And Philips.
To: Multiple recipients of list offtopic <[EMAIL PROTECTED]>
Send reply to: [EMAIL PROTECTED]
From: "Tony Blomfield" <[EMAIL PROTECTED]>
Subject: Re: [DUG-OFFTOPIC]: RE: [DUG]: Input devices (moved to
off-topic)
Date sent: Thu, 3 Feb 2000 12:49:48 +1300
> Also there is Dallas Semiconductors who produce a wide range of Active and
> Passive transponders. They are in Bush Rd Albany.
>
> -----Original Message-----
> From: Wes Edwards <[EMAIL PROTECTED]>
> To: Multiple recipients of list offtopic <[EMAIL PROTECTED]>
> Date: Thursday, 3 February 2000 11:46 AM
> Subject: [DUG-OFFTOPIC]: RE: [DUG]: Input devices (moved to off-topic)
>
>
>
> > No. The information being captured needs to be keyed.
> > Apparently the items that *I* want to put a barcode on are shipped all
> > around the country, and get seriously abused along the way.
> > Are there industrial barcodes that can be welded onto things?
>
> YES.
>
> A lot of American railroads used barcodes to track their fleet of freight
> cars around the country and used trackside barcode scanners for the purpose.
> The system was put in in the 60's and 70's but didn't last terribly long
> because of the abuse the bar codes got.
>
> What they, and many other industries, now use are transponders (also known
> as tags or RFID for Radio Frequency ID). These are usually passive devices.
> When placed in a field of radio waves they use the captured radio energy to
> transmit an ID code back to a receiver nearby. Active devices need a power
> supply but have better range etc. These RFID tags are built in a huge range
> of sizes for use in personnel access control (a "swipeless swipe card"),
> electronic toll collection in cars, to identifying all sorts of things. A
> Logging company down Rotorua way uses them to track logging trucks around
> the place so their logs don't go missing (it happens!). Some railroads use
> them to track railway wagons (industrial strength enough for you?).
>
> Buses in Auckland use them to identify themselves to the traffic signal
> control system so they can get priority at particular sets of signals. In
> the last case they are capable of transmitting up to 64k of information over
> up to 1m at speeds of up to 120km/hr.
>
> Depending on your application this technology may be just what you are
> looking for.
>
> Check out http://www.ti.com/mc/docs/tiris/docs/index.htm for Texas
> Instrument's product. There are a lot more out there too.
>
> Wes Edwards
>
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Rohit
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