Remote monitoring system for deadlocks

This paper outlines the development of a remote monitoring system for deadlocks; in the aim of improving peace of mind, and adding an extra layer of security at a low cost. The literature research covers the flaws and commonalities of door security, explores different wireless protocols, passive sensors, and microcontroller to internet interface strategies. The development then goes through the mechanical, electrical, and network design of the prototype resulting in a low cost monitoring system that runs in 2 modes. Both modes have a range of 25m and differ in battery lifespan and response time. One mode has a response time of 42.3ms and a battery life of 83 days, where the other has a worst case response time of 20.06s and a battery life of 0.69 years. The first mode was deemed unsuccessful with such a short battery life, whereas the second was deemed a success. Although response time was not added as a specification, it is recommended that in future work it be included. Work that is not included in this paper, but is recommended for future work, is an in depth security analysis and development for wireless node security, and sensor integration with already present security system and/or devices.