Algorithm for a five bar mechanism which transfers set of angles of the DC motors to the position of the end effector.
main.cpp
- Committer:
- ymbuser
- Date:
- 2015-10-20
- Revision:
- 1:8bc06db8386e
- Parent:
- 0:1acd9371fe29
File content as of revision 1:8bc06db8386e:
#include "mbed.h" // >>>>> FUNCTION DEFINITION <<<<< // Input van deze library zijn de hoeken van de motoren. Hierdoor wordt een // 'real time' positie verkregen waardoor deze waarden als input gegeven kunnen worden. // Voor verdere informatie: zie verslag of MATLAB script. // temp NOG IN TE VOEREN!!!!! double theta_l = 0; double theta_r = 0; // >>>>> INITIALISTIONS <<<<< const double bar1 = 0.260; // length bar 1 [m] const double bar2 = 0.342; // length bar 2 [m] const double base_spacing = 0.10559; // spacing between the DC-motors [m] int main() { double virt_bar_x = base_spacing + cos(theta_l)*bar1 + cos(theta_r)*bar1; double virt_bar_y = sin(theta_l)*bar1 - sin(theta_r)*bar1; double virt_bar = sqrt(pow(virt_bar_x,2) + pow(virt_bar_y,2)); // virt_bar = virtuele staaf tussen de twee scharnieren van de arm double phi = acos(0.5*virt_bar/bar2); double phi_diff = atan(abs(virt_bar_y)/virt_bar_x); double theta_l2, theta_r2; if (sin(theta_l) >= sin(theta_r)) { theta_l2 = phi - phi_diff; theta_r2 = phi + phi_diff; } else { theta_l2 = phi + phi_diff; theta_r2 = phi - phi_diff; } double x = -cos(theta_l)*bar1 - 0.5*base_spacing + cos(theta_l2)*bar2; double y = sin(theta_l)*bar1 + sin(theta_l2)*bar2; }