Early warning system and method for dangerous chemical vehicle driving road section

Abstract

The invention discloses an early warning system and method for a dangerous chemical vehicle driving road section. The early warning system comprises a road section monitoring and early warning device and an early warning platform. The road section monitoring and early warning device is used for monitoring a driving vehicle on a current road section, and if a hazardous chemical vehicle is detected, the device collects video image information and vehicle speed information of the hazardous chemical vehicle and transmits the information to the early warning platform; the early warning platform is used for receiving the information, processing the information to obtain early warning information and an early warning grade of the hazardous chemical substance vehicle, transmitting the early warning information and the early warning grade to the road section monitoring and early warning device, and broadcasting the early warning information and the early warning grade to the vehicle-mounted radio equipment in the current road section; and the road section monitoring and early warning device is also used for receiving the early warning information and the early warning level transmitted by the early warning platform and performing early warning on the vehicle running on the current road section. According to the invention, a driver can quickly know the dangerous chemical transportation information of the road section and make a judgment in advance, so that the road driving safety is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of traffic monitoring and early warning, and in particular to an early warning system and method for a highway section where vehicles carrying hazardous chemicals are traveling. Background Art

[0002] In recent years, the scale of hazardous chemical transportation in my country has continued to expand, and road transportation accounts for the largest proportion. Since hazardous chemical transportation vehicles generally have a large load capacity and a wide transportation range, and there are still loopholes in conventional supervision, once an accident occurs during the road transportation of hazardous chemical vehicles, it will cause serious damage to other vehicles on the road, the environment and public property safety, and seriously threaten the safety of traffic operations. Therefore, in order to avoid hazardous chemical transportation accidents and reduce traffic hazards, it is very important to monitor and warn hazardous chemical vehicles. However, the existing monitoring of hazardous chemical vehicle transportation mainly focuses on the monitoring of hazardous chemical vehicles themselves, and lacks monitoring and warning of hazardous chemical vehicle driving sections. When hazardous chemical vehicles exhibit dangerous behaviors or transportation accidents occur, it is difficult for other vehicles on the road to make judgments in advance, resulting in a greatly increased risk of hazardous chemical vehicle transportation, further affecting road driving safety. Therefore, the monitoring and early warning of hazardous chemical vehicles has become an urgent problem that the transportation system needs to solve.

[0003] To sum up, the road transportation of hazardous chemicals has the characteristics of wide distribution, difficult control, and high risk. In addition, there is currently a lack of monitoring of hazardous chemical vehicle transportation sections and early warning for other vehicles on the road sections, which greatly increases the risk of chain effects of hazardous chemical transportation accidents, further affecting road safety.

[0004] In view of this, the inventor provides an early warning system and method for a highway section where vehicles carrying hazardous chemicals are traveling, in order to solve the above-mentioned technical problems. Summary of the invention

[0005] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and propose an early warning system and method for highway sections where hazardous chemical vehicles are traveling, including a road section monitoring and early warning device and an early warning platform. The road section monitoring and early warning device collects the transportation status of hazardous chemical vehicles in the current road section, and transmits the collected information to the early warning platform via wireless signals; after analysis by the early warning platform, the early warning information and the early warning level are obtained, and the early warning information and the early warning level are transmitted to the road section monitoring and early warning device via wireless signals. The road section monitoring and early warning device provides the driver with the transportation status of hazardous chemical vehicles in the current road section, so that the driver can make judgments in advance and improve road driving safety; at the same time, the early warning platform transmits the early warning information to the vehicle-mounted radio equipment in the current road section via broadcast signals.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] On the one hand, the present invention provides an early warning system for a road section where hazardous chemical vehicles are traveling, including a road section monitoring and early warning device and an early warning platform;

[0008] The road section monitoring and early warning device is set up beside the highway and is used to monitor vehicles traveling on the current road section. If a hazardous chemical vehicle is detected, the device collects video image information and vehicle speed information of the hazardous chemical vehicle and transmits the information to the early warning platform;

[0009] The warning platform is used to receive the information, process the information to obtain the warning information and warning level of the hazardous chemical vehicle, and then transmit the warning information and warning level to the road section monitoring and warning device, and broadcast it to the vehicle-mounted radio equipment in the current road section;

[0010] The road section monitoring and early warning device is also used to receive early warning information and early warning levels transmitted by the early warning platform, and to issue early warnings to vehicles traveling on the current road section.

[0011] Furthermore, the road section monitoring and early warning device includes a column fixedly connected to the ground, a mounting plate and a radar speed measurement module are arranged on any side of the column, a monitoring module and an early warning module are arranged on the mounting plate, the radar speed measurement module and the monitoring module are both connected to a signal transceiver arranged on the column, the signal transceiver is connected to a signal processor, and the signal processor is connected to the early warning module;

[0012] It also includes a power supply module arranged on the column, and the radar speed measurement module, monitoring module, early warning module, signal transceiver, and signal processor are all connected to the power supply module.

[0013] Furthermore, the signal transceiver is connected to the early warning platform.

[0014] Furthermore, the radar speed measurement module includes a radar speed measurement board arranged on either side of the column, the radar speed measurement board is provided with a speed limit sign and a first LED display screen, the radar speed measurement board is connected to the first LED display screen, and is used to display the vehicle speed measured by the radar speed measurement board, the radar speed measurement board is connected to a signal transceiver, and is used to transmit the measured vehicle speed to the early warning platform through the signal transceiver, and the radar speed measurement board and the first LED display screen are both connected to the power supply module.

[0015] Furthermore, the monitoring module includes a surveillance camera, an infrared camera and a fill light respectively connected to the power supply module, and the signal transceiver is respectively connected to the surveillance camera and the infrared camera, and is used to transmit the video image information of the hazardous chemicals vehicle to the early warning platform through the signal transceiver, and the signal processor is connected to the fill light.

[0016] Furthermore, the early warning module includes a second LED display screen and a signal indicator light group respectively connected to the power supply module, and the second LED display screen and the signal indicator light group are both connected to the signal processor. The signal transceiver transmits the early warning information and early warning level received from the early warning platform to the signal processor, and the signal processor transmits it to the second LED display screen and the signal indicator light group for warning vehicles traveling on the current road section.

[0017] Furthermore, the power supply module includes a solar photovoltaic cell assembly and a battery connected thereto, and the radar speed measuring board, the first LED display screen, the surveillance camera, the infrared camera, the fill light, the second LED display screen, the signal indicator light group, the signal transceiver and the signal processor are all connected to the battery.

[0018] Furthermore, it also includes a cleaning mechanism, which includes a water tank, a water pump, a nozzle group and a transmission cleaning component, the column is a hollow structure, the lower part of the column is provided with an opening, one side of the opening is rotatably connected to a rotating door, the water tank is arranged in the hollow structure, and the water tank is sequentially connected to a water pipe, a water pump, a water pipe and a nozzle group;

[0019] The nozzle group is fixed on the mounting plate and is located at the lower end of the second LED display screen, and is used to spray cleaning liquid to the second LED display screen. A transmission cleaning component is arranged on the mounting plate and above the nozzle group;

[0020] The water pump and the transmission cleaning assembly are both connected to a storage battery arranged in the hollow structure.

[0021] On the other hand, the present invention provides an early warning method for a road section where a hazardous chemical vehicle is traveling, based on the above-mentioned early warning system for a road section where a hazardous chemical vehicle is traveling, comprising the following steps:

[0022] Step 1: The early warning platform establishes early warning level evaluation criteria for preset early warning items;

[0023] Step 2: Monitor the vehicles on the current road section through the road section monitoring and early warning device, obtain video image information and vehicle speed information of hazardous chemical vehicles, and then transmit them to the early warning platform;

[0024] Step 3, the warning platform extracts the actual warning items and the license plate number of the hazardous chemicals vehicle from the video image information of the hazardous chemicals vehicle, and processes the actual warning items into data that can be quantified and evaluated. If the quantified evaluation data of the warning item is greater than 0, the warning item is warning information, otherwise, it is not warning information, and the warning information also includes the license plate number;

[0025] Step 4: Analyze the quantified evaluation data of the warning items in step 3 according to the preset warning analysis method to obtain a warning score, compare the warning score with the warning level evaluation criteria to obtain a warning level;

[0026] Step 5. If the warning level is at the set level, the warning platform transmits its warning level and warning information to the signal transceiver, and the signal transceiver displays the warning information on the second LED display screen through the signal processor, and the signal indicator light group displays the corresponding warning level light color. At the same time, the warning platform transmits the warning level and warning information to the vehicle-mounted radio device in the current road section through the broadcast signal; otherwise, the warning is only issued through the second LED display screen and the signal indicator light group.

[0027] Furthermore, in step 1, the preset warning items include accident warning, hazardous chemicals transportation type warning, lane warning, vehicle status warning, speeding warning, and abnormal speed warning. The warning level evaluation criteria are shown in Table 1.

[0028] In step 4, the calculation formula for the warning score is as follows:

[0029] Warning score = α*β*γ*(A+B+C+…)≤100;

[0030] Among them, α is the weather coefficient, β is the day and night coefficient, γ is the sensitivity coefficient, and A, B, C... are the data of each warning project after quantification processing;

[0031] When the warning score is greater than 80, it is an A-level warning; when the warning score is between 50 and 80, it is a B-level warning; when the warning score is between 30 and 50, it is a C-level warning; when the warning score is less than 30, it is a D-level warning;

[0032] In step 5, the set grade is A or B.

[0033] Furthermore, it also includes a ceiling, which is arranged on the top of the mounting plate and is used to protect the radar speed measurement module, the monitoring module, the early warning module and the signal transceiver.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] 1) The present invention provides an early warning system for highway sections where vehicles carrying hazardous chemicals are traveling, including a road section monitoring and early warning device and an early warning platform. The road section monitoring and early warning device can not only monitor the road section, but also warn other vehicles. In terms of monitoring, the device can not only monitor hazardous chemical vehicles appearing on the road section in real time, but also monitor abnormal temperature changes on the road section at night, and transmit the monitoring information to the early warning platform. In terms of early warning, after the device receives the early warning information transmitted by the early warning platform, the device displays relevant early warning information and early warning levels through the LED panel and signal indicator light group installed in the device, so that the driver can quickly understand the hazardous chemical transportation information on the road section, make judgments in advance, and improve road driving safety.

[0036] 2) The present invention provides an early warning system for highway sections where hazardous chemical vehicles are traveling. The road section monitoring and early warning device can measure the speed of other vehicles on the road section through the installed radar speed measurement board, replacing the speed meter installed on the road section, avoiding repeated installation and causing waste of resources. In addition, the device is also powered by solar photovoltaic components, which is conducive to energy conservation and emission reduction, and in the event of an emergency power outage on the road section, it can still ensure the smooth progress of monitoring and early warning work. The installed roof and cleaning mechanism ensure that the device's real-time monitoring and early warning of the road section are not affected by other factors. The roof can reduce the impact of rain, snow, bird excrement, etc. on camera monitoring and LED panel display to a certain extent; in addition, the cleaning mechanism installed on the device can achieve the effect of cleaning the LED display screen, avoiding the impact of the device being exposed to the external environment for a long time on the monitoring and early warning effects, so that the driver can clearly and quickly understand the road section information and reduce traffic hazards.

[0037] 3) The present invention provides an early warning system for road sections where hazardous chemical vehicles are traveling. The early warning platform receives the video image information and vehicle speed information of hazardous chemical vehicles on the road section provided by the road section monitoring and early warning device, and extracts early warning items from the video image information of hazardous chemical vehicles for quantitative processing to obtain relevant quantitative analysis data. According to the established early warning level evaluation criteria, early warning information and early warning levels are obtained and transmitted to the road section monitoring and early warning device and the vehicle-mounted radio equipment in the road section area through wireless signals and broadcast signals. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The accompanying drawings are incorporated in and constitute a part of this specification and, together with the description, serve to explain the principles of the present invention.

[0039] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0040] Figure 1 This is a schematic diagram of the structure of the early warning system for a highway section where vehicles carrying hazardous chemicals are traveling according to the present invention;

[0041] Figure 2 This is a schematic diagram of the structure of a road section monitoring and early warning device of an early warning system for a road section where vehicles carrying hazardous chemicals travel;

[0042] Figure 3 The figure is a flow chart of the early warning method for a highway section where vehicles carrying hazardous chemicals are traveling according to the present invention.

[0043] Among them: 1 is a column; 2 is a mounting plate; 3 is a radar speed measurement module; 4 is a monitoring module; 5 is an early warning module; 6 is a signal transceiver; 7 is a power supply module; 8 is a cleaning mechanism; 9 is a ceiling; 11 is a revolving door; 31 is a radar speed measurement board; 32 is a speed limit sign; 33 is a first LED display screen; 41 is a monitoring camera; 42 is an infrared camera; 43 is a fill light; 51 is a second LED display screen; 52 is a signal indicator light group; 71 is a solar photovoltaic cell assembly; 81 is a water tank; 82 is a water pump; 83 is a nozzle group; 84 is a transmission cleaning assembly. DETAILED DESCRIPTION

[0044] Here, exemplary embodiments will be described in detail, and the embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Instead, they are only examples consistent with some aspects of the present invention described in detail in the appended claims.

[0045] See also Figure 1 , Figure 2 , the present invention provides an early warning system for a highway section where hazardous chemicals vehicles travel, including a road section monitoring and early warning device and an early warning platform;

[0046] The road section monitoring and early warning device is set up beside the highway and is used to monitor vehicles traveling on the current road section. If a hazardous chemical vehicle is detected, the device collects video image information and vehicle speed information of the hazardous chemical vehicle and transmits the information to the early warning platform;

[0047] The warning platform is used to receive video image information and vehicle speed information of hazardous chemical vehicles, analyze the information to obtain warning information and warning levels of hazardous chemical vehicles, and then transmit the warning information and warning levels to the road section monitoring and warning device, and broadcast them to the vehicle-mounted radio equipment in the current road section;

[0048] The road section monitoring and early warning device is also used to receive early warning information and warning levels transmitted by the early warning platform, and to issue early warnings to vehicles traveling on the current road section.

[0049] like Figure 2As shown, the road section monitoring and early warning device includes a column 1 fixedly connected to the ground, a mounting plate 2 and a radar speed measurement module 3 are arranged on any side of the column 1, a monitoring module 4 is arranged on the top of the mounting plate 2, and an early warning module 5 is arranged on the side and bottom, the radar speed measurement module 3 and the monitoring module 4 are both connected to a signal transceiver 6 arranged on the column 1, the signal transceiver 6 is connected to a signal processor, and the signal processor is connected to the early warning module 5;

[0050] It also includes a power supply module 7 arranged on the column 1, and the radar speed measurement module 3, the monitoring module 4, the early warning module 5, the signal transceiver 6, and the signal processor are all connected to the power supply module 7. The signal transceiver 6 is connected to the early warning platform via radio. The specific early warning platform is set up in the existing road transportation management center. It is an analysis and processing platform for road hazardous chemicals vehicle transportation management. The platform consists of a computer, a detection algorithm, and an early warning level evaluation standard.

[0051] Furthermore, the radar speed measurement module 3 includes a radar speed measurement board 31 arranged on either side of the column 1, and a speed limit sign 32 and a first LED display screen 33 are provided on the radar speed measurement board 31. The radar speed measurement board 31 and the first LED display screen 33 are electrically connected to display the vehicle speed measured by the radar speed measurement board 31. The radar speed measurement board 31 and the signal transceiver 6 are electrically connected to transmit the measured vehicle speed to the signal transceiver 6 via an electrical signal. The signal transceiver 6 converts the electrical signal into a wireless signal and transmits it to the early warning platform via the wireless signal. The radar speed measurement board 31 and the first LED display screen 33 are both connected to the power supply module 7.

[0052] Specifically, the speed limit sign 32 is set according to the current road speed limit, and the radar speed measuring board 31 measures the speed of vehicles traveling on the road section in real time and displays the speed on the first LED display screen 33.

[0053] Furthermore, the monitoring module 4 includes a surveillance camera 41, an infrared camera 42 and a fill light 43 respectively connected to the power supply module 7, and the signal transceiver 6 is electrically connected to the surveillance camera 41 and the infrared camera 42 respectively, and is used to transmit the video image information of the hazardous chemicals vehicle to the early warning platform through the signal transceiver 6, and the signal processor is connected to the fill light 43.

[0054] Specifically, two monitoring cameras 41 are symmetrically arranged on the top of the mounting plate 2, and the monitoring cameras 41, the infrared camera 42 and the fill light 43 all have the function of sensing rotation. They are all prior arts and will not be described in detail here.

[0055] Furthermore, the warning module 5 includes a second LED display screen 51 and a signal indicator light group 52 respectively connected to the power supply module 7, and the second LED display screen 51 and the signal indicator light group 52 are both connected to the signal processor. The signal transceiver 6 transmits the warning information and warning level received from the warning platform to the signal processor, and the signal processor transmits it to the second LED display screen 51 and the signal indicator light group 52 for warning vehicles traveling on the current road section.

[0056] Furthermore, the power supply module 7 includes a solar photovoltaic cell assembly 71 and a battery connected thereto, and the radar speed measuring board 31, the first LED display screen 33, the monitoring camera 41, the infrared camera 42, the fill light 43, the second LED display screen 51, the signal indicator light group 52, the signal transceiver 6 and the signal processor are all connected to the battery.

[0057] In this embodiment, a solar photovoltaic cell assembly 71 is obliquely connected to the top of the column 1 through a bracket. The solar photovoltaic cell assembly 71 converts light energy into electrical energy and stores it in a battery arranged inside the column 1. The battery is used to power various electrical components installed on the highway monitoring and early warning device.

[0058] Furthermore, it also includes a cleaning mechanism 8, which includes a water tank 81, a water pump 82, a nozzle group 83 and a transmission cleaning component 84. The column 1 is a hollow structure, and an opening is provided at the lower part of the column 1. A rotating door 11 is rotatably connected to one side of the opening. The water tank 81 is arranged in the hollow structure, and the water tank 81 is connected to a water pipe, a water pump 82, a water pipe, and a nozzle group 83 in sequence.

[0059] The nozzle group 83 is fixed on the mounting plate 2 and is located at the lower end of the second LED display screen 51, and is used to spray cleaning liquid (glass liquid) to the second LED display screen 51. A transmission cleaning component 84 is provided on the mounting plate 2 and above the nozzle group 83;

[0060] The water pump 82 and the transmission cleaning assembly 84 are both connected to a battery (not shown) disposed in the hollow structure.

[0061] Among them, the transmission cleaning component 84 includes a cleaning plate 841, a wiper 842 and a transmission structure. The transmission structure is arranged on the mounting plate 2 and connected to the battery for power supply. The cleaning plate 841 is connected to the transmission structure. The wiper 842 is fixedly connected to the cleaning plate 841. The cleaning plate 841 is driven by the transmission structure to reciprocate along the length direction of the second LED display screen 51, so that the wiper 842 reciprocates along the length direction of the second LED display screen 51, and cooperates with the glass liquid sprayed by the nozzle group 83 on the second LED display screen 51 to achieve the effect of cleaning the second LED display screen 51, making it display clearly, and the driver can clearly and quickly understand the road section information.

[0062] When the glass liquid stored in the water tank 81 is insufficient and cannot be pumped to the nozzle group 83 to achieve the purpose of cleaning the second LED display screen 51, the staff can open the rotating door 11 that is rotatably connected to the lower opening of the column 1, pour the glass liquid into the water tank 81, replenish the glass liquid, and perform routine maintenance on the road section monitoring and early warning device. After the glass liquid is replenished and the routine maintenance of the device is completed, the staff should close the rotating door 11 in time to prevent the internal structure of the device from being affected by the external environment.

[0063] It should be noted that the transmission structure is a prior art and will not be described in detail here. For example, the patent number is 201110190730.9, and the patent name is sprocket-chain linear reciprocating mechanism; such as 201220248995.X, and the patent name is sprocket-chain linear reciprocating mechanism.

[0064] Furthermore, it also includes a roof 9, which adopts a bidirectional inclined roof plate and is fixedly installed on the top of the mounting plate 2 to protect the radar speed measurement module 3, the monitoring module 4, the early warning module 5 and the signal transceiver 6. Specifically, it can reduce the influence of rain, snow, bird excrement, etc. on the video image screen captured by the monitoring camera 41, the infrared camera 42 and the display effect of the second LED display screen 51 to a certain extent.

[0065] In this embodiment, the road section monitoring and early warning device realizes road section monitoring, which is mainly used to obtain video image information of hazardous chemical vehicles on the road section and the driving speed of hazardous chemical vehicles, and transmit relevant information to the early warning platform for analysis and processing;

[0066] Specifically, the road section monitoring is divided into: routine road section monitoring and unconventional road section monitoring.

[0067] Routine monitoring of road sections: The monitoring camera 41 obtains real-time video image information of the road section. When the monitoring camera 41 detects the presence of hazardous chemical vehicles on the road section, the obtained video image information is transmitted to the signal transceiver 6 via an electrical signal, and at the same time, the hazardous chemical vehicle speed obtained by the radar speed measuring board 31 is transmitted to the signal transceiver 6 via an electrical signal. The signal transceiver 6 converts the received video image information electrical signal and the hazardous chemical vehicle speed electrical signal into a wireless signal and sends it to the early warning platform. Among them, the radar speed measuring board 31 can also measure the speed of other vehicles on the road section, and display the measured speed on the radar speed measuring board 31 in real time.

[0068] Unconventional monitoring of road sections: When the road section is in rainy, snowy, foggy or nighttime weather, the visibility of the road section is low, and the video image captured by the monitoring camera 41 may be affected, resulting in unclear video images. The infrared camera 42 can use infrared thermal radiation imaging to reduce the impact of unconventional weather and nighttime monitoring on the road section. The infrared camera 42 will monitor the abnormal temperature changes of the road section in real time. When it is detected that the hazardous chemical vehicle in the road section has an abnormally high temperature, the fill light 43 will be turned on to supplement the lighting of the target hazardous chemical vehicle, improve the image quality captured by the monitoring camera 41, and transmit the video image information obtained by the monitoring camera 41 and the infrared camera 42 to the signal transceiver 6 through electrical signals. The signal transceiver 6 converts the received video image information electrical signal into a wireless signal and sends it to the early warning platform.

[0069] In this embodiment, the road section monitoring and early warning device processes the collected real-time video image information and vehicle speed information of hazardous chemical vehicles, and the specific process of obtaining early warning information and early warning levels of hazardous chemical vehicles is as follows: after the early warning platform receives the video image pictures taken by the monitoring camera 41 and / or the infrared camera 42, it identifies and extracts the video image fragments containing hazardous chemical vehicles, collects the license plate number of the hazardous chemical vehicle, the type of hazardous chemical transportation, the vehicle's driving lane, the vehicle status (stationary / moving), the vehicle speed, and whether an accident has occurred in the image frame, and obtains early warning items therefrom.

[0070] When an accident involving a hazardous chemical vehicle is identified in the image, it should be reported immediately to the relevant departments and the type of accident should be determined so that the relevant departments can respond quickly and deal with the road accident in a timely manner; at the same time, early warning information and warning levels should be sent to the road section monitoring and early warning device so that vehicles on the road section can make judgments in advance, avoid chain reactions, and reduce subsequent harm caused by the accident.

[0071] When no accident occurs to a hazardous chemical vehicle, the collected information is summarized and the data is analyzed according to the built-in hazardous chemical transport vehicle early warning analysis method to obtain early warning information and warning levels.

[0072] Early warning analysis method: Quantify each early warning item, that is, obtain the early warning score of each early warning item, calculate the early warning score based on the early warning score of each early warning item, and determine the early warning level based on the early warning score.

[0073] The warning scores for each warning item are as follows:

[0074] Accident warning: If a hazardous chemical vehicle is detected to have an accident on the road, the warning platform will immediately report it to the relevant transportation management department for further processing and analyze the severity of the accident. If the detection result is that a hazardous chemical vehicle has a minor accident, such as a vehicle scratch or other minor incident, the project will receive a warning score of 30 points; if a serious accident occurs, such as a vehicle collision, hazardous chemical leakage, vehicle explosion, vehicle fire, etc., the project will receive a warning score of 100 points; if no accident occurs, the project will receive a warning score of 0 points.

[0075] Warning of hazardous chemical transportation types: Hazardous chemical vehicle transportation types are mainly divided into nine categories: explosives, flammable or toxic gases, flammable liquids, flammable solids, oxides and organic peroxides, toxic substances and infectious substances, radioactive substances, corrosive substances, and other hazardous substances. Different types of hazardous chemical transportation pose different risks to road driving, and the relevant departments also handle accidents caused by different types of hazardous chemical transportation differently. Therefore, determining the transportation type of the target hazardous chemical vehicle is an important factor in the risk analysis of hazardous chemical vehicle transportation. When the test result is non-flammable and non-toxic, the project gets a warning score of 10 points; when it is flammable, explosive, or toxic, the project gets a warning score of 20 points.

[0076] Lane warning: Based on the road section information transmitted in real time by the road section monitoring and warning device, the lane of the target hazardous chemical vehicle is determined, thereby determining whether the hazardous chemical vehicle has any illegal driving behavior. If the detection result shows that the hazardous chemical vehicle is driving in the overtaking lane or the small car lane, the warning score for this item is 10 points; if it is driving in the designated lane for hazardous chemical vehicles, the warning score for this item is 0 points.

[0077] Vehicle static and dynamic status warning: Since vehicles are generally prohibited from parking during normal highway operation, the current status of hazardous chemical vehicles (parked / moving) can be detected to determine whether they have abnormal behavior. If the detection result shows that the hazardous chemical vehicle is parked, the warning score for this item is 30 points; if the hazardous chemical vehicle is moving, the warning score for this item is 0 points.

[0078] Speeding warning: Due to the characteristics of hazardous chemical vehicles and the traffic risks caused by speeding, the prescribed speed of hazardous chemical vehicles on a road section is usually lower than that of other vehicles. By detecting the speed of hazardous chemical vehicles and comparing it with the prescribed speed of the road section, it is determined whether the hazardous chemical vehicles bring road risks due to their speed. If the test result shows that the hazardous chemical vehicle exceeds the prescribed speed but is less than 10%, the warning score for this item is 10 points; if it exceeds the prescribed speed by 10% but less than 20%, the warning score for this item is 15 points; if it exceeds the prescribed speed by 20%, the warning score for this item is 20 points; if the hazardous chemical vehicle is within the prescribed speed range, the warning score for this item is 0 points.

[0079] Abnormal speed warning: Usually, when a hazardous chemical vehicle is driving, its speed will not drop or increase rapidly in a short period of time. Therefore, when the speed of a hazardous chemical vehicle changes abnormally, it is judged that it may have abnormal behavior. If the detection result shows that the speed of the hazardous chemical vehicle drops or increases rapidly in a short period of time, the warning score for this item is 10 points; if the speed of the hazardous chemical vehicle is uniform, the warning score for this item is 0 points.

[0080] The warning score is determined based on the score of each warning item. The following formula is used to calculate the warning score:

[0081] Warning score = α*β*γ*(A+B+C+…)≤100 (if it exceeds 100, it will be taken as 100);

[0082] Among them, α is the weather coefficient, β is the day and night coefficient, γ is the sensitivity coefficient, and A, B, C... are the warning scores for each sub-item.

[0083] It should be noted that weather conditions have an important impact on the driving of hazardous chemical vehicles and other vehicles on the road. Under the influence of bad weather, the driver's judgment of the road conditions ahead will be seriously disturbed, greatly increasing the risk of hazardous chemical vehicle transportation. In addition, bad weather will also affect the speed of relevant departments in handling traffic accidents. Therefore, weather conditions are an important factor in the risk analysis of hazardous chemical vehicle transportation. For the assessment of the degree of weather conditions, this analysis method uses the weather coefficient α to make a judgment.

[0084] According to the different weather conditions reported by the local weather forecast, the weather coefficient α is obtained. When the weather is sunny, α = 1; when the weather is foggy, light rain, light snow or sleet, α = 1.1; when the weather is heavy fog, moderate rain, moderate snow, α = 1.2; when the weather is dense fog, heavy rain, heavy snow, α = 1.5; when the weather is heavy fog, heavy rain, heavy snow, α = 1.8.

[0085] Day and night status: Driving during the day or night has a significant impact on the driving of hazardous chemical vehicles and other vehicles on the road. When driving at night, the driver's mental state, judgment ability, and vision will be disturbed, greatly increasing the risk of hazardous chemical vehicle transportation. Therefore, the day and night status is an important factor in the risk analysis of hazardous chemical vehicle transportation. For the evaluation of the degree of influence of the day and night status, this analysis method uses the day and night coefficient α to judge.

[0086] According to the current day and night state, the day and night coefficient β is obtained. When the monitoring period is in the daytime, β = 1.0; when the monitoring period is in the nighttime, β = 1.2.

[0087] Sensitivity: Holidays have a significant impact on vehicle travel. On holidays, the number of vehicles on the road will increase significantly, which will increase the risk of road travel. After an accident occurs, the impact, scope and losses will be greatly increased, and it will be more difficult for relevant departments to handle the accident and evacuate people and vehicles on the road. Therefore, for the assessment of the impact of holidays, this analysis method uses the sensitivity coefficient γ to judge.

[0088] According to the date of the day, the sensitivity coefficient γ is obtained. When the monitoring date is not a holiday or a major event, γ = 1.0; when the monitoring date is a holiday or a major event, γ = 1.2.

[0089] The warning level is determined by the obtained warning score, and the warning level is judged according to the standards divided in Table 1.

[0090] Table 1 Warning level classification standards

[0091] Warning level Warning score A-level warning ＞80 Level B warning 50～80 C-level warning 30～50 D-level warning ＜30

[0092] The obtained warning level and warning information are transmitted to the road section monitoring and warning device and the vehicle-mounted radio equipment in the road section area via wireless signals and broadcast signals to realize road section warning.

[0093] In this embodiment, the road section monitoring and early warning device also realizes road section early warning, specifically: after receiving the wireless signal containing early warning information and early warning level transmitted by the early warning platform, the signal transceiver 6 of the road section monitoring and early warning converts the wireless signal into an electrical signal and transmits it to the signal processor. After the signal processor processes the electrical signal, it transmits it to the second LED display screen 51 and the signal indicator light group 52 respectively. The second LED display screen 51 displays the early warning information according to the received signal, and the signal indicator light group 52 displays the corresponding early warning level light color according to the received signal. Through the joint operation of the second LED display screen 51 and the signal indicator light group 52, the early warning function of the road section monitoring and early warning device is realized.

[0094] The on-board radio equipment in the road section area receives the broadcast signal sent by the warning platform and broadcasts the road section warning information and warning level to the driver as a supplementary warning. For vehicles not within the monitoring range, they can receive warning information through the on-board radio broadcast, thereby increasing driver vigilance or planning other driving routes to reduce the risk of accidents.

[0095] Through the coordinated warning of road section monitoring and early warning devices and on-board radio equipment, not only the problem of insufficient warning range of road section monitoring and early warning devices is solved, but it also enables drivers to react earlier, avoid the chain reaction of accidents, and reduce the pressure on relevant departments.

[0096] The second LED display screen 51 displays the road section warning information according to the information generated by the warning platform, including: license plate number information of hazardous chemical vehicles, hazardous chemical transportation type, vehicle status, vehicle lane, vehicle speed, etc. The warning content is adjusted according to the actual situation, but it should be noted that the displayed information should be concise and clear to avoid too much secondary information that affects the driver's judgment.

[0097] The signal indicator light group 52 displays the corresponding light color according to the warning level generated by the warning platform. When the warning level is D or there is no warning, the signal indicator light color remains green; when the warning level is B or C, the signal indicator light color is adjusted to yellow; when the warning level is A, the signal indicator light flashes yellow.

[0098] When a major accident occurs to a hazardous chemical vehicle, the second LED display screen 51 focuses on displaying the type of accident, and the signal indicator light group 52 flashes a strong red light, so that drivers of other vehicles on the road section can quickly and clearly understand the accident, make judgments in advance, and reduce the harm of the accident.

[0099] On the other hand, an embodiment of the present invention further provides an early warning method for a road section where a hazardous chemical vehicle is traveling, based on the above-mentioned early warning system for a road section where a hazardous chemical vehicle is traveling, comprising the following steps:

[0100] Step 1: The early warning platform establishes early warning level evaluation criteria for preset early warning items;

[0101] Step 2: Monitor the vehicles on the current road section through the road section monitoring and early warning device, obtain video image information and vehicle speed information of hazardous chemical vehicles, and then transmit them to the early warning platform;

[0102] Step 3, the warning platform extracts the actual warning items and the license plate number of the hazardous chemicals vehicle from the video image information of the hazardous chemicals vehicle, and processes the actual warning items into data that can be quantified and evaluated. If the quantified evaluation data of the warning item is greater than 0, the warning item is warning information, otherwise, it is not warning information, and the warning information also includes the license plate number;

[0103] Step 4: Analyze the quantified evaluation data of the warning items in step 3 according to the preset warning analysis method to obtain a warning score, compare the warning score with the warning level evaluation criteria to obtain a warning level;

[0104] Step 5. If the warning level is at the set level, the warning platform transmits its warning level and warning information to the signal transceiver 6. The signal transceiver 6 displays the warning information on the second LED display screen 51 through the signal processor, and the signal indicator light group 52 displays the corresponding warning level light color. At the same time, the warning platform transmits the warning level and warning information to the vehicle-mounted radio device in the current road section through the broadcast signal; otherwise, the warning is only issued through the second LED display screen 51 and the signal indicator light group 52.

[0105] Among them, in step 1, the preset warning items include accident warning, hazardous chemicals transportation type warning, lane warning, vehicle status warning, speeding warning, and abnormal speed warning. The warning level evaluation criteria are shown in Table 1.

[0106] In step 4, the calculation formula for the warning score is as follows:

[0107] Warning score = α*β*γ*(A+B+C+…)≤100;

[0108] Among them, α is the weather coefficient, β is the day and night coefficient, γ is the sensitivity coefficient, and A, B, C... are the data of each warning project after quantification processing;

[0109] When the warning score is greater than 80, it is an A-level warning; when the warning score is between 50 and 80, it is a B-level warning; when the warning score is between 30 and 50, it is a C-level warning; when the warning score is less than 30, it is a D-level warning.

[0110] In step 5, the set level is A or B;

[0111] Specifically, the early warning analysis method has been described above and will not be repeated here.

[0112] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention.

[0113] It should be understood that the present invention is not limited to what has been described above and that various modifications and changes may be made without departing from its scope. The scope of the present invention is limited only by the appended claims.

Claims

1. An early warning system for hazardous chemicals vehicles traveling on highway sections, characterized in that: Including road section monitoring and early warning devices and early warning platforms; The road section monitoring and early warning device is set up beside the highway and is used to monitor vehicles traveling on the current road section. If a hazardous chemical vehicle is detected, the device collects video image information and vehicle speed information of the hazardous chemical vehicle and transmits the information to the early warning platform; The warning platform is used to receive the information, process the information to obtain the warning information and warning level of the hazardous chemical vehicle, and then transmit the warning information and warning level to the road section monitoring and warning device, and broadcast it to the vehicle-mounted radio equipment in the current road section; The road section monitoring and early warning device is also used to receive early warning information and early warning levels transmitted by the early warning platform, and to issue early warnings to vehicles traveling on the current road section.

2. The early warning system for hazardous chemicals vehicles traveling on highway sections according to claim 1 is characterized in that: The road section monitoring and early warning device comprises a column (1) fixedly connected to the ground, a mounting plate (2) and a radar speed measurement module (3) are arranged on any side of the column (1), a monitoring module (4) and an early warning module (5) are arranged on the mounting plate (2), the radar speed measurement module (3) and the monitoring module (4) are both connected to a signal transceiver (6) arranged on the column (1), the signal transceiver (6) is connected to a signal processor, and the signal processor is connected to the early warning module (5); It also comprises a power supply module (7) arranged on the column (1); the radar speed measurement module (3), the monitoring module (4), the early warning module (5), the signal transceiver (6), and the signal processor are all connected to the power supply module (7).

3. The early warning system for hazardous chemicals vehicles traveling on highway sections according to claim 2 is characterized in that: The signal transceiver (6) is connected to the early warning platform.

4. The early warning system for hazardous chemicals vehicles traveling on highway sections according to claim 3 is characterized in that: The radar speed measurement module (3) comprises a radar speed measurement board (31) arranged on either side of the column (1); a speed limit mark (32) and a first LED display screen (33) are arranged on the radar speed measurement board (31); the radar speed measurement board (31) is connected to the first LED display screen (33) and is used to display the vehicle speed measured by the radar speed measurement board (31); the radar speed measurement board (31) is connected to a signal transceiver (6) and is used to transmit the measured vehicle speed to an early warning platform through the signal transceiver (6); and the radar speed measurement board (31) and the first LED display screen (33) are both connected to a power supply module (7).

5. The early warning system for hazardous chemicals vehicles traveling on highway sections according to claim 4 is characterized in that: The monitoring module (4) comprises a monitoring camera (41), an infrared camera (42) and a fill light (43) respectively connected to the power supply module (7); the signal transceiver (6) is respectively connected to the monitoring camera (41) and the infrared camera (42) and is used to transmit the video image information of the hazardous chemical vehicle to the early warning platform through the signal transceiver (6); and the signal processor is connected to the fill light (43).

6. The early warning system for hazardous chemicals vehicles traveling on highway sections according to claim 5 is characterized in that: The warning module (5) comprises a second LED display screen (51) and a signal indicator light group (52) respectively connected to the power supply module (7); the second LED display screen (51) and the signal indicator light group (52) are both connected to a signal processor; the signal transceiver (6) transmits the warning information and warning level received from the warning platform to the signal processor; the signal processor transmits the information to the second LED display screen (51) and the signal indicator light group (52) for issuing a warning to vehicles travelling on the current road section.

7. The early warning system for hazardous chemicals vehicles traveling on highway sections according to claim 6 is characterized in that: The power supply module (7) comprises a solar photovoltaic cell assembly (71) and a storage battery connected thereto, and the radar speed measuring board (31), the first LED display screen (33), the monitoring camera (41), the infrared camera (42), the fill light (43), the second LED display screen (51), the signal indicator light group (52), the signal transceiver (6) and the signal processor are all connected to the storage battery.

8. The early warning system for hazardous chemicals vehicles traveling on highway sections according to claim 1 is characterized in that: It also comprises a cleaning mechanism (8), which comprises a water tank (81), a water pump (82), a nozzle group (83) and a transmission cleaning component (84); the column (1) is a hollow structure; an opening is provided at the lower part of the column (1); a rotating door (11) is rotatably connected to one side of the opening; the water tank (81) is arranged in the hollow structure; and a water pipe, a water pump (82), a water pipe and a nozzle group (83) are sequentially connected to the water tank (81); The nozzle group (83) is fixed on the mounting plate (2) and is located at the lower end of the second LED display screen (51) and is used to spray cleaning liquid onto the second LED display screen (51). A transmission cleaning component (84) is provided on the mounting plate (2) and above the nozzle group (83); The water pump (82) and the transmission cleaning assembly (84) are both connected to a storage battery arranged in the hollow structure.

9. A warning method for a road section where hazardous chemicals vehicles are traveling, characterized in that: The early warning system for a road section where vehicles carrying hazardous chemicals are traveling according to any one of claims 1 to 8 comprises the following steps: Step 1: The early warning platform establishes early warning level evaluation criteria for preset early warning items; Step 2: Monitor the vehicles on the current road section through the road section monitoring and early warning device, obtain video image information and vehicle speed information of hazardous chemical vehicles, and then transmit them to the early warning platform; Step 3, the warning platform extracts the actual warning items and the license plate number of the hazardous chemicals vehicle from the video image information of the hazardous chemicals vehicle, and processes the actual warning items into data that can be quantified and evaluated. If the quantified evaluation data of the warning item is greater than 0, the warning item is warning information, otherwise, it is not warning information, and the warning information also includes the license plate number; Step 4: Calculate the quantified evaluation data of the warning items in step 3 according to the preset warning analysis method to obtain a warning score, and compare the warning score with the warning level evaluation criteria to obtain a warning level; Step 5: If the warning level is at the set level, the warning platform transmits its warning level and warning information to the signal transceiver (6), and the signal transceiver (6) displays the warning information on the second LED display screen (51) through the signal processor, and the signal indicator light group (52) displays the corresponding warning level light color. At the same time, the warning platform transmits the warning level and warning information to the vehicle-mounted radio device in the current road section through the broadcast signal; otherwise, the warning is only issued through the second LED display screen (51) and the signal indicator light group (52).

10. The early warning method for a road section where hazardous chemicals vehicles are traveling according to claim 9 is characterized in that: In step 1, the preset warning items include accident warning, hazardous chemicals transportation type warning, lane warning, vehicle status warning, speeding warning, and abnormal speed warning; In step 4, the calculation formula for the warning score is as follows: Warning score = α*β*γ*(A+B+C+…)≤100; Among them, α is the weather coefficient, β is the day and night coefficient, γ is the sensitivity coefficient, and A, B, C... are the data of each warning project after quantification processing; When the warning score is greater than 80, it is an A-level warning; when the warning score is between 50 and 80, it is a B-level warning; when the warning score is between 30 and 50, it is a C-level warning; when the warning score is less than 30, it is a D-level warning; In step 5, the set grade is A or B.

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