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Sensor Observations

I observed sensors in Othmer Hall while completing a small task.

Identified Sensors:

  • push button to open automated doors

    • when the doors open, I know it worked, it was a one time interaction

  • tap ID to gain access to dorms (open gates)

    • when the light turns green and the gate opens, I know that it interaction worked

  • place hand under dispenser for sanitizer

    • this one did not work, and I know because no sanitizer came out

    • however I did try a few times to get it because there was no indication either way

  • push button to call for elevator

    • there is a light that comes on when you push the call button, and a sound emits from the elevator (whichever one out of the three) is coming, each “beep” is for a floor progression

    • when the elevator arrives, it “dings” and the doors open

  • put leg in danger to open elevator doors

    • this sensor is maybe the only one that did not identify itself, but it’s fairly universally known because it is a built in safety feature as a last resort, so it doesn’t want to draw attention to the fact that you can do this

    • I feel it’s more likely that the lack of a sensor would need to be called out

  • push button to turn on AC

    • select temperature to automate to desired room temperature

    • this device you pushed a button to turn on, and then another button to set a temperature, from there, the air would turn “on” if the temperature of the room was higher than the setting, and turn “off” if the temperature was lower or equal to the setting

  • walk (move) into laundry room to activate lights

    • this one I knew existed because it turned on, and when it turned off, I had to move around a little bit to get the light to turn back on

    • I had to look around for a sensor, I think I found it but I’m not sure because I couldn’t observe any pattern with movement and lights being on/off

  • camera hover over QR code to to identify washing machine

    • this interaction was interesting because it had multiple parts:

      • first you load your laundry and close the door

      • then you select your setting

      • then you hover your phone camera over the QR code attached to the machine so that the app you previously downloaded recognizes which machine it is going to activate

      • the app asks you if you are okay with the cost and if you select “yes” on your phone and approve the purchase

      • you then push the start button on the washing machine to start the machine

    • there is dual recognition of the interaction being successful, through the app itself which tells you that the payment went through and the machine is starting, and also the machine itself begins its cycle

  • tap phone to ePort for Apple Pay to buy something from a vending machine

    • this was my least favorite interaction because of how unclear it was

    • I tapped my phone to the ePort to use Apple Pay and the ePort beeped, but the screen on the machine said “tap to begin”

    • I figured this might mean that I needed to tap the screen to begin, not tap my card, so I tapped the screen

    • the screen showed a 5$ credit on the machine although I had never specified an amount, and showed numbers for my to enter my selection

    • after entering my selection on the screen, the vending machine deposited my snack (Twix) and charged me the 1.25$ amount, showing a credit of 3.75$ and the keypad again for another selection

    • I hit “cancel transaction” and it returned to the “tap to start” screen

    • In order to confirm a 1.25$ charge and not a 5$ charge, I used my mobile banking app to see that I was charge 5$ but am being refunded 1.25$

      • one day, if I’m feeling strong, I’ll dig into all the sensors involved in my single phone interaction

  • alarms

    • CO2 sensor

    • fire sprinkler sensor

    • hopefully these two are sensing…but there’s really not much of a way to tell from my point of view, I assume that there’s a blinking light for on, and that since it is a safety alarm that it would emit a sound if it malfunctioned or ran out of battery