DALSA/CORECO PCVision Product Description:

PCVision™ is a half-size PCI-bus image capture board designed specifically for price sensitive OEMs developing machine vision applications. It is ideal for a large variety of industrial inspection, identification and gauging type applications. PCVision makes interfacing with cameras easy by offering fully programmable timing, trigger, strobe and asynchronous reset capabilities, coupled with practical cabling solutions. Featuring 2MB of on-board memory, with automatic hardware “ping-pong” and de-interlacing capabilities, PCVision assures data integrity and greatly reduces the CPU overhead associated with PCI-bus transfers. Its 32-bit PCI interface can easily sustain transfer rates in excess of 100MB/s. As a result, images can be transferred to the destination memory in a fraction of the time that they were acquired, leaving valuable bandwidth available for other system functions.

Benefits

• Captures full resolution images at high speeds for demanding machine vision applications
• On board 2MB frame buffer and DMA bus master help eliminate unnecessary processor overhead
• Non-destructive overlay on live images improves visualization attributes
• Hardware circuitry automatically de-interlaces images during DMA
• On-board 16-bit digital I/O allows for easy communication of results

DALSA/CORECO PCVision Technical Information

• Acquisition: Four analog video inputs, AC coupled and terminated to 75 Ohms Monochrome "standard" video camera and sources: RS-170, CCIR, VGA etc, that provide composite video or timing (HS, VS, PCLK); or can be driven with external timing (HSYNC, VSYNC, VRESET)
  Programmable Timebase Generator, pixel clock and PLL
  Programmable PLL (Phase-Locked Loop)
  20 MHz Monotonic 8-bit flash ADC
• Memory: 2MB linear mapped VRAM
• On-Board Digital I/O: 16 bits: 8 bits in (direct or latched); 8 bits out
• Video Signal Conditioning: Programmable gain adjust - positive ADC reference (full-scale) from 0 Volts to +2 Volts in 64 steps
  Programmable offset - negative ADC reference (zero) from 0 to +1.2 Volts in 64 steps
  Look-Up Table - 8 in - 8 out following ADC
  DC Restoration - programmable clamp pulse
  Input gain - software selectable: 1.0x or 1.5x
  Low-pass filter - software selectable: 6.0 MHz or bypass
• External Trigger, Strobe Control, and Frame Reset: 1 External Trigger input per camera; synchronizes acquisition to external events.
  Frame Reset Mode: external trigger initiates camera frame reset, strobe, and image acquisition for immediate capture of moving objects
  Support for frame reset cameras
  1 strobe output per camera with programmable polarity; 120 ms nominal duration
  Acquire on next field
  Field acquisition supported
• Video Window Generator: Allows selection of video window within video signal
  Horizontal offset programmable 0 to 1023 pixels (increment of one)
  Horizontal size programmable from 4 to 2048 pixels (increment of four)
  Vertical offset programmable 0 to 1023 lines (increment of one)
  Vertical size programmable 1 to 1024 lines (increment of one)
• Interrupts: Host interrupt on occurrence of strobe, trigger, VB, acquisition or Bus Master
• Hardware Data Conditioning: Image data can be “clipped” during bus master to a Windows display device to eliminate any conflicts with Windows reserved colors
  Auto convert to 16-Bit 4:2:2 for hardware overlay
• On Board Decimation: Image reduction on acquisition by factors of 2, 4, or 8 in X and/or Y-axis
• Display - Windows: Display resolution as per installed VGA device driver
  A DirectX compatible SVGA adapter required for real-time display
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• Automatic Double Buffered Full Frame Acquisition: Hardware controlled “ping-pong” acquisition into image memory, provides most efficient acquisition and bus-master synchronization possible
• Bus Requirements: 32-bit PCI slot
  1.3 A @ +5 Volts
  0.2 A @ + 12 Volts
  1/2 slot PCI card
• Power Output: 500 mA @ +12 Volts per camera (2 A total)
  500 mA @ +5 Volts to digital I/0 port