*Perspective Chapter: Intelligent Construction Technology of Ballastless Track for High-Speed… DOI: http://dx.doi.org/10.5772/intechopen.109611*

The measurement and control is mainly realized by a GeoCom interface, and a communication unit is composed of the request of the mobile terminal and the response of the measuring robot. The GeoCom interface is a dynamic link library that encapsulates multiple secondary development functions. When developing the software, the above encapsulation functions can be used to realize the calibration, rotation control, automatic target recognition, accurate ranging, angle measurement, etc. of the measuring robot. It is developed based on an Android platform and uses ASCII protocol to realize control communication with the measuring robot. The Bluetooth communication module of the mobile terminal is used to establish the information channel with the measuring robot and send ASCII commands through GeoCom interface technology. The measuring robot receives ASCII character commands, and returns a response string after protocol analysis. It can then realize the basic measurement and control operations such as equipment initialization, instrument connection, station setting, parameter configuration, verification, measurement, upload, port release, etc.

With the SQLite database as the data organization and storage carrier, the wireless control of the measuring robot is realized through ASCII command mode, and the automatic measurement of track slab fine adjustment is realized. The main functions of the software include the following functions: engineering information configuration of track slab fine adjustment operation, parameter setting of track slab fine adjustment operation system, layout data interface configuration, calibration of fine adjustment standard frame, track slab overlapping orientation, track slab fine adjustment measurement, fine adjustment result data upload, etc. (**Figure 10**).

The measured deviation is fed back to the developed automatic fine track slab adjustment robot in real time, and the electric control system is combined with the servo motor to automatically execute the fine adjustment command without manual adjustment. The fine adjustment deviation and adjustment time are reduced, and the precision of fine adjustment is guaranteed. Compared with manual fine adjustment, the comprehensive efficiency is increased by more than 3 times (**Figure 11**).

**Figure 10.**

*Functional structure of wireless intelligent fine adjustment software for track slab.*

**Figure 11.** *Schematic diagram of track slab fine adjustment robot scheme.*

### **3.3 Track panel and rail fine adjustment based on data drive**

Based on the geometric dimension data of the track in the design results, the automatic measurement of the track centerline, the three-dimensional coordinates of the left and right rails, and the calculation of the lateral and vertical deviations of the track is determined. Based on the developed track inspection trolley information equipment, the automatic collection of track geometry and position data is determined. The thickness distribution of track bed slab is analyzed in real time by measuring the rail top elevation information and combining the elevation data of base slab/bearing layer; determine the year-on-year analysis of the fine adjustment data of the rail panel, the retest data after pouring, and the fine adjustment data of the rail, so as to provide support for obtaining the variation law of the construction deviation of the rail panel, improving the construction control process, and also provide a pre-foundation for the subsequent fine adjustment of the rail (**Figure 12**).
