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 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 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 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 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 provides a virtual evacuation evaluation method considering integrated hazards of fire gases, and belongs to the technical field of disaster prevention and disaster mitigation. The virtual evacuation evaluation method considering integrated hazards of fire gases includes the steps: establishing a fire gases integrated hazards evaluation model IHD (Integrated Hazards Dose) based on FED (fractional effective dose) which can evaluate toxicity and thermal damage of fire gases uniformly; according to a virtual evacuation path, establishing an evacuation path evaluation model IHDpath; and applying the IHDpath model to safety evaluation of the virtual evacuation path to prove availability of the virtual evacuation evaluation method considering integrated hazards of fire gases. The virtual evacuation evaluation method considering integrated hazards of fire gases provides an integrated hazards evaluation model for fire virtual evacuation training, and can be used for guiding people to perform reasonable path selection in the evacuation training at random.

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 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 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 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.