CN103223956A - Device and scaling method for scaling fault position by online vehicle-mounted rail fracture monitoring - Google Patents
Device and scaling method for scaling fault position by online vehicle-mounted rail fracture monitoring Download PDFInfo
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- CN103223956A CN103223956A CN2012105577567A CN201210557756A CN103223956A CN 103223956 A CN103223956 A CN 103223956A CN 2012105577567 A CN2012105577567 A CN 2012105577567A CN 201210557756 A CN201210557756 A CN 201210557756A CN 103223956 A CN103223956 A CN 103223956A
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Abstract
The invention discloses a device and scaling method for scaling a fault position by online vehicle-mounted rail fracture monitoring. On the basis of a rotational speed counting algorithm that a rapid vehicle-mounted and non-contact rail fracture monitoring technology analyzes, diagnoses and separates an information position of a rail fracture in real time, pre-stored site geographic coordinate information containing an accurate kilometer post is established in an online vehicle-mounted rail fracture monitoring host, and a GPS receiver is used for obtaining a current GPS geographic coordinate of a vehicle in a driving process; when the current GPS geographic coordinate accords with the pre-stored site geographic coordinate information and automatic capture of geographical coordinates is achieved, a benchmark of the accurate kilometer post is updated in real time, and rotational speed counting mileage incremental information of the accurate kilometer post and a current position relative accurate kilometer post is added to a fault sample of the rail fracture obtained by diagnosis of the online vehicle-mounted rail fracture monitoring host in real time, so that fault accurate scaling is achieved.
Description
Technical field
What the present invention relates to is a kind of robot scaling equipment and calibrating method, and particularly the position of fault robot scaling equipment and the calibrating method of the installation online steel rail fracture vehicle-carrying monitoring that shows the rail position of fault ON TRAINS belong to the fault diagnosis technology field.
Background technology
(application number 200710034542.0, publication number are CN101264767 to patent of invention " a kind of steel rail fracture vehicle-carrying non-contact fast monitoring technique "; Open day be: on September 17th, 2008) utilize to be installed in the wheel of locomotive or vehicle to the impact that wheel took place of sensor track fracture defect on the axle box to passing through, the impact signal that this sensor obtains is delivered to the rail diagnostic expert system of supervisory control computer after treatment, by it obtaining impact signal is carried out the information that real-time analysis is diagnosed, isolated rail fracture.And the location information of track fracture defect is by the measurement to vehicle wheel rotational speed in " a kind of steel rail fracture vehicle-carrying non-contact fast monitoring technique ", through the corresponding row car kilometer value of computational transformation acquisition.Because the vehicle-bone monitoring device sampling frequency is very high, so can obtain real-time, continuous mileage value; And this mileage value that tests the speed and obtain by wheel can be expressed the truth that the railway line mileage under bend or the gradient situation changes.But this method also has tangible limitation: only just begin to calculate the mileage value when vehicle-bone monitoring device is started working; Calculate the starting point position of mileage value, itself can't determine this method, and that is to say does not have the reference position; In the actual operation of vehicle, the wheel footpath wears away, skids, takes turns the footpath and changes even climate change, all the vehicle wheel rotational speed survey precision is exerted an influence, therefore, rely on this method to calculate mileage fully and determine the rail position of failure point, particularly after long distance, long-time driving, might produce very big accumulated error.Therefore, on the basis of this patented technology, improving calibration technology, is the actual needs of railway line handling labor.
Existing known relevant calibrating method has following three kinds:
Method one, rotating speed count measurement mileage: be to carry out accumulated counts with the impulse singla that wheel produces, calculate actual mileage value according to wheel footpath value then by the tachogen that is installed on the axletree.This scheme has obtained certain effect in rail detects, but does not fit into the rail detection of long distance, and reason is as follows:
A) wheel that provides by measurement directly value itself have error, for example,,, will cause the wheel circumference error of about 1.6mm if there is the wheel footpath error of 0.5mm for the wheel of nominal diameter D=1.25m, promptly wheel whenever turns around, and can cause the error of 1.6mm.Suppose that the running distance that rail detects is 50km, wheel circumference is D* π=3.927m.In the driving of 50km, wheel need rotate 12732 circles, if every circle error is 1.6mm, behind the 50km that then drives a vehicle, amounts to error and has reached 204m.If running distance continues lengthening, error can add up gradually, can't reach the purpose of trouble point calibration.
B) Yi Shang argumentation only is an ideal situation, in the reality driving, the wheel footpath wears away, skids even climate change, all the precision of measuring mileage according to vehicle wheel rotational speed is exerted an influence, rely on this method to calculate mileage fully and determine the rail position of failure point, after particularly long distance, the long-time driving, might produce very big accumulated error.
C) locomotive is in car depot or the subordinate line highway section of non-requirement monitoring when travelling, mileage value with the rotating speed count measurement adds up, but kilometer post still is defaulted as this car depot's fixed value, after motor supply shop's section of rolling away from, the mileage that travels has been added in the count value behind this section kilometer post in the section, so that car has been when just having crossed kilometer post, rotating speed count measurement mileage head and shoulders above actual kilometer post position, can't judge the problem of fault rail thereby cause in the definite position of main track.
Method two, the signal calibration: the railway system has had inner stake of calibration road and the rate-aided signal system that uses of a cover.Important main line of railway or lorry are with the signal system that independently indicates kilometer post of heavy-haul line, be by laying the signal of some along the line at the railway in these highway sections, to targeted messages such as passing locomotive or vehicle transmitting line kilometer post, Station XXX, signal numberings.If rely on this method to obtain the mileage coordinate (that is: kilometer post) of the railway line of generation rail fracture, limitation is:
A) the real-time mileage coordinate of locomotive or vehicle is to supply with locomotive or vehicle control system use specially, and other system generally can't obtain this information, or can't obtain this information for a long time.Particularly, because obtaining the communication of this information need reply mutually, then when preventing from other system and communicating by letter of signal influenced the rolling stock control system and do not allow other system to use simultaneously with communicating by letter of signal, can not be so that be installed in " online steel rail fracture vehicle-carrying monitoring " system of same rolling stock by the signal acquired information with control system.Do not allow the other system picked up signal machine information of communicating by letter with locomotive control in addition owing to must guarantee the safety of locomotive control, all be limited so in normally driving a vehicle, obtain all approach of signal information.
B) only just may obtain this rate-aided signal at the ad-hoc location by signal, and the setting of signal is limited, seldom is provided with at non-emphasis part of path, particularly, it is minimum just just in time the probability of signal being arranged in the position that rail fracture takes place.
Therefore the calibration that can not directly monitor of this method for rail fracture.
Method three, the GPS position fixing system: gps system is a high precision, round-the-clock and global radio navigation, location and timer-operated multifunction system.When being used for vehicle location by the GPS positioning system terminal of hardware and software formation is loaded on the vehicle, be called the vehicle GPS position fixing system, in road vehicle, adopted in a large number, utilize GPS and electronic chart can demonstrate the actual position of vehicle in real time, or be the trip route guidance.
The GPS technology also begins to find application in the railway system, and for example locomotive or vehicle dispatch system utilize the GPS technology to grasp the run location of locomotive or vehicle; Voice suggestion of railway road conditions and monitored control system based on the GPS location; Precognition system etc. is monitored at railway locomotive road junction based on the GPS location.Its basic application mode is also identical with the road vehicle application mode: utilize GPS and electronic chart to show in real time, add other prompting instruments such as voice suggestion.
Above GPS technology is if be applied to rail fracture monitoring calibration, and limitation is:
A) there is the discontinuous problem of signal in gps signal in the railway system, such as in the tunnel.
B) satellite transit track, weather conditions, environment for use etc. influence the signal accuracy of GPS.
C) the railway kilometer post changes and changes along with trackage, and for bend, what gps coordinate calculated is straight-line distance, and therefore non-actual mileage exists error.
D) vehicle operating exists uplink and down-line simultaneously in same gps coordinate position (in the 5m scope), and the actual kilometer post of two circuits is also inconsistent, and GPS can't distinguish.
Therefore, break through the station-keeping mode of existing this electronic chart mode, exploitation GPS technology is in the new application of the railway system, such as, combine with in-vehicle railway diagnostic system, in real time fail point location or correction position error, play a role, still untapped problem.
Therefore, above-mentioned several prior aries all can not directly satisfy the calibration needs that rail fracture is monitored.
Except that known method, a kind of " application of gps satellite position fixing system in the mileage of track inspection car corrective system " technology is arranged, this technology stores in the system database by the mileage location information that will need in advance to proofread and correct, checking system compares the record in Current GPS locating information and the data bank in real time, meet if find, just the pairing circuit mileage information of the data in this data bank is sent to checking system, this is certain mileage position for a mark, finishes mileage and proofreaies and correct.
There is following defective in this technology:
Predetermined GPS point is not demarcated.
Parallel or when intersecting when two circuits, can send GPS point on the nearby lines, judge by accident and be the GPS check point on the current circuit, cause the up-downgoing kilometer post to obscure.
This technology only adapts to the track inspection car of driving at a slow speed, can't carry out rail fracture on normal locomotive of driving a vehicle or vehicle and detect.Because locomotive or vehicle often exist the data of crossing over twice GPS reception before and after the data logging point all to be different from the registration point data in the data bank and situation about can not judge in actual high speed traveling, promptly have the leak source phenomenon.For example: the gps coordinate that locomotive or vehicle dynamically obtained through time before or after the website A that prestores for (X1, Y1), in the data bank prestore website A coordinate for (X0, Y0).Surpass (error limit of GPS regulation) 1m if both coordinates differ, judge that then geographic coordinates does not meet, can't realize the mileage correction.
Summary of the invention
Technical matters to be solved by this invention is that at the prior art deficiency, the position of fault robot scaling equipment and the calibrating method that provide a kind of online steel rail fracture vehicle-carrying to monitor are accurately judged the rail position of fault.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of position of fault robot scaling equipment of online steel rail fracture vehicle-carrying monitoring, comprise data trap, GPS receiver, wheel-rail impact message handler, rolling stock tachogen, and online steel rail fracture vehicle-carrying monitoring main frame, described GPS receiver, data acquisition unit, online steel rail fracture vehicle-carrying monitoring main frame connect successively, and described wheel-rail impact message handler, rolling stock tachogen all insert described data trap.
The position of fault robot scaling equipment of online steel rail fracture vehicle-carrying monitoring comprises data trap, the GPS receiver, wheel-rail impact message handler and rolling stock tachogen and online steel rail fracture vehicle-carrying monitoring main frame, obtain the geographic coordinates information of GPS receiver in real time with data trap, the failure message of wheel-rail impact message handler, the wheel that the rolling stock tachogen transmits is to rotational speed pulse signal, above three kinds of information are passed through to analyze, conversion, form the rail data diagnosis sample that has kilometer post, be sent to " online steel rail fracture vehicle-carrying monitoring main frame; monitor the main frame real-time diagnosis by online steel rail fracture vehicle-carrying, provide the position of fault coordinate information of rail fracture warning place by the RS485 interface.
The position of fault calibrating method of online steel rail fracture vehicle-carrying monitoring is:
1) online steel rail fracture vehicle-carrying monitoring main frame is demarcated predetermined GPS point, sets up all website geographic coordinates information sets that prestore;
2) set up the automatic catch mechanism of geographic coordinates, when driving promptly, obtain vehicle Current GPS geographic coordinates with the GPS receiver, send to data trap, data trap sends to this information in the online steel rail fracture vehicle-carrying monitoring device main frame, compare one by one with the geographic coordinates information of storing in the website geographic coordinates information sets that prestores, when meeting, certain geographical coordinate information of storing in the Current GPS geographic coordinates and the website geographic coordinates information sets that prestores realizes catching, then take out the kilometer post in the cooresponding website geographic coordinates information that prestores of this website, the accurate kilometer post Reference data that real-time update current line car test location is put;
3) the accurate kilometer post that takes out the described website geographic coordinates information sets that prestores is as benchmark, and rotating speed counted meter calculate the return-to-zero of resulting mileage value;
4) begin to carry out with described accurate kilometer be designated as Reference data, be that the real-time mileage of incremental data is measured to calculate resulting mileage at the rotating speed counting meter of the rolling stock tachogen transmission of described accurate kilometer post return-to-zero; Wherein said accurate kilometer post is a starting point;
5) described Reference data and incremental data are sent to online steel rail fracture vehicle-carrying monitoring main frame.
Predetermined GPS point is demarcated, set up the website geographic coordinates information that prestores and be achieved in that on the Monitoring Line of determining, " building mark drives a vehicle " of realizing prestoring website geographic coordinates information with driving first.For example, the scheme that employing is stopped is at interval determined N point as required on a circuit, car travels to each some parking, by locomotive or vehicle CTCS system (the common monitoring system of forming of vehicle control syetem and rail limit signal), obtain " the accurately kilometer post " of this point; Write down simultaneously the gps coordinate of this point, realized the demarcation that predetermined GPS is ordered with the repeated measurement and the mode of averaging; " accurately kilometer post " information and gps coordinate are monitored main frame by sending and be stored in online steel rail fracture vehicle-carrying.Cross whole process up to locomotive or vehicle successively, obtain and this N gps coordinate and actual kilometer post corresponding data group of putting of storage in online steel rail fracture vehicle-carrying monitoring main frame.This N that this method will be stored the cooresponding DS Data Set of point is called the website geographic coordinates information sets that prestores.This is built the mark driving and also can realize in normal (not stopping at each point) driving.
The method for building up of website geographic coordinates of prestoring is as follows:
The distance travelled number of supposing Monitoring Line is L[m], the vehicle wheel that is used to measure vehicle wheel rotational speed directly be worth be D[m], wheel footpath error is d[m], the station spacing of the website that prestores is y.The accuracy of positioning error that requires is W0＜1[m].The station spacing S0 of website of then prestoring is calculated as follows:
Wheel whenever turns around, the error of generation: W1=π d[m].
Behind the operation ym, wheel footpath value is D[m] number of revolutions of wheel is: NY=y/ π D.
Behind the operation ym, the actual error that produces is W=NY*W1=(y/π D) * π d [m].
Require accuracy of positioning error W0＜1[m], W=(y/π D then) * π d＜W0=1, draw y＜D/d[m], the station spacing of the website that therefore prestores is S0=y＜D/d[m].
For example: wheel footpath value is D[m]=1.25[m], wheel footpath error is d[m]=0.0005[m], the station spacing of the website that then prestores is S0=D/d[m]=2500[m].Every L=100km circuit need be set up N=L/S0=40 " website geographic coordinates information prestores ".
Set up the automatic catch mechanism of geographic coordinates, when driving promptly, the GPS receiver obtains vehicle " Current GPS geographic coordinates ", send to data trap, data trap sends to this information and " in the online steel rail fracture vehicle-carrying monitoring device main frame; compare one by one with the geographic coordinates information of storing in the website geographic coordinates information sets that prestores; realize during the geographic coordinates information conforms of storing catching, takes out " accurately kilometer post " benchmark that the kilometer post in the cooresponding website geographic coordinates information that prestores of this website goes real-time update current line car test location to put then in " Current GPS geographic coordinates " and certain prestore website geographic coordinates information.
Online steel rail fracture vehicle-carrying monitoring robot scaling equipment is worked when driving, constantly obtain locomotive or vehicle " Current GPS geographic coordinates " with the GPS receiver, send to data trap, data trap sends to this information in the online steel rail fracture vehicle-carrying monitoring device main frame, online steel rail fracture vehicle-carrying monitoring main frame compares this GPS geographic coordinates and each " website geographic coordinates information prestores " of " website geographic coordinates information sets prestores " middle storage one by one, " website geographic coordinates information prestores " of " Current GPS geographic coordinates " and certain point when meeting, take out " the accurately kilometer post " that be somebody's turn to do " website geographic coordinates information prestores " and calculate the return-to-zero of resulting mileage value as benchmark and to rotating speed counting meter, beginning to carry out with this " accurately kilometer post " (being starting point) is Reference data, to calculate resulting mileage at the rotating speed counting meter of the rolling stock tachogen transmission of this return-to-zero is that the real-time mileage of incremental data is measured, and this Reference data and incremental data are sent to online steel rail fracture vehicle-carrying monitoring device.
In order to prevent in locomotive or the vehicle ', because self there is error in the GPS receiver, or/and because high vehicle speeds, through a certain website the time, different " GPS geographic coordinates " value that produces, can't realize the phenomenon that geographic coordinates is caught automatically with " website geographic coordinates information prestores ", the described automatic catch mechanism of geographic coordinates of setting up, setting up with each " website geographic coordinates information prestores " in real time is the center of circle, make interval circle with interval radius of circle r, judge whether " Current GPS geographic coordinates " drops in this interval circle, if in the circle of interval, " website geographic coordinates information prestores " that is judged to be " Current GPS geographic coordinates " and certain point meets and realizes catching, if not in the circle of interval, " website geographic coordinates information prestores " that then be judged to be " Current GPS geographic coordinates " and certain point do not meet and do not realize catching.
For example: if locomotive or vehicle be through before or after certain website A that prestores the time, the gps coordinate that dynamically obtains for twice for (X1, Y1), and the geographic coordinates of the website A that prestores for (X0, Y0).If ((X1-X0) 2+ (Y1-Y0) 2) 0.5 surpasses 1mm, judge that then geographic coordinates does not meet, can not realize that geographic coordinates catches automatically, and cause to upgrade " accurately kilometer post " thus, can not count meter to rotating speed and calculate the return-to-zero of resulting mileage value, cause the calibration mistake.
The embodiment of the automatic catch mechanism of design-calculated geographic coordinates is as follows in order to overcome the above problems:
A) be the center of circle with the website geographic coordinates that prestores, make interval circle with interval radius of circle r.
In locomotive or the vehicle ', the geographic coordinates that Current GPS is obtained in real time calculates, and judges whether it drops in this interval circle, if in the circle of interval, " website geographic coordinates information prestores " that be judged as " Current GPS geographic coordinates " and certain point meets, and the realization geographic coordinates is caught automatically; If in this interval circle, " website geographic coordinates information prestores " that then be judged as " Current GPS geographic coordinates " and certain point do not meet.As shown in Figure 2, A is for meeting, and B is not for meeting.A, B are the geographic coordinates that GPS obtains in real time among Fig. 2; C is the geographic coordinates of website of prestoring.
In order to guarantee that under various rigor condition geographic coordinates catches 100% success automatically, need be according to vehicle velocity V [km/h], GPS receiver location cycle of operations T[s] and GPS error W[m] calculate interval radius of a circle r[m in the accompanying drawing 2 in real time] reasonable numerical value.
Setting GPS receiver location cycle of operations is T=0.2[s], establishing the speed of a motor vehicle of travelling is V[km/h], GPS self error is W=1[m], require in the operational process, geographic coordinates is captured as power 100% automatically, and then interval radius of circle r calculates as follows:
Interval circular diameter: 2r[m];
Speed of operation: V/3.6[m/s];
In cycle of operations T, the maximum operating range of locomotive or vehicle: S=T*V/3.6 [m];
Only at the maximum operating range S of locomotive or vehicle during, can guarantee that just geographic coordinates catches 100% success automatically smaller or equal to interval circular diameter 2r.
2r 〉=S=T*V/3.6 [m] is then arranged, draw r 〉=S/2=T*V/7.2 [m].
Owing to also need consider GPS self error limit W [m], the interval radius of circle in the automatic catch mechanism of geographic coordinates is then arranged:
r≥?T*V/7.2+W?[m]
For example:
Locomotive or vehicle ' speed per hour are 100km/h, then r 〉=T*V/7.2+W=3.778m.
Locomotive or vehicle F-Zero are 300km/h, then r 〉=T*V/7.2+W=9.333m.
By " direction of traffic judgement " and " the uplink and downlink circuit must cannot not have parallelly or the judgement of Uncrossed coordinate at initiating terminal " foundation " uplink and downlink line characteristics sign ", corresponding " uplink and downlink line characteristics sign " sets up different " website geographic coordinates information prestores " groups respectively; And when the same gps coordinate point of locomotive, vehicle parallel or cross link, take different " website geographic coordinates information prestores " groups according to " uplink and downlink line characteristics sign " and participate in relatively and generate different " accurate kilometer post " benchmark by two.
The same website geographic coordinates that prestores, there are two steel rail lines,, a uplink,, a downlink, article two, the cooresponding GPS geographic coordinates of circuit much at one, but kilometer post is different, especially problem is more outstanding under the automatic catch mechanism of geographic coordinates, can 1 be uplink wherein from accompanying drawing 3(, 2 be downlink) find out.Locomotive or vehicle operating are when the X point, and be up, descending under automatic catch mechanism, the geographic coordinates unanimity, but there is notable difference in kilometer post, last behavior 60, and descending but is 30.
Therefore, be necessary that the circuit by following two condition judgment locomotives or vehicle place is to go up or down-line immediately when locomotive or vehicle sail out of the terminal station and just started operation.
Condition 1: select for use the binary channel tachogen to carry out direction of traffic identification, wherein apart the fifth wheel number of teeth is a non-integer between 1 passage sensing head and the 2 passage sensing heads, for example differ integer and add 1/4th teeth, can be poor according to binary channel waveform phase in service, judge locomotive or vehicle direct of travel, go up or down-line thereby definite locomotive or vehicle are present, as accompanying drawing 4(1 is uplink wherein, 2 is downlink, 3 represented that this coordinate was defined as uplink, 4 represented that this coordinate was defined as down-line) shown in: the cycle of tacho-pulse is T when establishing driving, when then forward is driven a vehicle, jumps in the pulse of passage 1 along jump the leading T/4 in edge than going up of passage 2; And during train running in reverse direction, jump in the pulse of passage 1 along jumping along hysteresis T/4 than going up of passage 2; Thereby can be according to passage 1 with respect to the leading of passage 2 pulse patterns or lag behind driving of judgement forward or train running in reverse direction.
Condition 2: station, uplink and downlink line terminal go out that site location cannot not certainly exist parallelly or Uncrossed track, and certainly exist on this track respectively that automatic catch mechanism is discernmible, point beyond the website prestores, selected this respectively this point coordinate determine that as basis for estimation locomotive, the residing circuit of vehicle are to go up or down-line.As shown in Figure 5.
Two conditions satisfy simultaneously, determine the uplink and downlink circuit of locomotive or vehicle operating.When the geographic coordinates that carries out online steel rail fracture vehicle-carrying monitoring at locomotive or vehicle is caught automatically, declare the uplink and downlink circuit earlier, set up Reference data again.
Compared with prior art, the beneficial effect that the present invention had is: the position of fault robot scaling equipment of online steel rail fracture vehicle-carrying monitoring of the present invention and calibrating method have solved and carried out the problem of rail fault detection to fault coordinate precise calibration in high speed travelings, the geographic coordinates location that both can be used for rail fault detection of dynamic, also can be used for other need be designated as the accurate location of reference with the railway kilometer to rolling stock geographic coordinates of living in, and succeeds in test.
Description of drawings
Fig. 1 is that the online steel rail fracture vehicle-carrying of one embodiment of the invention detects the robot scaling equipment structured flowchart;
Fig. 2 catches scheme drawing automatically for geographic coordinates;
Fig. 3 is up-downgoing channel kilometer mark Discrepancy Description figure;
Fig. 4 is a binary channel tachogen pulse output scheme drawing;
Fig. 5 is for to determine the uplink and downlink conspectus by the coordinate mode;
Fig. 6 accurately calibrates scheme drawing for the kilometer post in the fault sample;
Fig. 7 is the calibration flow process of the online steel rail fracture vehicle-carrying monitoring of one embodiment of the invention robot scaling equipment;
Fig. 8 is provided with scheme drawing for prestore website geographic coordinates and kilometer post;
Fig. 9 is that certain railway " website geographic coordinates information sets prestores " is set up procedure chart;
Figure 10 is certain railway track monitoring calibration scheme drawing.
The specific embodiment
As shown in Figure 1, the online steel rail fracture vehicle-carrying of one embodiment of the invention detects robot scaling equipment and comprises data trap, GPS receiver, wheel-rail impact message handler, rolling stock tachogen, and online steel rail fracture vehicle-carrying monitoring main frame, described GPS receiver, data acquisition unit, online steel rail fracture vehicle-carrying monitoring main frame connect successively, and described wheel-rail impact message handler, rolling stock tachogen all insert described data trap.
Online steel rail fracture vehicle-carrying detects the product type of robot scaling equipment:
1) data trap: JK08451-SCQ
2) GPS receiver: Newstart 220E
3) wheel-rail impact message handler: JK08451-XHFLQ
4) rolling stock tachogen: NGTQG16
5) online steel rail fracture vehicle-carrying monitoring main frame: JK08451-HST
The position of fault calibrating method of online steel rail fracture vehicle-carrying monitoring is:
1) in the online steel rail fracture vehicle-carrying monitoring main frame predetermined GPS point is demarcated, set up all website geographic coordinates information sets that prestore;
2) set up the automatic catch mechanism of geographic coordinates, when driving promptly, obtain vehicle Current GPS geographic coordinates with the GPS receiver, send to data trap, data trap sends to this information in the online steel rail fracture vehicle-carrying monitoring device main frame, compare one by one with the geographic coordinates information of storing in the website geographic coordinates information sets that prestores, when meeting, certain geographical coordinate information of storing in the Current GPS geographic coordinates and the website geographic coordinates information sets that prestores realizes catching, then take out the kilometer post in the cooresponding website geographic coordinates information that prestores of this website, the accurate kilometer post Reference data that real-time update current line car test location is put;
3) the accurate kilometer post that takes out the described website geographic coordinates information sets that prestores is as benchmark, and rotating speed counted meter calculate the return-to-zero of resulting mileage value;
4) begin to carry out with described accurate kilometer be designated as Reference data, be that the real-time mileage of incremental data is measured to calculate resulting mileage at the rotating speed counting meter of the rolling stock tachogen transmission of described accurate kilometer punctuate return-to-zero; Wherein said accurate kilometer post is a starting point;
5) described accurate kilometer post is sent to online steel rail fracture vehicle-carrying monitoring main frame.This Reference data and incremental data are sent to online steel rail fracture vehicle-carrying monitoring main frame.
Described step 2) in, realize when certain geographical coordinate information of storing in the Current GPS geographic coordinates and the website geographic coordinates information sets that prestores meets that the process of catching is: website geographic coordinates information is the center of circle respectively to prestore, make interval circle with interval radius of circle r, judge whether the Current GPS geographic coordinates drops in this interval circle, if in the circle of interval, be judged to be Current GPS geographic coordinates and the prestoring website geographic coordinates information conforms of certain point and realize catching, if in the circle of interval, the website geographic coordinates information that prestores that then is judged to be Current GPS geographic coordinates and certain point does not meet and does not realize catching.
Described step 2) in, the process of the accurate kilometer post Reference data that real-time update current line car test location is put is: judge that the railroad section is up or descending, judge that direction of traffic and uplink and downlink circuit must cannot not have parallelly or the characteristics of Uncrossed coordinate at initiating terminal, set up " uplink and downlink line characteristics sign ", corresponding " uplink and downlink line characteristics sign " sets up different " website geographic coordinates information prestores " groups respectively; And when the same gps coordinate point of locomotive or vehicle parallel or cross link, take different " website geographic coordinates information prestores " groups according to " uplink and downlink line characteristics sign " by two, participate in relatively and generate different " accurate kilometer post " benchmark.
Online steel rail fracture vehicle-carrying monitoring device is when obtaining rail and detect sample, and Reference data and incremental data that the real-time mileage that this sample is set up when beginning to gather this sample is measured are deposited in the rail monitoring data sample.
Online steel rail fracture vehicle-carrying monitoring device main frame is during to the real-time diagnosis of rail monitoring data sample, distance D L when calculating rail fracture place distance fault sample and begin with the tacho-pulse scale of notation, Reference data and incremental data addition that the real-time mileage of setting up when beginning to gather this sample is measured realize the precise calibration at fault place.
The position of fault kilometer post (km) of rail fracture warning place=Reference data (km)+incremental data (km)+rail fracture place to fault sample begins distance D L(km).
The sample analysis process as shown in Figure 6.
The rail position of fault is calibrated treatment scheme as shown in Figure 7:
A) " website geographic coordinates information sets prestores " enters flow process " the automatic match mechanism of geographic coordinates ";
B) " receiving satellite certificate " resolves conversion to data, obtains " Current GPS geographic coordinates ", enters flow process " the automatic match mechanism of geographic coordinates ";
C) " the automatic match mechanism of geographic coordinates " enters flow process and " meets judgement ", and the website geographic coordinates information that respectively prestores of storage in " Current GPS geographic coordinates " and " website geographic coordinates information sets prestores " is compared one by one;
D) result that " meets judgement " is for being, prove that this place " Current GPS geographic coordinates " is consistent with certain website geographic coordinates information that prestores of storage in " website geographic coordinates information sets prestores ", enter " judging the railroad section; upstream or downstream ", after determining the railroad section, " take out this interval cooresponding kilometer post of website geographic coordinates that prestores, set up Reference data ";
After " taking out this interval cooresponding kilometer post of website geographic coordinates that prestores; set up Reference data ", enter flow process " mileage return-to-zero; " with the real-time mileage of Reference data assignment, " normal driving; the mileage of calculating gained with rotating speed counting meter is an incremental data " at this moment, basic data and incremental data addition " are set up accurate kilometer post ", last " sending to online steel rail fracture vehicle-carrying monitoring device ".
On the Monitoring Line of determining, " the building the mark driving " of realizing prestoring website geographic coordinates information with driving first.Locomotive or vehicle are driven a vehicle first and are stopped in the position that is designated as " 0 " at kilometer, and this moment, the GPS receiver obtained vehicle " Current GPS geographic coordinates ", sent to data trap, and data trap sends to online steel rail fracture vehicle-carrying monitoring device main frame with this information.Press " website 1 " on the online steel rail fracture vehicle-carrying monitoring host panel this moment, this GPS geographic coordinates is saved in online steel rail fracture vehicle-carrying monitoring main frame.By locomotive or vehicle CTCS system (the common monitoring system of forming of vehicle control syetem and rail limit signal), obtain this point " accurately kilometer post " simultaneously, this " accurately kilometer post " inputed to " website 1 ".Generate " the GPS geographic coordinates " and " accurately kilometer post " corresponding relation (as shown in Figure 8) of " website 1 ".
After record was finished, locomotive or vehicle continued operation, range ability S0=y＜D/d[m] (y: the station spacing of the website that prestores; D: the vehicle wheel of measuring vehicle wheel rotational speed directly is worth; D: wheel footpath error; ) after, stopping once more, the website 2 in pressing shown in the accompanying drawing 8 simultaneously by locomotive or vehicle CTCS system, generates " the GPS geographic coordinates " and " accurately kilometer post " corresponding relation of " website 2 ".
Successively behind the range ability S＜S0=D/d of interval, stop,, generate " the GPS geographic coordinates " and " accurately kilometer post " corresponding relation of " website N " respectively according to aforesaid operations, finish up to the operation of system-wide section, " website geographic coordinates information sets prestores " sets up fully at this moment.
For example:
With certain railway is example, at first determines the monitoring route, is example with the uplink, various situations such as operation in the section of existing, Monitoring Line operation, tunnel operation in the whole piece circuit, for guaranteeing the correct information of " website geographic coordinates information sets prestores ", in assignment procedure, need avoid above disturbing factor.Embodiment as shown in Figure 9.
Kilometer post is from south, 0(pond 8 in the accompanying drawing 9) through 6 to 540(harbours 7, peaceful north) non-section in circulation line be rail monitoring highway section, the spacing distance of S1 and S2, S0=y＜D/d[m].The website setting process that prestores is as follows:
A) setting earlier kilometer and be designated as 0 position and be first website that prestores, confirm to begin from here, is that rail is monitored the highway section.
B), set S1, S2 successively along with locomotive or vehicle operating ... Sx ... Sn.
C) being provided with of each website all avoids between Close Tunnel 5.
D) locomotive or vehicle traffic coverage in section is the subordinate line highway section of non-requirement monitoring, and kilometer post does not change, therefore (illustrating peaceful northern station and station, harbour) two " website geographic coordinates information prestores " all corresponding same kilometer post numerical value before and after the section of going into.
Set up down-line " website geographic coordinates information sets prestores " with identical method.
As shown in Figure 10, the rail monitoring scaling step in the normal driving is as follows:
A) behind locomotive or the vehicle launch, operation in the starting stage section of being, by " direction of traffic judgement " and " the uplink and downlink circuit must cannot not have parallelly or the judgement of Uncrossed coordinate at initiating terminal " foundation " uplink and downlink line characteristics sign ", corresponding " uplink and downlink line characteristics sign " sets up different " website geographic coordinates information prestores " groups respectively; And when the same gps coordinate point of locomotive or vehicle parallel or cross link by two, take different " website geographic coordinates information prestores " groups according to " uplink and downlink line characteristics sign " and participate in relatively and generate different " accurately kilometer post " benchmark, can determine it is uplink.
B) operation in the section by the mode of rotating speed counting meter calculation gained mileage, is set up incremental data, and when arriving A, incremental data is k1, and the mileage value is k1.
C) moment after the section of going out, locomotive or vehicle arrive the website S0 place that prestores, and obtain " Current GPS geographic coordinates " in real time, by the automatic catch mechanism of geographic coordinates, set up Reference data: 0km rapidly, upgrade mileage, set up accurate kilometer post.
D) the real-time mileage measurement that resulting mileage is an incremental data is calculated by rotating speed counting meter in S0 to S1 highway section, and this moment, the Reference data with the S0 website constituted real-time accurate kilometer post.
E) locomotive or vehicle arrive the website S1 place that prestores, and obtain " Current GPS geographic coordinates " in real time, by the automatic catch mechanism of geographic coordinates, set up Reference data: 1.2km rapidly, upgrade mileage, set up accurate kilometer post.
F) move S in the figure successively with this pattern
X-1During the place, the kilometer post of setting up in the circuit before can assert is consistent with actual kilometer post, realizes rail monitoring calibration.
G) arrive S
X-1The place, locomotive or vehicle have entered peaceful northern station, operation in the beginning section, this moment, the rotating speed count measurement still carried out, and incremental data adds up, when arriving the B place, mileage value 406.43km+k2, but actual kilometer post does not change for operation kilometer post in the 406.43(section), circuit is the subordinate line highway section of non-requirement monitoring in the section, allows the K2 error of this moment.
H) after operation is finished in locomotive or the car depot, arrive S
XThe place obtains " Current GPS geographic coordinates " in real time, by the automatic catch mechanism of geographic coordinates, sets up Reference data: 406.43km rapidly, upgrades mileage, sets up accurate kilometer post, and this moment, the kilometer post of foundation was consistent with actual kilometer post for Monitoring Line.
I) until locomotive or the vehicle harbour of reaching terminal, kilometer is designated as 540km place, and this circuit requires the positive part of path of monitoring to finish, and removes " the subordinate line highway section that non-requirement is monitored ", and the precise calibration that online rail is monitored all can be realized in each position.
Among Figure 10, the S0 site information that prestored, S0=kilometer post 0; The tunnel is avoided in the setting of S3 and S4; The tunnel is avoided in the setting of S6 and S7; S
XWith S
X-1Be peaceful northern kilometer post, S
X=S
X-1=406.3; S
N-1With S
nBe terminal point harbour kilometer post, S
N-1=S
n=540.
Claims (4)
1. the position of fault robot scaling equipment of an online steel rail fracture vehicle-carrying monitoring, it is characterized in that, comprise data trap, GPS receiver, wheel-rail impact message handler, rolling stock tachogen, and online steel rail fracture vehicle-carrying monitoring main frame, described GPS receiver, data acquisition unit, online steel rail fracture vehicle-carrying monitoring main frame connect successively, and described wheel-rail impact message handler, rolling stock tachogen all insert described data trap.
2. the position of fault calibrating method of an online steel rail fracture vehicle-carrying monitoring is characterized in that this method is:
1) online steel rail fracture vehicle-carrying monitoring main frame is demarcated predetermined GPS point, sets up all website geographic coordinates information sets that prestore;
2) set up the automatic catch mechanism of geographic coordinates, when driving promptly, obtain vehicle Current GPS geographic coordinates with the GPS receiver, send to data trap, data trap sends to this information in the online steel rail fracture vehicle-carrying monitoring device main frame, compare one by one with the geographic coordinates information of storing in the website geographic coordinates information sets that prestores, when meeting, certain geographical coordinate information of storing in the Current GPS geographic coordinates and the website geographic coordinates information sets that prestores realizes catching, then take out the kilometer post in the cooresponding website geographic coordinates information that prestores of this website, the accurate kilometer post Reference data that real-time update current line car test location is put;
3) the accurate kilometer post that takes out the described website geographic coordinates information sets that prestores is as benchmark, and rotating speed counted meter calculate back resulting mileage value return-to-zero;
4) begin to carry out with described accurate kilometer be designated as Reference data, be that the real-time mileage of incremental data is measured to calculate resulting mileage at the rotating speed counting meter of the rolling stock tachogen transmission of described accurate kilometer post return-to-zero; Wherein said accurate kilometer post is a starting point;
5) described Reference data and incremental data are sent to online steel rail fracture vehicle-carrying monitoring main frame.
3. the position of fault robot scaling equipment of online steel rail fracture vehicle-carrying monitoring according to claim 1, it is characterized in that, described step 2) in, realize when certain geographical coordinate information of storing in the Current GPS geographic coordinates and the website geographic coordinates information sets that prestores meets that the process of catching is: website geographic coordinates information is the center of circle respectively to prestore, make interval circle with interval radius of circle r, judge whether the Current GPS geographic coordinates drops in this interval circle, if in the circle of interval, be judged to be Current GPS geographic coordinates and the prestoring website geographic coordinates information conforms of certain point and realize catching, if in the circle of interval, the website geographic coordinates information that prestores that then is judged to be Current GPS geographic coordinates and certain point does not meet and does not realize catching.
4. the position of fault robot scaling equipment of online steel rail fracture vehicle-carrying monitoring according to claim 1, it is characterized in that, described step 2) in, the process of the accurate kilometer post Reference data that real-time update current line car test location is put is: judge that the railroad section is up or descending, judge that direction of traffic and uplink and downlink circuit must cannot not have parallelly or the characteristics of Uncrossed coordinate at initiating terminal, set up " uplink and downlink line characteristics sign ", corresponding " uplink and downlink line characteristics sign " sets up different " website geographic coordinates information prestores " groups respectively; And when the same gps coordinate point of locomotive or vehicle parallel or cross link, take different " website geographic coordinates information prestores " groups according to " uplink and downlink line characteristics sign " by two, participate in relatively and generate different " accurate kilometer post " benchmark.
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Effective date of registration: 20171129 Address after: 100097 Beijing agriculture science building B801, No. 11, middle road of Dawning garden, Haidian District, Beijing Patentee after: Beijing Tanzhi Science & Technology Development Co., Ltd. Address before: 100011 Beijing City, Chaoyang District Guangshun Beidajie 33 the Atlantic metro area A 102-2-3A Patentee before: Tang Deyao |