Design of Sound Activated Remote Control Essay

ABSTRACT Nowadays, when delinquency has more and more expanded and burglary, even car theft has become a social phenomenon and due to the limitation of infrared remote control in terms of control distance from the electrical equipment which not exceed in 30 feet or 10 meters and require line of sight when communicating with each other that you cannot easily access the equipment when you’re not in home or away from your car. This project study able to provide a solution for security and electronic devices conveniences. Design of sound activated remote control and alarm system utilizing mobile phone has been developed for security purposes and safety conveniences of electrical and electronic equipments with no phone call charges. The proposed design consists of the designed interface board and two cellular phones: one as a controller and the other as a transceiver. Whenever the status of the alarm changes, an automatic dial triggering of transceiver mobile phone will activated to alert the controlling mobile phone. Alternatively, the controlling mobile phone can turn on and off the equipment that connected to system by calling the transceiver mobile phone from any place that have mobile phone signal coverage. Findings of the project study showed that the design and developed circuit of mobile phone that used available local parts in the market is working properly for safety conveniences. It was user friendly through cellular communication and it effectively turns on and off electrical equipments through missed call triggering where you can easily access your equipments even if you’re not in the house or in holiday vacation. It proves that the ring detection circuit of the proposed project avoids phone call charges to the caller resulting to low cost maintenance compared to other commercial system that capable of performing similar functions but with relatively high cost. Based on the data collected the researcher concluded that the project is proven feasible, cheaper maintenance and easy to use and integrate. This was very reliable and worthy as an equipment remote control and alarm monitor system during its operation. In comparison to similar devices the developed system had able to perform similar functions without even software or programming involved. It was very effective and advisable for controlling equipments that are beyond the reach of the user without phone charges to the caller This project study is highly recommended to used for the community to activates their electrical and electronic equipments from any location that within the coverage area. These add up to their security and handiness of the equipments. For the students and future researcher with the same field of study should made research also to complement the information provided in this study. For the improvement of the design automatic charging of the mobile phone unit should take in consideration and the design system must be properly encapsulated to eliminate any unwanted signals that might trigger the system.