291 results about "Contact network" patented technology

The invention discloses an energy storage rapid compensation method and system based on track overhead line system voltage fluctuation feature recognition, and relates to the technical field of track traffic traction power supply. The method comprises the following steps: synchronously acquiring voltage and current signals of the overhead line system, and extracting a composite feature vector containing disturbance root attributes and transient change rate; on the basis of the vector, a transient energy vacancy sequence covering the ultra-short-term future is output in real time through a prediction model fusing dynamic phasor analysis and a feedforward neural network; according to the sequence, a cooperative control strategy fusing overshoot and active damping is generated in combination with a proximity compensation principle and a voltage recovery state so as to drive an along-line energy storage unit; the strategy is executed in advance, compensation energy is injected, and finally double closed-loop correction is conducted based on the voltage residual error. According to the method, the problems of response lag, unclear disturbance identification, poor collaboration and lack of adaptive ability in the prior art are solved, and advanced, accurate, collaborative and self-optimized rapid suppression of the voltage fluctuation of the overhead line system is realized.

The invention relates to the technical field of industrial clusters, and discloses an industrial cluster industrial chain construction method and device, equipment and a medium, and the method comprises the steps: obtaining supply associated data and property right associated data of an enterprise of an industry category to which a target industrial cluster belongs; constructing a directed contact network based on the supply association data; constructing an undirected contact network based on the property right associated data; calculating property right connection degrees among the nodes in the undirected connection network, and accumulating the property right connection degrees to paths with corresponding node relations in the directed connection network according to a preset weight to generate a multi-source data enhanced network; and traversing all node paths in the multi-source data enhanced network, calculating the accumulated connection strength of each node path, and determining the path with the highest accumulated connection strength as the industrial cluster core industrial chain. According to the method, the universality, professional interpretability and objective accuracy of the constructed industrial chain are improved.

The invention discloses a distributed cooperative voltage control method for a hybrid flexible traction substation group, and aims at solving the problems of output voltage cooperation, no-load circulating current suppression and multi-substation load distribution during networking operation of a plurality of hybrid flexible traction substations (HFTSS). Rapid synchronization of output voltage phases of the substations is achieved by introducing an average consistency algorithm, and nearby distribution of train loads among the traction substations is achieved by combining self-adaptive virtual impedance. According to the method, the capacity of the hybrid flexible traction substation for coping with the dynamic change of the external power grid voltage phase can be effectively enhanced, the loss of a contact network is reduced, the regenerative braking energy utilization efficiency is improved, and a feasible path is provided for large-scale application of a low-cost hybrid flexible traction power supply system and improvement of a cooperative control technology system.

The invention relates to the technical field of particle state detection, in particular to a shield sealed cabin muck state visualization system and method.According to the shield sealed cabin muck state visualization system and method, through stress direction difference matching of an SIMPLE algorithm, inter-particle shear strength distribution is converted into a computable parameter set, quantitative extraction of shear characteristics can be achieved in a complex stress environment, and the detection accuracy is improved. Stable mechanical boundary conditions are provided for flow state calculation, a numerical coupling model of momentum exchange is established, judgment of turbulent fluctuation and slow flow partitions in a flow field does not depend on empirical thresholds any more, characteristic value changes of a mathematical matrix serve as partition bases, the adaptability and accuracy of flow field partition are enhanced, and the flow field partition efficiency is improved. A main load channel in a particle contact network can be automatically identified through combination of an intensity matrix and a centrality algorithm, the connectivity is used as a core calculation index for path sorting, the structural hierarchy of load transmission is clearly presented, and a stable matrix is formed based on weighted superposition of a path shearing and supporting force ratio. Extreme point extraction enables low-stability region identification to have quantification precision.

The invention discloses an intelligent analysis system for the running state of a 3C vehicle-mounted contact network, and belongs to the technical field of crossing of intelligent operation and maintenance of rail transit and industrial artificial intelligence. And the system associates the multi-source heterogeneous observation data to a specific equipment unit through an equipment centralized data binding module. And the multi-modal feature extraction and state management unit processes the data and maintains a multi-dimensional state vector of the equipment by using the Kalman filtering updating unit. And the physical-data hybrid decision maker fuses the data driving rule and the simplified physical model to output a diagnosis result. The topology analyzer performs global verification based on a mechanical transfer rule. The system further comprises a long-term health state prediction and feedback module, early failure risks are predicted through a hidden Markov model, Kalman filtering process noise is dynamically fed back and adjusted, and cooperation of long-term prediction and short-term estimation is achieved. According to the method, the technical problems of multi-source data splitting, lack of physical basis in diagnosis and incapability of predictive maintenance are solved.

The invention discloses a contact network inspection data consistency verification method applied to 2C inspection, and relates to the technical field of railway automatic inspection. The method comprises the following steps: acquiring a 2C inspection image, and analyzing the 2C inspection image to obtain defect information; matching multi-source auxiliary data according to the defect information, and performing multi-source cross validation on the defect information based on the multi-source auxiliary data; firstly, defect information is obtained by analyzing a 2C inspection image, then multi-source auxiliary data with consistent time and space are matched for independent defect detection, confidence coefficients of consistent detection results are subjected to weighted fusion to obtain auxiliary confidence coefficients, and finally the auxiliary confidence coefficients and original confidence coefficients are subjected to weighted fusion to update the defect information; according to the method, through multi-source data collaborative verification, the problem of insufficient reliability caused by influence of a collection environment and an equipment state on a single 2C inspection image is solved, the probability of missing judgment and misjudgment of defects is effectively reduced, the accuracy of defect type recognition and the reasonability of confidence evaluation are improved, and more accurate data support is provided for overhead line system maintenance work.

The invention relates to the technical field of railway contact networks, in particular to an electrified railway anti-icing contact network and a control system.The device comprises a contact network wire and a brim flow guide structure arranged on the contact network wire in a sleeving mode; the upper part of the catenary wire is an arc-shaped surface, the middle part of the catenary wire is provided with a dovetail groove, and the lower part of the catenary wire is a conductive surface; the shape of the upper portion of the brim diversion structure is consistent with that of the upper portion of the contact network wire, the middle of the brim diversion structure extends towards the two sides to form brim-shaped diversion plates, and the brim-shaped diversion plates are used for guiding airflow to drive freezing rain water drops to slide towards the two sides so as to avoid a conductive surface; the brim-shaped flow guide plate is positioned below the dovetail groove; and after the cap-brim-shaped guide plate is sleeved on the overhead line system wire, the conductive surface can be in contact with the pantograph. Structural innovation and collaborative prevention and control logic are integrated, and the problems that an existing electrified railway anti-icing scheme is single, limited in function and insufficient in adaptability are solved.

The invention relates to the technical field of double-source power supply, in particular to an energy management method and device for a double-source power supply vehicle, computer equipment and a medium. The method comprises the following steps: S1, acquiring various types of operation data of the double-source power supply vehicle in a sliding time window; s2, predicting the predicted energy consumption of the dual-source power supply vehicle in a prediction time domain by using the trained energy consumption prediction model based on the multiple types of operation data; s3, determining availability information of a contact network for supplying power to the double-source power supply vehicle in the prediction time domain, and battery constraint conditions and pantograph constraint conditions of the double-source power supply vehicle; s4, taking the predicted energy consumption, the availability information, the battery constraint condition and the pantograph constraint condition as constraint conditions of the target function, and generating an energy configuration strategy by minimizing the target function; the energy configuration strategy comprises an energy distribution strategy of the vehicle-mounted battery and the pantograph, a pantograph operation strategy and a vehicle-mounted battery charging and discharging strategy. By adopting the method, energy switching can be carried out in time.

A miniature ice melting device for a high-voltage line comprises an ice melting body, a span string crossing part, an anchor section crossing part, a power source and power supply module, an electric energy obtaining module and a deicing driving module, and is used for obtaining electric energy from a contact line of a railway contact network through the electric energy obtaining module and providing the electric energy for ice melting work of the ice melting body. The deicing driving module and the power supply and power supply module are used for pushing the high-voltage line miniature ice melting device to advance on a contact network, the span string crossing is used for passing through a contact network dropper and a positioner, and the anchor section crossing is used for enabling the high-voltage line miniature ice melting device to smoothly pass through a contact network anchor section joint. The miniature ice melting device for the high-voltage line can continuously deice in a reciprocating manner for a long time in an electric split phase, and meanwhile, the anchor section can move to a catenary bracket led out from a non-working branch of the catenary in advance when a motor train unit or an electric locomotive passes through, so that the influence of deicing equipment on normal operation of the train is avoided, and the working efficiency is improved. The miniature ice melting device for the high-voltage line can save a large amount of manpower and material resources for deicing, and meanwhile, the miniature ice melting device for the high-voltage line can also be used for deicing on other high-voltage lines through simple transformation.

This invention discloses a method and system for acquiring pantograph contactor images, belonging to the field of railway power supply contact network detection technology. It uses a photoelectric sensor signal as a trigger. When the photoelectric sensor module detects an approaching train, it controls the pantograph imaging module to take a picture based on a system-preset speed and the radar's measured speed. After the train passes, the image's stretching / compression ratio is calculated based on the radar's final detected speed and the system-preset speed. The identified pantograph contactor image is then stretched, compressed, and segmented to obtain the final pantograph contactor image. By introducing a photoelectric sensor, both the sensor and radar can identify approaching trains. Furthermore, by combining the imaging process based on real-time radar speed measurement and a system-preset speed, even if a train is missed by the radar, the entire image acquisition process can be completed based on the photoelectric sensor's identification and the system-preset speed, avoiding the problem of missed trains by the radar.

The invention discloses a special test device for a pantograph of an electrified road. The special test device comprises a simulated contact net unit, a transverse moving sliding table, a transverse moving sliding table, a vertical moving sliding table, a pantograph moving platform and a flexible supporting platform, a pressure sensor is arranged in the middle of the simulation contact network unit; an electric cylinder is arranged in the middle of the flexible supporting platform and used for achieving the inclination angle function, and a pantograph installation platform is arranged on the upper portion. The vertical moving sliding table is located on the transverse moving sliding table, and the simulation contact network is designed to be an independent unit which can move transversely and vertically and is provided with elastic buffering. And multiple key performance tests such as static / dynamic contact pressure, pantograph lifting height, pantograph lifting time, off-network rapid pantograph lifting and durability can be completed, the simulation trueness is high, and the defects in the prior art are overcome.

The utility model belongs to the technical field of subway maintenance and operation. A battery with a switch is installed at the handheld end of a telescopic rod, the battery is communicated with a motor and supplies power to the motor, an angle adjusting mechanism is installed at the top end of the telescopic rod, the motor is installed at the top end of the telescopic rod through the angle adjusting mechanism, an output shaft of the motor is in driving connection with a chuck assembly, and the chuck assembly is provided with a cleaning brush. The angle adjusting mechanism comprises two rotating plates, one end of each rotating plate is round, a screw hole is formed in the center of each rotating plate, the straight edges of the two rotating plates are fixedly connected with the top end of the telescopic rod and the motor installation frame respectively, and the round ends of the two rotating plates are movably installed relatively and are connected and locked through locking bolts and the screw holes. Compared with similar products, the insulator cleaning device is simple in structure, light and handy in handheld use and easy to operate, the cleaning brush is driven by the motor, the cleaning quality is guaranteed, the device can stretch out and draw back freely, the angle of the cleaning brush can be freely adjusted within 280 degrees, and the requirements for cleaning insulators at different installation positions are met.

The utility model discloses an electric split-phase protection device for a contact network, and relates to the field of electrified railway traction power supply systems. The system is composed of a signal acquisition unit, an interphase fault identification unit, a fault removal unit, a power supply unit, a man-machine interface unit and an information interaction unit. An analog quantity acquisition circuit of the signal acquisition unit is connected with the interphase fault identification unit through a high-speed PCIE bus. The switching value acquisition circuit, the electric split-phase fault identification unit, the fault removal unit, the information interaction unit and the man-machine interface unit of the signal acquisition unit are connected together through the CAN bus, and the power supply unit supplies power to each unit through a device backboard power supply loop. The device is used for identifying and removing the phase-to-phase fault of the overhead line system, can improve the identification rate of the phase-to-phase fault, shortens the fault removal time, and achieves the quick removal of the fault, thereby avoiding the large-area power failure of a traction power supply system, and guaranteeing the normal operation of an electric locomotive.

The application discloses a metro flywheel energy storage system with a direct current ice melting function, which comprises a medium voltage looped network, a contact network, a running rail and positive and negative bus lines, and further comprises a metro rectification module and a flywheel energy storage module; the metro rectification module is connected with the positive and negative bus lines; the positive bus line is connected with the contact network, and the negative bus line is connected with the running rail; the flywheel energy storage module is connected with the positive bus line, the negative bus line and the running rail respectively; the flywheel energy storage module is further connected with the contact network through a circuit breaker QF, and the contact network and the running rail are connected through a remote short-circuit switch K3. The application further discloses an ice melting and energy storage method using the metro flywheel energy storage system with the direct current ice melting function. The application has both the direct current ice melting function and the flywheel energy storage charging and discharging function, the two functions are time-multiplexed through switch control, efficient utilization of the equipment is realized, and the performance-price ratio is improved.

The invention discloses a method for regulating and controlling the conductivity of a composite material based on a dynamic electromagnetic field, and the method comprises the following steps: applying dynamic electromagnetic fields with different frequencies and powers to the composite material, causing the contact network structure of a conductive filler in the composite material to change, and obtaining the resistivity change of the composite material. According to the method, the conductive filler in the composite material is subjected to Maxwell stress and electrostatic force effects caused by the electromagnetic field through the dynamic electromagnetic field effect, so that the mutual contact network structure of the conductive filler in the composite material is regulated and controlled. The resistivity of the composite material can be changed from 1 * 10 < 8 > omega.cm to 1 * 10 < 7 > omega.cm according to different effects of regulating and controlling the conductive network.

The application discloses a contact line abrasion measurement method of an intelligent contact network inspection robot, and relates to the technical field of flexible contact network abrasion measurement. The method comprises the following steps: S1, collecting original point cloud data of the flexible contact network; S2, using a circular arc search method based on noise suppression to extract a contact line point cloud profile in the original point cloud data of the flexible contact network; S3, performing profile matching on the contact line point cloud profile and a corresponding contact line standard point cloud profile in a discrete template library; wherein the discrete template library comprises contact line standard point cloud profiles of different specifications, and the contact line comprises standard circular contact lines and non-standard circular contact lines; and S4, measuring the contact line abrasion by using the contact line point cloud profile after profile matching and the contact line standard point cloud profile. The method can continuously detect the change of the wire abrasion, instead of only measuring at specific points, which is helpful for comprehensively understanding the state of the wire.

The invention discloses an internal electric double-source locomotive power source hybrid working system and a control method thereof. The system comprises a contact network power source module, a diesel engine power source module and a control module. The catenary power source module comprises a pantograph and a four-quadrant rectifier which are electrically connected; the diesel engine power source module comprises a diesel engine, an excitation unit and a main generator; the four-quadrant rectifier and the main generator are electrically connected with a locomotive load, the control module is electrically connected with the pantograph, the four-quadrant rectifier, the diesel engine, the main generator and the load, the network voltage of the pantograph and the total load of the locomotive are obtained, and the target rotating speed of the diesel engine and the target current of the excitation unit are determined according to the network voltage and the total load; controlling the diesel engine to reach the target rotating speed and the excitation unit to reach the target current; and determining the target output power of the four-quadrant rectifier according to the total load of the locomotive and the target output power of the main generator. By means of the system, power sources are output at the same time, and the operation stability of the locomotive is guaranteed.

The utility model discloses an orthosis for preventing underarm scar contracture of a burn patient, which comprises a neck fixing strip, a shoulder lapping piece is fixedly arranged on the side of the bottom end of the neck fixing strip, one side of each first tensioning strip is rotatably connected with a first movable column, an underarm orthosis mechanism comprises an arc-shaped supporting piece, and the arc-shaped supporting piece is fixedly connected with the shoulder lapping piece. Adjusting long holes are formed in the two sides of the inner wall of the arc-shaped supporting piece correspondingly, and two limiting sliding blocks are slidably connected into each adjusting long hole. The armpit orthopedic mechanism is arranged between the first movable columns connected through the first tensioning strip, the limiting sliding block is connected with the arc-shaped filler strip, and the rubber stud is rotationally connected with the arc-shaped contact net piece, so that the orthopedic device is better in ventilation effect, dryness and ventilation of a burn position are guaranteed, recovery of an affected part is promoted, and it is guaranteed that a gap is formed between the arc-shaped supporting piece and the affected part; meanwhile, the arc-shaped supporting piece and the arc-shaped contact net piece generate pressure on the scar, so that the problem of scar contracture is solved while the ventilation effect is guaranteed.

A single-fracture load isolation switch for a contact network relates to the technical field of isolation switches, and is used for solving the problem of short service life caused by defects between a main knife switch-on and switch-off time sequence and an arc extinguishing time sequence of an existing load isolation switch. Comprising a switch main body and a main knife contact plate, the switch main body is provided with a movable side wiring terminal and a static side wiring terminal, and a first end of the main knife contact plate is in hinge connection with the static side wiring terminal and is in contact connection with a static side main knife contact on the static side wiring terminal; and when the second end of the main knife contact plate is in contact with a movable side main knife contact on the movable side wiring terminal, closing is realized, at the moment, the movable side wiring terminal, the movable side main knife contact, the main knife contact plate, the static side main knife contact and the static side wiring terminal form a main conductive loop, and an auxiliary conductive loop which is arranged in parallel with the main conductive loop is also included. According to the invention, the problems of opening and closing and arc extinguishing time sequence of the main knife contact plate can be effectively solved, so that the isolating switch can work normally.

This utility model discloses a linkage-limiting contact network compensation pulley system, which includes a fixed pulley system, a movable pulley system, a compensation rope, and a wedge-shaped clamp. Its innovation lies in the symmetrical connection of two sets of foldable steel belt mechanisms between the pulley shafts of the fixed-side linkage wheel of the fixed pulley system and the movable-side linkage wheel of the movable pulley system. These mechanisms consist of long and short connecting plates hinged together by connecting plate rivets and connected into a rigid frame by a spacer bolt assembly. This achieves forced synchronous deflection between the fixed and movable pulley systems, effectively preventing the compensation rope from jumping out of its groove and from wearing. By setting backstop blocks on the fixed plates of the fixed and movable pulleys, which cooperate with the foldable steel belt mechanisms, mechanical hard limits are formed at the extension and folding limit positions, effectively preventing overtravel. Its high structural integration significantly improves the safety of the compensation system operation.

The present application relates to the technical field of railway contact network, especially relates to a kind of erecting device for railway contact network suspension column, to solve the problem of column and wall damage caused by column easy to sway and easy to collide with tunnel wall when installing suspension column currently.The present application provides a kind of erecting device for railway contact network suspension column, including moving device and stabilizing device;Moving device includes pressurized arc plate, horizontal slide plate, segmented force arm and heavy base;The inner wall of pressurized arc plate is in contact with the outer wall of preset suspension column, pressurized arc plate is connected with segmented force arm by horizontal slide plate, pressurized arc plate can move horizontally relative to segmented force arm, so that two pressurized arc plates clamp preset suspension column;Heavy base is slidably connected with guide slide rod on top, guide slide rod can move in vertical direction, to drive segmented force arm to move;Stabilizing device is arranged below pressurized arc plate, for supporting preset suspension column.

An overhead line system short circuit test system comprises a short circuit connecting line, an installation device and an electric control device. The two ends of the short-circuit connecting line are connected with a contact line connecting mechanism used for being connected with a contact line and a rail connecting mechanism used for being connected with a rail respectively, the contact line connecting mechanism comprises a U-shaped line clamp and an insulation pressing block used for pressing the contact line on the inner side of the line clamp, and the insulation pressing block is connected with a power cylinder used for driving the insulation pressing block to move. The rail connecting mechanism comprises a clamping jaw used for clamping a rail, and the wire clamp and the clamping jaw are electrically connected with the short-circuit connecting wire. The installation device comprises a rail car used for transporting the short-circuit connecting line, and the rail car is provided with a lifting machine used for driving the contact line connecting mechanism to move and a medium supply mechanism used for providing a power medium for the power cylinder. The electric control device is used for supplying power to the test loop and monitoring electrical parameters. In the whole installation process of the short-circuit connecting line, a worker does not need to climb a line pole and a cantilever, the installation efficiency can be greatly improved, and danger is also avoided.

The invention relates to the field of railway construction, and provides a railway contact network bearing wire replacement construction method which comprises the following steps: S1, preparing construction before wire replacement; s11, breaking and dismantling the existing crimping type electric connecting wire clamp, and replacing the existing crimping type electric connecting wire clamp with a bolt type electric connecting wire clamp; s12, the old elastic crane is temporarily dismantled; s13, parameters of the existing anchor section and elastic hoisting tension are comprehensively measured; s14, the anchor section parameters are divided into 30 sections of anchor section supporting column parameters, and the 30 sections of anchor section supporting columns are anchor section supporting columns from the first anchor section supporting column to the third anchor section supporting column; s15, operation vehicle marshalling: marshalling constant tension vehicles according to construction requirements; s16, making a working vehicle operation plan, and moving the working vehicle to a specified anchor section support column according to a No.30 anchor section support column; s2, line changing construction is carried out; S21, a carrier cable is replaced; s22, replacing a contact line; s3, fine adjustment construction; s31, the catenary is finely adjusted; and S4, performing dynamic inspection to recover the normal speed. The method has the effects of formulating the path of the anchor section strut and the operation vehicle and ensuring the operation stability.

The invention relates to the technical field of engineering surveying, and discloses a trackless fixed measuring device for a contact network, which comprises a measuring support and a measuring platform arranged on the measuring support, the measuring support comprises an upper supporting mechanism and a lower moving platform, the upper supporting mechanism and the lower moving platform are in butt joint up and down to form an I-shaped structure, and the measuring platform is mounted on the upper supporting mechanism. An adjusting assembly used for adjusting the horizontal height of the upper supporting mechanism and the measuring platform is installed in the middle of the top end of the lower moving platform. According to the invention, through the arrangement of the adjusting assembly, the height of the upper supporting mechanism and the height of the measuring platform can be accurately adjusted, so that the measuring platform reaches the required measuring height, the height of a track bed can be simulated, or the height of a track can be simulated through checking data and adjusting the height difference of the measuring platform, so that the measuring error is reduced; errors caused by accumulation of multiple times of measurement in traditional measurement are avoided, and the accuracy and efficiency of measurement are greatly improved.

The invention discloses a foreign matter removing device for a track contact network, and relates to the technical field of track contact networks, the foreign matter removing device comprises a box type walking vehicle, two rhombic telescopic frames are arranged in the box type walking vehicle, a base is horizontally connected between the upper ends of the two rhombic telescopic frames, and a mechanical arm is installed on the upper portion of the base. According to the foreign matter removing device for the track overhead line system, by integrating three removing mechanisms of flame jetting, water flow flushing and mechanical clamping, flexible switching and collaborative operation of foreign matter removing modes are achieved. Under the transmission action of a servo motor and a gear rack, a flame injection pipe and a water flow injection pipe can move reversely to complete stretching and storage, precise positioning is matched with a mechanical arm, the structure of foreign matter is damaged through flame combustion, then residual chippings are flushed through high-pressure water flow, and if stubborn foreign matter still exists, a claw driven by an electric push rod can further clamp and remove the stubborn foreign matter; and due to the stepped action of the triple means, the cleaning efficiency and thoroughness of complex foreign matters are remarkably improved.

The application discloses a kind of vehicle-mounted contact network insulator discharge noise detection method, storage medium and system, the method includes sampling and carrying out frequency domain filtering, filtering by signal duty cycle and carrying out spatial consistency filtering.The application is according to the characteristics of vehicle-mounted contact network insulator discharge signal, including the width, frequency, jump and other characteristics of discharge signal, designs specific filtering algorithm, effectively utilizes the signal characteristics of vehicle-mounted detection along-line equipment data, and engine background noise, cylinder exhaust sound and vibration noise do not comply with this signal characteristic.The application is simple and convenient, not affected by speed, and can be used for various vehicle models.

The invention relates to an on-line ice preventing / melting method for a railway overhead line system powered by a star-delta transformer. The method comprises the following steps that the star-delta transformer is transformed; calculating corresponding required phase differences under different ice melting current values; the phase difference is used for judging the required transformer ice melting gear K at the moment; selecting a proper number of windings according to the K value in the third step; adjusting the number of turns of the corresponding winding of the transformer according to the winding turn value in the fourth step; and switching on the isolation switch of the partition post to melt ice. The method has the beneficial effects that the phase shifting function of the adjusted transformer is utilized, so that the traction power supply system forms circulating current to melt ice, normal operation of a train in extremely cold weather such as freezing rain is ensured, and large-area train shutdown caused by icing of a contact network is avoided.

The present application relates to the technical field of contact network polishing, in particular to a rigid contact network abnormal wear automatic polishing device, comprising displacement module one, displacement module two and two polishing modules, the displacement module one and the displacement module two are the same structure, the polishing module comprises a fixed frame and a sliding frame, the sliding frame top is provided with a polishing head and a power frame, the power frame is internally fixedly connected with a power motor, and the power motor output end is connected with a transmission shaft fixedly connected with the polishing head. In the present application, the extrusion plate is fixedly connected with the reset spring, the extrusion plate can be moved a certain distance upward by the electric telescopic rod, the extrusion plate can support the sliding frame through the reset spring, and the polishing head is abutted on the contact line, so that the polishing head can be kept close to the contact line as far as possible through the reset spring when the polishing head polishes the contact line, which is beneficial to guarantee the polishing effect of the contact line.

The invention relates to the technical field of safety monitoring of rail transit traction power supply systems, in particular to an overhead line system anomaly detection method based on a generative adversarial network and LSTM coding and decoding, which comprises the following steps: S1, synchronously acquiring multi-physics field data; s2, obtaining a mixed feature vector; s3, obtaining a single frame anomaly score; s4, obtaining a robust anomaly score; s5, obtaining a comprehensive risk score of a single node in all the nodes; step S6, obtaining a verified risk score Rv of the single node; step S7, obtaining the residual life RL of a single node; step S8, carrying out continuous evolution on the residual life of the single node; and step S9, ending the current frame flow, sliding the clock window, and continuing the next frame. According to the method, the data quality of the contact network is improved, fault samples are enriched, the zero sample detection capability of the model on unknown faults is improved, residual life prediction is carried out on progressive degradation, and the operation and maintenance cost of the contact network is reduced.

The invention relates to an intelligent detection method and device for a railway overhead line system and computer equipment. The method comprises the steps that when a train travels to a target area, pressure change information of a pantograph, track information of the train and a wind power data sequence in the target area are collected, and track wind power information of the train in the target area is recognized based on the track information of the train and the wind power data sequence in the target area; based on the track wind power information, identifying a pressure change standard comparison table of the pantograph corresponding to the track wind power information through a pressure standard identification strategy, and based on the pressure change information of the pantograph, identifying contact network state information of the pantograph through the pressure change standard comparison table; and on the basis of the state information of the contact network of the pantograph, abnormal detection information of the contact network is identified through an abnormal analysis strategy, and a contact network detection result of the contact network is generated on the basis of the abnormal detection information of the contact network. By adopting the method, the detection accuracy of the overhead line system can be improved.