jianling weng - hardware design and development for wearables
TRANSCRIPT
Hardware Design and Development for Wearable TechnologiesDeveloping World’s First Smart Clasp - LINK™
Introduction Who are we?
Wearetec Inc is a Canadian startup company based in Toronto Ontario
Introduction What are we developing?
LINK – world’s first smart clasp
Topics Mechanical Design of LINK LINK Design Strategy Hardware Design Considerations Software Design Considerations
Mechanical Design of LINK Bi-folding Clasp Pushbutton Locking Mechanism Worn Interior of the Wrist Curved Surface for Comfort Stainless Steel Casing/ Curved Sapphire
Glass for Toughness
Mechanical Design of LINK PMOLED full color display Capacitive, Multi-touch touch screen RF connectivities Heptic Feedback Motor Battery aiming 3~400mAh
Mechanical Design of LINK Typical smart watches are designed
from the electronics out LINK need to be highly miniaturized
Hardware Design Strategy Stage 1: Hardware concept proofing
prototype Stage 2: Device concept proofing
prototype Stage 3: Production ready prototype
Stage 1 of LINK Design 4-layer, standard density PCBA QFN package ICs(MCU, BLE SoC, etc) Fine Pitch/Low Profile Connectors Debugging/Programming Interface
Stage 2 of LINK Design 6-layer Very High Density PCB Provision of Bendable/Partial Flexible
PCB WLCSP IC and 0201 Discrete Packaging Fine Pitch/Low Profile Connector FPC Cables
Stage 3 of LINK Design Bendable Very High Density PCB Integrated FPC cables for Display and
Touch Screen Customized Battery Pack
Hardware Design Considerations Graphic User Interface System MCU and Peripherals Battery and Power Management Sensors Bluetooth/NFC Connectivity EMC, Usability and Reliability
Display Interfaces MIPI Intel 8080 SPI
Touch Screen Interface I2C Protocol Multi Touch and Gesture Recognition
Battery and Power Management 300mAh Li-ion Battery Power Saving Modes BLE SoC + Main MCU Duo Processor
Structure
Bluetooth Connectivity Bluetooth Low Power Notification from Smartphone App Quick Response to Smartphone App Distance Monitoring/Alarm Audio Streaming Other Data Exchanging
NFC Connectivity Mobile Payment Solution Secure Access Control Contactless Control
Sensors/Peripherals Ambient Light Sensor 6-DOF Motion Sensor
3-axis Accelerometer and 3-axis Gyroscope Optional 3-axis Magnetometer
Audio interface Optional Image Sensor Optional Health Monitor
Body Temperature, Pulse Rate, Blood Pressure and Oxygen Saturation
Related Software Design in LINK Smart Watch Fitness Band Smart Phone Accessary
Software Design Challenges and Solutions Multicore Processing (Main MCU + BLE
SOC) GUI (PMOLED + Multi-Touch Screen) RTOS+API Low Power Software Design Memory Size Constraints (Flash and
RAM) Multi Platform API Support (Android, IOS
and Windows)
LINK Specific Challenges Small Screen Size Graphics Small Screen Size Gesture Recognition Low Power RTOS and APIs with Limited Memory
Resources Firmware Over-the-Air Upgradable
LINK Software Design Considerations Main Processor
FreeRTOS emWin Middleware LINK APIs
BLE SoC BLE stack LINK Battery and Power Management BLE LINK APIs
APP Development Wearatec Inc. is seeking partnership
with software developers or software developing companies
Thank You! Questions?