User manual

ARECONT VISION USER MANUAL 66

Arecont Vision 425 E Colorado St, 7

Floor Glendale, CA 91205 8/1/2012

www.arecontvision.com

resolution in terms of the number of pixels)some zones may not correspond to the active image area

(valid value 64)

 mdzonesize – size of motion detection zones measured in number of 32x32 pixel blocks in each zone;

All zones are squares of the same size from 7x7 to 15x15 (valid values are 7 to 15 for AV1300 and

AV2100 and 8 to 15 for AV3100 and AV3130)

 mdlevelthreshold – motion detection threshold that determines the sensitivity to local inter-frame

brightness changes (valid values are 2…31). Lower settings may cause false motion detection due to

noise. This parameter corresponds to “Level” under the “Motion Settings” in the AV100 Video

System GUI.

 mdsensitivity – sensitivity of the motion detection to sudden overall lighting changes. This prevents

false triggering due to a sudden overall brightness change that triggers motion detection in a large

number of zones simultaneously. If more than this number of zones have motion it is assumed that

the change is due to lighting

change and the detected motion is ignored. Recommended values are

40 for AV3100/AV3130, 30 for AV2100 and 20 for AV1300. This parameter corresponds to “Limit”

under the “Motion Settings” in the AV Video System GUI.

 mddetail – allows controlling the size of detectable moving objects. The value is the number of 32x32

sub-zones within each zone that should contain motion for the entire zone to be considered to contain

motion. (valid values are 1 through square of mdzonesize). This parameter corresponds to “Detail”

under “Motion Settings” in AV Video System GUI.

 mdprivasymask – Privacy matrix. An 8-byte array, where each byte corresponds to one row of motion

detection zones. Each bit in a byte enables motion detection in a corresponding zone, if set to ‘1’.

Leftmost zone is controlled by MSB, rightmost zone by LSB.

Example

set?mdprivasymask=2a8f3d135b71ee04 results in the following enabled zones

relative to camera image:

01010100

11110001

10111100

11001000

11011010

10001110

01110111

00100000

 mdresult – Motion detection information returned by the camera; The return value is “no motion” if

motion has not been detected, otherwise the motion detection information is returned in the following

format:

mdresult=<SP><hexadecimal byte0><SP><hexadecimal byte1>...<SP><hexadecimal byte63>