be tested, and ΔTmax is the maximum value of ΔT of each motor to be tested.

[0022] Compared with the prior art, the beneficial effect achieved by the present invention is that the present invention reduces the chain breakage during the driving of the motors by selecting motors with similar performance to drive the chain together, thereby further improving the driving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 It is a module schematic diagram of the high-efficiency synchronous drive control system based on multiple AC servo motors of the present invention. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figure 1 The present invention provides a technical solution: a high-efficiency synchronous drive control system based on multiple AC servo motors, the control system comprising a motor numbering module, a motor power supply module, a current monitoring module, a depth screening module and an information sending module, the motor numbering module is used to number each motor to be tested, the motor power supply module supplies the same voltage to each motor to be tested for no-load operation, the current monitoring module collects the operating current of each motor to be tested after each motor to be tested has run for a period of time, when the current of a motor to be tested is outside the fluctuation range of the current threshold, the first-level identification adding module is operated, when the current of each motor to be tested is within the fluctuation range of the current threshold, the depth screening module is operated to collect and analyze the vibration signal and speed information of the motor to be tested and judge whether the motor to be tested is used as a synchronous drive motor based on this, the information sending module comprises a first-level identification adding module, the first-level identification adding module transmits the number of the motor to be tested to the user, and adds a first-level identification to the number, wherein the first-level identification is used to identify that the motor needs to be replaced.

[0027] The information sending module also includes a secondary identification adding module and a tertiary identification adding module. The secondary identification adding module transmits the number of the motor to be tested to the user and adds a secondary identification to the number. The tertiary identification adding module transmits the number of the motor to be tested to the user and adds a tertiary identification to the number, wherein the secondary identification is used to identify that it is recommended to repair and replace the motor, and the tertiary identification is used to identify that the motor to be tested is a synchronously driven motor; the depth screening module includes a vibration detection module and a speed detection module. The vibration detection module includes a vibration information collection module, a vibration intensity comparison module, a vibration frequency calculation module and an interval number statistics module. The vibration information collection module is used to arbitrarily select k consecutive sampling intervals during operation for continuous collection. The vibration information of the motor to be tested, the vibration intensity acquisition comparison module is used to obtain the average vibration intensity Pb ​​of each motor to be tested in these k sampling intervals, and calculate the absolute value of the difference between it and the average vibration intensity Pa of the motor to be tested when the vibration information is collected most recently. If the absolute value is within the preset fluctuation range, the vibration frequency calculation module is ordered to collect and calculate the vibration frequency Rb=1 / Tb of each sampling interval of the motor to be tested, wherein Tb is the minimum time interval between two adjacent vibrations in the corresponding sampling interval. The interval number statistics comparison module counts the number of intervals b in which the vibration frequency Rb of a motor to be tested is greater than or equal to the abnormal vibration frequency Rq, and the speed detection module is operated when the interval number b of the motor to be tested is less than the interval number threshold.

[0028] The speed detection module includes a first speed acquisition module, a second speed acquisition module, a timing duration acquisition module, a speed index calculation module and a speed index comparison module. The first speed acquisition module is used to collect the speed V1 of each motor to be tested when it is running at no load. The second speed acquisition module is used to collect the speed V2 of the motor to be tested after the interval T1 after the motor to be tested stops providing voltage. The timing duration acquisition module is used to time the time when the speed of the motor to be tested is reduced to 0, and the time duration is designed to be ΔT. The speed index calculation module calculates the speed index according to the speed V1, the speed V2, and the timing duration ΔT. The speed index comparison module compares the speed index with the speed index threshold. When the speed index of a motor to be tested is outside the fluctuation range of the speed index threshold, the secondary identification adding module is operated. When the speed index of a motor to be tested is within the fluctuation range of the speed index threshold, the tertiary identification adding module is operated.

[0029] The control system also includes a high-efficiency synchronous drive control method for the motor, and the control method includes the following:

[0030] The motors to be tested are numbered and supplied with the same voltage for no-load operation. The motors to be tested are motors used for synchronous driving together.

[0031] After each motor to be tested runs for a period of time, the running current of each motor to be tested is collected. If the current of a motor to be tested is outside the fluctuation range of the current threshold, the number of the motor to be tested is transmitted to the user, and a primary identifier is added to the number, and the primary identifier is used to identify that the motor needs to be replaced;

[0032] If the currents of the motors to be tested are all within the fluctuation range of the current threshold, the vibration signals and speed information of the motors to be tested are collected and analyzed to determine whether the motors to be tested are used as synchronously driven motors.

[0033] The collecting and analyzing the vibration signal and the speed information of the motor to be tested and judging whether the motor to be tested is used as a synchronous drive motor comprises the following steps:

[0034] During the operation, k consecutive sampling intervals are randomly selected to continuously collect vibration information of the motor to be tested, and the vibration information of each sampling interval is pre-screened to filter out vibration information with a vibration intensity less than a vibration intensity threshold;

[0035] Get the average vibration intensity Pb ​​of each motor to be tested in these k sampling intervals,

[0036] If the absolute value of the difference between the average vibration intensity Pb ​​of a motor to be tested and the average vibration intensity Pa of the motor to be tested when the vibration information was collected most recently is within a preset fluctuation range, the vibration frequency Rb=1 / Tb of each sampling interval of the motor to be tested is collected and calculated respectively, wherein Tb is the minimum time interval between two adjacent vibrations in the corresponding sampling interval; the number of intervals b in which the vibration frequency Rb is greater than or equal to the abnormal vibration frequency Rq is counted; if the number of intervals b of a motor to be tested is less than the interval number threshold, the speed information of each motor to be tested is detected and collected, and whether the motor to be tested is used as a synchronous drive motor is further determined based on the speed information;

[0037] Otherwise, the serial number of the motor to be inspected is transmitted to the user, and a primary identifier is added to the serial number, wherein the primary identifier is used to identify that the motor needs to be replaced.

[0038] The further determining whether the motor to be tested is used as a synchronous drive motor according to the speed information includes:

[0039] The speed V1 of each motor to be tested when it is running without load is collected. After the voltage is stopped, the speed V2 of the motor to be tested is collected after an interval of T1. At the same time, the time length for the speed of the motor to be tested to decrease to 0 is timed. The time length is designed to be ΔT, and the speed index of each motor to be tested is calculated based on this.

[0040] The speed index Z of a motor to be tested = (ΔV-ΔVmin) / (ΔVmax-ΔVmin)+(ΔT-ΔTmin) / (ΔTmax-ΔTmin), wherein ΔV of a motor to be tested = V2-V1, ΔVmin is the minimum value of ΔV of each motor to be tested, ΔVmax is the maximum value of ΔV of each motor to be tested, ΔTmin is the minimum value of ΔT of each motor to be tested, and ΔTmax is the maximum value of ΔT of each motor to be tested;

[0041] The speed index of each motor to be tested is compared with the speed index threshold. If the speed index of a motor to be tested is outside the fluctuation range of the speed index threshold, the number of the motor to be tested is transmitted to the user, and a secondary identification is added to the number, and the secondary identification is used to indicate that it is recommended to repair or replace the motor; if the speed index of a motor to be tested is within the fluctuation range of the speed index threshold, the number of the motor to be tested is transmitted to the user, and a tertiary identification is added to the number, and the tertiary identification is used to identify that the motor to be tested is a synchronously driven motor. After the power supply to the motor is stopped, the motor will continue to rotate due to inertia. However, due to factors such as bearing wear in each motor, contact between the shaft end seal and the output shaft, the time when the motor finally stops rotating will be inconsistent. In order to prevent the transmission chain from being damaged due to inconsistent motor speeds at the end, the speed of the motor after the power supply is stopped is used as an influencing factor of whether to use it to drive the transmission chain together, thereby improving the driving effect of the motor. When a first-level mark is added to the motor number, it means that the motor must be replaced, otherwise it will affect the driving effect of driving all motors. When a second-level mark is added to the motor number, it means that the motor can be replaced, and the driving effect will be better after replacing the motor. When a third-level mark is added to the motor number, it means that the motor can be used as a motor for a common drive transmission chain.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-efficiency synchronous drive control system based on multiple AC servo motors, characterized in that: The control system includes a motor numbering module, a motor power supply module, a current monitoring module, a depth screening module and an information sending module, wherein the motor numbering module is used to number each motor to be tested, the motor power supply module supplies the same voltage to each motor to be tested for no-load operation, the current monitoring module collects the operating current of each motor to be tested after each motor to be tested has run for a period of time, and when the current of a motor to be tested is outside the fluctuation range of the current threshold, the first-level identification adding module is operated, and when the current of each motor to be tested is within the fluctuation range of the current threshold, the depth screening module is operated to collect and analyze the vibration signal and speed information of the motor to be tested and judge whether the motor to be tested is used as a synchronous drive motor accordingly, and the information sending module includes a first-level identification adding module, which transmits the number of the motor to be tested to the user and adds a first-level identification to the number, wherein the first-level identification is used to identify that the motor needs to be replaced.

2. The high-efficiency synchronous drive control system based on multiple AC servo motors according to claim 1, characterized in that: The information sending module also includes a secondary identification adding module and a tertiary identification adding module. The secondary identification adding module transmits the number of the motor to be tested to the user and adds a secondary identification to the number. The tertiary identification adding module transmits the number of the motor to be tested to the user and adds a tertiary identification to the number, wherein the secondary identification is used to identify that it is recommended to repair and replace the motor, and the tertiary identification is used to identify that the motor to be tested is a synchronously driven motor; the depth screening module includes a vibration detection module and a speed detection module. The vibration detection module includes a vibration information collection module, a vibration intensity comparison module, a vibration frequency calculation module and an interval number statistics module. The vibration information collection module is used to arbitrarily select k consecutive sampling intervals during operation for continuous collection. The vibration information of the motor to be tested, the vibration intensity acquisition comparison module is used to obtain the average vibration intensity Pb ​​of each motor to be tested in these k sampling intervals, and calculate the absolute value of the difference between it and the average vibration intensity Pa of the motor to be tested when the vibration information is collected most recently. If the absolute value is within the preset fluctuation range, the vibration frequency calculation module is ordered to collect and calculate the vibration frequency Rb=1 / Tb of each sampling interval of the motor to be tested, wherein Tb is the minimum time interval between two adjacent vibrations in the corresponding sampling interval. The interval number statistics comparison module counts the number of intervals b in which the vibration frequency Rb of a motor to be tested is greater than or equal to the abnormal vibration frequency Rq, and the speed detection module is operated when the interval number b of the motor to be tested is less than the interval number threshold.

3. The high-efficiency synchronous drive control system based on multiple AC servo motors according to claim 2, characterized in that: The speed detection module includes a first speed acquisition module, a second speed acquisition module, a timing duration acquisition module, a speed index calculation module and a speed index comparison module. The first speed acquisition module is used to collect the speed V1 of each motor to be tested when it is running at no load. The second speed acquisition module is used to collect the speed V2 of the motor to be tested after the interval T1 after the motor to be tested stops providing voltage. The timing duration acquisition module is used to time the time when the speed of the motor to be tested is reduced to 0, and the time duration is designed to be ΔT. The speed index calculation module calculates the speed index according to the speed V1, the speed V2, and the timing duration ΔT. The speed index comparison module compares the speed index with the speed index threshold. When the speed index of a motor to be tested is outside the fluctuation range of the speed index threshold, the secondary identification adding module is operated. When the speed index of a motor to be tested is within the fluctuation range of the speed index threshold, the tertiary identification adding module is operated. Among them, the speed index Z = (ΔV-ΔVmin) / (ΔVmax-ΔVmin)+(ΔT-ΔTmin) / (ΔTmax-ΔTmin), among which, ΔV of a motor to be tested = V2-V1, ΔVmin is the minimum value of ΔV of each motor to be tested, ΔVmax is the maximum value of ΔV of each motor to be tested, ΔTmin is the minimum value of ΔT of each motor to be tested, and ΔTmax is the maximum value of ΔT of each motor to be tested.

4. The high-efficiency synchronous drive control system based on multiple AC servo motors according to claim 3 is characterized in that: The control system also includes a high-efficiency synchronous drive control method for the motor, the control method includes the following: The motors to be tested are numbered and supplied with the same voltage for no-load operation. The motors to be tested are motors used for synchronous driving together. After each motor to be tested runs for a period of time, the running current of each motor to be tested is collected. If the current of a motor to be tested is outside the fluctuation range of the current threshold, the number of the motor to be tested is transmitted to the user, and a primary identifier is added to the number, and the primary identifier is used to identify that the motor needs to be replaced; If the currents of the motors to be tested are all within the fluctuation range of the current threshold, the vibration signals and speed information of the motors to be tested are collected and analyzed to determine whether the motors to be tested are used as synchronously driven motors.

5. The high-efficiency synchronous drive control system based on multiple AC servo motors according to claim 4, characterized in that: The collecting and analyzing the vibration signal and the speed information of the motor to be tested and judging whether the motor to be tested is used as a synchronous drive motor comprises the following steps: During the operation, k consecutive sampling intervals are randomly selected to continuously collect the vibration information of the motor to be tested. Get the average vibration intensity Pb ​​of each motor to be tested in these k sampling intervals, If the absolute value of the difference between the average vibration intensity Pb ​​of a motor to be tested and the average vibration intensity Pa of the motor to be tested when the vibration information was collected most recently is within a preset fluctuation range, the vibration frequency Rb=1 / Tb of each sampling interval of the motor to be tested is collected and calculated respectively, wherein Tb is the minimum time interval between two adjacent vibrations in the corresponding sampling interval; the number of intervals b in which the vibration frequency Rb is greater than or equal to the abnormal vibration frequency Rq is counted; if the number of intervals b of a motor to be tested is less than the interval number threshold, the speed information of each motor to be tested is detected and collected, and whether the motor to be tested is used as a synchronous drive motor is further determined based on the speed information; Otherwise, the serial number of the motor to be inspected is transmitted to the user, and a primary identifier is added to the serial number, wherein the primary identifier is used to identify that the motor needs to be replaced.

6. The high-efficiency synchronous drive control system based on multiple AC servo motors according to claim 5, characterized in that: The further determining whether the motor to be tested is used as a synchronous drive motor according to the speed information includes: The speed V1 of each motor to be tested when it is running without load is collected. After the voltage is stopped, the speed V2 of the motor to be tested is collected after an interval of T1. At the same time, the time length for the speed of the motor to be tested to decrease to 0 is timed. The time length is designed to be ΔT, and the speed index of each motor to be tested is calculated based on this. The speed index of each motor to be tested is compared with the speed index threshold. If the speed index of a motor to be tested is outside the fluctuation range of the speed index threshold, the number of the motor to be tested is transmitted to the user, and a secondary identification is added to the number, and the secondary identification is used to indicate that it is recommended to repair or replace the motor; if the speed index of a motor to be tested is within the fluctuation range of the speed index threshold, the number of the motor to be tested is transmitted to the user, and a tertiary identification is added to the number, and the tertiary identification is used to identify that the motor to be tested is a synchronously driven motor.

7. The high-efficiency synchronous drive control system based on multiple AC servo motors according to claim 6, characterized in that: Before obtaining the average vibration intensity Pb ​​of each motor to be tested within the sampling time, the method further includes: pre-screening the vibration information of each sampling interval to filter out the vibration information with a vibration intensity less than a vibration intensity threshold.

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