CN108683981B - Speaker drainage method, device, electronic device, and storage medium for electronic equipment - Google Patents

Abstract

The present invention is applicable to the technical field of electronic equipment, and provides a speaker drainage method, device, electronic equipment and storage medium of an electronic equipment. The method comprises: when a request for draining the speaker of the electronic equipment is detected, controlling the speaker to output an audio of a first preset frequency; obtaining the current working current of the speaker; when the current working current exceeds the normal working current of the speaker, draining the speaker, thereby controlling the speaker to output the audio of the first preset frequency and accurately determining the drainage timing of the speaker when the current working current of the speaker exceeds the normal working current of the speaker, and then automatically draining the speaker, thereby improving the intelligence level of the electronic equipment and reducing the energy consumption caused by the drainage device of the electronic equipment being mistakenly activated.

Description

Speaker drainage method, device, electronic device, and storage medium for electronic equipment

technical field

The invention belongs to the technical field of electronic equipment, and in particular relates to a speaker drainage method, device, electronic equipment and storage medium for electronic equipment.

Background technique

With the continuous advancement of science and technology, at present, the waterproof level of electronic devices such as mobile terminals is getting higher and higher, and many electronic products have waterproof functions. In the traditional waterproof design of electronic equipment, electronic equipment manufacturers often consider how to prevent water from entering the equipment, and speakers rely on air vibration to generate sound, so there is a certain conflict between the highly waterproof design of speakers and equipment.

In order to solve this problem, some electronic equipment manufacturers or designers have proposed the post-draining function of the speaker while improving the waterproof function of the speaker, that is, the user can automatically control the vibration of the electronic equipment after feeling that the speaker of the electronic equipment has entered the water. Squeeze the moisture out. However, since the user cannot accurately determine whether the electronic device has entered water, and needs to manually drain the water after self-judging the water has entered, the probability of erroneous drainage of the electronic device is increased, thereby reducing the intelligence of the electronic device.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a speaker drainage method, device, electronic device and storage medium for electronic equipment, which aims to solve the problem that the degree of intelligence of the electronic equipment is reduced because the electronic equipment in the prior art cannot accurately determine the drainage time of the speaker. .

In one aspect, the present invention provides a method for draining a speaker of an electronic device, the method comprising the following steps:

When a request for draining the speaker of the electronic device is detected, controlling the speaker to output audio of a first preset frequency;

Obtain the current working current of the speaker;

When the current operating current exceeds the normal operating current of the speaker, the speaker is drained.

In another aspect, the present invention provides a speaker drainage device for electronic equipment, the device comprising:

an audio output unit, configured to control the speaker to output audio of a first preset frequency when a request for draining the speaker of the electronic device is detected;

a current acquisition unit for acquiring the current operating current of the speaker; and

The speaker drainage unit is used for draining the speaker when the current operating current exceeds the normal operating current of the speaker.

In another aspect, the present invention also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor is implemented when the processor executes the computer program The steps of the method as described above.

In another aspect, the present invention also provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, implements the steps of the above-mentioned method.

When a request for draining the speaker of the electronic device is detected, the present invention controls the speaker to output the audio frequency of the first preset frequency, obtains the current operating current of the speaker, and drains the speaker when the current operating current exceeds the normal operating current of the speaker. Therefore, by controlling the speaker to output the audio frequency of the first preset frequency, when the current operating current of the speaker exceeds the normal operating current of the speaker, the drainage timing of the speaker is accurately determined, and the speaker is automatically drained, thereby improving the intelligence of the electronic device. , while reducing the energy consumption caused by the wrong start of the drainage device of the electronic equipment.

Description of drawings

Fig. 1 is the realization flow chart of the speaker drainage method of the electronic device provided by the first embodiment of the present invention;

Fig. 2 is the realization flow chart of the speaker drainage method of the electronic device provided by the second embodiment of the present invention;

3 is a schematic structural diagram of a speaker drainage device of an electronic device provided in Embodiment 3 of the present invention;

FIG. 4 is a schematic structural diagram of a speaker drainage device of an electronic device according to Embodiment 4 of the present invention; and

FIG. 5 is a schematic structural diagram of an electronic device provided in Embodiment 5 of the present invention.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

The specific implementation of the present invention is described in detail below in conjunction with specific embodiments:

Example 1:

FIG. 1 shows the implementation process of the speaker drainage method of the electronic device provided by the first embodiment of the present invention. For the convenience of description, only the parts related to the embodiment of the present invention are shown, and the details are as follows:

In step S101, when a request for draining the speaker of the electronic device is detected, the speaker is controlled to output audio of a first preset frequency.

The embodiments of the present invention are suitable for electronic devices with speakers, and are especially suitable for mobile devices or wearable devices such as mobile phones, tablet computers, and wristbands, so that after these mobile devices or wearable devices carried by the user come out of the water, they are discharged into the water. water in the speakers of these mobile or wearable devices. The request for draining the speaker of the electronic device may be triggered by a preset operation of the electronic device by the user, or may be triggered by other preset events. Preferably, it is triggered by an activity event or a work-rest event preset by a user, so that the drainage request is only detected during the occurrence time period of these activity events or work-rest events, so as to reduce the energy consumption of the electronic device. For example, after the user has set an activity schedule for a week, according to the user's activity schedule, the drain request can be detected only during the time periods when the user gets up, takes a shower, sleeps, and swims. In this embodiment of the present invention, the first preset frequency may be an ultra-low frequency, so that when the speaker outputs audio of this frequency, it will not cause interference to the user or introduce noise.

In step S102, obtain the current operating current of the speaker;

In step S103, when the current operating current exceeds the normal operating current of the speaker, the speaker is drained.

In the embodiment of the present invention, in the case that the speaker of the electronic device does not enter the water, the normal operating current of the speaker at the first preset frequency is obtained, so as to obtain the normal operating current of the speaker during normal operation. Since the normal operating current of the speaker may vary at different temperatures, temperatures or air pressures, optionally, the normal operating current may be a range. When the current operating current exceeds the normal operating current of the speaker, it indicates that the speaker's normal operating current The current operating current exceeds the upper limit of this range. At this time, it is determined that the speaker needs to be drained, so as to realize the accurate determination of the drainage timing, improve the intelligence of the electronic equipment, and reduce the false activation of the drainage device of the electronic equipment. resulting energy consumption.

Further, obtain the water inlet working current range of the speaker under different water inlet conditions of the speaker under the first preset frequency, so that preferably, when the current operating current exceeds the normal operating current of the speaker, it is further judged whether the current operating current of the speaker is located in the speaker. Only when the current working current is within the water inlet working current range of the loudspeaker, can the loudspeaker be finally drained, which further improves the determination accuracy of the drainage timing and reduces the unnecessary drainage of electronic equipment to the user. interference, and improve the intelligence of electronic equipment.

Preferably, when the speaker is drained, the vibration motor in the electronic device is controlled to vibrate to discharge the moisture in the speaker, so that the hardware complexity of the electronic device does not need to be increased when the speaker is automatically drained, and the drainage of the speaker is simplified. process.

Preferably, when the speaker is drained, the speaker is controlled to output the audio frequency of the second preset frequency to generate corresponding sound waves to drain the moisture in the speaker, so that the hardware complexity of the electronic device does not need to be increased when the speaker is automatically drained. , which simplifies the draining process of the speaker.

Embodiment 2:

FIG. 2 shows the implementation process of the speaker drainage method of the electronic device provided by the second embodiment of the present invention. For the convenience of description, only the part related to the embodiment of the present invention is shown, and the details are as follows:

In step S201, it is detected whether the touched area of the touch screen of the electronic device exceeds a preset area threshold.

The embodiments of the present invention are applicable to electronic devices with touch screens and speakers, and are especially applicable to mobile devices or wearable devices such as mobile phones, tablet computers, and wristbands, so that after these mobile devices or wearable devices carried by the user come out of the water, Drain water that gets into the speakers of these mobile or wearable devices. In this embodiment of the present invention, the area threshold may be set according to the size of the touch screen of the electronic device, for example, may be set to 90% of the size of the touch screen, or directly set to the size of the touch screen of the electronic device.

In step S202, when it is detected that the touched area of the touch screen of the electronic device exceeds the preset area threshold, it is detected whether the touched area of the touch screen of the electronic device does not exceed the preset area threshold.

In step S203, when it is detected that the touched area of the touch screen does not exceed the preset area threshold and the duration exceeds the first preset duration, a request for draining the speaker of the electronic device is generated.

When the touch screen of the electronic device touches water or penetrates into the water, a large-area touch or induction will be detected. Therefore, in this embodiment of the present invention, according to whether the touched area of the touch screen of the electronic device exceeds a preset area threshold, it can be determined that the electronic device Whether the device's touchscreen is in contact with or submerged in water. When it is detected that the touched area of the touch screen of the electronic device exceeds the preset area threshold, it indicates that the touch screen of the electronic device has touched or penetrated into water. The area threshold is set to judge whether the touch screen of the electronic device is taken out or left out of the water after touching or intruding into the water.

When it is detected that the touched area of the touch screen of the electronic device does not exceed the preset area threshold, it indicates that the touch screen of the electronic device has been taken out or left the water after it has touched or penetrated into the water. The speaker performs a drainage request to control the speaker to output the audio of the first preset frequency, so as to realize the automatic triggering of the speaker drainage after the electronic device is taken out or out of the water, which improves the real-time performance of the speaker drainage and ensures that the speaker is not flooded. damage.

Further preferably, when it is detected that the touched area of the touch screen of the electronic device does not exceed the preset area threshold, the duration of the touched area of the touch screen that does not exceed the preset area threshold is monitored, and when it is detected that the touched area of the touch screen does not exceed the preset area threshold. When the duration of the set area threshold exceeds the first preset duration, a request for draining the speaker of the electronic device is generated, so that only after the touch screen of the electronic device has been in contact with or penetrated into water, and the electronic device has been taken out or The request for draining the speaker of the electronic device is generated only when the duration of leaving the water exceeds the first preset duration, thereby ensuring that the speaker is drained only when the electronic device has been taken out or leaving the water, thereby improving the draining effect of the speaker.

Considering that the touch screen of the electronic device may also be detected as a large-area touch or sensing in other situations, for example, when the user presses the touch screen of the electronic device with the palm, in this embodiment of the present invention, when the touch screen of the electronic device is detected When the touched area of the touch screen exceeds the preset area threshold, further obtain the duration of the touched area of the touch screen exceeding the preset area threshold, and only when the duration exceeds the second preset duration or later, detect whether the touched area of the touch screen of the electronic device is not. It does not exceed the preset area threshold, thereby determining whether the speaker enters the water through multiple detections, which further improves the accuracy of determining the timing of the speaker draining.

In step S204, when a request for draining the speaker of the electronic device is detected, the speaker is controlled to output audio of the first preset frequency.

In step S205, the current operating current of the speaker is obtained.

In step S206, when the current operating current exceeds the normal operating current of the speaker, the speaker is drained.

In the embodiment of the present invention, in the case that the speaker of the electronic device does not enter the water, the normal operating current of the speaker at the first preset frequency is obtained, so as to obtain the normal operating current of the speaker during normal operation. Since the normal operating current of the speaker may vary at different temperatures, temperatures or air pressures, optionally, the normal operating current may be a range. When the current operating current exceeds the normal operating current of the speaker, it indicates that the speaker's normal operating current The current operating current exceeds the upper limit of this range. At this time, it is determined that the speaker needs to be drained, so as to realize the accurate determination of the drainage timing, improve the intelligence of the electronic equipment, and reduce the false activation of the drainage device of the electronic equipment. resulting energy consumption.

Further, obtain the water inlet working current range of the speaker under different water inlet conditions of the speaker under the first preset frequency, so that preferably, when the current operating current exceeds the normal operating current of the speaker, it is further judged whether the current operating current of the speaker is located in the speaker. Only when the current working current is within the water inlet working current range of the loudspeaker, can the loudspeaker be finally drained, which further improves the determination accuracy of the drainage timing and reduces the unnecessary drainage of electronic equipment to the user. interference, and improve the intelligence of electronic equipment.

Preferably, when the speaker is drained, the vibration motor in the electronic device is controlled to vibrate to discharge the moisture in the speaker, so that the hardware complexity of the electronic device does not need to be increased when the speaker is automatically drained, and the drainage of the speaker is simplified. process.

Preferably, when the speaker is drained, the speaker is controlled to output the audio frequency of the second preset frequency to generate corresponding sound waves to drain the moisture in the speaker, so that the hardware complexity of the electronic device does not need to be increased when the speaker is automatically drained. , which simplifies the draining process of the speaker.

Embodiment three:

FIG. 3 shows the structure of the speaker drainage device of the electronic device provided by the third embodiment of the present invention. For convenience of description, only the parts related to the embodiment of the present invention are shown. The speaker drainage device includes an audio output unit 31, a current acquisition unit 32 and speaker drain unit 33, wherein:

The audio output unit 31 is configured to control the speaker to output audio of a first preset frequency when a request for draining the speaker of the electronic device is detected.

The embodiments of the present invention are suitable for electronic devices with speakers, and are especially suitable for mobile devices or wearable devices such as mobile phones, tablet computers, and wristbands, so that after these mobile devices or wearable devices carried by the user come out of the water, they are discharged into the water. Water from these mobile or wearable speakers. The request for draining the speaker of the electronic device may be triggered by a preset operation of the electronic device by the user, or may be triggered by other preset events. Preferably, it is triggered by activity events or work-rest events preset by the user, so that the drainage request is only detected in the time period set by these activity events or work-rest events, thereby reducing the energy consumption of the electronic device. For example, after the user has set an activity schedule for a week, the drain request can be detected only when the user gets up, takes a shower, sleeps, and swims according to the user's activity schedule. In this embodiment of the present invention, the first preset frequency may be an ultra-low frequency, so that when the speaker outputs audio of this frequency, it will not cause interference to the user or introduce noise.

The current acquisition unit 32 is used to acquire the current working current of the speaker.

The speaker drainage unit 33 is used for draining the speaker when the current operating current exceeds the normal operating current of the speaker.

In the embodiment of the present invention, in the case that the speaker of the electronic device does not enter the water, the normal operating current of the speaker at the first preset frequency is obtained, so as to obtain the normal operating current of the speaker during normal operation. Since the normal operating current of the speaker may vary at different temperatures, temperatures or air pressures, optionally, the normal operating current may be a range. When the current operating current exceeds the normal operating current of the speaker, it indicates that the speaker's normal operating current The current operating current exceeds the upper limit of this range. At this time, it is determined that the speaker needs to be drained, so as to realize the accurate determination of the drainage timing, improve the intelligence of the electronic equipment, and reduce the false activation of the drainage device of the electronic equipment. resulting energy consumption.

Further, obtain the water inlet working current range of the speaker under different water inlet conditions of the speaker under the first preset frequency, so that preferably, when the current operating current exceeds the normal operating current of the speaker, it is further judged whether the current operating current of the speaker is located in the speaker. Only when the current working current is within the water inlet working current range of the loudspeaker, can the loudspeaker be finally drained, which further improves the determination accuracy of the drainage timing and reduces the unnecessary drainage of electronic equipment to the user. interference, and improve the intelligence of electronic equipment.

Preferably, when the speaker is drained, the vibration motor in the electronic device is controlled to vibrate to discharge the moisture in the speaker, so that the hardware complexity of the electronic device does not need to be increased when the speaker is automatically drained, and the drainage of the speaker is simplified. process.

Preferably, when the speaker is drained, the speaker is controlled to output the audio frequency of the second preset frequency to generate corresponding sound waves to drain the moisture in the speaker, so that the hardware complexity of the electronic device does not need to be increased when the speaker is automatically drained. , which simplifies the draining process of the speaker.

In the embodiment of the present invention, each unit of the speaker drainage device may be implemented by corresponding hardware or software units, and each unit may be an independent software and hardware unit, or may be integrated into a software and hardware unit, which is not intended to limit the present invention. .

Embodiment 4:

FIG. 4 shows the structure of the speaker drainage device of the electronic device provided by the fourth embodiment of the present invention. For the convenience of description, only the parts related to the embodiment of the present invention are shown, including:

The first touch detection unit 41 is used to detect whether the touched area of the touch screen of the electronic device exceeds a preset area threshold;

The second touch detection unit 42 is configured to detect whether the touched area of the touch screen of the electronic device does not exceed the preset area threshold when it is detected that the touched area of the touch screen of the electronic device exceeds the preset area threshold;

a request generating unit 43, configured to generate a request for draining the speaker of the electronic device when the duration of the touched area of the touch screen that does not exceed the preset area threshold exceeds the first preset duration;

The audio output unit 44 is configured to control the speaker to output audio of the first preset frequency when a request for draining the speaker of the electronic device is detected;

a current acquisition unit 45 for acquiring the current operating current of the speaker; and

The speaker drainage unit 46 is used for draining the speaker when the current operating current exceeds the normal operating current of the speaker.

Preferably, the speaker drainage unit 46 includes:

The first drainage unit 461 is used to control the vibration motor in the electronic device to vibrate, so as to discharge the moisture in the speaker.

Further, the speaker drainage unit 46 may also include:

The second drainage unit 462 is used to control the speaker to output audio frequency of the second preset frequency, so as to generate corresponding sound waves and to discharge the moisture in the speaker.

Further preferably, the speaker drainage device also includes:

The time acquisition unit is used to acquire the duration of the touched area of the touch screen exceeding the preset area threshold. When the duration exceeds the second preset duration, the first touch detection unit 42 is triggered to detect whether the touched area of the touch screen of the electronic device does not exceed the preset area. Set the area threshold.

In the embodiment of the present invention, each unit of the speaker drainage device may be implemented by corresponding hardware or software units, and each unit may be an independent software and hardware unit, or may be integrated into a software and hardware unit, which is not intended to limit the present invention. . For the specific implementation of each unit, reference may be made to the description of the second embodiment, which will not be repeated here.

Embodiment 5:

FIG. 5 shows the structure of the electronic device provided by Embodiment 5 of the present invention. For convenience of description, only the part related to the embodiment of the present invention is shown.

The electronic device 5 of the embodiment of the present invention includes a processor 50 , a memory 51 , and a computer program 52 stored in the memory 51 and executable on the processor 50 . When the processor 50 executes the computer program 52, the steps in each of the above-mentioned embodiments of the speaker drainage method are implemented, for example, steps S101 to S103 shown in FIG. 1 . Alternatively, when the processor 50 executes the computer program 52, the functions of the units in the above-mentioned various apparatus embodiments, for example, the functions of the units 31 to 33 shown in FIG. 3 are realized.

In the embodiment of the present invention, when a request for draining the speaker of the electronic device is detected, the speaker is controlled to output the audio frequency of the first preset frequency, and the current operating current of the speaker is obtained, and when the current operating current exceeds the normal operating current of the speaker , the speaker is drained, so that by controlling the speaker to output the audio frequency of the first preset frequency, when the current working current of the speaker exceeds the normal operating current of the speaker, accurately determine the draining time of the speaker, and then automatically drain the speaker, which improves the electronic The intelligent level of the equipment also reduces the energy consumption caused by the incorrect activation of the drainage device of the electronic equipment.

The electronic device in the embodiment of the present invention may be a mobile device, such as a mobile phone, a tablet computer, and a wristband, or a wearable device. For the steps implemented when the processor 50 in the electronic device 5 executes the computer program 52 to implement the method for draining the speaker, reference may be made to the description of the foregoing method embodiments, which will not be repeated here.

Embodiment 5:

In an embodiment of the present invention, a computer-readable storage medium is provided, and the computer-readable storage medium stores a computer program. When the computer program is executed by a processor, the steps in the above-mentioned embodiment of the speaker drainage method are implemented. For example, FIG. Steps S101 to S103 shown in 1. Or, when the computer program is executed by the processor, the functions of the units in the above-mentioned apparatus embodiments, for example, the functions of the units 31 to 33 shown in FIG. 3 , are implemented.

In the embodiment of the present invention, when a request for draining the speaker of the electronic device is detected, the speaker is controlled to output the audio frequency of the first preset frequency, and the current operating current of the speaker is obtained, and when the current operating current exceeds the normal operating current of the speaker , the speaker is drained, so that by controlling the speaker to output the audio frequency of the first preset frequency, when the current working current of the speaker exceeds the normal operating current of the speaker, accurately determine the draining time of the speaker, and then automatically drain the speaker, which improves the electronic The intelligent level of the equipment also reduces the energy consumption caused by the incorrect activation of the drainage device of the electronic equipment.

The computer-readable storage medium of the embodiments of the present invention may include any entity or device capable of carrying computer program codes, recording medium, for example, memory such as ROM/RAM, magnetic disk, optical disk, flash memory, and the like.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the protection of the present invention. within the range.

Claims (8)

1. A method of draining a speaker of an electronic device, the method comprising the steps of:

when a request for draining water of a loudspeaker of electronic equipment is detected, controlling the loudspeaker to output audio with a first preset frequency, wherein the first preset frequency is an ultra-low frequency;

acquiring the current working current of the loudspeaker;

draining the loudspeaker when the current working current exceeds the normal working current of the loudspeaker;

before the step of controlling the speaker to output the audio of the first preset frequency, the method further includes:

detecting whether the touched area of a touch screen of the electronic equipment exceeds a preset area threshold value;

when the fact that the touched area of the touch screen of the electronic equipment exceeds the preset area threshold is detected, whether the touched area of the touch screen of the electronic equipment does not exceed the preset area threshold is detected;

when detecting that the duration of the touch area of the touch screen does not exceed the preset area threshold exceeds a first preset duration, generating the request for draining water for the loudspeaker of the electronic equipment;

before the step of detecting whether the touched area of the touch screen of the electronic device does not exceed the preset area threshold when it is detected that the touched area of the touch screen of the electronic device exceeds the preset area threshold, the method further includes:

acquiring the duration of the touch area of the touch screen exceeding the preset area threshold;

and when the duration time exceeds a second preset duration time, skipping to the step of detecting whether the touched area of the touch screen of the electronic equipment does not exceed the preset area threshold value.

2. The method of claim 1, wherein the step of draining the speaker comprises:

controlling a vibration motor in the electronic device to vibrate to discharge moisture in the speaker.

3. The method of claim 1, wherein the step of draining the speaker comprises:

and controlling the loudspeaker to output audio frequency of a second preset frequency so as to generate corresponding sound waves and discharge moisture in the loudspeaker.

4. A speaker drainage apparatus of an electronic device, the apparatus comprising:

the device comprises an audio output unit, a control unit and a control unit, wherein the audio output unit is used for controlling a loudspeaker of the electronic equipment to output audio with a first preset frequency when a request for draining water of the loudspeaker of the electronic equipment is detected, and the first preset frequency is an ultra-low frequency;

the current acquisition unit is used for acquiring the current working current of the loudspeaker; and

the loudspeaker drainage unit is used for draining water for the loudspeaker when the current working current exceeds the normal working current of the loudspeaker;

the device further comprises:

the first touch detection unit is used for detecting whether the touched area of the touch screen of the electronic equipment exceeds a preset area threshold value or not;

the second touch detection unit is used for detecting whether the touched area of the touch screen of the electronic equipment does not exceed the preset area threshold value or not when the fact that the touched area of the touch screen of the electronic equipment exceeds the preset area threshold value is detected; and

the request generation unit is used for generating the request for draining water for the loudspeaker of the electronic equipment when the fact that the duration of the touch area of the touch screen does not exceed the preset area threshold value exceeds a first preset duration is detected;

the device further comprises:

the time acquisition unit is used for acquiring the duration that the touched area of the touch screen exceeds the preset area threshold, and when the duration exceeds a second preset duration, the first touch detection unit is triggered to detect whether the touched area of the touch screen of the electronic equipment does not exceed the preset area threshold.

5. The apparatus of claim 4, wherein the speaker drain unit comprises:

and the first water drainage unit is used for controlling a vibration motor in the electronic equipment to vibrate so as to drain water in the loudspeaker.

6. The apparatus of claim 4, wherein the speaker drain unit comprises:

and the second water discharging unit is used for controlling the loudspeaker to output audio frequency of a second preset frequency so as to generate corresponding sound waves and discharge water in the loudspeaker.

7. An electronic device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the steps of the method according to any of claims 1 to 3 are implemented when the computer program is executed by the processor.

8. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 3.

Images