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Autofocus
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Autofocus is implemented using a one-push-autofocus command, which is executed after any pan, tilt or zoom change.
A focus request disables autofocus.
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Autoiris
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Autoiris is disabled on iris and goto-preset requests.
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Digital zoom
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In order to enter the digital zoom range, a zoom request must be sent when at full optical zoom.
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Initialization
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If the ptz unit is not physically connected during camera mapping (including driver installation) or is reset during operation, the unit may need to be reinitialized. This is most easily accomplished by remapping the camera (uncheck and recheck the corresponding "Use with source" checkbox under "Video Source Configuration").
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Preset positions and digital zoom
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Digital zoom is temporarily disabled when saving a preset position, since it's not possible to save a preset position in the digital zoom range.
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| Parameter |
Description |
Range |
| Device ID |
The id of the PTZ unit. |
1-32 |
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Default values have been optimized for the TK-C676E unit.
| Parameter |
Description |
Range |
| Move speed |
Current maximum pan and tilt speed |
1-100 |
| Move pan per degree |
Calibration constant for pan. Higher values give larger movements. Calibrate at the most commonly used speed, by adjusting the value until a 360 degree pan request (e.g. "rpan=360") pans (exactly) 360 degrees. |
1-3000 |
| Move tilt per degree |
Calibration constant for tilt. Higher values gives larger movements. Calibrate at the most commonly used speed, by adjusting the value until a 90 degree tilt request (e.g. "rpan=90") tilts (exactly) 90 degrees. |
1-3000 |
| Zoom speed |
Current zoom speed. NOTE:The set value is mapped onto 4 discrete speeds. |
1-100 |
| Zoom per unit |
Calibration constant for zoom. Higher values give greater zoom changes. Calibrate at the most commonly used zoom speed, by confirming that a maximum zoom request performs a maximum zoom. |
1-600 |
| Focus speed |
Current focus speed. NOTE:The set value is mapped onto 4 discrete speeds. |
1-100 |
| Focus per unit |
Calibration constant for focus. Higher values give greater focus changes. Calibrate at the most commonly used focus speed, by confirming that a maximum focus request performs a maximum focus change. |
1-600 |
| Iris time |
Calibration constant for iris (time in ms for maximum iris change). Higher values give greater iris changes. Calibrate by confirming that a maximum iris request (e.g. "riris=9999") at one extreme (e.g. full iris close) takes you to the other. |
1-30000 |
| Current field angle |
Calibration constant for click-in-picture (center.) Higher values give larger movements. Calibrate at minimum zoom (i.e. zoom wide) and at the most commonly used speed, by making sure that clicking on an object brings the object to the center of the image. |
1-1800 |
| Pan bar range |
Range (in degrees) to use with panbar requests. Clicking at the very end of a bar will pan half this value in the corresponding direction. |
1-720 |
| Tilt bar range |
Range (in degrees) to use with tiltbar requests. Clicking at the very end of a bar will tilt half this value in the corresponding direction. |
1-720 |
| Digital zoom max |
Maximum digital zoom. |
1x (off), 2x, 4x, 6x, 8x, 10x |
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Mechanical limits
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There are no mechanical limits for this driver.
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