Mr. Yanzhao Xu Profile

Yanzhao Xu

SPIE Involvement:

Author

Publications (2)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 26 May 2023 Paper

Intelligent space disinfection system based on microcontroller

Yanzhao Xu, Linmao Wu, Yisong Fan, Qiang Guo

Proceedings Volume 12700, 1270033 (2023) https://doi.org/10.1117/12.2682555

KEYWORDS: Sensors, Ozone, Internet of things, Design and modelling, Intelligence systems, Microcontrollers, Clouds, Data transmission

Read Abstract +

In recent years, due to excessive levels of indoor air pollutants in teaching, there has been an increase in the number of cases of physical illness among primary and secondary school students, thus triggering key national concerns. Traditional air purification devices mainly purify air by means of filtration, they are single-functional and work independently, which makes it difficult to manage centrally. In order to protect students' physical and mental health and improve indoor air quality, a microcontroller-based intelligent control system for space disinfection is designed. The system adopts GD32 microcontroller as the main controller to realize filtration, purification and detection functions, and the air purification equipment connects to the IoT platform through 4G CAT1 chip and MQTT protocol to realize remote detection and control. The test shows that the system is reliable and stable in operation and simple in operation, the system has multi-sensor detection function and can accurately detect ozone, ammonia, formaldehyde, PM2.5, TVOC, carbon dioxide, temperature and humidity in indoor air. Therefore, the system can effectively improve indoor air quality, it solves the problem that the current equipment on the market works alone and has a single function and has a high practical use value.

Proceedings Article | 14 October 2022 Paper

Control system of optimal pulsed light based on ARM

Zhiyi Lu, Yanzhao Xu, Yisong Fan, Qiang Guo

Proceedings Volume 12343, 123432B (2022) https://doi.org/10.1117/12.2648268

KEYWORDS: Control systems, Telecommunications, Power supplies, Xenon, Lamps, Control systems design, Human-machine interfaces, Sensors, Data communications

Read 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.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years