Abstract: A navigation errors correction method based on magnetic nail positioning includes a magnetic nail is set within the moving area of AGV, and an information-bearing magnetic field mode is established according to magnetic field formed and stored in a navigation device. The method further includes a navigation device in AGV guides movement of AGV; a magnetic sensor on AGV detects features of magnetic field on movement track. Contrast features of magnetic field detected by magnetic sensor with those of magnetic field mode prestored by navigation device, and reckon the relative position of magnetic nail and AGV. Based on relative position of magnetic nail and AGV, reckon current position of AGV, the navigation device adjusts position and orientation of AGV and guides AGV to repair movement errors based on reckoning position of AGV.

Abstract: A navigation errors correction method based on magnetic nail positioning is disclosed in present invention, which includes the following steps: (a). magnetic nail is set within the moving area of AGV, and an information-bearing magnetic field mode is established according to the magnetic field formed by said magnetic nail and stored in a navigation device; (b). Said navigation device in the AGV guides the movement of AGV; (c). Magnetic sensor on the AGV detects the features of magnetic field established by magnetic nail on the movement track; (d). Contrast features of magnetic field detected by magnetic sensor with those of magnetic field mode prestored by the navigation device, and reckon the relative position of magnetic nail and the AGV; (e). Based on the relative position of magnetic nail and the AGV, reckon the current position of the AGV; (f).