CN113532362A - Intelligent automatic mapping and analyzing system for road safety adaptability - Google Patents
Intelligent automatic mapping and analyzing system for road safety adaptability Download PDFInfo
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- CN113532362A CN113532362A CN202110802999.1A CN202110802999A CN113532362A CN 113532362 A CN113532362 A CN 113532362A CN 202110802999 A CN202110802999 A CN 202110802999A CN 113532362 A CN113532362 A CN 113532362A
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- 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
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- 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
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- 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
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- 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 device 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 a 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 acquiring 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 acquiring information according to the acquisition signal and transmitting the acquired information to the data acquisition 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 carrying out mapping analysis according to the longitudinal displacement data and the information. The system can carry out efficient and accurate automatic mapping and analyzing of the road.
Description
Technical Field
The invention relates to the technical field of surveying and mapping, in particular to an intelligent automatic surveying and mapping analysis system for road safety adaptability.
Background
With the rapid development of national highways, the test technology in the field of road surface detection related to the national highways also needs to be rapidly developed. The traditional method adopts manual surveying and mapping, the time consumption of manual operation is large, the method cannot adapt to the trend of rapid data acquisition and updating, and cannot avoid manual subjective errors and high-intensity labor and dangerousness 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, designing a structural depth and flatness detection system with high efficiency, accurate result and simple operation is a significant task.
Disclosure of Invention
Technical problem to be solved
In view of the above disadvantages and shortcomings of the prior art, the present invention provides an intelligent automatic mapping and analyzing system for road safety adaptability.
(II) technical scheme
In order to achieve the purpose, the invention adopts the main technical scheme that:
the embodiment of the invention provides an intelligent automatic mapping and analyzing system for road safety adaptability, which comprises: the device 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 acquiring 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 acquiring information according to the acquisition signal and transmitting the acquired information to the data acquisition system;
the data acquisition system is used for transmitting the longitudinal displacement data and the information to the computer;
the computer is used for mapping and analyzing according to the longitudinal displacement data and the information.
Optionally, the sensor comprises a laser displacement sensor and an acceleration sensor;
the laser displacement sensor is used for acquiring elevation information according to the acquisition signals and transmitting the acquired elevation information to the data acquisition system;
and 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.
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 located in a vehicle;
the rotary encoder is positioned on a wheel shaft 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 configured to analyze the road surface information according to the longitudinal displacement data and the elevation information; and adjusting the road surface information according to the instantaneous acceleration to obtain the road surface structure depth and the road surface flatness.
Optionally, for any time t, the computer is used for obtaining the road surface information I according to the following formulat：
Wherein HtAs elevation information at time t, dtLongitudinal displacement data for time t, dt-1Longitudinal displacement data of the moment t precedes, dt-2Is the longitudinal displacement data of the first two times t, Ht-1Is elevation information at a time t before, Ht-2The elevation information of the first two times t.
Optionally, for any time t, the computer compares the road surface information ItIs adjusted to
Wherein, atIs the instantaneous acceleration at time t, at-1Is the instantaneous acceleration at the moment immediately before t.
Alternatively, the computer obtains the road surface formation depth DE by the following formula:
wherein L istAlpha is the road surface material weight, and is the distance from the start of collection to the time t;
the computer obtains the pavement evenness PL through the following formula:
(III) advantageous effects
The invention has the beneficial effects that: the invention discloses an intelligent automatic mapping analysis system for road safety adaptability, which comprises: the device 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 a 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 acquiring 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 acquiring information according to the acquisition signal and transmitting the acquired information to the data acquisition 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 carrying out mapping analysis according to the longitudinal displacement data and the information. The system can carry out efficient and accurate automatic mapping and analyzing of the road.
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 structural 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
For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings.
With the rapid development of national highways, the test technology in the field of road surface detection related to the national highways also needs to be rapidly developed. The traditional method adopts manual surveying and mapping, the time consumption of manual operation is large, the method cannot adapt to the trend of rapid data acquisition and updating, and cannot avoid manual subjective errors and high-intensity labor and dangerousness 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, designing a structural depth and flatness detection system with high efficiency, accurate result and simple operation is a significant task.
In view of this, the present invention provides an intelligent automatic mapping and analyzing system for road safety adaptability, comprising: the device 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 a 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 acquiring 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 acquiring information according to the acquisition signal and transmitting the acquired information to the data acquisition 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 carrying out mapping analysis according to the longitudinal displacement data and the information. The system can carry out efficient and accurate automatic mapping and analyzing of the road.
Referring to fig. 1, the intelligent automatic mapping and analyzing system for road safety adaptability provided by the invention comprises: power supply system, rotary encoder, data acquisition system, sensor, computer.
Wherein, the power supply system is connected with the rotary encoder and the sensor.
The rotary encoder and the sensor are connected with a data acquisition system.
The data acquisition system is connected with the computer.
1. Power supply system
And the power supply system is used for supplying power to the rotary encoder and the sensor.
2. Rotary encoder
And the rotary encoder is used for acquiring and acquiring longitudinal displacement data and transmitting the longitudinal displacement data to the data acquisition system.
In particular implementations, the rotary encoder may be an incremental rotary encoder. The incremental rotary encoder is selected, and has the advantages of small volume, simple mechanism, high precision, stable response performance and wide application.
3. Sensor with a sensor element
And the sensor is used for acquiring information according to the acquisition signal and transmitting the acquired information to the data acquisition system.
In addition, the sensor includes a laser displacement sensor and an acceleration sensor.
And the laser displacement sensor is used for acquiring elevation information according to the acquisition signals and transmitting the acquired elevation information to the data acquisition system.
In practical application, the laser displacement sensor adopts a direct-injection type triangular distance measurement method, and the direct-injection type triangular distance measurement method is small in structure 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 out the displacement condition of a specific point 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. The sensitivity, linear characteristic, measuring range, impact resistance and other performances of the piezoelectric acceleration sensor are suitable for the requirements of the road safety adaptive intelligent automatic mapping analysis system.
In addition, when the system is implemented specifically, a corresponding intelligent automatic mapping analysis system for road safety adaptability 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 comprises an acquisition card.
The acquisition card is connected with the sensor.
And the acquisition card is used for sending acquisition signals 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 in the computer.
If the data acquisition system comprises an acquisition card, the acquisition card is also integrated in the computer.
The power 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 positioned at the bottom of the vehicle and 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 the acceleration signal and the laser displacement signal, but also performs simple processing and the like after the acquisition. The signal processing process mainly comprises the filtering of the acceleration signal and the laser displacement signal. And preprocessing the acceleration signal, including quadratic integration, removing a trend term, removing a direct current term and the like. And obtaining actual road elevation information by making a 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 weak and are easily interfered by 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 connected to the acquisition card together by adopting an NRSE (non return to zero) wiring method.
5. Computer with a memory card
And the computer is used for carrying out mapping analysis according to the longitudinal displacement data and the information.
And the computer is used for analyzing the road surface information according to the longitudinal displacement data and the elevation information. And adjusting the road surface information according to the instantaneous acceleration to obtain the road surface structure depth and the road surface flatness.
For any time t, the computer is used for obtaining the road surface information I according to the following formulat：
Wherein HtAs elevation information at time t, dtLongitudinal displacement data for time t, dt-1Longitudinal displacement data of the moment t precedes, dt-2Is the longitudinal displacement data of the first two times t, Ht-1Is elevation information at a time t before, Ht-2The elevation information of the first two times t.
After the road surface information is obtained, the road surface information can be adjusted, so that road surface information errors caused by instantaneous acceleration can be eliminated, and the accuracy of the road surface information is improved. The specific adjustment scheme is as follows: for any time t, the computer converts the road surface information ItIs adjusted to
Wherein, atIs the instantaneous acceleration at time t, at-1Is the instantaneous acceleration at the moment immediately before t.
In addition, the computer obtains the road surface structure depth DE by the following formula:
wherein L istAlpha is the road surface material weight, which is the distance from the start of the acquisition to the time t.
The computer obtains the pavement evenness PL through 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 carries various acquisition cards, and the sensor comprises a laser displacement sensor and an acceleration sensor.
The rotary encoder measures longitudinal displacement and provides an acquisition signal 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; and the laser displacement sensor and the acceleration sensor detect the elevation information and the instantaneous acceleration of the road surface according to signal acquisition. 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 are converted into the pavement structure depth and the pavement flatness.
The intelligent automatic mapping and analyzing system for road safety adaptability 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 an acquisition card inside) is integrated on the computer; the acceleration sensor is arranged on a suspension of the vehicle, and the laser displacement sensor is arranged on an inclined plane of the top of the vehicle or on the parallel position of the bottom of the vehicle and the road surface and is connected to the acquisition card.
The road safety adaptability intelligence automatic mapping analysis system that provides through this embodiment includes: the device 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 a 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 acquiring 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 acquiring information according to the acquisition signal and transmitting the acquired information to the data acquisition 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 carrying out mapping analysis according to the longitudinal displacement data and the information. The system can carry out efficient and accurate automatic mapping and analyzing of the road. In addition, the condition around the road can be mapped, and whether the driving safety is influenced by the surrounding road or not can be analyzed.
In order to better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can 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 (10)
1. An intelligent automatic mapping analysis system for road safety adaptability, which is characterized in that the system comprises: the device 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 acquiring 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 acquiring information according to the acquisition signal and transmitting the acquired information to the data acquisition system;
the data acquisition system is used for transmitting the longitudinal displacement data and the information to the computer;
the computer is used for mapping and analyzing according to the longitudinal displacement data and the information.
2. The system of claim 1, wherein the sensors comprise a laser displacement sensor and an acceleration sensor;
the laser displacement sensor is used for acquiring elevation information according to the acquisition signals and transmitting the acquired elevation information to the data acquisition system;
and 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.
3. The system of claim 2, 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.
4. The system of claim 3, wherein the data acquisition system is integrated within the computer;
the power supply system and the computer are located in a vehicle;
the rotary encoder is positioned on a wheel shaft 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.
5. The system of claim 4, wherein the rotary encoder is an incremental rotary encoder.
6. The system of claim 4, wherein the acceleration sensor is a piezoelectric acceleration sensor.
7. The system of claim 2, wherein the computer is configured to analyze the road surface information based on the longitudinal displacement data and the elevation information; and adjusting the road surface information according to the instantaneous acceleration to obtain the road surface structure depth and the road surface flatness.
8. System according to claim 7, characterized in that for any time t the computer is arranged to derive the road surface information I according to the formulat：
Wherein HtAs elevation information at time t, dtLongitudinal displacement data for time t, dt-1Longitudinal displacement data of the moment t precedes, dt-2Is the longitudinal displacement data of the first two times t, Ht-1Is elevation information at a time t before, Ht-2The elevation information of the first two times t.
9. System according to claim 7, characterized in that for any time t the computer maps the road surface information ItIs adjusted to
Wherein, atIs the instantaneous acceleration at time t, at-1Is the instantaneous acceleration at the moment immediately before t.
10. According to the claimsThe system of claim 7, wherein the computer obtains the road surface formation depth DE by the following equation:
wherein L istAlpha is the road surface material weight, and is the distance from the start of collection to the time t;
the computer obtains the pavement evenness PL through the following formula:
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