EPS@ISEP | The European Project Semester (EPS) at ISEP

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report [2018/06/25 13:20] – [7.7 App Development] team2report [2018/06/27 11:55] (current) – [7.9 Assembly structure] team2
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 ==== - Blackbox ==== ==== - Blackbox ====
-First of all, we did the Blackbox diagram (see figure {{ref>bbd}}). This diagram shows inputs, outputs, components and power supply of the system. Second picture represents the flowchart of the code (see Figure {{ref>flowc}}).+First of all, we did the Blackbox diagram (see figure {{ref>bbd}}). This diagram shows inputs, outputs, components and power supply of the system.
  
 <WRAP centeralign> <WRAP centeralign>
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 </figure> </figure>
 </WRAP> </WRAP>
- 
-== - Adjustments to final design == 
- 
  
 == - Electrical Detail Schematics == == - Electrical Detail Schematics ==
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 These are the data we know (some of the values shown below are taken from the Solidworks 3D modeling software): These are the data we know (some of the values shown below are taken from the Solidworks 3D modeling software):
  
-**Displaced mass of water:** 545.4 g = 0.5454 kg+**Displaced mass of water:** 545 g = 0.545 kg
  
-**Volume of the buoy:** V=285666.78 mm<sup>3</sup> +  1004449.56 mm<sup>3</sup> = 1290116.34 mm<sup>3</sup> = 0.00129011634 m<sup>3</sup>+**Volume of the buoy:** V = 285666 mm<sup>3</sup> +  1004449 mm<sup>3</sup> = 1290116 mm<sup>3</sup> ≈ 0.00129 m<sup>3</sup>
  
-**Mass of the buoy:** W = 291.14 g =0.2914 kg+**Mass of the buoy:** W = 291 g =0.291 kg
  
 **Water density:** ρ = 1000 kg/m<sup>3</sup> **Water density:** ρ = 1000 kg/m<sup>3</sup>
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 |Charging module TP4056 | 20.0 | |Charging module TP4056 | 20.0 |
 |Battery | 43.8 | |Battery | 43.8 |
-|Panel | ~20 | +|Panel | 10.1 | 
-^Sum ^ 517.44 ^+^Sum ^ 226.3 ^
 </WRAP> </WRAP>
 </table> </table>
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-**Total mass of the buoy** (see table {{ref>weight}}): W<sub>b</sub>= 291.14 g + 517.44 g = 805.58 g =0.80558 kg +**Total mass of the buoy** (see table {{ref>weight}}): W<sub>b</sub>= 291 g + 226.4 g =517.4 g = 0.517 kg 
  
-**Weight of the buoy:** P = W<sub>b</sub> • g = 0.80558 kg • 9.81 m/s<sup>2</sup> = 7.9027 N+**Weight of the buoy:** P = W<sub>b</sub> • g = 0.517 kg • 9.81 m/s<sup>2</sup> = 5.07 N
  
-**Buoyant Force:** F<sub>e</sub> = V • g • ρ = 0.00129011634 m<sup>3</sup> • 9.81 m/s<sup>2</sup> • 1000 kg/m<sup>3</sup> = 12.656 N +**Buoyant Force:** F<sub>e</sub> = V • g • ρ = 0.00129 m<sup>3</sup> • 9.81 m/s<sup>2</sup> • 1000 kg/m<sup>3</sup> = 12.7 N 
  
 It holds that: F<sub>e</sub> > P (for free body diagram see figure {{ref>float}}) hence **the buoy is able to float** It holds that: F<sub>e</sub> > P (for free body diagram see figure {{ref>float}}) hence **the buoy is able to float**
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 </WRAP> </WRAP>
  
-=== - Application=+=== - Application===
 The smartphone application is an important feature to offer a pleasant user experience and to drive competitive differentiation, as discussed in the state of the art. Considering the scope of the project and the abilities of the team members the prototype will be divided into an functional application and a aestethical one, which will be explained more precisely in the following.  The smartphone application is an important feature to offer a pleasant user experience and to drive competitive differentiation, as discussed in the state of the art. Considering the scope of the project and the abilities of the team members the prototype will be divided into an functional application and a aestethical one, which will be explained more precisely in the following. 
  
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 </WRAP> </WRAP>
  
-Before assembling the buoy we treated the 3D prints with acetone, this gives it a smooth finish and helps improve the watertightness. +Before assembling the buoy we sanded the 3D prints to smoothen the surface and give it a better look. 
-To assemble the buoy we started to glue the upper and lower part of each shell together. After that we drilled 3.5mm holes in the mounting bosses, this allowed is to glue the metallic, threaded inserts in place. Once this was done, the two seals were placed around the watertight compartments, in the for this foreseen groove. Finally, the two shells were secured together using the 5 M 3.5 screws. To prevent any leakages trough the screw holes, o-rings were inserted between the screws and the mounting bosses. +To assemble the buoy we started to glue the upper and lower part of each shell together. After that we glued the metallic, threaded inserts in the mounting bosses. Once this was done, the two seals were placed around the watertight compartments, in the for this foreseen grooves. Finally, the two shells were secured together using the 5 M 3.5 screws. To prevent any leakages trough the screw holes, o-rings were inserted between the screw heads and the mounting bosses. 
  
 Since the measurements of the buoy had changed, two new technical drawings were created. This can be found in the illustrations below. Since the measurements of the buoy had changed, two new technical drawings were created. This can be found in the illustrations below.
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 <WRAP centeralign> <WRAP centeralign>
 <figure br> <figure br>
-{{ ::render_next_to_pool.jpg?direct&800 |}}+{{ ::render_next_to_pool.jpg?direct&400 |}}
 <caption> Render buoy surrounding 1 </caption> <caption> Render buoy surrounding 1 </caption>
 </figure> </figure>
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 <WRAP centeralign> <WRAP centeralign>
 <figure br> <figure br>
-{{ ::in_water_render_def.jpg?direct&800 |}}+{{ ::in_water_render_def.jpg?direct&400 |}}
 <caption> Render buoy surrounding 2 </caption> <caption> Render buoy surrounding 2 </caption>
 </figure> </figure>
 </WRAP> </WRAP>
 +
 +=== Building Process ===
 +
 +To illustrate the process the team made some pictures while building the prototype. Figure {{ref>bs1}} and figure {{ref>bs2}} show the 3D printing, figure {{ref>fp}} shows the final prototype and, because the electronics are hidden in the prototype, figure {{ref>el}} shows the electronics. 
 +
 +<WRAP centeralign>
 +<figure bs1>
 +{{ :img_20180627_101345.jpg?nolink&400 |}}
 +<caption> Printing part 1 </caption>
 +</figure>
 +</WRAP>
 +
 +<WRAP centeralign>
 +<figure bs2>
 +{{ :img_20180627_101335.jpg?nolink&400 |}}
 +<caption> Printing part 2 </caption>
 +</figure>
 +</WRAP>
 +
 +<WRAP centeralign>
 +<figure fp>
 +{{ :img_20180627_115906.jpg?nolink&400 |}}
 +<caption> Final prototype </caption>
 +</figure>
 +</WRAP>
 +
 +
 +<WRAP centeralign>
 +<figure el>
 +{{ :img_20180627_115921753.jpg?nolink&400 |}}
 +<caption> Electronics </caption>
 +</figure>
 +</WRAP>
 +
 +
 +
 +
 +
 +
 +
 +
  
  
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 The tests were performed, by submerging one temperature sensor to a water cup and leaving another one in the air. The turbidity is tested, by having two separate cups, one with hazy water and another one with clear water. The tests were performed, by submerging one temperature sensor to a water cup and leaving another one in the air. The turbidity is tested, by having two separate cups, one with hazy water and another one with clear water.
- The following figure describes the sensors test readings. Before 16:00, both temperature sensors are in the air. After 16:30, one sensor is hold in palm to test the reading differences. After 17.00 the sensor is put under water. From there on, the water temperature can be seen rising till it almost reaches room temperature. +The following figures describe the sensors test readings. Before 16:00, both temperature sensors are in the air. After 16:30, one sensor is hold in palm to test the reading differences. After 17.00 the sensor is put under water. From there on, the water temperature can be seen rising till it almost reaches room temperature. 
-We have tested the turbidity by changing the sensor between the clear and hazy water cups. In the figure, we can see that turbidity has two values: clear and hazy. The sensors placement was changed at 16:00, 17:00, 18:30 and 19:30. The switches can be seen by the changing from "0" to "1" in the graph. Test was ended at 20h30.+We have tested the turbidity by changing the sensor between the clear and hazy water cups. In the figure {{ref>tb}}, we can see that turbidity has two values: clear and hazy. The sensors placement was changed at 16:00, 17:00, 18:30 and 19:30. The switches can be seen by the changing from "0" , which means clear, to "1", which stands for "hazy", in the graph. Test was ended at 20h30.
  
 <WRAP centeralign> <WRAP centeralign>
 <figure br> <figure br>
-{{ :sensortest.jpg?direct&600 |}} +{{ :temperature_tests.jpg?nolink&600 |}} 
-<caption>Sensor tests graph </caption>+<caption>Temperature tests graph </caption> 
 +</figure> 
 +</WRAP> 
 + 
 +<WRAP centeralign> 
 +<figure tb> 
 +{{:turbidity.jpg?nolink&600|}} 
 +<caption>Turbidity tests graph </caption>
 </figure> </figure>
 </WRAP> </WRAP>
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 <WRAP centeralign> <WRAP centeralign>
 <figure br> <figure br>
-{{ :application.jpg?direct&400 |}}+{{ :iot.jpg?nolink&400 |}}
 <caption> EasyIoT mobile application displaying the data </caption> <caption> EasyIoT mobile application displaying the data </caption>
 </figure> </figure>
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 ==== - Conclusion ==== ==== - Conclusion ====
-//Provide here the conclusions of this chapter and introduce the next chapter.//+The project development was from the first drafts and modules until the final tests clear structured and well going.   
 + 
 +This chapter had addressed the logo and the software, besides some unexpected changes in the software part, satisfactory.   
 +The electronics and the architecture needed to be changed several times until every detail fits to the requirements and in the end both were suiting perfectly to the initial vision.  
 + 
 +The electronic components and the material had been selected carefully and the tests show that the selection was successful. The team cannot trace the issues with the watertightness to the material decision but to the quality of the printing.  
 +The next section concludes the whole project.  
 ===== - Conclusions ===== ===== - Conclusions =====
 ==== - Discussion ==== ==== - Discussion ====
-The main objective of the project was to motivate and unite the Team around the development of Aquality's proof of concept prototype, while improving the active learning and soft skills of each member. This paper reports this journey. +The main objective of the project was to motivate and unite the team around the development of Aquality's proof of concept prototype, while improving the active learning and soft skills of each member. This paper reports this journey. 
  
-The product under development is user-friendly, features Internet connection and is self-sustainable in terms of power. The user-friendly application and the information it provides is unique as far as the team knows. Because of trends in pool management and worlds constant thrive for a greener future, the potential market is expanding.+The product under development is user-friendly, features internet connection and is self-sustainable in terms of power. The user-friendly application and the information it provides is unique as far as the team knows. Because of trends in pool management and worlds constant thrive for a greener future, the potential market is expanding.
  
-Regarding the collaborative learning and teamwork, maintaining the motivation and unity of the Team was not always an easy task. The differences in culture, study fields and personalities can lead to frictions within the team. In the case of the Aquality's Team, none of the latter issues surfaced because the Team members were determined, but flexible. The acquired project management skills helped to allocate tasks, meet deadlines and achieve the goals of the project. +Regarding the collaborative learning and teamwork, maintaining the motivation and unity of the team was not always an easy task. The differences in culture, study fields and personalities can lead to frictions within the team. In the case of the Aquality's team, none of the latter issues surfaced because the Team members were determined, but flexible. The acquired project management skills helped to allocate tasks, meet deadlines and achieve the goals of the project. 
  
-Quoting Sten Pajula, who was responsible for the electronics and coding of prototype, "The overall experience of the project has been positive. The weekly meetings with the supervisors and Team members made the semester pass seamlessly. The Team had the project deadlines always under control and constant progress was a result of well structured work, which would have been much harder without supportive supervisors and lectures. In this semester, I have learned the basics of product development, marketing and improved the knowledge in my study field".+Quoting Sten Pajula, who was responsible for the electronics and coding of prototype, "The overall experience of the project has been positive. The weekly meetings with the supervisors and teammembers made the semester pass seamlessly. The team had the project deadlines always under control and constant progress was a result of well structured work, which would have been much harder without supportive supervisors and lectures. In this semester, I have learned the basics of product development, marketing and improved the knowledge in my study field".
 ==== - Future Development ====   ==== - Future Development ====  
 Further development is necessary to transform the prototype into a product ready for release into the designated markets. The Aquality prototype is constrained by the time, budget, insufficient knowledge in some technical areas and lack of experience in product development. The following aspects should be considered for future development: Further development is necessary to transform the prototype into a product ready for release into the designated markets. The Aquality prototype is constrained by the time, budget, insufficient knowledge in some technical areas and lack of experience in product development. The following aspects should be considered for future development:

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