A high risk factor for this project is training the network to completion (a very time consuming task) and then testing it with the radar data only for it to not work due to the differences in training and test data. To mitigate this risk, Linsey spoke with researchers in Belgium this week to better understand the data we are training the network on. We learned that we must construct range-doppler maps from our radar data in order to improve image resolution and successfully detect humans. By learning from these researchers, we can make our data better for the network and thus better for detecting humans. There aren’t currently any contingency plans in place. Because Angie has already started collecting data using the radar and Linsey has confirmed the dataset, we will be able to soon compare our own range-doppler maps and the dataset’s maps to ensure a smooth integration process on this end.
We added a temperature sensor and speaker to our design. Since our use case is reaching areas where traditionally used infrared can’t (aka fire SAR missions), it’s extremely important that our drone attachment can withstand high temperatures, since fires can measure around 600 degrees Celsius. We know that the plastic chassis and radar will start deteriorating at 125 degrees Celsius. To stop this from happening, our temperature sensor will alert the user when the temperature reaches 100 degrees Celsius. This alert will be shown through our web application. On the victim side of our application, the speaker will emit a loud beeping noise. By making victims aware of the device’s presence, they can be cued to wave their arms, which will help our system detect them more easily by the Doppler shift. The temperature warning system will make our device more user friendly and help ensure the functionality of our device. The beeping noise helps our device function better as well by alerting victims that it’s there. The cost of the temperature sensor and speaker is very low and will have no impact on our budget.
No changes have occurred to the schedule.
To develop our design, we employed the following engineering principles: usability, ethics, and safety.
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