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DLD project

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Saad Shahid

on 30 May 2013

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Transcript of DLD project

INTRO -11 levels

-9 levels ranging from 10-90

-One below 10 level represented with 'L'

-One above 90 level represented with 'H'

-Buzzer for extreme conditions

-External rod immersed into water which detects levels ABSTRACT A water level indicator is a device used to indicate water level in any container. It employs simple logical and electrical principles and phenomena to perform this task.
Energy and water are essential resources for life. And one of the main problems being faced by a developing nation such as us is wastage of both energy and water. So to tackle this problem, this device comes in handy. WATER LEVEL DETECTOR BLOCK DIAGRAM COMPONENTS USED IC'S:
7404 NOT 7
7408 AND 3
7432 OR 1
74147 ENCODER 1
7448 DECODER 1

Bread boards, Buzzer, Push Switch, Battery (optional) SEMESTER PROJECT DIGITAL LOGIC DESIGN Shaheer Muzammil
Saad Shahid
Ashir Manzoor 30/05/2013 LOGIC DIAGRAM WORK DISTRIBUTION Shaheer 70% Hardware work

Saad 20% Hardware, 30% Report, Presentation

Ashir 70% report, 10% Hardware APPLICATIONS 1.A slightly larger scale implementation of this circuit can be used in household water tanks. Due to scarcity of water, there is often a case of water running out in the tanks. When this circuit is present there will be no need to manually check the water level in tank. The detector will display the current level. It will also warn if water level is low or if it is too high and about to overflow.

2.A very larger version could be used to detect forthcoming floods. If water in a stream or river is too high a warning will be given which could help in taken necessary precautions.

3.Water level monitoring can be done in dams and other reservoirs using this sort of circuit, on a much larger scale of course. FUTURE RECOMMENDATIONS 1.LDR’s could be used instead of simply immersing wires into the water. Alteration in the circuit will be required but the issue of water conductivity could be solved.
2.More voltage could be given to one of the 7-segment displays since the current display is slightly dimmer.
3.‘L’ for low level and ‘H’ for high level could be displayed in the same 7-segment display as the rest of the levels. Currently separate displays are used for these two displays.
4.Copper plates could be attached to the end of wires which are immersed in water, to improve conductivity.
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