Water Level Indicator Cum Controller
Thanks for reading: Water Level Indicator Cum Controller
The
present concept implements controlling of pump which pumps water from
the sump (underground tank) to the overhead tank, using 8951 microcontroller.
The control panel,
i.e. the main control unit of the system which consists of the primary
control switches, pump indicator, siren and level indicators. The visual
example of how switches And the indicators can be placed as shown the
figure below.
Front view of the model
In the figure shown above there are total of nine LEDs, four of which indicates the water level in the tank, another four indicates the water level in the sump and one LED indicates whether the pump is ON/OFF. It also consists of three switches.
- Switch 1 is the main power switch which is used to activate the system.
- Switch 2 is used to select whether to operate the pump in AUTO or MANUAL mode.
- Switch 3 comes to picture only when the system is operated in MANUAL mode. It controls the direct activation of the pump.
Description :
As you can see in the above diagram, port 0 is exclusively used as an input port which takes the information regarding the water level in the sump as well as in the overhead tank.
Port 1 is used as output port which is connected to the indicator that indicates the water level in both the tanks.
Port
2 is used as in/out port, it takes the input from switch 2 and switch 3
and gives the output which is connected to pump indicator, siren and
the relay which controls the switching of the pump.
Working of the system:
There are two modes of working for the system
- Manual mode
- Auto mode
Which is controlled by switch 2 (refer control panel diagram)
Manual mode:
When
the system is active and in manual mode, it only indicates the water
levels in the tanks and it doesn’t control any working of the pump. To
activate the pump in manual mode switch 3 is used.
In
this mode the operator should manually control the working of the pump.
As in case if the tank is full, operator should switch of the pump
which is not the case when compared to auto mode.
Auto mode:
When
the system is active and in auto mode, it only indicates the water
levels in the tanks and it controls the working of the pump.
