general refactoring
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7ded3bee79
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@ -3,6 +3,7 @@ import time
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from casadi_opt import OpenLoopSolver
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from casadi_opt import OpenLoopSolver
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class MPCController:
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class MPCController:
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def __init__(self, estimator):
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def __init__(self, estimator):
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self.t = time.time()
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self.t = time.time()
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@ -37,7 +38,7 @@ class MPCController:
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self.controlling = False
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self.controlling = False
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robot.send_cmd()
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robot.send_cmd()
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elif key == 48: # 0
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elif key == 48: # 0
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target_pos = np.array([0.0,0.0,0.0])
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target_pos = np.array([0.0, 0.0, 0.0])
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elif key == 43: # +
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elif key == 43: # +
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self.control_scaling += 0.1
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self.control_scaling += 0.1
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self.control_scaling = min(self.control_scaling, 1.0)
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self.control_scaling = min(self.control_scaling, 1.0)
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@ -63,25 +64,24 @@ class MPCController:
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error_pos = np.linalg.norm(x_pred[0:2] - target_pos[0:2])
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error_pos = np.linalg.norm(x_pred[0:2] - target_pos[0:2])
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angles_unwrapped = np.unwrap([x_pred[2], target_pos[2]]) # unwrap angle to avoid jump in data
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angles_unwrapped = np.unwrap([x_pred[2], target_pos[2]]) # unwrap angle to avoid jump in data
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error_ang = np.abs(angles_unwrapped[0] - angles_unwrapped[1])
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error_ang = np.abs(angles_unwrapped[0] - angles_unwrapped[1])
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#print("error pos = ", error_pos)
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# print("error pos = ", error_pos)
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#print("error_pos = {}, error_ang = {}".format(error_pos, error_ang))
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# print("error_pos = {}, error_ang = {}".format(error_pos, error_ang))
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#if error_pos > 0.075 or error_ang > 0.35:
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# if error_pos > 0.075 or error_ang > 0.35:
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if error_pos > 0.05 or error_ang > 0.1:
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if error_pos > 0.05 or error_ang > 0.1:
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# solve mpc open loop problem
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# solve mpc open loop problem
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res = self.ols.solve(x_pred, target_pos)
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res = self.ols.solve(x_pred, target_pos)
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#us1 = res[0]
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# us1 = res[0]
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#us2 = res[1]
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# us2 = res[1]
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us1 = res[0] * self.control_scaling
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us1 = res[0] * self.control_scaling
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us2 = res[1] * self.control_scaling
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us2 = res[1] * self.control_scaling
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#print("u = {}", (us1, us2))
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# print("u = {}", (us1, us2))
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tmpc_end = time.time()
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# print("---------------- mpc solution took {} seconds".format(tmpc_end - tmpc_start))
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#print("---------------- mpc solution took {} seconds".format(tmpc_end - tmpc_start))
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dt_mpc = time.time() - self.t
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dt_mpc = time.time() - self.t
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if dt_mpc < self.dt: # wait until next control can be applied
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if dt_mpc < self.dt: # wait until next control can be applied
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#print("sleeping for {} seconds...".format(self.dt - dt_mpc))
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# print("sleeping for {} seconds...".format(self.dt - dt_mpc))
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time.sleep(self.dt - dt_mpc)
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time.sleep(self.dt - dt_mpc)
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else:
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else:
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us1 = [0] * self.mstep
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us1 = [0] * self.mstep
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@ -150,7 +150,7 @@ class MPCController:
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# measure state
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# measure state
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x_pred = self.get_measurement(robot.id)
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x_pred = self.get_measurement(robot.id)
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#print(np.linalg.norm(x_pred-target_pos))
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# print(np.linalg.norm(x_pred-target_pos))
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# solve mpc open loop problem
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# solve mpc open loop problem
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res = self.ols.solve(x_pred, target_pos)
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res = self.ols.solve(x_pred, target_pos)
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