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Posture Correction System International Team (Mechanical and Environmental Informatics). Ahmet Cetinkaya Wonjun Choi Yusuke Ejiri Takuya Iwaki Chris Yao. Mechanical and Environmental Informatics Project November 25, 2009 Instructor: Tomohisa Hayakawa. Contents. Statistics Purpose
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Posture Correction SystemInternational Team (Mechanical and Environmental Informatics) AhmetCetinkaya WonjunChoi Yusuke Ejiri Takuya Iwaki Chris Yao Mechanical and Environmental Informatics Project November 25, 2009 Instructor: Tomohisa Hayakawa
Contents • Statistics • Purpose • Project scope • Implementation • Feasibility • System Overview • Questions
Statistics • Over 10 million days lost per year due to musculo-skeletal absence per year (UK) • Millions spent on therapy and treatment • Reasons for back-pain or injuries among 13,808 people in Japan • Deskwork – 43.8% • Bad posture – 42.9%
Purpose • Correct posture for computer usage • Reduced medical coverage • Increase overall health • Extensive add-on capabilities
Project scope • Device connected to the computer and user • Detects whether user is in ideal posture or not • Warns user when deviating from ideal posture • Alarm system for extended computer usage • Tailored to each user’s individual needs
Implementation • Hardware - SunSpot • One host device, two slave devices • Slave devices attached to user, possibly shoulder blades or chest idea • Accelerometer detecting change in posture • Host device connected to the computer • Wireless communication between host and slave
Implementation (2) • Software • Programmed in Java • Detection algorithm for changes in accelerometer • Warning system • Timer • User interface to customize the Sunspot devices as well as the entire program
Feasibility • Sunspot compatible with almost all platforms • User interface programmed in Java for easy integration • Source code control through Google code • Tasks divided between hardware and software
PostureCorrectionSystem Stepsforinitializingposturecorrectionsystem 1 2 3 4 UserplacestwoSunSPOTDevicesto his/her body Usersets his/her own ideal posture Usersets his/her preferences Userstartstheposturecorrectionsystem
PostureCorrectionSystem Stepsforinitializingposturecorrectionsystem 1 2 3 4 UserplacestwoSunSPOTDevicesto his/her body Usersets his/her own ideal posture Usersets his/her preferences Userstartstheposturecorrectionsystem PostureCorrectionSystemFeatures Warningswhendeviationfrom ideal posture Continuousvisualfeedback Alarm system GraphicalUserInterface
PostureCorrectionSystem Stepsforinitializingposturecorrectionsystem 1 2 3 4 UserplacestwoSunSPOTDevicesto his/her body Usersets his/her own ideal posture Usersets his/her preferences Userstartstheposturecorrectionsystem PostureCorrectionSystemFeatures Warningswhendeviationfrom ideal posture DifferentLevels of Warnings Textualwarning Warningbysound Disablingmouse/keyboard Shuttingdownthecomputer Continuousvisualfeedback Alarm system GraphicalUserInterface
PostureCorrectionSystem Stepsforinitializingposturecorrectionsystem 1 2 3 4 UserplacestwoSunSPOTDevicesto his/her body Usersets his/her own ideal posture Usersets his/her preferences Userstartstheposturecorrectionsystem PostureCorrectionSystemFeatures Warningswhendeviationfrom ideal posture Alarm System Encourageusertotakebreaks Warnusertotake a rest ifworkingtoolong Warnusertogobacktoworkifrestingtoolong Continuousvisualfeedback Alarm system GraphicalUserInterface
PostureCorrectionSystem Stepsforinitializingposturecorrectionsystem 1 2 3 4 UserplacestwoSunSPOTDevicesto his/her body Usersets his/her own ideal posture Usersets his/her preferences Userstartstheposturecorrectionsystem PostureCorrectionSystemFeatures Warningswhendeviationfrom ideal posture Continuousvisualfeedback Show user’s posture on display Graphs and timers Continuousvisualfeedback Alarm system GraphicalUserInterface
PostureCorrectionSystem Stepsforinitializingposturecorrectionsystem 1 2 3 4 UserplacestwoSunSPOTDevicesto his/her body Usersets his/her own ideal posture Usersets his/her preferences Userstartstheposturecorrectionsystem PostureCorrectionSystemFeatures Warningswhendeviationfrom ideal posture GraphicalUserInterface Customizingthe software Save/Loadusersettings Set levels of warnings CustomizingSunSPOTdevices Continuousvisualfeedback Alarm system GraphicalUserInterface
References • Sunspot • one basestation Sun SPOT unit with USB power • two free-range Sun SPOT units with onboard battery • Dimensions of the Sun SPOT are 41 x 23 x 70 mm. Weight is about 54 grams. • http://sunspotworld.com/docs/Red/SunSPOT-OwnersManual.pdf
References (2) • Statistics and charts • http://www.myvoice.co.jp/biz/surveys/11908/index.html