Kongsberg K-Sync Operator's Manual
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Kongsberg K-Sync Operator's Manual

Synchronization unit
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Synchronization Unit

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  • Page 1 Operator Manual K-Sync Synchronization Unit...
  • Page 3 KONGSBERG K-Sync Operator Manual Kongsberg Maritime 342435/B January 2021 © Kongsberg Maritime AS...
  • Page 4 Kongsberg Maritime AS. Kongsberg Maritime AS endeavours to ensure that all information in this document is correct and fairly stated, but does not accept liability for any errors or omissions.

  • Page 5: Table Of Contents

    Trigger output (to echo sounder) ..............23 Specific signal settings ................24 Configuration of GPTs and WBTs ..............25 Backing up and importing configuration files ............26 Backing up K-Sync configuration files ............26 Importing K-Sync configuration files............27 QUICK START GUIDE............28 How to get started....................28 OPERATIONAL PROCEDURES ..........
  • Page 6 The complete synchronizing system ..............8 The Workstation and the Synchronizing Unit ............9 The Synchronizing Unit ..................10 System settings - General ..................15 System settings - K-SYNC Status ................16 Depth datagram ID ....................17 K-Sync status SIS4 ....................18 K-Sync status SIS5 ....................18 Allow modification....................19 Password dialog......................19...
  • Page 7 Operator Manual Echo sounder – OS 38 ...................39 Display settings ......................39 Echo sounder status display ...................40 Runtime settings dialog ..................42 Runtime settings dialog - External input ..............45 Runtime settings dialog - Calculated..............46 Runtime settings dialog - Fixed period ..............47 Trigger pulse......................48 Trigger display for EA 600 and OS 38..............49 Trigger display for EA 600, EM 120 and SBP 120..........50 User configuration profiles ..................51...
  • Page 8 KONGSBERG K-Sync 342435/B...

  • Page 9: System Description

    SYSTEM DESCRIPTION SYSTEM DESCRIPTION K-Sync The K-Sync Synchronizing Unit provides highly configurable timing of pinging when multiple echo sounders are employed on a vessel. The Synchronizing Unit optimizes the timing of each transmit. Optimal timing ensures that echo sounders that may interfere with each other do not transmit concurrently, which could result in acoustic interference and degraded data.

  • Page 10: Network Interface

    Figure 1 The complete synchronizing system The K-Sync Application provides the user interface, which allows monitoring of status, modifying settings, trigger schedule as well as performing diagnostics. The application needs to run and be connected to the Synchronizing Unit in order for the system to initialize and be operational.

  • Page 11: Signal Interface

    SYSTEM DESCRIPTION Figure 2 The Workstation and the Synchronizing Unit The Workstation and the Synchronizing Unit are interfaced via a network connection. The Synchronizing Unit can also receive depth data from echo sounders and other external sources. Depth is transmitted as datagrams (via UDP) directly to the Synchronizing Unit.

  • Page 12: Concept Of Operation

    KONGSBERG K-Sync Figure 3 The Synchronizing Unit The Synchronizing Unit can utilize feedback signals from echo sounders in order to perform optimal synchronization. Feedback signals are not required, but should be used when available. If feedback signals are not available, the operator can estimate the waiting period required for the echo sounder to become ready.

  • Page 13: Workstation Requirements

    • 32 or 64-bit Intel or AMD processor, 2 GHz or higher • 8GB RAM • 1x 100 Mbps network interface card • 256 GB HD • Recommended screen resolution is 1280x1024 or larger Reference K-Sync Installation Manual, 342741 Operator Manual EM Series Datagram Formats, 850-160692 342435/B...

  • Page 14: System Installation

    KONGSBERG K-Sync SYSTEM INSTALLATION Overview • Getting the K-Sync operational requires setting up the Workstation as well as configuring the Synchronizing Unit. The procedure for installing the hardware is covered in the K-Sync Installation manual - Document number 342741: – An overview of all the steps necessary to perform installation from start to finish is outlined in the chapter Installation Procedures.

  • Page 15: Workstation Software/K-Sync Application Installation

    Once that application has started, the status in the application window will indicate whether a connection has been established with the Synchronizing Unit within about 10 seconds. Note The user interface will be grayed out whenever the K-Sync Application is unable to communicate with the synchronizing unit. 342435/B...

  • Page 16: System Configuration

    KONGSBERG K-Sync SYSTEM CONFIGURATION Overview Configuration of the Synchronizing Unit is performed once installation has been completed as described in the previous chapter. The system and installation settings are primarily configured during initial installation. The installation settings specify which echo sounder systems are installed and how the signal interface interprets and generates individual trigger signals.

  • Page 17: System Settings - General

    SYSTEM CONFIGURATION Figure 4 System settings - General 342435/B...

  • Page 18: Network Settings

    The IP address of the synchronizing unit is specified here. This address should normally be 157.237.60.169, unless the synchronizing unit IP was set differently during installation (see Installation Manual). After changing the IP address in the K-Sync application, the application should be restarted and one should verify that communication with synchronizing unit is functioning (LED in system control turns green or yellow).

  • Page 19: Estimation Of Travel Time

    Datagram output Trigger status from synchronizing unit can be provided to other multibeam workstations running Kongsberg software. This requires that: • Seafloor Information System (SIS) software V3.8 or higher is already installed on echo sounder workstation...

  • Page 20: Installation Settings

    K-Sync status is shown at the bottom of the numerical display in SIS. The terms seen in the K-Sync Application window are in parenthesis.

  • Page 21: Managing Installed Systems

    Figure 10 Password dialog Managing Installed Systems The Echo sounder systems to be controlled may already have been imported into the K-Sync Application during the installation. If not, then new systems can be added via dialog and selecting the button.

  • Page 22: Installation Settings - Manage Installed Systems Button

    KONGSBERG K-Sync Figure 11 Installation Settings - Manage Installed systems button Open the dialog on the menu, or press ctrl+i. Installation Settings Settings Select the button. Manage installed systems This dialog will allow new systems to be added or current ones to be deleted (see figure on page ).

  • Page 23: Configuring Signal Interface

    SYSTEM CONFIGURATION Figure 12 Manage Installed Echo Sounders dialog Configuring signal interface The installation settings specify the parameters for the input and output signals between the Synchronizing Unit and the echo sounders: Feedback signals (from echo sounder): are signals that communicate if echo sounder is ready and when a transmit occurs.

  • Page 24: Feedback Signals (From Echo Sounder)

    It also works well if echo sounders keep this signal inactive when they are not configured for external pinging as they will instantly be placed into standby (see section Echo Sounder status on page 40 for more information). This signal is referred to as RTS in Kongsberg installation manuals. 342435/B...

  • Page 25: Trigger Output (To Echo Sounder)

    SYSTEM CONFIGURATION Transmitting Figure 15 Installation settings - Transmitting This signal goes active at the instant when the transmit pulse starts. It is not required that the pulse length of this signal be the same as the transmit pulse itself. If the signal is available, the trigger display will show a red pulse whenever the echo sounder transmits.

  • Page 26: Specific Signal Settings

    KONGSBERG K-Sync Note There are wide differences among echo sounders in their implementation of the signal interface. Consult the product manual for the individual systems for specific information on timing and signal specification. Specific signal settings The following settings are available for ready to transmit and the transmitting feedback signals: •...

  • Page 27: Configuration Of Gpts And Wbts

    The configuration of GPTs (General Purpose Transceivers) and WBTs (Wide Band Transceivers) settings are applicable to echo sounders that are always triggered together but have individual feedback signals. For example, the different Kongsberg EA and EK models GPTs and WBTs should be configured as Additional GPTs under Advanced dialog.

  • Page 28: Backing Up And Importing Configuration Files

    Backing up and importing configuration files Backing up K-Sync configuration files All settings that are used by the K-Sync Application can be backed up as a ZIP file archive. This will backup all system, installation and runtime settings that are in use at any given point in time.

  • Page 29: Importing K-Sync Configuration Files

    SYSTEM CONFIGURATION Optional: click the folder icon to select the folder to save archive to. By default, the archive will be saved to: C:\ProgramData\Kongsberg Maritime\K-Sync backed up config files. Optional: if you want to save to a custom file name, enter the filename in the dialogue that appears when clicking the folder icon.

  • Page 30: Quick Start Guide

    Power up the Synchronizing Unit. The synchronizing unit will be ready within 30 seconds. Launch the K-Sync Application on workstation. Wait for main window to launch. Meanwhile, the splash screen will convey status during initialization and if the application is able to connect to the synchronizing unit.

  • Page 31: Trigger Status

    STANDBY ready due to timeout (see status log for specific reason). simply means DISABLED the echo sounder is disabled in the K-Sync by user (checkbox unchecked). Figure 22 Echo sounder status for one particular echo sounder 342435/B...

  • Page 32: Runtime Settings

    KONGSBERG K-Sync Optional step: If you are running the system for the first time, verify that the Runtime are set correctly. The Runtime settings specify how the Synchronizing Settings Unit will determine when each echo sounder is ready to advance to the next group (see figure Runtime settings on page 30).

  • Page 33: System Control, Running

    QUICK START GUIDE Synchronizing unit is enabled by clicking on the button next to Running/Paused it. When running, the LED will remain a steady green and button will indicate "running." Figure 24 System control, running When synchronization starts, the Trigger display shows the current state of triggering.
  • Page 34 KONGSBERG K-Sync Read the chapter OPERATIONAL PROCEDURES on page 33 to learn more about configuring the K-Sync in more detail. 342435/B...

  • Page 35: Operational Procedures

    The runtime settings will also be explained in detail. The K-Sync Application serves to set up the Synchronizing Unit for proper operation, but the Synchronizing Unit is self-contained when it comes to performing the synchronization.

  • Page 36: System Control

    Once the K-Sync Application has been started, it will automatically attempt to connect to the Synchronizing Unit. The LED conveys the state of the Synchronizing Unit. This LED will remain red until connection has been established.

  • Page 37: System Status And Manual Depth Setting

    LED will turn red. When system reconnects, the K-Sync Application will return to the same state (running or paused) as before the system became disconnected and the current mode will be conveyed in the user interface.

  • Page 38: Trigger Groups

    KONGSBERG K-Sync Figure 27 System status The System status shows current depth and recent status and error messages from the Synchronizing Unit The LED turns green when depth is received from an external source over network, (see figure System status – current depth on page 36). The controls for configuring external depth are contained in the System Settings (see section Managing Installed Systems on page 19).

  • Page 39: Trigger Group Status

    OPERATIONAL PROCEDURES Active group indicator (see figure Trigger group status on page 37) Trigger group schedule. The active group indicator shows which group is currently active. Groups that do not have any echo sounders assigned or echo sounders that are not ready are skipped. A maximum of 16 groups can be scheduled.

  • Page 40: Trigger Display

    KONGSBERG K-Sync Echo sounders that will interfere with each other should be put into separate trigger groups. The goal is usually to trigger each echo sounder as frequently as possible to maximize data density. The type of survey will determine which echo sounders should be prioritized and scheduled to ping most frequently.

  • Page 41: Display Settings

    OPERATIONAL PROCEDURES Each trigger group is visually separated by a yellow vertical group line. By inspecting the trigger chart for a particular group it is possible to see which echo sounder is taking the longest to complete its ping cycle. This echo sounder will have a red line that starts at the beginning and extends all the way to the end of the group.

  • Page 42: Echo Sounder Status

    KONGSBERG K-Sync Echo Sounder status The individual states of the echo sounders are shown in the Echo sounder status display. Also, a checkbox is provided for enabling and disabling each echo sounder. Figure 33 Echo sounder status display The Echo sounder status provides synchronizing status for each of the installed echo...
  • Page 43 If the echo sounder is set to calculated or fixed period trigger mode with no Ready to transmit or Transmitting signal available, then K-Sync has no way of knowing the actual state of the echo sounder. Hence the state of the echo sounder will remain active until disabled and the value will simply reflect the timing parameters in runtime settings.

  • Page 44: Runtime Settings

    KONGSBERG K-Sync Runtime settings Each echo sounder has its own set of configurable runtime settings. These settings establish how the Synchronizing Unit will determine when the echo sounder is ready to be triggered and when it can advance to the next group.

  • Page 45: Determination Of Active Period

    OPERATIONAL PROCEDURES Determination of active period One of the keys to optimal timing of the echo sounders lies in the estimation of the active period. The active period is defined as the duration the echo sounder is busy (transmitting, receiving, and processing) after a trigger. In other words: how long does it take before the echo sounder is ready to be triggered again? For scheduling to take place, the Synchronizing Unit needs to determine when an echo sounder has completed its ping cycle after being triggered.

  • Page 46: Trigger Modes

    KONGSBERG K-Sync The active period estimated by this formula can also be used to determine the maximum ping rate for the system at the specific depth. The maximum ping rate for this system will be the inverse of the active period calculated.

  • Page 47: Runtime Settings Dialog - External Input

    OPERATIONAL PROCEDURES External input mode Figure 35 Runtime settings dialog - External input Typically the trigger mode should be set to external input if the echo sounder provides a ready to transmit signal. The Ready to Transmit and the Transmitting feedback signals are configured as part of the installation settings.

  • Page 48: Runtime Settings Dialog - Calculated

    KONGSBERG K-Sync Calculated mode Figure 36 Runtime settings dialog - Calculated The calculated mode is the most flexible mode when the active period needs to be estimated by the Synchronizing Unit. In this mode the ready to transmit signal is not used (if provided).

  • Page 49: Runtime Settings Dialog - Fixed Period

    OPERATIONAL PROCEDURES Table 7 Basis for determining multiplication factor based on maximum angle of incidence Maximum angle of incidence Multiplication factor 100% 285% Fixed delay (ms): Additional time that is independent upon depth (e.g. processing time). Range is 0 – 60,000 ms. If both values are set to 0, then the active period will simply be the round trip time of a normal incidence sounding at current depth.
  • Page 50 KONGSBERG K-Sync Approach for determining best value for parameters The goal of fine-tuning the timing of synchronization is to balance two tradeoffs when estimating the active period: • Maximize data density: Keeping the estimated active period as short as possible.

  • Page 51: Special Trigger Settings

    OPERATIONAL PROCEDURES Once all echo sounders have been set up, it is recommended to add all echo sounders to one group and start with all echo sounders disabled. Then enable one additional echo sounder at a time. Try each out and see how the echo sounders impact each other by examining the data from the active echo sounders.

  • Page 52: Trigger Display For Ea 600, Em 120 And Sbp 120

    The master setting is an advanced setting that only rarely is used (for example, EM 120 is the only KONGSBERG echo sounder that uses this setting). Also note that this setting does not designate the echo sounder as "master". The K-Sync is always considered the "master".

  • Page 53: User Configuration Profiles

    Create a new profile (using current settings) with a specified name Delete... Delete an existing profile The K-Sync Application comes with several pre-defined profiles. Notes on configuration profiles: • When settings are changed, they are not stored permanently until the operator explicitly saves settings to the profile.

  • Page 54: Diagnostic Tool

    KONGSBERG K-Sync • When new profiles are created, they are appended to the end of the list. Diagnostic tool shows the signal level on each input and output of the Diagnostic display Synchronizing Unit. There are up to 48 inputs (feedback signals) and up to 16 outputs (trigger signals) depending upon hardware configuration of SU.

  • Page 55: Troubleshooting

    OPERATIONAL PROCEDURES Troubleshooting This troubleshooting guide provides some solutions for solving common error conditions Condition Resolution K-Sync Application does not connect Check the configured IP address in with Synchronizing Unit. LED in System dialog. Does it match the System Status is red/button: “No connection”...
  • Page 56 KONGSBERG K-Sync Condition Resolution The plot for a line is steady high The ping rate for the system is higher than (transmitting) instead of showing the the trigger display resolution (50 ms), states display will not show individual pulses correctly unless ping rate is 10 Hz or below.

  • Page 57: Adescription Of Ping Cycle

    Appendix A DESCRIPTION OF PING CYCLE Appendix A DESCRIPTION OF PING CYCLE The following diagram explains the timing relationships of the trigger pulse, feedback signals and the trigger display plots. Figure 43 Signals display The timing relationships of the various signals and trigger display are shown. Signal transitions that are relevant to timing are indicated by an arrow.

  • Page 58: Trigger Pulse

    KONGSBERG K-Sync The following list explains each of the arrows in figure Signals display on page 55 Echo sounder is ready to be triggered (state plot is green). Ready to transmit signal is active. Beginning of ping cycle. Synchronizing Unit triggers echo sounder (trigger signal becomes active).

  • Page 59: Btechnical Specifications

    4, 8, 12 or 16 Supported signal levels (inputs and outputs): TTL and RS-232 Supported depth datagram input: • Kongsberg EM: D, X, and E • Kongsberg EA 500 • NMEA: DPT and DBS Depending upon delivered configuration (4, 8, 12 or 16 systems).

  • Page 60: Cglossary

    See also: Calculated (trigger mode), External input (trigger mode). GPT: General Purpose Transceiver. Refers to transceiver units for a product line of KONGSBERG single beam echo sounders (EK60, EA600 etc.). LED: Light Emitting Diode. Used in this document to refer to an indicator in the user interface.
  • Page 61 Appendix C GLOSSARY See also: Transmitting (signal). RTS: Ready to send. Name used by Kongsberg multibeam echo sounders to refer to the Ready to transmit signal. Standby (state): State an echo sounder is in if it has timed out (either not ready or failed to transmit upon being triggered).
  • Page 62 © 2021 Kongsberg Maritime...

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