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.
Click image to enlarge
Wireless Checkpointing System for Runners
The Wireless Checkpointing System (WCS) unobtrusive record runners in a race when they approach a Checkpoint (CP). Unlike traditional
passive RFID tags used in running events, the Runner Tags (RT) are microprocessors powered, allowing real-time information such as speed
and elapsed time to be displayed on runner's smart phones.
WCS comprises of the Runner Tags (RT), the Checkpoints (CP) and the Base Station (BS). CPs are placed along the running route and record
RTs approaching them via short range wireless communication. The time-stamped recorded RTs are forwarded by the CPs to the BS in near
real-time via the cellular network, allowing race officials to easily track the runner's progress. WCS implements intelligence to
guarantee all RTs are read when they pass the CP, and are only read once. To minimize inventory, the CPs and BSs are identical: a switch
determines the mode of the hardware (CP or BS).
We designed, developed and tested the circuit, PCB, firmware and communication protocol of the Wireless Checkpointing System.
