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Command Line Interface (CLI)

32

Function

“LED-Panel.exe -isRunning” checks if the measurement is currently running.

Return parameters

Return value

Description

0

the device is stopped

1

a measurement is running

Table 1

Example

LED-Panel.exe

–isRunning

After the execution of the command the device will return the value 0 or 1 representing the
current measurement state.

6.2.10 Reset Measurement

Function

reset

Description

“LED-Panel.exe -reset” clears all the lighting LEDs and prepares the device for a new
measurement.

6.2.11 Get Camera Trigger Input State

Function

getCameraTrigger

Description

“LED-Panel.exe -getCameraTrigger” returns the current state of the digital input “Camera
Trigger

”.

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Summary of Contents for LED-Panel V4

Page 1: ...Image Engineering GmbH Co KG Im Gleisdreieck 5 50169 Kerpen Horrem Germany T 49 2273 99991 0 F 49 2273 99991 10 www image engineering com LED Panel V4 User Manual 27 March 2020 ...

Page 2: ...etting the LEDs running direction 9 Display Brightness 10 4 MEASUREMENT METHODS 11 4 1 Shutter lag without autofocus time 11 4 2 Shutter lag with autofocus time 12 4 3 Exposure Time 13 4 4 Video recording rate Frame rate 13 4 5 Speed of multi shot mode 14 4 6 Rolling shutter speed 15 5 OPERATING INSTRUCTIONS SOFTWARE 17 5 1 Requirements 17 5 2 Software installation 17 5 3 Set up hardware and softw...

Page 3: ...sabled State of the external input Camera Trigger 35 6 2 17 Enable Disable the external input Stop Trigger 35 6 2 18 Get the Enabled Disabled State of the external input Stop Trigger 36 6 2 19 Set the Intensity of the Display Backlight 36 6 2 20 Get the Intensity of the Display Back Light 36 6 2 21 Set the Direction of the LEDs for Response Time and Exposure Time Modes 37 6 2 22 Get the Direction ...

Page 4: ...Image Engineering LED Panel V4 Seite 4 von 44 9 TRADEMARK AND COPYRIGHT 44 9 1 Trademarks 44 9 2 Software by Third Parties 44 9 3 Copyright Information 44 ...

Page 5: ...onnection and control the LED Panel directly at the front panel you can go up to 50 kHz operation Therefore you have the choice of whether to operate the device in USB or non USB mode Via USB each mode can be triggered individually and the direction of the LED sequence can be changed IMPORTANT INFORMATION Read the manual carefully before using the device Inappropriate utilization may cause damage ...

Page 6: ... from the Image Engineering support and when connected to the power supply 1 4 Eye safety If you use the LED Panel infrared version please make sure to wear the supplied safety googles according to IEC 62471 2009 Do not look directly into the emitted light or look through the optical LED system this can cause irreversible eye damage 2 GETTING STARTED 2 1 Scope of delivery LED Panel V4 power supply...

Page 7: ... Switch to activate deactivate USB connection USB Mini port connection to PC Stop trigger 3 5 mm TRS connector signal input Camera trigger 3 5 mm TRS connector signal input iQ Trigger before Digitus 6 3 mm TRS connector signal output Defocus 6 3 mm TRS connector signal output Power switch Power connection The square array of 100 LEDs is segregated in ten rows each consisting of ten LEDs The LEDs l...

Page 8: ...ither an external single or internal continuous trigger The trigger mode can be changed by pressing the button Trigger The trigger is indicated on the LCD display in the top row Cont Trigger Continuous Sngl Trigger Single For the external operating mode a remote release is connected to the LED Panel When connecting to the CAMERA TRIGGER input the LED Panel starts by pressing and stops by releasing...

Page 9: ... 12 34 Figure 1 means that the LEDs starts from the left top edge of the LED matrix runs to the right top edge than jumps to the left of the second top line and runs again from the left to the right and so on to the bottom of the LED matrix The indication 12 12 means that a column of 10 LEDs starts from the left and runs to the right Mode response time exposure time frame rate roll shutter Measure...

Page 10: ...splay Brightness The brightness of the display can be modified by using the rotary knob Press and hold the rotary knob until the message Back light and XX will be shown on the display Turn the rotary knob to change the back light intensity ...

Page 11: ...ust be connected to the release button on the camera the camera must be focused and finally both buttons must be pressed After the shutter lag has passed the camera takes a picture of the running LED Panel The time passed since the micro switch was pressed can be read with the aid of the lighted LED s in this picture Figure 2 Because the two buttons have a different release point a time lag can oc...

Page 12: ...nfinity Afterwards a picture of the LED Panel is taken with the aid of the micro switch After the time for the auto focus and shutter lag has passed the camera takes a picture of the running LED Panel The time passed since the micro switch and the release button was pressed and autofocus was completed can be read with the aid of the lit LEDs in this picture The autofocus time can be calculated as ...

Page 13: ... the lit LEDs Example Camera exposure time 1 10 s LED Panel settings 3 00 ms 333 Hz 34 LEDs are lit Exposure time 34 3 00 ms 102 ms 1 10 s 4 4 Video recording rate Frame rate This mode makes the frame rate measurement of video recording devices possible The LED Panel is set to the frame rate mode Frame rate and is being recorded on the camera The frequency of the LED Panel must be now counterbalan...

Page 14: ...fined Afterwards pictures of the LED Panel are taken in the multi shot mode The speed of multi shot mode can be calculated from the distance between the turned on LEDs in two consecutive pictures Figure 6 The frequency of the LED Panel does not match the frame rate of the camera flickering LEDs Figure 5 The frequency of the LED Panel matches the frame rate of the camera LEDs glow permanently Figur...

Page 15: ...at pushes both buttons micro switch and camera release button in less than 5 milliseconds guaranteed The so called iQ Trigger activates the camera release mechanically The iQ Trigger is available as a separate product In the rolling shutter operating mode all ten rows of LEDs are operated simultaneously This means that a whole column of LEDs runs across the panel instead of single LEDs Cameras wit...

Page 16: ...D Panels in Exposure Time mode one in the top left corner and one in the bottom right corner For detailed information on how to set up two LED Panels with you device under test please see the following two infographics Figure 12 internal wiring Figure 13 setting up for timing measurement ...

Page 17: ...gs 5 3 Set up hardware and software for software control Connect the power cord to the power supply on the side of LED Panel V4 Connect the power supply to electricity Connect the USB cable to the LED Panel V4 and to your PC Switch on LED Panel V4 by setting the power switch to I The power switch is located beside the power supply 5 4 Software activation Figure 14 Start the iQ LED software by clic...

Page 18: ... a series of images For the analysis of imgaes the LED Panel software provides a convenient way to evaluate camera timing such as shooting release time lag with the assistance of the LED Panel device according to ISO 15781 The software supports all common image file formats like JPEG PNG TIFF and BMP The results of the analysis can be saved as plain text txt and or XML file for further processing ...

Page 19: ... image belongs to a measurement You can create a new measurement by dropping images on the empty area or by using the plus button To add an image to an existing measurement drag and drop it over the file names of the desired measurement or right click on this measurement to open a context menu To delete a single file select it and click the delete button Figure 16 or press Delete on your keyboard ...

Page 20: ...ISO 15781 Note Ensure that the frequency setting matches the device setting that was used when capturing your images LED Panel Figure 18 In this tab Figure 18 you can control multiple connected LED Panels At first choose your desired operating mode Define the movement direction of the LEDs Single LED the LEDs light up in succession for modes Response Exposure time and Framerate Multiple LED all LE...

Page 21: ...ware button of a camera precisely and at defined moments If iQ Trigger is connected to an LED Panel it can be controlled by LED Panel software as well It is possible to automatically take single images or series by an interval timer Figure 19 LED Panel and iQ Trigger will be synchronized LED Panel starts by releasing the iQ Trigger using the play button For detailed information on setting up the i...

Page 22: ...ed by iQ Trigger value ranges from 0 1s to 25s 5 5 3 Image view The image view panel Figure 15 shows the image that is currently selected in the file list With the button you can zoom in The button resets the zoom level to fit the view panel After a successful analysis you can toggle the highlighting of the detected LEDs in the image with the eye button 5 5 4 Meta data Figure 21 The meta data pane...

Page 23: ... four LED Panels there will be four LED Panel entries for this particular image with the measured time for each one of them By clicking the arrow button in the top right corner the result tree can be collapsed or expanded 5 5 6 Menu bar The menu bar Figure 15 provides some quick accessible options File Open opens the Open file dialog Quit closes the application Options Export opens the export sett...

Page 24: ...LED Panel The status bar Figure 15 at the bottom of the application shows the serial number s of the connected LED Panel By clicking a serial number the specific LED Panel display will start flashing 5 6 Measurement Prior to analyzing images with the LED Panel software there are a few things you should keep in mind to ensure proper functioning Make sure that the images are exposed properly Under o...

Page 25: ...images To start the analysis please click the Start button under the control panel A progress bar above the image view will display the analysis progress It will disappear immediately when the analysis was finished Now you can see the detected LEDs in the image view Figure 15 On the right side the results will appear and they will be written into result files in the selected folder ...

Page 26: ...b shows statistics of the different measurements like mean value fastest time slowest time and standard deviation Additionaly a bar plot visualize the calculated results By check or uncheck the checkbock in the results tree you can display your favored plot ...

Page 27: ...ble a parameter all separated by white spaces The executable file is always LED Panel exe and can be used without file extension exe NOTE Options are case sensitive Every option has to start with dash or double dash Example LED Panel start or LED Panel start Usage of option with more than one argument LED Panel setTrigger arg1 setTrigger arg2 For more information LED Panel h or LED Panel help Exam...

Page 28: ...tion 1 Response time measurement xx x μs ms s 2 Exposure time measurement 1 x s 3 Frame rate measurement Hz 4 Rolling shutter mode 5 All LEDs on Example LED Panel exe setMode 2 After the execution of this command the LED Panel will change into the exposure time measurement mode 6 2 2 Get Operation Mode Function getMode Description LED Panel exe getMode returns the current operation mode ...

Page 29: ...of this command the device will return the numerical value of the activated operation mode 6 2 3 Set Trigger Mode Function setTriggerMode trigger Description LED Panel exe setTriggerMode trigger sets the trigger mode Parameters trigger Description 1 internal continuous trigger 2 external single trigger Example LED Panel exe setTriggerMode 1 After the execution of this command LED Panel will change...

Page 30: ...ical value of the activated trigger mode 6 2 5 Set LEDs Switching Time Function setTime time Description With the function LED Panel exe setTime time it is possible to set switching time cycle duration of the LED Panel Parameters Valid range from 0 0002 9 9 s Value precision 0 0002 0 001 steps of 0 00001 s 0 001 0 01 steps of 0 0001 s 0 01 0 1 steps of 0 001 s 0 1 1 0 steps of 0 01 s 1 0 9 0 steps...

Page 31: ...el exe getTime the device will return the cycle duration in seconds or the index of the set time in case of exposure mode 6 2 7 Start Measurement Function start Description LED Panel exe start starts measurement ignoring the camera trigger input from the camera micro switch 6 2 8 Stop Measurement Function stop Description LED Panel exe stop stops the measurement without resetting the LEDs 6 2 9 Ge...

Page 32: ...nning After the execution of the command the device will return the value 0 or 1 representing the current measurement state 6 2 10 Reset Measurement Function reset Description LED Panel exe reset clears all the lighting LEDs and prepares the device for a new measurement 6 2 11 Get Camera Trigger Input State Function getCameraTrigger Description LED Panel exe getCameraTrigger returns the current st...

Page 33: ...t Stop Trigger is activated Table 3 6 2 13 Get the Number of Currently Activated LED Function getCurrentLED Description With the function LED Panel exe getCurrentLED it is possible to read which LED is currently turned on respectively the number of switching periods occurred after activating the Camera Trigger input Return parameters After the execution of the command LED Panel exe getCurrentLED t...

Page 34: ...s in total 6 2 14 Put the LED Panel in sleep mode wake from sleep mode Function setSleepMode mode Description LED Panel exe setSleepMode 1 puts the device in sleep mode LED Panel exe setSleepMode 0 wakes the device from sleep mode 6 2 15 Enable Disable the external input Camera Trigger Function setCameraTrigger enable Description With the function LED Panel exe setcamtriggeren enable it is possibl...

Page 35: ...ce returns the current activation state of the external input Camera Trigger Return parameters Return value Description 0 digital input Camera Trigger disabled 1 digital input Camera Trigger enabled Table 5 6 2 17 Enable Disable the external input Stop Trigger Function setStopTrigger enable Description With the function LED Panel exe setStopTrigger enable it is possible to activate or deactivate t...

Page 36: ...lues Return value Description 0 digital input Stop Trigger disabled 1 digital input Stop Trigger enabled Table 7 6 2 19 Set the Intensity of the Display Backlight Function setDisplayBrightness XXX Description With the function LED Panel exe setDisplayBrightness XYZ the backlight illumination of the LCD display light can be changed in 1 steps from 0 to 100 Parameters XYZ backlight intensity in step...

Page 37: ... for Response Time and Exposure Time Modes Function setDirectionSingle X Description LED Panel exe setDirectionSingle X switches the desired moving direction of LEDs There are eight possible directions Parameters X Description 1 Starting from the top left run from left to right and to the bottom 2 Starting from the top right run from right to left and to the bottom 3 Starting from the bottom left ...

Page 38: ...irection of the LEDs for Rolling Shutter Mode Function setDirectionMulti value Description LED Panel exe setDirectionMulti value switches the desired moving direction of the LED columns each one consisting of ten LEDs There are four possible directions Parameters value Description 1 The column moves from left to right 2 The column moves from right to left 3 The column moves from top to bottom 4 Th...

Page 39: ...t applicable They are reserved for future design XX switching time s XX switching time s XX switching time s XX switching time s 01 1 100000 20 1 2000 39 1 100 58 0 4s 02 1 80000 21 1 1600 40 1 80 59 0 5s 03 1 64000 22 1 1500 41 1 64 60 0 6s 04 1 50000 23 1 1300 42 1 60 61 0 8s 05 1 40000 24 1 1250 43 1 50 62 1s 06 1 32000 25 1 1000 44 1 40 63 1 25s 07 1 25000 26 1 800 45 1 32 64 1 3s 08 1 20000 2...

Page 40: ...e device in the Exposure Time mode Return parameters After the execution of the command LED Panel exe getTime the device will return a one or two digits value XX of the switching time where XX is the value of the switching time from the Table 3 For instance Return value 17 means that the switching time is 1 3200s 6 2 27 Trigger iQ Trigger LED Panel V4 only Function setTrigger Description If a iQ T...

Page 41: ...lle konnte nicht gefunden werden Fehler Ve rweisquelle konnte nicht gefunden werden 6 2 29 Set auto release LED Panel V4 only Function setAutoRelease Description Modern camera systems especially mobile phones often take continously photos in the background to avoid shooting time lag and provide some convenience features If the user hits the camera release button it can occure that a buffered photo...

Page 42: ... roll time LED Panel V4 only Function setPostRollTime Description The LED Panel keeps running for a certain time after the iQ Trigger was triggered by using LED Panel setPostRollTime duration Value 0 30000ms Example LED Panel setPostRollTime 2000 ...

Page 43: ...al components are included in the LED Panel Observe your national regulations Make sure that the LED Panel cannot be used by third parties after disposing of it Contact Image Engineering if assistance for disposal is required 8 TECHNICAL DATA SHEET See annex for the technical data sheet It can be downloaded at the website of Image Engineering as well www image engineering com ...

Page 44: ...Y THE RESPONSIBILITY OF THE CONSUMER TO DETERMINE THE SOFTWARE S SUITABILITY FOR A PARTICULAR PURPOSE OR USE IMAGE ENGINEERING GMBH CO KG AND ANYONE ELSE WHO HAS BEEN INVOLVED IN THE CREATION PRODUCTION DELIVERY OR SUPPORT OF THIS SOFTWARE WILL IN NO EVENT BE LIABLE FOR DIRECT INDIRECT SPECIAL CONSEQUENTIAL OR INCIDENTAL DAMAGES RESULTING FROM ANY DEFECT ERROR OR OMISSION IN THE DISKETTE OR SOFTWA...

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