CN113588507A - Automatic haze weather detection and warning system and device for road traffic - Google Patents
Automatic haze weather detection and warning system and device for road traffic Download PDFInfo
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Abstract
The invention discloses an automatic haze weather detection and warning system for road traffic, which comprises: the haze data acquisition unit is used for extracting road air and analyzing and processing the road air to obtain haze data; the haze detection unit is used for judging whether to send out a warning or not based on the ratio of the area of which the gray level is smaller than the gray level threshold value in the gray level image to the area of the whole gray level image; the positioning unit is used for extracting the position of the extracted road air to obtain position data; the alarm engine is used for receiving the detection result of the haze detection unit and collecting the position data and the time data to obtain alarm information; and sending the alarm information to an alarm unit; the invention replaces the traditional sensor detection method by acquiring the image and converting the gray level image for comparison, has high detection precision, avoids the direct contact between the sampling and the acquisition unit, and can further reduce the precision attenuation of the acquisition unit along with the time.
Description
Technical Field
The invention relates to the technical field of detection, in particular to an automatic haze weather detection warning system for road traffic.
Background
Mist is an aerosol composed of fine liquid droplets suspended in the atmosphere, and is a general term for solid particles or liquid droplet substances suspended in the atmosphere. The reason for fog dissipation is that fog drops evaporate due to the temperature rise of the underlying surface; secondly, the wind speed is increased, and the fog is blown away or lifted into clouds; and turbulent mixing, water vapor uploading, heat transferring and near formation droplet evaporation are carried out. Fog is one of the weather that has the greatest impact on human traffic activity. Because visibility is greatly reduced in the presence of fog, many vehicles such as airplanes cannot be used. The particles such as dust, sulfuric acid, nitric acid, organic hydrocarbon in the air also can make the atmosphere turbid, and the field of vision is fuzzy and leads to visibility to worsen, if horizontal visibility is less than 10000 meters, the visual range obstacle that leads to the fact the aerosol system that constitutes with this kind of non-aqueous component is called haze or grey haze, when grey haze weather appears, outdoor visibility is low, pollutes continuously, traffic jam, the accident is frequent. Haze is the general name for fog and haze. In the past, heavy fog weather or haze weather mostly occurs in corresponding months of autumn, winter and spring, and the traffic and the health of people are seriously influenced. Along with the increasing severity of air pollution, the haze weather is not seasonal, and is influenced by severe haze weather at any time, so that people are healthy, particularly great inconvenience is brought to trips, the construction of expressways in China tends to be perfect, each main city line is popularized to the expressways, the severe haze weather enables the expressways to form the same nominal amount, even blocks the expressways, troubles and delays are brought to the trips, and great direct or indirect economic losses are brought. The same airport flight also brings harm and serious benefit loss to the nation and the people because haze weather cancels or delays the flight;
the mode that adopts sensor contact air among the prior art detects haze concentration, but because the haze content of sensor contact is lower, it is difficult to obtain accurate testing result.
Disclosure of Invention
The invention provides an automatic haze weather detection and warning system for road traffic, which solves the technical problems in the related art.
According to one aspect of the invention, an automatic detection and warning system for haze weather for road traffic is provided, which comprises:
the haze data acquisition unit is used for extracting road air and analyzing and processing the road air to obtain haze data;
the method for analyzing, processing and obtaining the haze data by the haze data acquisition unit comprises the following steps:
compressing the extracted road air, irradiating the compressed road air by a light source, arranging an image acquisition unit on a light source path, and acquiring an illumination image by the image acquisition unit;
then converting the illumination image into a gray image, calculating the area of a region of which the gray level is smaller than a gray level threshold value in the gray image, and finally calculating the ratio of the area of the region of which the gray level is smaller than the gray level threshold value in the gray image to the area of the whole gray image;
the haze detection unit is used for judging whether to send out a warning or not based on the ratio of the area of which the gray level is smaller than the gray level threshold value in the gray level image to the area of the whole gray level image;
sending out a warning when the ratio of the area of the gray level image with the gray level smaller than the gray level threshold value to the area of the whole gray level image is larger than a first ratio threshold value, or not sending out the warning;
the positioning unit is used for extracting the position of the extracted road air to obtain position data;
the time unit is used for extracting the time for extracting the road air to obtain time data;
the alarm engine is used for receiving the detection result of the haze detection unit and collecting the position data and the time data to obtain alarm information; and sending the alarm information to an alarm unit;
and the alarm unit comprises an information display unit for displaying alarm information.
Further, the haze detection unit judges the haze level according to the ratio of the area of the region with the gray level smaller than the gray level threshold value in the gray level image to the area of the whole gray level image;
comparing the first ratio threshold value, the second ratio threshold value and the third ratio threshold value through the ratio of the area of the gray level image with the gray level smaller than the gray level threshold value to the area of the whole gray level image, wherein the ratio of the area of the gray level image with the gray level smaller than the gray level threshold value to the area of the whole gray level image is smaller than or equal to the first ratio threshold value, and identifying the haze level as a zero level;
identifying the haze level as one level if the ratio of the area of the gray level image with the gray level smaller than the gray level threshold value to the area of the whole gray level image is greater than a first ratio threshold value and less than or equal to a second ratio threshold value;
if the ratio of the area with the gray level smaller than the gray level threshold value in the gray level image to the area of the whole gray level image is greater than a second ratio threshold value and less than or equal to a third ratio threshold value, identifying the haze level as a second level;
and if the ratio of the area with the gray level smaller than the gray level threshold value in the gray level image to the area of the whole gray level image is larger than a third ratio threshold value, identifying that the haze level is three-level.
Further, the haze data acquisition unit comprises an image conversion unit for converting the illumination image into a gray image and a gray ratio calculation unit for calculating the ratio of the area of a region with the gray level smaller than a gray threshold value in the gray image to the area of the whole gray image.
Furthermore, the automatic haze weather detection and warning system for road traffic further comprises a transceiver module, and the transceiver module sends alarm information to receiving equipment through a wired network and/or a wireless network.
Furthermore, the haze data acquisition unit compresses the air, so that the obtained illumination image is more uniform, and the problem that the result of influencing the light path is different due to uneven distribution of the micro-dust particles and the like, and the detection error is caused is avoided.
According to one aspect of the invention, an automatic detection and warning device for haze weather for road traffic is provided, which comprises:
the air supply system is used for extracting road air, compressing the road air and supplying the compressed road air to the detection system;
the air-conditioning cylinder at least comprises a cylinder body for containing air, wherein a cylindrical cavity is arranged in the cylinder body, the cross sections of all parts of the cylindrical cavity are the same, two pistons are arranged in the cylindrical space of the cylinder body, the two pistons are respectively connected with a piston rod, and the piston rods of the two pistons respectively extend out of the upper end and the lower end of the cylinder body;
the air supply system further comprises a first driving unit for driving the two pistons to move in the cylindrical cavity, the first driving unit comprises a crank set and a transmission set, the crank set comprises a first shaft, a second shaft, a third shaft, a fourth shaft, a fifth shaft, a sixth shaft and a seventh shaft, the second shaft is connected with the first shaft through a first shaft plate, the second shaft is connected with the third shaft through a second shaft plate, the third shaft is connected with the fourth shaft through a third shaft plate, the fourth shaft is connected with the fifth shaft through a fourth shaft plate, the fifth shaft is connected with the sixth shaft through a fifth shaft plate, and the sixth shaft is connected with the seventh shaft through a sixth shaft plate; the first shaft plate is fixedly connected with the first shaft and the second shaft, the second shaft plate is fixedly connected with the second shaft and the third shaft, the third shaft plate is fixedly connected with the third shaft and the fourth shaft, the fourth shaft plate is fixedly connected with the fourth shaft and the fifth shaft, the fifth shaft plate is fixedly connected with the fifth shaft and the sixth shaft, and the sixth shaft plate is fixedly connected with the sixth shaft and the seventh shaft;
the first shaft, the third shaft, the fifth shaft and the seventh shaft are all rotatably arranged on the transmission seat, the first shaft, the third shaft, the fifth shaft and the seventh shaft are coaxially arranged, the second shaft and the sixth shaft are coaxially arranged, the axes of the first shaft, the second shaft, the third shaft, the fourth shaft, the fifth shaft, the sixth shaft and the seventh shaft are positioned on the same horizontal plane, and the axis of the fourth shaft and the axis of the second shaft are symmetrically arranged on two sides of the axis of the third shaft;
the transmission set comprises a rotating seat connected with a piston rod close to the crank set and a transmission rod connected with a piston rod far away from the crank set, wherein the rotating seat is rotationally connected with a fourth shaft, and the two transmission rods are rotationally connected with a second shaft and a sixth shaft respectively;
the first shaft and/or the seventh shaft are/is connected with the output end of the first rotary driving unit; the first rotary driving unit drives the first shaft and/or the seventh shaft to rotate, the axis of the fourth shaft and the axis of the second shaft are symmetrically arranged on two sides of the axis of the third shaft, so that the fourth shaft, the second shaft and the sixth shaft do rotary motion by taking the first shaft as a center, when the fourth shaft rises to a high position, the second shaft and the sixth shaft are at a low position, namely when the fourth shaft pushes the lower piston to move to the high position through the piston rod, the second shaft and the sixth shaft push the upper piston to move downwards to the low position, after the fourth shaft rotates for a circle, the fourth shaft pushes the lower piston to move downwards to the low position through the piston rod, and the second shaft and the sixth shaft push the upper piston to move upwards to the high position; when the pistons move oppositely, air between the two pistons is extruded, and the air is discharged to a detection system from an air outlet of the cylinder body;
when the pistons move in opposite directions, a negative pressure is created in the space between the two pistons, drawing air in from the intake port of the cylinder.
The detection system is used for irradiating compressed road air through a light source, an image acquisition unit is arranged on a light source path, and an illumination image is acquired through the image acquisition unit; the air-conditioning device comprises a container for containing air, wherein the container comprises an air inlet connected with an air outlet of a cylinder body and an air outlet for exhausting air, one surface of the container is provided with a light source, and the other surface corresponding to the light source is provided with an image acquisition unit.
Furthermore, valves are arranged on the air inlet and the air outlet, and the valves are one-way valves or electromagnetic valves.
Furthermore, the upper ends of the two transmission rods are rotatably connected with a connecting rod, the connecting rod is fixedly connected with a piston rod, the upper end of the connecting rod is fixedly connected with a guide rod, and the guide rod is in sliding connection with a sliding sleeve on the base.
Further, the gas supply system further comprises a base for supporting the cylinder and the first driving unit.
The invention has the beneficial effects that:
the invention replaces the traditional sensor detection method by acquiring the image and converting the gray level image for comparison, has high detection precision, avoids the direct contact between the sampling and the acquisition unit, and can further reduce the precision attenuation of the acquisition unit along with the time.
The invention samples in a way of collecting and compressing road air, can greatly improve the sampling amount and avoid detection result errors caused by less sampling amount.
Drawings
FIG. 1 is a schematic block structure diagram of an automatic haze weather detection warning system for road traffic according to an embodiment of the present invention;
FIG. 2 is a schematic block structure diagram of a haze data acquisition unit according to an embodiment of the present invention;
FIG. 3 is a front view of the automatic haze weather detection and warning device for road traffic according to the embodiment of the invention;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
FIG. 5 is a side view of the automatic haze weather detection warning device for road traffic in an embodiment of the present invention;
fig. 6 is a schematic view of a crank set of the automatic haze weather detection warning device for road traffic according to the embodiment of the invention.
In the figure: the haze detection device comprises a haze data acquisition unit 100, a haze detection unit 200, a positioning unit 300, a time unit 400, an alarm engine 500, an alarm unit 600, an air supply system 110, a detection system 120, a cylinder 111, a piston 112, a piston rod 113, a first shaft 114, a second shaft 115, a third shaft 116, a fourth shaft 117, a fifth shaft 118, a sixth shaft 119, a seventh shaft 1101, a first shaft plate 1102, a second shaft plate 1103, a third shaft plate 1104, a fourth shaft plate 1105, a fifth shaft plate 1106, a sixth shaft plate 1107, a rotating seat 1108, a transmission rod 1109, a first air inlet 1110, a first air outlet 1111 and a connection rod 1112; an image acquisition unit 121, an image conversion unit 122, a gray scale ratio calculation unit 123 and a container 124.
Detailed Description
The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thereby implement the subject matter described herein, and are not intended to limit the scope, applicability, or examples set forth in the claims. Changes may be made in the function and arrangement of elements discussed without departing from the scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as needed. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, features described with respect to some examples may also be combined in other examples.
In this embodiment, an automatic detection and warning system for haze weather for road traffic is provided, as shown in fig. 1, an automatic detection and warning system for haze weather for road traffic according to the present invention is shown in fig. 1-2, and the automatic detection and warning system for haze weather for road traffic includes:
the haze data acquisition unit 100 is used for extracting road air and analyzing and processing the road air to obtain haze data;
the method for analyzing, processing and obtaining the haze data by the haze data acquisition unit 100 comprises the following steps:
compressing the extracted road air, irradiating the compressed road air by a light source, arranging an image acquisition unit 121 on a light source path, and acquiring an illumination image by the image acquisition unit 121;
then converting the illumination image into a gray image, calculating the area of a region of which the gray level is smaller than a gray level threshold value in the gray image, and finally calculating the ratio of the area of the region of which the gray level is smaller than the gray level threshold value in the gray image to the area of the whole gray image;
the haze detection unit 200 is used for judging whether to send out a warning or not based on the ratio of the area of which the gray level is smaller than the gray level threshold value in the gray level image to the area of the whole gray level image;
sending out a warning when the ratio of the area of the gray level image with the gray level smaller than the gray level threshold value to the area of the whole gray level image is larger than a first ratio threshold value, or not sending out the warning;
a positioning unit 300 for extracting a position where road air is extracted, to obtain position data;
a time unit 400 for extracting the time for extracting the road air, obtaining time data;
the alarm engine 500 is used for receiving the detection result of the haze detection unit 200 and collecting position data and time data to obtain alarm information; and sends the alarm information to the alarm unit 600;
an alarm unit 600 including an information display unit for displaying alarm information.
The haze detection unit 200 judges the haze level according to the ratio of the area of the region with the gray level smaller than the gray level threshold value in the gray level image to the area of the whole gray level image;
comparing the first ratio threshold value, the second ratio threshold value and the third ratio threshold value through the ratio of the area of the gray level image with the gray level smaller than the gray level threshold value to the area of the whole gray level image, wherein the ratio of the area of the gray level image with the gray level smaller than the gray level threshold value to the area of the whole gray level image is smaller than or equal to the first ratio threshold value, and identifying the haze level as a zero level;
identifying the haze level as one level if the ratio of the area of the gray level image with the gray level smaller than the gray level threshold value to the area of the whole gray level image is greater than a first ratio threshold value and less than or equal to a second ratio threshold value;
if the ratio of the area with the gray level smaller than the gray level threshold value in the gray level image to the area of the whole gray level image is greater than a second ratio threshold value and less than or equal to a third ratio threshold value, identifying the haze level as a second level;
if the ratio of the area with the gray level smaller than the gray level threshold value in the gray level image to the area of the whole gray level image is larger than a third ratio threshold value, identifying that the haze level is three-level;
in the present embodiment, the haze data acquisition unit 100 includes an image conversion unit 122 for converting the illumination image into a grayscale image, and a grayscale ratio calculation unit 123 for calculating a ratio of an area of a region in the grayscale image, where the grayscale is smaller than a grayscale threshold, to an area of the entire grayscale image;
the automatic haze weather detection and warning system for road traffic further comprises a transceiver module, and the transceiver module sends alarm information to receiving equipment through a wired network and/or a wireless network.
The receiving device may be a mobile device such as a mobile phone or a fixed device such as a display screen.
The automatic haze weather detection and warning system for road traffic in the embodiment judges the haze level based on an image recognition method, and avoids errors caused by too few detection samples such as sensors.
In order to assist the image recognition method, the haze data acquisition unit 100 in the system compresses air, so that the obtained illumination image is more uniform, and detection errors caused by different results influencing light paths due to uneven distribution of particles such as dust particles are avoided.
As shown in fig. 3-6, to the above-mentioned haze weather automated inspection warning system for road traffic, this embodiment further provides a haze weather automated inspection warning device for road traffic, includes:
an air supply system 110 for extracting road air and compressing it to supply to the detection system 120;
the air-conditioning device at least comprises a cylinder body 111 for containing air, wherein a cylindrical cavity is arranged in the cylinder body 111, the cross sections of all parts of the cylindrical cavity are the same, two pistons 112 are arranged in the cylindrical space of the cylinder body 111, the two pistons 112 are respectively connected with a piston rod 113, and the piston rods 113 of the two pistons 112 respectively extend out of the upper end and the lower end of the cylinder body 111;
the gas supply system 110 further comprises a first driving unit for driving the two pistons 112 to move in the cylindrical cavity, the first driving unit comprises a crank set and a transmission set, wherein the crank set comprises a first shaft 114, a second shaft 115, a third shaft 116, a fourth shaft 117, a fifth shaft 118, a sixth shaft 119 and a seventh shaft 1101, the second shaft 115 is connected with the first shaft 114 through a first shaft plate 1102, the second shaft 115 is connected with the third shaft 116 through a second shaft plate 1103, the third shaft 116 is connected with the fourth shaft 117 through a third shaft plate 1104, the fourth shaft 117 is connected with the fifth shaft 118 through a fourth shaft plate 1105, the fifth shaft 118 is connected with the sixth shaft 119 through a fifth shaft plate 1106, and the sixth shaft 119 is connected with the seventh shaft 1101 through a sixth shaft plate 1107; the first shaft plate 1102 is fixedly connected with the first shaft 114 and the second shaft 115, the second shaft plate 1103 is fixedly connected with the second shaft 115 and the third shaft 116, the third shaft plate 1104 is fixedly connected with the third shaft 116 and the fourth shaft 117, the fourth shaft plate 1105 is fixedly connected with the fourth shaft 117 and the fifth shaft 118, the fifth shaft plate 1106 is fixedly connected with the fifth shaft 118 and the sixth shaft 119, and the sixth shaft 1107 is fixedly connected with the sixth shaft 119 and the seventh shaft 1101;
the first shaft 114, the third shaft 116, the fifth shaft 118 and the seventh shaft 1101 are rotatably arranged on the transmission seat, the first shaft 114, the third shaft 116, the fifth shaft 118 and the seventh shaft 1101 are coaxially arranged, the second shaft 115 and the sixth shaft 119 are coaxially arranged, the axes of the first shaft 114, the second shaft 115, the third shaft 116, the fourth shaft 117, the fifth shaft 118, the sixth shaft 119 and the seventh shaft 1101 are positioned on the same horizontal plane, and the axis of the fourth shaft 117 and the axis of the second shaft 115 are symmetrically arranged on two sides of the axis of the third shaft 116;
the transmission set comprises a rotating seat 1108 connected with the piston rod 113 close to the crank set and a transmission rod 1109 connected with the piston rod 113 far away from the crank set, wherein the rotating seat 1108 is rotatably connected with the fourth shaft 117, and the two transmission rods 1109 are respectively rotatably connected with the second shaft 115 and the sixth shaft 119;
the first shaft 114 and/or the seventh shaft 1101 is connected to the output of the first rotary drive unit; the first rotary driving unit drives the first shaft 114 and/or the seventh shaft 1101 to rotate, because the axis of the fourth shaft 117 and the axis of the second shaft 115 are symmetrically arranged at two sides of the axis of the third shaft 116, the fourth shaft 117, the second shaft 115 and the sixth shaft 119 rotate around the first shaft 114, when the fourth shaft 117 rises to the high position, the second shaft 115 and the sixth shaft 119 are in the low position, that is, when the fourth shaft 117 pushes the lower piston 112 to move up to the high position through the piston rod 113, the second shaft 115 and the sixth shaft 119 push the upper piston 112 to move down to the low position, after one rotation, the fourth shaft 117 pushes the lower piston 112 to move down to the low position through the piston rod 113, and the second shaft 115 and the sixth shaft 119 push the upper piston 112 to move up to the high position; so as to achieve the effect of reciprocating the two pistons 112, when the pistons 112 move in opposite directions, the air between the two pistons 112 is squeezed, and the air is discharged from the first air outlet 1111 of the cylinder 111 to the detection system 120;
when the pistons 112 move in the opposite directions, negative pressure is formed in the space between the two pistons 112, drawing air in from the first intake port 1110 of the cylinder 111;
in this embodiment, the first air inlet 1110 and the first air outlet 1111 are both provided with a valve, which may be a one-way valve, a solenoid valve, etc., if the valve is a control valve such as a solenoid valve, the valve of the first air outlet 1111 is closed during air inlet, otherwise, the valve of the first air inlet 1110 is closed.
In the present embodiment, the upper ends of the two transmission rods 1109 are rotatably connected with the connecting rod 1112, and the connecting rod 1112 is fixedly connected with the piston rod 113. Further, the upper end of the connecting rod 1112 is fixedly connected with a guide rod, and the guide rod is connected with a sliding sleeve on the base in a sliding manner.
In the present embodiment, the air supply system 110 further includes a base for supporting the cylinder 111 and the first driving unit.
The detection system 120 is used for irradiating compressed road air through a light source, an image acquisition unit 121 is arranged on a light source path, and an illumination image is acquired through the image acquisition unit 121; it includes a container 124 for containing air, the container 124 includes a second air inlet connected to the first air outlet 1111 of the cylinder 111 and a second air outlet for exhausting air, a light source is provided at one side of the container 124, and an image pickup unit 121 is provided corresponding to the other side of the light source.
In the present embodiment, the image capturing unit 121 may be selected from, but is not limited to: camera, image sensor.
The light source can be a lamp bead, a lamp strip, a lamp panel or any combination thereof.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present embodiment or portions thereof contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (e.g. a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method of the embodiments.
In the description of the present invention, it is to be understood that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
The embodiments of the present invention have been described with reference to the drawings, but the present invention is not limited to the above-mentioned specific embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention and the protection scope of the claims.
Claims (10)
1. The utility model provides a haze weather automated inspection warning system for road traffic, its characterized in that includes:
the haze data acquisition unit is used for extracting road air and analyzing and processing the road air to obtain haze data;
the method for analyzing, processing and obtaining the haze data by the haze data acquisition unit comprises the following steps:
compressing the extracted road air, irradiating the compressed road air by a light source, arranging an image acquisition unit on a light source path, and acquiring an illumination image by the image acquisition unit;
then converting the illumination image into a gray image, calculating the area of a region of which the gray level is smaller than a gray level threshold value in the gray image, and finally calculating the ratio of the area of the region of which the gray level is smaller than the gray level threshold value in the gray image to the area of the whole gray image;
the haze detection unit is used for judging whether to send out a warning or not based on the ratio of the area of which the gray level is smaller than the gray level threshold value in the gray level image to the area of the whole gray level image;
sending out a warning when the ratio of the area of the gray level image with the gray level smaller than the gray level threshold value to the area of the whole gray level image is larger than a first ratio threshold value, or not sending out the warning;
the positioning unit is used for extracting the position of the extracted road air to obtain position data;
the time unit is used for extracting the time for extracting the road air to obtain time data;
the alarm engine is used for receiving the detection result of the haze detection unit and collecting the position data and the time data to obtain alarm information; and sending the alarm information to an alarm unit;
and the alarm unit comprises an information display unit for displaying alarm information.
2. The automatic haze weather detection and warning system for road traffic as claimed in claim 1, wherein the haze detection unit determines the haze level according to a ratio of an area of the gray scale image with a gray scale smaller than a gray scale threshold value to an area of the whole gray scale image;
comparing the first ratio threshold value, the second ratio threshold value and the third ratio threshold value through the ratio of the area of the gray level image with the gray level smaller than the gray level threshold value to the area of the whole gray level image, wherein the ratio of the area of the gray level image with the gray level smaller than the gray level threshold value to the area of the whole gray level image is smaller than or equal to the first ratio threshold value, and identifying the haze level as a zero level;
identifying the haze level as one level if the ratio of the area of the gray level image with the gray level smaller than the gray level threshold value to the area of the whole gray level image is greater than a first ratio threshold value and less than or equal to a second ratio threshold value;
if the ratio of the area with the gray level smaller than the gray level threshold value in the gray level image to the area of the whole gray level image is greater than a second ratio threshold value and less than or equal to a third ratio threshold value, identifying the haze level as a second level;
and if the ratio of the area with the gray level smaller than the gray level threshold value in the gray level image to the area of the whole gray level image is larger than a third ratio threshold value, identifying that the haze level is three-level.
3. The system for automatically detecting and warning haze weather for road traffic as claimed in claim 1, wherein the haze data acquisition unit comprises an image conversion unit for converting an illumination image into a gray image and a gray ratio calculation unit for calculating a ratio of an area with a gray level smaller than a gray threshold value in the gray image to an area of the whole gray image.
4. The automatic haze weather detection and warning system for road traffic as claimed in claim 1, wherein the automatic haze weather detection and warning system for road traffic further comprises a transceiver module, and the transceiver module sends alarm information to a receiving device through a wired network and/or a wireless network.
5. The automatic haze weather detection and warning system for road traffic as claimed in claim 1, wherein the haze data acquisition unit compresses air, so that the obtained illumination image is more uniform, and detection errors caused by different results affecting light paths due to uneven distribution of micro dust particles and the like are avoided.
6. The utility model provides a haze weather automated inspection warning device for road traffic, its characterized in that includes:
the air supply system is used for extracting road air, compressing the road air and supplying the compressed road air to the detection system;
the air-conditioning cylinder at least comprises a cylinder body for containing air, wherein a cylindrical cavity is arranged in the cylinder body, the cross sections of all parts of the cylindrical cavity are the same, two pistons are arranged in the cylindrical space of the cylinder body, the two pistons are respectively connected with a piston rod, and the piston rods of the two pistons respectively extend out of the upper end and the lower end of the cylinder body;
the air supply system further comprises a first driving unit for driving the two pistons to move in the cylindrical cavity, the first driving unit comprises a crank set and a transmission set, the crank set comprises a first shaft, a second shaft, a third shaft, a fourth shaft, a fifth shaft, a sixth shaft and a seventh shaft, the second shaft is connected with the first shaft through a first shaft plate, the second shaft is connected with the third shaft through a second shaft plate, the third shaft is connected with the fourth shaft through a third shaft plate, the fourth shaft is connected with the fifth shaft through a fourth shaft plate, the fifth shaft is connected with the sixth shaft through a fifth shaft plate, and the sixth shaft is connected with the seventh shaft through a sixth shaft plate; the first shaft plate is fixedly connected with the first shaft and the second shaft, the second shaft plate is fixedly connected with the second shaft and the third shaft, the third shaft plate is fixedly connected with the third shaft and the fourth shaft, the fourth shaft plate is fixedly connected with the fourth shaft and the fifth shaft, the fifth shaft plate is fixedly connected with the fifth shaft and the sixth shaft, and the sixth shaft plate is fixedly connected with the sixth shaft and the seventh shaft;
the first shaft, the third shaft, the fifth shaft and the seventh shaft are all rotatably arranged on the transmission seat, the first shaft, the third shaft, the fifth shaft and the seventh shaft are coaxially arranged, the second shaft and the sixth shaft are coaxially arranged, the axes of the first shaft, the second shaft, the third shaft, the fourth shaft, the fifth shaft, the sixth shaft and the seventh shaft are positioned on the same horizontal plane, and the axis of the fourth shaft and the axis of the second shaft are symmetrically arranged on two sides of the axis of the third shaft;
the transmission set comprises a rotating seat connected with a piston rod close to the crank set and a transmission rod connected with a piston rod far away from the crank set, wherein the rotating seat is rotationally connected with a fourth shaft, and the two transmission rods are rotationally connected with a second shaft and a sixth shaft respectively;
the first shaft and/or the seventh shaft are/is connected with the output end of the first rotary driving unit; the first rotary driving unit drives the first shaft and/or the seventh shaft to rotate, the axis of the fourth shaft and the axis of the second shaft are symmetrically arranged on two sides of the axis of the third shaft, so that the fourth shaft, the second shaft and the sixth shaft do rotary motion by taking the first shaft as a center, when the fourth shaft rises to a high position, the second shaft and the sixth shaft are at a low position, namely when the fourth shaft pushes the lower piston to move to the high position through the piston rod, the second shaft and the sixth shaft push the upper piston to move downwards to the low position, after the fourth shaft rotates for a circle, the fourth shaft pushes the lower piston to move downwards to the low position through the piston rod, and the second shaft and the sixth shaft push the upper piston to move upwards to the high position; when the pistons move oppositely, air between the two pistons is extruded, and the air is discharged to a detection system from an air outlet of the cylinder body;
when the pistons move in opposite directions, a negative pressure is created in the space between the two pistons, drawing air in from the intake port of the cylinder.
The detection system is used for irradiating compressed road air through a light source, an image acquisition unit is arranged on a light source path, and an illumination image is acquired through the image acquisition unit; the air-conditioning device comprises a container for containing air, wherein the container comprises an air inlet connected with an air outlet of a cylinder body and an air outlet for exhausting air, one surface of the container is provided with a light source, and the other surface corresponding to the light source is provided with an image acquisition unit.
7. The automatic haze weather detection and warning system for road traffic as claimed in claim 6, wherein valves are arranged on the air inlet and the air outlet, and the valves are one-way valves or electromagnetic valves.
8. The automatic haze weather detection and warning system for road traffic as claimed in claim 6, wherein the upper ends of the two transmission rods are rotatably connected with the connecting rod, the connecting rod is fixedly connected with the piston rod, the upper end of the connecting rod is fixedly connected with the guide rod, and the guide rod is slidably connected with the sliding sleeve on the base.
9. The automatic haze weather detection and warning system for road traffic as claimed in claim 6, wherein the air supply system further comprises a base for supporting the cylinder and the first driving unit.
10. The system for automatically detecting and warning haze weather for road traffic as claimed in claim 6, wherein the image acquisition unit is a camera or an image sensor.
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