Saturday, 20 July 2019

2018 - where did it all go - just realised I didn't do one of these

I'm slipping - so bit late and a bit brief but this is what we were up to in 2018!

Busy, busy, busy.....the journey continues.

Name of project
Uncertainties at start
Issues arising during project
Further work
Ongoing/Ended
CROAC – app to analyse Costa Rican frog calls.
Could we develop an analysis package to run on mobile phone for identifying calls in the wild.
Difficulties with running complex analysis fast enough on mobile devices.

Complexity of the background noise to the calls. Resulting in false calls.
Algorithm needs refining to help reduce false calls.


Ongoing
Rail infrastructure health monitoring.
Could the health of railway infrastructure (points, bridges, tunnels etc) be monitored through their changing sounds.
Difficulty getting access to real railway infrastructure. So we used a model railway to prove the concepts and think through the sensors required.

Preliminary analysis showed simplest analysis would be to focus on bridges.

Need to develop sensor to a level where it can be left for a period of time in the field.

Need to prove we can identify signals for real railway bridges.
Ongoing
PACE – air-conditioning control system.
Could a new air-conditioning approach be controlled using the new LoRA radio communication protocol and a simple control device.
Control of the peltier cooler was non-trivial requiring significant hardware modifications.

LoRA communication setup proved less effective that originally anticipated.
May look to use more standard communication methods.
Ended – proved LoRA is not right for this system.
Wheel slip analysis
Could a big-data approach be used to analyse rail wheel slip occurrences.
Access to appropriate data was difficult to obtain.

Data was provided by Siemens in the end but then we ended up with too much data. Effort then had to be expended refining this data.
Initial analysis has demonstrated the technique. Larger data sets are now needed to refine the algorithms.
Ongoing
FOSSA – satellite swarm communications. Effectively he ‘glue’ to communicating and transmitting data from remote monitoring devices using cheap satellite systems.
Could a cube-sat be developed to use the new LoRA communication protocol. Built and launched at low cost.
Difficulties encountered applying the LoRA protocol to the satellite communication time window.

Power consumption on the satellite required special design of solar cells.
The cube sat now needs final build then tested and commissioned for flight
Ongoing – launch planned for Sept 2019