1,047 karma · joined November 21, 2014
http://kje.ca (email: ken@) http://linkedin.com/in/kennethjamesedwards
[ my public key: https://keybase.io/kejaed; my proof: https://keybase.io/kejaed/sigs/hitw0c0Sng-l_SdqQlTydZor7J1Ff1rQcRwZ3jtx3K0 ]
One slight nitpick is that DO-178B or DO-178C are revisions of the standard and the associated criticality is associated with the Design Assurance Level (DAL) from A to E. One would say software is developed to DO-178C DAL B for example.
The DAL is determined before the software is started at the Systems level according to a process described in ARP4754A (Guidelines For Development Of Civil Aircraft and Systems) looking at the system architecture, hazards, and potential mitigations of those hazards, one of which is developing software to a certain DAL.
Develop a portfolio of 2 or 3 sites that showcase the type of work you would like to do.
The internal tool usecase is a great one, and having the embedded experience to create a web front end or dashboard will definitely help. If you have some embedded projects at home with an Arduino or Raspberry Pi, write a front end for that that uses key web technologies. Then write some blog posts about it, point to your github with the source and then you have something to put at the top of your Resume/Cover Letter/Email to the hiring manager.
https://www.rbcroyalbank.com/business/accounts/small-busines...
Anyways, in the last couple years the FAA has changed the regulations to allow EFVS for credit on Part 121 (passenger aircraft), you can read the rulemaking change proposal that was implemented [0].
The generation of camera that existed at the time of this rulemaking was generally a cryogenically cooled InSb sensor type. The main (certified for credit) cameras here were the CMA-2600/2700 from CMC Electronics (I worked on these) and the Kollsman EVS I and II. These were mostly on BizJets before the rules were changed , except for the FedEx fleet that had an exemption.
As the rules were changed, airport lighting started to change form incandescent to LED, which made those expensive and heavy InSb cameras useless at seeing the approach lights in bad weather.
Over the years microbilometer LWIR tech has improved, and while they won’t help you see any lighting at all, LWIR sensors will help you see the ground and have better weather penetration than other wavelengths.
All that leads to the next gen of cameras being fused multi sensor cameras, 2,3, or even 4 sensors. Rockwell Collins EVS-300 and Elbit’s Clearvision EVS are examples.
The non-certified for credit systems have mostly used microbolometers over the years although some have used SWIR sensors as well.
As others have said the ITAR comes into play with anything approaching usable frame rates and resolution, although these are being slightly relaxed. Also, don’t buy American and you don’t have this problem.
After camera-based systems they are database driven Synthetic Vision Systems (SVS) that would have helped greatly in this particular near disaster. Then you can get even fancier and fuse synthetic with infrared to get a Combined Vision System (EVS + SVS = CVS), while Elbit and Rockwell offer. Sometimes I miss working on these vision systems.
[0] https://www.federalregister.gov/documents/2013/06/11/2013-13...
Yes, the certifications on the aviation side are DO-178C for Software and DO-254 for Airborne Electronic Hardware. Rather than SIL or ASIL (Automotive Safety Integrity Level), the aviation equivalent is DAL (Development Assurance Level). Of course, while they each use letters for levels of Integrity / Assurance, in aviation DAL A is the most stringent and in automotive ASIL-D is the most stringent.
https://www.rapitasystems.com/blog/what%E2%80%99s-difference...
Used Remi for a web control gui and platform.io on the rpi to be able to program the arduino headless.
https://www.youtube.com/watch?v=ww1q248jc7Q
https://github.com/kejaed/deckLights/blob/master/projectNote...
is a pretty interesting quote, that they are "reader supported". Given that they've now raised $30M, I wonder what their reader revenue looks like vs. VC money. I hope they have some success because the journalism market needs some success stories.
However, the license specifically states that you cannot use it for sports. I wonder if they singed a high value exclusivity agreement with someone in that space, or if some such company funded the research originally...
"The non-exclusive commercial license cannot be used in the field of Sports. ("Sports" shall mean any and all athletic competition between individuals, groups of individuals or teams.)"
seems to have more up to date status
This is the case here in Ottawa:
http://www.ottawapublichealth.ca/en/public-health-topics/lym...
Unfortunately we know all about this because our dog got bit, got Lyme disease (even though she was on the preventative medications), then developed a rare complication (heart condition). It's really made going out on the trails a less fun experience when worrying about ticks.
https://www.backblaze.com/blog/transparency-in-cloud-storage...
I use free accounts on Dropbox and Google Drive and paid top tier iCloud storage (2TB) for personal items mostly because of ease of use of iCloud for photos on every device. Photos also backed up (compressed) for free to Google Photos so there isn't a single point of failure for all my family's photos.
iOS / watchOS developer
Groove Technologies is a bootstrapped startup looking for a contract developer to help flush out our MVP for Groove.AI, our product targeting the fitness space.
Please get in touch by sending an email to groove@groove.ai