ieee 2012 projects for m tech btech ece eee embedded systems@ srcembedded solutions- hyderabad. web:www.srcembedded.com, ph-8297 313 858 mail:srcembedded@gmail.com

1. ZIGBEE BASED WIRELESS SENSOR NETWORKS FOR
SERVICE ROBOT INTELLIGENT SPACE
Abstract:
This paper is concerned with the implementation of Zigbee based wireless sensor
networks, which has been applied in our service robot intelligent space successfully. A
simplified Zigbee stack is proposed and the primitives of simplified Zigbee based wireless sensor
networks are illustrated, which reduces the stack, thus the storage, size and cost of the nodes was
brought down. To show the functionality of the Zigbee based wireless sensor networks in service
robot intelligent space, we describe some of the components in detail, such as environmental
sensors for environmental perception, home devices controllers for device control.
Existing system:
The current robots can only monitor the environmental details and they will not take
decision to control the devices. To improve the intelligence of home service robots and expand
their perception, intelligent space is proposed to help home service robots to solve their
problems, which are difficult to be solved on their own.
Proposed system:
With the rapid development of society, the growth of elderly population is much faster
than ever before. That is why the development of home service robots attracts more attention in
the field of robotics. However, the current home service robots are equipped with all kinds of
expensive equipments, but these robots can only achieve an extremely low-level intelligence.
In our service robot intelligent space, wireless sensor networks is designed to gather and
process sensor data from the environment in order to have a better understanding of the behavior
of the monitored entities. In addition, the proper action, with control commands are issued by the
wireless sensor networks, can be taken whenever necessary.
The robot is interfaced with temperature and light sensor when temperature and light
intensity goes beyond the set value the robot switches on the consecutive devices in the home.

2. The robot is controlled using keypad from control section and CCTV camera is used to monitor
the surroundings.
Block diagram:
Control Section:
Power
supply
AT89C51
Keypad
Microcontroller
LCD

3. Robot Section:
Power
Supply
UART
Temperature
Sensor
PIC16F877A
Microcontroller
LDR Sensor
Relay with
ULN 2003A
CCTV
Motor
Relay with
ULN 2003A
Motor

4. Home section:
Power
supply
Driver
Circuit
Device 1
Driver
Circuit
Device 2
AT89C51
Microcontroller

5. Hardware Requirements:

8051 & PIC 16F877A microcontroller

Zigbee Transceiver

Temperature Sensor

LDR Sensor

LCD & Keypad

CCTV camera

Relay with ULN 2003A
Software Requirements:

Keil C compiler

Embedded C

MPLAB