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7 APT suggestions and enhancements
7.1 Introduction
This Chapter contains a collection of improvements designed to increase the reliability and
functionality of the APT system. These improvements range from hardware and software
upgrades to the development process itself.
7.2 Hardware
7.2.1 Automated changing of astronomical filters
Currently, the switching of astronomical filters (see Appendix E.4) on the APT is a very tedious
process. Automation if this procedure would expand the remote observing capabilities of the
APT. Software control of this system will most likely be implemented as a CAN node.
7.3 Software
7.3.1 Configuration management
Configuration management deals with tracking the evolution of a software project. By
formalising the development processes, its efficiency and reliability can be improved.
The software deployment system, developed as part of this thesis (see Chapter 6) is a significant
part of the configuration management of the APT system, providing a multi-user, distributed
method of development.
However, the APT system is lacking a Change Management strategy. Change management is
essentially an ordered way to track information such as changes through the system. For
example, what specific changes, either improvements or bug fixes, were implemented in a
given release of the software ?
This information is very useful for several reasons:
• If a bug is detected in the current version of the software, configuration management
information will help to determine how this bug was introduced, providing an answer to the
question: “What has changed … ?”, which often results in the first clue as to what the
problem may be, where is was introduced, and by who.
• Hardware may be updated or reconfigured such that previous versions of the code are now
incorrect and may function unpredictably. For example, the Roof was recently rewired and
subsequently recoded. All previous versions of the roof software are now incompatible with
the hardware. This information must also be considered when choosing a trusted version of
the software to roll back to in the event of a new bug being discovered.
Currently the version.properties file is used to track changes with each release.
- Oliver Mather 1
- Abstract 3
- Acknowledgements 5
- Contents 7
- List of Figures 9
- 1 Introduction 11
- 2 APT hardware 13
- 2.3 Mistral 14
- 2.4 Telescope 14
- 2.5 CCD 16
- 2.6 Telescope movement 16
- 2.6.1 Anti backlash motor 17
- 2.6.2 Limit switches 18
- 2.6.3 Tilt sensor 19
- 2.6.4 Macrostation 19
- 2.7 Masterswitch 20
- 2.8 Web cameras 21
- 2.10 Roof 22
- 2.11 ROTSE 23
- ParralelRS232RS232 24
- 3 APT software 25
- 3.3 Command line tools 26
- 3.4.1 Introduction 27
- 3.4.2 Architecture 27
- 3.5 APT server 28
- 4.1 Introduction 31
- 4.3 Code 32
- 4.3.2 Configuration 33
- 4.3.3 SNMP messages 33
- 4.4 JAS integration 34
- 4.4.1 Commands 35
- 4.4.2 Messages 36
- 4.5 Screenshots 37
- 4.6 Conclusion 38
- 5.1 Introduction 39
- 5.2 Architecture 40
- 5.3 Process manager 40
- 5.4 Roof 41
- 5.5 Chat system 43
- Figure 5-8 APT chat system 44
- 5.6 Look and Feel 45
- 5.6.2 Problems 46
- 5.6.3 Screenshots 46
- 5.7 Conclusion 47
- 6 APT software deployment 49
- 6.3.1 Versioning 50
- 6.3.2 Security 51
- 6.4 Compilation 52
- 6.5 Version synchronisation 55
- 6.6 Uploading 56
- 6.7 Conclusion 57
- 7.1 Introduction 59
- 7.2 Hardware 59
- 7.3 Software 59
- 7.3.2 Maintenance 60
- 7.3.3 Client SP server 60
- 7.3.4 Client error control 60
- 7.4 Conclusion 62
- 8 SkinnedTextField 63
- 8.4 TextSkin 64
- 8.5 SkinnedTextFieldDemo 65
- 9 CSIRO SEARFE project 69
- 9.3 Requirements 70
- 9.4 Hardware 71
- 9.5 Architecture 71
- 9.5.1 Data files 72
- 9.6 User interface 73
- 9.6.2 Data visualisation 76
- 9.7.1 Visualisations 80
- 9.8 Conclusion 81
- 10 Conclusion 83
- 10.4 Logging analysis 84
- Bibliography 87
- A. Glossary 89
- B.1. Introduction 91
- B.2. JAS message sender 91
- B.4. Creating JAS commands 91
- B.4.1. JASCommand object 92
- B.4.2. Installing commands 92
- B.5. JAS channel monitoring 93
- C. Software tools 95
- C.1.3. Checkout the code 96
- C.1.4. CVS user interfaces 96
- D. SNMP overview 97
- Response 98
- RequestRequest 98
- E. Astronomy primer 99
- E.1.3. Coordinate epochs 100
- E.2. Astronomical times 101
- E.3. Gamma ray bursts 102
- E.4. Astronomical filters 102
- E.5. Flat fielding 103
- E.6. Cosmic rays 103
- F. Selected code listings 105
- F.1.6. SnmpTrapDaemon.java 121
- F.2. APT deployment system 132
- F.2.3. apt build.xml 134
- F.2.4. lib build.xml 141
- F.3. CSIRO / SEARFE 144
- F.4. TextSkin 145
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