CN102530028B - Railway track real-time monitoring system and data processing method thereof - Google Patents
Railway track real-time monitoring system and data processing method thereof Download PDFInfo
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- CN102530028B CN102530028B CN201210017240.3A CN201210017240A CN102530028B CN 102530028 B CN102530028 B CN 102530028B CN 201210017240 A CN201210017240 A CN 201210017240A CN 102530028 B CN102530028 B CN 102530028B
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Abstract
The invention discloses a railway track real-time monitoring system and a data processing method thereof, and belongs to the filed of railway track safety. The railway track real-time monitoring system comprises a piezoelectric sensor, a collection box, a wireless sensor and a vibrator, wherein both the piezoelectric sensor and the vibrator are arranged on the railway track and connected with the collection box; the wireless sensor is arranged on a high-voltage power line; the collection box sends an encryption signal to the vibrator; the vibrator drives the railway track to generate the vibration; the piezoelectric sensor acquires a vibration audio signal on the railway track and sends the vibration audio signal to the collection box for processing; and the collection box transmits the vibration audio signal through the wireless sensor in a wireless or wired transmission way. In the invention, the vibration audio signal is taken as a data basis for analyzing the failure happening in front of a train, the monitoring blind zone of the railway track is eliminated, the integral collection of the fault analysis basis data is achieved, the failure happening in front of the train can be predicted through the data processing method, and the intelligentization and the netwoking of the monitoring system are improved greatly.
Description
Technical field
The present invention relates to railway track safety monitoring system, especially a kind of railway track real-time monitoring system and data processing method thereof based on vibration audio signal.
Background technology
Railway transportation is as the indispensable communications and transportation mode of modern society, born the traffic capacity of 50% left and right in China, by the end of 2006 the end of the year Chinese Railway total kilometrage be 76600 kilometers, according to up-to-date railway planning, China reaches the total kilometrage that makes railway at the year two thousand twenty more than 120,000 kilometers, and realizes more than 95% multiple line.Transportation Development is just towards multiple line and high speed development.
The development of railway will bring huge economic well-being of workers and staff to country, brings great convenience, and can drive the develop rapidly of related industry to the people.But the high speed development of railway also brings a lot of problems, especially transportation safety problem is the most outstanding.The major traffic accidents that occur in for nearly 2 years on railway show frequently, in order to reduce as far as possible accident rate, guarantee railway safety, need to improve the awareness of safety of railway interests on the one hand, need on the other hand to ensure the construction quality of railway engineering, also have the safety monitoring that will strengthen exactly on the one hand railroad track, can in the time that danger occurs, as early as possible information be sent to train, railway monitoring center and railway dispatching center, win the valuable time to processing danger, prevent trouble before it happens.
Current international and domestic rail conditions safety detection and control mainly contain four kinds of modes:
1. video monitoring.The conditionality of the method climate is too large, such as foggy weather etc.;
2. ultrasound examination.The method is subject to geographic factor as too large in factor restrictions such as turning tunnels;
3. the signal of telecommunication (command lamp) commander.The method climate condition (thunderbolt etc.) and power-supply system restriction;
4. the security inspection of manually inspecting the road.The method flexibility is good, but result varies with each individual, and management difficulty is very large, waste of human resource, and input cost is higher.And be subject to the constraint of regional condition, and go on patrol in addition workman and can not within 24 hours, patrol and examine, can not accomplish that round-the-clock and system-wide section patrols and examines simultaneously.
Inevitably there is blind area and the blind spot of self in above-mentioned four kinds of modes, has great potential safety hazard.Therefore, the automatic on-line formula detection alarm system of research and development rail system is the certainty of railway industry security developments.
Summary of the invention
One of object of the present invention is to provide a kind of railway track real-time monitoring system, the basis using the vibration audio signal of railroad track as accident analysis, and the monitoring blind area of having eliminated railroad track, has realized the complete collection of accident analysis basic data.
Another object of the present invention is to provide a kind of data processing method of railway track real-time monitoring system, only need considerably less human assistance monitoring, can complete complicated huge rail monitoring, predict exactly train front fault, greatly improved intellectuality, the networking of monitoring system and significantly reduced the working strength of railway track inspection work.
To achieve these goals, the invention provides a kind of railway track real-time monitoring system, it is characterized in that: comprise piezoelectric transducer, collecting cassette and wireless senser, wherein said piezoelectric transducer is arranged on railroad track and connects described collecting cassette, described collecting cassette connects described wireless senser, and described wireless senser is arranged on high voltage power line;
Described piezoelectric transducer is for gathering the vibration audio signal on railroad track;
Described collecting cassette is used for described vibration audio signal to carry out modulation treatment, and the vibration audio signal after modulation is sent to described wireless senser;
Described wireless senser is for transmitting this vibration audio signal after treatment with wireless or wire transmission mode.
The transmission medium of this wire transmission mode comprise high voltage power line, power line Support Level, set up special additional communication circuit, fiber plant order wire, utilize at least one in signal lamp existing communication circuit, and this wireless transmission method comprises at least one in WIFI, bluetooth, zigbee, radio frequency and gps satellite, satellite communication, wherein, when transmit this vibration audio signal taking high voltage power line as transmission medium, transmit this vibration audio signal after treatment by high voltage power line with the form of power line carrier.
This railway track real-time monitoring system also comprises the vibrator being arranged on railroad track, and wherein said collecting cassette is for sending coded signal to described vibrator, and described vibrator drives railroad track to produce vibration.
This railway track real-time monitoring system also comprises at least one in Train Control chamber, control room, station and circuit monitoring chamber, and wherein said wireless senser is transferred at least one in described Train Control chamber, control room, station and circuit monitoring chamber with wireless or wire transmission mode by vibration audio signal after treatment.
Described Train Control chamber gathers the vibration audio signal of 5 ~ 10 wireless sensers in train front while adopting wireless transmission method to receive vibration audio signal.
Described piezoelectric transducer (1) is arranged on the centre position of railroad track (2) upper rail groove (4).
Described wireless senser is made up of power supply unit, processing unit, wireless communication unit, magnet ring and magnet ring card, and wherein said power supply unit is used for providing power supply;
Described magnet ring is for receiving treated vibration audio signal and send to processing unit by winding displacement from described collecting cassette;
Described processing unit is for processing this vibration audio signal;
Described processing unit also connects respectively wireless communication unit, wire transmission circuit, for transmitting this vibration audio signal with wireless or wired mode respectively.
Described Train Control chamber, control room, station and circuit monitoring chamber are for carrying out transferring to cable network after superencipher to described vibration audio signal, be transferred to higher level's Control Room by described cable network, and this higher level's Control Room transfers to dedicated network after three times are encrypted, and is transferred to monitoring master station by described dedicated network.
Described railway track real-time monitoring system has self-operating status monitoring function, in the time breaking down, can make a response in time.
The present invention also provides a kind of data processing method of above-mentioned railway track real-time monitoring system, it is characterized in that comprising the following steps:
S1, setting are processed the vibration audio signal of wireless senser on a section of railway track track, judge whether whether the vibration audio signal on this section of railway track track has gathered: if gathered, all vibration audio signals are carried out to sampling filter, sequence; If do not gathered, continue to carry out acquisition step;
S2, to sequence after vibration audio signal carry out providing data formatting;
S3, employing adaptive approach are processed the vibration audio signal after format, then are adopted respectively auto-correlation function and cross-correlation function to process;
S4, judge for the result of auto-correlation function whether data exist extremely: if existed extremely, represent that train front may exist static failure, after result that will auto-correlation function is encrypted modulation, send to artificial neural net;
S5, for the result of cross-correlation function, again adopt adaptive approach to process: to disturb repeated execution of steps S2～S5 if the result of this adaptive approach shows between this railroad track and adjacent railroad track to exist;
Do not have interference if the result of this adaptive approach shows between this railroad track and adjacent railroad track, the malfunction coding further comprising according to the result of this adaptive approach judges the fault type of this railroad track: if the fault type of railroad track is the fault that rail equipment and natural cause cause, recording processing result also sends to artificial neural net; If the fault type of railroad track is the fault that human factor causes, records this result and after modulation, send to artificial neural net;
S6, artificial neural net, according to the result receiving, calculate and obtain optimal case;
S7, employing FUZZY ALGORITHMS FOR CONTROL are processed this optimal case, output controlled quentity controlled variable, and showing this controlled quentity controlled variable of screen display: if be level and smooth attenuation curve from the nearly corresponding controlled quentity controlled variable curve of wireless senser extremely far away, represent not have roadblock on this section of railway track track; If represent on this section of railway track track to have roadblock to wireless senser institute far away corresponding controlled quentity controlled variable curve appearance sudden change near, wherein each controlled quentity controlled variable is all corresponding to a malfunction coding.
The data processing method of this railway track real-time monitoring system also comprises the step of determining roadblock type on railroad track:
In the time there is sudden change from the corresponding controlled quentity controlled variable curve of nearly wireless senser institute extremely far away, further check the malfunction coding that sudden change place controlled quentity controlled variable is corresponding, determine roadblock type according to this malfunction coding.
In sum, owing to having adopted technique scheme, the invention has the beneficial effects as follows:
1, adopt piezoelectric transducer to gather the vibration audio signal that in train driving, railroad track produces, this vibration audio signal sends to wireless senser after processing by collecting cassette, by wireless senser by wired or wireless way for transmitting to Train Control chamber etc., basis using the vibration audio signal of railroad track as accident analysis, eliminate the monitoring blind area of railroad track, realized the complete collection of accident analysis data;
2, adopt the wire transmission medium of high-voltage power line as vibration audio signal, vibration audio signal not only can be carried out long-distance transmissions, and in transmitting procedure, needn't consider high mountain and tunnel stopping wireless signal;
3, set up vibrator, also can realize monitoring for train without the railroad track often passing through;
4, Train Control chamber adopts wireless transmission method to receive vibration audio signal, not only can judge exactly the position of train, and can judge the traffic direction of train; In addition Train Control device only gathers the vibration audio signal of 5 ~ 10 wireless sensers in train front, not only transmitting procedure is simple, and the vibration audio signal collecting is enough to accurately judge train front railroad track and whether has roadblock, so that having the sufficient time, train makes a response;
5, piezoelectric transducer is arranged on the centre position of guide-track groove, has further improved the accuracy of vibration audio signal sample;
6, wireless senser adopts magnet ring alternate antenna to carry out image data, makes that the data volume that collects is large and precision is higher; And increase magnet ring card at the downside of magnet ring, magnet ring is fixed on high-voltage line in the mode of clamping, realized wireless senser is arranged on high-voltage line;
7, Train Control chamber, control room, station and circuit monitoring chamber are for carrying out transferring to cable network after superencipher to described vibration audio signal, be transferred to higher level's Control Room by this cable network, and this higher level's Control Room transfers to dedicated network after three times are encrypted, be transferred to monitoring master station by dedicated network, realize thus the stereoscopic monitoring network that railway is monitored from rail track to the Ministry of Railways, and set up the expert database of railroad track, thereby realize the automatic decision of train to related data, strengthened the automation and intelligentification performance of train;
8, railway track real-time monitoring system has self-operating status monitoring function, in the time breaking down, can make a response in time;
9, the static roadblock to train front, dynamic roadblock are predicted exactly respectively to adopt auto-correlation function and cross-correlation function; Adopt artificial neural net solved rail wear and tear for a long time, because of the different problem of the different railway track information of geographic factor, and FUZZY ALGORITHMS FOR CONTROL provides fuzzy matching, increase intelligent, judged the state of railroad track by fuzzy control rule table, make train have time enough to take urgent measure when situation appears in rail forwardly.
Brief description of the drawings
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein:
Fig. 1 is the circuit theory diagrams of railway track real-time monitoring system in the present invention;
Fig. 2 is the scheme of installation of piezoelectric transducer in the first embodiment of the present invention;
Fig. 3 is the circuit theory diagrams of collecting cassette in the first embodiment of the present invention;
Fig. 4 is the circuit theory diagrams of wireless senser in the first embodiment of the present invention;
Fig. 5 is the scheme of installation of wireless senser in the first embodiment of the present invention;
Fig. 6 is the flow chart of data processing method in the present invention.
Mark in figure: A is higher level's Control Room, and B is monitoring master station, and 1 is piezoelectric transducer, and 2 is railroad track, and 3 is sleeper, and 4 is guide-track groove, and 5 is magnet ring, and 6 is magnet ring card, and 7 is high voltage power line, and 8 is train brush.
Embodiment
Disclosed all features in this specification, or step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.
Disclosed arbitrary feature in this specification (comprising any accessory claim, summary and accompanying drawing), unless narration especially all can be replaced by other equivalences or the alternative features with similar object.,, unless narration especially, each feature is an example in a series of equivalences or similar characteristics.
As shown in Figure 1, this railway track real-time monitoring system is made up of piezoelectric transducer, collecting cassette, wireless senser, Train Control chamber, control room, station, circuit monitoring chamber, higher level's Control Room A and monitoring master station B, wherein piezoelectric transducer is arranged on railroad track and connects this collecting cassette, and collecting cassette connects wireless senser and this wireless senser is arranged on high voltage power line.Piezoelectric transducer gathers the vibration audio signal on railroad track and this vibration audio signal is sent to collecting cassette processing, treated vibration audio signal is sent to wireless senser by collecting cassette, and wireless senser is for being transferred to Train Control chamber, control room, station and circuit monitoring chamber with wireless or wire transmission mode by this vibration audio signal after treatment.Vibration in gathering when above-mentioned vibration audio signal only for train driving process when impact railway rail, only could realize monitoring at train during by this railroad track, cannot realize monitoring for train without the railroad track often passing through.In order to address the above problem, the present invention has increased vibrator, this vibrator is arranged on railroad track and by wire and is connected with collecting cassette, and collecting cassette sends coded signal (being oscillator signal) to this vibrator, and vibrator drives railroad track to produce faint vibration.
In addition, the transmission medium of above-mentioned this wire transmission mode comprise high voltage power line, power line Support Level, set up special additional communication circuit, fiber plant order wire, utilize at least one in signal lamp existing communication circuit, and this wireless transmission method comprises at least one in the satellite communications such as WIFI, bluetooth, zigbee, radio frequency and gps satellite, Galilean satellite system and Chinese big-dipper satellite.In the first embodiment of the present invention, using radio frequency transmission as wireless transmission method, high voltage power line is example as wire transmission medium.
As shown in Figure 2, railroad track 2 is arranged on sleeper 3, this piezoelectric transducer 1 is arranged on the centre position of the guide-track groove 4 of railroad track 2 sides, two lead-in wires of piezoelectric transducer 1 connect the collector being buried on railroad track limit, this piezoelectric transducer is arranged on to the centre position of guide-track groove, has further improved the accuracy of vibration audio signal sample.In addition, adopt SMD piezoelectric transducer in the present invention, volume is little, is convenient to be arranged on the side of railroad track.
As shown in Figure 3, this collecting cassette is made up of power supply unit, control unit and wireless transport module, power supply unit is for providing power supply to control unit and wireless transport module respectively, control unit is used for receiving this vibration audio signal and this vibration audio signal is carried out to analog-to-digital conversion, amplification and modulation treatment, and vibration audio signal after treatment sends to wireless senser by wireless transport module.In addition, in collecting cassette, control unit also provides response signal to vibrator, makes vibrator drive railroad track to produce faint vibration.
As shown in Figure 4, this wireless senser is made up of power supply unit, processing unit, data acquisition unit and wireless communication unit, wherein this power supply unit is for providing power supply to processing unit and wireless communication unit, data acquisition unit is for receiving vibration audio signal and this vibration audio signal is sent to processing unit from collecting cassette, this processing unit is for carrying out demodulation, decryption processing to this vibration audio signal, and this vibration audio signal after demodulation, decryption processing can directly send to Train Control chamber or control room, station by this wireless communication unit; Also can send to after high voltage power line, with the form of power line carrier, vibration audio signal be sent to at least one in Train Control chamber, control room, station and circuit monitoring chamber by high voltage power line.
Because data acquisition unit in traditional wireless senser mostly adopts the form of antenna and do not possess, wireless senser is arranged on to the structure on high-voltage line, therefore adopt in the present embodiment magnet ring to carry out alternate antenna and carry out image data, and at the downside of magnet ring, a magnet ring card is set, as shown in Figure 5, train brush 8 is positioned at the below of high voltage power line 7, this magnet ring 5 is installed on the top of high voltage power line 7 in the mode of magnet ring card 6, magnet ring 5 connects processing unit by winding displacement, and this processing unit connects respectively high voltage power line 7, wireless communication unit by wire.Wireless senser in the present embodiment can receive the vibration audio signal of 20 collecting cassettes conventionally.Owing to adopting magnet ring to substitute the antenna in conventional wireless sensor, the data volume that wireless senser collects is larger and data precision is higher, and data after treatment not only can adopt the mode of wireless transmission to transmit, and can also adopt the mode of power line carrier to transmit.
Train Control chamber can be adopted and be obtained in two ways vibration audio signal: the first is that wireless senser directly sends to Train Control chamber by vibration audio signal.Because the transmission range of wireless senser is limited, if Train Control chamber will obtain the vibration audio signal of all wireless sensers, must depend on the communication between adjacent wireless senser, but it is large to vibrate transmitting procedure more complicated and the data processing amount of audio signal between wireless senser.The present invention's design Train Control chamber in the time adopting this kind of mode to obtain vibration audio signal can receive the vibration audio signal of 3～10 wireless sensers in train front, according to the difference of wireless senser communication distance, wireless senser can directly be transferred to Train Control chamber by vibration audio signal, also can vibration audio signal be transferred to Train Control chamber by the mutual transmission between wireless senser.In addition, in the time of brake, there is a braking distance in train, the factors such as quality, speed and the brake apparatus of this braking distance and train are relevant, and generally travel speed is that to require braking distance be 800m for train below 120km/h, travel speed is that to require braking distance be 1400m to the train of 160km/h, travel speed be the train of 200km/h to require braking distance be 2000m, it is 6000m that the train that travel speed is 350km/h at least requires braking distance; And the effective propagation path of wireless senser is several kilometers conventionally, consider and there is the mountain railway track that tunnel and high mountain stop, the effective propagation path of wireless senser will shorten, whether there is roadblock in order accurately to judge train front railroad track, so that having the sufficient time, train makes a response, preferably, Train Control chamber gathers the vibration audio signal of at least 5 wireless sensers in train front.Because the train wireless senser that Train Control chamber receives in traveling process is constantly to change, therefore Train Control chamber not only can judge the position of train exactly, and can judge the traffic direction of train.
The second is that vibration audio signal is sent to high voltage power line by wireless senser, with the form of power line carrier, vibration audio signal is transferred to Train Control chamber by this high voltage power line.Thus, between wireless senser, needn't carry out complicated transmission and a large amount of data processings, Train Control chamber can obtain the vibration audio signal of all wireless sensers on railroad track very simply.
Control room, station and circuit monitoring chamber are in the time obtaining vibration audio signal, vibration audio signal is sent to high voltage power line by wireless senser, with the form of power line carrier, vibration audio signal is transferred to control room, station and circuit monitoring chamber by this high voltage power line, thereby the vibration audio signal of all wireless sensers on railroad track is monitored.Adopt the mode of high-voltage power line transmission, vibration audio signal not only can be carried out long-distance transmissions, and in transmitting procedure, needn't consider high mountain and tunnel stopping wireless signal.
If Train Control chamber adopts above-mentioned first kind of way to obtain vibration audio signal, control room, station and circuit monitoring chamber can also obtain from Train Control chamber the vibration audio signal of corresponding wireless senser, thereby position and traffic direction to train are monitored.It should be noted: Train Control chamber, control room, station and circuit monitoring chamber are respectively arranged with corresponding receiving box, and are provided with wireless transport module in this receiving box, to receive vibration audio signal.
As shown in Figure 1, Train Control chamber, control room, station and circuit monitoring chamber are receiving after vibration audio signal, can carry out superencipher to vibration audio signal, then transfer to cable network, higher level's Control Room A obtains the vibration audio signal of each wireless senser from cable network.This higher level's Control Room A comprises in large-scale station, Railway Bureau and provincial railway monitoring in the heart at least one.In addition, this higher level's Control Room can also carry out three times to vibration audio signal to be encrypted, then transfers to dedicated network, and monitoring master station B(is that control centre of the Ministry of Railways is or/and Surveillance center of the Ministry of Railways) from dedicated network, obtain vibration audio signal.Thus, realize real-time security monitoring, scheduling and the statistics of railroad track, and be conducive to set up the expert database of railroad track, thereby realized the automatic decision of train to relevant information, strengthened the performance of the automation and intelligentification of train.In addition, this railway track real-time monitoring system also has self-operating status monitoring function, such as can make in time reflection in the time that electricity shortage appears in collecting cassette, wireless senser etc.
In sum, realized the collection of vibrating audio signal on railroad track.But, because double-tracking railways track may exist the interference of adjacent railroad track, such as crosstalking between adjacent railroad track, adjacent railroad track train operation interference etc.; In addition, on railroad track, also may there are other interference: impulsive disturbance and the thunder and lightning interference to transmission path etc. of the natural phenomenas such as interference, rainstorm and hail of walking about such as patrolman etc. on railroad track to railroad track.Therefore, only rely on the above-mentioned vibration audio signal collecting to be not enough to analyze exactly the roadblock on railroad track.In Train Control chamber, control room, station and circuit monitoring chamber be handled as follows the vibration audio frequency signal demand receiving, as shown in Figure 6:
S1, setting are only processed a certain section of railway track track on china railway track, judge whether whether the vibration audio signal on this section of railway track track has gathered: if gathered, all vibration audio signals are carried out to sampling filter, sequence; If do not gathered, continue to carry out acquisition step.
S2, to sequence after vibration audio signal carry out providing data formatting.
S3, employing adaptive approach are processed the vibration audio signal after format, then are adopted respectively auto-correlation function and cross-correlation function to process.By adopting auto-correlation function and cross-correlation function, the static roadblock to train front, dynamic roadblock are predicted exactly respectively.
S4, judge for the result of auto-correlation function whether data exist extremely: if existed extremely, represent that train front may exist static failure, after result that will auto-correlation function is encrypted modulation, send to artificial neural net further to process.
S5, for the result of cross-correlation function, again adopt adaptive approach to process: to disturb repeated execution of steps S2～S5 if the result of this adaptive approach shows between this railroad track and adjacent railroad track to exist;
Do not have interference if the result of this adaptive approach shows between this railroad track and adjacent railroad track, the malfunction coding further comprising according to the result of this adaptive approach judges the fault type of this railroad track: if the fault type of railroad track is the fault that rail equipment and natural cause cause, recording processing result also sends to artificial neural net; If the fault type of railroad track is the fault that human factor causes, records this result and after modulation, send to artificial neural net.This fault is divided three classes in the present embodiment: the fault that rail equipment, natural cause and human factor cause, the fault that wherein rail equipment causes comprise rail fracture, rail connect loosening, railway spike is loosening, bolt hole crack, rail head hurt, web of the rail hurt, weld seam hurt, rail are aging, track deformation and other hurts, corresponds respectively to malfunction coding: 0x80,0xa1,0xa2,0x83,0xc4,0xe5,0xe6,0xc7,0xc0,0xe9; The fault that natural cause causes comprises that landslide, Subgrade Subsidence and roadbed are loosening, corresponds respectively to malfunction coding: 0xea, 0xcb and 0x8c; The fault that human factor causes comprises on railroad track barrier, corresponding to malfunction coding: 0xad.
S6, artificial neural net, according to the result receiving, calculate and obtain optimal case;
S7, employing FUZZY ALGORITHMS FOR CONTROL are processed this optimal case, output controlled quentity controlled variable, and showing this controlled quentity controlled variable of screen display: if be level and smooth attenuation curve from the nearly corresponding controlled quentity controlled variable curve of wireless senser extremely far away, represent not have roadblock on this section of railway track track; If represent on this section of railway track track to have roadblock to wireless senser institute far away corresponding controlled quentity controlled variable curve appearance sudden change near, wherein each controlled quentity controlled variable is all corresponding to the malfunction coding described in a step S5.
S8, while there is sudden change to the corresponding controlled quentity controlled variable curve of wireless senser institute far away, further checking the malfunction coding that sudden change place controlled quentity controlled variable is corresponding near, determine roadblock type according to this malfunction coding.The corresponding relation of having described malfunction coding and fault type in step S5 in detail, will not tire out and state in this step.
It should be noted: above-mentioned adaptive approach, auto-correlation function, cross-correlation function, artificial neural net and FUZZY ALGORITHMS FOR CONTROL are ripe technology, the processing that it is concrete and computational process will not be tired out and state in the present invention.
By adopt artificial neural net solved rail wear and tear for a long time, because of the different problem of the different railway track information of geographic factor, and FUZZY ALGORITHMS FOR CONTROL provides fuzzy matching, increase intelligent, judged the state of railroad track by fuzzy control rule table, make train have time enough to take urgent measure when situation appears in rail forwardly.
In sum, realize railroad track on-line real time monitoring by the present invention, realize, rails crackle loosening to the railway spike of track, track soil stone obstacle, track broken string, natural calamity and cause the malfunction monitoring such as cannot drive a vehicle.Native system utilizes radio sensing network image data, utilize and load faint modulation coded signal to train power supply power line, realize to train driving chamber, the transmission data such as site monitoring chamber, website control room, railway line control room, data send data by cable network and the wireless network in railway line control room to monitoring center of Railway Bureau control room and Ministry of Railways control room again, have realized the stereoscopic monitoring network that railway is monitored from rail track to the Ministry of Railways; And only need the monitoring of considerably less human assistance, can complete complicated huge rail monitoring, the intellectuality, the networking that have greatly improved monitoring system, significantly reduced the working strength of railway track inspection work.
The present invention is not limited to aforesaid embodiment.The present invention expands to any new feature or any new combination disclosing in this manual, and the arbitrary new method disclosing or step or any new combination of process.
Claims (8)
1. a railway track real-time monitoring system, it is characterized in that: comprise piezoelectric transducer, collecting cassette and wireless senser, wherein said piezoelectric transducer is arranged on railroad track and connects described collecting cassette, described collecting cassette connects described wireless senser, and described wireless senser is arranged on high voltage power line;
Described piezoelectric transducer is for gathering the vibration audio signal on railroad track;
Described collecting cassette is used for described vibration audio signal to carry out modulation treatment, and the vibration audio signal after modulation is sent to described wireless senser;
Described wireless senser is for transmitting this vibration audio signal after treatment with wireless or wire transmission mode;
The transmission medium of this wire transmission mode comprise high voltage power line, power line Support Level, set up special additional communication circuit, utilize at least one in the existing communication circuit of signal lamp, and this wireless transmission method comprises at least one in WIFI, bluetooth, zigbee and satellite communication, wherein, when transmit this vibration audio signal taking high voltage power line as transmission medium, transmit this vibration audio signal after treatment by high voltage power line with the form of power line carrier;
Described wireless senser is made up of power supply unit, processing unit, wireless communication unit, magnet ring and magnet ring card, and wherein said power supply unit is used for providing power supply;
Described magnet ring is for receiving treated vibration audio signal and send to processing unit by winding displacement from described collecting cassette;
Described processing unit is for processing this vibration audio signal;
Described processing unit also connects respectively wireless communication unit, wire transmission circuit, for transmitting this vibration audio signal with wireless or wired mode respectively;
Train brush is positioned at the below of high voltage power line, and described magnet ring is installed on the top of high voltage power line in the mode of magnet ring card, and magnet ring connects processing unit by winding displacement, and described processing unit connects respectively high voltage power line, wireless communication unit by wire.
2. railway track real-time monitoring system according to claim 1, it is characterized in that: also comprise the vibrator being arranged on railroad track, wherein said collecting cassette is for sending coded signal to described vibrator, and described vibrator drives railroad track to produce vibration.
3. railway track real-time monitoring system according to claim 1, it is characterized in that: also comprise at least one in Train Control chamber, control room, station and circuit monitoring chamber, wherein said wireless senser is transferred at least one in described Train Control chamber, control room, station and circuit monitoring chamber with wireless or wire transmission mode by vibration audio signal after treatment.
4. railway track real-time monitoring system according to claim 3, is characterized in that: described Train Control chamber gathers the vibration audio signal of 5～10 wireless sensers in train front while adopting wireless transmission method to receive vibration audio signal.
5. railway track real-time monitoring system according to claim 1, is characterized in that: described piezoelectric transducer (1) is arranged on the centre position of railroad track (2) upper rail groove (4).
6. railway track real-time monitoring system according to claim 3, it is characterized in that: described Train Control chamber, control room, station and circuit monitoring chamber are for carrying out transferring to cable network after superencipher to described vibration audio signal, be transferred to higher level's Control Room by described cable network, and this higher level's Control Room transfers to dedicated network after three times are encrypted, and is transferred to monitoring master station by described dedicated network.
7. a data processing method for railway track real-time monitoring system claimed in claim 1, is characterized in that comprising the following steps:
S1, setting are processed the vibration audio signal of wireless senser on a section of railway track track, judge whether whether the vibration audio signal on this section of railway track track has gathered: if gathered, all vibration audio signals are carried out to sampling filter, sequence; If do not gathered, continue to carry out acquisition step;
S2, to sequence after vibration audio signal carry out providing data formatting;
S3, employing adaptive approach are processed the vibration audio signal after format, then are adopted respectively auto-correlation function and cross-correlation function to process;
S4, judge for the result of auto-correlation function whether data exist extremely: if existed extremely, represent that train front may exist static failure, after result that will auto-correlation function is encrypted modulation, send to artificial neural net;
S5, for the result of cross-correlation function, again adopt adaptive approach to process: to disturb repeated execution of steps S2～S5 if the result of this adaptive approach shows between this railroad track and adjacent railroad track to exist;
Do not have interference if the result of this adaptive approach shows between this railroad track and adjacent railroad track, the malfunction coding further comprising according to the result of this adaptive approach judges the fault type of this railroad track: if the fault type of railroad track is the fault that rail equipment and natural cause cause, recording processing result also sends to artificial neural net; If the fault type of railroad track is the fault that human factor causes, records this result and after modulation, send to artificial neural net;
S6, artificial neural net, according to the result receiving, calculate and obtain optimal case;
S7, employing FUZZY ALGORITHMS FOR CONTROL are processed this optimal case, output controlled quentity controlled variable, and showing this controlled quentity controlled variable of screen display: if be level and smooth attenuation curve from the nearly corresponding controlled quentity controlled variable curve of wireless senser extremely far away, represent not have roadblock on this section of railway track track; If represent on this section of railway track track to have roadblock to wireless senser institute far away corresponding controlled quentity controlled variable curve appearance sudden change near, wherein each controlled quentity controlled variable is all corresponding to a malfunction coding.
8. the data processing method of railway track real-time monitoring system according to claim 7, characterized by further comprising the step of determining roadblock type on railroad track:
In the time there is sudden change from the corresponding controlled quentity controlled variable curve of nearly wireless senser institute extremely far away, further check the malfunction coding that sudden change place controlled quentity controlled variable is corresponding, determine roadblock type according to this malfunction coding.
Priority Applications (1)
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