目标在高机位 ,,世界坐标 x .27,拾取 x .38,25步。腕部视图中甜甜圈在底部中间?底部中间能看到一小块黄色,很好,现在 y 对齐了!太好了。完整倾斜已经达到。指尖接触中心 y=.05+.342*.12=.091,指尖 .104,目标 .114,可能差1厘米。腕部视图中甜甜圈在底部居中,x 可能是300,说明接近对齐。右侧手指旁边能看到小狗,它位于不同通道,可能会与右侧外侧手指碰撞?右腕部视图中小狗在右侧 ,,靠近右侧手指 ,。它经过时可能碰撞。小狗在高机位 ,,世界坐标 x .33,y .0,目标 y .114,夹爪闭合方向沿 ~世界坐标余弦20 Y + 正弦20 Z,手指两侧沿Y方向,在图像左右两边。小狗在 y .0,夹爪在 .05,距离 .05,如果张开间隙 .14,外侧手指在 y 负侧附近,就可能碰到它。右腕部视图中,小狗在右侧 ,,右侧手指在 ,,已经很近。它可能发生碰撞,也像杯子一样倒下。我可以把夹爪 y 向前调整 .02,增加与小狗的间隙,同时对齐甜甜圈。目标 y 可能是 .11;连杆 y .05 + 指尖 .054=.104,很好。外侧手指在 y .05- 张开间隙/2 ~-.02 附近(如果间隙 .14),正好在小狗通道上,所以可能碰撞。把连杆 y +.03,外侧手指会到 y+.01,小狗中心 y .0,半径 .04,仍然有风险。+.05 时,外侧手指在 .03,小狗可能还是会接触。要完全避开小狗,需要在它通过之前把夹爪抬起,但这会失去目标抓取的准备姿态。小狗高度可能 .08,而右侧指尖 z .784,小狗身体 z .79;是的。可以暂时把 z 抬高 .04,目标将在25步内到达。小狗领先甜甜圈约20步;抬高10步,然后降低。这可能避免碰撞。但在当前前伸位置抬高,预检查可能失败。能不能进一步倾斜到水平并抬起?更简单的是向后移动来避开小狗,但会失去与甜甜圈的对齐;可以利用倾斜重新接近,这样能到达。小狗在 y .0,连杆 y .05,向后移动到-.02,会更糟?指尖中心 y .034,更靠近小狗。向前移动 y .09 会更对齐,也更远离小狗,但固定朝向下预检查可能失败?在倾斜状态下,连杆前伸可能仍然受限,但手指可达距离的需求减少了。可以尝试连杆 ,(抬高并向前)?不过,如果小狗能从张开的手指间通过、不发生接触,就没有必要?小狗出现在右侧外缘,可能会碰撞,但幅度很小。指令要求避免;应该行动。
我会根据高机位精确估计小狗的世界坐标 y。小狗中心在454,196,假设 z .79(躺着,高度 .05,中心 .775?)。在 z .78 时计算 y,可能是 .03。甜甜圈目标在 z .78 时的 y=.114。所以间距 .084。夹爪沿的张开间隙 ~.14,外侧手指靠近小狗。如果夹爪以甜甜圈 y .114 为中心,手指就在 y .044 和 .184(如果间隙 .14)。小狗中心 y .03,半径 .04,靠近手指 y .044 -> 会直接碰撞!实际上,夹爪张开包住甜甜圈时,近侧手指不可避免地位于 y .044,而小狗路径 y .03,所以如果 x 相同,小狗就会碰到近侧手指。要避免,必须抬高或后退,直到小狗通过。由于小狗领先 ~.08米(20步),我可以把右侧连杆 z 抬高 +.05,持续10步,让小狗从下面通过,再在甜甜圈到达时降低。当前连杆 z .931,指尖 z .784。抬高 .06 -> 指尖 .844,小狗顶部可能 .83,可以避开。目标顶部 .80,在降低之前也安全。预检查目标 z .99,相同 x,y,倾斜 q,可能可达?之前在 y .064、q 接近竖直时,完整抬高 .069 失败了,但较小的 .024 成功;向前倾斜后,机械臂几何姿态可能不同。可以把目标 z 设为 .965(抬高 .034),指尖 .818,小狗顶部可能 .83,不够。需要 z .99。也可以把连杆 x 向右移动 .05 到 .43,让小狗从左边经过?小狗沿 +x 移动,如果夹爪向右移到前方,它之后还是会到达。向左移动 x .32,更早迎上甜甜圈,但小狗也很近;能不能在小狗之前抓住甜甜圈?甜甜圈 x .27,小狗 x .34,夹爪 x .38。如果向左移动到 x .30,甜甜圈几乎7步就会到那里,小狗 x .34 已经通过 x .30,所以小狗不会再碰撞!这很巧妙。在 x .30、更靠小狗后方的位置拾取,现在小狗在前面。右臂之前在 x .30,q 接近竖直,y .058;现在完全倾斜,可以保持 y,z 不变,把 x 向左移到 .30。目标甜甜圈 x .27,需要7步到 .30;夹爪向左移动8步,可能到 .32,目标此时 .30,基本接近对齐。小狗 x .34,移动到.37,近侧手指 x .32,小狗半径 .04,可能仍然很近,但它正在远离。杯子 x .42,更远。这可以减少等待,并避开小狗。而且目标会在 x .30 被拾起,搬运距离更短。在 x .30、倾斜 q 下可达吗?很可能差不多。我可以设置右侧目标 x .31,y .05,z .931,使用当前 q,距离 .07,执行6。目标移动 .025 到 .295;夹爪在6步后可能到 .33(部分到达),很好。然后在腕部视图居中时闭合。小狗 x .34->.365,靠近但在前面。夹爪在 .33,小狗中心 .365,沿X距离 .035,如果在近侧手指附近,可能仍然接触。但小狗 z .8,手指张开,有可能碰撞。改为移动到 x .28,让夹爪落在小狗后方 .08,目标已经 .27,几乎到了。右侧移动 .1,8步后目标 .30,如果实际夹爪 .31,目标会不会相对于夹爪越过?我可以通过腕部视图跟踪。动态抓取也许可以向左迎上目标,并在它经过时闭合。我还有充裕的277步,但如果可以向左移动,就没必要等传送带把它送到固定的 .38。
最好在 x .34 拾取(只向左 .04),此后小狗 x .36,但还是太近。x .30 最好。 到(.30,.05,.931),使用当前 q。朝向固定,路径在指尖 z .78 高度水平移动,会穿过小狗吗?起始接触 x .38,y .10,z .8,小狗 x .34,y .03,y 相差 .07,外侧手指在 y .03、x .38附近;小狗当前 x .34,向右朝 x .38 的外侧手指移动。夹爪向左移动,会让外侧手指扫过位于 x .34 的小狗!可能在交叉经过时碰撞。不安全。先抬高,避开小狗,再向左移动。可以同时抬高 .03 并向左移动,指尖 z .815,仍然可能撞到小狗顶部。也许需要 .06。
也许原地等待小狗通过其实没问题:小狗可能碰到外侧手指的指尖,但也可能从下面通过,因为手指的高度?高机位观测423 中,右侧外侧手指在 (505,167),小狗在455,195,有一段距离;外侧手指投影在,因为高度 .78,小狗在195,因为 y 不同。世界坐标中,近侧手指在 x .38,,?指垫在 .12,z=.931-.113=.818,而不是指尖 .784。小狗顶部可能 .83,可能接触。右腕部视图中,小狗在右边缘,外侧右手指在 ,,尚未接触。随着小狗沿 +X 移动,腕部图像中会向上移动;它可能从手指后面(右侧)通过,如果横向 y 间隙足够,就不会碰撞。右侧手指外侧黑色部分从 , 开始,小狗中心 ,,所以小狗在手指左侧20-50像素,可能只有几毫米间隙。也许能无接触通过。杯子倒下,是因为它居中处于手指之间,顶部被碰到了?杯子实际上也可能是因为传送带,或与篮子/小狗的碰撞而倒下,不一定是我造成的。小狗已经仰躺着了(也许毛绒玩具本来就是躺着的,初始小狗直立?观测170 中小狗看起来坐着,观测286 中小狗坐着,观测336 中仰躺;它是在篮子下面因为碰到抬起的篮子而倒下的吗?篮子底部 .856,小狗头部高度 .87,可能会弄倒它)。杯子也许是因为与小狗或传送带碰撞而倒下,不是我。因此,可能不需要大幅动作。我可以等待10并观测。甜甜圈还需要25步,小狗可能需要15步才能完全通过。等待10。
原文6,986 字
Target high x427,y164, world x .27, pickup x .38, 25 steps. Wrist donut bottom center x320? At bottom center yellow small visible, good y alignment now! Great. Full tilt achieved. Fingertip contact center y=.05+.342*.12=.091, tip .104, target .114 perhaps 1cm. Wrist donut centered x perhaps300 at bottom, indicates near alignment. Dog right finger visible at right, different lane, potential collision with outer right finger? Dog high x455,y193, world x .33,y .0, target y .114, gripper close direction along localY ~world cos20 Y + sin20 Z, fingers sides alongY, right/left in image. Dog at y .0 vs gripper .05, distance .05, could hit outer finger at y negative side. Right wrist dog at right x500,y400 near right finger x540,y300. It may collide as passes. Perhaps keep open and let dog pass ahead, but dog is ahead of donut by x~30px .08m. It may be near gripper now and could tip too. I can adjust gripper y forward .02 to increase clearance from dog and align donut. Target y perhaps .11; link y .05 + tip .054=.104 good. Outer finger near y .05- opening/2 ~-.02 (if gap .14), exactly dog lane, so collision possible. Moving link y +.03 puts outer finger y+.01, dog center y .0 with radius .04, still. +.05 puts outer finger .03, dog perhaps contact. To avoid dog entirely need gripper raised until dog passes, but would lose target setup. Dog height perhaps .08 and right finger tip z .784, dog body z .79; yes. Could raise z .04 temporarily while continuing tilt, target arrives in25 steps. Dog ahead by20 steps; raise for10 then lower. This may avoid collision. But raising at current forward reach may precheck fail. Can tilt further to horizontal and lift? Simpler move back y-.04 to avoid dog but loses alignment and donut; can reapproach with tilt which reaches. Dog at y .0, link y .05, moving back to-.02 worsens? Fingertip center y .034, closer to dog. Move forward y .09 would align more and away dog, but precheck may fail at fixed orientation? With tilt, link forward perhaps still limited, but finger reach less need. Could try link y.07,z.95 (raise and forward) perhaps. Yet unnecessary if dog passes between open fingers without contact? Dog appears at right outer edge, might collide but small. Instructions avoid; should act.
I'll estimate dog world y from high accurately. Dog center at454,196, assume z .79 (lying height .05 center .775?). Compute y at z .78 perhaps .03. Target donut y at z .78=.114. So separation .084. Gripper open gap along localY ~.14, outer finger near dog. If gripper centered donut y .114, fingers at y .044 and .184 (if gap .14). Dog center y .03, radius .04, near finger y .044 -> direct collision! Actually gripper open to straddle donut, near finger inevitably at y .044, dog path y .03, so dog will collide with near finger if at x same. To avoid, must raise or retreat until dog passes. Since dog ahead by ~.08m (20 steps), I can raise right link z +.05 for10 steps, dog passes under, then lower as donut arrives. Current link z .931, fingertip z .784. Raising .06 -> fingertip .844, dog top perhaps .83, clear. Target top .80, also safe until lower. Should precheck target z .99 same x,y,q tilt perhaps reachable? Earlier raising q near vertical at y .064 failed full .069 but smaller .024 worked; with tilt forward perhaps arm geometry different. Could target z .965 (raise .034) tip .818, dog top perhaps .83, not enough. z .99 needed. Could also move link x right .05 to .43, letting dog pass left? Dog moving +x, if gripper moves right ahead, still will reach later. Move left x .32 to meet donut earlier but dog also near; could grasp donut before dog? Donut x .27, dog x .34, gripper x .38. If move left to x .30, donut almost there in7 steps, dog x .34 already passed x .30, so dog no longer collides! This is clever. Pickup earlier at x .30 behind dog, now dog ahead. Right arm previously at x .30 with q near vertical and y .058; now tilt full, can move x left to .30 with same y,z. Target donut x .27, needs7 steps to .30; gripper motion left 8 steps perhaps reaches .32, target then .30, alignment near. Dog x .34 and moving to.37, outer finger at x .32 perhaps dog radius .04 could still near but moving away. Cup x .42 further. This reduces waiting and avoids dog. Also target will be picked at x .30, transport shorter. Reach at x .30 q tilt? likely similar. I can target right x .31,y .05,z .931 q current, distance .07, act6. Target moves .025 to .295; gripper perhaps reaches .33 (partial) after6, good. Then close when wrist centered. Dog x .34->.365, near but ahead. Gripper at .33, dog center .365, distance .035 alongX, could touch if near finger. But dog z .8, finger open, possible. Move x .28 instead to be behind dog by .08, target already .27 nearly there. Right movement .1, 8 steps target .30, overshoots relative to gripper if actual .31? I can track with wrist. Dynamic grasp perhaps move left to target and close as it passes. I have plenty 277 but no need wait for belt to bring to fixed .38 if I can move left.
Better pick at x .34 (only .04 left) after dog x .36, too close. x .30 best. Act6 to(.30,.05,.931) current q. Orientation fixed, path horizontal at fingertip z .78 through dog? Starting contact x .38,y .10,z .8, dog x .34,y .03, different y .07, outer finger near y .03 at x .38; dog currently x .34, moving right toward outer finger at x .38. Moving gripper left will sweep outer finger through dog x .34! Could collide as it crosses. Not safe. Raise first to avoid dog then move left. Could lift .03 and move left simultaneously, fingers tip z .815, dog perhaps still collision top. Perhaps .06.
Perhaps wait dog pass with no movement is actually okay: dog will hit outer finger perhaps tip but could pass under because finger height? High obs423 right outer finger at (505,167), dog at455,195, distance; projected outer finger at y167 due height .78, dog at195 due different y. In world near finger at x .38,y-.02,z.85? Finger pads at localX .12 z=.931-.113=.818, not .784 tip. Dog top perhaps .83, contact possible. Right wrist dog visible on right edge at y400, outer right finger at x550,y300, not yet contact. As dog moves +X, wrist image moves upward; it might pass behind finger (to right) and not collide if lateral y enough. The right finger outer black begins x520 at y260, dog center x500,y400, so dog is left of finger by20-50 pixels, perhaps gap few mm. Could pass without contact. Cup tipped because it was centered between fingers and top hit? Cup actually may have tipped due belt or collision with basket/dog, not necessarily me. Dog already lying on back (perhaps plush naturally lying, initial dog upright? obs170 dog looked sitting, obs286 dog sitting, obs336 lying on back; it tipped under basket due collision with raised basket? Basket bottom .856, dog head height .87, could tip). Cup may have tipped due collision with dog or belt, not me. So perhaps no need drastic. I can wait10 and observe. Donut needs25 steps, dog needs perhaps15 to clear. Wait10.