ASTRI’s innovation that protects the elderly from wandering risk wins prestigious Asia-Pacific Eldercare Innovation Award

  • ASTRI, in partnership with two other HKSAR Government-subvented R&D centres, developed a tracking and monitoring system that protects vulnerable groups like the elderly. The system, which has been applied in 11 elderly day care centres of the Tung Wah Group of Hospitals (TWGH), has been chosen as the “Best Smart Care Technology Solution” at the 6th Asia Pacific Eldercare Innovation Awards. The award ceremony was recently held in Singapore.

    TWGH, the end-user of the system, had nominated this “Installation of anti-wandering system for Day Care Centre for the Elderly” solution for this award. The system which works simultaneously through built-in RFID, GPS and BLE trackers. It greatly reduces the risk of vulnerable senior citizens being missing from elderly homes or other care centres. In addition to making life less stressful for the caregivers, the system also facilitates the improvement of elderly-caregiver ratio and overall service quality. Most importantly, it allows the elderly to be more involved in outdoor activities without the risk of getting lost.

    The project has been a collaborative effort of three Government-subvented institutions: Hong Kong Applied Science and Technology Research Institute (ASTRI), Hong Kong Logistics and Supply Chain MultiTech R&D Centre (LSCM) and Hong Kong Research Institute of Textiles and Apparel (HKRITA). These quangos, bringing together their collective strength and expertise, developed a tracking system to improve elderly-care. While LSCM contributed the RFID and GPS tracking system, HKRITA designed a special vest which houses the RFID tracker, GPS tracker and the BLE (Bluetooth Low Energy) device hardware. ASTRI provided the proximity monitoring system through BLE, responsible for the whole system integration, hosting the main server. ASTRI also conducted the system’s trial at TWGH facilities and Wong Chung Tong Day Care Centre for the Elderly.

    The ‘6th Asia Pacific Eldercare Innovation Awards’ is widely revered as the ‘Oscar for the Eldercare sector’ in the Asia-Pacific region. This year, the award nominees and participants represented 19 countries and territories from across the region.


    Handheld Video Endoscope/ Laryngoscope

  • ASTRI has worked with the healthcare industry to develop a low-cost, handheld, connected Upper Gastrointestinal Endoscope. With its high definition disposable camera design, the device can stream real-time video to large displays, helping the process of diagnosis with no need for complicated sterilisation.

    Handheld video endoscope with viewer in proof-of-concept stage

    Key features:

    • Competitive cost advantage in an emerging market
    • Real time video streaming to large displays
    • High definition disposable camera design which eliminates complicated sterilisation

    Digital Pathology Analytics Platform

  • ASTRI is developing an image analytics platform for digital pathology. It is based on a scalable medical image database, distributed parallel computing engine, and a powerful application development environment for Computer-Aided Diagnosis (CAD). The platform can support efficient management of medical image data. It also facilitates reliable web-based digital pathological information exchanged in telediagnosis and agile development of CAD applications.

    Data Management System Architecture

    Key features:

    • Big data and deep learning platform
    • Agile computer aided diagnosis application development
    • Cancer screening
    • Telediagnosis

    Low Power ADC

  • ASTRI has established a family of low power ADC IPs.

    12/14 bit low power Successive Approximation Register (SAR) ADC delivers low power and low cost analog to digital conversion of reasonable performance for portable medical and sensor devices. ASTRI’s IP is already in mass production for various applications.

    Key features:

    • Sampling rate up to 1Msps
    • Ultra low power
    • ENOB = 11.2b
    • Silicon proven: TSMC 0.18um, TSMC 0.25um, SMIC 0.13um


     24-bit sigma delta ADC is based on sigma delta technology intended primarily for instrumentation applications. It consists of a second-order three-bit quantizer noise shaping modulator and digital decimation filter.

    Key features:

    • Low input-referred noise: 1.5uVrms
    • Multi-bit feedback DAC with Data-Weighted Averaging to achieve low power consumption
    • Unity feedforward architecture for low distortion
    • 2nd order modulator loop, stable for full scale input
    • 1Ksps sampling rate
    • Internal or external reference
    • SPI interface

    SPO2 analog front-end

  • The SPO2 analog front-end is a fully integrated analog solution for medical pulse oximeter applications.

    It supports flexible pulse sequencing and timing control from 200Hz to 1KHz for individual LED and up to 3 LEDs at same time.

    Key features:


    • Integrated LED driver (H-Bridge, push or pull)
    • 8 bit programmable LED current range from 25mA, 50mA, 75mA to 100mA
    • Independent LED3, LED2, LED1 current reference


    • Input-referred noise: 50 pA (RMS) (at 5 μA powerdown current)
    • 5 noise-free bits (at 5 μA powerdown current)
    • Analog ambient cancellation scheme with selectable 1 μA to 10 μA ambient current
    • I-V amplifier with seven separate LED2 and LED1 programmable feedback R and C settings
    • Reconfigurable 12/16/20 bit ADC depending on applications

    Uncooled infrared micro-bolometer read out IC

  • ASTRI’s uncooled infrared micro-bolometer readout IC is a high resolution, low power consumption and low noise signal sensing IC for deployment in thermograph applications, such as night vision, surveillance and medical imaging, which require high resolution imaging capability.

    Key features:

    • 640 x 480 pixel focal plan array
    • Pixel pitch = 20um x 20um
    • Uncooled operation (with or without thermo-electric cooler)
    • Adjustable integration time
    • Adjustable integration capacitors
    • 2 analog outputs available
    • Digital selection mode via SPI
    • Power consumption < 360mW (without thermo-electric cooler)
    • Output dynamic range: 1.0V to 4.0V
    • On-chip temperature sensor
    • Typical responsivity: 10mV/K
    • Frame rate up to 60Hz
    • Row by row reading mode
    • User defined windowing capability


    Low power wireless electrocardiography (ECG)

  • ASTRI’s low power wireless ECG module allows anyone with a smartphone, tablet or PC to monitor their heart health anytime anywhere with ease.

    Key features:

    • Fully integrated analog front-end IC for ECG applications
    • Configurable 12 bit SAR ADC
    • Programmable instrumentation amplifier
    • Integrated digital low pass filter
    • Compact module size (60mm x 38mm x 22mm)
    • Support Bluetooth wireless connection

     ASTRI received the IoT Technology Gold Award and Best IoT Product Award in the Hong Kong IoT Awards 2014, and the Guang Dong – Hong Kong IoT Award 2014, respectively.