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LSV2 Charger Remote Control
Design Team: (from the left)
Branden Carpenter Wayne RomineJon StokerDr. Hess (Advisor)Maggie RichardsonDr. Donohoe (Advisor)
3Team Zap Gap - LSV2 Charger Remote Control
For thousands of years mankind has sailed the oceans.Only in the last century have we sailed beneath the
surface.Undersea Warfare is an area of great technological
growth.The US Navy operates a battery-powered large scale
model submarine to study acoustic and hydrodynamic characteristics
Presently a Charging technician to monitor and manually control the charge process at the individual chargers (7 Propulsion and 1 Instrumentation)
The goal of this project is to develop a computer-controlled system to improve the efficiency of charging the batteries
Intro
4Team Zap Gap - LSV2 Charger Remote Control
Utilize the existing chargers without modifying them directly
Determine a reliable method of remotely articulating the functions of the chargers
Design a Graphical User Interface to control and display charger output
Project
5Team Zap Gap - LSV2 Charger Remote Control
LSV2, USS Cutthroat, is a self-propelled fully autonomous research submarine.Bayview, ID on Lake Pend OreilleTest platform for hydro acoustic and
hydrodynamic analysis205 ton 10’ diameter111’ lengthRepresents Virginia Class SubmarinesNamed in 1997 by Athol Elementary School for
the indigenous Idaho fish.
Background
6Team Zap Gap - LSV2 Charger Remote Control
Interface via serial connectionRS-232 ( also configurable for RS-485 protocol)Via a computer workstation
Control of Chargers via a Graphical User Interface (GUI)Assembled using Windows Visual Studio 2008Communication ports are configurable to those
available at the PCMOXA CP-118EL
Gives eight additional COMM ports to give each charger a dedicated signal path.
Adds channel specific control for the user interface program
Solution
7Team Zap Gap - LSV2 Charger Remote Control
System Block Diagram
PC
Chargers
Serial Interface
(A2D)
Monitor(GUI)
Serial COMM port
(MOXA)
Cables(STP RS-
232)
Power to
Battery Strings
•Button Clicked in GUI•SCPI Command sent via RS-232•Serial A to D interface changes output•Power level connected to Batteries is adjusted •Propulsion: 1680,
2V, Valve Regulated Lead Acid Batteries (VRLA)•Instrumentation: 186 2V VRLA Batteries
Team Zap Gap - LSV2 Charger Remote Control
Connections
A to D/ D to A board inside charger
ICS (4861/2361)
COMM Port Expander
(MOXA CP-118EL)
8
PC w/ PCIe 1x-16x
DB9 cable connections
to J4 10 pin header
9Team Zap Gap - LSV2 Charger Remote Control
ICS Electronics (A to D/ D to A Board)
J4: RS 485/ RS 232 10-pin header
13Team Zap Gap - LSV2 Charger Remote Control
Bench TestingEnsured the proper
interaction of the A to D card and charger outputs
Generated flow diagrams for coding of the GUI
Verified the digital command fidelity in the EMI noise of the U of I power lab
Test performed on charging units at the Bayview Naval Base
Commands used during a charging profile were tested successfully
Returned data (voltage and current output level) was incorrect Calibration procedure of
the analog to digital branch of the ICS electronics board should fix this error
Hardware Test
Onsite Test
Team Zap Gap - LSV2 Charger Remote Control
Project DeliverablesDetailed installation instructionsParts for installation
MOXA CP-118EL serial boardRequires a PCI express slot on motherboard
DB9 serial connectorsSoftware package to control the systemDocumentation and Instructions
Installation CalibrationOperating
14