368 results about "Signaling system" patented technology

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 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 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.

Systems and methods for wireless communications are disclosed herein. In one embodiment, a wireless communication device that a first transmission on a first resource is canceled. In response to determining that the first transmission on the first resource is canceled, the wireless communication device performs a second transmission of a physical uplink shared channel (PUSCH) on a second resource. Configuration parameters of the second transmission of PUSCH on the second resource are configured by a network side or obtained from the first transmission.

A system for signaling intent of an autonomous vehicles. The system is comprised of a memory storing executable instructions representing a signaling display module on a trailer of an autonomous vehicle. The system also comprises a processor coupled to the memory and configured to execute the signaling display module. The processor is configured to receive data from an autonomy computing system descriptive of a condition near the autonomous vehicle, process the data to generate a message relating to the condition indicating a remedial action of the autonomous vehicle in response to the condition, and transmit the message to a signaling display on the trailer prior to executing the remedial action.

A turn signal system and a multi-vehicle system including the turn signal system are disclosed for creating the safe and efficient movement of objects through physical space. The turn signal system includes a straight turn signal. The straight turn signal according to embodiments disclosed herein delivers safe and clear messaging to users of pathways or roads and adds predictability. It also removes the excuse for a non-signal over the prior art methods for signaling-thus contributing to the reduction of road rage and the statement “why did you not signal.”

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 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 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.

The invention provides an associated data acquisition method, a medium and electronic equipment, and the acquisition method comprises the steps: building a business-data circulation dual-domain topology model, and endowing each data node in the business-data circulation dual-domain topology model with a dynamic initial weight; identifying data nodes with strong business semantic association, establishing data association groups, and labeling business semantic tags for data belonging to the same data association group; constructing a cross-service data interaction chain, and generating a basic acquisition baseline according to the data interaction chain; identifying high cross nodes in the data interaction chain; classifying and screening the data nodes; and collecting the data content of each data node. According to the associated data acquisition method, a dynamic data topological associated acquisition mechanism driven by service logic is provided, and accurate acquisition of the service logs is realized by constructing a mapping model of the core service logic and the data flow of the signal system and combining a multi-dimensional weight fusion judgment algorithm and an adaptive content screening engine.

The present invention pertains to the field of train positioning and communication for rail transit signaling systems, and relates to an integrated rail transit positioning and communication method and system, a device, and a medium. The present invention is aimed at modifying and redesigning a frame format of a secondary surveillance radar, and achieves train positioning for signaling system control purposes by means of time-division multiplexing of a communication frame and a positioning frame, performing ranging between a plurality of vehicle-mounted tags and ground base stations, and querying a built-in electronic map. In addition, the present invention provides three train-to-ground methods, i.e., positioning frame-based point-to-point communication, communication frame-based broadcasting, and communication frame-based point-to-point communication, to enable train control information interaction between a train and a control center, and thereby achieve communication and positioning integration. Compared with the prior art, the present invention provides a standby communication positioning system for a rail transit signaling system, which improves signaling system communication and positioning reliability, and switches to an active system when the signaling system fails, thereby ensuring the normal operation of a train operation control system.

Systems and methods of controlling a device using detected changes in a neural-related signal of a subject are disclosed. In one embodiment, a method of controlling a device or software application comprises detecting a first change in a neural-related signal of a subject, detecting a second change in the neural-related signal, and transmitting an input command to the device upon or following the detection of the second change in the neural-related signal. The neural-related signal can be detected using a neural interface implanted within a brain of the subject.

The embodiment of the present specification provides a train control method and device for a signal system when a catenary is powered off, wherein the method comprises the following steps: in the case that the train catenary is powered off, obtaining the current catenary power supply state information of the train through the signal system; based on the catenary power supply state information, disconnecting the traction of the train through the signal system, outputting emergency braking parking, and after the train is parked stably, outputting holding braking. The embodiment of the present specification can be applied to all urban rail transit projects equipped with signal systems, has strong universality, and can improve the safety of train operation.

Systems and methods for service response analysis via out-of-band signaling is provided. A system may obtain, via a first network channel, a network data packet from a network service provider. The system may determine the network data packet comprises a response code indicating a status of the request. The system may extract the response code from the network data packet. The system may generate an out-of-band response message comprising the response code. The system may send, to an external device via a second network channel, the out-of-band response message comprising the response code.

A system includes a first integrated circuit coupled to a printed circuit board (PCB) and a second integrated circuit coupled to the PCB. The system further includes a ground referenced signaling (GRS) link coupled between the first integrated circuit and the second integrated circuits through the PCB. Unencoded data is transmitted on the GRS link according to a memory coherence protocol.

The present invention relates to a locking system (20) for locking a door (15) comprising at least two locks (31). The locking system (20) has a position sensor (40) per lock (31), each position sensor (40) emitting a measurement signal carrying a locked or unlocked state of the associated lock (31), the signaling system (30) comprising a controller (50) receiving the measurement signals and being connected to an alarm (60), the controller (50) being configured to emit either an unlock signal (SDV) when at least one measurement signal carries an unlocked state of the associated lock or a locking signal if each measurement signal carries a locked state of the associated lock, the alarm (60) generating a visual unlock alert upon receipt of the unlock signal and a visual lock alert upon receipt of the lock signal.Abbreviated figure: figure 1.

The invention relates to a rail traffic unmanned aerial vehicle emergency patrol method based on an optical fiber monitoring and signal system, and the method is characterized in that the method comprises the steps: S1, obtaining all abnormal events in a target event interval and the position information of each abnormal event based on real-time physical parameters collected by a monitoring optical fiber in combination with train operation data; s2, grading the abnormal events based on the real-time physical parameters corresponding to the abnormal events to obtain grades of the abnormal events; s3, based on the position and the remaining endurance of each unmanned aerial vehicle, pairing the unmanned aerial vehicles for each abnormal event in combination with the position and the grade of each abnormal event, and performing flight path planning on each unmanned aerial vehicle based on the position of the paired abnormal event; and S4, controlling each unmanned aerial vehicle to inspect each abnormal event. Compared with the prior art, the accuracy of the abnormal event can be improved by combining the train operation data of the signal system.

A model library-based multi-domain evaluation and compensation method for space radio frequency signal quality belongs to the technical field of wireless communication. The method comprises the following steps: determining signal system parameters based on various CCSDS standards and space protocol systems, extracting relevant parameters of space standards in the time-frequency domain, generating standard time-frequency domain radio frequency signals, and converting them to related domains, modulation domains, energy domains and polarization domains to establish a sub-model library of space radio frequency signals in each domain; obtaining time-frequency domain measured signals through a receiver, comprehensively analyzing time domain information and frequency domain information, and constructing a time-frequency domain sub-evaluation model; constructing a multi-domain comprehensive evaluation model by using a parallel data transmission method and a weight data processing method; calculating the weight of each domain evaluation result by using an entropy weight method to obtain a comprehensive quality evaluation result of the spacecraft radio frequency signal; and based on distortion coefficients, using a robust signal equalization algorithm to process the signal, compensating for the influence of distortion effects on signal quality, and improving the robustness and anti-interference ability of signal transmission.

The utility model discloses a middle section control box for a mine hoisting signal system, which belongs to the technical field of control boxes, and comprises a box body, the top of the box body is connected with a top plate, one side of the front surface of the box body is provided with two hinges, and the box body is connected with a box door through the two hinges; and the box body is internally provided with a wire bunching frame capable of ascending and descending. The device has the beneficial effects that by arranging the supporting seat, when the box body is placed and used, the installation positions are conveniently separated, so that moisture is isolated, by arranging the wire bunching frame, the wire bunching opening, the pressing plate, the tension spring and the like, wire harnesses used by instruments in the box body are conveniently classified and placed, the wire harnesses are pressed and limited, and the wire harnesses are prevented from being damaged. According to the wire bunching rack, the wire bunching rack is arranged, the situation that an instrument is pulled due to the gravity of the wire bunches is avoided, the classified wire bunches are marked through the marking stickers, follow-up adjustment of workers is facilitated, and the height of the wire bunching rack is conveniently adjusted through the bearing seats, the rotating shafts and the stretching belts.

This invention relates to a control method, device, equipment, and medium for train slippage protection. The method uses a signal system to monitor the train braking process in real time, automatically identifies when the train enters a slippage state and performs displacement slippage compensation. When the duration of the slippage exceeds a set threshold, the method handles the train's loss of position and outputs emergency braking to stop the train. Compared with existing technologies, this invention has the advantages of reducing the impact of train slippage on operations while ensuring operational safety.

The invention discloses an SIL2 security level vehicle-mounted signal system and a control method thereof. The system comprises a security calculation core, a CLU3 module and an input and output VDU module. The safety calculation core comprises a CLU1 module and a CLU2 module, realizes a system safety function, and performs dual-channel data comparison and internal self-inspection; the VDU executes input acquisition and output control, a safe output channel of the VDU enters and maintains a non-output state when an internal fault is detected, and fault information is reported; the CLU3 is independently responsible for a non-safety function; wherein the security calculation core performs fault diagnosis and security level division by integrating self-inspection, dual-channel comparison and VDU report information, and generates alarm information; and the CLU3 outputs an alarm signal corresponding to the fault level to an external system or a driver according to the fault level, and final safety control is completed by the external system or the driver. Compared with the prior art, the system complexity and cost are effectively reduced on the premise of ensuring the SIL2 security level through fault grading, alarming and man-machine cooperative control mechanisms.

1. The name of the design product: plug puller (mechanical type). 2. The use of the design product: a tool for removing the plug of the end of the signal system lead, jumper wire, choke wire, etc. in the rail transit industry. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The invention provides a rapid deployment method and device for a rail transit signal system, and relates to the technical field of rail transit, and the method comprises the steps: splitting a code program of the rail transit signal system into execution codes of a plurality of business services, and constructing a container mirror image for each business service; initializing the deployment file template to generate a configuration file; based on the configuration file and the container mirror image, executing a deployment task in the to-be-deployed environment; and performing health state check on each started business service, and verifying that the rail transit signal system is successfully deployed according to the configuration file. According to the method and the device provided by the invention, the container mirror image is constructed for each business service, so that the separation of the running environment and the service application is realized; the problem of configuration complexity caused by operation environment difference is solved through the configuration file; through the configuration file and the container mirror image, the deployment efficiency of the rail transit signal system is improved, the risk caused by human errors is reduced, and the operation and maintenance cost of the system is reduced.

The application discloses a method for digital storage of relay protection setting value single, which comprises the following steps: combing the style of a PDF setting value single, making different analysis templates, converting table data in the PDF into JSON array data, storing the distance of each upper left corner, i.e. latitude and longitude, the width and height of each itself and the grid content in the JSON data, obtaining corresponding data through position characteristics, and performing structured storage. Through the digital storage of the protection setting value single, the application verifies the correctness of the protection setting value of the relay protection setting system and the protection signal system, so as to ensure the consistency and accuracy of the setting value between the systems.

A sleeve signalling system enables robust, mechanical and highly visible binary signalling. The system comprises an elongated signalling element comprising a signal marking, and a sleeve disposed over the signalling element. The sleeve is slidable along the elongated signalling element between a first position that covers the signal marking and a second position that uncovers the signal marking.

Systems, methods, and circuits for performing bidirectional communication using an edge time in a signal are provided. In one example, a method involves receiving a common signal on a signal line between one device and another. The common signal comprises a series of signal periods, and each signal period includes a first edge of a first type and a second edge of a second type, different from the first type. In each signal period of the series of signal periods, information to be communicated by the other device is determined at least based on the determined time of the first edge, and a time for a subsequent second edge with respect to the signal period is determined based on information to be communicated to the other device.The subsequent second edge is generated at the selected time in a subsequent signal period of the series of signal periods.