阅读说明：本技术 评估噪声环境下硬盘性能的方法、装置、设备及可读介质 (Method, device and equipment for evaluating performance of hard disk in noise environment and readable medium ) 是由 陈强 王羽茜 于 2021-08-21 设计创作，主要内容包括：本发明提供了一种评估噪声环境下硬盘性能的方法、装置、设备及可读介质,该方法包括：建立硬盘不同读写性能的基准曲线；将硬盘实测噪声信号进行PSD转换以得到硬盘噪声曲线；将硬盘噪声曲线与基准曲线进行比较并基于预设计算公式对硬盘性能进行测试。通过使用本发明的方案,能够实现根据噪声预测硬盘读写性能,能够对降噪优化提供精确有效的指导,能够提升产品竞争力。(The invention provides a method, a device, equipment and a readable medium for evaluating the performance of a hard disk in a noise environment, wherein the method comprises the following steps: establishing reference curves of different read-write performances of the hard disk; carrying out PSD conversion on the actually measured noise signal of the hard disk to obtain a hard disk noise curve; and comparing the hard disk noise curve with the reference curve and testing the performance of the hard disk based on a preset calculation formula. By using the scheme of the invention, the read-write performance of the hard disk can be predicted according to the noise, accurate and effective guidance can be provided for noise reduction optimization, and the product competitiveness can be improved.)

1. A method for evaluating the performance of a hard disk in a noisy environment, comprising the steps of:

establishing reference curves of different read-write performances of the hard disk;

carrying out PSD conversion on the actually measured noise signal of the hard disk to obtain a hard disk noise curve;

and comparing the hard disk noise curve with the reference curve and testing the performance of the hard disk based on a preset calculation formula.

2. The method of claim 1, wherein establishing the reference curves for different read-write performances of the hard disk comprises:

dividing preset frequency into a plurality of frequency intervals in an 1/9 octave mode in a preset frequency range;

emitting 1/9 octave single frequency band sound signals in each frequency interval through professional sound source equipment, and collecting IOPS values of the hard disk;

and establishing a reference curve based on each frequency interval and the obtained IOPS value.

3. The method of claim 2, wherein the predetermined frequency range is 2000HZ to 12000 HZ.

4. The method of claim 2, wherein emitting 1/9 octave single frequency band sound signals in each frequency interval by a professional sound source device, and collecting the IOPS value of the hard disk comprises:

and adjusting the sound signal intensity within a preset sound signal intensity range by a preset sound pressure step length in each frequency interval, and acquiring the IOPS value of the hard disk under each signal intensity.

5. The method of claim 4, wherein the preset sound pressure step size is 3 db.

6. The method of claim 4, wherein the preset sound signal intensity range is 60db to 120 db.

7. The method according to claim 1, wherein the preset calculation formula is:

wherein, Y_IOPSIs the loss value of the hard disk IOPS, k is a direct proportionality coefficient, n is the number of wave peaks of the actual noise signal exceeding the reference curve on the sensitive frequency band, alpha_iRepresents the calculated weight, Δ X, corresponding to the most severe reference curve_SPLIs the difference in sound pressure level at which the noise exceeds the harshest reference curve.

8. An apparatus for evaluating performance of a hard disk in a noisy environment, the apparatus comprising:

the system comprises an establishing module, a reading and writing module and a reading and writing module, wherein the establishing module is configured to establish reference curves of different reading and writing performances of the hard disk;

the conversion module is configured to perform PSD conversion on the actually measured hard disk noise signal to obtain a hard disk noise curve;

and the test module is configured to compare the hard disk noise curve with the reference curve and test the performance of the hard disk based on a preset calculation formula.

9. A computer device, comprising:

at least one processor; and

a memory storing computer instructions executable on the processor, the instructions when executed by the processor implementing the steps of the method of any one of claims 1 to 7.

10. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 7.

Technical Field

The field relates to the field of computers, and more particularly to a method, apparatus, device and readable medium for evaluating the performance of a hard disk in a noisy environment.

Background

Mechanical hard disks are used as high-speed mass storage devices and are widely applied to various servers, data centers and other devices. Meanwhile, due to the heat dissipation challenge brought by high power consumption, various high-speed fans are widely applied, so that the hard disk is in a high-noise environment for a long time. Experimental data show that high noise greatly affects the read-write performance of the mechanical hard disk, and even in a fixed device, the noise becomes one of the most important factors affecting the read-write performance and the service life of the mechanical hard disk. However, in recent years, as the mechanical hard disk is more precise and the magnetic track is narrower, the influence of noise on the read-write performance of the hard disk is more obvious, and the influence of noise on the performance of the hard disk is increasingly prominent in recent years and becomes one of the main problems that the design and the use of the current mechanical hard disk cannot be avoided. Meanwhile, the research on the technology of the correlation between the noise and the performance of the hard disk is just started, and the research on the correlation between the noise and the performance of the hard disk is not carried out. Therefore, the establishment of the research on the correlation between the noise and the performance of the hard disk is of great significance to the noise reduction optimization of the hard disk.

In actual technical practice, a simple noise reduction design is performed only on the basis of the principle that noise affects the read-write performance of a hard disk, and the purpose is to reduce the overall noise sound pressure level. However, the implementation of such simple noise reduction often requires a large increase in manufacturing and installation costs, and also causes a great waste of resources.

Disclosure of Invention

In view of this, embodiments of the present invention provide a method, an apparatus, a device, and a readable medium for evaluating performance of a hard disk in a noise environment, and by using the technical solution of the present invention, it is possible to predict read/write performance of a hard disk according to noise, provide accurate and effective guidance for noise reduction optimization, and improve product competitiveness.

In view of the above object, an aspect of the embodiments of the present invention provides a method for evaluating performance of a hard disk in a noisy environment, including the steps of:

establishing reference curves of different read-write performances of the hard disk;

performing PSD (Power Spectral Density) conversion on the hard disk actually-measured noise signal to obtain a hard disk noise curve;

and comparing the hard disk noise curve with the reference curve and testing the performance of the hard disk based on a preset calculation formula.

According to an embodiment of the present invention, the establishing of the reference curve of different read-write performances of the hard disk comprises:

dividing preset frequency into a plurality of frequency intervals in an 1/9 octave mode in a preset frequency range;

emitting 1/9 octave single frequency band sound signals in each frequency interval through professional sound source equipment, and collecting IOPS values of the hard disk;

and establishing a reference curve based on each frequency interval and the obtained IOPS value.

According to an embodiment of the present invention, the predetermined frequency range is 2000HZ to 12000 HZ.

According to one embodiment of the invention, emitting 1/9 octave single frequency band sound signals in each frequency interval by professional sound source equipment, and collecting the IOPS value of the hard disk comprises the following steps:

and adjusting the sound signal intensity within a preset sound signal intensity range by a preset sound pressure step length in each frequency interval, and acquiring the IOPS value of the hard disk under each signal intensity.

According to one embodiment of the invention, the preset sound pressure step is 3 db.

According to an embodiment of the present invention, the preset sound signal intensity range is 60db to 120 db.

According to an embodiment of the present invention, the preset calculation formula is:

wherein, Y_IOPSIs the loss value of the hard disk IOPS, k is a direct proportionality coefficient, n is the number of wave peaks of the actual noise signal exceeding the reference curve on the sensitive frequency band, alpha_iRepresents the calculated weight, Δ X, corresponding to the most severe reference curve_SPLIs the difference in sound pressure level at which the noise exceeds the harshest reference curve.

In another aspect of the embodiments of the present invention, there is also provided an apparatus for evaluating performance of a hard disk in a noisy environment, the apparatus including:

the establishing module is configured to establish reference curves of different read-write performances of the hard disk;

the conversion module is configured to perform PSD conversion on the actually measured hard disk noise signal to obtain a hard disk noise curve;

and the test module is configured to compare the hard disk noise curve with the reference curve and test the performance of the hard disk based on a preset calculation formula.

According to an embodiment of the invention, the setup module is further configured to:

dividing preset frequency into a plurality of frequency intervals in an 1/9 octave mode in a preset frequency range;

emitting 1/9 octave single frequency band sound signals in each frequency interval through professional sound source equipment, and collecting IOPS values of the hard disk;

and establishing a reference curve based on each frequency interval and the obtained IOPS value.

According to one embodiment of the present invention, the predetermined frequency range is 2000HZ to 12000 HZ.

According to an embodiment of the invention, the establishing module is further configured to:

and adjusting the sound signal intensity within a preset sound signal intensity range by a preset sound pressure step length in each frequency interval, and acquiring the IOPS value of the hard disk under each signal intensity.

According to one embodiment of the invention, the preset sound pressure step is 3 db.

According to an embodiment of the present invention, the preset sound signal intensity range is 60db to 120 db.

According to an embodiment of the present invention, the preset calculation formula is:

wherein, Y_IOPSIs the loss value of the hard disk IOPS, k is a direct proportionality coefficient, n is the number of wave peaks of the actual noise signal exceeding the reference curve on the sensitive frequency band, alpha_iRepresents the calculated weight, Δ X, corresponding to the most severe reference curve_SPLIs the difference in sound pressure level at which the noise exceeds the harshest reference curve.

In another aspect of an embodiment of the present invention, there is also provided a computer apparatus including:

at least one processor; and

a memory storing computer instructions executable on the processor, the instructions when executed by the processor implementing the steps of any of the methods described above.

In another aspect of the embodiments of the present invention, there is also provided a computer-readable storage medium storing a computer program, which when executed by a processor implements the steps of any one of the above-mentioned methods.

The invention has the following beneficial technical effects: the method for evaluating the performance of the hard disk in the noise environment provided by the embodiment of the invention comprises the steps of establishing reference curves of different read-write performances of the hard disk; carrying out PSD conversion on the actually measured noise signal of the hard disk to obtain a hard disk noise curve; the technical scheme of comparing the hard disk noise curve with the reference curve and testing the performance of the hard disk based on the preset calculation formula can predict the read-write performance of the hard disk according to the noise, provide accurate and effective guidance for noise reduction optimization, and improve the product competitiveness.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other embodiments can be obtained by using the drawings without creative efforts.

FIG. 1 is a schematic flow chart diagram of a method of evaluating hard disk performance in a noisy environment in accordance with one embodiment of the present invention;

FIG. 2 is a schematic illustration of a reference curve according to one embodiment of the present invention;

FIG. 3 is a schematic diagram of a comparison of an actual noise curve to a reference curve according to one embodiment of the present invention;

FIG. 4 is a diagram illustrating an apparatus for evaluating the performance of a hard disk in a noisy environment according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a computer device according to one embodiment of the present invention;

fig. 6 is a schematic diagram of a computer-readable storage medium according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the following embodiments of the present invention are described in further detail with reference to the accompanying drawings.

In view of the above objects, a first aspect of embodiments of the present invention proposes an embodiment of a method for evaluating performance of a hard disk in a noisy environment. Fig. 1 shows a schematic flow diagram of the method.

As shown in fig. 1, the method may include the steps of:

s1, establishing reference curves of different read-write performances of the hard disk.

Dividing preset frequency into a plurality of frequency intervals in a frequency range of 2000HZ to 12000HZ in an 1/9 octave mode, emitting a sound signal of 1/9 octave single frequency band in each frequency interval through professional sound source equipment, gradually increasing the signal intensity in a range of 60db to 120db of signal intensity by a sound pressure increasing step size of 3db, collecting IOPS values of the hard disk under the conditions, and finally establishing a reference curve based on each frequency interval and the obtained IOPS values, wherein the reference curve is shown in figure 2.

And S2, carrying out PSD conversion on the hard disk measured noise signal to obtain a hard disk noise curve.

Under any environment, the noise signal of the hard disk to be tested is actually measured, and PSD conversion is carried out on the measured noise signal in any mode in the prior art to obtain a noise curve similar to the reference curve.

S3, comparing the hard disk noise curve with the reference curve and testing the hard disk performance based on the preset calculation formula.

Comparing the hard disk noise curve with the reference curve (shown in fig. 3) can obtain the number of peaks of the actual noise signal exceeding the reference curve on the sensitive frequency band, and then according to the formulaThe loss value of the hard disk IOPS can be calculated, the performance of the hard disk can be evaluated according to the loss value,wherein Y is_IOPSIs the loss value of the hard disk IOPS, k is a direct proportionality coefficient, n is the number of wave peaks of the actual noise signal exceeding the reference curve on the sensitive frequency band, alpha_iRepresents the calculated weight, Δ X, corresponding to the most severe reference curve_SPLIs the difference in sound pressure level at which the noise exceeds the harshest reference curve.

According to the technical scheme, the hard disk read-write performance can be predicted according to the noise, accurate and effective guidance can be provided for noise reduction optimization, and the product competitiveness can be improved.

In a preferred embodiment of the present invention, the establishing of the reference curve of different read-write performances of the hard disk includes:

dividing preset frequency into a plurality of frequency intervals in an 1/9 octave mode in a preset frequency range;

emitting 1/9 octave single frequency band sound signals in each frequency interval through professional sound source equipment, and collecting IOPS values of the hard disk;

and establishing a reference curve based on each frequency interval and the obtained IOPS value.

In a preferred embodiment of the present invention, the predetermined frequency range is 2000HZ to 12000 HZ.

In a preferred embodiment of the present invention, emitting 1/9 octave single frequency band sound signals in each frequency interval by a professional sound source device, and collecting the IOPS value of the hard disk comprises:

and adjusting the sound signal intensity within a preset sound signal intensity range by a preset sound pressure step length in each frequency interval, and acquiring the IOPS value of the hard disk under each signal intensity.

In a preferred embodiment of the invention, the preset sound pressure step is 3 db.

In a preferred embodiment of the present invention, the preset sound signal intensity range is 60db to 120 db. For example, the IOPS of the hard disk is tested at 60db sound signal strength in the first frequency interval, then the IOPS of the hard disk is tested at 63db sound signal strength until the IOPS of the hard disk is tested at 120db sound signal strength, and then the test of the second frequency interval is started until all the frequency intervals are tested.

In a preferred embodiment of the present invention, the preset calculation formula is:

wherein, Y_IOPSIs the loss value of the hard disk IOPS, k is a direct proportionality coefficient, n is the number of wave peaks of the actual noise signal exceeding the reference curve on the sensitive frequency band, alpha_iRepresents the calculated weight, Δ X, corresponding to the most severe reference curve_SPLIs the difference in sound pressure level at which the noise exceeds the harshest reference curve.

According to the technical scheme, the hard disk read-write performance can be predicted according to the noise, accurate and effective guidance can be provided for noise reduction optimization, and the product competitiveness can be improved.

It should be noted that, as will be understood by those skilled in the art, all or part of the processes in the methods of the above embodiments may be implemented by instructing relevant hardware through a computer program, and the above programs may be stored in a computer-readable storage medium, and when executed, the programs may include the processes of the embodiments of the methods as described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like. The embodiments of the computer program may achieve the same or similar effects as any of the above-described method embodiments.

Furthermore, the method disclosed according to an embodiment of the present invention may also be implemented as a computer program executed by a CPU, and the computer program may be stored in a computer-readable storage medium. The computer program, when executed by the CPU, performs the above-described functions defined in the method disclosed in the embodiments of the present invention.

In view of the above object, according to a second aspect of the embodiments of the present invention, there is provided an apparatus for evaluating performance of a hard disk in a noisy environment, as shown in fig. 4, the apparatus 200 includes:

the establishing module 201, wherein the establishing module 201 is configured to establish reference curves of different read-write performances of the hard disk;

the conversion module 202, the conversion module 202 is configured to perform PSD conversion on the hard disk actual measurement noise signal to obtain a hard disk noise curve;

and the testing module 203, wherein the testing module 203 is configured to compare the hard disk noise curve with a reference curve and test the performance of the hard disk based on a preset calculation formula.

According to an embodiment of the invention, the setup module 201 is further configured to:

dividing preset frequency into a plurality of frequency intervals in an 1/9 octave mode in a preset frequency range;

emitting 1/9 octave single frequency band sound signals in each frequency interval through professional sound source equipment, and collecting IOPS values of the hard disk;

and establishing a reference curve based on each frequency interval and the obtained IOPS value.

According to one embodiment of the present invention, the predetermined frequency range is 2000HZ to 12000 HZ.

According to an embodiment of the present invention, the establishing module 201 is further configured to:

and adjusting the sound signal intensity within a preset sound signal intensity range by a preset sound pressure step length in each frequency interval, and acquiring the IOPS value of the hard disk under each signal intensity.

According to one embodiment of the invention, the preset sound pressure step is 3 db.

According to an embodiment of the present invention, the preset sound signal intensity range is 60db to 120 db.

According to an embodiment of the present invention, the preset calculation formula is:

wherein, Y_IOPSIs the loss value of the hard disk IOPS, k is a direct proportionality coefficient, n is the number of wave peaks of the actual noise signal exceeding the reference curve on the sensitive frequency band, alpha_iRepresents the calculated weight, Δ X, corresponding to the most severe reference curve_SPLIs the difference in sound pressure level at which the noise exceeds the harshest reference curve.

In view of the above object, a third aspect of the embodiments of the present invention provides a computer device. Fig. 5 is a schematic diagram of an embodiment of a computer device provided by the present invention. As shown in fig. 5, an embodiment of the present invention includes the following means: at least one processor S21; and a memory S22, the memory S22 storing computer instructions S23 executable on the processor, the instructions when executed by the processor implementing the method of:

establishing reference curves of different read-write performances of the hard disk;

carrying out PSD conversion on the actually measured noise signal of the hard disk to obtain a hard disk noise curve;

and comparing the hard disk noise curve with the reference curve and testing the performance of the hard disk based on a preset calculation formula.

In a preferred embodiment of the present invention, the establishing of the reference curve of different read-write performances of the hard disk includes:

dividing preset frequency into a plurality of frequency intervals in an 1/9 octave mode in a preset frequency range;

emitting 1/9 octave single frequency band sound signals in each frequency interval through professional sound source equipment, and collecting IOPS values of the hard disk;

and establishing a reference curve based on each frequency interval and the obtained IOPS value.

In a preferred embodiment of the present invention, the predetermined frequency range is 2000HZ to 12000 HZ.

In a preferred embodiment of the present invention, emitting 1/9 octave single frequency band sound signals in each frequency interval by a professional sound source device, and collecting the IOPS value of the hard disk comprises:

and adjusting the sound signal intensity within a preset sound signal intensity range by a preset sound pressure step length in each frequency interval, and acquiring the IOPS value of the hard disk under each signal intensity.

In a preferred embodiment of the invention, the preset sound pressure step is 3 db.

In a preferred embodiment of the present invention, the preset sound signal intensity range is 60db to 120 db.

In a preferred embodiment of the present invention, the preset calculation formula is:

wherein, Y_IOPSIs the loss value of the hard disk IOPS, k is a direct proportionality coefficient, n is the number of wave peaks of the actual noise signal exceeding the reference curve on the sensitive frequency band, alpha_iRepresents the calculated weight, Δ X, corresponding to the most severe reference curve_SPLIs the difference in sound pressure level at which the noise exceeds the harshest reference curve.

In view of the above object, a fourth aspect of the embodiments of the present invention proposes a computer-readable storage medium. FIG. 6 is a schematic diagram illustrating an embodiment of a computer-readable storage medium provided by the present invention. As shown in fig. 6, the computer readable storage medium S31 stores a computer program S32 that when executed by a processor performs the method of:

establishing reference curves of different read-write performances of the hard disk;

carrying out PSD conversion on the actually measured noise signal of the hard disk to obtain a hard disk noise curve;

and comparing the hard disk noise curve with the reference curve and testing the performance of the hard disk based on a preset calculation formula.

In a preferred embodiment of the present invention, the establishing of the reference curve of different read-write performances of the hard disk includes:

dividing preset frequency into a plurality of frequency intervals in an 1/9 octave mode in a preset frequency range;

emitting 1/9 octave single frequency band sound signals in each frequency interval through professional sound source equipment, and collecting IOPS values of the hard disk;

and establishing a reference curve based on each frequency interval and the obtained IOPS value.

In a preferred embodiment of the present invention, the predetermined frequency range is 2000HZ to 12000 HZ.

In a preferred embodiment of the present invention, emitting 1/9 octave single frequency band sound signals in each frequency interval by a professional sound source device, and collecting the IOPS value of the hard disk comprises:

and adjusting the sound signal intensity within a preset sound signal intensity range by a preset sound pressure step length in each frequency interval, and acquiring the IOPS value of the hard disk under each signal intensity.

In a preferred embodiment of the invention, the preset sound pressure step is 3 db.

In a preferred embodiment of the present invention, the preset sound signal intensity range is 60db to 120 db.

In a preferred embodiment of the present invention, the preset calculation formula is:

wherein, Y_IOPSIs the loss value of the hard disk IOPS, k is a direct proportionality coefficient, n is the number of wave peaks of the actual noise signal exceeding the reference curve on the sensitive frequency band, alpha_iRepresents the calculated weight, Δ X, corresponding to the most severe reference curve_SPLIs the difference in sound pressure level at which the noise exceeds the harshest reference curve.

Furthermore, the methods disclosed according to embodiments of the present invention may also be implemented as a computer program executed by a processor, which may be stored in a computer-readable storage medium. Which when executed by a processor performs the above-described functions defined in the methods disclosed in embodiments of the invention.

Further, the above method steps and system elements may also be implemented using a controller and a computer readable storage medium for storing a computer program for causing the controller to implement the functions of the above steps or elements.

Those of skill would further appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the disclosure herein may be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as software or hardware depends upon the particular application and design constraints imposed on the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the disclosed embodiments of the present invention.

In one or more exemplary designs, the functions may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer. By way of example, and not limitation, such computer-readable media can comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor. Also, any connection is properly termed a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), or wireless technologies such as infrared, radio, and microwave, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of medium. Disk and disc, as used herein, includes Compact Disc (CD), laser disc, optical disc, Digital Versatile Disc (DVD), floppy disk, blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above should also be included within the scope of computer-readable media.

The foregoing is an exemplary embodiment of the present disclosure, but it should be noted that various changes and modifications could be made herein without departing from the scope of the present disclosure as defined by the appended claims. The functions, steps and/or actions of the method claims in accordance with the disclosed embodiments described herein need not be performed in any particular order. Furthermore, although elements of the disclosed embodiments of the invention may be described or claimed in the singular, the plural is contemplated unless limitation to the singular is explicitly stated.

It should be understood that, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly supports the exception. It should also be understood that "and/or" as used herein is meant to include any and all possible combinations of one or more of the associated listed items.

The numbers of the embodiments disclosed in the embodiments of the present invention are merely for description, and do not represent the merits of the embodiments.

It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, and the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.

Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, of embodiments of the invention is limited to these examples; within the idea of an embodiment of the invention, also technical features in the above embodiment or in different embodiments may be combined and there are many other variations of the different aspects of the embodiments of the invention as described above, which are not provided in detail for the sake of brevity. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit and principles of the embodiments of the present invention are intended to be included within the scope of the embodiments of the present invention.