• Project meeting

1. Informative meeting with supervisors
2. Get the description of the project

• Visit to the data center
• Project meeting
• Group meeting

• Project meeting
• Make a Gant Chart char_gantt.pdf
• Partition of the project to main units

Types of humidifiers:

HumidifierTypes

• Project meeting

Questions 24th March

1. Do we make the web interface by Java?
2. Should we make humidyfier or is it possible buy one and make it control?
3. What humidyfier it's better (ultrasonic)?
4. what about the humidity and temperature dates?
5. The sensors are connected with the computer indirectly?

• Group meeting

1. Share the task beetween us

• Project meeting

Web Interface

• Programs Installing Instructions (JDK, NetPad++, TomCat, MySQL)

Control:

1. Microcontroller: http://www.arduino.cc/

1. PLC : http://www.siemens.com/press/en/pressrelease/?press=/en/pressrelease/2011/industry_automation/iia2011022520.htm

  
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Tutorial about arduino :

http://www.youtube.com/watch?v=fCxzA9_kg6s

http://www.youtube.com/watch?v=_LCCGFSMOr4&feature=fvwrel

….

Ideas how we make the humidifyer:

-Tubes and valves:

draabe-prospecto-general-airfog-esp_1_.pdf

To take the decision about which type of humidifier and control it's better for our needs we did a comparative table with advantatges and disadvantages of all ideas that we had . The order of numbers it's 5 for most value and 1 for less . Finally we add all numbers and the option that had most value was choosen

Comparision of humidifiers

Microcontrollers vs PLC

Shopping list

• PC fans x 20
• filter
• microcontroller
• power supply
• water level sensors

Project meeting

• Would it be possible to use the university's lab for testing the microcontroller?

During this week we made tests of different materials which might be used as a filter in our humidifier. So far, we measured the humidity difference only when PC fan is used, but next week we also consider testing with the use of hairdryer. Below we present the table with the results – except initial and final humidifies and the difference between them, we also embedded our observation about the hygroscopicity and how fast filters get dry. We evaluated this two parameters form 1 to 5. In case of the hygroscopicity 1 is considered as the least hygroscopic, while in case of drying, 1 is considered as the one which gets dry very fast.

Project meeting:

• Presentation of sketch of the humidifiers
• Presentation and discussion obtained results

Testing

We tried to testing our solution and the materials again in 35 m3 room. Every material testing for 3 hours. The materials has re-wetting in every half our. We used PC fan to blow the air. The test results are the following:

Conclusions:

• Pc fans are not enought effective → more effective air blowing system needed
• These materials aren't appropriate to use humidifier filter → original humidifier filters and other parts: http://www.filters-for-home.com/Humidifier_Filters.html

Flowchart

• Humidity controlling and water level sensoring system's flowchart:flowchart.docx

Shopping list

shopping.pdf

Project Meeting

CONTROL DIAGRAM

Humidifier system control

• HV: Humidity Value
• HLS 1,2,3 : Humidity Level Sensor
• HF Stand by: Humidifier Stand by
• WLS 1,2 : Water Level Sensor
• 1st WLA: 1st Water Level Alarm
• 2nd WLA: 2nd Water Level Alarm
• HL OK: Humidity Level is OK
• 1st HLLA: 1st Humidity Level LOW Alarm (Humidity level is under 45%)
• 2nd HLLA: 2nd Humidity Level LOW Alarm (Humidity level is under 40%)
• 1st HLHA: 1st Humidity Level HIGH Alarm (Humidity Level is above 55%)
• 2nd HLHA: 2nd Humidity Level HIGH Alarm (Humidity Level is above 70%)

Project Meeting

1. Problems with the shopping list.
2. Data center results.

Project Meeting

• Shopping list
• Flowchart
• Filter material
• Fan

Humidifier system controlling program for Arduino:

Program tested without connections with web interface. It worked satisfactorily.

Humidifier Control

Project Metting

• Problem with communication between Arduino and Web Interface (Humidity Controlling Program)

Power Diagram