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Subject: Re: Vehicle Detection using RFID other technologies.
Date: Thu, 7 Nov 2002 13:04:32 +0900
NNTP-Posting-Date: 7 Nov 2002 03:53:49 GMT
X-Newsreader: Microsoft Outlook Express 4.72.3110.5
>"Sanjeev Gupta" wrote in message
>> We are looking for a transmitter/receiver that can detect a vehicle....
davidjudy wrote in message
>You don't need a news group, you need a systems house and $500,000++
I disagree. My view is that a solution could be prototyped for relatively
A professional supplier of ready-made telemetric systems will give you a
higher standard of physical execution ("casing"), more reliable after-sales
service or maintenance and at least in theory more reliable electronics.
However, this depends upon a number of factors. For example, if the
transmitter modules were not designed specifically for vehicle use then they
may not be suitable for the higher levels of vibration and the
manufacturer/franchisee salesman may not have realized the implications of
how the modules should or should not be used in your case.
A telemetric equipment supplier will also have a published price list
(although they will probably want to give you a separate estimate for the
black art of software customization) but this should still give you a
reasonable deal for your money and additionally someone to sue if anything
goes wrong (which may be important in some situations).
The downside is that most of the project fee will probably go to fixed costs
(including office rent and salaries during the months of idle time) and
there may be relatively little brainwork involved by anyone on the project
team since most of the solution will be the result of re-arranging
off-the-shelf units and initializing the software.
I would advise you to stay away from the 'system house' solution or anyone
else who needs to 'develop' something before they know what they should be
doing on this project. What you are asking for is relatively simple and a
good supplier of telemetry modular systems should have a number of modules
that can somehow be re-arranged or adapted to meet most of your needs. Once
the hardware and software interfaces are in place you probably know someone
who can patch together the application software to your requirements.
Personally, if time allows, I would support the idea of searching for an
individual with radio data transmission experience and then prototyping
something on a shoestring budget. If you create a Bayesian payoff analysis
of the decision you will probably find that this option has the highest EMV
even though your estimated chances of full satisfaction are realistically
More importantly, the real value of this type of system is highly dependent
upon the level of creativity and effort in searching for something that
genuinely meets the needs of your specific situation. It is often
overlooked that talaented individuals and very small companies actually have
a good chance of outperforming larger counterparts in this area simply due
to a lower degree of systematization in their approach and higher incentive
to work harder to find the optimal solution.
Finally, when negotiating prices for this type of project you will probably
face the insidious 'value pricing' approach (where they convince themselves
that the fee should be proportionate to the amount of overall incremental
value they estimate you would derive from the project in the best case
scenario). Of course, this attitude is not limited to companies..... but
companies generally have more opportunity than individuals to adopt this
kind of approach due to perceived brand image strengths and the practical
problem of how to pay rent/salaries during idle months.
In this context, you might want to consider initially prototyping the
solution on a shoestring budget with an individual or very small company and
then reviewing the decision as to who should carry out full-scale
implementation. Demonstrating that you have already succeeded in
prototyping the low-cost solution in advance as a 'fall-back' option is a
good way to knock some sense into the salespersons of larger suppliers at
the time of price negotiations.
I think this would be a reasonable cost-control measure in your case.
Telemetry and telecontrol are classic examples of niche markets where
talented individuals are still capable of creating customized solutions from
low-cost parts that can potentially rival or surpass those of specialist
suppliers of off-the-shelf modular systems. (They just need to identify the
one function that cannot be easily incorporated into the off-the-shelf
system but that would maximize the attainment of your own project goals.)
If possible I would test the low-cost option first to develop some sense of
'dollar-value' before assuming that I need to blow $500,000 or more on the
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