www.cybernet.com
Optical Laser Health Monitor
Joseph Tesar - Director of R & D
Cybernet Systems Corporation
727 Airport Blvd
Ann Arbor, Michigan 48108
www.cybernet.com
(734) 668-2567
www.cybernet.com
Optical System Fault Management (OSFM )
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Current Development Work for USAF
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Provide software maintenance monitoring system for
the Airborne Laser Optics and Diagnostics System.
Create intuitive interfaces for operators to access
sensor data and evaluate past events
Supported by Small Business Innovative Research
Grant (SBIR) – Kirtland AFB and MDA
Note: A key goal in SBIR program is to create dualuse technology (military/commercial).
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Various Markets for Diagnostic Software
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Software modules developed for military and
commercial laser manufacturers
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Image analysis algorithms to assess beam quality
Intuitive User Interface
Archiving of performance data
Real-time remote control of actuators, etc in beam path.
Provide remote diagnostics and assessment of field-based laser systems
•Industrial Lasers
•Medical Lasers
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Why Develop this Software?
A need exists to monitor high value optics in critical laser
systems
 Identify degradation on key subsystems using sensors
 Monitor high value optics during operation
 Assure consistent performance over time
 Provide laser operators with easy access to laser data
 Provide an intuitive interface to look at current and
historic data.
 Access historic data and compare with current data
 Complex problems can have complex history
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Remote Diagnostics & Data Sharing
Sensors
Integrated into
Laser
ABL Laser
Operators
EZ access to data
Performance
Databases
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Real-time and Historic Data
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View data from Laser during operation
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View multiple feeds from data sensors
Archive data into database
or
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Compare current data from historic data
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Access historic data from database
Compare trends, max/min data points, etc.
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Current Software Development
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Access Data from sensors on Laser
Exchange data with a commercial database.
Create a toolkit that allows the operator to easily
manipulate sensor data and track trends.
Create a Drag ‘n Drop tool to assign sensors to specific
optics.
User tests
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Ex: Interface Screen to Laser Data
Colored indicators for
“quick view” of status
Detailed values also
available
User selected windows
for different data
Example screen
Trend data available for
comparison of different
inputs
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System Block Diagram
Laser System
Data
Trend
Archive
Laser Bench Model
Cameras
Laser
Bench
Data
Sensors
Laser Bench
Configuration
Editor
Laser Bench
Laser
Bench
Configuration
Component
Models
Component Model
Editor
OLHM
Data Interface
Image
Processor
Automation
Engine
Script
Command
Analysis
Engine
Command
GUI
Data
Mediator
Report Generator
Report
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Optical System Fault Monitor Software
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Current status:
 Gets average, min, max, and histogram of intensity values
 Sets (and gets) polygon bounds between image and
background
 Converts between color schemes
 Converts to binary, gets skeleton image, centroid, ratio
 Inverts, softens, copies, crops, zooms in and out
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Under Development
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Peak position and centroid
 OSFM already calculates these
 User needs to specify threshold
Intensity distribution w/histogram
Total and peak power
Beam width measurements (integrated power).
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Next Additions
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User-specified aperture
 Add circle, ellipse to polygon
3D graphics
Percent power within aperture
Uniformity: formula, convert
integrals to sums
Limit calculations to user-defined
areas
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Statistical analysis
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Mean, standard dev, min,
max, graph of any
calculation over time
 Slope/regression line
 Pass/fail notification with
min/max parameters
Note: Pass/Fail notification can be
automated with alerts being sent to
maintenance personnel
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Image Processing
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Image processing block has been developed that
incorporates image manipulation algorithms from
Cybernet’s library:
 Edge-finding
 Feature extraction
 Image comparison
 Image format translation
Images can be displayed statically, as a sequence,
or as full-motion video (FMV).
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Database on Central Server
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Centralized storage of data
from individual lasers in the
field
 Secure, accessible
Structure based on existing
Web database developed for
medical data.
Supports searches,
archiving of data
Instant Access to
Maintenance Documents
Example of Database Screen from
Cybernet’s Medical Server
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Drag’n’Drop Laser Bench Configuration Editor
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In order to be flexible, our
system design includes a
tool for defining the optical
component train and
sensors used to monitor it.
This is a visual aid to
“link”a given sensor to a
given location on the laser
bench.
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Contact
Joseph Tesar, Principal Investigator
E-mail: jtesar@cybernet.com
734-668-2567