FOR IMMEDIATE RELEASE

Trimble SCS900 Hydro updates

SonarMite application software (SCS900 v2.5 version).

þ The SonarMite application software has been updated to provide the time stamped data form required by the updated SCS900 application, this includes updated 'pipe' and 'socket' processes for passing data between applications. The SonarMite application has been tied to the following operating systems ...

	PC Version - Windows Vista, TabletPC and Windows 7
	Mobile Version - Trimble TSC2 Windows Mobile 6.0

þ To avoid the problems associated with applications working in forthcoming updates to these operating systems the applications have been compiled as 'standalone' with no dependence on version specific extensions to the environment.

þ The Trimble ACU/TCU versions have been dropped as the WinCe Operating System requires a specific compiler and software developers kit which does not warrant the low demand and high level of support required.

þ The properties dialog box does not show the settings used by the HPR sensor but includes prime sonar setting control settings …

	QA control - A slider control has been added so the user can set the acceptance level for the QA value between normal and highest value. The highest will filter out all but the very best shots based on QA
	Speed of Sound - The user can set the sound velocity value between 1400-1600m/sec, the default setting being 1500 m/sec.
	Socket Number – The socket number used to transmit the data between applications (PC version only), default updated to #1600 to avoid confusion with earlier SCS900 versions.
	Latency Calculation - The user can enable/disable the Latency correction algorithm within the SCS900 extension module, unless the system is using SCS900 to measure positions this function is inoperative.

SCS900 Extension Module DLL

þ Depth Time (latency) adjustment

The SCS900 extension dll is called by the main application and passed a position with a timestamp, the SonarMite extension dll adjusts the depth based on the depth timestamps to suit the timing of the position, this calculated depth is then subtracted from the current position Z value (or height) and returned to the main SCS900 application.

þ Estimation of delay from Ping to Depth Timestamp

As the extension dll receives its data via serial transmission and timestamps it on reception of the Linefeed character, the calculation of the delay from the depth 'start ping' time and subtracts it from the applied depth timestamp.

þ Retention of raw data

	CustomDataField 1 = Depth subtracted from current Z value
	CustomDataField 2 = Current Depth QA value
	CustomDataField 3 = Time between Position and Depth (milliseconds).

These values can be used to reconstitute the original data if required and also estimate the applied time shift and depth QA value.

þ Simulation Mode

The simulation mode in menu DEVICE/TEST DATA/ has been updated to send a timestamp with the simulated depth message. This helps configure or demonstrate the system without the need for a physical SonarMite to be connected.

Download SCS900 drivers v2.5

For More Information Contact:

Lymtech Ltd.
9 Gordleton Ind.Park, Sway, SO418JD, UK
Tel: +44(0)1590 681584
FAX: +44(0)1590 681902
Internet: sales@lmtech.co.uk