What Does the Embedded System Works and What Is The Difference Between Embedded Systems And The System In Which Rtos Is Running?
Embedded system is defined as the integration of hardware circuitry with software programming for providing project solutions. With the help of embedded system technology complexity of circuits can be reduced to a great extent which further decreases the cost and size. It works as an independent system or act as a part of large system and is a microcontroller or microprocessor based system which is designed to perform a specific task.
Click Here to Download PDF Copy
Key Features of an Embedded System
Given the breadth of applications in which embedded systems are used, the importance of embedded systems continues to grow. For a long time, embedded systems have been used in many important applications such as avionics and traffic management systems. Their widespread use demonstrates the importance of embedded systems, especially when considering the potential impact of failure. For example, failure of the automatic pilot system or failure of the vehicle's braking system can lead to serious loss of life. Failure of the power system can lead to loss of life or poor quality of life. Failure of a plant's production management system can result in significant loss of revenue. Our dependence on embedded systems requires the development and adoption of new architectures and design techniques to meet the required performance requirements and achieve the required stability with limited resources in terms of processing, memory and power.
The main difference between traditional embedded systems and smart objects is that communication is generally not considered a central function of embedded systems, whereas communication is a defining characteristic of smart objects. There are many examples of embedded system communication, such as a car engine with an embedded microprocessor capable of passing state information to a computer connected to the engine at the point of service, but these systems are not defined by the communication function. A car engine that cannot communicate can still work as a car engine. On the other hand, smart objects such as wireless temperature sensors can no longer achieve their purpose without communication capabilities.
The List of Companies
1. Intel Corporation
2. Infineon Technologies AG
3. Texas Instruments Incorporated
4. STMicroelectronics N.V.
5. Fujitsu Limited
6. NXP Semiconductors N.V.
7. Toshiba Corporation
8. Renesas Electronics Corporation
9. Qualcomm Technologies, Inc.
10. Marvell Technology Group Ltd.
Conclusion:
Embedded systems are everywhere in the modern world. These systems are used in a variety of applications ranging from consumer electronics to automotive and avionics. A property common to all embedded systems is that they interact with the physical environment to drive input from their surroundings. Due to the application domain in which these systems are used, their behavior is often limited by functional (e.g. input-output relationships) and non-functional properties (e.g. execution time or energy consumption). Therefore, testing and validation of these systems is a difficult task. This chapter has described several problems and solutions in the context of embedded system testing. Specifically, it takes a closer look at the existing work of testing non-functional characteristics such as timing, energy consumption and reliability of embedded software.
Text sources: The Insight Partners