7 votes
Accepted

Should I use NFC, RFID or something else?

How far away from your base computer do the terminals need to be? Does it need to be a relatively real-time system or can the check-ins be cached for a few seconds? If you could get away with the ...
Aaron's user avatar
  • 186
6 votes

Tracking livestock location without GPS or mobile network

I think the least expensive technology that exists in this arena is active RFID. But the definition of expensive is best left to the user. A company called Monnit has active rfid tags and sensors ...
Mack Allison's user avatar
6 votes
Accepted

IoT for industrial warehouse management

Option 1 One solution I have seen and I could recommend is to divide your warehouse in areas and create gateways for accessing to them with the forklift or trucks. Then you setup the antennas on ...
Snake Sanders's user avatar
5 votes
Accepted

Zigbee network intermittent issues

It is important to identify whether the problem is : Devices or network deployment Devices or network configuration. Devices Hardware (or firmware versions) Environment Security configuration The ...
Snake Sanders's user avatar
5 votes

Options for cheap and "open" wireless thermometer/humidity sensors

I myself was just working on a similar project, so I may be of some help. The first thing that we need to consider is the budget. Since you mentioned cheap, I am going to try and keep the budget below ...
Rohan Harish's user avatar
5 votes

Options for cheap and "open" wireless thermometer/humidity sensors

My solution to this was to use ESP8266 boards with various temp sensors like a TMP102 or LM75A. The ESP chips then send their data using MQTT to a Pi which is running Home Assistant. Here are some ...
Garrett Banuk's user avatar
5 votes
Accepted

Wireless communication technologies for indoor location-tracking

I have used EPC GEN2 [EPC865-868 MHz(Europe), 902-928 MHz(USA)] technology for an automated document management system. You can find long distance antennas on the market. For example - GAO RFID can be ...
Amit Vujic's user avatar
4 votes

What would be the best way of authenticating users without password or username?

If you are planning to use cheap android tablets, you should do some survey to understand what technologies are possible options for authentication. Besides wifi and bluetooth connectivity, most of ...
gabonator's user avatar
  • 226
3 votes

What would be the best way of authenticating users without password or username?

You can consider attaching pcProx® Plus RFID readers with the machines, 1 per machine. You can use RDR-80581AK8 SKU. It is powered by 5V external power supply and supports RS232 for sending data in ...
sob's user avatar
  • 2,610
3 votes

What would be the best way of authenticating users without password or username?

Possibly cheaper than a tablet would be a Raspberry Pi and a USB NFC reader or a NFC Hat. It's not clear what you mean by machine, but if you mean just another computer then both Linux and Windows ...
hardillb's user avatar
  • 12.6k
3 votes

Wireless communication technologies for indoor location-tracking

IF you would like to located indooer, rfid and bluetooth would be best choice. It has UHF and HF for rfid requency, respectively 860-960MHz and 13.56Mhz. And UHF divided into 902-928 MHz(USA) 865-868 ...
Lin David's user avatar
3 votes

Options for cheap and "open" wireless thermometer/humidity sensors

As always with a wireless solution, the critical parameters for selecting a solution are required range and power consumption. You might be able to identify a cheaper pair of sensors, or even find a ...
Sean Houlihane's user avatar
3 votes

Tracking livestock location without GPS or mobile network

If you're worried about the cost of scaling the system to large numbers of livestock, then keep the equipment off the livestock. Send a drone with a camera overhead periodically. Livestock need to ...
Foozinator's user avatar
2 votes

Tracking livestock location without GPS or mobile network

Using RFIDs will be very costly for such large coverage area. It will require a bulkier system. It will be better if you use LoRaWAN. This technology being cheap, low powered, long transmission range ...
ron123456's user avatar
  • 413
2 votes

Pushing Processed data from RFID + Sensors to a Platform

Congratulations on writing a research paper on it. This can be done with streaming platforms such as kafka or AWS KDA (kinesis data analytics). There are clauses in the query language in KDA (and also ...
kalyanswaroop's user avatar
2 votes
Accepted

Pushing Processed data from RFID + Sensors to a Platform

If someone needs an answer / solution for this query, I created a landing page of repositories that provides a complete End-To-End solution of a prototype of the application. Right from Arduino Sketch ...
Shan-Desai's user avatar
  • 1,538
2 votes

Indoor Asset Tracking

I think this is going to be a difficult problem to solve with the given constraints. There are two main forms of "tags": active and passive. Active "tags" may be RFID/NFC (on ...
jcaron's user avatar
  • 2,283
2 votes

Standalone NFC/RFID with WiFi/ethernet network connection

Not quite sure they meet all of your requirements, but they may be starting points: QBIC TD-0350 Embrava Desk Sign Condeco Desk Booking Screen Some may only be available as part of a complete ...
jcaron's user avatar
  • 2,283
1 vote
Accepted

Is it possible to connect a PN532 with CP210 to Windows x86/64?

If you want to use it “as a keyboard”, i.e. whenever a card is presented some data from the card is sent to the PC as if it were typed on a keyboard, they I don’t believe you can do that with this ...
jcaron's user avatar
  • 2,283
1 vote

RFID Specifications and Project Recommendations

RFID (and not NFC) is the technology for you. For 2 ft (60 cm) range, you will need the more expensive "active" RFID tags & reader, rather than "passive". For a board, go with what makes you ...
Mawg says reinstate Monica's user avatar
1 vote
Accepted

Is it safe to have a RFID card in the back of a Cellphone case

RFID card does not emit any electromagnetic signals when it is not close to a reader, it is designed to be passive. It is activated when brought in proximity to the reader. So RFID card cannot really ...
sob's user avatar
  • 2,610

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