HacDC Spaceblimp: Difference between revisions

From HacDC Wiki

Latest revision as of 00:27, 8 March 2018

A collection of stuff about HacDC's near space initiatives, including the Hackerspaces In Space Contest entry (2010).

Current Status

Project Spaceblimp is back! Spaceblimp has been a multi-discipline club effort to build, launch, track, and recover a High-altitude Balloon. So far HacDC has launched 6 Spaceblimps, with Spaceblimp 5 reaching a maximum altitude of 118,533 ft and Spaceblimp 6 reaching 104,023 ft on 15 October 2016. The next iteration is expected in Spring 2018.

Come be involved in Spaceblimp 6

Since Global Space Balloon Challenge 2016 (GSBC) just ended, there is no better time than now to start planning for participation in, but not limited to, the GSBC 2017 challenge. HacDC has had some preliminary discussions with the Naval Research Laboratory (NRL) regarding some of their STEM initiatives which align well with our Spaceblimp project. This presents a great opportunity for HacDC to collaborate with the NRL and local area schools to assist students in preparing for the next GSBC or other balloon events. Besides helping young minds grow, we could also expand in to other STEAM initiatives and work side-by-side with distinguished researchers and scientists from the NRL.

Supplies and equipment are not an issue. Hands on help is. We need embedded hardware, software, FPGA, and RF engineers, licensed amateur radio operators, project developers, crafts people, decorators, coordinators, outreach specialists and educators. However, no one with helping hands or a willingness to learn will be turned away.

History of the HacDC Spaceblimp Project

On Aug 7, 2010, we launched our first balloon: HacDC Spaceblimp 1. Its epic journey began well enough, but the antenna came loose somewhere around 60,000 ft and we never heard from it again. Until three months later, when a farmer found it in her field, called up a friend (who happened to be an engineer) and it came back home. The pictures are fantastic, but the telemetry data was lost -- it overwrote itself many times over before the batteries finally gave up.

Following (what we thought was) the loss of Spaceblimp-1, we scrambled and launched HacDC Spaceblimp 2 on Aug 21. It went flawlessly -- fast, light, and with good radio contact the whole way through. It may be the third fastest-ascending amateur radio balloon. We were disqualified from the Hackerspaces in Space competition because we went over budget, but they said we would have come in fourth if not. Sigh. But again, it was an inspiring success.

HacDC Spaceblimp 3 was successfully launched and retrieved on 13 Nov 2010 with a much more involved payload than previous versions. More cameras, HD video, more radios, an accelerometer, geiger counter, pressure sensor. Weight and price weren't constraints this time.

HacDC Spaceblimp 4 set the HacDC altitude record, topping out at 103,764 ft! This flight got fantastic video -- make sure to check out the two youtube links.

Insatiable and unstoppable, the HacDC team puts up HacDC Spaceblimp 5 on July 9, 2011. We bought a yet-bigger balloon to try to get higher, and so: 118,533 ft!

HacDC Spaceblimp 6 was launched in October 2016, reaching 104,023 ft with HD video, instrumentation and various GPS radio trackers. It was the first Spaceblimp that captured video of its own balloon and parachute. It was recovered in record time just 20 minutes after landing despite failure of its primary radio transmitter (the backup worked!) and the video is now on YouTube.

HacDC Spaceblimp 7 is planned for late March 2018 with various GoPro HD cameras, a new TrackSoar GPS/Radio tracker, three Raspberry Pi Zeros and a gyroscopic stabilizer.

If you want to get involved or learn more or contribute to the program...Subscribe to the Spaceblimp email list

@@ Line 1: / Line 1: @@
-[[Category:Ongoing_Projects]]
+[[Image: sb5_launch_still.jpg | 300 px]] [[Image: sb3_IMG_6899_small.jpg | 530 px]]
 A collection of stuff about HacDC's near space initiatives, including the ''Hackerspaces In Space'' Contest entry (2010).
+=Current Status=
-==Documentation==
+Project Spaceblimp is back! Spaceblimp has been a multi-discipline club effort to build, launch, track, and recover a [https://en.wikipedia.org/wiki/High-altitude_balloon High-altitude Balloon].  So far HacDC has launched [[Template:Spaceblimp|6 Spaceblimps]], with [[HacDC_Spaceblimp_5|Spaceblimp 5]] reaching a maximum altitude of 118,533 ft and [[HacDC_Spaceblimp_6|Spaceblimp 6]] reaching 104,023 ft on 15 October 2016. The next iteration is expected in Spring 2018.
-'''Spaceblimp-2'''
-Flight date: 8/21/10
-Time of liftoff: 10:47 (All times are GMT-5)
-Time of touchdown: 11:49
-Time of recovery: 12:20
-Total flight time: 1:02 (62 minutes)
-Liftoff to recovery time: 1:33 (93 minutes)
-Touchdown to recovery time: 0:31 (31 minutes)
-Weight of payload/chute: 1lb 13oz
-Total cost of launch:
-'''Airframe & Rigging''':
-Balloon:  800g Kaymont/Totex latex weather balloon cost: $?
-Parachute Cord: 250-lb test Dacron line
-Balloon Cord: 50-lb test Dacron line
-Fill: 180 cubic-feet Helium - cost: $90
-Chute: Rocketchutes flat 24" - cost: $9
-Capsule:  Insulated lunch pail (free, valued at ~$7)
-'''Payload''':
-Canon model PowerShot SD300 running CHDK (Canon Hack Development Kit) intervalometer script - cost: $20
-Canon Li battery cost: $3.25
-Canon 2GB SD card: $6
-Falcom (uBlox based) GPS  receiver + Serantel Antenna module - cost $47
-Radiometrix VHF Narrow Band 300mW transmitter - cost $38
-Ultralife U9VL-X Lithium-Manganese Dioxide non-rechargable battery cost: $7
-Flight computer/Terminal Node Controller (TNC) - cost $19
-[http://www.flickr.com/groups/spaceblimp/pool/with/4922202931/ HacDC Spaceblimp Flickr Group Pool]
-[http://aprs.fi/?call=w3hac-11&dt=1282348800&mt=roadmap&z=11&timerange=3600 / aprs.fi Flight Map]
-'''Some details on the avionics''':
-Our balloon carried a minimalist avionics package consisting of a custom built APRS tracker and a Canon PowerShot SD300 digital camera.
-The camera is configured to take pictures every 20 seconds using CHDK (http://chdk.wikia.com/wiki/CHDK) and one of the stock intervalometer scripts. It is powered by its own rechargeable lithium battery and operates independently of the tracker.
-The tracker is based around an atmega328p AVR microcontroller, running code derived from an open source AVR based APRS tracker called the WhereAVR (http://garydion.com/projects/whereavr/). By updating the sine wave generation code to use filtered 7-bit pulse width modulation in place of the 4-bit resistor network, we were able to improve tone quality with a reduced part count. A few additional components were added, including an I2C eeprom for local backup of flight data, external and internal I2C temperature sensors, and a cutdown MOSFET for switching power to a short strip of nichrome wire coiled around the balloon line (the cutdown system was not used in our final flight because we were apprehensive about the complications it added to the balloon rigging).
+= Come be involved in [[HacDC Spaceblimp 6|Spaceblimp 6]] =
-To keep things light, compact, and simple, we designed a surface mount circuit board to integrate all of the trackers components with a Falcom FSA03 GPS module and a 300mW Radiometrix HX-1 144.39 MHz transmitter. The board was fabricated using the toner transfer method and hand soldered.
+Since Global Space Balloon Challenge 2016 (GSBC) just ended, there is no better time than now to start planning for participation in, but not limited to, the GSBC 2017 challenge.  HacDC has had some preliminary discussions with the Naval Research Laboratory (NRL) regarding some of their STEM initiatives which align well with our Spaceblimp project.  This presents a great opportunity for HacDC to collaborate with the NRL and local area schools to assist students in preparing for the next GSBC or other balloon events.  Besides helping young minds grow, we could also expand in to other STEAM initiatives and work side-by-side with distinguished researchers and scientists from the NRL.
-For an antenna we used the common 300 ohm twinlead j-pole design (http://www.qsl.net/wb3gck/jpole.htm), tuned as close as possible for use on our frequency (144.39 MHz) and fed with a short length of 50 ohm coax cable for routing/strain relief.
+Supplies and equipment are not an issue.  Hands on help is.  We need embedded hardware, software, FPGA, and RF engineers, licensed amateur radio operators, project developers, crafts people, decorators, coordinators, outreach specialists and educators.  However, no one with helping hands or a willingness to learn will be turned away.
-The tracker is powered by a single lithium 9v battery, and regulated down to 5v and 3.3v by linear regulators on the board. The typically undesirable loss of power to heat with these regulators is useful in this case for warming the electronics in the extreme cold temperatures encountered during the flight.
+=History of the HacDC Spaceblimp Project=
+* On Aug 7, 2010, we launched our first balloon: [[HacDC Spaceblimp 1]].  Its epic journey began well enough, but the antenna came loose somewhere around 60,000 ft and we never heard from it again. Until three months later, when a farmer found it in her field, called up a friend (who happened to be an engineer) and it came back home.  The pictures are fantastic, but the telemetry data was lost -- it overwrote itself many times over before the batteries finally gave up.
-Each chase vehicle had a radio tuned to 146.415 for simplex communication between the vehicles, and another radio tuned to 144.390 for receiving packets from the balloon. For packet decoding we used radios with built in TNCs or laptops with external modems/soundcard modems and TNC software (Soundmodem and Xastir for Linux, AGWPE and UI-View for Windows).
+* Following (what we thought was) the loss of Spaceblimp-1, we scrambled and launched [[HacDC Spaceblimp 2]] on Aug 21.  It went flawlessly -- fast, light, and with good radio contact the whole way through.  It may be the third fastest-ascending amateur radio balloon.  We were disqualified from the Hackerspaces in Space competition because we went over budget, but they said we would have come in fourth if not.  Sigh.  But again, it was an inspiring success.
-==Press==
+* [[HacDC Spaceblimp 3]] was successfully launched and retrieved on 13 Nov 2010 with a much more involved payload than previous versions.  More cameras, HD video, more radios, an accelerometer, geiger counter, pressure sensor.  Weight and price weren't constraints this time.
-===Email from Heather Goss (8/25/10)===
+* [[HacDC Spaceblimp 4]] set the HacDC altitude record, topping out at 103,764 ft!  This flight got fantastic video -- make sure to check out the two youtube links.
-(DCist, http://dcist.com/profile/dcist_heather/posts)
-"I'll probably run most of this as a straight interview -- if it helps, answer lengths of a sentence or two, to a paragraph are usually good, unless it requires a more detailed answer.  Can't wait to hear more!
+* Insatiable and unstoppable, the HacDC team puts up [[HacDC Spaceblimp 5]] on July 9, 2011.  We bought a yet-bigger balloon to try to get higher, and so: 118,533 ft!
-*Can you tell me a little about HacDC? How did you get involved?  What kinds of other big projects have you done?
+* [[HacDC Spaceblimp 6]] was launched in October 2016, reaching 104,023 ft with HD video, instrumentation and various GPS radio trackers. It was the first Spaceblimp that captured video of its own balloon and parachute. It was recovered in record time just 20 minutes after landing despite failure of its primary radio transmitter (the backup worked!) and the video is now on YouTube.
-*Tell me about Hackerspaces in Space. What was the goal? How many groups were involved?
+* [[HacDC Spaceblimp 7]] is planned for late March 2018 with various GoPro HD cameras, a new TrackSoar GPS/Radio tracker, three Raspberry Pi Zeros and a gyroscopic stabilizer.
-*What was your experience building the spaceblimp?  Did you have any interesting challenges to overcome?  How long did it take to build the blimp?
+* '''If you want to get involved or learn more or contribute to the program...[http://hacdc.org/mailman/listinfo/spaceblimp Subscribe to the Spaceblimp email list]'''
-*What was launch day like?  (I'm curious more about everyone's feelings/reactions than a blow-by-blow of the day.  Also can you give me the nitty gitty -- time, location, how long did it run.)  Did anything surprising or crazy happen?
+=Related Links=
+* [http://www.flickr.com/groups/spaceblimp/ HacDC Spaceblimp Flickr Group]
+* [https://www.flickr.com/photos/itechgeek/collections/72157627971098680/ All HacDC Spaceblimp photos (hosted on ITechGeek's Flickr)]
-*What were the results of HacDC's launch in particular?  Was it successful?  How high did it go? And were you able to recover your payload?  Did any other blimps achieve something spectacular?
+GPS visualizations of balloon trajectory from the Flickr Group (made with GPS Visualizer http://www.gpsvisualizer.com/):
-*What are the applications of the spaceblimp project? (What kinds of research can be done with blimps, and/or can even the process of developing new near-spacecraft like this help us in other ways?)
+[http://www.flickr.com/photos/79273063@N00/4946912327/ Google Earth GPS trajectory visualization] and
+[http://www.flickr.com/photos/79273063@N00/4947501800/ Google Maps GPS trajectory visualization]
-"If there's anything else you want to add, please let me know!  Also, please send along any helpful links (I've got the ones to HacDC, Hackerspace, and the Flickr page), as well as a short bio describing you and anyone else who responds.  Thanks!"
+<noinclude>
+{{Template:Spaceblimp}}
+</noinclude>

Main Page	Press Page	First Launch (Found)	Second Launch (Successful)
Third Launch (Successful)	Fourth Launch (Successful)	Fifth Launch (3% short of goal)	Sixth Launch (Successful)	Seventh Launch (Successful)