Project Carna Concept Review

Transcription

1 Project Carna Concept Review Team Carna [P825] View Project Summary 1

2 CARNA Customer Needs 2

3 CARNA Target Specifications 3

4 [WET] CARNA System Diagram [DRY] Junct. Box Electrical Conduit Junct. Box MUX DAQ Control Mock Circulation Loops Sensors/ Actuators Control x1 Barrier Out to Dry Systems LUI Health Monitor Data Center Tank Sensors/ Actuators Power Plant Wet Dock 4

5 Ten vs. One Single Large Tank with Ten Modular Loops Ten Small Modular Tanks and Loop Design Cost Reliability Complexity Redundant Total

6 One Tank System Single Tank with Ten Mock Loop Modules Tanks Cost Machine Corrosive Total Plastic Composite Double Walled - + Metal

7 Loop Redundancy and Modular Sensor Replacement Modular Sensor Bricks with Bypass Redundancy 7

8 Tank System and Modular Loop 8

9 Heat, Cooling, and Disinfection Heat Power Cost Ease of Implementation Total Immersion Heater Tankless Heater Heat Pump - -1 Computer Waste Heat Cooling Power Cost Ease of Implementation Response Time Control Total Heat Tubes Air Heat Ex Water Hat Ex - + Heat Pup Refrigerant Convection Saline in Cues Disinfection Power Cost Ease of Implementation Maintain Effect Total UV-C Chlorine Generator Chlorine/Bleach Disinfect Tubes Filter Do Nothing Sucker Fish

10 Transducers Level Sensors Power Cost Ease of Implementation Maintain Effect Response Time Total Electro-Optic Continuous Level Infrared Floating Mechanical Device Flow Sensors Power Cost Ease of Implementation Maintain Effect Response Time Total Boolean Volumetric Combination with Temp Pressure Sensors Power Cost Ease of Implementation Maintain Effect Response Time Total Pressure Transmitter Pressure Sensor Pressure Sensor with Display Pressure Transducer Salinity Sensors Power Cost Ease of Implementation Maintain Effect Response Time Total Probe Refractometer Temperature Sensors Power Cost Ease of Implementation Maintain Effect Response Time Total Combination with Pressure Thermocouple Probes Basic Thermocouple Thermistor

11 Heat Transfer through Pipe 11

12 Heat Transfer through Pipe Heat Transfer Through Pipe [Excel] 12

13 Tank Head Loss Pressure loss, tank to pump Head (in) Flow Rate (L/min) Pipe Dia (in) Head Loss Analysis [Excel] 13

14 Heat Transfer of Tank Tank Template [Excel] 14

15 Flow and Pressure Control What is needed? Pressure control at the inlet and outlet of the LVAD What are the specs? Inlet: -2 to 5 mmhg (-.39 to.97 psi) Outlet: to 15 mmhg ( to 2.9 psi) What are the options? Valve/Restrict. Type Power Req d $ Variability (x2) size Total Ball Throttle + - Solenoid Needle Orifice/Restrictor Pinch Gate

16 Flow and Pressure Control Valve Control Power $ Ease of Integration Ease of Use Precision Consistency Step Size Total Manual Pneumatic Actuation Electric Actuation -Separate -Packaged What is the proposed solution? Integrate a ball valve before and after the LVAD, to be controlled by DC servo motors. A worm drive will also be implemented, and a sensor to aid in validating the valve position. LVAD Flow From Tank Flow Control Diagram 16

17 Flow and Pressure Control Ball Valves: Easy to operate Can maintain & regulate flow High volume High temp High pressure Corrosion resistance (Brass/Bronze) Full Port (Unrestricted Flow) Flow through the valve = valve pipe size Ball Valve Schematic (mcmastercarr.com) 17

18 Flow and Pressure Control Worm Drives: Increased torque at a decreased speed Ideal for small electric motors (high-speed/low-torque) Can be self-locking (non reversible direction of transmission) Worm Drive System (mcmastercarr.com) How will it be implemented? The handle of the ball valve will be removed and the stem of the valve will be integrated into a worm drive system, powered by the electric motor. There will be a sensor (to be determined) put into place in order to validate the valve position. 18

19 CARNA [Dry]: Parallel redundant PCs 1BaseT Internal Network DAQ 1 (PC) Breakout Box DAQ 2 (PC) Breakout Box Health Network Control Network Data Management Center LUI Health Network Multiplexer Multiplexer Health Monitor 19 System Signals Line from [Wet] CARNA and Pumps

20 DAQ and Wiring DAQ Cost Ease of Implementation Reliability Power Scalable Total Redundant PCs, non-multiplexed Redundant PCs, multiplexed NI embedded Custom Hardware Test Equipment (oscilloscopes) Redundant NI embedded Wiring Cost Form Factor Noise Rejection Total Single Strand + - Twisted Pair Coaxial

21 Health Monitor Phone on A Chip Cellular Network MCU Health Network Function: Communicate with main subsystems. Get health status. Periodically ship data to the Server for long-term storage. The ability to voice-call/sms and through cellular network. Health Monitor Platform Cost Ease of Implementation Reliability Power Total Microcontroller PC External Communication Cost Ease of Implementation Reliability Power Total VOIP Phone on a chip + 1 TCP/IP/SMTP + - Health Network Protocol Cost Ease of Implementation Reliability Power Total CAN bus + 1 I2C + - RS Monitoring Approach Cost Ease of Implementation Reliability Power Total Polling ADC

22 Health Monitor Network RS232 Design Concept Loop 1 Controller Loop 2 Controller Loop 3 Controller TX RX TX RX TX RX 4 RX TX Health Monitor Digital I/O 4 TX RX Loop 4 Controller TX RX DAQ 2 Line drivers/level shifters are omitted from the diagram. 22

23 Power Plant (Single Fault Tolerant Switch) main power auxiliary power A.T.S. (Automatic Transition Switch) Quality Surge Suppression Manuel by-pass Energy Storage 1 Energy Storage 2 Create requested output voltages Create requested output voltages Fault Tolerant Switching V 1A V 1B V 1A V 1B Manuel by-pass V AC,1 V AC,2 Off the shelf UPS 23

24 Power Plant Off the Shelf Industrial Supply Concept Main Aux Auto Transfer Switch Surge Suppression DC Power Supply Battery Backup Module Redundancy Module Batteries DC DC Power Supply Battery Backup Module Redundancy Module Batteries UPS AC1 UPS AC2 24

25 Power Plant Power Plant Cost Ease of Implementation Reliability Maintanence Total Industrial DC supplies Benchtop DC supplies + 1 Lead acid batteries Li-Ion Batteries - + Flywheel Off-the-shelf UPS Diode paralleling + 1 Fault tolerant switching

26 Data Management Center DAQ 1 DAQ 2 Internal Network Switch 1/1/1 Base-T Who is Master DAQ? Loop and Tank Parameters Accessible From LUI LUI Send Master Data Only?? Organize Data Linux OS WEB Server SFTP SMTP Firewall World-Access Control Network RS232 Redundant Storage Array SSH Health Network RS232 26

27 Data Management Center Data Storage Manager Cost Ease of Implementation Reliability Power Total PC + + Embedded + -1 Operating System Cost Ease of Implementation Reliability Power Total Linux Windows _ + _ -1 Labview RT OS _ + Storage Medium Cost Ease of Implementation Reliability Power Total IDE SATA + 1 Solid State _ Punch Cards + _ + 1 LUI Cost Ease of Implementation Reliability Power Total Touchscreen Keyboard/mouse/monitor LUI Platform Cost Ease of Implementation Reliability Power Total Embedded + -1 PC + + _ 1 27

28 Flow Loop Controller AI Temperature X4 AI Pressure X4 AI Flow Rate X4 MCU w/ ADC, PWMout, And 2 Serial Ports Digital Output X1 [Shut off Valves] PWM Output X4 [Actuators] Health Network Control Network Loop Controller Cost Ease of Implementation Reliability Power Total Single Controller (control all ten loops) One per loop + 1 Two per loop Parallel Redundant + 1 Platform Cost Ease of Implementation Reliability Power Total PC Embedded

29 Parallel Redundant Flow Loop Controllers All input signals will be shared between the two MCU s. They will handshake With each other and with the Health Monitor. Only one MCU will be allowed to actuate the System at any given moment. The other will remain in sleep mode Until it is required to function. (i.e. if the first MCU fails). Handshaking MCU w/ ADC, PWMout, And 3 Serial Ports MCU w/ ADC, PWMout, And 3 Serial Ports Health Network Control Network Health Network Control Network 29

30 Pump Simulator HE 1 HE 2 HE 3 Differenced HE 1 HE 4 Differenced HE 2 LVADR2-Simulator (Microcontroller or PC NI/Labview) HE 5 HE 6 HE 7 HE 8 AMB 1 DAC Array Differenced HE 3 Differenced HE 4 AMB 1 AMB 2 AMB 2 Motor Speed Motor Speed CARNA GRND 5V Digital Signals Analog Voltages 3

31 Local User Interface Six Principles of Heuristic Evaluation PRINCIPLES (Offers more specific direction than the more general set of rules when it comes to problem resolution) 1. Visibility Keeping all needed options and materials for a given task visible without distracting the user with extraneous or redundant information 2. Feedback Keeping users informed of actions or interpretations, changes of state or condition, and errors or exceptions that are relevant and of interest to the user through clear, concise and unambiguous language familiar to users 3. Structure Organize the user interface purposefully, in meaningful and useful ways based on clear, consistent models that are apparent and recognizable to users. 31

32 Local User Interface Six Principles of Heuristic Evaluation (Cont.) 4. Reuse Systems should use language and structure in a consistent fashion Identical terminology should be used for - Prompts - Menu - Help screens 5. Tolerance Reducing the cost of mistakes and misuse by allowing, undoing and redoing while also preventing errors 6. Simplicity Make simple, common tasks simple to do, communicating clearly and simply in the users own language 32

33 Local User Interface Start Panel 33

34 Local User Interface 34

35 Local User Interface 35

36 Local User Interface 36

37 Local User Interface 37

38 Local User Interface 38

39 Local User Interface 39

40 Local User Interface Emergency Situations In Emergency Situations, the User Interface screen will go RED (also a auditory alert sound of 4-7 dba) and immediately goes to the maintenance program with a full and complete description of the problem. Secondary system will also activate when the emergency situation arises until the maintenance engineer arrives and deals with the problem. The maintenance engineer will have immediate access to all of the UI and have an full and descriptive procedure on screen to fix the problem. 4