阅读说明：本技术 制冷设备、识别风机堵转的方法和装置 (Refrigeration equipment and method and device for identifying fan locked rotor ) 是由 石勇 吴国富 于 2019-09-30 设计创作，主要内容包括：本发明提出一种制冷设备、识别风机堵转的方法和装置,所述方法包括以下步骤：检测风机的当前转速,识别当前转速小于预设转速持续第一预设时长；获取风机的当前温度；识别当前温度小于预设温度,则所述风机存在冰堵风险；或者,识别当前温度大于或者等于预设温度,则确定制冷设备所产生的冰并非是造成风机发生堵转的因素。本发明的方法,可判定出风机是否存在冰堵风险。(The invention provides a refrigeration device, a method and a device for identifying fan stalling, wherein the method comprises the following steps: detecting the current rotating speed of the fan, and identifying that the current rotating speed is less than the preset rotating speed for a first preset time; acquiring the current temperature of the fan; recognizing that the current temperature is lower than a preset temperature, and then the fan has an ice blockage risk; or, recognizing that the current temperature is greater than or equal to the preset temperature, determining that the ice generated by the refrigeration equipment is not a factor causing the fan to be locked. The method can judge whether the air outlet machine has ice blockage risk or not.)

1. A method for identifying the locked rotor of a fan is characterized by comprising the following steps:

detecting the current rotating speed of the fan, and identifying that the current rotating speed is less than a preset rotating speed for a first preset time;

acquiring the current temperature of the fan;

recognizing that the current temperature is lower than a preset temperature, and determining that the fan has an ice blockage risk; alternatively, the first and second electrodes may be,

and recognizing that the current temperature is greater than or equal to the preset temperature, and determining that the ice generated by the refrigeration equipment is not a factor causing the fan to be locked.

2. The method of claim 1, wherein after identifying that the current temperature is less than a preset temperature and determining that the fan is at risk of ice blockage, the method further comprises:

controlling the refrigeration equipment to execute at least one defrosting program;

and identifying that the rotating speed of the fan is recovered to be normal, and determining that the ice generated by the refrigeration equipment is a factor causing the fan to generate the locked rotor.

3. The method of claim 2, wherein the controlling the refrigeration appliance to perform at least one defrost procedure comprises:

and acquiring the current temperature of the fan when the defrosting procedure is finished every time, detecting and recognizing that the current temperature is still less than the preset temperature, and controlling the refrigeration equipment to wait for a second preset time to execute the defrosting procedure again.

4. The method of claim 2, wherein before identifying that the rotational speed of the wind turbine is normal, further comprising:

and controlling the power supply unit to intermittently supply power to the fan according to a first duty ratio.

5. The method of claim 4, wherein after controlling the power supply unit to intermittently supply power to the fan at the first duty cycle, further comprising:

and identifying that the rotating speed of the fan is not recovered to be normal, and determining that the ice generated by the refrigeration equipment is not a factor causing the fan to be locked.

6. The method of claim 1 or 5, wherein the determining that the ice produced by the refrigeration equipment is not a factor causing a stall in the fan further comprises:

controlling a power supply unit to intermittently supply power to the fan according to a second duty ratio;

identifying that the rotating speed of the fan is recovered to be normal, and determining that the first type of foreign matters are factors causing the fan to be locked;

identifying that the rotating speed of the fan is not recovered to be normal, and determining that the second type of foreign matter is a factor causing the fan to generate locked rotor;

wherein the size or weight of the first type of foreign matter is less than the size or weight of the second type of foreign matter.

7. The method of claim 6, further comprising:

and carrying out intermittent power supply on the fan according to the preset time length or the preset times.

8. The utility model provides a device of discernment fan stalling which characterized in that includes:

the identification module is used for detecting the current rotating speed of the fan and identifying that the current rotating speed is less than a preset rotating speed for a first preset time;

the acquisition module is used for acquiring the current temperature of the fan;

and the determining module is used for identifying that the current temperature is less than a preset temperature, determining that the fan has an ice blockage risk, or identifying that the current temperature is greater than or equal to the preset temperature, and determining that the ice generated by the refrigeration equipment is not a factor causing the fan to generate the locked rotor.

9. A refrigeration apparatus, comprising: the device of claim 8 for identifying a blower stall.

10. An electronic device comprising a memory, a processor;

the processor executes a program corresponding to the executable program code by reading the executable program code stored in the memory, so as to implement the method for identifying the wind turbine stall according to any one of claims 1 to 7.

11. A computer-readable storage medium, in which a computer program is stored, which program, when being executed by a processor, is adapted to carry out the method of identifying a fan stall according to any one of claims 1 to 7.

Technical Field

The invention relates to the technical field of electric appliances, in particular to a method for identifying fan locked rotor, a device for identifying fan locked rotor and refrigeration equipment with the device.

Background

At present, a normal power supply signal is provided for a fan, and when the main control board detects that the rotating speed of the fan is lower than a threshold value or zero within a certain time, the fan is judged to be locked.

By adopting the control mode, although the risk of motor burnout caused by fan stalling can be avoided, whether the ice generated by the refrigeration equipment is the fan stalling factor or not can not be effectively identified.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.

Therefore, the first objective of the present invention is to provide a method for identifying blower stalling, which can effectively determine whether the blower has the risk of ice blockage.

The second purpose of the invention is to provide a device for identifying the locked rotor of the fan.

A third object of the invention is to propose a refrigeration device.

A fourth object of the invention is to propose an electronic device.

A fifth object of the present invention is to propose a computer-readable storage medium.

In order to achieve the above object, an embodiment of a first aspect of the present invention provides a method for identifying a blower locked rotor, including the following steps: detecting the current rotating speed of the fan, and identifying that the current rotating speed is less than a preset rotating speed for a first preset time; acquiring the current temperature of the fan; recognizing that the current temperature is lower than a preset temperature, and determining that the fan has an ice blockage risk; or, recognizing that the current temperature is greater than or equal to the preset temperature, determining that the ice generated by the refrigeration equipment is not a factor causing the fan to be locked.

According to the method for identifying the fan stalling, the current rotating speed of the fan is detected, when the current rotating speed is identified to be smaller than the preset rotating speed for a first preset time, the current temperature of the fan is obtained, if the current temperature is identified to be smaller than the preset temperature, the fan is determined to have the ice stalling risk, and if the current temperature is identified to be larger than or equal to the preset temperature, the ice generated by the refrigeration equipment is determined not to be a factor causing the fan stalling. Therefore, the method can effectively judge whether the fan has the risk of ice blockage.

In addition, the method for identifying the blower locked rotor provided by the embodiment of the invention can also have the following additional technical characteristics:

according to an embodiment of the present invention, after identifying that the current temperature is lower than a preset temperature and determining that the blower is at risk of ice blockage, the method further includes: controlling the refrigeration equipment to execute at least one defrosting program; and identifying that the rotating speed of the fan is recovered to be normal, and determining that the ice generated by the refrigeration equipment is a factor causing the fan to generate the locked rotor.

According to one embodiment of the invention, the controlling the refrigeration equipment to execute at least one defrosting procedure comprises: and acquiring the current temperature of the fan when the defrosting procedure is finished every time, detecting and recognizing that the current temperature is still less than the preset temperature, and controlling the refrigeration equipment to wait for a second preset time to execute the defrosting procedure again.

According to an embodiment of the present invention, before the identifying that the rotation speed of the fan is normal, the method further includes: and controlling the power supply unit to intermittently supply power to the fan according to a first duty ratio.

According to an embodiment of the present invention, after the controlling the power supply unit to intermittently supply power to the fan according to the first duty ratio, the method further includes: and identifying that the rotating speed of the fan is not recovered to be normal, and determining that the ice generated by the refrigeration equipment is not a factor causing the fan to be locked.

According to an embodiment of the present invention, after determining that the ice generated by the refrigeration equipment is not a factor causing the blower to be locked, the method further includes: controlling a power supply unit to intermittently supply power to the fan according to a second duty ratio; identifying that the rotating speed of the fan is recovered to be normal, and determining that the first type of foreign matters are factors causing the fan to be locked; identifying that the rotating speed of the fan is not recovered to be normal, and determining that the second type of foreign matter is a factor causing the fan to generate locked rotor; wherein the size or weight of the first type of foreign matter is less than the size or weight of the second type of foreign matter.

According to an embodiment of the present invention, the method for identifying a blower locked-rotor further includes: and carrying out intermittent power supply on the fan according to the preset time length or the preset times.

In order to achieve the above object, a second embodiment of the present invention provides a device for identifying a blower stall, including: the identification module is used for detecting the current rotating speed of the fan and identifying that the current rotating speed is less than a preset rotating speed for a first preset time; the acquisition module is used for acquiring the current temperature of the fan; and the determining module is used for identifying that the current temperature is less than a preset temperature, determining that the fan has an ice blockage risk, or identifying that the current temperature is greater than or equal to the preset temperature, and determining that the ice generated by the refrigeration equipment is not a factor causing the fan to generate the locked rotor.

According to the device for identifying the blower stalling, the current rotating speed of the blower is detected through the identification module, whether the current rotating speed is smaller than the preset rotating speed is identified, and the first preset time duration lasts, if yes, the current temperature of the blower is obtained through the obtaining module, so that the determining module can judge that the blower is in the risk of ice stalling when the current temperature is identified to be smaller than the preset temperature, or the ice generated by the refrigeration equipment is determined not to be a factor causing the blower stalling when the current temperature is identified to be larger than or equal to the preset temperature. Therefore, the device can effectively judge whether the fan has the risk of ice blockage.

In order to achieve the above object, a refrigeration device according to a third embodiment of the present invention includes the above device for identifying a blower stall.

According to the refrigeration equipment provided by the embodiment of the invention, through the device for identifying the blower blockage, whether the blower has the risk of ice blockage can be effectively judged.

In order to achieve the above object, a fourth aspect of the present invention provides an electronic device, which includes a memory, a processor; the processor runs a program corresponding to the executable program code by reading the executable program code stored in the memory, so as to realize the method for identifying the fan stalling.

According to the electronic equipment provided by the embodiment of the invention, whether the fan has the risk of ice blockage can be effectively judged by the method for identifying the fan blockage.

In order to achieve the above object, a fifth embodiment of the present invention provides a computer-readable storage medium, which stores a computer program, and when the computer program is executed by a processor, the computer program implements the above method for identifying a blower stall.

The computer-readable storage medium of the embodiment of the invention can effectively judge whether the fan has the risk of ice blockage through the executed method for identifying the fan blockage.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a flow chart of a method of identifying a fan stall according to an embodiment of the present invention;

FIG. 2 is a flow chart of a method of identifying a fan stall according to one particular example of the invention;

FIG. 3 is a block diagram representation of an apparatus for identifying a fan stall according to an embodiment of the present invention; and

fig. 4 is a block schematic diagram of a refrigeration appliance according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

A method of identifying a blower stall, a device for identifying a blower stall, and a refrigeration apparatus having the device according to embodiments of the present invention will be described below with reference to the accompanying drawings.

Fig. 1 is a flow chart of a method of identifying a fan stall according to an embodiment of the invention. As shown in fig. 1, the method for identifying a blower locked rotor according to the embodiment of the present invention includes the following steps:

and S1, detecting the current rotating speed of the fan, and identifying that the current rotating speed is less than the preset rotating speed for a first preset duration. The preset rotating speed and the first preset time can be set according to actual conditions.

For example, the current rotation speed of the fan can be detected in real time by a rotation speed measuring instrument arranged on the fan.

And S2, acquiring the current temperature of the fan.

For example, the current temperature at the bracket of the fan may be acquired by a temperature sensor provided at the bracket.

And S3, identifying that the current temperature is lower than the preset temperature, determining that the fan has the risk of ice blockage, or identifying that the current temperature is higher than or equal to the preset temperature, determining that the ice generated by the refrigeration equipment is not the factor causing the fan to generate the locked rotor. The preset temperature may be set according to actual conditions, and may be 1 ℃.

It is understood that ice blockage is the blockage of a fan caused by ice generated by a refrigeration device (such as a refrigerator or ice maker) during long-term operation.

Specifically, when the fan has a normal power supply signal, the current rotating speed of the fan is detected, whether the current rotating speed is smaller than a preset rotating speed or not is judged (the special current rotating speed is zero, namely the fan does not operate), if yes, the condition lasts for a first preset time, the fan is preliminarily judged to be blocked, and power supply to the fan is stopped at the moment. Then, the current temperature of the fan is obtained, and the relationship between the current temperature and the preset temperature (such as 1 ℃) is judged. When the current temperature is lower than the preset temperature, judging that the fan has the risk of ice blockage; when the current temperature is greater than or equal to the preset temperature, it is determined that the fan is not locked due to ice generated by the refrigeration equipment, for example, a false locked state is caused by the fan blades being stuck by hair or small insects, and for example, the fan cannot operate due to the sticks. Therefore, the method can effectively identify whether the factor of the locked rotor of the fan is the ice generated by the refrigeration equipment.

According to an embodiment of the present invention, after identifying that the current temperature is lower than the preset temperature and determining that the blower is at the risk of ice blockage, the method further includes: controlling the refrigeration equipment to execute at least one defrosting program; and identifying that the rotating speed of the fan is recovered to be normal, and determining that the ice generated by the refrigeration equipment is a factor causing the fan to be locked.

According to one embodiment of the invention, the refrigeration equipment is controlled to execute at least one defrosting program, which comprises the following steps: and acquiring the current temperature of the fan at the end of each defrosting procedure, detecting and recognizing that the current temperature is still less than the preset temperature, and controlling the refrigeration equipment to wait for a second preset time to execute the defrosting procedure again. The second preset time period may be calibrated according to actual conditions, and may be 20 minutes, for example.

According to an embodiment of the invention, before recognizing that the rotation speed of the fan is recovered to normal, the method further includes: and controlling the power supply unit to intermittently supply power to the fan according to the first duty ratio.

Further, after controlling the power supply unit to intermittently supply power to the fan according to the first duty ratio, the method further includes: and identifying that the rotating speed of the fan is not recovered to be normal, and determining that the ice generated by the refrigeration equipment is not a factor for the fan to generate the locked rotor.

Specifically, in step S3, when the current temperature is lower than the preset temperature, it is determined that the blower is at risk of ice blockage. And if the fan is blocked by ice, immediately controlling the refrigeration equipment to execute a defrosting program, obtaining the current temperature of the fan again when the defrosting program is finished, and continuously judging the relationship between the current temperature and the preset temperature. If the current temperature is still lower than the preset temperature, controlling the refrigeration equipment to wait for a second preset time (such as 20 minutes) and then executing the defrosting program again until the current temperature is higher than or equal to the preset temperature; and if the current temperature is greater than or equal to the preset temperature, controlling the power supply unit to intermittently supply power to the fan according to the first duty ratio and preset times, for example, firstly supplying power for 30 seconds, then stopping supplying power for 1 minute, and circulating 5 times to intermittently supply power to the fan in such a way. And then, judging whether the rotating speed of the fan is recovered to be normal or not, if the rotating speed of the fan is recovered to be normal, determining that the ice generated by the refrigeration equipment is a factor causing the fan to generate the locked rotation, namely the ice is blocked, otherwise, determining that the ice generated by the refrigeration equipment is not the factor causing the fan to generate the locked rotation, for example, the fan blade is blocked by a small foreign matter to cause the locked rotation false image, and if the fan blade is blocked by a larger foreign matter to cause the incapability of running.

According to an embodiment of the present invention, after determining that the ice generated by the refrigeration equipment is not a factor causing the fan to stall, the method further comprises: controlling the power supply unit to intermittently supply power to the fan according to a second duty ratio; identifying that the rotating speed of the fan is recovered to be normal, and determining that the first type of foreign matters are factors causing the fan to generate locked rotor; and identifying that the rotating speed of the fan is not recovered to be normal, and determining that the second type of foreign matters are factors causing the fan to generate locked rotor. Wherein the size or weight of the first type of foreign matter is less than the size or weight of the second type of foreign matter.

According to an embodiment of the present invention, after determining that the second type of foreign matter is a factor causing the stalling of the fan, the method further includes: and stopping supplying power to the fan and sending an alarm signal.

Specifically, in step S3, after the current temperature is greater than or equal to the preset temperature and it is determined that the ice generated by the refrigeration equipment is not a factor causing the blower to stall, power is supplied to the blower, and the power supply unit is controlled to intermittently supply power to the blower according to the second duty ratio and the preset number of times, for example, the power supply is stopped for 30 seconds after the power supply is started for 30 seconds, and the operation is performed once every half hour for a period of 10 times, and 3 times in total. During the power supply period of the power supply unit, if the rotating speed of the fan is recovered to be normal, the fan can be judged to be a locked rotor false image (recoverable factor) caused by the fact that the fan blades are clamped by fine foreign matters; during the power supply period of the power supply unit, if the rotating speed of the fan is not recovered to be normal, the motor is blocked or the fan blades are clamped by larger foreign matters and cannot operate (unrecoverable factors), and at the moment, the power supply to the fan needs to be stopped and the fan needs to be repaired.

As a specific example, as shown in fig. 2, the method for identifying a blower stall includes the following steps:

and S101, a normal power supply signal exists, and the rotating speed of the fan is smaller than a preset rotating speed or does not run in a certain time.

And S102, preliminarily judging that the fan is locked.

S103, detecting the temperature T of the temperature sensor at the fan bracket.

S104, judging whether T is more than or equal to 1 ℃. If yes, go to step S113; if not, step S105 is performed.

And S105, assuming ice blockage.

And S106, executing a defrosting program.

And S107, detecting the temperature T of the temperature sensor at the fan bracket.

S108, judging whether T is more than or equal to 1 ℃ or not. If yes, go to step S110; if not, step S109 is performed.

S109 waits for 20 minutes, and then returns to step S106.

S110, the power supply detection program 1 is executed. For example, after 30 seconds of each power supply, the power supply is stopped for 1 minute and the cycle is repeated 5 times.

And S111, judging whether the fan normally operates. If yes, go to step S112; if not, execution continues with step S113.

And S112, confirming ice blockage.

And S113, confirming that the ice blockage is not caused.

S114, the power supply detection program 2 is executed. For example, after each power supply for 30 seconds, the power supply is stopped for 30 seconds, 10 times of cycles are taken as one period, the cycles are performed once every half hour, and the cycles are performed 3 times in total.

And S115, judging whether the fan operates normally. If yes, go to step S116; if not, execution continues with step S117.

And S116, recovering the factors. For example, a stall artifact caused by some fine foreign objects sticking the fan blades.

And S117, unrecoverable factors. For example, the motor may be locked or the fan blades may be caught by a large foreign object and may not operate.

And S118, stopping supplying power to the fan and reporting the repair.

It should be noted that, in other embodiments of the present invention, whether the fan is locked or not may be determined by using a single factor such as fan current, power, and air volume, so as to reduce the risk of erroneous determination of locked rotor.

According to the method for identifying the fan stalling, the current rotating speed of the fan is detected, when the current rotating speed is identified to be smaller than the preset rotating speed for a first preset time, the current temperature of the fan is obtained, if the current temperature is identified to be smaller than the preset temperature, the fan is determined to have the ice stalling risk, and if the current temperature is identified to be larger than or equal to the preset temperature, the ice generated by the refrigeration equipment is determined not to be a factor causing the fan stalling. Therefore, the method can effectively judge whether the fan has the risk of ice blockage.

Fig. 3 is a block diagram of an apparatus for identifying a blower stall according to an embodiment of the present invention.

As shown in fig. 3, the device for identifying a blower locked rotor according to the embodiment of the present invention includes: an identification module 10, an acquisition module 20 and a determination module 30.

The identification module 10 is configured to detect a current rotation speed of the fan, and identify that the current rotation speed is less than a preset rotation speed for a first preset duration. The obtaining module 20 is used for obtaining the current temperature of the fan. The determining module 30 is configured to determine that the blower is at an ice blockage risk if the current temperature is lower than the preset temperature, or determine that the ice generated by the refrigeration equipment is not a factor causing the blower to be locked.

According to an embodiment of the present invention, the determining module 30 identifies that the current temperature is less than the preset temperature, and after determining that the blower is at risk of ice blockage, is further configured to: controlling the refrigeration equipment to execute at least one defrosting program; and identifying that the rotating speed of the fan is recovered to be normal, and determining that the ice generated by the refrigeration equipment is a factor causing the fan to be locked.

According to one embodiment of the invention, the refrigeration equipment is controlled to execute at least one defrosting program, which comprises the following steps: and acquiring the current temperature of the fan at the end of each defrosting procedure, detecting and recognizing that the current temperature is still less than the preset temperature, and controlling the refrigeration equipment to wait for a second preset time to execute the defrosting procedure again.

According to an embodiment of the invention, before recognizing that the rotation speed of the fan is recovered to normal, the method further includes: and controlling the power supply unit to intermittently supply power to the fan according to the first duty ratio.

According to an embodiment of the present invention, after controlling the power supply unit to intermittently supply power to the fan according to the first duty ratio, the method further includes: and identifying that the rotating speed of the fan is not recovered to be normal, and determining that the ice generated by the refrigeration equipment is not a factor causing the fan to be locked.

According to an embodiment of the present invention, after the determining module 30 determines that the ice generated by the refrigeration equipment is not a factor causing the blower to be locked, the method further includes: controlling the power supply unit to intermittently supply power to the fan according to a second duty ratio; identifying that the rotating speed of the fan is recovered to be normal, and determining that the first type of foreign matters are factors causing the fan to generate locked rotor; identifying that the rotating speed of the fan is not recovered to be normal, and determining that the second type of foreign matter is a factor causing the fan to be locked; wherein the size or weight of the first type of foreign matter is less than the size or weight of the second type of foreign matter.

It should be noted that, for details that are not disclosed in the device for identifying a locked rotor of a fan according to the embodiment of the present invention, please refer to details that are disclosed in the method for identifying a locked rotor of a fan according to the embodiment of the present invention, and details are not described here again.

According to the device for identifying the blower stalling, the current rotating speed of the blower is detected through the identification module, whether the current rotating speed is smaller than the preset rotating speed is identified, and the first preset time duration lasts, if yes, the current temperature of the blower is obtained through the obtaining module, so that the determining module can judge that the blower is in the risk of ice stalling when the current temperature is identified to be smaller than the preset temperature, or the ice generated by the refrigeration equipment is determined not to be a factor causing the blower stalling when the current temperature is identified to be larger than or equal to the preset temperature. Therefore, the device can effectively judge whether the fan has the risk of ice blockage.

Fig. 4 is a block schematic diagram of a refrigeration appliance according to an embodiment of the present invention.

As shown in fig. 4, the refrigeration apparatus 100 of the embodiment of the present invention includes: the device 110 for identifying the blower stall is described above. The refrigeration apparatus 100 may be a refrigerator or an ice maker, among others.

According to the refrigeration equipment provided by the embodiment of the invention, through the device for identifying the blower blockage, whether the blower has the risk of ice blockage can be effectively judged.

In addition, the invention also provides an electronic device, which comprises a memory and a processor; the processor runs a program corresponding to the executable program code by reading the executable program code stored in the memory, so as to realize the method for identifying the fan stalling.

According to the electronic equipment provided by the embodiment of the invention, whether the fan has the risk of ice blockage can be effectively judged by the method for identifying the fan blockage.

In addition, the present invention further provides a computer-readable storage medium, in which a computer program is stored, and when the computer program is executed by a processor, the method for identifying a blower stall is implemented.

The computer-readable storage medium of the embodiment of the invention can effectively judge whether the fan has the risk of ice blockage through the executed method for identifying the fan blockage.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present disclosure, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing steps of a custom logic function or process, and alternate implementations are included within the scope of the preferred embodiment of the present disclosure in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present disclosure.

The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.

It should be understood that portions of the present disclosure may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.

It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.

In addition, functional units in the embodiments of the present disclosure may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.

The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc. Although embodiments of the present disclosure have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure, and that changes, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present disclosure.