406 results about "Signalling system" patented technology

The invention provides a train degradation operation control method and system based on active perception, and the method comprises the steps: obtaining a high-safety visual distance and signal machine information through an intelligent perception system after a train enters an ABL mode; a speed curve is calculated based on the train operation condition, the signal machine information and the high-safety visual distance, and the train is controlled; wherein the intelligent sensing system is composed of vehicle-mounted equipment and trackside equipment; the vehicle-mounted equipment comprises a sensing host, a radar sensor and a camera; the trackside equipment comprises a coding signboard; the camera is used for collecting image data; the radar sensor is used for detecting point cloud data; and the sensing host is used for determining a high-safety visual distance and signal machine information according to the image data and the point cloud data. According to the method, in the transformation process of the urban rail transit signal system, when the signal equipment beside the rail does not meet the transformation condition, the train degradation operation control can be carried out.

The present invention relates to an integrated train dispatching system and method for regional rail transit, and a medium. The system comprises: a network-wide operation diagram editing and display module, configured to construct and display a regional rail transit network-level operation diagram; a center / station functional module, configured to, on the basis of center / station mode configuration information, activate a corresponding functional module, and implement center dispatching or station dispatching; a line hybrid dispatching functional module, configured to, on the basis of line automation level configuration information, activate a functional module corresponding to the current automation level, and implement hybrid dispatching management of lines having different automation levels; and a full-function scenario dynamic dispatching module, configured to perform full-lifecycle dynamic dispatching of trains on the basis of different signal system conditions, the signal systems comprising CTCS2 + ATO + ATB, cross-line operation CBTC, and CBTC and CTCS2 + ATO + ATB cross-line operation. Compared with the prior art, the present invention has the characteristics of full-scenario coverage, high compatibility, a high degree of automation, and wide practicability.

The invention relates to a train interlocking control method and system based on distributed interlocking control, and belongs to the technical field of urban rail transit signal systems.The train interlocking control method comprises the steps that the real-time position and dispatching demand data of a train are received; determining the next target position of the train according to the scheduling demand data, and generating a corresponding scheduling command; the dispatching command is analyzed and verified according to the current track state data, the signal machine state data and the turnout position data, confirmation feedback information or correction feedback information is generated to confirm or correct the dispatching command, a final dispatching command is obtained, and a signal machine state adjusting command and a turnout position adjusting command are generated; according to the execution feedback result and the circuit state monitoring data, the execution condition of the final dispatching command is analyzed, and normal driving confirmation information or dispatching execution abnormal information is fed back to the train control center. According to the invention, distributed interlocking control can be realized, and the safety and efficiency of train operation are greatly improved.

The invention provides a train section protection method and system capable of autonomously sensing a backup operation level, and the method comprises the steps: receiving danger source information and signal machine state information transmitted by ground equipment under the condition that the operation level of a train is an ABL level; calculating a first perception MA of the train according to the signal machine state information and the ABL level generation factor; according to the type of the signal machine corresponding to the open near road of the train and the first sensing MA, sensing MA fusion of different train routes is carried out, and a second sensing MA is obtained; extending the second perception MA according to different accurate parking scenes to obtain a third perception MA; updating the third sensing MA according to the validity of the hazard source information to obtain a fourth sensing MA; and controlling the train to perform target obstacle protection in the operation interval according to the fourth sensing MA. According to the method, automation, intelligence and reliability of a train signal system are improved, and then the efficiency and safety of interval protection of the train are improved.

The embodiment of the invention provides an urban rail signal system fault diagnosis method based on a knowledge graph and a large model, and the method comprises the steps: collecting system operation logs, state parameters and fault information in real time, and carrying out the data preprocessing and standardization; based on historical fault data, a fault classification and prediction model is constructed through feature extraction and mode recognition, and automatic fault recognition and risk early warning are achieved; constructing a fault diagnosis knowledge graph, and establishing an association relationship among entities such as equipment, faults, reasons, maintenance schemes and the like; a pre-training large language model and a LoRA technology are adopted for efficient fine tuning, a fault diagnosis reasoning model is trained, and end-to-end generation from fault description to diagnosis and maintenance suggestions is achieved; the knowledge graph and large model output are fused, real-time and historical data are combined, multi-path fault analysis and comprehensive diagnosis are carried out, and a diagnosis report is generated and displayed. The intelligent level, accuracy and efficiency of fault diagnosis can be improved, and technical support is provided for intelligent operation and maintenance management.

The invention discloses a railway vehicle-mounted ATP intelligent operation and maintenance system based on multi-source data fusion, and particularly relates to the technical field of high-speed railway signal system operation and maintenance, and the system comprises a data collection layer which is used for collecting data related to a railway vehicle-mounted ATP from a plurality of different data sources in real time; the data transmission layer adopts a reliable communication protocol to ensure that the data acquired from the data acquisition layer can be stably transmitted to the subsequent processing layer in real time; the data processing layer is used for cleaning, converting and fusing the transmitted data so as to improve the consistency and availability of the data; the intelligent analysis layer is used for carrying out intelligent analysis on the fused data; and the application layer provides a visual interface for operation and maintenance personnel and displays the analysis result and the operation and maintenance suggestions obtained by the intelligent analysis layer. According to the railway vehicle-mounted ATP intelligent operation and maintenance system based on multi-source data fusion, the ATP operation and maintenance efficiency can be remarkably improved, the operation and maintenance cost is reduced, and safe and smooth railway transportation is guaranteed.

The invention discloses a railway LEU-transponder transmission system lightning stroke fault risk assessment method, and the method comprises the steps: determining a lightning current invasion path through building a lightning stroke transient electromagnetic disturbance calculation model of an electromagnetic sensitive equipment port, and calculating the voltage and current at the port when incoming waves invade. And building an electromagnetic sensitivity test experiment platform of the railway signal system based on the lightning current invasion path and the voltage and current at the port. And performing label category prediction on the to-be-predicted sample point through each support vector machine model in the target model set, and voting each prediction result. According to the invention, a complex transmission relation between lightning transient electromagnetic disturbance and equipment failure risk is established through deep learning. The fault risk of the signal system under the lightning transient electromagnetic disturbance action is predicted through transient electromagnetic effect experimental data of real equipment of the railway signal system, and powerful support is provided for improving the electromagnetic sensitivity of the signal system and guaranteeing stable operation of a railway.

The invention discloses a simulation method of a full-system coupled railway traction power supply system, which comprises the following steps: taking a traction power supply system and a train group as integrated simulation objects, and respectively constructing traction power supply network models including equivalent models of traction transformer, traction network, AT station and public power grid parameters; a multi-train operation simulator is constructed, and the multi-train operation simulator comprises various parameters such as trains, lines, signal systems, operation organizations and the like. Traversing all on-line trains through a multi-train operation simulator, substituting the on-line trains into a traction power supply network model, and dynamically calculating operation parameters and traction loads of a train group, including calculating locomotive initial current according to train initialization voltage, solving a traction power supply network node voltage equation and updating locomotive terminal voltage; and correcting the traction and braking characteristics of the train based on the updated locomotive terminal voltage. The method overcomes the defects of a traditional calculation method using a traction power supply system as an isolated network, reveals the dynamic state of train operation and the distribution characteristics of the traction network, and finally can obtain various parameters of each train.

The invention discloses an intelligent rail transit signal system and an automatic scheduling method, and relates to the technical field of rail transit, and the method comprises the steps of data acquisition, machine learning modeling, scheduling optimization algorithm based on machine learning, scheduling strategy generation, real-time signal control, automatic scheduling decision, and system monitoring and optimization. By adding the physical constraint to guide the generation process, the problem that the rail transit data generation sample does not conform to the actual physical law is solved; the problems of insufficient data generation diversity, generation mode collapse and the like are solved through methods of dynamic memory mechanism optimization generator training and the like. The problems of high-dimensional redundancy, nonlinear structural features, poor model generalization ability and the like of rail transit data are solved by using a negentropy excitation function.

The invention discloses an urban rail transit management system based on multi-source data fusion, and the system is characterized in that a data collection module is connected with a data preprocessing module, and is used for collecting multi-source data of a power supply system, a vehicle system and a rail signal system; the data preprocessing module is connected with the data fusion center and is used for denoising, filtering and normalizing the received original data; the data fusion center is connected with the data acquisition module, the data preprocessing module and the decision analysis module and is used for realizing fusion of multi-source data; the decision analysis module is connected with the data fusion center and the control execution module and is used for performing fault prediction and emergency processing decision; the control execution module is connected with the decision analysis module and an external execution mechanism and used for controlling the execution mechanism to guarantee operation of the rail transit system according to instructions of the decision analysis module. According to the invention, operation efficiency and resource configuration can be improved, risks are reduced, shutdown time is reduced, safety and experience are guaranteed, maintenance and operation costs are reduced, and benefits are improved.

The invention provides a platform door system gap detection device control method, which specifically comprises the steps that a signal system sends a door closing command to a platform door system and then keeps a command output state, the platform door system controls a sliding door to be closed after receiving the signal door closing command, and the state is fed back to a gap detection device after the sliding door is closed and locked; the gap detection device starts gap detection when receiving that the sliding door is in a closed and locked state, and feeds back the closed and locked state of the platform door system to the signal system when the gap detection is not abnormal; after the vehicle door is normally closed and locked, the vehicle door is fully closed, and the locking state is fed back to the signal system; the signal judges that the train door and the platform door are closed and the door closing command is canceled when being locked, the gap detection device cancels detection after detecting that the signal door closing command disappears, and the signal system controls the train to leave the station after confirming that no obstacle is retained in the gap detection device. According to the method, gap detection is matched with train operation, and the safety of train operation is improved.

The invention relates to the technical field of rail transit automatic driving, and particularly discloses a rail transit train automatic driving control method, which is characterized in that a vehicle-mounted control center cooperates with a signal system, a traction unit and a braking system, and centimeter-level real-time positioning is realized by adopting extended Kalman filtering and fusing satellite positioning, an odometer and trackside beacon data; the parking precision of the platform is controlled based on a graded braking strategy (coasting-common-precise braking) and pulse type terminal point fine adjustment; the method dynamically adapts to line condition changes in combination with feedforward-feedback composite speed control, and establishes a multi-level safety monitoring network (obstacle detection / overspeed protection / vehicle door linkage) to realize full-process closed-loop control, and finally, high-precision, high-safety and high-coordination operation under unmanned driving is achieved.

The present invention relates to the technical field of rail transit signaling systems, and in particular to a train control system, method and apparatus for heterogeneous verification of movement authority (MA). The system comprises: a ground-based temporary speed restriction server configured to send, to an onboard device of a target train, location information of all trains within a section corresponding to the target train; a ground-based radio block center configured to: calculate MA on the basis of the location information of the target train and location information of a train preceding the target train; and send the MA and identification information of the preceding train to the onboard device of the target train; and the onboard device configured to verify and correct the MA on the basis of the identification information of the preceding train and the location information of all the trains. In the present application, a heterogeneous MA calculation and verification mechanism is adopted, thereby reducing the risk of errors due to MA calculation by a single device.

The invention discloses a railway signal equipment station level reliability analysis method, which belongs to the technical field of railway signal system operation and maintenance, and comprises the following steps of: calculating to obtain annual average temperature data and annual average humidity data of a region where a railway line is located; constructing an action coefficient of the environment on railway signal equipment degradation; constructing a degradation process model of the railway signal equipment; calculating to obtain a reliability value of the railway signal equipment; establishing a topological structure of the railway signal equipment system according to the railway signal station layout diagram and the interlocking table; equidistant discretization based on time scale is carried out on the reliability state of the railway signal equipment, and a station level reliability model of the railway signal equipment is constructed; and representing the station-level reliability of the railway signal equipment by using an indicative function, and calculating to obtain a station-level reliability value of the railway signal equipment. According to the invention, the problem that the equipment-level and station-level reliability evaluation of the outdoor railway signal equipment is difficult to carry out in a complex operation environment on a railway site is solved.

A safety information supervision apparatus applied to a high-speed rail signaling system includes a communication processor, a Radio Block Center (RBC) interface machine, a Centralized Traffic Control (CTC) interface machine, a supervision and analysis server, an analysis terminal, and a storage device, where the communication processor and the RBC interface machine are communicatively connected to the supervision and analysis server through a monitoring network. The CTC interface machine is communicatively connected to the CTC system of a station and the supervision and analysis server, so as to obtain train information in the CTC system and to transmit an analysis result of the supervision and analysis server to the CTC system through the CTC interface machine. Multi-source data fusion analysis is used to perform filtering and validity analysis on basic data, thereby reducing false alarms.

Provided in the present invention are a rail transit train control method and apparatus. The method comprises: when the communication of a train is interrupted, acquiring a train movement direction, axle counting information, turnout information and a planned travelling destination, wherein the planned travelling destination is determined on the basis of passenger flow information corresponding to the next station of the train and a control instruction of an ATS center; determining train positioning information on the basis of at least one of the axle counting information and the turnout information, and the train movement direction; and determining a target authority on the basis of a plurality of device states between the train positioning information and the planned travelling destination, so as to control an operation level mode of the train, wherein the plurality of device states comprise a section state, a signal machine state, a staff protection key switch (SPKS) button state of a signal system, a screen door state, an emergency button state and a flood gate state. The method in the present invention can improve the automatic operation efficiency and operation safety of a train, thereby shortening the rescue time of an FAO system in case of a fault, and having high usability.

Signaling system for vehicles, comprising a warning light carrier (2), a signal light (5) mounted on the warning light carrier (2), and a plug-in hinge (3) with which the warning light carrier (2) is pivotably connected, characterized in that the signaling system (1) comprises, in addition to the signal light (5), an acoustic signal generator (6) which can be attached to the warning light carrier (2).

The invention provides an urban rail transit communication informatization monitoring device which comprises a rail health monitoring module which combines acoustic CT scanning and electromagnetic eddy current detection to generate a steel rail three-dimensional defect image and obtain rail defect data. The electromagnetic environment sensing and monitoring module extracts quantum noise features, establishes an electromagnetic field-signal system coupling model, and predicts interference of quantum noise on the CBTC system. And the communication signal quality monitoring module monitors signal strength abnormity by using a wireless spectrum analysis algorithm. And the data processing center fuses and analyzes various data and generates a monitoring report. And the visualization module displays the report. The integration technology improves the accuracy and reliability of track defect detection, and enhances the support of track maintenance data. The electromagnetic environment sensing and monitoring module improves the anti-interference capability of the communication system. The communication signal quality monitoring improves the monitoring precision and signal integrity verification, and reduces the false alarm rate.

The invention relates to a platform door management host and a platform door system, which are used for processing received vehicle door alignment and isolation management data of a vehicle door of an automatic train monitoring subsystem, sending a vehicle door alignment and isolation request to a fault door control unit, and sending detected fault door control unit information to the automatic train monitoring subsystem. The platform door alignment isolation management system comprises a main control board, a communication board and a switching board which are arranged in a first machine cage, and an input board and an output board which are arranged in a second machine cage, and the first machine cage is in communication connection with the second machine cage; the platform door management host adopts double-system redundant backup setting, each system is provided with a main control board and a communication board, the number of the main control boards is the same as that of the communication boards, and main-standby switching logic management is carried out between the double systems through a switching board. Compared with the prior art, the system has the advantages of low failure rate and high safety and reliability through board card level redundancy.

The invention provides a communication device of a train. The device comprises a multi-system trackside control system and a vehicle-mounted control system, the multi-system trackside control system comprises an existing trackside control system and a new trackside control system, and the new trackside control system is formed by transforming and upgrading the existing trackside control system; the vehicle-mounted control system communicates with the existing trackside control system and the new trackside control system through the same communication protocol. And the vehicle-mounted control system compatibly processes the application layer message of the existing trackside control system and the application layer message of the new trackside control system. By means of the communication device, barrier-free communication between the vehicle-mounted control system and the multi-system trackside control system can be achieved in the transition stage, and therefore the upgrading cost of an existing signal system of urban rail transit is greatly reduced.

The invention relates to a device for unlocking interlocking of a signal system and a platform door, an implementation method and an application method.The device is connected with the signal system and comprises a platform door whole-side bypass switch box, and the platform door whole-side bypass switch box is arranged on the side of the signal system; the platform door whole-side bypass switch box comprises platform door whole-side bypass switches corresponding to all stations. By rotating the platform door whole-side bypass switch corresponding to a certain station, the platform door whole-side bypass relays of the ascending and descending platforms of the certain station are activated or reset. Compared with the prior art, the method has the advantages of improving the operation capability of the urban rail transit and the like.

The invention discloses a railway signal track circuit code sending and annunciator display dual verification method and system, track circuit code sending and annunciator lighting are independent operation subsystems of a current signal system, and code sending errors or annunciator display errors are major potential safety hazards. On the premise that normal work of the two subsystems is not affected, first verification of railway signal track circuit information codes and signal machine display is established, then second verification of a railway signal track circuit key relay and a signal machine circuit key relay is carried out, dual verification is carried out to compare the consistency between the two systems, and the consistency of the two systems is improved. Related information is collected in real time and compared and analyzed, corresponding relation errors are found in time through double comparison, potential safety hazards are alarmed in advance, the method can serve as an important means for fault detection, the operation and maintenance efficiency can be improved, and safe operation can be guaranteed.

The invention provides an implementation method and device for a multi-opening-direction turnout control function, and relates to the technical field of rail transit signal control, and the method comprises the steps that an equivalent logic model is configured, and an N-opening-direction physical turnout is equivalent to a cascade structure composed of N-1 two-opening-direction virtual turnouts through the equivalent logic model; collecting physical position representation information of the N-direction physical turnout; based on a preset position state mapping rule, mapping the physical position representation information into a combined position state of all two-opening virtual turnouts in the equivalent logic model; transmitting physical location representation information or a combined location state based on the type of the data receiving end; wherein N is an integer greater than 2. According to the method, the equivalent logic model from the N-opening-direction physical turnout to the N-1 two-opening-direction virtual turnouts is established, strict state mapping and differentiated interface output strategies are combined, and safe and flexible control over the multi-opening-direction turnout under an existing signal system architecture is successfully achieved.

The invention relates to a rail transit speed sensor test and inspection method and system. The method comprises the following steps: acquiring a to-be-tested speed sensor; the input end of the speed sensor is connected to a signal system, the output end of the speed sensor is connected to sensor test verification equipment, and the signal system is used for providing an input control signal for the speed sensor; the sensor test verification device is used for providing rotating speed for the speed sensor, receiving output electrical performance parameters of the speed sensor and supplying power to the speed sensor. And determining input parameters of the signal system and the sensor testing and checking equipment, driving the speed sensor to operate, and checking the performance of the speed sensor according to the received output electrical performance parameters. Compared with the prior art, the system can simulate the running state and the test scene of a vehicle wheel set, and has indoor and outdoor test capabilities and a comprehensive troubleshooting function.

The invention provides a backup signal system and a train operation control method, and the system comprises a grating vibration sensor which is used for collecting a vibration signal generated when a train passes; the grating axle counting equipment is used for detecting position information and speed information of the whole train based on the vibration signal; the interlocking equipment is used for sending the signal machine state information and the position information and the speed information of the front train to the backup vehicle-mounted processing equipment when the train is degraded due to the fault reason; the backup vehicle-mounted processing equipment is used for calculating the position of a train safety protection point according to the signal machine state information and the position information and the speed information of the front train; and generating a safety speed protection curve based on the position of the train safety protection point and the route road condition information in a preset electronic map. According to the backup signal system based on the grating axle counting, accurate positioning of the train is achieved, a safety speed protection curve is generated, train tracking safety and speed curve supervision protection are achieved, and running safety and efficiency of the whole train are guaranteed.

The invention discloses an automatic security vulnerability detection method and system for rail transit signal system equipment, and the method comprises the steps: carrying out the unpacking and analysis of firmware of to-be-detected rail transit signal system equipment, so as to recognize a target file in the firmware; performing security attribute verification on the target file based on a preset rail transit security attribute rule base, including performing state consistency verification on a plurality of associated parameters in the control logic to identify security vulnerabilities caused by state conflicts; performing time sequence attribute verification on the time sequence sensitive security operation to identify security vulnerabilities caused by violation of the real-time constraint; and performing risk assessment and outputting a vulnerability detection result based on a security attribute verification result. Compared with the prior art, the method has the advantages that the formal rail transit safety attribute rule base is constructed, state consistency verification and time sequence attribute verification are carried out on the control logic in the equipment firmware at the same time, and automatic mining and risk assessment of deep business logic vulnerabilities are achieved.

The invention discloses an electromagnetic compatibility detection method and device of a rail transit signal system and electronic equipment, and relates to the technical field of electromagnetic safety. Determining an actual electromagnetic compatibility area corresponding to the equipment according to the actual distance between the actual installation positions of the multiple pieces of equipment of the rail transit signal system and a target reference line on a rail; and determining the electromagnetic interference risk condition between the relation pairs based on the electromagnetic interference information of the actual electromagnetic compatibility area corresponding to the equipment. According to the method, the electromagnetic interference scene of the actual rail transit signal system is analyzed to cover the random and coexisting electromagnetic interference combination of the field, so that the confidence coefficient of the risk assessment result in the complex electromagnetic environment of the field is improved, and the analysis is ensured to cover the random and composite scene which cannot be reproduced by the standard test; moreover, the electromagnetic interference risk condition between a relation pair formed by a plurality of devices in the rail transit signal system is determined, that is, systematic evaluation of complex electromagnetic interaction is realized through system-level analysis.

The present invention relates to an FSK and LAN protocol conversion apparatus for a rail transit signal system, wherein the apparatus includes: a control instruction sending module (TC); a device state receiving module (TK); a data validity check module (VD) connected with the TC and the TK respectively; a first Ethernet redundant communication module (LAN A) connected with the VD; a second Ethernet redundant communication module (LAN B) connected with the VD; and a system configuration and maintenance module (MAN) connected with the above modules respectively. Compared with the prior art, the present invention has the advantage of implementing network access with a new ATS system of a control center on the basis of an original system, with minimized capital investment and maximized utilization of the existing station device.

The invention provides an emergency plan management method and system based on digital display and intelligent storage. The method comprises the following steps: acquiring fault information generated by a current rail transit signal system; matching a corresponding fault processing emergency plan through a pre-trained matching model based on the fault information; the fault processing emergency plan is displayed through a visual device; wherein the pre-trained matching model is obtained by training a pre-acquired convolutional neural network model through historical fault cases and corresponding fault processing emergency plans. The problems that an existing rail transit fault emergency plan is low in response speed and difficult to be linked with a site in real time are solved.

The invention discloses an urban rail signal and platform door integrated system comprising an integrated platform door system which comprises a central control cabinet and a plurality of platform side devices; part of subsystems of the central control cabinet are connected with the signal system through Ethernet interfaces and connected with the comprehensive monitoring system and part of platform side equipment through hard wire interfaces so as to receive control signals of all parties. Part of subsystems of the central control cabinet perform logic processing on the received control signals, and the logically processed control signals are sent to platform side equipment for controlling a platform door; and the platform side equipment for controlling the platform door responds to the control signal of the highest level according to the priority sequence and executes corresponding platform door control operation. According to the invention, network security communication is adopted to replace hard wire connection, so that intermediate control links are reduced, the linkage time is greatly shortened, the linkage efficiency is improved, the number of on-line trains is reduced, and the energy consumption is reduced.