Introduction
This chapter is divided into two parts. The first part describes the structure, how we chose it, and the logo design. The second part describes the implementation procedures, programming languages and equipment's used to build this system.
System Design
In this part, we are going to illustrate four elements in the designing step: architectural design, and logo and interface design.
Architectural Design
The team had to design a rotational structure that enables motors to rotate and move fast and easily to cover a range of 90 degrees horizontally and vertically to give great results. We also tried to find a structure that can bear weight and can carry the weapon. So, we found that the wooden circular basics have suitable weight, the ability and flexibility to move and turn and give the best results.
To Build the Structure
- Wood cut in diameter 50mm, thickness 16mm.
- Wood cut in diameter 25mm, thickness 16mm.
- Rotating tablet, Diameter 15mm.
- Screws.
Hand Tools
- Screwdriver
- Drill
- Hammer
- Wooden paint
- brush
- Screws
Electronic Components
1-Arduino UNO:
Arduino is an open source microcontroller and an open source system. The board has a processor, memory and ports to connect sensors, motor and accessories, designed to be easy to deal with in terms of installation and connectivity and in terms of programming, it uses a simple language and easy and anyone can learn quickly. It is used in many applications such as parking system, robot
control system and many systems and projects.
Why did we choose Arduino?
In fact, there are various good Micro-Controllers that have the ability to control different electronic components on the internet, but the team preferred Arduino for many features that make it better such as:
• Simplicity: Arduino is designed in easy way to be used by all types of users including teachers, students, professionals and amateurs.
• Software environment: Arduino has a simple software environment designed to match both professionals' standards (strong and firm) and beginners (easy and simple).
• Multi – platform: Arduino can work on different operating systems like Windows, Linux, and Mac Os. That means it is better than most of the other micro-controllers that work on Windows only.
• Open Source Software: It is written in C++ so programmers can modify it.
• Open Source hardware: It enables Electronic Circuits designers design their own Electronic Circuits.
• Self-Assembly: It enables the users assemble its components by themselves using a manual that can be downloaded from Arduino's website.
• Cost: Compared to other Micro-Controllers, Arduino is the cheapest option with high features.
2-Web cam 720HD
3- Servo motor Arduino
Servos have integrated gears and a shaft that can be precisely controlled. Standard servos allow the shaft to be positioned at various angles, usually between 0 and 180 degrees. Continuous rotation servos allow the rotation of the shaft to be set to various speeds.
4-Laser Arduino :
5- Motion Arduino sensor:
"First, let us explain the working principle. The module actually consists of a Pyroelectric sensor, which generates energy when exposed to heat.
That means when a human or animal body will get in the range of the sensor it will detect a movement because the human or animal body emits heat energy in a form of infrared radiation. That is where the name of the sensor comes from, a Passive Infra-Red sensor. In addition, the term “passive” means that sensor is not using any energy for detecting purposes; it just works by detecting the energy given off by the other objects." [9] Figure 18, Figure 19
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