Usually , it is for process control purposes
3 elements involved :
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjZO7Tjg5XemcNcv6mmg6PPLo1jJ66Q_gJ9I_Q3tlRiVasos_egRx85ZVMIrEoquZ5vyk5v0eRBChRDV_INvbZZeMWi3aU85cpypCDhBSFF9riF9pYISUthTs_J4VHssKd2tR18TMNB42Y/s400/IO.jpg)
Types of computer-oriented control system
- DCS (Distributed control system)
- PLC (Programmable Logic Controller)
- PC (Personal Computer)
- Embedded controller
Computer
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjMfQuMM9h5bGkUqEW00mBjedRpkXHZfHvX0bSEuznBou1cFNgbbGcZCCA0noVC3i7YaLq_4fiAOq-IE0soMlAolq90TW_p-UWZXVDRtzuaH_-jVPxktH_QStR9oFOCn9kbb7e0tjFZDTM/s400/2.png)
Dedicated-application system
- Where the system is dedicated to perform a single task or a single group of tasks
- Examples : Microwave, ECU, Calculator
- A microcomputer/controller receives input information
- Executes a sequence of instruction to process the information
- Provides output
Example of Dedicated-application system
Engine status display system
- The input information (engine parameter: temperature, oil pressure,etc) is converted to an electrical quantity by some type of transducer.
- The electrical quantities are then converted to a digital form to be inputted to the microcomputer system (µC)
- The µC processes the input data
- Then outputs the information to the display panel
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgT7RNifheRgrb0tzxDdgjT5JhmiG1nYiEHADR7gvJ5FmZ0WIYaFtLcdtrRJpLTW-ts0V9cDWChX8XV3gvzwPz7cRrWeGt1yYYTexnicihnri4YuaPzv3SxKfS_YixdK6xBiWJHfbIIs2w/s400/EXAMPLE.jpg)
No comments:
Post a Comment