Process: Surface temperature and current sensor starting 2016-07-05 ending 2016-07-30

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Outputs

Scheduled:

Work

Planned Work: (Requirements are ordered by due date)

Work - Technician experimental: 1.00 Time - Hours due July 5, 2016
Unassigned
Work - Training self: 1.00 Time - Hours due July 5, 2016
Unassigned
Work - Shopping: 1.00 Time - Hours due July 5, 2016
Unassigned
Work events:
July 28, 2016 2.00 Time - Hours Done by Abran

Researched various models of IR sensors and narrowed down the field to a model from Melexis.

Characteristics that were considered include power consumption, price, packaging, field of view, ease of use, interfacing with Xbee.

https://docs.google.com/document/d/18hFu4iwd81Hc-qzLo1ijLLVK6v-XCoKGNP65AFGfRvM/edit#

July 28, 2016 4.00 Time - Hours Done by Abran

Researched various makes and models of clamp-on transformer based current sensors. Narrowed down the field according to required parameters to interface with Xbee ADC pins.

Researched adaptability of current output type sensors with Xbee. compared advantages of current type vs voltage type sensors and settled on current type.

Gave final recommendation after considering ease of use, availability, price, and packaging among other electrical characteristics.

https://docs.google.com/document/d/18hFu4iwd81Hc-qzLo1ijLLVK6v-XCoKGNP65AFGfRvM/edit#

Work - Manual: 1.00 Time - Hours due July 5, 2016
Unassigned
Work - R&D mechanics: 1.00 Time - Hours due July 5, 2016
Unassigned
Work - Meeting: 1.00 Time - Hours due July 5, 2016
Unassigned
Work - Transportation: 1.00 Time - Hours due July 5, 2016
Unassigned
Work - Information mining: 1.00 Time - Hours due July 5, 2016
Unassigned
Work events:
July 28, 2016 3.00 Time - Hours Done by Abran

Research methods of interfacing current output type or voltage output type current sensors with Xbee Pro modules.
Came to conclusion for creating voltage divider circuit with half wave rectification for the input signal.

July 28, 2016 2.00 Time - Hours Done by Abran

Did research on current sensing technologies. Identified Hall Effect sensors as the most suitable technology. Compared various packages, such as Current Transducer with voltage output and current sensor with current output.
Compared IC vs Transformer based current sensing. Worked out basic interfacing with Xbee Pro and narrowed down selection field for the exact component.

https://docs.google.com/document/d/18hFu4iwd81Hc-qzLo1ijLLVK6v-XCoKGNP65AFGfRvM/edit#

July 28, 2016 1.00 Time - Hours Done by Abran

Did basic search for remote temperature sensing technologies. Best solutions are IR sensors.
Focused on the interoperability of digital IR sensors with Xbee. Compared IC based to other packaging type such as TO-39.

Narrowed choice down to models of one specific sensor from Melexis.

https://docs.google.com/document/d/18hFu4iwd81Hc-qzLo1ijLLVK6v-XCoKGNP65AFGfRvM/edit#

July 28, 2016 2.00 Time - Hours Done by Abran

For IR Temperature sensor, researched working principle, various technicalities such as Field of View, emissivity, etc.

July 28, 2016 4.00 Time - Hours Done by Abran

Researched Zigbee modules focusing on the interfacing protocols. Compared electrical characteristics of I/O pins, Analog/ADC pins. Understood technicalities of using different types of modules and benefits/drawback for different types of modules.

July 28, 2016 1.25 Time - Hours Done by Abran

Researched various Zigbee+MCU modules. Compared communication protocols, ADC input and output voltages and recommended Xbee Pro as the best fit.

https://docs.google.com/document/d/18hFu4iwd81Hc-qzLo1ijLLVK6v-XCoKGNP65AFGfRvM/edit#

July 5, 2016 1.00 Time - Hours Done by Abran

Did basic search for viable technologies to come up with a reasonable estimate for prototyping the sensors.
Based on using Arduino as the prototyping platform.

https://docs.google.com/document/d/18CUgTX0koYaTbpTakd_30Gl6BlHEjdFN9iqRG96tfcU/edit

Work - Training others: 1.00 Time - Hours due July 5, 2016
Unassigned
Work - Facilitation and coordination: 1.00 Time - Hours due July 5, 2016
Unassigned
Work - R&D electronics: 1.00 Time - Hours due July 5, 2016
Unassigned
Work - Documenting: 1.00 Time - Hours due July 5, 2016
Unassigned
Work - Recruiting: 1.00 Each due July 5, 2016
Unassigned