CN108001488A - A kind of LEU circuit switching methods, device and storage medium - Google Patents
A kind of LEU circuit switching methods, device and storage medium Download PDFInfo
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- CN108001488A CN108001488A CN201711107999.XA CN201711107999A CN108001488A CN 108001488 A CN108001488 A CN 108001488A CN 201711107999 A CN201711107999 A CN 201711107999A CN 108001488 A CN108001488 A CN 108001488A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
- B61L27/20—Trackside control of safe travel of vehicle or vehicle train, e.g. braking curve calculation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L1/00—Devices along the route controlled by interaction with the vehicle or vehicle train, e.g. pedals
- B61L1/18—Railway track circuits
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L1/00—Devices along the route controlled by interaction with the vehicle or vehicle train, e.g. pedals
- B61L1/20—Safety arrangements for preventing or indicating malfunction of the device, e.g. by leakage current, by lightning
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Abstract
The present invention provides a kind of LEU circuit switching methods, device and storage medium, and when method includes electrifying startup, the output terminal of the first LEU circuits is connected with four active balises；When the first LEU circuits, one of them failure of the 2nd LEU circuits, the output terminal of another normal LEU circuit is connected with four active balises；When the first LEU circuits, the 2nd LEU circuits break down or keep normal, keep the first LEU circuits, the existing connected state of the 2nd LEU circuits constant.The LEU circuit switching methods and device of the embodiment of the present invention, avoid that frequent LEU switchings occur in the case where LEU1 passages are unstable, avoid the transponder output acquiescence message during switching, ensure train normal operation.
Description
Technical field
The present invention relates to high ferro signal control technology field, more particularly to a kind of method and apparatus of LEU circuits switching.
Background technology
With the continuous development of Chinese Railway, to meet high speed, highdensity transport needs, Train operation has been formulated
Control system (China Train Control System, hereinafter referred to as CTCS).CTCS is according to functional requirement and device configuration
Be divided into five application levels, i.e. CTCS0 grades~CTCS4 grades.
On CTCS2, CTCS3 Line for Passenger Transportation, in order to ensure the reliability of system, the trackside electronic unit on the main track of station
LEU needs redundant configuration, when a LEU failure, should be switched on the LEU of another normal work.
As shown in Figure 1：
1) when train control center detects that LEU1, LEU2 are normal, the output of the preceding two-way of LEU1 respectively with T1, T2 transponder
Connection, the rear two-way output of LEU2 are connected with T3, T4 transponder respectively；
2) when train control center detects LEU1 failures and LEU2 normal, control switching circuit divides the four tunnels output of LEU2
Do not connected with transponder tango 1, T2, T3, T4 transponder；
3) when train control center detects LEU2 failures and LEU1 normal, control switching circuit divides the four tunnels output of LEU1
Do not connected with transponder tango 1, T2, T3, T4 transponder；
4) when train control center detects the equal failure of LEU1, LEU2, the preceding two-way output of LEU2 respectively with T1, T2 transponder
Connection, the rear two-way output of LEU1 are connected with T3, T4 transponder respectively.
The content of the invention
The present invention provides a kind of LEU circuit switching methods, device and storage medium, to solve existing LEU circuits switching
The problem of inefficient.
The present invention provides a kind of LEU circuit switching methods, including：
During electrifying startup, the output terminal of the first LEU circuits is connected with four active balises；
When the first LEU circuits, one of them failure of the 2nd LEU circuits, by another normal LEU circuit
Output terminal connected with four active balises；
When the first LEU circuits, the 2nd LEU circuits break down or keep normal, the first LEU is kept
Circuit, the existing connected state of the 2nd LEU circuits are constant.
The present invention provides a kind of LEU circuit switching devices, including：
State detecting module, for detecting the circuit state of the first LEU circuits, the 2nd LEU circuits；
Circuit communication module, for the circuit state detected according to the state detecting module, complete the first LEU circuits,
The connection of 2nd LEU circuits and active balise：
During electrifying startup, the output terminal of the first LEU circuits is connected with four active balises；
When the first LEU circuits, one of them failure of the 2nd LEU circuits, by another normal LEU circuit
Output terminal connected with four active balises；
When the first LEU circuits, the 2nd LEU circuits break down or keep normal, the first LEU is kept
Circuit, the existing connected state of the 2nd LEU circuits are constant.
The LEU circuit switching methods and device of the embodiment of the present invention, are cut at the same time by a relay or a group relay
The four tunnels output of LEU is changed, when only controlling the LEU failures of current active balise, passage switching can just occur.Avoid in LEU1
Frequent LEU switchings occur in the case that passage is unstable, avoids the transponder output acquiescence message during switching, protects
Demonstrate,prove train normal operation.
The present invention provides a kind of LEU circuit switching devices, including memory, processor and is stored on the memory simultaneously
The computer program that can be run on the processor, the computer program are realized above-mentioned when being performed by the processor
Step in LEU circuit switching methods.
The present invention provides a kind of computer-readable recording medium, is stored thereon with computer program, the computer program
The step in above-mentioned LEU circuit switching methods is realized when being executed by processor.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
Obtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages can be by the explanations write
Specifically noted structure is realized and obtained in book, claims and attached drawing.
Below by drawings and examples, technical scheme is described in further detail.
Brief description of the drawings
Attached drawing is used for providing a further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
Apply example to be used to explain the present invention together, be not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is a kind of schematic diagram of LEU circuits in the embodiment of the present invention；
Fig. 2 is the schematic diagram of LEU circuit drives interfaces in the embodiment of the present invention；
Fig. 3 is the schematic diagram of LEU circuit acquisition interfaces in the embodiment of the present invention；
Fig. 4 is the circuit diagram of transponder 1 and LEU in the embodiment of the present invention；
Fig. 5 is the circuit diagram of transponder 2 and LEU in the embodiment of the present invention；
Fig. 6 is the circuit diagram of transponder 3 and LEU in the embodiment of the present invention；
Fig. 7 is the circuit diagram of transponder 4 and LEU in the embodiment of the present invention；
Fig. 8 is the flow chart of LEU circuit switching methods in the embodiment of the present invention one；
Fig. 9 is the flow chart of LEU circuit switching methods in the embodiment of the present invention two；
Figure 10 is the structure diagram of the LEU circuit switching devices of the embodiment of the present invention.
Embodiment
The preferred embodiment of the present invention is illustrated below in conjunction with attached drawing, it will be appreciated that described herein preferred real
Apply example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
Fig. 1 is the schematic diagram of LEU circuits of the present invention.As shown in Figure 1, the train control center control redundancy switching actuating of relay,
It is switched to LEU2 control outputs；Switch back immediately to the output of LEU1 and LEU2 co- controllings again after LEU1 routing restorations；Then exist
Frequent LEU switchings occur in the case that LEU1 passages are unstable, cause the transponder output acquiescence report during switching
Text, influences train normal operation.
As illustrated in figures 1 and 8, the embodiment one of LEU circuit switching methods of the present invention includes：
Step 102, during electrifying startup, the output terminal of the first LEU circuits is connected with four active balises；
When powering on, the output terminal of LEU1 is connected with 4 active balises T1, T2, T3 and T4, i.e. redundancy switching relay
QHJ1, QHJ2, QHJ3, QHJ4 are in the driving condition picked up.
Step 104, it is when the first LEU circuits, one of them failure of the 2nd LEU circuits, another is normal
The output terminals of LEU circuits connected with four active balises；
When LEU1 and LEU2 is one of to break down, by another normal output terminal and 4 active balise T1,
T2, T3 are connected with T4.
Step 106, when the first LEU circuits, the 2nd LEU circuits break down or keep normal, institute is kept
It is constant to state the first LEU circuits, the existing connected state of the 2nd LEU circuits.
When LEU1 and LEU2 break down or keep normal, LEU1 and LEU2 keep existing connected state constant.
The LEU circuit switching methods of the embodiment of the present invention, switch LEU's at the same time by a relay or a group relay
Four tunnels export, and when only controlling the LEU failures of current active balise, passage switching can just occur.Avoid in LEU1 passages not
Frequent LEU switchings occur in the case of stabilization, avoids the transponder output acquiescence message during switching, ensures train
Normal operation.
As shown in Fig. 1-Fig. 7, Fig. 9, the embodiment two of LEU circuit switching methods of the present invention includes：
Step 202, electrifying startup N number of tolerance cycle, the driving condition of acquiescence LEU redundancy switching relays is to pick up,
Tolerate that the first LEU circuit paths and the 2nd LEU circuit paths are under normal circumstances in the cycle, the tolerance end cycle.
In the present embodiment, LEU1 is set as normal LEU circuit paths, LEU1 is set as redundancy LEU circuit paths.
During electrifying startup, N number of tolerance cycle is tolerated, in the case of LEU1 and LEU2 passages are normal within the tolerance cycle,
Redundancy switching relay QHJ1 (QHJ1-3, QHJ1-4, QHJ1-5, QHJ1-6), QHJ2 (QHJ2-1, QHJ2-2, QHJ2-3,
QHJ2-4)、QHJ3(QHJ3-1、QHJ3-2、QHJ3-3、QHJ3-4)、QHJ4(QHJ2-5、QHJ3-5、QHJ2-6、QHJ3-6、
QHJ3-7, QHJ2-7) in the driving condition picked up, LEU1 and LEU2 is kept under normal circumstances within the tolerance cycle, described
Tolerate end cycle.At this time, LEU1 controls the output of four road active balise T1, T2, T3 and T4.
Step 204, any passage is normal in the binary channels of the first LEU, and the binary channels of the 2nd LEU circuits
In the case of breaking down, the driving condition of LEU redundancies switching relay is updated to pick up.
In the case that any passage is normal in the binary channels of LEU1, and the binary channels of LEU2 breaks down, by redundancy
Switch relay QHJ1 (QHJ1-3, QHJ1-4, QHJ1-5, QHJ1-6), QHJ2 (QHJ2-1, QHJ2-2, QHJ2-3, QHJ2-
4)、QHJ3(QHJ3-1、QHJ3-2、QHJ3-3、QHJ3-4)、QHJ4(QHJ2-5、QHJ3-5、QHJ2-6、QHJ3-6、QHJ3-7、
QHJ2-7 driving condition) is updated to pick up.In this case, four road active balise T1, T2, T3 and T4's of LEU1 controls is defeated
Go out.
Step 206, break down in the binary channels of the first LEU, and it is any logical in the binary channels of the 2nd LEU
In the case of road is normal, the driving condition of LEU redundancies switching relay is updated to fall.
Break down in the binary channels of LEU1, and in the case of any passage is normal in the binary channels of LEU2, will be superfluous
Cotangent changes relay QHJ1 (QHJ1-3, QHJ1-4, QHJ1-5, QHJ1-6), QHJ2 (QHJ2-1, QHJ2-2, QHJ2-3, QHJ2-
4)、QHJ3(QHJ3-1、QHJ3-2、QHJ3-3、QHJ3-4)、QHJ4(QHJ2-5、QHJ3-5、QHJ2-6、QHJ3-6、QHJ3-7、
QHJ2-7 driving condition) is updated to fall.In this case, four road active balise T1, T2, T3 and T4's of LEU2 controls is defeated
Go out.
Step 208, when the first LEU circuits, the 2nd LEU circuits break down or keep normal, the LEU
Redundancy switching relay keeps the driving condition in the LEU redundancies switching relay last cycle constant.
In addition to above-mentioned steps 202, step 204, step 206, holding redundancy switching relay QHJ1 (QHJ1-3,
QHJ1-4、QHJ1-5、QHJ1-6)、QHJ2(QHJ2-1、QHJ2-2、QHJ2-3、QHJ2-4)、QHJ3(QHJ3-1、QHJ3-2、
QHJ3-3, QHJ3-4), QHJ4 (QHJ2-5, QHJ3-5, QHJ2-6, QHJ3-6, QHJ3-7, QHJ2-7) the last cycle drive
Dynamic state is constant.
In the present embodiment, after the binary channels of LEU2 is interrupted, electrifying startup after reconnecting successfully, tolerates N number of tolerance week
After phase, in the case of the binary channels of LEU2 is normal, acquiescence redundancy switching relay QHJ1 (QHJ1-3, QHJ1-4, QHJ1-5,
QHJ1-6)、QHJ2(QHJ2-1、QHJ2-2、QHJ2-3、QHJ2-4)、QHJ3(QHJ3-1、QHJ3-2、QHJ3-3、QHJ3-4)、
QHJ4 (QHJ2-5, QHJ3-5, QHJ2-6, QHJ3-6, QHJ3-7, QHJ2-7) is picked up, i.e. LEU1 controls four road active balises
The output of T1, T2, T3 and T4.
The LEU circuit switching methods of the embodiment of the present invention, switch LEU's at the same time by a relay or a group relay
Four tunnels export, and when only controlling the LEU failures of current active balise, passage switching can just occur.Avoid in LEU1 passages not
Frequent LEU switchings occur in the case of stabilization, avoids the transponder output acquiescence message during switching, ensures train
Normal operation.
The embodiment of the present invention further includes a kind of LEU circuit switching devices, including：
State detecting module, for detecting the circuit state of the first LEU circuits, the 2nd LEU circuits；
Circuit communication module, for the circuit state detected according to the state detecting module, complete the first LEU circuits,
The connection of 2nd LEU circuits and active balise：
During electrifying startup, the output terminal of the first LEU circuits is connected with four active balises；
When the first LEU circuits, one of them failure of the 2nd LEU circuits, by another normal LEU circuit
Output terminal connected with four active balises；
When the first LEU circuits, the 2nd LEU circuits break down or keep normal, the first LEU is kept
Circuit, the existing connected state of the 2nd LEU circuits are constant.
Wherein, the circuit communication module includes LEU redundancies switching relay, specifically for electrifying startup N number of tolerance week
Phase, gives tacit consent to the driving condition of itself to pick up.
Wherein, the circuit communication module includes LEU redundancies switching relay, is specifically used for：
Any passage is normal in the binary channels of the first LEU, and event occurs in the binary channels of the 2nd LEU circuits
In the case of barrier, the driving condition of itself is updated to pick up；
Break down in the binary channels of the first LEU, and any passage is normal in the binary channels of the 2nd LEU
In the case of, the driving condition of itself is updated to fall.
Wherein, the circuit communication module includes LEU redundancies switching relay, is specifically used for：
When the first LEU circuits, the 2nd LEU circuits break down or keep normal, the LEU redundancies are kept
The driving condition for switching the relay last cycle is constant.
The LEU circuit switching devices of the embodiment of the present invention, switch LEU's at the same time by a relay or a group relay
Four tunnels export, and when only controlling the LEU failures of current active balise, passage switching can just occur.Avoid in LEU1 passages not
Frequent LEU switchings occur in the case of stabilization, avoids the transponder output acquiescence message during switching, ensures train
Normal operation.
As shown in Figure 10, the embodiment of the present invention further includes a kind of LEU circuit switching devices, described device include bus 51,
Processor 52, transceiver 53, bus interface 54, memory 55 and user interface 56.
In embodiments of the present invention, described device further includes：It is stored on memory 55 and can runs on the processor 52
Computer program, computer program realizes following steps when being performed by processor 52：During electrifying startup, the first LEU circuits
Output terminal is connected with four active balises；When the first LEU circuits, the one of failure of the 2nd LEU circuits
When, the output terminal of another normal LEU circuit is connected with four active balises；When the first LEU circuits,
When two LEU circuits break down or keep normal, the first LEU circuits, the existing connected state of the 2nd LEU circuits are kept
State is constant.
Optionally, following steps can be implemented when computer program is performed by processor 52：Electrifying startup N number of tolerance week
Phase, the driving condition of acquiescence LEU redundancy switching relays is picks up, the first LEU circuit paths within the tolerance cycle
With the 2nd LEU circuit paths under normal circumstances, the tolerance end cycle.
Optionally, following steps can be implemented when computer program is performed by processor 52：In the double of the first LEU
In the case that any passage is normal in passage, and the binary channels of the 2nd LEU circuits breaks down, by the LEU redundancies
The driving condition of switching relay is updated to pick up；Break down in the binary channels of the first LEU, and the 2nd LEU
Binary channels in any passage it is normal in the case of, by the LEU redundancies switching relay driving condition be updated to fall.
Optionally, following steps can be implemented when computer program is performed by processor 52：When the first LEU electricity
When road, the 2nd LEU circuits break down or keep normal, the LEU redundancies switching relay keeps the LEU redundancies to cut
The driving condition for changing the relay last cycle is constant.
Transceiver 53, for data to be received and sent under the control of processor 52.
In Figure 5, bus architecture (being represented with bus 51), bus 51 can include any number of interconnection bus and
Bridge, the memory that bus 51 represents the one or more processors including being represented by general processor 52 and memory 55 it is each
Kind circuit links together.Bus 51 can also be by the various of such as ancillary equipment, voltage-stablizer and management circuit or the like
Other circuits link together, these are all it is known in the art, therefore, no longer it is described further herein.Always
Line interface 54 provides interface between bus 51 and transceiver 53.Transceiver 53 can be an element or multiple members
Part, such as multiple receivers and transmitter, there is provided for the unit to communicate over a transmission medium with various other devices.Such as：
Transceiver 53 receives external data from other equipment.Transceiver 53 is used for the data sending after processor 52 is handled and is set to other
It is standby.Depending on the property of computing system, user interface 56 can also be provided, for example, keypad, display, loudspeaker, microphone,
Control stick.
Processor 52 is responsible for bus 51 and common processing, and the general-purpose operating system is run as described in foregoing.And store
Device 55 can be used to store the used data when performing operation of processor 52.
Optionally, processor 52 can be CPU, ASIC, FPGA or CPLD.
It is appreciated that the memory 55 in the embodiment of the present invention can be volatile memory or nonvolatile memory,
Or it may include both volatile and non-volatile memories.Wherein, nonvolatile memory can be read-only storage (Read-
OnlyMemory, ROM), programmable read only memory (Programmable ROM, PROM), the read-only storage of erasable programmable
Device (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or
Flash memory.Volatile memory can be random access memory (RandomAccess Memory, RAM), it is used as exterior high speed
Caching.By exemplary but be not restricted explanation, the RAM of many forms can use, such as static RAM
(Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), Synchronous Dynamic Random Access Memory
(Synchronous DRAM, SDRAM), double data speed synchronous dynamic RAM (Double Data Rate
SDRAM, DDRSDRAM), enhanced Synchronous Dynamic Random Access Memory (Enhanced SDRAM, ESDRAM), synchronized links
Dynamic random access memory (Synchlink DRAM, SLDRAM) and direct rambus random access memory (Direct
Rambus RAM, DRRAM).The memory 55 of system and method described herein be intended to including but not limited to these and it is any its
It is adapted to the memory of type.
In some embodiments, memory 55 stores following element, executable modules or data structures, or
Their subset, or their superset：Operating system 551 and application program 552.
Wherein, operating system 551, comprising various system programs, such as ccf layer, core library layer, driving layer etc., for reality
The hardware based task of existing various basic businesses and processing.Application program 552, broadcasts comprising various application programs, such as media
Device (MediaPlayer), browser (Browser) etc. are put, is used for realization various applied business.Realize present invention method
Program may be embodied in application program 552.
In addition, the embodiment of the present invention additionally provides a kind of computer-readable recording medium, computer program is stored thereon with,
The computer program realizes that the said goods recommend each process of embodiment of the method when being executed by processor, and can reach identical
Technique effect, to avoid repeating, which is not described herein again.
Specifically, computer program can realize following steps when being executed by processor：During electrifying startup, the first LEU circuits
Output terminal connected with four active balises；When the first LEU circuits, the one of appearance event of the 2nd LEU circuits
During barrier, the output terminal of another normal LEU circuit is connected with four active balises；When the first LEU circuits,
When 2nd LEU circuits break down or keep normal, the existing connection of the first the LEU circuits, the 2nd LEU circuits is kept
State is constant.
Optionally, following steps can be implemented when computer program is executed by processor：Electrifying startup N number of tolerance week
Phase, the driving condition of acquiescence LEU redundancy switching relays is picks up, the first LEU circuit paths within the tolerance cycle
With the 2nd LEU circuit paths under normal circumstances, the tolerance end cycle.
Optionally, following steps can be implemented when computer program is executed by processor：In the bilateral of the first LEU
In the case that any passage is normal in road, and the binary channels of the 2nd LEU circuits breaks down, the LEU redundancies are cut
The driving condition for changing relay is updated to pick up；Break down in the binary channels of the first LEU, and the 2nd LEU
In the case of any passage is normal in binary channels, the driving condition of LEU redundancies switching relay is updated to fall.
Optionally, following steps can be implemented when computer program is executed by processor：When the first LEU circuits,
When 2nd LEU circuits break down or keep normal, the LEU redundancies switching relay keeps the LEU redundancies switching
The driving condition in relay last cycle is constant.
Computer-readable medium includes permanent and non-permanent, removable and non-removable media, can be by any side
Method or technology realize that information stores.Information can be computer-readable instruction, data structure, the module of program or other numbers
According to.The example of the storage medium of computer includes, but are not limited to phase transition internal memory (PRAM), static RAM
(SRAM), dynamic random access memory (DRAM), other kinds of random access memory (RAM), read-only storage
(ROM), electrically erasable programmable read-only memory (EEPROM), fast flash memory bank or other memory techniques, read-only optical disc are read-only
Memory (CD-ROM), digital versatile disc (DVD) or other optical storages, magnetic cassette tape, tape magnetic rigid disk storage or
Other magnetic storage apparatus or any other non-transmission medium, the information that can be accessed by a computing device available for storage.According to
Herein defines, and computer-readable medium does not include temporary computer readable media (transitorymedia), such as number of modulation
It is believed that number and carrier wave.
It should be noted that herein, term " comprising ", "comprising" or its any other variant are intended to non-row
His property includes, so that process, method, article or device including a series of elements not only include those key elements, and
And other elements that are not explicitly listed are further included, or further include as this process, method, article or device institute inherently
Key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that including this
Also there are other identical element in the process of key element, method, article or device.
The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on such understanding, technical scheme substantially in other words does the prior art
Going out the part of contribution can be embodied in the form of software product, which is stored in a storage medium
In (such as ROM/RAM, magnetic disc, CD), including some instructions are used so that a station terminal equipment (can be mobile phone, computer, takes
Be engaged in device, air conditioner, or network equipment etc.) perform method described in each embodiment of the present invention.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of LEU circuit switching methods, including the first LEU circuits, the 2nd LEU circuits and four active balises, its feature
It is, including：
During electrifying startup, the output terminal of the first LEU circuits is connected with four active balises；
When the first LEU circuits, one of them failure of the 2nd LEU circuits, by the defeated of another normal LEU circuit
Outlet is connected with four active balises；
When the first LEU circuits, the 2nd LEU circuits break down or keep normal, the first LEU electricity is kept
Road, the existing connected state of the 2nd LEU circuits are constant.
2. according to the method described in claim 1, it is characterized in that, during the electrifying startup, the output terminal of the first LEU circuits with
The step of four active balise connections, specifically include：
In electrifying startup N number of tolerance cycle, the driving condition of acquiescence LEU redundancy switching relays is picks up, in the tolerance cycle
The interior first LEU circuit paths and the 2nd LEU circuit paths under normal circumstances, the tolerance end cycle.
3. according to the method described in claim 1, it is characterized in that, when the first LEU circuits, the 2nd LEU circuits wherein one
During a failure, the step of the output terminal of another normal LEU circuit is connected with four active balises, specifically
Including：
Any passage is normal in the binary channels of the first LEU, and the binary channels of the 2nd LEU circuits breaks down
In the case of, the driving condition of LEU redundancies switching relay is updated to pick up；
Break down in the binary channels of the first LEU, and any normal situation of passage in the binary channels of the 2nd LEU
Under, the driving condition of LEU redundancies switching relay is updated to fall.
4. according to the method described in claim 1, it is characterized in that, when the first LEU circuits, the 2nd LEU circuits occur
Failure or when keeping normal, keeps the constant step of the first LEU circuits, the existing connected state of the 2nd LEU circuits, tool
Body includes：
When the first LEU circuits, the 2nd LEU circuits break down or keep normal, the LEU redundancies switch relay
Device keeps the driving condition in the LEU redundancies switching relay last cycle constant.
A kind of 5. LEU circuit switching devices, it is characterised in that including：
State detecting module, for detecting the circuit state of the first LEU circuits, the 2nd LEU circuits；
Circuit communication module, for the circuit state detected according to the state detecting module, completes the first LEU circuits, second
The connection of LEU circuits and active balise：
During electrifying startup, the output terminal of the first LEU circuits is connected with four active balises；
When the first LEU circuits, one of them failure of the 2nd LEU circuits, by the defeated of another normal LEU circuit
Outlet is connected with four active balises；
When the first LEU circuits, the 2nd LEU circuits break down or keep normal, the first LEU electricity is kept
Road, the existing connected state of the 2nd LEU circuits are constant.
6. device according to claim 5, it is characterised in that the circuit communication module includes LEU redundancies switching relay
Device, specifically for electrifying startup N number of tolerance cycle, gives tacit consent to the driving condition of itself to pick up.
7. device according to claim 5, it is characterised in that the circuit communication module includes LEU redundancies switching relay
Device, is specifically used for：
Any passage is normal in the binary channels of the first LEU, and the binary channels of the 2nd LEU circuits breaks down
In the case of, the driving condition of itself is updated to pick up；
Break down in the binary channels of the first LEU, and any normal situation of passage in the binary channels of the 2nd LEU
Under, the driving condition of itself is updated to fall.
8. device according to claim 5, it is characterised in that the circuit communication module includes LEU redundancies switching relay
Device, is specifically used for：
When the first LEU circuits, the 2nd LEU circuits break down or keep normal, the LEU redundancies are kept to switch
The driving condition in relay last cycle is constant.
9. a kind of LEU circuit switching devices, including memory, processor and it is stored on the memory and can be in the processing
The computer program run on device, it is characterised in that realize that right such as will when the computer program is performed by the processor
Seek the step in the LEU circuit switching methods any one of 1 to 4.
10. a kind of computer-readable recording medium, is stored thereon with computer program, it is characterised in that the computer program
The step in LEU circuit switching methods according to any one of claims 1 to 4 is realized when being executed by processor.
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