Timing system in hand and working

About a month ago, we announced that Sweepstakes and the Buggy Alumni Association had teamed up to select and fund a new and improved timing system for buggy.  We are renting the system for an extended period this year so that we have time to thoroughly test it in the buggy context and make sure that it is better than the old system.

The system arrived over spring break, and yesterday evening, we learned how to assemble the hardware and operate the software.  The results were an excellent start. Both the hardware and software have a definite learning curve, but in a couple of hours we had the whole system unpacked, set up, and recording timed photo-finishes. The picture at right shows my dog Ruby edging BAA president Carsen Kline at the finish by 0.28 seconds after a 43 second race around the back yard. The quality of the images will improve in our real implementation as we learn which lens is most appropriate, and do things when it’s not getting dark out.

We are planning on doing our next test (this time with real buggy finishes) at freerolls on the weekend of March 27th and 28th. Thanks so much to everyone who has contributed financially to the Buggy Alumni Association in our first 18 months. Being able to materially improve the buggy experience for both current students and alumni is really exciting.

Matt Wagner talk @ 7pm today

Quantum Leap
“Everything I Know About Innovation I Learned from Buggy”

by Matt Wagner
CIT & Spirit ’87
a founder of Spirit Buggy, builder of Quantum Leap – the 20 year record holder

7:00pm March 1st (Today!)
Adamson Wing, 136A Baker Hall

official lecture series announcement here for more info

Matt has given earlier versions of this talk before raceday the last couple of years, but it is a busy time for most buggy folks, so now is a great chance to see it.  The talk is really interesting from a buggy history perspective, but he also has a lot to say about buggy from a real world perspective.  Next time your parents ask you how all of this buggy nonsense is going to help you get a job, you’ll have answers!  No buggy has held a longer reign over the sport, and no team has risen as quickly as Spirit did.  Hear how it happened from the man that was at the center of both accomplishments.

Raceday timing system upgrade

One of the BAA’s biggest goals this year was to use our human and financial resources to improve on the timing system we use in buggy.  After all the work that teams put into buggy, there is nothing more important than accurately and reliably recording their time (ok, safety is always more important … blah blah blah).  We’re running a race against the clock here, we’ve gotta be able to trust the clock.

Last year, the company sweepstakes has paid to do the timing for 20 years showed up to raceday short on staff so the BAA helped out and filled in.  What we got was a close look at the system in use and a big list of things we’d like to see improved.

What we are improving on

Technology weaknesses

  • Starter gun failures : as we’ve all witnessed, the starter gun has a failure rate of 2 -5 times per year.  This results in confusion and inequitable starting conditions for the teams that are affected.
  • Starter gun – timer synchronization : the current system relies on someone pressing “start” on a timer box when the gun goes off.  This introduces unnecessary human error on one end of the timed period.
  • Finish signal failures : the system buggy has relied on for the past 10+ years uses an RF transponder in each buggy and a wire loop (in a mat on the road) that detects those transponders when they pass by.   If a buggy crosses the line and no signal is detected, there is no recourse other than using the manual stopwatch backup times.  Some buggies are more prone to missed signals than others depending on material choice and thickness and transponder location.  Nobody deserves to have their time missed.
  • Transponders are inconvenient : Sweepstakes has to orchestrate the distribution to every team.  Teams have to find a place to secure it that doesn’t interfere with the driver or the steering.  Raceday is no time to add parts to a buggy.
  • Inaccuracy of the crowd-facing clock : the big black and yellow clock is manually matched to the official time as it is running, usually a minute or so into each heat.  This means that the time people see when the buggy crosses the line is highly unofficial, and has been off by large margins in the past.
  • Delay in reporting official times : because it is somewhat time consuming to recall official times from the current system, the times posted on the leader board are usually the backup manual stopwatch times.  In very close races, this could result in a reversal of rankings once the official times are known.

Personnel weaknesses

  • Rotating staff : because the company previously contracted often has other races on the same weekend, the same timers are not always available for prelims and finals.  This discontinuity introduces opportunities for error when it matters most, on finals.
  • False start enforcement : outside timing professionals have not in our experience been sufficiently knowledgeable about the rules and procedures of a buggy race start.  Because none of the sweepstakes committee is in the immediate vicinity of the start line, the starter must be able to manage false start and restart situations in accordance with the rules.

The new solution

Continue reading

Rolls Statistics Fall ’09

With another semester in the history books, it’s time for the BAA to play historian/statistician and make note of a few numbers that sum up the semester.   As with the last edition of rolls statistics, the idea is just to document things and to give the orgs and sweepstakes some feedback on how things are going.

Fall 2009 (with the previous 2 semesters for comparison) looked like this Continue reading

Composites Forum Today

This is from John Thornton, former Fringe head mechanic and current employee in the Robotics Department who is developing a long-needed center for composites. There is a forum today on campus at 4:30. See the full details.

Composite technology has long been an underground phenomenon at Carnegie Mellon. It is now time to bring this movement into the open for the first time.

Please join the newly formed Composites Development Center, part of Carnegie Mellon’s Field Robotics Center, as it hosts Carnegie Mellon’s first Composites Forum this Monday, November 4, from 4:30 to 6:15 p.m. in Newell-Simon Hall room 1305. The discussion will feature NASA Senior Advisor for Composites and Structures Mark Shuart, as well as an overview of the Composites Development Center, Sweepstakes (Buggy), the Society of Automotive Engineers, and the Solar Boat project team. The Composites

Forum will be an opportunity to engage in a discussion about the evolution of composites development at Carnegie Mellon, current research and projects, and the future of composites technology and education at CMU.

Please forward this information along to anyone you think might be interested in composites development, current NASA projects, Buggy, SAE, or the Solar Boat project. We hope to see you there.

***Event Recap***

What: Composites Forum at Carnegie Mellon
When: Monday, November 9, from 4:30 – 6:15 pm [Pizza will be served]
Where: Newell-Simon Hall Rm. 1305 on Carnegie Mellon’s Pittsburgh campus

Thank you,
John Thornton and the Composites Development Center team
Field Robotics Center
Carnegie Mellon University

Driver tank tops available from Sweepstakes

Sweepstakes is making and selling a run of driver-specific tank tops, and they were nice enough to ask if any alumni or other cmubuggy.org readers would like one while the order is going in.

Click on the thumbnail to take a look at the full design.

  • On pre-order now for $11
  • expected to arrive in 2 weeks
  • specify size: women’s S or women’s M
  • can be picked up at rolls or mailed to you
  • email sweepstakes chair, Jess Thurston to order –> jessicathurston532@gmail.com

Rolls efficiency statistics 2009

As we start a new year of rolls with a new sweepstakes committee, I realized that we computed some stats on the number of rolls in the fall of last year, but forgot to follow up on that in the spring.  The idea with these stats is just to give sweepstakes and the orgs some feedback on how well their partnership is doing at getting buggies around the course.

So here is the summary for the 2009 buggy season: Continue reading

Orgs come, orgs go

Most years in buggy see the birth, rebirth, or death of an organization but the transition from 2009 to 2010 is looking busier than usual.  We hate to see anyone go, but it looks like the net migration might come out even or positive this year, so hopefully we can stay right around 50 teams on raceday.  The more the merrier.  Here’s the breakdown …

Continue reading

More paving – this time Hill 1

CMU’s Parking & Transportation Services just sent out a campus-wide e-mail announcing that Tech Street (hill 1) will be repaved starting next week.  Looks like the letter writing and phone calling by sweepstakes and others was effective.  Thanks guys.  Let’s hope they go all the way up past Frew Street and fix the gnarly seam that runs across all three lanes.

So we’ll be back up to heats of 3 next year, and it can only make those hill 1-2’s faster.  As if these kids need any more help throwing down fast times.  They’re just making us alumni of the last 20 years look bad now.

Thanks Pittsburgh!