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Final Project - Workspace

Final Project - Workspace

by c_sung meghna tomotomo | updated January 31, 2015

An interactive waste bin for office spaces which encourages people to recycle more!

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January 13, 2015 at 12:00 PM
Created by c_sung
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Demographics: graduate students of both genders

Activities: doing processing work computers at desks

Behaviors: sitting individually at own desk, not much interaction with each other while working on computer. Person A to Person B's desk and has a conversation with Person B (and us) while we all stand around Person B's desk.

Unexpected interactions: One person got up to get water to water the plants. (There is no sink in the lab even though there is a kitchen.)

Other info:

  • Organizing space
    • Desk
    • Papers on wall
    • Temperature
    • Power cable
  • Organizing stuffs
    • Keeping track of common tools
  • Drink and Food
    • Coffee
    • Small kitchen and sink.

January 13, 2015 at 12:15 PM
Created by c_sung
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Demographics: students, mostly undergraduates

Activities: individual work/studying at computer stations; collaboration on assignments/projects; chatting with friends; getting up from computer stations or desks to get things from the printer

Behaviors: most people are sitting at their own desks working quietly by themselves, while some are constantly interacting with one another

Unexpected Interactions: people use the computer stations as desks to work even if they don't need to use a computer

January 13, 2015 at 7:58 PM
Created by c_sung
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1. How do we encourage organization at each work space?

2. How do we transition from individual to group work?

3. How do we transition from one activity to another?

4. How do we allow for safe eating/drinking in a work space?

January 15, 2015 at 8:41 AM
Created by c_sung and meghna
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January 15, 2015 at 4:32 PM
Created by c_sung
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1. Rotating table

To enable users to switch their activities quickly. Several plates with different usages are attached to the pole. By simply rotating the plates, users can switch different activities with a minimum movement.

2. Sweeping table

To encourage organization. The sweeper clears the table of everything on it. Everything swept off the table is collected in the collection bin. The user can set the sweeper to be activated as often as he/she would like. On the left side of the sweeper is a safe zone that will not be swept by the sweeper. There are pressure sensors in this zone and there is a limit to how much weight is allowed in this zone so that the user doesn't pile everything here. The table also has a transparent surface and a place to store things underneath.

3. Drink/Cup/Box Holder

For better organization and preventing spills on important documents. 
A movable arm is attached to the desk which has a slot to put the cup/box in it so that the drink/liquid is not on the main desk where it could spill. 
Just position the arm if needed and lock with a switch. 

January 16, 2015 at 9:19 AM
Created by tomotomo, meghna, and c_sung
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January 20, 2015 at 9:24 AM
Created by c_sung
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I used this paper for note during class, so it looks messy. Sorry!

January 20, 2015 at 9:25 AM
Created by c_sung and tomotomo
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January 20, 2015 at 3:40 PM
Created by meghna and c_sung
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The interactive trash can can be used in a small room for one person or an office.

The interactive trash can makes people aware of environmental impact of their behavior. Instead of showing numerical data, we decided to visualize the number as a growing tree: the more users recycle, the more the tree grows.

January 20, 2015 at 8:15 PM
Created by c_sung and tomotomo
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Feedback from User #1:

  • Consider power needed for the display
    • Solar?
  • Consider making the leaves shown on the display wilt/disappear as people throw away trash

What we changed based on feedback:

  • We're still thinking about how to power display in a more environmentally-friendly way
  • A leaf will wilt and then fall off each time someone throws something away into the "Trash" slot

January 20, 2015 at 10:14 PM
Created by tomotomo and c_sung
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After making changes based on testing/feedback from our first user, we tested our modified prototype with a second user.

Feedback from User #2:

  • Consider moving display to somewhere more visible to person using the waste bin
  • Reconsider the different slots on lid. Ex: The user crumpled a piece of paper into a wad, which did not fit in the thin slot that we have for "Paper"
    • Size, shape

What we changed based on the feedback:

  • As shown photos in the "Components" step, we actually moved the display nearer to the lid of the waste bin. We are still considering it's placement - where should we put it (lid, container, nearby wall...), and how should we attach it?
  • We are still brainstorming the sizes/shapes of the different slots

January 20, 2015 at 10:15 PM
Created by c_sung
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January 20, 2015 at 10:16 PM
Created by c_sung
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Description of the design problem / opportunity and your proposed system

  • Design problem: We need to consider how we want the interactive waste bin to look. We also need to consider aesthetics.
    • Location of display screen, graphics on the display, size/shape of lid and slots in lid, size/shape of waste bin container

  • Proposed system:
    • Complete structure of interactive waste bin (lid and container). We don't need working electronics like sensors to measure how much is in the can for this prototype.
    • A screen to display a tree and leaves that indicate how eco-friendly users are

What question your prototype is addressing

  • How can the physical structure/appearance of the interactive waste bin encourage and/or make it more convenient for people to recycle?

How you plan to implement your prototype

  • Lid: CAD in SolidWorks. Laser cut our final design for shape/size of the different slots (paper, cups/cans, trash)

  • Container: CAD in SolidWorks. Start with an existing trash can and modify it to make separate compartments on the inside

  • Display: use a tablet/monitor that displays drawings of the tree + leaves

What materials you might need

  • Lid: acrylic? ABS? delrin? something we can use with the laser cutter.

  • Container: trash can

  • Display: tablet

January 20, 2015 at 10:54 PM
Created by tomotomo, meghna, and c_sung
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Description of the design problem / opportunity and your proposed system

  • Focus on the system of detecting trash, paper, cups and bottles and how to give feedback to users on display screen. 

What question your prototype is addressing

  • How can the system encourage people to recycle more or generally waste less?

  • How does the system quantify the amount of material recycled & return this information to users?

How you plan to implement your prototype

  • Detect number of objects that pass through each compartment with motion sensors

  • Then display corresponding image/message on the screen.

What materials you might need

  • Display screen

  • IR sensors

  • Arduino

Other info

  • The interactive waste bin can be used in a small room for one person or an office/entire office building. But the feedback should be different for each case as there are more people in the office.

January 20, 2015 at 10:57 PM
Created by tomotomo, meghna, and c_sung
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Researchers need to conduct experiments and write the data they get to document what they have done. However, since they use most of the space for experiment equipments, they need to squeeze everything to get a space to write.
 

January 21, 2015 at 11:19 AM
Created by tomotomo
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The main box will have two compartments to properly separate the materials. 

Instead of making it just a bin, we made it a box which has 2 small bin (one for trash, one for recycle). The reason we made it a box, instead of a trash can is that because we have sensors and screen on the top part of the trash can, it will be difficult to put garbage box without letting them disturb the sensors. By adding a door on the front side, users will be able to collect and out garbage bag without disturbing the sensors.

January 21, 2015 at 7:33 PM
Created by meghna and tomotomo
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The hole in the left is for things that can be recycled such as bottles and papers. The hole in the right is for trash, which cannot be recycled. The circular shape of the left hole indicates users can throw away bottles and cups. The thin rectangular allows users to throw away papers while blocking trash. I put small space on the top to provide wiring space between the arduino attached to the trash can and screen.

 

January 21, 2015 at 7:46 PM
Created by tomotomo
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Box

We made looks-like prototype with form core board because it is cheap and easy to cut and make a box with.

  • The hole on the back is to hold Arduino.
  • Magnets are attached to the door to keep the door closed.
  • Triangle-shaped pieces of form core board was attached to reinforce the structure.

January 22, 2015 at 7:28 PM
Created by tomotomo
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For this iteration (Iteration 2), we used infrared proximity sensors, which bounce IR off objects to determine how far away they are. The sensors can measure distance ranging from 10 to 80 cm. Though we don't actually need to measure distance, we can use the sensors to detect if an object is falling through the recycling compartment or trash compartment.

To ensure that the whole area is covered, we used 6 sensors total - 3 for the recycling compartment and 3 for the trash compartment.

January 23, 2015 at 6:12 AM
Created by c_sung
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Worked on creating a visualization of a tree growing.
Used Processing to make a tree grow each time it senses something.
Then couple it with the IR sensors so that the tree grows in case something is put in the recycle bin.
We wondered what to do in case something is put in the Trash bin.
First iteration: Trash Pile
Second Iteration: Trash Bar

 

 

Design Files
January 25, 2015 at 7:58 PM
Created by meghna
Comments (3)
I love it! Are you guys sticking with green leaves? Also, is there any way you can put up a video of the visualization simulation?
almost 2 years ago
I think yes.. green leaves make more sense.. :D
And yes i think so..ill upload it soon.. :)
almost 2 years ago
Please add the Processing sketch as a design file - thanks!
almost 2 years ago

January 26, 2015 at 2:14 AM
Created by c_sung
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  • Better design than just a box
  • Making the box taller to make it easier for users to see the screen
  • A frame to support the screen

January 28, 2015 at 7:54 PM
Created by tomotomo and c_sung
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We made a frame to hold a tablet with the top cover to see if the frame could hold the tablet we will be using for our display. We found out that the top cover is a little small. We need to make a larger one.

January 28, 2015 at 9:53 PM
Created by meghna and c_sung
Comments (1)
These are very nice photographs - great job capturing it from multiple angles!
almost 2 years ago

We had a lot of plans.. from growing a forest on Killian Court to making garbage drop from the sky.
But we ended up deciding on a simple tree growing and flowers falling theme. We might change it in future..make the graphics better as well.

January 29, 2015 at 2:50 PM
Created by c_sung and meghna
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We used a laser cutter for all pieces except for the large curved piece that makes up the body of the waste bin, which was cut by hand.

January 29, 2015 at 9:12 PM
Created by tomotomo and c_sung
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We spray painted most of the waste bin light grey with Montana Gold Acrylic spray paint.

January 29, 2015 at 9:12 PM
Created by tomotomo and c_sung
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We added the colors dark grey and green to our waste bin using colored construction paper to coat the outside of the foam core pieces. Dark grey was used to indicate "trash" and green was used to indicate "recycle".

For "recycle", we also added green tissue paper on top of the colored construction paper coating to add more texture.

January 30, 2015 at 1:01 AM
Created by c_sung
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We glued together the pieces that were ready (aka they had been spray painted or coated with colored construction paper). We are still missing some pieces as they have not been spray painted yet. We will glue them in the morning after we get our new can of spray paint. For now, the frame for the waste bin is sufficient for us to start testing the electronics.

January 30, 2015 at 1:06 AM
Created by c_sung
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We attatched the frame for the holding the Screen. And then fixed the screen/laptop and made the connections proper.

January 30, 2015 at 2:53 AM
Created by c_sung and meghna
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Since our sensor circuit for Iteration 2 was not working consistent, thought about switching to using a beam-breaking circuit with LEDs and photoresistors to detect falling objects. However, we did not end up having the time to prototype this, so we decided to keep working with our IR proximity sensors.

January 30, 2015 at 6:44 AM
Created by c_sung
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We tested with 2 sensors in each bin to see which areas were covered by the sensors. After testing, we decided to use 3 sensors per bin.

January 30, 2015 at 2:35 PM
Created by c_sung
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CAD files for laser cutter. This step is supposed to right above "Modeling display frame."

January 30, 2015 at 7:06 PM
Created by tomotomo
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So the sensors were fitted and calibrated. And the Arduino was coupled with processing so that sensing would change the animation. At first the coupling caused some problems and random shapes appeared on the screen. But we figured it out by adding a buffer time between sending consecutive reading from Arduino to processing.

Design Files
January 30, 2015 at 7:07 PM
Created by tomotomo and meghna
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This is the visualisation. We experimented with different background colours.
So the reward for recycling is more flowers or anew tree.
And the punishment is that all flowers fall off and die.

January 30, 2015 at 10:28 PM
Created by meghna
Comments (1)
Thanks for sharing this video.

Is there any way you could do a screen recording of the Processing sketch? It's kind of difficult to see what's happening to the tree in your YouTube video, and your visualization is very compelling.

If you have a Mac, you can easily do a screen recording using Quicktime. I recall you had an earlier version of the sketch that worked with keyboard input that you could use for the recording.
almost 2 years ago