Summary

Wireless Sensor Network has become one of the hot topics nowadays. Indeed, it has been already applied in the use of many different areas. Such as the Home Automation, it is very common to find its use on the lighting control and security alarming. It does improve a lot on the people’s living quality with a more convenient environment.

Description

Introduction: Wireless Sensor Network has become one of the hot topics nowadays. Indeed, it has been already applied in the use of many different areas. Such as the Home Automation, it is very common to find its use on the lighting control and security alarming. It does improve a lot on the people’s living quality with a more convenient environment. In order to understand how this “Smart Innovative Technology” works, a study of the Wireless Sensor Network should be carried out in this project. And the Study could be divided into two main parts, which are:
  • The Study on a Wireless Communication Network: To understand how a wireless communication network works. A communication method of using apair of simple transmitter and receiver is to be studied and built.
  • The Study on Sensor: To understand how a sensor functions. An Occupancy Sensor (PIR Movement Sensor) is built and studied in this project.
Design: The system work flow is as follows:
  • To sense if there are anybody presence or absence in a specified area.
  • To transmit the sensing data back to the coordinator through a network.
  • Coordinator processes the received data and identifies if matched with the predefined criteria according to the needs of user.
  • If the criteria are matched, for instance, a body presence in the area, coordinator will send command to the lighting control unit to switch light on.
  • On the other hand, if nobody presence in the area for a period of time, coordinator will send command to the lighting control unit to switchlight off.Therefore, the system can perform a lighting control function where the light on whenever anybody presence, while the light off if nobody presence for a period of time so as to save the power consumption.
Requirements:
  • Occupancy Sensor: The sensor unit of the system. It is responsible to sense if there are anybody presence or absence in a specified area and generate sensing data ready for the coordinator to process and further application.
  • Wireless Communication Network: The communication channel between devices of the system. It is responsible to transmit the sensing data orthe commands to and from different devices in the system.
  • Coordinator: The headquarter unit of the system. It is responsible to control and monitor the data transmission in between devices of the system. It also processes the received sensing data from the sensing unit and, regarding to the processed result, outputs correspondingly, like light on/off.
Duration of the project: 10-12 Months

Assumptions

Assumptions are not defined for this project.

Duration

Duration is not defined for this project.

References

References are not defined for this project.

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