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The copyright in this document is the property of Tritech International Ltd. The document is supplied by Tritech International Ltd on the understanding that it may not be copied, used, or disclosed to others except as authorised in writing by Tritech International Ltd.
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8. Using with Other Tritech Sonars ................127 9. Adding a Micron Echosounder ................128 10. Adding a Micron INS ..................130 11. Conversion Between MicronNav Responder and Transponder ......131 11.1. Seanet Setup for Conversion ..............131 11.2. Conversion to Transponder ..............133 11.2.1.
Under no circumstances should a product be returned that is contaminated with radioactive material. The name of the organisation which purchased the system is held on record at Tritech International Ltd and details of new software or hardware packages will be announced at regular intervals.
The system can be used stand-alone in Transponder mode in which case the subsea unit only requires power, or it can be used with Tritech's range of imaging Sonars (Micron MKII or MKIII, Super SeaKing and Gemini) in responder mode in which case the subsea unit is powered by and communicated with through the Sonar Aux port.
Avoid USB hubs and cables exceeding 5m. RAT Connection A single DE-9 female front panel connector for connection to a “V2” Remote Access Terminal. Transducer Connection DB-25 female port on rear panel for connecting the MicronNav USBL Dunking Transducer. Status Indicators 1 x Power/Status Indicator...
The Tritech Micron INS has been designed to be fully compatible with the MicronNav System and can be integrated in a variety of ways. For full details of how to install a Tritech Micron INS with the MicronNav please refer to the Micron INS Product Manual (document reference: 0722-SOM-00001) alongside this document.
The USBL Dunking Transducer contains an integral Magnetic Heading and Pitch/Roll Sensor that enables the MicronNav Seanet application software running on the surface computer to make corrections to world axis, this is particularly effective when operating from a non- magnetic mobile platform/vessel or fixed dockside.
In Responder mode there is no direct connection from the ROV to the sub-sea Modem head - in this configuration the ROV connects to the Tritech Sonar head (Main port) using the cable supplied with the Sonar, and the MicronNav sub-sea Modem head (Main port) connects to the (Auxiliary port) of the Sonar using the Double Ended Interconnect cable supplied with the MicronNav system.
3.1.7. External Computer Data Link Electrical Connections If the MicronNav data is required by a third party software package running on an external PC then connection from the Surface MicronNav100 Interface Hub to the external PC is made via one of the four serial interface connectors located at the rear of the unit, Port A, B, C or D.
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• Seanet Pro using AIF Card - select this option if you are using a SCUv4, or PC equiped with a PCI AIF card. • Seanet Pro using RS232 - select this option if you are using a SeaHub, MicronNav Hub, PC or Laptop with either hardware COM Ports or USB converters.
As of Seanet Pro V2.23 Build 539 the MicronNav Responder unit can be connected in a variety of different ways: • Through the AUX Port of a Sonar connected on Port B of the MicronNav Hub - this is the factory default option •...
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Micron Responder without first seeking help and advice from Tritech International Ltd. Ensure the Tritech International Ltd Sonar has been installed on the ROV as detailed in the appropriate product manual. Install the MicronNav sub-sea Modem Head on the ROV as detailed in Section 3.1.2, “Mounting the Subsea Modem Head”...
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Tritech International Ltd Sonar, Seanet Pro will need to be setup to work with the ROV communications link. For the appropriate Port on the MicronNav Hub (Port B or Port D) - select Utilities from the top menu bar followed by Com Setup to open the Channel Setup...
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Sonar to Sub-sea Modem Communication Configuration The Sonar Aux port now need to be configured for the MicronNav sub-sea Modem Head - click the action arrow in the MICRON row followed by Setup from the sub-menu, you will be...
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USBL DUNKING TRANSDUCER MICRON RESPONDER The MicronNav Responder can be directly connected to either Port B or Port D of the MicronNav Hub and provide direct communications to it. Select Utilities from the top menu bar followed by Com Setup to open the Channel Setup page.
OF GEMINI 720is USBL DUNKING TRANSDUCER MICRON RESPONDER The MicronNav Responder can be connected to the AUX Port of a Gemini unit (720i, 720id or 720is) so long as the Gemini unit is identified as being Node 100. Caution When utilising the AUX Port of a Gemini Sonar, care should be taken to ensure that the power supplied to the unit does not exceed the rating of the Responder unit.
Modem head. 3.2.6. Connecting optional third party GPS Receiver The MicronNav system can be configured to accept a NMEA GPS input string from an external third party GPS receiver enabling synchronisation of the Seanet display and ROV tracked position to true world position.
MRU Sensors The USBL Dunking Transducer integral Magnetic Heading and Pitch/Roll sensor that enables the MicronNav application to make corrections to world axis is particularly effective when operating from a non-magnetic mobile platform/vessel or fixed dockside, however when operating from a steel hull vessel the integral sensor will be affected by magnetic interference from the vessel and it is recommended in this type of installation that an external ships Compass &...
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Edit Job (N.B. The same selection controls will be found when Creating a new Job). To apply External Heading/Pitch/Roll data, select MicronNav from the top menu bar and select Job – Edit Job to open the Edit Job panel (as shown below - if this menu option is not displayed click inside the Navigation window first).
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To apply only External Heading data, whilst using Pitch/Roll from the Integral Sensor, select MicronNav from the top menu bar and select Job – Edit Job to open the Edit Job panel (as shown below - if this menu option is not displayed click inside the Navigation window first).
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Installing the System MicronNav System Step 2: Next, in the MicronNav USBL tab-page, ensure the Attitude Sensor drop-down is set to MicronNav100 Attitude Sensor. Step 3: Click on Save Exit to immediately update the Job and apply changes. The Integral Attitude Sensor Pitch/Roll will still be applied and the External Compass data input(s) will now be used in place of Integral Sensor Compass data.
3.2.9. Connecting optional third party Video Camera The MicronNav system can be configured to accept a Video Input from an external USB Video Adaptor receiving PAL/NTSC video from a composite source and display the video in a window adjacent to the MicronNav display. (e.g. select Sonar Nav Video or Nav Video from Applications menu list, or create a new Application with Video using the Application Wizard).
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Recording the Video The input video can be recorded alongside other device data such as Sonar and MicronNav. All device data is stored in the .V4Log log file. The video is recorded into a separate “.AVI file which is saved in the same root folder as the log file. The AVI file will be given the same filename as that of the log file.
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Selection of the correct codec will greatly reduce AVI file sizes. Microsoft Windows is bundled with several video codecs. Some of these have limited functionality and limiting performance. In tests with Seanet Pro by Tritech International Ltd the best performance was obtained with the Cinepak® codec (developed for Microsoft by Radius).
It is possible to receive tracked position strings from an external computer. These strings can be received through a COM port which is configured in Seanet Pro for Remote Beacon Input. The tracked positions can be displayed in the MicronNav chart, all operating alongside other device data such as Sonar and Video.
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For a mobile datum point such a ship, the ship GPS position can be input into the system, via an NMEA input string for example, and this tracked position also plotted on the MicronNav chart. If a fixed datum/reference point is to be used then it is coordinates must first be entered in the Job Setup after selecting Fixed Platform.
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(to create a new job navigate to MicronNav -> Job -> Create New Job). If a job already exists it can be edited instead. In the Job Setup, first select either a Mobile Platform (i.e., a ship) or Fixed Platform (i.e.
Modem Heads being used with the system - select MicronNav from the top menu bar and select Setup Application to open the Nav Setup panel (if this menu option is not displayed click inside the Navigation window first), then check the appropriate check boxes for the Heads to be addressed - i.e.
3.4.4. Optional third party Heading & MRU Check If using optional third party Heading and MRU sensors check the compass display at the top of the MicronNav window is present and updating and check the artificial horizon box is present and updating.
Prior to the system going in the water the Pre Dive checks should be carried out to ensure maximum reliability and performance from the system. Ensure the subsea MicronNav head has been mounted such that the transducer is proud of the ROV fairing with a clear view...
Job containing all the installation offsets between each part of the navigation system as measured in the previous section. Select MicronNav from the top menu bar (if this menu option is not displayed click inside the Navigation window first) followed by Job → Create New Job to open the ‘Job Setup’ window and Setup Wizard (if the Job Setup panel is too small to show the whole form then press F2 to maximise the MicronNav application).
Select MicronNav from the top menu bar (if this menu option is not displayed click inside the Navigation window first) followed by Job – Edit Job to open the ‘Edit Job’ window (if the Edit Job panel is too small to show the whole form, press the F2 key to maximise the MicronNav application).
It is possible to load up Jobs transferred from another computer or from an earlier Seanet Pro installation. Select MicronNav from the top menu bar (if this menu option is not displayed click inside the Navigation window first) followed by Job – Load Job to open the ‘Select the location of a job folder...’...
The following sections explain the parameter setup options for both Mobile and Fixed Platform operation. The ‘Edit Job’ / ‘Job Setup’ Page is used as reference which is a page opened from the MicronNav – Job – Edit Job menu to preview parameters in a current or previous Job configuration.
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Once the details have been entered on the Mobile Platform tab click the Save button to confirm the details and select the MicronNav USBL tab. Enter the previously measured installation offsets of the USBL Dunking Transducer and select the source of the Pitch and Roll data.
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If this tab has been edited click the Save button to confirm the details. Now select the MicronNav USBL tab page and enter the previously measured installation offsets of the USBL Dunking Transducer and set the Pitch and Roll data source to the USBL Dunking Transducer integral sensor.
Job Setup window. 4.1.8. Applying a Geodetic Datum Shift to the reference co-ordinates 1. In Seanet Pro, open the ‘Edit Job’ page by clicking on MicronNav in the program menu and selecting Job - Edit Job.
1000m, this should be selected appropriately depending on the distance of the ROV from the USBL Dunking Transducer. Note The normal max operating range of the MicronNav USBL system is 500m. The controls allow for a longer range should conditions permit. Interrogation Rate Control The interrogation rate of the system (i.e., time between subsequent acoustic transmissions)
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A bitmap can be created of any boat image and copied into the Seanet application folder. This will enable an option in the Chart menu to be able to display the boat image as the ship marker. The correct dimensions of the Ship must also be configured in the MicronNav job settings.
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Bow must be top centre, e.g. as follows: 4. The scaling of the boat image will be applied from the MicronNav Job settings. As the boat image is square then only one dimension needs to be used for the scaling and this is the ‘Length’...
MicronNav System 4.2.4. Other Controls These are selected by clicking on MicronNav on the Main Menu. If this option does not appear in a multi-window application, then first click on the MicronNav display to give it the focus and try again.
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(PPI display mode) of the MicronNav display If not this needs to be set to show by selecting MicronNav from the top menu bar followed by VOS → Use System VOS / Use Job VOS. When active, a tick will appear next to the selected option.
4.3. Logging and Replay Logging – The MicronNav data can be logged to the computers hard disk for replay at a later date. It is enabled by clicking the Log option in the top menu bar followed by Record from the sub-menu, the required directory and file name should then be selected/entered in the Log On panel now being displayed, clicking the Save button will begin the logging.
• The ellipsoid code to be used (if using UTM coordinates) • The UTM zone to be used (if using UTM coordinates) Open the Chart Editor by selecting from the Main menu, MicronNav – Charts – Add Chart. This will bring up the Create Overlay Chart editor.
If a Chart has already been created and added into the system, it is possible to make changes to this at a later date. To make any edits to existing charts, Open the Chart Editor by selecting from the Main menu, MicronNav – Charts – Edit Chart. 0656-SOM-00001-07...
6.3. Deleting a Chart Any Chart that has been loaded into the system can be removed by selecting from the Main menu, MicronNav – Charts – Delete Chart. The Chart to be deleted should then be selected from ‘Current Chart’ drop-down list.
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Ship Trail in the pop-up menu of Step 1 shown below. Procedure 1. In the MicronNav application, right-click on the chart window and select Sub Trail – Save Sub Trail. 2. Next, in the Save As dialog, enter a name for the output file and click Save.
MicronNav System 6.7. Load BSB Charts Seanet Pro V2.21 (build 494) onwards has the capability to import BSB charts for use with the MicronNav chart application. It will open any compatible Version 3 BSB chart with the .KAP file extension. Procedure 1.
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5. Once the page is populated from the cartographic information it is possible to make edits to the chart configuration at this point or at a later stage by selecting MicronNav - Charts - Edit Chart from the Seanet Pro menu bar.
7. Using the External Computer Data Link The MicronNav data can be made available for use by third party software packages running on an external PC and this section gives details on how to set this up. The external computer data link should be connected as detailed in Section 3.1, “Preparation”...
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Channel Setup’ page (‘Settings’ – ‘Channels’) and configure the Channel that was selected in the step above. 5. To use a Com port from the MicronNav Hub to output the REMV4 data proceed as follows. (The example below shows the MicronNav Hub Port A being configured for REMV4) 6.
MKII/MKIII Micron and SeaSprite DST Sonars and throughout this manual this is the Sonar referred to, it is possible however to operate the MicronNav with other Tritech Sonar in the same way as that detailed for the MKII/MKIII Micron and SeaSprite DST. The following list provides details on MicronNav compatibility with the other Tritech Sonars.
MicronNav System 9. Adding a Micron Echosounder When operating the MicronNav System in Responder mode in conjunction with a Tritech International Ltd Sonar, a Micron Echosounder can be added to the subsea installation. The Micron Echosounder is a sonar ranging device which mounted vertically gives altitude above the seabed or in any other attitude provides a subsea distance measurement (see Micron Echosounder Product Manual for further details).
MicronNav System 10. Adding a Micron INS A Micron INS can be used with the MicronNav System and full details of how to configure the two products together can be found in the Micron INS Product Manual (document reference: 0722-SOM-00001).
MicronNav System 11. Conversion Between MicronNav Responder and Transponder 11.1. Seanet Setup for Conversion Connect the MicronNav100 Hub to the USBL Transducer head and computer and ensure the communications link to the Transponder/Responder is disconnected from Port B on the MicronNav100 Hub.
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Conversion Between MicronNav Responder and Transponder MicronNav System in the SEAHUBNAV100 row followed by Setup from the drop-down menu that appears to display the SeaHub Setup page. Set Port B to RS232. Confirm the settings and close the SeaHub Setup page. After a few seconds, the reprogramming of the unit will be complete and "Node 90, Prog Cfg Done"...
Conversion Between MicronNav Responder and Transponder MicronNav System Switch off the power supply to the MicronNav100 Hub, connect the Transponder/Responder Main port to Port B of the MicronNav100 Hub. Position a magnet against the body of the unit as shown below and re-apply power to the system.
Conversion Between MicronNav Responder and Transponder MicronNav System confirm the settings and close the AM100 ModemCfgSetup page. After a few seconds the reprogramming of the unit will be complete and "Node 85, Prog Cfg Done" will be displayed in the status bar.
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Conversion Between MicronNav Responder and Transponder MicronNav System shots below, select Sonar Nav from the Applications menu (or Sonar Nav Video if video is also required). Click inside the tracking window to display the AMNav menu option in the main menu par.
Conversion Between MicronNav Responder and Transponder MicronNav System Confirm the settings and close the setup page. This completes the conversion to Transponder mode. Position the Transponder unit near the USBL Transducer will confirm operation and "Ping T1 ok" should be displayed at the top- right of the MicronNav window.
Conversion Between MicronNav Responder and Transponder MicronNav System Confirm the settings and close the AM100 ModemCfgSetup page. After a few seconds the reprogramming of the unit will be complete and "Node 85, Prog Cfg Done" will be displayed in the status bar.
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Conversion Between MicronNav Responder and Transponder MicronNav System Confirm the settings and close the SeaHub Setup page. Apply power to the Micron Sonar/ROV and once the sonar has initialised the Main Setup page should list three Node numbers in the table - the MicronNav100 Hub (SEAHUBNAV100), the USBL Head (MINIATTSEN) and the Micron Sonar (MICRON).
Conversion Between MicronNav Responder and Transponder MicronNav System At the bottom-right of the page is the Comms Mode selection panel. Set the Aux to RS232 and click the Baud Rates button at the bottom-left of the page to open the Comms Setup window.
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Conversion Between MicronNav Responder and Transponder MicronNav System Click inside the tracking window to display the AMNav menu option in the main menu bar. Select AMNav from the main menu bar followed by Setup App from the sub-menu to open the Nav Setup page.
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Confirm the settings and close the setup page. This completes the conversion to Responder mode. Positioning the Responder unit near the USBL Transducer head will confirm operation and Ping R0 ok should be displayed at the top-right of the MicronNav window. Note...
English alphabet. Short for "auxiliary". Bathy Alternate name for the Tritech International Ltd SeaKing 700 Series Integrated Oceanographic Sensor Suite which outputs data about the conditions of the seawater and water column which may have an affect on the sonar (temperature, depth, etc.,)
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MicronNav An Ultra Short Baseline (USBL) system for location and tracking of ROVs, divers, etc. Consists of the MicronNav 100 surface control unit (similar to the SeaHub but with different functionality) a "dunking transducer" which is mounted on the vessel/dockside under the waterline and a responder which is mounted on the ROV or Hammerhead tripod.
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(in RS232, RS485 or ARCNET) and converts it into a signal suitable for the USB port of the computer. SeaKing A specific sonar produced by Tritech International Ltd but also refers to the family of sonar equipment manufactured by Tritech International Ltd comprising of the SeaKing, SeaKing DST scanning and profiling sonars and the Hammerhead survey sonar.
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