Attachment_17_ESMF_UOES_for_ESD_User_Manual.pdf

UNCLASSIFIED – FOUO

Environmental and Ship Motion Forecasting (ESMF)

User Operational Evaluation System (UOES) for Expeditionary Transfer Dock (ESD)

User Manual

CDRL A0016

29 November 2019 Document # 3691-001-RPT-0007RI

WARNING - This document contains technical data whose export is restricted by the Arms Export Control Act (Title 22, U.S.C. Sec. 2751 et seq.) or the Export Administration Act of 1979, as amended, Title 50, U.S.C., App 2401, et seq. Violations of these export laws are subject to severe criminal penalties. Disseminate per the provisions of OPNAVINST 5510.161.

DESTRUCTION NOTICE - Classified Information, destroy in accordance with the SECNAV M-5510.36, DON Information Security Program or DoD 5220.22-M, National Industrial Security Program Operating Manual. Controlled Unclassified Information (CUI), (e.g., FOUO, Distribution Statement controlled) destroy by any methods that will prevent disclosure of contents or reconstruction of the document.

DISTRIBUTION STATEMENT D – Distribution authorized to the Department of Defense and U.S. DoD contractors only; (Critical Technology) (30 March 2010). Other U.S. requests shall be referred to COMNAVSEASYSCOM (NSWCCD) and PEO Ships (S&T).

ESMF UOES User Manual UNCLASSIFIED – FOUO ESMF v1.8.0

RECORD OF CHANGES

Revision Number

Revision Date

Description INITIALS

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10/01/2018

02/12/2019

02/25/2019

04/20/2019

04/28/2019

07/05/2019

07/16/2019

10/04/2019

11/26/2019

11/29/2019

Initial DRAFT

Updates

Corrections made with initial user feedback

Updates for v 1.7.0 design upgrades

Incorporated feedback from Capt. Sands

Added Quick S/U and S/D

Added System Information Data Sheet Appendix

Updates for v1.8.0 design upgrades

Updating figures captions and references

Adding CSRM description

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Contents

1 Overview

2 System Description

3 Operating instructions

3.1 Startup

3.2 Normal Operations

3.2.1 Planning

3.2.2 Timing

3.2.3 Data & Trends

3.2.4 Control & Settings

3.3 Shut Down

4 Data Handling Requirements

5 Maintenance and Troubleshooting

6 Personnel Safety

7 Information Assurance Controls

Appendix A QuickStep

A.1 Setup

A.2 Shutdown

Appendix B Frequently Asked Questions

B.1 Why is the ESMF heading different from the ships Gyro?

B.2 Why is the ESMF system unable to display any position?

B.3 Why is the depth displayed in ESMF different from the Fathometer?

B.4 Why does the Ship Motion Sensor pitch/roll differ from my Clinometer?

Appendix C System Information Data Sheet

C.1 ESMF System Information

1 Overview

In cooperation with Office Naval Research (ONR), Program Executive Office Ships (PEO Ships), Naval Sea Systems Command (NAVSEA), and Military Sealift Command (MSC) a User Operational Evaluation System (UOES) was developed for the Environmental Ship Motion Forecasting (ESMF) system for further investigation and evaluation. The ONR ESMF program was conducted in order to develop a capability that could measure, predict, and display the environmental and ship motion parameters needed for operators to safely conduct seabasing operations. ESMF set out to demonstrate accurate ship motion and wave forecasting for time scales of interest (~5 minutes) in up to sea state 5 and ship speeds of up to 10 knots. The initial research and development effort, which concluded in 2017, demonstrated utility for the seabasing application and showed promise for other at-sea operational applications. This document details operation of the ESMF UOES for ESD.

2 System Description

Figure 2-1: ESMF Components and Physical Layout

The major hardware subsystems of the ESMF UOES system are:

User Workstation [Bridge Console] – The User Workstation (UWS) is a ruggedized Intel PC running Windows 10 that provides the main interface for ESMF. Detailed software description is in the following section.

Primary Processing Unit (PPU) – The PPU is a ruggedized Intel PC running Linux Ubuntu 16.04. It performs the core algorithms of ESMF taking in sensor data and providing products to the UWS. The PPU is in the Electronics Locker located in the Bosun’s Storeroom below the forecastle deck.

Coherent On Receive Radar (CORR) – The CORR is the principal ESMF sensor for measuring the oceanic wave field. It is a modified Koden MDS-63R marine navigation radar specialized for ocean surface return. Radar control and signal processing are performed by a dedicated Radar Processing Unit (RPU) consisting of an Intel PC with Windows 10. The CORR is on the foremast and the RPU is also within the Electronics Locker.

Ship Motion Sensor (SMS) – Real-time ship motion is provided to the system by an OXTS RT2502 IMU. The sensor uses accelerometers and gyros in conjunction with dual antenna GPS with L1 carrier-phase differencing. The SMS is located in the Electronics Locker and connects to the PPU via a direct Ethernet connection. GPS antennas are located on the foremast.

Meteorological (MET) Sensor – Real-time environmental data (e.g. wind speed/direction, temperature) is provided to the system by a Gill® MetPak™ II Weather Station via a RS- 422 serial connection to the PPU. The MET sensor is located on the foremast.

Ethernet network switch – The processors are networked using a Dell PowerConnect 2816 16-port, high-performance Gigabit Ethernet switch also located within the Electronics Locker.

The three processor components (PPU, RPU, and UWS) are all Cincoze model DS-1002 high performance, fan-less, expandable computers. Hardware specifications are:

Dimensions: 227mm x 126mm x 261mm, 5.7kg Power: 120W, 12-30VDC Operating Temperature: -10 to 76°C Interface: RS422, Ethernet Processor: Core i7-4770TE Haswell 2.3Ghz Memory: DDR3 1600 SO-DIMM- 16 GB Primary Storage Drive: mSATA SSD - 256 GB Secondary Storage Drive: 2.5" Hard Drive - 2 TB

The interconnectivity of the components and the general physical layout are shown in Figure 2-1.

3 Operating instructions

3.1 Startup

1. Verify breakers are closed and power is available to the ESMF electronics locker via

P111 and the ESMF Bridge console via L109.

2. At the bridge console, turn on power to the display then press and release the momentary power button located just under the console ledge. Login as user ‘esmf’ if prompted for a login.

3. Select the ESMF icon on the Windows Desktop and double click or press enter to start the ESMF Graphical User Interface (GUI). Once the GUI starts, the display should appear as shown in Figure 3-1.

Figure 3-1: Initial Display - General Tab

4. (Refer to Figure 3-2) Find the System Status on the upper-left corner of the display. If the

‘SMS’ indicator is grey and all other indicators are green, then the system is ready to start receiving data. Press the ‘Start’ button.

Figure 3-2: Location of the System Status and ‘Start’ Button on the General Tab

5. It may take the system up to 60 seconds to completely initialize after clicking ‘Start’.

Once the initialization process is complete, the ‘Start’ button will become disabled and replaced with a faded ‘Ready to transmit’ text. Additionally the ‘Planning Source’ and

‘Depth’ settings will become enabled.

6. (Refer to Figure 3-3) The next step is to start the radar. Click Radar-1 on the upper horizontal tabs. Look at the Radar Control section on the right half of the display. The

‘Transmit Power’ should be ‘Off’ because the radar is not transmitting. The ‘Ready

Status’ indicator should indicate green if the radar subsystem is ready to begin transmitting.

Figure 3-3: Location of the ‘Transmit Power’ buttons and ‘Ready Status’ indicator in the Radar Control section of the Radar-1 Tab.

7. Visually verify the radar is clear of any obstructions then click the Transmit Power ‘On’ button. This will energize the unit and begin rotating the antenna.

8. (Refer to Figure 3-4) To verify nominal operation of the radar and RPU, open the Sensor

Scope by pressing the ‘Scope’ button. You will see the text ‘Connecting…’ as it tries to connect to the network. It may take up to 2 minutes for the radar scope to connect.

Figure 3-4: Locate ‘Scope’ Button and the show Radar Scope connecting in the Radar-1 Tab

9. (Refer to Figure 3-5) Once the ‘Connecting...’ text is no longer displayed, the radar scope is connected and should be displaying data. Select ‘SNR’ from the drop-down on the upper-left of the dialog. Reflections in the scope should appear similar to that in Figure

3-5, depending on objects nearby. If the scope is not showing any data (solid grey), the

RPU may not have completed its startup cycle.

Figure 3-5: Locate the ‘SNR’ Button and show the Radar Scope displaying data in the Radar-1 Tab

10. After verification of radar operation, exit the scope window by selecting ‘Close’. The radar scope requires a lot of network bandwidth to function and can impact normal operations if left running. The radar data scope should only be used intermittently and not left operating continuously. Stopping the radar scope will pause updates to this display, but does not stop radar transmissions. The radar and ESMF will continue to function when the scope is stopped. To stop radar transmission the ‘Transmit Power’ must be switched to ‘Off’.

11. ESMF is now in normal operating mode and has begun to collect data. After about three

(3) minutes the ocean wave spectra [2DPS] should become visible on the planning tab and timing forecast should be ready shortly after that.

3.2 Normal Operations

The top of the ESMF display shows overall system status and current forecast at all times. This is shown in Figure 3-6.

Figure 3-6: ESMF Header

Aligned along the left edge of the display, the four function tabs for the ESMF GUI are Planning, Timing, Data & Trends, and Control & Settings. This is shown in Figure 3-7

Planning

The ‘Planning’ tab is used for assessing directional wave energy spectra and impacts on vessel motion.

Timing

The ‘Timing’ tab displays detailed statistics of current ocean conditions, motion forecasts, and timing information related to the current motion forecast.

Data & Trends

The ‘Data & Trends’ tab is used to display measured parameters and their trends.

Control & Settings

The ‘Control & Settings’ tab is used control the radar and other ESMF components. It is also used to load in a buoy file, override the depth, choose a vessel draft, change display settings, and view references. For diagnostic purposes, it can also be used to collect information about how the system is behaving.

Figure 3-7: The four function tabs of ESMF

3.2.1 Planning

The Planning panel is used for assessing directional wave energy spectra and impacts on vessel motion. The wave data is fed to a Course/Speed Recommendation Module (CSRM) which shows expected vessel motions for varying course/speed. The Planning panel shows 6 separate panels by default as shown in Figure 3-8.

Figure 3-8: The Planning panel

Each panel can be independently moved within the tab, maximized to fill the entire tab, or minimized. When a panel is minimized, the other panels will automatically adjust to fill the newly available space.

The 6 panels of the Planning panel are:

Data readout Two-dimensional power spectrum (2DPS) Situational Awareness Course & Speed Recommendation based on Heave Course & Speed Recommendation based on Roll Course & Speed Recommendation based on Pitch

Data Readout

The Data readout panel provides a text summary of the current forecast and some sensor data.

This is shown in Figure 3-9.

Figure 3-9: The Data Readout panel

The readout information displays the following:

The date and time displayed is the current system time, not the time of the current forecast

Position and heading as computed by the ESMF Ship Motion Sensor (SMS) Forecast combined seas and the forecast contributions from wind waves and swell waves updated approximately every 90 seconds to 2 minutes.

Temperature and wind speed and direction from the ESMF meteorological sensor updated every second.

Current ship motion data updated 10x per second.

The ‘Waves’ line describes the Significant Wave Height (SWH). SWH is the “combined seas” describing the total contributions from both wind generated waves and swell waves. The wind and swell contributions are combined as follows:

Where:

w is the wind wave contribution s is the swell wave contribution

The Significant Wave Height, the period and direction associated with the primary wave contributor is what is displayed on the Waves line and in the ESMF banner area.

Situational Awareness

The Situational Awareness panel displays a top-down view of the vessel and surrounding wave field as it moves in real-time. This is displayed in Figure 3-10.

Figure 3-10: The Situational Awareness panel

The horizontal scroll bar at the bottom of the Situational Awareness panel can be used to zoon in and out of the display. The display can also be customized using the buttons on the right side of the panel.

Orient display with True North up

Orient display with ship Bow up

Orient display Bow down

Toggle drawing the wave field background

Toggle drawing own ship track history.

If the system is configured as a connected, multi-ship system, then both ships will be drawn in the center of the display with standard fenders and lines connecting the two ships.

When the Situational Awareness panel is maximized, the data readout information is displayed on the left-hand side of the panel as shown in Figure 3-11.

Figure 3-11: The Situational Awareness panel when maximized

Two Dimensional Power Spectrum (2DPS)

The 2DPS panel displays a 2DPS either calculated from current radar data or from a NOAA forecast spectra obtainable by download from NOAA NCEP. This is displayed in Figure 3-12.

The graph shows the wave energy surrounding the ship. The distance from the center represents the wave period: the outermost edge represents 4 second periods, while the inner ring is 27 seconds. Whereas significant wave height provides an average value for the highest 1/3 of all waves, the 2DPS provides more detail. It shows wave energy from all directions at many different frequencies.

The time displayed in the upper right corner is the time that the last forecast was received. When updating normally with live radar data, the power spectrum attempts to update as often as the system processor can support. The current system should refresh roughly every minute or so.

Figure 3-12: The 2DPS panel

If more than 3 minutes elapses without a fresh forecast, an indicator immediately below the forecast valid time is displayed (view Figure 3-13). The time late indicator will periodically update the forecast age until a new forecast is received. When a new valid forecast is received, the time late indicator is removed automatically.

Figure 3-13: The 2DPS panel with an old time indicator

Spectral Wave Bulletins

The 2DPS display can display forecasts published as spectral wave bulletins. This allows users to easily visualize wave forecasts more than a week in the future. NOAA calculates wave spectra forecasts for several ocean locations several times per day. For instance the Beryl A AWS platform (station 63110) forecast.

(http://polar.ncep.noaa.gov/waves/WEB/multi_1.latest_run/plots/multi_1.63110.bull)

The buoy nearest Tanapan harbor is bulletin id 52211.

To display a wave bulletin, first download a wave bulletin from the NOAA site and upload it into ESMF using the USB hub provided. The connection is located underneath the display shelf next to the display power switch. Move to the General tab inside the Control & Settings Panel.

Select ‘Buoy’ from the drop down box next to ‘Planning Source’ in the Settings section (refer to Figure 3-14). If file extension is not “.bull”, then select ‘All Files’ from ‘Files of Type’. Once you have selected a wave bulletin, click ‘Open’.

Figure 3-14: Selecting ‘Buoy’ as the ‘Planning Source’ in the General Tab in the Control & Settings Panel

Return to the Planning panel. Once loaded into ESMF, each forecast contained within the bulletin is selectable from a dropdown that will appear in the upper-right corner of the 2DPS display. “NOAA BUOY” is displayed below the drop down. The forecast reference time is displayed in the center of the panel and the position of the forecast is displayed in the upper-left corner. This 2DPS displaying a wave bulletin forecast is displayed in Figure 3-15.

Figure 3-15: 2DPS displaying a wave bulletin forecast

The course and speed recommendations in the CSRM panels (discussed in the following section) are also calculated using the wave bulletin. When a ‘Day and Hour’ is selected from the 2DPS dropdown, both the 2DPS and the CSRM panels will update (refer to Figure 3-16). To verify, you should see that the timestamps on the CSRM panels match the ‘Day and Hour’ selected from the 2DPS drop down box.

Note that the summary data in the ESMF header still reflects the live radar system.

Figure 3-16: 2DPS dropdown also updates the CSRM panels with the wave bulletin data

The 2DPS can also ‘pop-out’ a new 2DPS panel by selecting the ‘+’ icon on the upper-right corner of the 2DPS frame. The pop-out display is always of the live radar feed.

Course and Speed Recommendation

The CSRM (Course and Speed Recommendation) panels recommend a course and speed that will mitigate ship motion based on the wave-field. The recommendation based on Heave are shown in Figure 3-17.

Figure 3-17: Course and Speed Recommendation Panels

The course and speed are represented by the degree and distance from the center, respectively.

The white arrow represents the current course and speed read from the Ship Motion Sensor. In the example above, a course between 230-250 or 60-80 at any speed between 0.0 – 10.0 knots would minimize the roll.

The CSRM panels display recommendations based on the radar-measured 2D Power Spectrum.

As discussed in the previous section, selecting ‘Buoy’ in the Course & Settings Panel will changed the displayed recommendations to be based on a bulletin file. Selecting ‘Radar’ in the

Course & Settings Panel will return the CSRM panels to the live radar system.

The DOF button on the top, right-hand corner will change the degree of freedom the recommendations are based on. The currently available degrees of freedom are Heave, Roll, and

Pitch. To the right is a color wheel button that will change the color scheme used on the panel.

3.2.2 Timing

ESMF provides a unique wave and vessel motion prediction capability that can have significant impact on complex operations. Operators receive detailed knowledge of current ocean conditions and are also provided critical timing information during execution. The Timing Panel is used to indicate phase-resolved timing of waves and the resultant vessel motions. Features include the Operational Forecast and Micro-Forecast panels, as well as the Situational Awareness panel. This is shown in Figure 3-18.

Figure 3-18: Timing Panel

The Operational Forecast is a user configurable tool which provides operational views of operability based on thresholds for predicted wave heights and vessel motions. The Micro- Forecast displays are used to evaluate the phase-resolved forecast as it is being generated in order to determine quality and confidence of the Operational Forecast.

Operational Forecast Panel

The Operational Forecast Panel is displayed in Figure 3-19.

Figure 3-19: Operational Forecast Panel

User settings include:

Thresholds for Wave Height, Heave, Pitch, and Roll at origin point (usually CG). The thresholds represent peak-to-peak amplitude of the parameter.

Minimum Operation Time needed to perform an operation (e.g. a crane lift) Confidence Level Roll-up of threshold parameters to consider for Go/No-Go condition

In the above example Wave Height and Pitch are being ‘rolled-up’ to provide the conditions for the Go/No-Go stoplight.

Green indicates no limits (thresholds) are currently exceeded and the Minimum Operating Time is also met.

Yellow can only follow a Green condition and indicates that parameters are still below thresholds but that there is less than the Minimum Operating Time left to complete the operation

Red indicates a threshold is exceeded and the number of seconds until it clears.

The Roll-Up and Forecast bars indicate similar conditions. The numbers in the bars represent the number of seconds (length) of this section of the forecast bar.

Green indicates no limits exceeded at the bar forecast time and no expected limits exceeded for at least Minimum Operating Time seconds.

Dark Red indicates a threshold is exceeded and the number of seconds the threshold is expected to be exceeded.

If a threshold is not currently exceeded, but it’s expected to happen in less than the Minimum Operating Time:

o Yellow if this happens after a green section.

o Red if this happens after a dark red section.

The Roll-Up is the combination of the selected (check-boxes on the left) forecast parameters.

The Confidence Level is used to select how much system error to include in computing threshold exceedance. A higher confidence level means more conservative limits to meet operating conditions.

Micro-Forecast Panels

The Micro-Forecast panel provides detailed information on each time-domain forecast produced by the system. The panel can be ‘popped-out’ by clicking on the smaller ‘+’ on the upper right.

Clicking the large ‘+’ provides a pop-out with additional signal-processing information. An overview of the Micro-Forecast Panel is displayed in Figure 3-20.

ESMF generates a new time-domain forecast of incoming waves and the resultant vessel motions as often as possible with the processing resources available. The limiting processing component is typically the algorithm which computes amplitudes and phases of the discretized ocean wave-field components. This component is referred to as the 360o spectral extractor (SE360). As it begins a new processing cycle (typically every ~1.5 secs in the current system), SE360 uses any new radar data collected since the last processing cycle, and combines it with previously collected data as required to compute the desired wave components. These wave components are then used to compute the forces imparted on the vessel. As each forecast is updated, new motion predictions are also computed. Since new data is introduced with each update, the predictions can vary. If the radar measurements and corresponding ocean wave velocities are consistent then the results of each forecast should also be consistent. The Micro-Forecast displays previous forecasts in a waterfall so that they can be compared to the more recent forecasts.

Figure 3-20: Micro-Forecast Panel Overview

The ship motion time series shows the current forecast output as the green-line going from the center to the right in the Time Series plot. In Figure 3-21, the forecast is for the ‘Roll’ motion of’ Own Ship’, as indicated by the blue-circled drop-down menus.The green-line to the left is what the system predicted for a time, as selected by yellow-circled drop-down menu, before the motion occurred. In this example it is set to the 30-second prediction. Since this value can change with each subsequent system forecast output, if forecast-to-forecast values are inconsistent there will be discontinuities in this line. This area to the left of the time-domain plot also shows what was measured for the selected ship motion of interest by the ship motion sensor (SMS) as the red-line. Comparing the red-line to the green-line in this section of the display provides one assessment of forecast performance.

The additional white and purple lines on the right on the Time Series plot in Figure 3-22 depict statistics of the predictions produced up to that point in the forecast timeline. The white-line is a plot of the average value of the signal envelope for each forecast at the point in the time series. For this example, the white-vertical-double-arrow-line in the figure, which is not plotted by the system but is annotated here for explanatory purposes, represents all the predictions produced up to ‘now’ for a time 25s into the future. The white-dashed arrow points to the plotted white-line at 25s in the prediction window, and this plotted white-line is an estimate of the predicted roll 25s from ‘now’. Since we are averaging values for times along the prediction window, we also have a variation of these values which is indicated by the plotted purple-line. The purple-line represents one standard deviation added to the average value. If predictions are consistent from forecast-to-forecast, the purple-line is closer to the white-line.

When a confidence level is chosen in the Operational Forecast panel, this is selecting the factor for adding sigma to the predicted values to minimize probability of exceeding a threshold.

Figure 3-21: Micro-Forecast Panel Example Part 1

Figure 3-22: Micro-Forecast Panel Example Part 2

As each new forecast is produced, previous forecasts are plotted ‘on edge’ below the new forecast in the Forecast History display section. Peaks in the time series appear as brighter values in the history and troughs as darker values. As new forecasts stack up in the history, if a peak or trough is consistent from forecast-to-forecast, then the history graphic will demonstrate this consistency as vertical stripes. If they are inconsistent, the graphic will appear ‘spotty’.

When the system is performing well, this graphic is referred to as the ‘zebra’, if it is not it is the ‘cheetah’.

In Figure 3-23, the section on the left of the vertical yellow-line, the ‘now’ line, is used to show what the measured motion was for the prediction times. Since measured motion does not change once measured, this section always has a zebra above the forecast history.

Present Future Past Figure 3-23: Micro-Forecast Panel Example Part 3

This can be very useful in seeing a timing-lag issue with the forecast. As the time progresses the

‘zebra’ lines will march in to line up with the measured motions as shown in Figure 3-24.

Figure 3-24: Micro-Forecast Panel Example Part 4

Even more detailed signal-processing information can be displayed in a pop-out window by clicking the large ‘+’ circled in red in Figure 3-25 or by clicking the maximize button.

Figure 3-25: Micro-Forecast Panel Example Part 5

This display contains all the features of those just described but includes additional data on the cross-correlation and average-angle measurements of the predicted signal as compared to the measured motion signal.

The plots include the frequency response of both signals, the cross-correlation lag applied for the peak correlation computation, and the RMS ratio of the predicted signal compared to the measured signal across the forecast time line.

In Figure 3-26 the measured signal (red) is showing a response in pitch that the predicted signal is not capturing. The predicted signal is also higher than the measured signal which is also shown in the RMS ratio plot.

Figure 3-26: Micro-Forecast Panel Maximized

3.2.3 Data & Trends

The Data & Trends panel is used to display measured parameters and their trends. This is displayed in Figure 3-27. Three of the listed parameters can be plotted. Max values over a two-minute window are depicted by the red line and the white line depicts the two-minute average of the single significant amplitude (SSA).

Figure 3-27: Data & Trends panel

Note that some of the columns do not have data entries. This may happens if a trend was not recorded at the exact time specified in the column header. However, if you display the parameter on the graph you will see that the system does in fact have a 24-hour trend associated with that parameter.

To add or replace a graph with a new measured parameter:

1. Select the X-Y plot that will contain the information

2. Click on the table row containing the desired parameter.

All of the currently available history for the selected parameter will appear in the graph.

3.2.4 Control & Settings

The Control & Settings panel is primarily for the user to

1. Control the radar and other ESMF components

2. Set settings for the system and the ESMF display.

3. Collect information about how the system is behaving

Aligned along the top edge of the Control & Settings panel are four tabs: General, Radar 1, Display, and References. This is shown in Figure 3-28.

Figure 3-28: The four upper tabs of the Control & Settings panel

General

The General tab is used for general control and settings, such as the ‘Start’ button that connects the GUI to the ESMF network.

Radar 1

The Radar 1 tab is used to monitor and control the radar, as well as the PPU and RPU associated with that radar. Note that in a multi-radar system there would be a Radar-2 tab to monitor and control the second radar, as well as the PPU and RPU associated with that second radar.

Display

The Display tab is used to change the display settings on the ESMF Display.

References

The References tab is used to view seas and forecast tables as a reference and collect information about how the system is behaving.

General Tab

The General Tab is broken up into three subsections: ‘Start UI’, ‘SMS’, and ‘Settings’. This is displayed in Figure 3-29.

Figure 3-29: The General Tab in the Control & Settings Panel

Start UI

This section contains one button that is labeled ‘Start’ when the GUI is first launched. Clicking this connects the GUI to the ESMF network so that it can begin receiving data. Once the system is connected, this button becomes disenabled and the text reads ‘Ready to transmit’.

Control

This section contains one button labeled ‘Restart’ that restarts the Ship Motion Sensor (SMS) located in the Equipment locker

Settings

The ‘Planning Source’ was briefly discussed in the Planning panel section. This setting controls the source of what is displayed 2DPS and the CSRM. The default is to have it set to ‘Radar’, which sets the source to be the live radar feed. When the user selects ‘Buoy’, the source changes to be the selected wave bulletin. Note that for the multi-radar system the ‘Radar’ option is replaced with ‘Radar Combined’, ‘Radar 1’, and ‘Radar 2’ options. That sets the source to be from the combined radar system, only the first radar, or only the second radar, respectively. Also note that this dropdown will be disabled until the system is connected to the ESMF network.

The ‘Depth’ section displays the depth and allows the user to override this depth. If the depth is not currently overridden, the ‘Clear Override’ button will be disabled. To override the depth, select ‘Override’, enter in a depth, and click ‘Ok’ (refer to Figure 3-30). At this point the ‘Clear Override’ button will become enabled. You may see a “overriding to ____ m ..” label in place of where the depth was as it waits for the system to accept the depth override request. This may take up to 60 seconds. Once the depth has been successfully overridden, the new depth will be displayed.

Figure 3-30: Overriding the depth in the General Tab in Control & Settings

To clear a depth override, simply click the ‘Clear Override’ button, as shown in Figure 3-31. At this point the ‘Clear Override’ button will become disenabled. You may see a “retrieving depth…” label in place of where the depth was as it waits for the system to accept the clear override request. This may take up to 60 seconds. Once the override has been successfully cleared, the current depth will be displayed.

Figure 3-31: Clearing depth override in the General Tab in Control & Settings

The selected ‘Vessel Draft’ sets the ship database that is used in the system. Ship motion forecasts are sensitive to vessel draft. Select the draft closest to your actual draft to get the best forecast.

Radar-1 Tab

The Radar-1 Tab is broken up into two subsections: ‘PPU & RPU Control’ and ‘Radar Control’.

This is displayed in Figure 3-32.

Figure 3-32: The Radar-1 Tab in the Control & Settings Panel

PPU & RPU Control

Cycle power to and restart the RPU and PPU in the Equipment Locker. If the component in off, ‘Power’ will turn the component on. Clicking ‘Power’ again will turn the component off. If you ‘Power’ or ‘Restart’ a component, the lights on the System Status in the ESMF Header may change. After performing a ‘Power’ or ‘Restart’ on a component, it is recommended that you wait at least 10 before perform another ‘Power’ or ‘Restart’.

Note that if you ‘Power’ or ‘Restart’ the PPU, it is recommended that you close the GUI and start it back up again.

Radar Control

The Radar control section was mostly covered in the Startup section. This is used to check the radar status, turn the radar transmit power on and off, set a radar blanking region, and open the radar scope. The radar blanking region interrupts the radar transmission between the angles provided. Two items of note:

1. The blanking regions can be set only when the radar transmit is off.

2. Extensive use of this feature can shorten the life-span of the radar because it actually turns the radar off every rotation.

Display Tab

The Display Tab is controls whether warnings are displayed when performing ‘Power’ and ‘Reset’ operations and the units displayed in the GUI. This is shown in Figure 3-33.

Figure 3-33: The Display Tab in the Control & Settings Panel

Turn Warnings Off/ Turn Warnings On

By default, each time the user does a ‘Power’ or ‘Restart’ to the PPU, RPU, or SMS through the

GUI, a confirmation dialog appears asking to confirm the operation. This button gives the user control over whether these warnings are displayed. By clicking the ‘Turn Warnings Off’, it will turn these warnings off.

Unit System:

This changes the units displayed on the GUI. By default the system is set to SI Units. The other option is US Units. The current capability of the units change is limited. This dropdown will toggle the units between meters/feet in the following sections: The Data Readout on the

Planning and Timing panels (see Figure 3-34), the Situational Awareness on the Planning and

Timing panels (see Figure 3-35), the Trends panel (see Figure 3-36), and the ESMF header (see

Figure 3-36).

Figure 3-34: Unit changes on Data Panel

Figure 3-35: Unit changes on Situational Awareness Panel

Figure 3-36: Unit changes on Header and TrendsPanel

References Tab

The References tab is used to view seas and forecast tables as a reference and collect information about how the system is behaving. This is displayed in Figure 3-37.

Figure 3-37: The References Tab in the Control & Settings Panel

Extract Logs

As ESMF runs, the PPU creates log files with important information about how the system has behaved over time. For the diagnostic purposes, the user may be asked at some point in the future to extract these log files to a file to then send to ESMF personal. This can simply be done through the Extract Logs feature on the References tab.

Clicking the ‘Extract Logs’ button will open up the frame displayed in Figure 3-38. The ‘File

Path’ section prompts the user to enter a file path for the file to be created. Use the ‘…’ buttons to the right to open a file chooser window. Please be sure to append “*.tar” to the end of the filename that is chosen.

The ‘Select All’ option is selected by default. This tells the system to collect all the files on the system. When this is selected, the ‘Start Date’ and ‘End Date’ options are disabled.

‘Extract’ will start the extraction process.

Figure 3-38: Extract Logs Dialog in References Tab in the Control & Settings Panel

Depending on how large the log files are on the system, ‘Select All’ can create a larger file than necessary. Deselecting ‘Select All’ will enable the ‘Start Date’ and ‘End Date’ sections (see Figure 3-39), which will tell the system to collect information only between the given certain date range. This will almost always create a smaller file, but is usually much slower because it requires the system to check the date on each log statement. If you are asked to extract the logs by ESMF personal, they will inform you on which options to choose.

To enter a date, click on the right ‘…’ icon. This will open a calendar through which you can select the date. Note that if you only want one day of information, enter that day into both the ‘Start Date’ and ‘End Date’.

Figure 3-39: Choosing Data range in Extract Logs Dialog

The next step is to click the ‘Extract’ button to begin the process. You will see this button replaced by a progress bar and text at the bottom with a short description about the stage of the extraction process (see Figure 3-40). Once the extraction process has completed, the user will see a success dialog box as shown in Figure 3-40. You may also minimize the frame and continue viewing the main ESMF GUI. You will be notified once the log extraction has completed. You may cancel this extraction at any time by exiting out of the frame, but you will be asked to confirm the cancelation of this operation. If any issues occur with the log extraction process, a warning will appear saying that the extraction failed. Contact ESMF personal if this occurs.

Figure 3-40: Successfully extracted logs and progress bar

Table References

View the Beaufort, NTA/WMO, and Forecast tables as references.

3.3 Shut Down

To completely shutdown the ESMF system (Refer to Figure 3-41):

1. Move to the Radar-1 tab in the Control & Settings Panel

2. In the Radar Control section, click the ‘Transmit Power’ ‘Off’ button

3. In the PPU & RPU Control section, power off the RPU by pressing the ‘Power’ button next to the ‘RPU’ label.

4. In the PPU & RPU Control section, power off the PPU by pressing the ‘Power’ button next to the ‘PPU’ label.

5. Close the ESMF application using the X in the upper right.

Figure 3-41: The steps to shutting down the ESMF system labeled.

6. Shutdown the ESMF bridge console using the Windows Shutdown function or press and release the momentary power button located just under the console ledge. Turn off the ESMF display.

4 Data Handling Requirements

Data acquisition is an inherent requirement for the ESMF system and thus the data to be acquired is dictated by the test objectives. The data collected and generated by ESMF during testing is controlled by Department of Defense Distribution Statement D – Distribution authorized to the Department of Defense and U.S. DoD contractors. Reports, data, and disks that are specific to the ESMF program should be marked and handled accordingly.

The ESMF system is built upon the Gravity system architecture, which includes an archiving tool that will be the main data collection mechanism. Data are moved within the ESMF system using a publish/subscribe paradigm. An archiving instance subscribes to data products which are desired for archiving, and writes them to file as they are published to the system. Through this process, any user with access to the ESMF system can archive any desired data products. The archiving GUI interface allows management of the archiving features and selection of desired data products. The plan is to archive all of the system data collected during designated operations, which amounts to several terabytes of data. Archived files include a time stamp in their name, which indicates the date and time for which the data log began.

5 Maintenance and Troubleshooting

Detailed maintenance and troubleshooting can be found in the System Technical Manual. For initial steps please fill out the System Information Data Form ( System Information Data Sheet) as soon as possible and forward to ESD_ESMF@aphysci.com.

6 Personnel Safety

All persons are required to follow all required shipboard safety procedures at all times. The Ship’s Master and crew are responsible for the safety of all personnel aboard; their rules and instruction in such matters are to be followed by all hands. Spare no effort to avoid accidents, the consequences of which are generally worse at sea. Man overboard, fire, flooding and significant injuries should be reported immediately to the bridge officer on watch. Bring any unsafe condition to the attention of ship’s crew at once. Follow all rules about use of work vests, lifelines, hard hats, proper footwear, etc.

7 Information Assurance Controls

Clearing and Sanitizing. Ensure that all documents, equipment, and machine-readable media containing sensitive data are at risk from unauthorized copying and illegal distribution if not properly cleared and sanitized before distribution outside of DoD. Specific actions are:

All documents, equipment, and machine-readable media containing sensitive data shall be properly cleared and sanitized in accordance with DoD 5200.1-R and ASD(C3I) Memorandum, dated June 4, 2001, subject: "Disposition of Unclassified DoD Computer Hard Drives."

A release catalog shall be created, logged, and stored for at least five (5) years on all documents, equipment, and machine-readable media that has been cleared and sanitized of sensitive data before being released outside of DoD.

The release catalog shall be updated and verified every time sanitized documents, equipment, and machine-readable media are released outside of DoD.

Audit. Audit and version controls shall be in place to ensure the most recent version of the release catalog is updated and stored.

Inspect the individual system software, verifying it is configured properly in accordance with DOD policy, STIGs, and SRGs.

Obtain system documentation and identify the system components that should generate audit reports within the test boundary.

Obtain the software name, version, and manufacturer of the audit tool/software implemented into the system, if any.

Observe the system administrator or system user who has the Audit system authority using the available audit tools to review audit records online (e.g., the audit records contain user IDs, audit events, specific time/date).

Verify that the audit reports generated are in a readable format.

Verify that the audit reports highlight security-significant events that might warrant additional investigation.

Review the system configuration for invalid logon attempts (or unsuccessful attempts lock out) and the number of unsuccessful access attempts allowed in a given period. If the time-delay control is supported by the system, verify if it is enabled.

Schedule an inspection with IAM/IAO and system administrator annually to verify proper IA controls.

Appendix A QuickStep

A.1 Setup

1. Verify breakers are closed and power is available to the ESMF electronics locker via

P111 and the ESMF Bridge console via L109.

2. At the bridge console, turn on power to the display then press and release the momentary power button located just under the console ledge. Login as user ‘esmf’ if prompted for a login.

3. Select the ESMF icon on the Windows Desktop and double click or press enter to start the ESMF Graphical User Interface (GUI). Once the GUI starts, the display should appear as shown in Figure A-1.

Figure A-1: Initial Display – General Tab

4. (Refer to Figure A-2) Find the System Status on the upper-left corner of the display. If the

‘SMS’ indicator is grey and all other indicators are green, then the system is ready to start receiving data. Press the ‘Start’ button.

Figure A-2: Location of the System Status and ‘Start’ Button on the General Tab

5. It may take the system up to 60 seconds to completely initialize after clicking ‘Start’.

Once the initialization process is complete, the ‘Start’ button will become disabled and replaced with a faded ‘Ready to transmit’ text. Additionally the ‘Planning Source’ and

‘Depth’ settings will become enabled.

6. (Refer to Figure A-3) The next step is to start the radar. Click Radar-1 on the upper horizontal tabs. Look at the Radar Control section on the right half of the display. The

‘Transmit Power’ should be ‘Off’ because the radar is not transmitting. The ‘Ready

Status’ indicator should indicate green if the radar subsystem is ready to begin transmitting.

Figure A-3: Location of the ‘Transmit Power’ buttons and ‘Ready Status’ indicator in the Radar Control section of the Radar-1 Tab.

7. Visually verify the radar is clear of any obstructions then click the Transmit Power ‘On’ button. This will energize the unit and begin rotating the antenna.

8. ESMF is now in normal operating mode and has begun to collect data. After about three

(3) minutes the ocean wave spectra [2DPS] should become visible on the planning tab and timing forecast should be ready shortly after that.

A.2 Shutdown

To completely shutdown the ESMF system (Refer to Figure A-4):

1. Move to the Radar-1 tab in the Control & Settings Panel

2. In the Radar Control section, click the ‘Transmit Power’ ‘Off’ button

3. In the PPU & RPU Control section, power off the RPU by pressing the ‘Power’ button next to the ‘RPU’ label.

4. In the PPU & RPU Control section, power off the PPU by pressing the ‘Power’ button next to the ‘PPU’ label.

5. Close the ESMF application using the X in the upper right.

Figure A-4: The steps to shutting down the ESMF system labeled

6. Shutdown the ESMF bridge console using the Windows Shutdown function or press and release the momentary power button located just under the console ledge. Turn off the ESMF display.

Appendix B Frequently Asked Questions

B.1 Why is the ESMF heading different from the ships Gyro?

ESMF derives ship heading from the ship motion as measured by the ESMF Ship Motion Sensor.

This sensor can drift off course, especially when the ship is at anchor, pier-side, or stationary for an extended period.

If the heading is off by more than 2 degrees, reset the SMS sensor once the ship is underway and on a steady heading. It can be reset at any time, but the ship should remain on a steady course for 15 minutes after an SMS reset.

B.2 Why is the ESMF system unable to display any position?

ESMF will not display any position or ship motion data until it achieves a ‘heading lock’. Even when good satellite data is available, if ESMF can’t determine a heading, then no data is sent.

This is to guard against providing incorrect forecasts.

B.3 Why is the depth displayed in ESMF different from the Fathometer?

A couple of reasons. The main takeaway is to never use this value for navigation or as a reference for water under the keel. This value is only used to improve the accuracy of a wave forecast in shallow water.

The depth displayed in ESMF is a value read from a file. The ship position is used to look up a value from the file. The file only contains data at approximately 1/10 degree resolution, so many small features picked up by the fathometer may be missed by ESMF.

A change in ESMF depth will reset the wave forecast, so there is a check to prevent this from changing too often. Even in a rapidly changing environment, the depth will never update more often than every 60 seconds. Additionally, since it is used solely to improve the accuracy of the forecast in shallow water, the system may stop updating the depth value entirely if the water depth is greater than 2000 m.

Finally, the depth displayed is the total water depth, from the surface to the bottom. It is not depth under the keel.

B.4 Why does the Ship Motion Sensor pitch/roll differ from my Clinometer?

Short answer: A Clinometer is not a roll sensor.

Long answer:

A clinometer measures the direction of maximum acceleration.

For static systems, this aligns with the gravity vector and gives you the incline.

For dynamic (accelerating systems) a clinometer does not measure the pose of the body

— only the angle of the acceleration vector

When measuring at a height above the center of rotation, you get acceleration due to the rotational motion and the moment arm. Given a system with a center of gravity at position A, the sway acceleration at B for a roll angle (θ) around the point A at a frequency (ω) is:

Measured direction φ of maximum acceleration for inclinometer at A:

Measured direction φ of maximum acceleration for inclinometer at B:

�� = � + atan �

�� ≅ ��1 + �� �

For a 8s period with H=20m we get:

�� = 2.26�

The ESMF ship motion sensor readings are corrected to motion at the ship Center of Gravity.

Appendix C System Information Data Sheet

C.1 ESMF System Information

Please collect the following information to assist in ESMF system troubleshooting.

Note: The locations of the above system parameters are indicated on the next page in Figure C-1 and Figure C-2

Current date/time:

Parameter Value Notes Nominal Value

1 Radar 1 Status Indicator Red or Green Green

2 Time Server Status Indicator Red or Green Green

3 SMS Status Indicator Red or Green Green

4 Significant Wave Height 0.1 – 5 m

5 Peak Period 4 – 25 s

6 2DPS Date and Time Within 3 min of current time

7 CSRM Date and Time Within 3-5 min of current time

8 Does 2DPS have a message indicating “>X minutes old”?

Yes or No No

9 If 9 is yes, what is X?

10 Is Ship Motion Data (Speed, Heave, Pitch Roll and List) in the Data Pane Updating?

Yes or No Yes

11 Is the Ship Heading Updating?

Yes or No Yes

12 Does the ESMF Heading Match the Ship’s Heading?

Yes or No Yes

13 Is the Ship Under Way? Yes or No Yes

14 What is the Ship Speed? In Knots >0

Figure C-1: Locations of System Parameters 1 through 7, 10 and 11

Figure C-2: Locations of System Parameters 8 and 9 (if present)