Highway agglomerate fog disposal system and method

Abstract

The invention provides an expressway agglomerate fog disposal system and method, and relates to the technical field of expressway safety protection, the system comprises a plurality of monitoring devices, at least one disposal device and a control device; the treatment device comprises two partition plates arranged oppositely and exhaust fans installed on the partition plates. The plurality of monitoring devices are distributed along the highway and are used for acquiring monitoring data in real time; and the control device is used for analyzing the monitoring data, obtaining the concentration, the agglomerate fog coverage range and the visibility level of the agglomerate fog on the expressway, and controlling the disposal device to move to a target position according to the concentration, the agglomerate fog coverage range and the visibility level of the agglomerate fog on the expressway so as to carry out agglomerate fog disposal. According to the invention, agglomerate fog can be effectively isolated and dissipated, and traffic safety pre-control measures such as visual sense and auditory sense are provided for driving vehicles, so that the driving safety is guaranteed to the greatest extent.

Description

Technical Field

[0001] The present invention relates to the technical field of highway safety protection, and in particular to a highway fog disposal system and method. Background Art

[0002] Fog is a kind of local fog with high concentration and low visibility. It will suddenly form under certain conditions and affect the visibility of a certain area. Fog often appears in some areas of expressways, especially in mountainous areas with high humidity, river valleys and seasonal fog-prone areas. It has become one of the main factors affecting the safety of expressway driving, which can easily cause chain rear-end collisions and seriously threaten driving safety.

[0003] At present, the methods for preventing and controlling fog on highways are mainly divided into two categories: passive warning and active intervention. Passive warning methods usually rely on visibility monitoring equipment and information display screens deployed on sections of roads with frequent fog to provide drivers with real-time visibility and speed limit recommendations. Active intervention methods attempt to dissipate fog through physical means, such as installing sprays, exhaust fans or hot air mist blowing equipment in fixed or semi-fixed positions. However, these methods all have certain limitations. First, the location and scope of fog are usually unpredictable, and it is difficult to achieve full coverage through fixed equipment. Secondly, existing active fog dissipation systems can usually only cover a limited area and do not have the ability to adjust the location and scope of facilities according to the actual distribution of fog. In addition, many anti-fog devices have high energy consumption, and there are problems of high cost and difficult maintenance when applied on a large scale. Summary of the invention

[0004] The purpose of the present invention is to provide a highway fog disposal system and method, which is used to solve the problems of poor effect, high cost and difficult maintenance of the existing highway fog disposal methods. It can effectively isolate and dissipate fog, facilitate maintenance, ensure driving safety and reduce accident risks.

[0005] In order to achieve the above-mentioned object, in a first aspect, the present invention provides a highway fog disposal system, comprising a plurality of monitoring devices, at least one disposal device and a control device; The treatment device includes two partitions arranged opposite to each other and an exhaust fan installed on the partitions; a plurality of monitoring devices are distributed along the expressway for obtaining monitoring data in real time; the control device is used to analyze the monitoring data, obtain the concentration of fog on the expressway, the coverage of fog and the visibility level, and control the treatment device to move to the target position according to the concentration of fog on the expressway, the coverage of fog and the visibility level, so as to treat the fog.

[0006] According to a highway fog disposal system provided by the present invention, the length of the partition along the highway direction is adjustable, and the control device is also used to adjust the length of the partition along the highway direction according to the coverage of the fog on the highway.

[0007] According to a highway fog disposal system provided by the present invention, the partition includes a plurality of plate bodies, and the control device adjusts the length of the partition along the highway direction by controlling the overlap degree between the plurality of plate bodies.

[0008] According to a highway fog disposal system provided by the present invention, the disposal device also includes a lighting projection lamp arranged on the partition, and the control device is also used to adjust the light brightness and color of the lighting projection lamp according to the concentration and visibility level of the fog on the highway, and control the lighting projection lamp to project prompt information.

[0009] According to a highway fog disposal system provided by the present invention, the disposal device also includes a voice prompt module, and the control device is also used to control the voice prompt module to issue a voice prompt when a vehicle enters the fog coverage area.

[0010] According to a highway fog disposal system provided by the present invention, the monitoring device includes a laser radar, an optical sensor, an environmental parameter sensor and an image sensor; the laser radar is used to preliminarily measure visibility and obtain the droplet particle size distribution; the optical sensor is used to measure the atmospheric extinction coefficient; the environmental parameter sensors include temperature, humidity, air pressure, wind speed and wind direction sensors, which are used to measure temperature, humidity, air pressure, wind speed and wind direction respectively; the image sensor is used to obtain images of the highway. A highway fog disposal system provided according to the present invention also includes a preprocessing module, which is used to clean, filter and aggregate monitoring data, and apply a time synchronization algorithm to time align the monitoring data to filter out abnormal values.

[0011] According to a highway fog disposal system provided by the present invention, there are multiple disposal devices, and the control device is also used to evaluate the severity of the fog based on a preset threshold classification model, and when the severity of the fog reaches or exceeds a preset safety warning threshold, use a scheduling algorithm to control the nearest and idle disposal device to move to the target position.

[0012] According to a highway fog disposal system provided by the present invention, the control device is also used to control the speed of the exhaust fan according to the concentration of the fog on the highway. The speed of the exhaust fan is expressed as:

[0013] In the formula, V is the speed of the exhaust fan, C is the current concentration of the fog, and k is the adjustment coefficient. The minimum fan speed.

[0014] In a second aspect, the present invention provides a method for handling highway fog, which is applied to the highway fog handling system of the first aspect, and the method comprises: Obtain monitoring data in real time; Analyze monitoring data to obtain the concentration, coverage and visibility level of fog on the highway; control the disposal device to move to the target position to carry out fog disposal according to the concentration, coverage and visibility level of fog on the highway.

[0015] The technical solution of the present invention has at least the following technical effects: The present invention provides a highway fog disposal system and method, the system includes multiple monitoring devices, at least one disposal device and a control device; the disposal device includes two partitions arranged opposite to each other and an exhaust fan installed on the partition; multiple monitoring devices are distributed along the highway for real-time acquisition of monitoring data; the control device is used to analyze the monitoring data, obtain the concentration, coverage and visibility level of fog on the highway, and control the disposal device to move to a target position according to the concentration, coverage and visibility level of fog on the highway, so as to carry out fog disposal. The present invention obtains monitoring data through the monitoring device, and the control device analyzes the monitoring data to obtain the concentration, coverage and visibility level of fog on the highway, and controls the disposal device to move to the target position to carry out fog disposal accordingly, which can effectively isolate and dissipate fog, and provide visual and auditory and other traffic safety pre-control measures for driving vehicles, thereby maximizing driving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] In the attached picture: Figure 1 It is a schematic diagram of the layout of the highway fog disposal system of the present invention on the highway; Figure 2 This is a real picture of the treatment device of the present invention when the plates are completely overlapped; Figure 3 This is a physical picture of the treatment device of the present invention after the plate body is fully unfolded and the agglomerate mist treatment is carried out; Figure 4 It is a structural block diagram of the highway fog disposal system of the present invention. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Some embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0020] See also Figure 1 and Figure 4 An embodiment of the present invention provides a highway fog disposal system, including multiple monitoring devices, at least one disposal device and a control device.

[0021] Multiple monitoring devices are distributed along the highway, each of which includes lidar, optical sensors, environmental parameter sensors, image sensors, etc. Each monitoring device is equipped with multiple sensors, which can realize multi-source data fusion and improve the accuracy and reliability of monitoring data. Through real-time collection of monitoring data by multiple sensors, the control device fuses the monitoring data collected by each sensor to accurately obtain the concentration, coverage and visibility level of fog clusters in real time.

[0022] Specifically, multiple monitoring devices are evenly distributed along the highway, and are deployed in sections prone to fog (such as low-lying areas and sections near rivers) (with smaller spacing between monitoring devices and more dense distribution). Of course, the spacing between monitoring devices is set according to actual needs, generally between a few hundred meters and a few kilometers.

[0023] Among them, the laser radar is used to preliminarily measure visibility and obtain information such as droplet size distribution, and then the control device calculates the concentration of the fog group. The optical sensor uses a forward scatterer or a backscatterer to measure the atmospheric extinction coefficient. The control device assists in judging the visibility level and the concentration of the fog group based on this, and can provide supplementary data to improve the measurement accuracy. Environmental parameter sensors include temperature, humidity, air pressure, wind speed and wind direction sensors, etc., which are used to measure environmental parameters such as temperature, humidity, air pressure, wind speed and wind direction respectively. These environmental parameters help the control device analyze the conditions and development trends of fog group formation and predict the persistence of fog group. The image sensor may include a camera to obtain images of the highway. The control device uses image recognition and processing technology to identify the fog group area, judge the shape and boundary of the fog group according to the image of the highway, and thus obtain the coverage of the fog group. Of course, the control device can also evaluate the traffic conditions based on the image of the highway. Such data can be used to assist in judging the severity of the fog group and assist the vehicle's navigation system in planning routes.

[0024] Specifically, the disposal device includes two partitions arranged opposite to each other and an exhaust fan installed on the partitions; the control device is used to control the disposal device to move to the target position according to the concentration, coverage and visibility level of the fog on the highway to carry out fog disposal.

[0025] Specifically, the length of the partition along the direction of the expressway is adjustable, and the control device is also used to adjust the length of the partition along the direction of the expressway according to the coverage of the fog on the expressway.

[0026] It should be noted that the length of the partition is adjustable and the height is moderate. The control device adjusts the length of the partition according to the coverage of the fog group. The two partitions are arranged opposite to each other, which can block the movement of the fog group between the target location sections and form a relatively closed area. The material of the partition is made of materials with strong weather resistance and good light transmittance, such as tempered glass, polycarbonate, etc., and the surface of the partition can be coated with an anti-fog coating. The exhaust fan is installed on the partition and can be distributed along the partition intervals. The fog between the two partitions is discharged to both sides of the highway through the exhaust operation.

[0027] Specifically, the control device is also used to control the speed of the exhaust fan according to the concentration of the fog on the highway. The speed of the exhaust fan is expressed as:

[0028] Where V is the speed of the exhaust fan, in revolutions per minute; C is the current concentration of fog; k is the adjustment coefficient, which is set according to the actual exhaust demand; The minimum fan speed ensures basic ventilation at low concentrations.

[0029] Since the speed of the exhaust fan needs to be dynamically adjusted according to the concentration of the fog, the exhaust fan type can be axial flow fan, centrifugal fan, etc., and a frequency converter can be configured to achieve precise control.

[0030] Specifically, the disposal device also includes a lighting projection lamp arranged on the partition, and the control device is also used to adjust the light brightness and color of the lighting projection lamp according to the concentration and visibility level of the fog on the highway, and control the lighting projection lamp to project prompt information. Optionally, the lighting projection lamp is an LED light source with excellent fog penetration performance, which provides lighting when fog occurs to improve visibility, and at the same time projects a yellow flashing prompt message on the road surface (such as "thick fog! Drive carefully"), thereby improving the visibility of the foggy section at the target location and the driver's safety risk awareness.

[0031] The disposal device also includes a voice prompt module, and the control device is also used to control the voice prompt module to issue a voice prompt when the vehicle enters the coverage area of ​​the fog. For example, the voice prompt module can be a horn, which issues a voice message of "please slow down and turn on the fog lights" to prompt the driver to slow down and turn on the lights, thereby improving the visibility and driving safety of the vehicle and reducing traffic accidents caused by fog.

[0032] like Figure 2 As shown, the partition includes a plurality of plate bodies, and the control device adjusts the length of the partition along the highway direction by controlling the overlapping degree between the plurality of plate bodies. Figure 2 Three completely overlapping plates are shown, each of which includes a vertical plate and a horizontal plate that are fixedly connected and perpendicular to each other, three rollers are installed at the bottom of the vertical plate, two exhaust fans are installed on the top of the vertical plate, and a lighting projection lamp and a voice prompt module are installed on the horizontal plate. Figure 3 Six fully deployed panels are shown.

[0033] In some embodiments, the highway fog disposal system also includes a preprocessing module, which is used to perform preliminary cleaning, filtering and aggregation of the monitoring data through an edge computing chip (such as an ARM chip in an intelligent collection node). At this stage, a time synchronization algorithm (such as the NTP protocol) is applied to time align the monitoring data of each sensor to filter out abnormal values.

[0034] Specifically, Figure 1 As shown, the monitoring device can transmit the monitoring data to the control device through a wired network or a high-reliability, low-latency wireless network (such as 5G, a dedicated highway transmission network). Since the treatment device needs to be mobile, it is connected to the control device through a wireless network. Figure 1 The figure shows the arrangement of six monitoring devices and three treatment devices on a highway that extends in all directions. Figure 1Only one of the monitoring devices is connected to the control device via a wired network or a wireless network, and one of the disposal devices is connected to the control device via a wireless network.

[0035] Specifically, the control device can be a data processing control center, and the number of disposal devices is multiple. After receiving the real-time monitoring data transmitted by the monitoring device, the control device will perform data fusion and in-depth analysis to determine the severity of the fog cluster, and use the scheduling algorithm to select the optimal disposal device and control it to move to the target location where the fog cluster occurs for disposal. The specific implementation process is as follows: 1. Data fusion and analysis Multi-sensor data fusion algorithms (such as Kalman filtering, weighted average method, etc.) are used to fuse the received monitoring data to generate information including the concentration of fog clusters, fog cluster coverage, visibility level, and other key feature information (such as the center position of the fog cluster, moving speed, droplet size distribution, etc.). The severity of the fog cluster is evaluated based on the preset threshold classification model and can be divided into three levels: mild, moderate, and severe.

[0036] 2. Intelligent scheduling and equipment resource allocation If the severity of the fog reaches or exceeds the preset safety warning threshold, the scheduling algorithm (such as path optimization based on the A* algorithm or dynamic programming algorithm) is used to control the nearest and idle disposal device to move to the target location based on the specific location, coverage, concentration, visibility level and other information of the fog.

[0037] 3. Issuance of defog command and response execution The control device sends a task instruction to the selected optimal disposal device, which contains the following information: Target location: The center coordinate location of the fog group.

[0038] The total length of the partition after the partition body is unfolded: it is set according to the spatial coverage of the fog group.

[0039] Exhaust fan speed setting: dynamically adjust the initial speed of the exhaust fan according to the concentration of the fog.

[0040] Display content of the lighting projection lamp: Contains prompt information with a yellow flashing logo.

[0041] Warning voice prompt: The voice prompt module broadcasts safety prompt content.

[0042] After receiving the task instructions, the disposal device moves accurately along the highway guardrail to the preset target position. In addition, during the movement, the position information of the disposal device will be continuously fed back to the control device to ensure that it reaches the designated area accurately.

[0043] When the disposal device reaches the target location, it will automatically unfold the partition according to the length set by the command. After the partition is unfolded, the two partitions will form a relatively closed space in the target location area to prevent the fog from moving further in the road section. Figure 3 .

[0044] After the partition is unfolded, the exhaust fan starts to exhaust air to both sides of the road to quickly clear the fog in the closed area. The speed of the exhaust fan is adjusted according to the concentration of the fog. When the partition is unfolded, the lighting projection lamp on it automatically lights up and projects a yellow flashing logo or slogan onto the ground. The logo or slogan is clearly visible on both sides of the ground lane to guide drivers to pass safely. The voice prompt module on the partition issues a voice warning to vehicles entering the fog coverage area, including: Driver deceleration reminder: remind the vehicle to slow down and adapt to the driving requirements in foggy areas.

[0045] Fog light on reminder: guides the driver to turn on the hazard lights and fog lights to improve driving safety.

[0046] Keep distance reminder: remind vehicles to keep a safe distance to prevent chain collisions.

[0047] 4. System reset and monitoring After the fog dissipates, the control device analyzes the monitoring data transmitted by the monitoring device, and when it is confirmed that the concentration, coverage and visibility level of the fog have returned to the preset safety threshold, the control and disposal device is reset. Specifically, it includes: Turn off the exhaust fan, lighting projection lamp projection, and voice prompt module: the exhaust fan gradually slows down until it stops running to save energy and ensure that the exhaust fan is in a low-loss standby state.

[0048] Retracting the plate body of the partition: the control device issues a command to retract the plate body, and the plate body is gradually retracted to the initial position (the plate body is completely overlapped) to release road traffic space.

[0049] Disposal device reset: The disposal device automatically returns to the preset standby position so that it can respond quickly when the next fog group occurs.

[0050] Continuous monitoring: The monitoring device continues to collect monitoring data from the highway, and the control device analyzes the real-time monitoring data to ensure that a response can be initiated immediately in the event of any new fog.

[0051] Another embodiment of the present invention provides a method for handling highway fog, which is applied to the highway fog handling system of the above embodiment, and the method includes: Obtain monitoring data in real time; Analyze monitoring data to obtain the concentration, coverage and visibility level of fog on the highway; control the disposal device to move to the target position to carry out fog disposal according to the concentration, coverage and visibility level of fog on the highway.

[0052] In summary, the highway fog disposal system and method provided by the present invention obtains monitoring data through a monitoring device, and a control device analyzes the monitoring data to obtain the concentration, coverage and visibility level of fog on the highway, and controls the disposal device to move to the target position to dispose of the fog accordingly. Through the coordinated work of the monitoring device, the control device and the disposal device, the effective reduction of fog is achieved. It has the following advantages: 1. Dynamic fog elimination and precise control By flexibly adjusting the length of the partition to adapt to different fog coverage ranges, and coordinating with the precise speed regulation of the exhaust fan, the fog area can be effectively closed and the diffusion of fog can be accelerated, significantly improving the defogging efficiency.

[0053] 2. Safety warning function In the foggy area, a yellow flashing sign is projected by a lighting projection lamp, and the voice prompt module outputs a voice prompt to remind the driver to slow down and turn on the lights in real time, thereby improving the visibility and driving safety of the vehicle and reducing traffic accidents caused by foggy areas.

[0054] 3. Energy saving and high efficiency The speed of the exhaust fan and the length of the partition can be adjusted in real time according to the concentration and distribution of the fog, avoiding waste of resources, making the system run more efficiently and saving energy, and meeting the needs of sustainable development.

[0055] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the embodiments disclosed herein. The present invention is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not disclosed by the present invention. It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A highway fog disposal system, characterized in that: It includes a plurality of monitoring devices, at least one treatment device and a control device; The treatment device comprises two partitions arranged opposite to each other and an exhaust fan installed on the partitions; Multiple monitoring devices are distributed along the expressway for acquiring monitoring data in real time; the control device is used to analyze the monitoring data, acquire the concentration, coverage and visibility level of fog on the expressway, and control the disposal device to move to a target position for fog disposal according to the concentration, coverage and visibility level of fog on the expressway.

2. The highway fog disposal system according to claim 1, characterized in that: The length of the partition along the direction of the expressway is adjustable, and the control device is also used to adjust the length of the partition along the direction of the expressway according to the coverage of the fog on the expressway.

3. The highway fog disposal system according to claim 2, characterized in that: The partition includes a plurality of plate bodies, and the control device adjusts the length of the partition along the highway direction by controlling the overlapping degree between the plurality of plate bodies.

4. The highway fog disposal system according to claim 1, characterized in that: The disposal device also includes a lighting projection lamp arranged on the partition, and the control device is also used to adjust the light brightness and color of the lighting projection lamp according to the concentration and visibility level of the fog on the highway, and control the lighting projection lamp to project prompt information.

5. The highway fog disposal system according to claim 1, characterized in that: The disposal device also includes a voice prompt module, and the control device is also used to control the voice prompt module to issue a voice prompt when the vehicle enters the coverage area of ​​the fog.

6. The highway fog disposal system according to claim 1, characterized in that: The monitoring device includes a laser radar, an optical sensor, an environmental parameter sensor and an image sensor; the laser radar is used to preliminarily measure visibility and obtain the droplet size distribution; the optical sensor is used to measure the atmospheric extinction coefficient; the environmental parameter sensors include temperature, humidity, air pressure, wind speed and wind direction sensors, which are used to measure temperature, humidity, air pressure, wind speed and wind direction respectively; the image sensor is used to obtain images of the highway.

7. The highway fog disposal system according to claim 6, characterized in that: It also includes a preprocessing module, which is used to clean, filter and aggregate the monitoring data, and apply a time synchronization algorithm to perform time alignment processing on the monitoring data to filter out abnormal values.

8. The highway fog disposal system according to claim 1, characterized in that: There are multiple disposal devices, and the control device is also used to evaluate the severity of fog clusters based on a preset threshold classification model, and when the severity of the fog clusters reaches or exceeds a preset safety warning threshold, use a scheduling algorithm to control the nearest and idle disposal device to move to the target position.

9. The highway fog disposal system according to claim 1, characterized in that: The control device is also used to control the speed of the exhaust fan according to the concentration of the fog on the highway. The speed of the exhaust fan is expressed as: In the formula, V is the speed of the exhaust fan, C is the current concentration of the fog, and k is the adjustment coefficient. The minimum fan speed.

10. A method for treating fog on a highway, characterized in that: Applied to the highway fog disposal system according to any one of claims 1 to 9, the method comprises: Obtain monitoring data in real time; Analyze the monitoring data to obtain the concentration, coverage and visibility level of fog on the highway; and control the disposal device to move to the target position to carry out fog disposal according to the concentration, coverage and visibility level of fog on the highway.

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