Secdroid: An Improved Alarm Distribution System Master Thesis - IfI

96 Pages·2013·4.89 MB·English

UNIVERSITY OF OSLO
Department of Informatics
Secdroid: An
Improved Alarm
Distribution
System
Master Thesis
Ha˚vard Bauge
March 19th 2013

Secdroid: An Improved Alarm Distribution
System
Ha˚vardBauge
March19th2013
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Abstract
Alarm systems are installed in buildings to protect assets and for people’s
security. Whenalarmsgettriggered, theyrequireafastresponse. Security
companies have security response units that respond to alarm events.
This thesis looks at how the alarm distribution system affects the alarm
responses,andhowhelpfulfeaturesandincreasedoverviewmayimprove
theoverallefficiencyinagroupofresponseunits.
Thisthesislooksatthesystemcurrentlyinuse,andasystempreviously
used by a security company. Based on current short comings, we have
designed and implemented a new system called Secdroid. The system
consists of a server and several clients, where the server distributes alarm
assignments to the clients. Secdroid has more functionality compared to
the systems used by the security company. The most important functions
are maps showing each unit’s assignments and other units in the area,
and functions for calculating duration and distance from other units to
assignments,ifaunitisintheneedofassistance. Thenewsystemhasbeen
testedwithgoodresults. Theusersofthesystemsperformtheirtasksmore
efficiently, resulting in significantly shorter response times. The feedback
fromtheusersisalsoverygoodcomparedtothepreviouslysystemsused
bythesecuritycompany.
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Contents
1 Introduction 1
1.1 Background&Motivation . . . . . . . . . . . . . . . . . . . . 1
1.2 ProblemStatement . . . . . . . . . . . . . . . . . . . . . . . . 3
1.3 Scope&Limitations. . . . . . . . . . . . . . . . . . . . . . . . 4
1.4 Contributions . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.5 Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Background&RelatedWork 7
2.1 Scenario . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1.1 Responsetoassignments . . . . . . . . . . . . . . . . 8
2.1.2 Assignmentlifetime . . . . . . . . . . . . . . . . . . . 9
2.2 PreviousSystemUsedbytheSecurityCompany . . . . . . . 11
2.2.1 Advantages&disadvantages . . . . . . . . . . . . . . 12
2.3 SystemCurrentlyinUsebytheSecurityCompany . . . . . . 12
2.3.1 Applicationlifecycle . . . . . . . . . . . . . . . . . . . 14
2.3.2 Assignmentdistribution . . . . . . . . . . . . . . . . . 15
2.3.3 Activitylog . . . . . . . . . . . . . . . . . . . . . . . . 15
2.3.4 Reporting . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.3.5 Drawbacks. . . . . . . . . . . . . . . . . . . . . . . . . 16
2.4 RelatedWork . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.5 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3 Design&ImplementationofSecdroid 21
3.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.1.1 Systemoverview . . . . . . . . . . . . . . . . . . . . . 22
3.1.2 Databases&classes. . . . . . . . . . . . . . . . . . . . 23
3.2 TheServer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.2.1 Software&solutions . . . . . . . . . . . . . . . . . . . 24
3.2.2 Receive&createassignments . . . . . . . . . . . . . . 26
3.2.3 Distributeassignmentsandmessages . . . . . . . . . 27
3.2.4 Servertoclientmessageformat . . . . . . . . . . . . . 31
3.2.5 Authenticatetheclients . . . . . . . . . . . . . . . . . 32
3.2.6 Updaterequestsfromclients . . . . . . . . . . . . . . 33
3.2.7 Statusupdaterequests . . . . . . . . . . . . . . . . . . 34
3.2.8 Lookupdistancesanddurations . . . . . . . . . . . . 35
3.3 TheClient . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
3.3.1 Clientdevice . . . . . . . . . . . . . . . . . . . . . . . 36
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3.3.2 Clientplatform . . . . . . . . . . . . . . . . . . . . . . 37
3.3.3 SettinguptheAndroiddevelopmentenvironment . 37
3.3.4 SomeofAndroid’sdevelopmentconcepts. . . . . . . 38
3.3.5 Custommadebackgroundclassesofimportance . . . 40
3.3.6 Applicationlifecycle . . . . . . . . . . . . . . . . . . . 41
3.3.7 Localization . . . . . . . . . . . . . . . . . . . . . . . . 43
3.3.8 RegisteringforC2DM . . . . . . . . . . . . . . . . . . 43
3.4 ClientDesign . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
3.4.1 Mapactivity . . . . . . . . . . . . . . . . . . . . . . . . 44
3.4.2 Assignmentlistactivity . . . . . . . . . . . . . . . . . 45
3.4.3 Assignmentviewactivity . . . . . . . . . . . . . . . . 46
3.4.4 Reportingactivity. . . . . . . . . . . . . . . . . . . . . 51
3.5 SecdroidAssignmentManagementInterface . . . . . . . . . 52
3.5.1 Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
3.5.2 Eventsandassignmentslists . . . . . . . . . . . . . . 54
3.5.3 Viewassignment . . . . . . . . . . . . . . . . . . . . . 55
3.5.4 Viewunit . . . . . . . . . . . . . . . . . . . . . . . . . 55
3.6 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
4 Experiments&Discussion 57
4.1 Real-LifeTesting . . . . . . . . . . . . . . . . . . . . . . . . . . 57
4.1.1 Thetestbed . . . . . . . . . . . . . . . . . . . . . . . . 57
4.1.2 Summaryofthetestdays . . . . . . . . . . . . . . . . 58
4.1.3 Thedatabasis . . . . . . . . . . . . . . . . . . . . . . . 58
4.1.4 Responsetimes . . . . . . . . . . . . . . . . . . . . . . 59
4.1.5 Usersrequestingassistance . . . . . . . . . . . . . . . 62
4.1.6 Assignmentdistributiontimes . . . . . . . . . . . . . 62
4.2 Feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
4.2.1 Questionnaire . . . . . . . . . . . . . . . . . . . . . . . 65
4.2.2 Newfunctions’helpfulness . . . . . . . . . . . . . . . 66
4.2.3 Usability . . . . . . . . . . . . . . . . . . . . . . . . . . 67
4.2.4 Comments&suggestions . . . . . . . . . . . . . . . . 73
4.3 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
5 Conclusion 77
5.1 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
5.2 Contributions . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
5.3 FurtherWork . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
5.3.1 UpgradetothenewestAndroidcloud-to-devicemes-
sagingframework . . . . . . . . . . . . . . . . . . . . 79
5.3.2 Imageuploadsupport . . . . . . . . . . . . . . . . . . 79
5.3.3 Electronicreporting . . . . . . . . . . . . . . . . . . . 79
5.3.4 Automaticdistribution . . . . . . . . . . . . . . . . . . 79
5.3.5 Utilizetablets . . . . . . . . . . . . . . . . . . . . . . . 79
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List of Figures
1.1 Exampleofsensorsinaprivatehouse[24] . . . . . . . . . . . 2
2.1 Exampleassignmentandunitdistribution . . . . . . . . . . . 8
2.2 Theassignmentlifetime . . . . . . . . . . . . . . . . . . . . . 10
2.3 Assignmentlifetimeusingamanualsystem . . . . . . . . . . 11
2.4 Flowchartusinganautomatedsystem . . . . . . . . . . . . . 13
2.5 ThePDAapplicationlifecycle . . . . . . . . . . . . . . . . . . 14
2.6 ThePDAreportingscreen . . . . . . . . . . . . . . . . . . . . 16
2.7 PDAhangup . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.8 ScreenshotofGoogle’sfleetmanagementservice[45] . . . . 19
3.1 Systemoverviewmodel . . . . . . . . . . . . . . . . . . . . . 22
3.2 Classanddatabasediagram . . . . . . . . . . . . . . . . . . . 23
3.3 Addresslookupintheassignmentmanagementinterface . . 26
3.4 Creationofanewassignment . . . . . . . . . . . . . . . . . . 27
3.5 ServertoclientassignmentpushusingC2DM . . . . . . . . 28
3.6 ServertoclientassignmentpushusingGCM . . . . . . . . . 30
3.7 Theauthenticationprocess . . . . . . . . . . . . . . . . . . . . 32
3.8 Statusstate-diagram . . . . . . . . . . . . . . . . . . . . . . . 34
3.9 Thedistancesanddurationslookupprocess . . . . . . . . . 35
3.10 Smartphonesalesgrowthfrom2007to2012,byplatform[19] 37
3.11 The application’s activities and how the user can navigate
betweenthem . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
3.12 TheprocessofregisteringforC2DM . . . . . . . . . . . . . . 43
3.13 Mapactivityshowingassignmentsandunits . . . . . . . . . 44
3.14 The application’s home screen containing a list of active
assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
3.15 Theapplication’shomescreencontainingalistofcompleted
assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
3.16 Assignmentviewshowingmessages . . . . . . . . . . . . . . 47
3.17 Theassignmentinformationactivity . . . . . . . . . . . . . . 47
3.18 Assignmentviewshowinglogevents . . . . . . . . . . . . . 48
3.19 Assignmentviewshowingtheoptionsmenu . . . . . . . . . 48
3.20 Assignmentviewshowingthedistancefromotherunits . . 50
3.21 Assignment view showing selection for sending the assign-
menttootherunits . . . . . . . . . . . . . . . . . . . . . . . . 50
3.22 Assignmentviewshowinganewlyreceivedassignment . . 51
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3.23 Assignmentviewshowingoptionswhenanassignmenthas
beencanceled . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
3.24 Reportingactivity,fullreportingscreen . . . . . . . . . . . . 52
3.25 Reportingactivity,alarmtriggeringcauseselection. . . . . . 52
3.26 Reportingactivity,measuresselection . . . . . . . . . . . . . 53
3.27 Reportingactivity,partialreportingscreen . . . . . . . . . . 53
3.28 AnoverviewoftheSecdroidassignmentmanagementinter-
face . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
3.29 Secdroid assignment management interface: Events and
assignmentslists . . . . . . . . . . . . . . . . . . . . . . . . . 54
3.30 Secdroid assignment management interface: Assignment
information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
3.31 Secdroidassignmentmanagementinterface: Unitinformation 56
4.1 TheSamsungGalaxySPlussmartphone[52] . . . . . . . . . 58
4.2 Assignmentsbyalarmtype . . . . . . . . . . . . . . . . . . . 60
4.3 Response times for the test periods and second half of 2012
(whileusingthePDAsystem)compared . . . . . . . . . . . . 60
4.4 Exampleofaassignmentforwardingscenario . . . . . . . . 63
4.5 Assignmentaveragedistributiontimes. . . . . . . . . . . . . 64
4.6 Assignmentdistributiontimesbyseconds . . . . . . . . . . . 64
4.7 The new functions were helpful in performing the tasks
moreefficient . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
4.8 Theclientsolution/softwareisuserfriendly . . . . . . . . . 69
4.9 Theclientsolution/softwaregivesmeagoodoverviewover
myactiveassignments . . . . . . . . . . . . . . . . . . . . . . 70
4.10 Itiseasytoreportbackaftercompletinganassignmentusing
theclientsoftware/solution . . . . . . . . . . . . . . . . . . . 71
4.11 Thedeviceiseasytohandleandcarryaround . . . . . . . . 72
4.12 Thesolution/softwareisreliable . . . . . . . . . . . . . . . . 73
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