Smart Home Project

Overview

The Smart Home Project is a Java-based simulation modeling the interactions within an intelligent home environment. This project represents the design of Java programming and showcases various design patterns and system interactions.

Team Members

• Matyas Urban
• Jaroslav Kopca

Project Summary

The simulation encompasses a range of entities, including devices, sensors, people, pets, and structural components like rooms and floors.

Key Components

• House Class: The primary container linking multiple Floor instances, which aggregate Room objects.
• Room Types: Each room is classified by RoomType and can contain objects such as Device, Sensor, and Pet.
• Person Instances: Represent individuals who move between rooms and interact with devices.

Device Hierarchy

Specific devices such as Coffee Maker, Washing Machine, and Air Purifier inherit from the Device class, allowing for specialized behaviors.

Controller Class

The Controller class manages time and events, generating reports via methods like HouseConfigurationReport() and ConsumptionReport().

Action Class

The Action class, associated with the Controller, represents tasks triggered by various actors within the system.

Use Case Diagram

Interactions in the system include:

• Go to Sleep
• Drink Coffee
• Start Washing

External Triggers

The Time class acts as an external trigger for events like Change Date/Night, while the Pet class has use cases like Eat from Feeder.

Design Patterns

The following design patterns are strategically chosen to structure the system efficiently:

• Composite: Represents the hierarchical structure of the home.
• Memento: Captures the state of objects for historical tracking and rollback capabilities.
• Strategy: Allows interchangeable algorithms within devices, enhancing flexibility.
• Command: Encapsulates requests as objects, decoupling the sender from the performer.
• State: Manages state-dependent behavior of devices, enabling a clean transition between states.
• Observer: Keeps the system components synchronized with state changes.
• Singleton: Ensures a single point of control and coordination, likely applied to the Controller.
• Factory Method: Provides a mechanism for creating instances of devices, allowing for extensibility.

Conclusion

This project showcases the capabilities of Java programming in simulating an intelligent home environment and demonstrates effective design principles and patterns for managing complex interactions among various components.