EP3130696A1 - Machine à laver et procédé de commande de protection anti-coincement pour leur porte électrique - Google Patents

Machine à laver et procédé de commande de protection anti-coincement pour leur porte électrique Download PDF

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Publication number
EP3130696A1
EP3130696A1 EP16166395.0A EP16166395A EP3130696A1 EP 3130696 A1 EP3130696 A1 EP 3130696A1 EP 16166395 A EP16166395 A EP 16166395A EP 3130696 A1 EP3130696 A1 EP 3130696A1
Authority
EP
European Patent Office
Prior art keywords
electric door
driving motor
current value
position information
closed position
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP16166395.0A
Other languages
German (de)
English (en)
Inventor
Wei Zhang
Dongliang YAN
Xiaotao LV
Xiaofeng Wang
Qin TANG
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuxi Filin Electronics Co Ltd
Original Assignee
Wuxi Filin Electronics Co Ltd
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 Wuxi Filin Electronics Co Ltd filed Critical Wuxi Filin Electronics Co Ltd
Publication of EP3130696A1 publication Critical patent/EP3130696A1/fr
Withdrawn legal-status Critical Current

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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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/42—Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door
    • 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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • 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
    • D06F2103/40—Opening or locking status of doors
    • 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
    • D06F2103/44—Current or voltage
    • 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
    • D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting
    • 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
    • D06F2105/58—Indications or alarms to the control system or to the user
    • 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
    • D06F34/20—Parameters relating to constructional components, e.g. door sensors
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/12—Casings; Tubs
    • D06F39/14—Doors or covers; Securing means therefor

Definitions

  • the present invention relates to a field of electrical appliance manufacturing technology, and more particularly, to an anti-pinching control method for an electric door of a washing machine, and to a washing machine.
  • an electric door for the washing machine turns up in the market.
  • the electric door is driven and controlled in many ways, but has poor security. For example, it is a common phenomenon that fingers are pinched and injured.
  • the electric door is not controlled manually, and tends to directly press on fingers when it is closed, which causes injuries.
  • Embodiments of the present invention seek to solve at least one of the problems existing in the related art to at least some extent.
  • embodiments of the present invention provide an anti-pinching control method for an electric door of a washing machine. The method can realize an anti-pinching function, and improve the security of the washing machine.
  • Embodiments of the present invention further provide a washing machine that has the anti-pinching function, and the resulting enhanced security.
  • an anti-pinching control method for an electric door of a washing machine includes the following steps: obtaining closed position information of the electric door of the washing machine, and detecting a current value of a driving motor of the electric door; determining whether the electric door pinches fingers according to the closed position information and/or the current value of the driving motor; and controlling the driving motor to stop running if the electric door pinches fingers.
  • the finger-pinching judgment based on the closed position information of the electric door and the current value of the driving motor may conduct a unilateral detection or a double detection which is more reliable compared with the single detection means in the related art, such that it is possible to determine whether fingers are pinched in case of the failure of the unilateral detection, so as to improve the security of the washing machine.
  • the step of obtaining the closed position information of the electric door of the washing machine specifically includes: detecting a closed angle of the electric door by an angle sensor; and obtaining the closed position information according to the closed angle of the electric door.
  • the step of determining whether the electric door pinches fingers according to the closed position information and/or the current value of the driving motor specifically includes: determining that the electric door pinches fingers if the current value of the driving motor is larger than a preset current value and/or the closed position information does not vary within a first preset time period.
  • the step of determining whether the electric door pinches fingers according to the closed position information and/or the current value of the driving motor specifically includes: determining that the electric door pinches fingers if the current value of the driving motor is larger than a preset current value and/or a change value of the closed position information within a second preset time period is smaller than a preset change value.
  • the method further includes: alarm prompting via an alarm, such that others are informed of a finger-pinching accident by the alarm prompt, so as to take a corresponding action; and controlling the driving motor to run after a third preset time period to open the electric door, such that the user may take out fingers and the machine returns to normal operation.
  • a washing machine includes: a cabinet; an electric door disposed on the cabinet and a driving motor configured to drive the electric door ; a position sensor configured to detect closed position information of the electric door; a current sensor configured to detect a current value of the driving motor; and a controller configured to determine whether the electric door pinches fingers according to the closed position information and/or the current value of the driving motor, and to control the driving motor to stop running if the electric door pinches fingers.
  • the controller is configured to determine whether the electric door pinches fingers according to the closed position information of the electric door and the current value of the driving motor. That is, it is possible to conduct a unilateral detection or a double detection which is more reliable compared with the single detection means in the related art, such that it is possible to determine whether fingers are pinched in case of the failure of the unilateral detection, so as to improve the security of the washing machine.
  • the position sensor is configured as an angle sensor for detecting a closed angle of the electric door, and the controller obtains the closed position information according to the closed angle.
  • the controller is further configured to determine that the electric door pinches fingers if the current value of the driving motor is larger than a preset current value and/or the closed position information does not vary within a first preset time period.
  • the controller is further configured to determine that the electric door pinches fingers if the current value of the driving motor is larger than a preset current value and/or a change value of the closed position information within a second preset time period is smaller than a preset change value.
  • the washing machine further includes an alarm controlled by the controller for giving an alarm prompt after the driving motor stops running. That is, others are informed of a finger-pinching accident by the alarm prompt, so as to take a corresponding action.
  • the controller is further configured to control the driving motor to run after a third preset time period to open the electric door, such that the user may take out fingers and the machine returns to normal operation.
  • Embodiments of the present invention provide a new drive control method for anti-pinching, so as to improve the security of washing machines.
  • the washing machine includes an electric door and a driving motor for the electric door which is driven to open or close by the driving motor.
  • Fig. 1 is a flow chart of an anti-pinching control method for an electric door of a washing machine according to an embodiment of the present invention. As shown in Fig. 1 , the method includes the following steps.
  • S1 closed position information of the electric door of the washing machine is obtained, and a current value of a driving motor of the electric door is detected.
  • the washing machine may be provided with an angle sensor configured to detect an open/closed angle of the electric door.
  • the electric door has different open/closed angles corresponding to different open/closed positions. That is, it is possible to obtain the angle information via the angle sensor to determine the open/closed position.
  • the closed angle of the electric door is detected via the angle sensor, so as to obtain the corresponding closed position information according to the closed angle, and thus determine the status of the electric door according to the closed position information.
  • the electric door is driven to open or close by the driving motor, and it is possible to obtain the current value of the driving motor by detecting the current value of a driver of the driving motor.
  • S2 it is determined whether the electric door pinches fingers according to the closed position information and/or the current value of the driving motor.
  • the electric door may be automatically opened or closed to a corresponding open/closed position according to the preset open/closed position information, so as to control the electric door to stop movement and to realize normal control of the opening or closing of the electric door.
  • the driving motor will stall and the current value of the driving motor will be increased instantly, such that it is possible to determine whether the electric door pinches fingers according to the change in the current value.
  • the angle sensor is configured to detect the closed position information of the electric door, and the position information fed back from the angle sensor does not vary or suddenly varies slowly in a case of finger-pinching.
  • the anti-pinching control method may judge whether fingers are pinched according to either the closed position information or the current value of the driving motor; and may perform double detection by means of the closed position information fed back from the angle sensor and the change in the current value of the driving motor, so as to adjust the opening or closing speed of the electric door to realize the anti-pinching function.
  • the electric door pinches fingers when the electric door is closed, it is determined that the electric door pinches fingers if the current value of the driving motor is larger than a preset current value and/or the closed position information does not vary within a first preset time period. In other words, it is determined that the electric door pinches fingers if the current value of the driving motor is larger than the preset current value (i.e. motor stalling); or it is determined that the electric door pinches fingers if the closed position information (e.g., the closed angle) does not vary within the first preset time period; or it is determined that the electric door pinches fingers if the current value of the driving motor is larger than the preset current value and the closed position information does not vary within the first preset time period.
  • the preset current value i.e. motor stalling
  • the closed position information e.g., the closed angle
  • the electric door pinches fingers when the electric door is closed, it is determined that the electric door pinches fingers if the current value of the driving motor is larger than the preset current value and/or a change value of the closed position information within a second preset time period is smaller than a preset change value.
  • the electric door pinches fingers if the current value of the driving motor is larger than the preset current value (i.e. motor stalling); or it is determined that the electric door pinches fingers if the change value of the closed position information (e.g., the closed angle) within the second preset time period is smaller than the preset change value, i.e. a slow change; or it is determined that the electric door pinches fingers if the current value of the driving motor is larger than the preset current value and the closed position information of the electric door within the second preset time period changes slowly.
  • S3 the driving motor is controlled to stop running if the electric door pinches fingers, so as to prevent the electric door from continuing closing and thus avoid injuries.
  • a micro control unit conducts communication through a serial port.
  • the driving motor stalls, the current value of the driver of the driving motor is increased immediately.
  • the MCU will automatically control the driving motor to stop running and report that the stalling is detected.
  • the MCU obtains the angle information detected by the angle sensor.
  • a program activates a timer to scan the angle information. If the detected value of the angle sensor does not change or changes too slowly within a designated time period, it is determined that the driving motor stalls. In such a case, an instruction of stopping the motor is given out to control the driving motor to stop running, so as to prevent the electric door from continuing closing and to avoid injuries of fingers.
  • Fig. 3 is a flow chart of an anti-pinching control method for an electric door of a washing machine according to a specific embodiment of the present invention.
  • the method includes: step 100, activating the driving motor to enter step 110 and step 120 respectively; step 110, determining whether the angle of the electric door changes, if yes, entering step 130, and if no, entering step 140; step 120, determining whether the current value of the driver of the driving motor is increased instantly, for example, greater than the preset current value, if yes, entering step 140, and if no, continuing this step; step 130, determining whether the angle of the electric door reaches the open/closed position, if yes, entering step 140, otherwise returning to step 110; step 140, controlling the driving motor to stop.
  • an alarm gives an alarm prompt.
  • others are informed of a finger-pinching accident by the alarm prompt, so as to take a corresponding action.
  • the driving motor is controlled to run after a third preset time period since the driving motor stops operation, in order to open the electric door, such that the user may take out fingers and the machine returns to normal operation.
  • embodiments of another aspect of the present invention provide a washing machine.
  • Fig. 4 is a block diagram of a washing machine according to an embodiment of the present invention.
  • a washing machine 100 includes a cabinet 10, an electric door 20, a driving motor 30, a position sensor 40, a current sensor 50 and a controller 60.
  • the electric door 20 is disposed on the cabinet 10; the driving motor 30 is configured to drive the electric door 20; the position sensor 40 is configured to detect closed position information of the electric door 20; and the current sensor 50 is configured to detect a current value of the driving motor 30.
  • the position sensor 40 may be configured as an angle sensor for detecting a closed angle of the electric door; and the controller 60 obtains the closed position information according to the closed angle.
  • the electric door 20 is driven to open or close by the driving motor 30.
  • the current sensor 50 may detect the current value of a driver of the driving motor 30, so as to obtain the current value of the driving motor 30.
  • the controller 60 is configured to determine whether the electric door 20 pinches fingers according to the closed position information and/or the current value of the driving motor 30, and to control the driving motor 30 to stop running if the electric door 20 pinches fingers.
  • the controller 60 controls the electric door 20 to automatically open or close to a corresponding open/closed position according to the preset open/closed position information, so as to control the electric door 20 to stop movement and to realize normal control of the opening or closing of the electric door 20.
  • the driving motor 30 will stall and the current value of the driving motor 30 will be increased instantly, such that it is possible to determine whether the electric door 20 pinches fingers according to the change in the current value.
  • the angle sensor is configured to detect the closed position information of the electric door 20, and the position information fed back from the angle sensor does not vary or suddenly varies slowly in a case of finger-pinching.
  • the washing machine 100 may perform the double detection according to the angle detected by the angle sensor and the change in the current value of the driving motor 30, so as to adjust the opening or closing speed of the electric door 200 to realize the anti-pinching function.
  • the controller 60 determines that the electric door 20 pinches fingers if the current value of the driving motor 30 is larger than a preset current value and/or the closed position information of the electric door 20 does not vary within a first preset time period; or the controller 60 determines that the electric door 20 pinches fingers if the current value of the driving motor 30 is larger than a preset current value and/or a change value of the closed position information within a second preset time period is smaller than a preset change value.
  • the controller 60 determines whether the electric door 20 pinches fingers according to the closed position information of the electric door 20 and the current value of the driving motor 30, which is a double detection and thus is more reliable compared with the single detection means in the related art, such that it is possible to determine whether fingers are pinched in case of the failure of the unilateral detection, so as to improve the security of the washing machine 100.
  • the washing machine 100 further includes an alarm 70.
  • the controller 60 controls the alarm 70 to give an alarm prompt. That is, others are informed of a finger-pinching accident by the alarm prompt, so as to take a corresponding action.
  • the controller 60 controls the driving motor 30 to run after a third preset time period to open the electric door 20, such that the user may take out fingers and the washing machine 100 returns to normal operation.
  • the flow chart or any process or method described herein in other manners may represent a module, segment, or portion of code that comprises one or more modules, segments or portions of codes of executable instructions for achieving specific logical functions or steps in the process, and the scope of a preferred embodiment of the present invention includes other implementations, and the functions may be implemented in a substantially same manner or a reverse sequence beside the sequences shown or discussed herein, according to the functions involved, which should be understood by those skilled in the art.
  • the logic and/or step described in other manners herein or shown in the flow chart, for example, a particular sequence table of executable instructions for realizing the logical function may be specifically achieved in any computer readable medium to be used by the instruction execution system, device or equipment (such as the system based on computers, the system comprising processors or other systems capable of obtaining the instruction from the instruction execution system, device and equipment and executing the instruction), or to be used in combination with the instruction execution system, device and equipment.
  • the computer readable medium may be any device adaptive for including, storing, communicating, propagating or transferring programs to be used by or in combination with the instruction execution system, device or equipment.
  • the computer readable medium comprise but are not limited to: an electronic connection (an electronic device) with one or more wires, a portable computer enclosure (a magnetic device), a random access memory (RAM), a read only memory (ROM), an erasable programmable read-only memory (EPROM or a flash memory), an optical fiber device and a portable compact disk read-only memory (CDROM).
  • the computer readable medium may even be a paper or other appropriate medium capable of printing programs thereon, this is because, for example, the paper or other appropriate medium may be optically scanned and then edited, decrypted or processed with other appropriate methods when necessary to obtain the programs in an electric manner, and then the programs may be stored in the computer memories.
  • each part of the present invention may be realized by the hardware, software, firmware or their combination.
  • a plurality of steps or methods may be realized by the software or firmware stored in the memory and executed by the appropriate instruction execution system.
  • the steps or methods may be realized by one or a combination of the following techniques known in the art: a discrete logic circuit having a logic gate circuit for realizing a logic function of a data signal, an application-specific integrated circuit having an appropriate combination logic gate circuit, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.
  • first and second are used herein for purposes of description and are not intended to indicate or imply relative importance or significance or to imply the number of indicated technical features.
  • the feature defined with “first” and “second” may comprise one or more of this feature.
  • a plurality of means two or more than two, unless specified otherwise.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
EP16166395.0A 2015-08-12 2016-04-21 Machine à laver et procédé de commande de protection anti-coincement pour leur porte électrique Withdrawn EP3130696A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510492725.1A CN105063958B (zh) 2015-08-12 2015-08-12 洗衣机及其电动门的防夹手控制方法

Publications (1)

Publication Number Publication Date
EP3130696A1 true EP3130696A1 (fr) 2017-02-15

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Family Applications (1)

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EP16166395.0A Withdrawn EP3130696A1 (fr) 2015-08-12 2016-04-21 Machine à laver et procédé de commande de protection anti-coincement pour leur porte électrique

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EP (1) EP3130696A1 (fr)
CN (1) CN105063958B (fr)

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DE102017221258A1 (de) * 2017-11-28 2019-05-29 BSH Hausgeräte GmbH Haushaltsgeschirrspülmaschine und Verfahren zum Betreiben einer Haushaltsgeschirrspülmaschine
CN110230166A (zh) * 2018-03-06 2019-09-13 青岛海尔滚筒洗衣机有限公司 衣物处理设备的控制系统及控制方法
EP3633271A1 (fr) * 2018-10-01 2020-04-08 Electrolux Appliances Aktiebolag Système de surveillance de porte d'un appareil électroménager
DE102021100347A1 (de) 2021-01-12 2022-07-14 Miele & Cie. Kg Haushaltsgerät, insbesondere Geschirrspülmaschine
CN114947655A (zh) * 2022-05-17 2022-08-30 安克创新科技股份有限公司 机器人控制方法、装置、机器人和计算机可读存储介质
US12084803B2 (en) 2021-06-15 2024-09-10 Whirlpool Corporation Laundry appliance with sliding door system

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CN107022882B (zh) * 2016-02-02 2020-03-17 青岛海尔洗衣机有限公司 一种洗衣机上盖自动开关控制装置及方法
KR20170128958A (ko) * 2016-05-16 2017-11-24 엘지전자 주식회사 의류처리장치
CN109898297A (zh) * 2017-12-08 2019-06-18 博西华电器（江苏）有限公司 衣物护理机
CN110093744B (zh) * 2018-01-29 2021-07-06 重庆海尔洗衣机有限公司 顶开式衣物处理设备的关盖检测控制系统和方法
TWI656989B (zh) * 2018-03-12 2019-04-21 光陽工業股份有限公司 電動車電池盒開啟與收納控制方法及其裝置
CN108731218B (zh) * 2018-06-01 2020-03-06 珠海格力电器股份有限公司 控制系统、空调器及空调器的控制方法
CN109025645A (zh) * 2018-09-17 2018-12-18 北京市地铁运营有限公司 一种地铁屏蔽门的安全控制方法及系统
CN111074492A (zh) * 2018-10-18 2020-04-28 无锡飞翎电子有限公司 衣物处理装置及该衣物处理装置的防夹手系统
CN109736045B (zh) * 2018-11-30 2020-08-11 无锡小天鹅电器有限公司 设备运行控制方法、装置和衣物处理装置
CN109402946B (zh) * 2018-11-30 2019-12-17 无锡小天鹅电器有限公司 设备运行控制方法、装置和衣物处理装置
CN111441150B (zh) * 2020-03-23 2023-03-24 青岛海尔洗衣机有限公司 一种家用电器门体的控制方法
CN111697911A (zh) * 2020-06-30 2020-09-22 浙江大华技术股份有限公司 电机控制方法及相关设备、装置
CN113089257B (zh) * 2021-03-05 2021-11-16 珠海格力电器股份有限公司 洗衣机过流故障检测、门盖及其异常检测的方法和装置

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DE102017221258A1 (de) * 2017-11-28 2019-05-29 BSH Hausgeräte GmbH Haushaltsgeschirrspülmaschine und Verfahren zum Betreiben einer Haushaltsgeschirrspülmaschine
CN110230166A (zh) * 2018-03-06 2019-09-13 青岛海尔滚筒洗衣机有限公司 衣物处理设备的控制系统及控制方法
EP3633271A1 (fr) * 2018-10-01 2020-04-08 Electrolux Appliances Aktiebolag Système de surveillance de porte d'un appareil électroménager
WO2020069824A1 (fr) * 2018-10-01 2020-04-09 Electrolux Appliances Aktiebolag Système de surveillance pour porte d'appareil ménager et appareil ménager doté d'un tel système
DE102021100347A1 (de) 2021-01-12 2022-07-14 Miele & Cie. Kg Haushaltsgerät, insbesondere Geschirrspülmaschine
US12084803B2 (en) 2021-06-15 2024-09-10 Whirlpool Corporation Laundry appliance with sliding door system
CN114947655A (zh) * 2022-05-17 2022-08-30 安克创新科技股份有限公司 机器人控制方法、装置、机器人和计算机可读存储介质

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