3results about How to "Ensure safe driving" patented technology

The utility model discloses a special limit bolt for a sound barrier in the technical field of limit bolts, which comprises a limit piece, fixing bolts are inserted on the left side and the right side of the limit piece, nuts are sleeved at the bottoms of the fixing bolts, and nut limit plates are fixedly connected at the rear ends of the upper surfaces of the nuts. The bottom of the nut limiting plate is fixedly connected with a bent plate, the bottom of the fixing bolt is sleeved with a nut gasket, the nut gasket is located above a nut, the fixing bolt can be conveniently fastened in the using process through the limiting piece, looseness in the using process is avoided, the nut can be conveniently limited and fixed through the nut gasket, and the fixing effect is good. The nut and the sound barrier are conveniently fixed through the nut limiting plate and the bent plate, nut loosening caused by frequent action and influence of high-speed train pulses is avoided, the problem that the nut at the bottom of the sound barrier stand column is loosened is effectively solved through double-layer fixing of the nut, and safe running of a high-speed train is guaranteed.

This invention discloses a three-dimensional electrical resistivity tomography (EDT) method for detecting cavities based on T-shaped electrode survey lines. A two-dimensional T-shaped electrode survey line advance detection observation system is constructed by deploying two mutually perpendicular survey lines (line 1 and line 2) behind the tunnel face. Electrode electrical resistivity data are collected for both vertical and parallel tunnels, and resistivity depth imaging maps are then established for each. The vertical imaging map determines whether the cavity is located to the left or right of the tunnel face, while the parallel imaging map determines whether it is located in front of or behind the tunnel face. This achieves preliminary two-dimensional planar positioning of the cavity. The detection space around the tunnel face is divided into target units, and through resistivity forward modeling and correlation calculation, correlation imaging results of each target unit are obtained. Ranges exceeding a threshold are delineated in the map, and combined with the preliminary positioning, the three-dimensional spatial location of the cavity is accurately determined, ensuring safe tunnel excavation.

The application discloses a kind of redundant methods, systems, readable storage medium and electronic equipment of entrance signal machine active transponder message, which contains: TCC sends route number information, route number corresponding head signal lighting state information and station equipment number information to TSRS;TSRS receives the information sent by TCC and sends it and temporary speed limit information to train on-board equipment;Train on-board equipment generates wireless train control curve in real time based on the route number information, route number corresponding head signal lighting state information, station equipment number information and temporary speed limit information sent by TSRS, combined with the route information called, and stores;When train runs to target transponder, if target transponder message is abnormal, and train on-board equipment successfully generates wireless train control curve in real time, train uses wireless train control curve in real time to enter route.Its advantages are: the method can effectively solve the problem of low operating efficiency caused by active transponder message sending exception.