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Nortek Signature VM, Руководство по эксплуатации

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NORTEK 

 

5.5  Track display  

 

Figure 23 Track display with track details 

The track display shows the track as sailed by the vessel, and recorded by the GNSS, in blue dots. The 
calculated track from the bottom track data is shown as red dots. Note that the background map may only be 
visible if there is a live internet connection since these maps are loaded form either Bing or Google maps. 

Clicking the round ‘< ‘ button on the right top of the map opens the map options menu. 

Содержание Signature VM

Страница 1: ...Signature VM Operations Manual N3015 026500 V 1 1 V 1 4...

Страница 2: ...Off 16 2 4 6 Connecting to the Computer 16 3 Acquisition Software 19 4 1 Checking the system 21 5 Measuring 25 5 1 Configuration 25 5 2 Start the measurement 27 5 3 Measuring and Display 29 5 4 Statu...

Страница 3: ...fields 45 8 2 5 Over the Side Mounting 46 9 Maintenance 50 9 1 Signature Sensor 50 9 2 Biofouling 50 9 2 1 Antifouling Paint and patches 50 9 3 Instrument Care 50 9 4 Connector Care 51 9 5 Cable Care...

Страница 4: ...appreciated If you find errors omissions or sections poorly explained please do not hesitate to contact us We appreciate your comments and your fellow users will as well Contact Information We recomm...

Страница 5: ...t plug the equipment power cables into an electrical outlet if the power cable is damaged To prevent electric shock plug the equipment power cables into properly grounded electrical outlets Do not use...

Страница 6: ...recorded using a high precision Global Navigation Satellite System GNSS receiver which also provides accurate timing By combining the measured movements from both the GNSS and bottom track it is poss...

Страница 7: ...le for download from our website The pressure sensor temperature sensor and LED light are all visible from the outside Note also the beam configuration with beam one pointing in the positive X axis se...

Страница 8: ...curate heading The built in PTP Precision Time Protocol server provides an accurate timing reference for the whole system The GNSS is powered through the Ethernet cable For more details on the GNSS Se...

Страница 9: ...ction is required for checking and possible downloads 2 3 Interface The Signature VM interface provides power to the Signature sensor and GNSS and has all necessary interconnections between the differ...

Страница 10: ...sor a GNSS and a computer The interface box contains all necessary interconnections and power supplies for the other parts Figure 6 Connecting the interface to the PC Note that only one ethernet port...

Страница 11: ...hould be applied to the female connector The inner edge of all sockets should be completely covered and a thin transparent layer of grease left visible on the face of the connector After greasing full...

Страница 12: ...To release the connector press the PUSH lever and gently pull the connector housing The standard Signature cable comes with a simple jack plug On the interface that power is supplied through a DC Powe...

Страница 13: ...clockwise until it clicks to lock It is a bayonet lock so it should not need more than a 30 40 degrees rotation This may take considerable force and it is best to use the supplied Connector wrench Fi...

Страница 14: ...14 NORTEK Figure 10 Connecting the GNSS to the interface...

Страница 15: ...GNSS connector is the main Ethernet port and a USB port which have to be connected to the Signature VM computer Figure 11 All interface connections Power to Signature Data to Signature Power and Data...

Страница 16: ...monitor the general idea is to use a remote desktop connection from a laptop Not supplied with the system Any computer that can run the Remote desktop client can be used to connect to the system Remot...

Страница 17: ...17 Now connect the client computer to the interface and then open Remote Desktop Hit the Windows key and just type remote desktop...

Страница 18: ...is SurveyVM You can now click Save As to save this connection for later Click connect If all is correct a popup will appear asking for the password The password is SurveyVM Once connected the screen o...

Страница 19: ...reen layout to defaults click on one of the four window recovery buttons in the lower left Clicking the appropriate button will bring up the related window or you can click Restore Layout to get back...

Страница 20: ...onnect the instruments Start Stop the measurement Instrument connection options Open a file for playback Start Stop playback Pause playback Playback options Start a new recording Recording details Sta...

Страница 21: ...P Address and Port box will turn grey and the button text will change to Disconnect Now click on Web page This will open the internal web interface page of the GNSS Sensor Instrument connection option...

Страница 22: ...a different location Also the antenna should have a real clear view of the sky to achieve a faster lock Refer to section 5 for details on mounting the GNSS antenna The map is only visible if the compu...

Страница 23: ...to select a specific deployment instead of the default one that comes with the software The example above assumes only one Nortek sensor is connected to the network If multiple sensors are connected...

Страница 24: ...ly Heading information is missing there might be a problem with the GNSS measurement due to bad environmental conditions When there is data but the data may be unreliable the indicators will go Yellow...

Страница 25: ...settings to check Setting Default Description Application Settings Display Units Metric Distance and speed on the screen in m s or Knots and feet Project theme Dark Display theme light or dark The pr...

Страница 26: ...Channel If multiple sources of navigation are available you can select a specific one here Not necessary if the system is only used with the standard GNSS Use magnetic sensor No Optionally use the mag...

Страница 27: ...s not compatible with the connected sensor the edit box will be marked red and the Start button will be disabled Setting Default Description Environment Salinity Sound Velocity 35 1500 Click on this f...

Страница 28: ...r is NOT recorded Select a frequency from the dropdown box to enable the echosounder Most Signature sensors only have one frequency available which is the base frequency of the sensors itself e g 1000...

Страница 29: ...ent speed and direction referenced to earth Vessel Velocity Through Water Speed and direction of the vessel relative to the water Bottom Track Vessel Speed and Direction over Ground as measured by the...

Страница 30: ...recorded by the GNSS in blue dots The calculated track from the bottom track data is shown as red dots Note that the background map may only be visible if there is a live internet connection since th...

Страница 31: ...heading according to the GNSS compass Show Bottom Track Show the course as calculated from the bottom tracking Show altimeter Show the depth at regular intervals Allow internet If a map is not alread...

Страница 32: ...abs in the Settings window Tab and Arrow Keys Move between settings Use Spacebar to toggle checkboxes Ctrl R Reset bottomtrack Re Align the bottomtrack with the vessel position on the Map Zoom in on t...

Страница 33: ...his indicates that there is no PTP Precision Time Protocol signal present This signal should come from the GNSS so this either may not be connected yet or the GNSS has not locked in to any satellites...

Страница 34: ...post processing without further consequences Figure 26 Signature and GNSS mounting offsets 6 1 Vessel Coordinate system As shown in the illustration there are three different coordinate systems that...

Страница 35: ...llustrate the GNSS orientation offset it shown here at 10 degrees as an example This offset should be as small as possible and only if it is not possible to get it exactly to 0 correct it in the softw...

Страница 36: ...eference we only have to enter offsets for the GNSS Figure 29 Offsets from the GNSS to the Signature In the example the Y offset from the Signature to the GNSS is 3 45 and the X Offset is 1 43 Since t...

Страница 37: ...eways which will give an incorrect direction of movement To adjust the offset open the Configuration and adjust the Heading Offset The correction will be applied immediately after pressing Enter or Ta...

Страница 38: ...will be applied immediately after pressing Enter or Tab Don t forget to click Save Configuration After changing the offset the direction of the bottomtrack line matches the direction of the vessel Cli...

Страница 39: ...age return and a line feed Data fields follow comma delimiters and are variable in length Null fields still follow comma delimiters but contain no information An asterisk delimiter and checksum value...

Страница 40: ...used N Reference Station Differential reference station ID 0000 1023 NNNN Example SDGGA 121816 244 5134 6213945 N 00405 4297275 E 0 00 0 0 10 0 M 0 0 M 7A 7 1 3 SDVTG Track made good and Ground speed...

Страница 41: ...41 PNORI1 4 123456 3 30 1 00 5 00 ENU 5B...

Страница 42: ...6 0 02 24 56 39 7 1 6 PNORCV Velocity data per Cell Field Description DataFormat Date Date and Time in UTC MMDDYY Time 0 24H 0 01 second resolution Hhmmss ss Cell Number Dd Cell Position Distance from...

Страница 43: ...th Field Description DataFormat DT1 Time from trigger to bottom echo NOT USED d ddd DT2 NOT USED d ddd Speed Over Ground m s d ddd Direction degrees true North d d Figure Of Merit dd ddddd Distance to...

Страница 44: ...em can tolerate some bubbles in front of the acoustic transducers but when the bubble cloud gets too dense the acoustic energy will be blocked and the profiling range will be greatly reduced Also bubb...

Страница 45: ...erpret and analyse the velocity data However a few degrees of tilt does not make a great difference in the accuracy of the horizontal velocity data 8 2 4 Ship generated flow fields All ships generate...

Страница 46: ...the survey Mounting systems that uses a separate towed catamaran or other towed body are not suitable unless the GNSS antenna is also mounted on the towed body The instrument may be supplied with an...

Страница 47: ...n the flange A 2 Route the cable and connect it to the instrument 3 Mount the instrument using the optional internal clamp B and the four bolts C 4 Attach to the flange 5 Finally mount the drop shaped...

Страница 48: ...her mounting considerations like the clear view of the sky or nearby radar It is not a huge problem if it isn t completely aligned but the closer the better The GNSS antenna comes with a stainless ste...

Страница 49: ...st put the nut and the plastic ring on the thread then screw on the antenna Point the antenna so it is in line with the ship s main axis and fix it in position using the nut Figure 32 Mechanical drawi...

Страница 50: ...ater be used to set regular maintenance intervals where the transducers are cleaned When the instrument leaves the factory the surfaces are quite smooth and it will take some time before any growth st...

Страница 51: ...also check the female connector Check that both connectors are dry If not let them air dry Inspect for damage corrosion and cuts Apply a thin film of Silicone grease Mate the connector halves and chec...

Страница 52: ...ware to the latest versions There may be incompatibility between an older version of firmware and newer version of software and vice versa The latest versions of firmware and software can be downloade...

Страница 53: ...nector might break Using a multimeter to ping through each pin may reveal a breakage 10 3 Power 10 3 1 Interface does not switch on First check the status of the fuses on the rear Inspect the fuses or...

Страница 54: ...IP address 192 168 100 1 This port is connected to an Ethernet switch inside the interface box and the sensors are connected to this switch An OpenDHCP server is running on the computer as a service...

Страница 55: ...bled and this is explicitly bound to the 192 168 100 1 address so it will only work if a computer is connected directly or through a switch to the SurveyVM Interface port Remote desktop is not possibl...

Страница 56: ...the serial number sticker 12 1 Filter setting Standard filter setting on the GNSS is Small Boat which is shown to work fine with most survey vessels Should the system be used on larger vessels it coul...

Страница 57: ...equires that the system is connected to the internet To test if it is working use the server at www rtk2go com port 2101 as shown in the example above This is a cloud service that provides free transf...

Страница 58: ...context it means using a more complex transmit pulse to improve the measurement accuracy in each ping Cell One measurement cell represents the average of the return signal for a given period The cell...

Страница 59: ...single transmit pulse Precision The value given is a theoretical estimate of the precision of the velocity measurements based on how the instrument is set up The nominal value is given for the horizon...

Страница 60: ...White 3 5 Tx White Orange 2 6 Tx Orange Orange White 1 8 pin connector Serial communication RS232 and RS422 N2550 001 Connector on the instrument side Pin number Function Wire color JointWire color Pi...

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