basic embedded system presentation
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The document presents information about an embedded system project using an 8051 microcontroller. It discusses the 8051 microcontroller architecture, including its memory capabilities and pin description. It then describes different types of sensors like proximity, level, temperature, IR, inductive, capacitive, photoelectric, resistive, and ultrasonic sensors. It also discusses relays and types including electromagnetic and solid state relays. Finally, it lists some basic integrated circuits needed for the project like voltage regulators, comparators, relay drivers, and motor drivers.
basic embedded system presentation
- 1. Presented by: Vimal Kumar 11ECIEC037 ECE 7TH SEM
- 2. • Introduction • 8051 Microcontroller • Pin Description of 8051 • Architecture of 8051 • Sensor and Types of Sensor • Relay
- 3. • An embedded system is a computer system designed to perform one or few dedicated function, often with real time computing constraints. • An embedded system is one ,that has computer hardware with software embedded in it as one of its components.
- 4. A microcontroller is a single silicon chip with memory and all Input/output peripherals on it. Hence a microcontroller is also popularly known as a single chip computer. •The 8051 is the first microcontroller of the MCS-51 family introduced by Intel Corporation at the end of the 1970s. •The 8051 microcontroller are capable of addressing 64k of program memory and a separate 64k data memory. •The 8051 has 4k of code memory implemented as on chip Read Only Memory. •The 8051 has 128 bytes if internal Random Access Memory.
- 6. SENSOR • A sensor is a device that detects events or changes in quantities and provides a corresponding output, generally as an electrical or optical signal; for example, a thermocouple converts temperature to an output voltage.
- 7. TYPES OF SENOSR • PROXIMITY SENSOR a proximity sensor is a sensor able to detect the presence of nearby objects without any physical contact. A proximity sensor often emits an electromagnetic field or a beam of electromagnetic radiation (infrared, for instance), and looks for changes in the field or return signal. • LEVEL SENSOR detect the level of substances that flow, including liquids, slurries, granular materials, and powders. • TEMPRETURE SENSOR is a sensor which detect the temperature.
- 8. • IR SENSOR is a electronics sensor that measure infrared light radiating from object in its field of view. • INDUCTIVE SENSOR is an electronic proximity sensor, which detects metallic objects without touching them. The sensor consists of an induction loop. Electric current generates a magnetic field. • CAPACITIVE SENSOR based on capacitive coupling, that take human body capacitive coupling . Capacitive sensors detect anything that is conductive or has a dielectric different from that of air. • PHOTOELECTRIC SENSOR is a device used to detect the distance, absence, or presence of an object by using a light transmitter, often infrared, and a photoelectric receiver. • RESISTIVE SENSOR is a transducer or electromechanical device that converts a mechanical change such as displacement into an electrical signal that can be monitored after conditioning. The simplest resistive sensor is the potentiometer
- 9. • ULTRASONIC SENSOR is a sensor which evaluate attributes of a target by interpreting the echoes from radio or sound waves respectively. Active ultrasonic sensors generate high frequency sound waves and evaluate the echo which is received back by the sensor.
- 10. • THERMOCOUPLE is a electronic device which is used as temperature sensor.
- 11. RELAY ELECTROMEG NETIC SOLID STATE ELCETROMEGNETIC RELAY is a switching device which depends on the electromagnetic field. SOLID STATE RELAY is a electronics device which works on n- type or p-type material or transistor. ELECTROMEGNETIC RELAY