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LLM生成的控制信号 #50

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a1wj1 opened this issue May 8, 2024 · 4 comments
Open

LLM生成的控制信号 #50

a1wj1 opened this issue May 8, 2024 · 4 comments

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@a1wj1
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a1wj1 commented May 8, 2024

论文4.2中提到,LLM生成必要的控制信号,并预测给定指令是否完成。但是我在代码中的leaderboard/team_code/lmdriver_agent.py里面,看到好像只有使用预测的waypoints进行导航,而并没有用到LLM预测的控制信号。
请问可以帮忙解释一下论文中LLM和控制信号的关系和起到的作用吗?我一开始以为是LLM和其他模态输入之后直接生成控制信号控制车辆运动。

@deepcs233
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你好!

  1. 目前release的lmdriver_agent.py在一个阶段内只会有一个instruction出现,所以预测给定指令是否完成这个feature没有使用。在同时给多条连续指令时,这个预测会被采用
  2. 除了默认输入的instruction,之后每一帧输入的sensor data都会生成这一帧对应的控制信号,然后控制信号会控制车辆运动。下一帧同理。你的理解应该没问题

@a1wj1
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a1wj1 commented May 14, 2024

我理解的是,模型输出预测轨迹点,然后用pid进行控制,我看lmdriver_agent.py里面是不是没有同时给多条连续指令的情况?

@PhilWallace
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+1, 论文里是这么写的:“To get
the final control signal, which includes braking, throttling,
and steering, following LBC [4], we use two PID controllers
for latitudinal and longitudinal control to track the heading
and velocity of predicted waypoints respectively”

请问LLM的作用主要还是生成future waypoints,然后控制还是由PID做吗?

@a1wj1
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a1wj1 commented Jun 1, 2024

请问什么时候可以开源,LLM生成控制信号的lmdriver_agent.py,现在只看到是由pid控制的

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