10 results about "Automatic train operation" patented technology

The application relates to a method for moving authorization of a reverse train across the boundary of a region controller and a storage medium, which comprises the following steps: step S1, when the authorization of a reverse region is limited, two adjacent region controllers (ZCs) synchronize the state of the authorization of the reverse region; step S2, the adjacent ZCs synchronize the state of the barrier train in the authorization of the reverse region; and step S3, an upstream ZC hands over the train in the authorization of the reverse mode to a downstream ZC. Compared with the prior art, the application has the advantages that the reverse train in an emergency evacuation scene is protected, and the safety of a full-automatic train operation control system is further ensured.

The present invention relates to the technical field of automatic train operation, and in particular to an ATO-based high-precision alignment and stopping control system and method for a shunting locomotive. The control system of the present invention comprises a fusion positioning module, a laser ranging module, a speed control module, and a distance compensation module; the fusion positioning module performs high-precision fusion positioning on the basis of precise latitude and longitude, position information of track balises, real-time speed, and wheel revolution pulse counts, and provides precise position information to the speed control module in combination with an electronic map; the laser ranging module receives, in real time via vehicle-to-vehicle communication, a laser-ranging distance from a hot metal ladle car or railway freight car that is being coupled and propelled; the speed control module calls, on the basis of the precise position information provided by the fusion positioning module and the distance information provided by the laser ranging module, a speed control algorithm to perform traction and braking control on the locomotive; and the distance compensation module performs fine distance adjustment after precise stopping.

This invention provides an automatic train operation system and method that enables safe automated operation by accurately switching control methods corresponding to different automation levels through a simple and low-cost configuration. [Solution] The automatic train operation device 1 can selectively switch between an automatic operation mode M2 ​​for automatic operation of train T and a driver assistance mode M1 for driver assistance, which allows manual intervention in the operation of train T by the driver during automatic operation. Driver assistance mode M1 is selected only when the insertion of a master controller key into the master controller key insertion section 6 by the driver is detected.

This invention proposes a scenario-adaptive ATO (Automatic Train Operation) control system for rail transit, comprising an operation information acquisition module 201, a scenario-adaptive control module 202, and a train traction / braking execution module 203. The scenario-adaptive control module 202 receives information input from the operation information acquisition module 201, and after learning, prediction, and optimization, generates control commands which are then input to the train traction / braking execution module 203. In this system, the parameter tuning module performs self-tuning of the five controller parameters of the sliding mode PID controller, achieving higher efficiency and accuracy compared to manual parameter tuning, and saving more time spent tuning controller parameters during train trial runs. The system prediction module effectively suppresses excessive overshoot that easily occurs when the train switches operating conditions, avoiding emergency braking triggered by overshoot exceeding the maximum overshoot threshold during operation, while also improving the accuracy of the train ATO controller in tracking the target curve.

The invention relates to a hydraulic braking system of a low-floor tramcar and a control method and system of the hydraulic braking system, and belongs to the technical field of railway vehicles. The hydraulic unit comprises an oil tank used for storing hydraulic oil; the oil pump is used for pumping hydraulic oil, an inlet of the oil pump communicates with the oil tank, and an outlet of the oil pump is connected with the clamp through a first oil way; the motor is connected with the oil pump; the outlet end of the throttling hole is connected with the oil tank, the inlet end of the throttling hole is connected with an outlet of the oil pump, and the throttling hole is used for forming hydraulic pressure needed by braking according to the Venturi tube principle. The controller is connected with a vehicle control unit VCU, and the controller is configured to calculate hydraulic pressure needed by braking according to the needed hydraulic braking force sent by the vehicle control unit VCU, calculate the rotating speed of the motor according to the hydraulic pressure needed by braking and control the motor to rotate according to the rotating speed of the motor. The reliability of hydraulic braking is high, and the control precision and usability of an automatic train operation system ATO and station fixed-point parking can be effectively improved.

This invention discloses a method and system for intelligent switching of wireless network signal channels, relating to the field of wireless communication technology. The method involves sensing at least one other channel besides the current working channel while maintaining communication on the current working channel, identifying and marking at least one inferior channel. This inferior channel meets preset low-quality conditions and is different from the current working channel. This invention does not rely on external positioning information such as GPS / BeiDou; it can complete channel sensing and coding detection using only communication gaps. It can still function normally in tunnel scenarios, fundamentally solving the switching problem when trains pass through tunnels. Furthermore, by using a timing coupling mechanism that first eliminates inferior channels and then performs binary coding detection, the globally optimal channel can be deterministically locked. Theoretical analysis and simulation verification show that the switching success rate can reach over 99.5%, and the switching delay is controlled within 30ms, fully meeting the stringent requirements of 5G-R systems for high-reliability services such as automatic train operation.

The invention provides a train protection speed curve optimization method based on a traction level limit proportion, and the method comprises the steps: transmitting a traction limit mode instruction and the traction level limit proportion to an ATO (automatic train operation) by an ATP (automatic train protection) when a train enters a preset traction limit area in an electronic map and the running directions of the train are consistent; and the ATO periodically feeds back a traction control state after receiving, the ATP performs condition inspection in real time, and the traction limiting mode is confirmed to be effective after the inspection is passed. The ATP dynamically calculates a train protection speed curve according to the traction level limiting proportion, and the ATO synchronously calculates an optimized running speed curve and limits an output traction level instruction. Once the condition is not satisfied or the train travels away from the restricted area, the system exits the restricted mode. According to the method, by introducing the traction level limit proportion, the difference between the protection speed and the line civil engineering speed limit when the train laterally passes through the turnout is reduced, so that the running speed of the train passing through the limited area is increased on the premise of ensuring safety, and the running efficiency of the train is improved.

The invention relates to an automatic running planning method and device for a train running on a lower computer. The method comprises the following steps: performing format conversion on a target function for performing automatic train operation planning to obtain the target function after format conversion; obtaining a non-positive definite matrix based on the target function after format conversion, and converting the non-positive definite matrix into a positive definite matrix to obtain a first model; performing data type conversion on the data of the first model to obtain a second model; and the second model is operated on the lower computer, and automatic train operation planning is carried out. According to the invention, the automatic train operation planning algorithm can be matched with the performance and precision of the lower computer, so that ATO planning can be carried out on the lower computer.

Provided are a fault detection method and apparatus for an automatic train operation system, and a device and a medium. The method comprises: in response to a fault detection instruction, determining a self-test program configuration table for performing the current fault detection on an automatic train operation system (S110); on the basis of the self-test program configuration table, performing the current fault detection on the automatic train operation system, and on the basis of a detection result, updating a detection item information table (S120); determining a target detection item identifier from a detection type information table, and on the basis of the target detection item identifier, the detection type information table and the updated detection item information table, determining a target detection code and a target offset which correspond to the target detection item identifier (S130); and on the basis of the target offset, assembling the target detection code to obtain a target fault code of the current fault detection, and on the basis of the target fault code, determining an operating state of the automatic train operation system (S140). The solution improves the applicability of fault detection on an automatic train operation system.

This invention provides a single-vehicle traction simulation method and system considering a protected section model, comprising the following steps: acquiring track data, train data, and signaling system data; obtaining the automatic protection speed curve of the train based on track speed limits, train speed limits, and a train braking model; obtaining the automatic train operation speed curve of the train based on the automatic protection speed curve and the train braking model, and determining the length of the protected section. Based on the automatic train operation speed curve, a system framework for simulating train operation curves is obtained. This invention provides a single-vehicle traction simulation method and system considering a protected section model, supporting the optimization of train operation strategies and improving the overall performance and safety of rail transit systems. The system provided by this invention can fully simulate the train's operating state on actual tracks and accurately calculate key parameters, providing a scientific basis for simulation analysis and optimization of train operation.