Method, device, equipment and system for detecting light-emitting period of navigation mark

The invention provides a light emitting period detection method of a navigation mark. The method comprises the steps of receiving a light signal of the navigation mark; converting the optical signal into a level signal, inputting the level signal into a timer/counter to calculate and obtain duration data of the level signal, and storing the duration data; and extracting the stored time length data, drawing an image curve according to the time length data, and sending the image curve to a display module for display. The optical signal is received by the sensor and converted into the level signal, and the timer/counter is directly adopted to calculate the duration data, so that the number of units in the equipment is reduced, the structure is simplified, and the cost is reduced on the premise of ensuring the accuracy of optical signal period detection. The invention further provides a light emitting period detection device, equipment and system of the navigation mark. 本申请提供一种航标的发光周期检测方法，包括：接收航标的光信号；将所述光信号转换的电平信