System Introspection for System Analysis on Mobile Devices

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7.2.2 Preparations . . . . . . . . . . . . . . . . . . . . . . . . 557.2.3 Method . . . . . . . . . . . . . . . . . . . . . . . . . . . 567.2.4 Results . . . . . . . . . . . . . . . . . . . . . . . . . . . 577.3 Observing the CPU Load of the Robot <strong>System</strong> . . . . . . . . . 597.3.1 Goal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 597.3.2 Preparations . . . . . . . . . . . . . . . . . . . . . . . . 607.3.3 Method . . . . . . . . . . . . . . . . . . . . . . . . . . . 607.3.4 Results . . . . . . . . . . . . . . . . . . . . . . . . . . . 618 Conclusions 649 Outlook 66Bibliography 69List of Figures 71List of Tables and Listings 73Appendix 74ii
Abstract<strong>System</strong> <strong>Introspection</strong> is essential to understand the inner processes controllinga robot which is acting in an autonomous way. To get an idea of the innerstates of the controlling components a developer does not want to interruptthe running system. Moreover analyzing a dozen of complex log files oncethe robot has ended per<strong>for</strong>ming a task consumes a lot of time. This thesispresents a design and an implementation of a system <strong>for</strong> observation that canbe attached to a robot system. The system will collect data of the robotand <strong>for</strong>ward it to a client <strong>for</strong> presentation. XMPP is used as communicationframework which provides functionality <strong>for</strong> exchanging data over a network.The described system was successfully evaluated by attaching the system tothe ToBI plat<strong>for</strong>m.iii
Page 1: Bringing System <s
Page 7 and 8: output, so each component is offeri
Page 9 and 10: of the system and the decisions mad
Page 11 and 12: created a telelaboratory where two
Page 13 and 14: Like the telelaboratory there is a
Page 15 and 16: with a very high frequency which ma
Page 17 and 18: Due to improving technology the use
Page 19 and 20: Figure 4.1: ToBI platfor</s
Page 21 and 22: Figure 4.3: The architecture behind
Page 23 and 24: Figure 4.5: Typical instant messagi
Page 25 and 26: 5 System DesignThe
Page 27 and 28: Figure 5.2: Message exchange betwee
Page 29 and 30: Figure 5.4: Beacon running between
Page 31 and 32: Figure 5.5: Reading and processing
Page 33 and 34: data and only forw
Page 35 and 36: For example a developer can select
Page 37 and 38: Figure 5.13: Principle of tabbed na
Page 39 and 40: 6.1 The Communication InterfaceThe
Page 41 and 42: 6.2 The Probe - Implementation of t
Page 43 and 44: stop all active processes of the co
Page 45 and 46: is received containing the TAG of t
Page 47 and 48: The selected sensors give a good im
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Page 51 and 52: TabConfig - The Status ViewThe TabC
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Each view adds a listener to the co
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LoginController which also observes
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tends the JPanel class. The templat
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7 EvaluationIn the previous chapter
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Name Description CharactersSingleli
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Figure 7.1: Latency of receiving da
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For this thesis only a rough estima
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Laptop CPU load without Probe CPU l
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8 ConclusionsIn the context of this
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9 OutlookGiven this new tool its no
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BibliographyBurrell, A. and A. Soda
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6.10 Main classes of the Java clien
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AppendixUse CasesUse Case 1: Connec
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Use Case 4: Disconnect from compone
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Use Case 9: Sending beacon to keep
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Figure 9.4: Latency of receiving da
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System Introspection for System Analysis on Mobile Devices

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