Safety

There were some problems with the telescope entrance safety sensors. There are two sets of sensors at the front and back of the stairs. The amplifiers for both systems were replaced and the rear light transmitter was changed. New controller/amplifiers modules and transmitters and receivers have been purchased. Later, adjustments were made to the sensitivity setting of the sensors, and the specific operating frequency of the beams.

A worrying aspect is that when the system does not work, this is not specifically registered. This is an intrinsic problem in the design of the system. In the end it was decided to make a additional, passive system that verifies if the safety system is working. This will stop the telescope if the primary system fails.