en:vmds
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- | FIXME **This page is not fully translated, yet. Please help completing the translation.**\\ //(remove this paragraph once the translation is finished)// | ||
- | ====== Visual Meteor Detection Station VMDS01A ====== | ||
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- | ===== Technical equipment ===== | ||
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- | Following technical equipment is used by a visual meteor detection amateur network [[http:// | ||
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- | ==== Lens ==== | ||
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- | The lens has to be sufficiently wide angled and luminous - conditions so far best met by [[http:// | ||
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- | ==== A use of KPF 131HR camera ==== | ||
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- | [[http:// | ||
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- | === IR filter removal from CCD chip === | ||
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- | The most essential change of the camera is the removal of the IR cut filter. Proceed as follows: | ||
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- | {{: | ||
- | {{: | ||
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- | === LED disconnecting === | ||
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- | At the back of the camera you find a continuously shining LED, that might cause reflections from the front cover glass at night. It is therefore recommended to disconnect it during the IR filter removal. | ||
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- | {{: | ||
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- | === Camera settings === | ||
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- | PRC correction? Dark frame? | ||
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- | Before usage the camera has to be set as follows: | ||
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- | * exposition 1/50 s | ||
- | * aperture control DC | ||
- | * BW regime | ||
- | * AGC to middle | ||
- | * brightness ca. 75 | ||
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- | ==== ImagingSource camera | ||
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- | The manual uses [[http:// | ||
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- | === How to make the camera work in Ubuntu === | ||
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- | - https:// | ||
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- | - git clone https:// | ||
- | - sudo ./ | ||
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- | Now it is possible to see the camera in /dev/video0 | ||
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- | 2. Further it is necessary to install ucview [[http:// | ||
- | Ubuntu repository. | ||
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- | sudo apt-get install git autoconf libtool libgettextpo0 gettext gtk-doc-tools libraw1394-dev libpango1.0-dev libgstreamer0.10-dev libxv-dev | ||
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- | git clone https:// | ||
- | cd libunicap | ||
- | ./ | ||
- | cd ../libucil | ||
- | ./ | ||
- | cd ../ | ||
- | ./ | ||
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- | Compile the ucview. | ||
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- | git clone https:// | ||
- | cd ucview | ||
- | ./ | ||
- | cd ../ | ||
- | ./ | ||
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- | make; sudo make install | ||
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- | To test if everything got compiled fine run | ||
- | ucview | ||
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- | Note: On some system you may need root privileges while running ucview to get your camera working. | ||
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- | === Issues with the currently used cameras === | ||
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- | * Signal transmission is not possible over longer distances (in orders of meters). This means that computer has to be very close to the cameras usually under often problematic weather conditions. | ||
- | * Small angular resolution of camera | ||
- | * Small dynamic range | ||
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- | === TODO === | ||
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- | * Software for synthesized all sky camera. | ||
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- | ==== Protection of camera ==== | ||
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- | Camera placed in a way that it has a direct view to the ecliptic has to be protected against direct sunshine that may damage the CCD chip. | ||
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- | It is customary to use a timer, that would close a camera shutter during a day by means of cutting off the power source. | ||
- | [[http:// | ||
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- | This method is not very advantageous because of the additional timer, that could be replaced by the station' | ||
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- | ===== Software ===== | ||
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- | ==== MetRec ==== | ||
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- | [[http:// | ||
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- | ==== UFOCapture ==== | ||
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- | [[http:// | ||
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- | ==== AZcendant ==== | ||
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- | [[http:// | ||
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- | ==== Visual observer ==== | ||
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- | The drawbacks of the currently used programmes for automatic detection of meteor trails could be addressed by a new OpenSource software. It is so far still just a concept - comments are found here: | ||
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- | A final version of detection software should use an [[en: | ||
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- | === The synthesis of all-sky image === | ||
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- | All-sky camera system (composed of more cameras) directly plots a coordinate system to the captured image depending on the current time. At the same time it is possible to use an automatic detection of key objects found in the image. | ||
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- | ===== Data usage ===== | ||
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- | ==== Bolidozor ==== | ||
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- | [[http:// | ||
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- | ==== Meteorology ==== | ||
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- | Because station' | ||
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- | Using photometry we can measure the height of cloud base, its thickness or the extent of the cloud cover. | ||
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- | Other useful output may be the measure of the concentration of dust and aerosols in the atmosphere. | ||
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- | ==== 3D image reconstruction ==== | ||
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- | * [[http:// | ||
- | * [[https:// | ||
- | * [[https:// | ||
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- | ===== References ===== | ||
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- | * [[http:// | ||
- | * An illustration of [[http:// |
en/vmds.txt · Last modified: 2017/01/07 09:28 (external edit)