Implementation of an Internet of Things (IoT) Based Neighborhood Distress Alert System

Abstract

To acquiesce to the increase in territorial invasion of communities by hoodlums, bandits and kidnappers everyday, some communities have resorted to engage the services of security agents or guards to watch over and alert them in the case of any security breach. However, the neighborhoods found in some locations especially, in the rural areas impact on the cost of employing guards, and the consequent disagreement amongst residents in the neighborhood security meeting. This paper proposes an Internet of Things (IoT) based system for alerting residents in a neighborhood as well as reporting the actual location of a particular neighbor in distress. To achieve this, a hardware system based on NodeMCU microcontroller with built-in Wi-Fi chip for internet routing is designed. Communication is established remotely between the hardware system and the cloud through the server Application Programming Interface (API) that utilizes cloud resources such as Short Message Service (SMS) gateway and Google map API to craft SMS and fetch location coordinate from Google map Uniform Resource Location (URL) respectively. This piece of information is then displayed on the Liquid Crystal Display (LCD) device on users’ machine and mobile phones in real time for notification. The test carried out shows that the developed system is reliable and affordable for use in a neighborhood.