A laundry detection method and device, a laundry care machine and a storage medium

Abstract

The embodiment of the application discloses a kind of clothes detection method, device, clothes care machine and storage medium, it is related to ultrasonic detection technical field.The specific, by obtaining the echo signal (echo signal is the signal of ultrasonic wave signal sent by open ultrasonic transceiver being reflected after obstacle) received in preset duration in clothes care machine open ultrasonic transceiver;Further determine at least one pulse number, the pulse number is the number of echo signal detected in one sub duration by the open ultrasonic transceiver, the preset duration includes at least two sub duration;In the case where at least one pulse number meets preset condition, it is determined that there is clothes in the region corresponding to open ultrasonic transceiver.The embodiment of the application carries out clothes detection according to the characteristics that the pulse number corresponding to different number of clothes is in fixed number range, can avoid the interference signal of remaining period to influence clothes detection result, improves clothes detection precision.

Description

Technical Field

[0001] This application relates to the field of ultrasonic testing technology, and in particular to a method, apparatus, garment care machine, and storage medium for detecting clothing. Background Technology

[0002] Existing garment care machines can determine whether there are clothes hanging on the hangers inside the machine before processing the garments, thus determining the number of clothes inside. In future models, the garment care machine can adjust its operating time based on the determined number of clothes to effectively control power consumption and improve the user experience.

[0003] Currently, clothing care machines detect whether a hanger contains clothing by controlling the transmitting end of a closed ultrasonic detection device to send an ultrasonic signal, thereby determining the echo time of the echo signal received by the receiving end of the closed ultrasonic detection device, and determining which hanger contains clothing based on the echo time.

[0004] However, the ultrasonic signals emitted by the transmitter of a closed ultrasonic testing device can easily be transmitted to the receiver through the probe housing structure and circuitry, interfering with the reception of the echo signal and thus affecting the accuracy of clothing detection, leading to misjudgments. Therefore, the above method has low accuracy in determining whether clothing is hanging on a hanger. Summary of the Invention

[0005] This application provides a clothing detection method, apparatus, clothing care machine, and storage medium, which solves the problem of low accuracy in clothing detection by existing ultrasonic detection devices.

[0006] In a first aspect, embodiments of this application provide a clothing detection method applied to a garment care machine including an open-type ultrasonic transceiver. Specifically, the clothing detection method includes: acquiring echo signals received by the open-type ultrasonic transceiver within a preset time period (the preset time period is proportional to the inner depth of the garment care machine); then determining at least one pulse count, the pulse count being the number of echo signals detected by the open-type ultrasonic transceiver in a sub-time period, the preset time period including at least two sub-time periods; subsequently, if the at least one pulse count satisfies a preset condition, determining that clothing exists in the area corresponding to the open-type ultrasonic transceiver. Here, the echo signal is the signal after the ultrasonic signal transmitted by the open-type ultrasonic transceiver is reflected by an obstacle.

[0007] In practical applications, the number of pulses in the echo signal varies depending on whether clothing is present in the corresponding detection area within the garment care machine's casing. Based on this, the solution provided in this application detects clothing by measuring the number of pulses in the echo signal corresponding to the specified sub-time period. This approach comprehensively considers the interference effects of different time periods on the echo signal, avoiding the influence of interference signals from other time periods on the clothing detection results, thereby improving the accuracy of clothing detection.

[0008] Furthermore, due to the effective improvement in the detection accuracy of clothing, the number of clothes in the clothing care machine can be further determined during subsequent clothing care. Based on the accurately detected number of clothes, the running time of the clothing care machine can be adaptively adjusted to ensure that the running time of the clothing care machine is accurately adjusted, avoiding energy waste caused by excessive running time, optimizing the energy efficiency management effect of the clothing care machine, and improving the user experience.

[0009] In one possible design, the at least two sub-durations include at least two of a first sub-duration, a second sub-duration, and a third sub-duration, with the second sub-duration following the first sub-duration and the third sub-duration following the second sub-duration; the number of echo signals detected by the open ultrasonic transceiver in the first sub-duration is the first pulse count, the number of echo signals detected in the second sub-duration is the second pulse count, and the number of echo signals detected in the third sub-duration is the third pulse count; the at least one pulse count includes at least one of the first pulse count, the second pulse count, and the third pulse count.

[0010] The aforementioned "preset conditions" include: when at least one pulse number includes a first pulse number, the first pulse number is greater than or equal to a first threshold; when at least one pulse number includes a second pulse number, the second pulse number is greater than or equal to a second threshold; and when at least one pulse number includes a third pulse number, the third pulse number is less than or equal to a third threshold.

[0011] In one possible design, the at least one number of pulses includes a first number of pulses, a second number of pulses, and a third number of pulses; the clothing detection method further includes:

[0012] If the number of first pulses is less than the first threshold, the number of second pulses is less than the second threshold, and the number of third pulses is greater than the third threshold, it is determined that there is no clothing in the area corresponding to the open ultrasonic transceiver.

[0013] In one possible design, the at least one number of pulses includes a target number of pulses and a third number of pulses, wherein the target number of pulses includes a first number of pulses or a second number of pulses, and the clothing detection method further includes:

[0014] If the target pulse count includes the first pulse count, and the first pulse count is less than the fourth threshold and the third pulse count is greater than the third threshold, it is determined that there is no clothing in the area corresponding to the open ultrasonic transceiver; if the target pulse count includes the second pulse count, and the second pulse count is less than the fifth threshold and the third pulse count is greater than the third threshold, it is determined that there is no clothing in the area corresponding to the open ultrasonic transceiver.

[0015] In one possible design approach, the garment detection method also includes:

[0016] If clothing is found in the area corresponding to the open ultrasonic transceiver, the number of clothing items is determined to be one.

[0017] In a second aspect, embodiments of this application provide a clothing detection device applied to a garment care machine including an open-type ultrasonic transceiver. Specifically, the clothing detection device includes: an acquisition module for acquiring echo signals received by the open-type ultrasonic transceiver within a preset duration (the preset duration is proportional to the inner depth of the garment care machine); a detection module for determining at least one pulse count, the pulse count being the number of echo signals detected by the open-type ultrasonic transceiver within one sub-duration; and a determination module for determining that clothing exists in the area corresponding to the open-type ultrasonic transceiver if the at least one pulse count meets a preset condition. Here, the echo signal is the signal after the ultrasonic signal transmitted by the open-type ultrasonic transceiver is reflected by an obstacle, and the preset duration includes at least two sub-durations.

[0018] In one possible design, the at least two sub-durations include at least two of a first sub-duration, a second sub-duration, and a third sub-duration, wherein the second sub-duration follows the first sub-duration, and the third sub-duration follows the second sub-duration; the number of echo signals detected by the open-type ultrasonic transceiver in the first sub-duration is the first pulse count, the number of echo signals detected in the second sub-duration is the second pulse count, and the number of echo signals detected in the third sub-duration is the third pulse count; the at least one pulse count includes at least one of the first pulse count, the second pulse count, and the third pulse count.

[0019] The aforementioned "preset conditions" include: when at least one pulse number includes a first pulse number, the first pulse number is greater than or equal to a first threshold; when at least one pulse number includes a second pulse number, the second pulse number is greater than or equal to a second threshold; and when at least one pulse number includes a third pulse number, the third pulse number is less than or equal to a third threshold.

[0020] In one possible design, the at least one pulse number includes a first pulse number, a second pulse number, and a third pulse number, and the determining module is further configured to:

[0021] If the number of first pulses is less than the first threshold, the number of second pulses is less than the second threshold, and the number of third pulses is greater than the third threshold, it is determined that there is no clothing in the area corresponding to the open ultrasonic transceiver.

[0022] In one possible design, the at least one pulse number includes a target pulse number and a third pulse number, the target pulse number including a first pulse number or a second pulse number, and the determining module is further configured to:

[0023] If the target pulse count includes the first pulse count, and the first pulse count is less than the fourth threshold and the third pulse count is greater than the third threshold, it is determined that there is no clothing in the area corresponding to the open ultrasonic transceiver; if the target pulse count includes the second pulse count, and the second pulse count is less than the fifth threshold and the third pulse count is greater than the third threshold, it is determined that there is no clothing in the area corresponding to the open ultrasonic transceiver.

[0024] The determination module is also used to: determine the number of clothes as one if it is determined that there are clothes in the area corresponding to the open ultrasonic transceiver.

[0025] In a third aspect, embodiments of this application provide a garment care machine, comprising:

[0026] An open-type ultrasonic transceiver, a memory, and one or more processors, wherein the open-type ultrasonic transceiver is connected to the processors;

[0027] The memory is used to store computer-executed instructions;

[0028] The processor is used to invoke the computer to execute instructions and control the operation of the open ultrasonic transceiver, so that when the garment care machine is running, it executes the computer to execute instructions to implement the garment detection method as described in the first aspect.

[0029] In a fourth aspect, embodiments of this application provide a computer-readable storage medium including computer instructions that, when executed on a garment care machine, cause the garment care machine to perform the garment detection method as described in the first aspect.

[0030] Fifthly, embodiments of this application provide a computer program product including computer instructions that, when executed on a garment care machine, cause the garment care machine to perform the garment detection method as described in the first aspect and any possible design thereof.

[0031] For a detailed description of the second to fifth aspects and their various implementations in the embodiments of this application, please refer to the detailed description in the first aspect and its various implementations; and for a detailed description of the beneficial effects of the second to fifth aspects and their various implementations, please refer to the beneficial effect analysis in the first aspect and its various implementations, which will not be repeated here.

[0032] These or other aspects of the embodiments of this application will become more apparent in the following description. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of the garment care machine in the embodiments of this application;

[0034] Figure 2 This is a schematic diagram showing the connection between the clothing detection device and the ultrasonic plate in an embodiment of this application;

[0035] Figure 3 This is a flowchart of a clothing detection method provided in an embodiment of this application;

[0036] Figure 4 This is a schematic diagram of an echo signal in an embodiment of this application;

[0037] Figure 5 This is a schematic diagram of an echo signal in an embodiment of this application;

[0038] Figure 6 This is a flowchart of the garment detection process of the garment care machine in this application embodiment;

[0039] Figure 7 This is a schematic diagram of the structure of a clothing detection device provided in an embodiment of this application;

[0040] Figure 8 This is a schematic diagram of the structural connection of a garment care machine provided in an embodiment of this application. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this application clearer, specific embodiments of this application will be described in further detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely for explaining this application and not for limiting it. It should also be noted that, for ease of description, only the parts relevant to this application are shown in the drawings, not all of them. Before discussing exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although the flowcharts describe operations (or steps) as sequential processes, many of these operations can be performed in parallel, concurrently, or simultaneously. Furthermore, the order of the operations can be rearranged. The process can be terminated when its operation is completed, but may also have additional steps not included in the drawings. The process can correspond to a method, function, procedure, subroutine, subprogram, etc.

[0042] It should be noted that in this application, relational terms such as "first" and "second" are used only to distinguish one entity, operation, or object from another entity, operation, or object, and do not necessarily require or imply any actual relationship or order between these entities, operations, or objects. For example, "first" and "second" in "first touch operation" and "second touch operation" are used to distinguish two interactive operations that touch the screen cover at different times. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, in the description of this application, unless otherwise stated, "multiple" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0043] This application provides a clothing detection method, which aims to determine whether clothing exists in the area corresponding to an open ultrasonic transceiver by detecting the number of pulses for at least one sub-time period in the echo signal, and determining whether the number of pulses meets a preset condition based on the number of pulses in different sub-time periods of the echo signal, thereby achieving accurate detection of clothing.

[0044] Ultrasonic signals are a type of sound wave, inaudible to the human ear with a frequency higher than 20 kHz. They are generated by the vibration of matter and can only propagate through a medium. When an ultrasonic signal encounters an obstacle during propagation, it is reflected back to the open-type ultrasonic transceiver; this reflected signal is called the echo signal. This application embodiment receives this echo signal and utilizes the quantitative characteristics of the echo signal at different time periods to accurately detect clothing in a corresponding area.

[0045] The clothing detection method provided in this application is mainly applied to clothing care machines. Figure 1 A schematic diagram of the garment care machine is shown. Figure 1 As shown, an ultrasonic plate 11 and a clothes hanger 12 are installed inside the inner chamber of the garment care machine. The clothes hanger 12 is used to hang clothes. When the garment care machine is running, the clothes are hung on the clothes hanger 12, and the spraying, drying and other equipment installed inside the inner chamber performs the garment care operation to realize the garment care function of the garment care machine.

[0046] The ultrasonic plate 11 is equipped with several sets of open ultrasonic transceivers. In practical applications, the ultrasonic plate 11 can be installed on the back panel inside the sealed enclosure. The ultrasonic plate 11 can be installed on the back panel inside the sealed enclosure (i.e., on the back panel opposite the door panel); it can also be installed on the top of the sealed enclosure, the bottom of the sealed enclosure, or on the door panel. The specific installation position is not fixed in this embodiment. Figure 1 The position of the ultrasonic plate 11 shown is exemplified by its location on the back panel inside the sealed enclosure.

[0047] Each open-type ultrasonic transceiver may include a transmitting probe 111 and a receiving probe 112, the positions of which correspond to the positions of the clothes hanger 12, so as to transmit ultrasonic signals through the area of ​​the open-type ultrasonic transceiver corresponding to the clothes hanger 12, and then detect clothing through the echo signals.

[0048] For example, the open-type ultrasonic transceiver is installed on the back panel inside the sealed enclosure, at a height of two centimeters below the clothes hanger. This allows for echo signal detection for garments of different lengths, optimizing garment detection performance.

[0049] In practical applications, based on the actual hardware configuration of the garment care machine, a set of open ultrasonic transceivers can be set up for each garment hanger 12 to enable the open ultrasonic transceivers to send ultrasonic signals and receive echo signals in the garment detection area, thereby improving the accuracy of determining the number of garments.

[0050] Of course, the setting position of the open ultrasonic transceiver can also be adjusted according to different clothing detection scenarios to accurately send and receive signals for the corresponding clothing detection area.

[0051] Each open-type ultrasonic transceiver in this embodiment is connected to the processor in the garment care machine. Figure 2 The connection method between each open-type ultrasonic transceiver and the processor in the garment care machine is shown. (Refer to...) Figure 2Taking a garment care machine comprising three open-type ultrasonic transceivers (such as open-type ultrasonic transceiver 1, open-type ultrasonic transceiver 2, and open-type ultrasonic transceiver 3) as an example, the processor connects to the transmitting probe Tx1 of open-type ultrasonic transceiver 1 via port Tx1-io, and the processor connects to the receiving probe Rx1 of open-type ultrasonic transceiver 1 via port Rx1-io; the processor connects to the transmitting probe Tx2 of open-type ultrasonic transceiver 2 via port Tx2-io, and the processor connects to the receiving probe Rx2 of open-type ultrasonic transceiver 2 via port Rx2-io; the processor connects to the transmitting probe Tx3 of open-type ultrasonic transceiver 3 via port Tx3-io, and the processor connects to the receiving probe Rx3 of open-type ultrasonic transceiver 3 via port Rx1-io.

[0052] When detecting clothing, the clothing detection device sends a pulse signal to the transmitting probe of the corresponding open ultrasonic transceiver, so that the ultrasonic probe sends an ultrasonic signal to its detection area. Then, the receiving probe of the ultrasonic transceiver receives the echo signal of the ultrasonic signal. Based on the echo signal, it can be analyzed to determine whether there is clothing in the area detected by the current open ultrasonic transceiver.

[0053] The following is in conjunction with the appendix Figure 1 and Figure 2 The clothing detection method provided in the embodiments of this application is described.

[0054] Figure 3 A flowchart of a clothing detection method according to Embodiment 1 of this application is provided. The clothing detection method provided in this embodiment can be executed by a clothing detection device. The clothing detection device can be implemented by software and / or hardware. The clothing detection device can be the aforementioned clothing care machine, the processor in the aforementioned clothing care machine, or the control module in the aforementioned clothing care machine used to detect the quantity of clothing.

[0055] The following description uses a clothing detection device as the main component for performing the clothing detection method. (Refer to...) Figure 3 The specific methods for testing clothing include:

[0056] S110. Acquire the echo signal received by the open ultrasonic transceiver within a preset time period.

[0057] The echo signal is the ultrasonic signal transmitted by the open ultrasonic transceiver after being reflected by an obstacle. The preset duration is proportional to the depth of the garment care machine's inner tub.

[0058] When performing clothing inspection, the clothing inspection device sends a pulse signal to the transmitting probe of the open ultrasonic transceiver set in the corresponding area according to the area that needs to be inspected, so that the transmitting probe emits an ultrasonic signal in the area that needs to be inspected.

[0059] When an ultrasonic signal propagates in this area, it will be reflected back to the open-type ultrasonic transceiver when it encounters an obstacle. This echo signal is then received by the receiving probe of the open-type ultrasonic transceiver. By acquiring this echo signal, the clothing detection device can further analyze and process it to determine whether clothing is present in the current detection area.

[0060] Specifically, such as Figure 4 As shown, in a scenario where clothes 13 are hanging on a clothes hanger 12 in the detection area corresponding to the open ultrasonic transceiver, the ultrasonic signal emitted by the transmitting probe 111 of the open ultrasonic transceiver will be reflected back to the open ultrasonic transceiver when it encounters the clothes 13 during propagation. This part of the echo signal is received by the receiving probe 112.

[0061] like Figure 5 As shown, in a scenario where there are no clothes hanging on the clothes hanger 12 in the detection area corresponding to the open ultrasonic transceiver, the ultrasonic signal emitted by the transmitting probe 111 of the open ultrasonic transceiver will reflect an echo signal after reaching the wall of the inner liner of the garment care machine and be received by the receiving probe 112.

[0062] Understandably, during the propagation of ultrasonic signals within the corresponding area of ​​the garment care machine's inner chamber, the open-type ultrasonic transceiver will receive echo signals with different signal characteristics at different times after the reflected echo signals are encountered by different obstacles (such as clothing or the inner chamber wall). Furthermore, depending on whether there is clothing in the corresponding area, the echo signals returned from the inner chamber wall will also have different signal characteristics due to interference from different obstacles.

[0063] Based on this principle, the embodiments of this application obtain this part of the echo signal for analysis and processing, and then determine whether there is clothing in the detection area of ​​the current open ultrasonic transceiver according to the different signal characteristics of the echo signal.

[0064] It should be noted that, generally speaking, after an open-type ultrasonic transceiver emits an ultrasonic signal, the echo signal reflected from the clothing will reach the receiving probe of the open-type ultrasonic transceiver first. The echo signal returning from the inner wall of the garment cavity takes a relatively long time to travel. Therefore, in order to obtain the complete echo signal for effective clothing detection, a preset echo signal duration needs to be set according to the depth of the inner liner. Subsequently, when the clothing detection device acquires the echo signal received by the receiving probe, it extracts the echo signal according to this preset duration.

[0065] The preset duration needs to be proportional to the depth of the garment care machine's inner drum.

[0066] Understandably, the longer the inner liner is, the later the echo signal reflected from the inner liner wall will be received by the receiving probe. In order to obtain the echo signal returned from the inner liner wall completely, it is necessary to preset a time based on the inner liner depth to ensure that the receiving probe can completely receive the echo signal returned from the inner liner wall of the garment care machine within the preset time, thereby optimizing the echo signal detection effect.

[0067] Optionally, in this embodiment, an open-type ultrasonic transceiver is used as the device for transmitting ultrasonic signals and receiving their echo signals. Open-type ultrasonic transceivers have the characteristics of convergent transmitted waveforms, small angle, low aftershock, and long range, which can effectively avoid unnecessary signal interference and achieve precise point detection of ultrasonic signals.

[0068] Since garment care machines may contain multiple hangers, different open-type ultrasonic transceivers are required for each hanger to detect garments in their respective areas. To reduce signal interference between different detection areas, open-type ultrasonic transceivers are used. These transceivers utilize the characteristics of convergent waveforms, small angles, low aftershocks, and long range to concentrate the transmission direction of ultrasonic signals, reducing echo signals generated outside the detection area. This, in turn, reduces echo signal reception interference and optimizes garment detection results.

[0069] Optionally, before acquiring the echo signal received by the open ultrasonic transceiver within a preset time period, the garment detection device sends a set number and frequency of pulse signals to the transmitting probe, causing the transmitting probe to send ultrasonic signals to the corresponding detection channel. The set number and frequency of the pulse signals can be adaptively set according to the actual garment detection requirements.

[0070] For example, in the clothing detection process, this application sends eight 40kHz pulse signals to the transmitting probe via the clothing detection device, thereby generating ultrasonic signals. The eight 40kHz pulse signals are a predetermined number and frequency determined based on actual test results. Based on this output pulse signal, the received echo signal exhibits better performance, thus further improving the accuracy of clothing detection.

[0071] S120. Determine at least one pulse number, where the pulse number is the number of echo signals detected by the open ultrasonic transceiver in a sub-time period, and the preset time period includes at least two sub-time periods.

[0072] During ultrasonic signal transmission, a portion of the signal travels directly from the transmitting probe to the receiving probe within a short period. This portion of the signal does not pass through a general propagation medium (such as the air in a garment care machine), but is transmitted through the hardware structure or circuit wiring of the open ultrasonic transceiver. This portion of the signal is generally referred to as the aftershock signal. Taking the garment care machine of this application embodiment as an example, the aftershock signal generally appears within 0.5ms after the ultrasonic signal is emitted. Depending on the specific hardware structure and circuit wiring design of the open ultrasonic transceiver, this portion of the signal can be determined through adaptive testing. Since the aftershock signal affects the detection and analysis of the echo signals emitted by the garment and reflected from the inner wall of the casing, the garment detection device can exclude this portion of the signal from the echo signals acquired within a preset time period based on the receiving time period corresponding to the aftershock signal.

[0073] Similarly, when there is no clothing in the detection area, the echo signal reflected back from the inner liner of the chamber during ultrasonic signal transmission will also return to the open ultrasonic transceiver at a corresponding sub-time interval within the preset duration. According to actual tests, the echo signal also exhibits a regular variation on the time axis. That is, the number of pulses in the echo signal segment corresponding to this sub-time interval shows a certain regularity.

[0074] Based on the above principle, the clothing detection method provided in this application determines the number of pulses in each sub-time period of a preset duration and performs clothing detection based on the number of pulses.

[0075] It is understandable that, based on the time sequence of signal reflection, aftershock signals, echo signals reflected back from clothing, or echo signals reflected back from the inner liner of the enclosure (when there is no clothing) will arrive at the open-type ultrasonic transceiver at different times. That is, depending on whether clothing is placed in the detection area corresponding to the open-type ultrasonic transceiver, the echo signal will arrive at the transceiver at the corresponding time. Therefore, in this embodiment, based on the time period corresponding to the echo signal reflected back from clothing and the echo signal reflected back from the inner liner of the enclosure, at least two corresponding sub-time periods are determined within a preset duration. The echo signals of these at least two sub-time periods are the aftershock signal, the echo signal reflected back from clothing, or the echo signal reflected back from the inner liner of the enclosure. By counting the number of pulses of the echo signal in these at least two sub-time periods, the data can be used as a basis to determine whether clothing is present in the area corresponding to the open-type ultrasonic transceiver.

[0076] In this embodiment, the at least two sub-time periods include at least two of a first sub-time period, a second sub-time period, and a third sub-time period. The second sub-time period follows the first sub-time period, and the third sub-time period follows the second sub-time period. The number of echo signals detected by the open-type ultrasonic transceiver in the first sub-time period is the first pulse count, the number of echo signals detected in the second sub-time period is the second pulse count, and the number of echo signals detected in the third sub-time period is the third pulse count. The at least one pulse count includes at least one of the first pulse count, the second pulse count, and the third pulse count.

[0077] The durations of the first, second, and third sub-durations can be the same or different, depending on the actual clothing detection scenario. This application does not impose a fixed limit on the duration of the sub-durations, which will not be elaborated here.

[0078] S130. If at least one pulse quantity meets a preset condition, determine that clothing exists in the area corresponding to the open ultrasonic transceiver.

[0079] After determining at least one number of pulses, it is judged whether the number of at least one pulse meets a preset condition. If it is determined that the corresponding number of pulses meets the preset condition, it can be determined that there is clothing in the area corresponding to the open ultrasonic transceiver. Specifically, in this embodiment of the application, the relationship between the number of pulses and the corresponding threshold is used as a preset condition, and the presence of clothing in the area corresponding to the open ultrasonic transceiver is determined based on the determined relationship.

[0080] In practical applications, based on actual tests, the distribution range of pulse counts for each sub-time period can be determined for the presence and absence of clothing in the corresponding area. By setting a threshold for the pulse count for each sub-time period, the presence or absence of clothing in the area corresponding to the open ultrasonic transceiver can be determined by comparing the thresholds when detecting clothing based on the pulse count in the future.

[0081] The aforementioned first and second sub-times correspond to the time periods for the echo signals reflected from clothing. These echo signals are formed by the mutual reflection of ultrasonic signals between clothes and between the clothes and the sides. Based on the pulse number variation pattern of these echo signals, by comparing the number of first pulses detected in the first sub-time and / or the number of pulses detected in the second sub-time with the corresponding threshold, it can be determined whether clothing is placed on the ultrasonic transceiver.

[0082] Furthermore, the third sub-duration corresponds to the time period for the reflected echo signal from the inner chamber of the ultrasonic transceiver. Because clothing is placed in the corresponding area, the reflected echo signal encounters obstacles from the clothing, causing multiple bounces or signal absorption. This results in a difference in the number of pulses in the reflected echo signal when clothing is placed in the corresponding area versus when no clothing is placed there. Based on this number of pulses in the echo signal, the number of pulses detected in the third sub-duration is compared to a corresponding threshold for clothing detection.

[0083] It should be noted that, based on the actual test results, the corresponding sub-duration and the threshold for the number of pulses can be preset according to the different regularities of the change in the number of echo signal pulses.

[0084] Optionally, in this embodiment, the number of garments is determined based on the relationship between the number of at least one pulse and a corresponding threshold. Specifically, the echo signal acquired for a preset duration is divided into three segments: a first sub-duration, a second sub-duration, and a third sub-duration. The number of pulses in each sub-duration is counted, and then the garments are detected by comparing the pulse count with the corresponding threshold.

[0085] Specifically, the preset conditions include: when at least one pulse number includes a first pulse number, the first pulse number is greater than or equal to a first threshold; or when at least one pulse number includes a second pulse number, the second pulse number is greater than or equal to a second threshold; or when at least one pulse number includes a third pulse number, the third pulse number is less than or equal to a third threshold.

[0086] Specifically, if at least one pulse count includes a first pulse count, and the first pulse count is greater than or equal to a first threshold, then clothing is determined to exist in the area corresponding to the open-type ultrasonic transceiver. If at least one pulse count includes a second pulse count, and the second pulse count is greater than or equal to a second threshold, then clothing is determined to exist in the area corresponding to the open-type ultrasonic transceiver. If at least one pulse count includes a third pulse count, and the third pulse count is less than or equal to a third threshold, then clothing is determined to exist in the area corresponding to the open-type ultrasonic transceiver.

[0087] For example, such as Figure 6As shown, the clothing detection device counts the echo signal received by the receiving probe within 4 milliseconds, starting from the last pulse signal sent by the transmitting probe of the ultrasonic transceiver. This echo signal is then divided into four segments, denoted as t1, t2, t3, and t4, with a 1-millisecond time interval. Since the echo signal in time segment t1 mainly contains aftershock signals, this portion is excluded during clothing detection, and only at least one segment of the echo signal from t2, t3, and t4 is extracted for clothing detection. It is understandable that aftershock signals and echo signals reflected from the inner wall of the garment liner in the absence of clothing are received in time segments t1 and t4, respectively. When different numbers of clothes are placed inside the chamber, the echo signals in time segments t2 and t3 will also exhibit regularly changing waveforms. These waveforms are formed by the mutual reflection of ultrasonic signals between clothes and between clothes and the sides. The number of pulses in the echo signals at t2, t3, and t4 is counted and denoted as n2, n3, and n4. At least one of the pulse numbers n2, n3, and n4 is then compared with the corresponding threshold to obtain the clothing detection result.

[0088] For example, refer to Figure 6 In this embodiment of the application, based on the actual test, the pulse number variation patterns of the first and second sub-time length echo signals when clothing is present in the corresponding area, and the pulse number variation patterns of the third sub-time length echo signal when clothing is absent in the corresponding area, the first threshold is 25, the second threshold is 12, and the third threshold is 2.

[0089] Specifically, if n2 is greater than or equal to 25 pulses in time period t2, or n3 is greater than or equal to 12 pulses in time period t3, or n4 is less than or equal to 2 pulses in time period t4, i.e., n2≥25 or n3≥12 or n4≤2, it is determined that clothing exists in the area corresponding to the current ultrasonic transceiver.

[0090] In such Figure 3 Based on the clothing detection method shown, further, when the number of at least one pulse includes the first pulse number, the second pulse number, and the third pulse number, the clothing detection device determines that there is no clothing in the area corresponding to the open ultrasonic transceiver when the first pulse number is less than the first threshold, the second pulse number is less than the second threshold, and the third pulse number is greater than the third threshold.

[0091] On the other hand, when the at least one pulse number includes a target pulse number and the third pulse number, and the target pulse number includes the first pulse number or the second pulse number, if the first pulse number is less than a fourth threshold and the third pulse number is greater than the third threshold when the target pulse number includes the first pulse number, the clothing detection device determines that there is no clothing in the area corresponding to the open ultrasonic transceiver. If the second pulse number is less than a fifth threshold and the third pulse number is greater than the third threshold when the target pulse number includes the second pulse number, the device determines that there is no clothing in the area corresponding to the open ultrasonic transceiver.

[0092] For example, such as Figure 6 As shown, the fourth threshold is 2, the fifth threshold is 2, and when n2 is less than 25 pulses in time period t2, n3 is less than 2 pulses in time period t3, and n4 is greater than 2 pulses in time period t4, that is, when n2<25, n3<12 and n4>2, it is determined that there is no clothing in the area corresponding to the current ultrasonic transceiver.

[0093] On the other hand, when n2 is less than or equal to 2 pulses in time period t2 and n4 is greater than 2 pulses in time period t4, or when n3 is less than or equal to 2 pulses in time period t3 and n4 is greater than 2 pulses in time period t4, i.e. n2<25 or n3<12 and n4>2, it is determined that there is no clothing in the area corresponding to the current ultrasonic transceiver.

[0094] Since the pulse number variation pattern of the reflected echo signal of clothing differs depending on whether the clothing is dry or wet, this embodiment sets a first threshold, a second threshold, a third threshold, a fourth threshold, and a fifth threshold based on the pulse number variation pattern of the echo signal in the first and second sub-time periods of clothing under different dry and wet conditions, so as to detect clothing in both dry and wet states respectively, thereby achieving a more accurate clothing detection effect.

[0095] Finally, based on the above judgment process, it can be determined whether clothing exists in the area corresponding to your current ultrasonic transceiver. It should be noted that in actual clothing detection scenarios, based on the actual variation pattern of the number of echo signal pulses, a corresponding number of sub-durations and thresholds can be adaptively set, and an appropriate rated judgment process can be selected for clothing detection. This application embodiment does not impose fixed limitations on the specific detection and comparison process for clothing detection based on the number of pulses, and will not elaborate further here.

[0096] In such Figure 3Based on the illustrated garment detection process, optionally, the garment detection device determines the garment quantity as one if it confirms the presence of garments in the area corresponding to the open ultrasonic transceiver. By outputting the garment quantity in the detected area after determining the garment detection result for the area corresponding to the open ultrasonic transceiver, it is easier to count the number of garments in the garment care machine.

[0097] Since the number of clothes in the area corresponding to the open ultrasonic transceiver is 1 if clothes are found, the clothing detection device can determine the number of clothes in the clothing care machine by statistically analyzing the clothing detection results of the corresponding areas of each open ultrasonic transceiver.

[0098] It is understood that, in this embodiment of the application, each hanger used for hanging clothes within the garment care machine is equipped with an ultrasonic transceiver. This allows the garment detection device to perform ultrasonic signal detection on the corresponding garment placement area based on each ultrasonic transceiver, and then determine whether there is clothing in each detection area (i.e., each hanger) based on the echo signal. By statistically analyzing the garment detection results of each hanger, the current number of garments in the garment care machine can be determined, and the operating time of the garment care machine can be adjusted accordingly.

[0099] For example, if a garment care machine has three hangers, the machine uses the aforementioned garment detection method to determine whether there are clothes on the three hangers, thus determining the number of clothes inside. The total garment care time and the care program are then adjusted based on the number of clothes.

[0100] Taking quick garment care as an example, it takes 20 minutes to care for one garment, 25 minutes for two garments, and 30 minutes for three garments. More garments require the care machine to provide more steam and higher auxiliary heating power. For example, one garment requires 2 minutes of steam, and each additional garment requires an additional half-minute of steam.

[0101] For some care modes involving spraying processes, since the spraying process is carried out separately for each clothing placement area, by effectively determining the placement position of the clothing, the ineffective operation of the spraying process can be avoided, thereby achieving a more efficient care effect and optimizing equipment operating efficiency and user experience.

[0102] In one embodiment, the garment detection device can also pre-configure the ultrasonic signal transmission timing of each open ultrasonic transceiver, controlling each open ultrasonic transceiver to transmit ultrasonic signals according to the corresponding ultrasonic signal transmission timing. When multiple ultrasonic transceivers are set up in the garment care machine to detect garments in multiple detection areas, in order to avoid mutual interference of signals between detection areas when the ultrasonic transceivers perform ultrasonic signal detection in parallel, which would cause the received echo signal to include signals reflected from other detection areas and interfere with the garment detection in the current detection area.

[0103] Based on this, during clothing inspection, the ultrasonic signal transmission sequence of each open-type ultrasonic transceiver is pre-set, causing each transceiver to send ultrasonic signals sequentially at different times. Correspondingly, each transceiver will also receive ultrasonic signals sequentially at different times.

[0104] To further reduce signal interference, the system is configured so that the next ultrasonic transceiver only begins transmitting an ultrasonic signal after the previous one has finished receiving it. This avoids signal interference, further improves the accuracy of garment detection, and optimizes the garment detection effect.

[0105] As described above, by acquiring the echo signal received by the open ultrasonic transceiver within a preset time period, the echo signal is the signal after the ultrasonic signal transmitted by the open ultrasonic transceiver is reflected by an obstacle; the preset time period is proportional to the inner depth of the garment care machine; at least one pulse number is determined, the pulse number is the number of echo signals detected by the open ultrasonic transceiver in one sub-time period, and the preset time period includes at least two sub-time periods; if at least one pulse number meets the preset condition, it is determined that there is clothing in the area corresponding to the open ultrasonic transceiver. Using the above technical means, by detecting the pulse number of at least one sub-time period in the echo signal and determining whether the pulse number meets the preset condition, it is determined whether there is clothing in the area corresponding to the open ultrasonic transceiver. This avoids interference signals from other time periods affecting the garment detection results, thereby improving the accuracy of garment detection. Furthermore, by accurately determining the number of garments in the garment care machine, this application allows the garment care machine to accurately adjust its operating time, optimizing equipment operating efficiency and user experience.

[0106] The foregoing mainly describes the solutions provided by the embodiments of this application from a methodological perspective. To achieve the above functions, it includes corresponding hardware structures and / or software modules for executing each function. Those skilled in the art should readily recognize that, based on the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein, this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0107] This application embodiment can divide the garment detection device (which can be the garment care machine or the processor in the garment care machine) into functional modules according to the above method example. For example, each function can be divided into separate functional modules, or two or more functions can be integrated into one processing module. The integrated module can be implemented in hardware or as a software functional module. It should be noted that the module division in this application embodiment is illustrative and only represents one logical functional division; other division methods may be used in actual implementation.

[0108] Based on the above embodiments, Figure 7 This is a schematic diagram of a clothing detection device provided in this application. (Reference) Figure 7 The clothing detection device provided in this embodiment specifically includes: an acquisition module 21, a detection module 22, and a determination module 23.

[0109] The acquisition module 21 is used to acquire the echo signal received by the open ultrasonic transceiver within a preset time period. The echo signal is the signal after the ultrasonic signal sent by the open ultrasonic transceiver is reflected by an obstacle. The preset time period is proportional to the inner depth of the garment care machine.

[0110] The detection module 22 is used to determine at least one pulse count, which is the number of echo signals detected by the open ultrasonic transceiver in a sub-duration, and the preset duration includes at least two sub-durations.

[0111] The determination module 23 is used to determine that clothing exists in the area corresponding to the open ultrasonic transceiver when at least one pulse number meets a preset condition.

[0112] Optionally, the at least two sub-durations include at least two of a first sub-duration, a second sub-duration, and a third sub-duration, wherein the second sub-duration follows the first sub-duration and the third sub-duration follows the second sub-duration; the number of echo signals detected by the open ultrasonic transceiver in the first sub-duration is the first pulse count, the number of echo signals detected in the second sub-duration is the second pulse count, and the number of echo signals detected in the third sub-duration is the third pulse count; the at least one pulse count includes at least one of the first pulse count, the second pulse count, and the third pulse count.

[0113] Accordingly, the preset conditions include: when at least one pulse number includes a first pulse number, the first pulse number is greater than or equal to a first threshold; when at least one pulse number includes a second pulse number, the second pulse number is greater than or equal to a second threshold; and when at least one pulse number includes a third pulse number, the third pulse number is less than or equal to a third threshold.

[0114] Optionally, the at least one pulse quantity includes a first pulse quantity, a second pulse quantity, and a third pulse quantity. Correspondingly, the determining module 23 is further configured to:

[0115] If the number of first pulses is less than the first threshold, the number of second pulses is less than the second threshold, and the number of third pulses is greater than the third threshold, it is determined that there is no clothing in the area corresponding to the open ultrasonic transceiver.

[0116] Optionally, the at least one pulse quantity mentioned above includes a target pulse quantity and a third pulse quantity, wherein the target pulse quantity includes a first pulse quantity or a second pulse quantity. Accordingly, the determining module 23 is further configured to:

[0117] If the number of target pulses includes the number of first pulses, and the number of first pulses is less than the fourth threshold and the number of third pulses is greater than the third threshold, it is determined that there is no clothing in the area corresponding to the open ultrasonic transceiver.

[0118] If the target pulse count includes the second pulse count, and the second pulse count is less than the fifth threshold, and the third pulse count is greater than the third threshold, it is determined that there is no clothing in the area corresponding to the open ultrasonic transceiver.

[0119] Optionally, the determining module 23 is further configured to: determine the number of clothes as one if it is determined that there are clothes in the area corresponding to the open ultrasonic transceiver.

[0120] The above describes a method for determining the presence of clothing in the area corresponding to the open ultrasonic transceiver. This method involves acquiring echo signals received by an open ultrasonic transceiver within a preset time period. The echo signals are the ultrasonic signals reflected by obstacles after being transmitted by the open ultrasonic transceiver. The preset time period is proportional to the depth of the garment care machine's inner lining. At least one pulse count is determined, where the pulse count is the number of echo signals detected by the open ultrasonic transceiver within a sub-time period. The preset time period includes at least two sub-time periods. If the pulse count meets a preset condition, clothing is determined to be present in the area corresponding to the open ultrasonic transceiver. By detecting the pulse count within at least one sub-time period of the echo signal and determining whether the pulse count meets a preset condition, the presence of clothing in the area corresponding to the open ultrasonic transceiver can be determined. This avoids interference signals from other time periods affecting the clothing detection results, thereby improving the accuracy of clothing detection.

[0121] Furthermore, by accurately determining the number of garments in the garment care machine, this application enables the garment care machine to accurately adjust its operating time, thereby optimizing the equipment's energy efficiency and user experience.

[0122] The clothing detection device provided in this application embodiment can be used to execute the clothing detection method provided in the above embodiment, and has corresponding functions and beneficial effects.

[0123] Based on the above embodiments, this application also provides a garment care machine, referring to... Figure 8 The garment care machine includes: a processor 31, a memory 32, a communication module 33, an input device 34, an output device 35, and an open ultrasonic transceiver 36.

[0124] The garment care machine can have one or more processors, and it can also have one or more memories. The open-type ultrasonic transceiver, processor, memory, communication module, input device, and output device of the garment care machine can be connected via a bus or other means.

[0125] The memory 32, as a computer-readable storage medium, can be used to store software programs, computer-executable programs, and modules, such as program instructions / modules corresponding to the clothing detection method described in any embodiment of this application (e.g., the acquisition module, detection module, and determination module in the clothing detection device).

[0126] The memory may primarily comprise a program storage area and a data storage area. The program storage area may store the operating system and at least one application program required for a given function. The data storage area may store data created based on the use of the device. Furthermore, the memory may include high-speed random access memory and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other non-volatile solid-state storage device.

[0127] In some instances, the memory may further include memory remotely located relative to the processor, which can be connected to the device via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0128] The communication module 33 is used for data transmission, and the open ultrasonic transceiver 36 is used to send ultrasonic signals and receive echo signals.

[0129] The processor 31 executes various functional applications and data processing of the device by running software programs, instructions and modules stored in the memory, thereby realizing the above-mentioned clothing detection method.

[0130] Input device 34 can be used to receive input digital or character information, and to generate key signal inputs related to user settings and function control of the device. Output device 35 may include display devices such as a display screen.

[0131] The garment care machine provided above can be used to perform the garment detection method provided in Embodiment 1 above, and has the corresponding functions and beneficial effects.

[0132] This application also provides a computer-readable storage medium including computer instructions that, when executed on a garment care machine, cause the garment care machine to perform the garment detection method as described in the above embodiments.

[0133] Storage medium – any type of memory device or storage device. The term “storage medium” is intended to include: mounting media, such as CD-ROM, floppy disk, or magnetic tape devices; computer system memory or random access memory, such as DRAM, DDR RAM, SRAM, EDO RAM, Rambus RAM, etc.; non-volatile memory, such as flash memory, magnetic media (e.g., hard disk or optical storage); registers or other similar types of memory elements, etc. Storage medium may also include other types of memory or combinations thereof. Furthermore, storage medium may reside in a first computer system in which the program is executed, or it may reside in a different second computer system connected to the first computer system via a network (such as the Internet). The second computer system can provide program instructions to the first computer for execution. The term “storage medium” can include two or more storage media residing in different locations (e.g., in different computer systems connected via a network). Storage medium may store program instructions (e.g., specifically implemented as a computer program) executable by one or more processors.

[0134] This application also provides a computer program product, which includes computer instructions that, when executed on a garment care machine, cause the garment care machine to perform the garment detection method described above.

[0135] The clothing detection device, storage medium, and clothing care machine provided in the above embodiments can perform the clothing detection method provided in any embodiment of this application. For technical details not described in detail in the above embodiments, please refer to the clothing detection method provided in any embodiment of this application.

[0136] The above description is merely a preferred embodiment and the technical principles employed in this application. This application is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions that can be made by those skilled in the art will not depart from the scope of protection of this application. Therefore, although this application has been described in detail through the above embodiments, this application is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of this application, the scope of which is determined by the scope of the claims.

Claims

1. A method for detecting clothing, characterized in that, The garment detection method, applied to garment care machines including open-type ultrasonic transceivers, comprises: The echo signal received by the open-type ultrasonic transceiver within a preset time period is acquired. The echo signal is the signal after the ultrasonic signal transmitted by the open-type ultrasonic transceiver is reflected by an obstacle. The preset time period is proportional to the inner depth of the garment care machine. The aftershock signal is detected and determined based on the hardware structure and circuit layout design of the open-type ultrasonic transceiver. The aftershock signal is excluded from the echo signal according to the reception time period corresponding to the aftershock signal. When multiple open-type ultrasonic transceivers are set up to detect garments in multiple detection areas, each open-type ultrasonic transceiver transmits ultrasonic signals at different time points according to a preset transmission sequence. Determine at least one pulse count, the pulse count being the number of echo signals detected by the open ultrasonic transceiver in a sub-time period, the preset time period including at least two sub-time periods; If the number of at least one pulse meets a preset condition, it is determined that clothing exists in the area corresponding to the open ultrasonic transceiver.

2. The clothing detection method according to claim 1, characterized in that, The at least two sub-durations include at least two of a first sub-duration, a second sub-duration, and a third sub-duration, wherein the second sub-duration is after the first sub-duration, and the third sub-duration is after the second sub-duration; the number of echo signals detected by the open ultrasonic transceiver in the first sub-duration is the first pulse count, the number of echo signals detected in the second sub-duration is the second pulse count, and the number of echo signals detected in the third sub-duration is the third pulse count; The at least one number of pulses includes at least one of the first number of pulses, the second number of pulses, and the third number of pulses; The preset condition includes: when the number of at least one pulse includes the number of the first pulse, the number of the first pulse is greater than or equal to a first threshold. Alternatively, if the number of at least one pulse includes the number of the second pulse, the number of the second pulse is greater than or equal to a second threshold; or if the number of at least one pulse includes the number of the third pulse, the number of the third pulse is less than or equal to a third threshold.

3. The clothing detection method according to claim 2, characterized in that, The at least one pulse quantity includes the first pulse quantity, the second pulse quantity, and the third pulse quantity; the clothing detection method further includes: If the number of the first pulses is less than the first threshold, the number of the second pulses is less than the second threshold, and the number of the third pulses is greater than the third threshold, it is determined that there is no clothing in the area corresponding to the open ultrasonic transceiver.

4. The clothing detection method according to claim 2, characterized in that, The at least one pulse quantity includes a target pulse quantity and the third pulse quantity, wherein the target pulse quantity includes the first pulse quantity or the second pulse quantity, and the clothing detection method further includes: If the target pulse count includes the first pulse count, and if the first pulse count is less than a fourth threshold and the third pulse count is greater than the third threshold, it is determined that there is no clothing in the area corresponding to the open ultrasonic transceiver. If the target pulse count includes the second pulse count, and if the second pulse count is less than the fifth threshold and the third pulse count is greater than the third threshold, it is determined that there is no clothing in the area corresponding to the open ultrasonic transceiver.

5. The clothing detection method according to any one of claims 1-4, characterized in that, The clothing detection method also includes: If clothing is found in the area corresponding to the open ultrasonic transceiver, the number of clothing items is determined to be one.

6. A clothing detection device, characterized in that, Applied to a garment care machine including an open-type ultrasonic transceiver, the garment detection device includes: The acquisition module is used to acquire the echo signal received by the open-type ultrasonic transceiver within a preset time period. The echo signal is the signal after the ultrasonic signal transmitted by the open-type ultrasonic transceiver is reflected by an obstacle. The preset time period is proportional to the inner depth of the garment care machine. Based on the hardware structure and circuit layout design of the open-type ultrasonic transceiver, the module detects and determines the aftershock signal, and excludes the aftershock signal from the echo signal according to the reception time period corresponding to the aftershock signal. When multiple open-type ultrasonic transceivers are set up to detect garments in multiple detection areas, each open-type ultrasonic transceiver transmits ultrasonic signals at different time points according to a preset transmission sequence. A detection module is used to determine at least one pulse count, the pulse count being the number of echo signals detected by the open ultrasonic transceiver in a sub-time period, the preset time period including at least two sub-time periods; The determination module is used to determine the presence of clothing in the area corresponding to the open ultrasonic transceiver when at least one pulse number meets a preset condition.

7. The clothing detection device according to claim 6, characterized in that, The at least two sub-durations include at least two of a first sub-duration, a second sub-duration, and a third sub-duration, wherein the second sub-duration is after the first sub-duration, and the third sub-duration is after the second sub-duration; the number of echo signals detected by the open ultrasonic transceiver in the first sub-duration is the first pulse count, the number of echo signals detected in the second sub-duration is the second pulse count, and the number of echo signals detected in the third sub-duration is the third pulse count; The at least one number of pulses includes at least one of the first number of pulses, the second number of pulses, and the third number of pulses; The preset conditions include: when the number of at least one pulse includes the number of the first pulse, the number of the first pulse is greater than or equal to a first threshold; or when the number of at least one pulse includes the number of the second pulse, the number of the second pulse is greater than or equal to a second threshold. Alternatively, if the number of at least one pulse includes the number of the third pulse, the number of the third pulse is less than or equal to a third threshold.

8. The clothing detection device according to claim 7, characterized in that, The at least one pulse quantity includes the first pulse quantity, the second pulse quantity, and the third pulse quantity, and the determining module is further configured to: If the number of the first pulses is less than the first threshold, the number of the second pulses is less than the second threshold, and the number of the third pulses is greater than the third threshold, it is determined that there is no clothing in the area corresponding to the open ultrasonic transceiver.

9. The clothing detection device according to claim 7, characterized in that, The at least one pulse quantity includes a target pulse quantity and the third pulse quantity, wherein the target pulse quantity includes the first pulse quantity or the second pulse quantity, and the determining module is further configured to: If the target pulse count includes the first pulse count, and if the first pulse count is less than a fourth threshold and the third pulse count is greater than the third threshold, it is determined that there is no clothing in the area corresponding to the open ultrasonic transceiver. If the target pulse count includes the second pulse count, and if the second pulse count is less than the fifth threshold and the third pulse count is greater than the third threshold, it is determined that there is no clothing in the area corresponding to the open ultrasonic transceiver.

10. The clothing detection device according to any one of claims 6-9, characterized in that, The determining module is also used for: If clothing is found in the area corresponding to the open ultrasonic transceiver, the number of clothing items is determined to be one.

11. A garment care machine, characterized in that, include: An open-type ultrasonic transceiver, a memory, and one or more processors, wherein the open-type ultrasonic transceiver is connected to the processors; The memory is used to store computer-executed instructions; The processor is used to invoke the computer to execute instructions and control the operation of the open ultrasonic transceiver, so that when the garment care machine is running, it executes the computer to execute instructions to implement the garment detection method as described in any one of claims 1-5.

12. A computer-readable storage medium, characterized in that, The device includes computer instructions that, when executed on the garment care machine, cause the garment care machine to perform the garment detection method as described in any one of claims 1-5.

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