Fan Synchronisation Laboratory

The laboratory is located at Silesian Technical University, Poland, Gliwice Akademicka street number 16, room 320.

The lab consists of two fans, a laser light source, two photocells, semi-transparent mirrors, and microprocessor system for control all of elements. Laser beam can pass thru fans, if propellers are in proper positions. Generally user can observe the transition by camera or photocells (for better accuracy).

User need know:

• elementary optical laws like light beam propagation, functioning of semi-transparent mirror,
• methods of control DC motors,
• consequences of inertia real objects.

Every fans include AC motor and inverter working with frequency depend than input voltage. So user can “see” motor like DC one. User can change speed of rotation with standard methods like PWM or linear voltage regulator. The laser beam passing between propeller is divide by a semitransparent mirror. A part of beam is going to the next fan, second part is reaching to the photocells. Signals from photocells are feedback, and can be used for making algorithm of control. In case second fan there is similar configuration.

A camera gives only general view - Image is refreshed too slow for realize an algorithm. Fundamental sensors are two photocells - it send logic zero, if laser beam don't reach to her, and send logic one in opposite case.

User can control rotation of fan with two logical output. With using PWM, user can realize change of rotation.

Provide a list of software, software libraries and external resources (i.e. files) necessary during code development. Please note, write here only common for all hands-on-labs scenarios (there is a relevant section in scenario template. Remove this section if empty.

Describe communication if it is implemented and sealed (not intended to be implemented by students, or provided i.e. as default code). Present data flow. Describe protocols and details i.e. key-value pairs, etc. Provide how exceptions are handled.

At the same time only one user can programing the controller, although analysing of signal by others (unlimited number) user has sense. Model is provided to continuously work, without service breaks.

List study scenarios (hands-on labs), linking to the Dokuwiki pages with hands-on labs descriptions (there should be a separate page for each scenario). Classify each scenario and refer to the target group using starting keywords: * Beginners * Undergraduates * Masters * Professionals Note, assume that more professional group automatically contains less professional ones. Note - use language and as appropriate to the target group, i.e.:

  * Beginners: Elementary operations on the Arduino 2x16 LCD screen.
  * Undergraduates: Visualizing temperature and humidity on the remote screen.
  * Masters: Using power saving states to limit power consumption.

Give some information how to access help, how to get support in case of the trouble etc.

This Intellectual Output was implemented under the Erasmus+ KA2: Strategic Partnership in the Field of Education, Training, and Youth - Higher Education.
Project IOT-OPEN.EU – Innovative Open Education on IoT: improving higher education for European digital global competitiveness.
Project number: 2016-1-PL01-KA203-026471.

Erasmus+ Disclaimer
This project has been funded with support from the European Commission.
This publication reflects the views only of the author, and the Commission cannot be held responsible for any use which may be made of the information contained therein.

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