Electronic Engineering Schematics
Microcomputer Circuits in Process Control
Embedded Process Control :
Process Control with Embedded Systems. Microcontroller circuits
with Analog to Digital Interface used in Industrial Automation.
Microcontrollers are versatile for process control
instrumentation, The Instruments need to be small and power
efficient, they have to be immune to electrically noisy
and SBC in Real World
When such a instrument is mounted close to big machines, it has
to be resistant to vibration failure due to harmonics.
When it is used in ships or chemical industries, they need to be
corrosion resistant. This makes Industrial Instruments a
challenge to design, as the reliability is next only to Medical
and Military instrumentation.
In applications like data loggers, scanners and PID Controllers;
Microcontrollers are inevitable. The analog and digital
counterparts that were built years back were difficult to
maintain and very big in size. With a uC a 48 x 48 1/16 -
DIN PID Box is possible.
Embedded Systems in Instrumentation
Here is a controller that uses the power of uC. You will
notice the controls and display are easily possible as it is
an embedded system. Temperature
Controllers Autotune Fuzzy Logic
The math needed for PID or Fuzzy self learning logic or Auto
Tune makes uC indispensible. Configuring above using Digital,
Analog and Mixed chips would make it 10 times the size of a uC
Modular Automation like PLC uses many
uCs. There are Multiplexers, Analog and digital modules
controlled by uC. Modern Computer based SCADA have
wireless interfaces and transmitters using uC based intelligent
Physical Computing Applications
A Software Computing Application in an embedded system or
computer with associated hardware and devices to Sense Real
world Parameters with Sensors and Switches as Inputs. React,
Control, Display or Operate using Displays, Lights and Actuators
as Outputs. Interact, Network and collabaorate with other such
systems too. Robotics and Mechatronics are its main branches. It
overlaps on Industrial and Home Automation too.
20th Apr 2020