Risk dynamic early warning assessment method and device for hazardous chemicals transportation vehicles

Abstract

The embodiment of the present invention provides a method and device for dynamic early warning assessment of the risk of hazardous chemical transport vehicles, which belongs to the field of safety technology management and solves the problem that the safety risk of hazardous chemical transport vehicles cannot be measured in real time. The method includes: by obtaining the types of hazardous chemicals transported by the hazardous chemical transport vehicle, the transportation volume, the early warning data corresponding to the risk indicators in the vehicle risk early warning of the hazardous chemical transport vehicle, and the environmental information corresponding to the real-time driving area, the real-time risk of the hazardous chemical transport vehicle can be assessed in real time, and the dynamic management of high-risk vehicles by the enterprise is realized. The embodiment of the present invention is applicable to the safety management of hazardous chemical transport vehicles.

Description

Technical Field

[0001] The present invention relates to the field of safety technology management, and in particular to a risk dynamic early warning assessment method and device for hazardous chemicals transport vehicles. Background Art

[0002] Dangerous chemicals (hazardous chemicals for short) as important chemical raw materials play an irreplaceable role in the national economy and social development.

[0003] Although existing technologies have successively built hazardous chemicals road transport information supervision platforms, and some logistics companies have also established hazardous chemicals road transport information monitoring platforms, the supervision platforms can only provide a large amount of monitoring data. As for how to apply the monitoring data and how to achieve an early warning mechanism, these are issues that need to be urgently addressed. Summary of the invention

[0004] The purpose of the embodiments of the present invention is to provide a method and device for dynamic early warning assessment of risks of hazardous chemicals transport vehicles, which solves the problem that the safety risks of hazardous chemicals transport vehicles cannot be measured in real time. By obtaining the types and transportation volumes of hazardous chemicals transported by the hazardous chemicals transport vehicles, the early warning data corresponding to the risk indicators in the vehicle risk warning of the hazardous chemicals transport vehicles, and the environmental information of the real-time driving area, the real-time risks of the hazardous chemicals transport vehicles can be assessed in real time, thereby realizing the dynamic management of high-risk vehicles by enterprises.

[0005] In order to achieve the above-mentioned purpose, an embodiment of the present invention provides a method for dynamic early warning assessment of risks of hazardous chemicals transport vehicles, the method comprising: obtaining the type of hazardous chemicals transported by the hazardous chemicals transport vehicle, the transportation volume, the early warning data corresponding to the risk indicators in the vehicle risk warning of the hazardous chemicals transport vehicle, and the environmental information of the real-time driving area; determining the hazardous chemicals risk index according to the type of hazardous chemicals, the transportation volume, the preset hazardous chemical hazard level and the preset transportation volume classification; determining the active safety prevention risk index according to the early warning data corresponding to the risk indicator and the preset weight; obtaining the environmental impact factor corresponding to the real-time driving area according to the preset map, the environmental information of the real-time driving area and the preset climate conversion relationship; and evaluating the real-time risk of the hazardous chemicals transport vehicle according to the hazardous chemicals risk index, the active safety prevention risk index and the environmental impact factor.

[0006] Furthermore, the determination of the risk index of hazardous chemicals according to the type of hazardous chemicals, the transportation volume, the preset hazardous chemical hazard level and the preset transportation volume classification includes: determining the health hazard level, flammability level, chemical reactivity level and special hazard level corresponding to the type of hazardous chemicals according to the type of hazardous chemicals and the preset hazardous chemical hazard level; determining the transportation volume risk level according to the transportation volume and the preset transportation volume classification; Get the risk index of hazardous chemicals, where RI is the risk index of hazardous chemicals, F Q is the risk level of the transport volume, N H is the health hazard level, N F is the flammability grade, N R is the chemical reactivity level, N S The special hazard level.

[0007] Further, the warning data includes the number of historical warnings and the number of real-time warnings, and the determination of the active safety prevention risk index according to the warning data corresponding to the risk indicator and the preset weight includes: The active safety prevention risk index is obtained, where α is the active safety prevention risk index, and w i is the preset weight corresponding to the i-th risk indicator, q i is the number of real-time warnings corresponding to the i-th risk indicator, Q i is the number of historical warnings corresponding to the ith risk indicator, and n is the number of risk indicators.

[0008] Furthermore, the vehicle risk warning includes vehicle status warning, driver driving behavior warning and vehicle management warning. The method also includes: determining the preset weights corresponding to the risk indicators in each type of vehicle risk warning through a hierarchical analysis method.

[0009] Further, the method of determining the preset weights corresponding to the risk indicators in each type of vehicle risk warning by the hierarchical analysis method includes: obtaining a judgment matrix corresponding to each type of vehicle risk warning, the judgment matrix including preset values ​​of importance comparison between risk indicators belonging to the same type of vehicle risk warning; The normalized results of the elements in the judgment matrix corresponding to the risk warning of the a-th vehicle are obtained, where W aij is the risk indicator W for the risk warning of the a-th type of vehicle ai Relative to the risk indicator W aj The importance of compared to the preset value, W aij The normalized result of n is the number of risk indicators belonging to the risk warning of the a-th type of vehicle; according to Get the risk index W belonging to the risk warning of the a-th type of vehicle ai The corresponding preset weight.

[0010] Further, the environmental information includes real-time weather corresponding to the real-time driving area, and the environmental impact factor corresponding to the real-time driving area is obtained according to the preset map, the environmental information of the real-time driving area and the preset climate conversion relationship, including: obtaining the driving area factor in the environmental impact factor corresponding to the real-time driving area according to the preset map and the real-time driving area; obtaining the meteorological impact factor in the environmental impact factor corresponding to the real-time driving area according to the real-time weather and the preset climate conversion relationship.

[0011] Furthermore, obtaining the driving area factor in the environmental impact factor corresponding to the real-time driving area based on the preset map and the implementation of the real-time driving area includes: determining the road curvature coefficient, road slope coefficient, lane coefficient, special road section coefficient and sensitive area influence coefficient corresponding to the real-time driving area according to the position of the real-time driving area on the preset map; and determining the product of the road curvature coefficient, road slope coefficient, lane coefficient, special road section coefficient and sensitive area influence coefficient as the driving area factor in the environmental impact factor corresponding to the real-time driving area.

[0012] Further, obtaining the meteorological impact factor among the environmental impact factors corresponding to the real-time driving area according to the real-time weather and a preset climate conversion relationship includes: searching for the meteorological impact factor corresponding to the real-time weather in the preset climate conversion relationship.

[0013] Furthermore, the real-time risk of the hazardous chemicals transport vehicle is evaluated based on the hazardous chemicals risk index, the active safety prevention risk index and the environmental impact factor, including: according to R=(RI+α)*h, a real-time risk index corresponding to the real-time risk of the hazardous chemicals transport vehicle is obtained, wherein R is the real-time risk index, RI is the hazardous chemicals risk index, α is the active safety prevention risk index, and h is the environmental impact factor, wherein h=d*c, d is the driving area factor, and c is the meteorological impact factor.

[0014] Furthermore, the evaluating of the real-time risk of the hazardous chemicals transport vehicle includes: determining the risk level corresponding to the real-time risk index according to a risk index range corresponding to a preset risk level; and when the risk level is higher than a level threshold, prompting the user to whom the hazardous chemicals transport vehicle belongs.

[0015] Correspondingly, an embodiment of the present invention also provides a risk dynamic warning assessment device for hazardous chemicals transport vehicles, the device comprising: an acquisition unit, used to acquire the type of hazardous chemicals transported by the hazardous chemicals transport vehicle, the transportation volume, the warning data corresponding to the risk index in the vehicle risk warning of the hazardous chemicals transport vehicle, and the environmental information of the real-time driving area; a hazardous chemicals risk determination unit, used to determine the hazardous chemicals risk index according to the type of hazardous chemicals, the transportation volume, the preset hazardous chemical hazard level and the preset transportation volume classification; an active safety prevention risk determination unit, used to determine the active safety prevention risk index according to the warning data corresponding to the risk index and the preset weight; an environmental impact determination unit, used to obtain the environmental impact factor corresponding to the real-time driving area according to a preset map, the environmental information of the real-time driving area and a preset climate conversion relationship; an evaluation unit, used to evaluate the real-time risk of the hazardous chemicals transport vehicle according to the hazardous chemicals risk index, the active safety prevention risk index and the environmental impact factor.

[0016] Furthermore, the hazardous chemicals risk determination unit is further used to determine the health hazard level, flammability level, chemical reactivity level and special hazard level corresponding to the hazardous chemicals type according to the hazardous chemicals type and the preset hazardous chemicals hazard level; determine the transportation volume risk level according to the transportation volume and the preset transportation volume classification; Get the risk index of hazardous chemicals, where RI is the risk index of hazardous chemicals, F Q is the risk level of the transport volume, N H is the health hazard level, N F is the flammability grade, N R is the chemical reactivity level, N S The special hazard level.

[0017] Furthermore, the warning data includes the number of historical warnings and the number of real-time warnings, and the active safety prevention risk determination unit is also used to determine the risk of The active safety prevention risk index is obtained, where α is the active safety prevention risk index, and w i is the preset weight corresponding to the i-th risk indicator, q i is the number of real-time warnings corresponding to the i-th risk indicator, Q i is the number of historical warnings corresponding to the ith risk indicator, and n is the number of risk indicators.

[0018] Furthermore, the vehicle risk warning includes vehicle status warning, driver driving behavior warning and vehicle management warning. The device also includes: a weight determination unit, which is used to determine the preset weight corresponding to the risk indicator in each type of vehicle risk warning through a hierarchical analysis method.

[0019] Furthermore, the weight determination unit is further used to obtain a judgment matrix corresponding to each type of vehicle risk warning, wherein the judgment matrix includes a preset value for importance comparison between risk indicators belonging to the same type of vehicle risk warning; The normalized results of the elements in the judgment matrix corresponding to the risk warning of the a-th vehicle are obtained, where W aij is the risk indicator W for the risk warning of the a-th type of vehicle ai Relative to the risk indicator W aj The importance of compared to the preset value, W aij The normalized result of n is the number of risk indicators belonging to the risk warning of the a-th type of vehicle; according to Get the risk index W belonging to the risk warning of the a-th type of vehicle ai The corresponding preset weight.

[0020] Furthermore, the environmental information includes real-time weather corresponding to the real-time driving area, and the environmental impact determination unit is also used to obtain the driving area factor in the environmental impact factor corresponding to the real-time driving area according to the preset map and the implemented real-time driving area; and obtain the meteorological impact factor in the environmental impact factor corresponding to the real-time driving area according to the real-time weather and a preset climate conversion relationship.

[0021] Furthermore, the environmental impact determination unit is also used to determine the road curvature coefficient, road slope coefficient, lane coefficient, special road section coefficient and sensitive area influence coefficient corresponding to the real-time driving area according to the position of the real-time driving area on the preset map; and determine the product of the road curvature coefficient, road slope coefficient, lane coefficient, special road section coefficient and sensitive area influence coefficient as the driving area factor in the environmental impact factor corresponding to the real-time driving area.

[0022] Furthermore, the environmental impact determination unit is further used to find the meteorological impact factor corresponding to the real-time weather in the preset climate conversion relationship.

[0023] Furthermore, the evaluation unit is also used to obtain a real-time risk index corresponding to the real-time risk of the hazardous chemicals transport vehicle according to R=(RI+α)*h, wherein R is the real-time risk index, RI is the hazardous chemicals risk index, α is the active safety prevention risk index, and h is the environmental impact factor, wherein h=d*c, d is the driving area factor, and c is the meteorological impact factor.

[0024] Furthermore, the evaluation unit is also used to determine the risk level corresponding to the real-time risk index according to the risk index range corresponding to the preset risk level; when the risk level is higher than the level threshold, the user to whom the hazardous chemicals transport vehicle belongs is prompted.

[0025] Correspondingly, an embodiment of the present invention further provides a machine-readable storage medium, on which instructions are stored, and the instructions are used to enable a machine to execute the risk dynamic early warning assessment method for hazardous chemicals transport vehicles as described above.

[0026] Through the above technical scheme, an organic combination of the characteristics of hazardous chemicals themselves, vehicle status warnings, driver driving behavior warnings, vehicle management warnings and environmental influencing factors is achieved, which solves the problem of being unable to measure the safety risks of hazardous chemical transport vehicles in real time. The real-time risks of hazardous chemical transport vehicles can be evaluated in real time, so as to provide a safety management basis for the companies to which the vehicles belong, eliminate safety hazards in a timely manner, and ensure the safety of hazardous chemical transportation.

[0027] Other features and advantages of the embodiments of the present invention will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are used to provide a further understanding of the embodiments of the present invention and constitute a part of the specification. Together with the following specific implementations, they are used to explain the embodiments of the present invention, but do not constitute a limitation on the embodiments of the present invention. In the accompanying drawings:

[0029] Figure 1 It is a flow chart of a method for dynamic early warning assessment of risk of hazardous chemicals transport vehicles provided by an embodiment of the present invention;

[0030] Figure 2 is a schematic diagram of a judgment matrix corresponding to a vehicle risk warning A provided in an embodiment of the present invention;

[0031] Figure 3 It is a structural schematic diagram of a risk dynamic early warning assessment device for hazardous chemicals transport vehicles provided by an embodiment of the present invention;

[0032] Figure 4 It is a structural schematic diagram of another risk dynamic early warning assessment device for hazardous chemicals transport vehicles provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0033] The specific implementation of the embodiment of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the embodiment of the present invention, and is not used to limit the embodiment of the present invention.

[0034] The indicator system for risk warning of hazardous chemicals transport vehicles can be divided into four major elements: people, machines, environment, and management. When constructing the above indicator system, the following principles need to be considered:

[0035] (1) Scientific principle

[0036] The index system must be able to objectively reflect the main factors affecting the risk of hazardous chemicals transport vehicles and their internal connections, essential characteristics and regularities, and objectively reflect the actual situation of hazardous chemicals transport vehicles during transportation. The establishment of these indicators should be based on scientific rationality and in line with the actual situation.

[0037] (2) Systematic principle

[0038] Risk warning for hazardous chemicals transport vehicles is a complex system involving many aspects. Therefore, the established indicator system must be able to fully reflect the overall status of hazardous chemicals transport vehicles while reflecting all aspects of hazardous chemicals transportation risk factors.

[0039] (3) The principle of combining quantitative analysis with qualitative analysis

[0040] Since the transportation of hazardous chemicals is technical and managerial, the principle of combining qualitative and quantitative indicators should be adopted when conducting multi-dimensional, multi-indicator comprehensive early warning for hazardous chemicals transport vehicles.

[0041] (4) Representativeness principle

[0042] In order to fully describe the risk characteristics of hazardous chemicals transport vehicles, representative indicators with the most information should be selected. Moreover, the risk warning indicator system for hazardous chemicals transport vehicles should be simple and clear, with clear levels, and use as few indicators as possible to reflect the safety status of hazardous chemicals transport vehicles.

[0043] (5) Dynamic principle

[0044] The risks of vehicles transporting hazardous chemicals are dynamically changing, and the importance of risk factors affecting them is also constantly changing. Therefore, the selected indicators should be able to accurately reflect this dynamic change so as to conduct timely monitoring and early warning of the risks of vehicles transporting hazardous chemicals.

[0045] Based on the above principles, an early warning indicator system for hazardous chemicals transport vehicles has been established: including 6 first-level indicators, namely, hazardous chemicals medium status warning, vehicle status warning, driver driving behavior warning, environmental condition warning, meteorological condition warning, and vehicle management warning. Each first-level indicator also includes second-level indicators, as shown below:

[0046] 1) Hazardous chemicals medium status warning includes the health hazard level, flammability level, chemical reactivity level, special hazard level and transportation volume risk level of hazardous chemicals.

[0047] 2) Vehicle status warnings include speeding, overtaking on a curve, offline alarm, parking timeout alarm, lane departure alarm, front collision alarm, left lane departure, right lane departure, out of monitoring, too close distance, sudden braking and sudden acceleration.

[0048] 3) Driver driving behavior warnings include lens blocking, overtime driving, closing eyes, yawning, distracted driving, smoking, playing with or making phone calls on the phone, and wearing sunglasses.

[0049] 4) Environmental condition warning includes road conditions, such as road curvature coefficient, road slope coefficient, lane coefficient, special road section coefficient, and sensitive area impact coefficient.

[0050] 5) Weather condition warnings include good weather, rainy and foggy weather, and icy and snowy weather.

[0051] 6) Vehicle management warning includes driver qualification certificate, vehicle tank inspection report, vehicle road transport certificate and safety valve calibration certificate.

[0052] In the following embodiment of the present invention, based on the characteristics of hazardous chemicals themselves and the risk influencing factors of the transportation process, the real-time risk index and / or risk level of the hazardous chemicals transportation vehicle is used to quantitatively calculate the risk of the hazardous chemicals transportation vehicle. The determination of the real-time risk index and / or risk level of the hazardous chemicals transportation vehicle includes four parts: the hazardous chemicals risk index, the active safety prevention risk index, the environmental impact factor, and the meteorological impact factor. The embodiment of the present invention will be described in detail below.

[0053] Embodiment 1

[0054] Figure 1 FIG. 1 is a flow chart of a method for dynamic early warning assessment of risk of hazardous chemicals transport vehicles provided by an embodiment of the present invention. Figure 1 As shown, the method is applied to a server platform, based on existing active safety equipment, such as in-vehicle cameras, out-vehicle cameras, various sensors, vehicle positioning technology, network technology, and geographic information technology, to obtain data required for determining the real-time risk of hazardous chemicals transport vehicles. The method includes the following steps:

[0055] Step 101, obtaining the types and transportation volume of hazardous chemicals transported by the hazardous chemicals transport vehicle, warning data corresponding to the risk indicators in the vehicle risk warning of the hazardous chemicals transport vehicle, and environmental information of the real-time driving area;

[0056] Step 102, determining a hazardous chemical risk index according to the type of hazardous chemicals, the transportation volume, the preset hazardous chemical hazard level, and the preset transportation volume classification;

[0057] Step 103, determining an active safety prevention risk index according to the warning data corresponding to the risk indicator and a preset weight;

[0058] Step 104, obtaining an environmental impact factor corresponding to the real-time driving area according to a preset map, environmental information of the real-time driving area, and a preset climate conversion relationship;

[0059] Step 105, evaluating the real-time risk of the hazardous chemicals transport vehicle according to the hazardous chemicals risk index, the active safety prevention risk index and the environmental impact factor.

[0060] Among them, when the hazardous chemicals transported by the hazardous chemicals transport vehicle are determined, the types of hazardous chemicals and the transportation volume can be known, so that the hazardous chemicals risk index can be determined according to the types of hazardous chemicals, the transportation volume, the preset hazardous chemical hazard level and the preset transportation volume classification. In addition, the warning data corresponding to the risk indicators in the vehicle risk warning of the hazardous chemicals transport vehicle may include the number of historical warnings and the number of real-time warnings. The number of real-time warnings can be obtained based on existing active safety equipment (for example, in-vehicle cameras, external cameras, various sensors, etc.). The environmental information of the real-time driving area may include the real-time weather corresponding to the real-time driving area. In addition to using vehicle positioning technology, geographic information technology can be used to view the location of the real-time driving area in real time, and network technology can be used to view the real-time weather corresponding to the real-time driving area in real time.

[0061] In step 102, the determined hazardous chemicals risk index includes two parts, one part is the hazardous chemicals hazard level, which is determined by the health hazard level, flammability level, chemical reactivity level and special hazard level corresponding to the type of hazardous chemicals; the other part is the transportation volume risk level.

[0062] According to the hazardous chemical category and the preset hazardous chemical hazard level, the health hazard level, flammability level, chemical reactivity level and special hazard level corresponding to the hazardous chemical category are determined. The preset hazardous chemical hazard level can be found in Tables 1 to 4 below.

[0063] Among them, the health hazard level N H It can be determined from the following Table 1. The NFPA (National Fire Protection Association) standard is used to classify health hazards into 4, 3, and 2 levels, and the NPCA (National Paint and Coating Association) standard is used to classify 1 and 0 health levels.

[0064] Table 1

[0065]

[0066]

[0067] Among them, the flammability grade N F It can be determined from the following Table 2. The flammability of transported hazardous chemicals is the basis for classification. Whether it is flammable is related to the form and condition of the goods and is an inherent attribute.

[0068] Table 2

[0069]

[0070] Among them, the chemical reactivity level N R It can be determined from the following Table 3. Among them, the value of the reactivity level of the transported hazardous chemical material, mixture or compound can be determined according to the degree of instability of the substance under ambient temperature conditions.

[0071] Among them, the special hazard level N S It can be determined from the following Table 4. The special hazards of hazardous chemicals mainly refer to their reactivity or oxidation properties when in contact with water, and special attention should be paid during transportation.

[0072] Table 3

[0073]

[0074]

[0075] Table 4

[0076] grade Explanation 2 It belongs to the oxidant class and is very easy to oxidize, remove hydrogen from other components, or absorb negative electrons 2 Reacts with water and releases energy quickly 4 Oxidants, react violently with water

[0077] For transport volume risk level F Q The transportation volume risk level can be determined according to the transportation volume and the preset transportation volume classification. The preset transportation volume classification can be shown in Table 5 below.

[0078] Table 5

[0079]

[0080] According to the types of hazardous chemicals, the transportation volume and the above Tables 1 to 5, the health hazard level, flammability level, chemical reactivity level, special hazard level and transportation volume risk level corresponding to the types of hazardous chemicals are determined. Then, the hazardous chemical risk index RI is obtained according to the following formula (1).

[0081]

[0082] Among them, F Q is the risk level of the transport volume, NH is the health hazard level, N F is the flammability grade, N R is the chemical reactivity level, N S The special hazard level.

[0083] In step 103, the determined active safety prevention risk index is determined by the number of warnings of each risk indicator in the vehicle status warning, the driver's driving behavior warning, and the vehicle management warning. The number of warnings of each risk indicator in the vehicle status warning and the driver's driving behavior warning can be obtained based on existing active safety equipment (e.g., in-vehicle cameras, out-of-vehicle cameras, various sensors, etc.).

[0084] The active safety prevention risk index α is obtained according to the following formula (2).

[0085]

[0086] Among them, w i is the preset weight corresponding to the i-th risk indicator, q i is the number of real-time warnings corresponding to the i-th risk indicator, Q i is the number of historical warnings corresponding to the ith risk indicator, and n is the number of risk indicators, which is the total number of risk indicators in vehicle status warning, driver driving behavior warning, and vehicle management warning. In addition, the number of historical warnings can be the number of warnings for the corresponding risk indicator in the historical data within a set time period, for example, the number of monthly warnings for the risk indicator in the previous month.

[0087] For the preset weight corresponding to each risk indicator, the hierarchical analysis method can be used to determine the preset weight corresponding to each risk indicator in the three types of vehicle risk warnings: vehicle status warning, driver driving behavior warning and vehicle management warning.

[0088] First, construct a judgment matrix corresponding to each type of vehicle risk warning, that is, construct judgment matrices corresponding to vehicle status warning, driver driving behavior warning and vehicle management warning respectively. Among them, the judgment matrix includes preset values ​​for importance comparison between risk indicators belonging to the same type of vehicle risk warning. Use the expert scoring method to determine the importance (i.e., risk level) of each factor (risk indicator) in each type of vehicle risk warning, divide the risk level into five levels, and after determining the risk level of the risk indicator in each type of vehicle risk warning, the above judgment matrix can be constructed. Take the judgment matrix corresponding to a certain type of vehicle risk warning as an example, such as Figure 2 As shown, it means that relative to the vehicle risk warning A, the risk indicator B i Relative to risk indicator B jIn addition, Figure 2 The judgment matrix shown has the following properties:

[0089] Among them, the preset values ​​of importance comparison in the judgment matrix corresponding to the above three types of vehicle risk warnings can all be referred to as shown in Table 6.

[0090] Table 6

[0091] Importance comparison preset value meaning 1 The two factors are equally important. 3 Comparing the two factors, one is slightly more important than the other 5 When comparing two factors, one is obviously more important than the other. 7 When comparing two factors, one is more important than the other. 9 When comparing two factors, one is extremely more important than the other. 2、4、6、8 When two factors are compared and are between the above two adjacent levels, the median value is taken.

[0092] Refer to Table 6 and Figure 2 The method shown can construct the judgment matrix corresponding to each type of vehicle risk warning. For the above three types of vehicle risk warnings, three judgment matrices corresponding to the three types of vehicle risk warnings can be obtained, and the preset weights corresponding to the risk indicators in each type of vehicle risk warning can be obtained by the following method:

[0093] according to The normalized results of the elements in the judgment matrix corresponding to the risk warning of the a-th vehicle are obtained, where W aij is the risk indicator W for the risk warning of the a-th type of vehicle ai Relative to the risk indicator W aj The importance of compared to the preset value, W aij The normalized result of , n is the number of risk indicators belonging to the risk warning of the a-th type of vehicle. Then, according to Get the risk index W belonging to the risk warning of the a-th type of vehicle ai The corresponding preset weight.

[0094] In order to verify the accuracy and credibility of the preset weights, the consistency of the judgment matrix assessment results corresponding to each type of vehicle risk warning is checked before calculating the active safety prevention risk index. To this end, the random consistency ratio C is used. R Test method. According to the calculation formula C R =CI / RI, consistency test index CI = (λmax-n) / (n-1), n ​​is the order of the judgment matrix, λmax is the maximum characteristic root of the judgment matrix. RI is introduced as the average random consistency index, and the RI values ​​corresponding to the 1st to 9th order judgment matrices are 0, 0, 0.58, 0.90, 1.12, 1.24, 1.32, 1.41, and 1.45 respectively. Among them, the RI value of the 1st and 2nd order judgment matrices is 0, which is only formal. The 1st and 2nd order judgment matrices are always consistent. When n>2, the consistency test can be used C R To test. R <0.1, we believe that the judgment matrix under test has satisfactory consistency. RWhen >0.1, it means that the consistency test has not passed, and the judgment matrix that has not passed the consistency test needs to be adjusted and recalculated, for example, adjusting the importance comparison preset value in the judgment matrix. Then recalculate the preset weight, and then check the consistency of the judgment matrix again until the consistency test of the judgment matrix passes.

[0095] The preset weights corresponding to the risk indicators in the above three types of vehicle risk warnings are uniformly managed and substituted into formula (2). When substituting into formula (2), there is no need to distinguish which type of vehicle risk warning the risk indicator corresponding to the preset weight belongs to.

[0096] In step 104, when the driving area factor in the environmental impact factor corresponding to the real-time driving area is obtained according to the preset map and the real-time driving area, since the driving area factor includes the influence of the road state and the influence of the sensitive area, the road curvature coefficient di1, the road slope coefficient di2, the lane coefficient di3, the special road section coefficient di4 and the sensitive area influence coefficient Fd corresponding to the real-time driving area can be determined based on the position of the real-time driving area on the preset map based on the vehicle positioning technology and the map geographic information technology. The following table 7 shows the basis for determining the road curvature coefficient di1, the road slope coefficient di2, the lane coefficient di3 and the special road section coefficient di4.

[0097] Among them, the sensitive area impact coefficient Fd depends on the area range with the vehicle as the center and the distance threshold as the radius, and identifies the densely populated areas, ecological lakes and rivers in different areas within the area. The basis for determining the sensitive area impact coefficient is shown in Table 8. Among them, when the above-mentioned sensitive areas exist in the area range with a radius of less than 500 meters with the vehicle as the center, the sensitive area impact coefficient is 4, and the others are deduced accordingly.

[0098] Table 7

[0099]

[0100] Table 8

[0101] coefficient Distance threshold / m 4 <500 3 500-1500 2 1501-5000 1 5001-10000 0 >10000

[0102] After obtaining the above-mentioned road curvature coefficient, road slope coefficient, lane coefficient, special section coefficient and sensitive area influence coefficient, the driving area factor d in the environmental influence factor corresponding to the real-time driving area is obtained according to d=di1*di2*di3*di4*Fh.

[0103] In step 104, when the meteorological influence factor in the environmental influence factor corresponding to the real-time driving area is obtained according to the real-time weather and the preset climate conversion relationship, severe weather conditions such as heavy rain, fog, ice and snow may cause slippery roads, unclear vision and other situations and lead to traffic accidents. High temperature weather is likely to have a significant impact on the storage and transportation conditions of dangerous goods. The meteorological influence factor is determined by weather forecasting good weather, rainy and foggy weather, and ice and snow weather. Specifically, in the preset climate conversion relationship, as shown in Table 9 below, the meteorological influence factor c corresponding to the real-time weather is found.

[0104] Table 9

[0105] Real-time weather Meteorological influence factors Good weather 1.0 Rainy and foggy weather 1.5 Snow and ice weather 2.5

[0106] Through the above steps 102-105, the hazardous chemicals risk index RI, the active safety prevention risk index α, the environmental impact factor d, and the meteorological impact factor c are obtained. Then, the environmental impact factor h can be obtained by d*c=h, and then the real-time risk index R corresponding to the real-time risk of the hazardous chemicals transport vehicle can be obtained according to R=(RI+α)*h.

[0107] Through the embodiments of the present invention, an organic combination of the characteristics of hazardous chemicals themselves, vehicle status warnings, driver driving behavior warnings, vehicle management warnings, environmental influencing factors and weather influencing factors is achieved, and the real-time risks of hazardous chemical transport vehicles can be evaluated in real time, so as to provide a safety management basis for the company to which the vehicle belongs, eliminate safety hazards in a timely manner, and ensure the safety of hazardous chemical transportation.

[0108] Embodiment 2

[0109] After obtaining the real-time risk index corresponding to the real-time risk of the hazardous chemicals transport vehicle in the first embodiment, the risk level corresponding to the real-time risk index can also be determined according to the risk index range corresponding to the preset risk level. Since the risk index roughly obeys the normal distribution, the confidence interval method can be used to divide the risk index into the value range of five preset risk levels of low risk, general risk, medium risk, higher risk, and high risk. For example, the risk index is divided into the confidence intervals [0,0.2) with a confidence level of 0.8 (1-0.2) and 0.4 (1-0.6) [0.2,0.4) , [0.4,0.6) , [0.6,0.8) , [0.8,1.0], which correspond to the five preset risk levels of low risk, general risk, medium risk, higher risk, and high risk. After obtaining the real-time risk index corresponding to the real-time risk, the risk level corresponding to the real-time risk index is determined from the risk index range corresponding to the preset risk level in the above confidence interval. Then, determine whether the risk level is higher than the level threshold. If higher, the user of the hazardous chemicals transportation vehicle is prompted. For example, the enterprise to which the hazardous chemicals vehicle belongs is prompted that the risk level of the vehicle is high and hidden dangers should be eliminated in time to eliminate hazardous chemicals transportation accidents in the bud to ensure the safety of hazardous chemicals transportation.

[0110] Embodiment 3

[0111] Figure 3 Schematic diagram of a risk dynamic early warning assessment device for hazardous chemicals transport vehicles provided by an embodiment of the present invention. Figure 3 As shown, the device is applied to a server platform, and the device 30 includes: an acquisition unit 31, which is used to obtain the type of hazardous chemicals transported by the hazardous chemicals transport vehicle, the transportation volume, the warning data corresponding to the risk index in the vehicle risk warning of the hazardous chemicals transport vehicle, and the environmental information of the real-time driving area; a hazardous chemicals risk determination unit 32, which is used to determine the hazardous chemicals risk index according to the type of hazardous chemicals, the transportation volume, the preset hazardous chemical hazard level and the preset transportation volume classification; an active safety prevention risk determination unit 33, which is used to determine the active safety prevention risk index according to the warning data corresponding to the risk index and the preset weight; an environmental impact determination unit 34, which is used to obtain the environmental impact factor corresponding to the real-time driving area according to a preset map, the environmental information of the real-time driving area and the preset climate conversion relationship; an evaluation unit 35, which is used to evaluate the real-time risk of the hazardous chemicals transport vehicle according to the hazardous chemicals risk index, the active safety prevention risk index and the environmental impact factor.

[0112] Furthermore, the hazardous chemicals risk determination unit is further used to determine the health hazard level, flammability level, chemical reactivity level and special hazard level corresponding to the hazardous chemicals type according to the hazardous chemicals type and the preset hazardous chemicals hazard level; determine the transportation volume risk level according to the transportation volume and the preset transportation volume classification; Get the risk index of hazardous chemicals, where RI is the risk index of hazardous chemicals, F Q is the risk level of the transport volume, N H is the health hazard level, N F is the flammability grade, N R is the chemical reactivity level, N S The special hazard level.

[0113] Furthermore, the warning data includes the number of historical warnings and the number of real-time warnings, and the active safety prevention risk determination unit is also used to determine the risk of The active safety prevention risk index is obtained, where α is the active safety prevention risk index, and w i is the preset weight corresponding to the i-th risk indicator, q i is the number of real-time warnings corresponding to the i-th risk indicator, Q i is the number of historical warnings corresponding to the ith risk indicator, and n is the number of risk indicators.

[0114] Furthermore, the vehicle risk warning includes vehicle status warning, driver driving behavior warning and vehicle management warning, such as Figure 4 As shown, the device further includes: a weight determination unit 36, which is used to determine the preset weight corresponding to the risk indicator in each type of vehicle risk warning through a hierarchical analysis method.

[0115] Furthermore, the weight determination unit is further used to obtain a judgment matrix corresponding to each type of vehicle risk warning, wherein the judgment matrix includes a preset value for importance comparison between risk indicators belonging to the same type of vehicle risk warning; The normalized results of the elements in the judgment matrix corresponding to the risk warning of the a-th vehicle are obtained, where W aij is the risk indicator W for the risk warning of the a-th type of vehicle ai Relative to the risk indicator W aj The importance of compared to the preset value, W aij The normalized result of n is the number of risk indicators belonging to the risk warning of the a-th type of vehicle; according to Get the risk index W belonging to the risk warning of the a-th type of vehicle ai The corresponding preset weight.

[0116] Furthermore, the environmental information includes real-time weather corresponding to the real-time driving area, and the environmental impact determination unit is also used to obtain the driving area factor in the environmental impact factor corresponding to the real-time driving area according to the preset map and the implemented real-time driving area; and obtain the meteorological impact factor in the environmental impact factor corresponding to the real-time driving area according to the real-time weather and a preset climate conversion relationship.

[0117] Furthermore, the environmental impact determination unit is also used to determine the road curvature coefficient, road slope coefficient, lane coefficient, special road section coefficient and sensitive area influence coefficient corresponding to the real-time driving area according to the position of the real-time driving area on the preset map; and determine the product of the road curvature coefficient, road slope coefficient, lane coefficient, special road section coefficient and sensitive area influence coefficient as the driving area factor in the environmental impact factor corresponding to the real-time driving area.

[0118] Furthermore, the environmental impact determination unit is further used to find the meteorological impact factor corresponding to the real-time weather in the preset climate conversion relationship.

[0119] Furthermore, the evaluation unit is also used to obtain a real-time risk index corresponding to the real-time risk of the hazardous chemicals transport vehicle according to R=(RI+α)*h, wherein R is the real-time risk index, RI is the hazardous chemicals risk index, α is the active safety prevention risk index, and h is the environmental impact factor, wherein h=d*c, d is the driving area factor, and c is the meteorological impact factor.

[0120] Furthermore, the evaluation unit is also used to determine the risk level corresponding to the real-time risk index according to the risk index range corresponding to the preset risk level; when the risk level is higher than the level threshold, the user to whom the hazardous chemicals transport vehicle belongs is prompted.

[0121] The embodiment of the present invention can evaluate the real-time risk of the hazardous chemicals transport vehicle in real time by obtaining the types and transportation volume of hazardous chemicals transported by the hazardous chemicals transport vehicle, the number of historical warnings and the number of real-time warnings corresponding to the risk indicators in the vehicle risk warning of the hazardous chemicals transport vehicle, the real-time driving area and the real-time weather corresponding to the real-time driving area, thereby realizing dynamic management of high-risk vehicles by the enterprise.

[0122] The specific implementation process of the device is subject to the implementation process of the above-mentioned risk dynamic early warning assessment method for hazardous chemicals transportation vehicles.

[0123] Embodiment 4

[0124] Correspondingly, an embodiment of the present invention also provides a machine-readable storage medium, on which instructions are stored, and the instructions are used to enable a machine to execute the risk dynamic warning assessment method for hazardous chemicals transport vehicles as described in embodiments one to two above.

[0125] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0126] In a typical configuration, the device includes one or more processors (CPU), memory and bus. The device may also include input / output interface, network interface and the like.

[0127] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM, and the memory includes at least one memory chip. The memory is an example of a computer-readable medium.

[0128] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0129] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0130] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0131] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. A risk dynamic early warning assessment method for hazardous chemicals transportation vehicles, characterized in that: The method comprises: Obtain the types and transportation volume of hazardous chemicals transported by the hazardous chemicals transport vehicle, warning data corresponding to the risk indicators in the vehicle risk warning of the hazardous chemicals transport vehicle, and environmental information of the real-time driving area; Determine the hazardous chemicals risk index based on the hazardous chemicals type, the transportation volume, the preset hazardous chemicals hazard level and the preset transportation volume classification, including: According to the hazardous chemical type and the preset hazardous chemical hazard level, determine the health hazard level, flammability level, chemical reactivity level and special hazard level corresponding to the hazardous chemical type; Determining a transportation volume risk level according to the transportation volume and the preset transportation volume level; according to Get the risk index of hazardous chemicals, where RI is the risk index of hazardous chemicals, F Q is the risk level of the transport volume, N H is the health hazard level, N F is the flammability grade, N R is the chemical reactivity level, N S is the level of special hazard; Determine the active safety prevention risk index according to the warning data corresponding to the risk indicator and the preset weight; According to a preset map, environmental information of the real-time driving area and a preset climate conversion relationship, an environmental impact factor corresponding to the real-time driving area is obtained, wherein the environmental information includes the real-time weather corresponding to the real-time driving area, including: According to the preset map and the real-time driving area, obtaining a driving area factor in the environmental impact factor corresponding to the real-time driving area; According to the real-time weather and the preset climate conversion relationship, a meteorological influence factor among the environmental influence factors corresponding to the real-time driving area is obtained; According to the hazardous chemicals risk index, the active safety prevention risk index and the environmental impact factor, the real-time risk of the hazardous chemicals transport vehicle is evaluated, including: According to R=(RI+α)*h, the real-time risk index corresponding to the real-time risk of the hazardous chemicals transport vehicle is obtained, wherein R is the real-time risk index, RI is the hazardous chemicals risk index, α is the active safety prevention risk index, and h is the environmental impact factor, wherein h=d*c, d is the driving area factor, and c is the meteorological impact factor. The warning data includes the number of historical warnings and the number of real-time warnings. The determining of the active safety prevention risk index according to the warning data corresponding to the risk indicator and the preset weight includes: according to The active safety prevention risk index is obtained, where α is the active safety prevention risk index, and w i is the preset weight corresponding to the i-th risk indicator, q i is the number of real-time warnings corresponding to the i-th risk indicator, Q i is the number of historical warnings corresponding to the ith risk indicator, n is the number of risk indicators, The vehicle risk warning includes vehicle status warning, driver driving behavior warning and vehicle management warning. The method also includes: By using the analytic hierarchy process, the preset weights corresponding to the risk indicators in each type of vehicle risk warning are determined, including: Obtaining a judgment matrix corresponding to each type of vehicle risk warning, wherein the judgment matrix includes preset values ​​for importance comparison between risk indicators belonging to the same type of vehicle risk warning; according to The normalized results of the elements in the judgment matrix corresponding to the risk warning of the a-th vehicle are obtained, where W aij is the risk indicator W for the risk warning of the a-th type of vehicle ai Relative to the risk indicator W aj The importance of compared to the preset value, W aij The normalized result of , n is the number of risk indicators belonging to the risk warning of the a-th type of vehicle; according to Get the risk index W belonging to the risk warning of the a-th type of vehicle ai The corresponding preset weight.

2. The method for dynamic early warning assessment of risk of hazardous chemicals transportation vehicles according to claim 1 is characterized in that: The step of obtaining the driving area factor in the environmental impact factor corresponding to the real-time driving area according to the preset map and the real-time driving area includes: According to the position of the real-time driving area on the preset map, determining a road curvature coefficient, a road slope coefficient, a lane coefficient, a special road section coefficient, and a sensitive area influence coefficient corresponding to the real-time driving area; The product of the road curvature coefficient, the road slope coefficient, the lane coefficient, the special road section coefficient and the sensitive area influence coefficient is determined as the driving area factor in the environmental influence factor corresponding to the real-time driving area.

3. The method for dynamic early warning assessment of risk of hazardous chemicals transportation vehicles according to claim 1 is characterized in that: The meteorological influence factor among the environmental influence factors corresponding to the real-time driving area obtained according to the real-time weather and the preset climate conversion relationship includes: In the preset climate conversion relationship, the meteorological influencing factor corresponding to the real-time weather is found.

4. The method for dynamic early warning assessment of risk of hazardous chemicals transportation vehicles according to claim 1 is characterized in that: The real-time risk assessment of the hazardous chemicals transport vehicle includes: Determine the risk level corresponding to the real-time risk index according to the risk index range corresponding to the preset risk level; When the risk level is higher than the level threshold, the user to whom the hazardous chemicals transportation vehicle belongs is prompted.

5. A risk dynamic early warning assessment device for hazardous chemicals transport vehicles, characterized in that: The device comprises: An acquisition unit, used to acquire the types and transportation volume of hazardous chemicals transported by the hazardous chemicals transport vehicle, warning data corresponding to the risk indicators in the vehicle risk warning of the hazardous chemicals transport vehicle, and environmental information of the real-time driving area; The hazardous chemicals risk determination unit is used to determine the hazardous chemicals risk index according to the hazardous chemicals type, the transportation volume, the preset hazardous chemicals hazard level and the preset transportation volume classification, The hazardous chemicals risk determination unit is also used to determine the health hazard level, flammability level, chemical reactivity level and special hazard level corresponding to the hazardous chemicals type according to the hazardous chemicals type and the preset hazardous chemicals hazard level; determine the transportation volume risk level according to the transportation volume and the preset transportation volume classification; Get the risk index of hazardous chemicals, where RI is the risk index of hazardous chemicals, F Q is the risk level of the transport volume, N H is the health hazard level, N F is the flammability grade, N R is the chemical reactivity level, N S is the level of special hazard; An active safety prevention risk determination unit, used to determine an active safety prevention risk index according to the warning data corresponding to the risk indicator and a preset weight; The environmental impact determination unit is used to obtain the environmental impact factor corresponding to the real-time driving area according to a preset map, environmental information of the real-time driving area and a preset climate conversion relationship, wherein the environmental information includes the real-time weather corresponding to the real-time driving area, including: According to the preset map and the real-time driving area, obtaining a driving area factor in the environmental impact factor corresponding to the real-time driving area; According to the real-time weather and the preset climate conversion relationship, a meteorological influence factor among the environmental influence factors corresponding to the real-time driving area is obtained; an evaluation unit, configured to evaluate the real-time risk of the hazardous chemical transport vehicle according to the hazardous chemical risk index, the active safety prevention risk index, and the environmental impact factor, The evaluation unit is further used to obtain a real-time risk index corresponding to the real-time risk of the hazardous chemical transport vehicle according to R=(RI+α)*h, wherein R is the real-time risk index, RI is the hazardous chemical risk index, α is the active safety prevention risk index, and h is the environmental impact factor, wherein h=d*c, d is the driving area factor, and c is the meteorological impact factor. The warning data includes the number of historical warnings and the number of real-time warnings. The active safety prevention risk determination unit is also used to determine the number of historical warnings and the number of real-time warnings. The active safety prevention risk index is obtained, where α is the active safety prevention risk index, and w i is the preset weight corresponding to the i-th risk indicator, q i is the number of real-time warnings corresponding to the i-th risk indicator, Q i is the number of historical warnings corresponding to the ith risk indicator, n is the number of risk indicators, The vehicle risk warning includes vehicle status warning, driver driving behavior warning and vehicle management warning, and the device also includes: The weight determination unit is used to determine the preset weight corresponding to the risk indicator in each type of vehicle risk warning through the hierarchical analysis method, The weight determination unit is also used to obtain a judgment matrix corresponding to each type of vehicle risk warning, wherein the judgment matrix includes a preset value for comparing the importance of risk indicators belonging to the same type of vehicle risk warning; The normalized results of the elements in the judgment matrix corresponding to the risk warning of the a-th vehicle are obtained, where W aij is the risk indicator W for the risk warning of the a-th type of vehicle ai Relative to the risk indicator W aj The importance of compared to the preset value, W aij The normalized result of n is the number of risk indicators belonging to the risk warning of the a-th type of vehicle; according to Get the risk index W belonging to the risk warning of the a-th type of vehicle ai The corresponding preset weight.

6. The risk dynamic early warning assessment device for hazardous chemicals transport vehicles according to claim 5 is characterized in that: The environmental impact determination unit is also used to determine the road curvature coefficient, road slope coefficient, lane coefficient, special road section coefficient and sensitive area influence coefficient corresponding to the real-time driving area according to the position of the real-time driving area on the preset map; and determine the product of the road curvature coefficient, road slope coefficient, lane coefficient, special road section coefficient and sensitive area influence coefficient as the driving area factor in the environmental impact factor corresponding to the real-time driving area.

7. The risk dynamic early warning assessment device for hazardous chemicals transport vehicles according to claim 5 is characterized in that: The environmental impact determination unit is further configured to search for a meteorological impact factor corresponding to the real-time weather in the preset climate conversion relationship.

8. A machine-readable storage medium having instructions stored thereon, the instructions being used to enable a machine to execute the risk dynamic early warning assessment method for hazardous chemicals transport vehicles as described in any one of claims 1 to 4.

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