Environmental control device for high-speed pulse modulation light source and LED lamps

Abstract

This invention discloses an environmental control device and LED lamp for a high-speed pulse modulation light source, which can solve problems such as insufficient pulse driving accuracy, weak thermal effect control, poor synchronization performance and weak environmental adaptability of the light source. It realizes real-time monitoring and adjustment of the light source's working status and fault feedback, avoids the problems of imaging instability and accelerated light source aging caused by traditional control methods, and improves the operational stability and control efficiency of the light source system.

Description

Technical Field

[0001] This application belongs to the field of lighting technology, specifically relating to an environmental control device for a high-speed pulse modulation light source and an LED lamp. Background Technology

[0002] The stable and controllable operation of high-speed pulse-modulated LED light sources is crucial for ensuring imaging accuracy and system reliability. However, current-based environmental control technologies for LED light sources primarily rely on simple current control or single-parameter monitoring. These control parameters are susceptible to factors such as LED chip wear, transient pulse thermal effects, and fluctuations in external ambient temperature, leading to insufficient control precision and difficulty in stable operation under complex conditions like high-speed pulse flicker. Most of these technologies rely on passive monitoring, only detecting abnormal adhesion states after image quality deteriorates, the light source malfunctions, or performance declines. This delayed response prevents early detection of abnormal trends in LED light source operation and the approach of adhesion limits, leaving insufficient time for adjustment and intervention in the imaging system. Therefore, a high-speed pulse-modulated light source environmental control device is urgently needed to address these issues. Summary of the Invention

[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes an environmental control device for a high-speed pulse modulation light source, which can solve problems such as insufficient pulse driving accuracy, weak thermal effect control, poor synchronization performance, and weak environmental adaptability of the light source.

[0004] To achieve the above objectives, a first aspect of the present invention provides an environmental control device for a high-speed pulse modulation light source, comprising: an LED control module connected to the LED light source, used to receive control commands and adjust the operating current of the LED light source based on the control commands; a trigger module connected to the LED light source, used to receive an external square wave signal and perform high-speed pulse modulation on the LED light source based on the external square wave signal, so that the LED light source is triggered synchronously with a camera; a power feedback module connected to the LED light source, used to collect the output power of the LED light source; a temperature monitoring module connected to the LED light source, used to collect the temperature data of the LED light source; an environmental control module connected to the power feedback module and the temperature monitoring module, used to receive the output power and temperature data, and detect the operating status of the LED light source based on the output power and temperature data; and a main control module connected to the environmental control module and the LED control module, used to generate control commands according to the operating status of the LED light source and a target current parameter, wherein the target current parameter is used to indicate that the operating current of the LED light source reaches a target current value.

[0005] In some embodiments, the LED control module includes an LED constant current drive module and a power adjustment module; the power adjustment module is connected to the main control module and the LED constant current drive module, and is used to receive target current parameters and generate control commands based on the target current parameters and the operating status of the LED light source; the LED constant current drive module is used to adjust the operating current of the LED light source according to the control commands.

[0006] In some embodiments, the system further includes: a communication module connected to the host computer and the main control module, used to receive the target current parameters sent by the host computer and send the target current parameters to the main control module.

[0007] In some embodiments, the device further includes: a power conversion module, the input of which is connected to an external voltage, and the output of which is connected to an LED control module, a trigger module, a power feedback module, a temperature monitoring module, an environmental control module, a main control module, and a communication module, respectively, for converting the external voltage into an operating voltage suitable for the environmental control device.

[0008] In some embodiments, the environmental control module is also used to detect the external ambient temperature of the environmental control device and generate an auxiliary control strategy for the LED light source based on the external ambient temperature.

[0009] In some embodiments, the auxiliary control strategy includes: in response to the external ambient temperature being higher than a preset temperature threshold, generating a first feedback instruction, the first feedback instruction being used to instruct the LED control module to reduce the operating current of the LED light source or limit the maximum output power of the LED light source, so as to suppress the junction temperature rise of the LED light source.

[0010] In some embodiments, the auxiliary control strategy includes: in response to the external ambient temperature being lower than a preset temperature threshold, generating a second feedback instruction, the second feedback instruction being used to instruct the LED control module to increase the initial operating current of the LED light source or execute a preheating pulse sequence, so as to shorten the time required for the LED light source to reach the target current value.

[0011] In some embodiments, the trigger module receives an external square wave signal via an SMA coaxial connector and generates a strobe modulation signal for the LED light source based on the frequency and duty cycle of the external square wave signal.

[0012] In some embodiments, the power feedback module includes a high-speed analog-to-digital converter that acquires the output power of the LED light source at a sampling rate not lower than the pulse repetition frequency of the strobe modulation signal.

[0013] An environmental control device for a high-speed pulse-modulated light source according to an embodiment of the present invention includes: an LED control module connected to the LED light source, used to receive control commands and adjust the operating current of the LED light source based on the control commands; a trigger module connected to the LED light source, used to receive an external square wave signal and perform high-speed pulse modulation on the LED light source based on the external square wave signal, so that the LED light source is triggered synchronously with a camera; a power feedback module connected to the LED light source, used to collect the output power of the LED light source; a temperature monitoring module connected to the LED light source, used to collect the temperature data of the LED light source; an environmental control module connected to the power feedback module and the temperature monitoring module, used to receive the output power and temperature data, and detect the operating status of the LED light source based on the output power and temperature data; and a main control module connected to the environmental control module and the LED control module, used to generate control commands according to the operating status of the LED light source and a target current parameter, wherein the target current parameter is used to indicate that the operating current of the LED light source reaches a target current value. Therefore, this application can solve the problems of insufficient pulse driving accuracy, weak thermal effect control, poor synchronization performance and weak environmental adaptability of the light source, realize real-time monitoring and adjustment of the light source working status and fault feedback, avoid the problems of imaging instability and accelerated light source aging caused by traditional control methods, and improve the operational stability and control efficiency of the light source system.

[0014] To achieve the above objectives, a second aspect of the present invention provides an LED lighting fixture, including an LED light source and an environmental control device for a high-speed pulse modulation light source connected to the LED light source, wherein the environmental control device for the high-speed pulse modulation light source is any one of the high-speed pulse modulation light source environmental control devices described above.

[0015] The LED lamps according to embodiments of the present invention can solve problems such as insufficient pulse driving accuracy of light sources, weak thermal effect control, poor synchronization performance and weak environmental adaptability. They realize real-time monitoring and adjustment of the working status of the light source and fault feedback, avoid the problems of unstable imaging and accelerated aging of light sources caused by traditional control methods, and improve the operational stability and control efficiency of the light source system.

[0016] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the environmental control device for a high-speed pulse modulation light source according to an embodiment of this application; Figure 2 This is a structural schematic diagram of an LED lamp in an embodiment of this application.

[0018] Reference numerals in the figures: 100 for the environmental control device of the high-speed pulse modulation light source, 1 for the LED control module, 11 for the LED constant current drive module, 12 for the power adjustment module, 3 for the power conversion module, 4 for the communication module, 5 for the trigger module, 6 for the power feedback module, 7 for the environmental control module, 8 for the main control module, 9 for the temperature monitoring module, 200 for the LED lamp, and 300 for the LED light source. Detailed Implementation

[0019] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While some embodiments of this application are shown in the drawings, it should be understood that this application can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this application. It should be understood that the drawings and embodiments of this application are for illustrative purposes only and are not intended to limit the scope of protection of this application.

[0020] It should be understood that the steps described in the method embodiments of this application may be performed in different orders and / or in parallel. Furthermore, the method embodiments may include additional steps and / or omit the steps shown. The scope of this application is not limited in this respect.

[0021] As described in the background section, the operational stability of high-speed pulse-modulated LED light sources directly affects imaging accuracy and measurement reliability. Currently, the control method commonly used in related devices is simple pulse drive combined with basic electrical parameter monitoring. However, the drive device only implements basic pulse flicker control and records the light source's operating status with a small amount of current or voltage data acquisition. During system operation, it relies on manual or host computer data retrieval for simple judgment, lacking joint monitoring of output power and chip temperature. It cannot cope with the problem of instantaneous junction temperature rise caused by pulse operation, which easily leads to thermal deformation of optical components and degradation of imaging quality. Some devices only alleviate the influence of heat sources through passive heat dissipation or basic temperature control. Overall, the control of the light source is completed by discrete parameter recording and experience-based debugging. The imperfect synchronous triggering mechanism makes it difficult for the light source and camera to achieve coordination. The lack of a complete operating status monitoring and fault feedback mechanism results in low efficiency of acceptance and troubleshooting, a large number of control blind spots, and difficulty in ensuring long-term stable operation of the light source.

[0022] In response to the shortcomings of the aforementioned light source control devices, the environmental control device for the high-speed pulse modulation light source of the present invention can solve problems such as insufficient pulse driving accuracy, weak thermal effect control, poor synchronization performance, and weak environmental adaptability of the light source. It realizes real-time monitoring, adjustment, and fault feedback of the light source's working status, avoids the problems of imaging instability and accelerated light source aging caused by traditional control methods, and improves the operational stability and control efficiency of the light source system.

[0023] The following is for reference. Figure 1 This application describes an environmental control device for a high-speed pulse modulation light source provided in an embodiment.

[0024] like Figure 1 The diagram shown is a structural schematic of an environmental control device for a high-speed pulse modulation light source according to an embodiment of this application. The environmental control device includes: an LED control module 1, connected to the LED light source 300, for receiving control commands and adjusting the operating current of the LED light source 300 based on the control commands; a trigger module 5, connected to the LED light source 300, for receiving external square wave signals and performing high-speed pulse modulation on the LED light source 300 based on the external square wave signals, so that the LED light source 300 is triggered synchronously with the camera; and a power feedback module 6, connected to the LED light source 300, for collecting data from the LED light source 300. The system includes: an output power module 0; a temperature monitoring module 9, connected to the LED light source 300, used to collect temperature data of the LED light source 300; an environmental control module 7, connected to the power feedback module 6 and the temperature monitoring module 9, used to receive output power and temperature data, and detect the operating status of the LED light source 300 based on the output power and temperature data; and a main control module 8, connected to the environmental control module 7 and the LED control module 1, used to generate control commands based on the operating status of the LED light source 300 and the target current parameter, wherein the target current parameter is used to indicate that the operating current of the LED light source 300 reaches the target current value.

[0025] Specifically, the main control module 8 receives preset target current parameters and real-time LED operating data from the environmental control module 7. It then generates a control signal based on this information and sends it to the LED control module 1. The LED control module 1 adjusts the LED's operating current according to the signal, making it stably approach the target value. The trigger module 5 receives an external square wave signal and generates a pulse signal matching the camera's exposure timing to control the LED's synchronous flashing, ensuring that the light source's emission is synchronized with the camera's imaging. During LED operation, the power feedback module 6 collects the output power of the LED light source 300, and the temperature monitoring module 9 collects temperature data from the LED chip and its packaging. Both types of data are transmitted to the environmental control module 7 for processing and then fed back to the main control module 8. The main control module 8 adjusts the control signal to fine-tune the LED's current output, ensuring the LED remains in a stable operating state.

[0026] As an optional embodiment, the LED control module 1 includes an LED constant current drive module 11 and a power adjustment module 12; the power adjustment module 12 is connected to the main control module 8 and the LED constant current drive module 11, and is used to receive target current parameters and generate control commands based on the target current parameters and the operating status of the LED light source 300; the LED constant current drive module 11 is used to adjust the operating current of the LED light source 300 according to the control commands.

[0027] Specifically, the power regulation module 12 performs digital-to-analog conversion on the target current parameters sent by the main control module 8 to generate an analog control signal that adapts to the input requirements of the LED constant current drive module 11. Combined with the real-time operating status data of the LED light source 300 fed back by the environmental control module 7, the control signal is corrected. When the junction temperature of the LED light source 300 rises due to high-speed pulse operation, causing the conduction voltage to drift, the power regulation module 12 can fine-tune the amplitude of the control signal based on the feedback data to offset the impact of load characteristic changes. The corrected control signal is input to the LED constant current drive module 11. This module collects the actual operating current of the LED light source 300 through a built-in current sampling circuit and compares it with the target value corresponding to the control signal to adjust the output state. When the power supply voltage fluctuates slightly or the electrical characteristics of the LED itself change with the operating conditions, the operating current can be stably maintained at the set value. The LED constant current drive module 11 can quickly respond to the control signal and establish a stable target current at the moment of pulse conduction, avoiding the problems of current overshoot or slow rise edge, and ensuring uniform brightness for each flicker.

[0028] As an optional embodiment, it also includes: a communication module 4, which is connected to the host computer and the main control module 8, for receiving the target current parameters sent by the host computer and sending the target current parameters to the main control module 8.

[0029] Specifically, the communication module 4 receives the target current parameter sent by the host computer. This parameter can be set according to the specific application scenario, imaging resolution and dynamic observation requirements of dynamic microscopic imaging. After completing the data format parsing and validity verification, the communication module 4 sends the target current parameter to the main control module 8. At the same time, the communication module 4 can also transmit the light source operation status data generated by the main control module 8 in reverse, so that the host computer can remotely monitor and adjust the parameters of the entire environmental control device.

[0030] As an optional embodiment, it also includes: a power conversion module 3, the input terminal of which is connected to an external voltage, and the output terminal of which is connected to the LED control module 1, the trigger module 5, the power feedback module 6, the temperature monitoring module 9, the environmental control module 7, the main control module 8 and the communication module 4, respectively, for converting the external voltage into the working voltage adapted to the environmental control device.

[0031] Specifically, the input terminal of the power conversion module 3 is connected to an external DC voltage of 12V or higher (a common power supply specification in industrial scenarios). It integrates step-down, voltage regulation, and anti-interference filtering circuits to gradually convert the input high voltage into a standard low voltage that meets the working requirements of each module of the device. For digital control modules such as the main control module 8 and the communication module 4, it converts and outputs a stable 3.3V voltage to meet the power supply requirements for signal processing and data transmission. For power drive modules such as the LED control module 1 and the trigger module 5, it converts and outputs a 5V voltage to ensure their driving capability and operational stability, achieving full module power supply coverage and suppressing problems such as external power supply fluctuations and internal circuit interference.

[0032] As an optional embodiment, the environmental control module 7 is also used to detect the external ambient temperature of the environmental control device and generate an auxiliary control strategy for the LED light source 300 based on the external ambient temperature.

[0033] Specifically, when the ambient temperature is high, the instantaneous heat generated by the LED during high-speed pulse operation is difficult to dissipate quickly, causing the junction temperature to rise continuously, which exacerbates the thermal deformation of optical components and the degradation of imaging quality. When the ambient temperature is low, the LED light source 300 starts up slowly, which may affect the response speed of the current reaching the target value. The environmental control module 7 analyzes the collected ambient temperature data, the LED output power collected by the power feedback module 6, and the LED's own temperature data collected by the temperature monitoring module 9, and combines them with the preset temperature threshold to generate an auxiliary control strategy for the LED light source 300, thereby improving the stability of the LED light source 300 operation.

[0034] As an optional embodiment, the auxiliary control strategy includes: in response to the external ambient temperature being higher than a preset temperature threshold, generating a first feedback instruction, the first feedback instruction being used to instruct the LED control module 1 to reduce the operating current of the LED light source 300 or limit the maximum output power of the LED light source 300, so as to suppress the junction temperature rise of the LED light source 300.

[0035] Specifically, when the external ambient temperature is higher than the preset temperature threshold, it can be determined that the heat dissipation conditions of the current environment are poor. The LED light source 300 is prone to rapid accumulation of junction temperature and exceeding the safe range in the high-speed pulse working mode. The environmental control module 7 generates the corresponding first feedback command and transmits it to the main control module 8. The main control module 8 combines the command to modify the original control logic and issues an adjustment command to the LED control module 1. After receiving the adjustment signal, the LED control module 1 appropriately reduces the working current of the LED light source 300 or limits its maximum output power to a certain extent, thereby reducing the instantaneous heat generation of the LED light source 300 from the driving end and suppressing the junction temperature rise of the LED light source 300.

[0036] As an optional embodiment, the auxiliary control strategy includes: in response to the external ambient temperature being lower than a preset temperature threshold, generating a second feedback instruction, the second feedback instruction being used to instruct the LED control module 1 to increase the initial operating current of the LED light source 300 or execute a preheating pulse sequence, so as to shorten the time required for the LED light source 300 to reach the target current value.

[0037] Specifically, when the external ambient temperature is lower than the preset temperature threshold, the low temperature environment will cause the conduction characteristics of the semiconductor device of the LED light source 300 to deviate, resulting in a slower response speed of the internal circuit of the light source and a longer time for the LED light source 300 to output the target current stably from startup. This is not conducive to the rapid startup and continuous observation of dynamic microscopic imaging of morphology. After the environmental control module 7 identifies the low temperature environment conditions, it generates a corresponding second feedback command and transmits it to the main control module 8. The main control module 8 adjusts the LED control module 1 according to the command, appropriately increasing the initial operating current of the LED light source 300 to accelerate the rate at which the electrical parameters of the light source approach the target value, or controlling the LED control module 1 to output a set of low duty cycle preheating pulse sequences to preheat the LED light source 300 before the formal imaging work begins, so that its chip temperature quickly rises back to the appropriate operating range.

[0038] As an optional embodiment, the trigger module 5 connects to an external square wave signal via an SMA coaxial connector and generates a strobe modulation signal for the LED light source 300 based on the frequency and duty cycle of the external square wave signal.

[0039] Specifically, the SMA coaxial connector of the trigger module 5 serves as the interface for external square wave signals. This interface has strong high-frequency signal transmission performance and anti-electromagnetic interference capabilities, which can reduce attenuation and distortion during the transmission of external signals. The camera control terminal outputs external square wave signals, the frequency and duty cycle of which can be set according to the observation requirements of dynamic microscopic imaging of morphology. This can determine the strobe frequency and single emission duration of the LED light source 300. After the trigger module 5 receives the external square wave signal, it performs signal shaping, amplitude calibration and timing synchronization processing to eliminate noise interference in the signal. It also generates a corresponding strobe modulation signal based on the processed square wave signal parameters to ensure that the strobe action of the LED light source 300 is synchronized with the exposure timing of the camera.

[0040] As an optional embodiment, the power feedback module 6 includes a high-speed analog-to-digital converter to acquire the output power of the LED light source 300 at a sampling rate not lower than the pulse repetition frequency of the strobe modulation signal.

[0041] Specifically, the output power of the LED light source 300 will change periodically with the pulse period of the stroboscopic modulation signal. If the sampling rate is insufficient, power data will be easily missed or distorted. The high-speed analog-to-digital converter collects the output power of the LED light source 300 at a sampling rate no lower than the pulse repetition frequency of the stroboscopic modulation signal, including power data at the rising edge, stable output segment and falling edge of the pulse.

[0042] It should be noted that the high-speed analog-to-digital converter (ADC) has the characteristics of high sampling rate and high resolution, and can quickly convert continuously changing analog signals into discrete digital signals, capturing the entire process of power change of the LED light source 300 in each pulse cycle in high-speed pulse working mode.

[0043] In summary, the environmental control device for the high-speed pulse modulation light source provided in this application includes: an LED control module connected to the LED light source, used to receive control commands and adjust the operating current of the LED light source based on the control commands; a trigger module connected to the LED light source, used to receive an external square wave signal and perform high-speed pulse modulation on the LED light source based on the external square wave signal, so that the LED light source and the camera are triggered synchronously; a power feedback module connected to the LED light source, used to collect the output power of the LED light source; a temperature monitoring module connected to the LED light source, used to collect the temperature data of the LED light source; an environmental control module connected to the power feedback module and the temperature monitoring module, used to receive the output power and temperature data, and detect the operating status of the LED light source based on the output power and temperature data; and a main control module connected to the environmental control module and the LED control module, used to generate control commands according to the operating status of the LED light source and the target current parameter, wherein the target current parameter is used to indicate that the operating current of the LED light source reaches the target current value. Therefore, this application can solve the problems of insufficient pulse driving accuracy, weak thermal effect control, poor synchronization performance and weak environmental adaptability of the light source, realize real-time monitoring and adjustment of the light source working status and fault feedback, avoid the problems of imaging instability and accelerated light source aging caused by traditional control methods, and improve the operational stability and control efficiency of the light source system.

[0044] The LED lamps in the above embodiments apply the corresponding high-speed pulse modulation light source environmental control device in any of the foregoing embodiments, and have the beneficial effects of the corresponding high-speed pulse modulation light source environmental control device embodiments, which will not be repeated here.

[0045] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0046] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other implementations under the guidance of this application without departing from the spirit and scope of the claims. All of these implementations are within the protection scope of this application.

Claims

1. A control device for a high-speed pulse modulation light source, characterized in that, include: LED control module (1), connected to LED light source (300), is used to receive control commands and adjust the operating current of LED light source (300) based on the control commands; The trigger module (5) is connected to the LED light source (300) and is used to receive external square wave signals and perform high-speed pulse modulation on the LED light source (300) based on the external square wave signals so that the LED light source (300) is triggered synchronously with the camera; A power feedback module (6) is connected to the LED light source (300) and is used to collect the output power of the LED light source (300); A temperature monitoring module (9) is connected to the LED light source (300) and is used to collect temperature data of the LED light source (300); The environmental control module (7) is connected to the power feedback module (6) and the temperature monitoring module (9) to receive the output power and the temperature data, and to detect the operating status of the LED light source (300) based on the output power and the temperature data. The main control module (8) is connected to the environmental control module (7) and the LED control module (1) and is used to generate the control command according to the operating status of the LED light source (300) and the target current parameter, wherein the target current parameter is used to indicate that the operating current of the LED light source (300) reaches the target current value.

2. The environmental control device for the high-speed pulse modulation light source according to claim 1, characterized in that, The LED control module (1) includes an LED constant current drive module (11) and a power regulation module (12). The power adjustment module (12) is connected to the main control module (8) and the LED constant current drive module (11) to receive the target current parameter and generate the control command based on the target current parameter and the operating status of the LED light source (300). The LED constant current drive module (11) is used to adjust the operating current of the LED light source (300) according to the control command.

3. The environmental control device for the high-speed pulse modulation light source according to claim 1, characterized in that, Also includes: The communication module (4) is connected to the host computer and the main control module (8) and is used to receive the target current parameters sent by the host computer and send the target current parameters to the main control module (8).

4. The environmental control device for the high-speed pulse modulation light source according to claim 1, characterized in that, Also includes: The power conversion module 3 has an input terminal connected to an external voltage and an output terminal connected to the LED control module 1, the trigger module 5, the power feedback module 6, the temperature monitoring module 9, the environmental control module 7, the main control module 8, and the communication module 4, respectively, for converting the external voltage into a working voltage suitable for the environmental control device.

5. The environmental control device for the high-speed pulse modulation light source according to claim 1, characterized in that, The environmental control module (7) is also used to detect the external ambient temperature of the environmental control device and generate an auxiliary control strategy for the LED light source (300) based on the external ambient temperature.

6. The environmental control device for the high-speed pulse modulation light source according to claim 5, characterized in that, The auxiliary control strategies include: In response to the external ambient temperature being higher than a preset temperature threshold, a first feedback instruction is generated. The first feedback instruction is used to instruct the LED control module (1) to reduce the operating current of the LED light source (300) or limit the maximum output power of the LED light source (300) in order to suppress the junction temperature rise of the LED light source (300).

7. The environmental control device for the high-speed pulse modulation light source according to claim 5, characterized in that, The auxiliary control strategies include: In response to the external ambient temperature being lower than a preset temperature threshold, a second feedback instruction is generated. The second feedback instruction is used to instruct the LED control module (1) to increase the initial operating current of the LED light source (300) or to execute a preheating pulse sequence in order to shorten the time required for the LED light source (300) to reach the target current value.

8. The environmental control device for the high-speed pulse modulation light source according to claim 1, characterized in that, The trigger module (5) connects to the external square wave signal through the SMA coaxial connector and generates a strobe modulation signal for the LED light source (300) according to the frequency and duty cycle of the external square wave signal.

9. The environmental control device for the high-speed pulse modulation light source according to claim 8, characterized in that, The power feedback module (6) includes a high-speed analog-to-digital converter that collects the output power of the LED light source (300) at a sampling rate not lower than the pulse repetition frequency of the strobe modulation signal.

10. An LED lighting fixture, characterized in that, The device includes an LED light source and an environmental control device for a high-speed pulse modulation light source connected to the LED light source, wherein the environmental control device for the high-speed pulse modulation light source is the environmental control device for the high-speed pulse modulation light source as described in any one of claims 1 to 8.

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