Chi Yang Lin

Chi Yang Lin

CEO, Astar Design Service Technologies

“The Proper Architecture of Internet of Things”


The Internet of Things (IoT, sometimes called the Internet of Everything) is the network of physical objects or “things” embedded with electronics, software, sensors, and connectivity to enable it to achieve greater value and service by exchanging data with the manufacturer, operator and/or other connected devices based on the infrastructure of International Telecommunication Union’s Global Standards Initiative. The architecture of IoT device is divided into Sensor Layer, Network Layer, and Application Layer. To design an IoT system, it is important to select a platform solution which can be easily customized for specific application and configured with proper network link(s) to communicate with IoT bridge/gateway/cloud service to operate.
Refer to the definition of IoT product categories as follows:

  • IoT Device – Simple to collect data including sensor and receive command from gateways or periodically to do control action.
  • IoT Bridge – Pass data from IoT devices to IoT cloud services and control IoT devices. Its key role is sensor hub or devices hub.
  • IoT Gateway / IoT Panel Gateway – Pass data from IoT devices to IoT cloud services and control IoT devices, but have panel capability.

Through the definition for each IoT product, it will be easy to identify and partition the IoT system and set the role on intranet and internet and know which SOC or IC solution is right solution.
For example, in a parking lot, video cameras can be as IoT devices and payment kiosk is IoT panel gateway. The data of video cameras should be protected by firewall. But payment or income summary data can transmit to HQ or Central Cloud Services through VPN or security http protocol.


In his career, Chi Yang has had extensive experience in leading large engineering teams developing telecommunication technologies for technology companies such as Acer, CISCO, Samsung, and VIA Technologies. Chi Yang also holds a Master of Science and is a frequent panel speaker at many Internet of Things conferences.