Smart Home Made Intelligent with Cloud 'Connectivity', It's Easy to Do
Published2017.10.20 12:14When you visit electronics exhibitions and stores, you can encounter 'smart homes' filled with home appliances. From rice cookers to gas ranges, refrigerators, and TVs, most home appliances are equipped with IoT services. If users wish, the day is not far off when all home appliances in their homes can be furnished with products capable of IoT services.
At the center of such smart homes is an artificial intelligence speaker that acts as a 'hub'. The speaker listens to the user's commands, retrieves data from the cloud, and transmits commands to the corresponding device. This is because IoT devices have limited space to store data, and using the cloud is more efficient due to security concerns and other factors.
(Photo source: SKT INSIGHT)
As the number of devices that can be controlled through the hub increases, it means that the connection between hardware and software has become more active. Lee Hyun-myung, assistant manager in charge of IoT at STMicroelectronics, explained the relationship between IoT and AWS, stating that "as engineers, you must be deeply considering integrated solutions."
An IoT system consists of IoT nodes, IoT services in the cloud, and users utilizing those services.
The assistant manager said, "AWS plays the role of processing messages between nodes and users. AWS SDK adopts a method of bidirectional authentication between IoT nodes and servers. The gateway employs MQTT communication protocol, which is an ISO standard."
Meanwhile, the Rules Engine allows filtering only desired data to receive computing results. The Registry enables IoT APIs to register IoT nodes and distinguish their characteristics.
ST provides examples for Amazon Web Services (AWS) and Azure, offering a Discovery Kit that connects IoT nodes and users' devices as a service platform.
Key features of the STM32L4 IoT Discovery Kit (B-L475E-IOT01A) are: ▲Support for four low-power wireless standards including Wi-Fi, Bluetooth, Sub-GHz, and NFC ▲Support for six sensors including temperature/humidity, 3D gyroscope, accelerometer, barometer, 3-axis magnetometer, and 9-axis motion sensor.
The assistant manager stated, "We increased flexibility by integrating multiple low-power wireless standards and various sensors," and noted that support for other cloud service providers will be added in the future.
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