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Need a cheap RFID setup

Posted on 2016-11-05
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Last Modified: 2016-11-13
I am very new to any form of hardware, so please explain things really slowly.

I need an RFID (or other wireless chip) that I can attach to various things, like a workbench, to gather vibration via a receiver.

It must have a:
1) unique ID
2) ability to transmit vibration

and I hope t can also transmit temperature and even oscillation and motion.

It meeds to be very cheap, and must be "off the shelf".

Does such  thing exist?

And what hardware do I need to receive the wireless signal? I will write a Windows program to interface with this receiver so it can gather up all signals.

Thanks
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Question by:newbieweb
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by:Paul Sauvé
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generally, this type of system is used for tracking items that are moving in or out of a specified area (asset tracking, if you prefer)

RFID chips work over a very relatively short distance and require a dedicated reader which can interface with a PC - but they are not inexpensive

have a look at this to see if this is what you may require:
2.45 GHz Active Vibration Sensor RFID Tag
Product Overview
GAO’s active RFID vibration sensing tag detects and transmits the presence of continuous or impulsive vibration so that the monitoring system can tell when the item is being moved or is in motion and is typically used to secure various assets to provide an alarm system. The tag provides up to 100 m read range and a unique anti collision feature allows for a simultaneous read of up to 100 tags. It has a typical battery life of 4 years.
http://gaorfid.com/product/tag-transponder-active-vibration-sensor-2-45-ghz-rfid/
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by:newbieweb
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I need short range, but very very low cost.

What kind of price are we talking about for 100 chips?

Does the use of a passive RFID reduce the cost considerably? I would expect so, since there is no battery needed and no radio noise emanating from each chip.

BUT, can it replay with vibration? I expect the vibrations will usually be short lived, so if the chip has  no memory and no battery, it will be almost useless.

So, the question is...

Does a passive RFID chip have memory? Can it be polled and asked about the vibration in the last short while? Like the last 10 seconds?
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by:Paul Sauvé
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i'll get back to you tomorrow - i'm at happy hour and ....
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as far as i know, RFID chips contain NO memory.

You can read more about active and passive RFIDs this here: http://blog.atlasrfidstore.com/active-rfid-vs-passive-rfid
Active RFID vs. Passive RFID: What’s the Difference?
Short Answer:
Passive RFID systems use tags with no internal power source and instead are powered by the electromagnetic energy transmitted from an RFID reader. Passive RFID tags are used for applications such as access control, file tracking, race timing, supply chain management, smart labels, and more. The lower price point per tag makes employing passive RFID systems economical for many industries.

Active RFID systems use battery-powered RFID tags that continuously broadcast their own signal. Active RFID tags are commonly used as “beacons” to accurately track the real-time location of assets or in high-speed environments such as tolling. Active tags provide a much longer read range than passive tags, but they are also much more expensive.
if using passive RFID tags, then you must constantly monitor with the reader, which doesn't sound practical.

the active RFID will send a signal as soon as the vibration occurs.
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by:newbieweb
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The active will be outside my price range, I am sure.

What's best price (for a large volume purchase) can you imagine for an active RFID for vibration tracking?

I need it to be a low profile as possible, as thin as possible. Hopefully the battery it a tiny battery.
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go to this link to request a quote for the number of tags you need: http://gaorfid.com/product/tag-transponder-active-vibration-sensor-2-45-ghz-rfid/

that will give you and idea - this site is in Canada, but thy may be available in the US ask for quote in US $
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by:newbieweb
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Thanks. I requested the quote.

What type of transmitter / receiver do I need together the vibrations and convert into some format I can store in a database?


Thanks
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thanks
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