Correlate data and alerts across disparate sources to gain contextual understanding of an incident. How IoT Data Collection Works: Several layers interplay to make the IoT data collection process work:
- Device Layer: In the IoT architecture, devices that communicate with each other form the primary layer. These devices include sensors that track environmental data, bluetooth devices, low-power radio-based devices, actuators, and so on. IoT devices can be categorized under the following identities:
Communication Layer: This layer lets devices communicate with one another using protocols such as:
- A built-in chip-like unique identifier (or UUID) placed inside of a device;
- An identifier that depends on radio IoT data collection systems, for instance—Wi-Fi MAC, Bluetooth, and so forth.
- An identifier located inside the system’s programmable non-volatile memory (EEPROM);
- A Refresh/Bearer token
IT Edge Layer: This layer consists of the hardware, firmware, and operating system of your IoT devices.
Event Processing Layer: This layer processes and stores data collected from IoT devices. Other processes that occur in this layer include:
- HTTP/HTTPS— This is a basic text-based protocol supported even by low-end 8-bit devices.
- MQTT— Its a protocol designed to handle embedded systems and optimized to support IoT. It is known for a wide community of followers, as well as a robust asset library.
- CoAP— This protocol is based on HTTP semantics, and scores more footprint. Compared to MQTT, CoAP is more difficult to connect to firewalls and has poorer library support.
Client Communication Layer: This layer transfers data from the device to the user. It acts as a bridge between back-end databases and front-end interfaces for end users of the data. For many reasons, all these intricate layers of technology come with several hurdles that companies need to overcome. Here are some of them.
- data cleaning
- adding metadata to IoT data
- organizing data insights
- The event processing layer can be built via a database-powered server-side application like a JAX RS tool. You can also create this layer using IoT cloud services to process and store IoT data.