LED light source control system

Abstract

The invention provides an LED light source control system. The LED light source control system comprises a main control module, a dimming module, an LED driving module, an LED module and a power supply module, the main control module comprises a main control chip; and the main control module controls the dimming module to adjust the current of an LED driving chip in the LED driving module in a PWM (Pulse Width Modulation) mode or a DC (Direct Current) mode, so that the brightness of the LED module is adjusted, and a corresponding light source is obtained. The full-spectrum light source is obtained in a PWM adjusting mode and a direct current adjusting mode, and the requirement that the same LED module provides different light source types is met; the uniformity of the light source in the whole light-emitting area is good, and the stability and consistency of product image testing are improved. Various light source types are added, and different requirements of various image sensors for light sources are met. One light source system comprises multiple kinds of light sources, an intelligent adjustable function is supported, and the requirements of image testing of multiple products can be met.

Description

Technical Field

[0001] The invention belongs to the technical field of LED light sources, and in particular relates to an LED light source control system. Background Art

[0002] As a new light source, LED is increasingly widely used due to its advantages such as high efficiency, energy saving, long life, and no flicker. There is a demand for different types of light sources for the same LED array; for example, in the first example, the LED array needs to emit monochromatic visible light as a whole (such as any one of red light, green light, and blue light); in the second example, the LED array needs to emit monochromatic infrared light as a whole; in the third example, the LED array needs to emit white light as a whole, and the white light can be of different color temperatures and brightness. Before the improvement, the light source only realized the function of the output light source, the types of output light sources were relatively small, and the uniformity of light emission within the entire light-emitting area was poor. Summary of the invention

[0003] The purpose of the present invention is to provide an LED light source control system, which realizes that a light source system includes multiple types of light sources, supports intelligent and debuggable functions, and can meet the needs of image testing of multiple products.

[0004] The present invention provides an LED light source control system, comprising:

[0005] A main control module, a dimming module, an LED driving module, an LED module and a power module; the main control module includes a main control chip;

[0006] The main control module controls the dimming module to adjust the current of the LED driver chip in the LED driver module by adjusting the PWM mode or the DC current mode, thereby adjusting the brightness of the LED module to obtain a corresponding light source;

[0007] The power supply module supplies power to the main control module and the LED driving module.

[0008] Furthermore, the dimming module includes an FPGA configuration circuit, which modulates the parameters of the light source as needed to generate a PWM signal and adjust the current of the LED driver chip in the LED module; the parameters of the light source include color temperature and brightness; the PWM signal includes: duty cycle and pulse width.

[0009] Furthermore, the position layout of the LED lamp beads in the LED module includes: M first LED units arranged in a ring-like manner and independent red LEDs, green LEDs, and blue LEDs located in the central area of ​​the ring; the first LED unit includes independent cold white LEDs, warm white LEDs, and infrared LEDs; the infrared LEDs include: IR850 infrared LEDs and IR940 infrared LEDs.

[0010] Furthermore, white light sources with different color temperatures are integrated by adjusting the proportions of the cool white LED, the warm white LED and the infrared LED in the first LED unit and the proportion of any one of the red LED, the green LED and the blue LED.

[0011] Furthermore, the LED lamp bead connection circuit in the LED module includes: a cold white light emitting branch LD, a warm white light emitting branch HD, an infrared light emitting branch IR, a red light emitting branch R, a green light emitting branch G and a blue light emitting branch B connected in parallel;

[0012] The cold white light emitting branch LD comprises a first cold white LED, a second cold white LED to an Mth cold white LED connected in series in sequence;

[0013] The warm white light emitting branch HD comprises a first warm white LED, a second warm white LED to an Mth warm white LED connected in series in sequence;

[0014] The infrared light emitting branch IR includes a first infrared LED, a second infrared LED to an Mth infrared LED which are connected in series in sequence.

[0015] Furthermore, the dimming module includes a digital-to-analog converter U3 and an analog multiplexer U4. The main control chip U1 calculates the configuration of each LED lamp bead in the LED module by modulating the color temperature and color coordinate transformation of the light source, and controls the digital-to-analog converter U3 to convert it into direct current according to the lamp bead configuration; the main control chip U1 controls the analog multiplexer U4 to adjust the LED driver chip U2 in the LED driver module to adjust the light source precision gear.

[0016] Furthermore, the position layout of the LED lamp beads in the LED module includes: N second LED units arranged in a circular pattern; the second LED units include mutually independent red LEDs, green LEDs, blue LEDs, IR850 infrared LEDs, IR940 infrared LEDs, cool white LEDs, pure white LEDs and warm white LEDs.

[0017] Furthermore, white light sources with different color temperatures are integrated by adjusting the proportions of the cool white LED, the pure white LED and the warm white LED.

[0018] Furthermore, the cool white LED, the pure white LED and the warm white LED are distributed inside the annular boundary; the red LED, the green LED, the blue LED, the IR850 infrared LED and the IR940 infrared LED are distributed outside the annular boundary.

[0019] Furthermore, the LED lamp bead connection circuit in the LED module includes: an RGB light-emitting branch, an infrared light-emitting branch, a cold white light-emitting branch, a warm white light-emitting branch and a pure white light-emitting branch connected in parallel;

[0020] The RGB light-emitting branch includes a first RGB three-color lamp bead, a second RGB three-color lamp bead to an Nth RGB three-color lamp bead connected in series in sequence; the RGB three-color lamp beads are independently controlled;

[0021] The infrared light emitting branch comprises a first infrared LED lamp bead, a second infrared LED lamp bead to an Nth infrared LED lamp bead connected in series in sequence;

[0022] The cold white light emitting branch comprises a first cold white LED, a second cold white LED to an Nth cold white LED connected in series in sequence;

[0023] The warm white light emitting branch comprises a first warm white LED, a second warm white LED to an Nth warm white LED connected in series in sequence;

[0024] The pure white light emitting branch includes a first pure white LED, a second pure white LED to an Nth pure white LED which are connected in series in sequence.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The present invention provides an LED light source control system, comprising: a main control module, a dimming module, an LED driving module, an LED module and a power module; the main control module comprises a main control chip; the main control module controls the dimming module to adjust the current of the LED driving chip in the LED driving module by adjusting the PWM mode or adjusting the DC current mode, thereby adjusting the brightness of the LED module to obtain a corresponding light source. The present invention obtains a full-spectrum light source by adjusting the PWM mode and the DC current mode, and meets the requirements of different light source types for the same LED module; the uniformity of the light source in the entire light-emitting area is good, which improves the stability and consistency of product image testing. A variety of light source types are added to meet the different requirements of various image sensors for light sources. A light source system is realized that includes multiple types of light sources, supports intelligent and debuggable functions, and can meet the requirements of various product image tests. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is the block diagram of the LED light source control system.

[0028] Figure 2 Schematic diagram of the principle of adjusting the PWM mode of the LED light source control system to obtain the required light source.

[0029] Figure 3 Schematic diagram of the LED light source control system adjusting the PWM mode LED lamp bead layout.

[0030] Figure 4 This is a schematic diagram of the LED light source control system's PWM LED lamp bead connection circuit.

[0031] Figure 5 Schematic diagram of the principle of adjusting the DC current of the LED light source control system to obtain the required light source.

[0032] Figure 6 The LED light source control system adjusts the DC current to obtain the required light source LED lamp bead layout schematic diagram.

[0033] Figure 7 This is a schematic diagram of the LED lamp bead connection circuit for the LED light source control system to adjust the DC current.

[0034] The reference numerals are as follows:

[0035] 10 - first LED unit; 20 - second LED unit; 21 - RGB light emitting branch; 22 - infrared light emitting branch; 23 - cold white light emitting branch; 24 - warm white light emitting branch; 25 - pure white light emitting branch. DETAILED DESCRIPTION

[0036] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the accompanying drawings are in a very simplified form and use an inaccurate scale, which is only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0037] For ease of description, some embodiments of the present application may use spatially relative terms such as "above", "below", "top", "below", etc. to describe the relationship between one element or component and another (or other) elements or components as shown in the various figures of the embodiments. It should be understood that in addition to the orientations described in the drawings, the spatially relative terms are also intended to include different orientations of the device in use or operation. For example, if the device in the drawings is turned over, the elements or components described as being "below" or "below" other elements or components will subsequently be positioned as being "above" or "above" other elements or components. The terms "first", "second", etc. below are used to distinguish between similar elements and are not necessarily used to describe a specific order or time sequence. It is to be understood that these terms used in this way are interchangeable where appropriate.

[0038] The embodiment of the present invention provides a LED light source control system, such as Figure 1 As shown, including:

[0039] Main control module, dimming module, LED driver module, LED module and power module; the main control module includes a main control chip;

[0040] The main control module controls the dimming module to adjust the current of the LED driver chip in the LED driver module by adjusting the PWM mode or the DC current mode, thereby adjusting the brightness of the LED module to obtain the corresponding light source;

[0041] The power module supplies power to the main control module and the LED driver module.

[0042] The LED light source control system may also include: control software, communication module and EEPROM; the control software is installed in the host computer, for example; the main control module, dimming module, LED driver module and power module may be integrated on the substrate, and the substrate may be a printed circuit board. The host computer is electrically connected to the LED light source control system integrated on the substrate through the communication interface in the communication module; the running program and data in the main control module may be stored in the EEPROM. The control software in the host computer transmits the parameter information of the light source to be modulated to the main control module through the communication module.

[0043] There are demands for different types of light sources for the same LED module or LED array; for example, in the first example, the LED module needs to emit monochromatic visible light as a whole (such as any one of red light, green light and blue light); in the second example, the LED module needs to emit monochromatic infrared light as a whole; in the third example, the LED module needs to emit white light as a whole, and the white light can be of different color temperatures and brightness.

[0044] Figure 2 Schematic diagram of the principle of adjusting the PWM mode of the LED light source control system to obtain the required light source. Figure 3 Schematic diagram of the LED light source control system adjusting the PWM mode LED lamp bead layout. Figure 4 This is a schematic diagram of the LED light source control system's PWM LED lamp bead connection circuit.

[0045] like Figure 2 As shown, the main control module includes the main control chip U1, and the dimming module includes the FPGA configuration circuit. The main control chip U1 transmits the light source related parameters that need to be debugged to the FPGA configuration circuit. The FPGA configuration circuit generates a PWM signal according to the light source related parameters, adjusts the current size of the LED driver chip U2, and thus adjusts the brightness of the LED unit. The light source related parameters include but are not limited to color temperature and brightness. The PWM signal includes: duty cycle and pulse width, etc.

[0046] The power supply module includes a first voltage conversion circuit and a second voltage conversion circuit. The first voltage conversion circuit is used to convert an external DC first voltage (for example, 15V) and output it as a DC second voltage (for example, 3.3V); the output end of the first voltage conversion circuit is electrically connected to the power input end of the main control module; the output end of the first voltage conversion circuit is also electrically connected to the power input end of the LED driver module U2; the second voltage conversion circuit is used to convert the DC second voltage (for example, 3.3V) into a DC third voltage (for example, 1.5V) and supply power to the FPGA configuration circuit.

[0047] For example, Figure 3 As shown, the position layout of the LED lamp beads in the LED module includes: M first LED units 10 arranged in a ring-like interval and mutually independent red LEDs, green LEDs, and blue LEDs located in the center area of ​​the ring; the figure shows the case of M=4; the first LED unit 10 includes mutually independent cold white LEDs, warm white LEDs, and infrared LEDs; the infrared LEDs include: IR850 infrared LEDs and IR940 infrared LEDs.

[0048] The first LED units 10 in the LED module are arranged in a ring-shaped interval, which increases the light-emitting area of ​​the light source and makes the entire ring-shaped area bright; moreover, the uniformity of the light source in the entire ring-shaped area is good, and the light source parameters such as color temperature and brightness of the light sources of each first LED unit 10 on the ring are consistent.

[0049] A full spectrum light source can be modulated, including but not limited to 9 light sources; multiple parameter LEDs work simultaneously to obtain light sources of different parameter types, and a five-primary color three-channel dimming algorithm design; the unique LED ring arrangement design maximizes the uniformity of the light source. The 9 light sources include: any one of the five monochromatic lights (five primary colors) of red, green, blue, IR850 infrared and IR940 infrared, and any one of the four white light sources of A light source, D50, D60 and D65. The red LED, green LED, blue LED, IR850 infrared LED and IR940 infrared LED respectively emit monochromatic lights of their corresponding colors. White light sources with different color temperatures are integrated by adjusting the proportions of the cold white LED, warm white LED and infrared LED in the first LED unit 10 and the proportions of any one of the red LED, green LED and blue LED. White light sources with different color temperatures include, for example, A light source, D50, D60 and D65. A light source: kitchen window spotlight, colorimetric reference light, color temperature is 2856K; D50 light source: international standard artificial daylight, color temperature is 5000K; D60 light source: color temperature is 6000K; D65 light source: international standard artificial daylight, color temperature is 6500K.

[0050] like Figure 4As shown, the LED lamp bead connection circuit in the LED module includes: a cold white light-emitting branch LD, a warm white light-emitting branch HD, an infrared light-emitting branch IR, a red light-emitting branch R, a green light-emitting branch G, and a blue light-emitting branch B connected in parallel. The cold white light-emitting branch LD includes a first cold white LED, a second cold white LED to an Mth cold white LED connected in series in sequence. The warm white light-emitting branch HD includes a first warm white LED, a second warm white LED to an Mth warm white LED connected in series in sequence. The infrared light-emitting branch IR includes a first infrared LED, a second infrared LED to an Mth infrared LED connected in series in sequence.

[0051] Figure 5 Schematic diagram of the principle of adjusting the DC current of the LED light source control system to obtain the required light source. Figure 6 This is a schematic diagram of the LED lamp bead layout for the LED light source control system to adjust the DC current. Figure 7 This is a schematic diagram of the LED lamp bead connection circuit for the LED light source control system to adjust the DC current.

[0052] like Figure 5 As shown, the main control module includes a main control chip U1, and the dimming module includes a digital-to-analog converter U3 and an analog multiplexer U4. The main control chip U1 needs to modulate the color temperature and color coordinate transformation of the light source, calculates the configuration of each LED lamp bead in the LED module, and controls the digital-to-analog converter U3 to convert it into a direct current according to the lamp bead configuration; the main control chip U1 controls the analog multiplexer U4 to adjust the LED driver chip U2 to adjust the light source precision gear. By setting different precision gears, light sources of different brightness can be obtained. For example, in the morning, noon and evening of a day, the color temperature and color coordinates presented by the ambient light source are all different. The light source modulated by the present invention can simulate the ambient light source. The output end of the second voltage conversion circuit is connected to the power input end of the digital-to-analog converter U3.

[0053] like Figure 6 As shown, exemplarily, the LED lamp bead position layout in the LED module includes: N second LED units 20 arranged in a ring-like interval; Figure 6 The case where N=8 is shown in FIG. The value of N is not limited and is configured according to actual needs. The second LED unit 20 includes mutually independent red LEDs, green LEDs, blue LEDs, IR850 infrared LEDs, IR940 infrared LEDs, cold white LEDs, pure white LEDs, and warm white LEDs. The cold white LEDs, pure white LEDs, and warm white LEDs can be distributed inside the annular boundary; the red LEDs, green LEDs, blue LEDs, IR850 infrared LEDs, and IR940 infrared LEDs can be distributed outside the annular boundary.

[0054] The second LED units 20 in the LED module are arranged in a ring-shaped interval, which increases the light-emitting area of ​​the light source and makes the entire ring-shaped area bright; moreover, the uniformity of the light source in the entire ring-shaped area is good, and the light source parameters such as color temperature and brightness of the light sources of each second LED unit 20 on the ring are consistent.

[0055] It can modulate a full spectrum light source, including but not limited to 9 light sources; multiple parameter LEDs work simultaneously to obtain light sources of different parameter types, and the five-primary color three-channel dimming algorithm design; the unique LED ring arrangement design maximizes the uniformity of the light source. The 9 light sources include: any one of the five monochromatic lights (five primary colors) of red, green, blue, IR850 infrared and IR940 infrared, and any one of the four white light sources of A light source, D50, D60 and D65. The red LED, green LED, blue LED, IR850 infrared LED and IR940 infrared LED emit monochromatic lights of their corresponding colors respectively. White light sources with different color temperatures are integrated by adjusting the proportion of the three types (three channels) of cold white LED, pure white LED and warm white LED. White light sources with different color temperatures include, for example: A light source, D50, D60 and D65. A light source: kitchen window spotlight, colorimetric reference light, color temperature is 2856K; D50 light source: international standard artificial daylight, color temperature is 5000K; D60 light source: color temperature is 6000K; D65 light source: international standard artificial daylight, color temperature is 6500K.

[0056] There are requirements for different light source types for the same LED module. For example, in the first example, the LED module needs to emit monochromatic visible light (for example, any one of red light, green light and blue light) as a whole; taking the LED module as a whole emitting monochromatic red light as an example, the red LED in each of the N (for example, N=8) second LED units 20 is controlled to be bright and have the same brightness. In the second example, the LED module needs to emit monochromatic infrared light as a whole; taking the LED module as a whole emitting monochromatic IR850 infrared light as an example, the IR850 infrared LED in each of the N (for example, N=8) second LED units 20 is controlled to be bright and have the same brightness. In the third example, the LED module needs to emit white light as a whole, and the white light can be of different color temperatures and brightness; taking the LED module as a whole emitting A light source white light as an example, the proportion of the three types (three channels) of cold white LED, pure white LED and warm white LED in each of the N (for example, N=8) second LED units 20 is controlled so that each second LED unit 20 can modulate the color temperature and brightness corresponding to the A light source.

[0057] like Figure 7As shown, the LED lamp bead connection circuit in the LED module includes: a parallel RGB light-emitting branch 21, an infrared light-emitting branch 22, a cold white light-emitting branch 23, a warm white light-emitting branch 24, and a pure white light-emitting branch 25. The RGB light-emitting branch 21 includes a first RGB three-color lamp bead, a second RGB three-color lamp bead to an Nth RGB three-color lamp bead connected in series in sequence; the RGB three-color lamp bead is independently controlled; the infrared light-emitting branch 22 includes a first infrared LED lamp bead, a second infrared LED lamp bead to an Nth infrared LED lamp bead connected in series in sequence; the cold white light-emitting branch 23 includes a first cold white LED, a second cold white LED to an Nth cold white LED connected in series in sequence; the warm white light-emitting branch 24 includes a first warm white LED, a second warm white LED to an Nth warm white LED connected in series in sequence; and the pure white light-emitting branch 25 includes a first pure white LED, a second pure white LED to an Nth pure white LED connected in series in sequence.

[0058] The direct current (DC) regulation scheme of the present invention can modulate a full-spectrum light source, which is a linear light source regulation. By continuously adjusting the direct current, the brightness of the light source is adjusted. The continuous adjustment can avoid the water ripple phenomenon of the light source caused by discontinuity; and solves the misjudgment problem caused by the stroboscopic light source in CMOS image testing.

[0059] The present invention obtains a full-spectrum light source by adjusting the PWM mode and the direct current mode, and satisfies the requirements of different light source types for the same LED module; the light source modulated by the present invention can be used for functional testing of CMOS image sensors.

[0060] The main control module, dimming module, LED driving module and power module are integrated on the substrate; multiple output channels and dimming modules are added to correspond to the multiple LEDs in the LED module, and the different requirements of various products for light sources are met by controlling them separately and making the LEDs emit light at the same time. Since a control chip is added to each control channel, the output channel of the LED can be controlled by debugging software, so that the lighting brightness and chromaticity coordinates of the light source can be fine-tuned to match the differences in the light-transmitting hardware in the optical channel, thereby meeting the consistency of the light input parameters for testing the CMOS image sensor chip. Multiple light source types are added to meet the different requirements of various image sensor products for light sources, and the stability and consistency of product image testing are improved. The light source of the present invention completely breaks the single function of the previous light source product, realizes a light source system that includes multiple types of light sources, supports intelligent and debuggable functions, and can meet the needs of image testing of multiple products.

[0061] In summary, the present invention provides an LED light source control system, including: a main control module, a dimming module, an LED driver module, an LED module and a power module; the main control module includes a main control chip; the main control module controls the dimming module to adjust the current of the LED driver chip in the LED driver module by adjusting the PWM mode or adjusting the DC current mode, thereby adjusting the brightness of the LED module to obtain a corresponding light source. The present invention obtains a full-spectrum light source by adjusting the PWM mode and adjusting the DC current mode, and meets the requirements of different light source types for the same LED module; the uniformity of the light source in the entire light-emitting area is good, which improves the stability and consistency of product image testing. A variety of light source types are added to meet the different requirements of various image sensors for light sources. A light source system is realized that includes multiple types of light sources, supports intelligent and debuggable functions, and can be used in conjunction with the requirements of various product image tests.

[0062] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the method disclosed in the embodiment, since it corresponds to the device disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part description.

[0063] The above description is only a description of the preferred embodiment of the present invention, and is not any limitation on the scope of rights of the present invention. Any technical personnel in this field can make possible changes and modifications to the technical solution of the present invention by using the methods and technical contents disclosed above without departing from the spirit and scope of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall fall within the protection scope of the technical solution of the present invention.

Claims

1. A LED light source control system, characterized in that: include: A main control module, a dimming module, an LED driving module, an LED module and a power module; the main control module includes a main control chip; The main control module controls the dimming module to adjust the current of the LED driver chip in the LED driver module by adjusting the PWM mode or the DC current mode, thereby adjusting the brightness of the LED module to obtain a corresponding light source; The power supply module supplies power to the main control module and the LED driving module.

2. The LED light source control system according to claim 1, characterized in that: The dimming module includes an FPGA configuration circuit, which modulates the parameters of the light source as needed to generate a PWM signal and adjust the current of the LED driver chip in the LED module; The parameters of the light source include color temperature and brightness; The PWM signal includes: a duty cycle and a pulse width.

3. The LED light source control system according to claim 2, characterized in that: The LED lamp bead position layout in the LED module includes: M first LED units arranged in a ring-like interval and mutually independent red LEDs, green LEDs, and blue LEDs located in the central area of ​​the ring; the first LED unit includes mutually independent cold white LEDs, warm white LEDs, and infrared LEDs; the infrared LEDs include: IR850 infrared LEDs and IR940 infrared LEDs.

4. The LED light source control system according to claim 3, characterized in that: White light sources with different color temperatures are integrated by adjusting the proportions of the cool white LED, the warm white LED and the infrared LED in the first LED unit and the proportion of any one of the red LED, the green LED and the blue LED.

5. The LED light source control system according to claim 3, characterized in that: The LED lamp bead connection circuit in the LED module includes: a cold white light emitting branch LD, a warm white light emitting branch HD, an infrared light emitting branch IR, a red light emitting branch R, a green light emitting branch G and a blue light emitting branch B connected in parallel; The cold white light emitting branch LD comprises a first cold white LED, a second cold white LED to an Mth cold white LED connected in series in sequence; The warm white light emitting branch HD comprises a first warm white LED, a second warm white LED to an Mth warm white LED connected in series in sequence; The infrared light emitting branch IR includes a first infrared LED, a second infrared LED to an Mth infrared LED which are connected in series in sequence.

6. The LED light source control system according to claim 1, characterized in that: The dimming module includes a digital-to-analog converter U3 and an analog multiplexer U4. The main control chip U1 calculates the configuration of each LED lamp bead in the LED module by transforming the color temperature and color coordinates of the light source to be modulated, and controls the digital-to-analog converter U3 to convert the current into direct current according to the lamp bead configuration; the main control chip U1 controls the analog multiplexer U4 to adjust the LED driver chip U2 in the LED driver module to adjust the light source precision gear.

7. The LED light source control system according to claim 6, characterized in that: The LED lamp bead position layout in the LED module includes: N second LED units arranged in a circular pattern; the second LED units include mutually independent red LEDs, green LEDs, blue LEDs, IR850 infrared LEDs, IR940 infrared LEDs, cold white LEDs, pure white LEDs and warm white LEDs.

8. The LED light source control system according to claim 7, characterized in that: White light sources with different color temperatures are integrated by adjusting the proportions of the cool white LED, the pure white LED and the warm white LED.

9. The LED light source control system according to claim 7, characterized in that: The cool white LED, the pure white LED and the warm white LED are distributed inside the annular boundary; the red LED, the green LED, the blue LED, the IR850 infrared LED and the IR940 infrared LED are distributed outside the annular boundary.

10. The LED light source control system according to claim 7, characterized in that: The LED lamp bead connection circuit in the LED module includes: an RGB light-emitting branch, an infrared light-emitting branch, a cold white light-emitting branch, a warm white light-emitting branch and a pure white light-emitting branch connected in parallel; The RGB light-emitting branch includes a first RGB three-color lamp bead, a second RGB three-color lamp bead to an Nth RGB three-color lamp bead connected in series in sequence; the RGB three-color lamp beads are independently controlled; The infrared light emitting branch comprises a first infrared LED lamp bead, a second infrared LED lamp bead to an Nth infrared LED lamp bead connected in series in sequence; The cold white light emitting branch comprises a first cold white LED, a second cold white LED to an Nth cold white LED connected in series in sequence; The warm white light emitting branch comprises a first warm white LED, a second warm white LED to an Nth warm white LED connected in series in sequence; The pure white light emitting branch includes a first pure white LED, a second pure white LED to an Nth pure white LED which are connected in series in sequence.

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