CN109240265A - A kind of railway signal system and intelligent failure diagnosis method - Google Patents
A kind of railway signal system and intelligent failure diagnosis method Download PDFInfo
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- CN109240265A CN109240265A CN201811093183.0A CN201811093183A CN109240265A CN 109240265 A CN109240265 A CN 109240265A CN 201811093183 A CN201811093183 A CN 201811093183A CN 109240265 A CN109240265 A CN 109240265A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
- G05B23/0221—Preprocessing measurements, e.g. data collection rate adjustment; Standardization of measurements; Time series or signal analysis, e.g. frequency analysis or wavelets; Trustworthiness of measurements; Indexes therefor; Measurements using easily measured parameters to estimate parameters difficult to measure; Virtual sensor creation; De-noising; Sensor fusion; Unconventional preprocessing inherently present in specific fault detection methods like PCA-based methods
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Abstract
The invention discloses a kind of railway signal system and intelligent failure diagnosis methods, railway signal system includes signal system and lightning-arrest network system, signal system includes computer control platform and external signal equipment, external diagnosis source of early warning, fault-tolerant and security managing unit is equipped with inside computer control platform, external device management unit, and Logical processing unit, lightning-arrest network system includes cable lightning arrester, signalling arrangement lightning arrester and control room lightning arrester, intelligent failure diagnosis method includes checking the working condition for monitoring each signalling arrangement, failure expert system receives fault-signal and provides the prompt information of maintenance proposed projects to technical staff, communication efficiency is high, improve the safety of efficiency of fault diagnosis and railway signal system, serious forgiveness, the signalling arrangement and letter of railway signal system are protected using a variety of lightning protection devices Number transmission path, improves equipment life and lightning protection capability, the fault knowledge library of design accelerate the efficiency of handling failure.
Description
Technical field
The present invention relates to railway signal system field, specially a kind of railway signal system and intelligent failure diagnosis method.
Background technique
Railway signal system is usually by Automatic Control Systems for train operation system (ATC) and the big portion of rolling stock section's whistle control system two
It is grouped as, for train route control, train interval control, dispatch control, information management, equipment working condition monitoring and maintenance pipe
Thus reason constitutes an efficient complex automatic system.
Railway signal system is to guarantee train operating safety, realizes train traffic control and train operation modernization, improves transport
The critical system equipment of efficiency.
The effect of railway signal is to guarantee train operating safety, effectively improves rail transportation efficiency, reduces transportation cost,
The working condition of driving personnel is substantially improved, therefore railway signal equipment is to organize and direct train operation, guarantee traffic safety, mention
High conevying efficiency, transmitting running information, the key equipment for improving driving personnel's working condition.
But existing railway signal system has the following deficiencies:
(1) only one master computer of railway signal system trusted computer system and one are from computer, master computer
With the operation of the processing and data that both participate in signal from computer, master computer output is as a result, but when one of computer is outstanding
When it is master computer damage, calculated result just can not be exported, to influence the normal work of railway signal system；
(2) signalling arrangement and signal network line, power line often work in open-air atmosphere, are easy the shadow by extraneous thunder and lightning
It rings, gently then makes signal transmitting disorder, signal that delay, computer be conveyed to receive signal inaccuracy, heavy then the high current of thunder and lightning or height
Heat is split bad or burns out signalling arrangement, so that the safety and stability of railway signal is affected, though there is general lightning arrester,
But general lightning rod or arrester can only keep away 50% lightning current, and lightning current when flowing through electric wire, grid line because of high potential
The spark and high temperature that difference generates easily melt the insulated hull of electric wire or grid line, in turn result in the danger of short circuit；
(3) method for diagnosing faults is relatively backward, and troubleshooting efficiency is slow.
Summary of the invention
In order to overcome the shortcomings of prior art, the present invention provides a kind of railway signal system and intelligent trouble diagnosis side
Method, Logical processing unit, fault-tolerant and security managing unit cooperation Logical processing unit and external device management unit collectively constitute
The two of trusted computer system multiply two and take two structures and Dual Module Hot Spare Architecture, and communication efficiency is high, improve efficiency of fault diagnosis,
Safety, the serious forgiveness for improving railway signal system protect all controls of railway signal system using a variety of lightning protection devices
System processed, signalling arrangement, signal transmission path, improving equipment life and lightning protection capability, the fault knowledge library of design examines failure
Disconnected system can update fault message and corresponding best solution malfunction approach information at any time, accelerate the efficiency of handling failure, energy
The problem of effective solution background technique proposes.
The present invention solves the technical solution that its technical problem is passed through:
A kind of railway signal system, including signal system and lightning-arrest network system, the signal system include computer control
Platform processed and external signal equipment, external diagnosis source of early warning, the external signal equipment, external diagnosis source of early warning with meter
Calculation machine control platform is connected；
Fault-tolerant and security managing unit, external device management unit and logic are equipped with inside the computer control platform
Processing unit, fault-tolerant and security managing unit, external device management unit and three units of Logical processing unit are equal between any two
With incidence relation；
The lightning-arrest network system is mounted on signal system side, the lightning-arrest network system include cable lightning arrester,
Signalling arrangement lightning arrester and control room lightning arrester, cable lightning arrester, signalling arrangement lightning arrester, control room lightning arrester
It is connected between any two by leading thunder line.
Further, the Logical processing unit includes four LPU, and two of them LPU is located under x framework, another two LPU
It is located under PowerPC framework, two under x framework LPU selects different operating systems from two LPU under PowerPC framework
Its function is realized with language is become.
Further, the external device management unit includes four PMU, and two of them PMU is located under x framework, and another two
A PMU is located under PowerPC framework, and two under x framework PMU selects different operations from two PMU under PowerPC framework
System and becomes language and realize its function.
Further, described fault-tolerant and security managing unit includes two FTSM, and one of FTSM, which is based on ARM framework, to be made
Its function is realized with C voice, another FTSM is based on DPGA framework and realizes its function using hardware description voice.
Further, the signalling arrangement lightning arrester includes the lightning protection for power supply being mounted on signalling arrangement power supply, peace
Network signal lightning protection device on ethernet network interface and the combination siganl thunder-proof device being mounted in monitoring device, power supply are anti-
Thunder device, network signal lightning protection device are connected by equipotential line between any two with combination siganl thunder-proof device.
Further, the control room lightning arrester includes the lightning shielding net being connected with indoor non-signal line conductor,
The top of lightning shielding net is connected with lightning rod, and lightning shielding Netcom, which is crossed, to be led thunder line and be connected with equipotential case.
Further, the cable lightning arrester includes the lightning protection high temperature resistant protection pipe being set on the outside of cable and electric wire,
Several insulating barrier items are installed in lightning protection high temperature resistant protection pipe, are equipped on the outside of lightning protection high temperature resistant protection pipe by wire casing several
Parallel copper wire is connected between adjacent two copper wire by several arc conducting wires, and copper wire is led by equipotential line and train
Rail leads thunder line and is connected.
In addition, the present invention also provides a kind of intelligent failure diagnosis methods of railway signal system, including sets up failure and examine
Disconnected system, fault diagnosis system includes station equipment working condition detection system, real-time monitoring system and failure expert system, is
The process of system troubleshooting includes the following steps:
S100, station microcomputer check the various sensors, monitoring machine, interface equipment, in real time inspection of monitored state detection system
The working condition of measuring car station signalling arrangement, and the working machine of microcomputer detecting system records, the status information of signalling arrangement, meets
The phenomenon of the failure information of failure symptom；
S200, fault message are transferred to failure expert system by information interface and Ethernet approach, and system passes through knowledge
After processing and analysis, the failure cause prompt information of signalling arrangement and railway signal is obtained；
S300, failure expert system provide the prompt information of maintenance proposed projects according to fault knowledge library；
S400, railway technology personnel, in conjunction with the viewpoint and opinion of expert, formulate railway dimension by further testing and judging
Repair scheme.
Further, the failure expert system has according to the abnormal signal for receiving the transmission of signal detection supervision equipment
Information judges the function of failure cause, if failure expert system does not judge that failure cause and true fault reason are variant,
Failure expert system, which collects this failure and enters fault knowledge library, to be saved, and each failure expert system detects new failure classes
New failure can be also saved into fault knowledge library by type.
Further, the establishment step in fault knowledge library is as follows:
The normal condition and various abnormalities of S201, failure expert system acquisition signalling arrangement, generate status information number
According to library, example set is formed, example set includes fault category, failure cause and the diagnosis efficiency of railway information；
S202, failure decision tree is generated using Fault Tree Analysis；
S203, by decision tree decision and maintenance set of suggestions get up, formed solution collection；
S204, the experience and decision also typing solution for obtaining expert by reasoning and the practical maintenance of railway technology personnel
Scheme collection, solution suggestion and reference as railway signal fault.
Compared with prior art, the beneficial effects of the present invention are:
(1) Logical processing unit of the invention, fault-tolerant and security managing unit cooperation Logical processing unit and external equipment
What administrative unit had collectively constituted trusted computer system two multiplies two and takes two structures and Dual Module Hot Spare Architecture, and two, which multiply two, takes two structures
There are two communication channels for tool, and communication efficiency is higher, and Dual Module Hot Spare Architecture makes trusted computer system tool, and there are two identical
Computer, two take the computer under two modes can be by the master and slave switching of switch control unit two computers of control, host computer
Machine and the operation of data, the judgement of logic, the diagnosis of failure are both participated in from computer, last master computer exports fault diagnosis knot
Fruit, two-node cluster hot backup and two take the trusted computer system under two modes that two computers is not only leaned on to improve efficiency of fault diagnosis,
Maintenance and control to make failure much sooner, to considerably increase the safety of railway traffic, and because have two
Computing, so even if a computer damage, another computer can handle railway immediately as master computer
Failure improves the safety of system to improve the serious forgiveness that railway signal transmitting and order execute.
(2) faraday cup of the invention formed using lightning shielding net carries out lightning protection to indoor all devices are controlled
Electricity, antistatic protection, then recycle various lightning protection devices to protect power supply, network interface and video monitor, recycle
Lightning protection high-temperature resistant tube carries out lightning protection to grid line and power line again, to protect all control systems of railway signal system
System, signalling arrangement, signal transmission path, and rail and various lightning protection devices are connected to equipotential case eventually by thunder line is led
On, so that all lightning protection devices be made to keep equipotential, it ensure that rail is not smashed by thunder and lightning, also ensure all lightning protection devices
Equipotentiality, radiation spark is less, improves the stability and resistance to lightning stroke ability of lightning protection device.
(2) of the invention to devise fault knowledge library, so that fault diagnosis system is updated fault message and corresponding at any time
Best to solve malfunction approach information, the ability that fault knowledge library has self-teaching and is constantly progressive makes trusted computer system
The failure that can identify more railway signal systems utilizes the failure example collection and storage experience intelligent recognition failure in fault knowledge library
And related technical personnel are given to solve the optimal reference scheme of failure, accelerate the efficiency of handling failure.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is cable lightning arrester normal cross-section structural schematic diagram of the invention；
Fig. 3 is cable lightning arrester end the schematic diagram of the section structure of the invention；
Fig. 4 is computer control platform internal cell structure schematic diagram of the invention；
Fig. 5 is the flow chart of intelligent failure diagnosis method of the invention.
Figure label:
1- signal system；2- computer control platform；3- external signal equipment；4- external diagnosis source of early warning；5- is lightning-arrest
Network system；6- cable lightning arrester；7- equipment lightning arrester；8- control room lightning arrester；9- leads thunder line；
21- is fault-tolerant and security managing unit；22- external device management unit；23- Logical processing unit；
61- lightning protection high temperature resistant protection pipe；62- insulating barrier item；63- copper wire；64- arc conducting wire；
71- lightning protection for power supply；72- network signal lightning protection device；73- combines siganl thunder-proof device；
81- lightning shielding net；82- lightning rod；83- equipotential case.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figures 1 to 5, the present invention provides a kind of railway signal systems, including signal system 1 and lightning-arrest network system
System 5, signal system 1 include computer control platform 2 and external signal equipment 3, external diagnosis source of early warning 4, and external signal is set
Standby 3, external diagnosis source of early warning 4 is connected with computer control platform 2, and external signal equipment 3 includes to railway situation
Driving conditions the display equipment, signal transmission apparatus of monitoring device, the speed measuring equipment of railroad train, each train, can monitor train
With the properties of railway, to guarantee traffic safety of the train on railway.
The diagnostic data and diagnosis basis that diagnosis source of early warning 4 can be stored according to computer judge whether train or rail produce
Raw failure, if faulty, early warning can also be issued by diagnosing source of early warning 4, and Train Stopping and technical staff is reminded to solve event as early as possible
Barrier.Computer control platform 2 is then the core of signal system 1, and it is flat that all failures and information calculating require computer control
Platform 2 obtains whether generate to carry out, such as to the comparison and calculating of train speed signal, by rail information and normal information comparison
Failure, computer control platform 2 can also automatically control station or Train Stopping according to certain failures and emergency, tight to guarantee
Train safety under anxious failure makes the solution of failure more have timeliness, high efficiency.And lightning-arrest network system 5 can be greatly
Ground reduces direct lightning strike and inductive lightning and injures to the lightning stroke of railway signal system, to ensure that the safety of signal system information transmitting
Property and stability, improve the service life of railway signal system.
Fault-tolerant and security managing unit 21, external device management unit 22 and logic are equipped with inside computer control platform 2
Processing unit 23,23 3 fault-tolerant and security managing unit 21, external device management unit 22 and Logical processing unit units two
Incidence relation is all had between two.
Fault-tolerant and security managing unit 21 includes two FTSM, and one of FTSM is based on ARM framework and is realized using C voice
Its function, another FTSM are based on DPGA framework and realize its function using hardware description voice.Logical processing unit 23 includes four
A LPU, two of them LPU are located under x86 framework, and another two LPU is located under PowerPC framework, two under x86 framework LPU
It selects different operating system from two LPU under PowerPC framework and becomes language to realize its function.External device management list
Member 22 includes four PMU, and two of them PMU is located under x86 framework, and another two PMU is located under PowerPC framework, under x86 framework
Two PMU and two PMU under PowerPC framework select different operating system and become language to realize its function.
Between 23 3 fault-tolerant and security managing unit 21, external device management unit 22 and Logical processing unit units
Specific connection relationship is as follows:
It is in communication with each other between two FTSM by e signal wire, the FTSM under ARM framework passes through a signal wire and four LPU phases
It connects, the FTSM under FPGA architecture is connected by b signal wire with four PMU, under the LPU under x86 framework and x86 framework
PMU is connected by c signal line, and the LPU under PowerPC framework is connected with the PMU under PowerPC framework by d signal wire,
Four PMU are connected with the input terminal of external equipment and output end.
Fault-tolerant and security managing unit 21 can check to signal system in time and error correction, letter external signal equipment are first
The detection signal of railway is transmitted in fault-tolerant unit, to detect whether railway signal is abnormal, then makes certain processing letter
Number and processing decision, even signal processing produce mistake and fault, fault-tolerant unit also can temporarily allow to handle signal and pass through,
After processing signal is transmitted in security managing unit, administrative unit can weed out the processing information of mistake and decision, to improve
Accuracy of determination and high efficiency.
External device management unit 22, which not only has, outputs and inputs energy to the digital quantity of information, analog quantity, pulsed quantity
Power, also has wired and wireless communication capacity, and wireless communication ability effectively prevents information caused by due to signal wire damages and passes
The adverse consequences that railway and train fault caused by fracture are not found and handled in time is passed, and external equipment units 22 also have
Have for signal system circuit, orbits controlling circuit, the intelligent input of Train Stopping circuit and fan-out capability, to can guarantee electricity
The stable operation in road also enables train that can stop in time after signal system detection is out of order, to avoid train accident
Occur, significantly reduces the loss of railway failure.
Logical processing unit 23 can handle the logical relation between different kinds of railways signal message, diagnostic message and processing information
And control planning, make the judgement of railway signal that more there is principle and systematicness, to keep fault diagnosis more accurate.
Preferably, Logical processing unit 23 by two groups totally four LPU form, every two LPU constitute one two multiply two knots
Structure, fault-tolerant and security managing unit 21 cooperation Logical processing unit 23 creation one two multiply two and take two mechanism, and and external equipment
The cooperation of administrative unit 22 makes computer have the function of two-node cluster hot backup, and two, which multiply two, takes communication channel there are two two structures tools, communication
More efficient, Dual Module Hot Spare Architecture makes trusted computer system tool, and there are two identical computers.Two take under two modes
Computer be not present master and slave relationship, can by switch control unit control two computers master-slave swap, master computer and from
Computer both participates in the operation of data, the judgement of logic, the diagnosis of failure, and last master computer exports fault diagnosis result, double
Machine is hot standby and two take the trusted computer system under two modes that two computers is not only leaned on to improve efficiency of fault diagnosis, to make
The maintenance and control of failure much sooner, to considerably increase the safety of railway traffic, and because have two computers
Operation, so even if a computer damage, another computer can handle railway failure immediately as master computer, from
And the serious forgiveness that railway signal transmitting and order execute is improved, improve the safety of system.
Lightning-arrest network system 5 is mounted on 1 side of signal system, and network system 5 of taking shelter from the thunder includes cable lightning arrester 6, signal
Equipment lightning arrester 7 and control room lightning arrester 8, cable lightning arrester 6, signalling arrangement lightning arrester 7, control room lightning arrester
8 are connected by leading thunder line 9 between any two.
Signalling arrangement lightning arrester 7 includes the lightning protection for power supply 71 being mounted on signalling arrangement power supply, is mounted on Ethernet
Network signal lightning protection device 72 on network interface and the combination siganl thunder-proof device 73 being mounted in monitoring device, lightning protection for power supply
71, network signal lightning protection device 72 is connected by equipotential line between any two with combination siganl thunder-proof device 73.
Lightning protection for power supply 71 be mostly installed at power distribution room, power distribution cabinet, AC distribution panel, switch-box and other important equipments,
It is subject at the electric power incoming line of lightning stroke equipment, to protect equipment from the damage caused by the Lightning Over-voltage that power circuit invades
Evil, when not instantaneous excessive voltage passes through lightning protection device, passes its working principle is that having a biography thunder conducting wire inside lightning protection device
Thunder conducting wire shows as high impedance, almost without electric current inside conducting wire, when thunder and lightning is transmitted to inside lightning protection device, passes wink on thunder conducting wire
When voltage it is excessive, and the change in the instantaneous impedance of conducting wire be low impedance state, allow lightning current pass through, thus by lightning current by leading thunder line
9 are transmitted on equipotential case 83.
Lightning protection can be carried out to multiple types signal by combining siganl thunder-proof device 73, such as video, sound, data and electric signal
Combination signal, protect the stability of monitoring.Network signal lightning protection device 72 can make thunder and lightning to the signal transmission of signalling arrangement, number
Minimum is influenced according to calculating process, the risk that thunder and lightning passes through network signal broken by lightning signalling arrangement is also greatly reduced, mentions
High stable signal transmission of the signalling arrangement under thunder and lightning environment, to ensure that the instantaneity and failure of railway signal transmitting
The timeliness of diagnosis substantially increases the safety of railway signal system and railway traffic.
Control room lightning arrester 8 includes the lightning shielding net 81 being connected with indoor non-signal line conductor, lightning shielding net
81 top is connected with lightning rod 82, and lightning shielding net 81 is connected with equipotential case 83 by leading thunder line 9.Lightning shielding net 81 is
The conductive metal mesh of one covering railway signal control room all devices.
Lightning shielding net 81 forms a faraday cup, and when thunder and lightning is split above control room, thunder and lightning is first by lightning rod 82
Attract, be then transmitted to underground from faraday cup leads thunder line 9, is eventually transferred into equipotential case 83, lightning current is made to be transmitted to ground
Under, some lightning current is directly delivered on faraday cup, and the cage body of faraday cup is an equipotential volume, internal potential
Difference is zero, and electric field is also zero, therefore regardless of the voltage of external lightning stream is much, internal unit is all almost by the shadow less than thunder and lightning
Ring, electric current only finally flows into underground in the surface flow of faraday cup, greatly protect items of equipment inside control room and
Computer system.And faraday cup also has the function of that electrostatic screen, faraday cup and indoor various non-electrical signals, network are believed
Number conductor be in contact, such staff will not be by electrostatic or leakage current when contact arrangement shell or indoor conductor
It strikes, to ensure that the safety of staff and equipment significantly.
Cable lightning arrester 6 includes the lightning protection high temperature resistant protection pipe 61 being set on the outside of cable and electric wire, lightning protection high temperature resistant
Several insulating barrier items 62 are installed in protection pipe 61, are equipped on the outside of lightning protection high temperature resistant protection pipe 61 by wire casing several parallel
Copper wire 63, be connected between adjacent two copper wire 63 by several arc conducting wires 64, copper wire 63 passes through equipotential line and column
Vehicle guide rail leads thunder line 9 and is connected.
Preferably, insulating barrier item 62 will transmit the electric wire or network signal of electric current or network signal of different nature
Line separates, even if to make electric wire aging or insulated hull burn because of thunder and lightning high temperature, electric wire or signal wire will not be because exhausted
Edge skin lesion ruins and short circuit phenomenon occurs, to greatly ensure that the stable operation of equipment and stablizing for signal are transmitted.High temperature resistant
Protection pipe 61 is made by ceramic fibre material, has the performances such as high temperature resistant, insulation, heat-insulated, and such thunder and lightning is split in lightning protection high temperature resistant
When on pipe 61, lightning current is first transmitted on copper wire 63, and every copper wire 63 is because the connection of arc conducting wire 64 is so as to form equal electricity
Position net, to make thunder and lightning be not transferred to electric wire or signal wire inside lightning protection high temperature resistant protection pipe 61, and because equipotential
Relationship, thunder and lightning will not generate electric spark on signal wire, to keep the transmission of electric power and signal more stable, final lightning current from
It leads thunder line 9 and is transmitted to equipotential case 83.Lightning protection high temperature resistant protection pipe 61 regards power line and patch may be selected in the routing path of grid line
Wall installation or buried installation, it is thus also avoided that electric wire, grid line are because exposing to the sun and rain or the aging phenomenon corroded suddenly, to greatly prolong
The service life of power line and grid line is grown.
Equipotential line can be used copper wires, and conduction lightning current speed is faster, and non-aging or burn.
Preferably, the faraday cup formed using lightning shielding net 81 carries out lightning protection to indoor all devices are controlled
Electricity, antistatic protection, then recycle various lightning protection devices to protect power supply, network interface and video monitor, recycle
Lightning protection high-temperature resistant tube 61 carries out lightning protection to grid line and power line again, to protect all controls of railway signal system
System, signalling arrangement, signal transmission path, and rail and various lightning protection devices are connected to equipotential eventually by thunder line 9 is led
It on case 83, so that all lightning protection devices be made to keep equipotential, ensure that rail is not smashed by thunder and lightning, also ensure all lightning protection dresses
The equipotentiality set, radiation spark is less, improves the stability and resistance to lightning stroke ability of lightning protection device.
In addition, the present invention also provides a kind of intelligent failure diagnosis methods of railway signal system, including sets up failure and examine
Disconnected system, fault diagnosis system includes station equipment working condition detection system, real-time monitoring system and failure expert system, is
The process of system troubleshooting includes the following steps:
S100, station microcomputer check the various sensors, monitoring machine, interface equipment, in real time inspection of monitored state detection system
The working condition of measuring car station signalling arrangement, and the working machine of microcomputer detecting system records, the status information of signalling arrangement, meets
The phenomenon of the failure information of failure symptom, railway signals equipment will appear such as broken string, swinging cross, short circuit, power supply in use and connect
Failures, the failures such as ground, signal are chaotic, signal transmission efficiency is low suddenly can be divided into internal system component defects and exterior ring
Two class of physical cause and human factor of border condition.
S200, fault message are transferred to failure expert system by information interface and Ethernet approach, and system passes through knowledge
After processing and analysis, the failure cause prompt information of signalling arrangement and railway signal is obtained；
S300, failure expert system provide the prompt information of maintenance proposed projects according to fault knowledge library；
S400, railway technology personnel, in conjunction with the viewpoint and opinion of expert, formulate railway dimension by further testing and judging
Repair scheme.
Failure expert system, which has, judges failure according to the abnormal signal information for receiving the transmission of signal detection supervision equipment
The function of reason, if failure expert system does not judge that failure cause and true fault reason are variant, failure expert system
Collect this failure and enter fault knowledge library and save, each failure expert system detect new fault type also can will it is new therefore
Barrier is saved into fault knowledge library.
The establishment step in fault knowledge library is as follows:
The normal condition and various abnormalities of S201, failure expert system acquisition signalling arrangement, generate status information number
According to library, example set is formed, example set includes fault category, failure cause and the diagnosis efficiency of railway information；
S202, failure decision tree is generated using Fault Tree Analysis；
S203, by decision tree decision and maintenance set of suggestions get up, formed solution collection；
S204, the experience and decision also typing solution for obtaining expert by reasoning and the practical maintenance of railway technology personnel
Scheme collection, solution suggestion and reference as railway signal fault.
Fault knowledge library is devised, fault diagnosis system is enable to update fault message and corresponding best solution failure at any time
Scheme information, the ability that fault knowledge library has self-teaching and is constantly progressive, enables fault diagnosis system to identify more iron
The failure of road signal system, intelligent recognition failure are simultaneously given related technical personnel to solve the optimal reference scheme of failure, are accelerated
The efficiency of handling failure.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
Claims (10)
1. a kind of railway signal system, it is characterised in that: including signal system (1) and lightning-arrest network system (5), the signal system
System (1) includes computer control platform (2) and external signal equipment (3), external diagnosis source of early warning (4), the external signal
Equipment (3), external diagnosis source of early warning (4) are connected with computer control platform (2)；
Be equipped with inside the computer control platform (2) fault-tolerant and security managing unit (21), external device management unit (22),
With Logical processing unit (23), fault-tolerant and security managing unit (21), external device management unit (22) and Logical processing unit
(23) three units all have incidence relation between any two；
The lightning-arrest network system (5) is mounted on signal system (1) side, and the lightning-arrest network system (5) includes that cable is lightning-arrest
Device (6), signalling arrangement lightning arrester (7) and control room lightning arrester (8), the lightning-arrest dress of cable lightning arrester (6), signalling arrangement
(7), control room lightning arrester (8) is set to be connected by leading thunder line (9) between any two.
2. a kind of railway signal system according to claim 1, it is characterised in that: the Logical processing unit (23) includes
Four LPU, two of them LPU are located under x86 framework, and another two LPU is located under PowerPC framework, two under x86 framework
LPU and two LPU under PowerPC framework select different operating system and become language to realize its function.
3. a kind of railway signal system according to claim 1, it is characterised in that: the external device management unit (22)
Including four PMU, two of them PMU is located under x86 framework, and another two PMU is located under PowerPC framework, two under x86 framework
A PMU and two PMU under PowerPC framework select different operating system and become language to realize its function.
4. a kind of railway signal system according to claim 1, it is characterised in that: described fault-tolerant and security managing unit
It (21) include two FTSM, one of FTSM is based on ARM framework and realizes its function using C voice, another FTSM is based on
DPGA framework realizes its function using hardware description voice.
5. a kind of railway signal system according to claim 1, it is characterised in that: the signalling arrangement lightning arrester (7)
Including the lightning protection for power supply (71) being mounted on signalling arrangement power supply, the network signal lightning protection being mounted on ethernet network interface
Device (72) and the combination siganl thunder-proof device (73) being mounted in monitoring device, lightning protection for power supply (71), network signal lightning protection device
(72) it is connected between any two by equipotential line with combination siganl thunder-proof device (73).
6. a kind of railway signal system according to claim 1, it is characterised in that: control room lightning arrester (8) packet
The lightning shielding net (81) being connected with indoor non-signal line conductor is included, the top of lightning shielding net (81) is connected with lightning rod
(82), lightning shielding net (81) is connected with equipotential case (83) by leading thunder line (9).
7. a kind of railway signal system according to claim 1, it is characterised in that: the cable lightning arrester (6) includes
The lightning protection high temperature resistant protection pipe (61) being set on the outside of cable and electric wire, be equipped in lightning protection high temperature resistant protection pipe (61) it is several absolutely
Edge separator strip (62) is equipped with several parallel copper wire (63) by wire casing on the outside of lightning protection high temperature resistant protection pipe (61), and adjacent two
Be connected between root copper wire (63) by several arc conducting wires (64), copper wire (63) by equipotential line and train guide rail, lead
Thunder line (9) is connected.
8. a kind of intelligent failure diagnosis method of railway signal system, it is characterised in that: including setting up fault diagnosis system, failure
Diagnostic system includes station equipment working condition detection system, real-time monitoring system and failure expert system, system diagnostics failure
Process include the following steps:
S100, station microcomputer check various sensors, monitoring machine, interface equipment, the real-time detection vehicle of monitored state detection system
It stands the working condition of signalling arrangement, and the status information of the working machine record of microcomputer detecting system, signalling arrangement, meets failure
The phenomenon of the failure information of sign；
S200, fault message are transferred to failure expert system by information interface and Ethernet approach, and system passes through knowledge processing
After analysis, the failure cause prompt information of signalling arrangement and railway signal is obtained；
S300, failure expert system provide the prompt information of maintenance proposed projects according to fault knowledge library；
S400, railway technology personnel, in conjunction with the viewpoint and opinion of expert, formulate railway maintenance side by further testing and judging
Case.
9. a kind of intelligent failure diagnosis method of railway signal system according to claim 8, it is characterised in that: the event
Barrier expert system has the function that failure cause is judged according to the abnormal signal information for receiving the transmission of signal detection supervision equipment,
If failure expert system does not judge that failure cause and true fault reason are variant, failure expert system collects this failure
Enter fault knowledge library to save, each failure expert system detects that new failure can be also saved into failure by new fault type
Knowledge base.
10. a kind of intelligent failure diagnosis method of railway signal system according to claim 9, it is characterised in that: failure
The establishment step of knowledge base is as follows:
The normal condition and various abnormalities of S201, failure expert system acquisition signalling arrangement, generate state information database,
Example set is formed, example set includes fault category, failure cause and the diagnosis efficiency of railway information；
S202, failure decision tree is generated using Fault Tree Analysis；
S203, by decision tree decision and maintenance set of suggestions get up, formed solution collection；
S204, the experience that expert is obtained by reasoning and the practical maintenance of railway technology personnel and decision also typing solution
Collection, solution suggestion and reference as railway signal fault.
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