CN119024220A - An intelligent detection system and method for motor drive inverter system - Google Patents
An intelligent detection system and method for motor drive inverter system Download PDFInfo
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Abstract
本发明涉及电机系统检测技术领域，具体为一种应用于电机驱动逆变系统的智能化检测系统及方法，包括对历史设备中的历史电机的运行状态进行分析，得到特征历史电机运行记录；获取电机驱动逆变系统的特征历史电机运行记录，评估历史电机的运行状态受电机运行参数的影响程度，得到特征电机运行参数数据；分析历史电机中的不同项电机运行参数之间的相互影响程度，得到目标影响数据；基于电机驱动逆变系统，对当前周期内设备内的电机逆向驱动过程进行数据监测，结合目标影响数据，对当前周期内的电机运行状态进行实时评估，并对电机驱动逆变系统中的电机进行智能化检测。
The present invention relates to the field of motor system detection technology, and specifically to an intelligent detection system and method applied to a motor drive inverter system, comprising analyzing the operating status of historical motors in historical equipment to obtain characteristic historical motor operation records; acquiring characteristic historical motor operation records of the motor drive inverter system, evaluating the degree to which the operating status of the historical motor is affected by motor operating parameters, and obtaining characteristic motor operating parameter data; analyzing the degree of mutual influence between different motor operating parameters in the historical motor to obtain target influence data; based on the motor drive inverter system, performing data monitoring on the motor reverse drive process in the equipment in the current cycle, combining the target influence data, performing real-time evaluation on the motor operating status in the current cycle, and performing intelligent detection on the motor in the motor drive inverter system.
Description
Technical Field
The invention relates to the technical field of motor system detection, in particular to an intelligent detection system and method applied to a motor driving inversion system.
Background
With the rapid growth of new energy vehicles in recent years, the motor driving inverter system is an indispensable part of the new energy vehicles, the motor driving inverter system is a system for converting direct current electric energy into alternating current electric energy to drive a motor, the inverter is a key component of the system and can convert the direct current electric energy into alternating current electric energy with controllable frequency and amplitude, so that accurate control of motor speed and torque is realized, the motor driving inverter system is very key to the normal operation of the motor, and in all motor driving inverter systems on the market, part of motor driving inverter systems still lack intelligent detection systems, so that the normal operation of the motor driving inverter systems cannot be sufficiently guaranteed, the motor driving inverter systems lack intelligent detection systems can encounter the following problems, 1, fault detection and diagnosis are delayed, the motor driving inverter systems cannot detect faults in time, the faults cannot be processed in time, and the reliability and stability of the motor systems are influenced; 2. the maintenance cost is increased, and the motor and related equipment can only be repaired after the failure due to the lack of predictive maintenance capability of the equipment, so that the passive maintenance mode greatly increases the maintenance cost and the downtime; 3. the service life of the equipment is shortened, the motor driving inverter system lacking an intelligent detection system cannot monitor and adjust the operation parameters of the equipment in real time, and overload and overheat of the motor are easily caused, so that the service life of the equipment is seriously shortened; 4. the operation efficiency is reduced, and the lack of an intelligent detection system may cause unstable operation, excessive energy consumption or low efficiency of the motor, thereby affecting the efficiency and performance of the whole system.
Disclosure of Invention
The invention aims to provide an intelligent detection system and method applied to a motor driving inversion system, so as to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: an intelligent detection method applied to a motor-driven inverter system, the method comprising:
Step S100: acquiring a marking historical operation record of a historical motor from a motor driving inversion system, acquiring historical marking motor operation data from the marking historical operation record, and analyzing the operation state of the historical motor in the historical equipment to obtain a characteristic historical motor operation record;
Step S200: acquiring a characteristic historical motor operation record of a motor driving inversion system, acquiring characteristic motor operation parameter data from the characteristic historical motor operation data record, and evaluating the influence degree of the operation state of the historical motor on the motor operation parameters to obtain the characteristic motor operation parameter data;
Step S300: acquiring a characteristic historical motor operation record of a historical motor, and analyzing the degree of interaction among different motor operation parameters in the historical motor by combining characteristic motor operation parameter data to obtain target influence data;
Step S400: based on the motor driving inversion system, the data monitoring is carried out on the motor reverse driving process in the equipment in the current period, the real-time evaluation is carried out on the motor running state in the current period by combining the target influence data, and the intelligent detection is carried out on the motor in the motor driving inversion system.
Further, step S100 includes:
Step S101: setting a characteristic unit time length, and collecting the data of the historical motors in the monitored historical equipment at intervals of the unit time length in a historical period to obtain a historical operation record of the historical motors in the historical equipment;
Step S102: each historical operation record of a plurality of historical motors of the same motor type of the historical motors is obtained from the motor-driven inversion system and used as a marking historical operation record of the historical motors, each marking historical operation record of the historical motors is ordered according to the sequence according to the time point when the historical operation record is obtained by the motor-driven inversion system, and historical marking motor operation data of the historical motors are obtained from the marking historical operation record, wherein the historical marking operation data comprise data corresponding to the torque and the rotating speed of the motors;
Step S103: acquiring current data and voltage data of a historical motor in each marking historical operation record;
step S104: calculating a characteristic motor operating efficiency of the history motor in the history device in each of the mark history operating records, wherein the characteristic motor operating efficiency of the history motor in the a-th mark history operating record ：
；
Wherein, Represented as an average of the torque of the historical motor in the a-th signature historical operating record; Represented as an average of the rotational speeds of the historic motors in the a-th signature history; representing the voltage of the historical motor in the a-th mark historical operating record; Representing an average value of the current of the history motor in the a-th mark history running record; the output constant is a preset characteristic motor; Marking the power factor of a historical motor in a historical operation record for the a;
step S105: calculating a characteristic motor operation efficiency threshold of the historical motor ：
；
Wherein, The total number of the marking historical operation records of the historical motor stored in the motor driving inversion system; The characteristic motor operation efficiency value of the historical motor in the i-th marked historical operation record is obtained;
Step S106: when the operation efficiency of a characteristic motor of a certain mark history operation record of the history motor is smaller than the operation efficiency threshold of the characteristic motor, the mark history operation record is recorded as the characteristic history motor operation record of the history motor;
In the steps, the characteristic motor operation efficiency of the historical motor in the historical operation record is marked, and the characteristic motor operation efficiency threshold value of the historical motor is obtained, so that the operation states of the historical motor in the historical operation record are obtained, the equipment states of motors with different actual motor types possibly under the same characteristic motor operation efficiency are far away, and the operation states of the historical motor with the same motor type can be accurately judged through the characteristic motor operation efficiency threshold value of the historical motor, so that the accuracy of analyzing the motor operation states is greatly improved in the follow-up process.
Further, step S200 includes:
Step S201: acquiring a plurality of characteristic historical motor operation records of a historical motor from a motor driving inversion system, and acquiring characteristic motor operation parameter data from the characteristic historical motor operation records in the motor driving inversion system, wherein the characteristic motor operation parameter data comprises data corresponding to each motor operation parameter of the historical motor;
step S202: acquiring characteristic motor operation comparison data of a preset historical motor from a motor driving inversion system, wherein the characteristic motor operation comparison data comprises characteristic operation parameter thresholds of various motor operation parameters of the preset historical motor in the motor driving inversion system;
Step S203: the method comprises the specific process of evaluating the influence degree of the operation state of a historical motor in historical equipment by different motor operation parameters, wherein the specific process of evaluating the influence degree of the operation state of the historical motor by the operation parameter of a c-th motor is that the maximum value of the operation parameter of the c-th motor is obtained from a plurality of characteristic historical motor operation records;
Step S204: when the maximum value of the c-th motor operation parameter in a certain characteristic historical motor operation record is smaller than the characteristic operation parameter threshold value of the c-th motor operation parameter, marking the certain characteristic historical motor operation record as a target characteristic historical motor operation record of the c-th motor operation parameter;
Step S205: calculating the characteristic influence value of the operation parameter of the c-th motor ：
；
Wherein, The total number of the operation records of the characteristic historical motor in the historical motor; the total number of historical motor operation records is the target characteristic of the c-th motor operation parameter in the historical motor;
Step S206: and when the characteristic influence value of the operation parameter of the c-th motor is larger than a preset characteristic influence threshold, recording the operation parameter of the c-th motor as the operation parameter of the characteristic motor of the historical motor, acquiring and collecting the operation parameters of each characteristic motor of the historical motor, and obtaining the operation parameter data of the characteristic motor of the historical motor.
Further, step S300 includes:
Step S301: acquiring characteristic historical motor operation records of historical motors in the historical equipment, and recording the kth characteristic historical motor operation record as a marked characteristic historical motor operation record of a certain motor operation parameter when the maximum value of the certain motor operation parameter in the kth characteristic historical motor operation record in the historical motors is larger than the characteristic operation parameter threshold of the certain motor operation parameter;
Step S302: analyzing the degree of interaction between different motor operation parameters in the historical motor, wherein the degree of influence of the e-th motor operation parameter in the historical motor on the f-th motor operation parameter is analyzed, and the f-th motor operation parameter is the characteristic motor operation parameter of the historical motor;
Step S303: calculating the characteristic parameter influence value of the e-th motor operation parameter on the f-th motor operation parameter ：
；
Wherein y represents the total number of the marked characteristic historical motor operation records of the e-th motor operation parameter; The maximum value of the motor operating parameter of the e-th item is expressed in the x-th marked characteristic historical motor operating record of the motor operating parameter of the e-th item; An average value expressed as a maximum value of the motor operation parameter of the e-th item in the signature history motor operation record; an average of maximum values in each signature characteristic history motor operation record of the motor operation parameter of item e, expressed as the motor operation parameter of item f; the maximum value of the f motor operation parameter in the x-th mark characteristic historical motor operation record is expressed;
Step S304: when the characteristic parameter influence value of the e-th motor operation parameter on the f-th motor operation parameter is larger than a preset characteristic parameter influence threshold, judging that the e-th motor operation parameter has positive influence on the parameter change of the f-th motor operation parameter, and recording the f-th motor operation parameter as a target influence motor operation parameter of the e-th motor operation parameter;
step S305: and acquiring target influence motor operation parameters of a plurality of operation parameters of the historical motor, and collecting to obtain target influence data of the historical motor.
Further, step S400 includes:
Step S401: using a motor driving inversion system to monitor the motor running process of the motor in the equipment in the current period and obtain the target influence data of the historical motor of the motor model of the historical motor in the current period;
Step S402: when the d-th motor operation parameter of the motor in the historical equipment in the current period is larger than a preset parameter threshold, acquiring target influence motor operation parameters of the d-th motor operation parameter, respectively carrying out key monitoring on the d-th motor operation parameter and the target influence motor operation parameter of the d-th motor operation parameter, and when the total item number of the motor operation parameters which are subjected to key monitoring in the motor of the equipment in the current period is larger than the preset total item number threshold, sending a motor overhaul prompt to the equipment user in the current period in the motor driving inversion system.
In order to better realize the method, an intelligent detection system is also provided, and comprises an operation state analysis module, a characteristic motor operation parameter data module, a target influence data module and an intelligent detection module;
The operation state analysis module is used for analyzing the operation state of the historical motor in the historical equipment to obtain a characteristic historical motor operation record;
The characteristic motor operation parameter data module is used for evaluating the influence degree of the operation state of the historical motor on the operation parameters of the motor to obtain characteristic motor operation parameter data;
the target influence data module is used for analyzing the mutual influence degree between the operation parameters of different motors in the historical motor to obtain target influence data;
The intelligent detection module is used for carrying out data monitoring on the reverse driving process of the motor in the equipment in the current period, carrying out real-time evaluation on the running state of the motor in the current period by combining target influence data, and carrying out intelligent detection on the motor in the motor driving inversion system.
Further, the running state analysis module comprises a characteristic history motor running recording unit;
The characteristic historical motor operation record unit is used for acquiring the historical motor operation record of the historical motor from the motor driving inversion system, acquiring the historical marking motor operation data from the marking historical operation record, and analyzing the operation state of the historical motor in the historical equipment to obtain the characteristic historical motor operation record.
Further, the characteristic motor operation parameter data module comprises a characteristic influence value unit and a characteristic motor operation parameter data unit;
The characteristic influence value unit is used for evaluating the influence degree of the operation state of the historical motor in the historical equipment by different motor operation parameters and calculating the characteristic influence value of each motor operation parameter of the historical motor;
and the characteristic motor operation parameter data unit is used for acquiring and collecting the operation parameters of each characteristic motor of the historical motor to obtain the characteristic motor operation parameter data of the historical motor.
Further, the target influence data module comprises a characteristic parameter influence value unit and a target influence data unit;
the characteristic parameter influence value unit is used for calculating characteristic parameter influence values among all motor operation parameters in the historical motor;
And the target influence data unit is used for acquiring and collecting the target influence motor operation parameters of a plurality of operation parameters of the historical motor to obtain target influence data of the historical motor.
Further, the intelligent detection module comprises an intelligent detection unit;
The intelligent detection unit is used for carrying out data monitoring on the motor operation process of the motor in the equipment in the current period, carrying out key detection on the motor operation parameters in the motor based on target influence data of the motor, and sending a motor overhaul prompt to a user of the equipment in the current period in the motor driving inversion system when the total number of the key monitored motor operation parameters in the motor of the equipment in the current period is larger than a preset total number threshold value.
Compared with the prior art, the invention has the following beneficial effects: the invention realizes intelligent detection of the motor running state of the motor in the motor driving inversion system, and obtains the influence condition of one motor running parameter in the motor on the other motor running parameter by analyzing the history running record of the motor, so that the analysis of the motor running state is more reasonable and scientific, the motor driving inversion system can intelligently regulate and control the motor according to the actual working condition, optimize the motor running parameter, improve the working efficiency of the motor, discover and process the abnormal condition of the motor during running in time, prolong the service life of the motor and the system, and reduce the maintenance time of motor faults in equipment.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1is a flow chart of a method of the present invention for an intelligent detection system and method for a motor driven inverter system;
fig. 2 is a schematic block diagram of an intelligent detection system and method applied to a motor-driven inverter system according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-2, the present invention provides the following technical solutions: an intelligent detection method applied to a motor-driven inverter system, the method comprising:
Step S100: acquiring a marking historical operation record of a historical motor from a motor driving inversion system, acquiring historical marking motor operation data from the marking historical operation record, and analyzing the operation state of the historical motor in the historical equipment to obtain a characteristic historical motor operation record;
Wherein, step S100 includes:
Step S101: setting a characteristic unit time length, and collecting the data of the historical motors in the monitored historical equipment at intervals of the unit time length in a historical period to obtain a historical operation record of the historical motors in the historical equipment;
Step S102: each historical operation record of a plurality of historical motors of the same motor type of the historical motors is obtained from the motor-driven inversion system and used as a marking historical operation record of the historical motors, each marking historical operation record of the historical motors is ordered according to the sequence according to the time point when the historical operation record is obtained by the motor-driven inversion system, and historical marking motor operation data of the historical motors are obtained from the marking historical operation record, wherein the historical marking operation data comprise data corresponding to the torque and the rotating speed of the motors;
Step S103: acquiring current data and voltage data of a historical motor in each marking historical operation record;
step S104: calculating a characteristic motor operating efficiency of the history motor in the history device in each of the mark history operating records, wherein the characteristic motor operating efficiency of the history motor in the a-th mark history operating record ：
；
Wherein, Represented as an average of the torque of the historical motor in the a-th signature historical operating record; shown as an average of the rotational speeds of the historic motors in the a-th signature history; representing the voltage of the historical motor in the a-th mark historical operating record; Representing an average value of the current of the history motor in the a-th mark history running record; the output constant is a preset characteristic motor; Marking the power factor of a historical motor in a historical operation record for the a;
step S105: calculating a characteristic motor operation efficiency threshold of the historical motor ：
；
Wherein, The total number of the marking historical operation records of the historical motor stored in the motor driving inversion system; The characteristic motor operation efficiency value of the historical motor in the i-th marked historical operation record is obtained;
for example, the total number of signature historic operating records of a historic motor stored in a motor driven inverter system Is 2; characteristic motor operation efficiency values for historical motors in the 1 st signature historical operating record0.80; Characteristic motor operation efficiency values for historical motors in the 2 nd signature historical operating record0.60; Calculating a characteristic motor operation efficiency threshold of the historical motor；
Step S106: when the operation efficiency of a characteristic motor of a certain mark history operation record of the history motor is smaller than the operation efficiency threshold of the characteristic motor, the mark history operation record is recorded as the characteristic history motor operation record of the history motor;
Step S200: acquiring a characteristic historical motor operation record of a motor driving inversion system, acquiring characteristic motor operation parameter data from the characteristic historical motor operation data record, and evaluating the influence degree of the operation state of the historical motor on the motor operation parameters to obtain the characteristic motor operation parameter data;
wherein, step S200 includes:
Step S201: acquiring a plurality of characteristic historical motor operation records of a historical motor from a motor driving inversion system, and acquiring characteristic motor operation parameter data from the characteristic historical motor operation records in the motor driving inversion system, wherein the characteristic motor operation parameter data comprises data corresponding to each motor operation parameter of the historical motor;
For example, the motor operating parameters include motor temperature, motor load, etc.;
step S202: acquiring characteristic motor operation comparison data of a preset historical motor from a motor driving inversion system, wherein the characteristic motor operation comparison data comprises characteristic operation parameter thresholds of various motor operation parameters of the preset historical motor in the motor driving inversion system;
Step S203: the method comprises the specific process of evaluating the influence degree of the operation state of a historical motor in historical equipment by different motor operation parameters, wherein the specific process of evaluating the influence degree of the operation state of the historical motor by the operation parameter of a c-th motor is that the maximum value of the operation parameter of the c-th motor is obtained from a plurality of characteristic historical motor operation records;
Step S204: when the maximum value of the c-th motor operation parameter in a certain characteristic historical motor operation record is smaller than the characteristic operation parameter threshold value of the c-th motor operation parameter, marking the certain characteristic historical motor operation record as a target characteristic historical motor operation record of the c-th motor operation parameter;
Step S205: calculating the characteristic influence value of the operation parameter of the c-th motor ：
；
Wherein, The total number of the operation records of the characteristic historical motor in the historical motor; the total number of historical motor operation records is the target characteristic of the c-th motor operation parameter in the historical motor;
for example, the total number of characteristic historical motor operation records in the historical motor 100; Target feature of the 2 nd motor operation parameter in the history motor total number of history motor operation records40; Calculating characteristic influence value of 2 nd motor operation parameter of historical motor；
Step S206: when the characteristic influence value of the operation parameter of the c-th motor is larger than a preset characteristic influence threshold, the operation parameter of the c-th motor is recorded as the operation parameter of the characteristic motor of the history motor, and all the operation parameters of the characteristic motor of the history motor are acquired and collected to obtain the operation parameter data of the characteristic motor of the history motor;
Step S300: acquiring a characteristic historical motor operation record of a historical motor, and analyzing the degree of interaction among different motor operation parameters in the historical motor by combining characteristic motor operation parameter data to obtain target influence data;
Wherein, step S300 includes:
Step S301: acquiring characteristic historical motor operation records of historical motors in the historical equipment, and recording the kth characteristic historical motor operation record as a marked characteristic historical motor operation record of a certain motor operation parameter when the maximum value of the certain motor operation parameter in the kth characteristic historical motor operation record in the historical motors is larger than the characteristic operation parameter threshold of the certain motor operation parameter;
Step S302: analyzing the degree of interaction between different motor operation parameters in the historical motor, wherein the degree of influence of the e-th motor operation parameter in the historical motor on the f-th motor operation parameter is analyzed, and the f-th motor operation parameter is the characteristic motor operation parameter of the historical motor;
Step S303: calculating the characteristic parameter influence value of the e-th motor operation parameter on the f-th motor operation parameter ：
；
Wherein y represents the total number of the marked characteristic historical motor operation records of the e-th motor operation parameter; The maximum value of the motor operating parameter of the e-th item is expressed in the x-th marked characteristic historical motor operating record of the motor operating parameter of the e-th item; An average value expressed as a maximum value of the motor operation parameter of the e-th item in the signature history motor operation record; an average of maximum values in each signature characteristic history motor operation record of the motor operation parameter of item e, expressed as the motor operation parameter of item f; the maximum value of the f motor operation parameter in the x-th mark characteristic historical motor operation record is expressed;
Step S304: when the characteristic parameter influence value of the e-th motor operation parameter on the f-th motor operation parameter is larger than a preset characteristic parameter influence threshold, judging that the e-th motor operation parameter has positive influence on the parameter change of the f-th motor operation parameter, and recording the f-th motor operation parameter as a target influence motor operation parameter of the e-th motor operation parameter;
Step S305: acquiring target influence motor operation parameters of a plurality of operation parameters of the historical motor, and collecting the target influence motor operation parameters to obtain target influence data of the historical motor;
Step S400: based on the motor driving inversion system, carrying out data monitoring on a motor reverse driving process in equipment in a current period, carrying out real-time evaluation on the running state of the motor in the current period by combining target influence data, and carrying out intelligent detection on the motor in the motor driving inversion system;
Wherein, step S400 includes:
Step S401: using a motor driving inversion system to monitor the motor running process of the motor in the equipment in the current period and obtain the target influence data of the historical motor of the motor model of the historical motor in the current period;
Step S402: when the d-th motor operation parameter of the motor in the historical equipment in the current period is larger than a preset parameter threshold, acquiring target influence motor operation parameters of the d-th motor operation parameter, respectively carrying out key monitoring on the d-th motor operation parameter and the target influence motor operation parameter of the d-th motor operation parameter, and when the total item number of the motor operation parameters which are subjected to key monitoring in the motor of the equipment in the current period is larger than the preset total item number threshold, sending a motor overhaul prompt to the equipment user in the current period in the motor driving inversion system.
In order to better realize the method, an intelligent detection system is also provided, and comprises an operation state analysis module, a characteristic motor operation parameter data module, a target influence data module and an intelligent detection module;
The operation state analysis module is used for analyzing the operation state of the historical motor in the historical equipment to obtain a characteristic historical motor operation record;
The characteristic motor operation parameter data module is used for evaluating the influence degree of the operation state of the historical motor on the operation parameters of the motor to obtain characteristic motor operation parameter data;
the target influence data module is used for analyzing the mutual influence degree between the operation parameters of different motors in the historical motor to obtain target influence data;
The intelligent detection module is used for carrying out data monitoring on the reverse driving process of the motor in the equipment in the current period, carrying out real-time evaluation on the running state of the motor in the current period by combining target influence data, and carrying out intelligent detection on the motor in the motor driving inversion system;
the running state analysis module comprises a characteristic history motor running recording unit;
The characteristic historical motor operation record unit is used for acquiring a historical motor operation record of the historical motor from the motor driving inversion system, acquiring historical marking motor operation data from the marking historical operation record, and analyzing the operation state of the historical motor in the historical equipment to obtain a characteristic historical motor operation record;
the characteristic motor operation parameter data module comprises a characteristic influence value unit and a characteristic motor operation parameter data unit;
The characteristic influence value unit is used for evaluating the influence degree of the operation state of the historical motor in the historical equipment by different motor operation parameters and calculating the characteristic influence value of each motor operation parameter of the historical motor;
the characteristic motor operation parameter data unit is used for acquiring and collecting all characteristic motor operation parameters of the historical motor to obtain characteristic motor operation parameter data of the historical motor;
the target influence data module comprises a characteristic parameter influence value unit and a target influence data unit;
the characteristic parameter influence value unit is used for calculating characteristic parameter influence values among all motor operation parameters in the historical motor;
The target influence data unit is used for acquiring and collecting target influence motor operation parameters of a plurality of operation parameters of the historical motor to obtain target influence data of the historical motor;
the intelligent detection module comprises an intelligent detection unit;
The intelligent detection unit is used for carrying out data monitoring on the motor operation process of the motor in the equipment in the current period, carrying out key detection on the motor operation parameters in the motor based on target influence data of the motor, and sending a motor overhaul prompt to a user of the equipment in the current period in the motor driving inversion system when the total number of the key monitored motor operation parameters in the motor of the equipment in the current period is larger than a preset total number threshold value.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
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