Motor parameter processing platform and method for road-mixed lime soil production

Abstract

The invention discloses a motor parameter processing platform and method for road-mixed lime soil production, belongs to the technical field of electric digital data processing, and aims to improve a selection mode of a subqueue length and obtain a current outlier metric value by removing a singular rotating speed value and a singular current value in motor parameters for road-mixed lime soil production. According to the method, the maneuvering change of the rotating speed value and the current value can be mastered more accurately, the misjudgment probability of the damage condition of the motor is reduced, the sensitivity of estimating the outlier condition generated by the current can be efficiently improved according to the analysis method of the current outlier metric value of the optimal subqueue, and the reliability of the motor is improved. In conclusion, the motor parameter processing platform for the road-mixed lime soil production can efficiently improve the accuracy of the estimation of the outlier condition generated by the current through accurate subqueue analysis and outlier condition estimation, so that the accuracy of the estimation of the outlier condition generated by the current is improved, and the accuracy of the estimation of the outlier condition generated by the current is improved. And the stability and the confidence coefficient of the operation of the motor can be enhanced.

Description

Technical Field

[0001] The present invention belongs to the technical field of electric digital data processing, and particularly relates to a motor parameter processing platform and method for the production of lime soil by road mixing. Background Art

[0002] During the regeneration production of lime soil, that is, lime stabilized soil, it is often as mentioned in the prior art solution with the patent publication number "CN215540154U", which includes a motor connected to the same main shaft. The motor is used to drive the main shaft to traction the mixing mechanism to mix the lime stabilized soil, so as to achieve the regeneration production of the lime stabilized soil.

[0003] During the regeneration production of lime stabilized soil, the operating health status of the motor is crucial. Therefore, it is necessary to measure the operating health status of the motor. Currently, the method for measuring the operating health status of the motor is often as follows: timely obtain the motor operating parameters and form a motor current parameter library. The motor operating parameters include the measurement time point, the current current value, and the current rotational speed value (the rotational speed value of the main shaft) adapted to the current current value; according to the measured current value, obtain the measured rotational speed value adapted to the measured current value from the motor current parameter library; determine the current current value cluster adapted to the measured rotational speed value in the motor current parameter library, and the value obtained by subtracting the current rotational speed corresponding to the current current value in the current current value cluster from the measured rotational speed value conforms to the defined temperature critical value; calculate the damage measurement ratio. When the damage measurement ratio is higher than the defined critical value, it is determined that the motor is in a damaged condition.

[0004] At the site where the motor drives the main shaft to traction the mixing mechanism to mix the lime stabilized soil, outliers of current and rotational speed often occur due to factors such as air pressure and climate. Moreover, the changes in rotational speed and current at different time points or climates are also different. The above method for measuring the operating health status of the motor only adapts to the current current value cluster adapted to the measured rotational speed value, often resulting in inaccurate identification of current outliers. Summary of the Invention

[0005] To solve the defects in the prior art, the present invention proposes a motor parameter processing platform and method for the production of lime soil by road mixing, effectively avoiding the defects that the method for measuring the operating health status of the motor for lime soil by road mixing in the prior art only adapts to the current current value cluster adapted to the measured rotational speed value and the inaccurate identification of current outliers.

[0006] The present invention adopts the following technical solutions.

[0007] A motor parameter processing method for the production of lime soil by road mixing includes:

[0008] The motor drives the main shaft to traction the mixing mechanism to mix the road-mixed lime soil;

[0009] During the period when the motor drives the main shaft to traction the mixing mechanism to mix the road-mixed lime soil, a method for processing motor parameters for the production of road-mixed lime soil further includes:

[0010] Step 1: Receive the rotation speed queue, current queue, and torque queue;

[0011] Step 2: After removing the singular rotation speed values and singular current values in the rotation speed queue and current queue, form a new rotation speed queue and current queue;

[0012] Step 3: Calculate the optimal sub-queue length according to the new rotation speed queue, and cut the last sub-queue in the new current queue as the optimal sub-queue according to the optimal sub-queue length;

[0013] Step 4: Calculate the current outlier metric value for the optimal sub-queue. When the current outlier metric value is higher than the critical value, confirm that the current has an outlier situation and determine that the motor is damaged.

[0014] Preferably, in Step 1, the rotation speed queue is a queue formed by arranging the rotation speed values transmitted from the rotation speed sensor to the industrial control computer in the order of their measurement time points, the current queue is a queue formed by arranging the current values transmitted from the current sensor to the industrial control computer in the order of their measurement time points, and the torque queue is a queue formed by arranging the torque values transmitted from the torque sensor to the industrial control computer in the order of their measurement time points.

[0015] Preferably, in Step 2, the method for removing the singular rotation speed values and singular current values in the rotation speed queue and current queue includes: defining the sub-queue length , splitting the torque queue into sub-queues by using the shift method, calculating the removal factor of each sub-queue , when the removal factor is higher than the critical value, removing the rotation speed values and current values corresponding to the th sub-queue, , where, represents obtaining the highest value within , represents the defined sub-queue length, represents the th torque in the th sub-queue, represents the average of the torques in the th sub-queue.

[0016] Preferably, in Step 2, the method for splitting the torque queue into sub-queues by using the shift method includes: starting from the first torque value in the torque queue, taking each torque value in the torque queue as the initial torque value one by one from front to back, and taking the initial torque value and the Take a torque value as a sub - queue until the sub - queue contains the last torque value of the torque queue.

[0017] Preferably, in step 2, the corresponding rotational speed value and current value of the th sub - queue are the rotational speed value and current value measured during the torque value measurement period corresponding to the

[0018] th sub - queue.

[0019] Preferably, in step 3, the method for calculating the optimal sub - queue length based on the new rotational speed queue includes: calculating the sub - queue cutting factors corresponding to different sub - queue lengths, where here, is the sub - queue length, is the number of elements of the new rotational speed queue, is the start serial number of the sub - queue, is the end serial number of the sub - queue, is the corresponding rotational speed stability parameter of the sub - queue; constructing a cutting factor queue according to the sub - queue cutting factors corresponding to different sub - queue lengths, obtaining the sub - queue cutting factor whose first one is smaller than the sub - queue cutting factors adjacent to its left and right sides in the cutting factor queue, and the sub - queue length corresponding to the obtained sub - queue cutting factor is the optimal sub - queue length.

[0020] Preferably, in step 3, is the variance of queue one, and queue one is composed of the ratios obtained by dividing the rotational speed values corresponding to each serial number in the sub - queue by the rotational speed value corresponding to the previous serial number.

[0021] Preferably, in step 4, the method for calculating the current outlier metric value for the optimal sub - queue includes: calculating the current ratios obtained by dividing the current values corresponding to each serial number in the optimal sub - queue by the current value corresponding to the previous serial number, and all the current ratios form queue two; using the maximum inter - class variance method to perform segmentation on queue two, obtaining the previous segment and the subsequent segment after segmentation, respectively obtaining the means of the previous segment and the subsequent segment, thereby obtaining the previous mean and the subsequent mean respectively, and taking the ratio obtained by dividing the absolute value of the value obtained by subtracting the subsequent mean from the previous mean by the previous mean as the current outlier metric value.

[0022] A motor parameter processing platform for road - mixed lime - soil production, comprising:

[0023] A motor connected to the same main shaft, a current sensor, a torque sensor, a rotational speed sensor, and an industrial control computer, where the current sensor, the torque sensor, and the rotational speed sensor are connected to the industrial control computer; ​

[0024] The motor is used to drive the main shaft to traction the mixing mechanism for mixing the road-mixed lime soil. The current sensor, torque sensor and speed sensor are respectively used to measure the current value of the motor, the torque value of the main shaft and the speed value of the main shaft, and transmit the current value of the motor, the torque value of the main shaft and the speed value of the main shaft into the industrial control computer;

[0025] The units running on the industrial control computer include:

[0026] A receiving unit, a removing unit, a splitting unit and an estimating unit;

[0027] The receiving unit is used to receive the speed queue, current queue and torque queue;

[0028] The removing unit is used to remove the singular speed values and singular current values in the speed queue and current queue, and then form a new speed queue and current queue;

[0029] The splitting unit is used to calculate the optimal sub-queue length according to the new speed queue, and cut the last sub-queue in the new current queue as the optimal sub-queue according to the optimal sub-queue length;

[0030] The estimating unit is used to calculate the current outlier metric value for the optimal sub-queue. When the current outlier metric value is higher than the critical value, it is confirmed that the current has an outlier condition and it is determined that the motor is damaged.

[0031] The beneficial effects of the present invention are that, compared with the prior art, the technical effects of the present invention include:

[0032] By removing the singular speed values and singular current values, improving the selection method of the sub-queue length and obtaining the current outlier metric value, the present invention can more accurately master the dynamic changes of the speed value and current value, reduce the misjudgment probability of the motor damage condition. According to the analysis method of the current outlier metric value of the optimal sub-queue, it can effectively improve the sensitivity of estimating the current outlier condition, prevent the further deterioration caused by the motor damage due to the current outlier condition. In short, the motor parameter processing platform for road-mixed lime soil production can effectively improve the accuracy of estimating the current outlier condition through accurate sub-queue analysis and outlier condition estimation, and can further enhance the stability and confidence of the motor operation. Description of the Drawings

[0033] Figure 1 is the flow chart of the motor parameter processing method for road-mixed lime soil production described in the present invention;

[0034] Figure 2 is the partial structure diagram of the motor parameter processing platform for road-mixed lime soil production described in the present invention. Detailed Embodiments

[0035] To make the objectives, technical solutions, and advantages of the present invention clearer, the following will, in conjunction with the accompanying drawings in the embodiments of the present invention, clearly and completely describe the technical solutions of the present invention. The embodiments described in this application are only some embodiments of the present invention, rather than all embodiments. According to the spirit of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] As Figure 1 shown, a method for processing motor parameters for the production of road-mixed lime soil according to the present invention includes:

[0037] The motor drives the main shaft to drive the mixing mechanism to mix the road-mixed lime soil; the road-mixed lime soil is lime stabilized soil.

[0038] During the process that the motor drives the main shaft to drive the mixing mechanism to mix the road-mixed lime soil, the method for processing motor parameters for the production of road-mixed lime soil further includes:

[0039] Step 1: Receive a rotational speed queue, a current queue, and a torque queue;

[0040] In a preferred but non-limiting embodiment of the present invention, in Step 1, during the process that the motor drives the main shaft to drive the mixing mechanism to mix the road-mixed lime soil, the current can reflect the smoothness of the motor operation. Therefore, in this application, the current queue needs to be received. And because there are corresponding relationships between the rotational speed and torque and the current, the rotational speed queue and the torque queue also need to be received. The rotational speed queue is a queue formed by arranging the rotational speed values transmitted from the rotational speed sensor to the industrial control computer in the order of their measurement time points. The current queue is a queue formed by arranging the current values transmitted from the current sensor to the industrial control computer in the order of their measurement time points. The torque queue is a queue formed by arranging the torque values transmitted from the torque sensor to the industrial control computer in the order of their measurement time points.

[0041] Because the rotational speed values, current values, and torque values at previous time points are used in this platform, the hard disk of the industrial control computer is often used to store these rotational speed values, current values, and torque values.

[0042] Step 2: After removing the abnormal rotational speed values and abnormal current values in the rotational speed queue and the current queue, form a new rotational speed queue and a new current queue;

[0043] The torque queue can often reflect the eccentric rotation conditions generated during the accidental jitter of the main shaft. If there are eccentric rotation conditions, the amplitude of the current change will increase and the change frequency will also become higher. The current value in such a situation is a singular current value with low confidence. Therefore, it is necessary to remove the singular current values under the eccentric rotation conditions generated during the accidental jitter of the main shaft. Since the rotational speed value and the current value are strongly correlated, the change in the rotational speed value often affects the current value. Therefore, it is also necessary to synchronously remove the singular rotational speed values under the eccentric rotation conditions generated during the accidental jitter of the main shaft.

[0044] In a preferred but non-limiting embodiment of the present invention, in step 2, the method for removing the singular rotational speed values and singular current values in the rotational speed queue and the current queue includes: defining the sub-queue length (the sub-queue length is the number of elements in the sub-queue), using the shifting method to split the torque queue into sub-queues, and calculating the removal factor of each sub-queue , when the removal factor is higher than the critical value, removing the rotational speed value and the current value corresponding to the -th sub-queue , where represents obtaining the maximum value within , represents the defined sub-queue length, represents the -th torque in the -th sub-queue, represents the -th average torque in the

[0045] In a preferred but non-limiting embodiment of the present invention, in step 2, the method for splitting the torque queue into sub-queues using the shifting method includes: starting from the first torque value of the torque queue, taking each torque value of the torque queue one by one from the front to the back as the initial torque value, and taking the initial torque value and the adjacent torque values after it as a sub-queue until the sub-queue contains the last torque value of the torque queue.

[0046] In a preferred but non-limiting embodiment of the present invention, in step 2, the rotational speed value and the current value corresponding to the -th sub-queue are the rotational speed value and the current value measured during the measurement period of the torque value corresponding to the -th sub-queue.

[0047] In a preferred but non-limiting embodiment of the present invention, in step 2, the critical value is 10%. The critical value can also be determined according to specific requirements.

[0048] For example, the industrial control computer receives the rotational speed value, the current value, and the torque value transmitted for a set duration to form a rotational speed queue, a current queue, and a torque queue respectively, which are: ,​​​ With , if the defined sub - queue length is three, the torque queue can be sliced into four sub - queues by using the shift method: , , , , and the obtained , and are lower than the critical value, is higher than the critical value. Therefore, the corresponding rotational speed values and current values of the second sub - queue are removed, that is, the and in the rotational speed queue are removed, and the and in the current queue are removed. Subsequently, the new rotational speed queue formed is , and the new current queue is .

[0049] Step 3: Calculate the optimal sub - queue length according to the new rotational speed queue, and cut the last sub - queue in the new current queue as the optimal sub - queue according to the optimal sub - queue length;

[0050] The rotational speed value and the current value are strongly correlated. The change in rotational speed often affects the current. For example, when the change in rotational speed is stable, usually the change in current is also stable; when the change in rotational speed is unstable, the change in current is also unstable. Therefore, when the change in rotational speed is unstable, the actual current situation cannot be analyzed either. So, by analyzing the change in the rotational speed queue, the sub - queue length with relatively stable rotational speed change is found, and the last sub - queue in the new current queue is cut with this sub - queue length as the optimal sub - queue. The current in this optimal sub - queue has the highest confidence level and can best reflect the actual current situation. If the current change in this optimal sub - queue is also very stable, then the current is reasonable; if the current change in this optimal sub - queue is unstable, then the current is outlier.

[0051] In the preferred but non - restrictive embodiment of the present invention, in step 3, the method for calculating the optimal sub - queue length according to the new rotational speed queue includes: calculating the sub - queue cutting factor corresponding to different sub - queue lengths , where is the sub - queue length (the length is the number of elements), , is the number of elements in the new rotational speed queue, is the start serial number of the sub - queue (the start serial number is the serial number of the first element of the sub - queue, and this serial number is the serial number of this element in the new rotational speed queue. The serial numbers of the new rotational speed queue are encoded one by one incrementally from 1 from the front to the back for each element of the new rotational speed queue), is the termination sequence number of the sub - queue (the termination sequence number is the sequence number of the last element of the sub - queue, and this sequence number is the sequence number of this element in the new rotational speed queue), is the sub - queue The corresponding rotational speed stability parameter; construct a cut - off factor queue according to the cut - off factors corresponding to different sub - queue lengths, and obtain the cut - off factor of the sub - queue that is smaller than the cut - off factors of its adjacent sub - queues on both the left and right in the cut - off factor queue. The sub - queue length corresponding to the obtained cut - off factor is the optimal sub - queue length.

[0052] In a preferred but non - limiting embodiment of the present invention, in step 3, specifically select is the sub - queue The variance of queue 1 in the corresponding rotational speed stability parameters. Queue 1 is composed of the ratios obtained by dividing the rotational speed values corresponding to each sequence number in the sub - queue by the rotational speed value corresponding to the previous sequence number. Since there is no rotational speed value corresponding to the sequence number before the first rotational speed value in the sub - queue , the rotational speed value corresponding to the sequence number closest to the previous sequence number outside the sub - queue can be used to calculate the corresponding rotational speed ratio. Just like the rotational speed values of the rotational speed queue corresponding to the sequence numbers in the sub - queue are , the rotational speed value corresponding to the sequence number closest to it outside the sub - queue is , then queue 1 is .

[0053] Just like, if there are eight rotational speed values in the new rotational speed queue, then , for each sub - queue length, there is a corresponding cut - off factor. Form all the cut - off factors into a cut - off factor queue, and obtain the cut - off factor of the sub - queue that is smaller than the cut - off factors of its adjacent sub - queues on both the left and right. The sub - queue length corresponding to the obtained cut - off factor is the optimal sub - queue length. The optimal sub - queue is the sub - queue whose length is the optimal sub - queue length. The last element of the sub - queue is the sub - queue formed by the last current value in the new current queue, that is, the last current value in the new current queue and the adjacent current values before it form the optimal sub - queue.

[0054] Step 4: Calculate the current outlier metric value for the optimal sub - queue. When the current outlier metric value is higher than the critical value, confirm that the current has an outlier situation and determine that the motor is damaged.

[0055] In a preferred but non-limiting embodiment of the present invention, in step 4, the method for calculating the outlier metric value of the current of the optimal sub-queue includes: calculating the current ratio by dividing the current value corresponding to each serial number in the optimal sub-queue by the current value corresponding to its previous serial number, and all the current ratios form queue two; using the Otsu method to perform segmentation on queue two, obtaining the previous segment and the subsequent segment after segmentation, respectively obtaining the means of the previous segment and the subsequent segment, and then respectively obtaining the previous mean and the subsequent mean, and taking the ratio of the absolute value of the value obtained by subtracting the subsequent mean from the previous mean divided by the previous mean as the current outlier metric value.

[0056] Since there is no current value corresponding to the previous serial number corresponding to the first current value in the optimal sub-queue, the current value corresponding to the previous serial number closest to the first current outside the optimal sub-queue can be used to calculate the corresponding current ratio, just like the new current queue is and the optimal sub-queue is , then queue two is , using the Otsu method to perform operations on queue two to obtain a critical value , the current ratios in queue two that are lower than the critical value form the previous segment, and the mean of the current ratios of the previous segment is the previous mean. The current ratios in queue two that are higher than the critical value form the subsequent segment, and the mean of the current ratios of the subsequent segment is the subsequent mean , and the mean of the current ratios of the previous segment is the previous mean Current outlier metric value , when the current outlier metric value is higher than the critical value, it is confirmed that the current has an outlier situation. The critical value can be 10%, and the critical value can also be determined according to specific requirements.

[0057] As Figure 2 shown, a motor parameter processing platform for road-mixed lime soil production according to the present invention includes:

[0058] A motor connected to the main shaft, a current sensor, a torque sensor, a speed sensor, and an industrial control computer, and the current sensor, the torque sensor, and the speed sensor are connected to the industrial control computer;

[0059] The motor is used to drive the main shaft to traction the mixing mechanism to mix the road-mixed lime soil, so as to achieve the recycling production of the road-mixed lime soil. The current sensor, torque sensor and speed sensor are respectively used to measure the current value of the motor, the torque value of the main shaft and the speed value of the main shaft, and transmit the current value of the motor, the torque value of the main shaft and the speed value of the main shaft into the industrial control computer; the current value of the motor, the torque value of the main shaft and the speed value of the main shaft are the motor parameters, and the current value of the motor is the output current value of the motor. The initial measurement time point and measurement frequency of the current sensor, torque sensor and speed sensor are the same. The measurement frequency is the sampling frequency.

[0060] The units running on the industrial control computer include:

[0061] A receiving unit, a removing unit, a splitting unit and an estimating unit;

[0062] The receiving unit is used to receive the speed queue, current queue and torque queue;

[0063] The removing unit is communicatively connected to the receiving unit and is used to remove the singular speed values and singular current values in the speed queue and current queue to form a new speed queue and current queue;

[0064] The splitting unit is communicatively connected to the removing unit and is used to calculate the optimal sub-queue length according to the new speed queue, and cut the last sub-queue in the new current queue as the optimal sub-queue according to the optimal sub-queue length;

[0065] The estimating unit is communicatively connected to the splitting unit and is used to calculate the current outlier metric value for the optimal sub-queue. When the current outlier metric value is higher than the critical value, it is confirmed that the current has an outlier condition and it is determined that the motor is damaged.

[0066] When it is estimated that the current is abnormal, the industrial control computer prompts a message that the motor is damaged on its display screen to notify the maintenance personnel to repair the motor.

[0067] The beneficial effects of the present invention are that, compared with the prior art, the technical effects of the present invention include:

[0068] By removing the singular speed values and singular current values, improving the selection method of the sub-queue length and obtaining the current outlier metric value, the present invention can more accurately master the dynamic changes of the speed value and current value, reduce the misjudgment probability of the motor damage condition, and according to the analysis method of the current outlier metric value of the optimal sub-queue, can effectively improve the sensitivity of estimating the current outlier condition, prevent the further deterioration caused by the motor damage due to the current outlier condition. In short, the motor parameter processing platform for road-mixed lime soil production can effectively improve the accuracy of estimating the current outlier condition through accurate sub-queue analysis and outlier condition estimation, and can further enhance the stability and confidence of the motor operation.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that: still can make modifications or equivalent replacements to the specific implementation manners of the present invention, and any modifications or equivalent replacements that do not depart from the spirit and scope of the present invention shall be covered within the protection scope of the claims of the present invention.

Claims

1. A method for processing motor parameters for the production of road-mixed lime soil, characterized in that, Comprising: A motor drives a main shaft to traction a mixing mechanism to mix road-mixed lime soil; During the process that the motor drives the main shaft to traction the mixing mechanism to mix road-mixed lime soil, a method for processing motor parameters for road-mixed lime soil production further comprises: Step 1: Receive a rotation speed queue, a current queue and a torque queue; Step 2: After removing the singular rotation speed values and singular current values in the rotation speed queue and the current queue, form a new rotation speed queue and a new current queue; Step 3: Calculate the optimal sub-queue length according to the new rotation speed queue, and cut the last sub-queue in the new current queue as the optimal sub-queue according to the optimal sub-queue length; Step 4: Calculate the current outlier metric value for the optimal sub-queue. When the current outlier metric value is higher than the critical value, confirm that an outlier condition occurs in the current and determine that the motor is damaged.

2. The method for processing motor parameters for road-mixed lime soil production according to claim 1, characterized in that, In Step 1, the rotation speed queue is a queue formed by arranging the rotation speed values transmitted from a rotation speed sensor to an industrial control computer in the order of their measurement time points. The current queue is a queue formed by arranging the current values transmitted from a current sensor to the industrial control computer in the order of their measurement time points. The torque queue is a queue formed by arranging the torque values transmitted from a torque sensor to the industrial control computer in the order of their measurement time points.

3. The method for processing motor parameters for road-mixed lime soil production according to claim 2, wherein, In step 2, the method for removing the singular rotational speed values and singular current values in the rotational speed queue and the current queue includes: defining the sub-queue length , using the shifting method to divide the torque queue into sub-queues, and calculating the removal factor of each sub-queue . When the removal factor is higher than the critical value, remove the corresponding rotational speed value and current value of the -th sub-queue . Here represents obtaining the highest value within , represents the defined sub-queue length represents the -th -th torque in the -th sub-queue represents the mean of the torques in the -th sub-queue 4. The method for processing motor parameters for the production of lime-fly ash soil in road mixing according to claim 3, wherein In step 2, the method of using the shift method to divide the torque queue into sub-queues includes: starting from the first torque value in the torque queue, taking each torque value in the torque queue one by one from front to back as the initial torque value, and taking the initial torque value and the adjacent torque values after it as a sub-queue until the sub-queue contains the last torque value in the torque queue.

5. The method for processing motor parameters for road-mixed lime soil production according to claim 4, characterized in that, In step 2, the rotational speed value and current value corresponding to the th sub-queue are the rotational speed value and current value measured during the torque value measurement period corresponding to the th sub-queue.

6. The method for processing motor parameters for road-mixed lime soil production according to claim 5, characterized in that, In Step 2, the critical value is 10%.

7. The method for processing motor parameters for road-mixed lime soil production according to claim 6, characterized in that In step 3, the method for calculating the optimal sub-queue length according to the new rotation speed queue includes: calculating the sub-queue cutting factors corresponding to different sub-queue lengths , where is the sub-queue length, , is the number of elements in the new rotation speed queue, is the start serial number of the sub-queue, is the termination serial number of the sub-queue, is the rotation speed stability parameter corresponding to the sub-queue ; constructing a cutting factor queue according to the sub-queue cutting factors corresponding to different sub-queue lengths, obtaining the sub-queue cutting factor in the cutting factor queue that is smaller than the sub-queue cutting factors adjacent to its left and right sides, and the sub-queue length corresponding to the obtained sub-queue cutting factor is the optimal sub-queue length.

8. The method for processing motor parameters for road-mixed lime soil production according to claim 7, wherein, In step 3, specifically select is the sub-queue the variance of queue 1 in the corresponding rotational speed stability parameter, and queue 1 is composed of the ratio obtained by dividing the rotational speed value corresponding to each serial number in the sub-queue by the rotational speed value corresponding to the previous serial number.

9. The method for processing motor parameters for road-mixed lime soil production according to claim 8, characterized in that, In Step 4, the method for calculating the current outlier metric value for the optimal sub-queue includes: calculating the current ratio by dividing the current value corresponding to each serial number in the optimal sub-queue by the current value corresponding to its previous serial number, and all the current ratios form Queue Two; use the maximum between-class variance method to perform segmentation on Queue Two, obtain the prior segment and the posterior segment after segmentation, respectively obtain the means of the prior segment and the posterior segment, respectively obtain the prior mean and the posterior mean accordingly, and take the ratio of the absolute value of the value obtained by subtracting the posterior mean from the prior mean divided by the prior mean as the current outlier metric value.

10. A motor parameter processing platform for the production of road-mixed lime soil, characterized in that, Comprising: A motor connected to the main shaft, a current sensor, a torque sensor, a rotation speed sensor and an industrial control computer. The current sensor, the torque sensor and the rotation speed sensor are connected to the industrial control computer; The motor is used to drive the main shaft to traction the mixing mechanism to mix road-mixed lime soil. The current sensor, the torque sensor and the rotation speed sensor are respectively used to measure the current value of the motor, the torque value of the main shaft and the rotation speed value of the main shaft, and transmit the current value of the motor, the torque value of the main shaft and the rotation speed value of the main shaft into the industrial control computer; The units running on the industrial control computer include: A receiving unit, a removing unit, a segmentation unit and an estimation unit; The receiving unit is used to receive the rotation speed queue, the current queue and the torque queue; The removing unit is used to remove the singular rotation speed values and singular current values in the rotation speed queue and the current queue and then form a new rotation speed queue and a new current queue; The segmentation unit is used to calculate the optimal sub-queue length according to the new rotation speed queue, and cut the last sub-queue in the new current queue as the optimal sub-queue according to the optimal sub-queue length; The estimation unit is used to calculate the current outlier metric value for the optimal sub-queue. When the current outlier metric value is higher than the critical value, confirm that an outlier condition occurs in the current and determine that the motor is damaged.

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