Investigation on Key Techniques of Measurement Device of Position and Attitude Applied in Large-Scale Pushing Bridge Construction Machinery

The problem about measurement of position and attitude of the existing pushing railway bridge construction engineering machinery needs to be solved. The paper designs two kinds of measurement devices adopting phototransistors array and CCD aimed at the demands of pushing railway bridge construction. Multiple serial port communication technique is used to connect devices with industrial PC. Effectiveness of these two kinds of devices has been validated in practice, and the results review that they can not only meet the needs of construction, but also can be used under sunlight circumstances. The measurement system and devices improve the efficiency of pushing railway bridge construction greatly and provide valuable reference for other large-scale engineering machinery´s measurement of position and attitude.