This is a battery powered, portable, Internet of Things (IoT) based solution for measuring concentrations of biological and non-biological chemicals
and displaying real-time results on the web. Custom chronoamperometry waveforms are remotely programmable and updatable in real-time.
We designed and developed the hardware, firmware, cloud backend and dashboard of the system.
Applied technology: Embedded systems, embedded C, Bluetooth Low Energy (BLE), mixed-signal PCB design, signal conditioning, HTTPS, TCP/IP, HTML, CSS, PHP, MySQL, Javascript
Click image to enlarge
Traffic Light Controller Observer (TLCO)
The Traffic Light Controller Observer (TLCO) is a battery-backed system that monitors traffic light controllers in real time for green lights, flashing amber,
mains power loss and system tempering. TLCO also provides a secure, web-based, remote method to reset the traffic light controller in the event of malfunction.
Multiple TLCOs can work in tandem to provide traffic situation awareness even across different traffic light control systems.
We designed and developed the hardware, firmware, cloud backend and web dashboard of the system.
This is a battery powered, wearable, wireless system to acquire light intensities across the visible spectrum for studying the effects of non-broad-spectrum
artificial lighting to the human circadian rhythm. The meter is controlled by the App, which gathers the information and pushes it to the cloud for storage and
subsequent analysis.
We designed and developed the hardware and firmware of the system.
Applied technology: Embedded systems, embedded C, Bluetooth Low Energy (BLE), mixed-signal PCB design, ARM Cortex-M4F, signal conditioning, digital signal processing (DSP)
Click image to enlarge
IntelliRehab
IntelliRehab is a wearable multisensor wireless system for tele rehabilitation of post stroke and physical injury. The sensor readings are processed to provide
realtime movement information and transmitted via Bluetooth to smartphones and tablets to deduce limb motions, which are fed to the cloud.
Physicians and physical therapist are then able to remotely assess rehabilitation progress, and have the capability of adjusting physical exercise routines
whenever suitable.
We designed and developed the hardware, firmware, Android app, Android games and cloud end of the system.
Applied technology: Embedded systems, position location, embedded C, 4G, Bluetooth Low Energy (BLE), Android, mixed-signal PCB design, ARM Cortex-M3,
signal conditioning, digital signal processing (DSP), Unity, HTML, PHP, MySQL, cloud computing
Click image to enlarge
Equine Heartrate Monitor
EHM is used to acquire and process equine electrocardiogram (ECG) to determine heartrate, stride length and speed. It is a battery powered, wearable device that
compute the parameters in realtime and transmitted via the cellular network to the cloud.
We designed and developed the hardware, firmware and cloud end of the system.
Applied technology: Embedded systems, Embedded Linux, embedded C, 4G LTE, GPS, Bluetooth Low Energy (BLE), mixed-signal PCB design, ARM Cortex-M0, signal conditioning, digital signal processing (DSP)
Click image to enlarge
GLACSWEB Subglacial Wireless Sensor Network
The GLACSWEB system is used to monitor surface and basal glacial behaviour using
Wireless Sensor Networks for understanding the dynamics
of glaciers and global warming. Wireless sensor probes were placed on, in and under glaciers. Temperature, pressure, stress, conductivity,
reflectivity and orientation measurements were recorded by the probes and transmitted to a base station on the glacier surface.
We designed, developed and tested the circuit, PCB, firmware and communication protocol of the Wireless Sensor Probe.
Applied technology: Wireless Sensor Network, RF communication, Communication protocols, Embedded Systems, Mixed signal PCB design
Signal conditioning, Ultra low power, Switched Mode Power Supply, GSM, GPS, PIC, ADC, SPI, I2C, RS232, Embedded C, Visual Basic
Dr Royan Ong designed, developed and implemented the hardware, firmware and software for the
Wireless Sensor Probes and
Base Station of GLACSWEB for seasons 2003, 2004 and 2005, as a Research
Assistant on the project.
