RFID Machine Use Queue
Contents
Introduction
The RFID Machine Use Queue Project is intended to primarily provide a method for members to use the RFID cards and key fobs to put their names in queue for the next time that machine is available.
The system will be open source and will use off the shelf components as much as possible. The system will allow for easy paging, texting or emailing the next person in line for the machine. Logging and data mining will also be part of the design criteria, in hopes of getting a better idea of when new machines are needed to keep up with demand.
Requirements
Software
- Reads RFID data from a HID USB 125KHz EM4100 compatible RFID reader
- Software for accessing Active Directory for RFID lookup
- Search Active Directory to ensure RFID matches a current member
- Search Active Directory to ensure RFID matches a member that has training for that machine
- Logging and data collection
- Allow user to modify phone and email fields
- Install On Screen Keyboard
- Allow user to choose which queue(s) to add to
- Allow user to delete THEIR queue entry
- Allow Admin to delete any queue entry
- Allow any member to swipe RFID and signal next in queue
- Periodically create 720p sized graphic file of the queue and drop it where it will show up in the Chromecast for the machine
Hardware
- EM4100 compatible 125KHz USB HID RFID reader
- Raspberry Pi 3
- Touchscreen Display
- Network connectivity to the DMS network
- Hardware for powering the device via Power over Ethernet (802.3af)
- Case to protect device from dust and tampering
Proposed additions
Software
Hardware
Completed Steps
Software
- Software for accessing Active Directory for RFID lookup
Python
import requests url = "http://192.168.200.32:8080/api/v1/lookupByRfid" payload = "rfid=10284295" headers = { 'content-type': "application/x-www-form-urlencoded", } response = requests.request("POST", url, data=payload, headers=headers) print(response.text)
cURL
curl -X POST -d 'rfid=10284295' "http://192.168.200.32:8080/api/v1/lookupByRfid"
- Install on-screen keyboard
sudo apt-get install matchbox-keyboard
- Startup 7" touchscreen in 800x480 mode
sudo nano /boot/config.txt
... hdmi_force_hotplug=1 hdmi_group=2 hdmi_mode=1 hdmi_mode=87 hdmi_cvt=800 480 60 6 0 0 0
- Startup Chromium in incognito and kiosk mode
sudo nano /home/pi/.config/lxsession/LXDE-pi/autostart
@lxpanel --profile LXDE-pi @pcmanfm --desktop --profile LXDE-pi # @xscreensaver -no-splash #commented to disable screensaver @point-rpi @xset s off @xset -dpms @xset s noblank @chromium-browser --incognito --kiosk http://192.168.200.130/queue-manager/index.html # load chromium after boot and point to the Queue-Manager index.html file in full screen mode
Hardware
- Decided on Raspberry Pi 3 for processor overkill and WiFi ($35)
- Decided on PoE to 5v Micro USB adapter (UCTRONICS IEEE 802.3af Active PoE to Micro USB 5V 2.4A for Raspberry Pi) ($10)
- Decided on RPi 7" Touchscreen ($70)
- Decided on SmartiPi Case for 7" RPi Touchscreen ($30)
- Decided on USB RFID reader ($16)
Status
Photos
