阅读说明：本技术 一种基于多束超声波探测的虚铺厚度检测系统及方法 (System and method for detecting virtual pavement thickness based on multi-beam ultrasonic detection ) 是由 汤为序 段小祥 于 2021-07-20 设计创作，主要内容包括：本发明公开了一种基于多束超声波探测的虚铺厚度检测系统,用于摊铺机械上,包括有：探测设备,用于测量当前各个超声波探测器的离地高度,获取高度数据信息,并基于当前位置所得到的高度数据信息传输给控制端；连接部,用于固定连接超声波探测器；定位装置,用于实时定位连接杆所在位置,获取位置数据信息,并将位置数据信息传输给控制端；控制端,接收当前位置的位置数据信息和当前各个超声波探测器的高度数据信息,并基于接收的位置数据信息和高度数据信息进行计算；所述的摊铺机械为具有熨平板的摊铺设备；该基于多束超声波探测的虚铺厚度检测系统自动化检测、精度高、动态连续检测。(The invention discloses a virtual pavement thickness detection system based on multi-beam ultrasonic detection, which is used for paving machinery and comprises: the detection equipment is used for measuring the ground clearance of each current ultrasonic detector, acquiring height data information and transmitting the height data information obtained based on the current position to the control end; the connecting part is used for fixedly connecting the ultrasonic detector; the positioning device is used for positioning the position of the connecting rod in real time, acquiring position data information and transmitting the position data information to the control end; the control end receives the position data information of the current position and the height data information of each current ultrasonic detector and calculates based on the received position data information and the received height data information; the paving machine is a paving device with a screed plate; the system for detecting the virtual pavement thickness based on the multi-beam ultrasonic detection has the advantages of automatic detection, high precision and dynamic continuous detection.)

1. A virtual pavement thickness detection system based on multi-beam ultrasonic detection is used on paving machinery, and is characterized by comprising:

the detection equipment is used for measuring the ground clearance of each current ultrasonic detector, acquiring height data information, transmitting the height data information obtained based on the current position to the control end, comprises at least four ultrasonic detectors and is respectively arranged at the front end position and the rear end position of the paving machine;

the connecting part is used for fixedly connecting the ultrasonic detector, comprises two connecting rods and is fixedly arranged at two ends of an ironing plate of the paving machine;

the positioning devices are used for positioning the positions of the connecting rods in real time, acquiring position data information and transmitting the position data information to the control end, and two groups of the positioning devices are arranged;

the control end receives the position data information of the current position and the height data information of each current ultrasonic detector, calculates based on the received position data information and the received height data information, and stores the obtained result data information;

the paving machine is paving equipment with a screed plate, the two ends of the screed plate are an A end and a B end and respectively correspond to the left end and the right end of an advancing route of the paving machine, and the connecting rod is arranged at the left end and the right end of the screed plate.

2. The multi-beam ultrasound detection-based false thickness detection system of claim 1, wherein: and the two groups of positioning devices are arranged in the middle of the connecting rod and are positioned at the same coordinate position with the screed of the paving machine.

3. The multi-beam ultrasound detection-based false thickness detection system of claim 1, wherein: each ultrasonic detector is respectively connected with two connecting rods, and the connecting position extends outside the ironing plate.

4. The multi-beam ultrasound detection-based false thickness detection system of claim 1, wherein: the positioning device and the detection equipment are respectively connected with the control end by data transmission.

5. The multi-beam ultrasound detection-based false thickness detection system of claim 1, wherein: the ultrasonic detectors are arranged at the front and back positions of the two ends of the ironing plate, and the collecting heads of the ultrasonic detectors are arranged downwards.

6. A method of detection according to any one of claims 1 to 5, comprising the steps of:

1) acquiring the ground clearance data information of the acquisition heads of all the current ultrasonic detectors through detection equipment, and sending the height data information to a control end;

2) acquiring position data information of each connecting rod through a positioning device, and sending the position data information to a control end;

3) after receiving the position data information, the control end calculates the position data information of each ultrasonic detector and records and stores the position data information;

4) the control end detects a virtual paving thickness value of the current position based on the received height data information;

5) the control end matches and stores the judged virtual paving thickness value with the position data information;

6) repeating the operations from the step 1) to the step 5) while the paving machine advances until the detection of the planned road section is completed.

7. The inspection method as claimed in claim 6, wherein in step 1), the inspection equipment is provided with two ultrasonic detectors A1 and A2 at the A end and two ultrasonic detectors B1 and B2 at the B end respectively, and the two ultrasonic detectors are arranged at the front and back of the A end along the paving traveling direction.

8. The detecting method as claimed in claim 6, wherein in step 2), said positioning device is a GPS positioning device with PPS clock synchronization function.

9. The method of claim 8, wherein in step 4), the virtual pavement thickness is obtained by:

when the ultrasonic detectors A1 and B1 pass through the section L, the distances between the probes and the roadbed are Ha1 and Hb1 respectively obtained by detection of the ultrasonic detectors, along with the advancing of the paving machine, the ultrasonic detectors A2 and B2 pass through the section L, the distances between the probes of the ultrasonic detectors and the virtual pavement are Ha2 and Hb2 respectively obtained by detection, the difference solution is calculated, HA-Ha 1-Ha2 and HB-Hb 1-Hb2 are obtained, and HA and HB are virtual pavement thickness values at two ends of the section L respectively.

10. The detection method according to claim 6, wherein in step 5), the position data information, the height data information and the virtual tile thickness value are transmitted in synchronization.

Technical Field

The invention relates to a system and a method for detecting a virtual pavement thickness based on multi-beam ultrasonic detection.

Background

The existing detection technology method for the paving thickness of the false pavement mainly comprises 2 methods:

1) open hole sampling measurement

Inserting the paving material into a roadbed layer by using a steel chisel on the virtual pavement by a detector, recording the insertion depth position of the steel chisel, and measuring the length of the steel chisel by using a steel ruler to obtain the virtual pavement thickness of a sampling point;

2) elevation sampling measurement of virtual pavement

And sampling and measuring the elevation value of the virtual pavement by using a total station or a level gauge, and obtaining the virtual pavement thickness of the sampling point by calculating the difference interval between the elevation value of the virtual pavement and the elevation value of the roadbed layer of the sampling point.

The weaknesses of the prior art are as follows:

1) the open-pore sampling measurement method has the advantages of manual detection, low precision, large sampling randomness and limited quantity.

2) The elevation measurement method for the virtual pavement has the advantages of high precision, low automation degree, requirement of professional technicians, high sampling randomness and relatively limited quantity.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a system and a method for detecting the virtual pavement thickness based on multi-beam ultrasonic detection, which have the advantages of automatic detection, high precision and dynamic continuous detection.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a virtual pavement thickness detection system based on multi-beam ultrasonic detection is used for paving machinery, and comprises:

the detection equipment is used for measuring the ground clearance of each current ultrasonic detector, acquiring height data information, transmitting the height data information obtained based on the current position to the control end, comprises at least four ultrasonic detectors and is respectively arranged at the front end position and the rear end position of the paving machine;

the connecting part is used for fixedly connecting the ultrasonic detector, comprises two connecting rods and is fixedly arranged at two ends of an ironing plate of the paving machine;

the positioning devices are used for positioning the positions of the connecting rods in real time, acquiring position data information and transmitting the position data information to the control end, and two groups of the positioning devices are arranged;

the control end receives the position data information of the current position and the height data information of each current ultrasonic detector, calculates based on the received position data information and the received height data information, and stores the obtained result data information;

the paving machine is paving equipment with a screed plate, the two ends of the screed plate are an A end and a B end and respectively correspond to the left end and the right end of an advancing route of the paving machine, and the connecting rod is arranged at the left end and the right end of the screed plate.

Preferably, the two groups of positioning devices are arranged in the middle of the connecting rod and are positioned at the same coordinate position with the screed of the paving machine.

Preferably, each ultrasonic detector is connected with two connecting rods, and the connecting position extends out of the ironing plate.

Preferably, the positioning device and the detection device are respectively connected with the control end by data transmission.

Preferably, the ultrasonic detectors are arranged at the front and back positions of the two ends of the ironing plate, and the collecting heads of the ultrasonic detectors are arranged downwards.

Another technical problem to be solved by the present invention is to provide a detection method, which includes the following steps:

1) acquiring the ground clearance data information of the acquisition heads of all the current ultrasonic detectors through detection equipment, and sending the height data information to a control end;

2) acquiring position data information of each connecting rod through a positioning device, and sending the position data information to a control end;

3) after receiving the position data information, the control end calculates the position data information of each ultrasonic detector and records and stores the position data information;

4) the control end detects a virtual paving thickness value of the current position based on the received height data information;

5) the control end matches and stores the judged virtual paving thickness value with the position data information;

6) repeating the operations from the step 1) to the step 5) while the paving machine advances until the detection of the planned road section is completed.

Preferably, in step 1), the detection device is provided with two ultrasonic detectors A1 and A2 at the A end and two ultrasonic detectors B1 and B2 at the B end respectively in front and back along the paving travelling direction.

Preferably, in step 2), the positioning device is a GPS positioning device having a PPS clock synchronization function.

Preferably, in step 4), the virtual paving thickness value is obtained by the following method:

when the ultrasonic detectors A1 and B1 pass through the section L, the distances between the probes and the roadbed are Ha1 and Hb1 respectively obtained by detection of the ultrasonic detectors, along with the advancing of the paving machine, the ultrasonic detectors A2 and B2 pass through the section L, the distances between the probes of the ultrasonic detectors and the virtual pavement are Ha2 and Hb2 respectively obtained by detection, the difference solution is calculated, HA-Ha 1-Ha2 and HB-Hb 1-Hb2 are obtained, and HA and HB are virtual pavement thickness values at two ends of the section L respectively.

Preferably, in step 5), the position data information, the height data information and the virtual thickness paving value are transmitted synchronously.

The technology utilizes the ultrasonic detector to dynamically and continuously measure the virtual paving thickness in the whole paving process, and solves the problem of making up the defects of the prior art that the sampling detection method is mainly adopted.

Description of the principle:

the paving machine is provided with a screed plate device, two ends of the screed plate are set to be AB two ends, two ultrasonic detectors A1 and A2 are respectively installed at the A end front and back along the paving advancing direction, and two ultrasonic detectors B1 and B2 are installed at the B end. When the ultrasonic detectors A1 and B1 pass through the section L, the ultrasonic detectors detect that the distances between the probes and the roadbed are Ha1 and Hb1 respectively, the ultrasonic detectors A2 and B2 pass through the section L along with the traveling of the paving machine, the distances between the probes of the ultrasonic detectors and the virtual pavement are Ha2 and Hb2 respectively, difference solution calculation is carried out to obtain HA-Ha 1-Ha2 and HB-Hb 1-Hb2, and HA and HB are virtual pavement thickness values at two ends of the section L respectively.

The invention has the beneficial effects that:

1) automated detection

After the system is installed and debugged, the virtual paving thickness is automatically detected by the system in the whole paving process without manual intervention;

2) high precision

The ultrasonic detector is generally installed at a ground clearance within the range of 40-50 cm, and the detection precision of the distance reaches millimeter level;

3) dynamic continuous detection

The system automatically detects in the whole paving process, and the detection frequency is in millisecond level. Therefore, the detection result of the virtual pavement thickness forms continuous virtual pavement, and the quality of the detection result is superior to that of the discrete point detection result obtained by sampling detection.

Drawings

FIG. 1 is a schematic diagram of the operation of a virtual pavement thickness detection system based on multi-beam ultrasonic detection according to the present invention;

fig. 2 is a flow chart of the method for detecting the virtual pavement thickness based on multi-beam ultrasonic detection according to the invention.

Detailed Description

The present invention is further described with reference to the following drawings and specific examples so that those skilled in the art can better understand the present invention and can practice the present invention, but the examples are not intended to limit the present invention.

Examples

Referring to fig. 1-2, a virtual pavement thickness detecting system based on multi-beam ultrasonic detection for a paving machine includes:

the detection equipment is used for measuring the ground clearance of each current ultrasonic detector, acquiring height data information, transmitting the height data information obtained based on the current position to the control end, comprises at least four ultrasonic detectors and is respectively arranged at the front end position and the rear end position of the paving machine;

the connecting part is used for fixedly connecting the ultrasonic detector, comprises two connecting rods and is fixedly arranged at two ends of an ironing plate of the paving machine;

the positioning devices are used for positioning the positions of the connecting rods in real time, acquiring position data information and transmitting the position data information to the control end, and two groups of the positioning devices are arranged;

the control end receives the position data information of the current position and the height data information of each current ultrasonic detector, calculates based on the received position data information and the received height data information, and stores the obtained result data information;

the paving machine is paving equipment with a screed plate, the two ends of the screed plate are an A end and a B end and respectively correspond to the left end and the right end of an advancing route of the paving machine, and the connecting rod is arranged at the left end and the right end of the screed plate.

Two sets of positioner all install in the middle part of connecting rod, and with the screed of the machinery that paves is in same coordinate position, each ultrasonic detector is connected with two connecting rods respectively, and the hookup location extends outside the screed, positioner and detection equipment adopt data transmission to be connected with the control end respectively, ultrasonic detector sets up position around the both ends of screed, and its collecting head sets up for down, and in this embodiment, the positioner who adopts mainly is used for real-time dynamic tracking to pave the position coordinate of machinery to with its virtual thickness value of paving calculated and match and save, thereby accomplish the detection of the overall process of paving.

A virtual pavement thickness detection method based on multi-beam ultrasonic detection comprises the following steps:

1) acquiring the ground clearance data information of the acquisition heads of all the current ultrasonic detectors through detection equipment, and sending the height data information to a control end;

2) acquiring position data information of each connecting rod through a positioning device, and sending the position data information to a control end;

3) after receiving the position data information, the control end calculates the position data information of each ultrasonic detector and records and stores the position data information;

4) the control end detects a virtual paving thickness value of the current position based on the received height data information;

5) the control end matches and stores the judged virtual paving thickness value with the position data information;

6) repeating the operations from the step 1) to the step 5) while the paving machine advances until the detection of the planned road section is completed.

In the step 1), the detection device is characterized in that two ultrasonic detectors A1 and A2 are respectively arranged at the end A in the front and back direction of the paving travelling direction, and two ultrasonic detectors B1 and B2 are arranged at the end B.

In step 2), the positioning device is a GPS positioning device with a PPS clock synchronization function.

In the step 4), the virtual paving thickness value is obtained by adopting the following method:

when the ultrasonic detectors A1 and B1 pass through the section L, the distances between the probes and the roadbed are Ha1 and Hb1 respectively obtained by detection of the ultrasonic detectors, along with the advancing of the paving machine, the ultrasonic detectors A2 and B2 pass through the section L, the distances between the probes of the ultrasonic detectors and the virtual pavement are Ha2 and Hb2 respectively obtained by detection, the difference solution is calculated, HA-Ha 1-Ha2 and HB-Hb 1-Hb2 are obtained, and HA and HB are virtual pavement thickness values at two ends of the section L respectively.

In step 5), the position data information, the height data information and the virtual paving thickness value are transmitted synchronously.

The technology utilizes the ultrasonic detector to dynamically and continuously measure the virtual paving thickness in the whole paving process, and solves the problem of making up the defects of the prior art that the sampling detection method is mainly adopted.

Description of the principle:

the paving machine is provided with a screed plate device, two ends of the screed plate are set to be AB two ends, two ultrasonic detectors A1 and A2 are respectively installed at the A end front and back along the paving advancing direction, and two ultrasonic detectors B1 and B2 are installed at the B end. When the ultrasonic detectors A1 and B1 pass through the section L, the ultrasonic detectors detect that the distances between the probes and the roadbed are Ha1 and Hb1 respectively, the ultrasonic detectors A2 and B2 pass through the section L along with the traveling of the paving machine, the distances between the probes of the ultrasonic detectors and the virtual pavement are Ha2 and Hb2 respectively, difference solution calculation is carried out to obtain HA-Ha 1-Ha2 and HB-Hb 1-Hb2, and HA and HB are virtual pavement thickness values at two ends of the section L respectively.

The invention has the beneficial effects that:

1) automated detection

After the system is installed and debugged, the virtual paving thickness is automatically detected by the system in the whole paving process without manual intervention;

2) high precision

The ultrasonic detector is generally installed at a ground clearance within the range of 40-50 cm, and the detection precision of the distance reaches millimeter level;

3) dynamic continuous detection

The system automatically detects in the whole paving process, and the detection frequency is in millisecond level. Therefore, the detection result of the virtual pavement thickness forms continuous virtual pavement, and the quality of the detection result is superior to that of the discrete point detection result obtained by sampling detection.

The above-described embodiments of the present invention are not intended to limit the scope of the present invention, and the embodiments of the present invention are not limited thereto, and various other modifications, substitutions and alterations can be made to the above-described structure of the present invention without departing from the basic technical concept of the present invention as described above, according to the common technical knowledge and conventional means in the field of the present invention.