Moog Tritech Gemini 720is Product Manual Download

Page: 10 / 92

Gemini 720is Imaging Sonar

Document: 0703-SOM-00002, Issue: 7

© Tritech International Ltd.

2. Technical Specification

2.1. Gemini 720is

236

271

All dimensions are in mm, not to scale

Acoustic

Operating Frequency

720kHz, CHIRP selectable

Number of Channels

Angular Resolution

1.0° acoustic, 0.25° effective

Scanning Sector

120°

Number of Beams

512

Vertical Beamwidth

20° (tilted down 10°)

Range

0.2m to 120m

Scan Rate

5-30Hz (range dependent)

Range Resolution

8mm (range dependent)

Electrical and Communication

Power Consumption

25W max

Supply Voltage

19 to 74V DC

Aux Port Voltage

24V DC (±0.6V) at 30W max

Data Communications

Ethernet or VDSL

Additional I/O

RS232, RS485 (half duplex), TTL in, Ethernet

Connector types

SeaCon 55 series, SubConn FCR 15 series or Schilling

SeaNet

(single port as standard)

Summary of Contents for Tritech Gemini 720is

Page 1: ...Gemini 720is Imaging Sonar Document 0703 SOM 00002 Issue 7 1 Tritech International Ltd Gemini 720is Imaging Sonar Product Manual Document 0703 SOM 00002 Issue 7...

Page 2: ...ent 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 Tritech Internation...

Page 3: ...itan Impulse MKS W 307 FCR connector 16 3 3 9 Seacon 5506 1508 and Seacon 5506 1506 connectors 16 3 4 Surface Adapter Pin out Diagrams 17 3 4 1 Ethernet Adapter 18 3 4 2 VDSL Adapter 19 3 5 An Example...

Page 4: ...Automatic Online 59 5 8 Settings Files 59 5 9 Keyboard Shortcuts 60 6 Seanet Pro Installation 61 6 1 System requirements 61 6 2 Installing Seanet Pro 61 7 Seanet Pro Operation 64 7 1 Seanet Setup for...

Page 5: ...2 Software or firmware revision numbers 3 A clear fault description 4 Details of any remedial action implemented Contamination If the product has been used in a contaminated or hazardous environment...

Page 6: ...the current topic Important When this is shown there is potential to cause harm to the device due to static discharge The components should not be handled without appropriate protection to prevent suc...

Page 7: ...Standard option Dual Seacon 5506 1508 and 5506 1506 Schilling Seanet connector Gemini 720is Titanium units only Single Seacon MCBH8M Gemini 720is Aluminium units only Single SubConn FCR1506M Gemini 72...

Page 8: ...al Ltd supplied VDSL Adapter Unit takes the two wire VDSL input and bridges it to Ethernet for simple connection to a PC VDSL maximises the data rate by testing the quality of the connection at start...

Page 9: ...supply please refer to Section 2 1 Gemini 720is for more information 1 4 Software Version Note The instructions within this manual apply to the following software versions Gemini software 1 20 18 onw...

Page 10: ...c 0 25 effective Scanning Sector 120 Number of Beams 512 Vertical Beamwidth 20 tilted down 10 Range 0 2m to 120m Scan Rate 5 30Hz range dependent Range Resolution 8mm range dependent Electrical and Co...

Page 11: ...ted from the sonar body by either rubber or plastic strips or mounting brackets of at least 3 mm thickness and extending at least 3 mm beyond the clamp boundary to reduce any galvanic corrosion effect...

Page 12: ...MKS 310 FCR or MKS 307 FCR connector ensure that o rings have been fitted correctly to cables and blanking caps before use O rings should be inspected and replaced as part of a regular maintenance pro...

Page 13: ...es connector using Ethernet communications only Bulkhead view Pin Function 1 Ethernet RX 2 Ethernet RX 3 Ethernet Tx 4 DC 5 N C 6 Ethernet Tx 7 DC Ground 5 6 4 1 2 3 7 8 8 N C S11110 1000m or S11111 4...

Page 14: ...ng SeaNet connector S11112 4000m only Gemini 720is fitted with a Schilling Seanet connector using Ethernet communications Bulkhead view Pin Function 1 DC 2 DC Ground 3 Chassis 4 Ethernet Rx 5 Ethernet...

Page 15: ...thernet TX 7 DC Ground 8 1 2 3 7 6 5 4 8 CHASSIS 3 3 6 Single SubConn BH10M connector S11494 5 4000m S11495 10 4000m or S11586 20 4000m Gemini 720is fitted with a single SubConn BH10M connector using...

Page 16: ...emini 720is fitted with a single Titan Impulse MKS W 307 FCR connector using VDSL communications An auxiliary RS232 input can be fed into the sonar Bulkhead view Pin Function 1 DC Ground 2 DC 3 RS232...

Page 17: ...communications to an attached device A regulated 24V DC output is also available MAIN AUX MAIN Bulkhead view Pin Function Pin Function AUX Bulkhead view 1 Ethernet Rx 1 RS232 Rx RS485 B 2 Ethernet Rx...

Page 18: ...151 70 160 Sonar Head Connector Pin Function Diagram Photograph A Ethernet RX B Ethernet RX C Ethernet TX D DC E DC F Ethernet TX G DC Ground H DC Ground J not connected K not connected L not connect...

Page 19: ...L Adapter Not to scale dimensions in mm 130 151 70 160 Sonar Head Connector Pin Function Diagram Photograph 1 DC Ground 2 DC 3 not connected 4 VDSL 5 VDSL 6 not connected 1 6 2 7 5 3 4 7 cable screen...

Page 20: ...7 20 Tritech International Ltd 3 5 An Example Ethernet Setup Test or bench setup for the Gemini Sonar system using Ethernet communications via the Ethernet adapter unit Gemini 720is shown Computer Eth...

Page 21: ...002 Issue 7 21 Tritech International Ltd 3 6 An Example VDSL Setup Test or bench setup for the Gemini Sonar system using VDSL communications via the VDSL adapter unit Gemini 720is shown Computer Gemin...

Page 22: ...00002 Issue 7 22 Tritech International Ltd 3 7 An Example ROV Setup An example of connections for an ROV with the Gemini Sonar system using VDSL communications via the VDSL adapter unit Gemini 720is s...

Page 23: ...Gigabit speeds in order to be able to cope with the data Using the Gemini Hub Available as a separate item from Tritech International Ltd is a Gemini Hub which is capable of powering and communicatin...

Page 24: ...Requirements Minimum Recommended Processor 2GHz 2GHz dual core RAM 1GB 2GB Graphics 3D hardware accelerated graphics card Display 1280x1024 32bit colour 1600x1200 32bit colour Disk space Install is 2...

Page 25: ...cess Firstly the IP address of the computer is set to a value which will communicate with the head The Gemini software is then used to change the IP address of the Gemini The third stage is to reset t...

Page 26: ...on of the Gemini If the correct changes have been made to the Gemini it should now show as connected in the Gemini software If nothing is displayed check that all values entered were correct and it ma...

Page 27: ...The User screen allows the maximum amount of screen to be used for data display and the Advanced screen enables adjustment of the sonar settings 5 1 User Screen 5 1 1 Overview The 120 cone in the midd...

Page 28: ...Clicking the button a second time will stop communication with the head and the button and sonar cone will return to grey If the Online button is pressed while no heads are visible to the Gemini softw...

Page 29: ...ectory selector is the root directory where all recorded data will be stored Below that a directory will be created using the current date and each log data filename will include the time when recordi...

Page 30: ...The Stop button stops file replay and resets the play progress to the start Repeat Button If the Repeat button is active and the player reaches the end of the file it is playing it will return to the...

Page 31: ...er can be grabbed to change the replay speed quickly whilst the two arrows at the end of the slider can used to precisely control the replay speed The replay speed can be changed whilst the file is pl...

Page 32: ...that the replay will occur at approximately real time and it is not possible to change the speed of the playback during recording The generated file is stored in the Images sub directory of the log da...

Page 33: ...on based upon the range being used by the software Below 4 8M approximately the Sonar will disable CHIRP To override the auto mode and de activate the CHIRP function press the CHIRP button until it lo...

Page 34: ...n When the Zoom button is clicked a zoom window opens which shows the data around the mouse pointer in more detail as the following image shows Zoom box example with Gemini Sonar data If the Gemini un...

Page 35: ...and also to replayed data From left to right they are None Average Persistence and Movement There are controls on the advanced screen to change the setting for each of the filters and they are describ...

Page 36: ...r and dragging it left or right or by using the arrows at the end to change the range one step at a time The arrows are designed for fine control of the range and operate one step per click and clicki...

Page 37: ...ken from the display A single click on the cone will show the position of the click Clicking at one point on the cone and holding the left mouse button down whilst moving the mouse will give a measure...

Page 38: ...ransmit until the Online button has been toggled off then on Over temperature If the temperature sensors within the sonar detect that the internal temperature is too high an Over temperature warning w...

Page 39: ...tion from the Gemini Sonar or Sonars connected to the system More than one Gemini Sonar can be communicating at any one time and the Gemini software will display the images from up to a maximum of fou...

Page 40: ...te with the Sonar Note If the sonar is operating and Online has been selected then it will not be possible to change the ID until the sonar is taken off line Sound Velocity The Sound Velocity controls...

Page 41: ...mpression is on The Compression control sets the level applied by the run length encoding returns below this intensity percentage will be set to zero The live image displayed by the Gemini software im...

Page 42: ...e acquisition speed can also be useful if acoustic multipath is causing false moving transient targets to be observed in the sonar image Serial Inputs Data from external serial sensors can input to th...

Page 43: ...which Gemini log data will be written to For example this may be used to write to a backup location If both Primary and Secondary directories are specified a recorded log file will be written to both...

Page 44: ...efaults Pressing the Reset to Defaults button returns the software settings to the default values Caution should be taken as this will overwrite all user settings changes 5 2 4 Filter Settings The Fil...

Page 45: ...comes almost indistinguishable from the Persistence filter 5 2 5 Device Network Settings VDSL Settings The VDSL Settings drop down allows three different settings to be applied to the VDSL link in ord...

Page 46: ...lection dialogue Additionally for each marker the Cartesian coordinate is displayed in the Distance Marker panel The Distance Marker line width can be set by entering a value into the Marker Width fie...

Page 47: ...code options 5 2 7 Target Tracking Target Tracking provides a mechanism of highlighting objects and following their movement over subsequent sonar frames Once enabled targets will be automatically det...

Page 48: ...llow multiple targets Each right click will attempt to find a target and track it separately No position information is displayed when tracking multiple targets If the user changes from Multiple to Si...

Page 49: ...the intensity of their acoustic return A low value will cause the software to try and track an identified target even when the target is very faint Active Range Window and Active Bearing Window These...

Page 50: ...rimary target to be tracked The primary target is denoted by a small cross within the highlight box To change the primary target right click another highlighted target The cross will then move to the...

Page 51: ...nly display information about connected Gemini heads With Gemini Hub selected With COM Ports selected With Gemini Hub and COM Ports selected 5 3 1 Sonars Sensors The Sonars tab is for displaying infor...

Page 52: ...ode Can change between an ASCII decode binary decode or can echo the data on one of the other ports ASCII is the default input only the Simrad EM3000 uses a binary input Echo is used as an alternative...

Page 53: ...emini software COM Port The COM port to use Open the settings dialog for configuring the port baud rate data bits parity and flow control Mode Can change between an ASCII or binary decode ASCII is the...

Page 54: ...nto a selected COM Port that the software has been able to detect on the computer This option will hide the Mode Sync Decode Max Age Hz and String information Protocol RS232 or RS485 can be used on Po...

Page 55: ...is available Updating the firmware of the Gemini Sonar will improve the capabilities of the unit as well as allow access to new features and enhancements as they are developed Warning During the upda...

Page 56: ...booted the update progress window will remain visible until the Ok button is clicked Once fully updated the Update button will no longer be visible and when connected Online all the Sonar details will...

Page 57: ...e position or rotation of each sonar image is stored and recalled when the Gemini software is restarted The position of the sonar images can be altered using the text fields listed under Choose and po...

Page 58: ...td Note Turning off the range lines and text can improve the display In this case sonar 1 is looking forward while 2 and 3 are looking aft There is no overlap and each sonar is displaying a full 120 a...

Page 59: ...is allows unattended start up of the Gemini software and system This functionality can be disabled by adding the command line switch noautoonline to the command which starts the Gemini software 5 8 Se...

Page 60: ...e or rename the C GeminiData Settings Gemini xml file 3 Start the Gemini software 5 9 Keyboard Shortcuts A number of keyboard shortcuts are available for commonly used activities F7 Toggle Logging of...

Page 61: ...han 160GB recommended for log files Networking 100Mbit s 1 fast Ethernet 1000Mbit s 1 Gigabit Ethernet Software Windows XP 32bit Windows 7 32 or 64bit 6 2 Installing Seanet Pro Seanet Pro is supplied...

Page 62: ...Image Tiler this option installs an additional software package that can mosaic sonar imagery from Seanet Pro onto background images Note Do not attempt to remove the CD ROM from your computer during...

Page 63: ...720is Imaging Sonar Document 0703 SOM 00002 Issue 7 63 Tritech International Ltd Note In order to correctly run the Gemini head on a SCU the SCUv5 or later is required Contact Tritech International Lt...

Page 64: ...Click on Gemini LAN from the Setup menu This will open the Gemini Setup page Gemini Setup Network Enabled Ensure this box is ticked to load the Gemini Connection DLL and start the Gemini Network The...

Page 65: ...Seanet Setup Node Table The Status column will indicate the current state of the Gemini unit that has been detected A Status of OK means that the unit has the latest firmware and is immediately availa...

Page 66: ...h the Tools menu in Seanet Pro Note that for the Gemini 720is only the Triggered mode is supported VDSL Rate Adaption The Seanet Pro software allows three different settings to be applied to the VDSL...

Page 67: ...onar display is very similar to the standard Sonar display used for Tritech International Ltd mechanical sonar heads such as SeaKing and SeaPrince However the Gemini Sonar has a sector width of up to...

Page 68: ...this option to select the sonar ID to display on the main screen the drop down list will display the ID of all the Gemini sonars currently connected 8 Sector Center RAT C4 sets the center point around...

Page 69: ...y Cursor Adds the cursor position panel to the sonar display Figure 7 1 The Polar check box changes the output display co ordinates from Polar Range Bearing format if enabled to Cartesian X Y format i...

Page 70: ...Markers that can be implemented A B C D E F G H The operation of each set is the same as A B described above Display Figure 7 4 Sets up sonar display options DispMax Tick to expand sonar display vert...

Page 71: ...USBL Position Updates If a USBL input is active select this option A Heading input will also need to be active for the Geo referencing to be functional From Marker Positions This function requires an...

Page 72: ...r data as well as position and heading data for the position co ordinates to be reported Aux Compass Selecting Aux Compass will place a compass and pitch roll display on the sonar screen The data whic...

Page 73: ...ither 10Mbit s 1 or 100Mbit s 1 For VDSL this will be a rate that may be adapted according to the VDSL Rate Adaption setting for the Normal setting the optimal Link Speed will be applied Packet Droppe...

Page 74: ...ed on the Manual VOS applied in the Environment e g click on Settings Environment in Seanet Toolbar Note The Gemini Sonar will apply Manual VOS in steps of 3 2m s 1 starting from the minimum limit of...

Page 75: ...option in order to provide a higher resolution picture at that point If Seanet Pro is recording a logfile this additional data will be recorded alongside the normal imagery data Zoom Setup Size This s...

Page 76: ...EMV4 icon on the system tray and double click it to show the main window From the Applications drop down menu select Aux Device Output The Aux Device Output window will now be visible The Port A or Po...

Page 77: ...unit is annually serviced and can be returned to Tritech International Ltd for this purpose Although the Gemini range is not field serviceable regular care and maintenance of the unit should be carrie...

Page 78: ...ally inspected for any salt deposits and cleaned as appropriate Note To reattach the cover simply reverse these steps Caution Do not deploy the Gemini without the cover being attached to the unit It i...

Page 79: ...network administrator for advice if the sonar is connected to a network where disabling the firewall would present a security risk Sonar goes offline while operating on deck The sonar head outputs hea...

Page 80: ...reduce the ping rate slightly but the link will be more reliable in the presence of noise Check all connectors on the VDSL twisted pair poor contacts have been known to cause this issue Ethernet Syst...

Page 81: ...t Menu select Control Panel From the Control Panel Explorer window that opens double click on Network Connections From the list of available network connections that opens double click on the Ethernet...

Page 82: ...ech International Ltd Make a note of the settings as currently used by the computer these will be needed to restore the computer to any existing network Refer to the appropriate section of this manual...

Page 83: ...the sequence for other operating systems will be similar All screenshots are from a Windows 7 installation Disconnect the computer from any existing network First click on the Start Menu and select C...

Page 84: ...rties dialog should be displayed Find the entry labelled Internet Protocol Version 4 TCP IPv4 select it and then click on the Properties button In the properties dialog which opens there will either b...

Page 85: ...of the Gemini has been entered at the top of the screen the details for the new IP address can be entered Three items need to be entered the Device ID to ensure that the correct Gemini is being altere...

Page 86: ...sing panel on the right hand side update New IP Address and or New Subnet Mask The text box background colour will change from white to red to indicate a change has been made as shown below Once these...

Page 87: ...03 SOM 00002 Issue 7 87 Tritech International Ltd IP Address for details of how to do this Once communication has been re established the following screen shows the sonar is connected Returning to Gem...

Page 88: ...apable of handling input from various different types of sensors using the following standard strings Depth strings Name Description Format Examples Digi Parascientific Digiquartz depth sensor 000 0 S...

Page 89: ...PR Heading Heave Pitch Roll HEHDT PHTRH OctansHead Heading HEHDT OctansLinear Heading Heave Surge Sway HEHDT PHLIN Octans Std 2 Heading Heave Pitch Roll 00000 0000H 0000 0000F Simard EM3000 Heading He...

Page 90: ...is capable of outputting different data strings depending on the requirement of the user Target tracking strings Name Description Format Examples PTRITAR Basic target tracking output string Gemini 72...

Page 91: ...rking technologies for local area networks LANs GB Gigabyte 1000MB Gemini Unless specified this can refer to any of the multibeam sonars in the Gemini range by Tritech International Ltd such as the Ge...

Page 92: ...ta that have the same value are stored as a single datum point and count ROV Remotely Operated Vehicle RS232 Traditional name for a series of standards for serial binary data control signals RX Receiv...

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