1. A water outlet control method is used for controlling water outlet of a water heater, and comprises the following steps:

determining a target water yield Q and a target time length T0;

calculating a target flow F1 according to the target water yield Q and the target time length T0;

controlling a target water outlet structure to discharge water according to the target flow F1;

controlling the target water outlet structure to be closed when the opening time length T1 of the target water outlet structure reaches the target time length T0.

2. The method of claim 1, wherein determining the target water output Q and the target time period T0 comprises:

determining one preset water outlet structure in a plurality of preset water outlet structures as the target water outlet structure;

determining the preset water quantity corresponding to the target water outlet structure in a plurality of preset water quantities as the target water outlet quantity Q;

the preset water outlet structures and the preset water quantities are in one-to-one mapping relation.

3. The water discharge control method according to claim 2, wherein before determining the target water discharge Q and the target time period T0, the water discharge control method further comprises: a step of determining the preset water amount,

the preset water amount determining step includes:

controlling one preset water outlet structure in the plurality of preset water outlet structures to be opened;

and under the condition that the water outlet temperature of the preset water outlet structure meets a preset condition, determining the current accumulated water outlet quantity Q1 of the preset water outlet structure as the preset water quantity corresponding to the preset water outlet structure.

4. The method of claim 3, wherein after controlling the opening of one of the preset water outlet structures, the step of determining the preset water amount further comprises: determining the accumulated water yield Q1 of the preset water outlet structure,

determining the accumulated water output Q1 of the preset water outlet structure comprises the following steps:

acquiring the real-time water outlet flow F and the opening time T of the preset water outlet structure;

calculating the cumulative water yield Q1 according to the formula Q1 ═ F Δ T.

5. The effluent control method of claim 1, comprising:

and controlling a reminding device to send out a reminding signal when the opening time length T1 of the target water outlet structure reaches the target time length T0.

6. The effluent control method of any one of claims 1 to 5, wherein controlling a target effluent structure to produce water at the target flow rate F1 comprises:

acquiring the current water outlet flow F2 of the target water outlet structure;

controlling the target water outlet structure to maintain the current working state under the condition that the current water outlet flow F2 is equal to the target flow F1;

when the current effluent flow F2 is smaller than the target flow F1, controlling the current effluent flow F2 to be increased so that the current effluent flow F2 is equal to the target flow F1;

in the case that the current water outlet flow rate F2 is greater than the target flow rate F1, control decreases the current water outlet flow rate F2 so that the current water outlet flow rate F2 is equal to the target flow rate F1.

7. The effluent control method according to claim 6, wherein controlling the current effluent flow rate F2 to increase comprises: controlling a rotational speed of a water pump for supplying water to the target water outlet structure to increase.

8. The effluent control method of claim 6, wherein controlling the current effluent flow rate F2 to decrease comprises: controlling a reduction in an outlet flow rate of a water volume server for supplying water to the target outlet structure.

9. The effluent control method of any one of claims 1 to 5, wherein controlling a target effluent structure to produce water at the target flow rate F1 comprises: the flow correction step may be repeated as it is,

the flow correction step includes:

determining a total water outlet quantity Q2 of the target water outlet structure and an opening time length T1 of the target water outlet structure;

calculating the theoretical flow F3 according to the formula F3 ═ Q-Q2)/(T0-T1;

in the case where the theoretical flow rate F3 and the target flow rate F1 are not equal, the target flow rate F1 is updated so that the target flow rate F1 is equal to the theoretical flow rate F3.

10. A water outflow control apparatus, comprising:

a first determination unit for determining a target water yield Q and a target time length T0;

the calculating unit is used for calculating a target flow F1 according to the target water yield Q and the target time length T0;

the first control unit is used for controlling a target water outlet structure to outlet water according to the target flow F1;

a second control unit, configured to control the target water outlet structure to be closed when the opening time period T1 of the target water outlet structure reaches the target time period T0.

11. A non-volatile storage medium, characterized in that the non-volatile storage medium includes a stored program, and when the program runs, the device where the non-volatile storage medium is located is controlled to execute the water outlet control method according to any one of claims 1 to 9.

12. A processor, wherein the processor is configured to run a program, wherein the program is configured to execute the method of any one of claims 1 to 9 when running.

13. A water heater comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the water outlet control method of any one of claims 1 to 9 when executing the computer program.

Background

Among the prior art, when using the hot water of water heater, after opening water structures such as tap or gondola water faucet, because it has one section pipeline to go out between water structure and the water heater body, just can go out hot water after the cold water evacuation in this section pipeline, at the row of cold water in-process, the user needs to wait for and observe in water structure department, especially when the distance between water structure and the water heater body is far away, need the longer time to discharge cold water, not only waste time, and lead to the user to catch a cold when weather is colder easily, in addition, also very easily because the user neglects hot water to lead to the hot water loss, cause the hot water extravagant. Therefore, the hot water supply control effect of the water heater in the related art is not good.

In view of the above problems, no effective solution has been proposed.

The above information disclosed in the background section is only for enhancement of understanding of the background of the technology described herein. The background art may therefore contain certain information that does not form the known prior art to those skilled in the art.

Disclosure of Invention

The embodiment of the invention provides a water outlet control method and device, a water heater, a storage medium and a processor, which are used for at least solving the problem of poor hot water supply control effect of the water heater in the prior art.

In order to achieve the above object, according to a first aspect of embodiments of the present invention, there is provided a water outlet control method for controlling water outlet of a water heater, the water outlet control method including: determining a target water yield Q and a target time length T0; calculating a target flow F1 according to the target water yield Q and the target time length T0; controlling the target water outlet structure to discharge water according to the target flow F1; in the case where the opening period T1 of the target effluent structure reaches the target period T0, the target effluent structure is controlled to be closed.

Further, determining the target water yield Q and the target time length T0 includes: determining one preset water outlet structure in the plurality of preset water outlet structures as a target water outlet structure; determining a preset water quantity corresponding to the target water outlet structure in the plurality of preset water quantities as a target water outlet quantity Q; the water outlet structures and the water outlet structures are in one-to-one mapping relation.

Further, before determining the target water yield Q and the target time length T0, the water outlet control method further includes: a preset water amount determining step, wherein the preset water amount determining step comprises the following steps: controlling a preset water outlet structure in the plurality of preset water outlet structures to be opened; and under the condition that the outlet water temperature of the preset water outlet structure meets the preset condition, determining the current accumulated outlet water quantity Q1 of the preset water outlet structure as the preset water quantity corresponding to the preset water outlet structure.

Further, after controlling the opening of one of the preset water outlet structures, the step of determining the preset water amount further includes: determining the cumulative water yield Q1 of the preset water outlet structure, wherein determining the cumulative water yield Q1 of the preset water outlet structure comprises: acquiring real-time water outlet flow F and opening time T of a preset water outlet structure; according to the formula Q1 ═ F Δ T, the cumulative water yield Q1 is calculated.

Further, the water outlet control method comprises the following steps: and controlling the reminding device to send out a reminding signal when the opening time length T1 of the target water outlet structure reaches the target time length T0.

Further, the control target water outlet structure is used for discharging water according to a target flow rate F1, and comprises the following steps: acquiring the current water outlet flow F2 of the target water outlet structure; under the condition that the current water outlet flow rate F2 is equal to the target flow rate F1, controlling the target water outlet structure to maintain the current working state; when the current water outlet flow F2 is smaller than the target flow F1, controlling the current water outlet flow F2 to be increased so that the current water outlet flow F2 is equal to the target flow F1; in the case where the current outflow F2 is greater than the target flow F1, control decreases the current outflow F2 so that the current outflow F2 is equal to the target flow F1.

Further, controlling the current effluent flow rate F2 to increase includes: controlling the rotation speed of a water pump for supplying water to the target water outlet structure to increase.

Further, the control reduces the current water outlet flow rate F2, including: the water output flow of a water quantity servo for supplying water to the target water output structure is controlled to be reduced.

Further, the control target water outlet structure is used for discharging water according to a target flow rate F1, and comprises the following steps: a flow correction step that can be repeatedly performed, the flow correction step comprising: determining the total effluent quantity Q2 of the target effluent structure and the starting time length T1 of the target effluent structure; calculating the theoretical flow F3 according to the formula F3 ═ Q-Q2)/(T0-T1; in the case where the theoretical flow rate F3 is not equal to the target flow rate F1, the target flow rate F1 is updated so that the target flow rate F1 becomes equal to the theoretical flow rate F3.

According to a second aspect of the embodiments of the present invention, there is provided a water outlet control device, including: a first determination unit for determining a target water yield Q and a target time length T0; the calculating unit is used for calculating a target flow F1 according to the target water yield Q and the target time length T0; the first control unit is used for controlling the target water outlet structure to discharge water according to the target flow F1; and the second control unit is used for controlling the target water outlet structure to be closed under the condition that the opening time length T1 of the target water outlet structure reaches the target time length T0.

According to a third aspect of the embodiments of the present invention, a non-volatile storage medium is provided, where the non-volatile storage medium includes a stored program, and a device in which the non-volatile storage medium is controlled during the program running executes the above-mentioned water outlet control method.

According to a fourth aspect of the embodiments of the present invention, there is provided a processor, configured to execute a program, where the program executes the above-mentioned effluent control method.

According to a fifth aspect of the embodiments of the present invention, there is provided a water heater, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the above-mentioned water outlet control method when executing the computer program.

The water outlet control method applying the technical scheme of the invention is used for controlling the water outlet of the water heater, and comprises the following steps: determining a target water yield Q and a target time length T0; calculating a target flow F1 according to the target water yield Q and the target time length T0; controlling the target water outlet structure to discharge water according to the target flow F1; in the case where the opening period T1 of the target effluent structure reaches the target period T0, the target effluent structure is controlled to be closed. Because the length of the pipeline between the target water outlet structure and the water heater body is fixed, the amount of cold water stored in the partial pipeline structure is also fixed, namely the target water outlet amount Q, the target flow F1 is calculated according to the preset target time length T0 or the target time length input by a user, the cold water in the pipeline can be accurately discharged when the water outlet time length reaches the target time length T0, and then the target water outlet structure is closed, so that the user can conveniently and directly use hot water when opening the target water outlet structure. By adopting the water outlet control method, cold water in the pipeline of the water heater can be accurately discharged within the target time length T0, hot water supply is realized, and hot water waste is avoided. The water outlet control process does not need a user to wait at the water outlet structure and observe the water outlet state in real time, and the problem of poor hot water supply control effect of the water heater in the prior art is solved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

FIG. 1 is a schematic flow diagram of an alternative embodiment of a method of effluent control according to the present invention;

FIG. 2 is a schematic view of an alternative embodiment of a water egress control device according to the present invention.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. Also, in the specification and claims, when an element is described as being "connected" to another element, the element may be "directly connected" to the other element or "connected" to the other element through a third element.

Fig. 1 is a water outlet control method for controlling water outlet of a water heater according to an embodiment of the present invention, as shown in fig. 1, the method includes the following steps:

step S102, determining a target water yield Q and a target time length T0;

step S104, calculating a target flow F1 according to the target water yield Q and the target time length T0;

step S106, controlling a target water outlet structure to discharge water according to a target flow F1;

and S108, controlling the target water outlet structure to be closed under the condition that the opening time length T1 of the target water outlet structure reaches the target time length T0.

The water outlet control method adopting the scheme is used for controlling the water outlet of the water heater, and comprises the following steps: determining a target water yield Q and a target time length T0; calculating a target flow F1 according to the target water yield Q and the target time length T0; controlling the target water outlet structure to discharge water according to the target flow F1; in the case where the opening period T1 of the target effluent structure reaches the target period T0, the target effluent structure is controlled to be closed. Because the length of the pipeline between the target water outlet structure and the water heater body is fixed, the amount of cold water stored in the partial pipeline structure is also fixed, namely the target water outlet amount Q, the target flow F1 is calculated according to the preset target time length T0 or the target time length input by a user, the cold water in the pipeline can be accurately discharged when the water outlet time length reaches the target time length T0, and then the target water outlet structure is closed, so that the user can conveniently and directly use hot water when opening the target water outlet structure. By adopting the water outlet control method, cold water in the pipeline of the water heater can be accurately discharged within the target time length T0, hot water supply is realized, and hot water waste is avoided. The water outlet control process does not need a user to wait at the water outlet structure and observe the water outlet state in real time, and the problem of poor hot water supply control effect of the water heater in the prior art is solved.

It is easy to understand that the target flow rate F1 is most typically calculated according to the target water yield Q and the target time length T0, i.e., the target flow rate F1 is calculated according to the formula F1Q/T0. Of course, the determination process of the target flow F1 can be flexibly changed according to actual needs.

Specifically, determining the target water yield Q and the target time length T0 includes: determining one preset water outlet structure in the plurality of preset water outlet structures as a target water outlet structure; determining a preset water quantity corresponding to the target water outlet structure in the plurality of preset water quantities as a target water outlet quantity Q; the water outlet structures and the water outlet structures are in one-to-one mapping relation. That is, in the case that the water heater has a plurality of preset water outlet structures, each preset water outlet structure corresponds to a specific preset water amount, and when the corresponding preset water outlet structure is selected as the target water outlet structure, the corresponding preset water amount is determined as the target water outlet amount Q. When the water heater is provided with a plurality of preset water outlet structures, the length of the pipeline between each preset water outlet structure and the water heater body is fixed, so that the water discharge amount required for emptying cold water in the part of the pipeline is also fixed, the target water outlet amount Q can be conveniently and accurately determined, and the function of conveniently and accurately emptying cold water in the pipeline is realized.

Before determining the target water yield Q and the target time length T0, the water yield control method further includes a preset water yield determination step, where the preset water yield determination step includes: controlling a preset water outlet structure in the plurality of preset water outlet structures to be opened; and under the condition that the outlet water temperature of the preset water outlet structure meets the preset condition, determining the current accumulated outlet water quantity Q1 of the preset water outlet structure as the preset water quantity corresponding to the preset water outlet structure.

That is, the preset water amount is predetermined by controlling a preset water outlet structure to open, and recording the accumulated water output Q1 as the preset water output corresponding to the preset water outlet structure when the water outlet temperature of the preset water outlet structure meets the predetermined condition. The predetermined condition can be flexibly determined according to the temperature requirement, for example, the water temperature can reach 30 ℃ or 40 ℃ or 50 ℃, or the user subjectively feels that the outlet water is heated or cooled.

In this embodiment, after controlling one of the preset water outlet structures to be opened, the step of determining the preset water amount further includes: determining the cumulative water yield Q1 of the preset water outlet structure, wherein determining the cumulative water yield Q1 of the preset water outlet structure comprises: acquiring real-time water outlet flow F and opening time T of a preset water outlet structure; according to the formula Q1 ═ F Δ T, the cumulative water yield Q1 is calculated. Determining the cumulative water output Q1 in this manner can provide more accurate results, which can facilitate accurate mapping of the water temperature status to the cumulative water output Q1 status, thereby improving the accuracy of subsequent control of the cold water emptying process.

In order to ensure that a user can use hot water in time after cold water in a pipeline is emptied, the water outlet control method comprises the following steps: and controlling the reminding device to send out a reminding signal when the opening time length T1 of the target water outlet structure reaches the target time length T0.

In order to enable more accurate control of the outlet water flow and thus guarantee the accuracy of the cold water emptying operation, the target outlet water structure is controlled to discharge water according to a target flow F1, and the method comprises the following steps: acquiring the current water outlet flow F2 of the target water outlet structure; under the condition that the current water outlet flow rate F2 is equal to the target flow rate F1, controlling the target water outlet structure to maintain the current working state; when the current water outlet flow F2 is smaller than the target flow F1, controlling the current water outlet flow F2 to be increased so that the current water outlet flow F2 is equal to the target flow F1; in the case where the current outflow F2 is greater than the target flow F1, control decreases the current outflow F2 so that the current outflow F2 is equal to the target flow F1.

In specific implementation, the controlling of increasing the current effluent flow rate F2 includes: controlling the rotation speed of a water pump for supplying water to the target water outlet structure to increase; the control reduces the current water outlet flow F2, and comprises the following steps: the water output flow of a water quantity servo for supplying water to the target water output structure is controlled to be reduced. This is advantageous for achieving more accurate control of the current outflow F2, ensuring that the current outflow F2 coincides with the desired target flow F1, and thus ensuring the accuracy of control of the cold water emptying operation.

On the basis, the target water outlet structure is controlled to discharge water according to the target flow rate F1, and the method comprises the following steps: a flow correction step that can be repeatedly performed, the flow correction step comprising: determining the total effluent quantity Q2 of the target effluent structure and the starting time length T1 of the target effluent structure; calculating the theoretical flow F3 according to the formula F3 ═ Q-Q2)/(T0-T1; in the case where the theoretical flow rate F3 is not equal to the target flow rate F1, the target flow rate F1 is updated so that the target flow rate F1 becomes equal to the theoretical flow rate F3.

In the cold water emptying process, a flow correction step which can be repeatedly executed is further arranged, when the flow correction step is executed, the total water outlet amount Q2 of a target water outlet structure and the starting time length T1 of the target water outlet structure are obtained, and then a theoretical flow F3 can be calculated by using a formula F3 ═ Q-Q2)/(T0-T1, at the moment, as long as the target water outlet structure is subsequently controlled to discharge water according to the theoretical flow F3, the water outlet amount can reach the target water outlet amount Q when the water outlet time length reaches the target time length T0, so that cold water is accurately discharged, and through the flow correction step, the control error can be effectively reduced, and the control precision of cold water discharging operation is improved.

Next, as shown in fig. 2, an embodiment of the present invention further provides a water outlet control device, which includes: a first determination unit for determining a target water yield Q and a target time length T0; the calculating unit is used for calculating a target flow F1 according to the target water yield Q and the target time length T0; the first control unit is used for controlling the target water outlet structure to discharge water according to the target flow F1; and the second control unit is used for controlling the target water outlet structure to be closed under the condition that the opening time length T1 of the target water outlet structure reaches the target time length T0.

Specifically, the first determination unit includes a first determination module and a second determination module: the first determining module is used for determining one preset water outlet structure in the plurality of preset water outlet structures as a target water outlet structure; the second determining module is used for determining a preset water quantity corresponding to the target water outlet structure in the plurality of preset water quantities as a target water outlet quantity Q; the water outlet structures and the water outlet structures are in one-to-one mapping relation.

Specifically, the water outlet control device further comprises a second determining unit, the second determining unit is used for determining the preset water amount, and the second determining unit comprises a first control module and a third determining module: the first control module is used for controlling one preset water outlet structure in the plurality of preset water outlet structures to be opened before the target water outlet quantity Q and the target time length T0 are determined; the third determining module is configured to determine, when the outlet water temperature of the preset water outlet structure meets a predetermined condition, that the current accumulated water yield Q1 of the preset water outlet structure is a preset water amount corresponding to the preset water outlet structure.

Specifically, after controlling one preset water outlet structure of the plurality of preset water outlet structures to be opened, the second determining unit includes a fourth determining module: the fourth determining module is used for determining the accumulated water yield Q1 of the preset water outlet structure, and comprises an obtaining submodule and a calculating submodule: the acquisition submodule is used for acquiring the real-time water outlet flow F and the opening time T of a preset water outlet structure; the calculation submodule is used for calculating the accumulated water yield Q1 according to the formula Q1 ═ F Δ T.

The water outlet control device further comprises a third control unit, and the third control unit is used for controlling the reminding device to send out a reminding signal when the starting time length T1 of the target water outlet structure reaches the target time length T0.

Specifically, the first control unit includes an acquisition module and a second control module: the acquisition module is used for acquiring the current water outlet flow F2 of the target water outlet structure; the second control module is used for controlling the target water outlet structure to maintain the current working state under the condition that the current water outlet flow F2 is equal to the target flow F1; when the current water outlet flow F2 is smaller than the target flow F1, controlling the current water outlet flow F2 to be increased so that the current water outlet flow F2 is equal to the target flow F1; in the case where the current outflow F2 is greater than the target flow F1, control decreases the current outflow F2 so that the current outflow F2 is equal to the target flow F1.

Specifically, the second control module is configured to: controlling the rotation speed of a water pump for supplying water to the target water outlet structure to increase; the second control module is further configured to: the water output flow of a water quantity servo for supplying water to the target water output structure is controlled to be reduced.

Specifically, the first control unit includes a flow correction module: the flow correction module can repeatedly execute the flow correction step, and the flow correction step comprises the following steps: determining the total effluent quantity Q2 of the target effluent structure and the starting time length T1 of the target effluent structure; calculating the theoretical flow F3 according to the formula F3 ═ Q-Q2)/(T0-T1; in the case where the theoretical flow rate F3 is not equal to the target flow rate F1, the target flow rate F1 is updated so that the target flow rate F1 becomes equal to the theoretical flow rate F3.

In addition, the embodiment of the invention also provides a nonvolatile storage medium, the nonvolatile storage medium comprises a stored program, and when the program runs, the equipment where the nonvolatile storage medium is located is controlled to execute the water outlet control method.

The embodiment of the invention further provides a processor, wherein the processor is used for running the program, and the program is used for executing the water outlet control method when running.

Finally, the embodiment of the invention also provides a water heater, which comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor realizes the water outlet control method when executing the computer program.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments. Moreover, the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer-executable instructions, and while a logical order is illustrated in the flowcharts, in some cases, the steps illustrated or described may be performed in an order different than here.

In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple 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, units or modules, and may be in an electrical 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 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 invention 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 integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

If the integrated unit is softThe functional elements may be embodied in the form of a computer readable storage medium and sold or used as a stand-alone product. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes 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 invention. And the aforementioned storage medium includes: u disk, Read-only memory (ROM, Read-Onl)_y Memor_y) Random Access Memory (RAM)_y) Various media that can store program codes, such as a removable hard disk, a magnetic disk, or an optical disk.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.