CN114743380A - Method for detecting traffic flow data quality of highway - Google Patents
Method for detecting traffic flow data quality of highway Download PDFInfo
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- CN114743380A CN114743380A CN202210208399.7A CN202210208399A CN114743380A CN 114743380 A CN114743380 A CN 114743380A CN 202210208399 A CN202210208399 A CN 202210208399A CN 114743380 A CN114743380 A CN 114743380A
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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
- G08G1/017—Detecting movement of traffic to be counted or controlled identifying vehicles
- G08G1/0175—Detecting movement of traffic to be counted or controlled identifying vehicles by photographing vehicles, e.g. when violating traffic rules
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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
-
- 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
- G08G1/052—Detecting movement of traffic to be counted or controlled with provision for determining speed or overspeed
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
Abstract
The invention discloses a method for detecting traffic flow data quality of an expressway, and relates to the technical field of expressway traffic. The method for detecting the traffic flow data quality of the highway comprises the following steps: photographing vehicles passing through a highway; processing the shot photos; detecting the speed of the vehicle; carrying out data processing and statistics on the obtained traffic information; under the condition that the line is normal, transmitting the traffic data to an expressway information processing center in a wired mode; and when the line is damaged, the traffic data is transmitted to the highway information processing center in a wireless transmission mode. According to the invention, through the arrangement of the infrared camera, the high-definition camera, the speed measuring radar, the information processor, the liquid crystal display screen, the information transmission line, the wireless transmission communicator and the memory, the automatic acquisition and the automatic processing of the traffic information are realized, and the traffic information is sent to the highway information processing center, so that a lot of manual operations are reduced, and the manual workload is reduced.
Description
Technical Field
The invention relates to the technical field of highway traffic, in particular to a highway traffic flow data quality detection method.
Background
With the development of intelligent traffic systems, traffic data acquisition devices are diversified, and acquired traffic data is also continuously abundant. The method is used for detecting the traffic data collected on the highway, then carrying out induction and storage, and when calling is needed, reading useful information at the highest speed to reduce the workload of manpower as much as possible.
Disclosure of Invention
The present invention aims to provide a method for detecting the traffic flow data quality of a highway, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the method for detecting the traffic flow data quality of the highway comprises the following steps:
s1: photographing vehicles passing on a highway;
s2: processing the shot photos, and identifying license plates, vehicle types and illegal conditions of drivers;
s3: detecting the speed of the vehicle;
s4: carrying out data processing and statistics on the obtained vehicle speed, the obtained license plate, the obtained vehicle type and the obtained illegal conditions of the driver, and sending the information to a liquid crystal display screen;
s5: under the condition that the line is normal, transmitting the traffic data to an expressway information processing center in a wired mode;
s6: when the line is damaged, the traffic data is transmitted to the highway information processing center in a wireless transmission mode;
s7: when the line and the wireless equipment are damaged, the traffic data are temporarily stored in the built-in storage module.
Furthermore, in step S1, the high-definition camera and the infrared camera are used in cooperation to photograph the vehicle, when the lighting condition is good in the daytime, the high-definition camera is used to photograph the vehicle when the vehicle passes through, when the lighting condition is insufficient at night, the infrared camera is used to photograph the vehicle when the vehicle passes through, and the photographed photograph is transmitted to the information processor.
Further, in step S2, the information processor is used to perform image recognition on the photo, recognize the license plate information and the vehicle model therein, and recognize whether the driver has illegal behaviors of unbuckled belts, making a call, and driving fatigue, and temporarily store the traffic information.
Furthermore, in step S3, a speed measuring radar is used to detect the speed of the vehicle, and whether the vehicle is overspeed is determined according to the lane where the vehicle is located, for example, if the vehicle is overspeed, the overspeed percentage is calculated.
Furthermore, in step S4, the traffic data of the license plate number, the vehicle type, the driver' S illegal condition and the driving speed of the vehicle are sent to the information processor for processing, the information is displayed on the liquid crystal display screen to remind the driver to correct the error in time, if no change is made in any of the plurality of continuous detection points, it is determined that the vehicle is illegal, and the data is recorded and temporarily stored in the information processor.
Further, the traffic data in step S5 is transmitted to the highway information processing center by wire transmission, at which point the wireless transmitter stops working, the transmission is only one of wire transmission, and the highway information processing center sends a feedback message to the information processor, indicating that the reception is successful.
Furthermore, if the information processor does not receive feedback information of the highway information processing center within a judgment time period and indicates that the wired transmission line is in a fault state at the moment, the information processor starts a wireless transmission communicator to transmit traffic data to the highway information processing center in a wireless mode, and the highway information processing center also sends feedback information to the wireless transmission communicator at the position, and then the wireless transmission communicator sends a feedback signal to the information processor to indicate that the wireless transmission is successful.
Furthermore, if the information processor does not receive the feedback signal sent by the wireless transmission communicator within a short judgment time, the information processor can default the fault of the wireless transmission communicator, at the moment, the information processor can send the traffic data to a built-in memory to temporarily store the traffic data, so that the data loss caused by the damage of both a wired line and a wireless transmission is avoided, and after the line maintenance is finished, the information processor sends the traffic information stored in the memory to the highway information processing center and deletes the originally stored information.
Compared with the prior art, the invention has the beneficial effects that:
the method for detecting the traffic flow data quality of the highway realizes automatic acquisition and automatic processing of traffic information by setting the infrared camera, the high-definition camera, the speed measuring radar, the information processor, the liquid crystal display screen, the information transmission line, the wireless transmission communicator and the memory, and sends the traffic information to the information processing center of the highway, thereby reducing a plurality of manual operations and reducing the manual workload.
In addition, the highway traffic flow data quality detection method uses three modes of an information transmission line, a wireless transmission communicator and a memory to transmit traffic data, avoids traffic data loss caused by some accidents, and further avoids certain influence on later data search.
Drawings
FIG. 1 is a schematic diagram of the general structure of the present invention;
FIG. 2 is a schematic diagram of information collection according to the present invention;
FIG. 3 is a schematic diagram of information processing according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that in the description of the present invention, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, and do not indicate or imply that the referred device or element must have a specific orientation, be configured in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Further, it will be appreciated that the dimensions of the various elements shown in the figures are not drawn to scale, for ease of description, and that the thickness or width of some layers may be exaggerated relative to other layers, for example.
It should be noted that like reference numerals and letters refer to like items in the following figures, and thus, once an item is defined or illustrated in one figure, it will not need to be further discussed or illustrated in detail in the description of the following figure.
As shown in fig. 1-3, the present invention provides a technical solution: the method for detecting the traffic flow data quality of the highway comprises the following steps: the method comprises the steps that a vehicle passing through a highway is photographed, the high-definition camera and the infrared camera are matched to photograph the vehicle, when the vehicle passes through in the daytime under good illumination conditions, the high-definition camera is used for photographing the vehicle, when the vehicle passes through in night illumination conditions, the infrared camera is used for photographing the vehicle when the vehicle passes through, and photographed pictures are transmitted to the information processor; processing the shot photos, identifying the license plate, the vehicle type and the illegal conditions of the driver, identifying the photos by using an information processor, identifying the license plate information and the vehicle type in the photos and whether the illegal behaviors of unbuckled safety belts, calling and fatigue driving exist in the driver or not, and temporarily storing the traffic information; detecting the speed of the vehicle by using a speed measuring radar, judging whether the vehicle is overspeed or not according to the lane where the vehicle is located, and if the vehicle is overspeed, calculating the overspeed percentage of the vehicle; the obtained vehicle speed, the license plate, the vehicle type and the illegal conditions of the driver are subjected to data processing and statistics, the information is sent to a liquid crystal display, the license plate number, the vehicle type, the illegal conditions of the driver and the traffic data of the driving speed of the vehicle are sent to an information processor to be processed, the information is displayed on the liquid crystal display to remind the driver to correct own errors in time, if the continuous detection points are not changed, the vehicle is judged to be illegal, the data is recorded and temporarily stored in the information processor; under the condition that a line is normal, transmitting traffic data to an expressway information processing center in a wired mode, transmitting the traffic data to the expressway information processing center in a wired transmission mode, stopping a wireless transmitter from working at the moment, completing transmission only in the wired transmission mode, and transmitting feedback information to an information processor at the expressway information processing center to show that the receiving is successful; when a line is damaged, traffic data are transmitted to an expressway information processing center in a wireless transmission mode, if the information processor does not receive feedback information of the expressway information processing center within a judgment time period and shows that a wired transmission line is in a fault state at the moment, a wireless transmission communicator is started to transmit the traffic data to the expressway information processing center in a wireless mode, and the expressway information processing center also sends feedback information to the wireless transmission communicator at the same time, and then sends a feedback signal to the information processor to show that the wireless transmission is successful; when both lines and wireless equipment are damaged, the traffic data are temporarily stored in a built-in storage module, if the information processor does not receive a feedback signal sent by a wireless transmission communicator within a short judging time, the fault of the wireless transmission communicator is acquiescent, the information processor sends the traffic data to a built-in memory at the moment, the traffic data are temporarily stored, the data are prevented from being lost when both the wired lines and the wireless transmission are damaged, and after the lines are maintained, the traffic information stored in the memory is sent to a highway information processing center by the information processor and the originally stored information is deleted.
The working principle is as follows: under the conditions of day and night, the passing vehicles are photographed by a high-definition camera and an infrared camera respectively, the driving speed of the passing vehicles is detected by a speed measuring radar, the information is sent to an information processor, the traffic information is displayed on a liquid crystal display screen, an illegal driver is reminded of correcting own errors in time, meanwhile, the traffic information is sent to a highway information processing center in a wired mode from an information transmission line, when the information transmission line is damaged, the traffic information is transmitted to the highway information processing center by a wireless transmission communicator, if the wireless transmission communicator is damaged, the traffic information is temporarily stored in a memory, and the traffic information is transmitted to the highway information processing center after the information transmission line and the wireless transmission communicator are maintained.
It should be noted that, in the method for detecting the traffic flow data quality on the highway, the automatic acquisition and the automatic processing of the traffic information are realized through the arrangement of the infrared camera, the high-definition camera, the speed measuring radar, the information processor, the liquid crystal display screen, the information transmission line, the wireless transmission communicator and the memory, and the traffic information is sent to the highway information processing center, so that a lot of manual operations are reduced, and the manual workload is reduced.
In addition, the highway traffic flow data quality detection method uses three modes of an information transmission line, a wireless transmission communicator and a memory to transmit traffic data, avoids traffic data loss caused by some accidents, and further avoids certain influence on later data search.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The method for detecting the traffic flow data quality of the highway is characterized by comprising the following steps: the method comprises the following steps:
s1: photographing vehicles passing through a highway;
s2: processing the shot photos, and identifying license plates, vehicle types and illegal conditions of drivers;
s3: detecting the speed of the vehicle;
s4: carrying out data processing and statistics on the obtained vehicle speed, the obtained license plate, the obtained vehicle type and the obtained illegal conditions of the driver, and sending the information to a liquid crystal display screen;
s5: under the condition that the line is normal, transmitting the traffic data to an expressway information processing center in a wired mode;
s6: when the line is damaged, the traffic data is transmitted to the highway information processing center in a wireless transmission mode;
s7: when the line and the wireless equipment are damaged, the traffic data are temporarily stored in the built-in storage module.
2. The method for detecting the quality of the traffic flow data of the highway according to claim 1, wherein the method comprises the following steps: and step S1, the high-definition camera and the infrared camera are matched to photograph the vehicle, when the vehicle passes through the high-definition camera under the condition of good daytime illumination condition, the high-definition camera is used to photograph the vehicle, when the night illumination condition is insufficient, the infrared camera is used to photograph the vehicle when the vehicle passes through the high-definition camera, and the photographed picture is transmitted to the information processor.
3. The method for detecting the quality of the traffic flow data of the highway according to claim 1, wherein the method comprises the following steps: in the step S2, the information processor is used to perform image recognition on the picture, identify the license plate information and the vehicle model thereof, and identify whether the driver has illegal behaviors of not fastening a seat belt, making a call, and driving fatigue, and temporarily store the traffic information.
4. The method for detecting the quality of the traffic flow data of the highway according to claim 1, wherein the method comprises the following steps: in the step S3, the speed measuring radar is used to detect the speed of the vehicle, and whether the vehicle is overspeed or not is determined according to the lane where the vehicle is located, and if the vehicle is overspeed, the overspeed percentage is calculated.
5. The method for detecting the quality of the traffic flow data of the highway according to claim 1, wherein the method comprises the following steps: in the step S4, the traffic data of the license plate number, the vehicle type, the driver' S illegal conditions, and the driving speed of the vehicle are sent to the information processor for processing, the information is displayed on the liquid crystal display screen to remind the driver to correct the error in time, if no change is made in a plurality of continuous detection points, the vehicle is determined to be illegal, the data is recorded, and the data is temporarily stored in the information processor.
6. The method for detecting the quality of the traffic flow data of the highway according to claim 1, wherein the method comprises the following steps: the traffic data in step S5 is transmitted to the highway information processing center by wire transmission, at this time, the wireless transmitter stops working, the transmission is only one of wire transmission, the transmission is completed, and the highway information processing center sends a feedback message to the information processor at this point, indicating that the reception is successful.
7. The method for detecting the quality of the traffic flow data of the highway according to claim 6, wherein the method comprises the following steps: if the information processor does not receive feedback information of the highway information processing center within a judgment time period and shows that the wired transmission line is in a fault state at the moment, the information processor starts a wireless transmission communicator to transmit traffic data to the highway information processing center in a wireless mode, the highway information processing center also sends feedback information to the wireless transmission communicator at the position, and then the wireless transmission communicator sends a feedback signal to the information processor to show that the wireless transmission is successful.
8. The method for detecting the quality of the traffic flow data on the highway according to claim 7, wherein the method comprises the following steps: if the information processor does not receive the feedback signal sent by the wireless transmission communicator within a short judgment time, the information processor can default the fault of the wireless transmission communicator, at the moment, the information processor can send the traffic data to a built-in memory to temporarily store the traffic data, the data loss when both a wired line and a wireless transmission are damaged is avoided, after the line maintenance is finished, the information processor sends the traffic information stored in the memory to an expressway information processing center, and the originally stored information is deleted.
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| CN202210208399.7A CN114743380A (en) | 2022-03-04 | 2022-03-04 | Method for detecting traffic flow data quality of highway |
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| CN202210208399.7A CN114743380A (en) | 2022-03-04 | 2022-03-04 | Method for detecting traffic flow data quality of highway |
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