Dr. Huimin Cui Profile

Dr. Huimin Cui

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 | 4 March 2024 Paper

A direction-aimed radiation detector and strength estimation method based on mobile robot system

Wenrui Gao, Huimin Cui, Kuiying Yin, Chuan Liu, Zhaoyou Huang

Proceedings Volume 12981, 129812N (2024) https://doi.org/10.1117/12.3015015

Read Abstract +

To address the problems of inaccurate dose rate and long-period measurement, this paper presents a nuclear radiation detector with the function of directional determination, as well as the corresponding Bayesian-based strength estimation method. Firstly, a vehicle-mounted radiation detector with large measurement range is designed, together with the steering mechanism and size-differentiated shielding shell, completing the ultra-wide measurement range of 0.15μGy/h~500Gy/h and the precise directional aiming functions. Enlightened by the characteristics of conjugated Gamma distribution, the radiation strength estimation method is established in an iterative manner. By comparing and analyzing the convergence properties and prediction efficiency under different shape parameters γ and scale parameters β, the selection criteria for initial model parameters is clarified. Finally, the proposed nuclear detector and estimation method are applied in the actual radiation source searching task, verifying the real-time, effectiveness, and accuracy of the overall radiation source detection system. The experimental results show that, the measurement method based on conjugated distribution theory can significantly reduce the number of estimated iterations to less than 15 steps, and improve the accuracy of the directional aiming function, ensuring the ability of on-line exploitation and exploration for the mobile system.

Proceedings Article | 21 December 2023 Paper

Robot-based source-seeking and exploration strategy in an unknown nuclear environment

Wenrui Gao, Huimin Cui, Kuiying Yin, Rumei Li, Wentao Du

Proceedings Volume 12970, 1297026 (2023) https://doi.org/10.1117/12.3012214

KEYWORDS: Unmanned systems, Mobile robots, Information theory, Autonomous vehicles

Read Abstract +

The unmanned system is always employed in the uncontrolled radiation source accidents, tackling with geometric field mapping, obstacle avoidance exploration and radiation sources localization simultaneously. To balance the multiple subtasks, a novel source seeking and exploration strategy is proposed in this paper. Firstly, the geometric metric map and radioactive topology map are constructed respectively, while the evaluation functions are established to merge above both maps into the hybrid costmap. Additionally, the RRT* structure is introduced into the path planning module, leading to the capabilities of full-map expansion and multi-source exploitation. By combining the costmap with RRT* structure, the topological paths which satisfy source seeking and map exploration can be generated in the cluttered environment. Experimental results verify the effectiveness of the multi-task path planner, taking into account both multisource exploitation and environment exploration in an online manner.

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