87 results about "Railway signalling" patented technology

The embodiment of the invention discloses a railway signal monitoring method and a railway signal monitoring system. The method comprises the following steps of: performing acquisition, convergence and format conversion on electrical characteristic information of equipment of the railway signal system and / or railway signal subsystem state information, adapting the information after the format conversion and a monitoring information processing module to form monitoring service data, and making a fault warning, early warning and statistical analysis interface according to the monitoring data after analysis and associated coupling. Because the embodiment adopts a uniform conversion format and is adapted to the information processing module of a fixed form, centralized monitoring of the equipment of the railway signal system is realized, the defects of decentralized management and decentralized maintenance of the railway signal system in the prior art are overcome, and a brand-new early warning mechanism and an intelligent expert diagnosis technique are provided. Because of high centralized degree, the embodiment optimizes the resource allocation of the railway signal monitoring system, and ensures corresponding maintenance efficiency at the same time of reducing the false alarm and missing alarm rate.

The invention discloses an automated testing system for a railway signal computer interlocking system. The automated testing system comprises a testing case executor and a testing case generator. The testing case executor at least comprises a script executor, an upper computer simulator and an input and output plate simulator. The script executor is used for reading in, analyzing and executing a testing case script, the upper computer simulator is used for achieving simulation of the communication function of an interlocking upper computer, and the input and output plate simulator is used for achieving simulation of the communication function of input and output plates. The testing case generator receives a testing scene script and actual station yard data and generates the testing case script. The automated testing system for the railway signal computer interlocking system can save testing labor and time, and improve testing efficiency and accuracy.

The present disclosure relates to a system and method for non-invasively attaching components to railroad track rails. More specifically, an anchor is provided that securely fastens to the track rail in a non-invasive manner for holding one or more signal lines to a surface of the track rail. In one embodiment, the non-invasive anchor utilizes a compressive force to clamp to a flange portion of the track rail. In this regard, first and second body members of the anchor may be advanced toward the toward opposing surfaces of track rail to compress the component between a portion of the anchor and a surface of the track rail. In one embodiment, a pawl prevents the withdrawal of these body members from one another such that the compressive force may be maintained once the anchor is applied to the track rail.

The embodiment of the invention discloses an energy-saving method, an energy-saving device and an energy-saving system of a railway mobile network base station. The method, the device and the system are used for reducing energy loss of the railway mobile network base station. The method comprises the following steps of: receiving train information sent by a railway signal system, judging whether base station communication equipment needs starting or not according to the train information, if so, determining amount and / or time of the base station communication equipment to be started, and then starting the base station communication equipment according to the amount and / or the time.

The invention provides a railway signal simulation system. The railway signal control simulation system comprises a train number simulation system, a centralized dispatching simulation system, an outdoor signal simulation system, a computer interlocking simulation system and a train control simulation system, wherein the train number simulation system is used for generating train number information; the centralized dispatching simulation system is used for generating signal control commands, dispatching commands and temporary speed-limiting commands; the outdoor signal simulation system is used for generating an equipment status signal according to the equipment status of outdoor signal simulation equipment; the computer interlocking simulation system is used for generating access status information and equipment control commands according to the received track interval safety information and equipment status signal; and the train control simulation system is used for generating the track interval safety information and temporary speed-limiting status information according to the temporary speed-limiting commands and the access status information. The railway signal control simulation system provided by the invention achieves independent debugging of actual subsystems, and improves the development test efficiency.

The invention discloses a design method of an intelligent power supply electronic converter of a general-type railway signal lamp; a converter is connected in series between a current relay in a central control room and a railway signal lamp; an electro magnetic compatibility with three-stage series surge protection function, main and auxiliary power supplies, an active power factor correction circuit, an off-line DC-DC, a signal processing circuit of which the periphery is connected with all sorts of detection circuits and a state output control circuit are connected to form the intelligent power supply electronic converter. The design method adopts surge protection, a switch power supply, a microcontroller, signal collection and processing and other technologies, and has the advantages that installation and line connection are simple, without the limitation of installation distance; the power voltage provided for the railway signal lamp is constant, the total transfer efficiency is greater than or equal to 80%; the design method specially provides a new-type LED railway signal lamp with power and the old-type railway signal lamp can be directly used by internal installation without change of the optical system of the old-type railway signal lamp.

The invention discloses a railway signal data flow storage management system. The system can be used to maintain an original text Log function and comprehensively record a data flow of a railway signal system and especially a TDCS / CTC system. When the system is used to record data, through using cache storage and compression storage modes, a data size is greatly reduced and then usage of a systemhard disk resource and a network resource is greatly decreased. Automatic dynamic switching can be performed so that data storage under two modes of local storage and remote storage is realized. Simultaneously, incremental sequence numbers are arranged for each packet of the data, only sequence number management of data storage is realized and abnormal missing during data recording is prevented. Besides, rapid positioning can be performed when the system is used to analyze an on-site fault, and according to historical data of a production environment, a basis is provided for automation testing.

The invention discloses a test scene generating method for a railway signal computer interlocking system. The method comprises the following steps that firstly, format definition is conducted on scripts for describing test scenes, wherein a three-layer XML element structure is adopted as the format of an XML file of the test scenes; secondly, all test scenes of a station yard to be tested are automatically generated, wherein elements in a second layer are used for defining names and numbers of the test scenes and types of devices to be tested, setting is conducted on test commands of elements in a third layer according to the types of the devices to be tested and correlative device types to form test commands, and the test commands are arranged in series. By means of the method, the test scenes can be precisely described, all test cases can be automatically generated according to a device comparison table of the station yard to be tested, the test efficiency can be improved, and omission and errors caused by manual testing can be effectively reduced.

The invention relates to a secure coding and railway signal security protocol (RSSP-II)-based interface realization method. The method comprises the steps of receiving information from an RSSP-II communication layer, then converting the received information into information comprising coding information, dual-channel verification information and random error detection information by a receiving conversion module, wherein the information is involved in program operation of secure coding; and generating sent information in a program of secure coding, adding dual-channel verification informationand dual-channel random error detection information to MAC information of the sent information through a sending conversion module, then framing the MAC information with high bit coding information ofthe sent information to be sent out. Compared with the prior art, the method provides a detection mechanism for random errors generated in a process from receiving the information by the RSSP2-II communication layer to using the information by the coding program, and provides a detection mechanism for random errors generated in a process from generating information by the coding program to calculating an information verification code by an RSSP-II protocol layer, thereby making the interface safer.

The invention discloses a method for the power supply of a direct current bus voltage-adjustable railway signal power module. Two stages of power conversion units are involved, and are a first-stage AC / DC unit and a second-stage DC / DC unit respectively. A voltage converted by the second-stage DC / DC unit is output to a load; an alternating current voltage Vin is converted into a relatively higher and adjustable direct current voltage Vbus(X); energy is stored in a direct current bus consisting of electrolytic capacitors; and a direct current bus voltage Vbus is a function of output power, output current and other parameters X reflecting the load characteristics of a switching power module. On the premise of reaching technical indexes of continuous power supply capacity, requirements on thecapacity of the electrolytic capacitors is reduced, a bus voltage value can be properly increased and needs in the electrolytic capacitors can be remarkably reduced. Under the condition of unrated full load, the bus voltage value is decreased, the working stress of an internal device of the switching power module is reduced, loss is reduced and the efficiency and product reliability are improved.

The invention discloses a protocol security isolation system oriented to a railway signal control network. The protocol security isolation system is composed of a first communication interface 101, a second communication interface 203, a first processor 102, a second processor 202, a high-speed dual-port RAM communication buffer memory 302, a memory RAM, a power-failure memory FLASH, a human-computer interaction platform 105 and a power module 301. The first communication interface and the second communication interface intercept and capture data, corresponding the network, from a link layer, the data are sent to the first processer to be analyzed, an analysis result and communication content are sent to the human-computer interaction platform 105 to be displayed and are written into a data base, safe network data information is sent to the second processor through the high-speed dual-port RAM communication buffer memory 302 in a ferry mode at the same time, and the safe network information is sent to a target terminal or a target network through the second communication interface 203 driven by the second processor. According to the protocol security isolation system oriented to the railway signal control network, multiple network technologies are combined and real-time monitoring and security isolation are carried out on the existing railway signal control network.

The present invention discloses a railway signal cable and a manufacturing method thereof. The railway signal cable includes a outer protective layer, a cable core and line sets and core wires in the cable core, in which the insulation layers of the core wires have structure as skin-foam-skin, at least one of the line sets includes four lines with a shielding layer, and the other do not include the shielding layer. The manufacturing method includes: manufacturing the shielding layers for the line sets, and wrapping the shielding layers out of the shielding line sets, etc.

In a railway signalling system which transmits a control order to an on-board signalling system by a trackside signalling system, the on-board signalling system being mounted on a train running on a line and the control order being compliant with a signalling system of the line, the present invention allows the train to run through into lines with different signalling systems using a single on-board signalling system. When the train enters a line with a different signalling system from a current line, the on-board signalling system installs a train control application program compliant with the signalling system of the entering line. Then, the on-board signalling system executes the train control application program, allowing the train to be controlled on the entering line according to a control order created by the trackside signalling system of the entering line.

The invention discloses a system of automatically checking railway signal interlocking route and a method thereof. The system is composed of a transportation management information system and a microcomputer interlocking control system connected in information control way; a traffic control module and a tracking module are controlled in parallel in the transportation management information system; the traffic control module controls and outputs traffic control plan information to an analyzing and judging module of a computer; the tracking module tracks and receives traffic position information and outputs a traffic position signal to the analyzing and judging module of the computer; a traffic control instruction and a traffic route instruction of the microcomputer interlocking control system and an output signal are transmitted to the analyzing and judging module of the computer; and the analyzing and judging module selects and outputs signals of a manual intervention pause execution command and a manual intervention execution command to the microcomputer interlocking control system. Using the system of automatically checking railway signal interlocking route, the route operation error caused by personal factor can be effectively avoided by automatic checking and analyzing of the interlocking control command, so that the received command can be ensured to be correct, interlocked and effective, thereby ensuring traffic safety.

The invention relates to a double-rail travelling wheel carriage and a railway lighting lamp using the same. The double-rail travelling wheel carriage comprises a rail frame, a ground travelling wheel assembly, a rail wheel assembly and a rail wheel carrier assembly, wherein the ground travelling wheel assembly is arranged below the rail frame, the rail wheel assembly is arranged below the rail frame, and the rail wheel carrier assembly is arranged at one side of the rail wheel carrier by an insulation joint assembly; when the ground travelling wheel assembly is supported on the ground, the lowest point of the rail wheel assembly and the rail wheel carrier assembly forms an impending slot with ground. By simultaneously installing the ground travelling wheel assembly, the rail wheel assembly, the rail wheel carrier assembly and the like on the rail frame, ground travelling or rail travelling is chosen according to requirements and is convenient to convert; in addition, because the rail wheel carrier assembly is installed on the rail frame by the insulation joint assembly, railway signals can not be affected even if the frame travels on double rails of the railway.

The invention discloses a railway signal turnout operation box. The railway signal turnout operation box comprises an operation indicating switch, a positioning and anti-positioning switch, a positioning and anti-positioning indicating lamp, a common fault indicating lamp, an ammeter, an air switch, a wiring terminal, a transformer, a rectifier and other related circuit connecting devices. The railway signal turnout operation box is suitable for the single body debugging of a four-wire type turnout switch machine and a six-wire type turnout switch machine, can be applied to the single body experiments of the turnout switch machines of national railways, city railway stations and vehicle sections (fields), and is a simple device for checking whether the installation and the wiring of railway signal outdoor turnout switch equipment are correct or not and whether the switch equipment can normally work or not. The railway signal turnout operation box has a simple structure and is economical and practical.

The invention relates to an auxiliary protector of computer and micro electric device, wherein said invention can be used in signal part of railway, to avoid thunder and over-voltage; said railway signal micro electro integrated thunder protector comprises: a thunder receiver, a constant-voltage shield network, a lead ground device, an anti-thunder lining tank, and a protective tank; said anti-thunder lining tank is connected to the external cable; the anti-thunder lining tank and protective tank are inside the constant-voltage shield network. The invention uses the strategy as grouped, leveled and sub device protection.

The invention discloses a railway signal machine state monitoring and steady power supply unit which comprises two rectifier filter circuits, a first breaker circuit, an SEPIC converter circuit, a current sampling and monitoring circuit, a window voltage comparator circuit, a quick restart circuit, a logical processing circuit and a second breaker, wherein the two rectifier filter circuits and the first breaker circuit are connected with the output end of a railway signal transformer, and the output end of the second breaker is connected with an optical signal unit and a warning state output circuit. The circuits of the unit can deal with various emergencies in real time and improve reliability of a signal machine. When the damage rate of LED lamps of the railway signal machine reaches 30%, the unit sends a warning signal back to a central control room while the optical signal unit continues to work; when the damage rate of the LED lamps of the railway signal machine reaches 50%, the unit sends a warning signal to the central control room while the optical signal unit is turned off forcibly; when the railway signal machine is short-circuited or undervoltag or disconnected or have other abnormal situations, the railway signal machine is shut down, and a warning signal is sent back to the central control room.

The invention discloses an energy-saving type railway signal lamp with a cleaning function. The energy-saving type railway signal lamp comprises a concrete seat, the concrete seat is fixedly installedon the ground surface, a supporting seat is arranged on the upper surface of the concrete seat, a signal lamp device is arranged on the upper portion of the supporting seat, and the signal lamp device is jointly formed by a signal lamp base located on the upper portion of the supporting seat and fixedly connected with the upper surface of the supporting seat, a rubber pad located on the upper portion of the signal lamp base and fixedly connected with the upper surface of the signal lamp base and a signal lamp housing located on the upper portion of the rubber pad and fixedly connected with the upper surface of the rubber pad; and a signal lamp hole is formed in the surface of the left side of the signal lamp housing, a light-emitting device is arranged in the signal lamp hole, and a cleaning device is arranged above the light-emitting device. The energy-saving type railway signal lamp has the beneficial effects that the structure is simple, and the practicability is high.

The invention relates to and describes an overvoltage protection device, particularly for the protection of electric low-voltage installations, comprising a unit base (2) and at least one unit top (3) that can be placed on the unit base (2). The unit base (2) comprises input and output terminals (4, 5) for electric conductors and contact elements, particularly in the form of a socket, connected to the input and output terminals (4, 5). The unit top (3) comprises counter contact elements, particularly configured as pins, corresponding to the contact elements and at least one protective element (6) connected between two counter contact elements, particularly a varistor. The overvoltage protection device can thus be used also where unacceptable operating conditions have to be transmitted directly via the protected line system, for example in the area of train signal technology. At least one line path (7) runs between two input and output terminals (4, 5) associated with each other via the unit top (3) such that the line path (7) is disconnected when the unit top (3) is not connected, and such that in at least one line path (7) in the unit top (3) at least one disconnecting element (8) is disposed such that in case the disconnecting element (8) is actuated, due to an unacceptable operating condition of the protective element (6), the respective line path (7) is disconnected even when the unit top (3) is connected.

The invention provides a method capable of effectively overcoming poor shunting of a track circuit, aiming at the defect that poor shunting of the track circuit can not be effectively overcome after once-for-all adjustment is conducted according to Railway Signal Maintenance Rules in the prior art. The method comprises the steps of: 1) under the condition that the output voltage of a track power supply transformer at a feed end is kept unchanged, measuring a corresponding relationship between the transformation ratio of a relay transformer in a track at a receiving end and the secondary voltage of the relay transformer in the track at the receiving end; 2) determining a to-be-expected transformation ratio of the relay transformer in the track at the receiving end according to the corresponding relationship; and 3) adjusting the transformation ratio of the relay transformer in the track at the receiving end to the determined to-be-expected value.

The invention discloses a mine transportation locomotive monitoring method and system, and belongs to the technical field of railway signal auxiliary transport monitoring. The method comprises the following steps that a signal of a vehicle identification card is read by using a card reading substation, and position information of a locomotive to be monitored is acquired; and the position information of the locomotive to be monitored and occupation information of roadways are calculated, and signal lamp display of a signal machine is controlled. According to the method and the system, through design arrangement and interval division, positions of a monorail crane locomotive and a trackless rubber-tired vehicle running in the same roadway space are detected through the card reading substation, the signal lamp display of the signal machine is controlled according to the positions of the monorail crane locomotive and the trackless rubber-tired vehicle and the occupation information of theroadways, so that orderly passing, avoiding and driving in sequence of two different kinds of vehicles which are driven mixedly are achieved.

The invention discloses a moisture-proof railway signal cable, which relates to the field of manufacturing of cables. The signal cable comprises four groups insulating conductors, wherein a water-blocking tape taped covering, an aluminum-plastic compound belt dampness prevention layer, a polyethylene adhesive protective layer, a longitudinal corrugated steel belt armor layer and a polyethylene outer restrictive coating are arranged in sequence outside the insulating conductors; and a petroleum butter packing layer is arranged among the insulating conductors in the water-blocking tape taped covering. By adopting the water-blocking tape taped covering, the aluminum-plastic compound belt dampness prevention layer and the petroleum butter packing layer in the cable, the cable has a good moisture prevention function.

The invention discloses a dual-spring counter-force structure of a railway signal relay, which comprises a spring counter-force structure formed by a spring, a spring fixing cover (4), a square-head screw rod (5), a nut, and a keeper (1), and is characterized in that the spring is formed by an outer spring and an inner spring (6) with different stiffness arranged on the square-head screw rod; and at the beginning stage, the inner spring (6) provides a counter force, and in the case of movement to a certain displacement, the outer spring (3) and the inner spring (6) together provide the counter force. The defect that adjustability of counter-force features of a single-spring counter-force structure is not high can be solved, improvement of anti-vibration performance of the relay is facilitated, movement features of the keeper can be well ensured, and the dual-spring counter-force structure of railway signal relay has the advantages of reasonable and compact structure, good reliability and simplicity.

An intelligent power supply switching module for the railway signalling can automatically perform the switching between two power supplys when the undervoltage, overvoltage, or phase lost occurs. It is composed of primary circuit, the overvoltage, undervoltage and phase lost detector, switching circuit and drive circuit. Its primary circuit has two input power supplys and a switch circuit consisting of serially or parallelly connected two IGBTs for output. Its advantages are high detecting and switching speed (less than 2 ms).

The invention discloses a screw-type nail extractor specifically for railway signal, which solves the problems of heavy weight, inconvenient operation and unsafety of current railway signal nail extractors. The screw-type nail extractor specifically for railway signal comprises a support sleeve, a pulling bar is accommodated in the support sleeve, the pulling bar comprises a screw, a thread is provided at the side surface of the screw, a nail clamping chamber arranged at the bottom of the screw, a rotary disk is connected to the thread outside the upper end of the screw and connected to the inner side of the upper end of the support sleeve in a movable mode, the screw and the nail clamping chamber are in an integrated structure, and the outer part of the nail clamping chamber is connected to the inner side of the support sleeve in the movable mode. The screw-type nail extractor has an all-in-one structure, and has the advantages of simple structure, free maintenance, light weight and portability, the screw-type nail extractor has small volume for adapting the entire work environment, and is suitable for large scale popularization and usage.

The present disclosure relates to a system and method for non-invasively attaching components to railroad track rails. More specifically, an anchor is provided that securely fastens to the track rail in a non-invasive manner for holding one or more signal lines to a surface of the track rail. In one embodiment, the non-invasive anchor utilizes a compressive force to clamp to a flange portion of the track rail. In this regard, first and second body members of the anchor may be advanced toward the toward opposing surfaces of track rail to compress the component between a portion of the anchor and a surface of the track rail. In one embodiment, a pawl prevents the withdrawal of these body members from one another such that the compressive force may be maintained once the anchor is applied to the track rail.

Method for preparing and checking software means to be executed by programmable control devices or plants for carrying out processes, in which: a) a programming language for expressing the software means is provided, which language is based on an abstract syntax, particularly an object oriented syntax; b) the said programming language being generated from both the source code language and the object code language; c) expressing the control program in the said programming language; d) deriving the source code format and / or the object code format of the control program by translation of the said control program expressed in the language based on the abstract syntax into the language of the source code format and / or of the object code format of the abstract syntax.

The invention provides a method for generating a railway signal interlocking data configuration tool interface. The method comprises the steps of deleting the auxiliary elements in an engineering graph to obtain a blank graph comprising the necessary elements; combining all the necessary elements contained in the blank graph, forming an independent necessary element block after each necessary element is combined, and defining a unique identification code of each necessary element block; and using a graphic tool to acquire the necessary element block after defining the unique identification code, and create the tool interface according to the data in the necessary element block. According to the scheme, the workload of manually drawing a station yard graph by using the tool is reduced to the greatest extent, namely the excessive human intervention is not needed during the graph process, and the main equipment, such as turnouts, sections and annunciators of a signal system, etc., are notneeded to be drawn manually but are generated automatically, so that the data configuration efficiency is improved, the error rate is reduced, and the labor intensity of the operators is reduced.

The invention provides a high-inflaming-resistance railway signal cable. The high-inflaming-resistance railway signal cable comprises cable cores formed by multiple insulation single wires in a twisted mode, and a first ceramic silicon rubber composite tape layer, a second ceramic silicon rubber composite tape layer, an aluminum protection sleeve, an inner protection sleeve, a double-steel-tape armored layer, a third ceramic silicon rubber composite band layer and an outer protection sleeve are arranged outside the cable cores in sequence from inside to outside. The insulation single wires comprise inner conductors and cross-linked polyethylene insulation layers. The cable is wrapped with the ceramic silicon rubber composite tapes two times, the tapes form ceramic shells not prone to falling under the flame condition of 500 DEG C-1300 DEG C or the non-flame condition, flames can be effectively insulated or high-temperature permeation can be effectively insulated, and therefore the inflaming-resistance property is quite good. According to the GB / T 19380-2008 <cable and optical cable combustion test under flame condition>, the grade of bunched combustion can reach the grade A.