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自动驾驶汽车偏离路中心多远?

  • 2026-08-12 19:32:24
自动驾驶汽车偏离路中心多远?

自动驾驶汽车偏离路中心多远？

通过齐次坐标转换，相对坐标系下的y就是偏离值，且带符号，指示到底往哪边偏了。

这不一定是工程上最好的方案，但可以看出坐标转换的价值与意义。从某种角度看，线性代数的几何视角大部分就是坐标转换。一个坐标系下不方便处理，那就先转到另外一个坐标系下处理，处理结束后再转回来。

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  1. CONNECT:[ UseTime:0.001009s ] mysql:host=127.0.0.1;port=3306;dbname=e_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001507s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000651s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000610s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001216s ]
  6. SELECT * FROM `set` [ RunTime:0.000588s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001473s ]
  8. SELECT * FROM `article` WHERE `id` = 544701 LIMIT 1 [ RunTime:0.001030s ]
  9. UPDATE `article` SET `lasttime` = 1786596771 WHERE `id` = 544701 [ RunTime:0.002089s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 67 LIMIT 1 [ RunTime:0.000681s ]
  11. SELECT * FROM `article` WHERE `id` < 544701 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000990s ]
  12. SELECT * FROM `article` WHERE `id` > 544701 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.001070s ]
  13. SELECT * FROM `article` WHERE `id` < 544701 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.002549s ]
  14. SELECT * FROM `article` WHERE `id` < 544701 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.001712s ]
  15. SELECT * FROM `article` WHERE `id` < 544701 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.001911s ]
0.182535s