CN113532362B - Intelligent automatic mapping analysis system for road safety adaptability - Google Patents
Intelligent automatic mapping analysis system for road safety adaptability Download PDFInfo
- Publication number
- CN113532362B CN113532362B CN202110802999.1A CN202110802999A CN113532362B CN 113532362 B CN113532362 B CN 113532362B CN 202110802999 A CN202110802999 A CN 202110802999A CN 113532362 B CN113532362 B CN 113532362B
- Authority
- CN
- China
- Prior art keywords
- sensor
- computer
- data
- rotary encoder
- information
- 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.)
- Active
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/18—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring depth
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/01—Devices or auxiliary means for setting-out or checking the configuration of new surfacing, e.g. templates, screed or reference line supports; Applications of apparatus for measuring, indicating, or recording the surface configuration of existing surfacing, e.g. profilographs
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/30—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring roughness or irregularity of surfaces
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Repair (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention relates to an intelligent automatic mapping analysis system for road safety adaptability, which comprises: the system comprises a power supply system, a rotary encoder, a data acquisition system, a sensor and a computer; the power supply system is connected with the rotary encoder and the sensor; the rotary encoder and the sensor are connected with the data acquisition system; the data acquisition system is connected with the computer; a power supply system for supplying power to the rotary encoder and the sensor; the rotary encoder is used for acquiring and collecting longitudinal displacement data and transmitting the longitudinal displacement data to the data acquisition system; the data acquisition system is used for sending acquisition signals to the sensor according to the longitudinal displacement data; the sensor is used for collecting information according to the collected signals and transmitting the collected information to the data collection system; the data acquisition system is used for transmitting the longitudinal displacement data and the information to the computer; and the computer is used for mapping and analyzing according to the longitudinal displacement data and the information. The system can perform high-efficiency and accurate road automatic mapping analysis.
Description
Technical Field
The invention relates to the technical field of mapping, in particular to an intelligent automatic mapping analysis system for road safety adaptability.
Background
With the rapid development of national highways, the test technology in the road surface detection field related to the rapid development is also required. The traditional manual surveying and mapping method is relatively long in manual operation time, cannot adapt to the trend of rapid data acquisition and updating, and cannot avoid manual subjective errors and high-intensity labor and dangers brought by operation on roads. Meanwhile, the traditional method can cause repeated input of information, so that the efficiency is low, and errors are easy to generate.
Therefore, it is a significant task to design a depth of construction and flatness detection system that is efficient, results accurate, and easy to operate.
Disclosure of Invention
First, the technical problem to be solved
In view of the above-mentioned shortcomings and disadvantages of the prior art, the present invention provides a road safety adaptive intelligent automatic mapping analysis system.
(II) technical scheme
In order to achieve the above purpose, the main technical scheme adopted by the invention comprises the following steps:
the embodiment of the invention provides an intelligent automatic mapping analysis system for road safety adaptability, which comprises the following components: the system comprises a power supply system, a rotary encoder, a data acquisition system, a sensor and a computer;
the power supply system is connected with the rotary encoder and the sensor;
the rotary encoder and the sensor are connected with the data acquisition system;
the data acquisition system is connected with the computer;
the power supply system is used for supplying power to the rotary encoder and the sensor;
the rotary encoder is used for acquiring and collecting longitudinal displacement data and transmitting the longitudinal displacement data to the data acquisition system;
the data acquisition system is used for sending acquisition signals to the sensor according to the longitudinal displacement data;
the sensor is used for collecting information according to the collecting signals and transmitting the collected information to the data collecting system;
the data acquisition system is used for transmitting the longitudinal displacement data and the information to the computer;
the computer is used for carrying out mapping analysis according to the longitudinal displacement data and the information.
Optionally, the sensor includes a laser displacement sensor and an acceleration sensor;
the laser displacement sensor is used for collecting elevation information according to the collecting signals and transmitting the collected elevation information to the data collecting system;
the acceleration sensor is used for collecting the instantaneous acceleration according to the collecting signal and transmitting the collected instantaneous acceleration to the data collecting system.
Optionally, the data acquisition system comprises an acquisition card;
the acquisition card is connected with the sensor;
the acquisition card is used for sending acquisition signals to the sensor.
Optionally, the data acquisition system is integrated within the computer;
the power supply system and the computer are positioned in the vehicle;
the rotary encoder is positioned on an axle of the vehicle;
the laser displacement sensor is positioned on the top inclined plane of the vehicle, or is positioned at the bottom of the vehicle and is parallel to the road surface;
the acceleration sensor is located on a suspension of the vehicle.
Optionally, the rotary encoder is an incremental rotary encoder.
Optionally, the acceleration sensor is a piezoelectric acceleration sensor.
Optionally, the computer is used for analyzing pavement information according to the longitudinal displacement data and the elevation information; and adjusting the pavement information according to the instantaneous acceleration to obtain the pavement structure depth and the flatness.
Alternatively, for any time t, the computer is configured to obtain the road surface information I according to the following formula t ：
Wherein H is t For the elevation information at time t, d t For longitudinal displacement data at time t, d t-1 Is the longitudinal displacement data of the moment before t, d t-2 Is the longitudinal displacement data of the two times before t, H t-1 For elevation information at the time immediately before t, H t-2 The elevation information of the first two times t.
Alternatively, for any time t, the computer will send the road surface information I t Is adjusted to
Wherein a is t For instantaneous acceleration at time t, a t-1 Is the instantaneous acceleration immediately before t.
Alternatively, the computer obtains the road construction depth DE by the following formula: wherein L is t Alpha is the weight of the pavement material for the distance from the beginning of collection to the moment t;
the computer obtains the road surface flatness PL by the following formula:
(III) beneficial effects
The beneficial effects of the invention are as follows: the invention relates to an intelligent automatic road safety adaptability mapping analysis system, which comprises: the system comprises a power supply system, a rotary encoder, a data acquisition system, a sensor and a computer; the power supply system is connected with the rotary encoder and the sensor; the rotary encoder and the sensor are connected with the data acquisition system; the data acquisition system is connected with the computer; a power supply system for supplying power to the rotary encoder and the sensor; the rotary encoder is used for acquiring and collecting longitudinal displacement data and transmitting the longitudinal displacement data to the data acquisition system; the data acquisition system is used for sending acquisition signals to the sensor according to the longitudinal displacement data; the sensor is used for collecting information according to the collected signals and transmitting the collected information to the data collection system; the data acquisition system is used for transmitting the longitudinal displacement data and the information to the computer; and the computer is used for mapping and analyzing according to the longitudinal displacement data and the information. The system can perform high-efficiency and accurate road automatic mapping analysis.
Drawings
Fig. 1 is a schematic structural diagram of a first road safety adaptive intelligent automatic mapping analysis system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a second road safety adaptive intelligent automatic mapping analysis system according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a sensor, an acquisition card and a computer according to an embodiment of the present invention.
Detailed Description
The invention will be better explained by the following detailed description of the embodiments with reference to the drawings.
With the rapid development of national highways, the test technology in the road surface detection field related to the rapid development is also required. The traditional manual surveying and mapping method is relatively long in manual operation time, cannot adapt to the trend of rapid data acquisition and updating, and cannot avoid manual subjective errors and high-intensity labor and dangers brought by operation on roads. Meanwhile, the traditional method can cause repeated input of information, so that the efficiency is low, and errors are easy to generate. Therefore, it is a significant task to design a depth of construction and flatness detection system that is efficient, results accurate, and easy to operate.
In view of this, the present invention provides a road safety adaptive intelligent automatic mapping analysis system, comprising: the system comprises a power supply system, a rotary encoder, a data acquisition system, a sensor and a computer; the power supply system is connected with the rotary encoder and the sensor; the rotary encoder and the sensor are connected with the data acquisition system; the data acquisition system is connected with the computer; a power supply system for supplying power to the rotary encoder and the sensor; the rotary encoder is used for acquiring and collecting longitudinal displacement data and transmitting the longitudinal displacement data to the data acquisition system; the data acquisition system is used for sending acquisition signals to the sensor according to the longitudinal displacement data; the sensor is used for collecting information according to the collected signals and transmitting the collected information to the data collection system; the data acquisition system is used for transmitting the longitudinal displacement data and the information to the computer; and the computer is used for mapping and analyzing according to the longitudinal displacement data and the information. The system can perform high-efficiency and accurate road automatic mapping analysis.
Referring to fig. 1, the road safety adaptive intelligent automatic mapping analysis system provided by the invention comprises: the system comprises a power supply system, a rotary encoder, a data acquisition system, a sensor and a computer.
Wherein, electrical power system is connected with rotary encoder and sensor.
The rotary encoder and the sensor are connected with a data acquisition system.
The data acquisition system is connected with a computer.
1. Power supply system
And a power supply system for supplying power to the rotary encoder and the sensor.
2. Rotary encoder
And the rotary encoder is used for acquiring and collecting longitudinal displacement data and transmitting the longitudinal displacement data to the data acquisition system.
In particular, the rotary encoder may be an incremental rotary encoder. The incremental rotary encoder is selected because of small volume, simple mechanism, high precision, stable response performance and wide application.
3. Sensor for detecting a position of a body
And the sensor is used for collecting information according to the collected signals and transmitting the collected information to the data collection system.
In addition, the sensor includes a laser displacement sensor and an acceleration sensor.
And the laser displacement sensor is used for collecting elevation information according to the collected signals and transmitting the collected elevation information to the data collection system.
When the method is actually applied, the laser displacement sensor adopts a direct-injection type triangular ranging method, and the direct-injection type triangular ranging method is small in structural size, convenient to install, small in light spot, concentrated in light intensity, large in working distance, simple in algorithm, convenient to debug, capable of detecting the displacement condition of specific points and more suitable for rough road surfaces.
And the acceleration sensor is used for acquiring the instantaneous acceleration according to the acquisition signal and transmitting the acquired instantaneous acceleration to the data acquisition system.
In particular, the acceleration sensor may be a piezoelectric acceleration sensor. Because the performances of the sensitivity, the linear characteristic, the measuring range, the impact resistance and the like of the piezoelectric acceleration sensor are suitable for the requirements of the road safety adaptability intelligent automatic mapping analysis system.
In addition, in the specific implementation, the corresponding road safety adaptive intelligent automatic mapping analysis system is shown in fig. 2.
4. Data acquisition system
And the data acquisition system is used for sending acquisition signals to the sensor according to the longitudinal displacement data.
And the data acquisition system is used for transmitting the longitudinal displacement data and the information to the computer.
In addition, the data acquisition system includes an acquisition card.
The acquisition card is connected with the sensor.
And the acquisition card is used for sending an acquisition signal to the sensor.
If the sensors are a laser displacement sensor and an acceleration sensor, the connection relationship among the corresponding sensors, the acquisition card and the computer is shown in fig. 3.
The data acquisition system is integrated within the computer.
If the data acquisition system comprises an acquisition card, the acquisition card is also integrated in the computer.
The power supply system and the computer are located in the vehicle.
The rotary encoder is located on the axle of the vehicle.
The laser displacement sensor is positioned on the top inclined plane of the vehicle, or is positioned at the bottom of the vehicle and is parallel to the road surface.
The acceleration sensor is located on the suspension of the vehicle.
In practical application, the data acquisition system not only acquires acceleration signals and laser displacement signals, but also performs simple processing and the like after acquisition. The processing of the signals mainly comprises the filtering of the acceleration signal and the laser displacement signal. And preprocessing the acceleration signal, including twice integration, removing trend term, removing direct current term, and the like. And then the actual elevation information of the road surface is obtained by the difference between the laser displacement signal quantity and the vehicle body vibration displacement quantity obtained by the acceleration signal.
The data acquisition system can control the rotary encoder, the acceleration sensor and the laser displacement sensor to sample according to the set sampling frequency through the acquisition card. Because the signals collected by the acceleration sensor and the laser displacement sensor are weaker and are easily interfered by the external environment and the like, one end of the signal from the laser sensor is connected to the analog signal input end, and the other end of the signal is commonly connected to the acquisition card by adopting an NRSE wiring method.
5. Computer with a memory for storing data
And the computer is used for mapping and analyzing according to the longitudinal displacement data and the information.
And the computer is used for analyzing the pavement information according to the longitudinal displacement data and the elevation information. And adjusting the pavement information according to the instantaneous acceleration to obtain the pavement structure depth and the flatness.
For any time t, the computer is arranged to respond to, for exampleThe following formula obtains the pavement information I t ：
Wherein H is t For the elevation information at time t, d t For longitudinal displacement data at time t, d t-1 Is the longitudinal displacement data of the moment before t, d t-2 Is the longitudinal displacement data of the two times before t, H t-1 For elevation information at the time immediately before t, H t-2 The elevation information of the first two times t.
After the road surface information is obtained, the road surface information can be adjusted so as to eliminate road surface information errors caused by instantaneous acceleration and improve the accuracy of the road surface information. The specific adjustment scheme is as follows: for any time t, the computer will send the road surface information I t Is adjusted to
Wherein a is t For instantaneous acceleration at time t, a t-1 Is the instantaneous acceleration immediately before t.
In addition, the computer obtains the road surface construction depth DE by the following formula:wherein L is t For the distance from the start of acquisition to time t, α is the road surface material weight.
The computer obtains the road surface flatness PL by the following formula:
the road safety adaptability intelligent automatic mapping analysis system provided by the embodiment is composed of a power supply system, a rotary encoder, a data acquisition system, a sensor and a computer, wherein the data acquisition system is provided with various acquisition cards, and the sensor comprises a laser displacement sensor and an acceleration sensor.
The rotary encoder measures the longitudinal displacement and provides acquisition signals for the data acquisition system; the data acquisition system sends acquisition signals to the laser displacement sensor and the acceleration sensor according to the pulses provided by the encoder; the laser displacement sensor and the acceleration sensor collect and detect the road surface elevation information and the instantaneous acceleration according to signals. The various signals collected by the rotary encoder, the laser displacement sensor and the acceleration sensor are sent to a computer for processing after passing through a data collection system, and finally converted into the pavement construction depth and the pavement flatness.
The intelligent automatic road safety adaptive mapping analysis system provided by the embodiment can be assembled on a vehicle, a rotary encoder is arranged on a wheel shaft, and the rotary encoder is provided with an antenna to transmit signals to a data acquisition system; the data acquisition system (including the acquisition card inside thereof) is integrated on the computer; the acceleration sensor is arranged on a suspension of the vehicle, the laser displacement sensor is arranged on a slope position of a roof or a position parallel to a road surface at the bottom of the vehicle, and the laser displacement sensor is connected to the acquisition card.
The road safety adaptability intelligent automatic mapping analysis system provided by the embodiment comprises: the system comprises a power supply system, a rotary encoder, a data acquisition system, a sensor and a computer; the power supply system is connected with the rotary encoder and the sensor; the rotary encoder and the sensor are connected with the data acquisition system; the data acquisition system is connected with the computer; a power supply system for supplying power to the rotary encoder and the sensor; the rotary encoder is used for acquiring and collecting longitudinal displacement data and transmitting the longitudinal displacement data to the data acquisition system; the data acquisition system is used for sending acquisition signals to the sensor according to the longitudinal displacement data; the sensor is used for collecting information according to the collected signals and transmitting the collected information to the data collection system; the data acquisition system is used for transmitting the longitudinal displacement data and the information to the computer; and the computer is used for mapping and analyzing according to the longitudinal displacement data and the information. The system can perform high-efficiency and accurate road automatic mapping analysis. In addition, the road surrounding situation can be mapped, and whether the surrounding road influences the driving safety or not is analyzed.
In order that the above-described aspects may be better understood, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Claims (7)
1. An intelligent automatic mapping analysis system for road safety adaptability, characterized in that the system comprises: the system comprises a power supply system, a rotary encoder, a data acquisition system, a sensor and a computer;
the power supply system is connected with the rotary encoder and the sensor;
the rotary encoder and the sensor are connected with the data acquisition system;
the data acquisition system is connected with the computer;
the power supply system is used for supplying power to the rotary encoder and the sensor;
the rotary encoder is used for acquiring and collecting longitudinal displacement data and transmitting the longitudinal displacement data to the data acquisition system;
the data acquisition system is used for sending acquisition signals to the sensor according to the longitudinal displacement data;
the sensor is used for collecting information according to the collecting signals and transmitting the collected information to the data collecting system;
the data acquisition system is used for transmitting the longitudinal displacement data and the information to the computer;
the computer is used for carrying out mapping analysis according to the longitudinal displacement data and the information;
the sensor comprises a laser displacement sensor and an acceleration sensor;
the laser displacement sensor is used for collecting elevation information according to the collecting signals and transmitting the collected elevation information to the data collecting system;
the acceleration sensor is used for acquiring instantaneous acceleration according to the acquisition signal and transmitting the acquired instantaneous acceleration to the data acquisition system;
the computer is used for analyzing pavement information according to the longitudinal displacement data and the elevation information; adjusting the pavement information according to the instantaneous acceleration to obtain pavement construction depth and flatness;
for any time t, the computer is used for obtaining the pavement information I according to the following formula t ：
Wherein H is t For the elevation information at time t, d t For longitudinal displacement data at time t, d t-1 Is the longitudinal displacement data of the moment before t, d t-2 Is the longitudinal displacement data of the two times before t, H t-1 For elevation information at the time immediately before t, H t-2 The elevation information of the first two times t.
2. The system of claim 1, wherein the data acquisition system comprises an acquisition card;
the acquisition card is connected with the sensor;
the acquisition card is used for sending acquisition signals to the sensor.
3. The system of claim 2, wherein the data acquisition system is integrated within the computer;
the power supply system and the computer are positioned in the vehicle;
the rotary encoder is positioned on an axle of the vehicle;
the laser displacement sensor is positioned on the top inclined plane of the vehicle, or is positioned at the bottom of the vehicle and is parallel to the road surface;
the acceleration sensor is located on a suspension of the vehicle.
4. The system of claim 3, wherein the rotary encoder is an incremental rotary encoder.
5. A system according to claim 3, wherein the acceleration sensor is a piezoelectric acceleration sensor.
6. The system according to claim 1, wherein for any instant t the computer will send the road information I t Is adjusted to
Wherein a is t For instantaneous acceleration at time t, a t-1 Is the instantaneous acceleration immediately before t.
7. The system of claim 1, wherein the computer derives the pavement construction depth DE by the formula:wherein L is t Alpha is the weight of the pavement material for the distance from the beginning of collection to the moment t;
the computer obtains the road surface flatness PL by the following formula:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110802999.1A CN113532362B (en) | 2021-07-15 | 2021-07-15 | Intelligent automatic mapping analysis system for road safety adaptability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110802999.1A CN113532362B (en) | 2021-07-15 | 2021-07-15 | Intelligent automatic mapping analysis system for road safety adaptability |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113532362A CN113532362A (en) | 2021-10-22 |
| CN113532362B true CN113532362B (en) | 2023-09-01 |
Family
ID=78099599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110802999.1A Active CN113532362B (en) | 2021-07-15 | 2021-07-15 | Intelligent automatic mapping analysis system for road safety adaptability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113532362B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116448016A (en) * | 2023-04-26 | 2023-07-18 | 成都智达万应科技有限公司 | Intelligent rapid detection system and detection vehicle with same |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806593A (en) * | 2010-03-12 | 2010-08-18 | 长安大学 | Road geometry measuring method based on accelerometers |
| CN103290768A (en) * | 2013-06-26 | 2013-09-11 | 广东惠利普路桥信息工程有限公司 | Flatness Measuring Instrument and Measuring Method |
| CN103835212A (en) * | 2014-02-21 | 2014-06-04 | 哈尔滨工业大学 | Three-dimensional road surface detecting system |
| CN105066959A (en) * | 2015-07-24 | 2015-11-18 | 江苏苏科畅联科技有限公司 | Pavement vertical section elevation information acquisition method |
| JP2019191093A (en) * | 2018-04-27 | 2019-10-31 | 古野電気株式会社 | Displacement analyzer, GNSS positioning analyzer, and displacement analysis method |
| CN210621418U (en) * | 2019-07-13 | 2020-05-26 | 嘉兴普勒斯交通技术有限公司 | Pavement structure depth detection system |
| CN111581592A (en) * | 2019-08-02 | 2020-08-25 | 云途信息科技(杭州)有限公司 | Road quality detection method, device, storage medium and system |
| CN112523044A (en) * | 2020-10-22 | 2021-03-19 | 中公高科养护科技股份有限公司 | Method and device for measuring road surface bumping degree based on unidirectional displacement sensing |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100292926A1 (en) * | 2009-05-13 | 2010-11-18 | National Kaohsiung University Of Applied Sciences | Road topographic surveying system |
-
2021
- 2021-07-15 CN CN202110802999.1A patent/CN113532362B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806593A (en) * | 2010-03-12 | 2010-08-18 | 长安大学 | Road geometry measuring method based on accelerometers |
| CN103290768A (en) * | 2013-06-26 | 2013-09-11 | 广东惠利普路桥信息工程有限公司 | Flatness Measuring Instrument and Measuring Method |
| CN103835212A (en) * | 2014-02-21 | 2014-06-04 | 哈尔滨工业大学 | Three-dimensional road surface detecting system |
| CN105066959A (en) * | 2015-07-24 | 2015-11-18 | 江苏苏科畅联科技有限公司 | Pavement vertical section elevation information acquisition method |
| JP2019191093A (en) * | 2018-04-27 | 2019-10-31 | 古野電気株式会社 | Displacement analyzer, GNSS positioning analyzer, and displacement analysis method |
| CN210621418U (en) * | 2019-07-13 | 2020-05-26 | 嘉兴普勒斯交通技术有限公司 | Pavement structure depth detection system |
| CN111581592A (en) * | 2019-08-02 | 2020-08-25 | 云途信息科技(杭州)有限公司 | Road quality detection method, device, storage medium and system |
| CN112523044A (en) * | 2020-10-22 | 2021-03-19 | 中公高科养护科技股份有限公司 | Method and device for measuring road surface bumping degree based on unidirectional displacement sensing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113532362A (en) | 2021-10-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201698588U (en) | Vehicle detection system based on double earth inductors | |
| CN113532362B (en) | Intelligent automatic mapping analysis system for road safety adaptability | |
| CN110806193A (en) | Subway tunnel deformation detection system | |
| GB2432005A (en) | System and Method for Measurement of Small-Angle or Small-Displacement | |
| CN103927884A (en) | Vehicle detection device based on acceleration sensor and light sensor | |
| CN201292838Y (en) | Pipe column state detection device | |
| CN108534651A (en) | A kind of straightness error detection device of multiple spot triggering | |
| CN115015396A (en) | Tunnel vault detection device and method based on impact echo acoustic frequency method | |
| CN101470080A (en) | Surface shape image detection system based on structured light projection | |
| CN112677887B (en) | Vehicle body posture testing equipment and testing method | |
| CN106290986A (en) | A kind of dynamic signal detection device and method of wheel speed sensors | |
| CN201251511Y (en) | Tracking instrument for automobile road driving condition | |
| CN219527273U (en) | Intelligent compaction detection system for asphalt pavement | |
| CN1020774C (en) | High-speed highway level | |
| CN208668185U (en) | A kind of high-precision railway spike position detecting device | |
| CN207571319U (en) | The highly reliable seismic detector being made of four measuring units | |
| CN1707283A (en) | Underground intelligent vehicle detector | |
| CN209443451U (en) | A kind of road base layer compactness sampler | |
| CN215003599U (en) | Automatic road surveying and mapping analysis device | |
| Tang et al. | Research on the method for analyzing the degree of impact acceleration and compaction of the impact roller | |
| CN202454091U (en) | Parking space detection device | |
| CN207964049U (en) | A kind of concealed fetalism identifying system | |
| CN214201242U (en) | Pavement base crack detection and recognition device | |
| CN208704763U (en) | A kind of magnetic field induction positioning device | |
| CN101545240B (en) | Photoelectric deflection fast detector |
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 |