CN107526922B - Method and device for determining residual life of fan - Google Patents
Method and device for determining residual life of fan Download PDFInfo
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- CN107526922B CN107526922B CN201710627444.1A CN201710627444A CN107526922B CN 107526922 B CN107526922 B CN 107526922B CN 201710627444 A CN201710627444 A CN 201710627444A CN 107526922 B CN107526922 B CN 107526922B
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Abstract
The application provides a method and a device for determining the residual life of a fan, which can determine the residual life of the fan at a specific rotating speed, so that the trouble caused by untimely replacement of a failed fan can be avoided. The method comprises the following steps: acquiring the corresponding relation between the service life of the fan and the rotating speed of the fan; acquiring the historical rotating speed of the fan and the running time of the fan under the historical rotating speed; and determining the residual life of the fan at the target rotating speed according to the corresponding relation between the fan life and the fan rotating speed, the historical rotating speed and the operating time of the fan at the historical rotating speed.
Description
Technical Field
The present application relates to the field of communications, and more particularly, to a method and apparatus for determining a remaining life of a fan in the field of communications.
Background
The fan industry has defined fan life by IPC-9591 standard, i.e. 10% of the fan speed at full rotation is below 15%, or noise is above 3dB, which is considered the batch fan life cutoff. In addition, other methods for determining whether the life of the fan is cut off have been proposed in the prior art, for example, when the current of the fan is greater than 15%, the load of the fan is increased by 5%, or the time of change of the fan from the stop to the full load is increased to a certain value, the life of the fan is considered to be cut off.
However, the above method can only judge the existing state of the fan, i.e. the service life is up or not up, and cannot inform the user in real time how long the fan can still run, so that the failed fan cannot be replaced in time, thereby causing unnecessary troubles.
Disclosure of Invention
The application provides a method and a device for determining the residual life of a fan, which can determine the residual life of the fan at a specific rotating speed, so that the trouble caused by untimely replacement of a failed fan can be avoided.
In a first aspect, a method for determining a remaining life of a fan is provided, including: acquiring the corresponding relation between the service life of the fan and the rotating speed of the fan; acquiring the historical rotating speed of the fan and the running time of the fan under the historical rotating speed; and determining the residual life of the fan at the target rotating speed according to the corresponding relation between the fan life and the fan rotating speed, the historical rotating speed and the operating time of the fan at the historical rotating speed.
It should be understood that the target speed is any speed that the fan can achieve or support.
According to the method for determining the remaining life of the fan, the remaining life of the fan at any rotating speed can be determined according to the corresponding relation between the life of the fan and the rotating speed of the fan, the historical rotating speed of the fan and the running time of the fan at the historical rotating speed, so that a user can replace the fan in time when the life of the fan is not cut off, and unnecessary troubles caused by fan faults can be avoided.
In one possible implementation, the fan life to fan speed correspondence is associated with a fan bearing temperature rise.
Fan life is related to fan bearing life, which can be considered as fan bearing life. Fan bearing life may be defined as the time that a fan bearing can continue to operate properly at temperature T. Here, the temperature T, i.e., the temperature of the fan in a steady operation state, can be determined by the fan bearing temperature rise. Generally, the temperature rise of the fan bearing is different at different rotating speeds, so that the service life of the fan at a specific rotating speed can be determined by testing the temperature rise of the fan bearing at the specific rotating speed, and the corresponding relation among the service life of the fan, the rotating speed of the fan and the temperature rise of the fan bearing is determined.
In one possible implementation, the historical rotational speed of the fan includes a first rotational speed, the operating time of the fan at the historical rotational speed is a first operating time,
wherein, the determining the remaining life of the fan at the target rotation speed according to the corresponding relationship between the fan life and the fan rotation speed, the historical rotation speed and the operation time of the fan at the historical rotation speed comprises:
determining the remaining life of the fan at the first rotation speed according to the life of the fan at the first rotation speed and the first operation time;
determining the remaining life of the fan at the target speed according to the following equation:
wherein L is a remaining life of the fan at the target speed, L0 is a remaining life of the fan at the first speed, T1 is a fan bearing temperature rise corresponding to the first speed, T2 is a fan bearing temperature rise corresponding to the target speed, L, L0, T1 and T2 are all greater than or equal to 0, and a and B are constants and are all greater than 0.
In one possible implementation, the method further includes: and displaying the residual service life of the fan at the target rotating speed.
In one possible implementation, the method further includes: and prompting a user to replace the fan under the condition that the residual service life of the fan at the target rotating speed is less than a preset threshold value.
In a second aspect, there is provided an apparatus for determining a remaining life of a fan, configured to perform the method of the first aspect or any possible implementation manner of the first aspect. In particular, the apparatus comprises means for performing the method of the first aspect or any possible implementation manner of the first aspect.
In a third aspect, an apparatus for determining a remaining life of a fan is provided, where the apparatus includes a memory for storing a computer program and a processor for calling the computer program from the memory and executing the computer program, so that the system performs the method of the first aspect and any possible implementation manner of the first aspect.
In a fourth aspect, a computer-readable storage medium is provided for storing a computer program comprising instructions for performing the method of the first aspect described above and any possible implementation manner of the first aspect.
Drawings
Fig. 1 is a schematic flow chart of a method of determining remaining life of a fan according to an embodiment of the present application.
FIG. 2 is a graph illustrating the life of a fan.
Fig. 3 is a schematic block diagram of an apparatus for determining a remaining life of a fan according to an embodiment of the present application.
FIG. 4 is a schematic block diagram of another apparatus for determining remaining life of a fan according to an embodiment of the present application.
Detailed Description
The technical solution in the present application will be described below with reference to the accompanying drawings.
The fan in the application can be applied to the heat dissipation system of various devices (such as electronic equipment, mechanical devices and the like), and whether the fan fails or not has a direct influence on the heat dissipation effect of the system. Therefore, the residual service life of the fan in operation is determined or predicted, so that the user can replace the fan with the service life about to be cut off in time, and the trouble caused by untimely replacement of the failed fan is avoided.
The term "and/or" in this application is only one kind of association relationship describing the associated object, and means that there may be three kinds of relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
In addition, it should be understood that the terms "first" and "second" in the present application are only used for convenience of description and understanding, and should not constitute any limitation to the embodiments of the present application.
Fig. 1 is a schematic flow chart of a method of determining remaining life of a fan according to an embodiment of the present application.
It should be understood that the methods of the present application may be performed by the heat dissipation system of the device or a controller (hereinafter, referred to as a controller) in the device.
It should also be understood that fig. 1 shows detailed communication steps or operations of the method of determining the remaining life of the fan according to the embodiment of the present application, but these steps or operations are merely examples, and the embodiment of the present application may also perform other operations or variations of the various operations in fig. 1. Moreover, the various steps in FIG. 1 may each be performed in a different order than presented in FIG. 1, and it is possible that not all of the operations in FIG. 1 may be performed.
It should be noted that the fan speed percentage referred to in the following description refers to the percentage of the current fan speed to the full fan speed. For example, if the full rotation speed of the fan is 3000 revolutions per minute (min), the rotation speed of the fan is 80% of the current rotation speed of the fan is 2400 revolutions per minute (min).
S110, acquiring the corresponding relation between the service life of the fan and the rotating speed of the fan.
For a certain type of fan, the service life of the fan is different under different rotating speeds. For example, the correspondence between the fan life and the fan rotation speed may be obtained from empirical data or historical data. After obtaining the correspondence relationship, the correspondence relationship may be stored in a heat dissipation system of the apparatus or a memory (hereinafter, referred to as a memory) in the apparatus, and the controller may acquire the correspondence relationship from the storage.
For example, fig. 2 shows a life graph of a fan. From the graph shown in fig. 2, the life of the fan at a particular speed can be determined. Wherein N is a constant greater than 0.
As shown in fig. 2, in the case where the fan speed is 100% of the speed (i.e., the fan is fully rotated), the fan life is about N ten thousand hours; in the case where the fan speed is 80% of the speed (i.e., the fan speed is 80% of full rotation), the fan life is 4 × N ten thousand hours; with a fan speed of 30% speed (i.e., 30% of full rotation), the fan life is about 7.4N ten thousand hours.
For another example, table 1 shows the relationship between the fan life and the fan speed of another fan. The life of the fan at a particular speed can be determined from table 1. Wherein M is a constant greater than 0.
TABLE 1
| Percentage of fan speed (%) | Fan service life (thousands of hours) |
| 100 | |
| 90 | 1.8* |
| 80 | 2.5* |
| 70 | 3.1* |
| 60 | 3.7* |
| 50 | 3.9* |
| 40 | 4.4* |
| 30 | 4.8*M |
Referring to table 1, in the case where the rotation speed of the fan is 100%, the life of the fan is M ten thousand hours; the fan life was 2.5 × mh with a fan speed of 80% speed; with a fan speed of 30% the fan life is about 4.8 × mh. It should be understood that the fan speeds shown in fig. 1 and table 1 are only examples, and the present application does not specifically limit the fan speeds. For example, in the case where the fan support rotation speed is 55%, the fan life at the fan rotation speed of 55% can also be obtained.
Optionally, the fan life to fan speed correspondence is associated with a fan bearing temperature rise.
Specifically, fan life is related to fan bearing life, which can be considered as fan bearing life. Fan bearing life may be defined as the time that a fan bearing can continue to operate properly at temperature T. Here, the temperature T, i.e., the temperature of the fan in a steady operation state, can be determined by the fan bearing temperature rise. Generally, the temperature rise of the fan bearing is different at different rotating speeds, so that the service life of the fan at a specific rotating speed can be determined by testing the temperature rise of the fan bearing at the specific rotating speed, and the corresponding relation among the service life of the fan, the rotating speed of the fan and the temperature rise of the fan bearing is determined.
For example, table 2 shows the correspondence between the fan life, the fan speed, and the fan bearing temperature rise of a fan. Wherein R is a constant greater than 0.
TABLE 2
Referring to table 2, the fan life at different fan speeds can be determined based on the fan bearing temperature rise at that speed. For example, when the temperature of the fan bearing is raised to t ℃, that is, the rotation speed of the fan is the full rotation speed, the service life of the fan is R ten thousand hours; the fan life was 2.5 × R ten thousand hours at a fan bearing temperature rise of 0.5 × t ℃, i.e. at a fan speed of 80% rotation; the fan life was 3.7 × R ten thousand hours at a fan bearing temperature rise of 0.2 × t ℃, i.e., at a fan speed of 60%.
And S120, acquiring the historical rotating speed of the fan and the operating time of the fan at the historical rotating speed.
For example, the controller may record a historical speed of the fan and an operating time of the fan at the historical speed, and may store the recorded content in the memory. The controller may make calls when it is desired to use the content.
S130, determining the residual service life of the fan at the target rotating speed according to the corresponding relation between the service life of the fan and the rotating speed of the fan, the historical rotating speed and the operating time of the fan at the historical rotating speed.
It should be understood that the target speed is any speed that the fan can achieve or support.
For example, the historical rotation speed of the fan is a first rotation speed, the operation time of the fan at the first rotation speed is a first operation time, and the service life of the fan at the first rotation speed is a first service life. If the target rotation speed is the first rotation speed, the remaining life of the fan at the target rotation speed is the difference between the operating time of the fan at the first rotation speed and the life of the fan at the first rotation speed.
For example, referring to table 1, the relationship between the fan life and the fan speed of the fan is that, the first speed is 50%, the operating time of the fan at the first speed (i.e., the first operating time) is 0.25 × mh, and if the target speed is the first speed, the remaining life of the fan at the target speed is: 3.9 × M-0.25 × M ═ 3.65 × M ten thousand hours.
According to the method for determining the remaining life of the fan, the remaining life of the fan at any rotating speed can be determined according to the corresponding relation between the life of the fan and the rotating speed of the fan, the historical rotating speed of the fan and the running time of the fan at the historical rotating speed, so that a user can replace the fan in time when the life of the fan is not cut off, and unnecessary troubles caused by fan faults can be avoided.
Alternatively, as an embodiment of the present application, if the historical rotation speed of the fan is the first rotation speed, and the operation time of the fan at the first rotation speed is the first operation time, the remaining life of the fan at the target rotation speed may be calculated according to equation (1):
in equation (1), L is a remaining life of the fan at the target rotation speed, L0 is a remaining life of the fan at the first rotation speed, T1 is a fan bearing temperature rise corresponding to the first rotation speed, T2 is a fan bearing temperature rise corresponding to the target rotation speed, L, L0, T1 and T2 are all greater than or equal to 0, and a and B are constants and are all greater than 0.
As can be seen from equation (1), if the target rotation speed is the first rotation speed, the remaining life of the fan at the target rotation speed is L0; if the target speed is not equal to the first speed, the remaining life L0 of the fan at the first speed needs to be calculated, and then the remaining life T of the fan at the target speed is calculated according to the fan bearing temperature rise T1 corresponding to the first speed and the fan bearing temperature rise T2 corresponding to the target speed.
For example, it is known that a fan satisfying the correspondence relationship among the fan life, the fan speed, and the fan bearing temperature rise shown in table 2 operates at 50% for one year (0.11 × R ten thousand hours), and then operates at 30% for 2 years (0.22 × R ten thousand hours), and the remaining life of the fan at the full rotation speed is calculated.
First, the remaining life of the fan after operating at 50% speed for one year was calculated.
Referring to table 2, the life of the fan at 50% speed is 4.1 × R ten thousand hours, and in the case of the fan operating at 50% speed for 0.11 × R ten thousand hours, the remaining life of the fan at 50% speed is:
4.1R-0.11R ═ 3.99R ten thousand hours
Then, 3.99 × R ten thousand hours was converted into the life of the fan at 30% of the rotation speed.
Referring to table 2 and equation (1), the temperature difference between 50% and 30% of the fan speed is 0.17 t-0.11 t-0.06 t ℃, so that 3.99R ten thousand hours translates to the life of the fan at 30% of the speed:
3.99 ^ R (A ^ ((0.17 ^ t-0.11 ^ t)/B)) ═ 3.99 ^ R (A ^ ((0.06 ^ t)/B)) ten thousand hours
Next, the remaining life of the fan at 30% speed was calculated.
Referring to table 2, the life of the fan at 30% speed is 4.6 × R hr, and in the case of the fan operating at 30% speed for 0.22 × R ten thousand hr, the remaining life of the fan at 30% speed is:
(3.99 x R (A ^ ((0.06 x t)/B)) -0.22 x R) ten thousand hours
And finally, calculating the residual service life of the fan at the full rotation speed.
The temperature difference between 30% and 100% of the fan speed is-0.89 t-t deg.c, so that the remaining life of the fan at full speed is:
(3.99 x R (A ^ ((0.06 x t)/B)) -0.22 x R) (A ^ ((0.11 x t)/B)) -3.99 x R (A (((-0.83 x t)/B)) -0.22 x R (A ((0.89 t)/B)) ten thousand hours.
Further, after obtaining the remaining life of the fan at the target rotation speed, the method may further include:
and S140, displaying the residual service life of the fan at the target rotating speed.
For example, after the controller determines the remaining life of the fan at the target speed, the heat dissipation system of the device or a display screen (hereinafter, referred to as a display screen) in the device may be controlled to display the remaining life of the fan at the target speed.
In addition, the remaining life of the fan at other rotating speeds can be displayed on the display screen, and the application is not limited in comparison.
Optionally, the method may further include:
and S150, prompting a user to replace the fan under the condition that the residual service life of the fan at the target rotating speed is less than a preset threshold value.
For example, when the remaining life of the fan at the target rotating speed is less than a preset threshold value, a heat dissipation system of the device or an alarm system in the device is triggered to alarm so as to prompt a user to replace the fan.
The preset threshold in the present application may be, for example, 50 hours, 20 hours, and the like, which is not limited in the embodiment of the present application.
When the service life of the fan is about to be cut off, unnecessary troubles caused by fan faults can be avoided by prompting a user to replace the fan.
Fig. 3 is a schematic block diagram of an apparatus 300 for determining remaining life of a fan according to an embodiment of the present application. The apparatus 300 comprises: an acquisition unit 310 and a determination unit 320.
An obtaining unit 310, configured to obtain a corresponding relationship between a life of a fan and a rotation speed of the fan; and acquiring the historical rotating speed of the fan and the running time of the fan at the historical rotating speed.
A determining unit 320, configured to determine the remaining life of the fan at the target speed according to the relationship between the fan life and the fan speed, the historical speed, and the operating time of the fan at the historical speed, which are acquired by the acquiring unit 310.
Optionally, the fan life to fan speed correspondence is associated with a fan bearing temperature rise.
Optionally, the historical rotational speed of the fan comprises a first rotational speed, the operating time of the fan at the historical rotational speed is a first operating time,
the determining unit 320 is specifically configured to:
determining the remaining life of the fan at the first rotation speed according to the life of the fan at the first rotation speed and the first operation time;
determining the remaining life of the fan at the target speed according to the following equation:
wherein L is a remaining life of the fan at the target speed, L0 is a remaining life of the fan at the first speed, T1 is a fan bearing temperature rise corresponding to the first speed, T2 is a fan bearing temperature rise corresponding to the target speed, L, L0, T1 and T2 are all greater than or equal to 0, and a and B are constants and are all greater than 0.
Optionally, the apparatus 300 further comprises:
and a display unit 330 for displaying the remaining life of the fan at the target rotation speed.
Optionally, the apparatus 300 further comprises:
and the prompting unit 340 is used for prompting a user to replace the fan when the remaining life of the fan at the target rotating speed is less than a preset threshold value.
It will be appreciated that the units of the apparatus 300 are adapted to perform the steps of the above-described methods, respectively, and thus the advantageous effects of the above-described method embodiments can also be achieved. Here, detailed description thereof is omitted in order to avoid redundancy.
Fig. 4 is a schematic block diagram of another apparatus 400 for determining remaining life of a fan according to an embodiment of the present application. The apparatus 400 comprises: a processor 410 and a memory 420. The processor 410 and the memory 420 communicate with each other via internal connection paths, passing control and/or data signals. The processor 410 is configured to obtain a corresponding relationship between a life of the fan and a rotational speed of the fan; acquiring the historical rotating speed of the fan and the running time of the fan under the historical rotating speed; and determining the residual life of the fan at the target rotating speed according to the acquired corresponding relation between the fan life and the fan rotating speed, the historical rotating speed and the operating time of the fan at the historical rotating speed.
Optionally, the fan life to fan speed correspondence is associated with a fan bearing temperature rise.
Optionally, the historical rotational speed of the fan comprises a first rotational speed, the operating time of the fan at the historical rotational speed is a first operating time,
wherein, the processor 410 is specifically configured to:
determining the remaining life of the fan at the first rotation speed according to the life of the fan at the first rotation speed and the first operation time;
determining the remaining life of the fan at the target speed according to the following equation:
wherein L is a remaining life of the fan at the target speed, L0 is a remaining life of the fan at the first speed, T1 is a fan bearing temperature rise corresponding to the first speed, T2 is a fan bearing temperature rise corresponding to the target speed, L, L0, T1 and T2 are all greater than or equal to 0, and a and B are constants and are all greater than 0.
Optionally, the apparatus 400 may further include:
and a display 430 for displaying the remaining life of the fan at the target speed.
Further, the display 430 may be a display screen.
Optionally, the apparatus 400 may further include:
and the prompter 440 is used for prompting a user to replace the fan when the residual life of the fan at the target rotating speed is less than a preset threshold value.
Further, the prompter 440 may be an alarm. It should be understood that when the processor 410 calls and runs the computer program from the memory, the processor 410 can be used to execute the steps of the method 200, and the description thereof is omitted here for brevity. The embodiment of the application can be applied to or realized by a processor. The processor may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The processor may be a Central Processing Unit (CPU), other general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software in the decoding processor. The software may be in ram, flash, rom, prom, or eprom, registers, among other storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.
It will also be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM, enhanced SDRAM, SLDRAM, Synchronous Link DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.
It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. 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 present application.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and no further description is provided herein.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (6)
1. A method of determining remaining life of a fan, comprising:
acquiring a corresponding relation between the service life of a fan and the rotating speed of the fan, wherein the corresponding relation between the service life of the fan and the rotating speed of the fan is associated with the temperature rise of a bearing of the fan;
acquiring historical rotating speed of the fan and running time of the fan at the historical rotating speed;
determining the residual life of the fan at a target rotating speed according to the corresponding relation between the fan life and the fan rotating speed, the historical rotating speed and the operating time of the fan at the historical rotating speed, wherein the historical rotating speed comprises a first rotating speed, and the operating time of the fan at the historical rotating speed is the first operating time,
wherein, the determining the remaining life of the fan at the target rotation speed according to the corresponding relationship between the fan life and the fan rotation speed, the historical rotation speed and the operation time of the fan at the historical rotation speed comprises:
determining the remaining life of the fan at the first speed according to the life of the fan at the first speed and the first operating time;
determining a remaining life of the fan at the target speed according to the following formula:
wherein L is a remaining life of the fan at the target rotational speed, L0 is a remaining life of the fan at the first rotational speed, T1 is a fan bearing temperature rise corresponding to the first rotational speed, T2 is a fan bearing temperature rise corresponding to the target rotational speed, all of L, L0, T1 and T2 are greater than or equal to 0, and a and B are constants and all are greater than 0.
2. The method of claim 1, wherein the method further comprises:
and displaying the residual service life of the fan at the target rotating speed.
3. The method of claim 1, wherein the method further comprises:
and prompting a user to replace the fan when the residual life of the fan at the target rotating speed is less than a preset threshold value.
4. An apparatus for determining remaining life of a fan, comprising:
the device comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring the corresponding relation between the service life of a fan and the rotating speed of the fan, and the corresponding relation between the service life of the fan and the rotating speed of the fan is related to the temperature rise of a bearing of the fan;
the acquisition unit is further used for acquiring the historical rotating speed of the fan and the running time of the fan at the historical rotating speed;
a determining unit, configured to determine a remaining life of the fan at a target rotation speed according to a correspondence between the fan life and a fan rotation speed, the historical rotation speed and an operating time of the fan at the historical rotation speed, where the historical rotation speed includes a first rotation speed, and the operating time of the fan at the historical rotation speed is a first operating time,
wherein the determining unit is specifically configured to:
determining the remaining life of the fan at the first speed according to the life of the fan at the first speed and the first operating time;
determining a remaining life of the fan at the target speed according to the following formula:
wherein L is a remaining life of the fan at the target rotational speed, L0 is a remaining life of the fan at the first rotational speed, T1 is a fan bearing temperature rise corresponding to the first rotational speed, T2 is a fan bearing temperature rise corresponding to the target rotational speed, all of L, L0, T1 and T2 are greater than or equal to 0, and a and B are constants and all are greater than 0.
5. The apparatus of claim 4, wherein the apparatus further comprises:
and the display unit is used for displaying the residual service life of the fan at the target rotating speed.
6. The apparatus of claim 4, wherein the apparatus further comprises:
and the prompting unit is used for prompting a user to replace the fan under the condition that the residual service life of the fan at the target rotating speed is less than a preset threshold value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710627444.1A CN107526922B (en) | 2017-07-28 | 2017-07-28 | Method and device for determining residual life of fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN110006014A (en) | 2018-01-05 | 2019-07-12 | 通用电气照明解决方案有限公司 | A kind of the fan life forecasting system and its method of lamp and lamp |
| CN109372785A (en) * | 2018-08-16 | 2019-02-22 | 浙江艾罗网络能源技术有限公司 | A kind of method of determining fan remaining life |
| CN111678681B (en) * | 2020-05-21 | 2022-09-16 | 中国长城科技集团股份有限公司 | Fan service life detection method, system, terminal equipment and storage medium |
| CN113867513A (en) * | 2021-09-18 | 2021-12-31 | 山东云海国创云计算装备产业创新中心有限公司 | Prediction method, device, equipment and medium for service life of PSU |
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