CSD - Depth, Altitude, Draft, Pressure, SV Systems

Underwater Sensor Definition

The following observation types can be defined:

ROV Depth (which despite the name does not necessarily apply only to an ROV)
ROV Altitude (which despite the name does not necessarily apply only to an ROV)
Draft (Draught)
Pressure
Sound Velocity
Revolution

Add a new system by selecting “Edit” from the menu bar, and then “New” and “System”, or right click on the item System in the item tree.

The following dialog opens. It is the first page of a wizard that steps you through the system definition process.

Enter an appropriate name that provides instant recognition in Online displays.

Select Underwater Sensor from the drop down list.

From the drop down list select the driver that corresponds to the data message output by the system to which QINSy is interfaced.

Note that the interfacing can be either serial or network so make sure to select the correct type.

Enter interface port parameters.

Please refer to A Note on Interfacing Parameters.

Enter the data update parameters. Depending on the driver selected one or other, or both, these parameters are shown:

Updates

Maximum update rate

Enter a value to determine how often data will be decoded by the interface driver. Some equipment is capable of outputting data at high output rates, but it may not be necessary to use each update. A sensor system may for example output values hundreds of times per second, where five times per second is sufficient. In this case, enter a value of 0.20s. Any data not decoded by the driver is lost and cannot be recovered later.

Latency

Latency is the time between the actual measurement made in the sensor system and the time the data message arrives at the port. The time in QINSy will thus be the arrival time corrected with the latency.
Modern sensor systems will exhibit no latency, or will have compensated for the latency in the time tag of each data message.