APC AP9212 Guía de usuario descargar pdf (Pagina 21)

The Management Interface Board also supports up to 16 user accounts, although this

functionality is not required as the JAS provides user authentication.

The Masterswitch control for the APT was originally done using TELNET. This has been rewritten as

part of this thesis to use the SNMP protocol, covered in detail in Chapter 4.

2.8 Web cameras

There are currently three web cameras installed at the site, detailed information on each

camera is shown below. The video output from each camera is connected to an AXIS 240 Web

camera Server which provides control and image retrieval facilities via an HTTP interface.

Java code, developed by Michael Ashley provides an interface to the web camera server. This

code has been integrated into the Client GUI application, covered in Chapter 5.

2.8.1 Panasonic “fish eye” black and white camera.

Figure 2-10 Sky camera image

This image was taken on a particularly cloudy day. Potentially,

software could determine weather conditions using images from

this camera.

A 2GHz transmitter/receiver is used to transmit video information

to the web camera server to prevent lightning damage.

2.8.2 Sony colour telescope camera

Figure 2-11 Telescope Image

Here we can see the telescope in its parked position. Notice the

section of the roof cut out behind the telescope to allow the

roof to clear the telescope.

This camera is mounted on a Pan, Tilt, and Zoom stage which

allows it to be directed anywhere within the enclosure.

2.8.3 Watec black and white infrared camera.

Figure 2-12 Infrared camera

image

The infrared camera’s field of view cannot be altered. Although

this image was taken during the day, a similar image is obtained

at night when used in conjunction with the Infrared lamp.

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APC AP9212 Guía de usuario Pagina 21