19 results about "Automatic train control" patented technology

The invention discloses a rail transit hub emergency regulation and control method and system based on real-time simulation, and relates to the technical field of intelligent traffic and rail transit emergency management, and the method comprises the steps: carrying out the time synchronization processing of real-time passenger flow data and train operation state data, and generating a hub state data set; constructing a multi-level simulation model, and simulating a passenger flow distribution evolution process by presetting passenger flow evacuation behaviors and train operation constraint conditions; based on an output result of the multi-level simulation model, positioning capacity limiting nodes in each evacuation path by adopting a bottleneck identification algorithm, calculating passenger flow carrying capacity, and generating an optimal path regulation and control parameter with shortest evacuation time as a target; and the optimal path regulation and control parameters are converted into a train automatic control system instruction and a passenger flow guide display instruction, the instructions are issued to each line control unit through a hub centralized dispatching system, and the train operation frequency and the passenger flow evacuation direction are adjusted. According to the invention, intelligence and collaboration of emergency regulation and control of the rail transit hub are realized.

The invention provides an automatic dormancy and automatic wakeup method and system of a train and the train, and belongs to the technical field of automatic train control, and the method comprises the steps that when the train stops at any position on a rail, a first Beidou position of the train is received and stored in response to a received dormancy instruction, then power is cut off, and the train enters a dormancy state; after the train is powered on, receiving and storing a second Beidou position of the train in response to a received wake-up instruction; performing train positioning verification according to the first Beidou position and the second Beidou position; and under the condition that the positioning verification is passed, wakeup success information is sent to the auxiliary driving system. According to the method, the train can automatically sleep at any position of the rail, and meanwhile the situation that the train cannot sleep or be awakened is avoided; in addition, the application supports automatic sleep and wake-up operations without a network area.

The application discloses a kind of control system of train in double-sided platform automatic door opening, including central signal system and train automatic control system;The train automatic control system controls train to station door opening, including train automatic protection system and train on-board signal control system;The train automatic protection system guarantees train door opening safety;The train on-board signal control system sends door opening instruction to train;The central signal system and train on-board signal control system communicate by wireless communication system, so as to send the set door control strategy information to train on-board signal control system, and the train on-board signal control system automatically controls train door opening according to door control strategy information;The system of the application can automatically execute door opening operation according to the set door opening strategy, without manual intervention.

The invention provides a method and a device for determining the health degree of an automatic train control system, which are applied to the technical field of rail transit, and the method comprises the following steps: obtaining hierarchical division information of each device in the automatic train control system, and obtaining health degree index data of each device; inputting the health degree index data of each device into a preset health degree calculation model to obtain a health degree score of each device; based on the hierarchy division information of each device, determining the hierarchy weight of each device; and according to the hierarchical weight of each device, based on the health degree score of each device, determining the total health degree score of the train automatic control system. According to the invention, the accuracy and practicability of health degree evaluation in the train automatic control system can be improved.

The invention discloses an automatic train control method in an urban rail transit manual driving mode, and the method specifically comprises the steps: enabling a vehicle-mounted subsystem to judge a current train driving mode, and enabling the automatic train control subsystem to obtain a dispatching command issued by train dispatching when the current train driving mode is judged to be the manual driving mode; the dispatching command is converted into a train control step of the train, and a train moving path is obtained according to the train control step obtained through conversion; calling an equipment state on the train moving path, and setting a virtual parking point according to the called equipment state; and the automatic train control subsystem performs information interaction with the train-mounted subsystem based on the current position of the train, the running direction, the train moving path and the calculated virtual parking point, and automatically controls the train to run. According to the method, manual intervention in the train running process can be reduced, faults caused by manual operation errors are avoided, and the investment of labor cost is greatly reduced.

The embodiment of the invention relates to the technical field of vehicle-mounted autonomous sensing control, and provides a vehicle-mounted autonomous sensing equipment interface circuit and a vehicle autonomous control method.The vehicle-mounted autonomous sensing equipment interface circuit comprises an autonomous sensing system emergency braking output module and a speed measuring and positioning communication module, and the autonomous sensing system emergency braking output module is connected in series in a vehicle emergency braking loop; comprising an autonomous sensing emergency braking output contact, an autonomous sensing cut-off switch normally-open contact and a cut-off switch normally-closed contact of a train automatic control system which are connected in series in a vehicle emergency braking loop, and the three contacts are connected in parallel; the speed measurement positioning communication module enables the communication interface of the autonomous sensing system to be connected to the train automatic control system and the communication bus of the speed sensor and the transponder transmission module in parallel, and can read speed measurement data and positioning data of the speed sensor and the transponder transmission module. Therefore, the availability and the safety of the vehicle-mounted autonomous sensing system are improved.

The invention discloses an automatic train sorting system and a sorting method thereof, and relates to the technical field of automatic train control. The sorting device comprises a main control chip, a current sensor, a first controllable switch and a sorting load, the detection input end of the current sensor is connected with a positive electrode wire of a detection power supply, the main control chip is connected with the current sensor and the first controllable switch, and the sorting load is connected with the first controllable switch; when the main control chip receives a load closing command sent by the locomotive unit, a current signal is detected through the current sensor and sent to the locomotive unit; and the locomotive unit receives a plurality of current signals correspondingly detected by the plurality of sorting devices, and sequentially sorts the vehicles corresponding to the plurality of sorting devices according to the plurality of current signals. According to the invention, the problems of low manual train sorting efficiency and inaccurate train positioning sorting are solved, full-automatic sorting is realized, and the sorting efficiency and accuracy are improved.

The invention provides a train control method, device and equipment in the wheel diameter correction process and a medium, and relates to the technical field of train control, the method is applied to an automatic train control system, and the method comprises the steps that under the condition that the wheel diameter correction lowest speed is smaller than a target difference value, a train is controlled based on a target level; the target difference value is the difference value between the emergency braking trigger speed and the ceiling speed margin; the target level is determined based on the initial speed of the train entering the wheel diameter correction interval; the estimated speed of the train is determined in real time, and under the condition that the estimated speed is close to the minimum wheel diameter correction speed, a target traction level is determined based on the current slope of the train and a resistance factor corresponding to the current weather condition; and controlling the train based on the target traction level. According to the technical scheme, the train is prevented from abnormally stopping in the wheel diameter correction interval, the train is controlled through the fixed target traction level, it is ensured that the train runs at a constant speed, idling and slipping are reduced, the wheel diameter correction accuracy is improved, and the running efficiency is stabilized.

The invention discloses a rail transit train platform gap rubber automatic inflation and deflation device and method.The device comprises a rubber inflation and deflation body, an air pump system, a sensor, a control device and a train automatic control system, and the rubber inflation and deflation body is arranged at the gap of a platform and controlled through the air pump system; the control device is respectively connected with the air pump system, the sensor and the train automatic control system, the control device comprises a sensing receiving module, a processor based on an algorithm calculation model and a control instruction output module which are electrically connected in sequence, and the sensing receiving module receives a signal and then sends the signal to the processor; the control instruction output module receives the signal and then sends the signal to the air pump system; the train automatic control system sends train information to the control device, receives the inflation and deflation signals and controls the train and the train doors to be started and stopped. The system has the advantages of being high in intelligence, accurate in linkage, efficient, safe, high in adaptability and the like, and the safety and convenience of passengers getting on and off the train are greatly improved.

A system for enhancing personnel safety on a railroad track is presented. The system can receive data from sensors and / or a PTC system to determine positions of clients / worker and / or vehicles, and further utilize such data to determine if a vehicle is within a certain proximity of the client / worker location. The system can further generate geofences around clients / vehicles to and determine when such geofences intersect one another. Additionally, the present disclosure can assign severity levels and generate alerts with the assigned severity levels, and such severity levels can indicate how close a vehicle is to a particular location. It is an object of the invention to provide a system for generating alerts to notify personnel when they much retreat to a place of safety.

A method for operating rail vehicles in a traffic network, which includes a reserved operating area that is reserved for the rail vehicles and a shared operating area which is shared with traffic participants other than the rail vehicles. A computer-assisted method for train control is performed automatically in the reserved operating area. The method for automatic train control is also performed in a computer-assisted manner in the shared operating area, wherein automatic train protection does not take place but automatic operation and supervision do take place. Using a range of functions modified thus, continuous train tracking is advantageously realized. There are also described a traffic network for operating rail vehicles, a rail vehicle for operation in a traffic network, and a computer program and an associated delivery device.

The invention discloses a vehicle-mounted system control method and device, and the method comprises the steps: enabling a vehicle-mounted system to transmit the position information of a train and a safety envelope region to a train monitoring system in a safety state mode; a traction cutting instruction and a braking instruction are sent to the train, and the train is controlled to stop moving; enabling of a train automatic control system ATO is controlled to be invalid; the type information of the abnormal fault is sent to a train monitoring system, and if a remote restart instruction sent by the train monitoring system is received, the restart repair process of the vehicle-mounted system is carried out; and fault display information is sent to a man-machine interaction interface MMI, and log information is sent to a data recording unit DRU. The vehicle-mounted system repairing efficiency is improved, and the influence on the line operation efficiency is reduced.

A method and system for protecting operation personnel of an automatic train control system, and an electronic device, a computer-readable storage medium and a computer program product. The method comprises: acquiring a protection request (S101): acquiring a personnel protection request, which is sent by a mobile device (350); verifying the protection request (S102): verifying the personnel protection request; activating area protection (S103): sending activation information to an area controller (330) and a computer interlocking (340) to activate the area protection; and opening a station-side door (S104): feeding the success of the protection request back to the mobile device (330), and sending an opening control instruction to a personnel protection controller (310), so as to open the station-side door (360).

To improve the throughput of packets transmitting positive train control (PTC) messages over an asynchronous wireless network supporting train motion control, data rates are adjusted based on one or more link conditions. Modulation and coding schemes with less overhead can be used to increase the data rate when the estimated link quality or conditions are relatively good. Conversely, when the estimated link quality is relatively poor, more robust modulation and coding schemes can be used to maintain link performance but at the cost of reduced data rates.Optionally, if the estimated link quality is higher than that required to achieve a predefined maximum transmission rate at a given predefined power rate, the transmission power can be reduced to that required to transmit at the predefined maximum transmission rate.

The invention provides a fault diagnosis method of a train automatic control system based on communication. The method comprises the following steps: forming an original data set by using collected CBTC operation data; using the original data set to train an auxiliary classifier to generate an adversarial network ACGAN, obtaining a trained generator G and a discriminator D, and using the original data set and the synthesized CBTC fault class data to form a balanced data set; constructing an ACNN classifier, and training the ACNN classifier by using the balanced data set to obtain a trained ACNN classifier; and utilizing the trained ACNN classifier to predict to-be-identified CBTC communication system test data to obtain a fault diagnosis result corresponding to the to-be-identified CBTC communication system test data. According to the method, the long-range dependency relationship and the fine-grained difference in the fault signals can be captured, the fault classification precision of the CBTC is effectively improved, the confusion matrix and the macroscopic average accuracy rate are adopted as main evaluation indexes at the classifier end, and the high recall rate and the low false alarm rate of fault categories are ensured.

This invention discloses a real-time simulation-based emergency control method and system for rail transit hubs, relating to the fields of intelligent transportation and rail transit emergency management. The method includes: synchronizing real-time passenger flow data with train operation status data to generate a hub status dataset; constructing a multi-level simulation model to simulate the evolution of passenger flow distribution by pre-setting passenger evacuation behaviors and train operation constraints; based on the output of the multi-level simulation model, using a bottleneck identification algorithm to locate capacity-limiting nodes in each evacuation path, calculating passenger flow carrying capacity, and generating optimal path control parameters with the goal of minimizing evacuation time; converting the optimal path control parameters into train automatic control system commands and passenger flow guidance display commands, which are then distributed to each line control unit through the hub centralized dispatching system to adjust train operation frequency and passenger evacuation direction. This invention achieves intelligent and collaborative emergency control of rail transit hubs.

The application provides a kind of shielding door intelligent blocking and preventing clamping device applicable to unmanned subway, comprising a unit controller terminal arranged on a platform, a local control box, a plurality of transmission telescopic systems and a plurality of blocking detection systems; the unit controller terminal is connected with the local control box and is in communication connection with a train automatic control system; the local control box is connected with a door machine controller; the door machine controller is connected with the transmission telescopic system and the blocking detection system; the blocking detection system comprises a blocking strip and a detection system installed on the blocking strip; the blocking strip is drivingly connected with the corresponding transmission telescopic system and is connected with a side adjacent to a train of a shielding door frame of the platform through the transmission telescopic system. The shielding door intelligent blocking and preventing clamping device applicable to unmanned subway of the application overcomes the low detection accuracy and the deficiency of the preventing clamping ability of the existing subway shielding door foreign matter detection and preventing clamping device, reduces the passenger danger caused by human error operation, and is applicable to unmanned subway line.

The embodiment of the invention provides an automatic train control method, device and equipment of a train and a storage medium, and is applied to the technical field of urban rail transit. The method comprises the steps that the delay state of online trains is monitored in real time, a train set with the delay exceeding a threshold value is screened, and the train with the longest delay is determined as a reference train; based on the late state of the reference train, iteratively adjusting the station dwell time and the operation level of each train in the train sequence in front of the reference train at a subsequent station by taking a uniform running interval as a target; meanwhile, according to the actual departure time of the reference train at the late station, the predicted departure time of each train in the rear train sequence at the to-be-stopped station is dynamically adjusted; and finally, generating a global operation control instruction and updating the operation control chart based on the departure time adjustment results of the front and rear trains. In this way, the train delay and running interval conditions can be automatically detected, the problems that the trains are overstocked in the interval and the interval between the front train and the rear train is too large are solved, and non-inductive maintenance of passengers is achieved.

The present invention provides a control system and method for subway platform screen doors. The control system includes: a communication-based automatic train control system (CBTC), a train control center, a central control panel (CCP) located at each subway station, and several door control units. The CBTC continuously sends invalid door control instructions to the platform control unit (PEDC) on each CCP via a network path according to a preset period. Based on the invalid door control instructions received, the platform control unit sends corresponding invalid control instructions that do not need to be executed to the door control units under its control. The door control units of the subway platform screen doors determine whether a verified invalid control instruction has been received within a predetermined time interval. If not, the corresponding platform control unit is determined to be faulty and the subway platform screen doors controlled by it are locked. The technical solution of the present invention can quickly detect faults caused by the platform controller and lock the subway platform screen doors, avoiding safety accidents.