Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.astro.louisville.edu/software/xmtel/xmtel-7.1/TELESCOPES Дата изменения: Thu Jun 18 19:34:27 2015 Дата индексирования: Sun Apr 10 02:15:36 2016 Кодировка:

XmTel is intended for interactive remote telescope operation. It is not
primarily a robotic telescope control system, but rather a "hands-on" remote
telescope interface with a server that permits remote operation and robotic
control by making use of INDI for command line, scripted, and and interactive
operation.


LX200
=====

XmTel was originally developed to control a Meade LX200 16-inch fork-mounted
telescope. The command set provides for several basic functions that enable
slewing, pointing, fine guiding, and control of the telescope focus, reticle,
and fans. XmTel uses only the basic features of the command set and it should
function equally well for any telescope that uses this interface. It is
essential to have the LX200 hand control initialized for the location and
local time before starting xmtel with this protocol


NexStar
=======

XmTel supports the Celestron NexStar command sets, including auxiliary commands
that access hardware directly. Presently the serial port of the computer should
be connected to the hand controller, not to the "computer" or "PC" port on the
mounting. However, two different command sets are available for this port.

XmTel is actively being used and developed with the Celestron Corrected
Dall-Kirkham C20 telescope. The mounting for this telescope is similar to, but
much more massive than, the CGE Pro series mounting widely available for
11- and 14-inch Schmidt Cassegrains. The extraordinary OTA is now manufactured
by Planewave Instruments as the CDK20.

Any Celestron NexStar telescope should operate with the present version of the
protocol. It has been tested on the C20, the CGE-11, and the GPS-11
alt-azimuth.

The "aux" version, which enables remote, stand alone, startup without use of the
keypad, has only been tested with the the C20. It requires explicitly setting
the gear ratios in software, and these factors will be different on other
telescopes. Some NexStar features of the C20 -- the fan, temperature reading,
and focus control -- are not presently available on other Celestron telescopes.


Software Bisque Paramount
=========================

Support for the Software Bisque Paramount is available through the RTS2
library.



RC Optical Systems Professional Series Fork Mount
=================================================

Most of these were delivered using the Software Bisque control system and are
not suported by XmTel without modification. However, our telescope has a system
built by Dan Azari for RC Optical, for which we have proprietary code. We have
adapted this telescope to the Galil controllers, and the Galil driver included
here will operate a wide class of telescopes with that modification.



Galil Motion Controls Servo Controller
======================================

We are currently developing telescope control systems using Galil's industrial
DMC-41x0 servo controllers to operate small or large DC or AC servo motors in a
single- or dual- encoder modes. It is suitable controlling larger telescopes,
and could be used as a high end replacement for the drive system in the
Paramount or other commercial telescope mounts. The Galil controller can
operate up to four axes, sense switches or contact closure, and be applied to
operate auxiliary instruments on the telesccope as well. With two servos, power
supply, and controller including built-in motor amplifiers the cost in 2013 is
about $3000 (US).

While our implementation of the Galil controller for telescopes is recent and
under development, the driver included here works for a German equatorial and
can be configured for an equatorial fork. It should also work for an alt-az
mounting and image rotator with modification.

We intend to add support for a Renishaw absolute encoder subsystem soon.


Planewave
=========

This version supports the Planewave A200HR with Sidereal Technology controller
for the high precision dual encoder system.

The CDK700 is supported through Planewave software running on a co-hosted virtual
machine. This solution allows us to utilize all of the development work of
Planewave, and integrate their software easily into a Linux-based observatory
software system.



Sidereal Technology
===================

The Sidereal Technology controller is supported for the A200HR mount. The
protocol provided there serves as a model for other uses Sidereal Technology
hardware.



John Kielkopf
kielkopf@louisville.edu