std_msgs/Header header
int32 person_id
string person_name
int32 face_id
string speaker_id
string uwb_anchor_id
geometry_msgs/Point position
float32 distance
float32 bearing_deg
uint8 state
uint8 STATE_UNKNOWN=0
uint8 STATE_APPROACHING=1
uint8 STATE_ENGAGED=2
uint8 STATE_TALKING=3
uint8 STATE_LEAVING=4
uint8 STATE_ABSENT=5
float32 engagement_score
builtin_interfaces/Time last_seen
int32 camera_id
