IoT Remote Monitoring and Control System Development Case Study (Door Opening and Closing System)

Data acquisition with sensors and devices ⇒ accumulation in the cloud ⇒ notifications and visualization (app development). Control of PLCs and equipment via a gateway (automation).

- We received feedback from customers who want to monitor the opening and closing status of building doors in real-time and at a low cost. In fact, when installing devices to detect opening and closing, significant costs are incurred for wiring and power supply work to notify the central system of the opening and closing status. - Therefore, we utilized Sigfox as a means to notify the central system from the door opening and closing detection device, and by using rechargeable batteries, we significantly reduced construction costs. - We developed an application that detects changes in the door opening and closing status by leveraging the global IoT network Sigfox, receiving signals from the detection device, and sending them to the cloud, allowing the status to be visualized in a web browser. - There are two main features: 1. You can view a list of changes in the door status (closed ⇒ open, open ⇒ closed) and any abnormalities in the detection device (such as low battery voltage or lack of communication for a certain period). 2. An alert will be displayed on the screen for doors that are left open as an abnormality, along with an alert sound. Building managers can check both screens, eliminating the need to individually check each door, and can focus on checking the detection devices that are abnormal or doors that are left open.

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