diff --git a/software/rpi/hexapod.py b/software/rpi/hexapod.py index f2e5ac3..c6ed8db 100644 --- a/software/rpi/hexapod.py +++ b/software/rpi/hexapod.py @@ -11,7 +11,7 @@ from leg import Leg import numpy as np import time import json -from path_generator import forward_path, backward_path +from path_generator import gen_forward_path, gen_backward_path SIN30 = 0.5 @@ -83,22 +83,32 @@ class Hexapod: self.pca_right.servo[14]], correction=[-6, 4, 0]) - self.standby_coordinate = np.zeros((6, 3)) + self.standby_coordinate = self.calculate_standby_coordinate(60, 75) + self.forward_path = gen_forward_path() + self.backward_path = gen_backward_path() self.standby() - time.sleep(0.1) + time.sleep(1) - # self.leg_0.set_angle(1, 45) - - # full_path = forward_path() - - # for mm in range(0, 30): - # self.move(full_path, 0.005) - - full_path = backward_path() + for mm in range(0, 30): + self.move(self.forward_path, 0.005) for mm in range(0, 30): - self.move(full_path, 0.005) + self.move(self.backward_path, 0.005) + + def calculate_standby_coordinate(self, j2_angle, j3_angle): + j2_rad = j2_angle/180*np.pi + j3_rad = j3_angle/180*np.pi + standby_coordinate = np.zeros((6, 3)) + + standby_coordinate[:, 0] = self.mount_x+(self.root_j1+self.j1_j2+( + self.j2_j3*np.sin(j2_rad))+self.j3_tip*np.cos(j3_rad))*np.cos(self.mount_angle) + standby_coordinate[:, 1] = self.mount_y + (self.root_j1+self.j1_j2+( + self.j2_j3*np.sin(j2_rad))+self.j3_tip*np.cos(j3_rad))*np.sin(self.mount_angle) + standby_coordinate[:, 2] = self.j2_j3 * \ + np.cos(j2_rad) - self.j3_tip * \ + np.sin(j3_rad) + return standby_coordinate def move(self, path, interval): for p_idx in range(0, np.shape(path)[0]): @@ -117,37 +127,17 @@ class Hexapod: time.sleep(interval) def standby(self): + dest = self.standby_coordinate + angles = self.inverse_kinematics(dest) - self.standby_coordinate[:, 0] = np.array(self.mount_x)+(self.root_j1+self.j1_j2+( - self.j2_j3*COS30)+self.j3_tip*SIN15)*np.cos(self.mount_angle) - self.standby_coordinate[:, 1] = self.mount_y + (self.root_j1+self.j1_j2+( - self.j2_j3*COS30)+self.j3_tip*SIN15)*np.sin(self.mount_angle) - self.standby_coordinate[:, 2] = self.j2_j3 * \ - SIN30 - self.j3_tip * COS15 - - self.leg_0.set_angle(0, 90) - self.leg_0.set_angle(1, 60) - self.leg_0.set_angle(2, 75) - - self.leg_1.set_angle(0, 90) - self.leg_1.set_angle(1, 60) - self.leg_1.set_angle(2, 75) - - self.leg_2.set_angle(0, 90) - self.leg_2.set_angle(1, 60) - self.leg_2.set_angle(2, 75) - - self.leg_3.set_angle(0, 90) - self.leg_3.set_angle(1, 60) - self.leg_3.set_angle(2, 75) + self.leg_0.move_junctions(angles[0, :]) + self.leg_5.move_junctions(angles[5, :]) - self.leg_4.set_angle(0, 90) - self.leg_4.set_angle(1, 60) - self.leg_4.set_angle(2, 75) + self.leg_1.move_junctions(angles[1, :]) + self.leg_4.move_junctions(angles[4, :]) - self.leg_5.set_angle(0, 90) - self.leg_5.set_angle(1, 60) - self.leg_5.set_angle(2, 75) + self.leg_2.move_junctions(angles[2, :]) + self.leg_3.move_junctions(angles[3, :]) def inverse_kinematics(self, dest): temp_dest = dest-self.mount_position diff --git a/software/rpi/path_generator.py b/software/rpi/path_generator.py index 533c998..640c0d5 100644 --- a/software/rpi/path_generator.py +++ b/software/rpi/path_generator.py @@ -2,7 +2,7 @@ from lib import semicircle_generator import numpy as np -def forward_path(): +def gen_forward_path(): # assert (g_steps % 4) == 0 g_steps = 20 g_radius = 25 @@ -22,7 +22,7 @@ def forward_path(): return path -def backward_path(): +def gen_backward_path(): # assert (g_steps % 4) == 0 g_steps = 20 g_radius = 25