Control system, method, apparatus, and storage medium for a multi-band light source

Abstract

The present disclosure relates to a control system, method, device and storage medium of a multi-band light source. The control system comprises a main control module, a multi-path selection switch module and a light source module. The main control module is configured to send a control signal to the multi-path selection switch module. The multi-path selection switch module is configured to receive the control signal, determine a target driving switch circuit from a plurality of driving switch circuits according to the control signal, and drive a target array light source to turn on or off based on the target driving switch circuit. The present disclosure can realize precise control of different types of light emitting devices, and reduce the manufacturing cost and maintenance cost of light therapy equipment.

Description

Technical Field

[0001] This disclosure relates to the field of phototherapy equipment, and in particular to control systems, methods, apparatus, storage media and electronic devices for multi-band light sources. Background Technology

[0002] With the widespread application of phototherapy technology, multi-band light-emitting diode (LED) phototherapy devices, as non-invasive, low-risk, and highly efficient treatment devices, have received increasing attention and application. Multi-band LED phototherapy devices achieve precise treatment for different diseases and symptoms by irradiating the patient's skin or tissue with light of different wavelengths.

[0003] Traditional phototherapy devices require multiple independent light sources to provide light of different wavelengths. Such devices are not only structurally complex but also increase in size and cost. Furthermore, a single power supply cannot provide the correct current and polarity for different types of LED chips, thus failing to achieve the desired luminous effect. Integrating multiple wavelength LED chips into a single LED module can overcome these problems, but practical applications present some technical challenges, and the mixed-connection method also introduces difficulties for control and dimming. Summary of the Invention

[0004] To address at least one of the aforementioned technical problems, this disclosure provides a control system, method, apparatus, storage medium, and electronic device for a multi-band light source.

[0005] According to one aspect of this disclosure, a control system for a multi-band light source is provided, comprising: a main control module, a multiplexer module, and a light source module; the multiplexer module includes multiple drive switch circuits; the light source module includes multiple array light sources; each array light source includes at least one light-emitting device, and when multiple light-emitting devices exist in the array light source, the connection between the light-emitting devices is a common anode connection or a common cathode connection, the multiple drive switch circuits correspond one-to-one with the multiple array light sources, and the multiple drive switch circuits drive the corresponding array light source to turn on / off at different driving times;

[0006] The main control module is used to send control signals to the multiplexer module;

[0007] The multiplexer module is used to receive the control signal, determine the target drive switch circuit from the plurality of drive switch circuits according to the control signal, and drive the target array light source to turn on / off based on the target drive switch circuit.

[0008] In some possible implementations, where the control signal is used to characterize a single-path control mode, the control signal includes first target light source information and first illumination cycle information. The multiplexer module is used to determine the target array light source based on the first target light source information and to control the target array light source based on the first illumination cycle information.

[0009] In some possible implementations, when the control signal is used to characterize a multiplex control mode, the control signal includes second target light source information and second illumination cycle information. The multiplexer module is used to determine at least two target array light sources based on the second target light source information and to sequentially control the at least two target array light sources based on the second illumination cycle information.

[0010] In some possible implementations, the system further includes a light source power supply module, which is electrically connected to the multiplexer module and communicatively connected to the main control module.

[0011] The main control module is also used to generate output power information and dimming signal based on the preset modulation signal and the lighting cycle information of the target array light source to be controlled, and send them to the light source power supply module. The lighting cycle information is used to characterize the single lighting duration of the target array light source.

[0012] The light source power supply module is used to receive the output power information and the dimming signal, control the output power according to the output power information to adjust the power of the target array light source in the light source module, and control the output current according to the dimming signal to adjust the illumination intensity of the target array light source in the light source module.

[0013] In some possible implementations, each drive switch circuit includes a drive unit, an upper switch unit, and a lower switch unit, wherein the drive unit is disposed between the upper switch unit and the lower switch unit;

[0014] The upper switch unit of each drive switch circuit is connected in series between the output positive terminal of the light source power module and the anode of the array light source corresponding to each drive switch circuit.

[0015] The lower switch unit of each driving switch circuit is connected in series between the output negative terminal of the light source power module and the cathode of the array light source corresponding to each driving switch circuit.

[0016] The driving unit is used to drive the upper switch unit and the lower switch unit to close / open based on the control signal sent by the main control module, so as to connect / disconnect the driving switch circuit.

[0017] In some possible implementations, the anode of the light-emitting device of each array of light sources is connected to the positive output of the light source power supply module corresponding to each array of light sources;

[0018] The cathode of the light-emitting device of each array light source is connected to the negative output terminal of the light source power module corresponding to each array light source.

[0019] According to a second aspect of this disclosure, a method for controlling a multi-band light source is provided, applied to the system described above, the method comprising:

[0020] A control signal is sent to the multiplexer module so that the multiplexer module receives the control signal, determines the target drive switch circuit from multiple drive switch circuits according to the control signal, and drives the target array light source to turn on / off based on the target drive switch circuit; the multiplexer module includes multiple drive switch circuits, the light source module includes multiple array light sources, each array light source includes at least one light-emitting device, when there are multiple light-emitting devices in the array light source, the connection method between the light-emitting devices is common anode connection or common cathode connection, the multiple drive switch circuits correspond one-to-one with the multiple array light sources, and the multiple drive switch circuits drive the corresponding array light source to turn on / off at different driving times.

[0021] In some possible implementations, when the control signal is used to characterize a single-channel control mode, the control signal includes first target light source information and first illumination cycle information. Sending the control signal to the multiplexer module includes: sending the first target light source information and the first illumination cycle information to the multiplexer module, so that the multiplexer module determines the target array light source based on the first target light source information and controls the target array light source based on the first illumination cycle information.

[0022] In some possible implementations, when the control signal is used to characterize a multiplex control mode, the control signal includes second target light source information and second illumination cycle information. Sending the control signal to the multiplexer module includes sending the second target light source information and the second illumination cycle information to the multiplexer module, so that the multiplexer module determines at least two target array light sources based on the second target light source information and sequentially controls the at least two target array light sources based on the second illumination cycle information.

[0023] In some possible implementations, the method further includes:

[0024] The output power information and dimming signal generated based on the preset modulation signal and the lighting cycle information of the target array light source to be controlled are sent to the light source power supply module. The light source power supply module receives the output power information and the dimming signal, controls the output power according to the output power information to adjust the power of the target array light source in the light source module, and controls the output current according to the dimming signal to adjust the illumination intensity of the target array light source in the light source module. The lighting cycle information is used to characterize the single lighting duration of the target array light source.

[0025] According to a third aspect of this disclosure, a control device for a multi-band light source is provided, applied to the system described above, the device comprising:

[0026] A control signal transmitting module is used to send control signals to a multiplexer module, so that the multiplexer module receives the control signals, determines a target drive switch circuit from multiple drive switch circuits based on the control signals, and drives the target array light source to turn on / off based on the target drive switch circuit. The multiplexer module includes multiple drive switch circuits, and the light source module includes multiple array light sources. Each array light source includes at least one light-emitting device. When there are multiple light-emitting devices in the array light source, the connection method between the light-emitting devices is a common anode connection or a common cathode connection. The multiple drive switch circuits correspond one-to-one with the multiple array light sources, and the multiple drive switch circuits drive the corresponding array light source to turn on / off at different driving times.

[0027] According to a fourth aspect of this disclosure, an electronic device is provided, including at least one processor and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the at least one processor implements a multi-band light source control method as described in any one of the first aspects by executing the instructions stored in the memory.

[0028] According to a fourth aspect of this disclosure, a computer-readable storage medium is provided, wherein at least one instruction or at least one program is stored therein, the at least one instruction or at least one program being loaded and executed by a processor to implement the control method for a multi-band light source as described in any of the first aspects.

[0029] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure.

[0030] Implementing this disclosure will have the following beneficial effects:

[0031] The system includes a main control module, a multiplexer module, and a light source module. The multiplexer module includes multiple drive switch circuits. The light source module includes multiple array light sources. Each array light source includes at least one light-emitting device. When multiple light-emitting devices exist in an array light source, the connection between the light-emitting devices is either a common anode connection or a common cathode connection. Each drive switch circuit corresponds one-to-one with a different array light source, and each drive switch circuit drives the corresponding array light source to turn on / off at different driving times. The main control module sends control signals to the multiplexer module. The multiplexer module receives the control signals, determines the target drive switch circuit from the multiple drive switch circuits based on the control signals, and drives the target array light source to turn on / off based on the target drive switch circuit. Multiple wavelength, common cathode / common anode hybrid LED chips can be integrated into a single light source module. Through specific electrical connection methods and control methods, independent control and precise dimming of multiple LED channels are achieved, improving the therapeutic effect and flexibility of the phototherapy device, achieving more precise phototherapy effects, and reducing the manufacturing and maintenance costs of the equipment.

[0032] Other features and aspects of this disclosure will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0033] To more clearly illustrate the technical solutions of this application, the accompanying drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0034] Figure 1 A schematic diagram of the structure of a control system for a multi-band light source according to an embodiment of the present disclosure is shown;

[0035] Figure 2 A schematic diagram of the structure of three array light sources according to an embodiment of the present disclosure is shown;

[0036] Figure 3 A schematic diagram of the structure of a multiplexer switch module according to an embodiment of the present disclosure is shown;

[0037] Figure 4 A schematic diagram of the structure of a control system for a multi-band light source with three array light sources according to an embodiment of the present disclosure is shown.

[0038] Figure 5 A timing diagram showing the illumination of the array light source in a multi-channel control mode according to an embodiment of the present disclosure is provided.

[0039] Figure 6 A block diagram of an electronic device according to an embodiment of the present disclosure is shown.

[0040] Figure Labels

[0041] 1. Main control module; 2. Multiplexer module; 3. Light source module; 4. Light source power supply module; 5. Voltage regulator module; 21. Drive unit; 22. Upper switch unit; 23. Lower switch unit; Detailed Implementation

[0042] The technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this specification, and not all embodiments. Based on the embodiments in this specification, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0043] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or server that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or devices.

[0044] Various exemplary embodiments, features, and aspects of this disclosure will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0045] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0046] In this document, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. Furthermore, the term "at least one" in this document means any combination of at least two of any one or more elements. For example, including at least one of A, B, and C can mean including any one or more elements selected from the set consisting of A, B, and C.

[0047] Furthermore, to better illustrate this disclosure, numerous specific details are set forth in the following detailed description. Those skilled in the art will understand that this disclosure can be practiced without certain specific details. In some instances, methods, means, components, and circuits well known to those skilled in the art have not been described in detail in order to highlight the main points of this disclosure.

[0048] LED chips are divided into positive polarity chips and reverse polarity chips. A positive polarity chip refers to an LED chip structure where the anode is connected to the top of the chip and the cathode is connected to the bottom. A reverse polarity chip has the anode connected to the bottom and the cathode connected to the top. When positive and reverse polarity chips are mounted on the same LED module (light source module) using a metal substrate, a common cathode and common anode configuration occurs. Common cathode and common anode connections are electrical connection methods for LED chips in an LED module. In a common cathode connection, the cathodes of the LED chips are connected together to form a common cathode pin, while the anode of each LED chip is individually connected to the power supply. In a common anode connection, the anodes of the LED chips are connected together to form a common anode pin, while the cathode of each LED chip is individually connected to the power supply.

[0049] Currently, the drive control scheme for multi-channel LED array modules typically employs a multi-channel LED power supply configuration, requiring the number of LED power supplies to match the number of LED arrays. However, this control scheme has a significant drawback: the cost of LED power supplies increases dramatically with the number of LED arrays, making it unsuitable for cost-sensitive applications.

[0050] Secondly, the method of controlling the on / off state of multiple light source branches using a switch-gate array circuit is only applicable when the LED array is connected in a common cathode or common anode configuration. It cannot meet the requirement of LED arrays simultaneously having both common cathode and common anode connections, cannot effectively isolate the anode and cathode of the two polarity chips, and a single power supply cannot provide the correct current and polarity for different types of LED chips, thus failing to achieve the desired light emission effect. In view of this, embodiments of this disclosure provide a control system, method, apparatus, storage medium, and electronic device for a multi-band light source, solving the problem that the prior art cannot control the light source module of a light-emitting device that simultaneously contains positive and negative polarity chips.

[0051] Figure 1 This diagram illustrates the structure of a control system for a multi-band light source according to an embodiment of the present disclosure, as shown below. Figure 1As shown, the above system includes: a main control module 1, a multiplexer module 2, and a light source module 3; the multiplexer module 2 includes multiple drive switch circuits; the light source module 3 includes multiple array light sources; each array light source includes at least one light-emitting device. When there are multiple light-emitting devices in the array light source, the connection between the light-emitting devices is a common anode connection or a common cathode connection. The multiple drive switch circuits correspond one-to-one with the multiple array light sources, and the multiple drive switch circuits drive the corresponding array light source to turn on / off at different drive times.

[0052] The main control module 1 is used to send control signals to the multiplexer module 2;

[0053] The multiplexer module 2 is used to receive control signals, determine the target drive switch circuit from multiple drive switch circuits according to the control signals, and drive the target array light source to turn on / off based on the target drive switch circuit.

[0054] Specifically, the main control module 1 and the multiplexer module 2 are communicatively connected, and the multiplexer module 2 and the light source module 3 are electrically connected. The multiplexer module 2 includes multiple drive switch circuits, and the light source module 3 includes multiple array light sources. Each drive switch circuit in the multiplexer module 2 controls the corresponding array light source in the light source module 3. Each drive switch circuit in the multiplexer module 2 and the corresponding array light source in the light source module 3 form an independent control circuit. When there are multiple light-emitting devices in the array light source, the connection method between the light-emitting devices can be a common cathode connection or a common anode connection. Therefore, the multiple array light sources in the light source module 3 can be connected only with a common cathode, only with a common anode, or a combination of both common cathode and common anode connections.

[0055] The main control module 1 is used to send control signals to the multiplexer module 2. After receiving the control signal, the multiplexer module 2 is used to determine the target drive switch circuit and control the switching of the target drive switch circuit to drive the target array light source corresponding to the target drive switch circuit in the light source module 3, and control the opening / closing of the target array light source.

[0056] In some embodiments, the light-emitting device may be an LED chip. For example... Figure 2As shown, the light source module 3 can include three array light sources. The first array light source is a yellow channel consisting of multiple 590nm wavelength LED chips, outputting using a reverse polarity chip configuration of 12 series followed by 3 parallel. The second array light source is a blue channel with a wavelength of 450nm, outputting using a reverse polarity chip configuration of 12 series followed by 2 parallel. The third array light source is a red channel with a mixture of wavelengths of 650nm, 810nm, and 940nm, outputting using a positive polarity chip configuration of 12 series followed by 11 parallel. The yellow and blue channels are driven using a common cathode method, while the red channel is driven using a common anode method. The multiplexer module 2 includes three drive switch circuits, each controlling a corresponding array light source.

[0057] In other embodiments, the number of array light sources in the light source module 3 may also be 4 or other numbers, and the wavelength of the light-emitting device in each array light source may be a single wavelength or a mixture of wavelengths, which is not limited here.

[0058] The above technical solution is applicable to LED modules with a common cathode and common anode configuration, i.e., light source module 3. By integrating multiple wavelength LED chips onto a single LED module and employing specific electrical connection methods and control techniques, independent control and precise dimming of multiple LED channels are achieved. This integrated design not only improves the therapeutic effect and flexibility of the phototherapy device but also reduces manufacturing and maintenance costs, demonstrating broad application prospects and market potential.

[0059] In some embodiments, when the control signal is used to characterize a single-path control mode, the control signal includes first target light source information and first illumination cycle information. The multiplexer module 2 is used to determine the target array light source based on the first target light source information and control the target array light source based on the first illumination cycle information.

[0060] The main control module 1 includes a single-channel control mode and a multi-channel control mode. In the single-channel control mode, only one array of light sources in the light source module 3 needs to be controlled. In the multi-channel control mode, multiple arrays of light sources in the light source module 3 need to be controlled. When the control signal is used to characterize the single-channel control mode, the control signal includes first target light source information and first illumination period information. The first target light source information is used to point to one array of light sources that needs to be controlled in the single-channel control mode, and the first illumination period information is used to characterize the illumination time of the array of light sources that needs to be controlled.

[0061] In some embodiments, the light source module 3 may include three array light sources. When the first array light source is a yellow light channel, the second array light source is a blue light channel, and the third array light source is a red light channel, in the single-channel control mode characterized by the control signal, the first target light source information of the sent control signal points to the yellow light channel, and the first lighting cycle information includes a lighting time of 20 minutes. After receiving the control signal, the multiplexer module 2 determines the drive switch circuit for controlling the yellow light channel through the first target light source information, and controls the yellow light channel to light up through the drive switch circuit of the yellow light channel, with a lighting time of 20 minutes.

[0062] In the single-output control mode described above, only one array light source is lit, which is suitable for single light irradiation needs of a specific wavelength, such as phototherapy or photosensitivity treatment of a specific wavelength.

[0063] In some embodiments, when the control signal is used to characterize a multiplex control mode, the control signal includes second target light source information and second illumination cycle information. The multiplexer module 2 is used to determine at least two target array light sources based on the second target light source information and to sequentially control at least two target array light sources based on the second illumination cycle information.

[0064] The main control module 1 includes a single-channel control mode and a multi-channel control mode. When the control signal is used to characterize the multi-channel control mode, the control signal includes second target light source information and second lighting cycle information. The second target light source information is used to point to the multiple array light sources that need to be controlled in the multi-channel control mode, and the second lighting cycle information includes the lighting cycle and the total lighting duration of each array light source that needs to be controlled.

[0065] In some embodiments, the light source module 3 may include three array light sources. When the first array light source is a yellow light channel, the second array light source is a blue light channel, and the third array light source is a red light channel, in the control signal characterization multi-channel control mode, the second target light source information of the sent control signal points to the first array light source, the second array light source, and the third array light source. The second lighting cycle information includes the lighting cycle of the first array light source being 2ms, the lighting cycle of the second array light source being 3ms, the lighting cycle of the third array light source being 5ms, and the total lighting time of the three array light sources being 20min. After receiving the control signal, the multi-channel selection switch module 2 determines the driving switch circuits controlled by the first, second, and third array light sources respectively through the second target light source information. The first array light source is used to control the yellow light channel to light up for 2ms, the second array light source is used to control the blue light channel to light up for 3ms, and the second array light source is used to control the red light channel to light up for 5ms. The first, second, and third array light sources are controlled in a loop until the total lighting time of the three array light sources reaches 20min.

[0066] The above technical solution can control multiple array light sources in multi-channel control mode to meet the needs of multi-wavelength phototherapy and provide more flexible and diversified phototherapy effect options.

[0067] In some embodiments, the system further includes a light source power supply module 4, which is electrically connected to the multiplexer module 2 and is communicatively connected to the main control module 1.

[0068] The main control module 1 is also used to generate output power information and dimming signal based on the preset modulation signal and the lighting cycle information of the target array light source to be controlled, and send them to the light source power supply module 4.

[0069] The light source power module 4 is used to receive output power information and dimming signal, control the output power according to the output power information to adjust the power of the target array light source in the light source module 3, and control the output current according to the dimming signal to adjust the illumination intensity of the target array light source in the light source module 3. The lighting cycle information is used to characterize the single lighting duration of the target array light source.

[0070] In some embodiments, the light source power supply module 4 provides power to the multiplexer module 2 and the light source module 3. When the main control module 1 sends a control signal to the multiplexer module 2, it simultaneously sends output power information to the light source power supply module 4 to control the output power of the target array light source. In the single-channel control mode, the output power information of the target array light source is determined based on the preset modulation signal of the light source power supply module 4. In the multi-channel output mode, the output power information of each target array light source is determined based on the preset modulation signal of the light source power supply module 4 and the illumination cycle information of each target array light source.

[0071] In some embodiments, if the preset output power of the light source power module 4 is 200W and the preset modulation signal is a 1kHz pulse width modulation (PWM) signal, in the single-channel control mode characterized by the control signal, if the duty cycle of the PVM is 50%, the output power of the target array light source in the output power information is 100W; in the multi-channel control mode characterized by the control signal, if the duty cycle of the PVM is 100%, the target array light source includes a first array light source, a second array light source, and a third array light source, and the first array light source... The single-light-up time of the first array light source is 2ms, the single-light-up time of the second array light source is 3ms, and the single-light-up time of the third array light source is 5ms. At this time, the output power of the first array light source is: 200W*0.002s*100Hz*100%=40W, the output power of the second array light source is: 200W*0.003s*100Hz*100%=60W, and the output power of the third array light source is: 200W*0.005s*100Hz*100%=100W.

[0072] In some embodiments, when the array light source control is switched, the main control module 1 is also used to output a dimming signal to the light source power supply module 4, and the light source power supply module 4 controls the magnitude of the output current based on the dimming signal to adjust the brightness of the target array light source.

[0073] The above technical solution enables time-division multiplexing of the light source power module 4 and fine adjustment of power, providing more flexible and diversified phototherapy effect options.

[0074] Please see Figure 3 In some embodiments, each drive switch circuit includes a drive unit 21, an upper switch unit 22 and a lower switch unit 23, with the drive unit 21 disposed between the upper switch unit 22 and the lower switch unit 23.

[0075] The upper switch unit 22 of each drive switch circuit is connected in series between the output positive terminal of the light source power module 4 and the anode of the array light source corresponding to each drive switch circuit.

[0076] The lower switch unit 23 of each drive switch circuit is connected in series between the output negative terminal of the light source power module 4 and the cathode of the array light source corresponding to each drive switch circuit.

[0077] The drive unit 21 is used to drive the upper switch unit 22 and the lower switch unit 23 to close / open based on the control signal sent by the main control module 1, so as to connect / disconnect the drive switch circuit.

[0078] Specifically, each drive switch circuit in the multiplexer module 2 includes a drive unit 21, an upper switch unit 22, and a lower switch unit 23. The drive unit 21 of each drive switch circuit can be used to shape and amplify the control signal sent by the main control module 1 to drive the upper switch unit 22 and the lower switch unit 23 to close / open. The upper switch unit 22 is connected in series between the positive output terminal of the light source power module 4 and the anode of its corresponding array light source to isolate the electrical connection between the positive terminal of the light source power module 4 and the anode of its corresponding array light source; the lower switch unit 23 is connected in series between the negative output terminal of the light source power module 4 and the cathode of its corresponding array light source to isolate the electrical connection between the negative terminal of the light source power module 4 and the cathode of its corresponding array light source.

[0079] In some embodiments, the main control module 1 outputs a control signal to control the multiplexer module 2, thereby controlling the on and off of the array light source in the light source module 3. When the main control module 1 selects the upper switch unit 22 and the lower switch unit 23 of a set of drive switch circuits, the light source power supply module 4 provides the correct current and polarity to the selected array light source, thereby illuminating the corresponding array light source. When the main control module closes the upper switch unit 22 and the lower switch unit 23 of this set of drive switch circuits, the output current path of the light source power supply module 4 is disconnected, thereby turning off the corresponding array light source.

[0080] In the above technical solution, each driving switch circuit and its corresponding array light source form an isolated circuit, independently controlling each array light source in the light source module 3, thereby achieving precise control of the array light sources in the light source module 3 that simultaneously have common cathode and common anode connections.

[0081] In some embodiments, the anode of the light-emitting device of each array of light sources is connected to the positive output of the light source power supply module 4 corresponding to each array of light sources;

[0082] The cathode of the light-emitting device of each array of light sources is connected to the negative output terminal of the power supply module 4 corresponding to each array of light sources.

[0083] Specifically, the anodes of the light-emitting devices of each array of light sources are connected into a line, which is connected to the positive output of the light source power module 4 through the upper switch unit 22 in the driving switch circuit corresponding to each array of light sources of the multiple selection switch module 2. The cathodes of the light-emitting devices of each array of light sources are connected into a line, which is connected to the output cathode of the light source power module 4 through the lower switch unit 23 in the driving switch circuit corresponding to each array of light sources.

[0084] In some embodiments, the light source module 3 may include three array light sources: a first array light source is a yellow light channel, a second array light source is a blue light channel, and a third array light source is a red light channel. The first and second array light sources are driven using a common cathode method, and the third array light source is driven using a common anode method. The multiplexer module 2 includes a first drive switch circuit for controlling the first array light source, a second drive switch circuit for controlling the second array light source, and a third drive switch circuit for controlling the third array light source. The drive switch circuits are connected in parallel. The positive output of the light source power supply module 4 is connected to a line formed by the anodes of all light-emitting devices in the first array light source through the upper switch unit 22 of the first drive switch circuit. The positive output of the light source power supply module 4 is connected to a common anode pin formed by the anodes of all light-emitting devices in the third array light source through the upper switch unit 22 of the third drive switch circuit. The negative output of the light source power supply module 4 is connected to the common cathode pin formed by the light-emitting devices of the first, second, and third array light sources through the lower switch units 23 of the first, second, and third drive switch circuits connected in parallel.

[0085] Specifically, please refer to Figure 4 The anode of the yellow light channel is connected to terminal CH1, and the cathode is connected to terminal COM; the anode of the blue light channel is connected to terminal CH2, and the cathode is connected to terminal COM; the anode of the red light channel is connected to terminal CH3, and the cathode is connected to terminal COM. When the yellow light channel needs to be lit, switches Q1 and Q2 are turned on, and current flows through the positive terminal of the LED power supply - switch Q1 - anode of the yellow light channel - cathode of the yellow light channel - switch Q2 - negative terminal of the LED power supply. The lighting principle of the blue and red light channels is similar to that of the yellow light channel, and will not be described in detail here.

[0086] The above technical solution enables the array light sources with common cathode and common anode hybrid connection to operate without interfering with each other. Each array light source can be independently lit by a single power supply. Through parallel drive switch circuits, each corresponding array light source is electrically connected to form an independent and isolated control circuit, realizing precise control of the light source module 3 with common cathode drive and common anode drive hybrid, improving control flexibility and saving costs.

[0087] In some embodiments, the control system of the multi-band light source further includes a voltage regulator module 5, which provides stable power to the main control module 1 so that the main control module 1 can work normally.

[0088] According to a second aspect of this disclosure, a method for controlling a multi-band light source is provided, applied to the system described above, the method comprising:

[0089] A control signal is sent to the multiplexer module so that the multiplexer module receives the control signal. Based on the control signal, the target drive switch circuit is determined from multiple drive switch circuits, and the target array light source is driven to turn on / off based on the target drive switch circuit. The multiplexer module includes multiple drive switch circuits, and the light source module includes multiple array light sources. Each array light source includes at least one light-emitting device. When there are multiple light-emitting devices in the array light source, the connection between the light-emitting devices is either a common anode connection or a common cathode connection. The multiple drive switch circuits correspond one-to-one with the multiple array light sources, and the multiple drive switch circuits drive the corresponding array light source to turn on / off at different driving times.

[0090] In some embodiments, the main control module generates a control signal based on the user's control requirements and sends the control signal to the multiplexer module. The multiplexer module determines the target drive switch circuit according to the control signal. The drive unit in the target drive switch circuit controls the closing / opening of the target drive switch circuit based on the control signal to control the connection / disconnection of the corresponding target array light source, that is, the lighting / closing of the target array light source.

[0091] The above technical solution controls the multi-channel selection switch module through the main control module to turn the array light sources in the light source module on or off. This ensures that the array light sources in the light source module, which has both common cathode and common anode connections, do not interfere with each other during operation, enabling precise dimming and reducing equipment manufacturing and maintenance costs.

[0092] In some embodiments, when the control signal is used to characterize a single-path control mode, the control signal includes first target light source information and first illumination cycle information. Sending the control signal to the multiplexer module includes: sending the first target light source information and the first illumination cycle information to the multiplexer module so that the multiplexer module determines the target array light source based on the first target light source information and controls the target array light source based on the first illumination cycle information.

[0093] Specifically, in the single-channel control mode of the main control module, control signals corresponding to the single-channel control mode are generated according to the actual needs of the user. The main control module selects to control only one set of target drive switch circuits to control a target array light source. The control signals include the first target light source information pointing to the target drive switch circuit and the first lighting cycle information pointing to the single lighting time of the target array light source.

[0094] In some embodiments, under single-channel control mode, the main control module generates a control signal. The first target light source information of the control signal is to turn on the yellow light channel, and the first lighting cycle information is that the single lighting time is 15 minutes. The main control module sends the control signal to the drive switch circuit corresponding to the yellow light channel. The drive unit of the drive switch circuit corresponding to the yellow light channel receives the control signal and turns on the corresponding upper switch unit and lower switch unit to light up the yellow light channel.

[0095] The above technical solution, with its single-channel control mode, is suitable for specific treatment scenarios requiring a single wavelength of light irradiation, such as phototherapy with a specific wavelength or photosensitivity therapy, thus meeting personalized needs.

[0096] In some embodiments, when the control signal is used to characterize a multiplex control mode, the control signal includes second target light source information and second illumination cycle information. Sending the control signal to the multiplexer module includes: sending the second target light source information and the second illumination cycle information to the multiplexer module so that the multiplexer module determines at least two target array light sources based on the second target light source information and sequentially controls at least two target array light sources based on the second illumination cycle information.

[0097] Specifically, when the main control module is in multi-channel control mode, it generates control signals corresponding to the multi-channel control mode according to the user's actual needs. The main control module can select and control multiple sets of target drive switch circuits to control multiple target array light sources. The control signals include second target light source information pointing to the target drive switch circuit and second lighting cycle information pointing to the single lighting time of the target array light source.

[0098] In some embodiments, under multi-channel control mode, the main control module generates a control signal. The second target light source information of the control signal is to turn on the yellow light channel, turn on the blue light channel, and turn on the red light channel. The second lighting cycle information is that the yellow light channel is lit for 10 minutes, the blue light channel is lit for 10 minutes, and the red light channel is lit for 10 minutes. The main control module sends the control signal to the drive switch circuit corresponding to the yellow light channel. The drive unit of the drive switch circuit corresponding to the yellow light channel receives the control signal and turns on the corresponding upper switch unit and lower switch unit to light up the yellow light channel. Similarly, the blue light channel and the red light channel are lit up.

[0099] The above technical solution achieves the effect of lighting up three channels by using a multi-channel selection switch module to time-division multiplex the drive unit, thus meeting the needs of multi-wavelength phototherapy.

[0100] In some embodiments, the method further includes:

[0101] The output power information and dimming signal are generated based on the preset modulation signal and the lighting cycle information of the target array light source to be controlled, and sent to the light source power supply module. The light source power supply module receives the output power information and dimming signal, controls the output power according to the output power information to adjust the power of the target array light source in the light source module, and controls the output current according to the dimming signal to adjust the illumination intensity of the target array light source in the light source module. The lighting cycle information is used to characterize the single lighting duration of the target array light source.

[0102] When the main control module is in single-channel control mode, it generates the control signal corresponding to the single-channel control mode, generates output power information based on a preset modulation signal, and sends the output power information to the light source power supply module to control the lighting time of the target array light source. If dimming is required, a dimming signal is generated and sent to the light source power supply module to control the current of the light source power supply module, thereby adjusting the brightness of the target array light source.

[0103] In multi-channel control mode, the main control module generates control signals corresponding to the multi-channel control mode. Simultaneously, it generates output power information based on a preset modulation signal and the second illumination cycle information (i.e., the illumination cycle information of the target array light source to be controlled). This output power information is then sent to the light source power supply module. The second illumination cycle information includes the single illumination duration of the target array light source. The output power information of the target array light source is the product of the preset output power, the single illumination duration, the preset scanning frequency, and the duty cycle of the preset modulation signal. This is used to divide one output of the light source power supply module into multiple outputs via pulse width modulation (PWM) signals, with the sum of the percentages of each output being 100%. By adjusting the percentage of each output, the power of each output is controlled. Furthermore, when switching array light source channels, the main control module can also send dimming signals to adjust the output current of the light source power supply module, thereby achieving more precise control of the output power to meet specific phototherapy needs.

[0104] In some embodiments, the yellow light channel, blue light channel, and red light channel can operate simultaneously in multi-channel control mode, and the brightness ratio of each array light source can be adjusted according to treatment needs. For example... Figure 5 As shown, the timing diagram illustrates the channel illumination in multi-channel control mode. Three array light sources are cyclically illuminated via PWM. The PWM frequency can be low, such as illuminating the yellow channel for 10 minutes, the blue channel for 10 minutes, and the red channel for 10 minutes. Alternatively, the PWM frequency can be high. When the switching frequency exceeds 100Hz, due to the persistence of vision in the human eye, the time-division multiplexing of the drive unit via a multiplexer module achieves the effect of simultaneous illumination of all three channels, meeting the needs of multi-wavelength phototherapy.

[0105] The above-mentioned technical solution, with its multi-channel control mode, provides more flexible and diverse options for phototherapy effects and can meet the requirements of different treatment courses and plans.

[0106] According to a third aspect of this disclosure, a control device for a multi-band light source is provided, applied to the above-mentioned system, the device comprising:

[0107] The control signal sending module is used to send control signals to the multiplexer module so that the multiplexer module receives the control signals, determines the target drive switch circuit from multiple drive switch circuits according to the control signals, and drives the target array light source to turn on / off based on the target drive switch circuit. The multiplexer module includes multiple drive switch circuits, and the light source module includes multiple array light sources. Each array light source includes at least one light-emitting device. When there are multiple light-emitting devices in the array light source, the connection between the light-emitting devices is a common anode connection or a common cathode connection. The multiple drive switch circuits correspond one-to-one with the multiple array light sources, and the multiple drive switch circuits drive the corresponding array light source to turn on / off at different driving times.

[0108] In some embodiments, the functions or modules of the apparatus provided in this disclosure can be used to perform the methods described in the above method embodiments. The specific implementation can be referred to the description of the above method embodiments, and for the sake of brevity, it will not be repeated here.

[0109] This application provides a control device for a multi-band light source. The device can be a terminal or a server. The control device for the multi-band light source includes a processor and a memory. The memory stores at least one instruction or at least one program. The at least one instruction or at least one program is loaded and executed by the processor to implement the control method for the multi-band light source provided in the above method embodiments.

[0110] Memory is used to store software programs and modules. The processor executes these stored software programs and modules to perform various functional applications and data processing. Memory can primarily consist of a program storage area and a data storage area. The program storage area stores the operating system, application programs required for functionality, etc.; the data storage area stores data created based on device usage, etc. Furthermore, memory can include high-speed random access memory (RAM) and non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device. Accordingly, memory can also include a memory controller to provide the processor with access to the memory.

[0111] The methods and embodiments provided in this application can be executed in electronic devices such as mobile terminals, computer terminals, servers, or similar computing devices. Figure 6This is a hardware structure block diagram of an electronic device for a multi-band light source control method provided in an embodiment of this application. (See diagram for example.) Figure 6 As shown, the electronic device 900 can vary significantly due to differences in configuration or performance. It may include one or more central processing units (CPUs) 910 (CPUs 910 may include, but are not limited to, microprocessors such as MCUs or programmable logic devices such as FPGAs), a memory 930 for storing data, and one or more storage media 920 (e.g., one or more mass storage devices) for storing application programs 923 or data 922. The memory 930 and storage media 920 may be temporary or persistent storage. The program stored in the storage media 920 may include one or more modules, each module may include a series of instruction operations on the electronic device. Furthermore, the CPU 910 may be configured to communicate with the storage media 920 and execute the series of instruction operations in the storage media 920 on the electronic device 900. Electronic device 900 may also include one or more power supplies 960, one or more wired or wireless network interfaces 950, one or more input / output interfaces 940, and / or one or more operating systems 921, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, etc.

[0112] The input / output interface 940 can be used to receive or send data via a network. Specific examples of the network described above may include a wireless network provided by the communication provider of the electronic device 900. In one example, the input / output interface 940 includes a network interface controller (NIC), which can connect to other network devices via a base station to communicate with the Internet. In another example, the input / output interface 940 may be a radio frequency (RF) module for wireless communication with the Internet.

[0113] Those skilled in the art will understand that Figure 6 The structure shown is for illustrative purposes only and does not limit the structure of the electronic device described above. For example, the electronic device 900 may also include... Figure 6 The more or fewer components shown, or having the same Figure 6 The different configurations shown.

[0114] Embodiments of this application also provide a computer-readable storage medium, which can be disposed in an electronic device to store at least one instruction or at least one program related to implementing a multi-band light source control method in the method embodiment. The at least one instruction or the at least one program is loaded and executed by the processor to implement the multi-band light source control method provided in the above method embodiment.

[0115] Optionally, in this embodiment, the storage medium may be located at at least one of the multiple network servers in a computer network. Optionally, in this embodiment, the storage medium may include, but is not limited to, various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0116] According to one aspect of this application, a computer program product or computer program is provided, comprising computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the methods provided in the various alternative implementations described above.

[0117] As can be seen from the embodiments of the control method, apparatus, device, terminal, server, storage medium, or computer program for multi-band light sources provided in this application, the system of this application includes a main control module, a multiplexer module, and a light source module. The multiplexer module includes multiple drive switch circuits; the light source module includes multiple array light sources; each array light source includes at least one light-emitting device. When multiple light-emitting devices exist in the array light source, the connection between the light-emitting devices is a common anode connection or a common cathode connection. The multiple drive switch circuits correspond one-to-one with the multiple array light sources, and the multiple drive switch circuits control the corresponding array light source to turn on / off at different driving times. The main control module is used to send control signals to the multiplexer module; the multiplexer module is used to receive control signals, determine the target drive switch circuit from the multiple drive switch circuits according to the control signals, and drive the target array light source to turn on / off based on the target drive switch circuit. Multiple wavelength, common cathode / common anode mixed light-emitting device LED chips can be integrated into one light source module. Through specific electrical connection methods and control methods, independent control and precise dimming of multiple LED channels are achieved, improving the therapeutic effect and flexibility of the phototherapy device, and reducing the manufacturing and maintenance costs of the equipment.

[0118] It should be noted that the order of the embodiments described above is merely for descriptive purposes and does not represent the superiority or inferiority of the embodiments. Furthermore, the above description focuses on specific embodiments of this application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps described in the claims can be performed in a different order than that shown in the embodiments and still achieve the desired results. Additionally, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired results. In some implementations, multitasking and parallel processing are also possible or may be advantageous.

[0119] The various embodiments in this application are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the device, equipment, and storage medium embodiments are basically similar to the method embodiments, so the descriptions are relatively simple; relevant parts can be referred to the descriptions of the method embodiments.

[0120] Those skilled in the art will understand that all or part of the steps of the above embodiments can be implemented by hardware, or by a program instructing the relevant hardware to implement them. The program can be stored in a computer-readable storage medium, such as a read-only memory, a disk, or an optical disk.

[0121] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A control system for a multi-band light source, characterized in that, The system includes a main control module, a multiplexer module, and a light source module. The multiplexer module includes multiple drive switch circuits. The light source module includes multiple array light sources. Each array light source includes at least one light-emitting device. When there are multiple light-emitting devices in the array light source, the connection between the light-emitting devices is either a common anode connection or a common cathode connection. The multiple drive switch circuits correspond one-to-one with the multiple array light sources, and the multiple drive switch circuits drive the corresponding array light source to turn on / off at different driving times. The main control module is used to send control signals to the multiplexer module; The multiplexer module is used to receive the control signal, determine the target drive switch circuit from the plurality of drive switch circuits according to the control signal, and drive the target array light source to turn on / off based on the target drive switch circuit; The system also includes a light source power supply module, which is electrically connected to the multiplexer module and communicatively connected to the main control module. Each drive switch circuit includes a drive unit, an upper switch unit, and a lower switch unit, wherein the drive unit is disposed between the upper switch unit and the lower switch unit; The upper switch unit of each drive switch circuit is connected in series between the output positive terminal of the light source power module and the anode of the array light source corresponding to each drive switch circuit. The lower switch unit of each driving switch circuit is connected in series between the output negative terminal of the light source power module and the cathode of the array light source corresponding to each driving switch circuit. The driving unit is used to drive the upper switch unit and the lower switch unit to close / open based on the control signal sent by the main control module, so as to connect / disconnect the driving switch circuit.

2. The system according to claim 1, characterized in that, When the control signal is used to characterize a single-channel control mode, the control signal includes first target light source information and first illumination cycle information. The multiplexer module is used to determine the target array light source based on the first target light source information and to control the target array light source based on the first illumination cycle information.

3. The system according to claim 1, characterized in that, When the control signal is used to characterize the multi-channel control mode, the control signal includes second target light source information and second illumination cycle information. The multi-channel selection switch module is used to determine at least two target array light sources based on the second target light source information, and to sequentially control the at least two target array light sources based on the second illumination cycle information.

4. The system according to claim 1, characterized in that, The main control module is also used to generate output power information and dimming signal based on the preset modulation signal and the lighting cycle information of the target array light source to be controlled, and send them to the light source power supply module. The lighting cycle information is used to characterize the single lighting duration of the target array light source. The light source power supply module is used to receive the output power information and the dimming signal, control the output power according to the output power information to adjust the power of the target array light source in the light source module, and control the output current according to the dimming signal to adjust the illumination intensity of the target array light source in the light source module.

5. The system according to claim 1, characterized in that, The anode of the light-emitting device of each array light source is connected to the positive output of the light source power module corresponding to each array light source; The cathode of the light-emitting device of each array light source is connected to the negative output terminal of the light source power module corresponding to each array light source.

6. A method for controlling a multi-band light source, applied to the system described in any one of claims 1-5, characterized in that, The method includes: A control signal is sent to the multiplexer module so that the multiplexer module receives the control signal, determines the target drive switch circuit from multiple drive switch circuits according to the control signal, and drives the target array light source to turn on / off based on the target drive switch circuit; the multiplexer module includes multiple drive switch circuits, the light source module includes multiple array light sources, each array light source includes at least one light-emitting device, when there are multiple light-emitting devices in the array light source, the connection method between the light-emitting devices is common anode connection and common cathode connection, the multiple drive switch circuits correspond one-to-one with the multiple array light sources, and the multiple drive switch circuits drive the corresponding array light source to turn on / off at different driving times.

7. The method according to claim 6, characterized in that, When the control signal is used to characterize a single-channel control mode, the control signal includes first target light source information and first illumination cycle information. Sending the control signal to the multiplexer module includes: sending the first target light source information and the first illumination cycle information to the multiplexer module, so that the multiplexer module determines the target array light source based on the first target light source information and controls the target array light source based on the first illumination cycle information.

8. The method according to claim 6, characterized in that, When the control signal is used to characterize the multi-channel control mode, the control signal includes second target light source information and second illumination cycle information. Sending the control signal to the multi-channel selection switch module includes: sending the second target light source information and the second illumination cycle information to the multi-channel selection switch module, so that the multi-channel selection switch module determines at least two target array light sources based on the second target light source information, and sequentially controls the at least two target array light sources based on the second illumination cycle information.

9. The method according to claim 6, characterized in that, The method further includes: The output power information and dimming signal generated based on the preset modulation signal and the lighting cycle information of the target array light source to be controlled are sent to the light source power supply module. The light source power supply module receives the output power information and the dimming signal, controls the output power according to the output power information to adjust the power of the target array light source in the light source module, and controls the output current according to the dimming signal to adjust the illumination intensity of the target array light source in the light source module. The lighting cycle information is used to characterize the single lighting duration of the target array light source.

10. A control device for a multi-band light source, applied to the system described in any one of claims 1-5, characterized in that, The device includes: A control signal sending module is used to send control signals to a multiplexer module, so that the multiplexer module receives the control signals, determines a target drive switch circuit from multiple drive switch circuits according to the control signals, and drives the target array light source to turn on / off based on the target drive switch circuit. The multiplexer module includes multiple drive switch circuits, and the light source module includes multiple array light sources. Each array light source includes at least one light-emitting device. When there are multiple light-emitting devices in the array light source, the connection method between the light-emitting devices is common anode connection and common cathode connection. The multiple drive switch circuits correspond one-to-one with the multiple array light sources, and the multiple drive switch circuits drive the corresponding array light source to turn on / off at different driving times.

11. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores at least one instruction or at least one program, which is loaded and executed by a processor to implement the control method for a multi-band light source as described in any one of claims 6-9.

12. An electronic device, characterized in that, The system includes at least one processor and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the at least one processor implements the multi-band light source control method as described in any one of claims 6-9 by executing the instructions stored in the memory.

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