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WELCOME
seminar presentation on Project ara
OVERVIEW
 PROJECT ARA IS THE CODENAME FOR AN INITIATIVE BY GOOGLE THAT AIMS TO DEVELOP
AN OPEN HARDWARE PLATFORM FOR CREATING HIGHLY MODULAR SMARTPHONES.
 THE PLATFORM WILL INCLUDE A STRUCTURAL FRAME THAT HOLDS SMARTPHONE MODULES
OF THE OWNER'S CHOICE, SUCH AS A DISPLAY, KEYBOARD OR AN EXTRA BATTERY.
 IT WOULD ALLOW USERS TO SWAP OUT MALFUNCTIONING MODULES OR UPGRADE
INDIVIDUAL MODULES AS INNOVATIONS EMERGE.
 THE FIRST MODEL OF THE MODULAR PHONE IS SCHEDULED TO BE RELEASED IN JANUARY
2015.
HISTORY
 INITIAL EXPLORATION OF THIS CONCEPT BEGAN IN 2012 AND WORK STARTED ON APRIL 1
2013.
 DUTCH DESIGNER DAVE HAKKENS ANNOUNCED THE PHONEBLOKS MODULAR
PHONE CONCEPT INDEPENDENTLY IN SEPTEMBER 2013.
 MOTOROLA PUBLICLY ANNOUNCED PROJECT ARA ON OCTOBER 29, 2013 AND SAID THEY
WILL BE WORKING COLLABORATIVELY WITH PHONEBLOKS.
 A NEAR-WORKING PROTOTYPE OF AN ARA PHONE WAS PRESENTED AT GOOGLE I/O 2014;
HOWEVER, THE DEVICE FROZE ON THE BOOT SCREEN AND FAILED TO BOOT COMPLETELY.
HARDWARE ARCHITECTURE
ENDOSKELETON
MODULES
E P M
 THE EPMS PROVIDE A LOW-POWER AND USER-CONTROLLABLE METHOD TO SECURELY ATTACH MODULES TO SLOTS IN
THE ENDOSKELETON.
 THE EPM HAS TWO SELECTABLE STATES: THE ATTACH STATE AND RELEASE STATE, CORRESPONDING TO HIGH AND LOW
LEVELS OF MAGNETIC FORCE.
 ELECTRICAL POWER IS NEEDED TO SWITCH BETWEEN THE TWO STATES ONLY; THE EPMS REQUIRE NO SUSTAINED
ELECTRICAL POWER TO MAINTAIN EITHER STATE.
 THE 1X1 AND 2X2 MODULES EACH USE A SINGLE EPM. 1X2 MODULES USE TWO EPMS, ONE FOR EACH VALID MODULE
INSERTION DIRECTION.
 EACH EPM MUST PROVIDE A MINIMUM HOLDING FORCE OF 30 N IN THE ATTACH STATE, AND 3 N IN THE RELEASE STATE.
 THE EPM ATTACHMENT SURFACES ON THE ENDO ARE MADE FROM HIPERCO-50 ALLOY TO PROVIDE ENHANCED
MAGNETIC HOLDING FORCE.
POWER ARCHITECTURE
 THE ARA POWER ARCHITECTURE IS DESIGNED TO ACCOMMODATE THE UNIQUE AND FLEXIBLE
NATURE OF THE PLATFORM.
 USERS OF AN ARA PHONE WILL BE ABLE TO POWER THEIR DEVICE WITH ONE OR MULTIPLE BATTERIES.
 DEPLETED BATTERIES WILL BE ABLE TO SWAP WITH A FRESH ONE, WITHOUT POWERING OF PHONE;
IT ALSO ALLOW CHARGE ONE OR MORE BATTERIES IN THEIR PHONE FROM ONE OR MORE
CHARGING DEVICES.
 A COMMON POWER BUS IS CENTRAL TO THE ARCHITECTURE. THE POWER BUS IS HELD BETWEEN 3.0
AND 5.5 V. THE POWER BUS IS DISTRIBUTED THROUGH THE ENDO FRAME TO EACH INTERFACE BLOCK.
 A POWER MANAGER IN THE ENDO OPTIMIZES POWER CONSUMPTION, REDUCES CURRENT
LEAKAGES, AND PROVIDES PROTECTION AGAINST OVER CURRENTS.
CONTINUES…..
 ARA MODULES FALL INTO THREE CATEGORIES IN RELATION TO THE POWER ARCHITECTURE:
POWER CONSUMERS, CHARGING MODULES, AND POWER STORAGE MODULES.
 THE POWER CONSUMER MODULE DRAWS POWER DIRECTLY FROM THE POWER BUS, AND
VOLTAGE REGULATOR(S) WITHIN THE MODULE STEPS DOWN AND REGULATES THE VOLTAGE FROM
THE BUS FOR VARIOUS CIRCUITS WITHIN THE MODULE.
 CHARGING MODULES CAN SUPPLY EXTERNALLY DERIVED POWER TO THE POWER BUS.
CHARGING MODULES MAY DRAW A SMALL AMOUNT OF CURRENT FROM THE POWER BUS
DURING EPM ACTIVATION AND THE MODULE ENUMERATION PROCESS, BUT CURRENT FLOWS
NORMALY IN ONE DIRECTION, FROM THE MODULE TO THE BUS.
 POWER STORAGE MODULES PRIMARILY INCLUDE BATTERY MODULES AND CAN SUPPLY POWER TO
THE REST OF THE SYSTEM OR DRAW POWER FROM THE BUS FOR RECHARGING.
EXTENDED ARCHITECTURE
 THE ENVELOPE FOR A MODULE COMPRISES THE STANDARD DIMENSIONS FOR THE MODULE TO
CONFORM TO THE ARA ENDOS.
 WHILE A MODULE WILL IDEALLY FIT WITHIN THESE VERY SPECIFIC DIMENSIONS, MODULES ARE
ALLOWED TO EXCEED THE STANDARD ENVELOPE IN THE Y (TOP-BOTTOM, 20 CM) AND Z
(THICKNESS, 2.5 CM) DIRECTIONS.
 MODULES ARE NOT ALLOWED TO EXCEED THE ENVELOPE IN THE X (SIDE-SIDE) DIRECTION.
 MODULES WITH DIMENSIONAL EXCEEDANCES MUST HAVE A CUSTOM SAFETY SHIELD AND
ENSURE ALL ELECTRICALLY ACTIVE COMPONENTS ARE ENCAPSULATED WITHIN IT.
 EXAMPLE : REFLECTIVE PULSE OXIMETER MODULE, THERMAL IMAGER MODULE.
SOFTWARE ARCHITECTURE
SYSTEM-LEVEL FUNCTIONS
 MODULE DETECT
 ENUMERATION
 EPM CONTROL
 ACTIVE THERMAL MANAGEMENT
ADVANTAGES
 LOW PRICE
 CHEAPER REPAIRS
 CUSTOMIZATION
 INCREASED LIFE
 BATTERY LIFE
 SUPPORT SPECIALISATION
DISADVANTAGES
 SIZE OF THE PHONE
 TESTING ISSUE
 DESIGN
seminar presentation on Project ara
QUESTIONS PLEASE……..?
THANK YOU
PRESENTED BY
NAME
CLASS

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seminar presentation on Project ara

  • 3. OVERVIEW  PROJECT ARA IS THE CODENAME FOR AN INITIATIVE BY GOOGLE THAT AIMS TO DEVELOP AN OPEN HARDWARE PLATFORM FOR CREATING HIGHLY MODULAR SMARTPHONES.  THE PLATFORM WILL INCLUDE A STRUCTURAL FRAME THAT HOLDS SMARTPHONE MODULES OF THE OWNER'S CHOICE, SUCH AS A DISPLAY, KEYBOARD OR AN EXTRA BATTERY.  IT WOULD ALLOW USERS TO SWAP OUT MALFUNCTIONING MODULES OR UPGRADE INDIVIDUAL MODULES AS INNOVATIONS EMERGE.  THE FIRST MODEL OF THE MODULAR PHONE IS SCHEDULED TO BE RELEASED IN JANUARY 2015.
  • 4. HISTORY  INITIAL EXPLORATION OF THIS CONCEPT BEGAN IN 2012 AND WORK STARTED ON APRIL 1 2013.  DUTCH DESIGNER DAVE HAKKENS ANNOUNCED THE PHONEBLOKS MODULAR PHONE CONCEPT INDEPENDENTLY IN SEPTEMBER 2013.  MOTOROLA PUBLICLY ANNOUNCED PROJECT ARA ON OCTOBER 29, 2013 AND SAID THEY WILL BE WORKING COLLABORATIVELY WITH PHONEBLOKS.  A NEAR-WORKING PROTOTYPE OF AN ARA PHONE WAS PRESENTED AT GOOGLE I/O 2014; HOWEVER, THE DEVICE FROZE ON THE BOOT SCREEN AND FAILED TO BOOT COMPLETELY.
  • 8. E P M  THE EPMS PROVIDE A LOW-POWER AND USER-CONTROLLABLE METHOD TO SECURELY ATTACH MODULES TO SLOTS IN THE ENDOSKELETON.  THE EPM HAS TWO SELECTABLE STATES: THE ATTACH STATE AND RELEASE STATE, CORRESPONDING TO HIGH AND LOW LEVELS OF MAGNETIC FORCE.  ELECTRICAL POWER IS NEEDED TO SWITCH BETWEEN THE TWO STATES ONLY; THE EPMS REQUIRE NO SUSTAINED ELECTRICAL POWER TO MAINTAIN EITHER STATE.  THE 1X1 AND 2X2 MODULES EACH USE A SINGLE EPM. 1X2 MODULES USE TWO EPMS, ONE FOR EACH VALID MODULE INSERTION DIRECTION.  EACH EPM MUST PROVIDE A MINIMUM HOLDING FORCE OF 30 N IN THE ATTACH STATE, AND 3 N IN THE RELEASE STATE.  THE EPM ATTACHMENT SURFACES ON THE ENDO ARE MADE FROM HIPERCO-50 ALLOY TO PROVIDE ENHANCED MAGNETIC HOLDING FORCE.
  • 9. POWER ARCHITECTURE  THE ARA POWER ARCHITECTURE IS DESIGNED TO ACCOMMODATE THE UNIQUE AND FLEXIBLE NATURE OF THE PLATFORM.  USERS OF AN ARA PHONE WILL BE ABLE TO POWER THEIR DEVICE WITH ONE OR MULTIPLE BATTERIES.  DEPLETED BATTERIES WILL BE ABLE TO SWAP WITH A FRESH ONE, WITHOUT POWERING OF PHONE; IT ALSO ALLOW CHARGE ONE OR MORE BATTERIES IN THEIR PHONE FROM ONE OR MORE CHARGING DEVICES.  A COMMON POWER BUS IS CENTRAL TO THE ARCHITECTURE. THE POWER BUS IS HELD BETWEEN 3.0 AND 5.5 V. THE POWER BUS IS DISTRIBUTED THROUGH THE ENDO FRAME TO EACH INTERFACE BLOCK.  A POWER MANAGER IN THE ENDO OPTIMIZES POWER CONSUMPTION, REDUCES CURRENT LEAKAGES, AND PROVIDES PROTECTION AGAINST OVER CURRENTS.
  • 10. CONTINUES…..  ARA MODULES FALL INTO THREE CATEGORIES IN RELATION TO THE POWER ARCHITECTURE: POWER CONSUMERS, CHARGING MODULES, AND POWER STORAGE MODULES.  THE POWER CONSUMER MODULE DRAWS POWER DIRECTLY FROM THE POWER BUS, AND VOLTAGE REGULATOR(S) WITHIN THE MODULE STEPS DOWN AND REGULATES THE VOLTAGE FROM THE BUS FOR VARIOUS CIRCUITS WITHIN THE MODULE.  CHARGING MODULES CAN SUPPLY EXTERNALLY DERIVED POWER TO THE POWER BUS. CHARGING MODULES MAY DRAW A SMALL AMOUNT OF CURRENT FROM THE POWER BUS DURING EPM ACTIVATION AND THE MODULE ENUMERATION PROCESS, BUT CURRENT FLOWS NORMALY IN ONE DIRECTION, FROM THE MODULE TO THE BUS.  POWER STORAGE MODULES PRIMARILY INCLUDE BATTERY MODULES AND CAN SUPPLY POWER TO THE REST OF THE SYSTEM OR DRAW POWER FROM THE BUS FOR RECHARGING.
  • 11. EXTENDED ARCHITECTURE  THE ENVELOPE FOR A MODULE COMPRISES THE STANDARD DIMENSIONS FOR THE MODULE TO CONFORM TO THE ARA ENDOS.  WHILE A MODULE WILL IDEALLY FIT WITHIN THESE VERY SPECIFIC DIMENSIONS, MODULES ARE ALLOWED TO EXCEED THE STANDARD ENVELOPE IN THE Y (TOP-BOTTOM, 20 CM) AND Z (THICKNESS, 2.5 CM) DIRECTIONS.  MODULES ARE NOT ALLOWED TO EXCEED THE ENVELOPE IN THE X (SIDE-SIDE) DIRECTION.  MODULES WITH DIMENSIONAL EXCEEDANCES MUST HAVE A CUSTOM SAFETY SHIELD AND ENSURE ALL ELECTRICALLY ACTIVE COMPONENTS ARE ENCAPSULATED WITHIN IT.  EXAMPLE : REFLECTIVE PULSE OXIMETER MODULE, THERMAL IMAGER MODULE.
  • 13. SYSTEM-LEVEL FUNCTIONS  MODULE DETECT  ENUMERATION  EPM CONTROL  ACTIVE THERMAL MANAGEMENT
  • 14. ADVANTAGES  LOW PRICE  CHEAPER REPAIRS  CUSTOMIZATION  INCREASED LIFE  BATTERY LIFE  SUPPORT SPECIALISATION
  • 15. DISADVANTAGES  SIZE OF THE PHONE  TESTING ISSUE  DESIGN