Proposal-1

TonightIwanttosleep — Sun, 05 Jan 2025 10:50:03 +0000

Problem 1: Determining the Mass of an Object

Objective

Determine the mass of an object without using pre-made sensors for measuring different types of mass.

Methodology Explanation

There are many methods for determining the mass of an object, but since the competition organizers will provide a spring with a known spring constant, we have chosen to use the following formula for calculations to align with the resources provided by the competition organizers.

Hooke’s Law

And, since: F = m ⋅ g

Solving for mass m:

Where:

F is the force or weight (in N)
m is the mass (in kg)
k is the spring constant (in N/m)
Δx is the spring extension (in meters)
g is gravitational acceleration (9.8 m/s²)

Project Design

Schematic Diagram

Flowchart

Problem 2: Projectile Launching

Objective

Shooting a ball to collide with an object falling freely to the ground from a different position.

Methodology Explanation

Concept-1: Shoot the Monkey

The "Shoot the Monkey" experiment is a classic physics demonstration used to illustrate projectile motion and the effect of gravity on two objects in free fall.

The speed of the ball, the weight of the ball, the distance between the launcher and the monkey, and the weight of the monkey do not affect whether the ball will hit the monkey, as long as:

Aim directly at the monkey (before it starts falling).
Shoot the ball at the exact moment the monkey starts to fall.

From this concept, we don't need to calculate anything complicated in real time during the experiment.

Concept-2: Use a Formula

This formula is similar to the concept of "Shoot the Monkey." It shows how different variables are related to each other in a projectile motion problem.

Formula

The motion of an object falling freely under the influence of gravity
Resolving Forces into Components (Launcher)
To ensure a collision between the ball and the freely falling object, we must establish the following equation
The Motion of a Ball from the Launcher
Solve the Equation for t
Solving Equations to Show the Relationship Between Variables

The tangent function relates an angle in a triangle to a specific ratio of side lengths, specifically the ratio of the opposite side (height) to the adjacent side (horizontal distance). This means that the formula "tangent of θ = height / distance" tells us how angles and side lengths in right-angled triangles interact. In practical terms, it describes how the angle of elevation (or depression) is related to the height of an object and the horizontal distance from it.

Project Design

Schematic Diagram

Page-1
Page-2

Flowchart

Cost

Description	Quantity	Total Cost	Purpose
Arduino UNO R3	2	-	Main processor
HC-SR04 (Ultrasonic)	1	฿30	Distance measurement
Servo	4	฿380	Push a ball
Motor	5	฿475	Launch a ball/Move a robot
Button	2	-	Change/Select mode
Omnidirectional wheels	3	฿780	Allows movement in all directions
IR-Sensor	2	฿18	Track a position marker
L293D	2	฿30	Allows control of multiple DC motors
74HC595	1	฿17	Expand the number of digital outputs
Acrylic/3D printing	-	฿200	Robot/launcher body

Total: ฿1930

The Intelligent Disaster Management System with Alternative Energy and AI-Powered

TonightIwanttosleep — Wed, 18 Dec 2024 20:02:26 +0000

Objective

The objective of our project is to transition from human-based observation to a camera-based system. Cameras have a much longer viewing distance than humans, and our system provides notifications much faster than manual methods, helping to avoid danger more effectively.

How Does It Work?

Our project has three main components:

Wildfire Detection Pole: This pole is set up in the forest to detect fires.
Data Center: It receives information from the Wildfire Detection Pole and sends it to the internet, allowing users to monitor the temperature and other data around the pole.
Application: A mobile app that provides essential wildfire-related features and notifications.

Now, let's discuss our Application and Wildfire Detection Pole in more detail.

Application Features

Our application includes five key features:

Wildfire Location:
- The app displays the locations of active wildfires. For example, if there are wildfires in three places, it lists those locations for easy reference.
Hotline Call:
- Users can directly call emergency hotlines from within the app.
Location Sharing:
- Users can share their current location with others. For instance, if someone is in the forest during a wildfire, they can send their location to request help.
Environmental Data:
- The app provides real-time data, including temperature, humidity, and gas levels around the pole.
Alert System:
- If a wildfire is detected, a red circle appears on the map to indicate the affected area. Users within this red circle receive a notification sound, prompting them to evacuate the danger zone.

The Wildfire Detection Pole

The Wildfire Detection Pole integrates the following components:

Raspberry Pi Pico Board: Handles environmental sensors and initial data processing.
Raspberry Pi 5 Board: Controls the camera and processes image data for object detection.
Camera System: Rotates back and forth to scan the environment and detect wildfires.

How It Works:

The Raspberry Pi 5 connects to the Raspberry Pi Pico and the camera, controlling the camera's rotation.
The camera uses an object detection system to identify wildfires. When a wildfire is detected:
- The camera stops rotating and captures images of the wildfire.
- These images, along with temperature and humidity data, are sent to the Data Center.
If no wildfires are detected:
- The camera continues rotating and pauses for 30 seconds after completing a full rotation.
- Temperature and humidity data are sent every 30 minutes.

DEV Community: TonightIwanttosleep

Proposal-1

Problem 1: Determining the Mass of an Object

Objective

Methodology Explanation

Hooke’s Law

Project Design

Schematic Diagram

Flowchart

Problem 2: Projectile Launching

Objective

Methodology Explanation

Concept-1: Shoot the Monkey

Concept-2: Use a Formula

Formula

Project Design

Schematic Diagram

Flowchart

Cost

The Intelligent Disaster Management System with Alternative Energy and AI-Powered

Objective

How Does It Work?

Application Features

The Wildfire Detection Pole

How It Works: