Process: Prototyping stage to Make Optical soil moisture sensor prototype starting 2015-01-22 ending 2015-01-29

If you were logged in and working on this process, you would log your work on this page.

Outputs

Scheduled:

R&D report @Prototyping stage 1.00 Idea due Jan. 29, 2015

Unplanned Production:

Work

Planned Work: (Requirements are ordered by due date)

Documenting: 5.00 Time - Hours due Jan. 29, 2015

Documenting the prototype, its characteristics, behavior, functioning, observations, lessons learned, etc.

Taken by Tibi
Work events:
May 15, 2015 1.00 Time - Hours Done by Tibi
R&d electronics work: 2.00 Time - Hours due April 12, 2016

testing possibilities for balancing two phototransistors.

Taken by Colin
Work events:
April 14, 2016 4.00 Time - Hours Done by Scott

Had discussions with Bruce and a planning session to see if we can get a field trial with an orchard.

Went over test results produced by Colin for the optical sensor and had a discussion with Colin and Bruce about the way forward for the agriculture project. Results suggest that it is the change in refraction index due to the moisture that is diffusing the light as was expected. An interesting conclusion is that the power source from the laptop was producing a lot of noise.

We concluded that we need additional tests to see what are the variations due to temperature, the depth of the groves, etc. Colin will help with that. Scott will develop some field tests to establish the link budget on an orchard at 900MHz and work a bit on the wireless component. Bruce will do some research and do some writing to help promote the cause.

April 5, 2016 2.00 Time - Hours Done by Colin
April 1, 2016 2.00 Time - Hours Done by Scott

Spent some time with Colin and Bruce to reproduce the moisture sensing effect. We were able to see the effect.

Unplanned Work:

Work event: Analysis and strategy work 2.50 Time - Hours Oct. 6, 2016 Done by Marisa

Explored and attributed documentation about Optical Sensor with PODnet affiliates and Encounter ThinkTANK LA. Added links to documentations and discussed with groups the benefits to the sensor

Work event: R&d electronics work 0.10 Time - Hours April 6, 2016 Done by Colin

Amplify phototransistor current with an op-amp

Work event: R&d electronics work 0.00 Time - Hours April 6, 2016 Done by Colin

Amplify phototransistors current

Work event: Training others work 0.50 Time - Hours March 31, 2016 Done by Tibi

Spoke to Cloin about where we are and how I think we should continue to develop this, and documented a bit in then main doc.
https://docs.google.com/document/d/1hmMMSnVA4iQygfQtlQcdtnHQs6OqX18vnC7YoBZxX6Y/edit#

I also gave the link to an instrumentational amp that we worked with, for the sensor network project
https://docs.google.com/document/d/1EVXnkkM1FmmH0BjBJ9bqRI0mOVAZ7I3Ib5ErD4K_jEs/edit#heading=h.e6zpnc5h85aw

Work event: Engineering work 4.00 Time - Hours Nov. 1, 2015 Done by Jim

2 hours of LabView programming for testing the sensor LabView interface with Arduino
2 hours for experimentation, data analysis.

Worked with Tibi

Log of past work, recorded in the main project doc.
https://docs.google.com/document/d/1hmMMSnVA4iQygfQtlQcdtnHQs6OqX18vnC7YoBZxX6Y/edit#

Work event: Engineering work 6.00 Time - Hours Nov. 1, 2015 Done by Tibi

2 hours of LabView programming for testing the sensor LabView interface with Arduino
4 hours for experimentation, data analysis.

Worked with Jim.

Log of past work, recorded in the main project doc.
https://docs.google.com/document/d/1hmMMSnVA4iQygfQtlQcdtnHQs6OqX18vnC7YoBZxX6Y/edit#

Work event: R&d electronics work 5.00 Time - Hours May 6, 2015 Done by Mark
Work event: R&d electronics work 5.00 Time - Hours May 5, 2015 Done by Tibi
Work event: R&d electronics work 5.00 Time - Hours May 5, 2015 Done by Jim

Worked with Tibi on testing the Soil Moisture sensor. Some electronics and software associated.
https://docs.google.com/document/d/1ZhKL1bLIwM6HA7_SnKqK-yCslyts7c7jysqfQTW5gNE/edit

Work event: Technician experimental work 45.00 Time - Hours May 5, 2015 Done by Daniel

3D printing - setting up the printer and preparing the 3D model for printing.
https://lh6.googleusercontent.com/-FeXjDE_HNbM/VUqCyH6FMFI/AAAAAAAAMHk/VElYWFcjZzQ/w644-h859-no/upload_-1

Work event: Programming for product work 4.00 Time - Hours May 5, 2015 Done by John

Worked with Tibi on programming the Arduino Nano for the sensor.
https://docs.google.com/document/d/1ZhKL1bLIwM6HA7_SnKqK-yCslyts7c7jysqfQTW5gNE/edit

Work event: R&d electronics work 5.00 Time - Hours May 4, 2015 Done by Tibi

Worked with Jim and John on testing the Soil Moisture sensor. Some electronics and software associated.
https://docs.google.com/document/d/1ZhKL1bLIwM6HA7_SnKqK-yCslyts7c7jysqfQTW5gNE/edit

Work event: R&d optics work 19.00 Time - Hours Jan. 15, 2015 Done by Bruce

Worked with Tibi on testing two prototypes.
We documented our work here
https://docs.google.com/document/d/1hmMMSnVA4iQygfQtlQcdtnHQs6OqX18vnC7YoBZxX6Y/edit#heading=h.qd4qlqv5qkjq

Work event: R&d optics work 16.50 Time - Hours Jan. 15, 2015 Done by Tibi

Worked with Bruce on testing two prototypes.
We documented our work here
https://docs.google.com/document/d/1hmMMSnVA4iQygfQtlQcdtnHQs6OqX18vnC7YoBZxX6Y/edit#heading=h.qd4qlqv5qkjq

Usable Inputs

3D printer equipment: 1.50 Time - Hours due Jan. 22, 2015

3D printed prototype, by Daniel

Onhand: 3D printer - Phil's 1.00 Each
Onhand: B9Creator 1.00 Each
Onhand: Ethienne's Wilson TS 1.00 Each
Onhand: ORD Solutions FDM Printer 1.00 Each
Used: ORD Solutions FDM Printer 1.50 Time - Hours May 5, 2015 by soilsensor

Process context:

Pattern: Generic R&D
Context: soilsensor
Order: Work order 149 for Make Optical soil moisture sensor prototype due: 2015-01-29

Previous processes:

Product design stage to Make Optical soil moisture sensor prototype starting 2015-01-19 ending 2015-01-22

Next processes:

Manufacturing stage to Make Optical soil moisture sensor prototype starting 2015-01-29 ending 2015-02-05


Process notes:

Prototyping stage of an R&D process. This stage is about making something tangible, in the physical world, that uses a design and that works to a satisfactory level.
During the R&D process there is a cycle between Prototyping and Design, meaning that the prototyping process might unravel problems with the design, which will trigger changes of the design.
Prototyping produces a detailed description of a tangible thing, how it is made, how it functions, how well it functions. This description is based on empirical data or physical experimentation.

This process is also known as Testing and Refinement: Construction and evaluation of multiple pre production versions of the product. Early (alpha) prototypes are usually built with production intent-parts-same geometry and material properties as intended for the production version of the product but not necessarily fabricated with the actual processes to be used in production. Alpha prototypes are tested to determine whether the product will work as designed and whether the product will satisfy the key customer needs. Later (beta) prototypes are usually built with parts supplied by the intended production process. Beta prototypes are extensively evaluated internally and are also typically tested by customer in their own use environment. The goal here is to answer questions about performance and reliability in order to identify necessary engineering changes for the final product.

INPUT: a product design
OUTPUT: a detailed description placed in the main document

More than one prototype can be made, tested and documented during this process.