Medical cold light source control system and method

Through the combination of feedforward control, gain scheduling and feedback control, the problem of difficult to take into account both response speed and stability in medical cold light source control is solved, and rapid response and stable adjustment are achieved, which improves the dynamic performance of medical cold light sources.

CN120603096APending Publication Date: 2025-09-05LUKA (CHONGQING) MEDICAL EQUIP CO LTD
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Patent Information

Application Number
CN202511034625.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-25
Publication Date
2025-09-05

AI Technical Summary

Technical Problem

In the existing medical cold light source control technology, it is difficult to take into account the response speed and dynamic adjustment stability, resulting in poor response delay, drift and dynamic performance in brightness and color temperature adjustment.

Method used

The feedforward control module is used to predict brightness instructions, the gain scheduling module predicts thermal disturbances and adjusts PID gain, the feedback control module corrects temperature deviation in real time, and generates composite driving instructions through the instruction synthesis module to achieve rapid response and stability combination.

Benefits of technology

It realizes rapid response and stable adjustment of medical cold light sources, avoids temperature overshoot and oscillation, and improves the dynamic adjustment smoothness and control accuracy of the system.

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Abstract

The invention relates to a medical cold light source control system and method, and relates to the technical field of medical light source control, and the system comprises an LED light source module, a temperature sensor, a driving circuit and a control unit. The control method comprises the following steps: querying a preset model through the feedforward control module according to a target brightness instruction, and quickly calculating a basic driving instruction; meanwhile, a gain scheduling module predicts thermal disturbance according to the brightness change and dynamically adjusts and generates a working PID (Proportion Integration Differentiation) gain; and the feedback control module calculates a feedback correction instruction according to the deviation between the actual temperature and the target temperature by using the working PID gain. And finally, the instruction synthesis module synthesizes the basic driving instruction and the feedback correction instruction into a composite driving instruction, and controls a driving circuit to drive a light source. Fast response is guaranteed through feedforward, and smoothness of the dynamic adjusting process and final temperature stability are guaranteed through feedback of self-adaptive gain.
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