Control system of optimal pulsed light based on ARM

Zhiyi Lu; Yanzhao Xu; Yisong Fan; Qiang Guo

doi:10.1117/12.2648268

14 October 2022 Control system of optimal pulsed light based on ARM

Zhiyi Lu, Yanzhao Xu, Yisong Fan, Qiang Guo

Proceedings Volume 12343, 2nd International Conference on Laser, Optics and Optoelectronic Technology (LOPET 2022); 123432B (2022) https://doi.org/10.1117/12.2648268
Event: 2nd International Conference on Laser, Optics and Optoelectronic Technology (LOPET 2022), 2022, Qingdao, China

Abstract

In order to realize the visible, integrated, and intelligent control requirements of optimal pulsed light, an optimal pulsed light control system for dry eye treatment was designed based on ARM. The system adopts the double-layer structure of Android development platform + STM32 micro-controller, which realizes the isolation of human-computer interaction and component control, and enhances the application expansion function of the system. Relying on the PWM control signal generated by the high-speed clock integrated by the STM32 micro-controller, the output voltage can be continuously adjusted from 200 to 700V; Using the single pulse/pulse cluster signal can realize the precise control of the optimal pulsed light, the specific indicators are as follows: single/double/triple pulse output; sub-pulse width is 0.3, 0.5, and continuously adjustable from 1 to 5ms; sub-pulse interval is continuously adjustable from 1 to 99ms, and the step is 1ms; the frequency in single pulse mode is 0.5, and continuously adjustable from 1 to 10Hz. The system integrates a temperature and humidity module and a micro switch module to monitor the working environment and detect the ready state of the treatment handle in real time. The tests show that the system is reliable and stable in operation, which meets the requirements of control accuracy, and plays a pre-research role for the subsequent extensive application expansion of the instrument.

Citation Download Citation

Zhiyi Lu, Yanzhao Xu, Yisong Fan, and Qiang Guo "Control system of optimal pulsed light based on ARM", Proc. SPIE 12343, 2nd International Conference on Laser, Optics and Optoelectronic Technology (LOPET 2022), 123432B (14 October 2022); https://doi.org/10.1117/12.2648268

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KEYWORDS

Control systems

Telecommunications

Power supplies

Control systems design

Lamps

Xenon

Human-machine interfaces

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