Roper PXD1000 manuale d’uso

1 Configuring the PXD1000 Digita l Frame Grabber with a Digital Camer a and Bu ilding a Compatib le Cable Rev 1.1 12/ 00 The PXD1000 digital frame grabber is compatible with nearl y all commercially available 40Mhz and below digital cameras. In order to use a digital camera with your PXD1000 digital f rame grabber, a compa tible cable a nd configur[...]

2 PXD1000. The Technical Support section of the Imagenaiton Web site will contain the latest and most up-to-date information on supported digital c amera s. The following is a partial list of supported cameras (see Web for updated list www.imagenation.com as this list is constantly expanding). Camera Configuration F iles & G uides BASLER BA101 [...]

3 There is no standard for wiring any particular camera. Imagenation provides information to help get you started on page 51 to page 53 in the users guide. Start by making a map of the connections as shown on page 53. You will need to list all the required signa ls needed to drive your camera . In addition to the data line s, most digital c ameras [...]

4 CAMCLK(-) - pin 65 & CAMCLK(+) - pin 15 Name: Came ra Clock Signal provided by: Camera Purpose: indicates when Pixel is valid Signal: Rising sensitive LDV(-) - pin 64 & LDV(+) - pin 14 Name: Line Data Valid Signal provided by: Camera Purpose: tells which pixel is valid f or a line Signal: High or Low depending on camera FDV(-) - pin 63 &a[...]

5 Signal: Rising edge sensitive WEN(-) - pin 56 & WEN(+) - pin 6 Name: Write Enable Signal provided by: Camera Purpose: Defined b y camera FIELD(-) - pin 55 & FIELD(+) - pi n 5 Name: Field Signal provided by: Camera Purpose: signal for even or odd field fo r interlaced output CTRL#0(-) - pin 54 & CTRL#0(+) - pin 4 Name: Control 0 Signal[...]

6 Figure 1 Data conn ector (J2)[...]

7 The I/O Connect or (Optional) All other sig nals (excep t for came ra data and timing ) are available a t the I/O connector. This includes the trigger, strob es and two general-purpose inputs and two outputs. Figure 4.2 shows the signals on the I/O connector 3) Build from cable with compatibl e FG connecto r For cameras wher e standard cables ar [...]

8 states that the CB-012-00 kit was appropriate for single channel digital cameras of up to 20-bits) The kit contains a cable with 37 twisted pairs of wires terminated on one end by a 100-pin connector, whi ch mates to the PXD1000. On the other end the wires have been prep ared for attachin g to a connector (which you must supply) that mates to you[...]

9 Data6(+) 42 Tan/Y ellow 92 Yellow /Tan Data6(-) 43 NC 93 NC 44 NC 94 NC 45 NC 95 NC 46 NC 96 NC 47 NC 97 NC 48 NC 98 NC GROUN D 49 Tan/Orange 99 Orange/Tan +12V_FUSED GROUN D 50 Orange/Pink 100 Pink/O range +12V_FUSED Making a data cable for 11-bit t o 32-bit Cam eras Cable kit CB-011-00 is appropriate for cam eras from 11 data bits to 32 data bi[...]

10 Data19(+) 29 Blue/Green 79 Green/Blue Data19(-) Data18(+) 30 Gr een/Purple 80 Purple/Green Data18(-) Data17(+) 31 Gray/Purple 81 Purple/Gray Data17(-) Data16(+) 32 Gray /Green 82 Green/Gray Data16(-) Data15(+) 33 Blue/White 83 White/Blue Data15(-) Data14(+) 34 Brown/T an 84 Tan/Brown Data14(-) Data12(+) 35 Tan/Pink 85 Pink/Tan Data13(-) Data13(+[...]

11 Regardless of if your cable ends up bein g longer or shorter than 3 meters, all cable wires must be of eq ual length due to the extreme ly sensitive timing cha racters of the Frame Grabber a nd Digital Camer a interfa ce. The PXD Configuration Application Imagenation provides a program called PXD Configuration Application which is used to create[...]

12 d) Exposure and Strobe Timing Setting s (Exposure control Type set to strobe) i. Exposure t y pe a. Strobes set the fr ame grabber to gener ate signals at the strobe0 and strobe1 pins. These signals can b e used to program the e xposure or integration time of the camera . b. Fixed Ex posure means that the cam era’s exposure is not adjustable. [...]

13 i. Pulse Width: in number of clocks ii. Output polarity: Low or High true iii. Strobe#l wire: Output the HDrive signal to strobe1 and strobe1 ++1 wires in addition to the HDr ive wire iv. Clocks from Data to Hsync: number of clocks from last pix el on the line to following horizontal sync. v. For cameras t hat use Vertical Drive, the fr ame grab[...]

14 Dim image : • With smooth gradat ions -Try Increase lightin g, check cam eras F- Stop, Exposure control settings. • With banding-Check cable wiring of the data bits. Remember th at Imagenation biases the Data connection to the uppe r bits of each channel. If this is wrong you ma y not be seeing all the bits. All Black image: § Check cable w[...]

15 Digital Frame Grabber Infor mation The WEN Signal This single is an input to the frame grabber from the camera and is typically tr eated as a F TV (Field Data Valid). This sig nal is availa ble on I/O line 1. The signal can be set to tri gger a grab using the SetTriggerSource function. Data line Options 8 bit, 10 bit, 12 bit, 14 bit, 16 bit , 32[...]

16 to debounce this signal. The debounce fl ag can be set using the SetTriggerSource function. If the debounce flag is set then two tri gger signals are required. One signal is set to TR I GGERP line 14 of the I/O connector. The other is sent to TR IGGERN line 15 of the I/O connector. By sending the signa l to TRIGGERP the internal sta te will be s[...]

17 Pixel C lock Source Most digital cameras provide their own pix el clock to the frame grabber but in situations where a cust om frame and pixel rate are r equired, the fram e grabber must create the pi xel clock for th e camera. A pixel cl ock source provides more flexibility for the syste m integrator.[...]

18 Pixel Swizz ling The second aspect of multi-channel c ameras that can cause p roblems for digital frame grabbers is the ordering of the received pixels. Figure 1 illustr ates how the Dalsa CA-D4 two-c hannel camera transmits pixels to the f rame grabbe r. Two pixels are recei ved on the first pi xel clock; pix el 0 from the top l eft edge of the[...]

19 Image data as transferr ed directly to system memory from a Dalsa CA-D4 two- channel camera and 2b after h ardware reorderin g into scan line order b y a fram e grabber. To alleviate this pr oblem, many digital f rame grabbers inc orporate pixel swizzling circuitry to dyna mically rearrange the pixels into scan line order so tha t the applicatio[...]

20 A modern digital frame grabb er should be able to convert data from camer as with each of these fo rmats into scan l ine ordered ima ges in system memor y. Resolution The ability of a camera to resolve details in a scene is de pendent on the type of lens employed and the relation of the camer a to the scene. Ther efore manufacturers often descri[...]

21 • Verify that proper li ghting exists and that the camera shutter is open and allowing sufficient lig ht into lens. • Verify that exposure time is not too shor t. • Verify camera is in free-runnin g default mode option mode. • Verify that all “enable” lines are conne cted for the cam era. For ex ample, some cameras have a line called[...]

22 • Graduations have stripes Possible Cause/Solution: • If any of the symptoms described above ex ist, try reversing the Pixel Clock pins. The pins which should be swapped will depend on whether the pix el clock is being driven b y the camera (most common) or is driven b y the Frame Grabber. For example , if the came ra is driving the pixel cl[...]