25 Jan

I followed the following tutorials to get a crazyflie quadcopter set up and tested: https://www.bitcraze.io/documentation/tutorials/getting-started-with-crazyflie-2-x/ https://www.bitcraze.io/documentation/tutorials/getting-started-with-expansion-decks/ https://www.bitcraze.io/documentation/tu...

25 Jan

I had a Crazyflie assemble and tested in the lab: At firs, it was really hard to manual control and I made it died for lots of times: After lots of practise, I can finally manually control carzyflie quadrotor in a good way: Some observation and learning from this experiment: It was...

21 Jan

This quarter, we have more students joining our group. Now we have some new members: Lei Zhao, Yifei Chen, Hongyi Li, Pehuen. And old team members: Parth, Ethan. The old gitlab link is here We now post everything on public github: https://github.com/zhz03/209_project_Blimp_modelling Our week...

21 Jan

Last week, we got new machines for battery fabrication. Now we can created more delicate batteries, as shown in the attached figure. The voltage is about 1 V. However, the current methods can not guarantee the close contact between electrodes and filter paper, which caused extremely lagger resistanc...

18 Jan

Goal: Computational design of foldable robot system -- Computational design of foldable robot bodies, under mechanical specifications (e.g. loading condition) ---- Computational design of building plates in foldable robot bodies ------ Computational design of polygon (irregular-shapped plates)...

14 Jan

This week, I've been working on writing prospectus for my PhD oral exam while working on math for my work. For math, currently, since I want to make my motion planner deal with non-gaussian chance-constraints, I am trying to represent the non-gaussian distribution as the sum of gaussian distribution...

14 Jan

The basic fabrication porocess of the proposed printable battery is shown as the figure. We need to firstly combine the electrodes (Zinc or copper file with pouch sheet), which is completed by thermal lamination, resulting in composite electrodes. It is wotrhting noting that we need to cut a hole on...

14 Jan

This slides present the semantic core prolems and review four representative papers. Further, it told the main problems we met and the potential solutions to those problems. For a brief, the most thing we caring about is the uncertainty of detection or segmentation. Rather than discrete probabiliy...

13 Jan

Optimization-based SLAM From the pre-optimization (blue line) to the post-optimization (orange line), we can see that the optimization method enables the loop closure effect. The key improvement lies in the better computer vision techniques by discarding possibly erroneous keypoints. Also, the...

08 Jan

I am currently studying this paper On Solving the Irregularly-Shaped Plate Buckling Problem. "Traditional finite element theory assumes a set of displacement functions that are nodally based and minimizes the potential energy with respcct to the nodal coordinates." "The method of this pa...