3results about How to "Guaranteed normal driving" patented technology

The invention discloses an automatic navigation control system and method of a hydraulic drive crawler, and relates to the technical field of engineering vehicle control, the system comprises a navigation control subsystem used for confirming a starting point and an ending point to confirm a driving path; the man-machine interface logic control subsystem is used for receiving the driving path and setting initial information of the crawler according to the driving path; the crawler driving control subsystem is used for controlling the crawler to run along the running path according to the initial information; the controller is also used for acquiring real-time data and yaw information of the crawler, calculating a yaw distance, comparing the yaw distance with a yaw threshold value to obtain a comparison result, and generating a correction instruction according to the comparison result; and the tracked vehicle driving control subsystem corrects the yawing tracked vehicle based on the correction instruction, so that the tracked vehicle recovers to go straight. According to the method and the device, the crawler running in the preset path can be timely, accurately and automatically corrected.

This utility model discloses a tunnel wall ring reinforcement forming device, relating to the field of tunnel ring reinforcement processing technology. The tunnel wall ring reinforcement forming device includes an integrated steel frame, which houses a primary forming mechanism, a straightening mechanism, a matrix laser sensor, and an encoder. The matrix laser sensor is located on the reinforcement inlet side of the primary forming mechanism. The primary forming mechanism includes a pair of driving wheels and driven wheels, with the driving wheel connected to the encoder and the driven wheel connected to a linear avoidance actuator. The straightening mechanism includes a pair of driving wheels and driven wheels, with the driven wheel connected to a linear avoidance actuator. The matrix laser sensor and the encoder are electrically connected to a control box, which is controlled by the linear avoidance actuators. This tunnel wall ring reinforcement forming device can avoid sleeve collisions, improve ring reinforcement forming accuracy, and ensure forming quality.

The present application relates to a kind of highway reconstruction period S type switching length calculation and dynamic speed limit control method, belong to intelligent transportation field.The method includes a set of data acquisition facilities and field information release facilities are set in switching place before and after and upstream, obtain each lane traffic flow data and release lane level dynamic speed limit control strategy;A set of road surface environment detection facilities are set in switching place, obtain each lane road surface environment condition and real-time friction coefficient;Input switching place and upstream and downstream road alignment condition and future each time period predicted traffic flow data, utilize simulation software to simulate and compare the traffic operating conditions when different speed limit values are used in switching, determine the initial speed limit value of switching place;Input switching place and upstream and downstream road alignment condition and initial speed limit value, utilize switching opening length calculation method, output opening length design value, calculate the design speed limit value of switching place;Real-time lane level road surface friction coefficient or traffic emergency is combined, and the speed limit value of S type switching place is dynamically adjusted.