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SonarMite BTx/SPx v5.02 © 2016 Lymtech 

 

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INTRODUCTION 

 
The  SonarMite  Echo  Sounder  was  the  result  of  nearly  two  years  research  and 
development  to  further  extend  the  boundaries  of  shallow  water  hydrographic 
surveying  equipment.  The introduction by Ohmex of the SonarMite, the worlds  first 
truly portable echo sounder system, has been a hard act to follow and it remains the 
portable  instrument  of  choice  in  many  survey  companies  around  the  world.  The 
release  of  the  SonarMite  BTX/SPX  instrument  marks  the  next  stage  introducing  a 
series  of  equipment  designed  around  the    WinSTRUMENT  concept  using  the  latest 
portable computers integrated with new measurement technologies. 

 

Throughout  the  Hydrographic  world  the  term  'Black  Box'  has  become  a  euphemism 
for a device that has  a minimal  user interface and normally requires connection to  a 
PC  to  be  of  any  use  !  In  most  cases  these  boxes  are  a  cut  down  version  of  a  more 
conventional  instrument  without  all  the  features  of  the  full  system.  The  SonarMite 
extends this idea of a rugged design and minimalist interface to produce a 'Blue Box' 
system  where  the  user  interface  is  provided  by  integrated  software  running  on  a 
portable  computer  connected  via  a  Bluetooth  link.  The  use  of  wireless  technology 
enables the instrument to be waterproof and used in a hostile environment while the 
more sensitive computer features can be located in a more user friendly environment 
up to 50m away from the instrument. 

 

 

Typical SonarMite equipment 

 

The  SonarMite  BTX/SPX  instrument  uses  the  same  'Smart'  integrated  transducer 
technology  used  in  previous  systems,  in  addition  to  highly  reliable  bottom  tracking 
algorithms  using  DSP  techniques  the  system  also  outputs  a  quality  value  associated 
with  every  depth  measurement  made.  The  popular  SonarW7  software  has  been 
updated to the latest Windows versions. Software for the 'front end' of the SonarMite 
is  available  to  run  on  a  wide  range  of  devices  from  Pocket  PCs  through  to  the  full 
range of desktop systems running the Windows operating system. 

Содержание SONARMITE

Страница 1: ...ce products in the field of instrumentation and software used within the Earth Science sectors Achievements to date include DGM the first digital ground modelling software to run on a standard PC SONARLITE the first truly portable echo sounder TIDALITE the first portable Tide Gauge EDAS Integrated tide and weather networked software for use by ports and harbours SONARMITE the first portable Blueto...

Страница 2: ... more conventional instrument without all the features of the full system The SonarMite extends this idea of a rugged design and minimalist interface to produce a Blue Box system where the user interface is provided by integrated software running on a portable computer connected via a Bluetooth link The use of wireless technology enables the instrument to be waterproof and used in a hostile enviro...

Страница 3: ...urvey sounder is a narrow beam width to prevent averaging of the returned signal 235KHz Active Transducers The SonarMite uses Active Transducers these are digital as opposed to analogue components and use microprocessors to synthesize transmitted frequencies and to interpret the return signals The devices incorporate state of the art DSP and filtering techniques to reduce noise and improve depth t...

Страница 4: ...66 depth transducer c w 5m cable and embedded processor Serial data lead IP68 rugged plastic Transit case SonarW7 post process import export software SonarMite BTX single beam echo sounder The following is a short list of accessories for the SonarMite SonarMite Windows Mobile PDA software SonarMite W7 software for Tablet Portable PC USB serial data lead Aluminium shoe to connect transducer to deta...

Страница 5: ... unit c w 1 5m 12v battery leads Smart P66 depth transducer c w 5m cable and embedded processor D9 Serial data lead SonarW7 post process import export software SonarMite SPX single beam echo sounder The following is a short list of accessories for the SonarMite SonarMite Windows Mobile PDA software SonarMite W7 software for Tablet Portable PC USB serial data lead Aluminium shoe to connect transduc...

Страница 6: ... equipment such as the HyDrone RCV Power is provided by an external 12 24vDC battery or source the internal power circuit is protected against reverse polarity connection SonarMite BTX OEM single beam echo sounder The SonarMite OEM variants are supplied as per the standard versions but without the following items of equipment Internal rechargeable batteries external power Universal EU US UK batter...

Страница 7: ...ngle beam systems in the same format as the previous SonarMite BT SP and SonarM8 systems As with the previous SonarMite versions every measured depth is accompanied by a QA value which can be used for post analysis of the survey data INSTALLATION USE This chapter describes how the SonarMite Portable Echo Sounder would normally be installed and used The typical way in which the device can be used f...

Страница 8: ...sound in water and hence the depth calculated from this time by the SonarMite The user can either measure the speed of sound in water by taking velocity profiles using a dedicated velocity measuring device or can use the SonarMite static over a known depth to a flat firm base and then compare the measured value with the known depth The difference in Sound Velocity between warm fresh water and cold...

Страница 9: ...SonarMite BTx SPx v5 02 2016 Lymtech Page 9 WARNING Only the correct NiMh battery charger should be used with the SonarMite ...

Страница 10: ...SonarMite BTx SPx v5 02 2016 Lymtech Page 10 ...

Страница 11: ...onform to the IP65 waterproofing standard this benchmark describes equipment which can withstand a light spray of water from a hose for a short period of time it does not imply the device is suitable for immersion in any depth of water or exposed to prolonged harsh weather conditions The weatherproofing also assumes the connectors or cover caps are fully screwed on to their rubber sealing rings Th...

Страница 12: ...mounting to transom angles from 2 to 22 Integral release bracket protects against impact damage mounts with 3 screws and provides 12 mm of vertical adjustment Chemical and impact resistant plastic housing Designed to meet CE requirements Shielded piezoceramic element for noise free echo sounder display Standard minimum cable length 5 0 m 16 feet Transom Mounting Transducer Transducer Mounting When...

Страница 13: ...e calculation of X Y offset to zero Example Transducer Mountings Typical rubber boat mounting Avoid Stressing Transducers The Active Transducers include piezoelectric elements which are embedded within a resin compound If the user has to fabricate a custom mounting for the transducer a very common requirement given the vast permutations of boats in which surveys are performed avoid using a fixing ...

Страница 14: ...ssword code In some instances the local Bluetooth interface may request a password ID to set up pairing with the device for BTX SPX version devices the pin number is always set to 1234 numeric one two three four Typical PC Bluetooth software Bluetooth Serial Port Profile Bluetooth Serial provides either a Bluetooth slave or master connection fully supporting the SPP Serial Port Profile Features Fu...

Страница 15: ...DA The Bluetooth Serial Terminal will connect to any Bluetooth enabled device supporting SPP This can be in MASTER mode where the terminal initiates the connection or SLAVE mode where the remote device initiates the connection The method of connection will vary depending on the remote device However generally the other device will perform a four stage process The remote device will discover other ...

Страница 16: ...serial interface which can connect to a computer using RS232 protocol The default settings are 4800 Baud Rate 8 Bit 1 Stop Bit No Parity Example Serial Cable Example USB adaptor cable Using the slower baud rate of 4800 allows the serial cable to be extended so that the computer can be up to 20m away from the echo sounder ...

Страница 17: ...SonarMite BTx SPx v5 02 2016 Lymtech Page 17 Typical Windows HyperTerminal settings Hyperterminal ASCII settings Hyperterminal Connection settings ...

Страница 18: ...of the machine referred to as the Transducer or TXR and Computer or PC connections There are no user connections or serviceable parts within the SonarMite body itself PC or Computer connection This 6 way female connector is used to connect to either a PC serial connection or for an incoming message in the polled mode connection ...

Страница 19: ... 02 2016 Lymtech Page 19 Transducer connection This 6 way male connector is used to connect to the SonarMite transducer the same connection is also used for the battery charger connector Transducer and Computer connections ...

Страница 20: ...ors one for current status information the other for Bluetooth connection on off Front Panel status LEDs Connector Caution The MIL spec connectors have a locking ring and also a retaining clip Trying to remove the connector by unscrewing the retaining clip will twist the internal cable and could cause a serious fault ...

Страница 21: ...trument Flash Memory The instrument contains an area of configuration data held within its semi permanent FLASH memory area On running the instrument this data is copied into the current working RAM area of the processor Pressing any of the configuration command characters will only change the current active states enabling the user to sample output unil the Save command is used to store the curre...

Страница 22: ...le in the SYS format Memory Operations R eset Pressing R Contol R will reset the SonarMite to its default values these values are saved in Flash memory and set in current working RAM memory only available in the SYS output mode L oad Pressing L Contol L will reload the Flash memory into the current working memory only available in the SYS output mode S ave Pressing S Contol S will save the current...

Страница 23: ...utput Output Parameters Output message is eight numeric ASCII parameters floating format space delimited as id depth roll pitch heave battery qa flags cr lf where id The id number of the instrument 0 7 depth current measured depth m roll current roll lateral atitude deg pitch current pitch axial atitude deg heave current heave depth correction m battery current battery condition v qa current depth...

Страница 24: ...M 67 SMDBT 1 6 f 0 48 M 5C SMDBT 1 6 f 0 48 M 5C SMDBT 1 6 f 0 48 M 5C SMDBT 1 6 f 0 48 M 5C SMDBT 1 6 f 0 48 M 5C SMDBT 1 6 f 0 48 M 5C Example NMEA DBT Output Format 3 DPT NMEA mode e g SMDPT 1 81 0 0 66 SMDPT 0 48 0 0 62 SMDPT 0 48 0 0 62 SMDPT 0 48 0 0 62 SMDPT 0 48 0 0 62 SMDPT 0 48 0 0 62 SMDPT 0 48 0 0 62 Example NMEA DPT Output Format 4 Odom SBT mode e g et 47 Example Odom Output ...

Страница 25: ... Output Format 7 mode used for system settings SYS 54 0 48 109 109 0 116 1500 0 2 0 SYS 15 0 48 109 109 0 116 1500 8 9 0 SYS 13 0 48 109 109 0 115 1500 8 9 0 SYS 14 0 48 109 109 0 116 1500 8 9 0 SYS 14 0 48 109 109 0 116 1500 8 9 0 SYS 14 0 48 109 109 0 116 1500 8 9 0 Example System Output Format 8 New SonarMite format e g 1 1 88 12 7 128 20 1 0 48 8 9 115 0 1 0 48 8 9 115 0 1 0 48 8 9 115 0 1 0 4...

Страница 26: ...dense cold water only available in the SYS output mode This is a dangerous function and will change calibration values if saved D own Decrease the sound velocity setting for lighter fresh warm water only available in the SYS output mode This is a dangerous function and will change calibration values if saved C lear Reset output to format 0 used by external programs B Set output to new format 8 use...

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