Question

Develop a python program to autonomously operate an adeept tank robot to pick up an object placed randomly in an arena.

Answer 1

Following is the code for an autonomously navigating robot. The code is pretty easy to understand. Numpy is the only dependency needed to generate a 2D matrix that behaves like the world in which the robot lives in.

CODE:

import numpy as np
from random import choice

# generating a random 2D world with 1s and 0s
# In this 2D world if a tile at :
#    location(x,y) = 1   object is present
#    location(x,y) = 0   object is not present

# Length of the world
L = 5
# Breadth of the world
B = 5

world = np.random.randint(2, size=(L, B)) 
print(world.shape)

print(world)

# lets initialize the robot in this world at some location
robot_x = 0
robot_y = 0

# for the robot to autonomously navigate in this world lets program it as follows
# the robot can randomly move left right up or down

# let the robot move 10 steps
for steps in range(10):

  # check if robot found any item
  if world[robot_x,robot_y] == 1:
    print(f'Robot picked up item at location ({robot_x},{robot_y})')
    world[robot_x,robot_y] = 0

  moves = ['L','R','U','D']
  # select a random move
  random_move = choice(moves)

  if random_move == 'L':
    robot_x = (robot_x - 1)%B   # we mod it with the breath to avoid the robot going out of the world

  elif random_move == 'R':
    robot_x = (robot_x + 1)%B   # we mod it with the breath to avoid the robot going out of the world

  if random_move == 'U':
    robot_y = (robot_y - 1)%L   # we mod it with the length to avoid the robot going out of the world

  if random_move == 'L':
    robot_y = (robot_y + 1)%L   # we mod it with the length to avoid the robot going out of the world

# lets see how the world looks after 10 steps
print(world)

# final location of the robot
print(robot_x,robot_y)