CN110174139A - Full size circuit road internal stress, strain-responsive data capture method and its system - Google Patents
Full size circuit road internal stress, strain-responsive data capture method and its system Download PDFInfo
- Publication number
- CN110174139A CN110174139A CN201910492607.9A CN201910492607A CN110174139A CN 110174139 A CN110174139 A CN 110174139A CN 201910492607 A CN201910492607 A CN 201910492607A CN 110174139 A CN110174139 A CN 110174139A
- Authority
- CN
- China
- Prior art keywords
- data
- module
- strain
- road
- vehicle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/0614—Improving the reliability of storage systems
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0655—Vertical data movement, i.e. input-output transfer; data movement between one or more hosts and one or more storage devices
- G06F3/0656—Data buffering arrangements
Abstract
The present invention relates to a kind of full size circuit road internal stress, strain-responsive data capture method and its systems, belong to road interior mechanics state-detection field.The sensing data of magnanimity is acquired by the data acquisition unit of front end and is sent to data convergence server by the present invention, a series of processing such as data are parsed, screen, filter by each layer data processing server of rear end again, finally obtained stress, strain-responsive information are stored to data array and are used for subsequent road correlative study.
Description
Technical field
The present invention relates to road interior mechanics state-detection field more particularly to Full-Scale Accelerated Pavement Test circuits
Road internal stress, strain-responsive data capture method and its system.
Background technique
The significant condition of road internal structure is evaluation path quality, the most direct indicator for estimating road life, however
It is difficult to obtain the time of day of road internal structure in real road.In recent years, with sensor and the hair of electronic information technology
The bottleneck that exhibition, people are in order to solve the problems, such as, starts using stress embedded inside road, strain transducer come in measurement road
The mechanical response of portion's structure, thus by true response data come to different kinds of roads mechanical model, reverse calculation algorithms and principle
Hypothesis etc. is verified.
Full-Scale Accelerated Pavement Test circuit (abbreviation full size circuit) is a kind of actual road test facility of large size, passes through paving
If the road of different structure form is controlled identical experimental condition and loaded using heavy load vehicle to road, add
The evolutionary process on its fast road surface, so as to obtain the data of road life cycle management in a relatively short period of time, for carrying out depth
Enter careful road research.A large amount of stress is embedded in each test section of full size circuit simultaneously, strain transducer is used
Mechanical state inside acquisition road.However, since stress, strain have, data volume is big, information is bigger than low, noise signal
Feature causes this kind of data to be difficult quickly and effectively to be handled and utilized.
For this purpose, the present invention proposes a kind of each structure ply stress in road inside, strain sound based on full size circuit dynamically load
The method for answering data feature values can be realized efficient process and storage to data, and obtained result can be effective
Applied to the design and verifying of road structure mechanical response model, completely new technology branch is provided for the correlative study of road structure
It holds.
Summary of the invention:
The object of the present invention is to provide a kind of road internal stress based on full size circuit dynamic loads, strain-responsive data
Obtain system and method.The sensing data of magnanimity is acquired and is sent to by the data acquisition unit of front end by the present invention
Data convergence server, then by each layer data processing server of rear end data are parsed, screen, filter etc. and is a series of
Processing, obtained stress, strain-responsive information are finally stored to data array be used for subsequent road correlative study.
Full size circuit road internal stress, strain-responsive data capture method, include the following steps:
One, data are acquired
(1) full size circuit road is divided into multiple detection sections, compression sensor and strain transducer is laid in road
The corresponding position at each detection each structure sheaf bottom of section；Vehicle inductive pick-up is arranged in road surface layer；
(2) heavy-duty vehicle is configured by test requirements document, and carries out test load, loading velocity is 40Km/ hours, is loaded daily
10 hours；
(3) car speed, the wheelbase, the number of axle of record vehicle inductive pick-up measurement, and 24 hours uninterrupted sampling pressures are answered
Force snesor and strain transducer road dynamic realtime stress, strain data.
Two, data are handled and save data
Dynamic real time data stress, strain and time are made into wavy curve, according to the waveform response time by effective wave
Splice after the interception of shape response data, then is screened and saved；
Three, display is calculated
According to the data of preservation, dynamic loads stress is realized, the baseline of strain-responsive data calculates, duration of response meter
It calculates, characteristic value calculates, responding time intervals record and load quantity record.
The road respectively detects each structure sheaf bottom of section and is sensed in addition to roadbed by compressed stress sensor, transverse strain
Three-dimension sensor matrix composed by device, longitudinal strain sensor and vertical strain transducer, base course only lay vertical pressure
Strain gauge；Each lamination strain gauge lays the underface with road wheel path.
The road, which respectively detects each structure sheaf bottom of section, a compressed stress sensor, 4 transverse strain sensors, 4
Longitudinal strain sensor and 4 vertical strain transducers；The transverse strain sensor and longitudinal strain sensor press T word
Type rearranges matrix, is laid in the side length centered on compression sensor as 4 vertex of the square of 90cm；4 perpendicular
It is laid in respectively to strain transducer on the outside of 4 transverse strain sensors.
The start bit that the road respectively detects section is equipped with vehicle by trigger, triggering collection to strain gauge and answer
The road dynamic real time data for becoming sensor is sent to step 2 and is handled.
Full size circuit road internal stress, strain-responsive data-acquisition system, including data acquisition subsystem, data processing
And save subsystem and information extraction display subsystem；
Wherein data acquisition subsystem includes vehicle data collection device, several road sections are adopted on circuit section
Acquisition means, vehicle is by trigger and data convergence server and data hard disc, and the vehicle data collection device is by vehicle
Inductive pick-up and information of vehicles processing unit two parts composition are mainly used for acquiring the information of vehicle, and wherein vehicle incudes
Sensor is embedded in road surface layer, connect with information of vehicles processing unit, for acquiring information of vehicles；Information of vehicles processing unit
It connect the data that acquisition vehicle passes through with vehicle inductive pick-up, and calculates speed, wheelbase, the number of axle for obtaining vehicle；The road
Road section acquisition device includes road internal sensor and Dynamic Data Acquiring unit, the Dynamic Data Acquiring unit collecting vehicle
By when the road internal stress, the strain data that are measured by road internal sensor；The vehicle is located at vehicle by trigger
On traveling road and it is located at road internal sensor front end, vehicle acquires number by flip-flop toggle Dynamic Data Acquiring unit
According to and be sent to data convergence server and data hard disc；The data convergence server is located at data center machine room, receives dynamic
The information of vehicles that the data file and vehicle data collection device that state data acquisition unit is sent are sent, the data hard disc
Interim receive saves the data file that Dynamic Data Acquiring unit interrupts transmission；
The data processing and preservation subsystem include data resolution server, data screening server, data prediction
Server and data storage server；The data resolution server, is made of file acquisition module, data resolution module, institute
File acquisition module is stated, is mainly used for obtaining the data file of Dynamic Data Acquiring unit transmission, data resolution module is main to use
Corresponding stress, strain data are resolved in data file, and gives the data real-time delivery after parsing to data screening server；
The data screening server, is made of waveform detecting module and data interception module, and the waveform detecting module is by each structure
Ply stress, strain data obtain the correct time of dynamic loads response wave shape when load vehicle passes through, and send it to number
According to interception module；The time of waveform and car speed, the number of axle, wheelbase, interception are corresponding each according to response for data cutout module
Sensing data；The data prediction server, by data splicing module, data filtering module, abnormal data elimination module
Composition；Data splicing module will mainly intercept each response wave shape data and be spliced into the data flow completed, and send in real time
Give data filtering module；The data filtering module is mainly used for stress obtained, strain-responsive data being filtered drop
The noise signal of low data, and give filtered data transmission to abnormal data elimination module, the abnormal data elimination module,
It is mainly used for deleting improper data, and result is stored in data storage server；
The information extraction display subsystem is calculated by baseline computing module, duration of response computing module, characteristic value
Module, responding time intervals logging modle and load quantity logging modle composition；Baseline computing module, duration of response calculate mould
Block, characteristic value calculating module and data storage server connect, and read data, and calculate corresponding characteristic value；Responding time intervals note
Record module and load quantity logging modle are connect with characteristic value calculating module respectively, and the result based on characteristics extraction records dynamic
The responding time intervals of load and the number of dynamic loads.
The road internal sensor includes that a compressed stress sensor at each structure sheaf bottom of road, 4 transverse directions are answered
Become sensor, 4 longitudinal strain sensors and 4 vertical strain transducers；The transverse strain sensor and longitudinal strain
Sensor rearranges matrix by T font, is laid in the side length centered on compression sensor as square 4 of 90cm
Vertex；4 vertical strain transducers are laid in respectively on the outside of 4 transverse strain sensors.
The Dynamic Data Acquiring unit include at least 64 tunnels data acquisition channel, network communication interface and data it is hard
Disk interface, data acquiring frequency 2000Hz；Wherein data acquisition channel connects stress, strain sensing in a manner of one-to-one
Device；Network communication interface transfers data to data convergence server for connecting the network equipment；Data hard disc interface is for connecting
Connect external data hard disk.
The data processing and preservation subsystem further include multi-stage data cache server, are made of three-level data buffer storage；
Wherein level one data caching write data port, data reading port respectively with the data resolution module and number of data resolution server
According to the data cutout module connection of screening server；Secondary data caching write data port, data reading port respectively with data
Screen the data cutout module of server and the data splicing module connection of data prediction server；Three-level data buffer storage is write
Data port is connect with the abnormal data elimination module of data prediction server, and data reading port and information extraction show subsystem
Baseline computing module, duration of response computing module, characteristic value calculating module connection and the data storage server of system connect
It connects.
The data storage server is made of data read module, data compressing module and data memory module；Its
Middle data read module is connect with the three-level data buffer storage and data compressing module of multi-stage data cache server, different for reading
Stress, strain dynamic loads response traffic after constant value rejecting, and it is transferred to data compressing module；Data compressing module
It is connect respectively with data read module, data memory module, the data memory module includes Large Volume Data disk storage battle array
Column, for storing compressed data into Large Volume Data disk memory array.
System of the invention includes following part
Full size circuit road internal stress, strain-responsive data-acquisition system, including following 10 parts: data acquisition
System (vehicle data collection device, road section acquisition device), data processing and save subsystem (data convergence server,
Data resolution server, data screening server, multi-stage data cache server, data prediction server, data storage clothes
Business device) and information extraction display subsystem.
The vehicle data collection device is made of vehicle inductive pick-up and information of vehicles processing unit two parts,
It is mainly used for acquiring the information of vehicle, and is used for the data processing in later period.Wherein vehicle inductive pick-up is embedded in road surface layer,
It is connect with information of vehicles processing unit, for acquiring information of vehicles；Information of vehicles processing unit is connect with vehicle inductive pick-up
The data that vehicle passes through are acquired, and calculates the speed for obtaining vehicle, wheelbase, the number of axle and data convergence service is sent to by network
Device.
The road section acquisition device is located at each section of road, by road internal sensor, Dynamic Data Acquiring list
Member, vehicle are made up of trigger and data hard disc, are mainly used for acquiring road internal stress, dependent variable when vehicle passes through
According to, and data convergence server is sent to by network.
Wherein road internal sensor be by compression sensor, transverse strain sensor, longitudinal strain sensor and
A three-dimension sensor matrix composed by vertical strain transducer, is mainly used for the physical responses pick-up of road internal structure
For corresponding standard electric signal, so that Dynamic Data Acquiring unit carries out data acquisition.It is every in addition to roadbed when sensor is laid
It is perpendicular that a structure sheaf is laid with 4 transverse strain sensors, 4 longitudinal strain sensors, 4 vertical strain transducers and 1
To compression sensor；Base course only lays compressed stress sensor.Each lamination strain gauge is laid and road wheel path
Underface；Every layer of 4 pairs of transverse strain sensors and longitudinal strain sensor rearrange matrix by T font, be laid in
4 vertex of the square that the side length centered on compression sensor is 90cm；4 vertical strain transducers are laid in 4 respectively
On the outside of transverse strain sensor.
Dynamic Data Acquiring unit includes that the data acquisition channel, network communication interface at least 64 tunnels and data hard disc connect
Mouthful, data acquiring frequency 2000Hz.It is mainly used for being converted to the analog electrical signal of sensor into digital signal progress file
Form storage, and it is sent to data convergence server after storing.Wherein data acquisition channel connects answer in a manner of one-to-one
Power, strain transducer；Network communication interface transfers data to data convergence server for connecting the network equipment；Data hard disc
Interface is mainly used for the data temporary storage when network interruption, data is avoided to lose for connecting external hard disc class storage equipment
It loses.
Data hard disc is connect by USB interface with Dynamic Data Acquiring unit, and data when for network interruption are temporarily deposited
Storage.
Vehicle by trigger by being connect with Dynamic Data Acquiring unit, for judging passing through for vehicle, when there is vehicle
By when carry out data transmission preservation.Although acquiring equipment is non-stop run in 24 hours, but be not the number all acquisitions
According to server is all sent to, data valid data when enabling a device to pass through on vehicle by trigger are sent to server
(other time, which only acquires, not to be stored, does not transmit), to save data transmission, storage and calculate cost.
The data convergence server is located at data center machine room, receives Dynamic Data Acquiring unit by network and sends
Data file and vehicle data collection device send information of vehicles, data convergence server can receive multiple simultaneously
The data of Dynamic Data Acquiring unit have several dynamic acquisition units on entire road.
The data resolution server, is made of file acquisition module, data resolution module, is converged by network and data
Server connection.File acquisition module is mainly used for obtaining the data file of Dynamic Data Acquiring unit transmission；Data parse mould
Block is mainly used for file it and resolves to corresponding stress, strain data, and gives data to sieve the data real-time delivery after parsing
Election server, while saving into the level one data caching of multi-stage data cache server.
The data screening server is made of waveform detecting module, data cutout module.Waveform detecting module is by dividing
It analyses each structure sheaf strain gauge data and obtains load vehicle when passing through, the correct time (precision of dynamic loads response wave shape
0.5ms), and data cutout module is sent it to；Data cutout module according to response adopt by the time of waveform and vehicle data
The load car speed of acquisition means acquisition, the number of axle, wheelbase information, and read level one data in multi-stage data cache server and cache
In corresponding each sensing data intercepted, and stored to secondary data caching in.
The data prediction server, by data splicing module, data filtering module, abnormal data elimination module group
At.Data splicing module be mainly used for caching secondary data in each response wave shape data be spliced into the data of a completion
Stream, and it is sent to data filtering module in real time.Data filtering module is mainly used for stress obtained, strain-responsive data
It is filtered the noise signal for reducing data, and gives filtered data transmission to abnormal data elimination module.Abnormal data picks
Except module, it is mainly used for deleting improper data, and result is stored into three-level data buffer storage.
The multi-stage data cache server, is made of three-level data buffer storage.What wherein level one data cached writes data terminal
Mouthful, the data reading port data cutout module with the data resolution module of data resolution server and data screening server respectively
Connection；Secondary data caching write data port, data reading port respectively with the data cutout module of data screening server and
The data splicing module of data prediction server connects；Three-level data buffer storage writes data port and data prediction server
The connection of abnormal data elimination module, data reading port and data information extract the baseline computing module of server, response continues
The data read module connection of time computing module, characteristic value calculating module connection and data storage server.
The data storage server is made of data read module, data compressing module and data memory module.Its
Middle data read module is connect with the three-level data buffer storage and data compressing module of multi-stage data cache server, different for reading
Stress, strain dynamic loads response traffic after constant value rejecting, and it is transferred to data compressing module；Data compressing module
It is connect with data read module, data memory module, improves storage efficiency for data flow to be carried out compression；Data memory module
Including Large Volume Data disk memory array, for storing compressed data into Large Volume Data disk memory array.
The Large Volume Data disk memory array, connect with the data memory module in data storage server, uses
It is stored in the dynamic loads response data to road internal stress, strain, in case the research application of subsequent road.
The information extraction display subsystem is calculated by baseline computing module, duration of response computing module, characteristic value
Module, responding time intervals logging modle and load quantity logging modle composition.Baseline computing module, duration of response calculate mould
Block, characteristic value calculating module, which are directly connect with the three-level data buffer storage in multi-stage data cache server, reads data, and calculates
Corresponding characteristic value.Responding time intervals logging modle and load quantity logging modle are connect with characteristic value calculating module respectively, are based on
The responding time intervals of the result record dynamic loads of characteristics extraction and the number of dynamic loads.
The detailed process of the method for the present invention is as follows:
(1) sensor is laid in the corresponding position at each structure sheaf bottom of road according to attached drawing 1；
(2) vehicle data collection device is set to inside road；
(3) the dynamic acquisition unit of each actual road test section is set to trackside, each corresponding channel of sensor signal lines
Connection, and connect external hard disk and vehicle passes through trigger；
(4) heavy-duty vehicle is configured by test requirements document, and carries out test load, loading velocity is 40Km/ hours, is loaded daily
10 hours；
(5) dynamic acquisition unit in real time will acquisition data transmission to data server, dynamic acquisition unit 24 hours not between
Disconnected acquisition；
(6) the file acquisition module of data resolution server reads data in data server by network in chronological order
File passes to data resolution module；
(7) after the data resolution module of data resolution server receives data file, each sensor number is converted thereof into
According to, and transfer data to the waveform detecting module of data screening server；
(8) when the waveform detecting module of data screening server obtains waveform response according to every ply stress sensing data
Between, and the data cutout for being transferred to data screening server touches block；
(9) the data cutout module of data screening server intercepts effective response data according to the waveform response time,
And pass it to the secondary data caching of multi-stage data cache server；
(10) the data splicing module of data prediction server reads the data of secondary data caching, and data are carried out
Splicing, and pass it to data filtering module；
(11) data filtering module is filtered the data flow spliced, and passes it to abnormal data elimination
Module；
(12) abnormal data elimination module rejects improper data according to rule, and by the data prediction data of completion
Deposit the three-level data buffer storage for being sent to multi-stage data cache server；
(13) data in three-level data buffer storage are read out, compress and store to large capacity number by data storage server
According to disk memory array, for subsequent scientific research；
(14) data information extracts the data in server reading three-level data buffer storage, and realizes dynamic loads stress, answers
Become the baseline calculating of response data, duration of response calculates, characteristic value calculates, responding time intervals record and load quantity record.
Effect of the invention:
(1) by be arranged data convergence server can obtain simultaneously all test sections data and the holding time it is same
Step.
Since test data amount is huge, existing circuit stress, strain data acquisition can only often carry out the fixation of single-point
The hand data collection of time.Will lead to loss of data in this way, and the time synchronization of data difficult to realize so that it is subsequent into
Row generates deviation when calculating analysis.The present invention passes through setting data convergence server, effective solution the adopting of large-scale data
Time synchronization problem between collection convergence and data.
(2) invalid data is reduced by trigger by setting vehicle and improves collecting efficiency.
Since dynamic acquisition unit is acquired with the frequency of 2000Hz, daily all test sections of full size circuit will be generated
The data of 1TB.Can be realized by setting vehicle by trigger will be sent to when vehicle passes through by the data file at moment
Data convergence server can reduce by 50% invalid data.
(3) data-handling capacity is effectively improved using the system architecture of multi-level buffer and discrete
Since the data volume acquired daily is huge, required data-handling capacity is also very huge, and traditional
Work in series mode is extremely difficult to the requirement of data processing, the data that the same day generates can not in the limited situation of hardware resource
Processing is completed.The present invention splits work in series task by using multi-level buffer and the system architecture of discrete, in conjunction with
Multi-level buffer is that entire flow chart of data processing is made to switch to parallel processing mode, greatly improves data-handling capacity.
Detailed description of the invention
Fig. 1 full size circuit system layout
Wherein, D1-D23 is Dynamic Data Acquiring unit, and STR1-STR23 is 23 each sections, and P1-P23 is that vehicle passes through touching
Device is sent out, VC is information of vehicles processing unit；
Fig. 2 present system structure chart
Fig. 3 sensor installation position
Wherein, 37- strain gauge, 38- transverse strain sensor, 39- longitudinal strain sensor, 40- vertically strain biography
Sensor；
Fig. 4 the method for the present invention flow chart
Fig. 5 saves original data waveform figure
Data waveform figure after Fig. 6 splicing
Fig. 7 mono- complete response wave shape figure
Specific embodiment
Below with reference to example, the present invention is described in further detail.
Full size circular track test load carries out 10 hours daily, and 6 load vehicles load simultaneously, and sensor frequency acquisition is
2000Hz, it is about 1TB that data generate total amount daily.
Content according to the present invention, specific implementation step are as follows:
(1) data file when dynamic acquisition unit passes through load vehicle is sent to data convergence server；
(2) temporally data obtain data text from data server one by one to the file read module of data resolution server
Part；
(3) data resolution module by raw data file carry out format parsing, obtain road structure internal stress, strain
Real-time response data；
(4) waveform detecting module carries out the detection of dynamic response waveform according to the response data of strain gauge；
(5) feature of data cutout module waveform according to response, determines initial time and intercepts response wave shape data, intercepts
Time is 3 seconds (1 second before waveform sensing point, 2 seconds latter)；
(6) data splicing module splices the data after all interceptions；
Some day one section data, normal condition is a file per minute, altogether 1440 files；Vehicle triggering
This 1440 files are exactly reduced, so that it is without storage in no load.Fig. 5 is the file of storage in one minute, can be with
See that the work of interception is exactly that the two waveform extractings are come out only there are two waveform in a file.Then, all interceptions
Waveform concatenation out is at a data flow, as shown in Figure 6.
(7) data filtering module is filtered spliced data；
(8) abnormal data elimination module deletion error data；
(9) data in three-level data buffer storage are read out, compress and store to large capacity number by data storage server
According to disk memory array；
(10) data information extracts the data in server reading three-level data buffer storage, and realizes dynamic loads stress, answers
Become the baseline calculating of response data, duration of response calculates, characteristic value calculates, responding time intervals record and load quantity record.
See Fig. 7.
Fig. 7 show a complete response wave shape data, is calculated according to the data of waveform front end by iterative algorithm
The baseline of waveform is used to know the level of response front sensor；Duration of response begins to ramp up the time to number by calculating data
It is obtained according to the time interval after stabilization；Characteristic value is then obtained by peak detection algorithm, and the road model for the later period is studied；It rings
Answer interval time this be with two adjacent response wave shapes at the beginning of subtract each other to obtain；Load quantity is exactly to ring in the unit time
Answer the quantity of waveform.
Calculate by Fig. 7 data: baseline is -4.1492, and the duration is -710ms (sample frequency 2000Hz, i.e., 1 second
2000 data), characteristic value -4.328,4.163,4.425,4.289,4.417；Calculate by Fig. 6: responding time intervals are 6.93 seconds,
Load quantity -94/hour (Fig. 6 is half an hour data, totally 47 waveforms).
Claims (8)
1. full size circuit road internal stress, strain-responsive data capture method, include the following steps:
One, data are acquired
(1) full size circuit road is divided into multiple detection sections, compression sensor and strain transducer is laid in road and respectively examined
Survey the corresponding position at each structure sheaf bottom of section；Vehicle inductive pick-up is arranged in road surface layer；
(2) heavy-duty vehicle is configured by test requirements document, and carries out test load, loading velocity is 40Km/ hours, and load 10 is small daily
When,
(3) car speed, the wheelbase, the number of axle of record vehicle inductive pick-up measurement, and 24 hours uninterrupted sampling compression pass
Sensor and strain transducer road dynamic realtime stress, strain data；
Two, data are handled and save data
Dynamic real time data stress, strain and time are made into wavy curve, rung effective waveform according to the waveform response time
Splice after answering data cutout, then is screened and saved；
Three, display is calculated
According to the data of preservation, realize dynamic loads stress, the baseline of strain-responsive data calculates, duration of response calculates,
Characteristic value calculates, responding time intervals record and load quantity record,
The road respectively detects each structure sheaf bottom of section in addition to roadbed by compressed stress sensor, transverse strain sensor, vertical
To three-dimension sensor matrix composed by strain transducer and vertical strain transducer, base course only lays compressed stress biography
Sensor；Each lamination strain gauge lays the underface with road wheel path.
2. according to the method described in claim 1, the road, which respectively detects each structure sheaf bottom of section, a compressed stress sensing
Device, 4 transverse strain sensors, 4 longitudinal strain sensors and 4 vertical strain transducers；The transverse strain sensing
Device rearranges matrix by T font with longitudinal strain sensor, is laid in the side length centered on compression sensor as 90cm
Square 4 vertex；4 vertical strain transducers are laid in respectively on the outside of 4 transverse strain sensors.
3. according to the method described in claim 1, vehicle passes through trigger by connecting with Dynamic Data Acquiring unit, for sentencing
Disconnected vehicle passes through, when have vehicle by when carry out data transmission preservation.
4. the full size circuit road internal stress of -3 either method design, strain-responsive data-acquisition system according to claim 1,
Including data acquisition subsystem, data processing and save subsystem and information extraction display subsystem；
Wherein data acquisition subsystem includes vehicle data collection device, is located at several road sections acquisition dress on circuit section
It sets, vehicle is incuded by trigger and data convergence server and data hard disc, the vehicle data collection device by vehicle
Sensor and information of vehicles processing unit two parts composition are mainly used for acquiring the information of vehicle, wherein vehicle induction sensing
Device is embedded in road surface layer, connect with information of vehicles processing unit, for acquiring information of vehicles；Information of vehicles processing unit and vehicle
The data that inductive pick-up connection acquisition vehicle passes through, and calculate speed, wheelbase, the number of axle for obtaining vehicle；The road is disconnected
Face acquisition device includes road internal sensor and Dynamic Data Acquiring unit, and the Dynamic Data Acquiring unit acquisition vehicle is logical
Out-of-date road internal stress, the strain data measured by road internal sensor；The vehicle is located at vehicle row by trigger
On the road and positioned at road internal sensor front end, vehicle passes through access, and vehicle passes through flip-flop toggle Dynamic Data Acquiring unit
Acquisition data are simultaneously sent to data convergence server and data hard disc；The data convergence server is located at data center machine room,
Receive the data file that Dynamic Data Acquiring unit is sent and the information of vehicles that vehicle data collection device is sent, the number
It is temporarily received according to hard disk and saves the data file that Dynamic Data Acquiring unit interrupts transmission；
The data processing and preservation subsystem include data resolution server, data screening server, data prediction service
Device and data storage server；The data resolution server, is made of file acquisition module, data resolution module, the text
Part obtains module, is mainly used for obtaining the data file of Dynamic Data Acquiring unit transmission, data resolution module is mainly used for counting
It is corresponding stress, strain data according to document analysis, and gives the data real-time delivery after parsing to data screening server；It is described
Data screening server is made of waveform detecting module and data interception module, and the waveform detecting module is answered by each structure sheaf
Power, strain data obtain the correct time of dynamic loads response wave shape when load vehicle passes through, and send it to data and cut
Modulus block；Data cutout the module time of waveform and car speed, the number of axle, wheelbase according to response intercept corresponding each sensing
Device data；The data prediction server is made of data splicing module, data filtering module, abnormal data elimination module；
Data splicing module will mainly intercept each response wave shape data and be spliced into the data flow completed, and be sent to data in real time
Filter module；The data filtering module is mainly used for stress obtained, strain-responsive data being filtered reduction data
Noise signal, and give filtered data transmission to abnormal data elimination module, the abnormal data elimination module is main to use
It is deleted in by improper data, and result is stored in data storage server；
The information extraction display subsystem by baseline computing module, duration of response computing module, characteristic value calculating module,
Responding time intervals logging modle and load quantity logging modle composition；Baseline computing module, duration of response computing module, feature
Value computing module is connect with data storage server, reads data, and calculate corresponding characteristic value；Responding time intervals logging modle and
Load quantity logging modle is connect with characteristic value calculating module respectively, the sound of the result record dynamic loads based on characteristics extraction
It should be spaced and the number of dynamic loads.
5. system according to claim 4, the road internal sensor includes that one of each structure sheaf bottom of road is vertical
Compression sensor, 4 transverse strain sensors, 4 longitudinal strain sensors and 4 vertical strain transducers；The cross
Matrix is rearranged by T font to strain transducer and longitudinal strain sensor, is laid in centered on compression sensor
4 vertex of the square that side length is 90cm；4 vertical strain transducers are laid in respectively on the outside of 4 transverse strain sensors.
6. system according to claim 1, the Dynamic Data Acquiring unit include at least the data acquisition channel on 64 tunnels,
Network communication interface and data hard disc interface, data acquiring frequency 2000Hz；Wherein data acquisition channel is with one-to-one
Mode connects stress, strain transducer；Network communication interface transfers data to data convergence service for connecting the network equipment
Device；Data hard disc interface is for connecting external data hard disk.
7. system according to claim 1, the data processing and preservation subsystem further include multi-stage data buffer service
Device is made of three-level data buffer storage；Wherein write data port, the data reading port of level one data caching parse clothes with data respectively
The data cutout module connection of the data resolution module and data screening server of business device；Secondary data caching writes data terminal
Mouth, data reading port splice mould with the data cutout module of data screening server and the data of data prediction server respectively
Block connection；The data port of writing of three-level data buffer storage is connect with the abnormal data elimination module of data prediction server, reading
According to baseline computing module, the duration of response computing module, characteristic value calculating module of port and information extraction display subsystem
Connection and data storage server connection.
8. system according to claim 7, the data storage server, by data read module, data compressing module
And data memory module composition；The wherein three-level data buffer storage and data of data read module and multi-stage data cache server
Compression module connection for reading the stress after abnormality value removing, strain dynamic loads response traffic, and is transferred to number
According to compression module；Data compressing module is connect with data read module, data memory module respectively, the data memory module packet
Large Volume Data disk memory array is included, for storing compressed data into Large Volume Data disk memory array.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910492607.9A CN110174139B (en) | 2019-06-06 | 2019-06-06 | Method and system for acquiring internal stress and strain response data of full-scale circular road |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910492607.9A CN110174139B (en) | 2019-06-06 | 2019-06-06 | Method and system for acquiring internal stress and strain response data of full-scale circular road |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110174139A true CN110174139A (en) | 2019-08-27 |
| CN110174139B CN110174139B (en) | 2021-03-12 |
Family
ID=67698006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910492607.9A Active CN110174139B (en) | 2019-06-06 | 2019-06-06 | Method and system for acquiring internal stress and strain response data of full-scale circular road |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110174139B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113063683A (en) * | 2021-03-10 | 2021-07-02 | 北京科技大学 | Road surface structure service behavior contrast test method based on accelerated loading test |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104199410A (en) * | 2014-08-27 | 2014-12-10 | 重庆大学 | Bridge-structure universal acquisition control system for health monitoring |
| US20170139922A1 (en) * | 2015-11-18 | 2017-05-18 | Institute For Information Industry | Data processing server and data processing method thereof |
| CN206189245U (en) * | 2016-08-09 | 2017-05-24 | 山西省交通科学研究院 | Highway bituminous pavement structure real -time supervision device |
| CN206944922U (en) * | 2017-07-21 | 2018-01-30 | 山东大学 | A kind of road strain parameter automatic acquisition device based on Radio Transmission Technology |
| CN206944921U (en) * | 2017-07-21 | 2018-01-30 | 山东大学 | A kind of road strain parameter automatic acquisition device based on mass-memory unit |
-
2019
- 2019-06-06 CN CN201910492607.9A patent/CN110174139B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104199410A (en) * | 2014-08-27 | 2014-12-10 | 重庆大学 | Bridge-structure universal acquisition control system for health monitoring |
| US20170139922A1 (en) * | 2015-11-18 | 2017-05-18 | Institute For Information Industry | Data processing server and data processing method thereof |
| CN206189245U (en) * | 2016-08-09 | 2017-05-24 | 山西省交通科学研究院 | Highway bituminous pavement structure real -time supervision device |
| CN206944922U (en) * | 2017-07-21 | 2018-01-30 | 山东大学 | A kind of road strain parameter automatic acquisition device based on Radio Transmission Technology |
| CN206944921U (en) * | 2017-07-21 | 2018-01-30 | 山东大学 | A kind of road strain parameter automatic acquisition device based on mass-memory unit |
Non-Patent Citations (1)
| Title |
|---|
| 管志光: "足尺路面加速加载试验系统的研究", 《中国博士学位论文全文数据库工程科技II辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113063683A (en) * | 2021-03-10 | 2021-07-02 | 北京科技大学 | Road surface structure service behavior contrast test method based on accelerated loading test |
| CN113063683B (en) * | 2021-03-10 | 2022-03-04 | 北京科技大学 | Road surface structure service behavior contrast test method based on accelerated loading test |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110174139B (en) | 2021-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104731879B (en) | A kind of highway fee evasion vehicles behavioral data analysis method | |
| CN106017621B (en) | One kind being based on the not parking detection system of RFID automobile overload and detection method | |
| CN110210149A (en) | A kind of road internal stress, strain Dynamic Response Information obtain system and method | |
| CN109163790B (en) | Vehicle dynamic weighing system and method based on multiple sensors | |
| CN109545242A (en) | A kind of audio data processing method, system, device and readable storage medium storing program for executing | |
| CN106534344A (en) | Cloud platform video processing system and application method thereof | |
| CN101051334A (en) | Structure health monitoring and information managing system and its method | |
| CN106919675A (en) | A kind of date storage method and device | |
| CN110174139A (en) | Full size circuit road internal stress, strain-responsive data capture method and its system | |
| CN102510287A (en) | Method for rapidly compressing industrial real-time data | |
| CN101598528A (en) | A kind of dynamic signal acquisition processing device | |
| CN115375202A (en) | Railway tunnel engineering safety detection method and system | |
| WO2018233000A1 (en) | Fee collecting management method and system under multi-parking lot scenario | |
| WO2018233002A1 (en) | Method and system for integrating parking management and fee collection | |
| CN106841912B (en) | The accurate positioning auxiliary device and method of power cable fault | |
| CN111721263A (en) | Management method and system for detecting building settlement | |
| CN112146901A (en) | Rail vehicle collision test system | |
| CN111309977A (en) | ID space-time trajectory matching method and device | |
| CN207718361U (en) | PCM signal harvester and system | |
| CN106599326B (en) | Recorded data duplication eliminating processing method and system under cloud architecture | |
| CN115525703A (en) | Data comparison method, data synchronization device and medium for heterogeneous database | |
| CN102565306B (en) | Measuring device and measuring method for roadbed wheel track | |
| CN203966335U (en) | Many characteristic quantities comprehensive traffic detection system of facing multiple users group | |
| CN112533164A (en) | Method for improving transmission bandwidth of vibration data in reliability test | |
| CN1395223A (en) | Fingerprint patrol system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |