Abstract: A fabricated rapid construction platform for a bridge, wherein the construction platform comprises a fixing frame, an upper-layer tubular pile position control structure (6), a lower-layer tubular pile position control structure (7), and a console; the fixing frame comprises a bottom rail platform (1), supporting posts (3), a top operation platform (2), and several supporting legs (4); the upper-layer tubular pile position control structure (6) and the lower-layer tubular pile position control structure (7) are provided between the bottom rail platform (1) and the top operation platform (2); the upper-layer tubular pile position control structure (6) comprises two sub-structures arranged symmetrically about the central axis of a second through hole, and each sub-structure comprises a braking device (61), a vertical control arm (63), and a horizontal control arm (62).

Abstract: The passive combined indoor positioning system and method based on an intelligent terminal sensor, and is applied to the technical field of real-time positioning, can include a data collection module, a dead reckoning module, a geomagnetic matching determining module, a single-point matching module, a sequence matching module, a single-point positioning module, a sequence positioning module, and an error correction module. The system collects sensor data of a current location by using an intelligent terminal, and performs dead reckoning and geomagnetic matching based on the sensor data of the current location, so as to obtain a fusion positioning result of the current location through particle filter.