Journal of Robotics / 2018 / Article / Tab 2

Research Article

Hobbit: Providing Fall Detection and Prevention for the Elderly in the Real World

Table 2

System reliability across 18 PU.
(a)

muc mode StatisticsCall HobbitCome closerStop HobbitEmergencyPick up objectTeach a new objectBring object to userCalendar remindersFollow meMove to location

DeviceDays total226226226226226226226226226226
Days of introduction31313131313131313131
Days switched off55555555555555555555
Days in use140140140140140140140140140140
Days when feature was not working141313198412794910515
Days when feature was only partially working232022444711662831332

CompanionDays total148148148148148148148148148148
Days switched off20202020202020202020
Days in use128128128128128128128128128128
Days when feature was not working141081283178554929
Days when feature was only partially working25161738409543641829

DeviceWorking over days in use81.79%83.57%82.86%70.71%23.21%50.00%21.43%35.36%20.36%77.86%

CompanionWorking over days in use79.30%85.94%87.11%75.78%19.53%49.61%16.80%32.81%21.09%81.64%

(b)

muc mode StatisticsGo rechargeTake a breakTelephoneInformationSurprise meEntertainment audioEntertainment gamesEntertainment fitnessReward

DeviceDays in total226226226226226226226226226
Days of introduction313131313131313131
Days feature was disabled555555555555555555
Days of feature in use140140140140140140140140140
Days when feature was not working191619111111232011
Days when feature was only partially working20622923720276

CompanionDays in total148148148148148148148148148
Days feature was disabled202020202020202020
Days of feature in use128128128128128128128128128
Days when feature was not working10822887261914
Days when feature was only partially working33916723811237

DeviceWorking over days in use79.29%86.43%78.57%88.93%83.93%89.64%76.43%76.07%90.00%

CompanionWorking over days in use79.30%90.23%76.56%91.02%84.77%91.41%75.39%76.17%86.33%

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