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PCB Production Line Tester |
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Automatic test head change-over
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Cycle time less than 45 seconds
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Objective LED colour, LCD segment
and intensity checks
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Current measurements at 0.5mA accuracy
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Full testing of rotational controls
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To see how
an Operator uses the
PCB Production Line Tester
Click here
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Front view of test head showing LED fibre
optics and button pressing pneumatic cylinders
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Side view of workstation with operator at
turntable |
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Test System Solution - Hardware
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32 channel ADC for voltage
measurements - NI multi-function I/O board
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32 relay contacts for UUT I/O
switching - NI DIO board
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Progammable Power Supply,
direct control of settings and read-back of current measurements through
USB
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Mode switchable, VGA
Fire-Wire colour camera with own serial interface card
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DeviceNet valve blocks for
pneumatics and signal interface for sensors - NI DNet card
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Barcode readers interfaced
over serial port
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Front view of partly dismantled
workstation showing turntable with tested
unit at operator position
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Firewire Camera in position with view of
fibre optic array coming up from LEDs and incandescent lamps on PCB
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Test System Solution - Software
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Configuration of Multi-function I/O, DIO, DNet and FireWire with MAX
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Prototyping of Image processing and Machine Vision functions with Vision
Assistant, using Regions Of Interest techniques
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Image processing uses RGB to derive Hue, Saturation and Luminance for targeted
LED evaluations
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Machine Vision uses pattern matching in monochrome and derived HSL for LCD
background colour and intensity
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LabVIEW 7
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System
user interface showing symbolic turntable and 4 test positions
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(Doncaster, Victoria)
The DRS is a
PocketPC-based logging system that enables the recording of observed defects in
the assets and infrastructure under the control of the Council, and their
locations.
This is achieved
with a touch-sensitive user interface, by which a vehicle occupant can log
observed defects as the vehicle proceeds along the roads and streets of the
municipality. The PocketPC is mounted in a fully installed holster, and it may
be removed for recording defects away from the vehicle.
Defects are able to
be recorded by use of a three-level descriptor system. The opening screen
carries 16 defect categories. By selecting one of these broad categories, the
operator then chooses a defect type from up to 16 options, and at the third
level 16 specific defects are available.
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View of DRS Mobile Unit |
DRS User Interface |
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The location of the defect is done automatically by reading
vehicle or operator position from a small GPS receiver fitted to the PocketPC.
The time the defect was recorded and the person making the record are also
logged.
Data collected by field staff is transferred to a file server
by use of an integrated wireless connection. This is a short-range radio link
that has its base at the Council depot or place where staff return following
infrastructure inspections. Defects are then imported by (other) work order
systems to generate corrective action undertaken by Council.
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Rail Operations
Enhanced by Tunnel Radio System
Niksar Australia commissioned
and set to work an elegant radio repeater installation that enhances the
range and safety of shunting operations of Pacific National, a major freight
rail company.
Four
channels are provided at the site which was characterised as follows:
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assembly of
trains over 1 km in length
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shunting operations extend into a 420 metre tunnel
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approximately 1600 metres away from the repeater site
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little or no communications to the shunting channels in the tunnel
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fading and interference on the bridge and cutting on the approach to this
tunnel
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The major requirement was to extend shunting channel coverage seamlessly
without a need to channel change.
The
solution met all ACA licensing requirements and
co-exists
with Victrack services in the same area.
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Niksar Australia engineered coverage extension for railways communications
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(Somerton, Victoria)
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100% testing of integrated car dashboard assembly |
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Testing needed to be completed within a one- minute cycle |
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Implemented in LabVIEW and TestStand |
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Used National Instruments CANbus,
Multifunction I/O hardware in PCI environment |
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Niksar Australia designs test equipment for car
dashboard assemblies
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(Rouse Hill, NSW)
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Management of long term property
degradation |
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Uses image processing to
establish objective changes |
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Correlates image changes (colour/pattern/shapes)
with environmental and visitor traffic impact |
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Implemented in Delphi with
National Instruments IMAQ |
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Niksar Australia designs condition monitoring
software and equipment
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(Port Melbourne, Victoria)
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100% testing of the nodularity of raw cast steering
knuckles |
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Tested by passing ultrasonic pulses through the material
and measuring the speed of transmission |
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Implemented in LabVIEW |
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Used National Instruments oscilloscope card in PXI rack |
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Niksar Australia upgrades production tester
for steering knuckles
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SYSTEM DESIGN AND INTEGRATION 
