Vizzy Denavit–Hartenberg parameters: Difference between revisions

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<table border=0><tr><td align="center">
<table border=0><tr><td align="center">
{| class="wikitable" style="text-align: center"
{| class="wikitable" style="text-align: center"
| style="background:#d0d0d0;" colspan="6" | Head center
| style="background:#d0d0d0;" colspan="7" | Head center
|-
|-
| style="background:#f0f0f0;"|'''Link'''
| style="background:#f0f0f0;"|'''Link'''
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| style="background:#f0f0f0;"|'''theta'''
| style="background:#f0f0f0;"|'''theta'''
| style="background:#f0f0f0;"|'''D'''
| style="background:#f0f0f0;"|'''D'''
| style="background:#f0f0f0;"|'''min/max'''
| style="background:#f0f0f0;"|''' '''
| style="background:#f0f0f0;"|''' '''
|-
|-
| 0||Pi/2||0||0||0||virtual link
| 0||Pi/2||0||0||0||0/0||virtual link
|-
|-
| 1||Pi/2||0||0||0||M0 → M1
| 1||Pi/2||0||0||0||-20/20||M0 → M1
|-
|-
| 2||Pi/2||0||0||-0.37||M1 → M2
| 2||Pi/2||0||0||-0.37||-53/53||M1 → M2
|-
|-
| 3||Pi||0.13221||19*Pi/17||0||M2 → M3
| 3||Pi||0.13221||19*Pi/17||0||-18/37||M2 → M3
|}
|}


Revision as of 14:48, 4 January 2012


Head center
Link alpha R theta D min/max
0 Pi/2 0 0 0 0/0 virtual link
1 Pi/2 0 0 0 -20/20 M0 → M1
2 Pi/2 0 0 -0.37 -53/53 M1 → M2
3 Pi 0.13221 19*Pi/17 0 -18/37 M2 → M3
Inertial sensor
Link alpha R theta D
0 Pi/2 0 0 0 virtual link
1 Pi/2 0 0 0 M0 → M1
2 Pi/2 0 0 -0.37 M1 → M2
3 Pi 0.13221 -0.2611*Pi 0 M2 → M3
4 Pi/2 0 0.7389*Pi 0 M3 → Inertial sensor
Right eye
Link alpha R theta D min/max
0 Pi/2 0 0 0 0/0 virtual link
1 Pi/2 0 0 0 -20/20 M0 → M1
2 Pi/2 0 0 -0.37 -53/53 M1 → M2
3 Pi 0.13221 19*Pi/17 0 -18/37 M2 → M3
4 -Pi/2 0 2*Pi/17 -0.111 -38/38 M3 → M4
5 0 0.05 0 0 -38/38 M5 → End-effector
Left eye
Link alpha R theta D
0 Pi/2 0 0 0 virtual link
1 Pi/2 0 0 0 M0 → M1
2 Pi/2 0 0 -0.37 M1 → M2
3 Pi 0.13221 19*Pi/17 0 M2 → M3
4 -Pi/2 0 2*Pi/17 0.111 M3 → M5
5 0 0.05 0 0 M5 → End-effector
Right arm
Link alpha R theta D
0 Pi/2 0 0 0 virtual link
1 -Pi/2 0 0 -0.0805 M0 → M0R
2 -Pi/2 0 0 0.212 M0R → M1R
3 Pi/2 0 Pi/2 0.10256 M1R → M2R
4 -Pi/2 0 -7*Pi/18 0 M2R → M3R
5 -Pi/2 0 Pi/2 0.16296 M3R → M4R
6 Pi/2 0 0 0 M4R → M5R
7 Pi/2 0 0 0.18925 M5R → M6R
8 Pi/2 0 -Pi/2 0 M6R → M7R
9 -Pi/2 -0.1 0 0 M7R → End-effector
Left arm
Link alpha R theta D
0 Pi/2 0 0 0 virtual link
1 Pi/2 0 0 0.0805 M0 → M0L
2 -Pi/2 0 0 -0.212 M0L → M1L
3 Pi/2 0 -Pi/2 0.10256 M1L → M2L
4 -Pi/2 0 11*Pi/18 0 M2L → M3L
5 -Pi/2 0 -Pi/2 -0.16296 M3L → M4L
6 Pi/2 0 0 0 M4L → M5L
7 Pi/2 0 0 -0.18925 M5L → M6L
8 Pi/2 0 Pi/2 0 M6L → M7L
9 -Pi/2 -0.1 0 0 M7L → End-effector

Virtual link corresponds to:

<math> H_0= \begin{bmatrix} 1.0 & 0.0 & 0.0 & 0.0\\ 0.0 & 0.0 & -1.0 & 0.0\\ 0.0 & 1.0 & 0.0 & 0.0\\ 0.0 & 0.0 & 0.0 & 1.0 \end{bmatrix} </math>

or if you prefer code: 

 //H0 (1.0 0.0 0.0 0.0   0.0 0.0 -1.0 0.0  0.0 1.0 0.0 0.0   0.0 0.0 0.0 1.0)     // given per rows (Very precise MATLAB Matrix)
 Matrix H0(4,4);
 H0.zero();
 H0(0,0)=1.0;
 H0(1,2)=-1.0;
 H0(2,1)=1.0;
 H0(3,3)=1.0;


Parameters by Nuno Conraria.

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