Control method, device, equipment, storage medium and program product of washing machine

Abstract

The application belongs to the technical field of smart home, and particularly relates to a control method, device and equipment of a washing machine, a storage medium and a program product. The application aims to solve the problem that the existing control method still has water leakage. The application obtains the water level change frequency of a washing machine water containing barrel in a preset time period and the water level height of the washing machine water containing barrel at the end of the preset time period; according to the water level change frequency and a preset change frequency, the abnormal type of the washing machine is judged, wherein the abnormal type includes a first abnormality and a second abnormality; according to the abnormal type of the washing machine, the water level threshold is determined; and according to the water level threshold and the water level height, the washing machine is abnormally processed. The water level change frequency is used to judge the failure degree of the washing machine, and the washing machine is abnormally processed according to the water level threshold and the water level height, so as to prevent water from overflowing from the water containing barrel, avoid water leakage and improve the safety of the washing machine in use.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of smart home, and particularly relates to a control method, device and equipment of a washing machine, a storage medium and a program product. BACKGROUND

[0002] With the increasing improvement of people's living standards, the washing machine has gradually become one of the necessary household appliances in people's life, greatly facilitating people's daily life.

[0003] In the use process of the washing machine, the water inlet valve may be damaged, causing continuous water to enter the water tub, resulting in water overflowing from the water tub, causing water leakage. In the related art, the water level in the water tub is usually detected to determine whether it is higher than the critical water level. If the water level is higher than the critical water level, the drainage device is opened to drain water.

[0004] However, the above control method still has the risk of water leakage. SUMMARY

[0005] In order to solve the above problems in the prior art, i.e. to solve the problem of water leakage of the existing washing machine, the embodiments of the present application provide a control method, device and equipment of a washing machine, a storage medium and a program product.

[0006] In a first aspect, the embodiments of the present application provide a control method of a washing machine, comprising:

[0007] obtaining a water level change frequency of a water tub of the washing machine in a preset time period and a water level height of the water tub of the washing machine at the end of the preset time period;

[0008] determining an abnormal type of the washing machine according to the water level change frequency and a preset change frequency, wherein the abnormal type includes a first abnormality and a second abnormality;

[0009] determining a water level threshold according to the abnormal type of the washing machine;

[0010] performing abnormal processing on the washing machine according to the water level threshold and the water level height.

[0011] In a possible implementation, determining the abnormal type of the washing machine according to the water level change frequency and the preset change frequency comprises:

[0012] if the water level change frequency is greater than the preset change frequency, determining that the abnormal type of the washing machine is the first abnormality;

[0013] if the water level change frequency is less than the preset change frequency, determining that the abnormal type of the washing machine is the second abnormality.

[0014] In a possible implementation, the water level threshold is determined according to the abnormal type, including:

[0015] If the water level height is higher than the water level threshold, the washing machine is processed abnormally.

[0016] In a possible implementation, the washing machine is processed abnormally, including:

[0017] At least one of the following is performed: draining the water in the washing machine tub and sending an abnormal alarm information.

[0018] In a possible implementation, the abnormal alarm information is sent, including:

[0019] The alarm information is sent to a user terminal or an alarm device of the washing machine.

[0020] In a second aspect, an embodiment of the present application provides a control device of a washing machine, including:

[0021] An acquisition module is configured to acquire a water level change frequency of a washing machine tub of the washing machine in a preset time period and a water level height at an end time of the preset time period;

[0022] A first determination module is configured to determine an abnormal type of the washing machine according to the change frequency and a preset change frequency, the abnormal type including a first abnormality and a second abnormality;

[0023] A second determination module is configured to determine a water level threshold according to the abnormal type of the washing machine.

[0024] A control module is configured to process the washing machine abnormally according to the water level threshold and the water level height.

[0025] In a possible implementation, an alarm module is further included, configured to send an alarm according to the water level threshold and the water level height.

[0026] In a third aspect, an embodiment of the present application provides a device including at least one processor and a memory, the memory storing computer execution instructions;

[0027] The at least one processor executes the computer execution instructions stored in the memory, so that the at least one processor executes the control method of any one of the first aspect.

[0028] In a fourth aspect, an embodiment of the present application provides a storage medium, wherein the storage medium stores computer execution instructions, and when a processor executes the computer execution instructions, the control method of the washing machine according to any one of the first aspect is implemented.

[0029] In a fifth aspect, an embodiment of the present application provides a program product, comprising a computer program, and when the computer program is executed by a processor, the control method according to any one of the first aspect is implemented.

[0030] Those skilled in the art can understand that the control method of the washing machine, the device, the equipment, the storage medium and the program product provided by the embodiments of the present application can obtain the water level change frequency of the washing machine water containing barrel in a preset time period and the water level height of the washing machine water containing barrel at the end of the preset time period; determine the abnormal type of the washing machine according to the water level change frequency and the preset change frequency, wherein the abnormal type includes a first abnormality and a second abnormality; determine the water level threshold according to the abnormal type of the washing machine; and perform abnormal processing on the washing machine according to the water level threshold and the water level height. The water level change frequency is used to determine the fault degree of the washing machine, and the water level threshold and the water level height are used to perform abnormal processing on the washing machine, so as to prevent water from overflowing from the water containing barrel, avoid water leakage, and improve the safety of the washing machine during use.

[0031] In addition to the technical problems solved by the embodiments of the present application described above, the technical features constituting the technical solutions and the beneficial effects brought by these technical features, other technical problems solved by the control method of the washing machine, the device, the equipment, the storage medium and the program product provided by the embodiments of the present application, other technical features included in the technical solutions and the beneficial effects brought by these technical features will be further described in detail in the specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 The application scenario provided by the embodiments of the present application is shown in the figure;

[0033] Figure 2 The flowchart of the control method of the washing machine provided by the embodiments of the present application is shown in the figure;

[0034] Figure 3 The schematic diagram of another control method of the washing machine provided by the embodiments of the present application is shown in the figure;

[0035] Figure 4 The schematic diagram of the relationship between the water level threshold and the minimum water level of the washing machine provided by the embodiments of the present application is shown in the figure;

[0036] Figure 5 The structure diagram of the control device of the washing machine provided by the embodiments of the present application is shown in the figure;

[0037] Figure 6A hardware structure schematic diagram of a control device of a washing machine provided by the embodiment of the application is shown. DETAILED DESCRIPTION

[0038] Firstly, those skilled in the art should understand that the embodiments are only used to explain the technical principles of the embodiment of the application, and are not intended to limit the protection scope of the embodiment of the application. Those skilled in the art can make adjustments as needed to adapt to specific application occasions.

[0039] Secondly, it should be noted that, in the description of the embodiment of the application, the terms indicating the direction or positional relationship such as "inner", "outer" and the like are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or member must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiment of the application.

[0040] In addition, it should be noted that, in the description of the embodiment of the application, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two members. Those skilled in the art can understand the specific meaning of the above terms in the embodiment of the application according to the specific circumstances.

[0041] In the related art, the actual water level in the washing machine water tank is usually detected by a liquid level sensor, and whether the washing machine water tank overflows is judged according to the actual water level and the preset water level, but if the water inlet valve is damaged to a large extent, the water flow is fast, and in the process of user processing, the water will still overflow the water tank, causing water leakage, so it will cause loss and safety hazards to the user.

[0042] Therefore, the control method, device, equipment, storage medium and program product of the washing machine provided by the embodiment of the application acquire the water level change frequency of the washing machine water tank in a preset time period and the water level height of the washing machine water tank at the end of the preset time period; determine the abnormal type of the washing machine according to the water level change frequency and the preset change frequency, wherein the abnormal type includes a first abnormality and a second abnormality; determine the water level threshold according to the abnormal type of the washing machine; and perform abnormal processing on the washing machine according to the water level threshold and the water level height. The water level change frequency is used to determine the fault degree of the washing machine, and the water level threshold and the water level height are used to perform abnormal processing on the washing machine to prevent water from overflowing from the water tank, avoid water leakage, and improve the safety of the washing machine during use.

[0043] The specific implementation of the embodiment of the application will be described below with reference to the accompanying drawings. Figure 1 The application common scene of the embodiment of the application is introduced.

[0044] Figure 1 The application scenario provided by the embodiment of the present application is shown in the figure. Please refer to Figure 1 The washing machine 100 includes a machine body 110 and a water tub 120 arranged in the machine body 110, wherein the water tub 120 is used to place clothes to be washed and water.

[0045] Since water is needed in the washing process, a water inlet (not shown in the figure) is arranged on the machine body 110, the water inlet can be connected with a water source outside, and a water inlet valve (not shown in the figure) is arranged in the water inlet to control the on-off of water.

[0046] In the following, the technical solutions shown in the present application are described in detail through specific embodiments. It should be noted that the following embodiments can exist independently or can be combined with each other, and for the same or similar content, the description is not repeated in different embodiments.

[0047] Figure 2 The flowchart of the control method of the washing machine provided by the embodiment of the present application is shown in the figure. Please refer to Figure 2 The method includes:

[0048] Step S201: obtaining the water level change frequency of the washing machine water tub in a preset time period and the water level height of the washing machine water tub at the end of the preset time period.

[0049] The execution subject in the embodiment of the present application can be a control device arranged in the washing machine, which can be realized by software or by the combination of software and hardware.

[0050] In this step, a liquid level sensor can be arranged in the washing machine to obtain the water level height in the washing machine water tub.

[0051] Exemplarily, the first water level height in the washing machine water tub in the first time can be obtained, and the second water level height in the washing machine water tub in the second time can be obtained, and according to the first time, the second time, the first water level height and the second water level height, the water level change frequency of the washing machine water tub is obtained, that is, the water level change frequency is equal to the ratio of the difference between the second water level height and the first water level height to the difference between the first time and the second time.

[0052] It should be noted that in the present embodiment, the preset time period can be understood as the difference between the second time and the first time, and the end of the preset time period can be understood as the second time.

[0053] Step S202: judging the abnormal type of the washing machine according to the water level change frequency and the preset change frequency, wherein the abnormal type includes a first abnormality and a second abnormality.

[0054] In the embodiment, the first anomaly represents that the damage degree of the water inlet valve is relatively serious, and a large amount of water enters the tub from the water inlet; and the second anomaly represents that the damage degree of the water inlet valve is relatively light, and a small amount of water enters the tub from the water inlet.

[0055] The preset change frequency can be preset and input by the user in advance.

[0056] Step S203: determining the water level threshold according to the anomaly type of the washing machine.

[0057] Because the corresponding safe water level threshold is different due to different anomaly types of the washing machine, in order to improve the accuracy of the control method, the water level threshold needs to be determined in a targeted manner.

[0058] The water level threshold can be a preset odor threshold preset and input by the user in advance, or can be obtained by querying after being communicatively connected with a local database or a cloud database.

[0059] Step S204: performing anomaly processing on the washing machine according to the water level threshold and the water level height.

[0060] When the water level height is greater than or equal to the water level threshold, the washing machine is processed abnormally, so that the water in the tub can be prevented from overflowing, and the safety and the user loss are improved.

[0061] The embodiment of the application obtains the water level change frequency of the tub of the washing machine in a preset time period and the water level height of the tub of the washing machine at the end of the preset time period; determines the anomaly type of the washing machine according to the water level change frequency and a preset change frequency, wherein the anomaly type includes a first anomaly and a second anomaly; determines the water level threshold according to the anomaly type of the washing machine; and performs anomaly processing on the washing machine according to the water level threshold and the water level height. The fault degree of the washing machine is determined by using the water level change frequency, and the washing machine is processed abnormally according to the water level threshold and the water level height to prevent water from overflowing from the tub, avoid water leakage, improve the safety of the washing machine during use, and reduce the user loss.

[0062] In Figure 2 On the basis of the embodiment shown in the figure, the following will be described in combination with Figure 3 The control method of the washing machine is described in detail.

[0063] Figure 3 Another schematic diagram of the control method of the washing machine provided by the embodiment of the application is shown in the figure. Please refer to Figure 3 The method comprises the following steps:

[0064] Step S301: obtaining the water level change frequency of the tub of the washing machine in a preset time period and the water level height of the tub of the washing machine at the end of the preset time period.

[0065] It should be noted that the execution process of step S301 can refer to the execution process of step S201, and will not be repeated here.

[0066] After obtaining the water level change frequency and the water level height in the washing machine's water tank at the end of the preset time period, it is necessary to determine the type of anomaly based on the water level change frequency and the preset change frequency.

[0067] For example, in step S302a: if the water level change frequency is greater than the preset change frequency, then the abnormality type of the washing machine is determined to be the first abnormality.

[0068] If the detected water level change frequency is relatively large, it indicates that the inlet valve is severely damaged and the water flow speed is relatively fast. In this case, the abnormality type of the washing machine can be identified as the first abnormality.

[0069] Step S302b: If the water level change frequency is less than the preset change frequency, then the abnormality type of the washing machine is determined to be the second abnormality.

[0070] If the detected water level change frequency is relatively small, it indicates that the damage to the inlet valve is relatively minor and the water flow speed is relatively slow. In this case, the abnormality type of the washing machine can be determined to be the second abnormality.

[0071] After determining the type of anomaly, the water level threshold needs to be determined based on the specific anomaly type. For example, step S303a: if the anomaly type is the first anomaly, then the water level threshold is determined to be the first water level threshold.

[0072] like Figure 4 As shown, in this step, the first water level threshold is less than the lowest water level that overflows from the water tank. Thus, if the water level is lower than the lowest water level C that overflows from the water tank at the end of the preset time period, the user can be notified to perform the operation, giving the user enough time to operate and improving safety.

[0073] Step S303b: If the anomaly type is the second anomaly, then the water level threshold is determined to be the second water level threshold, wherein the first water level threshold is lower than the second water level threshold.

[0074] In this step, compared to the first abnormality, the damage to the water inlet valve is less severe in the second abnormality state. Therefore, the first water level threshold can be lower than the second water level threshold. This allows the user to be notified in time to take action, giving the user enough time to deal with the washing machine malfunction and minimize the user's losses.

[0075] Step S304: Perform abnormal handling on the washing machine based on the water level threshold and water level height.

[0076] It should be noted that the execution process of step S304 can refer to the execution process of step S204, which will not be described here.

[0077] The embodiment determines whether the water level threshold is the first water level threshold or the second water level threshold according to different types of abnormalities, so that the timing of abnormal processing can be determined according to different situations, preventing the phenomenon of water leakage caused by improper processing timing, and improving the safety of the washing machine.

[0078] As a further improvement of step S204 and step S304 in the above embodiment, the control method further comprises:

[0079] At least one of the washing machine water tank drainage processing and the issuance of abnormal alarm information.

[0080] For example, when the washing machine is determined to be abnormal by comparing the water level change frequency of the washing machine water tank in the preset time period with the preset change frequency, and the end time of the preset time period with the water level threshold and the water level height, the washing machine is processed abnormally.

[0081] The abnormal processing can include opening the washing machine drainage device to drain the water in the washing machine water tank, preventing water overflow, and reducing user loss.

[0082] In addition, the abnormal processing can also issue an alarm information, which can prompt the user to process the abnormality of the washing machine, thereby improving the safety performance.

[0083] It should be noted that the abnormal processing includes any one of the drainage processing and the alarm processing, or can include both the drainage processing and the alarm processing, so as to provide double protection for the safety of the washing machine.

[0084] In some embodiments, the step of issuing an abnormal alarm information comprises:

[0085] The alarm information is sent to the user terminal, for example, the control system of the washing machine is in communication connection with the user terminal, and the user terminal can be a mobile phone. When the washing machine is abnormal, the alarm information can be displayed on the user terminal to remind the user that the washing machine is abnormal and urge the user to handle it in time. In this way, the user's loss can be reduced and the user experience can be improved.

[0086] Alternatively, the alarm information is issued by a preset alarm device of the washing machine, wherein the preset alarm device can be arranged on the body of the washing machine or at a certain position in the room.

[0087] In the embodiment, the preset alarm device can include at least one of a buzzer and an audible and light alarm, for example, the preset alarm device can be a buzzer, for another example, the alarm module includes an audible and light alarm, for another example, the preset alarm device can include a buzzer and an audible and light alarm at the same time, in this way, the alarm efficiency can be improved, and the user can be reminded to handle the abnormality of the washing machine in time.

[0088] Figure 5 A structure diagram of a control device of a washing machine is provided in the embodiment. The control device can be used in a washing machine. Please refer to Figure 5 The control device 10 of the washing machine can include an acquisition module 11, a first determination module 12, a second determination module 13 and a control module 14.

[0089] The acquisition module 11 is configured to acquire a water level change frequency of a tub of the washing machine in a preset time period and a water level height at an end time of the preset time period.

[0090] The first determination module 12 is configured to determine an abnormal type of the washing machine according to the change frequency and a preset change frequency, and the abnormal type includes a first abnormality and a second abnormality.

[0091] The second determination module 13 is configured to determine a water level threshold according to the abnormal type of the washing machine.

[0092] The control module 14 is configured to perform abnormal handling on the washing machine according to the water level threshold and the water level height.

[0093] The acquisition module 11, the first determination module 12, the second determination module 13 and the control module 14 are sequentially connected. The control device of the washing machine provided in the embodiment can execute the technical solutions shown in the above method embodiments, and the principles and beneficial effects are similar, which will not be repeated here.

[0094] In the embodiment, the control device of the washing machine can further include an alarm module 15, and the alarm module 15 is configured to initiate an alarm according to the water level threshold and the water level height.

[0095] The alarm module 15 can be arranged on a machine body of the washing machine or a user terminal, and the arrangement of the alarm module 15 can timely inform the user to handle the abnormality of the washing machine, reduce the loss of the user, and improve the user experience.

[0096] Figure 6 A hardware structure diagram of a control device of a washing machine is provided in the embodiment. Please refer to Figure 6The device 20 can include at least one processor 21 and a memory 22, wherein the processor 21 and the memory 22 can communicate; for example, the processor 21 and the memory 22 communicate through a communication bus 23, the memory 22 is configured to store a computer program, and the processor 21 is configured to invoke the computer program in the memory 22 to execute the control method of the washing machine shown in any method embodiment.

[0097] Optionally, the control device 20 of the washing machine can further include a communication interface, and the communication interface can include a transmitter and / or a receiver.

[0098] Optionally, the processor can be a central processing unit (CPU), and can also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), etc. The general-purpose processor can be a microprocessor or any conventional processor, etc. The steps of the method disclosed in combination with the embodiments of the present application can be directly embodied as hardware processor execution, or executed by a combination of hardware and software modules in the processor.

[0099] The embodiments of the present application provide a storage medium, and the storage medium stores computer execution instructions. When the processor executes the computer execution instructions, the control method of the washing machine described in any embodiment is implemented.

[0100] The embodiments of the present application further provide a program product, and the program product includes a computer program. When the processor executes the computer program, the control method described in any embodiment is implemented.

[0101] In several embodiments provided in the present application, it should be understood that the disclosed apparatus and method can be implemented by other manners. For example, the apparatus embodiments described above are only schematic, for example, the division of the units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units or components shown or discussed can be indirect coupling or communication connection through some interfaces, apparatuses or units, and can be electrical, mechanical or other forms.

[0102] The units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, i.e. may be located in one place, or may be distributed on multiple network units. Part or all of the units may be selected according to actual needs to achieve the purpose of the embodiment scheme.

[0103] In addition, the functional units in each embodiment of the present application can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware, or in the form of hardware plus software function unit.

[0104] The integrated unit realized in the form of software function unit can be stored in a computer readable storage medium. The software function unit stored in a storage medium includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute part of the steps of the method described in each embodiment of the present application. The storage medium mentioned above includes a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various program code storage media.

[0105] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above functional modules is taken as an example, and in actual application, the above functions can be completed by different functional modules according to needs, i.e. the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. The specific working process of the device described above can refer to the corresponding process in the foregoing method embodiments, which will not be described here.

[0106] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A control method of a washing machine, characterized by, The method comprises: acquiring a water level change frequency of a washing machine water tank in a preset time period and a water level height of the washing machine water tank at an end time of the preset time period; judging an abnormal type of the washing machine according to the water level change frequency and a preset change frequency, wherein the abnormal type comprises a first abnormal type and a second abnormal type, the first abnormal type represents a serious damage degree of a water inlet valve, and the second abnormal type represents a light damage degree of the water inlet valve; determining a water level threshold according to the abnormal type of the washing machine; performing an abnormal treatment on the washing machine according to the water level threshold and the water level height The judging of the abnormal type of the washing machine according to the water level change frequency and the preset change frequency comprises: if the water level change frequency is greater than the preset change frequency, judging that the abnormal type of the washing machine is the first abnormal type; if the water level change frequency is less than the preset change frequency, judging that the abnormal type of the washing machine is the second abnormal type.

2. The method of claim 1, wherein, The determining of the water level threshold according to the abnormal type comprises: if the abnormal type is the first abnormal type, determining that the water level threshold is a first water level threshold; if the abnormal type is the second abnormal type, determining that the water level threshold is a second water level threshold, wherein the first water level threshold is lower than the second water level threshold.

3. The method according to claim 1 or 2, characterized in that, The performing of the abnormal treatment on the washing machine according to the water level threshold and the water level height comprises: if the water level height is higher than the water level threshold, performing the abnormal treatment on the washing machine.

4. The method according to claim 1 or 2, characterized in that, The performing of the abnormal treatment on the washing machine comprises: at least one of a draining treatment on the washing machine water tank and an abnormal alarm information sending.

5. The method of claim 4, wherein, The abnormal alarm information sending comprises: sending an alarm information to a user terminal or sending an alarm information through a preset alarm device of the washing machine.

6. A control device for a laundry machine, characterized in that, The device comprises: an acquisition module, configured to acquire a water level change frequency of a washing machine water tank in a preset time period and a water level height of the washing machine water tank at an end time of the preset time period; a first determination module, configured to judge an abnormal type of the washing machine according to the water level change frequency and a preset change frequency, wherein the abnormal type comprises a first abnormal type and a second abnormal type, the first abnormal type represents a serious damage degree of a water inlet valve, and the second abnormal type represents a light damage degree of the water inlet valve; a second determination module, configured to determine a water level threshold according to the abnormal type of the washing machine; a control module, configured to perform an abnormal treatment on the washing machine according to the water level threshold and the water level height. The first determination module is specifically configured to: if the water level change frequency is greater than the preset change frequency, judging that the abnormal type of the washing machine is the first abnormal type; if the water level change frequency is less than the preset change frequency, judging that the abnormal type of the washing machine is the second abnormal type.

7. The apparatus of claim 6, wherein, The device further comprises an alarm module, configured to send an alarm according to the water level threshold and the water level height.

8. An apparatus, comprising: The device comprises at least one processor and a memory, and the memory stores computer execution commands. The at least one processor executes the computer-executed instructions stored in the memory, so that the at least one processor executes the control method of any one of claims 1-5.

9. A storage medium, characterized by The storage medium stores computer-executed instructions, and when a processor executes the computer-executed instructions, the control method of the washing machine of any one of claims 1-5 is implemented.

10. A program product, characterized by The computer program is executed by a processor to implement the control method of any one of claims 1-5.

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