Multi-drone coordination concept in Drone Programming - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to start the drone's mission.

Drone Programming

drone.[1]()

Drag options to blanks, or click blank then click option'

Alaunch

Bstop

Cland

Dhover

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'land' or 'stop' instead of 'launch' will not start the mission.

The launch() command starts the drone's mission by taking off.

2fill in blank

medium

Complete the code to make the drone move forward by 10 meters.

Drone Programming

drone.move([1], 10)

Drag options to blanks, or click blank then click option'

Aforward

Bbackward

Cup

Ddown

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing 'backward' or 'up' will move the drone in the wrong direction.

The move('forward', 10) command moves the drone 10 meters forward.

3fill in blank

hard

Fix the error in the code to check if the drone has reached its target.

Drone Programming

if drone.position == [1]:
    drone.stop()

Drag options to blanks, or click blank then click option'

Atarget position

BtargetPosition

Ctarget-position

Dtarget_position

Attempts:

3 left

💡 Hint

Common Mistakes

Using hyphens or spaces in variable names causes syntax errors.

The variable target_position correctly holds the target coordinates.

4fill in blank

hard

Fill both blanks to create a dictionary of drone IDs and their battery levels for drones with battery above 20%.

Drone Programming

battery_status = {drone_id: [1] for drone_id, [2] in drones.items() if battery > 20}

Drag options to blanks, or click blank then click option'

Abattery

Bstatus

Dlevel

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong variable names or keys that don't exist in the drones dictionary.

The dictionary comprehension maps each drone_id to its battery level from the drones dictionary.

5fill in blank

hard

Fill all three blanks to filter drones with signal strength above 75 and create a dictionary with drone names in uppercase as keys and their signal as values.

Drone Programming

strong_signals = [1]: [2] for name, [3] in drone_signals.items() if signal > 75}

Drag options to blanks, or click blank then click option'

Aname.upper()

Bsignal

Dname

Attempts:

3 left

💡 Hint

Common Mistakes

Using original names instead of uppercase or wrong variable names.

This dictionary comprehension creates keys as uppercase drone names and values as their signal strength, filtering only those with signal above 75.

Practice

1. What is the main goal of multi-drone coordination in drone programming?

easy

A. To make drones fly faster than sound

B. To let many drones share work safely and efficiently

C. To program drones to work alone without communication

D. To reduce the battery life of drones

Solution

1. Step 1: Understand the purpose of coordination

   Coordination means working together safely and efficiently.

2. Step 2: Match the goal with options

   Only To let many drones share work safely and efficiently talks about sharing work safely and efficiently.

3. Final Answer:

   To let many drones share work safely and efficiently -> Option B

4. Quick Check:

   Coordination = safe, efficient teamwork [OK]

Hint: Coordination means teamwork and safety [OK]

Common Mistakes:

• Thinking coordination means flying faster
• Ignoring communication between drones
• Confusing coordination with solo drone tasks

2. Which of the following is the correct way to assign tasks to multiple drones in a coordination program?

easy

A. Assign tasks randomly without checking

B. Ignore task assignment and let drones decide

C. Assign all tasks to one drone only

D. Assign tasks clearly and check progress often

Solution

1. Step 1: Identify best practice for task assignment

   Clear task assignment and progress checks avoid confusion.

2. Step 2: Compare options with best practice

   Only Assign tasks clearly and check progress often matches clear assignment and progress checking.

3. Final Answer:

   Assign tasks clearly and check progress often -> Option D

4. Quick Check:

   Clear tasks + progress check = good coordination [OK]

Hint: Clear tasks and checks keep drones on track [OK]

Common Mistakes:

• Assigning tasks randomly
• Giving all tasks to one drone
• Ignoring progress monitoring

3. Consider this pseudo-code for coordinating two drones:

tasks = ['scan', 'deliver']
drones = ['drone1', 'drone2']
assignments = {}
for i in range(len(drones)):
    assignments[drones[i]] = tasks[i]
print(assignments)

What will be the output?

medium

A. {}

B. {'drone1': 'deliver', 'drone2': 'scan'}

C. {'drone1': 'scan', 'drone2': 'deliver'}

D. Error: Index out of range

Solution

1. Step 1: Understand the loop and assignments

   Loop runs twice (0 and 1), assigning tasks[0] to drone1 and tasks[1] to drone2.

2. Step 2: Determine final dictionary content

   assignments = {'drone1': 'scan', 'drone2': 'deliver'}

3. Final Answer:

   {'drone1': 'scan', 'drone2': 'deliver'} -> Option C

4. Quick Check:

   Index matches tasks to drones correctly [OK]

Hint: Match index of drones and tasks in loop [OK]

Common Mistakes:

• Swapping task order
• Thinking index error occurs
• Expecting empty dictionary

4. This code tries to assign tasks to drones but causes an error:

tasks = ['scan', 'deliver']
drones = ['drone1']
assignments = {}
for i in range(len(drones)):
    assignments[drones[i]] = tasks[i]
print(assignments)

What is the error and how to fix it?

medium

A. IndexError because tasks list is longer than drones; fix by matching list sizes

B. SyntaxError due to missing colon; fix by adding colon after for

C. TypeError because assignments is not a list; fix by using a list

D. No error; code runs fine

Solution

1. Step 1: Identify cause of error

   Loop runs once (len(drones)=1), but tasks[1] is accessed if loop ran more times; here no error yet but if loop ran more, IndexError occurs.

2. Step 2: Fix by matching list sizes

   Ensure drones and tasks lists have same length to avoid index errors.

3. Final Answer:

   IndexError because tasks list is longer than drones; fix by matching list sizes -> Option A

4. Quick Check:

   List length mismatch causes index error [OK]

Hint: Check list lengths before looping [OK]

Common Mistakes:

• Confusing syntax error with index error
• Thinking assignments must be a list
• Ignoring list length mismatch

5. You want to coordinate 3 drones to cover 3 zones without overlap. Which approach best ensures safe, efficient coverage?

hard

A. Assign each drone a unique zone and confirm completion before next task

B. Let all drones fly randomly and cover zones as they find them

C. Assign all zones to one drone and keep others idle

D. Assign zones without communication and hope for no collisions

Solution

1. Step 1: Understand safe and efficient coverage

   Unique assignments prevent overlap and collisions.

2. Step 2: Evaluate options for coordination quality

   Only Assign each drone a unique zone and confirm completion before next task assigns unique zones and confirms completion, ensuring safety and efficiency.

3. Final Answer:

   Assign each drone a unique zone and confirm completion before next task -> Option A

4. Quick Check:

   Unique tasks + confirmation = safe, efficient coordination [OK]

Hint: Unique tasks plus confirmation prevent overlap [OK]

Common Mistakes:

• Ignoring communication and confirmation
• Assigning all tasks to one drone
• Allowing random flying without control