CN202703632U - Railway maintenance operation safety pre-warning system - Google Patents
Railway maintenance operation safety pre-warning system Download PDFInfo
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- CN202703632U CN202703632U CN 201220229092 CN201220229092U CN202703632U CN 202703632 U CN202703632 U CN 202703632U CN 201220229092 CN201220229092 CN 201220229092 CN 201220229092 U CN201220229092 U CN 201220229092U CN 202703632 U CN202703632 U CN 202703632U
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Abstract
The utility model discloses a railway maintenance operation safety pre-warning system. An image acquisition unit acquires image information on a field operation site; a calculation control unit processes the image information acquired by the image acquisition unit, and performs matching calculation to railway line facility templates in the computing control unit to determine the types of a facility; the calculation control unit calculates an actual physical distance between the railway line facility and the image acquisition unit, and sends warning and safety-action triggering information based both on the actual physical distance between the railway line facility and the image acquisition unit, and a warning and safety-action triggering distance of the corresponding railway line facility; and a user interface unit displays the information in the calculation control unit, and sets parameters for the calculation control unit. According to the system, intelligent identification and avoidance to the railway line facility are realized, and a user can set construction safety threshold parameters according to a vehicle type of a large-scale maintenance machine, thereby enabling the system to be excellent in adaptability.
Description
Technical field
The utility model relates to a kind of job safety forewarn system, especially relates to a kind of job safety forewarn system that is applied in railway line maintenance and the maintain road process.
Background technology
There is the phenomenon that transfinites in this to railway line maintenance machinery---large-scale maintenance machinery in work progress from taking turns running device (mainly being to join tiny fragments of stone, coal, etc. car and cleaning car) Working mechanism.And in practice of construction safety management process, what adopt now is that operating personal manual observation ensures construction safety.In work progress in the past, the operating personal burnout repeatedly occurs, and cause comparatively serious line facility safety misadventure; As: join tiny fragments of stone, coal, etc. car and sever the accidents such as contact system electric pole.The maintenance of track security relationship is to operation safety and the reliability of railway line, railway unit strictly regulates inspection to safety in production and safe construction, higher in the urgent need to degree of automation, the better construction safety ensuring equipment of safety and stability is guaranteed the safety of railway operation circuit, workmen and equipment.
Machine vision refers to by the camera acquisition digital image, some feature of the digital image that gathers analyzed again, and calculates and the method for pattern-recognition.In the practice of construction safety management process of present domestic large-scale maintenance machinery, what mainly adopt is the artificial security monitoring of operating personal, manual observation ensures construction safety, the construction operation personnel increase on the one hand, and maintenance cost increases, on the other hand, manual observation relies on personnel's sense of responsibility, when maintenance task was heavy, the easy burnout carelessness of personnel very easily caused accident.Simultaneously, the distance measurement sensor of single direction can not satisfy polarizers of big angle scope and measure needs, only can measure the obstacle distance of certain a part of specified angle position.
In the middle of prior art, by the Beijing Longda Science and Technology Development Co., Ltd, Lu Yiqun and Gao Chunlei were in application on 09 05th, 2006, and open on 09 12nd, 2007, publication number is the obstacle avoidance system that the Chinese utility model patent of CN200947120Y relates to a kind of detecting railway railway roadbed surface interruptions thing, comprise range cells, data processing unit, parameter set unit hinders the actuating signal unit with keeping away, data processing unit and range cells, parameter set unit, keeping away barrier actuating signal unit connects respectively, range cells is the sensor that is installed in the top of driving vehicle front end, its axis direction is that the relative level alignment has a down dip, thereby so that its detection direction is the downward-sloping certain angle of level, and this sensor can be surveyed the place ahead 180 degree scopes.The utility model can real-time detect the position of each point of obstacle, thereby can judge that the outside that this obstacle is positioned at side plough still is positioned at the inside of side plough, processes in order in time keep away barrier.But this patent is a kind of simple obstacle avoidance system that uses the single direction distance measurement sensor, can not satisfy the needs that polarizers of big angle scope is measured, the method is mainly installed the range finder of assigned direction, resolves the distance of obstacle and detector according to the signal of detector, triggers and keeps away the barrier action.
The utility model content
The purpose of this utility model provides a kind of railway maintenance job safety forewarn system, this system has realized the Intelligent Recognition of the railway line equipment professional etiquette of going forward side by side is kept away, the user can carry out the setting of construction safety gauge parameter according to the large-scale maintenance machinery vehicle, has good comformability.
In order to realize above-mentioned utility model purpose, the utility model specifically provides a kind of technic relization scheme of railway maintenance job safety forewarn system, a kind of railway maintenance job safety forewarn system, comprise: calculation control unit, image acquisition units, alarm and safe action trigger element, calculation control unit links to each other with image acquisition units, alarm and safe action trigger element respectively, image acquisition units gathers the graphicinformation at construction operation scene, and calculation control unit is by field proving Obtaining Accurate focal length actual value; Calculation control unit is processed and is calculated the graphicinformation of image acquisition units collection, and gives the alarm and the safe action trigger message to alarm and safe action trigger element.
Further improvement as a kind of railway maintenance job safety of the utility model forewarn system technical scheme, system also comprises user interface section, user interface section links to each other with calculation control unit, user interface section shows the corresponding information in the calculation control unit, and calculation control unit is carried out the parameter setting.
Further improvement as a kind of railway maintenance job safety of the utility model forewarn system technical scheme, calculation control unit also further comprises computing module and railway line equipment template stores module, railway line equipment template stores module links to each other with the computing module, the computing module is mated calculating with the graphicinformation that gathers and the railway line equipment masterplate that is stored in the railway line equipment template stores module, determines the type of railway line equipment.
As the further improvement of a kind of railway maintenance job safety of the utility model forewarn system technical scheme, the railway line equipment template stores module in the calculation control unit further comprises road way signs template, switching device template, marker template, signal indicator template, relay case template and contact system wire column template.
Further improvement as a kind of railway maintenance job safety of the utility model forewarn system technical scheme, calculation control unit also further comprises filtration module, filtration module links to each other with image acquisition units, and link to each other with the computing module, filtration module carries out filtering to the graphicinformation of image acquisition units collection to be processed, and the graphicinformation after will processing is sent to the computing module.
As the further improvement of a kind of railway maintenance job safety of the utility model forewarn system technical scheme, filtration module is any one filter in median filter, maximum filter, mini-value filtering device, mid point filter, correction Alpha mean filter, arithmetic equal value filter, geometric mean filter, harmonic wave mean filter, the contrary harmonic wave mean filter.
Further improvement as a kind of railway maintenance job safety of the utility model forewarn system technical scheme, calculation control unit also further comprises the distance relation memory cell, the distance relation memory cell links to each other with the computing module, the computing module reads the railway line equipment of user's setting in the distance relation memory cell and the distance relation table of track centre according to the railway line device type of coupling calculative determination.
Further improvement as a kind of railway maintenance job safety of the utility model forewarn system technical scheme, calculation control unit, image acquisition units, user interface section, alarm and safe action trigger element are installed on the working vehicle, image acquisition units be installed in the working vehicle operator to front end broad view place.
As the further improvement of a kind of railway maintenance job safety of the utility model forewarn system technical scheme, alarm and safe action trigger element further comprise Low frequency horn, low frequency Warning light, high-frequency horn and high frequency Warning light.
By implementing the technical scheme of a kind of railway maintenance job safety of above-mentioned the utility model forewarn system, have following technique effect:
(1) the utility model adopts machine vision and intelligent identification technology, utilize high-speed camera Real-time Collection large-scale maintenance machinery camp site view data, make up image-based railway line device intelligence recognition system, use gauge pattern-recognition, Fuzzy Pattern Recognition Method, realize the Intelligent Recognition of the railway line equipment professional etiquette of going forward side by side is kept away; The user can carry out the setting of construction safety gauge parameter according to the large-scale maintenance machinery vehicle, has good comformability.
(2) the utlity model has larger field range, operator's energy Real Time Monitoring construction environment is directly perceived succinct; When having safety hazard in the construction operation process that transfinites, but system's Realtime Alerts, according to the distance between railway line equipment and the preparation of construction, different alert levels and corresponding processing action are set respectively, in emergency circumstances automatic train stop is kept away barrier, after confirming not have potential safety hazard between preparation of construction and the railway line equipment, can automatic or manually sound all clear.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the system architecture composition frame chart of a kind of specific embodiment of the utility model railway maintenance job safety forewarn system;
The structure composition frame chart of a kind of specific embodiment calculation control unit of Fig. 2 the utility model railway maintenance job safety forewarn system;
Fig. 3 is the program circuit Fig. 1 that is applied to railway maintenance job safety method for early warning of the present utility model;
Fig. 4 is the working process schematic diagram that a kind of specific embodiment image acquisition units of the utility model railway maintenance job safety forewarn system gathers image;
Fig. 5 is the working process schematic diagram of a kind of specific embodiment of utility model railway maintenance job safety forewarn system;
Fig. 6 is the program circuit Fig. 2 that is applied to railway maintenance job safety method for early warning of the present utility model;
Fig. 7 is the schematic diagram that road way signs is abstracted into iconic model in the utility model railway maintenance job safety forewarn system;
Fig. 8 is the schematic diagram that switching device is abstracted into iconic model in the utility model railway maintenance job safety forewarn system;
Fig. 9 is the schematic diagram that marker is abstracted into iconic model in the utility model railway maintenance job safety forewarn system;
Figure 10 is the schematic diagram that signal indicator is abstracted into iconic model in the railway maintenance job safety forewarn system;
Figure 11 is the schematic diagram that the contact system wire column is abstracted into iconic model in the railway maintenance job safety forewarn system;
Figure 12 is the schematic diagram of a kind of specific embodiment alarm of the utility model railway maintenance job safety forewarn system and the alarm of safe action trigger element and safe action trigger process;
Figure 13 is the schematic diagram 1 of a kind of specific embodiment image restoring of the utility model railway maintenance job safety forewarn system process;
Figure 14 is the schematic diagram 2 of a kind of specific embodiment image restoring of the utility model railway maintenance job safety forewarn system process;
Figure 15 is the schematic diagram of a kind of specific embodiment template matches of the utility model railway maintenance job safety forewarn system process.
Among the figure: 1-calculation control unit, 2-image acquisition units, 3-user interface section, 4-alarm and safe action trigger element, the 5-working vehicle, 6-track centre, 7-rail, the 8-road way signs, 9-contact system wire column, 10-computing module, 11-filtration module, 12-railway line equipment template storage unit, 13-distance relation memory cell.
The specific embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is a part of embodiment of the present utility model, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
To shown in the accompanying drawing 15, provided the specific embodiment of a kind of railway maintenance job safety of the utility model forewarn system such as accompanying drawing 1, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
A kind of specific embodiment of railway maintenance job safety forewarn system as shown in Figure 1, construction safety prior-warning device of the present utility model is by a cover image collecting device, and early warning demonstration and sound broadcast device and an Industry Control computer device (containing human-machine interface unit) form.Railway maintenance job safety forewarn system specifically comprises: calculation control unit 1, image acquisition units 2, user interface section 3, alarm and safe action trigger element 4.Calculation control unit 1 links to each other with image acquisition units 2, user interface section 3, alarm and safe action trigger element 4 respectively.Image acquisition units 2 gathers the graphicinformation at construction operation scene, and calculation control unit 1 is by field proving Obtaining Accurate focal length actual value.The graphicinformation that 1 pair of image acquisition units of calculation control unit 2 gathers is processed, and the processing information that obtains and the railway line equipment masterplate that is stored in the calculation control unit 1 are mated calculating, determines the type of railway line equipment.The graphicinformation that the focal length actual value that calculation control unit 1 is obtained according to image acquisition units 2 and image acquisition units 2 gather calculates the actual physics distance between railway line equipment and the image acquisition units 2.Calculation control unit 1 is in conjunction with the actual physics distance between railway line equipment and the image acquisition units 2, and the alarm of corresponding railway line equipment and safe action triggering distance, give the alarm and the safe action trigger message to alarm and safe action trigger element 4.Corresponding information in 3 pairs of calculation control unit 1 of user interface section shows, and calculation control unit 1 is carried out the parameter setting.
As shown in Figure 2, calculation control unit 1 also further comprises computing module 10 and railway line equipment template stores module 12, railway line equipment template stores module 12 links to each other with computing module 10, computing module 10 is mated calculating with the graphicinformation that gathers and the railway line equipment masterplate that is stored in the railway line equipment template stores module 12, determines the type of railway line equipment.Railway line equipment template stores module 12 in the calculation control unit 1 further comprises road way signs template, switching device template, marker template, signal indicator template, relay case template and contact system wire column template.
As shown in Figure 4, calculation control unit 1, image acquisition units 2, user interface section 3, alarm and safe action trigger element 4 are installed on the working vehicle.Image acquisition units 2 further be installed in the working vehicle operator to front end broad view place.Image acquisition units 2 is at Default Value/or regulated during system overhaul and fixed focal length, but after railway maintenance job safety forewarn system entered the camp site, focal length also trickle variation can occur.Therefore, when railway maintenance job safety forewarn system enters the camp site, also need calculation control unit 1 by field proving, obtain more exactly the actual value of focal length.
The railway line equipment masterplate that is stored in the calculation control unit 1 further comprises road way signs, switching device, marker, signal indicator, relay case and contact system wire column, and also may comprise other railway line equipment key elements, such as interim stated-speed sign etc. in interior template.Alarm and safe action trigger element 4 further comprise Low frequency horn, low frequency Warning light, high-frequency horn and high frequency Warning light.
Below in conjunction with the groundwork flow process of accompanying drawing 3 and accompanying drawing 6 explanation railway maintenance job safety forewarn systems, the specific works flow process of railway maintenance job safety method for early warning may further comprise the steps:
S100: image acquisition units 2 gathers the graphicinformation at construction operation scene;
S101: the graphicinformation that 1 pair of image acquisition units of calculation control unit 2 gathers is carried out the image pretreatment, and the processing information that obtains and the railway line equipment masterplate that is stored in the calculation control unit 1 are mated calculating, determines the type of railway line equipment;
In order to mate calculating, system will affect in advance the railway equipment of construction safety and sign is sorted out and abstract becomes model, such as accompanying drawing 7 to shown in the accompanying drawing 11, railway line equipment masterplate comprises road way signs, switching device, marker, signal indicator, relay case and contact system wire column, and other railway line equipment key elements, such as interim stated-speed sign etc. in interior template;
S102: calculation control unit 1 is calculated the distance between corresponding railway line equipment and the track centre 6, and is resolved the actual physics distance between corresponding railway line equipment and the image acquisition units 2 according to the railway line device type of coupling calculative determination; Distance between railway line equipment and the track centre 6 is that railway line equipment is to the vertical distance of track centre 6;
S103: calculation control unit 1 resolve the construction transfinite a little and corresponding railway line equipment between distance; Vehicle parameter and the work pattern of the working vehicle 5 that calculation control unit 1 is set according to the user calculating the distance of transfinite construction point and railway line equipment; If the center of working vehicle 5 and image acquisition units 2 distances are x, since from railway line equipment to image acquisition units the distance 2 greater than the center of working vehicle 5 to the distance the image acquisition units 2, therefore under the prerequisite that guarantees the safe enough allowance, construction transfinite a little and railway line equipment between distance can be seen as approx: D
A=D
s+ x, D
sActual physics distance for railway line equipment and image acquisition units 2;
S104: calculation control unit 1 transfinite a little in conjunction with construction and corresponding railway line equipment between range information, to alarm with safe action trigger element 4 gives the alarm and the safe action trigger message.
The process that the graphicinformation that 1 pair of image acquisition units of calculation control unit 2 gathers among the above-mentioned steps S101 is processed is further comprising the steps:
The original image information that calculation control unit 1 reading images collecting unit 2 gathers, then adopt medium filtering, maxim filtering, mini-value filtering, mid point filtering, revise Alpha's mean filter, arithmetic equal value filtering,
Any one filtering mode in geometric mean filtering, harmonic wave mean filter, the contrary harmonic wave mean filter carries out the disposal of gentle filter to original image information, to reduce picture noise.
The principle schematic of image restoring process as shown in Figure 13.Image restoration is processed on the math modeling basis that is based upon image degradation, and the degeneration math modeling can reflect the reason of image degradation.Its expression formula is:
g(x,y)=h(x,y)*f(x,y)+n(x,y) （1）
Wherein, g (x, y) is the degenrate function behind the image deterioration, the noise function of n (x, y) for adding, and f (x, y) is original input picture function, h (x, y) is the transfer function of imaging system.
And the liftering method is a kind of the simplest image recovery method.Two-dimension fourier transform is made on formula (1) both sides, obtained
G(u,v)=H(u,v)*F(u,v)+N(u,v)
G (u, v) is the degenrate function through the frequency domain conversion, and H (u, v) is through system's transfer function of frequency domain conversion, and F (u, v) is through the original input function of frequency domain conversion, and N (u, v) is through the noise function of frequency domain conversion.
H (u, v) is the transfer function of imaging system, the Fourier transform of the Recovery image that estimation obtains.
The estimated valve of F (u, v)
For:
If know transfer function H (u, v), through type (2) is through the inverse transform image f (x, y) that can be restored, and the overall process of its degeneration and recovery represents with accompanying drawing 14.
When only having additive noise, can select spatial filtering method.At this in particular cases, the enhancing of image and recovery can be distinguished hardly, therefore can select mean filter method noise reduction to carry out image restoration.Below be the original image information filtering Processing Algorithm that is applied in the utility model specific embodiment, include but not limited to following filtering method.
1, the functional relation of arithmetic equal value filtering:
Wherein,
Be the estimated valve of original image f (x, y), the image pixel that g (s, t) collects for imaging system, S
XyThe expression center is of a size of the set of coordinates of the rectangle subimage window of m*n at (x, y) point.Simple smooth the localized variation of piece image, its recovery effect to image is the poorest.
2, the functional relation of geometric mean filtering:
Wherein, the parameter declaration in the formula as previously mentioned, geometric mean filtering is similar with respect to arithmetic equal value filtering degree, but the loss in detail of image is still less.Arithmetic equal value filter and geometric mean filter are suitable for processing Gauss or even partition noise.
3, the functional relation of harmonic wave mean filter:
Wherein, the parameter declaration in the formula as previously mentioned, the harmonic wave mean filter is better for " salt " noise effects, but is unsuitable for " pepper " noise.It is good at processing Gaussian noise.
4, the functional relation of contrary harmonic wave mean filter:
In contrary harmonic wave mean filter, Q becomes the exponent number of filter.When Q was positive number, filter was eliminated the pepper noise; When Q was negative value, filter was eliminated the salt noise; Work as Q=0, contrary harmonic filter deteriorates to the arithmetic equal value filter; When Q=-1, contrary harmonic wave mean filter becomes the harmonic wave mean filter.The harmonic wave mean filter is suitable for processing impulsive noise, but must know that noise is dark noise or bright noise, so that select suitable Q symbol.
5, the functional relation of median filter:
Wherein, the parameter declaration in the formula as previously mentioned, medium filtering is suitable for processing salt-pepper noise, by repeatedly using little template, can obtain good denoising effect.
6, the functional relation of maximum filter:
Wherein, the parameter declaration in the formula as previously mentioned, this filter is very useful to finding the bright spot in the image, can be used for eliminating the pepper noise.
7, the functional relation of mini-value filtering device:
Wherein, the parameter declaration in the formula as previously mentioned, this filter is very useful to finding the dim spot in the image, can be used for eliminating the salt noise
8, the functional relation of mid point filter:
Wherein, the parameter declaration in the formula is got the aviation value of maxim and minimum value as previously mentioned.Noise to the even random scattering of gaussian sum is effective.
9, revised Alpha's mean filter functional relation:
Wherein, the parameter declaration in the formula as previously mentioned, g
r(s, t) is S
XyRemove a remaining m*n-d pixel after d/2 maxim and d/2 the minimum value in the neighborhood.The filter that is formed by the aviation value of these points is called revised Alpha's mean filter.The d value can be got the Arbitrary Digit between 0 to m*n-1.When d=0, the filter regression is the arithmetic equal value filter; When d=(m*n-1)/2, filter just becomes median filter.When d got other value, filter was in the situation that to comprise multiple noise very applicable, for example Gaussian noise and the spiced salt.
S200: calculation control unit 1 reads the view data after the filtering;
S201: calculation control unit 1 reads respectively railway line equipment masterplate in order, such as the template data of road way signs, switching device, marker, signal indicator, relay case and contact system wire column etc.;
S202: calculation control unit 1 is carried out related operation with template data and view data, and the data that are about to template data and view data relevant position are carried out related operation, obtain coefficient of correlation;
S203: the coefficient of correlation that calculates when calculation control unit 1 is determined image and template matches, thereby is obtained the railway line device type in the view data during greater than a setting value.
As shown in Figure 15, the image correlativity computation process among the above-mentioned steps S202 adopts the total similarity measure method of Block Matching Algorithm, such as the normalized correlation coefficient maximization approach.Its basic thought is that hypothesis light stream w=(u, v) is the displacement of different image-regions constantly, the sequential picture of image sequence between enforcing location corresponding.Coefficient of correlation between template data and the view data further calculates according to following formula:
Wherein, C (x, y, u, v) is coefficient of correlation, and point coordinate centered by (x, y), (u, v) are displacement, I
1(x+i, y+j) is the pixel gray scale at (x+i, y+j) some place, I
2(x+u+i, y+v+j) is the pixel gray scale that (x+i, y+j) point produces this place after the displacement of (u, v), and n is field of search thresholding, and N is border, region of search setting value.
When coefficient of correlation is 1, represent that two pieces mate fully.In fact, because the variation of noise and target image shape, the corresponding blocks brightness meeting of different images changes, and can not reach fully coupling.The position of the coefficient of correlation maximum in (2N+1) * (2N+1) field of search is exactly optimum matching, and its displacement (u, v) that departs from center-point (x, y) is light stream.As a kind of better embodiment, among the step S203, the coefficient of correlation that calculates when calculation control unit 1 is determined image and template matches greater than 0.6 the time.
In the process of calculating railway line equipment and track centre 6 distances, according to the railway line device type that coupling is determined, Hough conversion (hough transform) is adopted at the center of calculating this equipment in image, solves the position of image middle orbit center line 6.Equipment center is designated as the distance D of railway line equipment and track centre 6 in the image to the shortest distance of track centre 6
p, unit is pixel (pixels).The Hough conversion is to identify one of basic skills of geometric configuration during image is processed from image.The groundwork of Hough conversion is to utilize some the duality with line, and the curve negotiating curve representation form that the original image space is given becomes a point of parameter space.So just the test problems of given curve in the original image is converted into the spike problem of seeking in the parameter space.Also namely be converted into the detection local characteristics detecting overall permanence.Such as straight line, ellipse, circle, camber line etc.The thought of Hough conversion is: a some correspondence under coordinates of original image coordinates system the straight line in the parameter system of axes, the straight line correspondence of same parameter system of axes a point under the original coordinate system, then, present under the original coordinate system straight line have a few, their slope is identical with intercept, thus they under the parameter system of axes corresponding to same point.With after each spot projection under the original coordinate system is under the parameter system of axes, see whether convergence point is arranged under the parameter system of axes like this, such convergence point is just corresponding straight line under the original coordinate system.
Shown in accompanying drawing 4 and accompanying drawing 5, calculation control unit 1 is according to the railway line device type of coupling calculative determination among the above-mentioned steps S102, calculate the distance between corresponding railway line equipment and the track centre 6, and it is further comprising the steps to calculate the process of the actual physics distance between corresponding railway line equipment and the image acquisition units 2:
S300: calculation control unit 1 is obtained the railway line device type that coupling is determined;
S301: calculation control unit 1 reads the railway line equipment of user's setting and the distance relation table of track centre 6;
S302: the distance D of railway line equipment and track centre 6 in calculation control unit 1 computed image
Mm, reading the distance table middle distance is D
T, obtaining the image acquisition focal length is f, then the actual physics of railway line equipment and image acquisition units 2 distance is D
s:
D
s=D
T*f/D
mm；
S303: calculation control unit 1 calculates the actual physics distance of railway line equipment and image acquisition units 2.
Shown in accompanying drawing 6 and accompanying drawing 12, among the above-mentioned steps S105 calculation control unit 1 transfinite a little in conjunction with construction and corresponding railway line equipment between range information, give the alarm further comprising the steps with the process of safe action trigger message to alarm and safe action trigger element 4:
S400: transfiniting at railway line equipment distance construction apart from l is: during l 〉=15m, enter the first warning zone, calculation control unit 1 triggers the Low frequency horn of alarm and safe action trigger element 4 and reports to the police, simultaneously low frequency Warning light flicker;
S401: transfiniting at railway line equipment distance construction apart from l is: during 12m≤l＜15m, enter the second warning zone, calculation control unit 1 triggers the high-frequency horn of alarm and safe action trigger element 4 and reports to the police, and Warning light glimmers continuously simultaneously;
S402: transfiniting at railway line equipment distance construction apart from l is: during l＜12m, the high-frequency horn that calculation control unit 1 triggers alarm and safe action trigger element 4 sends ear-piercing alarm, the relay that triggering links to each other with the construction stop signal, automatic train stop, releasing is transfinited after the construction operation mechanism, and automatic or manual is sounded all clear.
In accompanying drawing 12, comprise track centre 6, rail 7,, road way signs 8 and contact system wire column 9.The centre of two rails 7 about track centre 6 is positioned at.Whole operating area is divided into safety zone A, the regional B of the first warning, the second regional C of warning and emergency region D by range line.
In above-mentioned alarm and safe action trigger process, whether calculation control unit 1 affects the information of railway operation construction safety in connection with all kinds of railway line equipment in the following table 1, triggers alarm and safe action trigger element 4.For simplifying construction operation operator's work, railway maintenance job safety forewarn system human-computer interaction interface is friendly, takes the mode of similar reversing radar of vehicle figure to show the distance that affects the railway line of railway operation safety equipment and preparation of construction.
| Device type | Whether affect construction safety |
| Road way signs | No |
| Marker | Be |
| The contact system wire column | Be |
| Switching device | Be |
| Relay case | Be |
| Signal indicator | Be |
Table 1
The described technical scheme of the utility model specific embodiment is utilized the machine vision template matches, the principles such as fuzzy diagnosis, carry out the identification of railway equipment, according to the distance relation between railway line equipment and the track centre, carrying out the distance of railway line equipment and working vehicle resolves, according to the early warning of constructing of practice of construction operation overrun condition, guarantee the construction safety of railway maintenance operation, and have following technique effect:
(1) the utility model adopts the method for image acquisition units and template matches identification railway line equipment.With the processing of common railway line equipment mode, set up template base, will gather image and carry out template matches, obtain corresponding railway line device type;
(2) the utility model adopts the actual physics distance calculation method of railway line equipment and image acquisition units, according to user's setup parameter, the distance relation table of forming device and track centre, and according to the distance of railway line equipment and track centre in the image, resolve the actual distance of railway line equipment and image acquisition units;
(3) the utility model adopts transfinite construction point and railway line equipment distance calculation method, vehicle parameter and work pattern according to user's setting, the real-time resolving distance with railway line equipment that transfinites a little can adapt to the construction safety early warning of various and a plurality of mode of operations;
(4) the utility model adopts different railway line equipment and the distance of current implement is shown, and the method for alarm and all clear, take a cover image acquisition units to finish the collection of image, main by the pretreatment of image and the mode identification method of template matches, fast and effeciently detect railway line equipment.
(5) the utility model is according to the customer parameter setting, form the distance relation table of railway line equipment and track centre, and thus can efficiently and accurately resolve the actual distance of railway line equipment and image acquisition units, improve the comformability of measuring speed and the Equipment Inspection of polymorphic type railway line.
The above only is preferred embodiment of the present utility model, is not the utility model is done any pro forma restriction.Although the utility model discloses as above with preferred embodiment, yet is not to limit the utility model.Any those of ordinary skill in the art, do not breaking away from the technical solutions of the utility model scope situation, all can utilize method and the technology contents of above-mentioned announcement that technical solutions of the utility model are made many possible changes and modification, or be revised as the equivalent embodiment of equivalent variations.Therefore; every content that does not break away from technical solutions of the utility model; any simple modification of above embodiment being done according to technical spirit of the present utility model, be equal to replacements, equivalence changes and modify, all still belong in the scope that technical solutions of the utility model protect.
Claims (9)
1. railway maintenance job safety forewarn system, it is characterized in that, comprise: calculation control unit (1), image acquisition units (2), alarm and safe action trigger element (4), described calculation control unit (1) links to each other with image acquisition units (2), alarm and safe action trigger element (4) respectively, described image acquisition units (2) gathers the graphicinformation at construction operation scene, and calculation control unit (1) is by field proving Obtaining Accurate focal length actual value; Described calculation control unit (1) is processed and is calculated the graphicinformation that image acquisition units (2) gathers, and gives the alarm and the safe action trigger message to alarm and safe action trigger element (4).
2. a kind of railway maintenance job safety forewarn system according to claim 1, it is characterized in that: described system also comprises user interface section (3), described user interface section (3) links to each other with calculation control unit (1), user interface section (3) shows the corresponding information in the calculation control unit (1), and calculation control unit (1) is carried out the parameter setting.
3. a kind of railway maintenance job safety forewarn system according to claim 1 and 2, it is characterized in that: described calculation control unit (1) also further comprises computing module (10) and railway line equipment template stores module (12), described railway line equipment template stores module (12) links to each other with computing module (10), computing module (10) is mated calculating with the graphicinformation that collects and the railway line equipment masterplate that is stored in the railway line equipment template stores module (12), determines the type of railway line equipment.
4. a kind of railway maintenance job safety forewarn system according to claim 3, it is characterized in that: the railway line equipment template stores module (12) in the described calculation control unit (1) further comprises road way signs template, switching device template, marker template, signal indicator template, relay case template and contact system wire column template.
5. according to claim 2 or 4 described a kind of railway maintenance job safety forewarn systems, it is characterized in that: described calculation control unit (1) also further comprises filtration module (11), described filtration module (11) links to each other with image acquisition units (2), and link to each other with computing module (10), the graphicinformation that filtration module (11) gathers image acquisition units (2) is carried out the filtering processing, and the graphicinformation after will processing is sent to computing module (10).
6. a kind of railway maintenance job safety forewarn system according to claim 5 is characterized in that: described filtration module (11) for median filter, maximum filter, mini-value filtering device, mid point filter, revise any one filter in Alpha's mean filter, arithmetic equal value filter, geometric mean filter, harmonic wave mean filter, the contrary harmonic wave mean filter.
7. according to claim 4 or 6 described a kind of railway maintenance job safety forewarn systems, it is characterized in that: described calculation control unit (1) also further comprises distance relation memory cell (13), described distance relation memory cell (13) links to each other with computing module (10), computing module (10) reads the railway line equipment of user's setting in the distance relation memory cell (13) and the distance relation table of track centre (6) according to the railway line device type of coupling calculative determination.
8. according to claim 1, the described a kind of railway maintenance job safety forewarn system of arbitrary claim in 2,4,6, it is characterized in that: described calculation control unit (1), image acquisition units (2), user interface section (3), alarm and safe action trigger element (4) are installed on the working vehicle (5), described image acquisition units (2) be installed in working vehicle (5) operator to front end broad view place.
9. a kind of railway maintenance job safety forewarn system according to claim 8, it is characterized in that: described alarm and safe action trigger element (4) further comprise Low frequency horn, low frequency Warning light, high-frequency horn and high frequency Warning light.
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| CN 201220229092 CN202703632U (en) | 2012-05-21 | 2012-05-21 | Railway maintenance operation safety pre-warning system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308905A (en) * | 2013-06-06 | 2013-09-18 | 湖南农业大学 | Collision prevention device and method for ballast screening machine |
| CN103745484A (en) * | 2013-12-31 | 2014-04-23 | 国家电网公司 | Worker target safety early-warning method for hot-line work on electric power facility |
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2012
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308905A (en) * | 2013-06-06 | 2013-09-18 | 湖南农业大学 | Collision prevention device and method for ballast screening machine |
| CN103308905B (en) * | 2013-06-06 | 2015-12-23 | 湖南农业大学 | A kind of ballast screen scarifier collision avoidance system and method |
| CN103745484A (en) * | 2013-12-31 | 2014-04-23 | 国家电网公司 | Worker target safety early-warning method for hot-line work on electric power facility |
| CN103745484B (en) * | 2013-12-31 | 2017-02-15 | 国家电网公司 | Worker target safety early-warning method for hot-line work on electric power facility |
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