ANPR 
 
© Nedap AVI, P.O. Box 103, NL-7140 AC GROENLO  Page 27 of 27 
 
B  TCP TAG IDENTIFIER OVERVIEW 
TAG WEB  Description  TAG-ID  TAG-LEN  DATA TYPE 
%DATE  Date string YYYY-MM-DD. E.g. '2011-07-28'  14000  12  STRING 
%TIME  Time string HH-MM-SS. E.g. '12-34-56'  14001  16  STRING 
%NETBIOSNAME  NetBiosName. E.g. 'NEDAP_ANPR1'  14002  32  STRING 
%PLATE  Number plate, including country. E.g. '46HVR9-NLD'  14003  24  STRING 
%PLATE_STRING  Number plate, without country. E.g. '46HVR9'  14004  20  STRING 
%PLATE_COUNTRY  Number plate country. E.g. 'NLD'. See appendix A.  14005  4  STRING 
%NREAD  Number of times the number plate was read.  14006  4  INT32 
%IMAGENAME  Image file name.  14007  128  STRING 
%IMAGEPATH  image file path.  14008  128  STRING 
%TRANSIT_ID  Transit counter .  14009  4  INT32 
%PLATE_MIN_X  Upper left X-coordinate of the car plate rectangle.  14010  4  INT32 
%PLATE_MIN_Y  Upper left Y-coordinate of the car plate rectangle.  14011  4  INT32 
%PLATE_MAX_X  Lower right X-coordinate of the car plate rectangle.  14012  4  INT32 
%PLATE_MAX_Y  Lower right Y-coordinate of the car plate rectangle.  14013  4  INT32 
%SPEED  RFU  14014  4  INT32 
%CLASS  RFU  14015  4  INT32 
%CLASS_STRING  RFU  14016  32  STRING 
%SN  ANPR serial number.  14017  4  INT32 
%DIRECTION  RFU  14018  12  STRING 
%NET_TRIG_ID  String received using ethernet trigger.  14019  32  STRING 
%IMAGE_BW  Camera image in jpeg format.  14020  IMG-DIM  BUFFER 
%IMAGE_COL  RFU  14021  IMG-DIM  BUFFER 
%OCRSCORE  Score of the OCR regarding the number plate reading.  14022  4  INT32 
 
All strings are null-terminated. 
 
The values of IMG-DIM for BUFFER data are not necessarily multiples of 4 bytes, yet the occupied buffer space is 
always a multiple of 4 bytes, this in order to keep structure alignment. For example: IMG-DIM is 34231 bytes. But 
data buffer sent is larger (so as to keep 4 bytes-alignment) and the result is a 34232 bytes image. When using the 
IMG-DIM value to skip to next datum of the message, this should not be overlooked.