Embedded System - Weekly Journal

Jump Links:

• Week 1
• Week 2
• Week 3

Week 1

Today was our first class of the 1.5 semester, and we were still taught by our first semester lecturer, Mr. Yusri. It seemed like our class had students from different intakes joining us. The subject matter of the day centered around the concept of embedded systems. This is a topic which was entirely foreign to me. However, after our lecture's explanation, I now have a basic understanding of embedded systems. Essentially, it involves a combination of computing principles and innovative design thinking, which is fundamental for various applications and technologies. 

What is Embedded System?

• Specialized computing system designed to perform dedicated functions within a larger system.
• Specific applications, providing efficient and reliable operation.
• Design thinking.

Examples

• Washing Machine - Embedded systems control the water temperature, spin speed and cycle duration. 
• Traffic Light - Embedded systems manage the timing and synchronization of the traffic light.
• Medical Devices - Embedded systems in pacemaker and insulin pumps monitor and regulate physiological functions.
• Automotive Systems - Embedded systems control engine management, airbag deployment and anti-lock braking systems.

Figure 1.1 Examples of embedded system

Key Characteristics

• Real Time Operation - Must respond to inputs or stimuli within specific time constraint. Example: anti-locking systems, need to apply brakes in response to wheel speed changes instantly.
• Reliability - Fundamental characteristics, ensuring consistent and predictable operation over extended periods without failure. Example: in medical devices, critical for patient safety.
• Constraints - Limitation: memory, processing power and energy consumption. Balancing functionality with resource constraints is a key challenge in the design of embedded systems.

Reflection

After this lecture, I now grasp a better understanding of what an embedded system is. Embedded systems are specialized computing systems that play a crucial role in our everyday activities. For example, there are numerous common embedded systems found in our household like washing machine, lighting and refrigerator which bring convenience to our daily lives. Their real-time responsiveness, reliability, and ability to operate efficiently with limited resources make them indispensable in various applications across different industries. As a student in interactive spatial design, it's not just about learning design principle, it is also important to understand how to integrate technology and computing to create digital outcomes from our designs.

< back

Week 2

This note provides detailed information about the characteristics of embedded systems. Since there was no class this week due to Chinese New Year, we are required to self-study. The note gives a deeper understanding of real-time operation, reliability, and constrained resources in embedded systems. It also covers fundamental components such as microcontrollers, sensors, actuators, memory, and communication interfaces in embedded systems. 

Reflection

After reading the note, I have deeper understanding about embedded systems. I now know that real-time operation is crucial for keeping everything synchronized, reliability is important for maintaining the operation of the system, and considerations of limited resources in embedded system. I also learned about the four main parts of embedded systems: microcontroller, sensor and actuator, memory, and communication interfaces. Each part has its specific task, and they collaborate in making the system work smoothly. Understanding the characteristics and components is fundamental for designing and developing effective embedded systems, and I have learnt more about the importance of embedded system.

< back

Week 3

In this class, we'll explore the different parts of embedded systems: microcontrollers, sensors and actuators, memory, and communication interfaces. Each component has its own role and they collaborate to carry out specific tasks. We'll also learn about how these components function within smart homes and smart environments. After attending this lecture, I still feel perplexed by each component as this topic is totally new to me. While I can understand the function of each component but comprehend their integration into application is still complicated to me. It seems like I have to check for additional resources to gain a clearer understanding.

< back