Laundry treatment method and washing machine

Abstract

A pre-washing device and a blue light device are installed on the inner cylinder wall of the washing machine, the blue light device is started before a washing program is started, and due to the fact that oil substances can generate energy transition under blue light radiation and are in an unstable excited state, the blue light device is started at first; according to the invention, the oil stain is identified based on blue light irradiation, and when the oil stain is identified, a pre-washing device which is arranged on the inner cylinder wall and is closest to the inner cylinder wall is started to spray a pre-washing liquid to the inner cylinder wall, so that the oil stain can be cleaned, and the oil stain can be cleaned. The pre-washing liquid decomposes the oil stain and softens the oil stain in combination with blue light heat, then the washing program is started, and the oil stain is pretreated, so that excessive detergent does not need to be used in the washing program, detergent residues are avoided, washing time and / or washing strength do not need to be increased, and wear to clothes is avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of washing machines, and in particular relates to a laundry processing method and a washing machine. Background Art

[0002] Washing machines have become an indispensable household appliance in people's lives and have brought great convenience to daily life.

[0003] However, through a long-term survey, it was found that some users reported that the washing machine could not wash clean. On the one hand, it was because there were heavy oil stains and dirt on certain parts of the clothes. After adding an appropriate amount of laundry detergent, it was found that these stains still existed after washing. On the other hand, because they were worried that the oil stains could not be washed clean, they added too much laundry detergent or chose a long washing program. However, after washing, the detergent remaining on the clothes had a strong smell, and it felt that they were not rinsed clean or the clothes were worn out due to excessive washing just because of the oil stains. These situations have led users to complain about the stain removal ability of the washing machine. Summary of the Invention

[0004] The purpose of the present invention is to propose a laundry processing method and a washing machine. Before the washing program is started, a blue light device configured in the inner drum is started to identify oil stains by blue light. When the oil stains are identified, the pre-wash device installed on the wall of the inner drum is started to spray pre-wash liquid on them. The pre-wash liquid decomposes the oil stains and softens the oil stains in combination with the heat of the blue light. Then the washing program is started. By pre-treating the oil stains, there is no need to use excessive detergent in the washing program, which avoids detergent residue and the need to increase washing time and / or washing intensity, thereby avoiding wear on clothes. The technical effect of ensuring the washing effect without increasing detergent, washing time and / or washing intensity is achieved, thereby improving the user experience.

[0005] The present invention is achieved by adopting the following technical solutions: A laundry processing method is proposed, which is applied to a washing machine, the washing machine comprising: a body and an inner cylinder disposed in the body; A pre-washing device, installed on the wall of the inner cylinder, comprising a pre-washing liquid box and a nozzle structure for spraying the pre-washing liquid; The blue light device is installed in the inner tube and includes the following steps: After receiving the washing instruction, the blue light device is activated to illuminate the laundry in the inner drum with blue light; Identify the location of oil stains based on blue light illumination; When the oil stain is identified, the pre-washing device is started to spray the pre-washing liquid onto the oil stain; Start the wash program.

[0006] Compared with the prior art, the advantages and positive effects of the present invention are as follows: In the laundry processing method proposed by the present invention, multiple pre-wash devices and blue light devices are installed on the inner drum wall of the washing machine. Before the wash cycle is started, the blue light device is first activated. Due to the characteristic that oily substances absorb light energy under blue light irradiation, the oily substances undergo energy transitions under the blue light radiation and enter an unstable excited state. The molecules in the excited state emit photons and then return to the molecular ground state, causing the oily substances to emit a bright characteristic and produce fluorescence. Therefore, the present invention identifies oil stains through blue light irradiation. When the oil stain is identified, the pre-wash device installed on the inner drum wall is activated to spray pre-wash liquid thereon. The pre-wash liquid decomposes the oil stain and, combined with the heat of the blue light, softens the oil stain. The wash cycle is then started. By pre-treating the oil stain, the use of excessive detergent in the wash cycle is eliminated, detergent residue is avoided, and the washing time and / or washing intensity do not need to be increased, which avoids wear and tear on clothes. The technical effect of ensuring washing results without increasing detergent, washing time and / or washing intensity is achieved, thereby improving the user experience.

[0007] Preferably, there are multiple pre-washing devices installed on the inner cylinder wall at set intervals. When an oil stain is identified, the pre-washing device installed on the inner cylinder wall closest to the oil stain is started to spray pre-washing liquid on it.

[0008] In some embodiments of the present invention, the method further comprises: Before identifying the location of the oil stain based on blue light irradiation, controlling the inner drum to rotate according to a set speed; When the oil stain is identified, the inner drum is controlled to stop rotating.

[0009] In this embodiment, when the blue light device is started, the inner drum is started to rotate at a set speed. The rotation of the inner drum causes the laundry to overturn, which promotes the oily area to be exposed on the surface and easily identified, thereby improving the identification effect of the oily area.

[0010] In some embodiments of the present invention, identifying the location of the oil stain based on blue light irradiation specifically includes: Acquiring a laundry image, and processing the laundry image to find a fluorescent area in the image; The location of the oil stain is determined based on the location of the fluorescent area in the laundry image.

[0011] In this embodiment, while the blue light device is irradiating the laundry, an image of the laundry is acquired through a camera device, a fluorescent area is identified from the laundry image, and the position of the oil stain is determined based on the position of the fluorescent area in the laundry image. Then, the pre-wash device closest to the oil stain can be found by the shortest straight-line distance on the plane, thereby reducing the difficulty of the pre-wash process.

[0012] In some embodiments of the present invention, the method further comprises: determining the amount of oil stain based on a proportional relationship between the fluorescent area and the laundry image; Determining pre-wash parameters according to the amount of oil stains; the pre-wash parameters include the amount of pre-wash liquid sprayed and / or the intensity of pre-wash liquid sprayed; When the pre-washing device is started to spray the pre-washing liquid onto the oil stain, the pre-washing device is controlled to spray the pre-washing liquid according to the pre-washing parameters.

[0013] The larger the fluorescent area, the more oil stains there are. In actual operation, several threshold values ​​can be set as standards for grading the oil stain amount. For example, two threshold values ​​are used to divide the oil stain amount into three levels: small, medium and large. This allows different pre-wash parameters to be adapted for different oil stain amounts. The washing parameters here include but are not limited to the pre-wash liquid spray amount, the pre-wash liquid spray intensity, etc. The size of the fluorescent area can be represented by the proportion of the fluorescent area in the laundry image. Based on the technical means of this embodiment, a pre-processing effect adapted to different oil stain amounts is achieved.

[0014] In some embodiments of the present invention, when starting the blue light device, the method further includes: driving the blue light device to scan the laundry in the inner drum according to a set route; When an oil stain is identified, the blue light device is controlled to be stationary so that the blue light illuminates the oil stain area.

[0015] The blue light device can be configured on the window pad of the washing machine door. Its radiation range can be the entire inner drum space or a small range. When radiating in a small range, a driving mechanism is configured for the blue light device. Based on the drive of the driving mechanism, the blue light device can scan the surface of the washing clothes according to the set route. When oil stains are identified, the blue light device is controlled to stop and keep irradiating, so that the blue light continues to irradiate the oil stain area, and the heat generated by the light accelerates the decomposition of the oil stains.

[0016] In some embodiments of the present invention, the method further comprises: Determine the scanning interval of the blue light device when it is stationary; The pre-wash device is activated based on the position of the scanning interval.

[0017] In this embodiment, the location of the oil stain is determined by using the blue light device in a stationary state. When the blue light device's scanning area is divided into M, each scanning area corresponds to an area of ​​the laundry. When an oil stain is identified, the area where the blue light device stops scanning can be used to determine the area of ​​the laundry where the oil stain is located. This allows for rapid determination of the oil stain's location, simplifies the pre-wash determination process, and improves pre-wash efficiency.

[0018] Preferably, when there are multiple pre-washing devices, a corresponding pre-washing device can be assigned to each scanning interval, and a position correspondence between the scanning interval and the pre-washing device can be established. After determining the scanning interval in which the blue light device is stationary, it can be directly determined which pre-washing device to start based on the correspondence.

[0019] A washing machine is provided, comprising: a body and an inner cylinder disposed in the body; A pre-washing device, installed on the wall of the inner cylinder, comprising a pre-washing liquid box and a nozzle structure for spraying the pre-washing liquid; A blue light device is installed in the inner tube; The pre-wash controller is used to, after receiving the washing instruction, activating the blue light device to illuminate the laundry in the inner drum with blue light; Identify the location of oil stains based on blue light illumination; When the oil stain is identified, the pre-washing device is started to spray the pre-washing liquid onto the oil stain; Start the wash program.

[0020] Compared with the prior art, the advantages and positive effects of the present invention are as follows: In the washing machine proposed by the present invention, multiple pre-wash devices and blue light devices are installed on the inner wall of the washing machine. Before the wash cycle is started, the blue light device is first activated. Due to the characteristic that oily substances absorb light energy under blue light irradiation, the oily substances undergo energy transitions under blue light radiation and enter an unstable excited state. The molecules in the excited state emit photons and then return to the molecular ground state, causing the oily substances to emit a bright characteristic and produce fluorescence. Therefore, the present invention identifies oil stains through blue light irradiation. When the oil stain is identified, the pre-wash device installed on the inner wall of the washing machine is activated to spray pre-wash liquid thereon. The pre-wash liquid decomposes the oil stain and, combined with the heat of the blue light, softens the oil stain. The wash cycle is then started. By pre-treating the oil stain, there is no need to use excessive detergent in the wash cycle, thus avoiding detergent residue, and there is no need to increase the washing time and / or washing intensity, thus avoiding wear and tear on clothes. The technical effect of ensuring washing results without increasing detergent, washing time and / or washing intensity is achieved, thereby improving the user experience.

[0021] In some embodiments of the present invention, the pre-wash controller is further used to: control the inner drum to rotate at a set speed before identifying the location of the oil stain based on blue light irradiation; and control the inner drum to stop rotating when the oil stain is identified.

[0022] In some embodiments of the present invention, the washing machine further includes: a camera device for acquiring an image of laundry; when the pre-wash controller identifies the location of the oil stain based on blue light irradiation, acquiring the image of laundry, processing the image of laundry to find a fluorescent area in the image; and determining the location of the oil stain based on the position of the fluorescent area in the image of laundry.

[0023] In some embodiments of the present invention, the pre-wash controller is further used to: determine the amount of oil stains based on the proportional relationship between the fluorescent area and the laundry image; determine pre-wash parameters according to the amount of oil stains; the pre-wash parameters include the amount of pre-wash liquid sprayed and / or the intensity of pre-wash liquid sprayed; and when the pre-wash device is started to spray pre-wash liquid onto the oil stains, the pre-wash device is controlled to spray the pre-wash liquid according to the pre-wash parameters.

[0024] In some embodiments of the present invention, the blue light device is equipped with a driving mechanism; when the pre-wash controller starts the blue light device, it controls the driving mechanism to drive the blue light device to scan the laundry in the inner drum according to a set route; when an oil stain is identified, the blue light device is controlled to be stationary so that the blue light illuminates the oil stain area.

[0025] In some embodiments of the present invention, the pre-wash controller is further configured to: determine the scanning interval in which the blue light device is stationary; and start the pre-wash device based on the position in the scanning interval.

[0026] Other features and advantages of the present invention will become more apparent after reading the detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 Schematic diagram of the steps of the laundry treatment method proposed in the present invention; Figure 2 This is a schematic diagram of the structure of the washing machine proposed by the present invention; Figure 3 This is a schematic diagram of the installation structure of the blue light device and the pre-wash device in the washing machine proposed by the present invention; Figure 4 This is the second schematic diagram of the installation structure of the blue light device and the pre-wash device in the washing machine proposed by the present invention; Figure 5 Schematic diagram of the steps of the laundry treatment method proposed in the present invention; Figure 6 This is a schematic diagram of the corresponding installation structure of the blue light device scanning interval and the preview device in an embodiment of the present invention; Figure 7 This is a schematic diagram of the functional structure of the washing machine proposed in the present invention. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0031] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections. A person of ordinary skill in the art will understand the specific meanings of the above terms in the present invention in specific circumstances. In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any appropriate manner in any one or more embodiments or examples.

[0032] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0033] The laundry processing method proposed in the present invention aims to provide a pre-wash process for the situation where the clothes are mainly contaminated by oil stains. The pre-wash process is configured in the washing machine and applied before the washing program is executed. It can achieve the technical effect of ensuring the washing effect without increasing the detergent, washing time and / or washing intensity, thereby improving the user experience.

[0034] like Figure 2 As shown, in order to achieve the above-mentioned pre-wash process, the washing machine of the present invention includes a body 1, an inner drum 2 arranged in the body 1, a pre-wash device 3 and a blue light device 4; wherein a plurality of pre-wash devices 3 are installed on the wall of the inner drum at set intervals, and each pre-wash device 3 is composed of a pre-wash liquid box and a nozzle structure for spraying the pre-wash liquid; the blue light device 4 is installed in the inner drum 1, and the blue light emitted by the blue light device 4 is used to illuminate the laundry in the drum.

[0035] The number of the pre-washing device 3 may be one or more, and is not limited to the illustrated embodiment.

[0036] Combined with the above, such as Figure 1 As shown, the laundry treatment method proposed by the present invention includes: Step S1: After receiving the washing instruction, the blue light device is started to illuminate the laundry in the inner drum with blue light.

[0037] As a pre-wash process, it is executed before the washing program is started. After the customer initiates the washing command, the pre-wash process is executed first, and the blue light device is started to irradiate the laundry in the drum; the blue light mentioned in the present invention is ultraviolet light. Based on the characteristic that oily substances absorb light energy under ultraviolet light, oily substances will undergo energy transition under ultraviolet radiation and be in an unstable excited state. The molecules in the excited state will emit photons and return to the molecular ground state, causing the oily substance to emit bright characteristics and produce fluorescence.

[0038] To avoid the impact of ultraviolet light on the human eye, the visual window of the washing machine inlet can be designed as an anti-UV structure, such as using anti-UV glass or adding an anti-UV film, or using voice to remind the user not to look directly at it.

[0039] S2: Identify the oil stain location based on blue light irradiation.

[0040] Based on the above principle, the present invention uses ultraviolet light to irradiate clothing. Under the ultraviolet light radiation, the oil stain undergoes energy transition and emits fluorescence, so that the oil stain area and location can be inferred based on the location of the fluorescence.

[0041] S3: When the oil stain is identified, the pre-washing device is started to spray the pre-washing liquid onto the oil stain.

[0042] The pre-wash liquid, pre-stored in a pre-wash liquid cartridge, is a highly concentrated, highly effective detergent for removing grease stains. After the grease stain's location is determined based on the fluorescent area, the pre-wash unit is activated to spray the pre-wash liquid onto the fluorescent area. The pre-wash liquid decomposes the grease and, combined with the blue light's heat, softens it. If multiple pre-wash units are used, the one closest to the stain is activated.

[0043] S4: Start the washing program.

[0044] After completing the above-mentioned pre-washing step, the washing program is started. By pre-treating the oil stains, there is no need to use excessive detergent in the washing program, which avoids detergent residue. There is no need to increase the washing time and / or washing intensity, which avoids wear and tear on clothes. This achieves the technical effect of ensuring the washing effect without increasing the detergent, washing time and / or washing intensity, thereby improving the user experience.

[0045] In some embodiments of the present invention, Figure 3As shown, the pre-wash device 3 is arranged at the middle waist position of the inner drum, including an annular pre-wash liquid box 31 and multiple spraying mechanisms 32. The pre-wash liquid box 31 is built into the middle waist position of the inner drum 1, and a detergent inlet is provided for it. The user can add pre-wash liquid into it through the detergent inlet. Multiple spraying mechanisms 32 share the pre-wash liquid box 31; multiple spraying mechanisms 32 are arranged at equal intervals, and the spraying range of each spraying mechanism 32 at least covers the boundary of the spraying range of its adjacent spraying mechanism 32, so that the coverage range between the spraying mechanisms 32 can be continuous, ensuring that the laundry in the drum can be sprayed in the entire range.

[0046] In some embodiments of the present invention, Figure 4 As shown, the pre-wash devices 3 are buried at equal intervals on the wall of the inner cylinder 1 or on the water-displacing blades. Each pre-wash device 3 includes a pre-wash liquid box 31 and a spraying mechanism 32. In order to reduce the difficulty of adding pre-wash liquid, the pre-wash liquid boxes 31 of all pre-wash devices are connected by an adding pipe 33, and pre-wash liquid is added to each pre-wash liquid box uniformly through the adding pipe 33. The adding pipe 33 is also buried in the wall of the inner cylinder, and its adding port can be guided to the open edge of the inner cylinder, reducing the difficulty of adding by the user.

[0047] In some embodiments of the present invention, Figure 5 As shown, after step S1 in the pre-wash process, the following steps are further included: Step S11: Start the inner drum to rotate according to the set speed.

[0048] The rotation of the inner drum 1 causes the laundry to overturn, so that the oily area is exposed on the surface and easily identified, thereby improving the identification effect of the oily area.

[0049] In some embodiments of the present invention, the location of the oil stain is determined by an image processing method. After the blue light device 3 is started, blue light is irradiated on the surface of the laundry to obtain an image of the laundry in the drum. If there is an oil stain, the oil stain area is excited by the blue light and emits fluorescence, showing a fluorescent feature in the laundry image. The location of the oil stain can be determined based on the position of the fluorescent feature area in the laundry image.

[0050] In an embodiment of the present invention, the camera device 5 is installed on the inside of the washing machine window, and takes pictures of the laundry in the drum at a set frequency. As the inner drum rotates, a number of laundry images are acquired, and each frame of the laundry image is synchronously recognized. When a fluorescent feature area is recognized, the inner drum 2 is controlled to stop rotating to keep the oily area exposed on the surface.

[0051] Then, the pre-wash device 4 can be started to spray the pre-wash liquid, wherein the inner drum can be rotated slowly enough to bring the pre-wash device 4 closest to the oil stain location; alternatively, a driving mechanism can be designed for the pre-wash device to drive the spraying direction so that the pre-wash liquid is accurately sprayed onto the oil stain area.

[0052] When multiple pre-washing devices 4 are designed, the pre-washing device 4 closest to the oil stain can be found by the shortest straight-line distance on the plane and the pre-washing liquid spraying can be started, which reduces the difficulty of the pre-washing process.

[0053] In some embodiments of the present invention, after acquiring an image of laundry and parsing out a fluorescent area from the image of laundry, the amount of oil stains can be determined based on the proportion of the fluorescent area occupying the image of laundry, and then the pre-wash parameters can be determined based on the amount of oil stains. The pre-wash parameters here include but are not limited to the amount of pre-wash liquid sprayed, the intensity of the pre-wash liquid sprayed, etc. When the pre-wash device closest to the oil stain is started to spray the pre-wash liquid onto the oil stain, the pre-wash device is controlled to spray the pre-wash liquid according to the pre-wash parameters.

[0054] The larger the fluorescent area, the more oil stains there are. In actual operation, several threshold values ​​can be set as standards for grading the oil stain amount. For example, two threshold values ​​are used to divide the oil stain amount into three levels: small, medium and large. This allows different pre-wash parameters to be adapted for different oil stain amounts. The washing parameters here include but are not limited to the pre-wash liquid spray amount, the pre-wash liquid spray intensity, etc. The size of the fluorescent area can be represented by the proportion of the fluorescent area in the laundry image. Based on the technical means of this embodiment, a pre-processing effect adapted to different oil stain amounts is achieved.

[0055] In some embodiments of the present invention, the blue light device 3 is installed on the window pad of the washing machine door. Although its radiated light can illuminate the entire inner drum area, there are also blind spots or areas with weak light intensity. In order to improve the recognition effect of the oil stain area, a driving mechanism is configured for the blue light device 3, and a scanning route is set for the blue light device 3, for example, scanning from the left / right side to the right / left side. After the blue light device is started in step S1, the blue light device 3 is driven to scan the laundry in the inner drum according to the set route. During this period, the laundry image is obtained according to the set frequency, and whether there is a fluorescent area for each frame of the laundry image. When the oil stain is identified, the blue light device is controlled to stop and keep irradiating, so that the blue light continues to irradiate the oil stain area, and the heat generated by the light accelerates the decomposition of the oil stain.

[0056] In some embodiments of the present invention, each scanning interval corresponds to an area on the surface of the laundry, so that the area requiring pre-washing can be directly determined based on the interval where the blue light device stops scanning, without determining the specific location of the oil stain.

[0057] Combine Figure 6 As shown, the scanning range of the blue light device is divided into scanning area 1, scanning area 2 and scanning area 3. Each scanning area corresponds to an area on the surface of the laundry. When the blue light device scans all scanning areas within one scanning cycle, the entire surface of the laundry is scanned. In actual application, the rotation speed of the inner drum can be set to ensure that the laundry will not fall over within one scanning cycle of the blue light device.

[0058] When a fluorescent area is identified based on the laundry image, blue light device 4 is immediately controlled to be stationary. The scanning zone in which blue light device 3 was stationary can be determined. For example, if it is stationary in scanning zone 2, pre-wash device 4 is activated to spray pre-wash liquid into scanning zone 2, eliminating the need to specifically determine the location of the oil stain. This simplifies the pre-wash determination process and improves pre-wash efficiency. If there are multiple pre-wash devices 4, the shortest distance between each pre-wash device and the scanning zone can be used to determine which pre-wash device should perform pre-washing on the washing area. This pre-wash device can then be activated to spray pre-wash liquid.

[0059] The present invention also provides a washing machine, Figure 2 and Figure 7 Shown, including: The machine body 1, the inner drum 2, the pre-washing device 3 and the blue light device 4 are arranged in the machine body 1; wherein, the pre-washing device 3 is installed on the wall of the inner drum, and the blue light device 4 is installed on the window pad of the inner drum.

[0060] It also includes a pre-wash controller 6, which is used to start the blue light device 4 after receiving a washing instruction, so that the blue light is irradiated on the laundry in the inner drum 1, and the position of the oil stain is identified based on the blue light illumination. When the oil stain is identified, the pre-wash device 4 is started to spray pre-wash liquid on the oil stain; and then the washing program is started.

[0061] The pre-wash controller 6 is further configured to: control the inner drum to rotate at a set speed before identifying the location of the oil stain based on blue light irradiation; and control the inner drum to stop rotating when the oil stain is identified.

[0062] In some embodiments of the present invention, the washing machine further includes: a camera device 5 for acquiring an image of laundry; a pre-wash controller 6 for acquiring an image of laundry when identifying the location of the oil stain based on blue light irradiation, processing the laundry image to find a fluorescent area in the image; and determining the location of the oil stain based on the position of the fluorescent area in the laundry image.

[0063] In some embodiments of the present invention, the pre-wash controller 6 is also used to: determine the amount of oil stains based on the proportional relationship between the fluorescent area and the image of the laundry; determine the pre-wash parameters according to the amount of oil stains; the pre-wash parameters include the amount of pre-wash liquid sprayed and / or the intensity of pre-wash liquid sprayed; when the pre-wash device 4 is started to spray pre-wash liquid onto the oil stains, the pre-wash device is controlled to spray the pre-wash liquid according to the pre-wash parameters.

[0064] In some embodiments of the present invention, the blue light device 4 is equipped with a driving mechanism; when the pre-wash controller starts the blue light device, it controls the driving mechanism to drive the blue light device to scan the laundry in the inner drum according to a set route; when an oil stain is identified, the blue light device is controlled to stop so that the blue light illuminates the oil stain area.

[0065] In some embodiments of the present invention, the pre-wash controller 6 is further configured to: determine the scanning interval in which the blue light device is stationary; and activate the pre-wash device based on the position of the scanning interval in which the blue light device is stationary.

[0066] The specific way of implementing pre-washing in this washing machine has been described in detail in the above processing method and will not be repeated here.

[0067] In actual applications, other stains besides oil stains can also show image grayscale, brightness, hue, etc. different from those of normal laundry under blue light irradiation. Therefore, image processing technology can be combined to find the location of the stains, and pre-washing can be achieved through the above-mentioned technical means of the present invention.

[0068] The power supply of the pre-washing device 4 and the communication with the main control circuit can be achieved through existing technologies such as wireless, buried wires in the inner drum wall, etc., and are not limited by the present invention.

[0069] It should be noted that, in the specific implementation process, the above-mentioned control part can be implemented by a hardware processor executing computer execution instructions in software form stored in the memory, which will not be elaborated here. The programs corresponding to the actions performed by the above-mentioned control circuit can be stored in the system's computer-readable storage medium in software form, so that the processor can call and execute the operations corresponding to the above modules.

[0070] The computer-readable storage medium mentioned above may include volatile memory, such as random access memory; may also include non-volatile memory, such as read-only memory, flash memory, hard disk or solid-state drive; may also include a combination of the above types of memory.

[0071] The processor mentioned above can also be a collective term for multiple processing elements. For example, the processor can be a central processing unit (CPU), other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs) or other programmable logic devices (PLDs), discrete gate or transistor logic devices (LDDs), discrete hardware components, etc. A general-purpose processor can be a microprocessor or any conventional processor, etc., and can also be a special-purpose processor.

[0072] It should be pointed out that the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. A laundry processing method, applied to a washing machine, comprising: a body and an inner cylinder disposed in the body; A pre-washing device, installed on the wall of the inner cylinder, comprising a pre-washing liquid box and a nozzle structure for spraying the pre-washing liquid; A blue light device is installed in the inner tube; It is characterized in that it includes the following steps: After receiving the washing instruction, the blue light device is activated to illuminate the laundry in the inner drum with blue light; Identify the location of oil stains based on blue light illumination; When the oil stain is identified, the pre-washing device is started to spray the pre-washing liquid onto the oil stain; Start the wash program.

2. The laundry treatment method according to claim 1, wherein: The method further comprises: Before identifying the location of the oil stain based on blue light irradiation, controlling the inner drum to rotate according to a set speed; When the oil stain is identified, the inner drum is controlled to stop rotating.

3. The laundry treatment method according to claim 1, wherein: Identify the location of oil stains based on blue light irradiation, specifically including: Acquiring a laundry image, and processing the laundry image to find a fluorescent area in the image; The location of the oil stain is determined based on the location of the fluorescent area in the laundry image.

4. The laundry treatment method according to claim 3, wherein: The method further comprises: determining the amount of oil stain based on a proportional relationship between the fluorescent area and the laundry image; Determining pre-wash parameters according to the amount of oil stains; the pre-wash parameters include the amount of pre-wash liquid sprayed and / or the intensity of pre-wash liquid sprayed; When the pre-washing device is started to spray the pre-washing liquid onto the oil stain, the pre-washing device is controlled to spray the pre-washing liquid according to the pre-washing parameters.

5. The laundry treatment method according to claim 1, wherein: When starting the blue light device, the method further includes: driving the blue light device to scan the laundry in the inner drum according to a set route; When an oil stain is identified, the blue light device is controlled to be stationary so that the blue light illuminates the oil stain area.

6. The laundry treatment method according to claim 5, wherein: The method further comprises: Determine the scanning interval of the blue light device when it is stationary; The pre-wash device is activated based on the position of the scanning interval.

7. A washing machine, characterized in that: include: a body and an inner cylinder disposed in the body; A pre-washing device, installed on the wall of the inner cylinder, comprising a pre-washing liquid box and a nozzle structure for spraying the pre-washing liquid; A blue light device is installed in the inner tube; The pre-wash controller is used to, after receiving the washing instruction, activating the blue light device to illuminate the laundry in the inner drum with blue light; Identify the location of oil stains based on blue light illumination; When the oil stain is identified, the pre-washing device is started to spray the pre-washing liquid onto the oil stain; Start the wash program.

8. The washing machine according to claim 6, wherein: The washing machine further comprises: A camera device for acquiring images of laundry; The pre-wash controller, when identifying the location of the oil stain based on blue light irradiation, acquires an image of the laundry, processes the image of the laundry to find a fluorescent area in the image; determines the location of the oil stain based on the location of the fluorescent area in the image of the laundry; and determining the amount of oil stain based on a proportional relationship between the fluorescent area and the laundry image; Determining pre-wash parameters according to the amount of oil stains; the pre-wash parameters include the amount of pre-wash liquid sprayed and / or the intensity of pre-wash liquid sprayed; When the pre-washing device is started to spray the pre-washing liquid onto the oil stain, the pre-washing device is controlled to spray the pre-washing liquid according to the pre-washing parameters.

9. The washing machine according to claim 7, characterized in that The blue light device is equipped with a driving mechanism; when the pre-wash controller starts the blue light device, it controls the driving mechanism to drive the blue light device to scan the laundry in the inner drum along a set route; when an oil stain is identified, the blue light device is controlled to stop so that the blue light illuminates the oil stain area.

10. The washing machine according to claim 9, characterized in that The pre-wash controller is further configured to: Determine the scanning interval of the blue light device when it is stationary; The pre-wash device is activated based on the position of the scanning interval.

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