![]() ![]() ![]() I am assuming the SC is running on ram only? has no hard drive unless you put a SD card into it.Īlso you can limit your video cache to 2GB. However since my SC never keeps the right time, I always see the total amount of available storage each time I power it on since you go by that setting to get to time. This is another reason I have not tried to alter, or download other apps to the SC, due to limited amount of ram. I am interested in the OP's total amount of storage that is left. If the SC reaches a critical level of memory allocation, it should warn you long before it starts to kill DJIGo4. Irregardless, not a good software design, and needs a fix. Normal should be around 4GB or so of 11GB total. You can also check your SC under settings to see just how much memory/storage is being used. If there's someone out there that understands how to actually read these things (like maybe or or Walker or maybe you could help me figure it out. They all say something about a memory allocation error, like it was looking for a certain amount of memory but couldn't get it. The times of these files seem to correspond to the times of these DJI Go 4 crashes or stops. I looked through the files on the SD card that's in the SC, and found some log files in a "Crash" folder. Unfortunately it did not fix the problem. Since I posted the above, I did a factory reset on the Smart Controller and set it up again from scratch. Does anyone have any ideas? If I wanted to delete and reinstall DJI Go 4 on my SC, does anyone know how? I wondered if that could have something to do with the problem although I couldn't see why, so when I got home, I flew out of my backyard which I've done many times before, and had the same problem. The place I was flying at was a new one for me, and I noticed a large microwave tower nearby. When the app restarted, it looked like the altitude and distance were not correct but it otherwise worked as usual. While it was stopped, I still had full control and the RTH button on the SC still worked. It did restart and it seemed normal but soon stopped again. A message came on the screen saying that it stopped and there was a place to click to restart it. Yesterday, while flying, DJI Go 4 just stopped for no apparent reason. For instance, change the output controller name to Cnew.I have flown my Mavic 2 Pro with Smart Controller at least 50 times over the last few months with no problems. To do so, type a new variable name in the task summary line. You can save a controller design to use as a baseline for comparison while you experiment further with controller types, performance goals, and other settings. When you change controller settings, performance goals, or other tuning parameters, by default the task writes over the variable C. The task stores the controller using the variable name specified in the task summary line. Tune PID Controller automatically writes the tuned controller to the MATLAB® workspace as a pid, pidstd, pid2, or pidstd2 model object, whichever is appropriate for your controller settings. That example uses the PID Tuner app instead of the Tune PID Controller task in the Live Editor, but the behavior and effect of design parameters is the same in both tools. ![]() For an example that shows in more detail how you can use the sliders and other design parameters to improve disturbance rejection performance, see Tune PID Controller to Favor Reference Tracking or Disturbance Rejection (PID Tuner). You can now experiment again with controller parameters and observe their effect on disturbance rejection. ![]() The task expands to show the generated code. To see the generated code, click at the bottom of the task. The task automatically generates code to to tune a PID controller for the plant with the specified design goals. That example uses the PID Tuner app instead of the Tune PID Controller task in the Live Editor, but the behavior and effect of the sliders is the same in both tools. For an example that shows in more detail how the Response Time and Transient Behavior sliders affect controller performance, see Tune PID Controller to Favor Reference Tracking or Disturbance Rejection (PID Tuner). Experiment with the sliders again, observing the effect on the step response. You can now reduce the response time of the controller. In the Controller Type drop-down menu, select PID. Try switching to a PID controller to see if you can achieve a better response time. With a PI controller and this plant, it is difficult to decrease the response time without introducing instability or otherwise degrading system response. Experiment with the Response Time and Transient Behavior sliders to change the design targets and see their effect on the step response. The initial controller design has a rise time of about 1.5 seconds, with about 8% overshoot. ![]()
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