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Location reporting + voice calls

Smart Band

A wearable platform combining BLE, LTE and GNSS for location reporting and voice calls, supported by a mobile application and cloud services.

Overview

Smart Band is a connected wearable that combines Bluetooth/BLE, LTE and satellite positioning. It can report its location and support voice calls, with a mobile application and cloud services forming the remote software layer.

  • Connected Devices
  • Wearable
  • BLE
  • LTE
  • GNSS

The design includes a compact wearable assembly, embedded electronics and a USB 2.0 interface.

  • Smart Band board.

  • Smart Band wearable concept and PCB renders.

Product render of the Smart Band wristband with its side buttons and status indicators.

Challenge

Bring short-range communication, cellular connectivity, positioning and calling into a wearable form factor. The hardware, firmware and remote software need to work together around the device’s size and battery constraints.

What We Did

HTS’s project scope covered hardware and PCB design, embedded firmware, prototyping, and the supporting mobile and server software. The work connected the wearable electronics to the location and communication functions presented to users.

System

Smart Band — system parts and their roles
LayerFunction
Wearable electronicsIntegrate processing, wireless interfaces and battery-powered operation.
BLE connectionSupport communication with nearby compatible devices.
LTE and GNSSProvide cellular communication and location information.
Mobile application and cloudForm the remote interaction and data layer.

Technical Details

Smart Band — technical details
ParameterSpecification
Product formatWearable smart band
Short-range wirelessBluetooth/BLE
Cellular connectionLTE
PositioningGPS/GNSS
Cellular module shown in the designQuectel EG91-X
Communication functionsLocation reporting and voice calls
Wired interfaceUSB 2.0
Supporting softwareMobile application and cloud/server components

Result

The project brings wearable electronics, location reporting, calling and remote software together in one connected product design. It demonstrates HTS work across the physical device, embedded software and the application/server layer.

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