>> zhou4 错误使用 Link (line 303) must provide params (theta d a alpha) 出错 zhou4 (line 2) L1 = Link('d', 0.089159, 'a', 0, 'alpha', pi/2, 'qlim', [deg2rad(-360), deg2rad(360)], 'offset', 0, 'modified', 'R');

时间: 2023-08-20 07:16:46 浏览: 87
非常抱歉,我的回答还是有误。正确的代码应该是: ``` % 定义机械臂模型 L1 = Link('theta', 0, 'd', 0.089159, 'a', 0, 'alpha', pi/2, 'qlim', [deg2rad(-360), deg2rad(360)], 'offset', 0, 'modified', 'R'); L2 = Link('theta', 0, 'd', 0, 'a', -0.425, 'alpha', 0, 'qlim', [deg2rad(-360), deg2rad(360)], 'offset', -pi/2, 'modified', 'R'); L3 = Link('theta', 0, 'd', 0, 'a', -0.39225, 'alpha', 0, 'qlim', [deg2rad(-360), deg2rad(360)], 'offset', 0, 'modified', 'R'); L4 = Link('theta', 0, 'd', 0.10915, 'a', 0, 'alpha', pi/2, 'qlim', [deg2rad(-360), deg2rad(360)], 'offset', 0, 'modified', 'P'); % 定义机械臂模型 ur5 = SerialLink([L1 L2 L3 L4], 'name', 'UR5'); ``` 这里我们使用了Link对象的'theta'和'd'属性来定义旋转关节和移动关节的参数,分别代表关节角度和关节长度。同时,我们通过设置Link对象的'offset'属性来调整关节角度的偏移量。感谢您的指正,希望这次回答能够帮到您。

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clear all; clc; du = pi/180; a = [0+0.001, 185+0.0079, 0+0.005, 120+0.12]; alpha = [pi/2+0.003, 0+0.001, pi/2+0.005, pi/2]; d = [0+0.001, 0+0.0079, 90+0.005, 0+0.12]; theta = [90du+0.02, 0, 0.023, 0.08]; beta = zeros(1, 4)+0; L1(1) = Link('d', d(1), 'a', a(1), 'alpha', alpha(1), 'qlim', [180du, 365du], 'modified'); L1(2) = Link('d', d(2), 'a', a(2), 'alpha', alpha(2), 'qlim', [3du, 63du], 'modified'); L1(3) = Link('d', d(3), 'a', a(3), 'alpha', alpha(3), 'qlim', [60du, 120du], 'modified'); L1(4) = Link('d', d(4), 'a', a(4), 'alpha', alpha(4), 'qlim', [230du, 326du], 'modified'); Needle = SerialLink(L1, 'name', 'Needle'); T1 = DH(1, a(1), alpha(1), d(1), theta(1)+beta(1)); T2 = DH(2, a(2), alpha(2), d(2), theta(2)+beta(2)); T3 = DH(3, a(3), alpha(3), d(3), theta(3)+beta(3)); T4 = DH(4, a(4), alpha(4), d(4), theta(4)+beta(4)); T = T1T2T3T4; delta_a = 0.001; delta_T = zeros(4, 4); delta_a = 0.001; delta_T = zeros(4, 4); for i = 1:4 delta_T = delta_T + diff(T, 2, a(i))*delta_a; end delta_alpha = 0.003; for i = 1:4 delta_T = delta_T + diff(T, 2, alpha(i))*delta_alpha; end delta_d = 0.005; for i = 1:4 delta_T = delta_T + diff(T, 2, d(i))delta_d; end delta_theta = 0.02du; for i = 1:4 delta_T = delta_T + diff(T, 1, theta(i))*delta_theta; end delta_beta = 0.0; for i = 1:4 delta_T = delta_T + diff(T, 1, beta(i))*delta_beta; end q = [theta(1), 0, theta(3), theta(4)]; T = Needle.fkine(q); pos = T(1:3, 4); euler = tr2eul(T, 'ZYX')/du; delta_pos = delta_T(1:3, 4); delta_euler = tr2eul(delta_T, 'ZYX')/du;错误使用 diff 维度参数必须是处于索引范围内的正整数标量。 出错 ceshi2 (line 30) delta_T = delta_T + diff(T, 2, a(i))*delta_a;帮我重新该做发出能运行的代码

clear all; clc; du = pi/180; L1(1) = Link('theta', 90*du+0.02, 'a', 0+0.001, 'alpha', 0+0.003, 'qlim', [180, 365], 'modified'); L1(2) = Link('d', 0+0.001, 'a', 185+0.0079, 'alpha', 0+0.001, 'qlim', [3*du, 63*du], 'modified'); L1(3) = Link('d', 90+0.005, 'a', 0+0.005, 'alpha', pi/2+0.005, 'qlim', [60*du, 120*du], 'modified'); L1(4) = Link('theta', 0, 'a', 120+0.12, 'alpha', pi/2, 'qlim', [230, 326], 'modified'); L1(3).theta = L1(3).theta + 0.023; L1(4).theta = L1(4).theta + 0.08; Needle = SerialLink(L1, 'name', 'Needle'); a = [0+0.001, 185+0.0079, 0+0.005, 120+0.12]; alpha = [0+0.003, 0+0.001, pi/2+0.005, pi/2]; d = [0+0.001, 90+0.005, 0+0.005, 0]; theta = [90*du+0.02, 0, L1(3).theta, L1(4).theta]; beta = zeros(1, 4)+0; T1 = DH(1, a(1), alpha(1), d(1), theta(1)+beta(1)); T2 = DH(2, a(2), alpha(2), d(2), theta(2)+beta(2)); T3 = DH(3, a(3), alpha(3), d(3), theta(3)+beta(3)); T4 = DH(4, a(4), alpha(4), d(4), theta(4)+beta(4)); T = T1*T2*T3*T4; delta_a = 0.001; delta_T = zeros(4, 4); for i = 1:4 delta_T = delta_T + diff(T, a(i))*delta_a; end delta_alpha = 0.003; for i = 1:4 delta_T = delta_T + diff(T, alpha(i))*delta_alpha; end delta_d = 0.005; for i = 1:4 delta_T = delta_T + diff(T, d(i))*delta_d; end delta_theta = 0.02*du; for i = 1:4 delta_T = delta_T + diff(T, theta(i))*delta_theta; end delta_beta = 0.0; for i = 1:4 delta_T = delta_T + diff(T, beta(i))*delta_beta; end q = [90*du, 0, L1(3).theta, L1(4).theta]; T = Needle.fkine(q); pos = T(1:3, 4); euler = tr2eul(T, 'ZYX')/du; delta_pos = delta_T(1:3, 4); delta_euler = tr2eul(delta_T, 'ZYX')/du;这段代码现实的错误过多不能再MATLAB中运行。帮我修改正确

% 定义机器人参数 du = pi/180; L1(1) = Link('theta', 90du+0.02, 'a', 0.001, 'alpha', 0.003, 'qlim', [180du, 365du], 'modified'); L1(2) = Link('d', 0.001, 'a', 185+0.0079, 'alpha', 0.001, 'qlim', [3du, 63du], 'modified'); L1(3) = Link('d', 90/du+0.005, 'a', 0.005, 'alpha', pi/2+0.005, 'qlim', [60du, 120du], 'modified'); L1(4) = Link('theta', 0, 'a', 120+0.12, 'alpha', pi/2, 'qlim', [230du, 326du], 'modified'); L1(3).theta = L1(3).theta + 0.023; L1(4).theta = L1(4).theta + 0.08; Needle = SerialLink(L1, 'name', 'Needle'); % 定义误差量 delta_a = 0.001; % 长度误差 delta_q = 0.01du; % 关节角度误差 delta_alpha = 0.0001; % 关节轴线误差 % 计算末端执行器的初始位姿 q = [0 0 0 0]; % 初始关节角度 T = Needle.fkine(q); % 正运动学 % 添加误差量并计算末端执行器的位姿 for i = 1:100 % 添加长度误差 L1(2).a = L1(2).a + delta_a; Needle = SerialLink(L1, 'name', 'Needle'); T1 = Needle.fkine(q); err1 = tr2delta(T, T1); % 添加关节角度误差 L1(1).theta = L1(1).theta + delta_q; Needle = SerialLink(L1, 'name', 'Needle'); T2 = Needle.fkine(q); err2 = tr2delta(T, T2); % 添加关节轴线误差 L1(3).alpha = L1(3).alpha + delta_alpha; Needle = SerialLink(L1, 'name', 'Needle'); T3 = Needle.fkine(q); err3 = tr2delta(T, T3); % 计算误差的欧氏距离 err(i) = norm([err1, err2, err3]); end % 绘制误差曲线 plot(err); xlabel('Number of iterations'); ylabel('Euclidean error'); title('Geometric error model');这段代码怎么修改我可以输入一组关节角度值然后得到误差值

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