An oral irrigation method, irrigation system and oral irrigator

Abstract

The present invention discloses an oral irrigation method, an irrigation system and a dental irrigator. The oral irrigation method includes: obtaining an oral image through an image acquisition device installed on the dental irrigator; controlling the water outlet of the water outlet nozzle of the dental irrigator based on the blood area and / or blood concentration in the obtained oral image. The present invention can adjust the irrigation intensity and the irrigation water volume according to the tooth bleeding condition, so as to protect the bleeding area from secondary injury and achieve a comprehensive and thorough cleaning of dental foreign matters.

Description

Technical Field

[0001] The present invention relates to the technical field of oral care, and particularly to an oral irrigation method, an irrigation system and a dental irrigator. Background Art

[0002] As a personal care appliance in the field of oral health care, a dental irrigator pumps water in a water tank to a water outlet nozzle to form a jet flow for flushing a user's oral cavity and teeth. Compared with an ordinary toothbrush, it has gradually gained the favor of consumers due to its advantages of being able to more thoroughly remove dental plaque and more scientifically and effectively reduce oral diseases including gingivitis, periodontal disease and gingival bleeding.

[0003] Currently, the dental irrigators on the market mainly perform manual control of irrigation by looking in a mirror and then visually observing foreign matters on teeth. This causes visual blind spots. Teeth and foreign matters on the inner side of the oral cavity cannot be seen through the mirror, leaving visual dead corners, resulting in situations such as incomplete, inadequate and thorough flushing. In addition, the user maintains a posture during long-term operation, causing fatigue in the neck, waist and eyes. In the long run, the user does not want to perform dental irrigation, lacks the pleasure of dental irrigation, and finally affects oral health. Furthermore, if the user has tooth bleeding, it is also impossible to intelligently reduce the water flow and irrigation intensity according to the amount of tooth bleeding, thereby causing secondary damage to the bleeding point. Summary of the Invention

[0004] The main object of the present invention is to provide an oral irrigation method, an irrigation system and a dental irrigator, which overcome the deficiencies of the existing dental irrigators, can adjust the irrigation intensity and irrigation water volume according to the tooth bleeding situation to protect the bleeding area from secondary damage, and achieve a full-range and thorough cleaning of dental foreign matters.

[0005] The present invention adopts the following technical solutions:

[0006] On the one hand, an oral irrigation method includes:

[0007] Obtaining an oral image through an image acquisition device installed on the dental irrigator;

[0008] Controlling the water outlet of the water outlet nozzle of the dental irrigator based on the blood area and / or blood concentration in the obtained oral image.

[0009] Preferably, controlling the water outlet of the water outlet nozzle of the dental irrigator based on the blood area and / or blood concentration in the obtained oral image includes:

[0010] Based on the acquired oral image, extract the tooth region, and extract foreign objects in the tooth region. Determine whether the foreign object is blood. If so, calculate the blood area and / or blood concentration, and based on the blood area and / or blood concentration, control the water outlet of the water flosser to discharge water; if not, control the water outlet of the water flosser to discharge water based on the property of the foreign object.

[0011] Preferably, controlling the water outlet of the water flosser based on the blood area and / or blood concentration in the acquired oral image includes:

[0012] Based on the acquired oral image, extract the tooth region, and extract foreign objects in the tooth region. Determine whether the foreign object is blood. If so, calculate the blood area and / or blood concentration, convert the blood area and / or blood concentration into a bleeding level, and based on the bleeding level, control the water outlet of the water flosser to discharge water; if not, calculate the property of the foreign object, convert the property of the foreign object into a foreign object level, and based on the foreign object level, control the water outlet of the water flosser to discharge water.

[0013] Preferably, based on the acquired oral image, extracting the tooth region specifically includes:

[0014] Use opencv to obtain the number of rows and columns of the oral image;

[0015] Based on the rows and columns, loop through all pixel points on all columns and rows in four directions in sequence. If the tooth color is obtained, stop this loop, continue the next loop, and record the coordinates of all looped points until all loops are completed;

[0016] Mark the region composed of the recorded points as the non-tooth region, and extract the region composed of the remaining points in the image as the tooth region.

[0017] Preferably, based on the acquired oral image, extracting the tooth region, and extracting foreign objects in the tooth region specifically includes:

[0018] Based on the acquired oral image, extract the tooth region, and perform binarization processing of the THRESH_BINAR type with a threshold of 100 on the tooth region image using opencv; the color value of the binarized image is 0 or 255, the white part is marked as 0, and the others are marked as 255;

[0019] Record all regions with a color value of 255, mark them as foreign object regions, and record the corresponding coordinates.

[0020] Preferably, based on the acquired oral image, extracting the tooth region, and extracting foreign objects in the tooth region. Determine whether the foreign object is blood. If so, calculate the blood area and / or blood concentration specifically includes:

[0021] Traverse all pixel coordinates in the oral cavity image and compare them with the coordinates of the recorded foreign object area. If it is not a recorded point, set the corresponding pixel to white;

[0022] Use OpenCV to convert the adjusted oral cavity image into HSV format, and then compare the HSV values of each pixel with the corresponding values of blood HSV. If it is within the range of blood HSV values, it is judged as blood, and record the corresponding coordinates and corresponding HSV values;

[0023] If it is blood, use the OpenCV algorithm to calculate the size of the blood area and the blood concentration.

[0024] Preferably, based on the blood area and / or blood concentration in the obtained oral cavity image, controlling the water outlet of the water outlet nozzle of the irrigator includes:

[0025] Based on the blood area and / or blood concentration in the obtained oral cavity image, control the water flow rate of the water outlet nozzle of the irrigator to increase, decrease or remain unchanged.

[0026] Preferably, based on the blood area and / or blood concentration in the obtained oral cavity image, controlling the water outlet of the water outlet nozzle of the irrigator includes:

[0027] Based on the blood area and / or blood concentration in the obtained oral cavity image, control the water outlet force of the water outlet nozzle of the irrigator to increase, decrease or remain unchanged.

[0028] In a second aspect, an oral cavity flushing system includes:

[0029] An oral cavity image acquisition module for acquiring an oral cavity image through an image acquisition device installed on the irrigator;

[0030] A control module for controlling the water outlet of the water outlet nozzle of the irrigator based on the blood area and / or blood concentration in the obtained oral cavity image.

[0031] Preferably, the control module is specifically configured to, based on the obtained oral cavity image, extract the tooth area, extract foreign objects in the tooth area, judge whether the foreign objects are blood, if so, calculate the blood area and / or blood concentration, and based on the blood area and / or blood concentration, control the water outlet of the water outlet nozzle of the irrigator; if not, control the water outlet of the water outlet nozzle of the irrigator based on the attributes of the foreign objects.

[0032] Preferably, the control module is specifically configured to extract the tooth region based on the acquired oral cavity image, extract foreign objects in the tooth region, determine whether the foreign objects are blood, and if so, calculate the blood area and / or blood concentration, convert the blood area and / or blood concentration into a bleeding level, and control the water outlet of the water jet of the oral irrigator based on the bleeding level; if not, calculate the attributes of the foreign objects, convert the attributes of the foreign objects into a foreign object level, and control the water outlet of the water jet of the oral irrigator based on the foreign object level.

[0033] Preferably, the control module is specifically configured to control the water flow rate of the water outlet of the water jet of the oral irrigator to increase, decrease, or remain unchanged based on the blood area and / or blood concentration in the acquired oral cavity image.

[0034] Preferably, the control module is specifically configured to control the water jet force of the water outlet of the water jet of the oral irrigator to increase, decrease, or remain unchanged based on the blood area and / or blood concentration in the acquired oral cavity image.

[0035] In a third aspect, an oral irrigator includes a main body, a water outlet, and an image acquisition device; the water outlet and the image acquisition device are mounted on the main body, and further includes: the oral cavity flushing system described above.

[0036] In a fourth aspect, an oral irrigator includes a memory, a processor, and a computer program stored on the memory and executable on the processor, and when the processor executes the program, the steps of any one of the oral cavity flushing methods described above are implemented.

[0037] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0038] (1) The present invention acquires an oral cavity image through an image acquisition device mounted on the oral irrigator, extracts the tooth region and corresponding foreign objects based on the acquired oral cavity image, further determines whether the foreign objects are blood, and if they are blood, calculates the blood area and / or blood concentration, and controls the water outlet of the water jet of the oral irrigator based on the blood area and / or blood concentration in the acquired oral cavity image, that is, it can adjust the flushing force and flushing water volume according to the tooth bleeding situation to protect the bleeding area from secondary damage;

[0039] (2) The present invention acquires an oral cavity image through an image acquisition device mounted on the oral irrigator, extracts the tooth region and corresponding foreign objects based on the acquired oral cavity image, further determines whether the foreign objects are blood, and if they are blood, calculates the blood area and / or blood concentration, converts the blood area and / or blood concentration into a bleeding level, and controls the water outlet of the water jet of the oral irrigator based on the bleeding level, that is, it can convert the tooth bleeding situation into several levels, and adjust the flushing force and flushing water volume through the levels to protect the bleeding area from secondary damage;

[0040] (3) The present invention obtains oral cavity images through an image acquisition device installed on a dental irrigator, extracts the tooth region and corresponding foreign objects based on the obtained oral cavity images, and further determines whether the foreign objects are blood. If they are not blood, the water outlet of the dental irrigator is controlled to discharge water based on the attributes of the foreign objects (including but not limited to one or more of the foreign object area, foreign object type, and foreign object thickness), so as to achieve a comprehensive and thorough cleaning of tooth foreign objects;

[0041] (4) The present invention can, after flushing foreign objects (including blood) for a certain period of time, re-analyze the foreign objects in the corresponding area. If the foreign objects are flushed clean, the flushing is stopped; if there are still foreign objects, the flushing intensity and flushing water volume are adjusted for flushing; if the foreign objects still exist after a preset time or a preset number of times, the flushing is stopped;

[0042] (5) The present invention can give voice prompts and / or information prompts for the tooth detection results and / or tooth flushing results, so that the user can have an intuitive understanding of the tooth state.

[0043] The above description is only an overview of the technical solution of the present invention. In order to be able to more clearly understand the technical means of the present invention, it can be implemented in accordance with the content of the specification. And in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable, the following specific embodiments of the present invention are listed.

[0044] Based on the following detailed description of the specific embodiments of the present invention in conjunction with the drawings, those skilled in the art will more clearly understand the above and other purposes, advantages and features of the present invention. Brief Description of the Drawings

[0045] Figure 1 It is a brief flow chart of the oral cavity flushing method according to an embodiment of the present invention;

[0046] Figure 2 It is a detailed flow chart of the oral cavity flushing method according to an embodiment of the present invention;

[0047] Figure 3 It is a flow chart for extracting the tooth region according to an embodiment of the present invention;

[0048] Figure 4 It is a flow chart for extracting foreign objects in the tooth region according to an embodiment of the present invention;

[0049] Figure 5 It is a flow chart for extracting blood in the tooth region according to an embodiment of the present invention;

[0050] Figure 6 It is a flow chart for extracting other foreign objects in the tooth region according to an embodiment of the present invention;

[0051] Figure 7 It is a structural block diagram of the oral cavity flushing system according to an embodiment of the present invention;

[0052] Figure 8 This is the control schematic diagram of the oral irrigator according to the embodiment of the present invention. Specific embodiments

[0053] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0054] In the description of the present invention, it should be noted that the terms "including", "comprising" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, the element defined by the phrase "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the element.

[0055] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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 a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0056] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection, can be a mechanical connection, can be an electrical connection, can be directly connected, or can be indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0057] See Figure 1 As shown, on the one hand, an oral irrigation method of the present invention includes:

[0058] S101, obtaining an oral image through an image acquisition device installed on the oral irrigator;

[0059] S102. Control the water outlet of the oral irrigator based on the blood area and / or blood concentration in the acquired oral image.

[0060] Through the above control method, it is realized that the water outlet of the oral irrigator is automatically controlled according to the acquired oral image, without manual control and adjustment, which is convenient for users. When using the above automatic control method of the present invention, the oral irrigator only needs to be placed in the oral cavity during use to achieve automatic tooth cleaning, reducing the use difficulty and increasing the safety. In particular, controlling the water outlet of the oral irrigator based on the blood area and / or blood concentration in the acquired oral image can adjust the flushing intensity and flushing water volume according to the tooth bleeding situation to protect the bleeding area from secondary injury.

[0061] Further, the foreign matters in this embodiment include blood, dental calculus, and / or food residues, etc.

[0062] In one embodiment, controlling the water outlet of the oral irrigator based on the blood area and / or blood concentration in the acquired oral image includes:

[0063] Based on the acquired oral image, extract the tooth area, and extract the foreign matters in the tooth area. Determine whether the foreign matter is blood. If so, calculate the blood area and / or blood concentration, and control the water outlet of the oral irrigator based on the blood area and / or blood concentration. If not, control the water outlet of the oral irrigator based on the attributes of the foreign matter.

[0064] In this embodiment, if the identified foreign matter is blood, it is necessary to control the water outlet of the oral irrigator according to the blood area and / or blood concentration, that is, adjust the flushing intensity and flushing water volume according to the tooth bleeding situation to protect the bleeding area from secondary injury. If the identified foreign matter is not blood, adjust the flushing intensity and flushing water volume according to the foreign matter area to ensure that the foreign matter is quickly flushed away without harming the oral cavity.

[0065] The attributes of the foreign matter include, but are not limited to, one or more of the foreign matter area, foreign matter type, and foreign matter thickness.

[0066] In one embodiment, controlling the water outlet of the oral irrigator based on the blood area and / or blood concentration in the acquired oral image includes:

[0067] Based on the acquired oral image, extract the tooth area, and extract the foreign matters in the tooth area. Determine whether the foreign matter is blood. If so, calculate the blood area and / or blood concentration, convert the blood area and / or blood concentration into a bleeding level, and control the water outlet of the oral irrigator based on the bleeding level. If not, calculate the attributes of the foreign matter, convert the attributes of the foreign matter into a foreign matter level, and control the water outlet of the oral irrigator based on the foreign matter level.

[0068] In this embodiment, in order to simplify the adjustment, the adjustment can be quantified. That is, the blood area and / or blood concentration are converted into bleeding levels, such as low, medium, high, etc., and the corresponding flushing adjustment gears can also be set as low, medium, high, etc. How the bleeding level corresponds to the flushing adjustment gear can be set as needed, and this embodiment does not make specific limitations. Correspondingly, for other foreign objects, the attributes of the foreign objects are converted into foreign object levels, such as low, medium, high, etc., and the corresponding flushing adjustment gears can also be set as low, medium, high, etc. How the bleeding level corresponds to the flushing adjustment gear can be set as needed, and this embodiment does not make specific limitations.

[0069] Specifically, referring to Figure 2 as shown, a method for oral flushing according to the present invention includes:

[0070] S201, using an image acquisition device to perform real-time shooting on the tooth area of the oral cavity to obtain a real-time video stream and each frame of image;

[0071] S202, performing image analysis on each frame of the video stream using the opencv algorithm, and analyzing and extracting the tooth area and non-tooth area of a frame of image;

[0072] S203, performing secondary image analysis on the extracted tooth area image, and analyzing and extracting foreign objects in the tooth area;

[0073] S204, determining whether the foreign object is blood. If it is, execute S205; otherwise, execute S207;

[0074] S205, calculating the blood area size, blood concentration and position coordinates, and quantifying them into low, medium and high bleeding levels;

[0075] S206, automatically adjusting the flushing intensity according to the bleeding level, and not flushing at the high level;

[0076] S207, calculating the foreign object area size and position coordinates, and quantifying them into low, medium and high levels;

[0077] S208, automatically adjusting the flushing intensity according to the foreign object level.

[0078] Specifically, referring to Figure 3 as shown, performing image analysis on each frame of the video stream using the opencv algorithm, and analyzing and extracting the tooth area and non-tooth area of a frame of image, including:

[0079] S301, using opencv to obtain the number of rows and columns of the image;

[0080] S302, Based on rows and columns respectively, loop through all pixel points on all columns and rows in four directions in sequence. If a tooth color is encountered, stop this loop, continue the next loop, and record the coordinates of all points looped until all loops are completed;

[0081] S303, Mark the area composed of the points recorded after S302 as a non-tooth area, and mark the area composed of the remaining points in the image as a tooth area.

[0082] The described tooth colors include white, yellow, or black. Specifically, as long as it is white, it is judged as a tooth color. Due to reasons such as not brushing teeth for a long time or smoking for a long time, some people's tooth colors show yellow and black. If the area showing yellow and black exceeds a certain preset value (i.e., there is a large area of yellow and black), then judge yellow or black as a tooth color. If the area showing yellow and black does not exceed a certain preset value, then judge yellow or black as a foreign object.

[0083] Specifically, refer to Figure 4 As shown, perform secondary image analysis on the extracted tooth area image to analyze and extract foreign objects in the tooth area, including:

[0084] S401, Use opencv to perform binarization processing of type THRESH_BINAR with a threshold of 100 on the tooth area image; the color values of the processed image are 0 or 255, the whiter parts on the teeth are 0, and the others are 255;

[0085] S402, Analyze the processed image, record all areas with a color value of 255, mark them as foreign object areas, and write down the corresponding coordinates;

[0086] S403, Extract blood pixel points from the foreign object image to analyze and extract blood or other foreign objects.

[0087] Specifically, refer to Figure 5 As shown, extract blood pixel points from the foreign object image to analyze and extract blood, including:

[0088] S501, Traverse all pixel point coordinates of the original image, compare with the coordinates recorded in S402, and set the point to white if it is not a recorded point; after the above processing, only the recorded point area has color on the image, and the others are white;

[0089] S502, Use opencv to convert the image information into hsv format, and then compare the hsv value of each pixel point with the corresponding value of blood hsv respectively. The part within the blood hsv value range is the blood part, and record the corresponding coordinates and their corresponding hsv values;

[0090] S503. Calculate the area of the region where the above coordinates are located using OpenCV;

[0091] S504. Calculate the average value of HSV corresponding to the coordinate region, and compare it with the average value of the HSV range of the blood color. The larger the value, the thicker the blood, that is, the greater the blood concentration.

[0092] In summary, in this embodiment, if the image analysis shows that it is blood, use the OpenCV algorithm to calculate the size of the blood area in the image and the depth of the blood color, and then convert it into low, medium, and high levels of bleeding volume according to the area size and concentration, and automatically adjust the flushing intensity and flushing water volume according to the low, medium, and high levels of bleeding volume. At the high level, this area is not flushed to prevent secondary damage to this bleeding area caused by flushing the teeth.

[0093] Specifically, as shown in Figure 6 Extract the blood pixel points from the foreign object image and analyze and extract other foreign objects, including:

[0094] S601. Traverse all pixel point coordinates of the original image and compare them with the coordinates of the foreign object area (S402). If it is not a recorded point, set this point to white; after the above processing, only the recorded point area has color on the image, and the others are white;

[0095] S602. Use OpenCV to convert the image information into HSV format, and then compare the HSV value of each pixel point with the corresponding value of the blood HSV respectively. If it is not within the blood HSV value range, it is the other foreign object part, and record the corresponding coordinates;

[0096] S603. Calculate the area of the region where the above coordinates are located using OpenCV;

[0097] S604. Compare the calculated area with the preset level area to obtain the foreign object level.

[0098] In summary, in this embodiment, if it is analyzed that it is other foreign objects except blood, use OpenCV to calculate the property size of this foreign object, and also quantify it into low, medium, and high levels, and then automatically match the flushing intensity and flushing water volume according to the low, medium, and high levels of the foreign object.

[0099] It should be noted that the above low, medium, and high levels are only examples. Specifically in implementation, more or fewer levels can be set according to needs, and which level corresponds to how much water outflow rate or water outflow intensity can also be set according to actual needs. This embodiment does not make specific limitations.

[0100] Furthermore, the oral flushing method of this embodiment further includes:

[0101] After flushing foreign objects (including blood) for a certain period of time, the foreign objects in this area will be analyzed again. If the foreign objects are flushed clean, the flushing will stop; if there are still foreign objects, the gear will be adjusted continuously for flushing.

[0102] If foreign objects still exist after flushing for a certain period of time, it may be analyzed that they are dental calculus. At this time, the flushing of this area will stop, and the user is recommended to see a dentist to protect oral health.

[0103] Furthermore, this embodiment can control the water flow rate of the water outlet nozzle of the irrigator to increase, decrease or remain unchanged based on the blood area and / or blood concentration in the acquired oral cavity image; and / or, control the water outlet force of the water outlet nozzle of the irrigator to increase, decrease or remain unchanged based on the blood area and / or blood concentration in the acquired oral cavity image.

[0104] Specifically, for the case where the foreign object is blood, if it is determined to be at a high level according to the blood area and / or blood concentration, the water outlet nozzle of the irrigator will not perform flushing; if it is at a medium level, low - gear flushing can be started (such as low motor speed, flushing for 1 second); if it is at a low level, medium - gear flushing can be started (such as medium motor speed, flushing for 3 seconds), on the one hand, flushing the blood away, and at the same time protecting the bleeding area from secondary damage.

[0105] Specifically, for the case where the foreign object is non - blood, when the area S of the foreign object is greater than or equal to the judgment threshold Sthl, the water outlet nozzle of the irrigator will be controlled to perform flushing.

[0106] In this embodiment, according to the area S of the foreign object, the irrigator can be divided into three flushing gears as follows:

[0107] When Sthl < S < Sl, the area of the foreign object is small, and the low - gear is started (low motor speed, flushing for 1 second);

[0108] When Sl < S < Sh, the area of the foreign object is medium, and the medium - gear is started (medium motor speed, flushing for 3 seconds);

[0109] When S > Sh, the area of the foreign object is large, and the high - gear is started (high motor speed, flushing for 5 seconds).

[0110] The above is only a schematic embodiment, and the specific gears and flushing time can be set according to actual applications, and the embodiments of the present invention are not limited thereto.

[0111] In this embodiment, the image acquisition device includes a visible - light imaging device, an infrared thermal imaging device or an ultraviolet imaging device, and specifically may be a flexible camera; the image acquisition device and the irrigator form a detachable connection or a non - detachable connection.

[0112] It can be understood that the present invention can also adopt other image acquisition devices, as long as it can acquire oral images and can achieve the above functions.

[0113] In this embodiment, the video stream collected by the image acquisition device can be transmitted to an external terminal device such as a mobile phone through a wireless network, and after being analyzed and processed on the mobile phone, it is returned to the water flosser to control the water outlet nozzle to discharge water. At the same time, voice, information, or image prompts are given in the external terminal device. Of course, it can also be that the video stream collected by the image acquisition device is directly analyzed and processed in the water flosser to control the water outlet nozzle of the water flosser to discharge water, and at the same time, the analysis and processing results are sent to an external terminal device such as a mobile phone through a wireless network, and voice, information, or image prompts are given in the external terminal device.

[0114] See Figure 7 As shown, on the other hand, an oral irrigation system of the present invention includes:

[0115] An oral image acquisition module 701, configured to acquire an oral image through an image acquisition device installed on a water flosser;

[0116] A control module 702, configured to control the water outlet nozzle of the water flosser to discharge water based on the blood area and / or blood concentration in the acquired oral image.

[0117] In one embodiment, the control module 702 is specifically configured to, based on the acquired oral image, extract the tooth area, extract the foreign objects in the tooth area, determine whether the foreign objects are blood, if so, calculate the blood area and / or blood concentration, and based on the blood area and / or blood concentration, control the water outlet nozzle of the water flosser to discharge water; if not, control the water outlet nozzle of the water flosser to discharge water based on the attributes of the foreign objects.

[0118] In one embodiment, the control module 702 is specifically configured to, based on the acquired oral image, extract the tooth area, extract the foreign objects in the tooth area, determine whether the foreign objects are blood, if so, calculate the blood area and / or blood concentration, convert the blood area and / or blood concentration into a bleeding level, and based on the bleeding level, control the water outlet nozzle of the water flosser to discharge water; if not, calculate the attributes of the foreign objects, convert the attributes of the foreign objects into a foreign object level, and based on the foreign object level, control the water outlet nozzle of the water flosser to discharge water.

[0119] In one embodiment, the control module 702 is specifically configured to control the water outlet flow rate of the water outlet nozzle of the water flosser to increase, decrease, or remain unchanged based on the blood area and / or blood concentration in the acquired oral image.

[0120] In one embodiment, the control module 702 is specifically configured to control the water outlet force of the water outlet nozzle of the dental irrigator to increase, decrease, or remain unchanged based on the blood area and / or blood concentration in the acquired oral cavity image.

[0121] For the specific implementation of the oral cavity image acquisition module 701 and the control module 702, refer to an oral cavity rinsing method, which will not be repeated here.

[0122] In a third aspect, a dental irrigator according to the present invention includes a main body, a water outlet nozzle, and an image acquisition device; the water outlet nozzle and the image acquisition device are installed on the main body, and the dental irrigator further includes: the oral cavity rinsing system. In this embodiment, the oral cavity rinsing system is implemented by a controller (such as an MCU).

[0123] To facilitate the user to observe their own oral cavity, it further includes an APP installed on a smart terminal. The APP establishes a wireless connection with the image acquisition device to real-time display the imaging area of the image acquisition device on the APP, or display the oral cavity photos taken by the image acquisition device on the APP. In this way, the user can observe their own oral cavity in real time when rinsing their teeth, or take pictures of their own oral cavity for careful observation after retention.

[0124] See Figure 8 As shown, the control principle of the dental irrigator of the present invention can be as follows: A power supply module 804 connected to the controller 801, the image acquisition device 802, and the pump group 803 supplies power to the controller 801, the image acquisition device 802, and the pump group 803 respectively; a control switch 805 connected to the controller 801 controls the controller 801 to start working; the image acquisition device 802 is connected to the controller 801 to send the acquired oral cavity image to the controller 801; the controller 801 identifies the oral cavity image. When the controller 801 identifies an oral cavity image that meets the conditions, it controls the connected pump group 803; the pump group 803 controls the water in the water tank 806 to spray out from the water outlet nozzle 807 for tooth rinsing.

[0125] It can be understood that although the above description takes the automatic control of the controller as an example, "controlling the water outlet of the water outlet nozzle of the dental irrigator based on the blood area and / or blood concentration in the acquired oral cavity image" can actually also be manually controlled, or both automatic control and manual control functions exist. When both automatic control and manual control exist, if the control switch 805 is turned on, automatic control is preferentially used. If the control switch 805 is turned off, manual control is used. When using manual control, a manual control switch can be set on the dental irrigator body, and a prompting device is also set. When it is recognized from the acquired oral cavity image that tooth rinsing or water flow adjustment is required, the prompting device can be used for prompting, and the user can perform control or adjustment according to the prompt.

[0126] In a fourth aspect, a dental irrigator of the present invention includes a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the program, the steps of the oral cavity rinsing method are implemented.

[0127] Specifically, the processor is configured to:

[0128] Obtain an oral cavity image through an image acquisition device installed on the dental irrigator;

[0129] Based on the blood area and / or blood concentration in the acquired oral cavity image, control the water outlet of the water outlet nozzle of the dental irrigator.

[0130] In this embodiment, the memory and the processor can be integrated on the controller and implemented by the controller.

[0131] As described above, it is only a preferred specific embodiment of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, makes equivalent replacements or changes, and should be covered by the protection scope of the present invention.

Claims

1. An oral irrigation method for a dental irrigator, characterized in that, it includes: The processor obtains an oral image through an image acquisition device installed on the dental irrigator; Based on the blood area and / or blood concentration in the obtained oral image, the processor controls the water outlet of the water outlet nozzle of the dental irrigator; Based on the blood area and / or blood concentration in the obtained oral image, the processor controls the water outlet of the water outlet nozzle of the dental irrigator, including: Based on the obtained oral image, the processor extracts the tooth area, extracts foreign objects in the tooth area, determines whether the foreign object is blood, if so, calculates the blood area and / or blood concentration, and based on the blood area and / or blood concentration, controls the water outlet of the water outlet nozzle of the dental irrigator; if not, based on the attributes of the foreign object, controls the water outlet of the water outlet nozzle of the dental irrigator.

2. The oral irrigation method for a dental irrigator according to claim 1, characterized in that, Based on the blood area and / or blood concentration, controlling the water outlet of the water outlet nozzle of the dental irrigator includes: Converting the blood area and / or blood concentration into a bleeding level, and controlling the water outlet of the water outlet nozzle of the dental irrigator based on the bleeding level; Based on the attributes of the foreign object, controlling the water outlet of the water outlet nozzle of the dental irrigator includes: Calculating the attributes of the foreign object, converting the attributes of the foreign object into a foreign object level, and controlling the water outlet of the water outlet nozzle of the dental irrigator based on the foreign object level.

3. The oral irrigation method for a dental irrigator according to any one of claims 1 or 2, characterized in that, Based on the obtained oral image, extracting the tooth area specifically includes: Using opencv to obtain the number of rows and columns of the oral image; Based on the rows and columns, sequentially loop through all pixel points on all columns and rows in four directions, stop this loop if the tooth color is obtained, continue the next loop, and record the coordinates of all looped points until all loops are completed; Mark the area composed of the recorded points as the non-tooth area, and extract the area composed of the remaining points in the image as the tooth area.

4. The oral irrigation method for a dental irrigator according to any one of claims 1 or 2, characterized in that, Based on the obtained oral image, extracting the tooth area and extracting foreign objects in the tooth area specifically includes: Based on the obtained oral image, extracting the tooth area, and performing binary processing of the THRESH_BINAR type with a threshold of 100 on the tooth area image using opencv; the color value of the image after binary processing is 0 or 255, the white part is marked as 0, and the others are marked as 255; Record all areas with a color value of 255, mark them as foreign object areas, and record the corresponding coordinates.

5. The oral irrigation method for a dental irrigator according to claim 4, characterized in that, Based on the obtained oral image, extracting the tooth area and extracting foreign objects in the tooth area, determining whether the foreign object is blood, if so, calculating the blood area and / or blood concentration specifically includes: Traverse all pixel point coordinates in the oral image, compare them with the coordinates of the recorded foreign object area, and set the corresponding pixel points to white if they are not recorded points; Use OpenCV to convert the adjusted oral cavity image into the HSV format, and then compare the HSV values of each pixel point with the corresponding values of blood HSV. If it is within the range of blood HSV values, it is judged as blood, and the corresponding coordinates and the corresponding HSV values are recorded; If it is blood, use the OpenCV algorithm to calculate the size of the blood area and the blood concentration.

6. The oral cavity flushing method of the oral irrigator according to claim 1, characterized in that, Controlling the water outlet of the water outlet nozzle of the oral irrigator includes: Controlling the water flow rate of the water outlet nozzle of the oral irrigator to increase, decrease or remain unchanged.

7. The oral cavity flushing method of the oral irrigator according to claim 1, characterized in that, Controlling the water outlet of the water outlet nozzle of the oral irrigator includes: Controlling the water outlet force of the water outlet nozzle of the oral irrigator to increase, decrease or remain unchanged.

8. An oral cavity flushing system, characterized in that, including: An oral cavity image acquisition module for acquiring an oral cavity image through an image acquisition device installed on the oral irrigator; A control module for controlling the water outlet of the water outlet nozzle of the oral irrigator based on the blood area and / or blood concentration in the acquired oral cavity image; The control module is specifically used to, based on the acquired oral cavity image, extract the tooth area, extract foreign objects in the tooth area, judge whether the foreign object is blood, if so, calculate the blood area and / or blood concentration, and based on the blood area and / or blood concentration, control the water outlet of the water outlet nozzle of the oral irrigator; if not, control the water outlet of the water outlet nozzle of the oral irrigator based on the attributes of the foreign object.

9. The oral cavity flushing system according to claim 8, characterized in that, Controlling the water outlet of the water outlet nozzle of the oral irrigator based on the blood area and / or blood concentration includes: Converting the blood area and / or blood concentration into a bleeding level, and controlling the water outlet of the water outlet nozzle of the oral irrigator based on the bleeding level; Controlling the water outlet of the water outlet nozzle of the oral irrigator based on the attributes of the foreign object includes: Calculating the attributes of the foreign object, converting the attributes of the foreign object into a foreign object level, and controlling the water outlet of the water outlet nozzle of the oral irrigator based on the foreign object level.

10. The oral cavity flushing system according to claim 8, characterized in that, Controlling the water outlet of the water outlet nozzle of the oral irrigator includes: controlling the water flow rate of the water outlet nozzle of the oral irrigator to increase, decrease or remain unchanged.

11. The oral cavity flushing system according to claim 8, characterized in that, Controlling the water outlet of the water outlet nozzle of the oral irrigator includes: controlling the water outlet force of the water outlet nozzle of the oral irrigator to increase, decrease or remain unchanged.

12. An oral irrigator includes a main body, a water outlet nozzle and an image acquisition device; the water outlet nozzle and the image acquisition device are installed on the main body, characterized in that, further including: The oral cavity flushing system according to any one of claims 8 to 11.

13. An oral irrigator includes a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the steps of the method according to any one of claims 1 to 7.

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