Zihao’s E_Portfolio

 Spring 2023 Terms - 01.12.2023 DAY 1.0h (1.0h Autonomous flight; Photo Capture; Photo Capture)    PIC: Zihao Wang     Aircraft: DJI Mavic 2 Pro    Address: 2541 Cumberland Ave, West Lafayette, IN 47906  - 02.13.2023 DAY 1.5h (1.0h Free flight; 0.5-hour Emergency Procedure Practice)    PIC: Zihao Wang    Aircraft: DJI Mavic 2 Pro    Address: 1340 Cherry Ln, West Lafayette, IN 47907 (Turf Farm) - 03.04.2023 DAY 1.5h (1.0h Free Flight - Photo Capture; 0.5-hour Emergency Procedure  Practice )    PIC: Zihao Wang    Aircraft: DJI Phantom 3 Advanced    Address: E 5th St, Anderson, IN 46012 - 04.27.2023 Night 0.5h (0.5h Night flight for Strobe anti-collision light test)    PIC: Zihao Wang    Aircraft: DJI Mavic 2 Pro    Address: 1340 Cherry Ln, West Lafayette, IN 47907 (Turf Farm)

   The final design product of our 3D printing rotor arm:

FROM COMPUTER SKETCHES TO TO BE READY TO PRINT      The top view sketch of our top plate for the rotor arm (Including measures)    The top view sketch of our bottom plate for the rotor arm (Including measures)   The screenshot from NX (The upper plate of out rotor arm design).    The screenshot from NX (The lower plate (base) of out rotor arm design).  Both upper and lower structure are ready to be print out through our 3D Printer. Note:  Specific screw width and length are required. The rotor arm strength hasn't been tested, according to the design, this structure should have a relatively strong and high strenth, But will still need to handle and test with carefully.       

Zihao Wang - Purdue University - B.S. - Major in UAS - wang5184@purdue.edu - +1 (765)-838-9505 - LinkedIn:  https://www.linkedin.com/in/zihao-wang-80ba0b270/ - I am Zihao Wang, a Junior at Purdue University, majoring in Unmanned Aerial Systems. This E-Portfolio serves as an introduction to the coursework I have undertaken in the UAS AT-X09/19 classes.

       In this lab, We started to tear down the UAV assembled by the previous AT219 class. At the beginning of the task, we planned the mode of this disassembly work, and adjusted the disassembly sequence of the relevant parts, from the top GPS module At the beginning, to the power module and the aircraft body support module was disassembled in an orderly manner to complete the task most efficiently. Link to the complete tear-down instruction: https://docs.google.com/document/d/1kocC9ALMwzGT7RjDD5NvVFnpaMv7h0ZxY3hd0ykBo6A/edit?usp=sharing

 -UAS BVLOS-  In this lab, my team and I conducted basic operations beyond visual line-of-sight flight. This experiment is divided into 3X3X3 steps, that is, the cooperation between each pilot in command and the visual observer. The three crew members will each perform a test flight as a pilot. In each flight, the pilot in command must follow the visual observer's command to complete the observation of the three groups of targets, flying at three different altitudes and directions. Pictures have been taken of three flights of myself, listed in the following: 15 Feet Alt (1st flight)  5 Feet Alt Forward (2nd flight) 5 Feet Alt Backward (3rd flight) This chart shows my three flights as the pilot in command and the elapsed time for three target calibrations. Through the analysis of the time chart, the biggest difficulty in this lab is that the pilot in command cooperates with the visual observer's instructions when the low altitude & direction is opposite or confused. The nega

 Data Display         Table 1 shows the records of local wind data while we conduct UAS flying.         Wind velocity was gradually increased throughout the different altitude layers.          Table 2 is the battery level & efficiency dataset related to three variables, which                leads to the conclusion of higher-altitude aircraft have a better battery                              performance while also encountering a slightly higher wind velocity. This result was          not included the effects by battery cycles.

  Soldering Step By Step In this blog post, I am going to introduce the soldering we have done in our AT209 Lab. - With Record Notes Attached    1. Use the cleaning paste to properly clean the soldering tip.      Note: To make it shiny and clean. This removes the impurities on the surface.    2. Cut the wire cover with the wire stripper at 24 gauge.     Note: Strip for about 0.4 inches of the wire cover.    3. Twist the wire.    4. Tinning the wire.     Note: This makes the soldering of two wires easier. (To creat better contact pts on both wires.    5. After tinning. clean the soldering tip on a RO water-soaked sponge.     Note: RO water contains fewer minerals.    6. in Final soldering, the two wires need to be soldered into a smooth parallel surface, with not too much of the melted soldering.

    This blog focuses on DJI Mavic 2 pro "Attitude mode" (ATTI mode), including modifying, setting, and flying in actual scenarios. Introduction  - ATTI mode is a flight mode that during a situation when the aircraft does not receive GPS signal, ATTI mode will be activated automatically. For our pilot to get better used to the ATTI mode, we have to manually modify the aircraft, which allows us to manually switch between GPS positioning mode and ATTI mode without losing the GPS signals. In order to do that, we will need the DJI Assistant V1.1.2.  As we connect to the aircraft with the Assistant, Modification inside the Javascript for the system is required. This action will replace one of the original flight modes. In this case, we will select the Tripod mode, the least used mode among all the three. After Modified, SAVE. Flying - After we have done the software modification. We bring the aircraft to our turf farm for flying experiments. ⚠ Actions for emergency conditions need

  -Zihao- - Wang- - (UAS) Purdue SATT Undergraduate - 📞 +1-765-838-9505 - 📧 Wang5184@purdue.edu