Winding detection method and device, clothes dryer and medium
Technical Field
The embodiment of the invention relates to the field of clothes dryers, in particular to a winding detection method and device, a clothes dryer and a medium.
Background
Along with the change of building structures of urban residents and the development trend of urbanization of urban and rural residents, the pace of life is faster and faster, the space for drying clothes is smaller and smaller, and the air pollution is more and more serious, so that the user group for drying clothes by using the clothes dryer is gradually expanded, and the personalized demand of users is increasingly enhanced.
The winding is an important factor influencing the judgment of the drying degree of the clothes, and the problem of winding is solved to a certain extent, namely the problem that the clothes cannot be dried is solved.
The current structural system of the clothes dryer does not have a device for detecting clothes winding, and the aim of indirectly releasing the winding can only be fulfilled by forward and reverse rotation at fixed time intervals. However, the air volume is extremely small when the circulation fan of the clothes dryer reversely rotates, so that the heat pump system is protected due to overhigh temperature, and heating is suspended. The reduction of heating capacity and the extremely small air volume can cause the prolongation of the drying time.
Disclosure of Invention
The embodiment of the invention provides a winding detection method, a winding detection device, a clothes dryer and a medium, which are used for realizing the detection of the winding of clothes, further starting forward and reverse rotation to remove the winding after the winding of the clothes is detected, so that the utilization rate of reverse rotation is reduced, and the drying time of the clothes is shortened.
In a first aspect, an embodiment of the present invention provides a winding detection method, where the method includes:
detecting the air inlet temperature and the air outlet temperature of a clothes drying roller in the clothes dryer and the water content of clothes in the clothes drying roller;
and determining whether the clothes are wound or not according to the inlet air temperature, the outlet air temperature and the water content of the clothes.
Further, the determining whether the clothes are wound according to the inlet air temperature, the outlet air temperature and the moisture content of the clothes comprises:
performing primary winding detection on the clothes according to the moisture content of the clothes and the air outlet temperature;
and if the initial detection result is that winding exists, winding the clothes according to the air outlet temperature and the air inlet temperature for final detection.
Further, according to the air-out temperature with the air inlet temperature is right the clothing twines final detection, include:
determining the air outlet temperature difference at two adjacent moments and the air inlet temperature difference at two adjacent moments according to the air outlet temperature and the air inlet temperature;
and if the fact that the reduction values of the inlet air temperatures at two adjacent moments in the continuously set number of moments are larger than the temperature reduction threshold value and the rise values of the outlet air temperatures at two adjacent moments in the continuously set number of moments are larger than the temperature rise threshold value is determined according to the outlet air temperature difference and the inlet air temperature difference, the clothes are determined to be wound.
Further, the clothing winding is carried out according to the moisture content of clothing and the air-out temperature and is originally detected, include:
and if the moisture content of the clothes is smaller than or equal to a moisture content threshold value and the air outlet temperature is larger than or equal to an air outlet temperature threshold value, determining that the detection result of the clothes winding initial detection is winding.
Further, before determining whether the clothes are wound according to the inlet air temperature, the outlet air temperature and the water content of the clothes, the method further comprises the following steps:
judging whether the clothes dryer is wound in the current clothes drying process;
if so, judging whether the winding is eliminated according to the air outlet temperature and the air inlet temperature.
Further, after it is determined that the clothes are twisted according to the inlet air temperature, the outlet air temperature and the water content of the clothes, the method further comprises the following steps:
and controlling the clothes drying roller to rotate forward and backward alternately.
In a second aspect, an embodiment of the present invention further provides a winding detection apparatus, where the apparatus includes:
the information detection module is used for detecting the air inlet temperature and the air outlet temperature of a clothes drying roller in the clothes dryer and the water content of clothes in the clothes drying roller;
and the winding detection module is used for determining whether the clothes are wound according to the air inlet temperature, the air outlet temperature and the water content of the clothes.
Further, the winding detection module includes:
the primary detection unit is used for performing primary winding detection on the clothes according to the moisture content of the clothes and the air outlet temperature;
and the final detection unit is used for winding the clothes for final detection according to the air outlet temperature and the air inlet temperature if the winding exists in the initial detection result.
Further, the final detection unit is specifically configured to:
determining the air outlet temperature difference at two adjacent moments and the air inlet temperature difference at two adjacent moments according to the air outlet temperature and the air inlet temperature;
and if the fact that the reduction values of the inlet air temperatures at two adjacent moments in the continuously set number of moments are larger than the temperature reduction threshold value and the rise values of the outlet air temperatures at two adjacent moments in the continuously set number of moments are larger than the temperature rise threshold value is determined according to the outlet air temperature difference and the inlet air temperature difference, the clothes are determined to be wound.
Further, the primary detection unit is specifically configured to:
and if the moisture content of the clothes is smaller than or equal to a moisture content threshold value and the air outlet temperature is larger than or equal to an air outlet temperature threshold value, determining that the detection result of the clothes winding initial detection is winding.
Further, the apparatus further comprises:
the primary winding detection module is used for judging whether the clothes dryer is wound in the current clothes drying process before determining whether the clothes are wound according to the inlet air temperature, the outlet air temperature and the water content of the clothes;
and the winding elimination detection module is used for judging whether the winding is eliminated or not according to the air outlet temperature and the air inlet temperature if the winding is eliminated.
In a third aspect, an embodiment of the present invention further provides a clothes dryer, including:
one or more processors;
storage means for storing one or more programs;
the air inlet temperature sensor is arranged at an air inlet of a drying roller in the clothes dryer and used for detecting the temperature of hot air for drying clothes before the hot air enters the drying roller;
the air outlet temperature sensor is arranged at an air outlet of a clothes drying roller in the clothes dryer and used for detecting the temperature of hot air of dry and noisy clothes after the hot air comes out of the clothes drying roller;
the humidity sensor is arranged in the clothes drying roller and used for detecting the moisture content of the clothes in the clothes drying roller;
when executed by the one or more processors, cause the one or more processors to implement a wrap detection method as in any of the embodiments of the present invention.
In a fourth aspect, the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the winding detection method according to any one of the embodiments of the present invention.
According to the embodiment of the invention, whether the clothes are wound is determined according to the air inlet temperature, the air outlet temperature and the water content of the clothes, so that the clothes winding is detected, and then the forward and reverse rotation is started to remove the winding after the clothes are detected to be wound, so that the reverse rotation utilization rate is reduced, the clothes drying time is shortened, and the waste of resources caused by the reverse rotation is reduced.
Drawings
FIG. 1a is a schematic diagram of inlet air temperature and outlet air temperature curves in a normal drying process;
FIG. 1b is a schematic diagram of inlet air temperature and outlet air temperature curves when a compressor protection or condensing fan is active;
FIG. 1c is a graph showing the temperature of inlet air and the temperature of outlet air when winding occurs;
fig. 2 is a flowchart of a winding detection method according to an embodiment of the present invention;
fig. 3 is a flowchart of a winding detection method according to a second embodiment of the present invention;
fig. 4 is a flowchart of a winding detection method according to a third embodiment of the present invention;
fig. 5 is a schematic structural diagram of a winding detection apparatus according to a fourth embodiment of the present invention;
fig. 6 is a schematic structural diagram of a clothes dryer according to a fifth embodiment of the present invention;
fig. 7 is a schematic view of installation positions of an inlet air temperature sensor and an outlet air temperature sensor in a clothes dryer according to a fifth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
After discovering that the problems of resource waste (high temperature, high power and high energy consumption of a compressor which is reversely rotated for multiple times) and prolonged drying time (the circulating air volume of a drying system is reduced due to reverse rotation, and the compressor can reach a protection temperature to realize self-protection), the inventor carries out deep research on an inlet air temperature 101 and outlet air temperature 102 curve (see fig. 1a) in a normal drying process, an inlet air temperature 101 and outlet air temperature 102 curve (see fig. 1b) when a compressor is protected or a condensing fan is in action, and an inlet air temperature 101 and outlet air temperature 102 curve (see fig. 1c) when winding occurs, so as to obtain an implementation scheme of the invention, thereby solving the problems in the prior art.
Example one
Fig. 2 is a flowchart of a winding detection method according to an embodiment of the present invention. The embodiment is applicable to the case of performing winding detection on clothes in the clothes dryer. The method may be performed by a wrap detection apparatus, which may be implemented in software and/or hardware. Referring to fig. 2, the present embodiment provides a winding detection method including:
s110, detecting the air inlet temperature and the air outlet temperature of a clothes drying roller in the clothes dryer and the water content of clothes in the clothes drying roller.
Wherein, the air inlet temperature refers to the temperature of hot air for drying clothes before entering the clothes drying roller.
The air outlet temperature refers to the temperature of hot air of dry clothes after the hot air comes out of the clothes drying roller.
The water content is the proportion of the moisture contained in the clothes in the drying roller.
The embodiment does not limit the detection method of the air inlet temperature, the air outlet temperature and the water content.
Typically, the temperature of the inlet air may be detected by an inlet air temperature sensor provided at an inlet air port of a drying drum in the dryer.
The air outlet temperature can be detected by an air outlet temperature sensor at the air outlet of the clothes drying roller in the clothes dryer.
The moisture content may be detected by a humidity sensor disposed within the drying drum.
The setting number and the setting position of the air inlet temperature sensor, the air outlet temperature sensor and the humidity sensor are not limited.
Optionally, the setting quantity of air inlet temperature sensor, air outlet temperature sensor and humidity sensor can be one, and for realizing accurate detection of temperature, the setting quantity of air inlet temperature sensor, air outlet temperature sensor and humidity sensor can be two, three or more.
The humidity sensor may be arranged at any position of the drying drum, for example at the middle or at both ends of the drying drum.
S120, determining whether the clothes are wound or not according to the inlet air temperature, the outlet air temperature and the water content of the clothes.
Specifically, if the water content of the clothes is smaller than a set water content threshold, the inlet air temperature is in an ascending trend, and the outlet air temperature is in a descending trend, the clothes are determined to be wound.
According to the technical scheme of the embodiment of the invention, whether the clothes are wound is determined according to the inlet air temperature, the outlet air temperature and the water content of the clothes, so that the winding of the clothes is detected, and then the forward and reverse rotation is started to remove the winding after the winding of the clothes is detected, so that the utilization rate of reverse rotation is reduced, the drying time of the clothes is shortened, and the waste of resources caused by the reverse rotation is reduced.
In order to realize the detection of whether the winding is eliminated, before the clothes are determined to be wound according to the inlet air temperature, the outlet air temperature and the water content of the clothes, the method further comprises the following steps:
judging whether the clothes dryer is wound in the current clothes drying process;
if so, judging whether the winding is eliminated according to the air outlet temperature and the air inlet temperature.
Because, generally, the laundry tangling occurs in the case where the moisture content of the laundry is less than the threshold value of the moisture content. When the primary winding detection is performed, whether the moisture content of the clothes is smaller than or equal to the moisture content threshold value is judged, and the moisture content of the clothes detected after the secondary drying is lower. Therefore, for the detection of non-primary winding, the judgment can be carried out only according to the air outlet temperature and the air inlet temperature, and the repeated judgment on the water content of the clothes is not needed.
Wherein, the water content threshold is the maximum value of the water content of the clothes when the clothes are wound.
Further, after it is determined that the clothes are twisted according to the inlet air temperature, the outlet air temperature and the water content of the clothes, the method further comprises the following steps:
unwinding the laundry.
Typically, unwinding the garment comprises:
and controlling the clothes drying drum to rotate forward and backward alternately so as to release the winding of the clothes.
Specifically, the forward and reverse rotation is repeated for 4.5 minutes in the forward rotation and 20 seconds in the reverse rotation, so as to realize the unwinding of the wound clothes.
Example two
Fig. 3 is a flowchart of a winding detection method according to a second embodiment of the present invention. The present embodiment is an alternative proposed on the basis of the above-described embodiments. Referring to fig. 3, the winding detection method provided by the present embodiment includes:
s210, detecting the air inlet temperature and the air outlet temperature of a clothes drying roller in the clothes dryer and the water content of clothes in the clothes drying roller.
S220, performing primary winding detection on the clothes according to the moisture content of the clothes and the air outlet temperature.
Specifically, the clothing winding according to the moisture content of clothing and the air-out temperature is carried out and is originally detected, include:
and if the moisture content of the clothes is smaller than or equal to a moisture content threshold value and the air outlet temperature is larger than or equal to an air outlet temperature threshold value, determining that the detection result of the clothes winding initial detection is winding.
And S230, if the winding exists in the initial detection result, winding the clothes according to the air outlet temperature and the air inlet temperature for final detection.
Typically, the winding final detection of the laundry according to the outlet air temperature and the inlet air temperature includes:
determining the air outlet temperature difference at two adjacent moments and the air inlet temperature difference at two adjacent moments according to the air outlet temperature and the air inlet temperature;
and if the fact that the reduction values of the inlet air temperatures at two adjacent moments in the continuously set number of moments are larger than the temperature reduction threshold value and the rise values of the outlet air temperatures at two adjacent moments in the continuously set number of moments are larger than the temperature rise threshold value is determined according to the outlet air temperature difference and the inlet air temperature difference, the clothes are determined to be wound.
Wherein, the set quantity is the minimum value of the continuous time quantity that the temperature of the inlet air is continuously reduced when the clothes are wound, and the reduction value is larger than the lower threshold value of the temperature.
The temperature decrease threshold is the minimum value of the decrease value of the continuous decrease of the temperature of the intake air when the entanglement of the laundry occurs.
The temperature rise threshold is the minimum value of the rise value of the air outlet temperature when the clothes are wound.
Specifically, the reduction values of the inlet air temperatures at two adjacent moments in the moments of the continuously set number are both greater than the temperature reduction threshold, and the increase values of the outlet air temperatures at two adjacent moments in the moments of the continuously set number are both greater than the temperature increase threshold, indicating that:
the temperature of the inlet air is continuously reduced in the continuous setting number of moments, the reduction value is larger than the temperature reduction threshold value, the temperature of the outlet air is continuously increased in the continuous setting number of moments, and the increase value is larger than the temperature increase threshold value.
Optionally, according to the air-out temperature with the air-in temperature is to the clothing final detection that twines, include:
and if the inlet air temperature shows an ascending trend and the outlet air temperature shows a descending trend, determining that the clothes are wound.
According to the technical scheme of the embodiment of the invention, the clothes are subjected to primary winding detection according to the moisture content of the clothes and the air outlet temperature; and if the initial detection result is that winding exists, winding the clothes according to the air outlet temperature and the air inlet temperature, and finally detecting, so that the winding of the clothes is effectively detected.
EXAMPLE III
Fig. 4 is a flowchart of a winding detection method according to a third embodiment of the present invention. The present embodiment is an alternative proposed on the basis of the above-described embodiments. Referring to fig. 4, the winding detection method provided by the present embodiment includes:
and judging whether the clothes dryer is wound in the current clothes drying process.
If the clothes dryer is not wound in the current clothes drying process, judging whether the water content of the clothes in the clothes dryer is smaller than or equal to a water content threshold value or not, and judging whether the air outlet temperature of the clothes dryer is larger than or equal to an air outlet temperature threshold value or not.
If so, judging whether the reduction values of the inlet air temperatures of two adjacent moments in the continuously set number of moments are both larger than a temperature reduction threshold value, and whether the increase values of the outlet air temperatures of two adjacent moments in the continuously set number of moments are both larger than a temperature increase threshold value; if yes, determining that the clothes are twisted.
If the clothes dryer is wound in the process of drying clothes at the time, directly judging whether the reduction values of the inlet air temperatures of two adjacent moments in the continuously set number of moments are both greater than a temperature reduction threshold value, and whether the increase values of the outlet air temperatures of two adjacent moments in the continuously set number of moments are both greater than a temperature increase threshold value; if yes, determining that the clothes are twisted.
And if the clothes are determined to be wound, controlling a drying drum of the clothes dryer to rotate in a positive and negative alternating mode so as to remove the winding of the clothes.
Because, when the primary winding is detected, the judgment of whether the moisture content of the clothes is less than or equal to the moisture content threshold value and whether the air outlet temperature is greater than or equal to the air outlet temperature threshold value is already carried out, the moisture content of the clothes detected after the secondary drying is lower, and the air outlet temperature is higher. Therefore, for the detection of non-primary winding, only according to the air outlet temperature and the air inlet temperature, the judgment can be carried out, and the repeated judgment on whether the water content of the clothes is smaller than or equal to the water content threshold value and whether the air outlet temperature is larger than or equal to the air outlet temperature threshold value is not needed, so that the detection efficiency is improved.
According to the technical scheme of the embodiment of the invention, the forward and reverse rotation logic control is carried out after the winding is judged, so that the reverse rotation times are reduced, the drying control time is saved, and the drying efficiency is improved.
Based on the technical teaching of the above embodiments, a person skilled in the art will be motivated to combine the above embodiments to detect the laundry winding, and then start the forward and reverse rotation to release the winding after detecting the laundry winding, so as to reduce the usage rate of the reverse rotation and shorten the drying time of the laundry.
Example four
Fig. 5 is a schematic structural diagram of a winding detection apparatus according to a fourth embodiment of the present invention. Referring to fig. 5, the winding detection apparatus provided in the present embodiment includes an information detection module 10 and a winding detection module 20.
The information detection module 10 is used for detecting the air inlet temperature and the air outlet temperature of a clothes drying roller in the clothes dryer and the moisture content of clothes in the clothes drying roller;
and the winding detection module 20 is used for determining whether the clothes are wound according to the inlet air temperature, the outlet air temperature and the water content of the clothes.
According to the technical scheme of the embodiment of the invention, whether the clothes are wound is determined according to the inlet air temperature, the outlet air temperature and the water content of the clothes, so that the winding of the clothes is detected, and then the forward and reverse rotation is started to remove the winding after the winding of the clothes is detected, so that the utilization rate of reverse rotation is reduced, the drying time of the clothes is shortened, and the waste of resources caused by the reverse rotation is reduced.
Further, the winding detection module includes: an initial detection unit and a final detection unit.
The primary detection unit is used for performing primary winding detection on the clothes according to the moisture content of the clothes and the air outlet temperature;
and the final detection unit is used for winding the clothes for final detection according to the air outlet temperature and the air inlet temperature if the winding exists in the initial detection result.
Further, the final detection unit is specifically configured to:
determining the air outlet temperature difference at two adjacent moments and the air inlet temperature difference at two adjacent moments according to the air outlet temperature and the air inlet temperature;
and if the fact that the reduction values of the inlet air temperatures at two adjacent moments in the continuously set number of moments are larger than the temperature reduction threshold value and the rise values of the outlet air temperatures at two adjacent moments in the continuously set number of moments are larger than the temperature rise threshold value is determined according to the outlet air temperature difference and the inlet air temperature difference, the clothes are determined to be wound.
Further, the primary detection unit is specifically configured to:
and if the moisture content of the clothes is smaller than or equal to a moisture content threshold value and the air outlet temperature is larger than or equal to an air outlet temperature threshold value, determining that the detection result of the clothes winding initial detection is winding.
Further, the apparatus further comprises: the device comprises a primary winding detection module and a winding elimination detection module.
The primary winding detection module is used for judging whether the clothes dryer is wound in the current clothes drying process before determining whether the clothes are wound according to the inlet air temperature, the outlet air temperature and the water content of the clothes;
and the winding elimination detection module is used for judging whether the winding is eliminated or not according to the air outlet temperature and the air inlet temperature if the winding is eliminated.
Further, the apparatus further comprises: and a winding release module.
And the winding releasing module is used for controlling the clothes drying roller to rotate forward and backward alternately after the clothes are determined to be wound according to the air inlet temperature, the air outlet temperature and the water content of the clothes.
The winding detection device provided by the embodiment of the invention can execute the winding detection method provided by any embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method.
EXAMPLE five
Fig. 6 is a schematic structural diagram of a dryer according to a fifth embodiment of the present invention, as shown in fig. 6, the dryer includes a processor 70, a memory 71, an input device 72, and an output device 73; the number of the processors 70 in the dryer may be one or more, and one processor 70 is taken as an example in fig. 6; the processor 70, the memory 71, the input device 72 and the output device 73 in the dryer may be connected by a bus or other means, and the bus connection is exemplified in fig. 6.
Further, the processor 70 is connected with an inlet air temperature sensor, an outlet air temperature sensor and a humidity sensor.
The air inlet temperature sensor is used for detecting the temperature of hot air for drying clothes before the hot air enters the clothes drying roller;
the air outlet temperature sensor is used for detecting the temperature of hot air of the dry-noise clothes after the hot air comes out of the clothes drying roller;
and the humidity sensor is arranged in the clothes drying roller and used for detecting the moisture content of the clothes in the clothes drying roller.
Specifically, referring to fig. 7, the installation positions of an inlet air temperature sensor 101 and an outlet air temperature sensor 102 are shown, wherein the inlet air temperature sensor 101 is arranged at an air inlet of a drying drum 103 in the dryer 100; and an air outlet temperature sensor 102 arranged at an air outlet of a drying drum 103 in the clothes dryer 100. Continue to use
Referring to fig. 6, a memory 71 is used as a computer readable storage medium for storing software programs, computer executable programs, and modules, such as program instructions/modules corresponding to the winding detection method in the embodiment of the present invention (for example, the information detection module 10 and the winding detection module 20 in the winding detection apparatus, the processor 70 executes various functional applications and data processing of the clothes dryer by running the software programs, instructions, and modules stored in the memory 71, so as to implement the winding detection method.
The memory 71 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the memory 71 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory 71 may further include memory remotely located from the processor 70, which may be connected to the dryer through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 72 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function controls of the dryer. The output device 73 may include a display screen or the like to display the remaining time of drying the clothes, etc.
EXAMPLE six
An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements a winding detection method according to any one of the present invention, where the method includes:
detecting the air inlet temperature and the air outlet temperature of a clothes drying roller in the clothes dryer and the water content of clothes in the clothes drying roller;
and determining whether the clothes are wound or not according to the inlet air temperature, the outlet air temperature and the water content of the clothes.
Of course, the storage medium provided by the embodiment of the present invention contains computer-executable instructions, and the computer-executable instructions are not limited to the method operations described above, and may also perform related operations in the winding detection method provided by any embodiment of the present invention.
From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention.
It should be noted that, in the embodiment of the winding detection apparatus, the included units and modules are only divided according to functional logic, but are not limited to the above division as long as the corresponding functions can be implemented; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.