One-chip microcomputer based simulation test box for railway four-display of automatic occlusion and the method thereof

The invention provides a one-chip microcomputer based simulation test box for railway four-display of automatic occlusion and the method thereof. The test box comprises a box body, a panel, a power supply module in the box body, a single-chip machine control module, an occlusion partition state detection circuit, an occlusion partition light strip control circuit, and a signaling machine lighting circuit. The panel is provided respectively with an occlusion partition state switch, an occlusion partition light strip and signaling machine signal lights. The method is performed through the following steps: inputting an occupied state or an idle state for the electric circuit of a simulated track through the dial of the occlusion partition state switch; receiving through the one-chip microcomputer the state information inputted by the occlusion partition state switch; controlling respectively the occlusion partition light strip control circuit and the signaling machine lighting circuit to output corresponding con