Skin -type AI intelligent white hair picking comb

Abstract

The application discloses a skin type AI intelligent white hair picking comb, which comprises a comb shell, a comb tooth group, a working groove, a micro RGB visual sensor, a micro mute electric scissors and an AI main control module; the open working groove between the comb teeth can tightly adhere to the scalp, so that the hair can naturally slide into the groove; the visual sensor above each groove can collect the image in the groove in real time, and the micro scissors at the bottom can be flush with the scalp. The core lies in that the AI main control module can analyze the image based on a pure visual recognition algorithm, and only when it is judged that there is only white hair in the groove and no black hair, the corresponding micro scissors can be driven to perform a cutting action; if there is black hair in the image, the scissors remain stationary. The scheme completely discards the complex mechanical sorting structure, avoids the problems of hair clamping, hair pulling and black hair cutting from the root, and realizes the close adhesion to the scalp, safe and painless, precise and automatic white hair trimming.

Description

Technical Field

[0001] This invention relates to the field of personal care small household appliance technology, specifically a skin-friendly AI intelligent hair trimming comb. Background Technology

[0002] With the fast pace of life and increasing work pressure, the number of people experiencing gray hair is increasing and showing a trend towards younger ages. Currently, the main methods for dealing with gray hair include plucking and dyeing. However, manually plucking gray hairs not only causes pain but may also damage hair follicles, leading to folliculitis or permanent hair loss; while long-term use of chemical hair dyes carries the risk of irritating the scalp, damaging hair quality, and even causing allergies, and the process is also cumbersome and time-consuming.

[0003] To overcome these problems, some gray hair removal combs with trimming functions have appeared on the market. These products attempt to selectively remove gray hair through a combination of mechanical and electronic methods. However, existing technologies generally suffer from the following key flaws, preventing them from meeting users' core needs for convenient, safe, and precise hair trimming: 1. Reliance on complex mechanical sorting structures: Most products employ active mechanical structures such as pushing, flicking, pulling, and clamping to separate black and white hair before cutting. For example, a miniature robotic arm pushes or pulls black hair away from the cutting area, leaving only white hair for cutting. These structures are extremely complex, increasing not only manufacturing costs and failure rates but also making them prone to "hair jamming" in actual use—hair getting caught in the mechanical parts, causing a strong pulling sensation or even breakage, resulting in a very poor user experience.

[0004] 2. Inability to achieve true skin-friendly trimming: Because the aforementioned mechanical sorting structure requires a certain amount of operating space, the cutting mechanism of these products cannot be flush with the scalp surface. During combing, the comb teeth or cutting parts must maintain a certain distance from the scalp to prevent the mechanical parts from scratching it. However, this directly results in gray hairs near the scalp roots not being cut, leaving obvious gray stubble. The trimming effect is incomplete, forcing users to use the product frequently.

[0005] 3. A fundamental conflict exists between the identification and execution logic, leading to a high rate of incorrect cutting: Existing technology treats "sorting" and "cutting" as two independent steps. Its control logic is "after identifying gray hair, mechanically sort it first, then cut it." At the scalp roots where hair is densely intertwined, the reliability of the mechanical sorting step is extremely low, often failing to completely separate black and white hair. Once sorting fails, the cutting mechanism is highly prone to mistakenly cutting black hair during operation, or jamming due to both black and white hair being caught simultaneously. The fundamental problem is that the precision and reliability of mechanical movements are far from sufficient to handle soft, small, and densely packed objects like hair.

[0006] In summary, the fundamental problem with existing technologies lies in attempting to solve precise post-processing issues using imprecise mechanical movements. This leads to a series of problems, including complex product structures, susceptibility to hair entrapment, high rates of incorrect cutting, and inability to be applied close to the scalp. Therefore, there is an urgent need in this field for a new solution for gray hair trimming that can fundamentally eliminate mechanical sorting and achieve safe, precise, painless operation that can be applied close to the scalp. Summary of the Invention

[0007] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a skin-friendly AI intelligent hair-trimming comb to solve the problems mentioned in the background technology.

[0008] To achieve the above objectives, a specific embodiment of the present invention provides a skin-friendly AI intelligent gray hair trimming comb, comprising a comb body shell, a comb tooth assembly, working grooves, a miniature RGB visual sensor, a miniature silent electric scissor, and an AI main control module; the comb tooth assembly consists of multiple comb tooth units, fixedly disposed at the front end of the comb body shell, with at least one open working groove formed between adjacent comb tooth units, the working groove extending along the combing direction, and its bottom opening structure designed to directly conform to the user's scalp surface during combing; a miniature RGB visual sensor is fixedly installed directly above each working groove, its lens pointing vertically downwards, its field of view covering the single working groove below it, for real-time acquisition of color images of hair entering the working groove; the miniature silent electric scissor is fixedly installed at the bottom of each working groove, its stationary and moving blades having their cutting surfaces aligned with the bottom opening of the working groove. The surface is flush with the scalp, meaning it lies on a plane that fits in contact with the scalp. This miniature silent electric scissors only has an opening and closing cutting function and does not have any mechanical sorting structure for pushing, flicking, pulling, or clamping hair. The AI ​​main control module is fixedly installed in the internal cavity of the comb body shell and is electrically connected to the signal output terminals of all the miniature RGB vision sensors via ribbon cables, and is also electrically connected to the drive terminals of all the miniature silent electric scissors via ribbon cables. The AI ​​main control module has a built-in image processing chip and a white hair recognition algorithm, and is configured to: receive an image from the miniature RGB vision sensor above any working groove; and only when the analysis and identification determine that there is no black hair and only white hair in the image, output a closing cutting command to the miniature silent electric scissors in the corresponding working groove; when black hair is identified in the image, no command is output or a prohibition command is output, and the miniature silent electric scissors remain in an open and stationary state.

[0009] In addition, the skin-friendly AI intelligent hair-trimming comb proposed in this application may also have the following additional technical features: In one embodiment of this application, the width of the working groove is designed such that a single hair or a single bundle of hair can naturally and passively slide into the bottom of the groove by relying solely on combing force.

[0010] In one embodiment of this application, the front tips of both the stationary and moving blades of the miniature silent electric scissors are blunt and rounded to prevent scratches when sliding close to the scalp.

[0011] In one embodiment of this application, the gray hair recognition algorithm built into the AI ​​main control module is based on threshold judgment in color space, which only distinguishes between black pixels and white pixels in the image to determine whether there is black hair in the image.

[0012] In one embodiment of this application, the comb shell is an ergonomic shell suitable for one-handed gripping, and a power supply module is fixedly installed inside it. The power supply module is a rechargeable lithium battery, which is electrically connected to the power input terminal of the AI ​​main control module, the power input terminal of each of the miniature RGB vision sensors, and the power input terminal of each of the miniature silent electric scissors, respectively, to provide working power.

[0013] In one embodiment of this application, a start / stop switch is embedded and fixed on the surface of the gripping area of ​​the comb body shell. The start / stop switch is connected in series to the main power supply circuit of the power supply module to control the power supply of the whole machine. A charging interface mounting hole is provided at the bottom of the comb body shell, and the charging interface is fixedly installed in the hole and electrically connected to the charging terminal of the power supply module.

[0014] In one embodiment of this application, the comb body shell, the comb teeth assembly, and the inner wall of the working groove are all treated with a smooth surface, so that the cut white hair fragments can fall off naturally under gravity or gentle shaking.

[0015] A method for controlling gray hair trimming based on the skin-friendly AI intelligent gray hair trimming comb, wherein the AI ​​main control module executes the following control logic steps: Step S1: During the user's skin-friendly hair combing process, when the hair passively slides into any working groove, the miniature RGB vision sensor above the groove is commanded to continuously acquire color image frames within the groove in real time. Step S2: Run the gray hair recognition algorithm independently on each received frame of image to determine whether there is a region of black hair in the image; Step S3: If the current frame determines that there is black hair, a keep still command is sent to the miniature silent electric scissors corresponding to the working groove. The scissors remain open, allowing all hair to pass through without damage. Step S4: If the current frame determines that only white hair exists, send a closing cut command to the miniature silent electric scissors corresponding to the working groove, drive it to close once to cut all the white hair in the groove close to the scalp, and then immediately reset and open to prepare for the next recognition and cutting cycle.

[0016] In one embodiment of this application, the judgment and shearing are performed independently for each groove. That is, the micro RGB vision sensor above each working groove, the corresponding independent judgment thread in the AI ​​main control module, and the micro silent electric scissors at the bottom of the groove constitute an independent recognition and shearing closed-loop unit, and the units do not interfere with each other.

[0017] A skin-friendly AI-powered smart hair-splitting comb for gray hair includes a comb-shaped overall appearance. The comb teeth form open working grooves that fit snugly against the skin. The working grooves integrate a micro RGB visual sensor that takes vertically downward images and a micro cutting mechanism with a cutting surface flush with the scalp. The working grooves have no mechanical structures for actively separating black and white hairs. The built-in AI main control module executes pure visual logic control: "If black hair is detected in the groove image, do not cut; only cut if pure white hair is detected."

[0018] The advantages of this invention compared to existing technologies are: (1) By adopting the purely visual judgment logic of "not cutting black hair and only cutting pure white hair", the scissors will never move on the area mixed with black hair from the source of decision-making, thus realizing the physical protection of black hair and solving the core pain point of accidentally cutting black hair.

[0019] (2) The complex mechanical sorting mechanisms such as pushing, pulling, and clamping have been completely eliminated, and only the necessary vision sensors and shearing mechanisms have been retained. The structure is simple and there are few parts, which greatly reduces the failure rate and production complexity, improves product reliability, and basically eliminates the possibility of "stuck".

[0020] (3) The cutting edge of the cutting mechanism is on the same plane as the bottom of the working groove and the scalp surface, which can achieve close combing and cutting of the scalp. It can cut the white hair from the root without leaving any residue, and the trimming effect is higher than that of non-skin-adhesive products.

[0021] (4) Users can simply comb their hair normally like using a regular comb. There is no need for any additional operations such as searching for or sorting out gray hairs. As the comb passes over the hair, the gray hairs are automatically picked out and cut. The whole process is painless and without pulling, achieving the convenient experience of "cutting with just one comb", and the user threshold is extremely low.

[0022] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This invention provides a three-dimensional, skin-friendly AI intelligent hair-trimming comb for gray hair in one embodiment. Figure 1 ; Figure 2 This is a schematic diagram of the structure of a skin-friendly AI intelligent hair-trimming comb in one embodiment of the present invention. Figure 1 ; Figure 3 This is a schematic diagram of the electrical connection and control signal relationship of a skin-friendly AI intelligent hair-trimming comb in one embodiment of the present invention; Figure 4 This is a flowchart of the white hair trimming control logic of the AI ​​main control module of a skin-friendly AI intelligent white hair trimming comb according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the groove-by-groove independent recognition-cutting closed-loop unit of a skin-friendly AI intelligent hair-trimming comb according to an embodiment of the present invention.

[0025] Explanation of reference numerals in the attached figures: 1. Comb body shell; 2. Comb teeth assembly; 3. Working groove; 4. Miniature RGB vision sensor; 5. Miniature silent electric scissors; 6. AI main control module; 7. Power supply module; 8. Start / stop switch; 9. Charging interface. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] like Figures 1 to 5 As shown in the figure, an AI-powered smart hair-trimming comb that is skin-friendly according to an embodiment of the present invention has an overall appearance in the shape of a conventional comb, making it easy for users to hold and use.

[0028] In one embodiment of this application, the comb includes a comb housing 1 that serves as a main support and accommodating space. The comb housing 1 preferably features an ergonomic streamlined design and is made of ABS engineering plastic with a non-slip and skin-friendly surface treatment to ensure a stable and comfortable grip when held with one hand. The comb housing 1 contains a main cavity for housing core control and power supply components.

[0029] In one embodiment of this application, a comb tooth assembly 2 is fixedly disposed at the front end of the comb body shell 1. The comb tooth assembly 2 consists of multiple comb tooth units arranged in parallel to each other. The material of these comb tooth units needs to have a certain degree of flexibility and strength, for example, it can be made of food-grade silicone or modified PP plastic, and its tip is a smooth round head to ensure that no discomfort or damage will occur when directly contacting and scratching the scalp. Crucially, a working groove 3 is formed between two adjacent comb tooth units. Each working groove 3 is an open, narrow groove extending along the combing direction (i.e., from the front end of the comb to the rear end). Its bottom is a completely open opening, and the bottom surface of this opening is on the same plane as the tip of the comb tooth unit. This ensures that when the user presses the comb against the scalp to comb, the bottom opening of the working groove 3 can completely and tightly fit against the scalp surface, achieving a "skin-to-skin" operation, thereby being able to deal with gray hair closest to the hair roots.

[0030] In one embodiment of this application, the width of the working groove 3 is carefully designed. Its width is slightly larger than the average diameter of a single hair, but much smaller than the width of a clump of uncombed, tangled hair. This design aims to allow hair to slide naturally, passively, individually or in very small bundles, along the inner wall of the working groove 3 and lie flat at the bottom of the groove when the user applies normal combing force. The entire process requires no additional mechanical mechanisms (such as clips or picks) to actively "capture" or "sort" the hair, thus eliminating the possibility of hair getting stuck physically. The inner wall of the working groove 3, as well as the contact surfaces of the entire comb tooth assembly 2 and the comb body shell 1, undergo a high-gloss surface treatment, such as spraying a Teflon coating or mirror polishing. This prevents cut white hair fragments from adhering and allows them to be completely removed by gravity or gentle shaking by the user, facilitating cleaning.

[0031] In one embodiment of this application, to achieve intelligent recognition, a miniature RGB visual sensor 4 is fixedly installed on the inner wall of the comb housing 1 directly above each working groove 3. The lens of this sensor is mounted strictly vertically downwards, and its field of view, focal length, and depth of field are precisely calibrated to ensure clear and complete coverage of the entire internal space of the corresponding working groove 3 directly below it, without capturing images of adjacent grooves to avoid signal crosstalk. The miniature RGB visual sensor 4 is used to acquire color digital images of the hair within its corresponding working groove 3 in real time at a high frame rate (e.g., 30 frames per second or higher). The RGB sensor effectively captures the color information of the hair, providing a basis for subsequent color recognition.

[0032] In one embodiment of this application, a set of miniature silent electric scissors 5 is embedded and fixedly installed at the bottom opening of each working groove 3. These scissors serve as the actuating mechanism. The cutting surfaces of their stationary blade (fixed blade) and moving blade (movable blade) must be precisely flush with the bottom opening surface of the working groove 3. That is, when the comb is placed on a flat surface, the scissor blade, the groove opening, and the tips of the comb teeth should be on the same horizontal plane. This structure ensures that during close combing, the scissor blade can simultaneously contact the scalp, thereby cutting gray hair from the roots and achieving a clean trim. The driving source for the miniature silent electric scissors 5 can be a miniature DC motor coupled with a worm gear or cam mechanism, converting the motor's rotation into a simple opening and closing motion of the moving blade. Its core design lies in "only having an opening and closing cutting function"; its blade structure itself does not possess, nor does it require, any additional mechanical structures for pushing, flicking, pulling, or clamping hair. This greatly simplifies the mechanical design and improves reliability. In addition, the tips of both the stationary and moving blades of the Miniature Silent Electric Scissors 5 are machined into a blunt, rounded shape, completely eliminating sharp points. This means that even if the blades slide close to the scalp, only the smooth metal or ceramic surface will come into contact with the skin, fundamentally eliminating the risk of scratching the scalp.

[0033] In one embodiment of this application, the AI ​​main control module 6 is a highly integrated circuit board, the core of which is a low-power image processing chip. This module is electrically connected to the signal output terminals (such as MIPICSI interfaces) of all miniature RGB vision sensors 4 via flexible flat cables (FFC) to receive image data; at the same time, it is also electrically connected to the miniature drive motor inside each miniature silent electric scissors 5 via a cable to send control commands to it.

[0034] In one embodiment of this application, the AI ​​main control module 6 contains a gray hair recognition algorithm that implements the core logic of this invention. The purpose of this algorithm is to analyze the image transmitted from the sensor in real time and make a decision on whether to cut or not. As an efficient and reliable implementation, this algorithm can be a threshold judgment algorithm based on a color space. Specifically, the system can convert the acquired RGB image to a color space that is more favorable for separating brightness and color information (such as HSV or YCbCr). The algorithm first identifies continuous regions representing "hair" in the image (through edge detection, connected component analysis, etc.), and then analyzes the pixel color values ​​of these regions. The algorithm presets a threshold range for "black" (for example, in the YCbCr space, a brightness component Y value below a certain threshold can be determined as black) and a threshold range for "white / gray" (a higher brightness component Y value and chromaticity components Cb and Cr values ​​close to neutral). The algorithm's judgment logic is extremely simple and unique: analyze the identified hair region in the image and determine whether there are pixels within it that meet the "black" threshold.

[0035] If any pixel in the image is determined to be "black" hair, regardless of whether white pixels are also present in the same area (i.e., black and white hair mixed), the AI ​​main control module 6 will determine that "black hair exists." In this case, the module will not output any drive commands to the miniature silent electric scissors 5 corresponding to the working groove 3, or it will explicitly output a "remain stationary" logical command. The miniature silent electric scissors 5 thus remains in its default open state, like an open door, allowing all hair (including black and white hair) within the groove to pass through unimpeded and without any contact.

[0036] The AI ​​main control module 6 determines that "only white hair exists in the current groove" only when all pixels of the identified hair area in the image do not meet the "black" threshold, but only the "white / gray" threshold. At this time, the module will immediately generate a pulse-like closing cut command and send it to the corresponding miniature silent electric scissors 5. After receiving the command, the drive motor of the scissors will quickly move, driving the moving blade to complete a rapid "closing-opening" cycle, cutting off the white hair that is currently at its blade edge. After the cut is completed, the scissors will immediately return to the open state, waiting for the next recognition cycle.

[0037] In one embodiment of this application, to ensure continuous operation of the device, a power supply module 7 is integrated inside the comb housing 1. The power supply module 7 is typically a rechargeable lithium polymer battery with a capacity sufficient for at least one complete haircut. The power supply module 7 provides a stable and safe operating voltage to the AI ​​main control module 6, all miniature RGB vision sensors 4, and all miniature silent electric scissors 5 via a power line. An on / off switch 8 is embedded in the grip area of ​​the comb housing 1. This switch is a physical button directly connected in series in the main power supply circuit of the power supply module 7. The user can turn the device on or off by pressing and holding this switch, making operation intuitive. A charging port 9 (such as a USB Type-C port) is provided at the bottom or side of the comb housing 1. The charging port 9 is fixed inside the hole and electrically connected to the charging management circuit of the power supply module 7 for connecting an external power adapter to charge the battery.

[0038] The workflow of this invention: Start-up: The user presses and holds the start / stop switch 8 to power on the entire unit. The AI ​​main control module 6 and all miniature RGB vision sensors 4 complete initialization and enter standby mode. All miniature silent electric scissors 5 are in the default open state.

[0039] Gentle Combing: Users can hold the comb as usual, with the side with the comb teeth 2 and working grooves 3 pressed against the scalp, applying gentle and moderate pressure, and then moving the comb at a steady speed from front to back (or from the roots to the ends).

[0040] Natural hair import and image acquisition: Under the action of combing force, the hair on the scalp is "combed" apart by the comb teeth and, according to its natural position, passively slides into different working grooves 3, either individually or in small bundles. Since the bottom of the groove is close to the scalp, the hair will lie flat at the bottom of the groove. At the same time, the miniature RGB vision sensor 4 directly above each working groove 3 continuously and in real time captures the real-time scene in the groove it "governs" at a certain frequency (e.g., 30 times per second), and transmits a series of continuous color image frames to the AI ​​main control module 6 at high speed via a ribbon cable.

[0041] Parallel and independent image processing and decision-making: The AI ​​main control module 6 allocates independent hardware and software processing resources (which can be understood as independent processing channels) for each sensor and scissors corresponding to each working groove 3. For each new image from the sensor, the corresponding processing thread immediately calls the gray hair recognition algorithm for processing. This process is parallel and independent; the processing between each groove does not wait for or interfere with each other, greatly improving the overall processing efficiency.

[0042] Condition-triggered cut execution: Scenario A (No Cutting): Taking a specific working groove as an example, when the AI ​​main control module 6 analyzes its current frame image and identifies a pixel area in the image that meets the "black" threshold, regardless of whether the area is mixed with white hair, the module determines that "black hair is currently present in this groove." Based on the preset core safety logic—"no cutting if black hair is present"—the module immediately sends a "maintain open" command (or does not send any action command) to the miniature silent electric scissors 5 at the bottom of the groove. The scissors remain stationary, and all hair (black and white hair) in the groove passes through smoothly, with the black hair protected without any physical contact.

[0043] Scenario B (Execution of Cutting): When the AI ​​main control module 6 analyzes the current frame image of the working groove and identifies that the hair area in the image consists entirely of white / gray pixels with no black pixels detected, it determines that "this groove currently contains pure white hair." Based on the preset trimming logic—"only cut pure white"—the module immediately sends a high-level pulse command to the corresponding miniature silent electric scissors 5. Upon receiving the command, the scissors' drive motor instantly moves, driving the moving blade to complete a rapid and powerful closing motion. Because its blade is flush with the scalp, this closing motion precisely cuts off the section of white hair that is currently located at the bottom of the groove and close to the scalp. After the cutting action is completed, the moving blade immediately springs back under the action of the reset mechanism (such as a spring), returning to the open state, ready to process the next frame image. The cut white hair fragments will naturally fall off or remain in the groove, and will be cleaned later by shaking.

[0044] Cyclic Completion: Steps 4 and 5 above are continuously cycled at extremely high speed (milliseconds) during the combing process. The user completes a combing action without their knowledge; the comb has already "scanned, identified, and cut" all pure white hair areas it passes over, while all areas containing black hair are intelligently "ignored" and left untouched. After combing is complete, the user presses the start / stop switch 8 again to turn off the power. The device can be charged periodically via the charging port 9.

[0045] It should be noted that the control method in the embodiments of this application can be automatically controlled by a controller. The control method of the controller can be implemented by simple programming by those skilled in the art, which is common knowledge in the field. Furthermore, this application is mainly used to protect mechanical structures, so the control method and circuit connection will not be explained in detail here.

[0046] Obviously, the above-described embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include these modifications and variations.

Claims

1. A skin-friendly AI intelligent hair-trimming comb, characterized in that, It includes a comb body shell (1), comb teeth assembly (2), working groove (3), miniature RGB vision sensor (4), miniature silent electric scissors (5) and AI main control module (6); The comb tooth group (2) is composed of multiple comb tooth units, which are fixedly installed at the front end of the comb body shell (1). At least one open working groove (3) is formed between two adjacent comb tooth units. The working groove (3) extends along the combing direction, and its bottom opening is designed to directly fit the user's scalp surface during combing. A miniature RGB vision sensor (4) is fixedly installed directly above each of the working grooves (3), with its lens pointing vertically downwards and its field of view covering the single working groove (3) below it, for real-time acquisition of color images of hair entering the working groove (3); The miniature silent electric scissors (5) are fixedly installed at the bottom of each of the working grooves (3). The shearing surfaces of the stationary blade and the moving blade are flush with the bottom opening surface of the working groove (3), that is, they are on the plane that is in contact with the scalp surface. The miniature silent electric scissors (5) only has the function of opening and closing shearing, and does not have any mechanical sorting structure for pushing, flicking, pulling or clamping hair. The AI ​​main control module (6) is fixedly installed in the internal cavity of the comb shell (1), and is electrically connected to the signal output terminals of all the miniature RGB vision sensors (4) via ribbon cables, and is also electrically connected to the drive terminals of all the miniature silent electric scissors (5) via ribbon cables. The AI ​​main control module (6) has a built-in image processing chip and a white hair recognition algorithm. It is configured to receive an image from a miniature RGB vision sensor (4) above any working groove (3). Only when the analysis and identification show that there is no black hair and only white hair in the image, will it output a closing cutting command to the miniature silent electric scissors (5) in the corresponding working groove (3). When black hair is identified in the image, no command is output or a prohibition command is output, and the miniature silent electric scissors (5) remains in an open and stationary state.

2. The skin-friendly AI intelligent gray hair trimming comb according to claim 1, characterized in that, The width of the working groove (3) is designed so that a single hair or a single bundle of hair can naturally and passively slide into the bottom of the groove by relying solely on combing force.

3. The skin-friendly AI intelligent gray hair trimming comb according to claim 1, characterized in that, The front tips of both the stationary and moving blades of the miniature silent electric scissors (5) are blunt and rounded to prevent scratches when sliding against the scalp.

4. The skin-friendly AI intelligent gray hair trimming comb according to claim 1, characterized in that, The built-in white hair recognition algorithm of the AI ​​main control module (6) is based on threshold judgment in color space, and only distinguishes between black pixels and white pixels in the image to determine whether there is black hair in the image.

5. The skin-friendly AI intelligent gray hair trimming comb according to claim 1, characterized in that, The comb shell (1) is an ergonomic shell suitable for one-handed gripping. A power supply module (7) is also fixedly installed inside. The power supply module (7) is a rechargeable lithium battery, which is electrically connected to the power input terminal of the AI ​​main control module (6), the power input terminal of each of the miniature RGB vision sensors (4), and the power input terminal of each of the miniature silent electric scissors (5) to provide working power.

6. The skin-friendly AI intelligent gray hair trimming comb according to claim 5, characterized in that, A start / stop switch (8) is embedded and fixed on the surface of the gripping area of ​​the comb shell (1). The start / stop switch (8) is connected in series to the main power supply circuit of the power supply module (7) to control the power supply of the whole machine. A charging interface (9) mounting hole is provided at the bottom of the comb shell (1). The charging interface (9) is fixedly installed in the hole and electrically connected to the charging end of the power supply module (7).

7. The skin-friendly AI intelligent gray hair trimming comb according to claim 1, characterized in that, The inner walls of the comb body shell (1), the comb teeth group (2) and the working groove (3) are all treated with a smooth surface, so that the cut white hair fragments can fall off naturally under gravity or light shaking.

8. A method for controlling gray hair trimming based on the skin-friendly AI intelligent gray hair trimming comb according to any one of claims 1 to 7, characterized in that, The AI ​​main control module (6) executes the following control logic steps: Step S1: During the user's skin-friendly combing process, when the hair is passively slid into any working groove (3), the micro RGB vision sensor (4) above the groove is commanded to continuously acquire color image frames in the groove in real time; Step S2: Run the gray hair recognition algorithm independently on each received frame of image to determine whether there is a region of black hair in the image; Step S3: If the current frame determines that there is black hair, a keep still command is sent to the miniature silent electric scissors (5) corresponding to the working groove (3). The scissors remain open, allowing all hair to pass through without damage. Step S4: If the current frame judgment result is that only white hair exists, send a closing cut command to the miniature silent electric scissors (5) corresponding to the working groove (3) to drive it to close once to cut all the white hair in the groove close to the scalp, and then immediately reset and open to prepare for the next recognition and cutting cycle.

9. The gray hair trimming and control method according to claim 8, characterized in that, The judgment and cutting are performed independently for each groove. That is, the micro RGB vision sensor (4) above each working groove (3), the corresponding independent judgment thread in the AI ​​main control module (6), and the micro silent electric scissors (5) at the bottom of the groove constitute an independent recognition and cutting closed-loop unit, and the units do not interfere with each other.

10. A skin-friendly AI intelligent hair-trimming comb, comprising a comb-shaped overall appearance, characterized in that, The comb has an open working groove (3) between its teeth that can fit the skin. The working groove integrates a micro RGB vision sensor (4) that takes vertical downward shots and a micro cutting mechanism (5) with the cutting surface flush with the scalp. The working groove (3) has no mechanical structure for actively sorting black and white hair. The built-in AI main control module (6) performs pure visual logic control of "not cutting if black hair is detected in the groove image, and cutting only if pure white hair is detected".

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