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Study On Mobile Emergency Platform For Sudden Environment Pollution Incident

Posted on:2015-10-31Degree:DoctorType:Dissertation
Country:ChinaCandidate:L F YangFull Text:PDF
GTID:1311330518988850Subject:Mechanical engineering
Abstract/Summary:PDF Full Text Request
China is in a period of accelerated development of industrialization, and the remote transportation of hazardous chemicals is becoming more and more.Due to road accident, sudden environmental pollution incident occurs frequently.For people and the environment, the incident is a huge threat to the safety of their life and property. But the function of the existing emergency vehicles usually is single and there are some problems: firstly, the site information cannot be collected more accurately and be transmitted more quickly; secondly,the emergency decision lacks of a scientific support; and thirdly, the specialized emergency treatment and disposal equipment is insufficient and the technology level is low. Therefore, the research of the key technologies for a mobile emergency platform, which is more fast and efficient and can generate an emergency response more comprehensive, holds important significance for the safety of industrial production and daily life. Under the support of the national high-tech R&D program of china (863 program) the development and the application of emergency technology for serious environmental pollution incident in coal chemical industry region (2008AA06A415), a comprehensive integration of the emergency mobile platform for the sudden environmental pollution incident is studied, which holds some functions as below: emergency monitoring, decision support command, and treatment and disposal. Moreover,the key of the emergency decision supported system and the emergency treatment and disposal systems are studied in paper.The paper proposes a comprehensive integrated approach for the development of a mobile emergency platform, and with this approach, an emergency platform is designed and developed. In this approach, with the combining of the expertise, knowledge and machine, the platform can leap from qualitative to quantitative. Under the guide of this approach, the paper does the function and structure design for the platform, and also establish the emergency command decision system and the emergency treatment and disposal system.Then, these two systems are integrated with the emergency communications equipment. For the emergency decision support part, it can realize the following functions: the monitoring, the collection and the transmission of the site information; the quick generating, evaluating and adjustment to the emergency plan; air pollution warning; emergency path planning; and collaborative decision-making and command functions for the accident site with the command center. For the emergency treatment and disposal part, it can realize the following functions: the neutralization- pumping and accommodating for the pollutants. This platform holds some characteristics, such as multifunction,intelligent, integration, rapid response and mobile and flexible?There has an uncertainty for the accident site and the characteristics of pollutants, so the corresponding emergency decision and the emergency treatment and disposal will have some differences. For this situation, a multi-method integration reasoning technique for the emergency plan is proposed. These methods include the reformed-analytic hierarchy process(R-AHP), the case-based reasoning (CBR) and the rule-based reasoning (RBR).With these methods been integrated into this technique, it can be used to generate the emergency treatment plan for a sudden environmental pollution incident. The represent frame of the emergency treatment plan is proposed, and the database for the emergency treatment case is constructed in this paper. The property index system and the weight of each index are constructed with R-AHP.The similarity between cases is evaluated by the nearest neighbor function method. The case study and the case database maintain take the active learning strategies. An uncertainty of production rule to represent the knowledge of emergency treatment and disposal is put forward, and a forward uncertainty reasoning mechanism and a conflict resolution strategy are also builded. With the integration of Delphi method and blind number theory, using the method of expert scoring, the uncertain evaluate of expert is expressed by the blind number theory, and the reliability of disposal plan is evaluated. With the integration of plan generating with the expert evaluating, the adjustment of the emergency plan is accomplished by the combination of human with the machine. So, the planning system of emergency treatment and disposal can realize a comprehensive integration from qualitative to quantitative.For a sudden accident, a joint operation of multilevel and multiple departments is needed. For the knowledge and resources of emergency rescue,its locations are physically or logically scattered. Due to this reason, based on multi-agent, the paper builds an emergency decision model for the sudden environmental pollution incidents. Take the ammonia leak as an example, the GAUSS puff model is combined with the WebGIS, the warning technology for the diffusion of atmospheric pollution is studied. The diffusion range and the emergency path planning provide a dynamic, scientific, specific program for the implementation of contingency plans. The emergency agent has been defined,and the design be carried out for the interface agent, the communication agent,the management agent and the task organization agent. The technique of the contingency plans and the emergency warning has been encapsulated by the agent technology. The news/dialogue mode is used for the communication between agents adopts. Based on the strategy of task sharing and results sharing,according with the emergency decision-making model, agents collaborate to accomplish a complex task for the sudden environment pollution emergency decision.For the insufficient of the specialized emergency treatment and disposal equipment in an emergency rescue, and for the low level of technology for the equipment, a knowledge database for the emergency treatment and disposal of hazardous chemicals is constructed, and also the modular design of the emergency treatment and disposal systems is studied. The multi-function emergency equipment holds some characters such as: fixed percentage matching-rotating spray and neutralization- pumping and accommodating, so it can realize the dilution and neutralization of the atmospheric pollutants, and also can do the collection of the ground pollutants. The design of the electric-hydraulic driven slide valve and the electric ball valve can provide a solution for the leakage accident emergency of hazardous chemical storage tanks and pipeline. The application of the emergency closing slide valve to ammonia leaking can act as a reliable response to the emergency of the ammonia spill.Based on the scenario analysis, some simulation exercises of this mobile emergency platform are performed. The results of these simulations and the actual rescue application of this platform can prove that the function and the performance of this platform all achieve the desired purpose. This platform not only can provide direct technical and equipment support to the emergency rescue of sudden environmental pollution incidents for the road transportation of dangerous chemicals, but also can provide a method and solve to the emergency of other unexpected environmental pollution incidents. The related research on the technique and the application hold great significance to the improving of the emergency management level, and can improve the ability of disposal of sudden environmental pollution incidents. It also has vast importance to the harmonious development of the economy and society.
Keywords/Search Tags:environmental pollution, mobile emergency platform, comprehensive integration method, reasoning technology with the integration of multi-method, multi-agent decision model, database of emergency treatment and disposal
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