Grid IoT Reference Design: Connecting Circuit Breakers and Sensors to Other Equipment using Wi-Fi®
Description
This reference design showcases integrating Wi-Fi® capability to enhance connectivity in grid equipment for asset monitoring using the CC3220 device: SimpleLink Wi-Fi and IoT: single chip wireless MCU with integrated network processor and applications processor. The design enables the capability to setup a Wi-Fi network or connect to an external network: transfer data and optimize power. Data transfer scheme includes sending/receiving control: status: settings: firmware updates over the air between devices or to the cloud. Switching the device between always connected: intermittently connected: and hibernate mode optimizes power consumption for grid applications.
Features
- Wi-Fi Connectivity: Wi-Fi radio with integrated network processor and applications processor (ARM® Cortex®-M4) for internet of things (IoT) integration into industrial and residential equipmentSingle system-on-chip (SoC) optimized for performance and sizeChip-level: Wi-Fi Alliance Wi-Fi® CERTIFIED™ Provisioning made easy with SmartConfig™ in addition to application point (AP) provisioningSystem architecture:Two connection schemes: Connection to external AP (device as STA): device as APData transfer schemes: Always connected: intermittently connectedPower consumption: Optimized for wired and battery operationAlways Connected: Intermittently Connected: Device low power modes: Hibernate ( Security features:128-bit unique device ID: secure boot of MCU image: internal HTTPS server for AP provisioning: MQTT over TLS: secure over-the-air (OTA) update
Applications
- Fault indicator (FI)
- Residential breakers
- Solar arc protection
- Smart combiner box
- Remote power distribution automation
- Grid asset monitoring
- Off-highway vehicles HMI & display
- Compact relay
- Contractor circuit
- EV charging station HMI module
- Substation automation