- Видео 16
- Просмотров 36 992
LCats FLL
Добавлен 27 ноя 2018
Automatic Attachment Detachment for the FLL Robot Game
Attachments are needed to perform missions in the FIRST LEGO League robot game. But when a robot performs multiple missions per trip, it can be helpful to automatically drop off an attachment before starting the next mission. In this video FLL team LCats shows how their robot drops off attachments three times in the City Shaper robot game.
Просмотров: 886
Видео
LCat Latch for Quick Attachment Changeout in the FLL Robot Game
Просмотров 3744 года назад
The LCat Latch is used for quick attachment changeout on FIRST LEGO League robot arms. FLL team LCats describes their design and use of the LCat Latch for use in the FLL robot game.
500 Points City Shaper FLL Robot Game
Просмотров 5994 года назад
The LCats team robot scores 500 points in the robot game that they will run at the FIRST LEGO League City Shaper World Festival.
PID Control with Feedforward for Advanced EV3 Programming
Просмотров 1,7 тыс.4 года назад
PID control with feedforward makes PID control work better when there is a known offset such as a steering offset. This video describes PID control with feedforward and shows how to program an EV3 MyBlock for PID control with feedforward. An example is demonstrated from our FIRST LEGO League City Shaper robot game, where it helped our robot complete a mission.
450 Points City Shaper FLL Robot Game
Просмотров 3,3 тыс.5 лет назад
The LCats team robot performs a 450 point run of the FIRST LEGO League City Shaper robot game.
Advanced Line Follower with PID Control and Left-Right Options
Просмотров 2,3 тыс.5 лет назад
This video describes an advanced line follower MyBlock that provides accurate EV3 robot line following with PID control and options for using the left or right color sensors.
Simple Turn-In-Place for EV3 Robots using the Gyro Sensor
Просмотров 1,7 тыс.5 лет назад
This video describes a simple Turn-In-Place MyBlock that provides accurate EV3 robot turning using the gyro sensor.
Simple PD Line Follower for EV3 Robots using the Color Sensor
Просмотров 3,3 тыс.5 лет назад
This video describes a simple line follower MyBlock that provides accurate EV3 robot line following using the color sensor with proportional and derivative control.
Turn-In-Place EV3 MyBlock with Gyro Sensing and Acceleration for FLL
Просмотров 2,1 тыс.5 лет назад
This video describes how to program an accurate Turn-In-Place MyBlock that uses the Gyro sensor to measure how far the robot has turned and acceleration to make it it turn smoothly. It allows for both relative and absolute turns.
Advanced Straight Drive EV3 MyBlock using Acceleration and Gyro Sensor PID Control
Просмотров 2,9 тыс.5 лет назад
This straight drive MyBlock combines acceleration for smooth acceleration and deceleration and PID control of the Gyro sensor angle to provide highly accurate fast straight drives.
Master Program for Fast FLL EV3 Mission Selection
Просмотров 1,5 тыс.5 лет назад
A Master program allows you to quickly select a mission program, or trip, on your EV3 brick, which can save you a lot of time in the FLL robot game. It automatically increments to the next trip when a trip completes so you only need to select the middle button to start the next trip. No more searching for your next trip program to run!
PID Control EV3 MyBlock with Gyro Straight Drive and Color Sensor Line Follower Examples
Просмотров 9 тыс.5 лет назад
PID (proportional, integral, and derivative) control can make your sensor-based motion more accurate. Providing PID control in a MyBlock can make using PID control easier in many programs. This video describes a PID control algorithm, shows how the PID control EV3 MyBlock is programmed, and demonstrates the use of the PID control MyBlock for straight drive using the gyro sensor and line followi...
FLL Robot Jigs, Frame, and Side-wheels for Alignment
Просмотров 2 тыс.5 лет назад
Jigs, a frame around your robot, and side-wheels can help align your FIRST LEGO League robot against the table walls during the robot game. The LCats team designs and strategy for using jigs, a robot frame, and side-wheels are described in this video.
Advanced Acceleration for EV3 Driving and Turning
Просмотров 3,2 тыс.5 лет назад
Acceleration allows your robot to drive and turn smoothly. An advanced acceleration algorithm is described and the MyBlock is built and demonstrated for driving and turning.
LCats FLL Into Orbit 220 Point Robot Game December 8, 2018
Просмотров 6885 лет назад
The LCats team practices the Into Orbit robot game the night before their 2018 Los Angeles Region Championship Tournament.
LCats 2018 FIRST LEGO League Presentation
Просмотров 1,3 тыс.6 лет назад
LCats 2018 FIRST LEGO League Presentation
Could you convert that code to EV3 classroom?
are u able to share your myblock ?
wow amazing. thanks for sharing!
Awesome explanation and presentation. Good memories from when my kids did FLL and implemented their PID controller on a Mindstorms brick. There is a good way to come up with the Kp, Ki and Kd values described in a document called "A PID Controller For Lego Mindstorms Robots" by J Sluka. That works beautifully, something for another video.
how to create "pidcontrol" block...because i don't see u create this block in you video
could you send me the program for acceleration to my email:slahsaadlaoui@gmail.com thanks
FLL CITY SHAPER ruclips.net/video/A_QIozIk57I/видео.html
What's your whatsapp number
Worlds got canceled :(
Can you make a line squaring code
Can you make a line squaring tutorial
Why we put black on left number 1
And why in false case you put it -1
Could you download this code?
bullshit, what is the ratio of PID, it is even not good compare to the simple gyro
You better use www.aliexpress.com/i/33055628809.html wheels. They give robot more friction.
We are a FIRST LEGO League team and have to use LEGO-made parts.
really good ,awesome
have you guys tested this with sharper curved turns
We only follow straight lines for the FIRST LEGO League robot game.
We tested with sharp curves and it worked well.
Cool program controlling on the table. My team will code this too, thank you for this idea. Why you reset the Gyro Sensor without Wait-Block? You reset the Gyro and then use the next block. It is better to place after the Gyro-Reset a Wait-Block to wait until Gyro delivers zero. Sometimes the reset need a bit longer to perform. So you are sure the Gyro is really at 0.
Thanks for the suggestion.
Brilliant!!!!!
Only
Make a video of acceleration and p id
Helped me a lot thanks!
Very clever,
wow... blown away. good luck this year!
WOW. I have been doing this for 12 years as a coach and have never heard of this till now. You are brilliant! Good luck at the competitions! Questions - 1. I'm assuming you would have to tune the PID controller differently for each robot. Do you have a video on how to tune? Does that PID work with any robot? 2. The PID program - do you use the same program (myblock) over and over again for every move and sensor block? Or do you only have to do it once in the beginning? pxifdesign@gmail.com or girolamoth@baldwinschools.org
I sent you an email, but I'll reply here also. Our approach to PID tuning: 1) set proportional gain so robot follows the setpoint with some weaving back and forth. If there is a constant offset so the average error is non-zero the add some integral gain. Add derivative gain to reduce the amplitude of the weaving back and forth. Then refine the gains such as playing with the proportion and derivative gains. We were surprised after using one set of gains for line following for months and then Kimmy was playing around with the gains and found that a much higher derivative gain helped a lot. Then we also increased the derivative gain for straight drive.
We hope to make a PID tuning video after our Qualifying Tournament next weekend. You need to tune the PID controller differently for each robot and each application. We use the same PID control MyBlock for all applications. The girls just programmed it once and use it many times without any changes - which is why it needs the various input parameters that allow us to change the behavior of the PID control without changing the MyBlock. We use PID control using the gyro sensor and one set of PID gains for our StraightDrive MyBlock. We use PID control using a color sensor and use a different set of gains for the LineFollower MyBlock.
Thank you for your explaining the PID program, can u explain more details of no loop My email ( rulaabuodeh@ gmail.com ) I’ll be thankful
Very compact, did you programme in a derivative value aswell, although you getting really good results
Paul, yes we found that derivative helps a lot - it especially makes the robot follow the line closer. It also helps with straight drive. We plan on making a PID tuning video to explain.
Great work LCats!!!
So proud of my Granddaughter
I literally have no idea what any of this stuff means XD
Meow