Automated Irrigation System

Transcription

1 Automated Irrigation System Team Leader MARYAM AL KAABI Team Leader DR.ALI ALHUMAIRI

2 Contents Section 1: Refined Project Description The problem addressed specifically in this project Project scope and expected outcome... 2 Section 2: Refined Project Plan Detailed schedule and milestones Team structure and detailed roles/responsibilities of each membe Contingency and risk mitigation plan... 5 Section 3: System Requirements... 5 a) Requirement process... 5 Easy to implement... 6 Open source... 6 Strength... 6 Quality... 6 Modifiability... 6 b) List and categorization of system stakeholders, users, and clients System Requirements List:... 7 a) Functional requirements... 7 b) Non-functional requirements... 8 Section 4: System Design High level system architecture, data flows User interface Section 5: System Implementation Hardware and Software platforms Hardware platforms: Software platforms: Hardware and Software tools Section 6: Challenges References... 19

3 Section 1: Refined Project Description 1.1. The problem addressed specifically in this project The economy of many countries depends on agriculture. To achieve the best quality, it is important to focus on some characteristics such as the appropriate amount water supply and a suitable schedule for irrigation of crops should be taken into consideration. Farmers around the world face problems in meeting these standards, especially those living in poverty. And with continued lack of efforts and delaying irrigation cause their crops cannot grow, so it leads to problems. This is because of a lack of knowledge economic of methods and technologies. There are different methods of irrigation such as drip irrigation, sprinkler and others but still there is problems such as when there is broken the water will leak out. The agricultural sector has great importance so it is necessary to solve all these problems by developing an intelligent irrigation system Project scope and expected outcome The main objective of this project is to develop an intelligent system that solves most problems related to irrigation and agriculture such as controlling and saving both the water and electricity, Increasing agricultural production using small quantities of water, Minimize manual intervention in watering operations with increasing watering speed, Preserving plants from fungi, and finally, easy to use. All these features make these methods sustainable option to be considered to improve the agriculture and irrigation efficiency. After the implementation of this project it is expected to achieve several goals: Reduce the water consumption. Facilitate and simplify the irrigation system by installing and designing the whole automatic irrigation system. Increase agricultural production through timely irrigation according to the need of the plant. It can prevent irrigation happening on the day at the wrong time, to switch engine ON or OFF by utilizing the irrigation system, the controller will work to switch the engine, so no need for employers. To reduce mistakes of operation due to employees as much as possible and to preserve water from waste.

4 This prototype will be designed to operate for solving the problems of irrigation such as errors caused by farmers and the consumption of massive quantities of water. These errors affect trees as their fungi cause also affect the overall stock of water. Furthermore, it will operate to rise the economic return of countries due to decrease the number of employees in field of agricultures. Section 2: Refined Project Plan 2.1. Detailed schedule and milestones Milestones: 1. First of all we have discussed the main idea of the project, we had several meeting and each member discussed her/his idea. 2. Second we made list of materials needed for this project. 3. After agreeing on the idea and method of action we divided the team into two group searching. One group responsible for searching about related works and other group responsible for materials searching and where can we find it etc. 4. Several Meeting have arranged to draw project sketch and make assumptions of measurements and connections. 5. Then we decided to make small version of the project until we make order for all materials needed. 6. Later we start working on hardware part and make all wires connection for each device. 7. Later on we started on programming part where we programmed and test all sensors individuals. 8. Then we combined all programming code together for the large scale project. 9. We make test for the entire project to make sure everything working as we want using different condition for each sensors. 10. Then we divided the team into two groups, one for writing report and other one for working and searching for software part which is mobile application and programming.

5 11. After that we meet all together to discuss what is needed to design mobile application to control this project and the aim of this mobile application. 12. We spent some time searching for different tutorials for mobile application and what is suitable for this project Team structure and detailed roles/responsibilities of each member Figure 1: Timeline Team member Maryam Budoor All color

6 2.3. Contingency and risk mitigation plan Risks No water in pump No electricity Battery damaged No Sun lights Leak in pipes Inaccurate sensor reading Pump damaged No water in tank Contingency Plan By using mobile application will know if the system is working or not. Use different tools to Use another tool to control the water pump Use solar power Use the backup battery Use the Batteries Replace pipes by using other type of sensor without pipes connection, X-Bee Use another type of sensors or connect the system with more sensors if there is problem in one system directly works with other one Use tools to send notification by phone about the problem System will directly send SMS to user Section 3: System Requirements a) Requirement process We make analysis of the system requirement based on different factors which are : 1. Easy to implement 2. Open source 3. Strength 4. Quality 5. Modifiability

7 6. Automated and complete Easy to implement The materials required for this project must be easy to install to implement a successful project. In addition, materials should be easy to connect with each other to build this project and become more effective. Also, the materials of this project must be easy to replace it in case of any damage. Open source The controller used for this project is open-source, so the used hardware is reasonably priced and has a free development software. Strength The tools needed for this project must be strong to operate for a long period of time to achieve the desired success. In addition to achieve one of the important goals required to save money. Quality The tools required to build this project must be of excellent quality to operate for a long time. Selecting quality materials is very important to avoid wasting money and to avoid the technical problems of these devices and disturbance of the process. Excellent quality is required for this project to achieve the desired success of this project. Modifiability The material should be chosen based on its ease of modifiability, as its common to come across designs and connections. Also, to be easy to replace or modification required in the future.

8 b) List and categorization of system stakeholders, users, and clients. This system is designed for the purpose of solving different problems related to irrigation process, so this system mainly target ministry of Agriculture and fisheries as well as farmers and even those people who has garden in their land. For each problem in different fields, we need to study the conditions, requirements then adapt this project to solve the problem. We can implement this project in different sectors for example it can be like government water supplying system: in this project we used 9 blocks, these blocks can be like houses. Also it can be implemented in big industry that is using water for cooling system, it can be implemented by using water level sensor instead of the moisture sensor. Also we can use this system (same idea) but using different type of sensors for example in fertilizer processes for plants: if we use sensors which tell us about the minerals that are deficient in the soil such as magnesium. And it can be implemented also in process of Spraying of pesticides System Requirements List: a) Functional requirements This system works through different stages: 1. If the moister sensor is dry in the line (its locations), the system will checked by the rain sensor if there is rain the system will not work because no need to irrigate at the same time of rain, otherwise the system will check the temperature sensor with light sensor if the temperature is high and the percentage of light Is high as well then the system will not work because it is not the right time for irrigation process because the water will easily evaporate. 2. If the temperature is low and the light is low and there is no rain but the moisture sensor is dry then it send signal to controller to open the valve and pump. 3. If the level of water in the tank is low then the system will shut down automatically and send SMS to user, by using water level sensor. 4. When the system is ON by using flow meter sensor connected to LCD we can know the amount of water goes from tank to each line so if there is leak in the pipe we can know from LCD.

9 b) Non-functional requirements Communication: Bluetooth connected to system and real time clock to take all data from prototype to mobile application. Accuracy: the reading of all data should be in details because it will be saved in SD card for analysis and research. Performance: The system must work at real time Operational: this system is work automatically and it is connected to mobile application so user must download the application on their mobile to control their system. Cost: the cost of this system must be not too expensive because we aim to decrease the worker which mean decrease the amount of money in irrigation process and solve the main problem (reduce the water consumption) at the same time. Section 4: System Design 4.1. High level system architecture, data flows. As it is shows in (Figure 2), At the beginning a drawing plan has been designed as appeared in the figure2 to begin with step to choose the parts, measurements and sizes required for planning of the project Two wood tables (1.6meter x 1.6 meter) have been chosen as the spine and the stand for this project. Figure 2: Map system design, Top view, Side View

10 Flow Chart of Hardware Implementation As its shows in (Figure3), flow chart of hardware implementation of the project. It illustrate the scenario of the system. The project was divided into 3 Fields (A, B, C) as it is shows in (figure 6). Each Field has specific number of valve, Flowmeter and Sensors. For example each Field has one valve, one Flowmeter and three sensors. The main Intel line has (valve, Flowmeter ) The main purpose for using Flowmeter is to major the amount of water pass in each line as well as the amount of water goes from tank which easily help to know if there is leak in the system. If Light sensor activate, then it depends to temperature sensor for example if temperature is greater than 40 C the system will automatically turn OFF, because it is not the right time for irrigation the heat of the sun works to evaporate the water. This system will also help to choose the right time for the irrigation process and schedule it. In case of rain weather, the system will stop completely because the purpose of this system is smart water-conserving and the appropriate amount of irrigation. So, the rain sensor program has been configured to achieve this goal. Moreover, if the level of the water in tank is low then the system will stop to protect the pump. Two begin the process, two or three moisture sensors of field must be activated to continue to the next step. In the next step, the rain sensor must be dry to reach the next sequence. The next step will continue to next arrangement in the event that the light sensor is activated at day time and on the off chance that the c temperature is less than 40 C it will enable the process to go to next step. In this step, if the water tank level is healthy as per craved level, pump will run, valve will open, and flow meter have a flow reading. On the other hand, if light sensor is not activated because of there is no light it will by bus the sequence of the temperature to the step of the tank level. If water level is at a desired level, it will run the system.

11 Figure 3 : Flow chart of hardware implementation

12 Flow Chart of Software Implementation As it shows in Figure4, The scenario of application start from install the app on phone then open application, First of all the main screen of the app will be loaded then the user will choose which device is connected to Bluetooth. The system will check if the device is connected if it is connected then it notify the user that the device is connected otherwise notify the user device is not connected. In the main screen the user can directly switch ON /OFF the entire system. Moreover, If Details Button pressed it loads to details screen. In this Screen user will able to see all details related to whole system For example if he pressed on plant1 button he will be able to see ( amount of water, Soil moisture, Temperature) if there is problem only in this line he can switch ON /OFF line so he is able in this page to control line by line. Figure 4: Flow chart of Software implementation

13 4.1. User interface Figure 5 : Interface 1- Responsive button. When it is clicked, it takes user to About Page, which shows information about the app and developers. 2- Responsive button. When it is clicked, it takes user to HelpUs Page, which shows information about the app and developers. 3- ListPicker. When it is clicked, it opens a list of all paired Bluetooth devices When a Bluetooth device is clicked, the app attempts and connects to the device. 4- Displays connection status. When connection is established, the text turns green for feedback and familiarity and says Connected.

14 5- ON /OFF buttons allow user to switch on or off the system. 6- Details button. When clicked take user to details page which shows all the information and let user control system line by line. Section 5: System Implementation 5.1. Hardware and Software platforms Control device Field Structure Field LCD, sensors and controller prototype Figure 6 : Steps of the project Testing Hardware platforms: Arduino: Arduino is an open-source electronics platform based on easy-to-use hardware and software. It is a board that can be controlled by sending a set of instructions to microcontroller on it. It can be programmed by Arduino C, which is a programming language based on C and C++ [1].

15 Arduino LCD : Liquid Crystal Library This library permits an Arduino board to control Liquid Crystal Display (LCD) that is based on the Hitachi HD44780 (or a congruous) chipset, which is found on most text-based LCDs. [2]. Bluetooth device: HC 05/06 works on serial communication. The android application is planned sending serial information to the Bluetooth module when certain button is squeezed. The Bluetooth module at other conclusion get the information and send to Arduino through the TX(Operate to transfer the signal from Arduino ) stick of Bluetooth module RX(Operates to receive the signal to Arduino ) The Code bolstered to Arduino check the gotten information and compares. If gotten information is 1 the Driven turns on turns OFF when gotten information is 0 [3]. SD card: The SD library permits for perusing from and composing to SD cards, e.g. on the Arduino Ethernet Shield. The communication between the microcontroller and the SD card uses SPI, which takes place on digital pins 11, 12, and 13 (on most Arduino boards) or 50, 51, and 52 (Arduino Mega). Additionally, another pin must be used to select the SD card [4]. Software platforms: App Inventor: There are different IDE s that permit a versatile application to be modified. For this venture, we chose to utilize the Massachusetts Established of Technology s (MIT) App Innovator, which is a web-based IDE that permits clients to make android apps on a browser. App Creator was created by MIT

16 in participation with Google to supply an environment where applications can be created with ease, permitting clients to move from being customers of innovation to getting to be makers of it [5 ] Hardware and Software tools Arduino Arduino is an open-source gadgets stage based on easy-to-use equipment and computer program. Arduino sheets are able to examined inputs - light on a sensor, a finger on a button, or a Twitter message - and turn it into an yield - actuating an engine, turning on an Driven, distributing something online. You can tell your board what to do by sending a set of enlightening to the microcontroller on the board. To do so you utilize the Arduino programming dialect (based on Wiring), and the Arduino Computer program (IDE), on Processing and other open-source software. [ 6]. Breadboard Definition A lean plastic board utilized to hold electronic portions (transistors, resistors, chips, etc.) that are wired together. Utilized to make models of electronic circuits, the sheets can be reused for future occupations. Breadboards can moreover be utilized to make stand-out frameworks, but trade things set printed circuit sheets are commonly significantly vigorous and can handle more frequencies.

17 Moisture Sensor The soil moisture sensor comprises of two tests that are utilized to degree the volumetric substance of water. The two tests permit the current to pass through the soil, which gives the resistance esteem to degree the dampness esteem. When there is water, the soil will conduct more power, which implies that there will be less resistance. Dry soil conducts power ineffectively, so when there is less water, at that point the soil will conduct less power, which implies that there will be more resistance [7]. Temperature Sensor A temperature sensor is precisely what it sounds like a sensor utilized to degree surrounding temperature. This specific sensor has three pins a positive, a ground, and a flag. This is a straight temperature sensor. A alter in temperature of one degree centigrade is rise to alter of 10 millivolts at the sensor output. The TMP36 sensor has an ostensible 750 mv at 25 C (around room temperature). In this circuit, you ll learn how to coordinated the temperature sensor with your RedBoard or Arduino Uno R3, and utilize the Arduino IDE s serial screen to show the temperature [8]. Light Sensor A Light Sensor is a gadget that recognizes light. It creates a yield flag that is corresponding to the escalated of light. A light sensor measures the brilliant vitality display in the wide run of frequencies in the light range. A few of the common frequencies are infrared, obvious and bright [9].

18 Plastic Water Solenoid Valve Is to control the flow of fluid, valve is ordinarily closed and has a 1/2 non-taped outlets on each conclusion. On the off chance that 12V is connected through the two terminals of valve the solenoid will open the valve. Level Sensor Water-level pointer is utilized to demonstrate the level of water in overhead tank, by utilizing this we can maintain a strategic distance from the flood of water,and at any time we can know the level of water in tank, it has a basic circuit [10]. Software I used App inventor to develop mobile application to control the system from the far distance. Section 6: Challenges Many problems were faced, Such as the tables used to be a base of this project size was bigger than the needed size for this prototype. Also, the materials that required for this project has been difficult to find. Selection of the suitable plant plate to fix it in the foam and artificial grass has significant problem. Also, since more than 10 devices were connected to the Arduino, wires connection have been complexes to connect. Furthermore, the batteries of this project drain quickly in use, Sequence of system scenario has been not easy to decide to function. The controllers to the Arduino were quite challenging, because of a single mistake can damage any electrical part. It was

19 not easy to write the software for the Smart Irrigation System and upload it in Arduino to run the water pump and opening valves with eighteen sensors, but with the help of Arduino library the program was completed with perfect results. Connecting the wires from 20 devices to the Arduino was very difficult and complex, but by using the plastic breadboard was to facilitate the connection of these wires.

20 References [1]Dr. Al Humairi, A. (2016). Introduction to Arduino. Embedded Systems Course Material. [2] Arduino.cc. (2018). Arduino - LiquidCrystal: [3] Arduino Project Hub. (2018). Arduino Bluetooth Basic Tutorial: [4] Arduino.cc. (2018). Arduino SD [5] Psomas, S. (2007). The Five Competencies of User Experience Design :: UXmatters. Uxmatters.com. Retrieved 16 May 2017, from [6] Arduino.cc. (2018). Arduino Introduction: [7] Instructables.com. (2018). Arduino Soil Moisture Sensor: [8] (White), B., Pack), J., TMP36, T., SMD, A. and Arduino, S. (2018). SIK Experiment Guide for Arduino - V3.2 - learn.sparkfun.com. [online] Learn.sparkfun.com.: reading-a-temperature-sensor.

21 [9] Electronics Hub. (2018). Arduino Light Sensor: [10] Instructables.com. (2018). WATER LEVEL INDICATOR USING ARDUINO: