JP2018153613A - Washing and drying apparatus and information processing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a washing and drying apparatus and an information processing method capable of improving safety.SOLUTION: A washing machine 1 comprises: a drum 3 which accommodates an object to be washed or dried and performs a rotary movement; a motor 7 for rotary driving the drum 3; a control part 20 which controls the rotation of the motor 7; and a current measurement part 11 which measures a value of current flowing to the motor 7. The control part 20 controls the rotation of the motor 7 so as to rotate the drum 3 by less than one rotation and comprises: a foreign matter detection part 201 which detects a foreign matter that is different from the object and has a mass heavier than a supposed mass of the object in the drum 3 based on a value of current measured by the current measurement part 11; and a stop part 202 for stopping the operation of the washing machine 1 when a foreign matter is detected by the foreign matter detection part 201.SELECTED DRAWING: Figure 3

Description

  The present disclosure relates to a washing and drying apparatus and an information processing method.

  In general, the washing machine measures the amount of cloth stored in the washing tub before starting washing, and supplies water in accordance with the measured amount of cloth. In addition, a series of washing steps such as rinsing and dehydration are appropriately performed according to the measured amount of cloth. In general, the amount of cloth is measured by detecting the rotational speed or rotational speed of a drum in the washing tub. In addition, the measurement of the amount of cloth is characterized in that if the amount of cloth is large, the measurement accuracy cannot be increased unless the rotation speed of the drum is increased to some extent.

  Among conventional cloth amount measuring methods, there is a method of measuring the cloth amount by changing the number of rotations of the drum for a certain purpose. Patent document 1 is mentioned as one of the conventional cloth amount measuring methods. For example, the washing machine of Patent Literature 1 first measures the amount of cloth by rotating a drum at a low rotation speed in order to suppress noise. If it is determined that the amount of cloth is small in the measurement of the amount of cloth by the rotation at the low rotation speed, the measurement accuracy is sufficient even at the low rotation speed, and the measurement of the cloth amount is terminated. On the other hand, when it is determined that the amount of cloth is large, the rotation amount is increased and the cloth amount is measured again.

  Also, for example, the washing machine of Patent Document 2 measures the amount of cloth in four stages by rotating the drum a total of 6 times in about 3 to 4 seconds before supplying water to the washing tub. A rough amount of cloth is presented to the user in a short time.

Japanese Patent No. 3691282 JP-A-4-44799

  However, in the above conventional technique, improvement in safety has been required.

  A laundry drying apparatus according to an aspect of the present disclosure includes a drum that accommodates an object to be washed or dried and performs a rotational motion, a motor that rotationally drives the drum, a control unit that controls rotation of the motor, A washing / drying device for washing or drying the object, wherein the control unit rotates the drum less than one rotation. A foreign object having a mass different from that of the object in the drum and heavier than an assumed mass of the object based on the current value measured by the current measuring unit. 1 detection part and the stop part which stops operation | movement of the said washing-drying apparatus when the said foreign material is detected by the said 1st detection part.

  According to the present disclosure, the operation of the apparatus can be stopped when a foreign object is accommodated in the drum even when the user cannot or cannot confirm the inside of the drum, thereby improving safety. It becomes possible.

It is sectional drawing which shows schematic structure of the washing machine in Embodiment 1 of this indication. It is a figure which shows schematic structure of the remote control system of the washing machine in Embodiment 1 of this indication. It is a block diagram which shows the structure of the washing machine in Embodiment 1 of this indication. In Embodiment 1, it is a figure for demonstrating operation | movement of the cloth amount detection process used for a washing machine. In Embodiment 1, it is a figure for demonstrating operation | movement of the foreign material detection process used for a washing machine. In the modification of this Embodiment 1, it is a figure for demonstrating operation | movement of the foreign material detection process used for a washing machine. It is a flowchart which shows an example of operation | movement of the washing machine in Embodiment 1 of this indication. It is a block diagram which shows the structure of the washing machine in Embodiment 2 of this indication. It is a flowchart which shows an example of operation | movement of the washing machine in Embodiment 2 of this indication.

(Knowledge that became the basis of this disclosure)
As described above, the conventional washing machine first measures the amount of cloth by rotating the drum at a low rotation speed in order to suppress noise. If it is determined that the amount of cloth is small in the measurement of the amount of cloth by the rotation at the low rotation speed, the measurement accuracy is sufficient even at the low rotation speed, and the measurement of the cloth amount is terminated. On the other hand, when it is determined that the amount of cloth is large, the rotation amount is increased and the cloth amount is measured again.

  Another conventional washing machine measures the amount of cloth in four stages by rotating the drum a total of 6 times in about 3 to 4 seconds before supplying water to the washing tub. A rough amount of cloth is presented to the user.

  Here, the conventional washing machine has a problem that a child may enter the washing tub and be involved in the washing process. Furthermore, it is expected that a service for remotely operating the washing machine will appear in the future, and it is expected that the number of cases where the user cannot confirm the state in the washing tub at the start of washing will increase. Although it is conceivable to use a weight sensor to detect a foreign object such as a child, if the weight sensor is separately provided in the washing machine, the cost of the washing machine increases.

  In the conventional method for measuring the amount of cloth, it is possible to measure the mass of clothes in the washing tub, but in order to measure the amount of cloth by rotating the drum in the washing tub, if there are children in the washing tub, There is a high possibility that the laundry tub rotates with children in the laundry tub. For example, in Patent Document 1, since the drum is rotated at a rotational speed of about 600 rpm even in the first cloth amount measurement at a low rotational speed, there is a possibility of injury if there is a child in the washing tub. In the cloth amount measuring method disclosed in Patent Document 2, although the rotation speed and the rotation time are short, it is difficult to say that the inside of the washing tub is safe because the drum needs to be rotated six times in total on the left and right.

  In order to solve the above problems, a washing and drying apparatus according to an aspect of the present disclosure includes a drum that accommodates an object to be washed or dried and performs a rotational motion, a motor that rotationally drives the drum, A washing and drying apparatus for washing or drying the object, comprising: a control unit that controls rotation; and a current measurement unit that measures a current value supplied to the motor, wherein the control unit includes the drum The rotation of the motor is controlled so as to rotate less than one rotation, and based on the current value measured by the current measuring unit, the object is different from the object in the drum and is based on the assumed mass of the object. A first detection unit that detects a foreign matter having a heavy mass; and a stop unit that stops the operation of the washing and drying apparatus when the foreign matter is detected by the first detection unit.

  According to this configuration, the object to be washed or dried is accommodated and rotated by the drum. The drum is driven to rotate by the motor. The rotation of the motor is controlled by the control unit. The current measurement unit measures a current value supplied to the motor. Then, the rotation of the motor is controlled to rotate the drum less than one rotation, and based on the current value measured by the current measuring unit, the mass is different from the object in the drum and heavier than the assumed mass of the object. A foreign object is detected. When a foreign object is detected, the operation of the washing / drying apparatus stops.

  Therefore, it is determined whether or not foreign matter is contained in the drum with a small number of revolutions of the drum of less than one revolution, and if it is determined that foreign matter is contained, the operation is automatically stopped. Even in a situation where the user cannot or cannot confirm the inside of the drum (such as when the operation is started based on a reservation), the washing / drying apparatus can be operated safely. Moreover, a foreign object can be detected without an additional configuration such as a weight sensor.

  In the washing and drying apparatus, the first detection unit controls rotation of the motor to rotate the drum by less than a half rotation, and the drum is based on the current value measured by the current measurement unit. The foreign matter inside may be detected.

  According to this configuration, since the rotation of the motor is controlled so that the drum is rotated less than a half rotation, foreign matter in the drum can be detected more safely.

  In the washing and drying apparatus, the first detection unit controls the rotation of the motor so as to rotate the drum at a rotation speed slower than the rotation speed of the drum when the amount of the object is detected. The foreign matter in the drum may be detected based on the current value measured by the current measuring unit.

  According to this configuration, the rotation of the motor is controlled so as to rotate the drum at a rotation speed slower than the rotation speed of the drum when detecting the amount of the object, and the foreign matter in the drum is based on the measured current value. Therefore, the foreign matter in the drum can be detected more safely.

  Further, in the above-described washing and drying apparatus, when the current value measured by the current measurement unit when the first detection unit rotates the drum less than one rotation is greater than or equal to a predetermined threshold, The foreign matter may be detected.

  According to this configuration, if the current value measured by the current measuring unit when the drum is rotated less than one revolution is equal to or greater than the predetermined threshold, foreign matter in the drum is detected.

  Therefore, the foreign matter in the drum can be easily detected by comparing the current value measured by the current measuring unit when the drum is rotated less than one rotation with the predetermined threshold value.

  In the laundry drying apparatus, the predetermined threshold may be a current value corresponding to a weight exceeding a maximum capacity of the object that can be processed by the laundry drying apparatus.

  According to this configuration, the current value measured by the current measuring unit when the drum is rotated less than one rotation is equal to or greater than the current value corresponding to the weight exceeding the maximum capacity of the object that can be processed by the washing and drying apparatus. In this case, foreign matter in the drum is detected.

  Therefore, it is possible to detect that a foreign object having a weight exceeding the maximum capacity of the object that can be processed by the washing / drying apparatus, for example, a child is contained in the drum.

  The washing and drying apparatus may further include a notification unit that notifies that the foreign matter is contained in the drum when the foreign matter is detected by the first detection unit.

  According to this configuration, when a foreign object is detected, it is notified that the foreign object is contained in the drum, so that the user can know that the foreign object is contained in the drum.

  In the washing and drying apparatus, the control unit further includes a second detection unit that detects the amount of the object from the current value measured by the current measurement unit, and the first detection unit includes the first detection unit, The foreign matter in the drum may be detected before the amount of the object is detected by the second detection unit.

  According to this configuration, the amount of the object is detected from the current value measured by the current measuring unit. The foreign matter in the drum is detected before the amount of the object is detected.

  Therefore, before detecting the amount of the object, a foreign object different from the object can be detected, and the amount of the object can be detected safely.

  In the above-described washing and drying apparatus, the washing and drying apparatus is a washing machine, and a laundry reservation instruction for reserving a time for washing the object with respect to the washing and drying apparatus or the object with respect to the washing and drying apparatus. A communication unit that receives a washing start instruction for starting washing of an object from an external device connected via a network, wherein the first detection unit receives the washing reservation instruction or the washing start instruction by the communication unit; If received, the foreign matter in the drum may be detected before reserving the time for washing the object or before starting washing the object.

  According to this configuration, the washing / drying apparatus is a washing machine. A laundry reservation instruction for reserving the time for washing the object to the washing / drying apparatus or a washing start instruction for starting washing of the object to the washing / drying apparatus is received from an external device connected via the network. . When the washing reservation instruction or the washing start instruction is received, the foreign matter in the drum is detected before the time for washing the object is reserved or before the washing of the object is started.

  Therefore, when the user remotely operates the washing / drying apparatus, the foreign matter in the drum can be detected before the time for washing the object is reserved or before the washing of the object is started.

  In the washing and drying apparatus, the communication unit may send notification information for notifying that the foreign matter is contained in the drum when the foreign matter is detected by the first detection unit. It may be sent to the device.

  According to this configuration, when a foreign object is detected, notification information for notifying that a foreign object is contained in the drum is transmitted to the external device.

  Therefore, it is possible to notify the user who possesses the external device that a foreign object is contained in the drum.

  In the above washing and drying apparatus, the communication unit sends a foreign object detection instruction to the first detection unit to detect the foreign object in the drum again after transmitting the notification information to the external device. When the foreign object detection instruction is received, the first detection unit controls rotation of the motor to rotate the drum less than one rotation, and the current value measured by the current measurement unit is received from the device. The foreign matter in the drum may be detected again.

  According to this configuration, after the notification information is transmitted to the external device, a foreign matter detection instruction for detecting the foreign matter in the drum again is received from the external device. When the foreign object detection instruction is received, the rotation of the motor is controlled to rotate the drum less than one rotation, and the foreign object in the drum is detected again based on the measured current value.

  Therefore, the foreign matter in the drum is detected again, so that erroneous detection of the foreign matter can be prevented.

  Further, in the above-described washing / drying apparatus, the washing / drying apparatus is a washing machine, and a remote operation mode setting is set to a remote operation mode permitting remote operation of the washing / drying apparatus by an external device connected via a network And a laundry reservation instruction for causing the washing / drying apparatus to reserve a time for washing the object or a washing start instruction for causing the laundry / drying apparatus to start washing of the object from the external device. A communication unit; and when the remote operation mode setting unit sets the remote operation mode, the first detection unit controls rotation of the motor to rotate the drum less than one rotation, The current value measured by a current measuring unit is acquired as a first current value, the acquired first current value is stored in a storage unit, and the communication unit is When the washing reservation instruction or the washing start instruction is received, the drum is rotated by less than one rotation before the washing time of the object is reserved or before the washing of the object is started. The rotation of the motor is controlled, the current value measured by the current measuring unit is acquired as a second current value, the acquired second current value, and the first value stored in the storage unit The difference between the current value is calculated, it is determined whether or not the calculated difference is equal to or less than a predetermined threshold, and when the difference is determined to be larger than the predetermined threshold, the foreign matter in the drum is detected. May be.

  According to this configuration, the washing / drying apparatus is a washing machine. A remote operation mode for permitting remote operation of the washing and drying apparatus by an external device connected via the network is set. A laundry reservation instruction for reserving the time for washing the object with respect to the laundry drying apparatus or a laundry start instruction for starting the washing of the object with respect to the laundry drying apparatus is received from the external device. When the remote operation mode is set, the rotation of the motor is controlled to rotate the drum less than one rotation. The current value measured by the current measuring unit is acquired as the first current value. The acquired first current value is stored in the storage unit. When a washing reservation instruction or a washing start instruction is received, the rotation of the motor is controlled to rotate the drum less than one revolution before reserving the time for washing the object or before starting washing of the object. The current value measured by the current measuring unit is acquired as the second current value. A difference between the acquired second current value and the first current value stored in the storage unit is calculated. It is determined whether or not the calculated difference is equal to or smaller than a predetermined threshold. If it is determined that the difference is larger than the predetermined threshold, foreign matter in the drum is detected.

  Therefore, the first current value measured when the drum is rotated less than one revolution at the time when the remote operation mode for permitting remote operation by the external device is set, and the laundry reservation instruction or the washing start instruction from the external device. When the difference from the second current value measured when the drum is rotated less than one revolution at the time of reception is larger than a predetermined threshold, foreign matter in the drum is detected, so that the inside of the drum can be detected with higher accuracy. Can detect foreign matter.

  In the washing and drying apparatus, the drum may have a rotation center axis in a horizontal direction, or may have a rotation center axis in an inclined direction inclined with respect to the horizontal direction.

  According to this configuration, foreign matter in the drum having the rotation center axis in the horizontal direction or in the drum having the rotation center axis in the inclined direction inclined with respect to the horizontal direction can be detected.

  An information processing method according to another aspect of the present disclosure includes a drum that stores an object to be washed or dried and performs a rotational motion, a motor that rotationally drives the drum, a control unit that controls rotation of the motor, An information processing method in a washing / drying apparatus for washing or drying the object comprising a current measuring unit for measuring a current value to be supplied to the motor, wherein the motor is configured to rotate the drum less than one rotation. Rotation is controlled, and based on the current value measured by the current measuring unit, a foreign object having a mass different from the object in the drum and heavier than an assumed mass of the object is detected, When the foreign matter is detected, the operation of the washing and drying apparatus is stopped.

  According to this configuration, the object to be washed or dried is accommodated and rotated by the drum. The drum is driven to rotate by the motor. The rotation of the motor is controlled by the control unit. The current measurement unit measures a current value supplied to the motor. Then, the rotation of the motor is controlled to rotate the drum less than one rotation, and based on the current value measured by the current measuring unit, the mass is different from the object in the drum and heavier than the assumed mass of the object. A foreign object is detected. When a foreign object is detected, the operation of the washing / drying apparatus stops.

  Therefore, it is determined whether or not foreign matter is contained in the drum with a small number of revolutions of the drum of less than one revolution, and if it is determined that foreign matter is contained, the operation is automatically stopped. Even in a situation where the user cannot or cannot confirm the inside of the drum (such as when the operation is started based on a reservation), the washing / drying apparatus can be operated safely. Moreover, a foreign object can be detected without an additional configuration such as a weight sensor.

  Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. Note that the following embodiment is an example in which the present disclosure is embodied, and does not limit the technical scope of the present disclosure.

(Embodiment 1)
FIG. 1 is a cross-sectional view illustrating a schematic configuration of the washing machine according to the first embodiment of the present disclosure. The washing machine 1 is a drum type washing machine as an example of a washing and drying apparatus.

  In the main body of the washing machine 1, the washing tub 2 is supported in a suspended state by a suspension structure having a vibration-proof structure. In the washing tub 2, a drum 3 formed in a bottomed cylindrical shape is supported with its axial direction inclined downward from the front side to the back side. On the front side of the washing tub 2, a clothing doorway 4 leading to the opening end of the drum 3 is formed, and the door 5 that opens and closes the opening provided in the upward inclined surface on the front side of the main body of the washing machine 1 is opened and closed. Thus, the laundry can be taken in and out of the drum 3 through the clothing entrance 4.

  The drum 3 accommodates an object to be washed or dried (for example, clothing) and rotates. The drum 3 has a rotation center axis in the inclined direction inclined with respect to the horizontal direction. The drum 3 is rotationally driven in the forward and reverse directions by a motor 7 attached to the back side of the washing tub 2. The washing tub 2 encloses the drum 3 in a rotatable manner and is elastically supported in the washing machine body. The washing tub 2 is connected with a water injection pipe 8 and a drain pipe 9 so that water is poured into and drained into the washing tub 2 by controlling the water injection valve and the drain valve. The drum 3 may have a rotation center axis in the horizontal direction or a rotation center axis in the vertical direction. The object to be washed or dried may be a cloth product or leather product other than clothing.

  When the door 5 is opened, laundry and detergent are put into the drum 3, and the operation is started by an operation on the operation panel 10 provided at the upper front of the main body of the washing machine 1, A predetermined amount of water is injected from the path 8, and the drum 3 is rotationally driven by the motor 7 to start the washing process. The motor 7 rotates the drum 3. By the rotation of the drum 3, the laundry stored in the drum 3 is lifted in the rotation direction by the stirring protrusion provided on the inner peripheral wall of the drum 3, and the stirring operation of dropping from the lifted appropriate height position is repeated. Therefore, the laundry has the effect of tapping and washing.

  After the required washing time, the dirty washing liquid is discharged from the drain pipe 9 and the washing liquid contained in the laundry is dehydrated by a dehydration operation of rotating the drum 3 at a high speed. Rinsing is performed by pouring water from the path 8. Also in this rinsing step, the laundry housed in the drum 3 is repeatedly washed with a stirring operation in which the laundry is lifted and dropped by the stirring protrusions by the rotation of the drum 3 to perform rinsing.

  In addition, a rotation detection unit 14 including a position detection element that detects the position of the rotor (rotor) of the motor 7 is provided inside the motor 7 in order to detect the rotation state thereof. The rotation detection unit 14 detects the number of rotations of the rotor (rotor) of the motor 7. The rotational speed of the rotor of the motor 7 is the rotational speed of the drum 3.

  In the drum type washing machine having the above-described configuration, the amount of clothes such as clothes put in the drum 3 is detected, and the washing time, the rinsing time, the dewatering time, and the like are determined according to the amount of cloth.

  FIG. 2 is a diagram illustrating a schematic configuration of the remote operation system for the washing machine according to the first embodiment of the present disclosure. The remote operation system includes a washing machine 1 to be remotely operated and a communication terminal 30 possessed by a user of the washing machine 1. The washing machine 1 is connected to the service server 34.

  The service server 34 transmits and receives information to and from various information terminal devices connected to the Internet 33.

  The Internet 33 and a public telephone network 31 constructed by a telephone company are connected to each other by a gateway system 32. The public telephone network 31 includes a wireless telephone network. The communication terminal 30 can be connected to the public telephone network 31 and is connected to the washing machine 1 through the public telephone network 31, the gateway system 32, the Internet 33, and the service server 34 so as to be communicable.

  The communication terminal 30 is, for example, a mobile phone, a smartphone, a tablet computer, or a personal computer. The communication terminal 30 transmits various information to the washing machine 1 and receives various information from the washing machine 1 to remotely operate the washing machine 1. The communication terminal 30 is an example of an external device.

  FIG. 3 is a block diagram illustrating a configuration of the washing machine according to the first embodiment of the present disclosure. FIG. 3 shows only the configuration related to the detection of foreign matter and the amount of cloth. The washing machine 1 is an example of a washing and drying device.

  The washing machine 1 includes a motor 7, an operation panel 10, a current measurement unit 11, a rotation detection unit 14, a control unit 20, a memory 21, and a communication unit 24.

  The control unit 20 is, for example, a CPU (central processing unit) mainly composed of a microcomputer. The control unit 20 controls the rotation of the motor 7. The memory 21 stores a control program or data for controlling the operation of the entire washing machine. The current measuring unit 11 measures a current value supplied to the motor 7. The control unit 20 is connected to the motor 7, the operation panel 10, the current measurement unit 11, the rotation detection unit 14, the memory 21, and the communication unit 24.

  The control unit 20 interprets instructions from the operation panel 10. For example, when measuring the amount of cloth, the control unit 20 rotates the drum 3 via the motor 7. The control unit 20 is connected to a rotation detection unit 14 that detects the rotation speed or the rotation speed of the motor 7. The detection result of the rotation detection unit 14 is stored in the memory 21 via the control unit 20. Further, the control unit 20 rotates the motor 7 by controlling the torque current. At this time, the current measuring unit 11 measures a torque current value when the motor 7 is rotated. The measurement result of the current measuring unit 11 is stored in the memory 21 via the control unit 20. The operation panel 10 includes, in addition to various operation switches of the washing machine, a display unit that displays a course of washing and drying operation or an execution time or a remaining time of each process. 2 is calculated from the amount of cloth in 2.

  The control unit 20 includes a foreign object detection unit 201, a stop unit 202, a cloth amount detection unit 203, and a notification unit 204.

  The foreign object detection unit 201 controls the rotation of the motor 7 to rotate the drum 3 less than one rotation, and is different from the object (clothing) in the drum 3 based on the current value measured by the current measurement unit 11 and A foreign object having a mass heavier than an assumed mass of the object is detected. Here, the foreign object is, for example, a child or an infant. Further, the foreign matter detection unit 201 controls the rotation of the motor 7 to rotate the drum 3 by less than a half rotation, and detects foreign matter in the drum 3 based on the current value measured by the current measurement unit 11.

  The foreign object detection unit 201 controls the rotation of the motor 7 to rotate the drum 3 less than one rotation, and is different from the object (clothing) in the drum 3 based on the current value measured by the current measurement unit 11 and It is determined whether or not a foreign object having a mass heavier than an assumed mass of the object is accommodated. Here, the foreign object is, for example, a child or an infant. The foreign matter detection unit 201 controls the rotation of the motor 7 so as to rotate the drum 3 by less than a half rotation, and determines whether or not foreign matter is contained in the drum 3 based on the current value measured by the current measurement unit 11. to decide.

  When detecting a weight exceeding the maximum capacity of clothing that can be processed by the washing machine 1, the foreign object detection unit 201 detects a foreign object in the drum 3. That is, the foreign matter detection unit 201 detects foreign matter in the drum 3 when the current value measured by the current measurement unit 11 when the drum 3 is rotated less than one rotation is equal to or greater than a predetermined threshold. At this time, the predetermined threshold value is a current value corresponding to a weight exceeding the maximum capacity of clothing that can be processed by the washing machine 1.

  The stop unit 202 stops the operation of the washing machine 1 and stops the rotation of the drum 3 when a foreign object is detected by the foreign object detection unit 201. The stop unit 202 stops the operation of the washing machine 1 and stops the rotation of the drum 3 when the foreign object detection unit 201 determines that the foreign object is contained.

  The cloth amount detection unit 203 detects the cloth amount of the clothing from the current value measured by the current measurement unit 11. The foreign matter detection unit 201 detects foreign matter in the drum 3 before the cloth amount detection unit 203 detects the amount of clothing.

  When the foreign matter is detected by the foreign matter detection unit 201, the notification unit 204 notifies that a foreign matter is contained in the drum 3.

  The washing machine 1 is connected to the service server 34 via the communication unit 24. The communication unit 24 receives instruction information from the external communication terminal 30 and outputs the received instruction information to the control unit 20. In addition, the communication unit 24 receives the control result from the control unit 20 and transmits the control result to the communication terminal 30. When a foreign object is detected by the foreign object detection unit 201, the communication unit 24 transmits notification information for notifying that a foreign object is contained in the drum 3 to the communication terminal 30.

  When using a remote operation system to be described later, the communication unit 24 assumes communication using Wi-Fi. In addition, when the remote operation from the house is assumed instead of the remote operation from the outside as in the remote operation system described later, the communication unit 24 performs communication using Bluetooth (registered trademark) instead of Wi-Fi. May be controlled.

  In addition, the communication unit 24 is a communication connected via a network with a washing reservation instruction for reserving a time for washing clothes to the washing machine 1 or a washing start instruction for starting washing of clothes for the washing machine 1. Receive from the terminal 30. The foreign object detection unit 201 detects a foreign object in the drum 3 before reserving a time for washing clothes or before starting washing of clothes when a washing reservation instruction or a washing start instruction is received by the communication unit 24. .

  Next, the foreign matter detection process and the cloth amount detection process of the washing machine 1 according to the first embodiment will be described.

  First, before explaining the foreign matter detection step in the first embodiment, an example of the cloth amount detection step in the first embodiment will be described. The cloth amount detection step in the first embodiment is the same as a general cloth amount detection step.

  FIG. 4 is a diagram for explaining the operation of the cloth amount detection step used in the washing machine in the first embodiment. In FIG. 4, the vertical axis represents the number of rotations (r / min), and the horizontal axis represents time (s).

  In the cloth amount detection step, first, the cloth amount detection unit 203 starts the motor 7, and the rotation detection unit 14 outputs the detection result to the cloth amount detection unit 203. The cloth amount detection step includes a first detection step and a second detection step.

  In the first detection step, the cloth amount detection unit 203 controls the torque-contributing current component Iq to accelerate the drum 3 with a constant angular acceleration α1 with respect to the motor 7, and the rotation speed of the drum 3 from N1 to N2. The acceleration current value Iq1 energized by the motor 7 is measured.

  After the first detection step, in the second detection step, the cloth amount detection unit 203 decelerates the drum 3 with a constant angular acceleration α2 with respect to the motor 7, and reduces the rotation speed of the drum 3 from N3 to N4. The deceleration current value Iq2 energized to the motor 7 is measured. The acceleration current value and the deceleration current value that are energized are large when the amount of cloth is large, and small when the amount of cloth is small. The cloth amount detection unit 203 detects the cloth amount using the fact that the current value supplied to the motor 7 is proportional to the cloth amount. That is, the memory 21 stores in advance a table in which the difference value between the acceleration current value and the deceleration current value and the cloth amount are associated with each other, and the cloth amount detection unit 203 uses the table to perform acceleration. The cloth amount is detected from the difference value between the current value Iq1 during deceleration and the current value Iq2 during deceleration.

  The cloth amount detection unit 203 can measure the cloth amount flexibly and determine the washing course suitable for the measured cloth amount even when the laundry amount in the drum 3 increases or decreases in the cloth amount detection process. . In addition, the measurement accuracy of the amount of cloth should just be an accuracy which can identify an optimal washing course from the measured amount of cloth.

  Next, the foreign object detection process in the first embodiment will be described.

  In the foreign matter detection process of the washing machine in the first embodiment, it is safely detected that a child is housed in the drum 3 even if the child is housed in the drum 3 before the cloth amount detection process. It is characterized by.

  As an example of the foreign matter detection process, the drum 3 is rotated at a rotational speed of less than half rotation, and the weight of the foreign matter in the drum 3 is measured.

  FIG. 5 is a diagram for explaining the operation of the foreign object detection step used in the washing machine in the first embodiment. In FIG. 5, the vertical axis represents the rotation speed (r / min), and the horizontal axis represents time (s).

  In the foreign object detection step, first, the foreign object detection unit 201 starts the motor 7, and the rotation detection unit 14 outputs the detection result to the foreign object detection unit 201.

  In the foreign matter detection step, the foreign matter detection unit 201 accelerates the drum 3 with a constant angular acceleration α3 with respect to the motor 7 and increases the rotational speed of the drum 3 from 0 to a rotational speed N5 of less than a half rotation. The acceleration current value Iq3 to be energized is measured. Note that whether or not the rotation of less than a half rotation has been performed can be determined from the time from the time t1 to the time t2 and information on the angular acceleration α3 and the rotation speed N5 that can be detected by the rotation detection unit 14. After the rotation less than a half rotation is performed, the foreign object detection unit 201 stops the rotation of the drum 3 via the motor 7. At this time, the foreign matter detection unit 201 determines whether or not a current value equal to or greater than a predetermined threshold is measured. When a current value equal to or greater than a predetermined threshold is measured, the foreign object detection unit 201 detects that an object having a weight equivalent to that of a child is contained in the drum 3 and temporarily stops the operation of the washing machine 1.

  After the operation of the washing machine 1 is temporarily stopped, the notification unit 204 notifies the user that there is a possibility that there is a child in the drum 3. As a notification method, the notification unit 204 may transmit information indicating that there is a possibility that there is a child in the drum 3 to the communication terminal 30 connected to the washing machine 1 via a network. Further, the notification unit 204 may be notified by generating a sound such as a buzzer from a speaker (not shown) provided in the washing machine 1 or may be notified by displaying a message or icon on the operation panel 10. .

  Subsequently, the foreign substance detection process in the modification of the first embodiment will be described.

  As a foreign matter detection step in the modification of the first embodiment, the child in the drum 3 may be detected by rotating the drum 3 at an ultra-low rotation speed that does not cause injury even if there is a child in the drum 3. .

  FIG. 6 is a diagram for explaining the operation of the foreign object detection step used in the washing machine in the modification of the first embodiment. In the foreign matter detection step in the modification of the first embodiment, not only the foreign matter in the drum 3 can be detected, but also the cloth amount can be detected. Therefore, the foreign object detection process in the modification of the first embodiment also functions as a cloth amount detection process.

  In the foreign object detection step, first, the foreign object detection unit 201 starts the motor 7, and the rotation detection unit 14 outputs the detection result to the foreign object detection unit 201. At this time, the foreign matter detection unit 201 controls the rotation of the motor 7 so as to rotate the drum 3 at a rotation speed slower than the rotation speed of the drum 3 when detecting the amount of clothes. The foreign matter detection step includes a first detection step and a second detection step.

  In the first detection step, the foreign matter detection unit 201 controls the torque contributing current component Iq to accelerate the drum 3 with a constant angular acceleration α4 with respect to the motor 7 and increases the rotation speed of the drum 3 from N6 to N7. The acceleration current value Iq4 energized by the motor 7 is measured.

  After the first detection step, in the second detection step, the foreign matter detection unit 201 decelerates the drum 3 with respect to the motor 7 at a constant angular acceleration α5, decreases the rotation speed from N8 to N9, and energizes the motor 7. The deceleration current value Iq5 is measured. At this time, it is assumed that the angular accelerations α4 and α5 are smaller than the angular accelerations α1 and α2 at the time of normal cloth amount detection shown in FIG. In addition, the rotation speed of the drum 3 when rotating at an ultra-low rotation speed is assumed to be a rotation speed (for example, 10 rpm) that does not cause injury even if the child rotates inside the drum. That is, the rotation speeds N6, N7, N8, and N9 are preferably 10 rpm or less, respectively.

  Further, the rotation speeds N6, N7, N8, and N9 may be rotation speeds equal to or less than 1/6 of the maximum rotation speed of the drum 3. For example, when the maximum rotation number of the drum 3 is 180 rpm, the rotation numbers N6, N7, N8, and N9 may be 30 rpm or less.

  After the acceleration current value Iq4 and the deceleration current value Iq5 are measured by the current measurement unit 11, the foreign matter detection unit 201 has a difference value between the acceleration current value Iq4 and the deceleration current value Iq5 equal to or greater than a predetermined threshold. Determine whether or not. When it is determined that the difference value between the acceleration current value Iq4 and the deceleration current value Iq5 is equal to or greater than a predetermined threshold, the foreign object detection unit 201 accommodates an object having a weight equivalent to that of a child in the drum 3. The operation of the washing machine 1 is temporarily stopped.

  After the operation of the washing machine 1 is temporarily stopped, the notification unit 204 notifies the user that there is a possibility that there is a child in the drum 3. As a notification method, the notification unit 204 may transmit information indicating that there is a possibility that there is a child in the drum 3 to the communication terminal 30 connected to the washing machine 1 via a network. Further, the notification unit 204 may be notified by generating a sound such as a buzzer from a speaker (not shown) provided in the washing machine 1 or may be notified by displaying a message or icon on the operation panel 10. . Note that the predetermined threshold value is a value based on actually measured data, and may be a value that can detect that an object that is clearly heavier than clothing is stored, assuming the weight of a child.

  On the other hand, when it is determined that the difference value between the acceleration current value Iq4 and the deceleration current value Iq5 is smaller than a predetermined threshold, the cloth amount detection unit 203 determines the difference between the acceleration current value Iq4 and the deceleration current value Iq5. The cloth amount is detected from the value.

  As described above, by executing the foreign matter detection step and the cloth amount detection step in the correct order, the foreign matter can be detected safely and appropriately, and the cloth amount can be detected.

  FIG. 7 is a flowchart illustrating an example of the operation of the washing machine according to the first embodiment of the present disclosure.

  First, the communication unit 24 receives a laundry reservation instruction from the communication terminal 30 (step S101). The communication unit 24 outputs the received laundry reservation instruction to the control unit 20. The laundry reservation instruction includes, for example, a scheduled time to start washing. The scheduled time for starting washing may be a time interval from the current time to the time for starting washing.

  In the first embodiment, in step S101, the communication unit 24 receives a laundry reservation instruction for reserving a time to wash clothes for the washing machine 1, but the present disclosure is particularly limited to this. Instead, the communication unit 24 may receive a washing start instruction that causes the washing machine 1 to start washing clothes. After the communication unit 24 receives the washing start instruction, the processes after step S102 may be performed.

  Next, the foreign matter detection unit 201 performs foreign matter detection processing for controlling the rotation of the motor 7 so as to rotate the drum 3 by less than a half rotation (step S102). The current measuring unit 11 measures a current value supplied to the motor 7.

  Next, the foreign object detection unit 201 determines whether or not the current value measured by the current measurement unit 11 is equal to or greater than a predetermined threshold (step S103). Here, when it is determined that the measured current value is equal to or greater than the predetermined threshold (YES in step S103), the stop unit 202 stops the operation of the washing machine 1 (step S104).

  Next, the alerting | reporting part 204 notifies the abnormality in a washing tub to the communication terminal 30 via the communication part 24 (step S105). At this time, the communication terminal 30 notified of the abnormality may transmit a foreign object detection instruction for causing the washing machine 1 to perform the foreign object detection process again to the washing machine 1. After transmitting the notification information to the communication terminal 30, the communication unit 24 may receive a foreign object detection instruction for causing the foreign object detection unit 201 to detect the foreign object in the drum 3 again from the communication terminal 30. When the foreign object detection instruction is received by the communication unit 24, the process returns to the process of step S102, and the foreign object detection unit 201 may perform the foreign object detection process again. That is, when a foreign object detection instruction is received, the foreign object detection unit 201 controls the rotation of the motor 7 to rotate the drum 3 by less than one rotation, and the drum 3 is based on the current value measured by the current measurement unit 11. The foreign matter inside may be detected again.

  On the other hand, when it is determined that the detected current value is smaller than the predetermined threshold value (NO in step S103), the cloth amount detection unit 203 rotates the drum 3 at the number of rotations for detecting the cloth amount. A cloth amount detection process for controlling the rotation of the cloth is performed (step S106). The current measuring unit 11 measures the value of the current that is passed through the motor 7 and outputs the detection result to the control unit 20. The cloth amount detection unit 203 detects the cloth amount of the clothing from the current value measured by the current measurement unit 11.

  Next, the cloth amount detection unit 203 determines whether or not the cloth amount is normally detected (step S107). If it is determined that the amount of cloth has been detected normally (YES in step S107), the control unit 20 determines a washing course corresponding to the amount of cloth detected by the cloth amount detector 203 (step S108). . The washing course is, for example, the amount of water according to the amount of cloth, the washing time, the rinsing time, and the dewatering time. At this time, the control unit 20 may notify the communication terminal 30 of the determined washing course via the communication unit 24.

  In addition, the control unit 20 stores the determined laundry course and the reservation time included in the laundry reservation instruction in the memory 21. When the current time is the reserved time stored in the memory 21, the control unit 20 starts washing at the determined washing course. In addition, when the washing start instruction is received in step S101, the control unit 20 starts washing at the determined washing course.

  On the other hand, when it is determined that the amount of cloth is not normally detected (NO in step S107), the stop unit 202 stops the operation of the washing machine 1 (step S104).

  Next, the alerting | reporting part 204 notifies the abnormality in a washing tub to the communication terminal 30 via the communication part 24 (step S105).

  As described above, according to the first embodiment, even in a situation where the user is in a remote place and it is not possible to confirm whether or not there is a child in the washing tub 2 at the time of washing reservation or at the start of washing, the washing machine 1 accommodates the child in the drum 3 When the safety in the drum 3 is secured, washing is continued, and when there is an abnormality in the drum 3, the washing can be stopped. Further, the washing machine 1 can detect an increase in the amount of cloth and present an appropriate washing course to the user even when additional clothes are put into the drum 3. Furthermore, in the information processing method according to the first embodiment, the conventional cloth amount detection technique can be used, and it is not necessary to introduce a new detection device, so that foreign matter in the drum 3 can be detected at low cost.

(Embodiment 2)
In the second embodiment, the configuration of the remote control system is the same as that shown in FIG.

  FIG. 8 is a block diagram illustrating a configuration of the washing machine according to the second embodiment of the present disclosure. The washing machine 1 'is an example of a washing and drying apparatus.

  The washing machine 1 ′ includes a motor 7, an operation panel 10, a rotation detection unit 14, a control unit 20, a memory 21, and a communication unit 24. In the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  The control unit 20 includes a foreign object detection unit 201, a stop unit 202, a cloth amount detection unit 203, a notification unit 204, and a remote operation mode setting unit 205.

  In the washing machine 1 ′ according to the second embodiment, in order to perform a remote operation from the external communication terminal 30, it is necessary to set the washing machine 1 ′ body in the remote operation mode in advance. The remote operation mode setting unit 205 sets a remote operation mode that permits remote operation of the washing machine 1 ′ by the communication terminal 30 connected via the network. For example, when a plurality of buttons included in the operation panel 10 are simultaneously pressed, the remote operation mode setting unit 205 sets the washing machine 1 ′ to the remote operation mode.

  When the washing machine 1 ′ is set to the remote operation mode, the communication terminal 30 can remotely operate the washing machine 1 ′. When the washing machine 1 ′ is not set to the remote operation mode, the communication terminal 30 performs communication. The terminal 30 cannot remotely control the washing machine 1 ′. In the second embodiment, it is necessary to set the remote operation mode directly on the main body of the washing machine 1 ′, and cannot be set from the communication terminal 30.

  The communication unit 24 receives from the communication terminal 30 a laundry reservation instruction that causes the washing machine 1 ′ to reserve a time for washing clothes or a laundry start instruction that causes the washing machine 1 ′ to start washing clothes.

  When the remote operation mode setting unit 205 sets the remote operation mode, the foreign object detection unit 201 controls the rotation of the motor 7 so that the drum 3 rotates less than one rotation, and the current value measured by the current measurement unit 11 is determined. Obtained as the first current value, and the obtained first current value is stored in the memory 21. When the washing reservation instruction or the washing start instruction is received by the communication unit 24, the foreign object detection unit 201 rotates the drum 3 less than one rotation before reserving the time for washing clothes or before starting washing clothes. The rotation of the motor 7 is controlled, the current value measured by the current measuring unit 11 is acquired as the second current value, the acquired second current value, and the first current value stored in the memory 21 The difference is calculated. Then, the foreign object detection unit 201 determines whether or not the calculated difference is equal to or smaller than a predetermined threshold value. When it is determined that the difference is larger than the predetermined threshold value, it is determined that a foreign object is contained in the drum 3. To do. Further, the foreign object detection unit 201 determines that no foreign object is contained in the drum 3 when it is determined that the difference is equal to or less than a predetermined threshold value.

  In the second embodiment, the foreign object detection process is performed in advance when setting the remote operation mode. Furthermore, when starting washing, the foreign object detection process is performed again, and the current measurement result in the foreign object detection process performed again is compared with the current measurement result in the foreign object detection process performed when the remote operation mode is set. By the above method, the current value measured at the start of washing is not compared with a predetermined threshold value set in advance, but the current value measured at the start of washing is compared with the most recently measured current value. The accuracy of detecting foreign matter can be improved.

  FIG. 9 is a flowchart illustrating an example of the operation of the washing machine according to the second embodiment of the present disclosure.

  First, the remote operation mode setting unit 205 sets the washing machine 1 'to the remote operation mode (step S201). The operation panel 10 of the washing machine 1 'accepts an operation by the user for setting the washing machine 1' to the remote operation mode. The remote operation mode setting unit 205 shifts the washing machine 1 ′ to the remote operation mode when a setting operation by the operation panel 10 is accepted.

  Next, the foreign matter detection unit 201 performs a first foreign matter detection process for controlling the rotation of the motor 7 so that the drum 3 is rotated less than half a turn (step S202). The current measuring unit 11 measures a first current value energized to the motor 7. The first foreign object detection process is the same process as the foreign object detection process in the first embodiment.

  Next, the foreign object detection unit 201 stores in the memory 21 the first current value measured by the current measurement unit 11 by performing the first foreign object detection process (step S203). At this time, the foreign object detection unit 201 may determine whether or not the measured first current value is equal to or greater than a predetermined threshold value. When it is determined that the measured first current value is equal to or greater than a predetermined threshold, the notification unit 204 may notify the communication terminal 30 of the abnormality in the washing tub via the communication unit 24. Further, the notification unit 204 may be notified by generating a sound such as a buzzer from a speaker (not shown) provided in the washing machine 1 ′, or may be notified by displaying a message or icon on the operation panel 10. Good.

  Next, the communication unit 24 receives from the communication terminal 30 an instruction to start washing that causes the washing machine 1 'to start washing clothes (step S204). The communication unit 24 outputs the received washing start instruction to the control unit 20. Note that the washing machine 1 ′ is in a standby state until the washing start instruction is received after the first current value is stored, and when a predetermined time (for example, 24 hours) has elapsed, another operation panel 10 is used. When the operation is accepted, or when another operation instruction is received from the communication terminal 30, the operation of the washing machine 1 ′ may be terminated.

  When the washing start instruction is received by the communication unit 24, the foreign object detection unit 201 performs a second foreign object detection process for controlling the rotation of the motor 7 so as to rotate the drum 3 by less than a half rotation (step S205). The current measuring unit 11 measures a second current value energized to the motor 7. The second foreign object detection process is the same process as the foreign object detection process in the first embodiment.

  Next, the foreign matter detection unit 201 has a second current value obtained by the second foreign matter detection process measured by the current measurement unit 11 and a second current value obtained by the first foreign matter detection process stored in the memory 21. The difference is calculated (step S206).

  Next, the foreign object detection unit 201 determines whether or not the difference between the first current value and the second current value is equal to or less than a threshold value (step S207). Here, when it is determined that the difference is not less than or equal to the threshold (NO in step S207), the stop unit 202 stops the operation of the washing machine 1 '(step S208).

  Next, the alerting | reporting part 204 notifies abnormality in a washing tub to the communication terminal 30 via the communication part 24 (step S209). At this time, the communication terminal 30 notified of the abnormality may transmit a foreign object detection instruction for executing the second foreign object detection process to the washing machine 1 ′ again. After transmitting the notification information to the communication terminal 30, the communication unit 24 may receive a foreign object detection instruction for causing the foreign object detection unit 201 to detect the foreign object in the drum 3 again from the communication terminal 30. When a foreign object detection instruction is received by the communication unit 24, the process returns to the process of step S205, and the foreign object detection unit 201 may perform the second foreign object detection process again.

  On the other hand, when it is determined that the difference is equal to or smaller than the threshold (YES in step S207), the cloth amount detection unit 203 controls the rotation of the motor 7 so as to rotate the drum 3 at the number of rotations for detecting the cloth amount. A cloth amount detection process is performed (step S210). The current measuring unit 11 measures the value of the current that is passed through the motor 7 and outputs the detection result to the control unit 20. The cloth amount detection unit 203 detects the cloth amount of the clothing from the current value measured by the current measurement unit 11.

  Next, the cloth amount detection unit 203 determines whether or not the cloth amount is normally detected (step S211). If it is determined that the amount of cloth is normally detected (YES in step S211), the control unit 20 determines a washing course corresponding to the amount of cloth detected by the cloth amount detector 203 (step S212). . At this time, the control unit 20 may notify the communication terminal 30 of the determined washing course via the communication unit 24. Further, the control unit 20 starts washing at the determined washing course.

  On the other hand, when it is determined that the amount of cloth is not normally detected (NO in step S211), the stop unit 202 stops the operation of the washing machine 1 '(step S208).

  Next, the alerting | reporting part 204 notifies abnormality in a washing tub to the communication terminal 30 via the communication part 24 (step S209).

  As described above, according to the second embodiment, even in a situation where the user is in a remote place and it is not possible to confirm whether or not there is a child in the washing tub 2 at the start of washing, the washing machine 1 ′ indicates that the child is accommodated in the drum 3. When it is detected safely and with higher accuracy than in the first embodiment and safety in the drum 3 is ensured, washing can be continued, and if there is an abnormality in the drum 3, washing can be stopped. Furthermore, the washing machine 1 ′ can detect an increase in the amount of cloth and present an appropriate washing course to the user even when additional clothes are put into the drum 3.

  In the first and second embodiments, the washing machines 1 and 1 ′ for washing clothes are described as an example of the washing and drying apparatus. However, the present disclosure is not particularly limited thereto, and the washing and drying apparatus It may be a dryer that dries the clothes, or a laundry dryer that wash and dry the clothes, and the dryer or the laundry dryer may have the configuration of the washing machines 1 and 1 ′ described above.

  In the first and second embodiments, the foreign matter detection unit 201 rotates the drum 3 in the same direction by less than a half rotation. However, the present disclosure is not particularly limited to this, and is different from the reference position by 90 degrees. The drum 3 may be swung in the direction.

  The laundry drying apparatus and information processing method according to the present disclosure can improve safety, and are useful as a laundry drying apparatus for washing or drying an object, and an information processing method for detecting foreign matter contained in a drum. .

DESCRIPTION OF SYMBOLS 1,1 'Washing machine 2 Washing tub 3 Drum 4 Clothes entrance / exit 5 Door 7 Motor 8 Water injection pipe 9 Drain pipe 10 Operation panel 11 Current measurement part 14 Rotation detection part 20 Control part 21 Memory 24 Communication part 30 Communication terminal 31 Public Telephone network 32 Gateway system 33 Internet 34 Service server 201 Foreign matter detection unit 202 Stop unit 203 Cloth amount detection unit 204 Notification unit 205 Remote operation mode setting unit

Claims (13)

A drum that accommodates a laundry or drying object and performs a rotational movement;
A motor for rotationally driving the drum;
A control unit for controlling rotation of the motor;
A current measuring unit for measuring a current value supplied to the motor;
A washing and drying apparatus for washing or drying the object comprising:
The controller is
The rotation of the motor is controlled so as to rotate the drum less than one rotation, and based on the current value measured by the current measuring unit, it is different from the object in the drum and the object is assumed. A first detection unit that detects a foreign object having a mass heavier than the mass;
When the foreign matter is detected by the first detection unit, a stop unit that stops the operation of the washing and drying apparatus,
Including laundry drying equipment. The first detection unit controls the rotation of the motor to rotate the drum less than a half rotation, and detects the foreign matter in the drum based on the current value measured by the current measurement unit.
The washing / drying apparatus according to claim 1. The first detection unit controls the rotation of the motor to rotate the drum at a rotation speed slower than the rotation speed of the drum when detecting the amount of the object, and is measured by the current measurement unit Detecting the foreign matter in the drum based on the current value;
The washing / drying apparatus according to claim 1. The first detection unit detects the foreign matter in the drum when the current value measured by the current measurement unit when the drum is rotated less than one rotation is greater than or equal to a predetermined threshold value.
The washing / drying apparatus according to claim 1. The predetermined threshold is a current value corresponding to a weight exceeding a maximum capacity of the object that can be processed by the washing and drying apparatus.
The washing / drying apparatus according to claim 4. When the foreign object is detected by the first detection unit, a notification unit for notifying that the foreign object is contained in the drum is further provided.
The washing / drying apparatus according to claim 1. The control unit further includes a second detection unit that detects the amount of the object from the current value measured by the current measurement unit,
The first detection unit detects the foreign matter in the drum before the amount of the object is detected by the second detection unit.
The washing / drying apparatus according to claim 1. The washing and drying device is a washing machine,
An external device connected via a network with a laundry reservation instruction for reserving a time for washing the object with respect to the laundry drying apparatus or a laundry start instruction for starting the washing of the object with respect to the laundry drying apparatus Further comprising a communication unit for receiving from
The first detection unit, when the washing reservation instruction or the washing start instruction is received by the communication unit, before reserving the time to wash the object or before starting washing of the object, Detecting the foreign matter in the drum,
The washing / drying apparatus according to claim 1. When the foreign matter is detected by the first detection unit, the communication unit transmits notification information for notifying that the foreign matter is contained in the drum to the external device.
The washing / drying apparatus according to claim 8. The communication unit receives, from the external device, a foreign object detection instruction for causing the first detection unit to detect the foreign object in the drum again after transmitting the notification information to the external device.
When the foreign object detection instruction is received, the first detection unit controls rotation of the motor to rotate the drum less than one rotation, and based on the current value measured by the current measurement unit, Re-detect the foreign matter in the drum,
The washing / drying apparatus according to claim 9. The washing and drying device is a washing machine,
A remote operation mode setting unit for setting a remote operation mode that permits remote operation of the washing and drying apparatus by an external device connected via a network;
A communication unit that receives from the external device a laundry reservation instruction that causes the laundry drying apparatus to reserve a time to wash the object or a laundry start instruction that causes the laundry drying apparatus to start washing the object; Further comprising
The first detector is
When the remote operation mode is set by the remote operation mode setting unit, the rotation of the motor is controlled to rotate the drum less than one rotation, and the current value measured by the current measurement unit is set to the first current. Acquired as a value, storing the acquired first current value in a storage unit,
When the washing reservation instruction or the washing start instruction is received by the communication unit, the drum is rotated by less than one rotation before the time for washing the object is reserved or before the washing of the object is started. The rotation of the motor is controlled, the current value measured by the current measurement unit is acquired as a second current value, the acquired second current value, and the second current value stored in the storage unit When the difference between the current value of 1 and the calculated difference is less than or equal to a predetermined threshold is determined, and the difference is determined to be greater than the predetermined threshold, the foreign matter in the drum Detect,
The washing / drying apparatus according to claim 1. The drum has a rotation center axis in the horizontal direction, or has a rotation center axis in an inclined direction inclined with respect to the horizontal direction.
The washing / drying apparatus according to claim 1. A drum that accommodates an object to be washed or dried and performs a rotational motion, a motor that rotationally drives the drum, a control unit that controls the rotation of the motor, and a current measurement that measures a current value supplied to the motor An information processing method in a washing and drying apparatus for washing or drying the object comprising a unit,
The rotation of the motor is controlled so as to rotate the drum less than one rotation, and based on the current value measured by the current measuring unit, it is different from the object in the drum and the object is assumed. Detects foreign objects that are heavier than the mass,
When the foreign matter is detected, the operation of the washing and drying apparatus is stopped.
Information processing method.

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