CN106802415A - The detection system of Road body state - Google Patents
The detection system of Road body state Download PDFInfo
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- CN106802415A CN106802415A CN201710060175.5A CN201710060175A CN106802415A CN 106802415 A CN106802415 A CN 106802415A CN 201710060175 A CN201710060175 A CN 201710060175A CN 106802415 A CN106802415 A CN 106802415A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/885—Radar or analogous systems specially adapted for specific applications for ground probing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/12—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with electromagnetic waves
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- Radar, Positioning & Navigation (AREA)
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- Life Sciences & Earth Sciences (AREA)
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- General Life Sciences & Earth Sciences (AREA)
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Abstract
The invention discloses a kind of detection system of Road body state.Wherein, the detection system includes：Control system, for the pulse signal produced according to distance-measuring device, detection of the triggering collection system to the road body state of road；Acquisition system, is connected with control system, for the detection according to pulse signal starting to the road body state of road；Radar system is connected with acquisition system, the road body state for detecting road, obtains detecting parameter；Navigation system is connected with acquisition system, for providing position coordinates, and according to the locus generation detection track of detection；Photographic measurement system is connected with acquisition system, for each locus by shooting the road in detection process, generates road surface image；Acquisition system, is additionally operable to storage detection parameter, and detecting parameter is processed with locus and road surface image, obtains the road body status information of road.The present invention is solved due to the technical problem that can not meet Fast synchronization automation collection of the prior art.
Description
Technical field
The present invention relates to the radar exploration technique application field, in particular to a kind of detection system of Road body state
System.
Background technology
With the fast development of China's urban construction, road load is continuously increased, and roadbed cavity, structure sheaf are come to nothing, soil property
The loose performance for waiting road collapsion hidden danger to have a strong impact on road.Radar detection technique has as detection road collapsion hidden danger
Effect means, have the advantages that quick, lossless, can realize the detection and control to Urban Road Diseases, reduce by road disease
The traffic accident for leading to, is gradually used widely.
In recent years, radar detection technique achieved very fast development.Radar type is gradually from using universal GPR
Meet the onboard system of Urban Road Diseases detection demand to development and change.Radar transmits/receives non-screen of the antenna by omnidirectional radiation
Cover antenna and develop into screened shielded antanna for underground directed radiation, so as to reduce the environment pair such as the tree on ground, stone, building
The interference of result of detection.The electromagnetic signal that radar is received develops into multi-frequency by single-frequency, meets different investigation depths
With the requirement of high-resolution.
The urban road soil body Defect inspection mode developed at present can be divided into artificial mode and vehicle-mounted pattern.Though artificial mode
Right accuracy of detection is higher, but because itself limitation can not meet the urban road extensive general survey stage.Although vehicle-mounted pattern can
Detection efficiency is improved, but on the premise of hardware device ensure that electromagnetic wave remote radar detection precision is higher, vehicle-mounted system
System translational speed F-Zero is unable to superelevation 20km/h, can otherwise cause the loss of gathered data, has a strong impact on road soil body disease
The degree of accuracy of evil detection.Meanwhile, quick detection is also carried to radar data acquisition, navigator fix and photogrammetric automatic synchronization
Requirement higher is gone out.
For above-mentioned due to the problem that can not meet Fast synchronization automation collection of the prior art, not yet propose at present
Effective solution.
The content of the invention
A kind of detection system of Road body state is the embodiment of the invention provides, at least to solve due in the prior art
The technical problem that can not meet Fast synchronization automation collection.
A kind of one side according to embodiments of the present invention, there is provided detection system of Road body state, including：Radar
System, control system, acquisition system, navigation system and photographic measurement system, wherein, control system, for according to range measurement
The pulse signal that device is produced, detection of the triggering collection system to the road body state of road；Acquisition system, connects with control system
Connect, for the detection according to pulse signal starting to the road body state of road；Radar system, is connected with acquisition system, for visiting
The road body state of road is surveyed, detecting parameter is obtained；Navigation system, is connected with acquisition system, for providing position coordinates, and foundation
The locus generation detection track of detection；Photographic measurement system, is connected with acquisition system, for by shooting in detection process
Each locus of middle road, generates road surface image；Acquisition system, is additionally operable to storage detection parameter, and by detecting parameter with
Locus and road surface image are processed, and obtain the road body status information of road.
Optionally, radar system includes：Emitter, radar transmit/receive antenna, receiver and controller, wherein, emitter,
For producing probing wave；Radar transmits/receives antenna, is connected with emitter, for being carried out to the road body state of road according to probing wave
Detection；Receiver, transmits/receives antenna and is connected with radar, and for satisfying the need, body state is sampled；Controller, transmits/receives with radar respectively
Antenna radar transmit/receive antenna and receiver connection, for configure radar transmit/receive antenna radar transmit/receive antenna look-in frequency and
The sample rate of receiver.
Further, optionally, radar transmits/receives antenna and includes：Dorsad protected type the ground coupling antenna.
Optionally, receiver includes：High frequency bandwidth radar receiver, wherein, high frequency bandwidth radar receiver includes：Number/
Mould changes sampling A/D chip and delay chip, pre- for being promoted to sample rate by D/A switch sampling A/D chip and delay chip
If threshold value.
Further, optionally, receiver also includes：Sensitivity time control circuit STC or incident gain amplifying circuit
TVG。
Optionally, control system includes：Distance-measuring device and radar system control interface, wherein, distance-measuring device,
For the measurement distance of measurement road, the pulse signal just produced by measurement process generates trigger signal；Radar system is controlled
Interface, is connected with distance-measuring device, for according to trigger signal triggering radar system collection.
Further, optionally, distance-measuring device includes：Photoelectric encoder and measurement wheel, wherein, measurement wheel is used for
Detection range, and pulse signal is produced during rotation；Photoelectric encoder is coaxial with measurement wheel, for according to pulse letter
Number, generation triggering radar system opens the trigger signal of collection.
Optionally, photoelectric encoder includes：Increment type displacement detecting sensor.
Optionally, navigation system includes：Global position system GPS or triones navigation system.
Optionally, photographic measurement system includes：Video camera, wherein, video camera is installed on car body both sides and car body rear, uses
In monitoring pavement behavior.
Further, optionally, acquisition system, for being joined to radar system, navigation system and photographic measurement system
Number is set, data show and store in real time.
In embodiments of the present invention, by radar system, control system, acquisition system, navigation system and videographic measurment system
System, wherein, control system, for the pulse signal produced according to distance-measuring device, road body of the triggering collection system to road
The detection of state；Acquisition system, is connected with control system, for the spy according to pulse signal starting to the road body state of road
Survey；Radar system, is connected with acquisition system, the road body state for detecting road, obtains detecting parameter；Navigation system, and adopts
Collecting system is connected, for providing position coordinates, and according to the locus generation detection track of detection；Photographic measurement system, with
Acquisition system is connected, and for each locus by shooting the road in detection process, generates road surface image；Collection system
System, is additionally operable to storage detection parameter, and detecting parameter is processed with locus and road surface image, obtains the road body of road
Status information, has reached the purpose of Fast synchronization automation collection, it is achieved thereby that the skill of the road body detection efficient of lifting road
Art effect, and then solve due to the technical problem that can not meet Fast synchronization automation collection of the prior art.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this hair
Bright schematic description and description does not constitute inappropriate limitation of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is the structural representation of the detection system of Road body state according to embodiments of the present invention；
Fig. 2 is a kind of structural representation of the detection system of Road body state according to embodiments of the present invention；
Fig. 3 is the incremental optical-electricity encoder in a kind of detection system of Road body state according to embodiments of the present invention
A, B two-way phase of output differ 90 ° of square-wave signal schematic diagram.
Specific embodiment
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the embodiment of the present invention
Accompanying drawing, is clearly and completely described to the technical scheme in the embodiment of the present invention, it is clear that described embodiment is only
The embodiment of a part of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, should all belong to the model of present invention protection
Enclose.
It should be noted that term " first ", " in description and claims of this specification and above-mentioned accompanying drawing
Two " it is etc. for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so using
Data can exchange in the appropriate case, so as to embodiments of the invention described herein can with except illustrating herein or
Order beyond those of description is implemented.Additionally, term " comprising " and " having " and their any deformation, it is intended that cover
Lid is non-exclusive to be included, for example, the process, method, system, product or the equipment that contain series of steps or unit are not necessarily limited to
Those steps or unit clearly listed, but may include not list clearly or for these processes, method, product
Or other intrinsic steps of equipment or unit.
According to embodiments of the present invention, there is provided a kind of detection system embodiment of Road body state, it is necessary to explanation,
Can be performed in the such as one group computer system of computer executable instructions the step of the flow of accompanying drawing is illustrated, and
And, although logical order is shown in flow charts, but in some cases, can perform institute with different from order herein
The step of showing or describe.
Fig. 1 is the structural representation of the detection system of Road body state according to embodiments of the present invention, as shown in figure 1,
The detection system of the Road body state includes：Radar system 10, control system 12, acquisition system 14, navigation system 16 and take the photograph
As measuring system 18, wherein,
Control system 12, for the pulse signal produced according to distance-measuring device, triggering collection system 14 is to road
The detection of road body state；Acquisition system 14, is connected with control system 12, for according to pulse signal starting to the Lu Tizhuan of road
The detection of state；Radar system 10, is connected with acquisition system 14, the road body state for detecting road, obtains detecting parameter；Navigation
System 16, is connected with acquisition system 14, for providing position coordinates, and according to the locus generation detection track of detection；Take the photograph
As measuring system 18, it is connected with acquisition system 14, for each locus by shooting the road in detection process, generation
Road surface image；Acquisition system 14, is additionally operable to storage detection parameter, and by detecting parameter and locus and road surface image
Reason, obtains the road body status information of road.
Specifically, the embodiment of the present application provide Road body state detection system go for it is vehicle-mounted to Road
The detection process of body state, due to the spy of radar system 10 in the detection system of the Road body state of the embodiment of the present application offer
Ground radar receiver is a kind of Performance of UWB System Receiver Under of sample rate up to 200GHz/s, by high-speed AD sampling A/D chip and height
The mixing method of sampling that precision delay chip is combined, it is ensured that radar movable speed reaches 120Km/h, is greatly improved
The efficiency of road Defect inspection.
Wherein, the speed of the above-mentioned 120km/h of the embodiment of the present application be theoretical value, but actual implementation process in this speed also
By many restrictions, usual speed ensure that collecting work is normally carried out in 60km/h or so.The embodiment of the present application is carried
The detection system of the Road body state of confession is only illustrated by taking above-mentioned example as an example, to realize the road that the embodiment of the present application is provided
The detection system of Lu Luti states is defined, and does not limit specifically.
In the detection system of the Road body state that the embodiment of the present application is provided, by radar system, control system, collection
System, navigation system and photographic measurement system, wherein, control system, for the pulse signal produced according to distance-measuring device,
Detection of the triggering collection system to the road body state of road；Acquisition system, is connected with control system, for being opened according to pulse signal
The detection of the dynamic road body state to road；Radar system, is connected with acquisition system, the road body state for detecting road, obtains
Detecting parameter；Navigation system, is connected with acquisition system, for providing position coordinates, and according to the locus generation spy of detection
Survey track；Photographic measurement system, is connected with acquisition system, for each space bit by shooting the road in detection process
Put, generate road surface image；Acquisition system, is additionally operable to storage detection parameter, and by detecting parameter and locus and road surface image
Processed, obtained the road body status information of road, reached the purpose of Fast synchronization automation collection, it is achieved thereby that lifting
The technique effect of the road body detection efficient of road, so solve due to it is of the prior art can not meet Fast synchronization automation
The technical problem of collection.
Optionally, radar system 10 includes：Emitter, radar transmit/receive antenna, receiver and controller, wherein, transmitting
Machine, for producing probing wave；Radar transmits/receives antenna, is connected with emitter, for entering to the road body state of road according to probing wave
Row detection；Receiver, transmits/receives antenna and is connected with radar, and for satisfying the need, body state is sampled；Controller, received with radar respectively/
Hair antenna and receiver connection, the look-in frequency of antenna and the sample rate of receiver are transmitted/received for configuring radar.
Wherein, the emitter that the embodiment of the present application is provided, can produce a nanosecond base band pulse ripple, amplitude 300-500V,
Width 2-3ns.
Further, optionally, radar transmits/receives antenna and includes：Dorsad protected type the ground coupling antenna.
Optionally, receiver includes：High frequency bandwidth radar receiver, wherein, high frequency bandwidth radar receiver includes：Number/
Mould changes sampling A/D chip and delay chip, pre- for being promoted to sample rate by D/A switch sampling A/D chip and delay chip
If threshold value.
Further, optionally, receiver also includes：Sensitivity time control circuit STC or incident gain amplifying circuit
TVG。
Optionally, control system 12 includes：Distance-measuring device and radar system control interface, wherein, range measurement dress
Put, for the measurement distance of measurement road, the pulse signal just produced by measurement process generates trigger signal；Radar system
Control interface, is connected with distance-measuring device, for according to trigger signal triggering radar system collection.
Further, optionally, distance-measuring device includes：Photoelectric encoder and measurement wheel, wherein, measurement wheel is used for
Detection range, and pulse signal is produced during rotation；Photoelectric encoder is coaxial with measurement wheel, for according to pulse letter
Number, generation triggering radar system opens the trigger signal of collection.
Optionally, photoelectric encoder includes：Increment type displacement detecting sensor.
Optionally, navigation system 16 includes：Global position system GPS or triones navigation system.
Optionally, photographic measurement system 18 includes：Video camera, wherein, video camera is installed on car body both sides and car body rear,
For monitoring pavement behavior.
Further, optionally, acquisition system 14, for radar system 12, navigation system 16 and photographic measurement system
18 carry out parameter setting, data shows and stores in real time.
To sum up, Fig. 2 is a kind of structural representation of the detection system of Road body state according to embodiments of the present invention, such as
Shown in Fig. 2, the detection system of the Road body state that the embodiment of the present application is provided is specific as follows：
The detection system of the Road body state that the embodiment of the present application is provided includes multi-channel electromagnetic ripple remote sensing radar system
System, i.e. multi-frequency screened aerial and GPR Receiver and controller in Fig. 2, control system, road body acquisition system,
Triones navigation system, Digital Photogrammetric System.
Multi-channel electromagnetic ripple remote sensing radar system includes radar antenna, receiver and controller.To meet different depth
Detection demand, configuration shallow-layer, middle level and deep layer GPR.Shallow-layer radar center frequency is not less than 500MHz, in the radar of middle level
Frequency of heart is 200MHz, and deep layer radar center frequency is 100MHz.Radar configuration antenna is dorsad protected type the ground coupling antenna,
The backward radiation of antenna is reduced, increases front to back ratio, but also the volume of antenna can be reduced so that whole system volume subtracts
It is small, it is easy to install.GPR Receiver is a kind of Performance of UWB System Receiver Under of sample rate up to 200GHz/s, by a high speed
The mixing method of sampling that AD sampling A/D chips are combined with high accuracy delay chip, it is ensured that radar movable speed reaches 120Km/h,
It is greatly improved the efficiency of road disease detection.
Wherein, high sensitive receiver method for designing is specific as follows with technology：
For the tackling key problem of receiver key technology, in order to improve receiver sensitivity and the reception effect to radar echo signal
Rate, the technology being combined using correlation reception and high speed flash memory D/A switch A/D (Flash A/D), such that it is able to largely effective
Avoid the target inband energy in GPR product is commercialized caused by the equivalent sampling reception technique that uses from losing.Together
When, in order to better compensate for the nonlinear attenuation that lossy medium under roadbed produces to radar pulse signal, (decay is general to refer to
Number functional forms decay), also develop sensitivity-frequency control (sensitivitytime control, abbreviation STC) circuit or when
The gain of variable-gain (Time Varying Gain, abbreviation TVG) amplifying circuit, i.e. amplifier is with the pulse signal propagation time
Increase and with non-linear form (mainly exponential form) increase, effectively compensate for or lift deeper subsurface target reflection believe
Number, improve the investigation depth of radar.
Synchronous control system：Triggered by the photoelectric encoder in distance-measuring device, as the rotation of measurement wheel is produced
Raw pulse signal, pulse signal can be not only used for calculating the mileage and speed of detection car, it is also possible to as trigger signal every
A certain distance triggering GPR carries out data acquisition.All devices all should be acquired control by synchronous control unit, with
Ensure that the data of all collections are the same position of underground or ground；The trigger interval of each equipment can individually be controlled.
Synchronous control system photoelectric encoder uses increment type displacement detecting sensor.Fig. 3 is according to embodiments of the present invention
A kind of Road body state detection system in A, B two-way phase of incremental optical-electricity encoder output differ 90 ° of side
Ripple signal schematic representation.Wherein, in Fig. 3 encoders A, B two-way output pulse when A phase 90 ° of B phases in advance, photoelectric encoder up time
Pin rotates, and represents measurement wheel and advances, on the contrary then rotate counterclockwise, measurement wheel retrogressing.When measurement wheel setting in motion, timer is opened
Begin to count, be the direction of motion that can determine whether measurement wheel by AB phase demodulations, and determine to increase current count value 1 accordingly or subtract 1.Bottom
Firmware reads the count value in Timer Register, and the travel distance of vehicle can be calculated according to measurement wheel girth.
Be arranged on Rotary Optoelectrical Encoder of Incremental Type in measurement wheel, photoelectric encoder by data acquisition by measurement wheel control
It is coaxial with measurement wheel, data acquisition is carried out every certain interval triggering radar system, and the distance travelled of vehicle is recorded
Come.Vehicle stop off need not close system, realize the automation of data acquisition.
Road body acquisition system：To electromagnetic wave remote radar, high accuracy positioning equipment and photogrammetric equipment are joined
Number is set, data show and store in real time.The radar magnanimity data storage and management in underground cavity is realized, and by radar number
Merged according to spatial positional information and video information.
Triones navigation system：In real time, longitude, latitude and the height for rapidly providing target, radar and carrying platform are believed
The related data of breath.Location data plane precision is less than or equal to 10cm, and height accuracy is less than or equal between 30cm, data sampling
Every less than or equal to 0.05s.The geographical letter of three-dimensional in Road body acquisition system is transferred data to by RS232 serial modes
Breath platform, system utilizes latitude and longitude information therein, can realize detecting the tracking dynamic of car movement locus on the electronic map
Display.Latitude and longitude information is stored in database table corresponding with Coherent Noise in GPR Record simultaneously, with reference to generalized information system, can be shown
The corresponding positional information of radar data.
Digital Photogrammetric System：High-resolution camera is arranged on monitoring car both sides and at least 3, rear direction, real-time monitoring
Road obstacle situation and automated lane are recognized.Road body acquisition system platform is transferred data to by USB modes, system is real-time
Display detection road conditions, while photogrammetric information is stored in database table corresponding with Coherent Noise in GPR Record, Ke Yixian
Show the corresponding image information of radar data.
Specifically, above-mentioned multi-channel electromagnetic ripple remote sensing radar system, synchronous control system, road body acquisition system, the Big Dipper is led
Boat system, radar system 10, control system 12, acquisition system 14, navigation in Digital Photogrammetric System correspondence the embodiment of the present application
System 16 and photographic measurement system 18.
It should be noted that the embodiment of the present application is only illustrated as a example by above-mentioned, to realize what the embodiment of the present application was provided
The detection system of Road body state is defined, and does not limit specifically.
The embodiments of the present invention are for illustration only, and the quality of embodiment is not represented.
In the above embodiment of the present invention, the description to each embodiment all emphasizes particularly on different fields, and does not have in certain embodiment
The part of detailed description, may refer to the associated description of other embodiment.
In several embodiments provided herein, it should be understood that disclosed technology contents, can be by other
Mode is realized.Wherein, device embodiment described above is only schematical, such as division of described unit, Ke Yiwei
A kind of division of logic function, can there is other dividing mode when actually realizing, such as multiple units or component can combine or
Person is desirably integrated into another system, or some features can be ignored, or does not perform.Another, shown or discussed is mutual
Between coupling or direct-coupling or communication connection can be the INDIRECT COUPLING or communication link of unit or module by some interfaces
Connect, can be electrical or other forms.
The unit that is illustrated as separating component can be or may not be it is physically separate, it is aobvious as unit
The part for showing can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On unit.Some or all of unit therein can be according to the actual needs selected to realize the purpose of this embodiment scheme.
In addition, during each functional unit in each embodiment of the invention can be integrated in a processing unit, it is also possible to
It is that unit is individually physically present, it is also possible to which two or more units are integrated in a unit.Above-mentioned integrated list
Unit can both be realized in the form of hardware, it would however also be possible to employ the form of SFU software functional unit is realized.
If the integrated unit is to realize in the form of SFU software functional unit and as independent production marketing or use
When, can store in a computer read/write memory medium.Based on such understanding, technical scheme is substantially
The part for being contributed to prior art in other words or all or part of the technical scheme can be in the form of software products
Embody, the computer software product is stored in a storage medium, including some instructions are used to so that a computer
Equipment (can be personal computer, server or network equipment etc.) perform each embodiment methods described of the invention whole or
Part steps.And foregoing storage medium includes：USB flash disk, read-only storage (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), mobile hard disk, magnetic disc or CD etc. are various can be with store program codes
Medium.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (11)
1. a kind of detection system of Road body state, it is characterised in that including：Radar system, control system, acquisition system,
Navigation system and photographic measurement system, wherein,
The control system, for the pulse signal produced according to distance-measuring device, triggers the acquisition system to road
The detection of road body state；
The acquisition system, is connected with the control system, for according to the pulse signal starting to the road body of the road
The detection of state；
The radar system, is connected with the acquisition system, the road body state for detecting the road, obtains detecting parameter；
The navigation system, is connected with the acquisition system, for providing position coordinates, and according to the locus generation of detection
Detection track；
The photographic measurement system, is connected with the acquisition system, for by shooting each of the road described in detection process
Individual locus, generates road surface image；
The acquisition system, is additionally operable to store the detecting parameter, and by the detecting parameter and the locus and described
Road surface image is processed, and obtains the road body status information of the road.
2. the detection system of Road body state according to claim 1, it is characterised in that the radar system includes：
Emitter, radar transmit/receive antenna, receiver and controller, wherein,
The emitter, for producing probing wave；
The radar transmits/receives antenna, is connected with the emitter, for according to the probing wave to the road body state of the road
Detected；
The receiver, transmits/receives antenna and is connected with the radar, for being sampled to the road body state；
The controller, transmits/receives that antenna radar transmits/receives antenna and the receiver is connected with the radar respectively, for configuring
The radar transmits/receives the look-in frequency of antenna and the sample rate of the receiver.
3. the detection system of Road body state according to claim 2, it is characterised in that the radar transmits/receives antenna
Including：Dorsad protected type the ground coupling antenna.
4. the detection system of Road body state according to claim 2, it is characterised in that the receiver includes：It is high
Bandwidth radar receiver, wherein, the high frequency bandwidth radar receiver includes：D/A switch sampling A/D chip and delay chip,
For the sample rate to be promoted into predetermined threshold value by the D/A switch sampling A/D chip and the delay chip.
5. the detection system of the Road body state according to claim 2 or 4, it is characterised in that the receiver is also wrapped
Include：Sensitivity time control circuit STC or incident gain amplifying circuit TVG.
6. the detection system of Road body state according to claim 2, it is characterised in that the control system includes：
Distance-measuring device and radar system control interface, wherein,
The distance-measuring device, the measurement distance for measuring the road, the pulse signal just produced by measurement process,
Generation trigger signal；
The radar system control interface, is connected with the distance-measuring device, for described according to trigger signal triggering
Radar system is gathered.
7. the detection system of Road body state according to claim 6, it is characterised in that the distance-measuring device bag
Include：Photoelectric encoder and the measurement wheel, wherein,
The measurement wheel, for detection range, and produces the pulse signal during rotation；
The photoelectric encoder is coaxial with the measurement wheel, for according to the pulse signal, the generation triggering radar system
Open the trigger signal of collection.
8. the detection system of Road body state according to claim 7, it is characterised in that the photoelectric encoder bag
Include：Increment type displacement detecting sensor.
9. the detection system of Road body state according to claim 1, it is characterised in that the navigation system includes：
Global position system GPS or triones navigation system.
10. the detection system of Road body state according to claim 1, it is characterised in that the photographic measurement system
Including：Video camera, wherein, the video camera is installed on car body both sides and the car body rear, for monitoring the pavement behavior.
The detection system of 11. Road body states according to claim 1, it is characterised in that the acquisition system, is used for
To the radar system, the navigation system and the photographic measurement system carry out parameter setting, data and show in real time and store.
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| CN108227528A (en) * | 2017-12-25 | 2018-06-29 | 中公高科养护科技股份有限公司 | A kind of control signal output method and system |
| CN108803312A (en) * | 2018-04-19 | 2018-11-13 | 彭楷文 | A kind of new road damage detecting system |
| CN109001822A (en) * | 2018-06-15 | 2018-12-14 | 山东大学 | Vehicle-mounted removable resistivity detection system and working method suitable for urban environment |
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| CN109001839A (en) * | 2018-06-15 | 2018-12-14 | 山东大学 | A kind of vehicle-mounted Comprehensive Geophysics detection system in city and working method |
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| CN110675611B (en) * | 2019-09-17 | 2024-04-05 | 中国水利水电第四工程局有限公司 | Dam compaction monitoring system and monitoring method |
| CN110675611A (en) * | 2019-09-17 | 2020-01-10 | 中国水利水电第四工程局有限公司 | Dam compaction monitoring system and monitoring method |
| CN112985449A (en) * | 2019-12-16 | 2021-06-18 | 北京华航无线电测量研究所 | Vehicle-mounted ground penetrating radar mileage trigger device |
| CN111395125A (en) * | 2020-04-24 | 2020-07-10 | 徐州徐工养护机械有限公司 | Road detection vehicle and information processing method |
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| CN113126083A (en) * | 2021-04-29 | 2021-07-16 | 深圳安德空间技术有限公司 | Ground penetrating radar auxiliary positioning method and positioning system based on field video |
| CN115343685A (en) * | 2022-08-29 | 2022-11-15 | 北京国电经纬工程技术有限公司 | Multi-dimensional ground penetrating radar detection method, device and equipment applied to disease identification |
| CN116594011A (en) * | 2023-07-18 | 2023-08-15 | 中地华北（北京）工程技术研究院有限公司 | Combined detection method based on underground disease body remote sensing and geological radar |
| CN116594011B (en) * | 2023-07-18 | 2023-09-26 | 中地华北（北京）工程技术研究院有限公司 | Combined detection method based on underground disease body remote sensing and geological radar |
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