64 results about "Hazard evaluation" patented technology

A robot includes a hazard sensor, a locomotor, and a system controller. The robot senses a hazard intensity at a location of the robot, moves to a new location in response to the hazard intensity, and autonomously repeats the sensing and moving to determine multiple hazard levels at multiple locations. The robot may also include a communicator to communicate the multiple hazard levels to a remote controller. The remote controller includes a communicator for sending user commands to the robot and receiving the hazard levels from the robot. A graphical user interface displays an environment map of the environment proximate the robot and a scale for indicating a hazard intensity. A hazard indicator corresponds to a robot position in the environment map and graphically indicates the hazard intensity at the robot position relative to the scale.

A system and method for providing hazardous incident decision support and training includes a user interface component that receives situation definition data, a hazard assessment component and a decision aid. Decision support advice and decision prompts are presented by the system in response to the situation definition interface and hazard assessment. The hazard assessment and expert advice of the system are updated with elapsed time. In another embodiment of the present invention, graphical user interfaces are provided to display a set of menu entries wherein individual menu entries represent a hazardous incident characteristic. The user may select one or more of the menu entries to create a situation definition. Such definitions may be used, for example, to identify a hazardous agent based upon user-inputted signs and symptoms data.

The invention provides a determining method for polluted water bed mud environmental protection dredging depth, comprising analyzing and evaluating the releasing risk and ecological hazard risk of the pollutant at different layer side of the mud based on the vertical distribution of the pollutant in the bed mud by researching the relation of the releasing of bed mud pollutant nitrogen, phosphor or the like and the corresponding pollutant content and the ecological hazard evaluation corresponding with the content of the bed mud pollutant containing heavy metal; and determining the bed mud dredging depth based on the divided corresponding risk grade. After dredging, the anticipated release rate of the key pollutant such as nitrogen, phosphor at the new surface layer of bed mud-hydrosphere achieves or exceeds a release intensity threshold and the latent ecological hazard index of the heavy metal at the new surface layer of bed mud achieves or exceeds a hazard threshold, therefore the basis of the dredging depth is determined.

The invention relates to a debris flow yield stress and maximum accumulation thickness calculation method, and belongs to the field of debris flow prevention and control engineering and water conservancy project. The debris flow yield stress and maximum accumulation thickness calculation method has the technical scheme that the equivalent clay mineral percent P in the debris flow body is determined according to the existing debris flow survey, and the equivalent clay mineral percent P in the flow area is set to be unchanged; according to the debris flow volume-weight value of the debris flow in the current time at different frequencies or the debris flow volume-weight value in the adjacent flow areas, the debris flow volume concentration value C0 is obtained through calculation; then, according to the particle grading values Cc and Dv, the equivalent clay mineral percent P calculated in the former step is used for calculation to obtain the debris flow yield stress tao and the maximum accumulation thickness H at different frequencies or in the adjacent flow areas. The method provided by the invention has the advantages that the yield stress and the maximum accumulation thickness of the debris flow occurring at the different frequency or in the adjacent flow areas can be more accurately calculated, and effective technical support is provided for debris flow hazard evaluation and prevention.

The invention discloses a method for evaluating the hazard of land subsidence. The method comprises the following steps that different indexes are selected to form a land subsidence hazard evaluation index system, normalization processing is carried out on all the indexes, the hazard rating of each evaluation index is built according to expert knowledge, the hazard ratings of the evaluation indexes form a matrix V, an AHP is utilized for calculating subjective weight, an entropy weight formula of land subsidence hazard evaluation is built, the objective weight of each index is calculated through entropy weight, comprehensive weight is calculated based on the AHP and the entropy weight, a weighted standardized matrix of the evaluation indexes is constructed, a positive ideal solution and a negative ideal solution are determined, the relative close degree is calculated, and the hazard rating of the land subsidence is evaluated according to the relative close degree. The method has certain practical application value and universality.

The invention discloses an establishing method of a water body environment early warning system, comprising the following steps: an automatic monitor monitors a sewage outlet of a risk source in real time; automatic monitoring data is transmitted to a system by a network, and whether the sewage discharge is abnormal or not is judged by the system; if the discharge is abnormal, the automatic monitoring data and a water quality forecasting model are immediately transferred for forecasting the water quality of a downriver environment receptor, and the concentration of the receptor is returned to the system; a hazard evaluation to the receptor is carried out according to the self-nature of the receptor and the forecast concentration of a receptor infectant; and an accident hazard database is transferred to give out an emergency countermeasure for the accident hazard. Based on an information technology, the establishing method of a water body environment early warning system comprehensively applies modern high and new technology means such as a geographical information system, a network, a multimedia, and the like, utilizes a water quality forecasting technology and combines the modern environment risk management theory, thereby providing a running environment with high efficiency and strong practicability for the automated management of the quality of a water body and laying a solid foundation for realizing regional sustainable development.

The invention discloses an evaluation method of debris flow disaster hazard classification in glacier distribution areas, the method comprises the following steps:1) determining the index used for describing the conventional factors affecting the debris flow development, and classifying; 2) calculating the weight sum of the conventional impact factors of debris flow, and getting the debris flow hazard value under no impact of glacier, and classifying and partitioning; 3) analyzing the impact of glacier distribution and movements on debris flow development, determining the index for describing the glacier impact, and classifying; 4) determining the relative importance value of the glacier factors relative to the conventional factors; 5) calculating the weight sum of the conventional factors and the sum of the glacier impact factors multiply by the relative importance thereof, classifying, and completing the debris flow hazard of the glacier distribution area. The evaluation method of debris flow disaster hazard classification in glacier distribution areas provided is on the basis of the traditional debris flow hazard evaluation method for general area and superposes the glacier impact factors, which is applicable for classification of debris flow hazard evaluation in the glacier distribution areas.

The invention discloses a test method for the residual phthalate ester, including the steps that after a solid sample is decomposed into blocks which are immersed in the dummy body fluid, the transferring amount of the phthalate ester in the solid sample under the condition with the dummy body fluid can be obtained through the auxiliary lixiviation by water bath ultrasound, the purification and the enrichment of solid extraction columellas filled with multi-walled carbon nano-tubes, and the measurement by a gas mass spectroscopy; and meanwhile, after the solid sample is decomposed into blocks, the total content of the phthalate ester in the solid sample can be obtained through the extraction by an accelerating solvent extraction method, the purification and the enrichment of small solid extraction columns filled with multi-walled carbon nano-tubes, and the measurement by a gas mass spectroscopy. The invention has the advantages of less dosage of organic solvent, rapid extraction speed, less impurity interference, high sample recovery ratio, and the like. In addition, prefilled small solid extraction columns are made from the multi-walled carbon nano-tubes, thereby the enrichment effect of the phthalate ester in the dummy body fluid extract of samples to be tested can be greatly improved, and a phthalate ester hazard evaluation system can be better perfected according to the difference of the total residual quantity and the dissolved quantityof phthalate ester in the solid sample.

The invention provides a system for evaluating danger caused by geologic hazard to city underground gas network which relates to the gas network danger evaluating technique field. The system solves problem of unable processing evaluation according with detail geological condition and unable combining city geologic hazard with network risk evaluation existed in underground gas pipeline risk evaluation system. A city history geological data module of the system is used for providing geological data and geologic hazard type; a network figure data module is used for providing a figure data of the city underground gas network; a geological hazard dangerous area subarea module is used for dividing the city underground gas network; a geological hazard evaluating module is used for processing danger degree evaluating to the geological hazard dangerous subarea; a weighing adjustable module is used for processing weighing adjustment to the danger degree evaluating result; an evaluation recording module is used for recording the danger degree evaluation result; an input / output background manage module is used for transmitting data and instruction between the user and the module. The system is suitable for evaluating danger of geologic hazard to the gas network.

The invention provides an automatic driving expected function safety hazard assessment method based on zero-day loopholes, which comprises the following four steps of: 1, determining a zero-day vulnerability hazard map model of an expected function safety system; 2, simplifying a zero-day vulnerability model of the expected function security system, and constructing a hazard path threatening the expected function security; 3, respectively calculating hazard values SK and SUK of a known trigger event and an unknown trigger event through a calculation program based on the hazard path; and 4, calculating an expected function safety system safety value svs based on the dynamic weight scheme. Hazard assessment of expected function safety and zero-day vulnerability safety assessment are combined, a solution for improving the expected function safety is invented based on an information safety solution, and the expected function safety hazard detection rate of an advanced driving assistance system and an automatic driving system is improved.

The invention belongs to the field of regional landslide risk monitoring and evaluation, in particular to a multi-factor comprehensive measurement method of regional landslide disaster risk, comprising the following steps: (1) determining landslide risk evaluation index and socio-economic potential damage evaluation index; (2) determining the weights of the landslide hazard evaluation indexes andthe socio-economic potential damage evaluation indexes in the area to be evaluated; (3) determining the evaluation grade of landslide hazard and socio-economic potential damage in the area to be evaluated; (4) Determining the landslide risk grade of the area to be evaluated. The potential landslide hazard coefficient and potential landslide rate of unstable landslides are used to analyze and evaluate the regional landslide hazard degree. Using GDP per capita, population density, railway and highway density, building density, the socio-economic potential damage of regional landslides is analyzed and evaluated.

The invention provides a method for evaluating the damage loss rate of buildings under the action of landslide instability movement. The method comprehensively considers the action force of the landslide movement on the buildings after landslide instability occurs and the resistivity of the buildings under the action of landslide bodies, a spring deformation block analysis model of a landslide is built to analyze the movement process after landslide instability occurs, then the action force of the landslide on the buildings is determined and serves as the impact resistivity value of the buildings, then through calculation of interlamination yield shearing force of the impacted building framework structures, the impact resistivity value of the impacted buildings is determined, the specific value of the landslide hazard strength value and the impact resistivity value of the buildings serves as the damage loss rate value of the buildings, and the damage loss rate of the buildings under the action of landslide instability movement is determined; the whole analysis process is objective and reliable, can contribute to improvement of accuracy of landslide instability hazard evaluation, and the problem that the big error exists in landslide instability hazard evaluation conducted according to human experience is solved.

The invention discloses a method for evaluating the running accuracy of an electric energy meter, which specifically comprises the content of error stability evaluation, running reliability evaluation, potential hazard evaluation and other elements, and is characterized in that error stability evaluation comprises S1 fundamental error verification in a laboratory, S2 running error detection at the field and S3 the same batch error dispersibility; running reliability evaluation comprises S4 the same manufacturer batch return rate, S5 the same batch running failure rate and S6 the running time and environment; potential hazard evaluation comprises S7 family defects, S8 on detection for electric quantity abnormity and S9 online detection for clock abnormity; and other elements comprise S10 user reputation. The method disclosed by the invention classifies according to the elements such as the error stability, the running reliability and potential defects, combines maturely running information systems such as power utilization information acquisition, marketing service application and measurement production scheduling platform, selects ten state variables which can reflect the running accuracy and reliability degree of the electric energy meter, and can carry out accurate and reasonable evaluation on the running accuracy of the electric energy meter.

The invention discloses a method for measuring and calculating dynamic heat capacity of adiabatic reaction calorimetry samples. The method is provided with an adiabatic reaction calorimetry device with two-channel asymmetric sample pool structures, data of adiabatic condition reaction process and path offset reaction process can be measured by the adiabatic reaction calorimetry device and are processed by the aid of an energy-balance equation, and a specific heat capacity-temperature variation function of the samples close to real rules is acquired by the aid of constant approximation of an interpolation function and a dynamic estimation method of reactant concentration. According to the method, approximate heat capacity-temperature variation rules of the samples of the adiabatic reaction process can be acquired, key index-reaction heat calculated according to the heat capacity-temperature variation rules is closer to real conditions, and more accurate reference is provided for heat hazard evaluation of reactants.

The invention discloses an automatic indoor air regulation and control system. The automatic indoor air regulation and control system comprises a sensor information collection module, a hazard evaluation module and an automatic regulation module, wherein the sensor information collection module is used for collecting formaldehyde concentration information, PM2.5 concentration information, carbon oxide gas concentration information, hydrogen sulfide concentration information, temperature information and humidity information in a room; the hazard evaluation module is used for determining the hazard level of indoor air through a fuzzy comprehensive evaluation method; and the automatic regulation module is used for regulating an air conditioner, a humidifier and an air purifier to the corresponding threshold ranges when the hazard level reaches a first level threshold. The invention further discloses an automatic indoor air regulation and control method. By adoption of the automatic indoorair regulation control system and method, the quality of the indoor air can be comprehensively evaluated, the indoor air is automatically regulated and controlled according to the evaluated hazard level, and thus, the indoor air regulation and control accuracy is improved.

The invention relates to an unexpected biological event field hazard evaluation simulation system, which comprises an information receiving module, a hazard preliminary evaluation module, a GPS module, an information storage module, a hazard calculation module, and a hazard display module. The information receiving module is used for receiving biological hazard data of a hazard field; the hazard preliminary evaluation module is used for calculating the maximum hazard depth, hazard width and hazard area of pathogenic microorganisms; the GPS module is used for positioning a geographical pathogenic microorganism-polluted area on a national administrative map; the information storage module is used for storing the national grid population data; the hazard calculation module is used for transferring the grid population data inside the geographical pathogenic microorganism-polluted area from the information storage module and calculating the number of infected people and ill and dead people after infection; and the hazard display module displays the geographical pathogenic microorganism-polluted positioned by the GPS module and the number of infected people and ill and dead people after infection calculated by the hazard calculation module on the national administrative map. The unexpected biological event field hazard evaluation simulation system can be widely applied to emergency treatment of a biological hazard attack event.

The invention discloses a vehicle expected function hazard assessment method and a device, equipment and a storage medium, and the method comprises the steps: obtaining vehicle safety information of ato-be-assessed vehicle, carrying out the analysis according to an expected safety triggering condition, obtaining an expected function safety triggering event, and carrying out the analysis through apreset hazard event recognition assessment model; obtaining vehicle hazard information; and classifying the vehicle hazard information according to the vehicle safety integrity level to determine thehazard level of the vehicle hazard information. The expected function safety trigger event is analyzed through the preset hazard event recognition and evaluation model, so that the vehicle hazard information is obtained; classifying the vehicle hazard information according to the vehicle safety integrity level; and determining the hazard level of the vehicle hazard information according to the classification result. Compared with the prior art that the data accuracy is poor due to the fact that the expected function modeling mode is single, the method achieves scientific modeling of the automatic driving expected function, and therefore the evaluation accuracy is improved.

The invention relates to a coal seam roof water inrush risk assessment method, comprising the following steps: setting at least one risk assessment domain, obtaining characteristic parameters of coalseam and water-filled aquifer; establishing the static inrush water distribution model, water-filled aquifer floor elevation distribution model, water conduction fracture zone elevation distribution model, coal seam roof elevation distribution model and water-filled intensity distribution model. The conduction model is established, and the spatial analysis is carried out by using the conduction model, the unit static inrush water distribution model and the water filling intensity distribution model, and the hazard evaluation model of the evaluation domain is established; Hazard zoning evaluation is performed on the zoning units in the hazard evaluation model. The present invention provides a feasible technical scheme for quantitative evaluation of roof hazard of coal mine, evaluates coal seams by hazard zoning, integrates evaluation results, intuitively reflects hazard grades in coal seam evaluation domain, and provides data support for coal mine design and safety production.

The invention relates to an emergency operation method of a chemical accident, in particular to an emergency operation system of high-risk chemicals, belonging to the technical field of chemical defense. The system of the invention comprises a toxic and harmful substance monitoring analyzer, a weather observation instrument, a data transmission module, a GIS positioning navigation module, a source intensity mode module, a hazard forecast module, a diffusion mode module, a hazard early warning module, a hazard index system, a data conversion engine, a GIS analysis and exhibition module and an emergency command module. In the system of the invention, chemical hazard early warning levels are determined according to a hazard assessment result and the hazard index system; through the data conversion engine, the hazard assessment and GIS are integrated to build the emergency operation system based on a GIS platform; and according to early warning information, emergency control schemes are determined to achieve effective control on the chemical hazard.

The invention provides a quantitative evaluation method for a risk of electric welder pneumoconiosis caused by electrowelding fume occupation exposure.The method comprises the steps that risk identification, exposure evaluation, dosage-reaction evaluation and risk characterization are adopted; a statistical distribution test is performed through SPSS software on the basis of on-site detection data of the electrowelding fume concentration to obtain probability distribution of the received fume concentration; a logistic model is selected to serve as a dosage-reaction model of the electric welder pneumoconiosis, model parameters are determined through population epidemiology data, and a dosage-reaction model used for evaluating the electric welder pneumoconiosis caused by electrowelding fume occupation exposure is obtained; Monte Carlo simulation of a carcinogenic risk value is performed by adopting crystal ball software, and the risk of the electric welder pneumoconiosis caused due to the fact that a crowd works in the electrowelding fume exposure environment for a long term is characterized.The quantitative evaluation method for the risk of the electric welder pneumoconiosis caused by electrowelding fume occupation exposure is completely presented for the first time and applied to occupational hazard evaluation of building projects and occupational hazard risk management of the electric welder pneumoconiosis.

The invention relates to a simulation detection system for explosion of an underground storage gasoline tank in an automobile gasoline filling station. The simulation system comprises a simulation device and a detection device. The simulation device comprises the underground storage gasoline tank, an oiling pipeline for inputting oil gas, a liquid level meter and an igniter, wherein the oiling pipeline is communicated with the underground storage gasoline tank; and the liquid level meter and the igniter are disposed in the underground storage gasoline tank. The detection device comprises a concentration monitor for monitoring oil gas concentration, a first pressure sensor and a first temperature sensor, wherein the concentration monitor is disposed in the underground storage gasoline tank; and the first pressure sensor and the first temperature sensor are disposed on the tank wall of the underground storage gasoline tank. The simulation detection system for explosion of the underground storage gasoline tank in the automobile gasoline filling station can simulate and monitor influence data of explosion accidents of the underground storage gasoline tank to surroundings safely, comprehensively and effectively, and provide beneficial support for hazard evaluation of automobile gasoline filling station accidents, and the like.

The invention provides a hazardous chemical transport hazard predicting and controlling system. The adjoint mode provided by the hazardous chemical transport hazard predicting and controlling system is set up on the basis of a CAMx diffusion mode and is more suitable to practical diffusion by considering affection of meteorological factors and topographic factors; starting from protective targets, the adjoint mode only needs to solve adjoint equation once to acquire risk value, and time for solving the adjoint equation is equal to time for solving diffusion equation; prediction of hazardous chemical transport coming risks is realized by application of the numerical diffusion mode is realized, practical conditions of transport objects, transport time and transport lines are comprehensively considered, elaborate risk field distribution during practical transport is obtained, blindness of emergency preparation is avoided, and a real-time hazard evaluation mode matched with actual topography, weather, environments and the like is provided, so that hazard control during hazardous chemical transport accidents is more scientific and effective. Accordingly, hazard prediction results are more accurate, hazard prediction efficiency is higher, and hazard control policy is more scientific.

The invention provides a method for analyzing water logging in a building. The method mainly comprises the following steps: analyzing water logging in a building according to a deterministic theory; specification and analysis are carried out on a protection equipment list, water logging partition division, water logging source selection, a water logging source spread path analysis method and the like, finally, hazard evaluation of water logging in the nuclear island is formed, necessary protection measures are taken in combination with the hazard evaluation, and therefore it is guaranteed thatinternal facilities of the building cannot be damaged due to internal water logging. The water level analysis based on the deterministic theory is adopted, the specific flow data and the position information of the water source are obtained through analysis and calculation strictly according to the time that people do not intervene for 30 minutes, and therefore the water level information more conforming to the reality is obtained, and great significance is achieved for protection of equipment and safety of a power station.

A driver assist arrangement (1) is provided comprising a first yaw rate controller (7), a hazard evaluation unit (9) and a driver intention evaluation unit (13). The first yaw rate controller (7) is configured to control a yaw rate of the hosting vehicle (5), by comparing an expected yaw rate with an actual yaw rate and in response thereto selectively apply brakes of respective wheels of the host vehicle (5). The arrangement (1) further comprises a second yaw rate controller (15), configured to intervene in the control of the first yaw rate controller (7), in case the evaluated risk of an accident is above a threshold value and occurrence of an avoidance manoeuvre initiated by the driver (3) is detected. The present invention also relates to a vehicle (5) comprising a driver assist arrangement (1) and a method of assisting a driver (3) of a vehicle (5).

The invention provides an individual dose equivalent meter calibration new method. When deep personal dose equivalent Hp(10), superficial individual dose equivalent Hp(0.07) and eye crystal dose equivalent Hp(3) individual dose equivalent meter calibration is carried out, a reference dose point (RDP) of a calibrated dosimeter is selected as Hp(d) in a die body, that is, the calibration reference point is in the die body and is at a distance of d mm from the surface in a ray vertical incident direction; and irradiation distance between a standard radiation source center (or an X-ray tube focus) and the d place of the corresponding die body calibration reference points is determined. The new method, on one hand, accords with Hp(d) individual dose equivalent definitions regulated by related international standard (ISO 4037) and national standard (GB 12162) in China, and on the other hand, improves accuracy of individual dose equivalent monitoring and scientificity of occupational hazard evaluation of massive radiation workers.

A traffic engineering potential safety hazard assessment device comprises: a risk accident case library module, which is used for establishing an accident tree based on road construction risks by analyzing accident historical data; a construction division module which is used for dividing the road construction process into a plurality of construction sections and dividing each construction sectioninto a plurality of construction procedures, wherein the construction sections in the road construction process are sorted and numbered according to the construction sequence and are 1, 2,..., k,...,n, and n represents the total number of the construction sections of the engineering project; a potential safety hazard evaluation module which is used for evaluating the road construction risk basedon a fuzzy polymorphic Bayesian network; an input and display module which is used for inputting cases and displaying evaluation results; and a management server module which is used for data transmission, calculation, storage and display. The device improves the comprehensive evaluation of each construction risk factor, and enables the risk evaluation level of each construction risk factor to behigh in accuracy.

The invention discloses a testing device for monitoring submarine landslide mass transportation process, and a test method, and belongs to the technical field of the ocean engineering. Based on a critical shear stress starting condition, an equivalent simulation method is adopted, a testing device for monitoring the transportation of the submarine landslide body to the water environment is provided, and a test method for effectively testing and analyzing the characteristic parameters of the submarine landslide mass transportation process is provided according to the establishment and parameterconversion of an equivalent simulation relation and a test calibration relation. The testing device provided by the invention can monitor a change condition of the submarine landslide mass transportation process in real time, the parameters are convenient to obtain, and the data volume is rich; the test method is full in theory, convenient to popularize and beneficial to landslide hazard evaluation and engineering facility design work in ocean engineering; in addition, the method can be applied to the research of the mass transportation characteristics in the submarine landslide motion process and the research of the marine geological problems such as submarine sand waves, submarine sediment resuspension and the like.