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What<\/span> are<\/span> the<\/span> most<\/span> significant<\/span> risks<\/span> that<\/span> could<\/span> jeopardize<\/span> the<\/span> success<\/span> of<\/span> the\u00a0<\/span><\/strong>project?<\/span> How<\/span> are<\/span> these<\/span> risks<\/span> being<\/span> managed?<\/span> What<\/span> contingency<\/span> plans<\/span> are<\/span> ready?<\/span><\/strong><\/p>\n The most significant risk for our project is related to the sensors since the only way to verify that they will work as intended is to directly test them out on a microcontroller. Our main contingency plan is to come up with different sensors that we can use in case our primary plan does not work, such as an implementation of piezosensors instead of an ultrasonic to estimate volume of liquid in the water bottle.<\/p>\n <\/p>\n Most changes regarding the system were mostly hardware-related, as we found more sensors\/utilities that we may potentially want for the product, such as a temperature sensor, gyroscope sensors,\u00a0 and even an OLED display and solar panels. These changes were mostly for battery purposes, and potential costs may include the need to waterproof these specific parts as well.<\/p>\n <\/p>\n <\/p>\n <\/p>\n Part A: … with respect to considerations of public health, safety or welfare. Note: The term \u2018health\u2019 refers to a state of well-being of people in both a physiological and psychological sense. \u2018Safety\u2019 is the absence of hazards and\/or physical harm to persons. The term \u2018welfare\u2019 relates to the provision of the basic needs of people. (Alan)<\/strong><\/p>\n Welfare – encourage more water drinking, help people track, prevent health issues<\/p>\n Health – reading about sensors, following 3-A standards<\/p>\n Our bottle helps promote welfare by promoting more water drinking. The act of carrying a water bottle can increase water intake and hydration [1][2]. Given that most Americans (86%) drink less than eight sixteen ounce glasses of water per day, and 47% of Americans drink woefully little water, at less than\u00a0 three sixteen ounce glasses a day [3], increasing hydration could help prevent health issues among the population. This would be especially true with our smart bottle, that can track how much water a person drinks and motivate them with the social component of comparing their hydration levels with their friends.<\/p>\n As for health, we are carefully considering the materials we use. For sensors, we\u2019ll abide by the 3-A standard – we are looking for sensors that have surfaces that are\u201csmooth, non-porous, non-reactive, and easily cleaned\u201d [4]. Similarly, we want a bottle that can be simply opened for cleaning, and be safely used in support. Reusable water bottles, when not properly cleaned, can accumulate dirt and mold [5], so we will make sure our bottle is easy to wash.<\/p>\n References:<\/p>\n 1-https:\/\/flaske.com\/blogs\/news\/stay-hydrated-refill-a-reusable-bottle<\/a><\/p>\n 2-https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC3103565\/<\/a><\/p>\n 3-https:\/\/civicscience.com\/forty-seven-percent-of-americans-dont-drink-enough-water-plus-more-h2o-insights\/<\/a><\/p>\n 4-https:\/\/www.omega.com\/en-us\/resources\/3a-sensors-sanitary-applications<\/a><\/p>\n
\u2022<\/span> Were<\/span> any<\/span> changes<\/span> made<\/span> to<\/span> the<\/span> existing<\/span> design<\/span> of<\/span> the<\/span> system<\/span> (requirements,\u00a0<\/span><\/strong>block<\/span> diagram,<\/span> system<\/span> spec,<\/span> etc)?<\/span> Why<\/span> was<\/span> this<\/span> change<\/span> necessary,<\/span> what<\/span> costs\u00a0<\/span><\/strong>does<\/span> the<\/span> change<\/span> incur,<\/span> and<\/span> how<\/span> will<\/span> these<\/span> costs<\/span> be<\/span> mitigated<\/span> going<\/span> forward?<\/span><\/strong><\/p>\n