CN113223296A - Warning system used during highway maintenance construction - Google Patents
Warning system used during highway maintenance construction Download PDFInfo
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- CN113223296A CN113223296A CN202110631353.1A CN202110631353A CN113223296A CN 113223296 A CN113223296 A CN 113223296A CN 202110631353 A CN202110631353 A CN 202110631353A CN 113223296 A CN113223296 A CN 113223296A
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0125—Traffic data processing
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/20—Image preprocessing
- G06V10/30—Noise filtering
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/40—Extraction of image or video features
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- G06—COMPUTING; CALCULATING OR COUNTING
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/065—Traffic control systems for road vehicles by counting the vehicles in a section of the road or in a parking area, i.e. comparing incoming count with outgoing count
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/07—Controlling traffic signals
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/07—Controlling traffic signals
- G08G1/08—Controlling traffic signals according to detected number or speed of vehicles
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
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Abstract
The invention provides a warning system for highway maintenance construction, which comprises: the data acquisition module is used for acquiring data of a current construction road section and vehicle information of the current road section; the data processing module is used for analyzing and processing the current construction road section data and the current road section vehicle information and determining the current construction progress and the current traffic flow; the data display module is used for displaying the current construction progress and the current traffic flow on a display screen preset on the construction road section; and the alarm module is used for carrying out early warning and reminding on vehicles in the current road section when judging that the current construction road section causes traffic congestion in the current road section based on the display result. The problem of when carrying out the highway section construction, to passing vehicle transmission construction information and vehicle traffic information, reduce the possibility that the vehicle takes place crowdedly and reduce the probability that the vehicle invades the construction area, improve constructor's factor of safety is solved.
Description
Technical Field
The invention relates to the technical field of highways, in particular to a warning system for highway maintenance construction.
Background
At present, the highway is used as an important infrastructure for national economic development to play an important role all the time, but along with the increase of the operating mileage of the highway and the increase of the service life of a road surface, the maintenance amount of the highway is also increased year by year, and the traffic condition of a construction operation area is also increasingly complex, so that the safety problem of construction operation is more severe;
the construction operation of the highway is usually carried out under the condition of not closing the traffic of the whole pavement, and the traffic flow and the complex field operation environment are easy to bring high risk to the maintenance and construction operation of the highway. The construction operation occupies partial lane road surface, so that road traffic bottleneck is easy to form, and road traffic is not smooth and blocked, once the safety management of the construction operation is insufficient, the placement of traffic signs and safety facilities is not perfect, the speed of vehicles passing around a construction operation area is too high, and road safety accidents are easily caused by the border-crossing operation of constructors due to slight negligence;
therefore, the invention provides a warning system for highway maintenance construction, which is used for transmitting construction information and vehicle traffic information to passing vehicles during highway section construction, reducing the possibility of vehicle congestion, reducing the probability of vehicle intrusion into a construction area and improving the safety factor of constructors.
Disclosure of Invention
The invention provides a warning system for highway maintenance construction, which is used for transmitting construction information and vehicle passing information to passing vehicles during highway section construction, reducing the possibility of vehicle congestion, reducing the probability of vehicle intrusion into a construction area and improving the safety factor of constructors.
The invention provides a warning system for highway maintenance construction, which comprises:
the data acquisition module is used for acquiring data of a current construction road section and vehicle information of the current road section;
the data processing module is used for analyzing and processing the current construction road section data and the current road section vehicle information and determining the current construction progress and the current traffic flow;
the data display module is used for displaying the current construction progress and the current traffic flow on a display screen preset on the construction road section;
and the alarm module is used for carrying out early warning and reminding on vehicles in the current road section when judging that the current construction road section causes traffic congestion in the current road section based on the display result.
Preferably, a warning system during highway maintenance construction, data acquisition module includes:
the angle adjusting unit is used for acquiring the relative angle between the data acquisition unit and the current construction road section, and adjusting the relative angle based on a preset standard angle to obtain a target angle, wherein the data acquisition units are multiple and are respectively arranged at different positions of the current construction road section;
the positioning unit is used for acquiring the position information of each data acquisition unit after the relative angle adjustment and transmitting the position information to the control unit;
the data acquisition unit is used for acquiring image data of a construction site after the target angle is adjusted, and screening target image data which contains construction workers and has the distance between the construction workers and the mobile mechanical equipment within a preset distance range from the image data;
and the control unit is used for splicing and integrating the target image data based on the position information of each data acquisition unit to obtain the data of the current construction road section.
Preferably, a warning system during highway maintenance construction, the data acquisition module still includes:
the system comprises a vehicle information acquisition unit, a road information acquisition unit and a road information processing unit, wherein the vehicle information acquisition unit is used for acquiring vehicle information on a current road section, and the vehicle information comprises a license plate number and the time of driving to the current road section;
the counting unit is used for acquiring the number of vehicles driving to the current road section;
the verification unit is used for comparing the number of the acquired license plate numbers with the number of vehicles driving to the current road section;
if the number of the license plate numbers is consistent with the number of the vehicles driving to the current road section, obtaining final vehicle information of the current road section;
if not, checking whether the vehicles of the current road section acquired in the counting unit contain unlicensed vehicles or not;
if the number of the vehicles driving to the current road section is the same as the number of the vehicles driving to the current road section, the final vehicle information of the current road section is obtained;
and if no license-free vehicles are contained, re-collecting the vehicle information of the current road section until the number of license plate numbers is consistent with the number of vehicles driving to the current road section.
Preferably, the warning system for highway maintenance construction, the data processing module includes:
the image processing unit is used for determining texture feature point information and marker information in the construction image of the current road section, wherein the marker information is multiple;
the image processing unit is further used for determining a target marker from the multiple markers according to the texture feature point information and determining the pose of the target marker;
the image processing unit is further configured to divide the current road segment construction image into a plurality of image blocks according to the pose of the target marker, determine pixel variance values corresponding to the image blocks, and meanwhile, remove image blocks smaller than preset variance values in the pixel variance values of the image blocks by taking the preset pixel variance values as a reference to obtain target image blocks;
the image processing unit is further used for extracting a noise feature map of the target image block based on a preset image noise processing model, wherein the dimension of the noise feature map is higher than that of the current road section construction image;
the image processing module is further used for denoising the target image block based on the noise characteristic map, fusing the denoised target image block to obtain a final construction image, and meanwhile, performing parameter conversion on the final construction image based on a preset convolutional neural network model to obtain an image to be processed;
the image processing unit is further configured to perform image feature extraction on the image to be processed to obtain features corresponding to each pixel point in the image to be processed, and score the features based on a preset scoring rule to obtain an evaluation score of the features;
the image processing unit is further configured to determine that the feature is valid when the evaluation score is greater than or equal to the preset evaluation score, and otherwise, determine that the feature is invalid, and re-extract the feature of the image to be processed until the evaluation score is greater than or equal to the preset evaluation score;
the data conversion unit is used for performing data conversion on the features to obtain feature data corresponding to the features when the features are judged to be valid;
the construction drawing acquisition unit is used for acquiring a construction drawing corresponding to the current road construction and constructing a construction entity model based on the construction drawing;
the construction progress determining unit is used for decomposing the construction entity model into a plurality of progress modules according to a construction task and respectively determining construction characteristic data corresponding to each progress module;
the construction progress determining unit is further configured to match feature data corresponding to each feature in the current construction road section image with construction feature data corresponding to each progress module to obtain a construction progress of the current road section;
the construction progress determining unit is also used for comparing the construction progress with a preset construction progress;
if the construction progress is larger than or equal to the preset construction progress, judging that the current construction progress is qualified, and continuously monitoring the construction progress of the current road section;
otherwise, judging that the construction progress of the current road section is unqualified, adjusting the construction progress of the current road section, sending the adjusted road section construction plan to constructors, and sending a construction progress early warning signal.
Preferably, the warning system during highway maintenance construction, data processing module still includes:
the system comprises a first data acquisition unit, a second data acquisition unit and a third data acquisition unit, wherein the first data acquisition unit is used for acquiring vehicle information of a current road section, and the vehicle information comprises time information of vehicles passing through the current road section and the total number of the vehicles;
the device comprises a setting unit, a judging unit and a judging unit, wherein the setting unit is used for setting unit time length and determining the total number of vehicles passing through a current road section in the unit time length;
the first calculating unit is used for calculating the traffic flow of the current road section in unit time according to the total number of vehicles passing through the current road section in unit time, and comprises the following specific steps:
wherein eta represents the traffic flow of the current road section in unit time; alpha represents the total number of vehicles passing through the current road section in unit time; t represents a value of length per unit time; epsilon represents a peak hour coefficient, and the value range is (1.1, 1.3); t represents the time length value used by the vehicle to pass through the current road section; (ii) a V represents an average traveling speed of the vehicle on the current road section; x represents the average vehicle distance between every two vehicles; d represents the vehicle average body length value;
and the first alarm unit is used for comparing the calculated traffic flow with a preset traffic flow and sending warning information to the vehicle on the current road section when the calculated traffic flow is greater than the preset traffic flow.
Preferably, the warning system for highway maintenance construction, the data display module, includes:
the data coding unit is used for acquiring the construction progress of the current road section and the traffic flow of the current road section, and coding data corresponding to the construction progress of the current road section and the traffic flow of the current road section based on a preset coding mode to obtain data to be displayed;
the data reading and writing unit is used for writing the data to be displayed into a main control unit in a preset display screen on the construction road section based on a preset communication interface;
the main control unit is used for determining a target mode of displaying data on the display screen according to the received data to be displayed and controlling a power supply to provide driving current for the display screen based on the target mode;
and the display unit is used for displaying the data to be displayed according to the target mode.
Preferably, the warning system during highway maintenance construction, the alarm module includes:
the second data acquisition unit is used for acquiring the passing speed of the vehicle on the current road section and acquiring the preset passing speed;
the first data comparison unit is used for comparing the passing speed with a preset passing speed, and when the passing speed is smaller than the preset passing speed, judging that the current construction road section can cause congestion to vehicles on the current road section;
the second alarm unit is used for generating an emergency early warning pushing configuration file based on the judgment result, wherein the emergency early warning pushing configuration file comprises the construction progress of the current construction road section and the vehicle passing condition;
the second alarm unit is further used for triggering a wireless network trigger element in the preset early warning device when the vehicle approaches the preset early warning device, waking up the wireless network communication element of the preset early warning device to be in relay wireless network connection with the vehicle-mounted signal receiver, and broadcasting the emergency early warning push configuration file based on vehicle-mounted broadcasting.
Preferably, a warning system during highway maintenance construction, when the vehicle is close to and predetermines early warning device, still include:
the third data acquisition unit is used for acquiring the passing speed of the vehicle when the vehicle approaches the preset early warning device;
a second calculation unit for calculating an average braking distance of the vehicle by a passing speed of the vehicle according to the following formula:
wherein β represents an average braking distance of the vehicle; i represents the number of vehicles passing through the current road section; n represents the total number of vehicles passing through the current road section; rho represents an inertia coefficient, and the value range is (0.8, 1);
the speed value of the ith vehicle approaching the preset early warning device is represented; h isiA value representing the length of reaction time for the ith vehicle driver;
representing the speed value reached by the ith vehicle after braking; mu represents the friction coefficient between the vehicle and the ground, and the value range is (0.6, 0.8); g is 9.8m/s2；
The third calculating unit is used for calculating the conditional probability of the vehicle avoiding the construction road section according to the following formula by the braking distance of the vehicle:
wherein gamma represents the conditional probability of the vehicle avoiding the construction road section, and the value range is (0%, 100%); q represents the total number of vehicles successfully avoiding the construction road section; m represents the total number of vehicles passing through the preset early warning device; l represents a length value of the current road section; β represents an average braking distance of the vehicle;
the second data comparison unit is used for comparing the calculated conditional probability of avoiding the construction road section with a preset probability;
if the calculated conditional probability of avoiding the construction road section is greater than or equal to the preset probability, judging that the preset early warning device is placed at a proper position;
and if not, judging that the preset early warning device is not placed properly, adjusting the placed position of the preset early warning device, and reminding a running vehicle on the current construction road section to brake in advance until the calculated conditional probability of avoiding the construction road section is greater than or equal to the preset probability.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a diagram illustrating a warning system for highway maintenance according to an embodiment of the present invention;
FIG. 2 is an internal structural diagram of a data acquisition module in the warning system during highway maintenance according to the embodiment of the present invention;
fig. 3 is an internal structural diagram of a data display module in an alarm system during highway maintenance according to an embodiment of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example 1:
the embodiment provides a warning system for highway maintenance construction, as shown in fig. 1, including:
the data acquisition module is used for acquiring data of a current construction road section and vehicle information of the current road section;
the data processing module is used for analyzing and processing the current construction road section data and the current road section vehicle information and determining the current construction progress and the current traffic flow;
the data display module is used for displaying the current construction progress and the current traffic flow on a display screen preset on the construction road section;
and the alarm module is used for carrying out early warning and reminding on vehicles in the current road section when judging that the current construction road section causes traffic congestion in the current road section based on the display result.
In this embodiment, the current construction section data refers to the length of the construction section, the speed of construction, the progress of construction, and the like.
In this embodiment, the current link vehicle information refers to the number of vehicles passing through the current link, the traveling speed of the vehicle, and the like.
In this embodiment, the preset display screen is set in advance, and may be set 150 meters ahead of the construction road section, for example.
In this embodiment, the current construction road segment is dependent on the current road segment because the construction road segment only occupies a part of all the whole road segments, for example, the total length of the current road segment is 200 meters, and the current construction road segment occupies 50 meters in the current road segment.
The beneficial effects of the above technical scheme are: the problem of when carrying out the highway section construction, to passing vehicle transmission construction information and vehicle traffic information, reduce the possibility that the vehicle takes place crowdedly and reduce the probability that the vehicle invades the construction area is solved, improve constructor's factor of safety.
Example 2:
on the basis of the foregoing embodiment 1, this embodiment provides a warning system for highway maintenance, as shown in fig. 2, the data acquisition module includes:
the angle adjusting unit is used for acquiring the relative angle between the data acquisition unit and the current construction road section, and adjusting the relative angle based on a preset standard angle to obtain a target angle, wherein the data acquisition units are multiple and are respectively arranged at different positions of the current construction road section;
the positioning unit is used for acquiring the position information of each data acquisition unit after the relative angle adjustment and transmitting the position information to the control unit;
the data acquisition unit is used for acquiring image data of a construction site after the target angle is adjusted, and screening target image data which contains construction workers and has the distance between the construction workers and the mobile mechanical equipment within a preset distance range from the image data;
and the control unit is used for splicing and integrating the target image data based on the position information of each data acquisition unit to obtain the data of the current construction road section.
In this embodiment, the relative angle refers to a horizontal included angle between the data acquisition unit and the construction road section, and the value range is 0 to 180 degrees.
In this embodiment, the preset standard angle is set in advance, and the preset standard angle enables the data acquisition unit to comprehensively acquire the construction data of the construction road section, and the construction data is obtained through multiple times of training.
In this embodiment, the target angle refers to an included angle between the data acquisition unit and the construction road section after the angle of the data acquisition unit is adjusted according to the preset standard angle.
In this embodiment, the mobile mechanical equipment refers to mechanical equipment required for construction of a construction section.
In this embodiment, the preset distance range is set in advance, and may be 2 meters, for example.
In this embodiment, the target image data refers to a general term of an image that meets requirements obtained after the acquired image is screened.
The beneficial effects of the above technical scheme are: through the included angle between adjustment data acquisition unit and the construction highway section, ensure that data acquisition unit can omnidirectional collection construction data, screen the construction image who gathers simultaneously for the construction data who finally obtains is enough accurate, has ensured the accuracy to the past vehicle transmission construction information, thereby has reduced the probability that the crowded condition of vehicle takes place.
Example 3:
on the basis of the above embodiment 1, this embodiment provides a warning system during highway maintenance construction, the data acquisition module further includes:
the system comprises a vehicle information acquisition unit, a road information acquisition unit and a road information processing unit, wherein the vehicle information acquisition unit is used for acquiring vehicle information on a current road section, and the vehicle information comprises a license plate number and the time of driving to the current road section;
the counting unit is used for acquiring the number of vehicles driving to the current road section;
the verification unit is used for comparing the number of the acquired license plate numbers with the number of vehicles driving to the current road section;
if the number of the license plate numbers is consistent with the number of the vehicles driving to the current road section, obtaining final vehicle information of the current road section;
if not, checking whether the vehicles of the current road section acquired in the counting unit contain unlicensed vehicles or not;
if the number of the vehicles driving to the current road section is the same as the number of the vehicles driving to the current road section, the final vehicle information of the current road section is obtained;
and if no license-free vehicles are contained, re-collecting the vehicle information of the current road section until the number of license plate numbers is consistent with the number of vehicles driving to the current road section.
The beneficial effects of the above technical scheme are: the number of the license plates of the vehicles on the current road section and the number of the vehicles on the current road section are counted, so that the accuracy of counting the number of the vehicles on the current road section is ensured, the system can conveniently analyze whether the congestion condition occurs, and meanwhile, convenience is provided for determining the traffic flow.
Example 4:
on the basis of the foregoing embodiment 1, this embodiment provides an alarm system for highway maintenance, and the data processing module includes:
the image processing unit is used for acquiring a construction image of a current road section and determining texture feature point information and marker information in the construction image of the current road section, wherein the number of the marker information is multiple;
the image processing unit is further used for determining a target marker from the multiple markers according to the texture feature point information and determining the pose of the target marker;
the image processing unit is further configured to divide the current road segment construction image into a plurality of image blocks according to the pose of the target marker, determine pixel variance values corresponding to the image blocks, and meanwhile, remove image blocks smaller than preset variance values in the pixel variance values of the image blocks by taking the preset pixel variance values as a reference to obtain target image blocks;
the image processing unit is further used for extracting a noise feature map of the target image block based on a preset image noise processing model, wherein the dimension of the noise feature map is higher than that of the current road section construction image;
the image processing module is further used for denoising the target image block based on the noise characteristic map, fusing the denoised target image block to obtain a final construction image, and meanwhile, performing parameter conversion on the final construction image based on a preset convolutional neural network model to obtain an image to be processed;
the image processing unit is further configured to perform image feature extraction on the image to be processed to obtain features corresponding to each pixel point in the image to be processed, and score the features based on a preset scoring rule to obtain an evaluation score of the features;
the image processing unit is further configured to determine that the feature is valid when the evaluation score is greater than or equal to the preset evaluation score, and otherwise, determine that the feature is invalid, and re-extract the feature of the image to be processed until the evaluation score is greater than or equal to the preset evaluation score;
the data conversion unit is used for performing data conversion on the features to obtain feature data corresponding to the features when the features are judged to be valid;
the construction drawing acquisition unit is used for acquiring a construction drawing corresponding to the current road construction and constructing a construction entity model based on the construction drawing;
the construction progress determining unit is used for decomposing the construction entity model into a plurality of progress modules according to a construction task and respectively determining construction characteristic data corresponding to each progress module;
the construction progress determining unit is further configured to match feature data corresponding to each feature in the current construction road section image with construction feature data corresponding to each progress module to obtain a construction progress of the current road section;
the construction progress determining unit is also used for comparing the construction progress with a preset construction progress;
if the construction progress is larger than or equal to the preset construction progress, judging that the current construction progress is qualified, and continuously monitoring the construction progress of the current road section;
otherwise, judging that the construction progress of the current road section is unqualified, adjusting the construction progress of the current road section, sending the adjusted road section construction plan to constructors, and sending a construction progress early warning signal.
In this embodiment, the texture feature point information is used to describe surface properties corresponding to the construction image or the image area, such as the thickness and density of the image texture.
In this embodiment, the marker information may be a telegraph pole beside the construction section, or a marker made in advance in the construction section, such as a construction pile.
In this embodiment, the pose of the target marker refers to the pose of the marker, which facilitates determining the shooting angle of the current image according to the pose.
In this embodiment, the preset pixel variance value is set in advance, and is used to measure whether the pixel variance value of the image meets the standard.
In this embodiment, the noise feature map refers to the fact that the noise in the image is imaged, so that the type and the amount of the noise existing in the current construction image can be conveniently checked.
In this embodiment, the reason that the dimension of the noise feature map is higher than that of the current road segment construction image is to remove only image noise without affecting a main body in the construction image when the noise in the construction image is processed, and the dimension is a condition for removing the noise.
In this embodiment, the preset convolutional neural network model is set in advance, and is used for converting the format or parameters of the image, so as to facilitate the image processing unit to more accurately process the image.
In this embodiment, the feature corresponding to each pixel point refers to a feature point that can significantly reflect the construction situation in the construction image, for example, the construction range or the finished length can be significantly seen in the construction image.
In this embodiment, the preset scoring rule is set in advance, is obtained through multiple training, and is used for evaluating the extracted features, so that features corresponding to the pixels meeting the requirements can be conveniently selected.
In this embodiment, the preset evaluation score is an evaluation criterion used to determine whether the features are valid or not and qualified, and the features corresponding to the pixel points are valid only when the evaluation score corresponding to the features is greater than or equal to the preset evaluation score, and are obtained through multiple training.
In this embodiment, the preset construction progress is determined for the construction progress of each time period before construction, and is used to measure whether the current construction progress meets the initially set requirement.
In this embodiment, the construction entity model refers to that the construction condition of the current road segment is subjected to entity modeling, and is a reduced version of the actual construction condition.
The beneficial effects of the above technical scheme are: by acquiring the image of the construction road section, extracting the characteristic information in the image of the construction road section, matching the characteristic information of the construction road section with the characteristic data corresponding to the construction entity model established according to the construction drawing to obtain the construction progress of the current road section, ensuring the accuracy of the obtained construction progress, comparing the obtained construction progress with the preset construction progress, and being beneficial to timely adjusting when the construction progress does not meet the requirements, thereby reducing the occurrence of the condition of causing the road section congestion and improving the safety factor of constructors.
Example 5:
on the basis of the foregoing embodiment 1, this embodiment provides an alarm system for highway maintenance, and the data processing module further includes:
the system comprises a first data acquisition unit, a second data acquisition unit and a third data acquisition unit, wherein the first data acquisition unit is used for acquiring vehicle information of a current road section, and the vehicle information comprises time information of vehicles passing through the current road section and the total number of the vehicles;
the device comprises a setting unit, a judging unit and a judging unit, wherein the setting unit is used for setting unit time length and determining the total number of vehicles passing through a current road section in the unit time length;
the first calculating unit is used for calculating the traffic flow of the current road section in unit time according to the total number of vehicles passing through the current road section in unit time, and comprises the following specific steps:
wherein eta represents the traffic flow of the current road section in unit time; alpha represents the total number of vehicles passing through the current road section in unit time; t represents a value of length per unit time; epsilon represents a peak hour coefficient, and the value range is (1.1, 1.3); t represents the time length value used by the vehicle to pass through the current road section; v represents an average traveling speed of the vehicle on the current road section; x represents the average vehicle distance between every two vehicles; d represents the vehicle average body length value;
and the first alarm unit is used for comparing the calculated traffic flow with a preset traffic flow and sending warning information to the vehicle on the current road section when the calculated traffic flow is greater than the preset traffic flow.
In this embodiment, the unit time length is set in advance, and may be one hour, two hours, five hours, or the like.
In this embodiment, the peak hour coefficient, expressed as the ratio of peak hour traffic to peak hour flow rate, is a parameter in calculating the traffic flow.
In this embodiment, the preset traffic flow is counted in advance, and when the calculated traffic flow is greater than the preset traffic flow, it indicates that congestion may occur.
The beneficial effects of the above technical scheme are: by acquiring the vehicle information on the current road section and setting the unit time length, the influence of the vehicle distance and the vehicle body on the vehicle flow is involved, and the length of the current construction road section is fixed, so that the vehicle distance and the vehicle body directly influence the vehicle flow of the current road section.
Example 6:
on the basis of the foregoing embodiment 1, this embodiment provides a warning system for highway maintenance, as shown in fig. 3, the data display module includes:
the data coding unit is used for acquiring the construction progress of the current road section and the traffic flow of the current road section, and coding data corresponding to the construction progress of the current road section and the traffic flow of the current road section based on a preset coding mode to obtain data to be displayed;
the data reading and writing unit is used for writing the data to be displayed into a main control unit in a preset display screen on the construction road section based on a preset communication interface;
the main control unit is used for determining a target mode of displaying data on the display screen according to the received data to be displayed and controlling a power supply to provide driving current for the display screen based on the target mode;
and the display unit is used for displaying the data to be displayed according to the target mode.
In this embodiment, the preset encoding mode is set in advance, for example, the data to be displayed may be converted into binary data.
In this embodiment, the preset communication interface refers to a data exchange interface between the preset display screen and the data encoding unit, and the encoded data is directly read through the preset communication interface.
In this embodiment, the target mode refers to a method for displaying data on a display screen, and may be, for example, a continuous bright screen display or an intermittent bright screen display.
The beneficial effects of the above technical scheme are: through encoding and displaying the construction progress and the traffic flow information, the basic information of the current construction road section can be conveniently and timely checked by passing vehicles, so that the driving route can be conveniently and timely adjusted by a driver, the safety factor of constructors is improved, and the possibility of occurrence of the crowded condition of the vehicles is reduced.
Example 7:
on the basis of the above embodiment 1, this embodiment provides a warning system during highway maintenance construction, and the alarm module includes:
the second data acquisition unit is used for acquiring the passing speed of the vehicle on the current road section and acquiring the preset passing speed;
the first data comparison unit is used for comparing the passing speed with a preset passing speed, and when the passing speed is smaller than the preset passing speed, judging that the current construction road section can cause congestion to vehicles on the current road section;
the second alarm unit is used for generating an emergency early warning pushing configuration file based on the judgment result, wherein the emergency early warning pushing configuration file comprises the construction progress of the current construction road section and the vehicle passing condition;
the second alarm unit is further used for triggering a wireless network trigger element in the preset early warning device when the vehicle approaches the preset early warning device, waking up the wireless network communication element of the preset early warning device to be in relay wireless network connection with the vehicle-mounted signal receiver, and broadcasting the emergency early warning push configuration file based on vehicle-mounted broadcasting.
In this embodiment, the preset traffic speed is set in advance, is obtained by performing multiple detections when the road section is not crowded, and is a measurement standard for measuring whether the construction road section is crowded or not.
In this embodiment, the emergency alert push profile is generated by the alarm unit when the vehicle is about to be crowded, so as to transmit the road condition information about the imminent congestion to the passing vehicles.
In this embodiment, the wireless network triggering element is arranged in the preset early warning device, and aims to establish wireless network connection with a vehicle-mounted antenna in a passing vehicle, so as to transmit road condition information to the passing vehicle.
The beneficial effects of the above technical scheme are: by judging whether the vehicles are crowded or not and timely sending the report to the passing vehicles through the vehicle-mounted broadcast when the vehicles are crowded, the situation of the vehicles are effectively relieved, and the safety factor of constructors is improved on the other hand.
Example 8:
on the basis of the above embodiment 7, this embodiment provides a warning system for highway maintenance, when a vehicle approaches a preset warning device, the warning system further includes:
the third data acquisition unit is used for acquiring the passing speed of the vehicle when the vehicle approaches the preset early warning device;
a second calculation unit for calculating an average braking distance of the vehicle by a passing speed of the vehicle according to the following formula:
wherein β represents an average braking distance of the vehicle; i represents the number of vehicles passing through the current road section; n represents the total number of vehicles passing through the current road section; rho represents an inertia coefficient, and the value range is (0.8, 1);
the speed value of the ith vehicle approaching the preset early warning device is represented; h isiA value representing the length of reaction time for the ith vehicle driver;
representing the speed value reached by the ith vehicle after braking; mu represents the friction coefficient between the vehicle and the ground, and the value range is (0.6, 0.8); g is 9.8m/s2；
The third calculating unit is used for calculating the conditional probability of the vehicle avoiding the construction road section according to the following formula by the braking distance of the vehicle:
wherein gamma represents the conditional probability of the vehicle avoiding the construction road section, and the value range is (0%, 100%); q represents the total number of vehicles successfully avoiding the construction road section; m represents the total number of vehicles passing through the preset early warning device; l represents a length value of the current road section; β represents an average braking distance of the vehicle;
the second data comparison unit is used for comparing the calculated conditional probability of avoiding the construction road section with a preset probability;
if the calculated conditional probability of avoiding the construction road section is greater than or equal to the preset probability, judging that the preset early warning device is placed at a proper position;
and if not, judging that the preset early warning device is not placed properly, adjusting the placed position of the preset early warning device, and reminding a running vehicle on the current construction road section to brake in advance until the calculated conditional probability of avoiding the construction road section is greater than or equal to the preset probability.
In this embodiment, the inertia coefficient refers to a parameter that causes a change in braking distance due to the vehicle's own weight during braking.
In this embodiment of the present invention,
the reaction distance of the driver after seeing the warning information is shown.
In this embodiment of the present invention,
indicating the distance the vehicle travels after the driver takes braking action and is affected by inertia.
In this embodiment, the conditional probability refers to the road where a certain event occurs under a certain condition, and here refers to the probability that the vehicle evades the construction area at a certain braking distance.
In this embodiment of the present invention,
refers to the influence of conditions on the probability of avoiding the construction area.
In this embodiment, the preset probability is set in advance, and is a measurement parameter for measuring whether the probability of the vehicle avoiding the construction area can meet the requirement.
The beneficial effects of the above technical scheme are: the probability of the vehicle successfully avoiding the construction area is calculated by calculating the braking distance of the vehicle, the sum of the reaction distance and the braking distance of a driver is related to when the braking distance is calculated, the calculated braking distance is ensured to be accurate enough, the influence of the braking distance on the successfully avoiding the construction area is related to when the probability is calculated, and the ratio of the number of vehicles successfully avoiding the construction area to the total number of vehicles is related, so that the calculated probability is scientific and accurate.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. A warning system during highway maintenance construction, characterized by comprising:
the data acquisition module is used for acquiring data of a current construction road section and vehicle information of the current road section;
the data processing module is used for analyzing and processing the current construction road section data and the current road section vehicle information and determining the current construction progress and the current traffic flow;
the data display module is used for displaying the current construction progress and the current traffic flow on a display screen preset on the construction road section;
and the alarm module is used for carrying out early warning and reminding on vehicles in the current road section when judging that the current construction road section causes traffic congestion in the current road section based on the display result.
2. The warning system for highway maintenance construction according to claim 1, wherein the data acquisition module comprises:
the angle adjusting unit is used for acquiring the relative angle between the data acquisition unit and the current construction road section, and adjusting the relative angle based on a preset standard angle to obtain a target angle, wherein the data acquisition units are multiple and are respectively arranged at different positions of the current construction road section;
the positioning unit is used for acquiring the position information of each data acquisition unit after the relative angle adjustment and transmitting the position information to the control unit;
the data acquisition unit is used for acquiring image data of a construction site after the target angle is adjusted, and screening target image data which contains construction workers and has the distance between the construction workers and the mobile mechanical equipment within a preset distance range from the image data;
and the control unit is used for splicing and integrating the target image data based on the position information of each data acquisition unit to obtain the data of the current construction road section.
3. The warning system for highway maintenance construction according to claim 1, wherein the data collecting module further comprises:
the system comprises a vehicle information acquisition unit, a road information acquisition unit and a road information processing unit, wherein the vehicle information acquisition unit is used for acquiring vehicle information on a current road section, and the vehicle information comprises a license plate number and the time of driving to the current road section;
the counting unit is used for acquiring the number of vehicles driving to the current road section;
the verification unit is used for comparing the number of the acquired license plate numbers with the number of vehicles driving to the current road section;
if the number of the license plate numbers is consistent with the number of the vehicles driving to the current road section, obtaining final vehicle information of the current road section;
if not, checking whether the vehicles of the current road section acquired in the counting unit contain unlicensed vehicles or not;
if the number of the vehicles driving to the current road section is the same as the number of the vehicles driving to the current road section, the final vehicle information of the current road section is obtained;
and if no license-free vehicles are contained, re-collecting the vehicle information of the current road section until the number of license plate numbers is consistent with the number of vehicles driving to the current road section.
4. The warning system for highway maintenance construction according to claim 1, wherein the data processing module comprises:
the image processing unit is used for acquiring a current road section construction image and determining texture feature point information and marker information in the current road section construction image, wherein the number of the marker information is multiple;
the image processing unit is further used for determining a target marker from the multiple markers according to the texture feature point information and determining the pose of the target marker;
the image processing unit is further configured to divide the current road segment construction image into a plurality of image blocks according to the pose of the target marker, determine pixel variance values corresponding to the image blocks, and meanwhile, remove image blocks smaller than preset variance values in the pixel variance values of the image blocks by taking the preset pixel variance values as a reference to obtain target image blocks;
the image processing unit is further used for extracting a noise feature map of the target image block based on a preset image noise processing model, wherein the dimension of the noise feature map is higher than that of the current road section construction image;
the image processing module is further used for denoising the target image block based on the noise characteristic map, fusing the denoised target image block to obtain a final construction image, and meanwhile, performing parameter conversion on the final construction image based on a preset convolutional neural network model to obtain an image to be processed;
the image processing unit is further configured to perform image feature extraction on the image to be processed to obtain features corresponding to each pixel point in the image to be processed, and score the features based on a preset scoring rule to obtain an evaluation score of the features;
the image processing unit is further configured to determine that the feature is valid when the evaluation score is greater than or equal to the preset evaluation score, and otherwise, determine that the feature is invalid, and re-extract the feature of the image to be processed until the evaluation score is greater than or equal to the preset evaluation score;
the data conversion unit is used for performing data conversion on the features to obtain feature data corresponding to the features when the features are judged to be valid;
the construction drawing acquisition unit is used for acquiring a construction drawing corresponding to the current road construction and constructing a construction entity model based on the construction drawing;
the construction progress determining unit is used for decomposing the construction entity model into a plurality of progress modules according to a construction task and respectively determining construction characteristic data corresponding to each progress module;
the construction progress determining unit is further configured to match feature data corresponding to each feature in the current construction road section image with construction feature data corresponding to each progress module to obtain a construction progress of the current road section;
the construction progress determining unit is also used for comparing the construction progress with a preset construction progress;
if the construction progress is larger than or equal to the preset construction progress, judging that the current construction progress is qualified, and continuously monitoring the construction progress of the current road section;
otherwise, judging that the construction progress of the current road section is unqualified, adjusting the construction progress of the current road section, sending the adjusted road section construction plan to constructors, and sending a construction progress early warning signal.
5. The warning system for highway maintenance construction according to claim 1, wherein the data processing module further comprises:
the system comprises a first data acquisition unit, a second data acquisition unit and a third data acquisition unit, wherein the first data acquisition unit is used for acquiring vehicle information of a current road section, and the vehicle information comprises time information of vehicles passing through the current road section and the total number of the vehicles;
the device comprises a setting unit, a judging unit and a judging unit, wherein the setting unit is used for setting unit time length and determining the total number of vehicles passing through a current road section in the unit time length;
the first calculating unit is used for calculating the traffic flow of the current road section in unit time according to the total number of vehicles passing through the current road section in unit time, and comprises the following specific steps:
wherein eta represents the traffic flow of the current road section in unit time; alpha represents the total number of vehicles passing through the current road section in unit time; t represents a value of length per unit time; epsilon represents a peak hour coefficient, and the value range is (1.1, 1.3); t represents the time length value used by the vehicle to pass through the current road section; v represents an average traveling speed of the vehicle on the current road section; x represents the average vehicle distance between every two vehicles; d represents the vehicle average body length value;
and the first alarm unit is used for comparing the calculated traffic flow with a preset traffic flow and sending warning information to the vehicle on the current road section when the calculated traffic flow is greater than the preset traffic flow.
6. The warning system for highway maintenance construction according to claim 1, wherein the data display module comprises:
the data coding unit is used for acquiring the construction progress of the current road section and the traffic flow of the current road section, and coding data corresponding to the construction progress of the current road section and the traffic flow of the current road section based on a preset coding mode to obtain data to be displayed;
the data reading and writing unit is used for writing the data to be displayed into a main control unit in a preset display screen on the construction road section based on a preset communication interface;
the main control unit is used for determining a target mode of displaying data on the display screen according to the received data to be displayed and controlling a power supply to provide driving current for the display screen based on the target mode;
and the display unit is used for displaying the data to be displayed according to the target mode.
7. The warning system for highway maintenance construction according to claim 1, wherein the alarm module comprises:
the second data acquisition unit is used for acquiring the passing speed of the vehicle on the current road section and acquiring the preset passing speed;
the first data comparison unit is used for comparing the passing speed with a preset passing speed, and when the passing speed is smaller than the preset passing speed, judging that the current construction road section can cause congestion to vehicles on the current road section;
the second alarm unit is used for generating an emergency early warning pushing configuration file based on the judgment result, wherein the emergency early warning pushing configuration file comprises the construction progress of the current construction road section and the vehicle passing condition;
the second alarm unit is further used for triggering a wireless network trigger element in the preset early warning device when the vehicle approaches the preset early warning device, waking up the wireless network communication element of the preset early warning device to be in relay wireless network connection with the vehicle-mounted signal receiver, and broadcasting the emergency early warning push configuration file based on vehicle-mounted broadcasting.
8. The warning system for highway maintenance construction according to claim 7, further comprising when the vehicle approaches the preset warning device:
the third data acquisition unit is used for acquiring the passing speed of the vehicle when the vehicle approaches the preset early warning device;
a second calculation unit for calculating an average braking distance of the vehicle by a passing speed of the vehicle according to the following formula:
wherein β represents an average braking distance of the vehicle(ii) a i represents the number of vehicles passing through the current road section; n represents the total number of vehicles passing through the current road section; rho represents an inertia coefficient, and the value range is (0.8, 1);
the speed value of the ith vehicle approaching the preset early warning device is represented; h isiA value representing the length of reaction time for the ith vehicle driver;
representing the speed value reached by the ith vehicle after braking; mu represents the friction coefficient between the vehicle and the ground, and the value range is (0.6, 0.8); g is 9.8m/s2；
The third calculating unit is used for calculating the conditional probability of the vehicle avoiding the construction road section according to the following formula by the braking distance of the vehicle:
wherein gamma represents the conditional probability of the vehicle avoiding the construction road section, and the value range is (0%, 100%); q represents the total number of vehicles successfully avoiding the construction road section; m represents the total number of vehicles passing through the preset early warning device; l represents a length value of the current road section; β represents an average braking distance of the vehicle;
the second data comparison unit is used for comparing the calculated conditional probability of avoiding the construction road section with a preset probability;
if the calculated conditional probability of avoiding the construction road section is greater than or equal to the preset probability, judging that the preset early warning device is placed at a proper position;
and if not, judging that the preset early warning device is not placed properly, adjusting the placed position of the preset early warning device, and reminding a running vehicle on the current construction road section to brake in advance until the calculated conditional probability of avoiding the construction road section is greater than or equal to the preset probability.
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| CN202110631353.1A CN113223296A (en) | 2021-06-07 | 2021-06-07 | Warning system used during highway maintenance construction |
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| CN202110631353.1A CN113223296A (en) | 2021-06-07 | 2021-06-07 | Warning system used during highway maintenance construction |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113689737A (en) * | 2021-09-15 | 2021-11-23 | 浙江鼎海科技股份有限公司 | Traffic anti-collision warning system with dynamic display |
| CN114743384A (en) * | 2022-03-25 | 2022-07-12 | 京东方科技集团股份有限公司 | Alarm method and device |
| CN116153100A (en) * | 2023-04-20 | 2023-05-23 | 江西通慧科技集团股份有限公司 | Construction site monitoring method, system, equipment and medium based on Internet of things |
| CN117057682A (en) * | 2023-10-12 | 2023-11-14 | 深圳市睿拓新科技有限公司 | Traffic safety evaluation method and system during road construction |
-
2021
- 2021-06-07 CN CN202110631353.1A patent/CN113223296A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113689737A (en) * | 2021-09-15 | 2021-11-23 | 浙江鼎海科技股份有限公司 | Traffic anti-collision warning system with dynamic display |
| CN114743384A (en) * | 2022-03-25 | 2022-07-12 | 京东方科技集团股份有限公司 | Alarm method and device |
| CN114743384B (en) * | 2022-03-25 | 2024-03-08 | 京东方科技集团股份有限公司 | Alarm method and device |
| CN116153100A (en) * | 2023-04-20 | 2023-05-23 | 江西通慧科技集团股份有限公司 | Construction site monitoring method, system, equipment and medium based on Internet of things |
| CN117057682A (en) * | 2023-10-12 | 2023-11-14 | 深圳市睿拓新科技有限公司 | Traffic safety evaluation method and system during road construction |
| CN117057682B (en) * | 2023-10-12 | 2024-01-23 | 深圳市睿拓新科技有限公司 | Traffic safety evaluation method and system during road construction |
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Application publication date: 20210806 |