PRE2024 3 Group6

Dev, Geert Langhout - 1721704, Michiel Sweere - 1762435, Merlin 1734008, Haochen1533819

https://docs.google.com/document/d/1pPDWfC-ANSb7UUsSuHuB8DjOFGSYxDZMXs8z4nUY1Wk/edit?usp=sharing

^shared document

Goals

Core goal: Clean the blackboard quickly and effectively, leaving no dead corners.

Secondary goals:

1. Provide a function to save the blackboard content before erasing, which can be linked with the projector to recall the previously erased content.

2. Remote control through a mobile app.

3. Provide a dust removal solution to prevent dust pollution from affecting the health of users. (May be the most important secondary goal)

4. If you decide to have projection capabilities, you may be able to combine voice recognition and natural language processing functions to record some important words (using ready-made APIs, such as Google Speech-to-Text), or even connect with chat AI such as GPT or Deepseek to provide AI assistant services instantly through oral dictation when needed. (This is relatively simple in theory. After all, it is a purely procedural job and does not even require much debugging.)

Designs:

1.simple one, one eraser hanging on a track. Moved up and down.

2.Traditional design, one big bar moves from left to right

3.Shaped like car wipers.

4.Freely moving little car with two cables pointed on two corners.

5. Drone

Planning and milestones

Week	Activities	Milestones
1	Decide on subject, start literature research and user study
2	Decide on design, work out design and develop algorithms	Design chosen, cleaning path algorithm chosen
3	Work out design and start prototyping, start writing code for robot
4	Put together mechanical aspects of prototype, combine software with actuators	Mechanical part prototype finished, software finished
5	Combine software, mechanical, actuators into one prototype	Prototype put together
6	Test out prototype on blackboards, prepare presentation	Tests finished
7	Present, write out improvement points for robot.

Deliverables

At the end of this project we aim to have a robot which is able to clean a blackboard automatically.

Task division

Name	Task
Dev
Geert	Mechanical design
Michiel
Merlin
Haochen

Time division

Week 1

Name	Total	Breakdown
Dev
Geert
Michiel
Merlin
Haochen

Week 2

Name	Total	Breakdown
Dev
Geert
Michiel
Merlin
Haochen

Papers:

Michiel:

paper 1: Prashanth Pai Manihalla, Yathin Krishna, Nagaraja Anand Naik, Naveen Kumar, Rakshith, Rakshith Billava Ramappa; Design and fabrication of an electromechanical system to clean the blackboard. AIP Conf. Proc. 20 May 2020; 2236 (1): 050006. https://doi.org/10.1063/5.0007099

paper 2: V. Mohanavel, C. Kailasanathan, T. Sathish, V. Kannadhasan, S. Vinoth Joe Marshal, K. Sakthivel, Modeling and fabrication of automatic blackboard dust remover, Materials Today: Proceedings, Volume 37, Part 2, 2021, Pages 527-530, ISSN 2214-7853, https://doi.org/10.1016/j.matpr.2020.05.487.

Geert:

T. Kusnur and M. Likhachev, "Complete, Decomposition-Free Coverage Path Planning," 2022 IEEE 18th International Conference on Automation Science and Engineering (CASE), Mexico City, Mexico, 2022, pp. 1431-1437, doi: 10.1109/CASE49997.2022.9926483.

Could be used for finding the optimal cleaning path without being too computationally intensive.

TIANLEI WANG, NANLIN TAN, et al; "Global-Equivalent Sliding Mode Control Method for Bridge Crane"

Could be used for controller if we decide to go the direction of cranes. Instead of wind resistance we can use the resistance of the cleaner against the blackboard. Unsure if still applicable when using two wires to hang something from, but should be fine.

C. -Y. Lin and T. -C. Hu, "Development and Locomotion Control of a Horizontal Ledge-Climbing Robot," 2021 7th International Conference on Control, Automation and Robotics (ICCAR), Singapore, 2021, pp. 60-64, doi: 10.1109/ICCAR52225.2021.9463324.

Interesting way to do locomotion on the top of the blackboard. Depending on execution might be widely usable, also over handles like in the lecture hall in Gemini-south.

Patent automatic blackboard cleaner: https://patents.google.com/patent/US3731335A/en

Spans the entire height of the board, not very adjustable.

Y. A. Maruthi 1 & S. Ramprasad 1 & N. Lakshmana Das 2; Trace Elemental Characterization of Chalk Dust and Their Associated Health Risk Assessment

Reason besides labor saving to make the robot: might prevent some chalk from going into the air. Would need scientifically supported better method of cleaning then.

Haochen:

1.intelligent and Automatic Blackboard Cleaning Nacgube

FENGYIBAO, RESIN XIAODAN, WU SONGZUE, XU HAO, SU HAILONG, FUMIN

(School of Mechanical Engineering, Tianjin University of Science & Technology, Tianjin 300222, China)

The design of a vertical column-shaped blackboard-erasing robot was demonstrated, which uses roller felt for cleaning and a dust collection module that uses static electricity to prevent dust from flyiny around.

2.M. Umbarkar, S. Kattitharayil, and F. Rozario, "Design & Fabrication of Smart Board Cleaner," International Research Journal of Engineering and Technology (IRJET), vol. 6, no. 4, pp. 1645-1650, Apr. 2019.

This is a design that divides the blackboard into four different areas, and has the function of connecting and controlling via mobile phone Bluetooth. Based on Arduino, it can be used as a reference.

3.V. A., N. Abinesh, J. Abiram, C. Abishack, and V. A. Kumar, "Design and Fabrication of Blackboard Cleaner," International Journal of Engineering Applied Sciences and Technology (IJEAST), vol. 5, no. 11, pp. 229-237, Mar. 2021.

This is a six-rod mechanism designed to imitate car wipers. Considering the long-standing successful design of car wipers, referring to this solution for improvement may make our design more eye-catching.