Page 239 - Shaping A Sustainable Future

IoT Power Surge Sensor: The sensor consists of a Cloud Dashboard Design: The team designed a cloud
controller with a Wi-Fi connection and a relay (see Figure interface to store the sensor node data, data visualization
16). Relays are used, where necessary, to control a circuit and generate alerts whenever abnormalities are
with an independent low-power signal or where several detected.
circuits must be controlled by one signal. They refresh
the signal coming in from one circuit by transmitting it on Web Login Page: A web login page is designed to
another circuit. Relays were used extensively to perform authenticate the users’ access to collected data (see
logical operations and monitor power operations. Dry Figure 17). Nevertheless, all data stored at the cloud are
joints contacts prevent any high voltage leakages that purely temperature data and the freezer identification
endanger the microcontroller board. details. No sensitive data are stored to prevent data
hijack by external parties.

Figure 16: IoT Power surge sensor node.

Figure 17: Login page.

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