icListen Operations Guide
Contents
1. 33 i BE AD c dede de a rp aa ia po 34 14 4 USB cable to icListen LF w battery and Sync ns 35 14 5 Iclisten LF Ethernet Iter face patan on de a UU Cu Pn ip os 36 MECC a a ana a a ol di 37 14 7 IcListe LF Shorting JUMDET toya savon kk le kok ak eH FEX PEE a k k bk kk ba pak aa tUe 38 14 8 1ELISten HF Shorting da a kaki ka n kak bk kk kak el kk Ue e ka a a VES ake sok bos Fake 39 15 Recommended COnNeECtO Street ol it e et tt e et ba l MA ee 40 Ocean Sonics icListen Operations Guide O August 2013 iii Table of Figures FOURE LOUIS ESE SANN MYE t 1 2 1 TENIS LEN da aa ae as ea ee ae tue si AN 2 222 rei a a ske ki on nn bo ba ep bite 3 BU 2 3 voit bale kan a ci kak kn nd ak of ik kata ola ate aaa sote nina 4 EUR FOLIE L T FA E da a e l nap l ek ban kn pk oi n e e ai en ie yan oak 5 Figure 3 1 Lucy USB RS232 connection diSplAY ivveeeeeeeeooeooooooooooooooooooooeneoooooeoeoeoooooooooooooononnosooeeeeeeeeeoeeee 6 Figure 3 2 Lucy Ethernet connection display sise 7 ee 355 WON AE Seen 7 Figure 3 4 Lucy example display 8 Figure 4 1 LUCY main display kk ae aw a doi Quse2. _ BRN WHT aw BLK WHT Sw vt J VE Figure 14 5 Subconn MCIL8F female face Figure 14 6 USB pin positions Figure 14 7 Charger connector Figure 14 8 Sync wires Ocean Sonics icListen Operations Guide O August 2013 35 14 5 icListen LF Ethernet Interface Figure 14 9 Subconn MCBH8M male face icListen Operations Guide August 2013 36 14 6 Ethernet Cable 2 com mu m ow 6 4 Te WH GN _ s m om 2 6 Re 1 7 oc wmn s RJ 45 Pin 4 Figure 14 10 Subconn MCIL8F female face Figure 14 11 RJ 45 Pin positions Sonics icListen Operations Guide August 2013 37 14 7 icListen LF Shorting Jumper To run icListen LF in battery mode a shorting jumper is used to connect the power pins to the battery voltage Wire Colour Figure 14 12 Subconn MCDCSF female face Ocean Sonics icListen Operations Guide O August 2013 38 14 8 icListen HF Shorting Jumper To run icListen HF in battery mode a shorting jumper is used to indicate that the unit is running on battery The icListen HF shorting jumper can also be used with the icListen LF but newer icListen HF units require the configuration below to take advantage of all power management functions 6 8 Not Defined
3. go 1 1111 LI LL E HERE AGE d CO a LE LL LI I A NE ia iii TEE E 0 1 1 10 100 1000 1x10 Frequency Hz Maximum Detectable Signal Minimum Detectable Signal Dynamic Range dB Instrument Resolution and Sensitivity 1000 EE 160 L I LLLA entr LI DIDIT AN 11111 ANN 0 1 1 10 100 1000 1x10 Frequency Hz Converter Output Scaled Output dBV Figure 12 1 Noise response at 4 kHz sample rate icListen Operations Guide August 2013 dBV re 1 pPa 30 12 2 Response at 250 Samples sec The following charts show the icListen LF performance for its default sample rate of 250 Samples sec Note that the bandwidth at this sample rate is 100 Hz Sound Pressure dB re pi Pa Counts 1 mPa icListen Signal and Noise Limits TT IC DL tty 240 200 ia 4 4 RER 9 maine LL 0 0 1 l 10 100 1000 1x10 Frequency Hz Maximum Detectable Signal Minimum Detectable Signal Dynamic Range dB Instrument Resolution and Sensitivity MAN Frequency Hz Converter Output Scaled Output dBV Figure 12 2 Noise response at 250 Hz sample rate icListen Operations Gu
4. Figure 14 10 Subconn MCIL8F female 37 Figure 14 11 R45 Pin n l epar En e tac ead sad co A cet 37 Figure 14 12 Subconm MCDGSF female AC n at tuse Eis 38 Figure 14 13 Subconn MCDC8F female 39 Figure 15 1 Subconn MCBH8M male 40 Ocean Sonics icListen Operations Guide August 2013 IV 1 Overview This guide covers the use care troubleshooting and wiring of the icListen Smart Hydrophone The concept of the icListen Smart Hydrophone has been in development since 2005 Smart Hydrophones take the work out of gathering acoustic data in the ocean They supply data in real units processing it as needed before it is stored or sent to the operator These hydrophones are ideal for a range of passive acoustic applications such as e Environmental assessments of underwater acoustic noise Monitoring for marine life including sea mammals and spawning fish e laboratory reference hydrophone Locating sound sources such as malfunctioning equipment or flight data recorders e Locating leaks in underwater pipes and identifying machine noises Users communicate with icListen Smart Hydrophones through a PC program called Lucy This program lets users view instrument data in real time retrieve and play stored data and perform housekeeping functions such as chec
5. which can prove to be useful for analysis For more information on the WAV file format and the additional information provided in the LIST chunk please refer to the icListen Log File Formats document Data from an icListen HF can be retrieved using SCP or SFTP over port 22 using a program such as FileZilla The username is icListen and by default there is no password Files can also be retrieved from icListen HF through data page of the web interface in software release 15 or newer Files may be retrieved from icListen LF over the communications channel using Ocean Sonics Lucy Ocean Sonics icListen Operations Guide O August 2013 10 5 1 3 Gain All icListen models are capable of applying gain to the waveform data Applying gain affects the dynamic range of the instrument by increasing the minimum amplitude signal which can be detected by an instrument and decreasing the maximum amplitude signal which can be measured by the instrument This behavior makes increasing gain desirable in quiet environments where important information could be otherwise lost but undesirable in loud environments where data would be lost due to clipping of the signal if gain were applied icListen LF applies gain to waveform data in hardware while icListen HF applies gain in software to 16bit data only icListen HF supplies waveform data in 16bit or 24bit formats and makes use of gain to allow access to the low 8bits of data which would otherwise be l
6. IVa SUC SE e r ke 24 9 4 CONECTO A 25 9 5 e f tin 25 9 6 Long Term Deploy MEn mE 25 10 Troubleshooting CESSE n kaba ke it e a e Tom 26 10 1 Instrument not 26 10 2 need to find out the icListen firmware version and serial 26 10 3 The information displayed on the web interface is blank or not updating 26 10 4 l m starting to miss data in my icListen HF WAV logs 26 10 5 can t connect to my Ethernet icListen s IP address UV 27 11 Functional Block DIAG PAM se kad li aj ren eek oak abako kebek pip beke Said err ee 28 12 NMSCEFUMENt PEON a CC ao aksan ta ola A kk ep sp F a pk pa ao GM 29 1211 Samples ik tata at li aj bl a a an 30 12 2 Response at 250 31 13 Options and 32 Ocean Sonics icListen Operations Guide August 2013 ii 14 Tables TOF IC LIS EOD pitye kat ankb e pub Ter a paka tk S ae a ak ns ne FC akeri vent ce eue 33 14 1 USB Inter ACC twb ii an Doi kita tn a lala RUMP vena a Be a ue 33 142 HF Ethernet layo ee e pu in Ba pe pl l ek ik ki a ERA ni in A
7. capable of transmitting real time waveform data and storing this data for later analysis as well All icListen smart hydrophones can convert incoming data to power spectrum frequency data This data can be processed in different ways transmitted in real time stored or used to trigger different effects in Epoch mode In icListen HF waveform data can either be streamed or logged Spectrum data can be collected through command and control streamed or logged but not streamed and logged simultaneously 5 1 Waveform Time Domain Data Waveform data represents the raw signal detected by a hydrophone Acoustic data is converted from analog to digital where it can then be processed by icListen 5 1 1 Real Time Data icListen LF and icListen HF are capable of transmitting real time waveform data to users using software such as Lucy Along with the digital waveform data icListen will also transmit information on how the unit was configured when the data was collected and scaling information which can be used to convert the received numbers to voltage or pressure measurements 5 1 2 Stored WAV Data Waveform data may also be stored by icListen LF and icListen HF in standard uncompressed WAV files This makes data recorded by icListen readable by many third party sound editing programs and analysis tools as well as by Ocean Sonics Lucy software In addition to the waveform data icListen will store additional metadata in the WAV file s LIST chunk
8. epoch setups as per the survey requirements Click the apply button and check the Lucy status line to ensure that the setup was accepted 8 On Lucy s Link Panel click the Open Webserver button to open the icListen s browser page 9 Ensure that previously recorded data on the icListen has been archived Navigate to the Operations tab Log in to enable the operation buttons Press the Clean Data Partition button and accept the confirmation popup Allow up to 5 minutes for reset and data clearing to complete Do not remove power until startup is completed 10 Navigate to the Settings gt Data Collection tab Verify that all data collection settings match the survey setup 11 If the unit must be powered off before deployment disconnect the power adapter from the test cable and press the Power Down Reset button on the Operations tab of the web interface Note that in order for the unit to start again external power will need to be applied 12 Disconnect the test cable from the PC and icListen and connect the dummy plug or external battery to the icListen icListen is now ready for deployment Ocean Sonics icListen Operations Guide August 2013 22 9 Careand Maintenance To get the best performance and longest service life possible out of your icListen it is important to properly care for and maintain your unit Here are a few things which should be remembered when using your icListen 9 1 Firmware
9. format e Waveform data in WAV format with meta data stored in file header e Monitors internal temperature and humidity e Monitors battery charge state as of hardware rev 2 e Indicates startup shutdown through buzzer patterns as of hardware rev 2 e Seconds can be aligned to falling edge of PPS as of hardware rev 2 e Maximum depth 3500 meters e Size 45 mm dia 230 mm long excluding connector e Depth rating 200 or 3500 meters Figure 2 4 icListen HF Ocean 1 Sonics icListen Operations Guide O August 2013 3 Quick Start Bench Setup It is important to test the Smart Hydrophone when it is first unpacked and before each deployment for best results The hydrophone works in air well enough to provide a good functional test Arrange a work surface large enough to hold the hydrophone cables and the PC used to run the Lucy software 3 1 Checklist 1 Hydrophone to be tested note its serial number 2 A PC ideally the same portable one used to deploy the hydrophone with the Lucy software previously installed Ensure the PC has a suitable data port interface for the icListen instrument 3 2 Steps 1 Start up the Lucy program on the PC 2 Connectthe icListen to the link cable and the data link to the PC 3 Click the Link Setup button in the lower right In the popup window select the appropriate connection type To find your icListen click Find All Units To connect double click the unit from the found
10. how long the action lasts after the triggering signal disappears Finally there is the resulting action which is the action icListen takes when triggered The actions available to icListen LF are sending a signal pulse logging data or preparing data to send when scanned The actions available to icListen HF are sending and logging trigger detail messages and logging data icListen HF begins logging triggered data at the top of the second at which an event was detected while icListen LF begins sending or logging data immediately after the event is detected Note Different events can have different result actions Ocean 1 Sonics icListen Operations Guide August 2013 15 5 4 Start Time and Duty Cycling icListen HF can be configured to start logging data at a specific date time Configuring a start time allows a deployment to be set up well in advance of an actual testing monitoring session without unwanted data being logged during this time Until the start time has been reached no internal logging of either waveform WAV files or frequency spectrum TXT files will be logged but data can still be streamed live from the instrument When storing waveform data icListen HF can also perform duty cycling to reduce the amount of data logged internally The active idle portions of the duty cycle can be configured with 1 minute resolution and the first active phase of logging will begin when the configured start time has been reached O
11. is visible 7 changing data display is seen the hydrophone is ready to put in the water Events will show up on the display approximately 1 second after they have occurred See the following display for an example Ocean icListen Operations Guide O August 2013 7 Figure 3 4 Lucy example display Note that if the Enquire button returns a red message there may be a link problem Check that connections to the hydrophone and PC are correct If the instrument requires external power RS 232 or Ethernet ensure power is supplied to the instrument See the Troubleshooting section for more if the problem persists Ocean Sonics icListen Operations Guide August 2013 8 4 Using the Lucy Software 4 1 Overview The software used to talk to the icListen hydrophones is a PC program called Lucy It presents data to the operator in a graphical and numerical format The interaction of the software has been designed for field operations personnel making it simple to use once configured Figure 4 1 Lucy main display Please refer to the Lucy User s Guide for instructions on operating the Lucy software Ocean Sonics icListen Operations Guide O August 2013 5 Processing in icListen One thing that makes icListen hydrophones smart is their ability to process data Several types of processing are available to icListen devices all of which add value to the data icListen is
12. 4 ENN 6 5 Figure 14 13 Subconn MCDCSF female face icListen Operations Guide August 2013 39 15 Recommended Connectors The following table lists all the connectors used by icListen Please ensure you check the number of pins and the connector gender before ordering connectors or whips from another vendor All listed are rated to 3500 M depth Bulkhead Male MCBH8M 70599 MCIL8F 8 MCDC8F 16 MCDLSF 86 0 9 O3 5 4 Figure 15 1 Subconn MCBH8M male face Ocean Sonics icListen Operations Guide August 2013 40
13. FT data sets or configured to reset the detected peak value only when data is retrieved from the unit For icListen HF this must be configured as a set number of FFT data sets reset when retrieved mode is not available 5 2 4 4 Filtered This form of processing performs infinite impulse response IIR filtering on the power levels detected at each frequency The type of filter used is an exponential moving average The weighting of the average as well as how frequently the icListen will transmit results are both configurable in this mode This has the effect of smoothing new data with the previous FFT results The filtered data for each frequency is calculated as follows ol 2 LJ i j N Where N Weighting Factor Signal Power of frequency bin C FFT Coefficient i Frequency Bin Number j FFT Data Set Number Ocean Sonics icListen Operations Guide August 2013 14 5 3 Epoch Mode In Epoch mode icListen can be configured to detect specific signals in the real time data and perform a number of tasks based on those signals An icListen can check the data for 5 independent triggers as shown in the following figure Test Er Clock Frequency band Energy threshold Minim duration Figure 5 4 Epoch Triggers Epoch triggers consist of 3 settings The first setting is the signal conditions required to activate the trigger This is called the test Secondly there is the hold which is
14. Lucy software Data can also be synchronized to the falling edge of a pulse per second PPS signal allowing synchronization between multiple units PPS synchronization is not available on icListen HF hardware release 1 6 5 Network Discovery In order to make finding your icListen device on a network easier some network discovery protocols have been implemented on Ethernet units icListen LF Ethernet models have UPnP Universal Plug and Play enabled while icListen HF Ethernet modules make use of Ocean Sonics Marco Polo protocol to discover IP addresses 6 5 1 UPnP Universal Plug and Play UPnP is a set of networking protocols which allows a device to automatically be discovered by any computer which has UPnP services enabled on the same subnet as the device UPnP is enabled by default on Windows 7 and Vista and UPnP devices can be found under Network When UPnP is enabled on Windows XP UPnP devices can be found under My Network Places UPnP is not enabled by default in Windows XP visit support microsoft com for details on how to enable this feature Ocean Sonics icListen Operations Guide O August 2013 18 6 5 2 Marco Polo A pair of programs Marco and Polo are used to discover icListen HF units on a network Marco is the application used by the end user on a PC which scans the network for devices while Polo exists on the icListen unit and responds to messages from Marco Using Marco a unit can be discovered on a local ne
15. Updates Occasionally Ocean Sonics may provide firmware updates for icListen The firmware for icListen LF is updated over the command and control communications channel and can be done using Ocean Sonics Lucy For more detail on this update procedure please refer to the Lucy User s Guide Updates for icListen HF are applied using the SCP or SFTP protocols WARNING Applying firmware updates to icListen HF will cause all logged WAV and TXT data to be erased from the instrument Programs such as FileZilla may be used for this The update file will be named icListenUpdate icu with replaced by the release number of the update and may be applied using the following steps Power the icListen using the power adapter do not power from battery Connect to the icListen via SFTP or SCP on port 22 The login is icListen and there is no password 3 Once connected you should see a directory called update If this directory does not exist create it This directory name is case sensitive Upload the update icu file into the update directory Disconnect from the icListen SFTP SCP connection Connect to the icListen via a web browser by entering its IP address into the address bar Once on the web page go to the Settings page Click the Power Down Reset button and confirm that you want to reboot ope Id ns Allow approximately 5 minutes for the update to complete 10 Reconnect to the icListen via your web browser an
16. a Spectral analysis of data is optionally performed in the instrument and can be averaged to reduce the quantity of data transferred or stored Ocean Sonics icListen Operations Guide August 2013 2 2 2 Feature Summary Ocean Sonics Frequency Range LF 1 0 to 1600 Hz can be extended to 6400 Hz Low power less than 100 mW Can be battery powered Supplies real time data when connected to a PC Event detection up to 5 bandwidth configurable triggers Stores up to 32GB in autonomous mode Can process data in real time Data Format Waveform in WAV format Processed in FFT format detailed in the icListen Log File Formats document Monitors internal temperature and humidity Seconds can be aligned to falling edge of PPS Maximum depth 3500 meters Interfaces RS232 RS485 USB or Ethernet Flexible power input requirement for Ethernet and RS232 RS485 12 24 VDC O USB requires 5 VDC Small size 42 mm dia by 250 mm long 1 65 by 9 8 Figure 2 2 icListen LF icListen Operations Guide August 2013 2 3 HF High Frequency The icListen HF is the newest Smart Hydrophone It combines high signal integrity data storage capacity low power and small size with the ability to process sound data in real time The icListen HF can be used in a tethered mode or as an acoustic data logger In tethered mode real time waveform or spectral data can be continuously streamed to a host PC running the Luc
17. al Features Of NE r a ka kk ako ond ki a Eee kk ai ek 17 6 1 Temperature and Humidity tk ni a bo a anne ki data cale teen dise ose en ae 17 Ocean Sonics icListen Operations Guide O August 2013 6 2 Battery Monitoring wou at ri a e ka bk ba CH MU a EScOV RM OPE eR kk DN kite kis ia sti 17 6 3 18 6 4 Tibe 18 6 5 NetWork DISCOVET Y ket mete t iben ia bu ti ba ie e ke l ja e e a n ones fo ak 18 6 5 1 UPnP Universal Pl g apati bitrate rend Bade dues steer ak tale tan o 18 6 5 2 SEC 19 2 MOBS koki e ti mmc 20 7 1 i Listen LF Data Retrieval pk at se pon e kk AA pa pk kk kle 20 7 2 icListen HF Data Retrieval 20 8 Standard Operation Procedures 50 5 21 8 1 Autonomous icListen HF Data Logger Data Recovery 21 8 2 Autonomous icListen HF Data Logger Deployment ss 22 9 and Maine MAN CG kte bas eleksyon n ta one kk Ser aun e e serit die ne contente 23 9 1 ENN UI DA A F eas a ka an an tb e 23 9 2 FIE SYSTEM CHAPE vwa laa ae san al bi 24 9 3 PROT
18. cean Sonics icListen Operations Guide O August 2013 16 6 Additional Features of icListen icListen also contains some additional features that can aid with troubleshooting deployment and operation of the device These features include monitoring temperature and humidity measuring battery charge state producing buzzer patterns to indicate power up down of the unit and network device discovery options for Ethernet icListen devices 6 1 Temperature and Humidity Temperature and humidity values are continuously measured internally in all icListen models The internal temperature of an icListen will generally be slightly warmer than the outside temperature more so when the unit is out of water It can be useful in determining if there have been any temperature shocks experienced during testing Rapid changes in temperature can result in a DC offset being introduced to waveform data In some cases the offset can be great enough to clip max out the data This effect is expected and temporary and knowing the temperature changes that the device experienced can help in determining if this is occurring The relative humidity reading can be used to determine the seal quality of the instrument A humidity reading of 5096 or lower is acceptable If the reading is higher than this it may indicate that there is a leak in the seal Contact Ocean Sonics if the humidity is higher than 8096 6 2 Battery Monitoring As of hardware release 2 icLis
19. covered to ensure you are communicating with the right unit 5 Open icListen HF Setup tab on the setup panel in Lucy this can be done by pressing the Job button in the lower right section of Lucy s main panel 6 Set Waveform Data Mode and Spectrum Data Mode both to Disabled Click the apply button and check the Lucy status line to ensure that the setup was accepted 7 Pressthe icListen button in the Files section of Lucy s main display 8 Download and archive all logged data all txt and wav files 9 The data on the instrument may now be cleared On Lucy s Link Panel click the Open Webserver button to open the icListen s browser page Navigate to the Operations tab Log in to enable the operation buttons Press the Clean Data Partition button and accept the confirmation popup Allow up to 5 minutes for reset and data clearing to complete Do not remove power until startup is completed 10 If the unit must be powered off for storage disconnect the power adapter from the test cable and press the Power Down Reset button on the Operations tab of the web interface Note that in order for the unit to start again external power will need to be applied 11 icListen is now ready for storage or battery recharging Ocean Sonics icListen Operations Guide O August 2013 21 8 2 Autonomous icListen HF Data Logger Deployment This procedure is used when deploying icListen HF as a data logger In this setup the icLi
20. d by entering the IP address of the icListen into a standard web browser such as Internet Explorer Firefox or Chrome On the web page click data and follow the instructions present on the page Ocean Sonics icListen Operations Guide O August 2013 20 8 Standard Operation Procedures SOPs The following procedures help to minimize the chance of human error while using icListen These procedures have been designed for use with Ocean Sonics Lucy software 8 1 Autonomous icListen HF Data Logger Data Recovery This procedure is used when retrieving data from an icListen HF deployed as a data logger Upon retrieval the icListen should contain stored WAV and or TXT log data This procedure requires access to e AnicListen HF retrieved after survey has been completed APCrunning Ocean Sonics Lucy software v3 6 or newer and any web browser e AnicListen HF test cable and power adapter Procedure 1 Connectthe test cable to the PC and icListen connect the power adapter to the test cable and mains power and wait approximately 1 minute for the icListen to start up 2 Onthe PC start the Lucy software and open the Link panel by pressing the Link Setup button on the lower right area of the window 3 Select Ethernet as the connection type Use the Find All Units button to locate your icListen and double click on it to connect 4 Verify that the displayed serial number matches the number on the icListen being re
21. d check that the Release number indicated on the home page matches the provided update You may need to hold Ctrl and press F5 to ensure that the information displayed is not old information from your browser s cache the refresh button on the browser generally does not guarantee this Ocean Sonics icListen Operations Guide O August 2013 23 9 2 File System Care To maintain optimal performance Ocean Sonics recommends that logging be disabled and all files be cleared from the system when the instrument is not in use This will prevent accidentally deploying an instrument that has no storage capacity remaining For icListen LF files can be cleared by deleting them using the file utility provided by Lucy icListen HF is capable of storing data collected at much higher sample rates than icListen LF so an additional Clean Data Partition function has been implemented in order to maintain optimal logging performance The cleaning function can be accessed via the web interface This function deletes all logged files and formats the data logging partition for optimal performance Ocean Sonics recommends using the Clean Data function before any major deployments where logging is to be used 9 3 Retrieval and Storage When your icListen is being retrieved it is important to rinse off the unit with fresh water This will avoid corrosion and keep salt crystals from forming on the connectors Failure to do this could result
22. icListen Operations Guide August 27 2013 Ocean Sonics Ocean Sonics Ltd Hill House 11 Lornevale Road Great Village NS BOM 110 Canada Phone 1 902 655 3000 www OceanSonics com Table of Contents CON KEN Ttc Fable ol PIBUF IMS iV EEG a 1 BMS Or NO LIS L mU 2 2 1 LF LOW SOON da eee D be dd 2 2 2 Lr SON INN S Y tie io ee ehe epu Ce po UN ele PIOS ME 3 2 3 HE ANBA EE latet kt 4 2 4 HP Feature SUMINA 5 S D a i to 6 3 1 CRE 6 3 2 OD 6 4 Usingthe Lucy Software 9 4 1 eau ee 9 5 OCS SS ATOS COR eem 10 5 1 Waveform Time Domain DA Eds a a la ta ao ki ob te Da ata 10 5 1 1 RMS DI its tp evit kit es at IR 10 5 1 2 Orca NAND a EA 10 5 1 3 CI DM IT TU 11 5 2 Power Spectrum FFT D RT 12 5 2 1 RE Nm Rc 12 5 2 2 orea FETO I eE a ao tl a a 12 5 2 3 OR ea 12 5 2 4 FFI Processing OPTIONS e ank kaka katsan kask anlo n kk mar Dl tak DAS s n ti V PES REN a an e 13 5 3 EOC NI vwati padi veri TT 15 5 4 Stari Time and Duty VOIR its 16 6 Addition
23. ide August 2013 dBV re 1 pPa 31 13 Options and Configurations The configuration options for icListen LF are listed in the table Tethered Mooring with battery Autonomous with internal battery The configuration options for icListen HF are listed in the table Male 8 pin bulkhead Male 10 pin bulkhead Use Tethered Mooring with battery Autonomous with internal battery Ocean Sonics icListen Operations Guide August 2013 32 14 Wiring Tables for icListen The following are standard pinouts used with molded cables and shorting jumpers provided by Ocean Sonics As your application may have specific requirements please refer to the wiring table provided with your unit Drawings of the molded cables are available by request from Ocean Sonics 14 1 icListen LF USB Interface 4 vann Figure 14 1 Subconn MCBH8M male face 14 2 icListen HF Ethernet Interface Name DC Figure 14 2 Subconn MCBH8M male face Ocean Sonics icListen Operations Guide O August 2013 33 14 3 icListen LF USB Cable MCILSF Wire a Pin m 3 Cy 00 w 9 M Figure 14 3 Subconn MCIL8F female face Ocean Sonics icListen Operations Guide Figure 14 4 USB pin positions August 2013 34 14 4 USB cable to icListen LF w battery and sync Name Colour USB Pin Splice Pigtail 1 GND RED BK
24. in the need to have the instrument serviced to replace the connectors For icListen LF if your unit is battery powered by using a shorting plug ensure the shorting plug has been disconnected from the unit after retrieval For icListen HF make sure your unit is powered down by disconnecting the power adapter from the test cable and press the Power Down Reset button on the settings tab of the web interface icListen HF may also be powered down by fully inserting then removing the Power Down plug included with the unit These steps will avoid running down the battery or possibly logging data while in storage Failure to do this will not damage the unit but could result in lost time while the battery is being recharged or while clearing or retrieving unnecessary log files from the unit Ocean Sonics icListen Operations Guide August 2013 24 9 4 Connector Care Ensure that the mating surfaces of the connector are fully seated before deploying the instrument Failure to do this could result in shorted connections when the unit is placed in the water Never use excessive force to seat connectors This may result in the pins being broken or bent which could result in down time while the connectors are being replaced If a connector is tough to get in place lubricate the rubber parts of the connector sparingly using Molykote 44 Medium lubricant Never use the backshell fastening nut to force the connector into place This could re
25. ing the network usage when possible during internal logging operations is advised to avoid this Over time as files are logged and deleted on any file system the efficiency of writing to that file system may decrease The efficiency can be recovered by proper formatting of that file system Use the Clean Data Partition button on the icListen HF web server to format the data logging partition for optimal performance WARNING Make sure all logged data is backed up from icListen before performing this action as it erases all logged data on the instrument icListen Operations Guide O August 2013 26 10 5 I can t connect to my Ethernet icListen s IP address e Do not add leading O s to any part of the IP address Many applications will treat address fields with leading O s as base 8 numbers instead of base 10 For example if your address is 10 11 12 1 and you type 010 011 012 001 into your browser or Lucy you will not be able to connect to the instrument 010 011 012 001 will be interpreted as 8 9 10 1 e If this fails to fix the problem make sure that your computer is on the same network as your icListen If your icListen and computer are on separate private networks it will not be possible to connect to it For icListen HF either Ocean Sonics Marco or Lucy v3 6 or newer can be used to reconfigure the device s network settings to make the instrument accessible For icListen LF your computer network settings must be adjusted in order to all
26. k status amp configuration Figure 1 1 icListen Family We hope you enjoy your experience with your icListen product and look forward to receiving feedback on your experience using it Ocean Sonics icListen Operations Guide August 2013 2 Features of icListen 2 1 Low Frequency The icListen LF combines high signal integrity high storage capacity low power and small size with the ability to process sound data in real time The icListen LF can be used in a tethered mode or as an acoustic data logger In tethered mode real time waveform or spectral data can be continuously acquired by a PC running the Lucy program As a data logger the Smart Hydrophone can be configured using Lucy then left for extended periods under water to collect waveform or spectral data storing it internally The amount of recording time is dependent upon the sample rate as seen in the following table Figure 2 1 icListen LF Sample Rate MB per day Days with 32 GB 250 S sec 492 16 months 130 259 518 Note that storage time can be increased significantly by using event detection to record data periodically or when certain conditions are detected Waveform data is logged in the standard wav format making it accessible from a wide range of software programs Spectral data is in FFT format detailed in the icListen Log File Formats document The Lucy program is ideal for viewing stored waveform or spectral dat
27. ost when returning only 16bits Ocean Sonics icListen Operations Guide O August 2013 11 5 2 Power Spectrum FFT Data One of the most powerful processing features of icListen smart hydrophones is their ability to provide power spectrum frequency data Looking at data in the frequency domain rather than the time domain provides a clearer picture of what s going on within a sound and can dramatically reduce the storage and bandwidth requirements of an operation 5 2 1 Real time Data All icListen models are capable of providing real time FFT data This data provides a clear picture of what s happening in a sound Transmitting FFT data rather than waveform data reduces the bandwidth requirement dramatically as well which saves on transmission costs and improves reliability This data is also accompanied by information on how the unit was configured when the data was collected as well as scaling information which can be used to convert the data from voltage to pressure measurements 5 2 2 Stored FFT Data icListen LF is capable of storing processed power spectrum data in files of type FFT This is a binary file format similar to the WAV file format used for waveform data icListen HF is capable of storing processed power spectrum data in tab separated variable format TXT files These files can be read by virtually any spreadsheet or text editor program Storing spectrum data can provide a much more compact form of data storage than wa
28. ow it to communicate with icListen Ocean Sonics icListen Operations Guide O August 2013 27 11 Functional Block Diagram The drawing below shows the icListen LF key functions The Blocks on the left of the diagram represent connector functions Not all interface functions are available on all instruments Sync In Sync Out Temperature y G Figure 11 1 Functional block diagram Ocean Sonics icListen Operations Guide August 2013 28 12 Instrument Performance e The charts on the following pages show the frequency and noise response of the icListen LF instrument at the 250Hz and 4000Hz sample rates The first chart shows a conventional voltage and ADC count response versus frequency over the bandwidth of the instrument e The second chart shows the instrument dynamic range as a function of the maximum signal and the measurement noise floor Ocean Sonics icListen Operations Guide O August 2013 29 12 1 Response at 4000 Samples sec The following charts show the icListen LF performance for its default sample rate of 4000 Samples sec Note that the bandwidth at this sample rate is 1600 Hz Sound Pressure dB re 1 Pal Counts a 1 mPa icListen Signal and Noise Limits Mn all LUT L E 180 tt Tf L LIK 160 L mes L L LU A _ lal e LLL LL PEN S NC LL
29. res below show an example waveform data set divided into sections which are used to compute frequency data These figures show the data used with no overlap 096 5096 overlap and 7596 overlap M 1 tT 2 1 3 gt FFT 2 Figure 5 1 FFT s with 096 Overlap Figure 5 2 FFT s with 5096 Overlap 2 FFT uur Figure 5 3 FFT s with 7596 Overlap An overlap can be used in combination with mean peak value and filtered exponential moving average processing icListen HF uses a 5096 overlap for all spectrum data while icListen LF allows the overlap to be adjusted Ocean Sonics icListen Operations Guide August 2013 13 5 2 4 2 Mean Average This form of processing will calculate the mean average power found at each frequency over a configurable averaging period The averaging period is the number of FFT data sets over which the average is calculated The mean value for each frequency bin is calculated as follows N 1 2 cul j 0 Yen N Where Averaging Period Y Signal Power of frequency bin C FFT Coefficient i Frequency Bin Number j FFT Data Set Number 5 2 4 3 Peak Value Detect Peak value detect processing keeps track of the maximum power level found at each frequency This can be configured to be done over a set number of F
30. sten logs data internally while being powered by a battery the internal battery or an external battery may be used This procedure requires access to e A fully charged icListen HF APCrunning Ocean Sonics Lucy software v3 6 or newer and any web browser AnicListen HF test cable and power adapter Procedure 1 Connect test cable to the PC and icListen connect the power adapter to the test cable and mains power and wait approximately 1 minute for the icListen to start up 2 Start Lucy and open the Link panel by pressing the Link button on the lower right of the window Select Ethernet as the connection type Use the Find All Units button to locate your icListen and double click on it to connect Verify that the displayed serial number matches the number on the icListen being deployed 5 Open icListen HF Setup tab on the setup panel in Lucy this can be done by pressing the Job button in the lower right section of Lucy s main panel 6 Synchronize the time on the icListen using the Sync Time button Check Lucy s status line to verify that the time sync has been performed this is the line of text displayed beside the Enquire and Clr buttons on Lucy s main panel 7 Set all waveform settings bandwidth data mode log length and duty cycling if applicable and spectrum settings bandwidth log length data mode and processing as required by the survey Also set the logging delay and
31. sult in damage to the connector or backshell and may result in the connectors not being fully seated in place The connector should not be exposed to extended periods of heat or sunshine Should this occur and the connectors become very dry they should be soaked in fresh water before use Any accumulation of sand or mud in the female contact should be removed with fresh water Failure to do so could result in the splaying of the female contact and damage to the O ring seals Disconnect by pulling straight not at an angle Do not pull on the cable and avoid sharp bends at cable entry 9 5 Deployment When deploying an icListen it is a good idea to apply some gentle soap such as dishwashing liquid to the surface of the hydrophone This will help to break the surface tension avoiding bubbles forming on the hydrophone surface which could have adverse effects on the signal quality If your icListen will be internally logging data make sure that the file system is ready see File System Care 9 6 Long Term Deployment For long term deployments contact Ocean Sonics for support Ocean Sonics icListen Operations Guide O August 2013 25 10 Troubleshooting icListen 10 1 Instrument not communicating Check wiring If externally powered ensure power is functional using a multimeter Re seat plugs and connectors Check data link interface on PC with another device to ensure PC interface is working If using RS 232 option ensure
32. ten HF monitors the charge and state of the internal battery The stored charge as well as the battery voltage current temperature charging state board supply voltage and processor supply voltage are all continuously monitored during operation This allows a user both to know when the batteries have been fully charged estimate how long the icListen will run from the internal battery and can be used to indicate if there are any issues with the battery Ocean Sonics icListen Operations Guide August 2013 17 6 3 Buzzer Patterns In icListen HF hardware release 2 a buzzer motor was added to indicate status of the unit These patterns can be used to ensure that the device is functioning as expected The patterns produced by icListen are given in the following table Buzzer Patterns used by icListen Unit Booting Up 1 short pulse 0 5s each Firmware is Ready Running 2 short pulses 0 5s each Unit Shutting Down 3 short pulses 0 5s each Error Booting Unit 1 short amp 1 long pulse 0 5s and 1s repeated 3x Note that the error pattern may repeat multiple times if unit is unable to boot The Unit shutting Down pattern will also be played when a unit is powered on after the battery has been fully drained when using software release 19 or earlier 6 4 Time Synchronization All icListen devices are capable of having their time of day set over the command amp control connection to the device This can be done using Ocean Sonics
33. the baud rate is correct or use the auto detect option in Lucy If the cable was recently wired up or modified ensure that the TX and RX lines are not reversed 10 2 I need to find out the icListen firmware version and serial number The instrument s serial number is printed on the side of instrument and its carrying case The firmware version and serial number can be retrieved by sending an Enquire command to icListen This can be done in Lucy by clicking the Enquire button and noting the response to the button s right or by connecting to the unit using the Link panel Figure 10 1 Lucy status bar The firmware version and serial number are also available through the Home or About sections of the web interface 10 3 The information displayed on the web interface is blank or not updating Your web browser may be displaying the page from a cached version For most browsers holding Ctrl while pressing F5 will force all files in the cache to be discarded and refresh the page this is often not done when using the refresh button or pressing F5 without holding Ctrl If this fails you may need to manually clear all browser cache to remedy the issue Ctrl Shift Delete on most browsers 10 4 I m starting to miss data in my icListen HF WAV logs If network usage on the instrument is heavy can be caused by streaming scanning data in Lucy or activity on the web interface or SSH port small amounts of data loss may occur Reduc
34. twork or through a direct connection to a device even when not on the same subnet Marco also allows the network settings of the icListen unit to be adjusted A copy of the Marco software is provided on the data stick supplied with icListen HF units As of version 3 6 Ocean Sonics Lucy software is also capable of finding units using the same message protocol Ocean Sonics icListen Operations Guide O August 2013 19 7 Logged Data Retrieval icListen LF and icListen HF can be configured to log data onto an internal storage device This section describes how to retrieve that data from the instrument following a deployment 7 1 icListen LF Data Retrieval Data logged in an icListen LF is retrieved using the Lucy software s file utility The details on how to use Lucy to retrieve logged data can be found in the Lucy User s Manual under the section File Utility 7 2 icListen HF Data Retrieval Data logging in an icListen HF can be retrieved by two different methods These methods are SFTP SCP and the web interface SFTP SCP The SFTP SCP protocols may be used to retrieve data files from an icListen HF This is typically done using a program such as FileZilla The login user name is icListen and by default there is no password Port 22 is used when making SFTP SCP connections Web Interface Release 15 and newer Data can be retrieved through the icListen HF s web interface as of release 15 July 2012 The web interface is accesse
35. ui EE pan pa NU Np a ale 9 D i PET SAWIER OverlaD d bnc ao 13 Figure 5 2 FFT swith 5076 OV CUA Ds costo ide klatap tk ako ok di lav e a Use at lm n kt a a ii 13 Heure 5 3 FFT 7 570 OV NA RR da nat l ke kast t 13 PiU Re oA EPOCA TEIBBOES kita E p t ban kd pit 15 Fiere 20 15 EWO SEA BWE AR true anno de ne sese do du to do 26 Figure 11 1 Functional ia ak ok nn anl al ank l a a SEA ti l e ES 28 Figure 12 1 Noise response at 4 kHz sample 30 Figure 12 2 Noise response at 250 Hz sample rate ins rer 31 Figure 14 1 Subconn MCBHS8M male face SEN ga FU kalpat Via a ke ka gate pe YE rb a k bak 33 Figure 14 2 Subconn MCBH8M male 33 Figure 14 3 Subconn MCIL8F female 34 Figure 14 4 USB pin positions bite pas kan 34 Figure 14 5 Subconn MCIL8F female 9 9 99 35 Figure 14 6 USB pin positions wo a ab as kk ak tk e kk ea kat ke pa ek pa Fk e Pe e pe ik net ki kk e ke bet ke 35 Feure da Charger CODE OR 35 Figure 14 8 SYNE ae a dede a ete du li 35 Figure 14 9 Subeonn MCBHSM male face kek e l tk kab jik ba al 36
36. unit list icListen LF 1337 icListen LF 3 anual Lonnec Figure 3 1 Lucy USB RS232 connection display Sonics icListen Operations Guide August 2013 6 k a Setup Lucy Setup icListen HF Setup IP Address 192 168 0254 50000 Timeout ms 21000 icListen HF 616 found on 192 168 0 254 Reboot Shutdown Setup Options Standard Advanced Figure 3 2 Lucy Ethernet connection display 4 Click the Enquire button in the middle top of the display A message to the right will display in black if enquire is successful or red otherwise Note the serial number in the displayed message to ensure it matches the number on the hydrophone The message also displays the sensor temperature which may be slightly different from that outside the instrument and the internal humidity Unit Status icListen LF 3 Ready Firmware v2 3 01 32 0C 23 5 RH Figure 3 3 Lucy status display 5 The humidity is an indication of the seal quality A humidity reading of 50 or less is acceptable Higher readings indicate a possible leak in the seal Contact Ocean Sonics if the humidity is higher than 80 Close the Setup window if it is still open 6 Click the Start button in the top left corner The display should begin to show data in the charts Gently tap the hydrophone or whistle near it to cause a change in the display If the display is black red change the reference setting on the bottom left until blue or green
37. veform data allowing for faster data retrieval and analysis It also reduces the storage capacity requirements and means that the unit can store data for longer periods of time between data retrievals In addition to the spectrum data both file formats also store additional information such as temperature and humidity which can be used to aid in analysis For more information on the FFT and TXT file types please refer to the icListen Log File Formats document Data from an icListen HF can be retrieved using the SCP or SFTP protocols on port 22 using a program such as FileZilla Files can also be retrieved from icListen HF through the data page of the web interface in release 15 or newer The username is icListen and by default there is no password Files may be retrieved from icListen LF over the communications channel using Ocean Sonics Lucy 5 2 3 Windowing icListen makes use of the Hann window function in order to reduce spectral leakage when converting data from time to frequency domain Ocean Sonics icListen Operations Guide O August 2013 12 5 2 4 FFT Processing Options Not all applications require data to be processed in the same way For this reason icListen has been designed to allow multiple options for power spectrum data processing 5 2 4 1 Overlap It is often useful to have some overlap in the waveform data used to compute frequency data This helps to improve the time resolution of the resulting data The figu
38. y program As a data logger the Smart Hydrophone can be configured using Lucy then left for extended periods under water to collect waveform or spectral data storing it internally Figure 2 3 icListen HF The amount of recording time is dependent upon the sample rate as seen in the following table How Sample Rate Affects Storage Time 128kS sec 332 09 256kS sec 664 _ 04 512kS sec __ icListen HF can also log 1 2 4 and 8 kS sec data icListen HF will not currently log 24 bit data at 512 kS sec Note that storage time can be increased significantly by enabling Duty Cycle Logging to record data periodically or by storing processed FFT data Waveform data is logged in the standard wav format making it accessible from a wide range of software programs Spectral data is in txt format suitable for spreadsheet viewing It is detailed in the icListen Log File Formats document The Lucy program is ideal for viewing stored waveform or spectral data Spectral analysis of data is optionally performed in the instrument and can be averaged for up to one minute to reduce the quantity of data transferred or stored Ocean Sonics icListen Operations Guide August 2013 4 2 4 HF Feature Summary e Frequency Range HF 10 Hz 200 kHz Low power approximately 2 W Power input requirement 24 VDC 15 e Supplies real time waveform and processed data in tethered mode e Processed data in spreadsheet TXT
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