Brief description of the model

• basis of the light system is measurement of the light intesity of the regulated bulb by the photoresistor
• bulb and photoresistor are located into light tunnel
• by moving the upper wall of the tunnel the parazite light can be feed to the photoresistor
• model has its own internal power supply but can be feed also externally
• values can be obtained from the analog or digital output or even from the luxmeter
• there is also LCD display which shows actual bulb voltage

Gallery

System identification

• there are several ways to identify the system
• necessary measurements can be otained by:
  • computer connected to the laboratory card
  • computer connected to the PLC

Light system control

• system can be controlled by the computer connected to the laboratory card or by the PLC
• control by the computer and laboratory card with the means of dicrete PI regulator:

Using the model in pedagogy

• bachelor theses

• PAPCUN, Peter: Realization of closed control circuit of the lighting system
  (supervisor: doc. Ing. Ján Jadlovský, CSc., consultant: Ing. Juraj Chovaňák) - 2009
• LACIŇÁK, Lukáš: Analysis and design of the light system model
  (supervisor: doc. Ing. Ján Jadlovský, CSc., consultant: Ing. Juraj Chovaňák) - 2009