【導(dǎo)讀】1/97. AcademicYear:(2020/2020). Fullname:SijunWu. WaterTank. Date:April2020. 2/97. Student:SijunWu. ID:12020664. Date:April2020. UniversityofGlaman. 3/97. Declaration. this.Signature:Date:. 4/97. Abstract. receivegoodeffect.5/97. Acknowledgement

　　

【正文】 A/D and D/A, PWM, digital I/O, etc, and also provides LCD display output. Compared with the traditional frontend controller, work controller has higher speed and larger addressing capability, coupled with multitasking and realtime embedded operating system it can pletely guarantee the smooth running of plex control algorithms. Figure4. NetController [4] Network visual control configuration software (NetConLink) is based on Matlab/Simulink and it can achieve seamless and SIMULINK bined. Firstly Users can use various modules and customization of the S function system function, which is providing by Simulink. Secondly using graphical way to create model of controller and controlled object. Then control strategy is tested many times for the whole control system of the offline and online in order to verify the feasibility. After that code is generated and automatically can be downloaded into NetController by NetConLink in a few seconds. NetConLink provides hardware driver module and work control toolbox, and provide the interface for NetConTop. 19 / 97 Figure5. Interface of NetConLink [4] NetConTop Network visual monitoring configuration software (NetConTop) is based on Windows operating system and it is used to generate puting graphical monitoring program configuration software development platform. It provides a plete program of solving engineering monitoring problems. Users can easily design visual monitor interface. It offers a variety of standard configuration control, such as the graph, instrument, the input box, and support the client/server architecture. Its main functions include: NetCon controller realtime data acquisition and management, realtime monitoring, missioning and management. Figure6. User Interface of NetConTop software [4] 20 / 97 Chapter3. Hardware Introduction Coupledtank system description The Coupledtank plant module is consisting by a pump with a water basin and two tanks. As shown in Figure 7. The two tanks are fixed on the panel. A gear pump is installed at the bottom of the panel. The pump can thrusts the water from the water reservoir, which is under the Coupletanks, through the hose afflux into the upper tank, such that flow from the upper tank can drain through an outlet orifice, which is located at the bottom of the upper tank, into the lower tank. Flow from the lower tank flows into the main water reservoir. In each one of the two tanks, liquid is withdrawn from the bottom through an outflow orifice. The out let pressure is atmospheric. In order to introduce a disturbance flow the upper tank is also equipped with a drain tap so that when open, flow can be drain directly into the water reservoir. For each waters tank we can see a staff gauge attach beside the tank to display the real time water level. Two pressure sensors are installed on the bottom of each water tanks in order to monitor Realtime water level and give feedback signal. Figure7. Coupledtank Model [1] 21 / 97 Component nomenclature 1. CoupledTank Over Frame 2. Upper Tank 3. Lower Tank 4. Main Water Basin 5. Pump 6. Flexible Tubing 7. QuickConnect Inlet Orifice Out1 8. QuickConnect Inlet Orifice Out2 9. QuickConnect Out1 Coupling And Hose 10. QuickConnect Out2 Coupling And Hose 11. Small Outlet Insert 12. Medium Outlet Insert 13. Large Outlet Insert 14. Plain Outlet Insert 15. Disturbance Tap 16. Flow Splitter 17. Pressure Sensor 18. Calibration And Signal Conditioning Circuit Board 19. Pump Motor 4Pin DIN Connector 20. Pressure Sensor Cable 6PinMini DIN Connector 21. Tank Level Scale Figure8. Coupledtank Component [1] 22 / 97 ponent description Overall frame and water tanks The coupledtank overall frame and water tanks are made of Plexiglas. The water tanks have uniform cross section. [1] Description Value Unit Overall frame height m Overall frame width m Overall frame depth m Form 1 Pump The Coupledtank pump is a gear pump posed of a 12 Volt DC motor with heat radiating fins. [1] Pressure sensor Two pressure sensors are installed on the bottom of each water tanks in order to monitor Realtime water level. The sensor output voltage increases proportionally to the applied pressure. Its out measurement is processed through a Signal Conditioning Board and made available as 0 to 5V DC signal. Coupledtank model parameters Symbol Description Value Unit Kp Pump Flow Constant /S/V Vp_max Pump Maximum Continuous Voltage 12 v 23 / 97 Vp_peak Pump Peak Voltage 22 v D out1 ―Out 1‖ Orifice Diameter cm D out2 ―Out 2‖ Orifice Diameter cm L1_max Tank 1 Height 30 cm Dt1 Tank 1 Inside Diameter cm KL1 Tank 1 Water Level Sensor Sensitivity cm/V L2_max Tank 2 Height 30 cm Dt2 Tank 2 Inside Diameter cm KL2 Tank 2 Water Level Sensor Sensitivity cm/V V bias Tank1 And Tank 2 Pressure Sensor Power Bias 177。 12 V P range Tank1 And Tank 2 Pressure Range KPa D so Small Outflow Orifice Diameter cm D mo Medium Outflow Orifice Diameter cm D lo Large Outflow Orifice Diameter cm g Gravitational Constant On Earth cm/ Form 2 [1] 24 / 97 Operating Conditions: Operating environment: Laboratory environment Storage temperature range: –5176。C to +45176。C (packed) Operating temperature range: +5176。C to +40176。C Operating relative humidity range: 80% at temperatures 31176。C decreasing linearly to 50% at 40176。C Sound Levels: Less than 75 dB (A) 25 / 97 Chapter4. Theory and mathematical model Mathematical model When we research a controlled object, firstly we usually create a m