CN103036649A - High-speed train based fault early warning information heterogeneous reuse wireless transmission method - Google Patents
High-speed train based fault early warning information heterogeneous reuse wireless transmission method Download PDFInfo
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Abstract
The invention relates to a high-speed train based fault early warning information heterogeneous reuse wireless transmission method which comprises transmitting end information transmission and receiving end information transmission. Information transmission between a transmitting end and a receiving end is performed through wireless channels; feature extraction and randomization process are performed by the transmitting end to fault early warning information; the fault information is classified in grades; code comparison is performed between obtained information and a fault information data base of the transmitting end; processed results are sent to a dual-channel low-bit-rate heterogeneous channel coding and interweaving module, and enters a frame data reuse module, and therefore frame reuse fault information is formed; and the frame reuse fault information passes through a baseband signal preprocessing unit and is sent to a multiple-input-multiple-output digital modulation radio frequency unit, and the data are output. The receiving end transmission is performed conversely. Module loop tests are added to cover multi-mode links respectively in the receiving information transmission and the transmitting information transmission, and therefore the reliability of fault processing is increased. The high-speed train based fault early warning information heterogeneous reuse wireless transmission method is capable of enabling the high credible wireless transmission of the fault early warning information and more convenient and more efficient fault analysis and processing to be achieved.
Description
Technical field
The present invention relates to a kind of communication means, particularly a kind of multiplexing radio transmitting method of fault pre-alarming Information heterogeneity based on bullet train.
Background technology
Safety and high speed are two general objectives that high speed rail system is pursued, the car-ground radio communication is an important and crucial part, running state of the vehicle, safe condition directly affect operation and the security situation of whole piece track circuit, credible and efficient car-ground communication system is the key that guarantees train command scheduling, security of operation, is the requirements that improve operation service quality to the Real-Time Monitoring of train fault early warning information data.Therefore, one independently train fault early warning information wireless transmission scheme can Real Time Monitoring train operation fault message, is very important and necessary for railway traffic.
Summary of the invention
The present invention be directed to independently train fault early warning information wireless transmission to the problem of bullet train fail safe importance, a kind of multiplexing radio transmitting method of fault pre-alarming Information heterogeneity based on bullet train has been proposed, the method can be independent of other car-ground radio data transmission system, Real Time Monitoring vehicle trouble early warning information, classification is extracted, storage and preliminary treatment, adopt the chnnel coding of twin-channel low error rate and carry out the isomery frame compound, information is through vehicle-mounted many inputs and many output rf terminal modulate emission, be transferred to the ground control centre, conveniently to carry out accident analysis and diagnosis.
Technical scheme of the present invention is: a kind of multiplexing radio transmitting method of fault pre-alarming Information heterogeneity based on bullet train, comprise transmitting terminal communication and receiving terminal communication, and carry out communication by wireless channel between transmitting terminal and the receiving terminal,
The transmitting terminal communication: bullet train fault pre-alarming information intelligent gathers with compound sensor to transmitting terminal, after transmitting terminal carries out feature extraction and randomization to fault pre-alarming information, send the storage pretreatment unit to the fault message grade separation, after can storing information simultaneously, the information that obtains and the failure information database of transmitting terminal are carried out code and are compared, fault pre-alarming information for high-level starts the transmitting terminal emergency processing, after other early warning fault message send the low code check isomery chnnel coding of binary channels and interleaving block, enter the frame data Multiplexing module, after forming the multiplexing fault message of frame, by giving multiple-input and multiple-output Digital Modulation radio frequency unit behind the baseband signal pretreatment unit data are sent;
The receiving terminal communication: the information of reception is through Multiinputoutput digital demodulation unit digital demodulation unit, send to the baseband signal pretreatment unit through the information after the demodulation, by the identification to definition frame, the recovery system demodulating information, then carrying out the relevant demultiplexing of the front fault message frame of isomery channel-decoding processes, arrive the also front Heterogeneous Information of original encoding of Turbo code and LDPC code decoder, after the binary-channel redundancy mode is decoded, enter the contrary processing module of fault message correlation and carry out the inversely related processing, send the storage pretreatment unit to classify and store, to extracting the vehicle mounted failure early warning information, deliver to intellectual analysis and processing terminal at last;
In reception and transmission communication, module failure coverage test and state display module have all been embedded, increase the module loop test and cover the multi-mode link, the information of the information of the low code check isomery channel coding module of binary channels and the output of baseband signal pretreatment unit is sent and is sent module failure test generation module to process as the source that fault enters communication again after many closed loops receiver module is compared in module failure coverage test and the state display module, confirms that result's information send display module to show.
Described module loop test covers the multi-mode link data randomisation process, fault level assorting process, the redundant process of data double-way isomery, data framing and digital base band processor process is carried out the scanning of fault chain, carry out first for the first time scanning of Test coverage circulation, if scanning is compared successfully, wait for the next cycle retest covering that arranges, if scan chain is compared unsuccessfully, dwindle sweep test and cover link, again comparison, until find the fault data module, process through intellectual analysis, malfunctioning module is controlled processing.
Beneficial effect of the present invention is: the present invention is based on the multiplexing radio transmitting method of fault pre-alarming Information heterogeneity of bullet train, can to the high believable wireless transmission of fault pre-alarming information realization, realize convenient, quick and reliable accident analysis and processing.
Description of drawings
Fig. 1 the present invention is based on transmitting terminal communication schematic block diagram in the multiplexing radio transmitting method of fault pre-alarming Information heterogeneity of bullet train;
Fig. 2 the present invention is based on receiving terminal communication schematic block diagram in the multiplexing radio transmitting method of fault pre-alarming Information heterogeneity of bullet train;
Fig. 3 is the logic control schematic diagram that the present invention is based on module testing capping unit in the multiplexing radio transmitting method of fault pre-alarming Information heterogeneity of bullet train.
Embodiment
The multiplexing radio transmitting method of fault pre-alarming Information heterogeneity based on bullet train comprises transmitting terminal communication and receiving terminal communication, carries out communication by wireless channel between transmitting terminal and the receiving terminal.Transmitting terminal communication schematic block diagram as shown in Figure 1, bullet train fault pre-alarming information intelligent gathers with compound sensor to transmitting terminal, after transmitting terminal carries out feature extraction and randomization to fault pre-alarming information, send the storage pretreatment unit to the fault message grade separation, after can storing information simultaneously, carry out correlation and process, the information that obtains and the failure information database of transmitting terminal are carried out code and are compared, for the fault pre-alarming information startup transmitting terminal emergency processing of high-level.Channel low signal-to-noise ratio problem for the reply bullet train, transmitting terminal has adopted the low code check isomery chnnel coding of binary channels and interleaving block, the line correlation of going forward side by side is processed, to reduce the impact of different noises, enter the frame data Multiplexing module, after forming the multiplexing fault message of frame, by giving multiple-input and multiple-output Digital Modulation radio frequency unit behind the baseband signal pretreatment unit data are sent the opposing high-speed mobile
InChannel fading.
Be receiving terminal communication schematic block diagram such as Fig. 2, the information that receives is through Multiinputoutput digital demodulation unit digital demodulation unit, send to the baseband signal pretreatment unit through the information after the demodulation, by the identification to definition frame, the recovery system demodulating information, then carrying out the relevant demultiplexing of the front fault message frame of isomery channel-decoding processes
AdvancedTurbo code and LDPC code decoder module be the front Heterogeneous Information of original encoding also, after the binary-channel redundancy mode is decoded, enter the contrary processing module of fault message correlation and carry out the inversely related processing, send the storage pretreatment unit to classify and store, to extracting the vehicle mounted failure early warning information, deliver to intellectual analysis and processing terminal at last.
For work and the malfunction of grasping each operational module soft hardware performance, in reception and transmission communication, module failure coverage test and state display module have all been embedded, increase the module loop test and cover the multi-mode link, the information of the information of the low code check isomery channel coding module of binary channels and the output of baseband signal pretreatment unit is sent and is sent module failure test generation module to process as the source that fault enters communication again after many closed loops receiver module is compared in module failure coverage test and the state display module, confirms that result's information send display module to show.
See the logic control schematic diagram of module testing capping unit shown in the accompanying drawing 3.The Test coverage link mainly carries out the scanning of fault chain to data randomisation process, fault level assorting process, the redundant process of data double-way isomery, data framing and digital base band processor process, carry out first for the first time scanning of Test coverage circulation, if scanning is compared successfully, wait for the next cycle retest covering that arranges, if scan chain is compared unsuccessfully, dwindle sweep test and cover link, again comparison, until find the fault data module, process through intellectual analysis, malfunctioning module is controlled processing, and test result and state show the most at last.
Claims (2)
1. the multiplexing radio transmitting method of fault pre-alarming Information heterogeneity based on bullet train is characterized in that, comprises transmitting terminal communication and receiving terminal communication, carries out communication by wireless channel between transmitting terminal and the receiving terminal;
The transmitting terminal communication: bullet train fault pre-alarming information intelligent gathers with compound sensor to transmitting terminal, after transmitting terminal carries out feature extraction and randomization to fault pre-alarming information, send the storage pretreatment unit to the fault message grade separation, can store information simultaneously, the information that obtains and the failure information database of transmitting terminal are carried out code and are compared, fault pre-alarming information for high-level starts the transmitting terminal emergency processing, after other early warning fault message send the low code check isomery chnnel coding of binary channels and interleaving block, enter the frame data Multiplexing module, after forming the multiplexing fault message of frame, by giving multiple-input and multiple-output Digital Modulation radio frequency unit behind the baseband signal pretreatment unit data are sent;
The receiving terminal communication: the information of reception is through Multiinputoutput digital demodulation unit digital demodulation unit, send to the baseband signal pretreatment unit through the information after the demodulation, by the identification to definition frame, the recovery system demodulating information, then carrying out the relevant demultiplexing of the front fault message frame of isomery channel-decoding processes, arrive the also front Heterogeneous Information of original encoding of Turbo code and LDPC code decoder, after the binary-channel redundancy mode is decoded, enter the contrary processing module of fault message correlation and carry out the inversely related processing, send the storage pretreatment unit to classify and store, to extracting the vehicle mounted failure early warning information, deliver to intellectual analysis and processing terminal at last;
In reception and transmission communication, module failure coverage test and state display module have all been embedded, increase the module loop test and cover the multi-mode link, the information of the information of the low code check isomery channel coding module of binary channels and the output of baseband signal pretreatment unit is sent and is sent module failure test generation module to process as the source that fault enters communication again after many closed loops receiver module is compared in module failure coverage test and the state display module, confirms that result's information send display module to show.
2. the described multiplexing radio transmitting method of fault pre-alarming Information heterogeneity based on bullet train according to claim 1, it is characterized in that, described module loop test covers the multi-mode link to the data randomisation process, fault level assorting process, the redundant process of data double-way isomery, data framing and digital base band processor process are carried out the scanning of fault chain, carry out first for the first time scanning of Test coverage circulation, if scanning is compared successfully, wait for the next cycle retest covering that arranges, if scan chain is compared unsuccessfully, dwindle sweep test and cover link, again comparison, until find the fault data module, process through intellectual analysis, malfunctioning module is controlled processing.
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| CN107888397A (en) * | 2016-09-30 | 2018-04-06 | 华为技术有限公司 | The method and apparatus for determining fault type |
| CN107925600A (en) * | 2015-12-16 | 2018-04-17 | 松下电器（美国）知识产权公司 | Security processing and server |
| CN108153278A (en) * | 2017-12-19 | 2018-06-12 | 卡斯柯信号有限公司 | CBTC signal system DCS fault diagnosises and early warning analysis method |
| CN108777605A (en) * | 2018-05-24 | 2018-11-09 | 西安电子科技大学 | Multichain SC-LDPC coding methods suitable for bulk nanometer materials |
| CN109889369A (en) * | 2019-01-08 | 2019-06-14 | 北京全路通信信号研究设计院集团有限公司 | Multi-network redundant data transmission method |
| CN112099395A (en) * | 2020-08-20 | 2020-12-18 | 后英集团鞍山活龙矿业有限公司 | Mining area safety monitoring and controlling system |
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| CN107925600A (en) * | 2015-12-16 | 2018-04-17 | 松下电器（美国）知识产权公司 | Security processing and server |
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| CN107888397B (en) * | 2016-09-30 | 2020-12-25 | 华为技术有限公司 | Method and device for determining fault type |
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| CN108777605A (en) * | 2018-05-24 | 2018-11-09 | 西安电子科技大学 | Multichain SC-LDPC coding methods suitable for bulk nanometer materials |
| CN109889369A (en) * | 2019-01-08 | 2019-06-14 | 北京全路通信信号研究设计院集团有限公司 | Multi-network redundant data transmission method |
| CN112099395A (en) * | 2020-08-20 | 2020-12-18 | 后英集团鞍山活龙矿业有限公司 | Mining area safety monitoring and controlling system |
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