Abstract

Wireless communication is the transfer of information between two or more points that are not connected by an electrical conductor. In this project, transmitter and receiver circuit is used to make wireless sensor network system. A wireless sensor network consists of spatially distributed autonomous sensor  to monitor physical or environmental conditions, such as temperature, sound, pressure and etc. and to cooperatively pass their data through the network to a main location. In this project, wireless is used to prevent from child missing or far away from parent. The alarm will be attach to the wireless system to alert user when the signal is missing because of the child are far away from their parents. Other than that, GPS tracker also will be attached to the wireless system to make sure the user know where are the location or coordinate of their kids. It is believed that this project can reduce the number of missing children