Kagawa-university :CoolRunning
[CanSat name]
CoolRunning
[assistant professor]
Kimihiro Noumi
[member]
Yusuke Saiso,
Osamu Kitagawa,
Takanori Takahasi
[CanSat Introduction]
Coolrunning is equipped only basic function to flyback.
Coolrunning decides traveling direction by using data on GPS.
After Coolrunning decides traveling direction, Coolrunning operating parafoil by using two servo motor.
While flying, Coolrunning downlink telemetry data by Amateur.
By repeating this process, Coolrunning aim for target.
[Ingenuity]
Coolrunning has two servo motor compared with last year's.
Therefore batteries have bigger capacity than last year.
As a Result, our cansat is just order weight (350g) by trimming weight frame because it follows that heavy weight.
At the first fright, impact of launch is very hard and element on the communication system circuit was broken and found out Bug in program. So, downlink wasn't success and data couldn't recorded in ROM..
Before the second fright, we exchanged communication system circuit for the new one and rebuilt program. While flying, data downlink and record in ROM was success.
[Result]
At the first fright, data downlink and record in ROM wasn't success.
At second fright, first cansat can't operate parafoil because GPS is not working.
A few minutes later, GPS is working.
The cansat gets positioning data and it cans flyback.
The cansat turned right and left while flying.
After landing, we lose contact with our cansat but when we approach the landing point, the communication restarted.
Data is recorded in ROM and we make a graph by positioning data and activity log data.
As a result, cansat operated motor as defined in algorithm. But parafoil had trouble in flight performance. Finally our cansat was followed by wind. Finally, our cansat landing 4.5km from the target point
[Impressions]
Our cansat lacked credibility because we couldn't plan enough to develop cansat and examine cansat.
In the future, it is necessary to develop according to the plan.
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