Category Archives: Intangible Interaction

Week 3 – Cube – Brainstorm

At first, I didn’t have much of an idea about the cube; I felt like my thoughts were restricted to the shape of the cube. Then I browsed through my diary in the hopes of finding some inspiration. I’m still sticking to the interactive form of content expression and aesthetic expression, here are my two ideas.

Idea 1:  Elpis

Background Story: Pandora’s box
Elpis represented the spirit of hope. She and the other daimons were trapped in a box by Zeus and entrusted to the care of the first woman Pandora. Gods told her that the box contained special gifts from them but she was not allowed to open the box ever. Pandora was trying to constrain her curiosity, but one day she could not hold herself anymore; she opened the box and all the illnesses and hardships hidden in the box started coming out. Pandora was scared because she saw all the evil spirits coming out and tried to close the box as fast as possible, closing Elpis inside.
The myth itself though appears in many different versions; the most distinctive difference is that in some myths Hope does come out. The main purpose of the myth of Pandora though is to address the question of why evil exists in the world.

Storytelling:
Life cannot be constantly lucky, just fortunate. Life is basically made up of disaster, fortune, despair, and hope. Hope is frequently present as a result of the presence of suffering.
Despite the fact that hope is fully trapped in a box and that illness and hardship are inevitable, people continue to try to approach hope in their own unique manner. Each person holds a key, either far or near, to unlock hope.

Sketch: 

When the key inserts into different positions, there should produce different outputs, either light or sound, I haven’t decided on it.

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Idea 2:  Solitude: Everyone should have a room.

Personally, I am a supporter of life aesthetics, which is a branch of philosophy. Jiang Xun’s writings were my first introduction to the concept. He is a poet, painter, writer, and aesthete. Solitude is a major topic in the aesthetics of life. In recent years, I’ve attempted some writing and speculative design centered on the topic. I believe that for a long time, solitude has been a topic deserving of serious consideration.

There is an interesting literal interpretation of Solitude. Sol comes from the Latin word Solari, both of which means sun, and the ancient belief that the sun is the center of the universe, sacred and unique, so sol also means “alone“. Even there is a famous quote from Schopenhauer that”A man can be himself only so long as he is alone; … if he does not love solitude, he will not love freedom; for it is only when he is alone that he is really free. ” Solitude is an active choice. 

There is another literal interpretation of the Chinese word for solitude that was proposed by a Chinese writer, Lin Yutang. He parsed the two Chinese characters for “孤独“- solitude into four parts, which are self, with melons and fruits, with dogs, and with flies, rich enough to build a world.

Storytelling:
Being alone should be a means of enrichment, of coming into yourself, of understanding yourself. When you are alone, the world you view might be considerably different from the world you regularly see. The purpose is to deepen the recognition of solitude and try to trigger people’s reflections.

Sketch:

When the user’s head is in the box, the distance sensor will trigger the light. And user can notice a prompt to blow the pressure sensor, which will trigger the air pump.


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Week2 – Sensor Research

VL6180X Time of Flight Distance Sensor

Miaoye and I choose the VL6180X TOF distance sensor as our research target.

Description:

Instead of estimating the distance by measuring the amount of light reflected back from the object (which is significantly influenced by color and surface), the VL6180X precisely measures the time the light takes to travel to the nearest object and reflect back to the sensor (Time-of-Flight). Since it uses a very narrow light source, it is good for determining the distance of only the surface directly in front of it, the ‘cone’ of sensing is very narrow.

A three-in-one ready-to-use reflowable package: Combining an IR emitter, a range sensor, and an ambient light sensor. 

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Datasheet:

Proximity and ambient light sensing (ALS) module

You can find the datasheet here

Ranging: from 0 to 100mm
[0-100mm(precise measuring), 0-200mm(also could be detected)]

Ambient light sensor: < 1 Lux up to 100kLux; 16-bit output; 8 manual gain settings

Operating voltage: Functional range(2.6 to 3.0V); Optimum range(2.7 to 2.9V)
[Since the chip uses 2.8 VDC, we have included a voltage regulator on board that will take 3-5VDC and safely convert it down. ]

Operating voltage: Functional range(-20 to 70°C ); Optimum range(-10 to 60°C)

 

Strengths & Weakness:

Strengths:

  1. Precise reading for the short distance, suitable for any object to be played with hand.
  2. Sensitive reading, simple to use in any circumstance requiring a captured moment.
  3. Ultra-low power operation, measurements can be automatically performed at user-defined intervals. 

Weakness:

  1. Only detect the object precisely in front of the sensor, but NOT for the nearby objects.2-1
  2. VL6180X does NOT have reverse voltage protection. The sensor will be unresponsive and cannot be detected if you make the mistake of reversing the GND and Vin pins.
  3. The readings are inaccurate when the object is TOO close to the sensor. When my finger is fully pressed on the sensor, it reads 20mm. Miaoye tried her sensor, which read around 10mm for the same scene.

 

Reference:

https://electronics.stackexchange.com/questions/583800/are-there-any-laser-sensors-that-have-a-high-accuracy-at-200-400-mm-with-low-las

https://forums.adafruit.com/viewtopic.php?f=19&p=621355

https://learn.adafruit.com/adafruit-vl6180x-time-of-flight-micro-lidar-distance-sensor-breakout

 

 

 

 

 

 

Week 1 – Intangible Interaction Among Us

Efrat and I choose the Automatic Toothbrush as our research target. 

Observation & Research

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Ideation of “Brushwash”

We decided to focus our project around the automatic toothbrush.  It has come to our attention that the process required from the user today is long, exhaustive, floppy and sometimes even dangerous. The classic “Oral-B” model that can be found today at most shops, requires multiple different actions for the each of the three main functions of the brush:
1- The portable charger that comes with the brush (that can be risky due to it’s electric connection) isn’t very convenient to the user. It usually requires a lot of special attention and isn’t very manageable in most scenarios.
2- The brush-cleaning process requires a lot of manual action, usually the user would be required to use another device for that, such as the sink. This is exactly the same behavior you would assume with the normal brush, therefore we thought it isn’t sufficient.
3- The brush itself is pretty heavy and doesn’t have any object to ground it or any other applicable option to put it in place.
We also thought that the whole combination of water, electricity and mechanical movement is not a very friendly one for the user, and should be avoided at all costs. 

In our solution to these problems, we decided to come up with a “one for all” device that would function as a “service station” for all the functions that are needed. In the same way that a car wash, or a dishwasher delivers the service in one physical space, the same should be for the toothbrush, to make it more efficient and thorough. This will allow better cleaning, better safety and also preserve the battery life and overall mechanical condition of all devices.

The technologies that the Brushwash may adopt:
1- Ultrasonic cleaning for the wash.
2- UV light for disinfection.
3- Ventilating system for drying.
4- Magnetic charging.

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