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我是 NBC 编程的新手，我正在尝试对我的乐高 NXT 积木进行编程，以搜索并跟随我在地板上的一条黑色电工胶带（我的前面有光传感器并直接指向地面）。到现在为止，灯亮了，但机器人只是继续检查磁带而没有确认它。我还设置了它在撞到墙上时停下来转身，这是有效的。唯一不工作的就是当光线越过黑色胶带时确认并跟随黑色胶带。谁能看看我的代码并告诉我哪里出错了？

                                          dseg segment
  Switch sword 0
  Volume sword 0
  Level sword 0
  Distance sword 0
dseg ends

thread main
  SetSensorTouch(IN_1)    // touch sensor connected to IN_1
  SetSensorSound(IN_2)    // sound sensor connected to IN_2
  SetSensorLight(IN_3)    // Light Sensor connected to input 3
  SetSensorUltrasonic(IN_4) // Ultrasonic Sensor connected to input 4
  OnFwd(OUT_BC,80)     // move forward

CheckSensor:

  ReadSensor(IN_1,Switch)       // reads current value of sensor (0/1)
  brtst EQ, CheckSensor, Switch // branch to CheckSensor if Switch = 0
                              // i.e., exit the loop when Switch = 1


  OnRev(OUT_BC,40)      // move backward
  wait 500
  OnFwd(OUT_B,20)       // turn
  wait 500

  jmp CheckSound

CheckSound:
  ReadSensor(IN_2, Volume)
  brcmp GT, ExitCheck, Volume, 60

  jmp CheckSound

 ExitCheck:

 OnFwd(OUT_BC,60)

  jmp CheckLight

  CheckLight:
  ReadSensor(IN_3,Level)
  brcmp LT, CheckLight, Level, 60

  ReadSensorUS(IN_4,Distance)
  brcmp LT, EndPoint, Distance, 30

  OnFwd(OUT_C, 10)

  FindPath:
  ReadSensor(IN_3,Level)
  brcmp GTEQ, FindPath, Level, 60

  OnFwd(OUT_BC, 60)

  jmp CheckLight

  EndPoint:

  Off(OUT_BC)

  wait 1500



endt

在此处输入图像描述

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2 回答 2

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If this is the same NXT that I used, then you aren't getting anywhere soon. The light sensor in this kit is garbage, you have to just fiddle with what it considers "On" until it actually picks it up. I wish i had a better answer for you, but I've used these things for 4 years and never had it work exactly the way I want. I used the visual software that came with the kit, and it had an option to set how much was needed for it to be set, try looking for something similar.

于 2013-12-24T15:55:32.553 回答
0

如果你使用的是 NXT-G，有很多方法可以让你的代码对你的暗带做出反应。

最简单的（但对于您正在做的事情可能不是最好的）是在车轮“无限”转动时等待灯的读数低于某个值（当它检测到黑暗时）。您可以在底部的详细信息窗格中指定该值。

或者，您可以使用黄色传感器块从光传感器获取读数，并使用黄色数据线将该数字放入比较块中。然后，比较块将通过它的真/假输出数据线检查您的亮度是否足够暗。

使用电工胶带的提示：它有光泽！所以也许可以通过取消选中该框来关闭红灯，否则它只会反射光而机器人不会看到它。

于 2014-04-01T04:19:46.077 回答