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

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report [2013/06/11 23:17] – [Functionalities] team2report [2013/06/14 16:45] (current) – [Architecture and design] team2
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 === Objectives === === Objectives ===
-The main objective is to design and develop a pet tracking system that complies with the requirements described in //1.1.// Once the main problem is solved, we want to create a +The main objective is to design and develop a pet tracking system that complies with the requirements described in //1.1.// Once the main problem is solved, we want to create a unique environment where the pet owner can, not only know the pet’s location accurately, but also monitor its levels of activity during the day and share it on social media.
 ==== Expected Results ==== ==== Expected Results ====
 The product needs to meet the original requirements to satisfy our client, José Barros Oliveira. In addition to these basic features,  The product needs to meet the original requirements to satisfy our client, José Barros Oliveira. In addition to these basic features, 
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 Garmin is a well-known navigation company from Switzerland. They provide navigation systems for all kinds of vehicles and activities as well as equipment specialized for hunters. In their animal department, Garmin offers dog tracking and pet obedience products. The quality of their products is of high standard but a high price follows. Their cheapest complete dog tracking system is set at 500 EUR and it includes a handheld device worth 300 EUR and a collar worth 200 EUR (Figure 3). Garmin is a well-known navigation company from Switzerland. They provide navigation systems for all kinds of vehicles and activities as well as equipment specialized for hunters. In their animal department, Garmin offers dog tracking and pet obedience products. The quality of their products is of high standard but a high price follows. Their cheapest complete dog tracking system is set at 500 EUR and it includes a handheld device worth 300 EUR and a collar worth 200 EUR (Figure 3).
  
-[[http://мега.net/images/garmin/Garmin_Astro_320.jpg]]+{{:garmin_astro.jpg?300|}} 
 //Figure 3 - Garmin Astro// //Figure 3 - Garmin Astro//
  
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 Snaptracs is a Qualcomm company. Qualcomm is an American semiconductor company that specialize in wireless telecommunication. They have one product called “Tagg” (Figure 4) Snaptracs is a Qualcomm company. Qualcomm is an American semiconductor company that specialize in wireless telecommunication. They have one product called “Tagg” (Figure 4)
  
-http://www.maximumpc.com/files/imagecache/futureus_imagegallery_fullsize/gallery/tagg_gallery_2.jpg+{{:tagg.jpg?300|}} 
 //Figure 4 - Tagg// //Figure 4 - Tagg//
  
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 Since there is only one I2C bus available in the analog pins 4 (Serial Data Line) and 5 (Serial Clock), and both the accelerometer and the EEPROM need to access it, it was necessary to adapt and control the bus access. To avoid including more hardware to the device, i.e. an I2C multiplexer, it was decided to control the power supply for this modules using the digital pins 10 and 11. This way, both devices can share the I2C bus and use it only when requested. Figure 28 illustrates the power distribution system. Since there is only one I2C bus available in the analog pins 4 (Serial Data Line) and 5 (Serial Clock), and both the accelerometer and the EEPROM need to access it, it was necessary to adapt and control the bus access. To avoid including more hardware to the device, i.e. an I2C multiplexer, it was decided to control the power supply for this modules using the digital pins 10 and 11. This way, both devices can share the I2C bus and use it only when requested. Figure 28 illustrates the power distribution system.
  
-{{:power_schematic.jpg?300|}}+{{:power_schematicchanged.jpg?300|}}
  
 //Figure 28 - Power schematic// //Figure 28 - Power schematic//
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 The total power consumption was calculated using the expression: The total power consumption was calculated using the expression:
 +{{ :sin_tituloformular.png?nolink |}}
 +T<sub>battery</sub> – Battery autonomy, in hours \\                   I<sub>off</sub> – Consumption while OFF/IDLE, in A \\
 +Q<sub>B</sub> – Battery’s capacity, in Ah          \\                 t<sub>on</sub> – Time ON, in minutes/day\\
 +I ̅– Average consumption, in A                      \\                t<sub>off</sub> – Time OFF/IDLE, in minutes/day\\
 +I<sub>on</sub> – Consumption while ON, in A           \\              t<sub>day</sub> – Minutes in the day, 1440 minutes\\
 +
 +
 +
  
-PLEASE, INSERT IT!  
  
  
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 Table 12 presents these conditions as well as the expected power autonomy both in hours and days. Table 12 presents these conditions as well as the expected power autonomy both in hours and days.
 + 
 +//Table 12 - Power consumption with regular use//
 +^ ^** t_on(min/day)** ^ t_off(min/day) ^ I_on(A) ^ I_off(A) ^I ̅(A)  ^ T_battery (hours) ^T_battery (days)^
 +| GSM |48|1392|400,0E-3|2,0E-3|15,3E-3|53,30|2,2|
 +| GPS |24|1416|75,0E-3|1,0E-3|2,2E-3|:::| ::: |
 +| Accel |1344|1152|24,0E-6|6,0E-6|22,8E-6|:::| :::| 
 +| Arduino |1440|0|8,0E-3|1,5E-3|8,0E-3|:::| :::|
 +| Memory |24|1416|5,0E-3|10,0E-6|93,2E-6|:::| :::| 
 +| Current loss |1440|0|2,0E-3|0|2,0E-3|:::| ::: |
 +| **Total** |||490,0E-3|4,5E-3|27,6E-3|:::| ::: |
 +
  
-Table 12 - Power consumption with regular use PLEASE INSERT  
  
 Although the device does no present a high autonomy, the 48 hour objective was surpassed.  Although the device does no present a high autonomy, the 48 hour objective was surpassed. 
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 Table 13 presents these conditions as well as the expected power autonomy both in hours and days. Table 13 presents these conditions as well as the expected power autonomy both in hours and days.
  
-Table 13 - Power consumption in tracking mode PLEASE INSERT  +//Table 13 - Power consumption in tracking mode// 
- +^ ^** t_on(min/day)** ^ t_off(min/day) ^ I_on(A) ^ I_off(A) ^I ̅(A)  ^ T_battery (hours) ^T_battery (days)^ 
 +| GSM |1440|0|400,0E-3|2,0E-3|400,0E-3|3,03|0,1| 
 +| GPS |1440|1440|75,0E-3|1,0E-3|75,0E-3|:::| ::: | 
 +| Accel |0|1440|24,0E-6|6,0E-6|6,0E-6|:::| ::: | 
 +| Arduino |1440|0|8,0E-3|1,5E-3|8,0E-3|:::| ::: | 
 +| Memory |0|1440|5,0E-3|10,0E-6|10,0E-6|:::| ::: | 
 +| Current loss |1440|0|2,0E-3|0|2,0E-3|:::| ::: | 
 +| **Total** |||490,0E-3|4,5E-3|485,0E-3|:::| ::: |
  
 It is visible that the tracking mode consumes much more power than the regular mode. It is realistic to assume that three hours is enough to track and salvage the pet, although it a small amount of time. It is visible that the tracking mode consumes much more power than the regular mode. It is realistic to assume that three hours is enough to track and salvage the pet, although it a small amount of time.
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 +==== Tests ====
  
 +In order to assure the product’s quality, it is mandatory to perform some tests. These tests will evaluate the product’s mechanical, electrical and software performance.
  
 +===Mechanical and Electrical===
  
 +In order to decide upon the tests, it is necessary to analyse the requirements:
  
  
- 
- 
- 
- 
-==== Tests ==== 
- 
- 
-===Mechanical and Electrical=== 
- 
-**Requirements** 
  
    * The product must comply with the following EU Directives:    * The product must comply with the following EU Directives:
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              o Restriction of Hazardous Substances (ROHS) in Electrical and Electronic Equipment Directive (2002/95/EC 2003-01-27)              o Restriction of Hazardous Substances (ROHS) in Electrical and Electronic Equipment Directive (2002/95/EC 2003-01-27)
  
-   * The product must adopt and use the International System of Units (The NIST International Guide for the use of the International System of Units).+   * The product must adopt and use the International System of Units [2]
    * The module must be light, small and portable. Maximum size: 6.5 cm x 6.5 cm     * The module must be light, small and portable. Maximum size: 6.5 cm x 6.5 cm 
    * The modules battery must have at least 48h power autonomy.    * The modules battery must have at least 48h power autonomy.
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    * The module mustn't contain extremely toxic materials like heavy metals.    * The module mustn't contain extremely toxic materials like heavy metals.
    
-**Tests**+The following tests must be done:
  
    * Track the product (Standard state)    * Track the product (Standard state)
    * Check Secure Area functionality    * Check Secure Area functionality
    * Check accuracy in meters.    * Check accuracy in meters.
-   * Track the product in different situations+   * Track the product in different situations:
           - Rain (water)           - Rain (water)
           - Cold (+, ~0 , -)           - Cold (+, ~0 , -)
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 ===Software=== ===Software===
  
-**Requirements**+Requirements: 
  
    * The software must be made using open source technologies.    * The software must be made using open source technologies.
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    * The software must be able to display track using Google Maps/Google Earth.      * The software must be able to display track using Google Maps/Google Earth.  
  
-**Tests**+Tests to perform:
  
    * Create new user (Using standard user account)    * Create new user (Using standard user account)
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-==== Conclusion ==== +==== Time management ====  
-At this moment it is not possible for us to draw any conclusions regarding the project. We can only assure we will continue to do our best.+ 
 +After a couple of weeks into the project we were advised to start using Scrum to plan our project. We used Scrum for 4 sprints, all sprints lasted 2 weeks each. After 8 weeks we decided to stop planning in sprints since we did not see enough benefits of using it and we used the hours we spent on it weekly for something else. We used our Gantt chart to keep track of what had to be done instead. 
 + 
 +We ordered all of our components in April to have enough time to assemble and test the product thoroughly. Due to an economic setback, our plans to assemble our product latest in the beginning of May were pushed back until the last week of the European Project Semester in the beginning of June. This means that we had to assemble, test and write results in less than one week. The Gantt chart gives a good overview of how stressful the last week was. This has affected the quality of the final product negatively. Possible bugs might have slipped past our internal quality control since we could not do as many tests as we had initially planned.  
 + 
 + 
 ===== Conclusions ===== ===== Conclusions =====
  
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 ===== Bibliography ====== ===== Bibliography ======
  
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 + 
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 + 
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 + 
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 + 
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 + 
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 + 
 + 
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 + 
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 + 
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 + 
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 + 
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 + 
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 + 
 +[40] “20 Channel EM-408 SiRF III Receiver with Antenna/MMCX - SparkFun Electronics.” [Online]. Available: https://www.sparkfun.com/products/8234. [Accessed: 14-Apr-2013]. 
 + 
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 + 
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 + 
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 + 
  
-[17] “Nickel–metal hydride battery,” Wikipedia, the free encyclopedia. 05-Mar-2013. 
  
-[18] “Weird and Wonderful Batteries - Battery University.” [Online]. Available: http://batteryuniversity.com/learn/article/weird_and_wonderful_batteries/. [Accessed: 02-Apr-2013]. 
  
-[19] “Advantages & Limitations of the Lithium-ion Battery - Battery University.” [Online]. Available: http://batteryuniversity.com/learn/article/is_lithium_ion_the_ideal_battery. [Accessed: 12-Mar-2013]. 
  
-[20] “Lead–acid battery - Wikipedia, the free encyclopedia.” [Online]. Available: http://en.wikipedia.org/wiki/Lead%E2%80%93acid_battery. [Accessed: 02-Apr-2013]. 
  
-[21] “Statistics Finland - Structure of Earnings 2011.” [Online]. Available: http://tilastokeskus.fi/til/pra/2011/pra_2011_2013-04-05_tie_001_en.html. [Accessed: 12-Apr-2013].+===== Appendix ======
  
-[22] “SKL – FKK ry - Finnish Kennel Club.” [Online]. Available: http://www.kennelliitto.fi/EN/kennelclub/kennelclub.htm. [Accessed: 12-Apr-2013].+Appendix A – Bulk pricing
  
-[23] K. C. J. &. M. T. Corcoran, "Social Comparison: Motives, standards and mechanisms," in Theories in social psychology, Oxford, UK, Wiley-Blackwell, 2011, pp. 119-139.+{{:bulk_pricing.jpg?300|}}
  
-[24] N. I. of S. and T. M. Engineering, English: Product’s lifecycle. 2008.+{{:possible_future_models_.jpg?300|}}
  
-[25] “How to Recycle Batteries - Battery University.” [Online]. Available: http://batteryuniversity.com/learn/article/recycling_batteries. [Accessed: 12-Apr-2013]. 
  
-[26] “Battery Recycling as a Business - Battery University.” [Online]. Available: http://batteryuniversity.com/learn/article/battery_recycling_as_a_business. [Accessed: 12-Apr-2013].+Appendix B – Survey results 
  
-[27] “Triple Axis Accelerometer Breakout - MMA8452Q - SparkFun Electronics.” [Online]. Available: https://www.sparkfun.com/products/10955. [Accessed: 12-Apr-2013].+{{:survey_results.jpg?300|}}
  
-[28] “HowStuffWorks ‘Lithium-ion Battery Life and Death’.”[Online]. Available: http://electronics.howstuffworks.com/everyday-tech/lithium-ion-battery2.htm. [Accessed: 12-Apr-2013]. 
  
-[29] “ADH8066 GSM Module - SparkFun Electronics.” [Online]. Available: https://www.sparkfun.com/products/10138. [Accessed: 14-Apr-2013].+Appendix C and D
  
-[30] “20 Channel EM-408 SiRF III Receiver with Antenna/MMCX - SparkFun Electronics.” [Online]. Available: https://www.sparkfun.com/products/8234. [Accessed: 14-Apr-2013].+{{:appendix_c_and_d.pdf|}}

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