Design a system that shows a simplified automatic car washsystem with the following operating conditions:
- Water level needs to be maintained at water level (>Lower limit and < Upper limit ) at all times to ensure the waterpressure is sufficient for the wash cycle.
- 2 Possible errors:
- Water level exceeds upper limit or water level falls belowlower limit
- Car move away while washing process is ongoing
- System shall stop if the water level falls out of normalrange for a specific duration ( example. 30 secs)
- Green indicator will turn on when car wash is inprogress(system is running) and red indicator will turn on when thesystem stops
- Start/ stop push button is used to turn on / off thesystem
- Roller and spray valve should turn on when car presence isdetected and the system is running with normal water level. Thewashing cycle should last for 5 minutes
- Buzzer will turn on when there are errors. When the buzzeris triggered, the buzzer frequency should be programmed in such asa way that the operator can differentiate between water levelerrors or error caused by car moving away during the washcycle.
- A counter is used to count the numbers of cars washed by thesystem.
* Assuming the water level sensor provides a 0-10V outputvoltage corresponsed to the water level of 0-100%.
It should include
- Information on sensors, actuator, motors, relays used indesigning the system
- All wiring circuits
- Input/output table
- PLC configurations and ladder diagrams
- Any process improvement proposed/ implemented
- Database table which include the necessary data( minimum 5data) to be uploaded to the cloud
- Suggestion of possible data analysis / monitoring for thissystem
