Hi Arie,

I am pleased to hear that you are playing with Java and the TINI 
interfaces. I have a box of them here. I also know the engineers
and executives at dallas semiconductor who makes these. I also 
work for Sun (JavaSoft), so I have access to every kind of tech
support possible for both TINI and Java. I am using Java and Jini
to control my house and reef aquarium. Check out these screen 
shots of my home control application, which works from anywhere
in the world. I have run it from as far away as texas, and soon
it will be run from dubai, milan, and paris in the next several
weeks:

  http://www.los-gatos.net/jinihouse.html

I would be happy to work with you and others on this idea of 
using Java and TINI for an interface to strong motion sensors.
Although it is not there yet, dallas plans to add RMI (remote
method invocation) and Jini support on TINI. This would be a 
very powerful set of tools to sensors to "gracefully" join or
leave a large network of devices, and protocols exist for 
detecting failure (duration based leases) and triggering 
events (distributed event protocol). Effectively, this means
that an earthquake could become a Jini distributed event, and 
results could easily propagate to any interested parties. One
could also envision remote calibration and other nice things
as a result of using Jini's protocols. I would love to hear 
from USGS on this, and I wonder if they have contemplated 
Jini for connecting sensors. BTW I am working with other 
companies to help Jini enable other related devices such as
1-wire temp sensors and such. This stuff is very powerful 
and very affordable. I think it just might be a good way 
for schools etc to get sensors online, AND potentially 
offers a way for USGS to easily query all devices that are
out there.

  -- Doug




On Sun, 17 Oct 1999, you wrote:
> Hi, In mid august, Doug ( Doug  ) mentioned a
> project that was working on using a simm-sized micro controller that
> implements TCP/IP  for a strong motion devices. Since then I have
> purchased two of these controller boards and the company that
> provides them are about to release an upgrade to the software the makes
> it easier to access I/O through the units programming language, Java.
> They have already released the documentation.  Given easy access to the
> high speed hardware it would be simple to add some A/D chip. At the
> moment the device's supported I/O is a "one wire interface" and serial
> port.  I'm looking forward to the upgrade and access to the "real" I/O.
> 
> My vote is for Doug's concept for the strong motion device for the schools.
> Though the controller boards should have the better I/O software.
> Better I/O means a huge range of possibilities.
> 
> The device could then be plugged into a local school network. All you need
> to do is give it a "IP" address. This coupled with a good 12 bit multi-channel
> A/D chip and support software would make an impressive interface.
> A/D chip -> LTC1290 ?
> 
> The boards are cheap and powerful: see   http://www.ibutton.com/TINI/
> 
> I'm not sure about the strong motion sensor, it all depends on what level
> of quake the schools want to record.
> 
> Maybe the "MOUSE" on your computer is a strong motion device. It even tells
> you direction and intensity of the ground movement. Don't laugh.
> 
> Arie
> 
> 
> 
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