Discussion- Multipurpose Onboard Computers: Monitoring and Control of Onboard Systems

Discussion in 'OnBoard Electronics & Controls' started by TerryKing, Nov 7, 2007.

  1. TerryKing
    Joined: Feb 2007
    Posts: 595
    Likes: 25, Points: 28, Legacy Rep: 289
    Location: Topsham, Vermont

    TerryKing On The Water SOON

    Note: This thread is a branch from the ongoing "Discussion- Multipurpose Onboard Computers" Please comment, add, critique etc.!!

    THIS MAY INCLUDE MONITORING AND CONTROL OF THESE ONBOARD SYSTEMS:
    • Propulsion and steering systems
    • Sail Rigging Monitoring and Control
    • Onboard power systems
    • Consumeables / Tank Levels
    • Heating/cooling
    • Lighting
    • Water/sanitation systems
    • Environmental and weather instruments
    • Safety/Security Monitoring: Intrusion, Bilge Flooding, Heat/Fire, Dangerous Gases, Anchor Drag

    CHALLENGES:
    • DEVICES: Simple, Reliable onboard system monitoring and control devices
    • SENSORS: Interface to wide variety of sensors for: Engine, Power Systems, Tanks, Heating-Cooling, Weather, Environment, Gases, Safety etc.
    • INTEROPERABLE: With industry-standard NMEA devices
    • CONTROLS: Effective, affordable controls and switches for onboard systems, lights, etc.
    • AVAILABILITY: Reliable in heat, vibration, voltage variations, (possibly Lightning)

    IDEAS AND DIRECTIONS:

    • MONITORING DEVICES: Use Industry Standard (ex: CruzPro) Engine and Power Monitoring devices with NMEA0183 outputs, or Microcomputer-based DIY or Custom devices.
    • NMEA COMBINERS (MULTIPLEXERS): Industry Standard or DIY/Custom devices. Monitoring devices could/should include NMEA Multiplexer capability, of 1 to 4 other devices. A final NMEA Multiplexer should have USB output to computer.
    • NETWORK: (See Network Thread): NMEA0183 (Serial 4800 Baud), may be implemented as Fiber Optic or Wireless link instead of wired.
    • CONTROLS: NMEA controlled "Smart Switches" with on-off, Status, Current measurement, Overcurrent and overvoltage protection, automatic try-again on overcurrent, etc.
    • CONTROLS: Lighting controls for Halogen or LEDs, with dimming, status readback, current measurement capability. Perhaps include human-detect lighting (at least for the head)
     
  2. TerryKing
    Joined: Feb 2007
    Posts: 595
    Likes: 25, Points: 28, Legacy Rep: 289
    Location: Topsham, Vermont

    TerryKing On The Water SOON

    Other Contributors.. please check in!

    Some of the people who contributed to this subject in the past were:

    • TimB: Rigging Loads, "Friend developing Monitoring and Control Units",
    • Hank Rosendale: Systems Monitoring
    • TerryKing: Smart Switches
    • SAE140: Networks, Microcomputers

    This was on a quick look through the thread, not a Hollywood-Legal set of credits, so please don't beat me up if I missed you! Just jump in and comment/suggest/critique.
     
  3. TerryKing
    Joined: Feb 2007
    Posts: 595
    Likes: 25, Points: 28, Legacy Rep: 289
    Location: Topsham, Vermont

    TerryKing On The Water SOON

    Placeholder 1

    temporary
     
  4. TerryKing
    Joined: Feb 2007
    Posts: 595
    Likes: 25, Points: 28, Legacy Rep: 289
    Location: Topsham, Vermont

    TerryKing On The Water SOON

    INFORMATION about MONITORING of onboard systems

    This is a try at a list of the onboard systems that may be MONITORED. Please comment, add, suggest, critique!

    These have outputs that can be read in, displayed, logged, and later retrieved. "Meta-Data" such as averages, Max/Min, trends and graphs can be created and displayed from logged data.

    - Engine Monitors: Commercial or DIY box that senses engine variables:
    • Temperatures: inlet,block,outlet, exhaust riser, turbo, oil, drive system, alternator.
    • Pressures: Oil, Fuel, Coolant, Turbo, Hydraulic pump.
    • Electrical: Alternator current, voltage, EFI supply voltage
    • Vibration: Engine, Drive system

    - Power Monitors: Commercial or DIY box that senses AC and DC Power systems:
    • Voltages and Currents: Batteries, DC Alternator / Generator outputs, Wind/Solar system outputs
    • Voltages and Currents: AC power systems, Shore power, Generators, Inverters. Load current from onboard devices or circuits
    • Status: Loads which are using power. Circuits whose overcurrent protection has tripped. Circuits that are off/disabled.

    - Consumables/Tanks:
    • Fluid levels: Fuel tanks, fresh water tanks, gray and black water tanks

    -Heat/Cooling Monitor:
    • Status of cooling or heating devices
    • Temperatures: cabin/crew/engine room/helm/Refrigerators/Freezers

    -Weather Instruments
    • Wind Direction and Velocity
    • Barometric Pressure
    • Rain Detector
    • Snow Depth (For those wintering-over at Bar Harbor)

    - Environmental Monitor:
    • Air temperature: Outdoor, Cabin/Crew areas, Engine Room,helm
    • Water Temperature: Sea water, fresh water, hot water
    • Lightning Detector

    -Bilge/Pumps Monitor:
    • Each Bilge Area: Water level, Pump Running Status, Pump Current

    -Fire/Gases Monitor:
    • Detect explosive gases, combustion products, CO, fuel vapors, solvents in Engine Room areas and bilges.
    • Detect Gases, CO, combustion products in crew areas
    • Detect overtemperatures in various areas (may be combined with Environmental)
     

  5. TerryKing
    Joined: Feb 2007
    Posts: 595
    Likes: 25, Points: 28, Legacy Rep: 289
    Location: Topsham, Vermont

    TerryKing On The Water SOON

    INFORMATION about CONTROL of onboard systems

    **under construction**
     
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