this is a project on visitor counter as well as home automation using plc ladder language

1. PRESENTED BY:
ANJUMAN MEMAN(130223111005)
ABHISHEK PATIL(130223111013)

2. CONTENT
Introduction
Block diagram
Flowchart
Simulation tool
Ladder network
Advantages
Application
Future development

3. INTRODUCTION
Two modules
Digital Visitor counter
 Automatic room light
controller

4. INTRODUCTION(CONT…)

5. BLOCK DIAGRAM
SENSOR
(ENTRY)
PLC
SENSOR
(EXIT)
RELAY
LCD
DISPLAY
LIGHTS
AND FANS

6. FLOWCHART
START
1 LIGHT AND
A FAN ON
COUNTER
INCREMEN
TED BY 1
IF
PERSON
ENTERS
IF
PERSON
EXITS
COUNTER
DECREMEN
TED BY 1
IF
COUNT
>5 OR
MULTIPL
E OF 5
IF TOTAL
COUNT-5
1 LIGHT AND
A FAN OFF
DISPLAY

7. Controller & Simulation tool
 SIMATIC controllers S7-1200
 Power supply 120/240VAC with DI14×24VDC sink/source
 DQ 10×Relay and AI2 on board
 6 High-speed counters & 4 pulse O/Ps on board
 Up to 3 Communication module & 8 signal modules foe I/O expansion
 0.04 ms/1000 instruction execution speed
 PROFINET interface for programming
 HMI and PLC to PLC communicatin
 TIA PORTAL

8. LADDER NETWORK

15. ADVANTAGES
1.Main advantage of this project is that it helps in energy
conservation. Because when there is nobody inside the
room then lights are automatically turned off.
2. Human efforts to count the number of person is
eliminated. Since this project does the automatic
person counting with the help of two sensors installed
on door frame.
3. Savings energy.

16. APPLICATION
Digital Visitor Counter can be used in various rooms like
 seminar hall,
 conference hall
where the capacity of room is limited and should not be
exceeded. Project will display actual number of
persons inside the room.

17. FUTURE DEVELOPMENT
1. Voice alarm system can be added to indicate that room
is full & persons can’t enter inside.
2. We can increase the maximum number of persons
that can be counted by implementing the external
switches and leds.
3. We can send this data to a remote location using
mobile or internet.