From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wg0-f41.google.com (mail-wg0-f41.google.com [74.125.82.41]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority" (verified OK)) by huchra.bufferbloat.net (Postfix) with ESMTPS id 322942004D7 for ; Mon, 4 Jun 2012 06:09:43 -0700 (PDT) Received: by wgbds1 with SMTP id ds1so2435184wgb.4 for ; Mon, 04 Jun 2012 06:09:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type :content-transfer-encoding; bh=G12vcDjRHtYlYQsvySJRVW7hK8tJAe54S+5nS7qi0ao=; b=eBFxbC8XVDhvpxcv9wS54K/PqrlWAFsk4MdaIjiY5ZJprx4IBiqu2umQp74ckVE0UU 8muEGouedCWiGMJ5/FwNZKSPCR1pVqw/TbistpmWLWCYKAUK2jz1rDiBfb/Kb59PawDr /uyNrqIYgOHJKthJIFXx+HjG8JlMmyXEBubhzZkacsHdpfP+E0+eRvBe17BdzuPW2bVs SrHhblPUi4Djb6yDnUksB06omxcG/w3ieSSD2OYeQVfT+YfPwg0K+eD9AtUpuaqeFwAf twO8fzvtt3LcQ5MP5Ah/CLj0osTNloDwQg70gdTuKWAmlzzPx+QZSSZ+D+jtv0DUVc8s Wbgg== MIME-Version: 1.0 Received: by 10.216.202.22 with SMTP id c22mr10267068weo.10.1338815380995; Mon, 04 Jun 2012 06:09:40 -0700 (PDT) Received: by 10.223.103.199 with HTTP; Mon, 4 Jun 2012 06:09:40 -0700 (PDT) Date: Mon, 4 Jun 2012 09:09:40 -0400 Message-ID: From: Dave Taht To: thumbgps-devel@lists.bufferbloat.net Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Subject: [Thumbgps-devel] quake sensing X-BeenThere: thumbgps-devel@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 04 Jun 2012 13:09:44 -0000 I have obtained one of the onavi-B sensors to play with The quake sensor stanford is distributing is the onavi-A and onavi-B, shown here: http://qcn.stanford.edu/sensor-performance?lang=3Den It uses a KXRB5 MEMS accelerometer from Kionix. My intent, originally, was to see if I could find a way to combine it with a ublox GPS over the internal i2c bus. It looks like that will require using a different ublox-6 chip than in the macx-1 with rewritable firmware and a firmware license, and... well... maybe going some other route like leveraging an arduino would be saner(?) At the moment however, I'm trying to figure out if there are any better MEMS sensors out there, or better ways to hook them up than this device which appears to have it's own protocol, running over serial... http://qcn.stanford.edu/join-qcn/request-a-sensor/sensor49-php The qcn.stanford.edu idea is pretty neat. it's designed for boinc after the fact analysis (and there is linux support) The USGS has got a fairly decent looking prototype of an early warning syst= em, but their outside estimates for warning time is 20 seconds, presently, afte= r what they've designed is fully deployed. (and they are 100m short on fundin= g) http://blogs.laweekly.com/informer/2012/04/earthquake_warning_los_angeles_u= sgs.php --=20 Dave T=E4ht SKYPE: davetaht http://ronsravings.blogspot.com/