Signal control unit, signal control device and unmanned ship

The invention is applicable to the technical field of automation equipment and provides a signal control unit, a signal control device and an unmanned ship. The signal control unit comprises a protective shell, a main board, a back board and a plurality of ports. A containing cavity is formed in the protective shell. The main board is vertically arranged and detachably installed in the containingcavity. The back board is arranged in the containing cavity. The ports are used for achieving different functions. The length direction of the main board is parallel to the length directions of the protective shell and the back board. The back board is electrically connected with the main board through the ports. According to the invention, compared with the prior art, the occupied space is small,and the overall size is small. The length direction of the main board is parallel to the length direction of the backboard, so that the area of the main board projected on the backboard is relativelylarge. As a result, the nu