SECURITY INTEGRATED SYSTEM BASED ON
WIRELESS ACCESS PROTOCOL FOR INDUSTRIAL APPLICATIONS WITH SMS ALERT SYSTEM
USING GSM MODEM
TECHNICAL
SPECIFICATIONS:
Title of the project :
Security integrated system based on wireless access
Protocol for industrial applications
with SMS Alert
System using GSM Modem
Domain : Embedded Systems Design
Software : Embedded C, Keil, Proload
Microcontroller : AT89S52
Power Supply : +5V, 750mA Regulated Power Supply
Display : LED 5mm
Crystal : 11.0592MHz
Security Channels : 5
Access Sensor : Reed Switch / Magnetic sensors, IR
Sensor
Vibration Sensor.
Panic Alert : Push-to-on switch
Communication Device : GSM Modem
Applications : Industries, Banks, Jeweler Shops,
Home security
ABSTRACT:
Security is
primary concern for every one. This Project describes a design of effective
security alarm system that can monitor an industry with five different sensors.
Unauthorized access, panic switch, wall braking, IR detection, and magnetic
sensor can be monitored by the status of each individual sensor and is indicated
with an LED. This LED shows whether the sensor has been activated and whether
the wiring to the sensor is in order. Obviously, this burglar alarm also has an
input to 'arm' the alarm, a tamper input and a couple of outputs to control a
siren. The alarm is also fitted with a so-called 'panic button'.
The
burglar alarm is built around the AT89S52 micro controller from Atmel. This
micro controller provides all the functionality of the burglar alarm. It also
takes care of filtering of the signals at the inputs. Only after an input has
remained unchanged for 30 milliseconds, is this new signal level passed on for
processing by the micro controller program. This time can be varied by adopting
small changes in the source code.
A maximum of 5 sensors can be
connected to the burglar alarm. These sensors need to have their contacts
closed when in the inactive state (i.e. Normally Closed). In addition, each
sensor needs to have its tamper connection wired as well. A power supply
voltage of +5 VDC is available for
each sensor at the corresponding wiring terminals.
LEDs indicate the status of the
corresponding sensors. When the alarm has been activated, the LED of the sensor
that caused the alarm will light up, or flash in the event of a cable failure.
When the alarm is armed, the LED
'alarm armed' will flash during the exit-delay. After the exit-delay, the LED
will light continuously. The LED 'alarm triggered LED' flashes during the entry-delay
and will turn on continuously once an actual alarm has been generated. 'Alarm
triggered LED’ turns off only when the alarm is switched off with key switch
Sw1. When an alarm has taken place, it can be determined afterwards which
sensor (or tamper input) caused the alarm to trigger. The LED 'tamper' lights
up when the tamper input is opened. This LED will also continue to be on until
the alarm is switched off.
The uniqueness of this project is,
not only alerting the neighbors by its siren, but also it sends an caution SMS
to four mobile numbers. This numbers can be changed at any time by the user
using a 3X4 key pad. These numbers are stored in EEPROM.
This project uses regulated 5V, 750mA
power supply. 7805 three terminal voltage regulator is used for voltage
regulation. Bridge type full wave rectifier is used to rectify the ac out put
of secondary of 230/12V step down transformer.
BLOCK
DIAGRAM:
Advantages:
- Sophisticated security
- Monitors all hazards and threats
- Alert message to mobile phone for remote
information
- Mobile number can be changed at any time
Scopes for Advancements:
- Rechargeable
Applications:
- Banks, Offices, Industries, Jeweler Shops and
Home Applications
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