Baud rate：Communication protocol Select the serial port, the serial port baud rate is 9600K bps,
can not be modified.
Protocol：Camera and recording and broadcasting host communication between the serial port or
network, need to select UDP, TCP and a serial port, the default selection: UDP.
Instruction format：The communication command format between the camera and the master
station supports the choice of hexadecimal or string format, and all status codes are set freely. The
default format is hexadecimal.
Broadcasting server：Used to configure the IP address of the master host and the port number of
the receiving command. Address Default: 192.168.100.200, port default: 3456.
Switch automatically: the camera receives the [Switch Auto] command, the tracking mode
switches to automatic, default: ff 00 00 00 00 01, can be modified.
Switch manual: the camera receives the [switch manual] command, the tracking mode is switched
to manual, the default value: ff 00 00 00 00 02, can be modified.
Broadcasting code send mode
Select the number of times to send the guide code, selectable: only send once, repeat three times,
continue to send.
You can choose [external broadcasting] and [internal broadcasting] one of them, the default is
Outside Broadcasting：There are two states (there is action, no action), student machine has four
states (students standing, close-up in place, the students have three kinds of status, Students sit down,
multi-target), the teacher machine has five states (on the podium, still, move, the next podium, multi-
target), recording and broadcasting host needs to receive the status of the three cameras to guide, for
example, when the teacher on the rostrum When switching to the teacher close-up picture, the teacher
when the platform to switch to the student panorama picture; when the student close-up when the switch
to the student close-up screen, when the student multi-target switch to the student panorama picture.
Internal broadcasting：Teacher camera will receive the current state of the blackboard, students,
teachers, and from high to low priority to the recording and broadcasting host to send the switch code,
recording and broadcasting host to receive the switch code directly after the instructions can be directed
to the screen, The recording and broadcasting host does not need to judge the current status. That is, the