16 Oct

This week i fabricate a defender balloon. It's made of two sphere balloon while there is net between them.

12 Oct

I'm upgrading my 1d binary hypothesis testing algorithm to sampling based n-d binary hypothesis testing algorithm: Right now, I'm verifing a sub-function "sampling from probability distribution - nd" using the following verification flowchart: I've finished 1-d test, moving on to 2-d test. T...

12 Oct

For the past week, I mainly focused on paper writing. Firstly, I worked with Chang to revise the paper, titled 'Computational Design and Fabrication of Corrugated Mechanismsfrom Behavioral Specifications'. We plan to submit the paper to IROS with RAL option. On the other hand, I am revising...

12 Oct

This week, I compare two different motor configuration as shown below. The test is run under the setup: A commander controls the blimp to touch both sides of the wall and then go to its starting position, the time cost is recorded. Each configuration of the motors will be tested 10 times...

12 Oct

I implemented the preintegration techniques from this paper. In order to implement the preintegration, the underlying optmization problem structure is also change. To be precise, previously, we optimize all the IMU data point, but now we only optimize the keyframe. The trajectory plot show t...

08 Oct

Introduction What's the goal for this specific project? Building lightweight corrugation structures that satisfy stiffness requirement while optimize the weight (as low as possible). What have been accomplished so far and what will be accomplished? (1) We have developed easy-to-use analy...

07 Oct

This past week I have developed a framework for motor feedback control using IMU (orientation) data. I first wrote scalable motor control software for interfacing with the tb6612. A quick test operation can be seen below. Motor Test: Your browser does not support the video tag. I then integr...

07 Oct

In the past week, I did an experiment on controlling 2 blimps using Blynk app. The videos are shown as follows: The short version: The long version: The settings for two blimps are as follows: The Dolly fish has 4 small 12mm motors: 2 for horizontal control and 2 for vertical control ...

07 Oct

I was looking for ways to control the motors using peripheral hardware. I initially used Keyboard to control the motors. The input characters were sent to an ESP32 device (Master) via serial communication. The data was sent to another ESP32 device (Slave) connected to the motor drivers. I used a 2.4...

07 Oct

This week, I assemble the second blimp while I can switch the control between the two blimps using Blynk app. This is important because we have very limited number of commander while the number of blimps is at least the double of the number of commanders. Video: