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Research and Implementation of Seismic Precursor Data Transmission Based on Oracle Advanced Queuing

Author: ShiWei
Tutor: LiuZhi；LiWeiDong
School: Institute of Geology of China Earthquake Administration
Course: Solid Earth Physics
Keywords: Earthquake Precursor data Advanced Queuing Data transmission Data conversion Performance Analysis OEM ( Oracle Enterprise Manager )
CLC: P315
Type: Master's thesis
Year: 2005
Downloads: 105
Quote: 1
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Abstract


The earthquake disaster is the human face of major natural disasters in a very short period of time, it can bring very significant losses to human life and material possessions. Strengthening of earthquake monitoring and prediction, prevention and mitigation of earthquake disaster is an extremely urgent task. Earthquake precursor data is the basic data of earthquake prediction and research work, earthquake scientists and government departments unremitting efforts, China's earthquake monitoring and forecasting system has taken shape, especially after the implementation of the project in the Ninth Five-Year Plan, earthquake precursors nearly one-third of the test item in the Network to achieve the digital transformation, greatly improve the accuracy of the observations, the amount of data also increased significantly. Chinese the earthquake precursory network Nissan amount of data with the China Seismological Bureau, \Message queue middleware technology is already in the mature stage, has a wide range of applications in finance, telecommunications, transportation, government and other industries, to achieve a variety of network protocols, data transfer between different computer systems and different software applications, but This technology has not yet began to use in the seismic industry, it is necessary application message queue technology earthquake precursor data transmission. With the rapid development of computer and network technology, seismic information systems tend to run in a variety of hardware platforms, these hardware platforms and there is usually a wide variety of system software. Different platforms tend to use different network protocols and network architecture, and how safe and reliable data communication in these systems is a very real and difficult problems. Message queue middleware powerful data transmission capacity and to ensure reliable transmission of the message, plus the soft shield of hardware platforms and communication protocols, making off-site transfer of seismic data becomes simple. Oracle Advanced queue (Advanced Queuing, hereinafter referred to as the Advanced Queuing) is integrated in the Oracle database message queue middleware, which enables the Oracle database applications and users to be able to use the queue for asynchronous communication between. For the application provides several ways to add a message queue call called into the column also provides several ways to tune out from the queue and get messages (called columns). Exception handling to ensure the sending of a message, to cope with the message could not be sent. It provides a method for prioritizing the message, and given the time attribute for the message, such as the expiration time and delay. By using the Advanced Queuing Message Queuing operations inherited all the advantages of the database, such as reliability, integrity, high availability, security and scalability, message queue operations are transactional, once submitted, the message can ensure that transmission; multiple message queues, and database operations can be performed in the same transaction; database provides access to these messages

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CLC: > Astronomy,Earth Sciences > Geophysics > Earth ( rock circles ) physics ( geophysics ) > Seismology
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