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Islamic University of Gaza Faculity of Engineering Electrical & Computer Engineering Department

Islamic University of Gaza Faculity of Engineering Electrical & Computer Engineering Department. Prepared By:-. Doaa El- thalatheny Nesreen Salem- Deeb Nermeen abu-Lehya Yasmeen El- Saqqa Dr. Hatem El- Aydi. Supervised By:-. Content. Objectives. Greenhouse. SCADA. LabVIEW.

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Islamic University of Gaza Faculity of Engineering Electrical & Computer Engineering Department

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  1. Islamic University of Gaza Faculity of Engineering Electrical & Computer Engineering Department

  2. Prepared By:- Doaa El-thalatheny Nesreen Salem-Deeb Nermeenabu-Lehya Yasmeen El-Saqqa Dr. Hatem El-Aydi Supervised By:-

  3. Content Objectives Greenhouse SCADA LabVIEW Hardware Software

  4. Objective • Develop monitoring, supervisory control, and archiving system for agriculture system in a greenhouse . • Rationalize consumption of water. • To control numerous environmental conditions for greenhouse. • To provide overall efficiency for greenhouse owners.

  5. Greenhouse • Is a structure with a glass or plastic roof and frequently glass or plastic walls. • It heats up because incoming solar radiation from the sun warms plants, soil, and other things inside the building. • The reason for growing plants in greenhouses is to control the environment. • A greenhouse allows the plants to grow in any location and at any time of year. • There are 12,000 greenhouses in Gaza strip.

  6. Problem of Irrigation In Gaza • Israel cut drinking and irrigation water from Gaza . • Only about one-quarter of potentially irrigable lands are actually irrigated, and not in the most efficient manner. • Bad equipments that used in irrigation.

  7. Fertigation • Fertigationhas been described as the application of plant • nutrients in irrigation water to accomplish fertilization. • Plants require some 17 essential elements in order to grow • healthy and produce economic crops . • Elements: 1- Macro-Nutrients (N, P, K, Ca, Mg) • 2- Micro- Nutrients (Fe, Cu, Mn, Zn)

  8. Problem of Ferigation In Gaza • Random use of fertilizers which waste expensive fertilizers. • Also it has a bad effect on soil. • It reduces quality crop, increase the effects of weed competition, and increase the plant diseases. • All this affects on human health and economy of agricultural sector.

  9. SCADA System • SCADA is an acronym that stands for Supervisory • Control and Data Acquisition. • A computer system for gathering and analyzing real time • data. • SCADA is often referred to • as Human-Machine Interface • (HMI) software.

  10. SCADA System Component Continue..

  11. Communication bus Control bus Field bus Remote Station Sensors – I/O points server clients SCADA System Component (cont.) hardware

  12. SCADA Applications

  13. SCADA Software

  14. LABVIEW • LabVIEW is an acronym for Laboratory Virtual Instrument Engineering Workbench. • It is a computer software development application created by National Instruments. • The building blocks of the LabVIEW program are • called Virtual Instruments (VI).

  15. LABVIEW (cont.)

  16. LABVIEW DSC Module • DSC: Datalogging and Supervisory Control. • Extends LabVIEW development Environment:- Shared Variables. Logging. Alarming. Event monitoring. System security. Real time and historical data trending. More than 4,000 user interface graphics.

  17. Shared Variable • Feature for sharing data in LabVIEW Applications. • Three Shared Variable types:- • Single-Process:- share data between two locations on the • same VI, or two VIs within the same application. • Network-Published:- share data with networked systems • and uses NI Publish-Subscribe Protocol (NI-PSP). • Time-Triggered:- share data deterministically through • Ethernet between real-time systems.

  18. Alarming • Messages to inform operator about operating and error status • in the process. • Default HiHi, Hi, Lo, LoLo, bad status, and rate of change • alarms.

  19. Logging • Data (alarms & events) is stored in real time streams to • Citadel. • No coding required.

  20. Security • Facilitate the implementation of security for local or • network resources such as LabVIEW project libraries, • shared variables, and front panel objects. • The security architecture of the DSC Module separates user • management and authentication from resource permissions. • User management and authentication is provided by the • Domain Account Manager while the permissions assigned • for users to access a resource are defined by the resource • itself.

  21. Security (cont.) • Domain Account Manager • The Domain Account Manager serves as a central repository • for managing local and remote user account management. • Use to create users and user groups, each with different • privilege levels. • This arrangement simplifies the process of assigning • permissions to local and networked LabVIEW resources.

  22. Security (cont.) • Project Library Security • The user can have read/writeandgranting/denying • access to the project library. • Shared Variable Security • Shared variables use the Domain Account Manager • user information to set permissions.

  23. Security (cont.) • Front Panel Security • Uses Domain Account Manager to assign permission • levels to controls and indicators on the front panel. • You can assign 4 permission levels to front panel objects:- • 1. Full Access. • 2. Disabled (View Only). • 3. Disabled & Grayed Out. • 4. No Access (Hidden).

  24. Remote Front panels • View and control the VI front panels remotely from • LabVIEW or from a web browser. • Requires no programming. • Remote clients see “live” front panels updates. • Multiple clients can view the same panel simultaneously. • Only one client can control the front panel at a time.

  25. Remote Front panels (cont.)

  26. E-mail Notification (cont.) • To notify someone or send data by email programmatically. • LabVIEW has several VIs for sending email. • Simple Mail Transfer Protocol (SMTP) is a protocol for • sending e-mail messages between servers. • Most e-mail systems that send mail over the Internet use • SMTP to send messages from one server to another.

  27. E-mail Notification • These VIs have options for sending text-only email, email • with attachments, and email to multiple recipients. • These VIs require the SMTP server's hostname or IP address • that will be used for sending emails.

  28. Hardware

  29. Sensors • Sharp GP2D12 Infrared Sensor • A distance measuring sensor. It has the features of:- • Analog output. • Effective Range: 10 to 80 cm. • LED pulse cycle duration: 32 ms. • Detection area diameter @ 80 cm: 6 cm

  30. Sensors • Temperature Sensor LM35 • An integrated circuit sensor that can be used to measure temperature. • It measures temperature more accurately than a using a thermistor and thermocouples . • Temperature ( oC) = Vout * (100 oC/V)

  31. Sensors • Light Dependent Resistors LDR • A device used in light-measuring or light-sensing. • has a resistancedecreases as illumination increases. • LDRs have a resistance in total:- • indarkness of 1 MΩ. • in bright light (1) 10 - 20kΩ@ 10 lux. • (2) 2 - 4k Ω@ 100 lux.

  32. Sensors • Humidity Sensor • A simple sensor which measures humidity of the weather.

  33. Hardware (Cont.) • Moisture Scale • It is the device that measures the average moisture of the soil. • It consists of:- 1. source of constant voltage • 2. constant resistance • 3. variable resistance (soil).

  34. Hardware • Valves • The valve need 220V AC source to work. • Pump • The pump we use works at 12V DC.

  35. Data Acquisition Card • Data acquisition is the process of gathering information from analog and digital measurement sources such as sensors. • Use DAQ 6024E from NI. • 16 channels of analog input. • 2 channels of analog output. • 68-pin connector . • 8 lines of digital I/O.

  36. Analog Signals • We have 5 analog signals as show below:-

  37. Digital Signals • We have used 4 digital signals as show below:-

  38. Software

  39. Future Work • Sending SMS in addition to emails when an alarm happens. • The designed system is a ON-OF system but can very • well be extended to a PID system. • Using more developed devices such us PLCs.

  40. Conclusion • We build an automated greenhouse using LabVIEW DSC module 8.0. • LabVIEW 8.0 introduces HMI tool with an attractive user interface • so entire greenhouse operation will be monitored. • The system supervise and control the irrigation, fertigation, • temperatures, and humidity levels for optimum plant growth. • The system is provided by an alarm and datalogging system. • So SCADA is a modern technology which saves time and money • by eliminating the need for service personnel to visit each site for • inspection.

  41. Have a nice crop!

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