【ICRA2019 AI Challenge Live Text Tutorial Session with Q&A】

a)        According to the tutorial, install the software dependencies, compile the robots packages and configure the udev rules on your onboard PC.
b)        Stay on manual mode for remote controller, run the roborts_base_node with Rviz under ROS. Use the remote controller to control the robot, and check if you can get the correct odometry and transform topics.
c)        If everything goes well, publish topics for gimbal or chassis control and switch remote controller to autonomous mode. Check if the robot moves correctly.

Here is some new information for the competition:

1.        In the mid-February, we will release detailed mechanical drawings about game field including projectile supplier and protective perimeter wall. And the wall of the projectile supplier will be attached with the certain marker.
2.        RoboMaster organization will not provide a standard simulator for the game this year.
3.        The communication between robots through the referee system is still under development and is supposed to finish on Mid-March. So teams had better build your own wireless communication link.
4.        We will be glad to hear from teams for the definition of robot illegal behaviours that would take advantage of loopholes in the rule but no more help the inspiration and development of technology. The rules will forbid such behaviours by common consent.

now we start answering questions.

Please send us any questions

问题一、关于补给站的问题：1. 能知道补给站的出弹速度吗？2. 手册里说：一分钟能接受任意一个机器人的两次补弹指令，指的是一个机器人两次，一共四次吗，还是一共两次？谢谢啦
A：1.  Yes, currently the time of supply for 50 projectiles is about 3 seconds.  
2.  2 times in total in 1 minute no matter how many robots get supplied.

问题三、关于比赛规则：在比赛规则的获胜条件中有一条：“一局比赛时间耗尽时，双方机器人尚且存活，伤害高的一方获胜”。伤害高的一方获胜是指剩余血量高的一方获胜？还是命中次数多的一方获胜？伤害来源不只是射击伤害，还有其他的扣血机制。这里伤害是指（初始血量-对方剩余血量），还是只指射击命中伤害？
A：The initial value minus the remaining blood is the damage caused to the enemy.

问题五、关于比赛规则：在淘汰赛中，上局比赛结束到下局比赛开始的时间间隔是多少？
A：After one game ends, it will jump to Five-Minute Setup Period of next game.

Q6、关于比赛规则：补给区的触发条件？补给时长？如果由补给装置发生卡弹造成子弹补给不足如何解决？
A: After the robot sends the command to the referee system, the supply station will start replenishing.

Q7\ Would mind to give some tips about when can we purchase manifold2 and referee system? And, how much are they?
A: Manifold2 will be on sales roughly in the middle of Feb. The referee system will be ready at the early March. Please pay attention to our latest announcement.