41 results about "Axle counter" patented technology

The invention discloses a track axle counting device and a track axle counting method. The system comprises an electromagnetic axle counting module and an axle counting host unit, the electromagnetic axle counting module comprises an electromagnetic axle counting sensor unit and a fiber grating sensor unit; the fiber bragg grating sensor unit is used for generating a synchronously changing wavelength signal due to the change of rail stress when a train wheel passes through an axle counting point and inputting the wavelength signal into the axle counting host unit; and the axle counting host unit is used for determining whether the electromagnetic axle counting sensing unit is in an interference error axle counting state or not according to the electromagnetic axle counting current information and the wavelength signal and determining the actual axle number of the axle counting point. According to the technical scheme, whether the electromagnetic axle counting sensor unit is interfered or not is determined according to the electromagnetic axle counting current information of the electromagnetic axle counting sensor unit and the wavelength signal of the fiber grating sensor unit, then the axle counting number is judged, the situation that the electromagnetic axle counting sensor unit counts axles mistakenly due to metal foreign matter or electromagnetic interference is eliminated, and the axle counting accuracy is improved. And the safety and the stability of a train operation system are improved.

The invention relates to an active secondary train positioning device, method, equipment and medium, the device is respectively connected with a trackside beacon and an interlocking subsystem, the device comprises a vehicle-mounted backup positioning subsystem BLS and an indoor backup positioning subsystem WBLS, the vehicle-mounted backup positioning subsystem BLS acquires trackside beacon information, and the indoor backup positioning subsystem WBLS acquires the trackside beacon information. And the beacon ID is sent to the indoor backup positioning subsystem WBLS, and the indoor backup positioning subsystem WBLS calculates the occupation state of the secondary detection section SDD according to the beacon ID and sends the occupation state to the interlocking subsystem. Compared with the prior art, the method has the advantages that passive secondary train positioning devices such as trackside axle counters or track circuits are reduced, the equipment maintenance workload can be reduced, and the whole life cycle cost of the system is reduced.

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 present application relates to the technical field of rail transit, and in particular to a wheel sensor and an axle counting system. The wheel sensor is used for detecting the rim of a train wheel and converting a detected signal from an analog signal to a digital signal, and the wheel sensor is laid on a rail; a junction box is arranged near each wheel sensor, junction boxes are in one-to-one correspondence with wheel sensors, and each junction box is connected to the adjacent junction boxes in front of and behind same; and all the junction boxes along the railway are cascaded and then connected to an axle counter host. The wheel sensor comprises: a linear feedback circuit used for feeding back the oscillation amplitude of an oscillation circuit in the wheel sensor in real time, and an excitation frequency adjusting circuit used for adjusting the oscillation circuit on the basis of the oscillation amplitude of the oscillation circuit, so as to adaptively control the oscillation amplitude of the oscillation circuit. The stable operation of the wheel sensor is ensured; cable laying costs can be reduced, the cable can transmit a sufficiently large amount of data, is not easily susceptible to interference, and has high reliability; and manufacturing costs are lowered.

The present invention provides an electromagnetic interference prediction modeling, prediction method and system, including: establishing a key cable harness model; establishing a grounding system model of a traction transformer and a traction motor; establishing an equivalent model of a traction motor based on the fact that when the frequency is high, the internal structure of the traction transformer and the traction motor will form a common mode path due to parasitic capacitance, and the conductor carrying a high-frequency common mode current will generate undesirable electromagnetic radiation; establishing a three-dimensional model of a car body, a rail and an axle counter magnetic head; connecting the above models according to the relationship between the corresponding entities of the model, and establishing an overall radiation model of the interference of the traction converter system to the axle counter. The model can more accurately describe the impact of the EMC interference generated by the traction power supply system of an intercity train on the axle counter.

One aspect of the present invention relates to a decommissioning system for decommissioning one or more track sections in a railway network. A decommissioning system may be understood as a system designed to interface with railway signalling systems to simulate track occupancy, thereby preventing train movements in designated sections for safety purposes. The purpose of such systems is to enable maintenance or other work on or around tracks without compromising safety or disrupting broader railway operations.

The application provides a train sequencing method, system and storage medium, which is applied to a train control system based on train-to-train communication. The train control system based on train-to-train communication stores virtual section data for representing the position of a train in a whole track, and a vehicle list for representing the front-back relationship of the train in each virtual section. Each virtual section corresponds to a vehicle list. The method comprises the following steps: receiving a current position reported by a train; determining a current virtual section to which the train belongs and a current vehicle list in the current virtual section according to the current position; when the current virtual section changes or the current vehicle list changes, finding a front train of the train, and updating the front train relationship of the train. Through the scheme of the application, the dependence on trackside axle counters can be avoided, the overall sequencing of trains in the whole line is automatically completed by the train control system based on train-to-train communication, and the technical problem that the front train cannot be found in train-to-train communication is solved, which is beneficial to realizing train-to-train communication.

The utility model discloses a doppler microwave radar-based axle counting speed measurement control device special for railways, which relates to the technical field of railway safety, and particularly comprises a rail, a hole is formed in the inner side of the rail, a back buckle is movably mounted on the inner side of the hole in a penetrating manner, a ratchet groove is formed in the inner side of the back buckle, and the ratchet groove is communicated with the hole. A through hole is formed in one end of the inner side of the back buckle, a threaded hole is formed in the middle of the back buckle, a front plate is movably installed on the other side of the rail, connecting columns are fixedly connected to the two ends of one side of the front plate, and the two connecting columns are matched with the two ends of the back buckle correspondingly. And a plurality of movable grooves distributed in an annular array are formed in the inner side of the connecting column. The back buckle and the front plate can be gathered together through matching of the bolt and the threaded hole, so that installation is achieved, meanwhile, the ratchet bolt and the ratchet groove are matched, limiting can be automatically achieved after installation, and the situation that the device is installed loosely due to vibration generated when a train runs is avoided.

The invention relates to the technical field of axle counter immunity testing, in particular to an axle counter immunity testing system, method, device and equipment, a medium and a product, and the system comprises a measuring unit which is arranged on a track and is used for measuring the amplitude and frequency of an interference signal; the injection unit is arranged to rotate around the measurement unit and emit interference signals in different directions; by arranging the axle counter immunity testing system comprising the measuring unit and the injection unit, the injection unit rotates around the measuring unit and emits interference signals in different directions, so that interference magnetic fields in different directions can be simulated, and the immunity of the axle counter under interference in different directions can be comprehensively evaluated.

The invention relates to the technical field of railway operation management, in particular to a railway axle counter monitoring system and method for the rail transit equipment industry, and the method comprises the steps: analyzing the matching degree of an axle counter counting mode and train operation characteristics through an operation characteristic matching degree analysis model; analyzing the interference degree of the counting mode of the axle counter in the section operation environment through a counting environment interference degree analysis model; constructing a counting mode adaptation risk assessment model, and assessing the adaptation risk of the counting mode of the axle counter in the railway operation section; according to the adaptation risk assessment result of the axle counter counting mode in the railway operation section, adjusting and early warning are carried out on the axle counter counting mode; the running state of the axle counter can be tracked in real time, the problem of axle counting deviation caused by train axle load difference and environmental interference can be found and solved in time, the counting mode of the axle counter can be adjusted in time, and it is ensured that counting of the axle counter is always accurate and reliable.

The present invention provides an intelligent diagnosis and processing system for the state of track circuits, comprising: a track circuit, axle counters, a fault analyzer, and a drive circuit; the transmitting device and the receiving device of the track circuit are respectively located on both sides of the track in the measured target area; the two wheel detection sensors of the axle counter are arranged on both sides of the track in the measured target area respectively; the fault analyzer is used for detecting faults of the track circuit, and when a track circuit fault is detected, outputting a trigger signal to the drive circuit; the drive circuit is used for, when the track circuit fails, controlling the axle counter to detect the idle state of the track in the measured target area, discovering problems existing in the track circuit and solving them in time without the need for human participation, thereby preventing accidents from occurring.

Embodiments of the present application disclose a communication device applied to axle counters and an axle counter communication system. The device includes: an acquisition unit for acquiring and sending the section occupancy result signal output by the axle counter; a plurality of processing units, each processing unit being used to identify the section occupancy result signal to obtain the corresponding section occupancy result information, and storing part of the information in the section occupancy result information; a verification unit for verifying whether the verification fragment information stored by the processing unit is the same as the output fragment information stored by the corresponding processing unit; when the comparison fragment information stored by each processing unit is the same as the output fragment information stored by the corresponding processing unit, combining all the output fragment information into complete section occupancy result information and outputting it. In the present application, the verification unit ensures the accuracy of the complete section occupancy result information output, so that the interlocking device can obtain accurate section occupancy result information.

The present invention provides a turnout zone intrusion alarm apparatus and method. Upon detecting that a train enters a turnout intrusion protection zone or detecting that the train leaves the turnout intrusion protection zone, the axle counters each send a corresponding axle entry signal or axle exit signal to a corresponding zone intrusion protection alarm device; if the turnout intrusion protection zone is idle, the zone intrusion protection alarm device receives an axle entry signal triggered by a communication vehicle having movement authorization, and if receiving an axle entry signal triggered by an intruding vehicle before receiving an axle exit signal triggered by the communication vehicle, then sends alarm information to an interlocking device; the interlocking device turns off an opened annunciator, and forwards the alarm information to a zone controller; the zone controller sends an instruction for invalidating the movement authorization, so that the communication vehicle is braked. In the present solution, the turnout zone intrusion protection alarm information can be directly determined on the basis of the axle entry signals and axle exit signals sent by the axle counters, so that compared with the prior art, the input information is simple, and the response speed is faster.

The embodiment of the invention provides a train screening method and device, computing equipment and a computer readable storage medium. The method comprises the steps that train data sent by a target train are obtained, and the train data comprise the reference wheel pair number of the target train; the number of target wheel pairs recorded by a starting point axle counter in a target section where the target train is located is obtained, the target section comprises an axle counting section between two adjacent idle axle counting sections, and the idle axle counting sections are axle counting sections not occupied by the train; and based on the reference wheel pair number and the target wheel pair number, quantitative relation analysis is conducted, the target screening state of the target train in the target section is determined, and the target screening state represents the screening state of the front side and the screening state of the rear side of the target train in the driving direction. According to the method, the train screening efficiency can be improved, and the train operation efficiency is correspondingly improved.

The invention provides a dual-redundancy axle counting method, axle counting hosts and a dual-redundancy axle counting system.After each axle counting host in a station receives an output signal of a wheel sensor, the output signal of the wheel sensor is converted to obtain a digital signal of the wheel sensor, and then the digital signal of the wheel sensor is calculated based on the digital signal of the wheel sensor. Determining first axle counting data; sending the first axle counting data to an axle counting host of an adjacent station, and receiving second axle counting data sent by the adjacent station; then, according to the first axle counting data and the second axle counting data, section state information is determined; and finally, determining a section occupation result by combining the section state information with section state information output by other axle counter hosts in the station. Through redundancy configuration, normal application is not affected when any part or channel breaks down or is disturbed, and the availability and reliability of the axle counting system are greatly improved.

The utility model relates to the field of axle counting sensors, and particularly discloses a railway axle counting sensor train velocimeter which comprises a data control box and an axle counting sensor, the axle counting sensor is provided with a fixing mechanism, the fixing mechanism comprises a rotating sleeve and a meshing lug plate, a first screw rod is installed on the inner side of one end of the rotating sleeve, and a second screw rod is installed on the inner side of the other end of the rotating sleeve. And a second lead screw is installed on the inner side of the other end of the rotating sleeve, a kidney-shaped hole is formed in the axle counting sensor, a positioning lantern ring is installed in the kidney-shaped hole, a suction cup is arranged at the position, located below the axle counting sensor, in the positioning lantern ring, and a warping rod is installed at the upper end of the suction cup. The whole rotating sleeve can synchronously rotate in a meshed mode with the first lead screw and the second lead screw, the first lead screw makes contact with the lower jaw of the rail head, the second lead screw makes contact with the rail bottom, and after the whole axle counting sensor is supported on the inner side of the rail, it is guaranteed that the whole axle counting sensor is stably installed.

The invention relates to a train control method, and belongs to the technical field of rail transit. The autonomous sensing system comprises a sensing system and an autonomous sensing host; the axle counter is arranged in the fault parking area and is used for positioning the train in the fault parking area; when the train-ground communication system breaks down and the autonomous sensing system is effective, the train runs in a first control mode, and in the first control mode, the automatic train protection system obtains train running data based on the autonomous sensing system, carries out train positioning and mobile authorization control. The invention designs a train operation control mode under the condition of a simplified axle counter, an annunciator and a transponder, and multi-mode descending-level train operation control is realized.

A procedure for evaluating a data set (110) is described, comprising the following procedure: i) Recording a one-dimensional time history as a data set (110) using an axis counter (100); and ii) Evaluating the data set (110) by identifying signals in the one-dimensional time course and classifying the signals in the one-dimensional time course in one step using a one-step deep learning-based algorithm (150).

The application provides a heavy goods transportation weighing system, and relates to the technical field of dynamic weighing.The technical scheme is as follows: two portal frames are installed above a weighing lane at intervals, a dynamic scale platform is arranged between the portal frames, and a license plate recognition camera is arranged on one side of the weighing lane and in front of the weighing platform.The dynamic scale platform comprises a base and a weighing platform installed on the base.A scale-out axle counter is installed at the front end of the weighing platform, a scale-in axle counter is installed at the rear end of the weighing platform, the upper surfaces of the scale-out axle counter and the scale-in axle counter are flush with the upper surface of the weighing platform, an axle recognition device is installed behind the dynamic scale platform, and two of the portal frames are provided with snapshot cameras.The system has the advantages of accurately judging the state of vehicles entering and leaving the weighing platform, improving the accuracy of weighing data, monitoring the driving state of vehicles in real time, and improving the matching degree of license plate recognition.

The present invention provides an interface configuration method, device and medium based on an axle counting simulation system, the method comprising: obtaining configuration data, and reading basic device attributes based on the configuration data; if it is determined based on the basic device attributes that the corresponding axle counting device belongs to an axle counting system type device, then initializing the corresponding basic device attributes; after completing the initialization of the basic device attributes, obtaining the corresponding device type mask, and based on the device type mask, determining the corresponding axle counting device and obtaining the corresponding interface private attributes; initializing the interface private attributes. The present invention is used to solve the defects of the interface configuration method, device and medium based on the axle counting simulation system in the prior art, and can realize the rapid expansion and adaptation of the communication interface between the axle counting simulation system and the interlocking logic unit software, the reuse of configuration data, the convenient and reliable test operation, and effectively improve the availability and maintainability of the test system.

The utility model provides a kind of axle counter anti-interference system suitable for 27.5KV system line, by optimizing the installation position of axle counter sensor along track, using electromagnetic shielding and distance attenuation principle, avoid its in strong electromagnetic interference source vicinity, reduce the influence of outside interference to axle counter sensor, to reduce the axle counter failure incidence;Specifically, according to different ballast type to take different anti-interference measures: for main line whole ballast, using axle counter point two ends separate grounding technology, utilize the low resistance characteristics of ground net, the interference current generated by rail return flow is introduced into the earth, reduce the traction current flowing through axle counter sensor, ensure the stable operation of axle counter equipment;For vehicle depot field gravel ballast, using current sharing technology, the rail return flow before and after axle counter point is evenly distributed to the surrounding track, effectively weaken the interference influence of large current on rail to axle counter sensor, ensure the normal work of axle counter equipment in the complex environment of vehicle depot.

A railway axle counting device belongs to the field of railway axle counting. The device comprises a fixed base, a lifting adjusting seat, a locking bolt, a sliding block nut, a quick dismounting and mounting mechanism and a mounting plate, at least two vertically-arranged sliding grooves are formed in the upper portion of the fixed base, communicated kidney-shaped sliding holes are formed in the front sides of the sliding grooves, the sliding block nut is arranged in the sliding grooves in a sliding mode, and the quick dismounting and mounting mechanism is arranged on the mounting plate. The locking bolt sequentially penetrates through the lifting adjusting base and the kidney-shaped sliding hole and then is in threaded fit with the sliding block nut, the top of the lifting adjusting base is provided with a quick disassembling and assembling mechanism, the top of the quick disassembling and assembling mechanism is provided with a mounting plate, and the top of the mounting plate is provided with a railway axle counter. According to the railway axle counter, the problems that the railway axle counter can be independently and rapidly disassembled and assembled, the height is adjustable, and repositioning and adjusting do not need to be conducted every time when the railway axle counter is disassembled and assembled are solved, operation is simpler, rapider and more convenient, practicability is higher, working efficiency is greatly improved, assembling and disassembling can be conducted more rapidly, and therefore working time and labor cost are reduced.

The embodiment of the invention provides a non-communication train tracking method and device and computing equipment, and the non-communication train tracking method comprises the steps that a non-communication train is determined, the state of a current axle counting section of the non-communication train and the state of an axle counting section adjacent to the current axle counting section are determined, and a train list cached in the current axle counting section is obtained; acquiring a previous axle counting section passed by the non-communication train; and tracking the non-communication train according to the state of the current axle counting section, the state of the adjacent axle counting section of the current axle counting section and / or the last axle counting section passed by the non-communication train and the train list cached in the current axle counting section. The non-communication train is tracked by integrating various kinds of information, the accuracy of tracking the non-communication train is improved, the continuity of tracking the non-communication train is achieved, normal operation of functions such as train automatic route, train operation adjustment and the like can be guaranteed, and meanwhile the service level of the system can be improved.

An intelligent parking system for the rear of a marshalling yard. The present invention relates to a parking system. The purpose of the present invention is to solve the problems that the parking system at the rear of the marshalling yard cannot dynamically adjust the system capacity, the efficiency of visual observation and experience judgment is low, it is not accurate enough, and it is easy to cause accidents. The fourth stopper, the first stopper, the second stopper and the third stopper are installed on the railway track. The weighing sensor and two axle counter sensors are installed on the railway track. An intelligent shoe-on device for the iron shoe is installed on the railway track behind the fourth speed sensor. The first track circuit, the second track circuit and the third track circuit are installed on the railway track. The first stopper, the second stopper, the third stopper, the fourth stopper, the weighing sensor, the first speed sensor, the second speed sensor, the third speed sensor, the fourth speed sensor, the two axle counter sensors and the circuit distribution box are connected to the indoor parking controller. The present invention belongs to the field of railway parking.

The utility model discloses an aging monitoring device for an axle counting sensor. The aging monitoring device comprises a plurality of aging acquisition boards, a converter connected with the aging acquisition boards through a CAN bus, a switch connected with the converter, and a step-in high and low temperature test box used for providing a high and low temperature test environment for the axle counting sensor, the monitoring device can collect state information of the axle counting sensor in real time, record module value voltage curves of each sensor at different temperatures in real time, facilitate screening of sensors which do not meet requirements, collect data of different temperature working conditions of the axle counting sensor, and improve the detection accuracy of the axle counting sensor. And analysis of fault reasons of the axle counting sensor under different temperature working conditions is facilitated.

The application provides a kind of axle counting section ARB state judging method, device, equipment and medium, the method includes when interlocking reports is occupied state, if the target axle counting section is judged to be idle state before occupied state, the maximum communication delay time between the front and rear axle counting section area controller and interlocking is determined respectively, and the maximum communication delay time between the target axle counting section area controller and adjacent axle counting section area controller, and according to the highest speed limit of axle counting section, the first delay allowed running distance of train arriving target axle counting section is calculated, and the second delay allowed running distance after train leaves target axle counting section, so that the section corresponding to the first delay allowed running distance and the second delay allowed running distance is respectively regarded as the rear section and front section of target axle counting section;With axle counting device working cycle as determination cycle, if the occupied state of front section and rear section in last cycle is idle or ARB, then the target axle counting section is determined as ARB state.

The invention discloses a sensor signal waveform multi-dimensional feature recognition method, which belongs to the technical field of rail transit, and comprises the following steps: acquiring an original signal of an axle counting sensor; carrying out noise reduction processing on the original signal by adopting a Kalman filtering algorithm, and outputting a filtered signal; processing and distinguishing are conducted through an amplitude distinguishing algorithm, a single-waveform symmetry distinguishing algorithm, a single-pulse curve slope distinguishing algorithm, a single-pulse curve slope distinguishing algorithm and a double-pulse waveform similarity distinguishing algorithm, if distinguishing results all meet the requirement, the pulse waveform is finally judged to be an effective pulse waveform, and if any one of the distinguishing results does not meet the requirement, the pulse waveform is judged to be an effective pulse waveform. And finally determining the pulse waveform as an invalid pulse waveform. In the output signal identification of the axle counting sensor, a method based on multi-feature identification is provided for the first time, so that the signal identification accuracy is greatly improved, and the anti-interference performance of equipment is enhanced; meanwhile, signal quality can be identified, interference signal types can be judged, and a basis is provided for signal monitoring.

A method for counting axles, wherein a wheel passes an axle counter sensor mounted on a track, the axle counter sensor generates a measurement signal (U1 ... U2), and a curve (VL1 ... VL2) of the measurement signal (U1 ... U2) is evaluated in a computer-aided manner to distinguish the wheels. When evaluating the measurement signal (U1 ... U2), at least one maximum (M1 ... M4) of the signal amplitude is sought in the curve (VL1 ... VL2) of the measurement signal (U1 ... U2). A dynamic time normalization is performed on the curve (VL1 ... VL2) of the measurement signal (U1 ... U2) before and after the maximum value (M1 ... M4). The curve (NV1 ... NV2) of the measurement signal (U1 ... U2) normalized by amplitude normalization and time normalization is compared with a pattern (M1 ... M2) of at least one curve (VL1 ... VL2) for the measurement signal (U1 ... U2) when a wheel (RD) passes by and at least one curve (VL1 ... VL2) for the measurement signal (U1 ... U2) when an error occurs. The invention also includes a computer program product and a device for providing a computer program product.

The utility model relates to the technical field of railway construction, in particular to an axle counter protection device in existing line construction, which comprises a left protection cover, a right protection cover and a steel rail, nylon son buckles are welded on the front side and the rear side of the right side of the top of the left protection cover, and nylon mother buckles are welded on the front side and the rear side of the left side of the top of the right protection cover. The left side of the left protective cover and the right side of the right protective cover are fixedly connected with positioning cylinders in a penetrating mode, inner cavities of the positioning cylinders are in threaded connection with lead screws, and the opposite ends of the lead screws are movably connected with protective shells through bearings. Through cooperation of the left protection cover, the right protection cover, the steel rail, the nylon son buckle, the nylon mother buckle, the positioning cylinder, the lead screw and the protection shell, the axle counter protection device has the advantage of protection function, the left protection cover and the right protection cover are fixed to the two sides of the steel rail through the nylon son buckle and the nylon mother buckle, and the axle counter can be protected under the action of the right protection cover and the left protection cover; and collision and rubbing of foreign objects are avoided.

The utility model discloses a tool for assisting an axle counting simulation wheel to be perpendicular to a steel rail, which comprises a fixing frame, a clamping groove with an upward opening is arranged on the fixing frame, the simulation wheel can be embedded in the clamping groove, a first side wall and a second side wall which are oppositely arranged are arranged in the clamping groove, and the simulation wheel can abut against the first side wall when located between the first side wall and the second side wall. A pressing plate and a bottom plate are horizontally arranged on the side, close to the second side wall, of the fixing frame, the bottom plate is located at the bottom of the fixing frame, the pressing plate is fixed above the bottom plate in a liftable mode, the lower surface of the pressing plate and the upper surface of the bottom plate are parallel and perpendicular to the first side wall, and the pressing plate can be tightly connected with the upper surface of the steel rail. The upper surface of the bottom plate can abut against the lower surface of the steel rail. The device is simple in structure and convenient to use, can enable the simulation wheel to be perpendicular to the steel rail during test adjustment of the axle counting system, guarantees that the posture of the simulation wheel is consistent with the posture of a wheel cutting magnetic field when a train passes, is accurate in measurement data, can reduce the measurement time, and has the effect of improving the test efficiency.