Subject: Re: Vehicle Detection using RFID other technologies.
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Date: Sun, 3 Nov 2002 00:11:51 -0000
NNTP-Posting-Date: Sun, 03 Nov 2002 02:20:28 GMT
Organization: ntl Cablemodem News Service
Ask the singapore government
"Jim Thompson" wrote in message
> On Sat, 02 Nov 2002 10:12:50 -0800,
> Richard Crowley ,
> In Newsgroup: sci.electronics.design,
> Article: ,
> Entitled: "Re: Vehicle Detection using RFID other technologies.",
> Wrote the following:
> |Sanjeev Gupta wrote:
> |>We are looking for a transmitter/receiver that can detect a vehicle,
> |>equipped with a transmitter, travelling at a speed of upto 100 km. per
> |>hour on a highway. The receiver should be able to read a serial number
> |>from the tag attached to the vehicle and send it to a receiver
> |>attached to a computer via serial/USB port.
> |> There should not be any restriction for direct line-of-sight
> |> between the vehicle and the receiver/sensor.
> |> The sensor shall be placed at a distance of 100
> |> meters from the vehicle.
> |> We will not be able to use the road loop antenna or
> |> overhead gantries.
> |Seems unlikely you will see something like this outside a Hollywood
> |movie. Asking in a newsgroup would apear to establish up front that
> |you don't have the budget to accomplish this. Even without your
> |requirement for "low-cost".
> |It is done today, but only with close-proximity (<2m) receiving
> |antennas, usually road loops (used for automated toll-accounting) or
> |overhead directional antennas (used for automated truck weighing).
> If this requirement is for more than a "one-off" situation... i.e. a
> legitimate commercial application, contact:
> SAVI Technology
> 615 Tasman Drive
> Sunnyvale, CA 94089
> ...Jim Thompson
> | James E.Thompson, P.E. | mens |
> | Analog Innovations, Inc. | et |
> | Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
> | Phoenix, Arizona Voice:(480)460-2350 | |
> | Jim-T@analog_innovations.com Fax:(480)460-2142 | Brass Rat |
> | http://www.analog-innovations.com | 1962 |
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