CN201896286U - Pavement defect detection system - Google Patents
Pavement defect detection system Download PDFInfo
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- CN201896286U CN201896286U CN2011200508580U CN201120050858U CN201896286U CN 201896286 U CN201896286 U CN 201896286U CN 2011200508580 U CN2011200508580 U CN 2011200508580U CN 201120050858 U CN201120050858 U CN 201120050858U CN 201896286 U CN201896286 U CN 201896286U
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Abstract
The utility model discloses a pavement defect detection system, which is used for detecting pavement defects by using an infrared imaging technology. The system comprises a detection vehicle, a tripod head, a thermal infrared imager, a main controller and a data processor, wherein the detection vehicle drives on a detected pavement; the tripod head is arranged on the detection vehicle and can horizontally and vertically rotate relative to the detection vehicle; the thermal infrared imager is detachably arranged on the tripod head and is used for shooting an infrared chart on the detected pavement and outputting an infrared chart digital signal related to the infrared chart; the main controller is arranged on the detection vehicle, is respectively connected with the tripod head and the thermal infrared imager and is used for controlling the shooting action of the thermal infrared imager, controlling the horizontal rotating angle and the vertical rotating angle of the tripod head and converting the infrared chart digital signal into an infrared digital signal transmitted by a standard network; and the data processor is used for receiving the infrared digital signal and analyzing and processing the infrared digital signal so as to determine the detect types of the detected pavement and the positioning positions of the defects. The system has high flexibility of operation and can be used for visually displaying the details of the detects.
Description
Technical field
The utility model relates to a kind of road surface defective and pavement state detection technique, especially relates to a kind of system that monitors at pavement construction quality such as pitch speedways.
Background technology
At present, when both at home and abroad the road surface defective on flexible pavement such as speedway or other road surfaces being monitored, normal " artificial visual detection method " or the road pavement defectives such as " based on the road surface water permeability assessment and the supporting maintenance technologies of infra-red heat difference " of adopting carried out fast detecting and assessment.
The core instrument that " based on the road surface water permeability assessment and the supporting maintenance technology of infra-red heat difference " adopted is infrared radiation thermometer (or claiming the infrared point temperature measurer), its road surface defect detecting system is fixed on some infrared radiation thermometers side by side and detects the vehicle afterbody, in the automobile traveling process, trigger the work of infrared point temperature measurer by range sensor, gather the interior Temperature numerical of pavement monitoring scope such as speedway, by multi-point temp value formation temperature curve, form road surface heat poor (temperature difference) collection of illustrative plates by the temperature contrast curve simulation again, as the detection data on road surface, and then the damaged condition on judgement road surface.
Infrared radiation thermometer is a kind of instrument that utilizes installation photodetector within it to survey the body surface temperature, and it launches infrared light beam by photodetector, and this emission light beam is returned running into the body surface back reflection, focuses on the photodetector again.Because compare aforementioned emission light beam, the entrained infrared heat energy of the light beam that returns is looked the different of the material of described object and surface state and the different energy loss of degree is arranged, this photodetector receives the energy of the infrared light beam that is returned and is converted into the corresponding signal of telecommunication, and this signal of telecommunication is scaled the temperature value of measured target again.
Because infrared radiation thermometer is used to the temperature of certain some position of body surface is measured one by one, therefore desirable situation is a some place that the emission light beam is focused on body surface, and the temperature that records like this is only the most accurate this temperature.Yet, because the scattering phenomenon of light beam, when finally touching body surface at the process certain distance from the photodetector emitted light beams, not to be mapped on the point, but becoming a zone, this regional area size obviously is directly proportional with the distance (being the thermometric distance) of testee with photodetector.Therefore the actual temperature that records of the infrared radiation thermometer average temperature that is a zone.
And, though infrared radiation thermometer can be measured by one or many and provide the temperature that some point of testee (or zone) is located, the infrared chart that it can not provide the intuitive image of testee or the architectural feature that can embody testee is provided, thereby this road surface defects detection mode based on infrared radiation thermometer of prior art is not owing to there is real image scene to do reference, testing result is directly perceived inadequately, the judgement of road pavement defective, location and analysis are all very difficult, cause test leakage or mistake to survey easily, can not satisfy actual detected assessment needs.
For example, the patent No. is that 200420041784 patent documentation " Infrared Pavement temperature measuring device " discloses a kind of like this road surface defect detecting system, it utilizes infrared radiation thermometer to gather the flexible pavement temperature, form heat difference collection of illustrative plates according to temperature contrast, from quantitative, qualitative and locate the permeable zone on assessment road surface, three aspects.The groundwork principle is: owing to there are inconsistency in road surface compactness, permeability rate, cause behind the rain difference of water content in the deck, process water evaporates at sunshine is taken away heat, makes the road surface present different temperature reflections, by can judge the difference of compactness to the analysis of heat difference collection of illustrative plates.
Because what the core checkout equipment of this system adopted is infrared radiation thermometer, its operating principle determined it can only thermometric can not imaging, so can not reflect the thermal map picture of testee intuitively; Again because the detected infrared data signal of infrared radiation thermometer is and the average temperature of a zone (tested zone) area that thermometric distance is directly proportional, so there is certain error in the accuracy of its temperature-measuring results; Moreover, because infrared radiation thermometer measured temperature numerical value is point data (is the infrared data signal of a pocket at most also, this zone of required precision based on pavement detection can't be too big) type, so the area of detection of single infrared radiation thermometer is very limited, even on a detection vehicle, install many infrared radiation thermometers additional, once at most also can only monitor a track, therefore it wants to realize that the complete detection to multi-lane pavement is to be time-consuming effort again certainly, for example, the manual of above-mentioned patent application claims in the explanation to its accompanying drawing 1: " collection of illustrative plates district: according to the heat difference collection of illustrative plates of temperature difference formation; red partially expression high-temperature region; blue partially expression low-temperature space; at every turn detect a track ", it also can only be realized one-lane detection as can be known.
Summary of the invention
In order to address the above problem, the purpose of this utility model provides a kind of road surface defect detecting system based on infrared imagery technique, it utilizes infrared thermal imaging technique to detect the defective on flexible pavement such as speedway or other road surfaces quickly and intuitively, for the maintenance of defectives such as relevant road infiltration, crack, hole groove, loose, intermediate peeling provides technical basis accurately.
In order to achieve the above object, the utility model provides a kind of road surface defect detecting system based on infrared imagery technique, and this system comprises: detect vehicle, travel on detected road surface; The Cloud Terrace is arranged on this detection vehicle, and this The Cloud Terrace horizontally rotates with respect to this detection vehicle and vertically rotation; Thermal infrared imager is removably disposed on this The Cloud Terrace, and this thermal infrared imager is used to take the infrared chart on described detected road surface, and the output infrared chart data signal relevant with the infrared chart that includes Temperature numerical on this detected road surface; Master controller, be arranged on this detection vehicle and also be connected with this thermal infrared imager with this The Cloud Terrace respectively, control the shooting action of this thermal infrared imager, and control this The Cloud Terrace horizontally rotate the angle and the vertical anglec of rotation, and the infrared chart data signal of this thermal infrared imager output is converted to the infrared data signal that is used for the standard network transmission; And data processor, generation exports this master controller to the control signal of described thermal infrared imager and with it, and receive described infrared data signal and it is analyzed and handles, with the defect type of determining described detected road surface and the position location of defective.
According to embodiment of the present utility model, this master controller comprises: the usb signal change-over panel will be converted to usb signal with the infrared chart data signal that includes Temperature numerical that this thermal infrared imager is taken; USB interface receives and transmits described usb signal; And data analysis and control module, to be converted to the described infrared data signal disease that is used for the standard network transmission from the usb signal of this USB interface it will be sent to this data processor in real time by netting twine, produce the thermal imaging system control signal according to distance measuring signal from this data processor, and described thermal imaging system control signal is sent to this thermal infrared imager to control the shooting action of this thermal infrared imager, and drive signal, and described The Cloud Terrace is driven signal be sent to this The Cloud Terrace to control horizontally rotating and vertically rotation of this The Cloud Terrace according to producing The Cloud Terrace from the cradle head control signal of this data processor.
According to embodiment of the present utility model, this The Cloud Terrace comprises: the main body support is fixedly mounted on this detection vehicle; Vertically drive motors is arranged in this main body support; Vertically rotating mechanism is arranged on this main body support and with this vertical drive motors and links, thereby vertically rotates; The horizontal drive motor is arranged in this main body support; And horizontal rotary mechanism, be arranged on this vertical rotating mechanism and with this horizontal drive motor linkage, thereby horizontally rotate, this horizontal rotary mechanism vertically rotates under the drive of this vertical rotating mechanism together simultaneously; And fixed support, be arranged on this horizontal rotary mechanism, removably fix the fuselage of this thermal infrared imager.
According to embodiment of the present utility model, this data processor comprises: Data Input Interface receives the infrared data signal from this master controller; Data analysis module is used road surface defect analysis software and is handled and data analysis carry out sectional drawing from the infrared data signal of Data Input Interface, determines defect type, defect location position on the detected road surface according to handling the back data; And memory module, described processing back data and definite result are stored wherein.
According to embodiment of the present utility model, this data processor also comprises display module, is connected with this data analysis module and the infrared chart on detected road surface, infrared data signal, defect type, defect location position and the suggestion disposal method of showing directly perceived.
According to embodiment of the present utility model, the Data Input Interface of this data processor carries out data by RJ45 standard network interface and this master controller and transmits and network service.
According to embodiment of the present utility model, this system also comprises: range unit, be arranged on the wheel of this detection vehicle, this range unit is connected with this data processor, this data processor receives and is converted into distance measuring signal from the vehicle speed pulse signal of this range unit and with it, export described distance measuring signal to this master controller again, make this master controller generate the thermal imaging system control signal, to control the shooting action of this thermal infrared imager according to described distance measuring signal.
According to embodiment of the present utility model, this system also comprises: data link is connected with this data processor with this master controller respectively, to carry out network service between the two.
According to embodiment of the present utility model, this data link is the router that is connected with this data processor by netting twine and this master controller.
Above-mentioned the technical solution of the utility model has following beneficial effect:
1., technology such as information acquiring technology such as infrared thermal imaging and the infrared Digital Signal Processing of image are combined, adopt non-contacting image taking to realize fast detecting to faces such as pitch speedways; The operating flexibility of this system is big, and infrared photography is not influenced by cloud, rain, greasy weather gas, and infrared imaging is clear, and the single-frame images acquisition time only is 7ms.Owing to be that thermal imaging detects, taken defective details can more clear demonstration, and it is more direct that defective is judged.
2., utilize state-of-the-art sensing technology to trigger, equidistantly or uniformly-spaced pass on signal to device for detecting temperature, guarantee the continuity of image taking.
3., infrared data signal carried out analyzing and processing and manage, generate analysis report, in time find road surface defective hidden danger, improved existing high speed bituminous highway maintenance technology.
Description of drawings
Fig. 1 is the block diagram of road surface of the present utility model defect detecting system
Fig. 2 is each parts annexation schematic diagram of road surface defect detecting system shown in Figure 1
Fig. 3 is the workflow diagram according to the road surface defect detecting system of the utility model embodiment
Fig. 4 is the cradle head structure schematic diagram according to an embodiment of the utility model
Fig. 5 is the installation site schematic diagram according to the road surface defect detecting system of an embodiment of the utility model
Fig. 6 is the installation site schematic diagram according to the road surface defect detecting system of another embodiment of the utility model
Wherein, description of reference numerals is as follows:
1-detects vehicle
The 2-The Cloud Terrace
21-main body support
The vertical drive motors of 22-
The 23-upright driving mechanism
24-horizontal drive motor
25-horizontal drive mechanism
The 26-fixed support
The 3-thermal infrared imager
The 4-master controller
The 41-USB signal transducer
The 42-USB interface
43-data analysis and control module
The 5-data processor
The 51-Data Input Interface
The 52-data analysis module
The 53-memory module
The 54-display module
The 6-range unit
The 7-data link
The specific embodiment
For the purpose, technical scheme and the advantage that make embodiment of the present utility model is clearer,, embodiment of the present utility model is done explanation in further detail below in conjunction with embodiment and accompanying drawing.At this, illustrative examples of the present utility model and explanation thereof only are used to explain the utility model, but not as to qualification of the present utility model.
Along with the fast development of speedway and the continuous increase of building mileage, structure model selection is paid attention to further, also more and more stricter to construction technology and Construction Quality Control, but damages such as the meeting appearance after being open to traffic, two year of some highway sections is permeable as the road surface, crack, hole groove, rut check crack, purt slurry, bridge floor breakage, the function of use that this not only greatly reduces safe, quick, the comfortable driving of speedway has also increased the highway maintenance cost.
Generally speaking, the damage of flexible pavement can be divided into two classes: a class is a structural damage, comprises the destruction of road structure integral body or wherein some or few component parts, the road surface is reached can not bear predetermined vehicular load; Another kind of is functional damage, and it might not be attended by structural damage yet and takes place, but because the decline of factors such as planarization, anti-slide performance makes it no longer have predetermined function of use, thereby influence driving quality.
Functional breakage generally is prima facie, is easy to identification, and its damaged reason is also more clearly.Mainly contain following several: local thin shape crack, wave are gathered around bag, bellding, are peeled off, pitted skin and polishing.These breakages mainly are to cause the service level of road to descend, and generally do not have direct relation with the road structure performance.For functional damage, can the function of surface layer be restored by trimming, maintenance or cover.
Structural breakage mainly is to cause that it is exactly the destructions such as crack, distortion and displacement of different shape that its result is reflected on the road surface because the stress of some structural defect of each layer inherence, road surface and load increases institute.Mainly contain following several: be full of cracks, check crack, in length and breadth to crack, depression, hole groove, purt slurry, repair damaged, loose and rut.These breakages not only cause the service level of road to descend, but also the road structure bearing capacity obviously declines and fall, and damaged aggravation finally causes pavement destruction.For structural damage, need usually road is overhauled completely.
In addition, basic unit's type, surface layer structure, load type, weather and work progress, making effect etc. all can influence the types of damage on road surface.For example in the asphalt surface course of the coarse antiskid structure of some gap gradations, tend to cause early water infringement property destructions such as permeable, occluded water owing to the making layer is thicker; The area of or weather conditions that temperature very low very big in the temperature difference, flexible pavement can produce laterally or longitudinal crack because of thermal stresses, and these cracks are caused under the vehicle effect usually again and are fractureed and cracked or the like.
On the basis of clear and definite above-mentioned road surface types of damage, just the road pavement disease detects improvement targetedly.Because detection means at present commonly used exists that detection efficiency is low, coverage rate is narrow, representativeness is poor, cost is high and many drawbacks such as destruction road surface.Therefore, it is imperative to carry on quick, easy, effective highway Dynamic Non-Destruction Measurement.
Thermal infrared imager is widely used in industry or civilian detection range, comes the position of infrared chart, inspected object of shot object and duty etc. based on infrared detection technology, and can therefrom obtain the infrared data signal of subject.
The operating principle of thermal infrared imager determined it can imaging again can thermometric, that is to say outside the temp sensing function that has satisfied the infrared point temperature measurer, can also present the infra-red heat distributed image of testee, and the infrared accurately data signal that in this infra-red heat distributed image, comprises the every bit of testee, therefore testing result is accurate and visual, is easy to the potential faults point is judged fast.Because the optics mechanism and the video camera of thermal infrared imager are close, it can come the areal extent of conversion testee by the angle of visual field of regulating camera lens, if thermal infrared imager is erected at the detection vehicle roof, be enough to detect simultaneously whole road surfaces in 4 tracks of speedway.So, use thermal infrared imager to detect the road surface defective and have very good prospects for application.
Pavement detection system based on infrared imagery technique of the present utility model is a kind of highway nondestructive testing new technology and means that can satisfy above-mentioned requirements.By to formed infrared chart analysis, diagnose out highway distress, just can carry out disease breakage causal investigation, research, propose practicable preventive maintenance scheme, and then improve the constructing road quality, prolong road application life, really accomplish " putting prevention first and combining prevention with control ".
The infrared thermal imaging detection technique is mainly by surface temperatures such as pitch speedways behind the collection rain, according to the infrared chart of temperature contrast formation, from the water permeability and the damage on assessment road surface, quantitative and qualitative two aspects.As at be full of cracks, check crack, the breakage of depression isostructuralism, because cracking infiltration, can there be certain temperature contrast with other normal road surfaces, on infrared chart, then present the low temperature line of netted or striated, according to the temperature contrast situation, can roughly judge the damaged condition on road surface, and then take suitable repairing method.And gather around bag, bellding, pitted skin and polishing etc. at functional breakage such as wave, then by the analysis of software systems to variance data, form analysis report, file is put on record, by the infrared chart accumulation contrast to putting on record, analysis software just can analyze the defect type on road surface at last.
As shown in Figure 1, be the block diagram of the road surface defect detecting system based on infrared imagery technique of the present utility model.This system comprises: detect vehicle 1, travel on detected road surface with uniform relatively speed per hour; The Cloud Terrace 2 is arranged on this detection vehicle 1, and this The Cloud Terrace 2 can detect vehicle 1 with respect to this and horizontally rotate and vertically rotation; Thermal infrared imager 3, be removably disposed on this The Cloud Terrace 2, this thermal infrared imager 3 is used to take the infrared chart on described detected road surface, and the output infrared chart data signal (14 position digital signal) relevant with the infrared chart that includes Temperature numerical on this detected road surface; Master controller 4, be arranged on this detection vehicle 1 and also be connected with this thermal infrared imager 3 with this The Cloud Terrace 2 respectively, in order to control the shooting action of this thermal infrared imager 2, take action shown in it and comprise that specifically shooting zero-time, concluding time, shooting trigger opportunity, camera lens focusing and coverage etc., and control this The Cloud Terrace 2 horizontally rotate the angle and the vertical anglec of rotation, and the infrared chart data signal of these thermal infrared imager 3 outputs is converted to the infrared data signal that is used for the standard network transmission; And data processor 5, in order to generate and output to the control signal of described thermal infrared imager 3, and in order to receiving described infrared data signal and it is analyzed and handles, with the defect type of determining described detected road surface and the position location of defective.
In embodiment as shown in Figure 2, this master controller 4 can comprise: usb signal change-over panel 41, in order to receive from the infrared chart data signal of thermal infrared imager 3 and to be converted into usb signal; USB interface 42 is in order to transmit described usb signal; And data analysis and control module 43, using Irsever software will be converted to from the usb signal of USB interface 42 and can be sent to data processor 5 in real time by netting twine by the infrared data signal of RJ45 standard network interface transmission and with it, produce the thermal imaging system control signal according to distance measuring signal from data processor 5, and described thermal imaging system control signal is sent to this thermal infrared imager 3 to control the shooting action of this thermal infrared imager 3, and drive signal, and by 485 serial ports described The Cloud Terrace is driven signal and be sent to The Cloud Terrace 2 to control horizontally rotating and vertically rotation of this The Cloud Terrace 2 according to producing The Cloud Terrace from the cradle head control signal of data processor 5.
This master controller 4 for example can AMD LX700 chip specific implementation, perhaps also can adopt the chip of the other types of the above-mentioned functions that can satisfy this master controller 4.This master controller 4 is arranged in the protective cover with these thermal infrared imager 3 integral body.
Wherein, data analysis and control module 43 can convert 14 the infrared data signals (usb signal) from thermal infrared imager 3 that receive to RJ45 standard network signal behind operation IRsever software, send to data processor 5 again and handle; The control signal that data processor 5 sends (thermal imaging system control signal and The Cloud Terrace driving signals such as for example movement focusing, catch, The Cloud Terrace rotation) is sent to this master controller 4 by the RJ45 standard network, this master controller 4 can send usb signal after receiving described control signal and driving signal, the thermal imaging movement that drives the infra-red heat thermal imaging system carries out actions such as a series of focusing, can also make this The Cloud Terrace 2 can carry out level and the vertically rotation in the certain angle scope by 485 serial ports control The Cloud Terrace 2.
In embodiment as shown in Figure 4, The Cloud Terrace 2 comprises: main body support 21 is fixedly mounted on this detection vehicle 1; Vertically drive motors 22 is arranged in this main body support 21; Vertically rotating mechanism 23 is arranged on this main body support 21 and with this drive motors 22 and links, to realize vertical rotation; Horizontal drive motor 24 is arranged in this main body support 21; Horizontal rotary mechanism 25, be arranged on this vertical rotating mechanism 23 and and link with this horizontal drive motor 24, horizontally rotate with realization, this horizontal rotary mechanism 25 can rotate vertically together under the drive of this vertical rotating mechanism 23 that (himself rotation this moment does not horizontally rotate simultaneously, but the rotation of tilting), and fixed support 26, be arranged on this horizontal rotary mechanism 25, in order to removably to fix the fuselage of this thermal infrared imager 3.
The rotary speed of described vertical rotating mechanism 23 can be 3-5 °/S, is preferably 4 °/S, and vertically the angular range of rotation is 10-90 °.The rotary speed of described horizontal rotary mechanism 25 can be 6-12 °/S, is preferably 9 °/S, and the angular range that horizontally rotates is 0-355 °.
This The Cloud Terrace 2 also can possess automatic scan and automatic cruising function.
This The Cloud Terrace 2 also can comprise the networking communication function, and its communication protocol comprises multi-protocols such as Pelco-P, Pelco-D, YAAN, industry standard, and baud rate is optional.
In the main body support 21 of this The Cloud Terrace 2, also heater can be set, when weather was cold, in order to guarantee the normal operation of each parts in the The Cloud Terrace 2, this heater was used for the environment in the main body support 21 is heated, for example it is opened in the time of 8 ℃～± 5 ℃, closes in the time of 20 ℃～± 5 ℃.
In one embodiment, data processor 5 can be realized by notebook computer, this notebook computer can place and detect in the vehicle 1, also can place and detect vehicle 1 outer somewhere, for example is arranged in certain work station and realizes the telecommunication of data processor 5 and master controller 4 with wireless network.
This data processor 5 can comprise: Data Input Interface 51, and reception comes the infrared data signal of autonomous controller 4; Data analysis module 52, use road surface defect analysis software and handle and data analysis, determine defect type, the defect location position on the detected road surface and advise disposal method etc. according to handling the back data to carry out sectional drawing from the infrared data signal of Data Input Interface 51; And memory module 53, will handle the back data and determine result's storage wherein, to treat follow-up further arrangement.
This data processor 5 also can comprise display module 54, in order to the infrared chart on the detected road surface of demonstration directly perceived, infrared data signal, defect type, defect location position and suggestion disposal method etc.
The Data Input Interface 51 of data processor 5 can be connected with master controller 4 by the RJ45 standard network interface, transmits and network service to realize data.
In one embodiment, road surface of the present utility model defect detecting system also can comprise range unit 6, be arranged on the wheel of this detection vehicle 1, this range unit 6 is connected with this data processor 5 and exports the vehicle speed pulse signal to this data processor 5, this data processor 5 is converted into described vehicle speed pulse signal distance measuring signal and sends it to master controller 4, make this master controller 4 produce the thermal imaging system control signal, thereby control the shooting action of this thermal infrared imager 3 according to described distance measuring signal.
Wherein, this range unit 6 for example can be the Hall element of the tire rotational speed of measuring vehicle, also can be the range unit that can satisfy the other types of vehicle distance measurement function.
The pulse signal that described data processor 5 sends according to hall sensor, converse the speed of a motor vehicle and the stroke that detect vehicle 1, the user need set the road surface defect analysis software in the data processor 5 according to actual conditions, provide the preset distance (rice) of at every turn being separated by and trigger the infrared chart shooting that thermal infrared imager 3 carries out the road surface, north side, after each vehicle ' is crossed this preset distance, the infrared data signal sectional drawing that defect analysis software in road surface will send over from this master controller 4 automatically, and whether road surface defective presentation arranged on the analysis image, if have, then automatically highway section, place and defective presentation are recorded in the memory module (hard disk of notebook computer) of data processor 5, to treat the later stage arrangement.
In one embodiment, road surface of the present utility model defect detecting system also can comprise data link 7, it can be the router that is connected with this data processor 5 by netting twine and this master controller 4 respectively, realizes that by this router the data between master controller 4 and the data processor 5 transmit and network service.Wherein said data transmit and comprise that reception is from the described infrared data signal of master controller 4 outputs and send it to this data processor 5, reception is from the distance measuring signal and the cradle head control signal of data processor 5 and be sent to this master controller 4, and described network service comprises using by the user and directly sends the thermal infrared imager control instructions and/or cradle head control is instructed to this master controller 4 from data processor 5.
In one embodiment, the defect detecting system data that adopted the Integrated Service Digital Network technology of using the RJ45 standard network interface to carry out between master controller 4 and the data processor 5 in road surface of the present utility model transmit and network service.
Because system adopts advanced computer compress technique and network transmission technology, only need by RJ45 standard ethernet communication interface, just can realize the network service of the control signal between master controller 4 and the data processor 5 and time real transmission of infrared image and temperature data with a netting twine, record and analyzing and processing, and at existing automatic warning of fault etc., its total data (infrared chart, temperature data, control command etc.) all be to transmit with number format, reduced the complexity of system wiring greatly, reduced the wiring cost of system, improve the reliability of data transmission and the accuracy of accident analysis, strengthened the flexibility of temperature analysis and calculating.
The basic functional principle of road surface of the present utility model defect detecting system is: in detecting the vehicle walking process, based on range unit (Hall element) the 6 resulting distance measuring signals that are installed on the tire that detects vehicle, every certain distance (for example being 2 meters) of crossing sends a triggering signal, (this regional length for example is 2 meters in certain section zone on the detected road surface of thermal infrared imager 3 shootings on the detection trigger vehicle, width is the standard lane width) the infrared chart with infrared data signal, again through the data analysis module 52 on the data processor 5 and the road surface defect analysis software that is installed on it come to thermal map and on temperature data carry out analyzing and processing, draw this regional pavement temperature distribution collection of illustrative plates according to analysis and result, and then operation more than repeating, move in circles, thereby obtain continuous pavement temperature distribution collection of illustrative plates and whole temperature data on whole detected road surfaces, with quantitatively and qualitative method reflect the defect situation on detected road surface intuitively, for pavement maintenance provides visual image and data.
Specifically describe the pavement detection method that is adopted based on the road surface defect detecting system of infrared imagery technique of the present utility model below in conjunction with accompanying drawing 3.
Described road surface defect inspection method may further comprise the steps:
S1) thermal infrared imager 3 is erected to detect on the vehicle by The Cloud Terrace 2 (considers the angle of visual field and desired height problem that thermal imaging system is taken, detecting vehicle 1 generally adopts as Fig. 5-headstock, tailstock position tool car higher apart from ground shown in Figure 6, make things convenient for thermal imaging system to install), master controller 4 and Hall element all are connected on the other notebook computer (being data processor 5) of driver's seat by netting twine or line related line, the device installation site of whole system such as Fig. 5-and shown in Figure 6.
Still see also Fig. 5-Fig. 6, can with detecting requirement thermal infrared imager 3 be erected at alternatively the top or the afterbody of detection vehicle according to concrete road conditions.During installation, can thermal infrared imager 3 be raise by auxiliary plane, required to satisfy the detection width of roadway.Because the installation site difference of thermal infrared imager 3 is when determining the road surface defective locations according to the gained infrared chart, at taking into account the installation site of thermal imaging system in the computational methods of distance.
Detecting vehicle travels on the detected road surface of speedway etc. with basic speed per hour uniformly.
S2) based on the cradle head control signal from data processor 5, master controller 4 generates The Cloud Terrace and drives signal, in order to drive horizontally rotating and the vertical anglec of rotation of The Cloud Terrace 2.
S3) preset distance (being generally 2 meters) by setting based on the pulse signal of Hall element.
S4) send the take pictures flip flop equipment of a triggering signal every this preset distance to thermal infrared imager 3, infrared thermography 3 automatically snaps the infrared chart on detected road surface according to described triggering signal, this infrared chart is an infrared digital image, and every bit all comprises concrete Temperature numerical.
S5) this thermal infrared imager 3 is sent to this master controller 4 by data wire in real time with the infrared chart thermal map signal that each captured frame comprises Temperature numerical, and this master controller 4 is converted to described infrared chart data signal the infrared data signal that is used for standard network transmission and and then is sent to this data processor 5.
S6) these data processor 5 application road surface defect analysis softwares carry out sectional drawing processing and data analysis to described infrared data signal, the analyzing and processing of processing module by analysis, provide the continuous Temperature Distribution collection of illustrative plates on detected road surface, obtain the temperature trend analytic curve simultaneously, accurately to reflect the corresponding temperature of road surface shooting time and every bit.
S7) when notable difference appears in infrared thermographic temperature data, defect analysis software in road surface can be analyzed variance data, form analysis report by analyzing, determine the road surface defect type, to temperature pattern and the temperature curve that ANOMALOUS VARIATIONS is arranged, road surface defect analysis software warning automatically (for example on the display screen of display module, ejecting the alarm frame automatically), and provide the concrete shooting number position at the picture place that defective occurs according to the coordinate of starting point, computer processing system converses the position, concrete road surface of trouble point according to what this number position and range sensor were set apart from trigger parameter more automatically, i.e. the milimeter number of starting point relatively.
Described method is further comprising the steps of:
S8) behind execution in step S7, judge whether this detection vehicle 1 arrives the terminal point on detected road surface, if judged result is then returned step S4 for not.
S9) behind execution in step S8, if judged result is for being, the analyst carries out analysis and judgement one by one to the picture of occurring defective, provide the disposal method of handling conclusion and/or advising intending taking, print Trouble Report and file and put on record, image and relevant data that defective also will appear in this data processor 5 import and are stored in the database of road surface defect analysis software, supply the usefulness of accumulation summary, so that can instruct maintenance work in the future better.
S10) behind execution in step S7, judge whether to need to change the shooting angle of thermal infrared imager 3, if judged result is then returned step S2 for being, if judged result is then returned step S4 for not.
Compared with prior art, road surface defect detecting system and the method based on infrared imagery technique of the present utility model has following advantage:
A, infrared point temperature measurer of the prior art can only thermometric can not imaging, the utility model can thermometric can demonstrate the thermal-induced imagery of testee again, the relative prior art of its testing result is more directly perceived, quick, accurate and reliable, getting rid of for follow-up fault judgement and fault provides effective foundation, has played the effect of getting twice the result with half the effort.
B, because in fact infrared point temperature measurer of the prior art detect is that the zone on testee surface (is called tested zone, the area in this tested zone and thermometric distance is directly proportional) average temperature, so there is certain error in the accuracy of its temperature-measuring results.And the utility model at first can demonstrate the infra-red heat distribution map on whole detected road surface, can obtain simultaneously the actual temp numerical value of every bit on this infra-red heat distribution map, testing result is more directly perceived and accurate, provide intuitive and reliable foundation to failure judgement point and post-processed, this is that prior art institute is inaccessible.
C, because the measured Temperature numerical of infrared point temperature measurer of the prior art is that the infrared point temperature measurer is near more apart from the road surface at the average temperature of a surveyed area (area of this surveyed area with thermometric distance be directly proportional), the area of surveyed area is just more little; The infrared point temperature measurer is far away more apart from the road surface, and then the area of surveyed area is just big.But,, just the infrared point temperature measurer can not be installed in the position too far away apart from the road surface so it is accurate to want thermometric because the measured temperature of infrared point temperature measurer must satisfy the certain precision requirement.Like this, the each area that detects of single infrared point temperature measurer is just very limited, even install many infrared radiation thermometers additional on a detection vehicle, once also can only monitor a track, is time-consuming effort again to the complete detection of multi-lane pavement.And the tested scope that the utility model can come the conversion testee by the angle of visual field of regulating camera lens, detect when can realize the whole road surface to the speedway that for example has 4 tracks at an easy rate, this is that prior art institute is inaccessible, has improved detection efficiency and accuracy greatly.
In the above-described embodiments, the utility model is that infrared imagery technique is applied in the defects detection on flexible pavements such as the speedway that built up or other road surfaces, certain embodiment of the present utility model is not limited thereto, also this technology can be applied to the pavement construction scene of building, for the laying construction operation of flexible pavements such as speedway provides the infrared thermal imagery reference picture and the related data of the asphalt paving uniformity, guarantee construction quality.
Although the front specifically describes a plurality of exemplary embodiments of the present utility model in conjunction with the accompanying drawings, but be understandable that, within the spirit and scope of the principle of present disclosure, those skilled in the art can derive many other variations and embodiment fully.Especially, can in the scope of the disclosure, accompanying drawing and claims, the combination that is provided with to assembly and/or annex carry out multiple changes and improvements.Except that the changes and improvements of assembly and/or annex, other selectable application also are conspicuous to those skilled in the art.
Claims (10)
1. road surface defect detecting system, this system comprises:
Detect vehicle (1), on detected road surface, travel;
The Cloud Terrace (2) is arranged on this detection vehicle (1), and this The Cloud Terrace (2) horizontally rotates with respect to this detection vehicle (1) and vertically rotation;
It is characterized in that this system also comprises:
Thermal infrared imager (3) is removably disposed on this The Cloud Terrace (2), and this thermal infrared imager (3) is taken the infrared chart on described detected road surface, and the output infrared chart data signal relevant with the infrared chart that includes Temperature numerical on this detected road surface;
Master controller (4), being arranged on this detection vehicle (1) goes up and is connected with this thermal infrared imager (3) with this The Cloud Terrace (2) respectively, this master controller (4) is controlled the shooting action of this thermal infrared imager (3), and control this The Cloud Terrace (2) horizontally rotate the angle and the vertical anglec of rotation, and the infrared chart data signal of this thermal infrared imager (3) output is converted to the infrared data signal that is used for the standard network transmission; And
Data processor (5), generation exports this master controller (4) to the control signal of described thermal infrared imager (3) and with it, and receive described infrared data signal and it is analyzed and handles, with the defect type of determining described detected road surface and the position location of defective.
2. road surface according to claim 1 defect detecting system is characterized in that, this master controller (4) comprising:
Usb signal change-over panel (41), the infrared chart data signal that includes Temperature numerical that this thermal infrared imager (3) is taken is converted to usb signal;
USB interface (42) receives and transmits described usb signal; And
Data analysis and control module (43), to be converted to the described infrared data signal that is used for standard network transmission from the usb signal of this USB interface (42) and it will be sent to this data processor (5) in real time by netting twine, produce the thermal imaging system control signal according to distance measuring signal from this data processor (5), and described thermal imaging system control signal is sent to this thermal infrared imager (3) to control the shooting action of this thermal infrared imager (3), and drive signal, and described The Cloud Terrace is driven signal be sent to this The Cloud Terrace (2) to control horizontally rotating and vertically rotation of this The Cloud Terrace (2) according to producing The Cloud Terrace from the cradle head control signal of this data processor (5).
3. road surface according to claim 2 defect detecting system is characterized in that, this master controller (4) is in this thermal infrared imager (3) is arranged on a protective cover.
4. road surface according to claim 1 defect detecting system is characterized in that, this The Cloud Terrace (2) comprising:
Main body support (21) is fixedly mounted on this detection vehicle (1);
Vertically drive motors (22) is arranged in this main body support (21);
Vertically rotating mechanism (23) is arranged on this main body support (21) and upward and with this vertical drive motors (22) links, thereby vertically rotates;
Horizontal drive motor (24) is arranged in this main body support (21); And
Horizontal rotary mechanism (25), being arranged on this vertical rotating mechanism (23) upward and with this horizontal drive motor (23) links, thereby horizontally rotate, this horizontal rotary mechanism (25) vertically rotates under the drive of this vertical rotating mechanism (23) together simultaneously; And
Fixed support (26) is arranged on this horizontal rotary mechanism (25), removably fixes the fuselage of this thermal infrared imager (3).
5. road surface according to claim 1 defect detecting system is characterized in that, this data processor (5) comprising:
Data Input Interface (51) receives the infrared data signal from this master controller (4);
Data analysis module (52) is used road surface defect analysis software and is handled and data analysis carry out sectional drawing from the infrared data signal of Data Input Interface (51), determines defect type, defect location position on the detected road surface according to handling the back data; And
Memory module (53) is stored described processing back data and definite result wherein.
6. road surface according to claim 5 defect detecting system, it is characterized in that, this data processor (5) also comprises display module (54), is connected with this data analysis module (52) and the infrared chart on detected road surface, infrared data signal, defect type, defect location position and the suggestion disposal method of showing directly perceived.
7. road surface according to claim 5 defect detecting system is characterized in that, the Data Input Interface (51) of this data processor (5) carries out data by RJ45 standard network interface and this master controller (4) and transmits and network service.
8. road surface according to claim 1 defect detecting system is characterized in that, this system also comprises:
Range unit (6), be arranged on the wheel of this detection vehicle (1), this range unit (6) is connected with this data processor (5), this data processor (5) receives and is converted into distance measuring signal from the vehicle speed pulse signal of this range unit (6) and with it, again described distance measuring signal is exported to this master controller (4), make this master controller (4) generate the thermal imaging system control signal, to control the shooting action of this thermal infrared imager (3) according to described distance measuring signal.
9. road surface according to claim 1 defect detecting system is characterized in that, this system also comprises:
Data link (7) is connected with this data processor (5) with this master controller (4) respectively, to carry out network service between the two.
10. road surface according to claim 9 defect detecting system is characterized in that, this data link (7) is the router that is connected with this data processor (5) by netting twine and this master controller (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200508580U CN201896286U (en) | 2011-02-25 | 2011-02-25 | Pavement defect detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200508580U CN201896286U (en) | 2011-02-25 | 2011-02-25 | Pavement defect detection system |
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| Publication Number | Publication Date |
|---|---|
| CN201896286U true CN201896286U (en) | 2011-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011200508580U Expired - Lifetime CN201896286U (en) | 2011-02-25 | 2011-02-25 | Pavement defect detection system |
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| CN (1) | CN201896286U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182137A (en) * | 2011-02-25 | 2011-09-14 | 广州飒特电力红外技术有限公司 | Pavement defect detection system and method |
| CN106415194A (en) * | 2014-05-28 | 2017-02-15 | 河尚佑 | Road pavement damage investigation and analysis system, and road pavement damage investigation and analysis method |
| CN110161078A (en) * | 2019-05-13 | 2019-08-23 | 安徽建筑大学 | A kind of detection and evaluation method of the infra-red inspection for Modified Bitumen Pavement |
| CN111896721A (en) * | 2020-08-31 | 2020-11-06 | 杭州宣迅电子科技有限公司 | Municipal road engineering quality intelligent acceptance detection management system based on big data |
| JP2022038723A (en) * | 2020-08-27 | 2022-03-10 | 株式会社テナーク | Infrared automatic thermal analytic diagnosis method, information processing device, infrared automatic thermal analytic diagnosis system, and program |
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2011
- 2011-02-25 CN CN2011200508580U patent/CN201896286U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182137A (en) * | 2011-02-25 | 2011-09-14 | 广州飒特电力红外技术有限公司 | Pavement defect detection system and method |
| CN106415194A (en) * | 2014-05-28 | 2017-02-15 | 河尚佑 | Road pavement damage investigation and analysis system, and road pavement damage investigation and analysis method |
| CN110161078A (en) * | 2019-05-13 | 2019-08-23 | 安徽建筑大学 | A kind of detection and evaluation method of the infra-red inspection for Modified Bitumen Pavement |
| CN110161078B (en) * | 2019-05-13 | 2021-09-10 | 安徽建筑大学 | Detection and evaluation method for infrared flaw detection of modified asphalt pavement |
| JP2022038723A (en) * | 2020-08-27 | 2022-03-10 | 株式会社テナーク | Infrared automatic thermal analytic diagnosis method, information processing device, infrared automatic thermal analytic diagnosis system, and program |
| JP7160372B2 (en) | 2020-08-27 | 2022-10-25 | 株式会社テナーク | Infrared automatic thermal analysis and diagnosis method, information processing device, infrared automatic thermal analysis and diagnosis system, and program |
| CN111896721A (en) * | 2020-08-31 | 2020-11-06 | 杭州宣迅电子科技有限公司 | Municipal road engineering quality intelligent acceptance detection management system based on big data |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: GUANGZHOU SAT INFRARED TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SATA ELECTRIC POWER INFRARED TECHNOLOGY CO., LTD., GUANGZHOU |
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| CP01 | Change in the name or title of a patent holder |
Address after: 510730 No. ten Dongjiang Road, Guangzhou economic and Technological Development Zone, Guangdong Patentee after: Guangzhou SAT Infrared Technology Co., Ltd. Address before: 510730 No. ten Dongjiang Road, Guangzhou economic and Technological Development Zone, Guangdong Patentee before: Guangzhou SAT Infrared Technology Co., Ltd. |
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| CX01 | Expiry of patent term | ||
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Granted publication date: 20110713 |