National Instruments NI Vision PCI-1409 Скачать руководство пользователя страница 21 | Manualshive

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National Instruments NI Vision PCI-1409 Скачать руководство пользователя страница 21

Chapter 3

Signal Connections

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National Instruments Corporation

3-3

NI PXI/PCI-1409 User Manual

Digital I/O Connector

The 68-pin VHDCI connector connects to all video signals (VIDEO0,
VIDEO1, VIDEO2, and VIDEO3), the external digital I/O lines, triggers,
and external signals. To access these connections, you can build your own
custom cable or use one of the optional National Instruments cables.

Note

If you are using the VIDEO0 connection on the 68-pin VHDCI connector, you must

unplug the BNC cable.

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Содержание NI Vision PCI-1409

Страница 1: ...NI Vision NI PXI PCI 1409 User Manual High Quality Monochrome Image Acquisition Device NI PXI PCI 1409 User Manual February 2007 372811C 01...

Страница 2: ...3400 Lebanon 961 0 1 33 28 28 Malaysia 1800 887710 Mexico 01 800 010 0793 Netherlands 31 0 348 433 466 New Zealand 0800 553 322 Norway 47 0 66 90 76 60 Poland 48 22 3390150 Portugal 351 210 311 210 R...

Страница 3: ...luding photocopying recording storing in an information retrieval system or translating in whole or in part without the prior written consent of National Instruments Corporation National Instruments r...

Страница 4: ...t of Communications DOC Changes or modifications not expressly approved by NI could void the user s authority to operate the equipment under the FCC Rules Class A Federal Communications Commission Thi...

Страница 5: ...injury data loss or a system crash bold Bold text denotes items that you must select or click in the software such as menu items and dialog box options Bold text also denotes parameter names italic It...

Страница 6: ...ew Functional Overview 2 1 Video Multiplexer 2 2 Programmable Gain and Offset 2 2 Analog Bandwidth Control Circuitry 2 2 10 Bit ADC 2 2 Digital Filter and LUT 2 3 Onboard Memory 2 3 Scatter Gather DMA...

Страница 7: ...Contents NI PXI PCI 1409 User Manual viii ni com Appendix A Custom Cables Appendix B Technical Support and Professional Services Glossary Index...

Страница 8: ...ional Instruments image acquisition devices With NI IMAQ you can quickly and easily start your applications without having to program the device at the register level As a standalone device the NI 140...

Страница 9: ...ctPCI chassis you cannot use PXI specific functions but you can still use the basic plug in device functions For example the RTSI bus on the NI PXI 1409 is available in a PXI chassis but not in a Comp...

Страница 10: ...software for controlling the hardware National Instruments also offers the following application software packages for analyzing and processing your acquired images Vision Builder for Automated Inspec...

Страница 11: ...hot or continuous mode An example of a low level function is configuring an image sequence which requires advanced understanding of the image acquisition device and image acquisition National Instrume...

Страница 12: ...otype vision applications quickly and test how various vision image processing functions work Vision Assistant generates a Builder file which is a text description containing a recipe of the machine v...

Страница 13: ...l as from non standard cameras such as line scan cameras The NI 1409 digitizes analog video signals to 8 or 10 bits of resolution at sampling frequencies up to 40 MHz The NI 1409 has a factory calibra...

Страница 14: ...r the full bandwidth of 30 MHz or a reduced bandwidth of 9 MHz The 9 MHz bandwidth setting is available using a 5th order Butterworth lowpass filter 10 Bit ADC The 10 bit ADC digitizes the conditioned...

Страница 15: ...controllers transfer data between the onboard SDRAM memory buffer and the PCI bus Each of these controllers supports scatter gather DMA which allows the controllers to reconfigure on the fly This func...

Страница 16: ...ACQUISTION_IN_PROGRESS and ACQUISITION_DONE to these lines The camera control lines provide a means to generate deterministic signals for triggering cameras strobe lights or other timing critical app...

Страница 17: ...ou can use this mode to acquire from asynchronously reset cameras that output a continuous HSYNC Analog Front End Considerations The analog front end of the NI 1409 features a calibrated gain circuit...

Страница 18: ...required by the NTSC standard the clamping pulse may intersect either the color burst or the active video portions of the signal If this occurs an acquired image may appear to have dark and light band...

Страница 19: ...external connector supplies an immediate connection RSE mode only to the 1409 device VIDEO0 input To use the VIDEO0 connection on the 68 pin VHDCI I O connector you must connect VIDEO0 to the signal a...

Страница 20: ...on of the NI 1409 W1 jumper and the connectors discussed in this chapter Figure 3 1 NI PCI 1409 Parts Locator Diagram Figure 3 2 shows the BNC connector pin assignments Figure 3 2 BNC Connector Pin As...

Страница 21: ...onnects to all video signals VIDEO0 VIDEO1 VIDEO2 and VIDEO3 the external digital I O lines triggers and external signals To access these connections you can build your own custom cable or use one of...

Страница 22: ...8 37 36 35 VIDEO 0 VIDEO 0 VIDEO 1 VIDEO 1 RESERVED RESERVED RESERVED RESERVED DGND RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED HSYNCIN VSYNCIN CSYNCIN CSYNCOUT CT...

Страница 23: ...NCIN Use HSYNCIN when the NI 1409 is in external lock mode HSYNC is a synchronization pulse produced at the beginning of each video scan line that keeps the video monitor horizontal scan rate in step...

Страница 24: ...ntain specific pulse widths or internal status signals by using the onboard events CTRL 3 0 Use the control lines on the NI PCI 1409 to control camera features and timing information such as generatin...

Страница 25: ...igger sources or synchronization sources Use the following guidelines when developing your own cables For the video inputs use a 75 shielded coaxial cable For the digital triggers and synchronization...

Страница 26: ...nstruments Application Engineers make sure every question receives an answer For information about other technical support options in your area visit ni com services or contact your local office at ni...

Страница 27: ...com calibration If you searched ni com and could not find the answers you need contact your local office or NI corporate headquarters Phone numbers for our worldwide offices are listed at the front of...

Страница 28: ...converter An electronic device often an integrated circuit that converts an analog voltage to a digital value address Value that identifies a specific location or series of locations in memory ANSI Am...

Страница 29: ...y the expansion vehicle to which I O or other devices are connected C C Celsius cache High speed processor memory that buffers commonly used instructions or data to increase processing throughput CCIR...

Страница 30: ...puter and possibly generating control signals with D A and or DIO boards in the same computer dB Decibel The unit for expressing a logarithmic measure of the ratio of two signal levels dB 20log10 V1 V...

Страница 31: ...tput code is determined in a single step by a bank of comparators and encoding logic frame A complete image In interlaced formats a frame is composed of two fields front porch The area of a video sign...

Страница 32: ...haracteristic of the analog I O circuitry instrument driver A set of high level software functions such as NI IMAQ that control specific plug in computer boards Instrument drivers are available in sev...

Страница 33: ...monochrome picture luminance See luma LUT Lookup table Table containing values used to transform the gray level values of an image For each gray level value in the image the corresponding new value is...

Страница 34: ...nes one for the red component one for the blue and one for the green NVRAM Nonvolatile RAM RAM that is not erased when a device loses power or is turned off P PAL Phase Alternation Line One of the Eur...

Страница 35: ...nd n columns has a resolution of m n This image has n pixels along its horizontal axis and m pixels along its vertical axis 2 The smallest signal increment that can be detected by a measurement system...

Страница 36: ...e acquisition of high quality color images generated either by an RGB or composite NTSC or PAL camera using a monochrome video acquisition board sync Tells the display where to put a video picture The...

Страница 37: ...LabVIEW software module VI which consists of a front panel user interface and a block diagram program video line A video line consists of a horizontal synchronization signal back porch active pixel re...

Страница 38: ...CSYNC configuration parts locator diagram 1 2 3 2 conventions used in the manual v CSYNC CSYNC mux 2 3 external acquisition mode 2 4 genlock and synchronization circuitry 2 3 CSYNCIN signal table 3 5...

Страница 39: ...gnments figure 3 4 signal descriptions table 3 5 K KnowledgeBase B 1 L LabVIEW Vision Builder AI 1 4 lock mode external 2 4 lookup table 10 bit LUT 2 3 N National Instruments support and services B 1...

Страница 40: ...ts NI Vision 1 4 NI IMAQ driver software 1 3 standard acquisition mode 2 4 support technical B 1 SYNC mux 2 3 synchronization circuitry 2 3 T technical support B 1 training and certification NI resour...

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