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T T e eam 1 1 3 38 S ome e Assem embly Req equired ed E xplorer Post 1 1 0 01 1 0 0 F light Rea eadines ess Rev eview ew Brief efing Introduc ductions a and d F ligh ght Mission R n Roles V isesh P rim ary P


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SLIDE 1

T e T eam 1 3 1 38 S

  • me

e Assem embly Req equired ed E xplorer Post 1 1 01 1

F light Rea eadines ess Rev eview ew Brief efing

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SLIDE 2

Introduc ductions a and d F ligh ght Mission R n Roles

V isesh P rim ary P ilot in C

  • m

m and N ick M ission P lanner S pecialist /A lternate P ilot G unvir S coring C aptain L ucas A ircraft S pecialist /S afety S pecialist T im

  • thy

S trategic T echnician

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SLIDE 3

S ystem em O ver erview ew - F light t Meth thod S S tr trate tegy

W e considered two m ethods of flying and scoring points: 1 . F ly autonom

  • usly, then m

anually search for scoring item s (targets, debris, etc.)

  • 2. F

ly autonom

  • usly for found scoring item

s (while carrying balloons), locate accurate coordinates and drop balloons, then land to perform autonom

  • us takeoff and landing

3

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SLIDE 4

S ystem em O ver erview ew - F light Method Risk E val valuat ation

Decis isio ion Ri Risk Re Rewa ward

A utonomous search pattern G P S malfunctions, unable to pause/resume mission to write down coordinates C

  • nsistent/reliable searching for

scoring objects M anual searching L

  • ss of orientation, inconsistent

altitude, drift while recording coordinates A ble to recover from G P S issues, potentially faster speed

W e decided to em ploy a hybrid approach: m anually following a search pattern using loiter m

  • de provides

the benefits of both strategies - consistent search pattern with the ability to m ake m anual adjustm ents as needed. T his works by the M ission P lanner specialist giving the P ilot heading directions to m

  • ve the

right stick, and when som ething is found, the M

  • nitor O

bserver guides the pilot.

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SLIDE 5
  • E

xecute autonom

  • us tasks first,

mapping any targets seen on the way

  • U

se map to guide our pilot to the approximate locations of the targets to obtain precise G PS coordinates

  • U

se coordinates to drop balloons on designated targets using autonomous mission

  • A

ll 5 SA R targets located and classified

  • A

ll 10 waypoints captured

  • M

ission completed within 25-28 minutes flight time

  • A

utonomous takeoff and landing

  • A

t least one package (balloon) delivered successfully

F l F light T T asks E xpec ected ed Performance S ystem em O ver erview ew - Plan an an and Performan ance

5

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SLIDE 6

S ystem em O ver erview ew - Missi ssion P Planner Usa sage

  • G

et telem etry data from the aircraft

  • U

se the flight log to understand aircraft perform ance ○ D iagnose P roblem s ○ C

  • m

pare D ata

  • P

rogram autonom

  • us m

issions

  • M
  • nitor relevant aircraft telem

etry data

  • U

se M ission P lanner to C

  • ntrol S

ervo on Balloon M echanism (C am era S hutter approach)

  • C

heck for safety (arm /disarm , G P S lock, G P S satellite count, flight m

  • de check)

6

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SLIDE 7

S ystem em O ver erview ew - Mo Monitor Us Usage

W

ith our m

  • nitor we track the following:
  • G

PS L

  • ck
  • G

PS C

  • unt
  • Battery V
  • ltage
  • F

light M

  • de
  • L

atitude/L

  • ngitude

M

  • st of our decisions pertaining to safety and scoring are made by our whole

team using this information.

7

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SLIDE 8

S y S ystem S a S afety - Des esign S S trateg egies es

  • O

ur final design is a single balloon drop system

  • W

e used 3 nylon standoffs to firm ly attach a wood plate to the aircraft

  • A

3D

  • printed cylinder holds the balloon in place
  • A

single wood plate is on the servo, to secure the balloons until ready to be released

  • A

ctivating the “C am era S hutter” feature toggles the servo releasing the balloon and recording the location of the drop in m ission planner!

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SLIDE 9

S y S ystem S a S afety - O per erational S S trateg egies es

  • A

ll flights conducted with supervising adult

  • A

ll flights conducted in visual line of sight

  • A

ll flights conducted BE L O W 400 feet and within F A A regulations

  • N

O flights conducted without perform ing pre-flight inspection

  • N

O flights conducted in bad weather or bad visibility

  • N

O flights conducted over people or buildings

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SLIDE 10

S y S ystem S a S afety - Maint ntena nanc nce and nd C he hecklists

  • T
  • enforce safety our team

uses a series of checklists: pre- and post-flight.

  • C

hecklists ensure a safer, m

  • re successful flight.
  • A

ll parts of our aircraft are regularly inspected.

  • A

ll repairs are m ade with consent of all the mem bers.

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SLIDE 11

Dev evel elopmen ental T T es est - G r G round and nd Mission P n Performanc nce

  • A

ll of our tests were conducted at K ing F arm P ark in an open field

  • M

anual flight tests using our “hybrid” strategy and autonom

  • us flight went

well

  • W

e were consistently able to search for and locate search objectives and were also able to autonom

  • usly take off and

land

  • W

e practiced using our “M ap” m ethod to locate the general locations of targets in autonom

  • us m
  • de prior to

the search m

  • de

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SLIDE 12

S y S ystem E nha nhanc ncement nt - N ew ew Landing G G ea ear

  • T

he interface between the legs and the aircraft are 4 custom 3D

  • printed pieces
  • O

ur new landing gear ensures that we land upright 1 00% of the tim e!

  • T

he landing gear uses the sam e carbon fiber rods from the stock landing gear, but we cut them to achieve greater stability.

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SLIDE 13

C

  • rrec

ective A e Actions T aken en to Improve e E ffec ectiven enes ess o

  • f Mission

W

  • rked W

ell:

  • Single &

Balloon D rop System ○ Increased F light T ime and Improved Reliability

  • N

ew motor arm design keeping motor mounts aligned

  • Shortened Balloon H
  • lder

○ provides more balloon compression and less room for balloon movement

  • In tests able to locate, identify,

and drop balloons over targets autonomously D idn’t W

  • rk:
  • Initial D
  • uble Balloon D

rop System ○ Increased A mp D raw and D ecreased Battery L ife

  • M
  • tor M
  • unts M

isaligned to F rame ○ Increased V ibrations/C aused F ailsafe

  • Standing W

ave F

  • rmation in

Balloons ○ M ade Q uad U nmanageable in the A ir

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SLIDE 14

E videnc nce of Mission A n Accompl plishm hment nts

  • M
  • re than 20 successful flights which included carrying

balloons, autonom

  • us m

issions, and use of hybrid m ethod

  • S

uccessful identification of target objects

  • Balloons landing less than 1

0 ft from desired targets

  • S

afety protocols executed effectively to prevent unsafe deviations from the planned m ission when in autonom

  • us m
  • de
  • P

roblem s solved through effective team com m unication

14

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SLIDE 15

Pr Pre-Mis issio ion B Brie iefin ing - Person

  • nnel R

Resou

  • urcing &

& C

  • m
  • mmunication
  • ns

V isesh P rim ary P ilot in C

  • m

m and N ick M ission P lanner S pecialist /A lternate P ilot G unvir S coring C aptain L ucas A ircraft S pecialist /S afety S pecialist T im

  • thy

S trategic T echnician

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SLIDE 16

Pr Pre-Mis issio ion B Brie iefin ing - G

  • G
  • /N
  • -G
  • C

riteria a an and F al all Bac ack Plan ans

W e use checklists to ensure safety and m ake G

  • /N
  • -G
  • decisions, using criteria such as

Before F light

  • W

eather

  • A

irspace A ctivity

  • W

hether there are people on the field

  • Condition of Q

uad D uring F light

  • A

ircraft stability / functionality

  • W

ind Speed

  • Battery Condition
  • A

irspace A ctivity W hen one or more conditions is seen as a hazard we may

  • Return to L

and Immediately

  • Reschedule flight or travel to other fields
  • M

ake necessary plans to repair and inspect Q uad thoroughly

16

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SLIDE 17

W hat we l e lea earned ed!

  • C
  • m

pass C alibrations (“D rone D ance”)

  • L

earned m

  • re ways to apply m

ission planner ○ C

  • ntrol & D

rop S ervos

  • Basic F

light S afety

  • Built up soldering and wire splicing skills
  • L

earned to handle G P S Interference Issues

  • W

e also learned how to apply physics to solve problem s ○ M inim iz e V ibrations that cause rapid descent

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SLIDE 18

F uture S e S tep eps for I Improvem emen ent

  • A

nalyz ing quality of com petition perform ance

  • P

ractice, practice, practice! ○ M anual and autonom

  • us flight

○ M ission P lanner

  • A

rdupilot tuning and calibration

  • T

echniques to im prove G P S A ccuracy

  • M

axim iz e Balloon D rop A ccuracy

  • Increase understanding of the P

ixhawk P aram eters

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SLIDE 19

T hank you f for

  • r y

you

  • ur t

time!

Q uestions?

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