WO2023087592A1 - Procédé et appareil de détection d'état sec/humide de vêtements, machine d'entretien de vêtements et support de stockage - Google Patents

Procédé et appareil de détection d'état sec/humide de vêtements, machine d'entretien de vêtements et support de stockage Download PDF

Info

Publication number
WO2023087592A1
WO2023087592A1 PCT/CN2022/082372 CN2022082372W WO2023087592A1 WO 2023087592 A1 WO2023087592 A1 WO 2023087592A1 CN 2022082372 W CN2022082372 W CN 2022082372W WO 2023087592 A1 WO2023087592 A1 WO 2023087592A1
Authority
WO
WIPO (PCT)
Prior art keywords
clothes
dry
wet
ultrasonic transceiver
state
Prior art date
Application number
PCT/CN2022/082372
Other languages
English (en)
Chinese (zh)
Inventor
王世宇
方化
Original Assignee
广州视源电子科技股份有限公司
广州易家智能电子科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 广州视源电子科技股份有限公司, 广州易家智能电子科技有限公司 filed Critical 广州视源电子科技股份有限公司
Publication of WO2023087592A1 publication Critical patent/WO2023087592A1/fr

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/04—Signal transfer or data transmission arrangements
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/18—Condition of the laundry, e.g. nature or weight
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/32—Control of operations performed in domestic laundry dryers 
    • D06F58/34—Control of operations performed in domestic laundry dryers  characterised by the purpose or target of the control
    • D06F58/36—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F58/38—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry of drying, e.g. to achieve the target humidity
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/32—Control of operations performed in domestic laundry dryers 
    • D06F58/34—Control of operations performed in domestic laundry dryers  characterised by the purpose or target of the control
    • D06F58/48—Control of the energy consumption
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/02—Characteristics of laundry or load
    • D06F2103/08—Humidity
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/56—Remaining operation time; Remaining operational cycles

Definitions

  • the embodiments of the present application relate to the technical field of ultrasonic detection, and in particular to a method and device for detecting the wet or dry state of clothes, a clothes care machine and a storage medium.
  • the clothes drying program can be adaptively selected
  • the running time can be intelligently adjusted to the optimal clothing care effect to improve user experience.
  • a temperature and humidity sensor is installed in the cabinet of the clothes care machine, and the temperature and humidity sensor detects the temperature and humidity of the air in the box to estimate the dry and wet state of the clothes in the box.
  • the embodiment of the present application provides a method and device for detecting the dry and wet state of clothes, a clothes care machine and a storage medium, which can improve the detection accuracy of the dry and wet state of clothes, and solve the low accuracy of clothes dry and wet state detection in the existing clothes care machine question.
  • the embodiment of the present application provides a method for detecting the dry and wet state of clothes, which is applied to a clothes care machine including an open ultrasonic transceiver.
  • the method for detecting the dry and wet state of clothes includes: obtaining an open ultrasonic transceiver The echo signal received by the device within the preset time length (the echo signal is the signal after the ultrasonic signal sent by the open ultrasonic transceiver is reflected by the obstacle); and then determine the first pulse number and the second pulse number, wherein the first The number of pulses is the number of echo signals detected in the first designated sub-duration, the second number of pulses is the number of echo signals detected in the second designated sub-duration, and the preset duration includes the first designated sub-duration and the second designated sub-duration; afterward, according to the first pulse number and the second pulse number, determine the wet or dry state of the clothes placed in the corresponding area of the open ultrasonic transceiver.
  • the solution provided by the embodiment of the present application is based on the different attenuation characteristics of the ultrasonic signal by the clothes in the dry and wet states, and uses the echo signals reflected by the clothes in different dry and wet states to determine the number of pulse signals with a specified sub-duration and the number of pulse signals of the dry and wet clothes.
  • the corresponding relationship of the state by determining the number of pulses contained in different sub-time lengths in the echo signal received within the preset time length, determines the dry and wet state of the clothes in the corresponding area according to the number of pulses. In this way, the misjudgment of the dry and wet state of the clothes can be avoided, and the detection accuracy of the clothes state of the clothes care machine can be improved.
  • the running time of the clothes care machine (such as the running time of the drying program) can be further adaptively adjusted according to the accurately detected dry and wet state of the clothes during the subsequent clothes care. ), to ensure the accurate adjustment of the running time of the clothing care machine, to avoid the waste of energy consumption caused by the long running time of the clothing care machine, to optimize the energy efficiency management effect of the clothing care machine, and to optimize the user experience.
  • the above-mentioned “according to the first pulse number and the second pulse number, determine the dry and wet state of the clothes placed in the corresponding area of the open ultrasonic transceiver” includes:
  • the above "determining the dry and wet state of the clothes placed in the corresponding area of the open ultrasonic transceiver according to the determined size relationship" includes:
  • the first pulse number is greater than the first pulse number threshold and the second pulse number is greater than the second pulse number threshold, it is determined that the clothing placed in the corresponding area of the open ultrasonic transceiver is in the first state;
  • the method for detecting the wet or dry state of the clothes further includes:
  • the running time of the associated program in the corresponding area of the open ultrasonic transceiver is determined.
  • the method for detecting the wet or dry state of the clothes further includes:
  • the open ultrasonic transceiver is controlled to send the ultrasonic signal, and the start time of the preset duration is the end time of sending the ultrasonic signal.
  • the embodiment of the present application provides a clothes dry and wet state detection device, which is applied to a clothes care machine including an open ultrasonic transceiver.
  • the clothes dry and wet state detection device includes: an acquisition module for Obtain the echo signal received by the open ultrasonic transceiver within the preset duration (the echo signal is the signal after the ultrasonic signal sent by the open ultrasonic transceiver is reflected by the obstacle); the detection module is used to determine the first pulse quantity and The second number of pulses, wherein, the first number of pulses is the number of echo signals detected in the first specified sub-time length, and the second number of pulses is the number of echo signals detected in the second specified sub-time length.
  • the set duration includes a first designated sub-duration and a second designated sub-duration; a state determination module is used to determine the wet or dry state of the clothes placed in the corresponding area of the open ultrasonic transceiver according to the first pulse number and the second pulse number.
  • the state determination module is specifically used for:
  • the state determination module is specifically used for:
  • the first pulse number is greater than the first pulse number threshold and the second pulse number is greater than the second pulse number threshold, it is determined that the clothing placed in the corresponding area of the open ultrasonic transceiver is in the first state;
  • the state determination module is also used for:
  • the running time of the associated program in the corresponding area of the open ultrasonic transceiver is determined.
  • the acquisition module is also used for:
  • the open ultrasonic transceiver is controlled to send the ultrasonic signal, and the start time of the preset duration is the end time of sending the ultrasonic signal.
  • the embodiment of the present application provides a clothes care machine, including:
  • An open ultrasonic transceiver memory and one or more processors, the open ultrasonic transceiver is connected to the processor;
  • memory for storing computer-executable instructions
  • the processor is used for invoking computer-executed instructions and controlling the operation of the open ultrasonic transceiver, so that when the clothes care machine is running, the computer-executed instructions are executed to implement the method for detecting the dryness and wetness of clothes according to the first aspect.
  • the embodiment of the present application provides a computer-readable storage medium, including computer instructions, and when the computer instructions are run on the clothes care machine, the clothes care machine executes such as.
  • the embodiment of the present application provides a computer program product, the computer program product includes computer instructions, and when the computer instructions are run on the clothes care machine, the clothes care machine is executed as described in the first aspect and any one thereof.
  • Fig. 1 is a schematic structural diagram of a clothes care machine in an embodiment of the present application
  • Fig. 2 is a schematic diagram of the connection between the dry and wet state detection device of the clothes and the ultrasonic board in the embodiment of the present application;
  • Fig. 3 is a flow chart of a method for detecting the wet or dry state of clothes provided in the embodiment of the present application;
  • Fig. 4 is a schematic diagram of an echo signal in an embodiment of the present application.
  • Fig. 5 is a schematic diagram of another echo signal in the embodiment of the present application.
  • Fig. 6 is a flow chart of detecting the dry and wet state of the clothes of the clothes care machine in the embodiment of the present application
  • Fig. 7 is a flow chart of determining the wet and dry state in the embodiment of the present application.
  • Fig. 8 is a schematic structural diagram of a device for detecting the wet or dry state of clothes provided in an embodiment of the present application
  • Fig. 9 is a schematic structural connection diagram of a clothes care machine provided by an embodiment of the present application.
  • first and second are only used to distinguish one entity or operation or object from another entity or operation or object, and do not necessarily require or imply these Any such actual relationship or order exists before entities or operations or objects.
  • first and second in the first touch operation and the second touch operation are used to distinguish two interactive operations of touching the screen cover at different times.
  • the method for detecting the dry and wet state of clothes aims to detect the number of pulses contained in different sub-durations of the echo signal based on the attenuation characteristics of the clothes in different dry and wet states to the ultrasonic echo signal, and to detect the echoes reflected by the clothes in different dry and wet states.
  • the corresponding relationship between the number of pulse signals with a specified sub-duration and the dry and wet state of the clothes is used to accurately determine the dry and wet state of the clothes placed in the corresponding area of the current open ultrasonic transceiver, and improve the accuracy and efficiency of the dry and wet state detection of the clothes.
  • the ultrasonic signal is a part of the sound wave, which is inaudible to the human ear and has a frequency higher than 20KHZ. It is produced by the vibration of the material and can only propagate in the medium. When the ultrasonic signal encounters obstacles during propagation, it will be reflected back to the open ultrasonic transceiver, and this part of the signal is the echo signal.
  • the corresponding relationship between the number of pulse signals with a specified sub-time length in the clothes in different dry and wet states and the reflected echo signal is used to accurately detect the dry and wet state of the clothes in the corresponding area.
  • Fig. 1 shows a schematic structural diagram of a clothes care machine.
  • an ultrasonic panel 11 and a clothes hanger 12 are arranged in the tank of the clothes care machine, and the clothes hanger 12 is used for hanging clothes.
  • the clothes care machine is running, the clothes are hung on the hanger 12, and the equipment such as spraying and drying provided in the inner tank of the box is used to perform clothes care operations, so as to realize the clothes care function of the clothes care machine.
  • the ultrasonic board 11 can be installed on the backboard inside the airtight box.
  • the ultrasonic board 11 can be installed on the back panel inside the airtight box (that is, installed on the back panel opposite the door panel); it can also be installed on the top of the airtight box, or on the bottom of the airtight box, or on the door panel
  • the embodiment of the present application does not impose fixed restrictions on its specific setting location.
  • the position of the ultrasonic plate 11 shown in Fig. 1 is taken as an example at the back plate inside the airtight box.
  • Each open ultrasonic transceiver can include a sending probe 111 and a receiving probe 112, and its setting position corresponds to the setting position of the clothes hanger 12, so as to send ultrasonic signals through the area corresponding to the clothes hanger 12 through the open ultrasonic transceiver, and then carry out the process through the echo signal. Dry and wet state detection of clothes.
  • the open ultrasonic transceiver is installed on the backboard inside the airtight box, and the height is two centimeters below the clothes hanger.
  • echo signal detection can be performed corresponding to clothes of different lengths, and the detection effect of the dry and wet state of clothes can be optimized.
  • a group of open ultrasonic transceivers is correspondingly installed, so as to realize the ultrasonic signal transmission of the open ultrasonic transceiver corresponding to the dry and wet state detection area of the clothes And echo signal reception, improve the accuracy of determining the dry and wet state of clothes.
  • Each open ultrasonic transceiver in the embodiment of the present application is connected with the processor in the clothing care machine.
  • Figure 2 shows how each open ultrasonic transceiver is connected to the processor in the laundry care machine.
  • the processor is connected through the port Tx1-io
  • the transmitting probe Tx1 of the open ultrasonic transceiver 1 the processor connects the receiving probe Rx1 of the open ultrasonic transceiver 1 through the port Rx1-io; the processor connects the transmitting probe Tx2 of the open ultrasonic transceiver 2 through the port Tx2-io, and processes
  • the processor is connected to the receiving probe Rx2 of the open ultrasonic transceiver 2 through the port Rx2-io; the processor is connected to the transmitting probe Tx3 of the open ultrasonic transce
  • the dry and wet state detection device of the clothes When detecting the dry and wet state of clothes, the dry and wet state detection device of the clothes sends a pulse signal to the sending probe corresponding to the open ultrasonic transceiver, so that the ultrasonic probe sends an ultrasonic signal to its detection area, and then passes through the receiving probe of the ultrasonic transceiver.
  • the echo signal of the ultrasonic signal is received, and based on the echo signal, it can be analyzed to determine whether there is clothing in the area corresponding to the detection of the current open ultrasonic transceiver.
  • FIG. 3 shows a flow chart of a method for detecting the dryness and wetness of clothes provided in Embodiment 1 of the present application.
  • the method for detecting the wet or dry state of clothes provided in this embodiment may be executed by a device for detecting the wet or dry state of clothes.
  • the device for detecting the wet or dry state of clothes can be realized by means of software and/or hardware.
  • the device for detecting the wet or dry state of clothes may be the above-mentioned clothes care machine, or a processor in the clothes care machine, or a control module for detecting the dry or wet state of clothes in the clothes care machine.
  • the clothes dryness and wetness detection device as the main body of the clothes dryness and wetness detection method as an example.
  • the method for detecting the dry and wet state of the clothes specifically includes:
  • the dry and wet state detection device of the clothes When detecting the dry and wet state of clothes, the dry and wet state detection device of the clothes sends a pulse signal to the sending probe of the open ultrasonic transceiver correspondingly set in the area according to the current area to be detected, so that the sending probe is in the current area to be detected Send out ultrasonic signals.
  • the device for detecting the dry and wet state of the clothes can further analyze and process to determine the dry and wet state of the clothes placed in the current detection area.
  • the ultrasonic signal since the ultrasonic signal has different attenuation effects on the ultrasonic signal when it encounters clothes in a dry state and a wet state during transmission, the number of pulse signals in the signal waveform of the reflected echo signal is Also different. Based on the attenuation characteristics of the ultrasonic signal by the clothes in the dry and wet state, the received echo signal is detected by two pulse signals with specified sub-time lengths, and the dry and wet states of the clothes can be determined according to different pulse numbers.
  • the ultrasonic signal emitted by the sending probe 111 of the open ultrasonic transceiver encounters the clothing 13 on the way of propagation.
  • the echo signal will be reflected to the open ultrasonic transceiver, and this part of the echo signal will be received by the receiving probe 112 .
  • the waveform characteristics of the echo signals are different. That is, corresponding to dry and wet clothes, the reflected echo signal waveforms contain different numbers of pulse signals with specified sub-duration.
  • the ultrasonic signal emitted by the sending probe 111 of the open ultrasonic transceiver will reach the clothing care machine.
  • the echo signal is reflected by the wall of the gallbladder to the open ultrasonic transceiver, and this part of the echo signal is received by the receiving probe 112 .
  • the open ultrasonic transceiver will Echo signals with different signal characteristics are received. Moreover, depending on whether there is clothing in the corresponding area, the echo signals returned from the inner wall of the box have different signal characteristics due to the interference of different obstacles. Based on this principle, this part of the echo signal can also be obtained for analysis and processing, and then it can be determined according to the different signal characteristics of the echo signal whether there is clothing in the detection area of the current open ultrasonic transceiver.
  • the open ultrasonic transceiver After the open ultrasonic transceiver sends out the ultrasonic signal, it will first reach the receiving probe of the open ultrasonic transceiver when encountering the echo signal reflected by the clothing.
  • the return time is relatively long. Therefore, in order to obtain the echo signal of the ultrasonic signal completely and effectively detect the dry and wet state of the clothes, it is necessary to set the effective detection period of the echo signal according to the depth of the inner liner of the box. Subsequently, when the device for detecting the wet or dry state of the clothes acquires the echo signal received by the receiving probe, it detects the echo signal according to the effective detection period.
  • the effective detection period needs to be proportional to the depth of the liner of the clothes care machine.
  • an open ultrasonic transceiver is used as a device for sending ultrasonic signals and receiving echo signals thereof.
  • the open ultrasonic transceiver has the characteristics of convergent transmission waveform, small angle, small aftershock and long range, which can effectively avoid unnecessary signal interference and realize accurate fixed-point detection of ultrasonic signals.
  • the device for detecting the wet or dry state of clothes monitors the echo signal received by the open ultrasonic transceiver within a preset time period, it controls the open ultrasonic transceiver to send an ultrasonic signal, and the starting time of the preset time period is the ultrasonic signal Send end time.
  • the sending probe sends an ultrasonic signal to the corresponding detection channel.
  • the set number and set frequency of pulse signal transmission can be adaptively set.
  • the device for detecting the dryness and wetness of the clothes sends eight pulse signals of 40KHz to the sending probe, and then makes it generate an ultrasonic signal.
  • Eight 40KHz pulse signals are the set number and frequency of pulse signal transmission determined according to the actual test results. Based on the output pulse signal, it has a better effect on corresponding to the received echo signal, so as to further improve the accuracy of the detection of the dry and wet state of the clothes.
  • the echo signal of the inner wall of the box is not detected, that is, at 3 to 4 milliseconds No signal is returned, but after the reflection of the dry clothes, because the distance between the ultrasonic detection device and the clothes is relatively close, the first echo signal will be in the aftershock wave (the ultrasonic signal is directly transmitted from the sending probe to the receiving device through the hardware structure and circuit structure of the ultrasonic transceiver. part of the interference signal from the probe) then appears.
  • the echo signal will appear in the range of 1 to 2 milliseconds, the pulse number of the echo signal is greater than a certain fixed value (such as 3 pulse signals), and the pulse number fluctuates within a fixed range according to the different humidity conditions of the clothes. And, after the second rebound of the equipment and clothes, the second echo signal will be detected within 4 to 6 milliseconds, and the number of pulses of the same part of the echo signal is greater than a certain fixed value (such as 3 pulse signals) , according to the different humidity conditions of the clothes, the number of pulses also fluctuates within a fixed range.
  • a certain fixed value such as 3 pulse signals
  • the present application Based on the distribution law of the number of pulse signals of the echo signals in the above two time periods, the present application sets a preset time length to obtain the echo signals received within the preset time length, and detects the dryness and wetness of the clothes based on the echo signals. For example, since clothing detection needs to count and analyze the number of pulse signals within 1 to 2 milliseconds and 4 to 6 milliseconds, it is necessary to obtain echo signals within 6 milliseconds to detect whether the clothes are dry or wet. Set the default duration to 6 milliseconds.
  • the different waveform characteristics of the reflected echo signals in dry and wet states are determined.
  • the echo signal detection process As shown in Figure 6, after sending the last pulse signal, it enters the echo signal detection process, and detects whether the receiving probe of the open ultrasonic transceiver receives the echo signal within the effective detection period. wave signal.
  • the embodiment of the present application detects whether an echo signal is received within 4 ms (ie, the effective detection period), and if so, acquires the echo signal received within 6 ms (ie, a preset duration). In addition, if no echo signal is detected within the effective detection period, abnormal detection information of the echo signal is output.
  • the open ultrasonic transceiver After the open ultrasonic transceiver sends out the ultrasonic signal, it will first reach the receiving probe of the open ultrasonic transceiver when encountering the echo signal reflected by the clothing. And for the echo signal that the ultrasonic signal arrives at the liner wall and returns, its return time is relatively long. That is, within a fixed period of time after the ultrasonic signal is emitted, no matter whether there is clothing in the corresponding area of the open ultrasonic transceiver, the corresponding echo signal (the echo signal reflected by the clothing or the echo signal reflected by the inner wall of the box) will be received. ). If no echo signal is detected within this period of time, it indicates that there is currently an abnormal detection of the echo signal.
  • the effective detection period of the echo signal detection needs to be proportional to the inner tank depth of the clothing care machine. It is understandable that the longer the inner tank depth is, the later the echo signal reflected by the inner tank wall is received by the receiving probe. For the normal acquisition of the signal, it is necessary to set the effective detection period according to the depth of the inner tank, so as to ensure that the receiving probe can normally receive the echo signal during the effective detection period, and optimize the detection effect of the echo signal.
  • the preset duration includes a first designated sub-duration and a second designated sub-duration.
  • the embodiment of the present application sets the first The designated sub-duration and the second designated sub-duration are used to determine the number of pulse signals contained in the two sub-durations from the echo signal of the preset duration.
  • the number of pulse signals detected by the first designated sub-time is defined as the first number of pulses
  • the number of pulse signals obtained by the second designated sub-time is defined as the second number of pulses.
  • the device for detecting the dryness and wetness of the clothes determines from the echo signal of 6ms that 1-2ms
  • the number of pulses of the echo signal in the period (the first designated sub-duration) is denoted as N1; the number of pulses of the echo signal in the 4-6ms period (the second designated sub-duration) is determined, denoted as N2, so as to complete the first pulse number and Statistics of the number of second pulses.
  • the number of pulses of the echo signal per millisecond unit time within 6 milliseconds can be calculated respectively, which are denoted as n1-n6. Then select the number of pulses corresponding to the unit time according to the interval range of the first designated sub-duration, and determine the number of pulses within 1 to 2 milliseconds as N1, and the number of pulses within 4 to 6 milliseconds as N2.
  • the pulse signal in the waveform can be determined.
  • Quantity distribution and then determine the pulse quantity threshold corresponding to the first designated sub-duration and the second designated sub-duration. According to the comparison result of the set pulse number threshold and the first pulse number and the second pulse number, the state of the clothes placed in the area corresponding to the open ultrasonic transceiver is determined.
  • the process for determining the dry and wet state of clothes includes:
  • S1302. Determine the wet or dry state of the clothes placed in the area corresponding to the open ultrasonic transceiver according to the determined size relationship.
  • the first echo signal will appear in the range of 1 to 2 milliseconds, and the pulse number of the echo signal is greater than 3 pulse signals, and the second Secondary echo signals will be detected in the range of 4 to 6 milliseconds, and the number of pulses in this part of the echo signal is also greater than 3 pulse signals.
  • the set pulse number threshold of the first specified sub-duration and the second specified sub-duration can be set to 3 pulse signals.
  • the first pulse number is greater than the first pulse number threshold and the second pulse number is greater than the second pulse number threshold, it is determined that the clothing placed in the corresponding area of the open ultrasonic transceiver is in the first state; If the number of pulses is less than the first pulse number threshold, or the second pulse number is less than the second pulse number threshold, it is determined that the clothing placed in the area corresponding to the open ultrasonic transceiver is in the second state.
  • the wet clothes are predefined as the first state, and the dry clothes are the second state, and then according to the wet and dry state, the number of pulses of the echo signal reflected by the clothes in the first specified sub-duration and the second specified sub-duration
  • set a threshold value for the number of set pulses As shown in Figure 6, the pulse number threshold is 3.
  • the first pulse number and the second pulse number are greater than 3, it is judged that the clothes placed in the corresponding area of the current open ultrasonic transceiver are wet clothes, otherwise, they are dry clothes. In this way, the detection of the dryness and wetness of the clothes in the embodiment of the present application is completed.
  • first state and second state may be dry state and wet state respectively, or may be a state with humidity of a% and b% (a, b take values from 1-100). That is to say, according to the actual detection needs, it is possible to set a variety of dry and wet states corresponding to different wetness levels of the clothes, and according to the actual test, determine the reflected echo signal of the clothes in each dry and wet state in the first designated sub-duration and the second designated sub-duration According to the distribution law of the number of pulses, the pulse number threshold corresponding to each dry and wet state is set, so that the corresponding dry and wet state of the clothes can be determined according to the set pulse number threshold.
  • the reflected echo signal of the clothes is in the first specified sub-duration and the second
  • the distribution law of the number of pulses in the second designated sub-duration determines the value range of the pulse number of the echo signal in the first designated sub-duration and the second designated sub-duration, and the corresponding set pulse can be set according to this value range Quantity Threshold.
  • the number of pulses in the first designated sub-duration and the second designated sub-duration are both between 4-6, corresponding to the dry and wet state of 30% humidity, determine the set number of pulses
  • the threshold is 4-6.
  • both the first pulse number and the second pulse number are between 4-6, it is determined that the current laundry is in a dry and wet 30% humidity state.
  • the number of pulses of the reflected echo signal in the first specified sub-time length and the second specified sub-time length is also relatively large.
  • the running time of the associated program in the area corresponding to the open ultrasonic transceiver is determined. For example, for clothes with a humidity of 30%, set the drying program in the corresponding area to run for 10 minutes; for clothes with a humidity of 80%, set the drying program for the corresponding area to run for 30 minutes; Run, the spray program runs for 3 minutes.
  • mapping relationship between different dry and wet states and the running time of the associated program of the clothing care machine when the dry and wet state of the clothes in the area corresponding to the open ultrasonic transceiver is determined, the mapping relationship can be queried according to the dry and wet state to determine each associated program in the area of running time. In this way, the length of clothing care can be intelligently adjusted to achieve a more efficient care effect, and optimize the energy efficiency of equipment operation and user experience.
  • the clothing care machine includes at least two open ultrasonic transceivers.
  • the ultrasonic signal transmission timing of each open ultrasonic transceiver is also pre-configured to control each open ultrasonic transceiver in the corresponding Ultrasonic signal sending timing sends ultrasonic signals.
  • the clothing care machine is equipped with multiple open ultrasonic transceivers to detect the dryness and wetness of the clothes in multiple detection areas, in order to avoid the occurrence of signal fluctuations in each detection area when the ultrasonic transceivers perform ultrasonic signal detection in parallel
  • Mutual interference causes the received echo signal to include signals reflected from other detection areas, which interferes with the detection of the wet or dry state of the clothes in the current detection area.
  • each open ultrasonic transceiver transmits ultrasonic signals at different time points in sequence.
  • each open ultrasonic transceiver will also receive the echo signals of the ultrasonic signals at different time points in sequence.
  • it is set that after one ultrasonic transceiver receives the echo signal of the ultrasonic signal, the next ultrasonic transceiver starts to send the ultrasonic signal. In this way, signal interference can be avoided, the accuracy of clothing detection can be further improved, and the effect of clothing detection can be optimized.
  • the echo signal is the signal after the ultrasonic signal sent by the open ultrasonic transceiver is reflected by the obstacle;
  • the first pulse is determined from the echo signal number and the second pulse number, the first pulse number is the number of echo signals detected in the first specified sub-time length, the second pulse number is the number of echo signals detected in the second specified sub-time length, and the preset It is assumed that the duration includes a first designated sub-duration and a second designated sub-duration; according to the first number of pulses and the second number of pulses, the wet or dry state of the clothes placed in the corresponding area of the open ultrasonic transceiver is determined.
  • the dry and wet state of the clothes in the corresponding area can be accurately determined to avoid misjudgment of the dry and wet state of the clothes , to improve the detection accuracy of the clothes condition of the clothes care machine.
  • the application precisely adjusts the running time of the clothing care machine according to the dry and wet state of the clothes in the corresponding area, which can optimize the clothes care effect and improve the user experience.
  • FIG. 8 is a schematic structural diagram of a device for detecting the dryness and wetness of clothes provided by the embodiment of the present application.
  • the device for detecting the wet or dry state of clothes provided in this embodiment specifically includes: an acquisition module 21 , a detection module 22 and a state determination module 23 .
  • the obtaining module 21 is used to obtain the echo signal received by the open ultrasonic transceiver within a preset time length, and the echo signal is a signal after the ultrasonic signal sent by the open ultrasonic transceiver is reflected by an obstacle ;
  • the detection module 22 is used to determine the first number of pulses and the second number of pulses, the first number of pulses is the number of echo signals detected in the first designated sub-duration, and the second number of pulses is the number of echo signals detected in the second designated time period.
  • the number of echo signals detected in the sub-duration, the preset duration includes the first specified sub-duration and the second specified sub-duration;
  • the state determining module 23 is configured to determine the wet or dry state of the clothes placed in the area corresponding to the open ultrasonic transceiver according to the first pulse number and the second pulse number.
  • the state determination module 23 is specifically used for:
  • the state determination module is specifically used for:
  • the first pulse number is greater than the first pulse number threshold and the second pulse number is greater than the second pulse number threshold, it is determined that the clothing placed in the corresponding area of the open ultrasonic transceiver is in the first state;
  • the status determination module is also used to:
  • the running time of the associated program in the corresponding area of the open ultrasonic transceiver is determined.
  • This acquisition module is also used to:
  • the open ultrasonic transceiver is controlled to send the ultrasonic signal, and the start time of the preset duration is the end time of sending the ultrasonic signal.
  • the echo signal is the signal after the ultrasonic signal sent by the open ultrasonic transceiver is reflected by the obstacle;
  • the first pulse is determined from the echo signal number and the second pulse number, the first pulse number is the number of echo signals detected in the first specified sub-time length, the second pulse number is the number of echo signals detected in the second specified sub-time length, and the preset It is assumed that the duration includes a first designated sub-duration and a second designated sub-duration; according to the first number of pulses and the second number of pulses, the wet or dry state of the clothes placed in the corresponding area of the open ultrasonic transceiver is determined.
  • the dry and wet state of the clothes in the corresponding area can be accurately determined to avoid misjudgment of the dry and wet state of the clothes , to improve the detection accuracy of the clothes condition of the clothes care machine.
  • the application precisely adjusts the running time of the clothing care machine according to the dry and wet state of the clothes in the corresponding area, which can optimize the clothes care effect and improve the user experience.
  • the apparatus for detecting the wet or dry state of clothes provided in the embodiments of the present application can be used to implement the method for detecting the dry or wet state of clothes provided in the above embodiments, and has corresponding functions and beneficial effects.
  • the embodiment of the present application also provides a clothes care machine. Referring to FIG. Open Ultrasonic Transceiver36.
  • the number of processors in the clothes care machine may be one or more, and the number of memories in the clothes care machine may be one or more.
  • the open ultrasonic transceiver, processor, memory, communication module, input device and output device of the clothing care machine can be connected through a bus or in other ways.
  • the memory 32 can be used to store software programs, computer-executable programs and modules, such as program instructions/modules corresponding to the method for detecting the wet or dry state of clothes described in any embodiment of the present application (for example, clothes are dry or wet).
  • the memory may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system and at least one application required by a function; the data storage area may store data created according to the use of the device, and the like.
  • the memory may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage devices.
  • the memory may further include memory located remotely from the processor, which remote memory may be connected to the device via a network. Examples of the aforementioned networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.
  • the communication module 33 is used for data transmission, and the open ultrasonic transceiver 36 is used for sending ultrasonic signals and receiving echo signals.
  • the processor 31 executes various functional applications and data processing of the device by running the software programs, instructions and modules stored in the memory, that is, realizes the above-mentioned method for detecting the dryness and wetness of the clothes.
  • the input device 34 can be used for receiving inputted numerical or character information, and generating key signal input related to user setting and function control of the device.
  • the output device 35 may include a display device such as a display screen.
  • the laundry care machine provided above can be used to implement the method for detecting the wet or dry state of the laundry provided in the above embodiment, and has corresponding functions and beneficial effects.
  • the embodiments of the present application also provide a computer-readable storage medium, the computer-readable storage medium includes computer instructions, and when the computer instructions are run on the clothes care machine, the clothes care machine is executed as described above.
  • storage medium any of various types of memory devices or storage devices.
  • storage medium is intended to include: installation media such as CD-ROMs, floppy disks, or tape drives; 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 (eg hard disk or optical storage); registers or other similar types of memory elements, etc.
  • the storage medium may also include other types of memory or combinations thereof.
  • the storage medium may be located in a first computer system in which the program is executed, or may be located in a different second computer system connected to the first computer system through a network such as the Internet.
  • the second computer system may provide program instructions to the first computer for execution.
  • storage medium may include two or more storage media that reside in different locations, for example in different computer systems connected by a network.
  • the storage medium may store program instructions (eg embodied as computer programs) executable by one or more processors.
  • a storage medium containing computer-executable instructions provided in the embodiments of the present application
  • the computer-executable instructions are not limited to the method for detecting the dryness and wetness of the clothes as described above, and can also execute the clothes provided in any embodiment of the present application. Related operations in the wet and dry state detection method.
  • the embodiment of the present application also provides a computer program product, the computer program product includes computer instructions, and when the computer instructions are run on the clothes care machine, the clothes care machine is made to perform the detection of the wet or dry state of the clothes as described in the above embodiments method.
  • the clothes dry and wet state detection device, storage medium and clothes care machine provided in the above embodiments can implement the clothes dry and wet state detection method provided in any embodiment of the present application.
  • the clothes dry and wet state detection method provided in any embodiment of the present application.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

Procédé et un appareil de détection d'état sec/humide de vêtements, machine d'entretien de vêtements et support de stockage. Des signaux réfléchis reçus par un émetteur-récepteur ultrasonore ouvert (36) pendant une durée prédéfinie sont obtenus, les signaux réfléchis étant des signaux formés après que les signaux ultrasonores envoyés par l'émetteur-récepteur ultrasonore ouvert (36) ont été réfléchis par un obstacle ; une première quantité d'impulsions et une seconde quantité d'impulsions sont déterminées ; l'état sec/humide de vêtements placés dans une zone correspondant à l'émetteur-récepteur ultrasonore ouvert (36) est déterminé en fonction de la première quantité d'impulsions et de la seconde quantité d'impulsions.
PCT/CN2022/082372 2021-11-16 2022-03-23 Procédé et appareil de détection d'état sec/humide de vêtements, machine d'entretien de vêtements et support de stockage WO2023087592A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202111355486.7A CN116136060A (zh) 2021-11-16 2021-11-16 衣物干湿状态检测方法、装置、衣物护理机及存储介质
CN202111355486.7 2021-11-16

Publications (1)

Publication Number Publication Date
WO2023087592A1 true WO2023087592A1 (fr) 2023-05-25

Family

ID=86332607

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/082372 WO2023087592A1 (fr) 2021-11-16 2022-03-23 Procédé et appareil de détection d'état sec/humide de vêtements, machine d'entretien de vêtements et support de stockage

Country Status (2)

Country Link
CN (1) CN116136060A (fr)
WO (1) WO2023087592A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1122552A (en) * 1965-03-31 1968-08-07 Gen Signal Corp Ultrasonic presence detector
JP2006017435A (ja) * 2004-07-05 2006-01-19 Mitsubishi Electric Corp 空気調和機
KR20090016917A (ko) * 2007-08-13 2009-02-18 엘지전자 주식회사 건조기
JP2009039145A (ja) * 2007-08-06 2009-02-26 Panasonic Corp 浴室換気乾燥システム
WO2013088830A1 (fr) * 2011-12-14 2013-06-20 シャープ株式会社 Séchoir à linge
WO2016015765A1 (fr) * 2014-07-31 2016-02-04 Electrolux Appliances Aktiebolag Appareil de traitement du linge à détecteur d'humidité
CN106841302A (zh) * 2016-12-29 2017-06-13 无锡小天鹅股份有限公司 干衣设备和用于干衣设备的衣物干湿度判别方法、装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1122552A (en) * 1965-03-31 1968-08-07 Gen Signal Corp Ultrasonic presence detector
JP2006017435A (ja) * 2004-07-05 2006-01-19 Mitsubishi Electric Corp 空気調和機
JP2009039145A (ja) * 2007-08-06 2009-02-26 Panasonic Corp 浴室換気乾燥システム
KR20090016917A (ko) * 2007-08-13 2009-02-18 엘지전자 주식회사 건조기
WO2013088830A1 (fr) * 2011-12-14 2013-06-20 シャープ株式会社 Séchoir à linge
WO2016015765A1 (fr) * 2014-07-31 2016-02-04 Electrolux Appliances Aktiebolag Appareil de traitement du linge à détecteur d'humidité
CN106841302A (zh) * 2016-12-29 2017-06-13 无锡小天鹅股份有限公司 干衣设备和用于干衣设备的衣物干湿度判别方法、装置

Also Published As

Publication number Publication date
CN116136060A (zh) 2023-05-19

Similar Documents

Publication Publication Date Title
EP4154789A1 (fr) Procédé et appareil pour déterminer le niveau de saleté d'un mécanisme de nettoyage, et support de stockage
US11076217B2 (en) Portable device and method for operating the same
JP5511840B2 (ja) 障害物検知装置
US9582121B2 (en) Signal processing for acoustic user input
CN107957581B (zh) 一种雷达探测方法、装置、存储介质及雷达
US10468020B2 (en) Systems and methods for removing interference for audio pattern recognition
US20150063068A1 (en) Sensing device and positioning method
CN106527165A (zh) 人体监测装置、智能坐便器及智能家用电器
CN108169752B (zh) 一种基于无线通信的超声波测距方法及系统
WO2023087592A1 (fr) Procédé et appareil de détection d'état sec/humide de vêtements, machine d'entretien de vêtements et support de stockage
KR20150041584A (ko) 진동파들의 반사 감쇠
US20220214451A1 (en) Sensor fusion
WO2023087591A1 (fr) Procédé et appareil pour détecter un état sec ou humide de vêtements, machine d'entretien de vêtements et support de stockage
CN108267740B (zh) 信息处理方法、超声波装置、移动设备和存储介质
WO2023087466A1 (fr) Procédé et appareil de détection de vêtements, machine d'entretien de vêtements et support de stockage
WO2023087444A1 (fr) Procédé et appareil pour mesurer le nombre de vêtements, et machine de soins de vêtements et support de stockage
JP3573090B2 (ja) 水中目標物位置検出装置及び方法
WO2022179297A1 (fr) Procédé, appareil et dispositif de commande ultrasonore, et support
KR20210012617A (ko) 반려동물 소음 감소장치
CN106249621B (zh) 一种容器的控制装置、方法以及容器
JP2016080397A (ja) ユーザ検出方法、ユーザ検出装置および画像形成装置
CN113050099A (zh) 一种自动泊车障碍物距离检测方法及其系统、检测设备
CN111103925B (zh) 距离传感方法、系统、距离感应传感器及电子设备
KR102476559B1 (ko) 디스플레이장치 및 그 제어방법
KR20240089666A (ko) 근접 및 거리 감지

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22894138

Country of ref document: EP

Kind code of ref document: A1