Light dose control method, control device and phototherapy lamp

Abstract

The application provides a light dose control method, a control device and a physiotherapy lamp, and relates to the technical field of physiotherapy lamps.The physiotherapy lamp comprises at least one light emitting array, the array is configured with light emitting monomers with different wavelengths and different quantities, and a touch screen is used to generate a control signal of a target light dose.After receiving the control signal, the system starts a light dose calculation process, acquires distribution information of the light emitting monomers, wavelength types, irradiation distances and preset irradiance data corresponding to different wavelengths and distances, and acquires an output percentage, a pulse mode, a power mode and an irradiation time of each wavelength channel.The system calculates a current light dose based on the irradiance data, the output percentage, a pulse coefficient, the irradiation time and a power coefficient, and adjusts irradiation parameters of the light emitting array according to a difference between the calculation result and the target light dose, including adjusting power, a pulse mode, an irradiation time or a switch number of the light emitting monomers, so that the output light dose meets target requirements.

Description

Technical Field

[0001] This application relates to the field of physiotherapy lamp technology, and in particular to a light dose control method, control device, and physiotherapy lamp. Background Technology

[0002] Current phototherapy lamps generally use timed irradiation, meaning they output light through fixed irradiation times or simple high, medium, and low power settings, lacking the ability to manage the actual light dose during irradiation. Existing devices cannot acquire data on irradiance changes at different wavelengths and irradiation distances, nor have they established a unified light dose calculation mechanism. Users cannot know the actual effective light dose received by the skin or tissue under the current irradiation conditions. Furthermore, because the number of light-emitting cells of each wavelength varies in different light-emitting arrays, even with the same output percentage set, different actual irradiances will occur, resulting in inconsistent and uncontrollable light dose output.

[0003] Existing phototherapy lamps lack closed-loop light dose adjustment capabilities. The devices generally cannot adjust the output state of the light-emitting array based on the deviation between the generated light dose and the target light dose. This includes adjusting the drive current, changing the pulse duty cycle, extending the irradiation duration, or controlling the switching or quantity of individual light-emitting cells based on wavelength differences. Therefore, existing phototherapy lamps struggle to precisely control the light dose, resulting in significant deviations in the actual light dose obtained by users under different usage scenarios, irradiation distances, and array structures. This affects the consistency, repeatability, and safety of phototherapy effects.

[0004] In summary, the existing technology does not yet provide a targeted technical solution that can achieve accurate calculation and closed-loop adjustment of optical dose under structures with multiple wavelengths, multiple arrays, and varying numbers of light-emitting cells. Summary of the Invention

[0005] The main objective of this invention is to provide a light dose control method, control device, and physiotherapy lamp, aiming to solve the problem of how to accurately calculate the light dose in a physiotherapy lamp structure with multiple arrays, multiple wavelengths, and varying numbers of light-emitting cells, and to perform closed-loop adjustment of the output parameters of the light-emitting array (including power, pulse, time, number of light-emitting cells, etc.) based on the light dose deviation, so as to ensure that the output light dose meets the target light dose requirement.

[0006] To achieve the above objectives, the present invention provides a light dose control method, characterized in that it is applied to a physiotherapy lamp, the physiotherapy lamp comprising at least one light-emitting array, wherein the light-emitting array is provided with multiple light-emitting units of different wavelengths and varying numbers, the physiotherapy lamp further comprising a touch screen, the touch screen being used to generate a control signal for a target light dose, the method comprising:

[0007] In response to the control signal for the target light dose, the light dose calculation process is activated;

[0008] The distribution of each light-emitting unit in the light-emitting array is obtained, as well as the wavelength information, irradiation distance information, and preset irradiance data corresponding to different wavelengths and irradiation distances for each light-emitting unit are obtained.

[0009] Obtain the output percentage, pulse mode, power mode, and irradiation time for each wavelength channel;

[0010] The light dose under the current irradiation conditions is calculated based on the irradiance data, output percentage, pulse coefficient, irradiation time, and power coefficient of each wavelength channel.

[0011] The illumination parameters of the light-emitting array are controlled based on the difference between the light dose and the target light dose, including at least one of the following:

[0012] Adjust the output power of each wavelength channel; adjust the pulse mode; adjust the irradiation time; perform switch control or quantity adjustment control on the corresponding wavelength light-emitting cells in the light-emitting array; control the irradiation parameters so that the light-emitting array outputs light that meets the target light dose;

[0013] The adjusted irradiation parameters are used to generate the corresponding physiotherapy irradiation process, which is then displayed on the touch screen.

[0014] In one embodiment, obtaining the distribution of each light-emitting unit in the light-emitting array, and obtaining the wavelength information, irradiation distance information, and preset irradiance data corresponding to different wavelengths and irradiation distances for each light-emitting unit includes:

[0015] Obtain the physical location and quantity distribution of each luminescent individual in the corresponding luminescent array;

[0016] Read the wavelength type corresponding to the emitting unit from the pre-stored wavelength identification table;

[0017] The current illumination distance is obtained based on user settings or distance detection sensors;

[0018] Read the irradiance values ​​that match each wavelength and irradiation distance from the pre-stored irradiance correspondence table.

[0019] In one embodiment, obtaining the output percentage, pulse mode, power mode, and irradiation time set for each wavelength channel includes:

[0020] It receives user setting instructions or preset physiotherapy mode call instructions from the touch screen to obtain the output percentage parameters of each wavelength channel, pulse on or off status, power mode identifier, and irradiation time calculated by the set irradiation duration.

[0021] In one embodiment, calculating the light dose under the current irradiation conditions based on irradiance data, output percentage, pulse coefficient, irradiation time, and power coefficient for each wavelength channel includes:

[0022] Based on the irradiance data, output percentage, pulse coefficient of the pulse mode, irradiation time, and power coefficient of the power mode corresponding to each wavelength channel, the light dose is calculated according to the following formula. :

[0023] ;

[0024] in, Irradiance per unit area The output percentage for each wavelength channel, where i is the number of wavelength channels. This represents the duty cycle coefficient corresponding to the pulse state. U represents the irradiation time, and U represents the power coefficient corresponding to the power mode.

[0025] In one embodiment, controlling at least one irradiation parameter of the light-emitting array based on the difference between the light dose and the target light dose includes:

[0026] The driving current or driving duty cycle of each wavelength channel is adjusted according to the difference to change the output power of the corresponding wavelength channel, so that the output light dose approaches the target light dose; and

[0027] The pulse mode of the corresponding wavelength channel is turned on, off, or the duty cycle is adjusted to match the average effective irradiance of the pulse with the target light dose.

[0028] In one embodiment, controlling at least one irradiation parameter of the light-emitting array based on the difference between the light dose and the target light dose further includes:

[0029] The irradiation duration in the physiotherapy process can be extended or shortened to ensure that the cumulative energy meets the target light dose.

[0030] In one embodiment, switching control or quantity adjustment control is performed on the corresponding wavelength light-emitting cells in each light-emitting array, including:

[0031] Switching control is performed on the corresponding wavelength light-emitting cells in the light-emitting array to adjust the effective irradiance of the corresponding wavelength channel by changing the number of light-emitting cells participating in the irradiation.

[0032] Alternatively, different wavelengths of light-emitting cells can be allocated among multiple light-emitting arrays to participate in irradiation, so as to adjust the output irradiance of the target wavelength according to the quantity.

[0033] In one embodiment, the wavelength of the light-emitting monomer includes at least one of 630nm, 660nm, 810nm, 830nm, 850nm, and 1070nm.

[0034] The present invention also provides a control device, the control device comprising: a memory, a processor, and a light dose control program stored in the memory and executable on the processor, the light dose control program being configured to implement the light dose control method.

[0035] The present invention also provides a physiotherapy lamp, comprising:

[0036] At least one light-emitting array;

[0037] A touch screen electrically connected to the light-emitting array;

[0038] A control device, which is electrically connected to the light-emitting array;

[0039] The control device is electrically connected to the touch screen. Attached Figure Description

[0040] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0041] 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.

[0042] Figure 1 This is a schematic flowchart of a light dose control method according to an embodiment of the present invention;

[0043] Figure 2 This is a display effect diagram of the light emission control of a physiotherapy lamp according to another embodiment of the present invention.

[0044] Explanation of icon numbers:

[0045]

[0046] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0047] 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. Well-known modules, units, and their connections, links, communications, or operations are not shown or described in detail. Furthermore, the described features, architectures, or functions can be combined in any way in one or more embodiments. Those skilled in the art should understand that the various embodiments described below are only for illustrative purposes and are not intended to limit the scope of protection of the present invention.

[0048] Current phototherapy lamps generally use fixed irradiation times or simple power levels for phototherapy output, resulting in a rather crude control method. Lacking the ability to acquire and manage light dose in real time during irradiation, the devices cannot determine the actual effective energy generated on the user's skin surface by different wavelengths of light. For the commonly used multi-wavelength LED phototherapy lamps, the irradiance of different wavelengths of light significantly decreases with irradiation distance. However, existing devices have not established a correlation between irradiance at multiple distances and wavelengths, nor have they developed a unified light dose calculation mechanism, making it difficult for users to accurately determine the actual light dose level.

[0049] A more significant problem is that therapeutic lamps typically consist of multiple light-emitting arrays, with varying numbers and arrangements of light-emitting cells of different wavelengths within each array. Under the same user settings, due to differences in array structure, the number of cells of the same wavelength may be higher in one array and lower in another, resulting in significant differences in output irradiance. Most existing devices only adjust the output uniformly based on the user-selected percentage or power level, failing to compensate for or control the differences in the number of cells across different arrays and wavelengths, thus making it difficult to guarantee consistent output across multiple arrays.

[0050] Furthermore, existing physiotherapy lamps lack the ability to automatically adjust based on light dose deviation. The devices cannot proactively adjust the output of each wavelength channel according to the difference between the actual and target light dose, nor can they adjust the pulse mode, extend or shorten the irradiation time, or control the number of individual LEDs of different wavelengths to converge the output energy towards the target dose. Therefore, whether due to variations in usage distance, differences in array structure, or improper user settings, existing physiotherapy lamps struggle to achieve precise control of light dose, and the repeatability, safety, and stability of phototherapy effects cannot be guaranteed.

[0051] Based on the above, it can be seen that the existing technology has not yet provided a technical solution that can solve the problems of accurate optical dose calculation and closed-loop optical dose adjustment under structural conditions such as multiple wavelengths, multiple arrays, and uneven quantity distribution.

[0052] To address the problems of inaccurate light dose measurement, uncontrollable output, and dose deviation caused by multi-array structures in existing technologies, this invention first considered establishing an optical data system that can accurately reflect the irradiance variation of different wavelengths of light at different distances. By pre-calibrating the irradiance of multi-wavelength LEDs and combining it with the number and distribution of each emitting element within the array, the system can obtain the effective irradiance of each wavelength under current illumination conditions based on structural characteristics. This data system provides the foundation for subsequent light dose calculations, enabling light output under different array and structural conditions to be expressed in a unified manner.

[0053] After obtaining the basic optical parameters, this invention further constructs a method for calculating light dose. By coupling factors such as irradiance, output ratio of each wavelength, duty cycle of the pulse mode, irradiation time, and power mode, the system can accurately calculate the light dose under the current irradiation conditions before or during each irradiation. In this way, regardless of how the structure of the therapy lamp changes or how significant the differences in the quantity within different arrays are, a quantifiable light dose can be obtained through a unified mathematical model.

[0054] After accurately obtaining the light dose, a further aspect of this invention is to use the light dose as the core control mechanism. By comparing the difference between the actual light dose and the target light dose, the device can automatically adjust the light output parameters. When the actual light dose is too low, the system can increase the power of a certain wavelength channel, adjust the duty cycle of the pulse mode, extend the irradiation time, or increase the number of emitting cells participating in the irradiation. Conversely, when the light dose is too high, the system can reduce the power, shorten the irradiation time, or shut down some emitting cells, so that the output energy gradually converges towards the target dose. In this way, automatic dose compensation can be achieved under complex structural conditions, ensuring that the output of different arrays and different wavelengths reaches a consistent and controllable level.

[0055] Reference Figure 1 In one embodiment of the present invention, the light dose control method includes steps S100-S600, wherein:

[0056] S100, in response to the control signal for the target light dose, activates the light dose calculation process;

[0057] S200, obtain the distribution of each light-emitting unit in the light-emitting array, and obtain the wavelength information, irradiation distance information and preset irradiance data corresponding to different wavelengths and irradiation distances for each light-emitting unit;

[0058] S300: Obtain the output percentage, pulse mode, power mode, and irradiation time for each wavelength channel;

[0059] S400 calculates the light dose under the current irradiation conditions based on the irradiance data, output percentage, pulse coefficient, irradiation time, and power coefficient of each wavelength channel.

[0060] S500, based on the difference between the light dose and the target light dose, control the irradiation parameters of the light-emitting array, including at least one of the following:

[0061] Adjust the output power of each wavelength channel; adjust the pulse mode; adjust the irradiation time; perform switch control or quantity adjustment control on the corresponding wavelength light-emitting cells in the light-emitting array; control the irradiation parameters so that the light-emitting array outputs light that meets the target light dose;

[0062] S600 generates a corresponding physiotherapy irradiation process from the adjusted irradiation parameters and displays it on the touch screen.

[0063] Furthermore, the physiotherapy lamp 1 includes a light-emitting array 10 for outputting near-infrared or visible light energy. The light-emitting array 10 is provided with multiple sets of light-emitting cells with different wavelengths and varying numbers. Each light-emitting cell is arranged discretely in the actual array structure.

[0064] It should be noted that the light-emitting unit refers to an independent LED device capable of emitting light at a specific wavelength. The number and position of light-emitting units with different wavelengths in the array may vary, thus affecting the actual irradiance distribution when outputting light. Since different arrays and light-emitting units with different wavelengths are arranged in combination, this embodiment records the number, position, and wavelength of these light-emitting units to serve as the basis for subsequent light dose calculations.

[0065] In this embodiment, the physiotherapy lamp 1 has a touch screen, through which the user can input the target light dose. After receiving the control signal, the control device initiates the light dose calculation process. It should be noted that the control signal refers to the data instruction generated when the user selects the target treatment dose, output mode, or irradiation plan on the touch screen. This instruction guides the control device to start the light dose calculation step.

[0066] Light dose calculation relies on multiple fundamental optical parameters. Therefore, this implementation first obtains the distribution of each emitting element, including its physical position in the array and the number of emitting elements of different wavelengths. It should be noted that the distribution information of the emitting elements refers to their coordinates or arrangement density on the array panel. Different arrangements will affect the superposition effect of different wavelengths of light in a local area. The system also reads the wavelength information corresponding to each emitting element from a pre-stored data table. Different wavelengths of LEDs have different emission characteristics, so the corresponding irradiance data needs to be looked up based on the specific wavelength when calculating irradiance. Irradiation distance information can be set by the user or obtained through a distance sensor. Distance information significantly affects the actual irradiance of each wavelength. The system reads the irradiance value matching the wavelength and irradiation distance from a preset irradiance correspondence table as the input parameter for subsequent light dose calculation.

[0067] After acquiring the basic optical parameters, the system further obtains the output percentage, pulse mode, power mode, and irradiation time for each wavelength channel. It should be noted that the output percentage represents the proportion of different wavelengths in the overall output, the pulse mode indicates the on / off state of the corresponding wavelength channel and the pulse duty cycle, the power mode corresponds to different light source drive power levels, and the irradiation time is usually set by the user in the interface or automatically calculated from a preset treatment mode.

[0068] The control device calculates the light dose based on the above parameters. In one optional embodiment, the light dose can be obtained by a preset formula. The product of the irradiance value Xi corresponding to the luminescent cell and the output percentage Yi reflects the effective irradiance contribution of different wavelengths of light under the current output conditions, while the pulse coefficient Z can be used to correct the influence of the pulse mode on the energy output, the irradiation time T is used for time integration, and the power coefficient U is used to reflect the energy gain relationship under different power modes. Under the combined effect of these parameters, the control device can calculate the light dose under the current irradiation conditions. It should be noted that the light dose refers to the effective light energy transferred to the tissue surface per unit area during irradiation, and is an important parameter that determines the effect of photobiological regulation.

[0069] The calculated light dose serves as the data basis for the actual light energy and is compared with the target light dose set by the user. If there is a difference between the current light dose and the target light dose, the control device adjusts the irradiation parameters of the light-emitting array 10 according to the magnitude of the difference. The control strategy of this embodiment includes at least the following situations: First, the control device can change the output power by adjusting the drive current or drive duty cycle of the corresponding wavelength channel, thereby increasing or decreasing the irradiance of the corresponding wavelength. Second, the control device can adjust the average effective output of the pulse light by changing the on state or duty cycle of the pulse mode. Third, the control device can gradually bring the accumulated light energy closer to the target light dose by extending or shortening the irradiation time. Fourth, the control device can control the switching or quantity of the light-emitting cells of the corresponding wavelength in the light-emitting array 10. When the light dose of a certain wavelength is insufficient, the system can increase the number of light-emitting cells participating in the irradiation; while when the light dose of a certain wavelength is too high, some light-emitting cells can be turned off, so that the actual output converges to the target light dose. It should be noted that the quantity adjustment can be performed not only within a single array, but also by adjusting the same wavelength of light-emitting cells among multiple light-emitting arrays 10, so as to balance the output differences of different arrays.

[0070] After completing the above adjustments, the system generates a new combination of irradiation parameters. This combination expresses information such as the wavelength combination, number of light-emitting cells, output power, pulse mode, and irradiation time required for this irradiation. The control device displays this series of parameters as a physiotherapy irradiation process on the touchscreen, allowing the user to understand the treatment plan that the device is about to execute or is currently executing. It should be noted that the physiotherapy irradiation process refers to the set of output control steps automatically generated by the device to achieve the target light dose. Through this process, the user can intuitively grasp the device's treatment strategy.

[0071] Optionally, after starting the optical dose calculation process, the distribution of each emitting cell in the emitting array 10 will be obtained first. It should be noted that the distribution refers to the actual physical position of each emitting cell in the array and the number density of emitting cells at different wavelengths. Since different emitting arrays 10 may adopt different arrangement designs, by recording the physical arrangement of the emitting cells, the optical energy superposition in the local area can be accurately reflected in the subsequent optical dose calculation.

[0072] In this embodiment, the system obtains the wavelength information corresponding to each emitting cell by pre-writing a wavelength identification table in memory. The wavelength identification table records the light source type to which each emitting cell belongs, such as 630nm, 660nm, 810nm, 830nm, 850nm, or 1070nm. It should be noted that the wavelength identification table is used to establish a mapping relationship between emitting cells and their corresponding spectral characteristics. The system can quickly identify the wavelength type corresponding to each emitting cell based on this table, thereby providing a basis for subsequent irradiance lookup.

[0073] In this embodiment, the irradiation distance information can be set directly by the user on the touchscreen or detected in real time by a distance detection sensor. Since different irradiation distances significantly affect the actual irradiance of different wavelengths of light on the skin surface, the system needs to accurately obtain the current irradiation distance and use it as the input parameter for irradiance query. The system pairs the irradiation distance with the wavelength type and reads the matching irradiance data from a preset irradiance correspondence table.

[0074] In a specific example, the irradiance correspondence can be found in Table 1. Table 1 lists the reference irradiance for six different wavelengths at two different irradiation distances, including X1 representing 630nm, X2 representing 660nm, X3 representing 810nm, X4 representing 830nm, X5 representing 850nm, and X6 representing 1070nm. Taking the 630nm wavelength as an example, its irradiance is approximately 24mW / cm² at an irradiation distance of 6 inches, while it decreases to approximately 16mW / cm² when the irradiation distance increases to 12 inches. Similarly, the irradiance of different wavelengths shows a decreasing trend with increasing distance, especially for the 850nm wavelength, where the irradiance decreases more significantly, reaching approximately 102mW / cm² at a distance of 6 inches, and decreasing to approximately 68mW / cm² at a distance of 12 inches.

[0075] It should be noted that Table 1 is only an optional reference data source, and the contents of the irradiance correspondence table are not limited to the numerical ranges shown in the table. In practical applications, the irradiance correspondence table can be established through experimental measurement, optical simulation, or equipment calibration, recording the energy output of different wavelengths at different irradiation distances, so that the control device can obtain the effective irradiance under the current irradiation conditions by looking up the table.

[0076] Table 1 Mapping Table of Irradiance and Spectral Characteristics

[0077]

[0078] Optionally, after acquiring the luminescent monomer distribution information and irradiance data, the control device will further acquire the output parameters set by the user for each wavelength channel to form complete input conditions in the subsequent light dose calculation process. The touch screen of the therapy lamp 1 serves as the main interactive interface, sending user-set irradiation commands or preset therapy mode call commands to the control device. It should be noted that user-set commands refer to the input information formed by the user directly selecting or dragging parameters in the interface, while preset therapy mode call commands refer to the set of mode parameters automatically output by the system when the user selects an automated treatment mode for a specific purpose (such as anti-inflammatory, skin repair, or analgesia).

[0079] Upon receiving the aforementioned command, the control device will parse the output percentage parameters for each wavelength channel from the command. The output percentage characterizes the energy distribution ratio of different wavelength channels in the overall output. For example, a user can set the 630nm wavelength channel to output 20%, the 660nm wavelength channel to output 30%, and the remainder to be distributed by the near-infrared band. It should be noted that the output percentage is not the actual energy value, but rather a weighting parameter defined by the system based on user or mode requirements. This parameter will be combined with the irradiance value corresponding to each wavelength to reflect the relative contribution of each wavelength to the total optical dose.

[0080] The control device also parses the pulse mode contained in the command, including the on / off state of the pulse mode and the setting of the pulse duty cycle. The pulse mode is used to adjust the timing structure of the light output. When the pulse mode is on, the system periodically controls a light source of a certain wavelength to emit light in pulses, and the duty cycle determines the proportion of the light source in the on state within the pulse cycle. In this embodiment, the duty cycle can be automatically determined according to user settings or preset modes. When the user does not make a specific setting, the system can use the default duty cycle. For example, the pulse mode of a certain wavelength channel can use a 50% duty cycle, that is, the on and off time of the light source is equal in one cycle.

[0081] In addition to the parameters mentioned above, this embodiment also acquires power mode information. It should be noted that the power mode is a unified identifier for the drive intensity of each wavelength channel. For example, the system can provide three modes: high power, medium power, and low power, each corresponding to a different drive current range. The control device extracts the power mode identifier from the user-selected or preset mode and converts it into the corresponding power coefficient in subsequent optical dose calculations to correct for output differences under different modes.

[0082] Irradiation time is also an important parameter affecting light dose. In this embodiment, the system obtains the irradiation duration from the user-set or preset mode. The irradiation time can be in minutes or seconds. When the user selects the irradiation duration on the touch screen, the control device converts the time parameter into a unit format consistent with the calculation formula, such as converting minutes to seconds, so that it can be directly used in the light dose calculation process. If the user selects a preset physiotherapy mode, the irradiation time can be set by the mode itself. For example, the beauty mode may be automatically set to 10 minutes, while the deep physiotherapy mode may be set to 15 minutes.

[0083] By acquiring the aforementioned information, the control device can comprehensively collect the output requirements of the user or preset modes for different wavelength channels, enabling the output percentage, pulse mode, power mode, and irradiation time to form a set of input parameters for phototherapy dose calculation. With the coordination of these input parameters, the system can perform subsequent phototherapy dose calculations and closed-loop control, making the entire phototherapy process more targeted and controllable.

[0084] Table 2 Control parameters for each physiotherapy process in intelligent mode

[0085]

[0086] Furthermore, referring to Table 2, the control device of the therapeutic lamp 1 can automatically generate the output percentage, pulse mode, and irradiation time of each wavelength channel based on a preset intelligent mode, allowing users to obtain a lighting scheme matching a specific purpose without having to set parameters one by one. It should be noted that the intelligent mode refers to a combination of parameters pre-stored within the control device, used to address different photobiological regulatory needs, such as anti-inflammatory, skin repair, tissue regeneration, sleep regulation, or lighting modes suitable for pets. Different intelligent modes differ in wavelength selection, energy ratio, pulse configuration, and total irradiation time. This embodiment simplifies user operation and improves the accuracy and consistency of phototherapy by invoking intelligent modes.

[0087] In this embodiment, the intelligent mode can be directly invoked by the user via the touchscreen. When the user selects a specific intelligent mode, the control device automatically reads the corresponding wavelength percentage parameters, pulse settings, and irradiation time from its internal memory. For example, in the intelligent mode for tissue anti-inflammatory purposes, the system ensures that multiple primary wavelength channels participate in irradiation with equal or similar weights. Wavelengths such as 630nm, 810nm, 830nm, 850nm, and 1070nm all participate in light irradiation with a 100% output ratio, thereby enhancing the anti-inflammatory and deep tissue regulation effects. In this mode, the pulse mode is typically kept off, and an irradiation time of approximately 20 minutes is set to achieve a higher energy accumulation effect.

[0088] In the intelligent mode for skin repair, the system automatically reduces the output ratio of some channels, such as the 630nm, 810nm, or 850nm channels, which are set to around 50% to provide gentler, superficial skin conditioning energy. This mode also maintains continuous light output, and the irradiation time can be set to approximately 10 minutes to suit the energy intensity required for skin beauty applications.

[0089] In the intelligent mode targeting muscle relaxation and post-exercise recovery, the system increases the energy output of multiple deep-penetrating wavelength channels. For example, 630nm, 660nm, 830nm, 850nm, and near-infrared channels may participate in irradiation at a higher proportion, thereby enhancing energy deposition in deep tissues. The irradiation time is generally about 10 minutes, with pulsed mode maintaining continuous output to quickly provide effective energy.

[0090] In the collagen activation mode, the output ratio of some wavelength channels is set to about 60%, including wavelengths such as 630nm, 660nm, 810nm and 850nm, while other wavelength channels are not activated, in order to focus on providing effective wavelengths related to collagen stimulation.

[0091] In the intelligent mode for sleep regulation, the system uses an output ratio that decreases over time. For example, it sets the output ratio to about 20% at the start of irradiation and gradually reduces it to near 0% as irradiation progresses, producing a gentle relaxation effect through a longer irradiation time of about 30 minutes. Similarly, in the sunrise simulation mode, the system gradually increases the output ratio, raising the light intensity from near 0% to about 50% to simulate the transition of natural light and help establish circadian rhythms.

[0092] In the wound healing mode, multiple wavelengths, including 630nm, 810nm, 830nm, and 850nm, are used, participating in irradiation at approximately 60% of the output, providing a combined spectrum for wound healing. In the neuromodulation mode, the output ratio of multiple wavelengths is set to approximately 80% to promote phototherapy effects related to deep tissues and the nervous system. The mode for bones and joints utilizes all six main wavelengths at 100% output to enhance energy transfer to deep tissues and achieve higher energy accumulation. The mode for pets maintains a lower output ratio, such as approximately 30%, to avoid stimulating the animal with strong light while still providing adequate photobiological modulatory energy.

[0093] In the aforementioned intelligent mode, for positions in the table where no percentage is specified, the default output of that channel is 0%, meaning that wavelength does not participate in illumination. The pulse mode in intelligent mode uniformly adopts continuous light mode, i.e., the pulse frequency is set to 0Hz to maintain stable and consistent light output. The illumination time is preset by the mode, such as 10 minutes, 20 minutes, or 30 minutes, and users can also make personalized adjustments after selecting the mode.

[0094] Optionally, in this embodiment, after acquiring the distribution information, wavelength information, irradiation distance information, output percentage, pulse mode, power mode, and irradiation time of the luminescent monomers, the control device performs a photodose calculation. It should be noted that the photodose refers to the effective energy delivered to the target tissue surface within a unit area over a given time. This energy plays a decisive role in photobiological regulation and therefore needs to be quantifiable and calculable.

[0095] The control device calculates the light dose under the current irradiation conditions based on the irradiance data, output percentage, pulse coefficient, irradiation time, and power coefficient corresponding to each wavelength channel. In an optional implementation, the control device uses a preset light dose calculation formula to integrate the contributions of different wavelengths under different operating modes. The irradiance data Xi comes from a pre-stored irradiance correspondence table in the system, which reflects the irradiance per unit area at a specific irradiation distance for different wavelengths. It should be noted that irradiance is used to represent the energy density output by the light source per unit area and is a fundamental parameter for calculating light dose.

[0096] In this embodiment, the output percentage Yi represents the weight of each wavelength channel in the overall output. By combining it with irradiance, it reflects the actual contribution of different wavelengths to the overall energy. The pulse coefficient Z represents the effective on-state ratio of the light source in one cycle under pulse mode. For example, when the pulse mode is set to a 50% duty cycle, the pulse coefficient is 0.5. This parameter reflects the impact of the pulse mode on the average energy output. The illumination time T describes the duration of illumination. By multiplying the instantaneous energy density by the illumination time, the energy accumulation effect can be obtained. It should be noted that the illumination time can be set by the user or automatically provided by a preset mode. The power coefficient U reflects the gain relationship of different power levels on energy output in the power mode. For example, the energy output in high power mode will have a corresponding increase compared to the basic mode, and this increase is expressed by the power coefficient.

[0097] The control device calculates the light dose based on the above parameters using the following formula. :

[0098] ;

[0099] in, This represents the irradiance per unit area at the current illumination distance for the corresponding wavelength, expressed in mW / cm². It should be noted that the light source for the wavelength channel includes multiple LEDs or arrays, and their irradiance contributions to the target illumination surface can be equivalently superimposed and reflected in... middle;

[0100] This represents the output percentage of each wavelength channel, and is a dimensionless parameter.

[0101] i represents the number of wavelength channels;

[0102] is the duty cycle coefficient corresponding to the pulse mode, which is a dimensionless parameter;

[0103] The irradiation time is in seconds.

[0104] U is the power coefficient corresponding to the power mode, which is a dimensionless parameter;

[0105] The cumulative light dose is expressed in J / cm².

[0106] It should be noted that Σ in the formula represents the summation of all wavelength channels involved in the irradiation, reflecting the actual output effect of the multi-wavelength superposition energy. The division by 1000 is used for unit conversion to ensure consistency in the dimensions of different parameters, allowing the final result to be directly used for irradiation control.

[0107] In practical applications, the system calculates the product of Xi and Yi for each wavelength channel, and corrects for the energy changes introduced by the pulse mode using the corresponding pulse coefficient Z. Then, the correction results for all wavelengths are summed to obtain the effective irradiance per unit time. Subsequently, the system integrates the energy based on the irradiation time T and uses a power coefficient U to weight the output differences at different power levels, thereby obtaining the light dose value Q under the current irradiation conditions. Through this calculation method, the control device can accurately quantify the actual light energy under complex multi-wavelength, multi-array structure, and multi-output mode conditions, providing a reliable data foundation for subsequent closed-loop control.

[0108] Optionally, after the control device obtains the current light dose based on the aforementioned formula, it will compare this light dose with the target light dose set by the user via the touchscreen. It should be noted that the target light dose is the energy value desired by the user based on the treatment scenario, skin type, or preset treatment mode; it serves as a reference point in the closed-loop adjustment process of the light dose. If the system detects a deviation between the current light dose and the target light dose, it will automatically initiate the adjustment process of the irradiation parameters to gradually bring the output light dose closer to the target value.

[0109] In this embodiment, the control device can change the output power of the corresponding wavelength channel by adjusting the drive current or drive duty cycle of each wavelength channel. It should be noted that the drive current is a crucial parameter for controlling the brightness and energy output of the LED light source. When the drive current increases, the irradiance of the corresponding wavelength will increase accordingly; conversely, decreasing the drive current will reduce the energy output. The drive duty cycle is used to control the average effective brightness of the LED within a specific period. In some implementations, PWM (Pulse Width Modulation) is used to control the output intensity, thereby changing the effective irradiance of the light source. When the system detects that the actual light dose is lower than the target value, it will gradually increase the drive current or increase the duty cycle to allow the corresponding wavelength channel to output more energy; when the actual light dose is higher than the target value, it will decrease the drive current or duty cycle to reduce the output power of the corresponding wavelength channel, thus achieving a return to the target dose.

[0110] In this embodiment, the control device can also change the effective irradiance by controlling the pulse mode. If a wavelength channel is in continuous light mode but the actual output energy exceeds the target value, the system can put that wavelength channel into pulse mode, reducing the average effective energy through periodic switching, thereby bringing the light dose back to the target range. Conversely, when the energy of a wavelength channel is insufficient, the pulse mode can be turned off, allowing the channel to output in continuous light mode to increase the effective energy output per unit time. Furthermore, when the pulse mode is on, the system can also perform more precise energy control by adjusting the duty cycle, for example, adjusting the duty cycle from 30% to 50% or 70%, to finely adjust the pulsed average effective irradiance so that the output of that wavelength channel matches the target dose.

[0111] In another optional implementation, the control device can further compensate for the difference in optical dose by adjusting the irradiation duration in the irradiation process. It should be noted that the irradiation duration is a key variable determining the cumulative optical dose. When the irradiation time is extended, even if the instantaneous power remains constant, the cumulative optical energy of the system will increase; conversely, shortening the irradiation time will reduce the cumulative optical dose. When the control device detects in real-time monitoring or calculation prediction that the cumulative optical dose for a certain wavelength combination is insufficient to reach the target optical dose, it will automatically extend the irradiation process so that the final cumulative optical energy reaches the target value. When the system detects that the cumulative optical dose for a certain wavelength combination exceeds the target value, it can appropriately shorten the irradiation time or terminate the irradiation process early to keep the output optical dose within the allowable range.

[0112] During the irradiation process, the control device can comprehensively utilize three methods: drive current adjustment, pulse mode adjustment, and irradiation time adjustment. It dynamically optimizes the combination of control strategies by calculating the difference between the current dose and the target dose in real time. In actual operation, when the system detects a large instantaneous energy deviation, it can prioritize adjusting the drive current for rapid adjustment. When the system only requires minor compensation or energy reduction, more precise energy control can be achieved through duty cycle adjustment. And when the system is in the later stages of phototherapy and about to complete the irradiation task, the final dose convergence can be achieved by extending or shortening the irradiation time.

[0113] Optionally, refer to Figure 2 The physiotherapy lamp 1 includes at least one light-emitting array 10. In this embodiment, the physiotherapy lamp 1 has three light-emitting arrays 10. A large number of light-emitting cells are distributed within each light-emitting array 10. Each light-emitting cell corresponds to a specific wavelength LED light source and can be independently turned on or off. In the accompanying drawings, reference numeral 101 indicates a light-emitting cell in a non-emitting state, while reference numeral 102 indicates a light-emitting cell in an emitting state. It should be noted that the number and spatial distribution of light-emitting cells in the array directly affect the final effective irradiance output. Therefore, this embodiment achieves precise control of the light dose by controlling the switching or adjusting the number of light-emitting cells.

[0114] In this embodiment, when there is a deviation between the current light dose calculated by the control device and the target light dose, corresponding quantity adjustment actions are performed for different wavelength channels. For example, when the light dose of a certain wavelength is insufficient, the control device selects more light-emitting cells of that wavelength from the light-emitting array 10, turning the light-emitting cells 101 that were originally in a non-emitting state into light-emitting cells 102 that are in an emitting state, thereby increasing the number of cells participating in irradiation and improving the effective irradiance of the corresponding wavelength. If the output energy of a certain wavelength is greater than the target value, the control device will turn off some of the light-emitting cells 102 that were originally in an emitting state, turning them into light-emitting cells 101 that are in a non-emitting state, thereby reducing the overall output energy and causing the irradiance of that wavelength channel to fall back to the target range.

[0115] It should be noted that the aforementioned switching control can be performed not only within a single light-emitting array 10, but also dynamically allocated among multiple light-emitting arrays 10. In this embodiment, when the number of light-emitting cells of a certain wavelength in a certain array is insufficient to meet the compensation requirements, the control device can call upon additional light-emitting cells from adjacent arrays. For example, when the number of light-emitting cells capable of outputting an 810nm wavelength in the upper array is limited, the control device can activate light-emitting cells of the same wavelength in the middle or lower arrays, causing them to enter the emitting state, as illustrated by reference numeral 102 in the accompanying drawings, thereby achieving cross-array quantity compensation.

[0116] During cross-array allocation, the control device can determine the most suitable combination of individual units to participate in the illumination based on the user's current illumination distance and the spatial relationship between the arrays. For example, if the user is located near the upper array, the system will prioritize activating the light-emitting units in the upper array; if the user is in the central area or the illumination coverage area is large, the system will comprehensively activate the light-emitting units in multiple arrays to make the overall energy distribution more uniform and concentrated.

[0117] The above-described implementation allows the control device to flexibly turn on or off different light-emitting cells based on the light dose deviation. This enables a non-emitting cell 101 to become an emitting cell 102 when increased energy is needed, and conversely, to turn off some light-emitting cells when reduced energy is required, ensuring that the output light dose remains consistent with the user-set target light dose. This control method, based on the number of light-emitting cells, allows the system to quickly achieve energy compensation without significantly altering the drive power, thereby further improving the stability and response speed of light dose control.

[0118] By controlling the switching of different individual units within the light-emitting array 10 and adjusting the number of units across the array, this embodiment can achieve high-precision light dose control under multi-wavelength and multi-array structure conditions, enabling the physiotherapy lamp 1 to maintain controllability and consistency of output energy in various practical application scenarios.

[0119] Optionally, in one embodiment, when the control device of the physiotherapy lamp 1 is executing the intelligent mode, it will synchronously acquire the status of the lamp beads of the current light-emitting array 10, so that the system can know the number, integrity and availability of different wavelength light-emitting units before the light dose is calculated.

[0120] It should be noted that the lamp bead status refers to whether each light-emitting unit is in normal working condition and whether it can emit light according to the set drive current, duty cycle, or power mode, including conditions such as missing lamp beads, damage, or drive abnormalities. When the user calls a certain intelligent mode, the control device will not only read the target output percentage and illumination time of each wavelength channel according to the preset mode, but will also first search and compare the actual hardware status of the light-emitting array 10.

[0121] In this embodiment, the control device compares the number of available light-emitting cells in the light-emitting array 10 with the output ratio required by the intelligent mode. If the mode requires a certain wavelength to participate in irradiation at a higher ratio, but the number of light-emitting cells corresponding to that wavelength in the array is significantly insufficient, for example, due to some damaged or missing LEDs causing the available number of that wavelength to be below the safety threshold, the system will automatically determine whether that wavelength can provide sufficient irradiance when calculating the light dose. If the preset light dose requirement cannot be met, the control device will output a prompt message to the user on the touch screen, such as indicating that the number of LEDs for a certain wavelength is insufficient, a certain LED is damaged, or the current mode cannot fully achieve the set treatment energy.

[0122] Optionally, in certain situations, if the number of LEDs is insufficient but the output capability is not completely lost, this embodiment allows the control device to increase the output power of the remaining LEDs within a limited range to partially compensate for the energy loss caused by the missing LEDs. It should be noted that the system sets a maximum safe power coefficient for each wavelength channel. When the number of LEDs is insufficient, the drive current or pulse duty cycle can be appropriately increased within this safe threshold to enable the remaining LEDs to output higher effective irradiance. For example, when some LEDs at the 850nm wavelength are damaged, the control device can adjust the drive current of the remaining normal LEDs from the standard mode to the high-power mode, or adjust the duty cycle from 50% to 70% or higher to compensate for the lost energy output. However, if the increased output is still insufficient to meet the target light dose, the system will clearly prompt the user on the touchscreen: "The current number of LEDs is insufficient to fully meet the target light dose."

[0123] In this embodiment, when the number of LEDs in a certain wavelength channel is too small to meet the target light dose even at the maximum allowable power, the control device can utilize LEDs of the same wavelength from multiple light-emitting arrays 10, allowing LEDs of the same wavelength from other arrays to participate in the irradiation. At this time, the system selects the most suitable array combination for energy compensation based on the relative positions of each array to the user, for example, prioritizing arrays closer to the irradiation area to ensure the effectiveness and uniformity of energy transfer. If cross-array compensation still cannot meet the light dose requirements, the system will again output a warning message to the user, thereby preventing the user from experiencing unsatisfactory results due to insufficient energy during treatment.

[0124] This implementation also allows for adjustments to the irradiation time to compensate for insufficient light dose. In some cases, extending the overall irradiation time can bring the cumulative light dose to the target value. For example, if the number of deep red or near-infrared LEDs is slightly insufficient but still provides some output, the system can automatically extend the irradiation time with the user's consent to bring the cumulative energy to the preset target. It should be noted that the adjustment of the irradiation time is based on safety parameters and will not exceed the maximum irradiation duration allowed by the system.

[0125] Throughout the intelligent mode operation, the control device continuously monitors whether the output of each wavelength meets the target requirements. If the system still fails to achieve the target light dose after dynamic adjustment, cross-array compensation, or extended irradiation time, the touch screen will display a clear prompt, informing the user that the device's current light output capability is insufficient, so that the user can replace the therapy lamp 1, maintain the light-emitting array 10, or select an irradiation mode with appropriate capability.

[0126] The present invention also proposes a control device, the control device comprising: a memory, a processor, and a light dose control program stored in the memory and executable on the processor, the light dose control program being configured to implement the light dose control method as described above.

[0127] It is worth noting that since the control device of the present invention is based on the above-described optical dose control method, the embodiments of the control device of the present invention include all the technical solutions of all embodiments of the above-described optical dose control method, and the technical effects achieved are exactly the same, so they will not be repeated here.

[0128] The present invention also proposes a physiotherapy lamp, which includes a control device as described in the above embodiments.

[0129] It is worth noting that since the physiotherapy lamp of the present invention is based on the above-mentioned control device, the embodiments of the physiotherapy lamp of the present invention include all the technical solutions of all the embodiments of the above-mentioned control device, and the technical effects achieved are exactly the same, which will not be repeated here.

[0130] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural or procedural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. A method of light dose control, characterized by, The light therapy lamp is applied to a physiotherapy lamp, which includes at least one light-emitting array, wherein the light-emitting array contains multiple light-emitting cells of different wavelengths and varying numbers. The physiotherapy lamp also includes a touch screen, which is used to generate a control signal for a target light dose. The light dose control method includes: In response to the control signal for the target light dose, the light dose calculation process is activated; The distribution of each light-emitting unit in the light-emitting array is obtained, as well as the wavelength information, irradiation distance information, and preset irradiance data corresponding to different wavelengths and irradiation distances for each light-emitting unit are obtained. Obtain the output percentage, pulse mode, power mode, and irradiation time for each wavelength channel; The light dose under the current irradiation conditions is calculated based on the irradiance data, output percentage, pulse coefficient, irradiation time, and power coefficient of each wavelength channel, specifically including: Based on the irradiance data, output percentage, pulse coefficient corresponding to the pulse mode, irradiation time corresponding to each wavelength channel, and power coefficient corresponding to the power mode, the light dose is calculated according to the following formula : ； wherein, is the irradiance per unit area, is the output percentage of each wavelength channel, i is the number of wavelength channels, is the duty cycle coefficient corresponding to the pulse state, is the irradiation time, U is the power coefficient corresponding to the power mode; The illumination parameters of the light-emitting array are controlled based on the difference between the light dose and the target light dose, including at least one of the following: Adjust the output power of each wavelength channel; adjust the pulse mode; adjust the irradiation time; perform switch control or quantity adjustment control on the corresponding wavelength light-emitting cells in the light-emitting array; control the irradiation parameters so that the light-emitting array outputs light that meets the target light dose; The step of performing switch control or quantity adjustment control on the light-emitting cells of the corresponding wavelength in the light-emitting array includes: performing switch control on the light-emitting cells of the corresponding wavelength in the light-emitting array to adjust the effective irradiance of the corresponding wavelength channel by changing the number of light-emitting cells participating in the irradiation; or allocating light-emitting cells of different wavelengths among multiple light-emitting arrays to participate in the irradiation to adjust the output irradiance of the target wavelength according to the quantity. The adjusted irradiation parameters generate a corresponding physiotherapy irradiation process, which is then displayed on the touch screen. The touch screen is also used to display a corresponding prompt signal when the number of light-emitting cells of the corresponding wavelength is insufficient to meet the target light dose.

2. The light dose control method of claim 1, wherein, The process of acquiring the distribution of each emitting element in the light-emitting array, and acquiring the wavelength information, irradiation distance information, and preset irradiance data corresponding to different wavelengths and irradiation distances for each emitting element includes: Obtain the physical location and quantity distribution of each luminescent individual in the corresponding luminescent array; Read the wavelength type corresponding to the emitting unit from the pre-stored wavelength identification table; The current illumination distance is obtained based on user settings or distance detection sensors; Read the irradiance values ​​that match each wavelength and irradiation distance from the pre-stored irradiance correspondence table.

3. The optical dose control method of claim 1, wherein, The acquisition of the output percentage, pulse mode, power mode, and irradiation time set for each wavelength channel includes: It receives user setting instructions or preset physiotherapy mode call instructions from the touch screen to obtain the output percentage parameters of each wavelength channel, pulse on or off status, power mode identifier, and irradiation time calculated by the set irradiation duration.

4. The optical dose control method of claim 1, wherein, The step of controlling the irradiation parameters of the light-emitting array based on the difference between the light dose and the target light dose includes: The driving current or driving duty cycle of each wavelength channel is adjusted according to the difference to change the output power of the corresponding wavelength channel, so that the output light dose approaches the target light dose; and The pulse mode of the corresponding wavelength channel is turned on, off, or the duty cycle is adjusted to match the average effective irradiance of the pulse with the target light dose.

5. The optical dose control method of claim 1, wherein, The step of controlling the irradiation parameters of the light-emitting array based on the difference between the light dose and the target light dose further includes: The irradiation duration in the physiotherapy process can be extended or shortened to ensure that the cumulative energy meets the target light dose.

6. The optical dose control method of claim 1, wherein, The wavelength of the luminescent monomer includes at least one of 630nm, 660nm, 810nm, 830nm, 850nm, and 1070nm.

7. A control device characterized by comprising: The control device includes: a memory, a processor, and a light dose control program stored in the memory and executable on the processor, the light dose control program being configured to implement the light dose control method as described in any one of claims 1 to 6.

8. A physiotherapy lamp characterised in that, include: At least one light-emitting array; A touch screen electrically connected to the light-emitting array; The control device as described in claim 7, wherein the control device is electrically connected to the light-emitting array; The control device is electrically connected to the touch screen.

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