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| en:iot-open:remotelab:sut:fan [2018/03/08 20:41] – gdrabik | en:iot-open:remotelab:sut:fan [2020/07/20 09:00] (current) – external edit 127.0.0.1 |
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| ====== Fan Synchronisation Laboratory ====== | ====== Fan Synchronisation Laboratory ====== |
| //The laboratory is located at Silesian Technical University, Poland, Gliwice Akademicka street number 16, room 320. // | The laboratory is located at Silesian Technical University, Poland, Gliwice Akademicka street number 16, room 320. |
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| ===== Introduction ===== | ===== Introduction ===== |
| //The lab consists of two fans, a laser light source, two photocells, semitransparent mirrors, and microprocesor system for control all of elements. Laser beam can pass thru fans, if propellers are in proper positions. Generaly user can observe the transition by camera or fotocells (for better accurancy).// | 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). |
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| ===== Prerequisites ===== | ===== Prerequisites ===== |
| //Describe prerequisite readings, software, hardware (if any) - note - only those that apply to ALL scenarios, knowledge necessary to understand. I case single scenario requires some extra knowledge/prerequisites, provide it with scenario document, not here.// | 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. |
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| ===== Technical details ===== | ===== Technical details ===== |
| //Provide technical details on the construction of the laboratory, both hardware, and software. Use technical words and sentences. It is to be understood by technology-related people. Consider it as a kind of laboratory hardware and eventually software implementation. Sections below (remove section if not present) present details. Provide circuit, essential mechanical schema, if necessary to use the laboratory and understand its physics/mechanics, etc.// | 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. |
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| ==== Sensors ==== | ==== Sensors ==== |
| //Describe sensors (if any). Provide details on measured values, connection details, accuracy, protocols, its relation to the physical/mechanical part of the laboratory (if any). Add photos and schematics, where the sensor is located. In case the sensor is virtual, do not expose it - present as physical until it is essential to know it regarding study (i.e. code implementation, timings, etc.). Provide links to external resources regarding i.e. necessary libraries, protocol definition, etc.// | 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. |
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| ==== Actuators ==== | ==== Actuators (?)==== |
| //Describe actuators, their impact on the physical/mechanical part of the laboratory device, limits, connections, etc. Add photos and schematics, where the actuator is located. In case actuator is virtual, do not expose it - present as physical until it is essential to know it regarding study (i.e. code implementation, timings, etc.). Provide links to external resources regarding i.e. necessary libraries, protocol definition, etc.// | User can control rotation of fan with two logical output. With using PWM, user can realize change of rotation. |
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| ==== Software, libraries and externals ==== | ==== Software, libraries and externals ==== |
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| ==== Limits ==== | ==== Limits ==== |
| //Provide information about limits on usage, i.e. need for maintenance/service break, access mode (parallel, booking, etc.), manual mechanical reset, etc.// | 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. |
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| ===== Hands-on labs ===== | ===== Hands-on labs ===== |
