CN112422529A - Low-delay seismic waveform real-time data stream service method - Google Patents
Low-delay seismic waveform real-time data stream service method Download PDFInfo
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- CN112422529A CN112422529A CN202011212612.9A CN202011212612A CN112422529A CN 112422529 A CN112422529 A CN 112422529A CN 202011212612 A CN202011212612 A CN 202011212612A CN 112422529 A CN112422529 A CN 112422529A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/10—Network architectures or network communication protocols for network security for controlling access to devices or network resources
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/083—Network architectures or network communication protocols for network security for authentication of entities using passwords
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/51—Discovery or management thereof, e.g. service location protocol [SLP] or web services
Abstract
The invention discloses a low-delay seismic waveform real-time data stream service method, which comprises a user management interface, a user terminal and a stream server under a stream service configuration interface; entering a stream service configuration interface, requiring user management user name and password authentication, dividing the user into three different authority management modes of a super user, an uploading user and a downloading user, correspondingly setting configuration contents of each user in a configuration file of a stream server, and being capable of changing user authority and adding an allowed earthquake station list for the user; an adaptive interface program is arranged in the streaming server; the server of which the super user designates an IP address or an IP network segment can use the super user to access the stream service configuration interface; the stream server can bind station names and IP addresses in the/etc/hosts file, and establish network link with the data acquisition IP address of the same station. The invention provides real-time data flow service for various data analysis and processing systems of the seismic platform network and realizes low-delay data transmission and sharing among different seismic platform networks.
Description
Field of the method
The invention relates to the field of seismic waveform data processing methods, in particular to a low-delay seismic waveform real-time data stream service method.
Background method
The earthquake is caused by the violent movement of the earth crust and the release of a large amount of energy. Based on the characteristics that the propagation speed of electromagnetic waves is far greater than that of seismic waves, and the propagation speed of longitudinal waves of an earthquake is faster than that of transverse waves and surface waves, before destructive seismic waves reach a city or a major project away from a seismic source zone by a certain distance, the method is particularly important for quickly acquiring relevant earthquake information and issuing earthquake early warning to a potential damage area so as to take emergency measures in time and reduce possible loss caused by the earthquake. Therefore, in the process of earthquake early warning and earthquake fast reporting, the requirement on the earthquake waveform real-time data stream is very high, and the low-delay data stream service is the key of the earthquake early warning.
Disclosure of Invention
To overcome the disadvantages of the prior art methods, the present invention aims to provide a low-latency seismic waveform real-time data stream service method.
The method is realized by the following measures, including the distribution of the authority level of the stream service, the authentication of a user name and a password which need to be managed by a user when entering the configuration interface of the stream service, the classification of the user terminal into different authority management, the acquisition of different authorities corresponding to the users with different levels in the configuration unit of the stream server, the provision of user authority changing service in the configuration unit, and the addition of a seismic station list which is allowed to be accessed in the memory of all user management pages;
an adaptive program interface is arranged in the streaming server and supports various types of instruments to exchange data;
the user terminal appoints a server with an IP address or an IP network segment to access a stream service configuration interface according to the management authority;
when the station receives real-time data, the streaming server firstly binds the station name and the IP address in a folder of a storage unit, and establishes a network link with the data acquisition IP address of the same station.
As a preferred mode, the user terminal is divided into a super user, an uploading user and a downloading user, the user logged in the stream service configuration interface is authenticated by user information, and the stream service uses a management tool to manage the password; the server of the super user with the designated IP address or IP network segment can use the super user to access the stream service configuration interface, and the super user access address can be changed in the mysql database.
As a preferable mode, the streaming service configuration interface of the seismic real-time waveform data adopts an HTTP protocol, provides data upload and download services for each software module at an 8080 port, receives real-time waveform data of each seismic station of a station center in China and shares near real-time waveform data of itself.
As a preferable mode, according to the pre-constructed data transmission protocol service of the SeedLink and LISS, the real-time waveform data is written into the RTS database storing the waveform data through the EJB service of JBOSS, and the real-time waveform data on the real-time waveform server of the foreign station center is received.
As a preferred mode, the streaming server receives a data request message sent by a user terminal, where the data request message carries a data request identifier.
Preferably, the streaming server includes a streaming server (SSS) and a streaming server (SSS2), where the streaming server (SSS) returns a data request message to the user terminal, and the data request message carries address information of a streaming server (SSS2) that continues to send streaming media data to the user terminal after the streaming server (SSS) finishes sending the stored waveform data.
Preferably, the waveform database stores near real-time seismic waveform data of domestic and foreign stations.
As a preferred mode, the method further comprises a stream service configuration interface arranged in Jopens software, entering the stream service configuration interface, inputting a user name, and entering the super user, the uploading user or the downloading user authority system through password authentication; the super user can set that only a server with a specified IP address or IP network segment can use the super user to access the stream service configuration interface to ensure the stream service safety; the uploading user uploads continuous real-time waveform data acquired from the Kafka distributed high-availability cluster through a Kafka Connector API in a real-time flow calculation framework to a system, and real-time data information acquired by the station is put into an RTS database; the downloading user downloads real-time waveform data or past waveform data of domestic and foreign local stations through the Internet, and performs statistical broadcast on the waveform data.
The invention provides a low-delay seismic waveform real-time data stream service method, wherein the access of a stream service configuration interface is authenticated by a user name and a password, the content obtained corresponding to different authorities is relatively different from the entered page, and meanwhile, the access address of a super user is limited to a certain extent, so that the safety of stream service configuration is guaranteed; secondly, the method establishes a mechanism for uploading and downloading waveform data by a user, and provides program interfaces for all instruments meeting the software data transmission protocol, so that the instruments can directly exchange data; clicking an interface of the stream service configuration after entering a Jopens console, wherein a plurality of service subsets are arranged under the interface of the stream service configuration, so that the stream service program realizes refined and visual management configuration; in addition, when receiving real-time data from the station, the stream server establishes network link with the data acquisition through the data acquisition IP address of the station, and the stream service log provides the station name to replace the direct use of the IP address, thereby facilitating later use and maintenance. The invention provides real-time data flow service for a waveform data analysis processing system of the earthquake table network, realizes low-delay data transmission and sharing among different earthquake table networks, solves the problem of flow casting of earthquake waveform real-time data, and can be used for near real-time information communication such as earthquake early warning, earthquake prompt report and the like.
Drawings
FIG. 1 is a schematic flow chart of an embodiment of the present invention;
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings.
A low-delay seismic waveform real-time data stream service method is disclosed, and referring to fig. 1, the method comprises stream service authority level distribution, user name and password authentication which needs user management when entering a stream service configuration interface, and the user terminal is divided into different authority management, different authorities are obtained in a configuration unit of a stream server corresponding to users of different levels, user authority change service is provided in the configuration unit, and a seismic station list which allows access is added in a memory of all user management pages.
The stream server is internally provided with an adaptive program interface which supports instruments of various types to exchange data, instruments of any type are supported, meanwhile, the support of a simple intensity instrument data transmission protocol is added, and data exchange can be directly carried out as long as any type of instrument of the protocol is fully supported.
The user terminal appoints a server with an IP address or an IP network segment to access a stream service configuration interface according to the management authority; when the station receives real-time data, the streaming server firstly binds the station name and the IP address in a folder of a storage unit, and establishes a network link with the data acquisition IP address of the same station. When receiving real-time data from a station, the streaming service needs to establish a network link with a data acquisition device through a data acquisition IP address of the station, firstly binds a station name and an IP address in an/etc/hosts file, and uses the station name to replace the traditional IP address which is directly used, so that the structure is clear and the configuration is more convenient. The binding method is added in/etc/hosts files, such as the IP address and station name of Guangzhou station and Shaoguan station, and the format is as follows: 10.44.10.121GD, GZH; 10.44.10.122GD. And the station name is preset in the log of the streaming server (SSS), so that the user can directly select the station name without manual input.
The user terminal is divided into three types, namely a super user, an uploading user and a downloading user, the user logged in the streaming service configuration interface is authenticated by user information, the streaming service uses a management tool to manage the password, the configuration content of each user is in the configuration file of the streaming server, the user authority can be changed in the configuration file, and a seismic station list allowing access is added for each user, and the list must be a subset of the station list allowing the streaming service to provide the service;
the server of the super user with the appointed IP address or IP network segment can use the super user to access the stream service configuration interface, the super user access address can be changed in the mysql database, and the user can set that only the server of the appointed IP address or IP network segment can use the super user to access the stream service configuration interface. The addresses that the flow service supervisor allows access to can be changed in the mysql (relational database management system) database:
mysql>use jopens；
mysql>update ProfileUser set allowAddr＝'10.*.*.0/24'where user＝'root'；
the flow service configuration interface of the seismic real-time waveform data adopts an HTTP (hyper text transport protocol), provides data uploading and downloading services for each software module at an 8080 port, receives the real-time waveform data of each seismic station in the domestic station center and shares the near real-time waveform data of the seismic station.
The real-time waveform data can be written into an RTS database for storing the waveform data through an EJB service of JBOSS according to the pre-constructed data transmission protocol service of SeedLink and LISS, and the real-time waveform data on a central real-time waveform server of a foreign station is received. The method receives the LISS service of the USGS in the United states and the quasi-real-time waveform data of the SEEDLINK protocol of the GEOFON in Germany, provides the quasi-real-time service of the waveform data for each service application, and realizes the forwarding and the exchange of the real-time waveform data between the regional center and the national center.
The stream server receives a data request message sent by a user terminal, wherein the data request message carries a data request identifier; the streaming server comprises a streaming server (SSS) and a streaming server (SSS2), wherein the streaming server (SSS) returns a data request message to the user terminal, and the data request message carries address information of the streaming server (SSS2) which continues to send streaming media data to the user terminal after the streaming server (SSS) sends the stored waveform data.
Near real-time seismic waveform data of domestic and foreign stations are stored in the waveform database, and after a user accesses a program interface, the waveform data can be uploaded and downloaded on line, so that real-time waveform data of the seismic stations in the regional center can be forwarded and collected, and real-time waveform data between the regional center and the national center can be forwarded and exchanged.
The system also comprises a stream service configuration interface arranged in Jopens software, enters the stream service configuration interface, inputs a user name and enters the super user, the uploading user or the downloading user authority system through password authentication; the super user can set that only a server with a specified IP address or IP network segment can use the super user to access the stream service configuration interface to ensure the stream service safety; the uploading user uploads continuous real-time waveform data acquired from the Kafka distributed high-availability cluster through a Kafka Connector API in a real-time flow calculation framework to a system, and real-time data information acquired by the station is put into an RTS database; the downloading user downloads real-time waveform data or past waveform data of domestic and foreign local stations through the Internet, and performs statistical broadcast on the waveform data.
The present invention has been described in terms of a low latency seismic waveform real-time data stream service method for facilitating understanding, but the embodiments of the present invention are not limited to the above embodiments, and any changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit of the present invention shall be regarded as equivalent substitutions and shall be included within the scope of the present invention.
Claims (8)
1. A low-delay seismic waveform real-time data stream service method is characterized by comprising the following steps:
stream service authority level distribution, entering a stream service configuration interface, requiring user management user name and password authentication, dividing the user terminal into different authority management, obtaining different authorities corresponding to users of different levels in a configuration unit of the stream server, providing user authority change service in the configuration unit, and adding an allowed earthquake station list in all user management page memories;
an adaptive program interface is arranged in the streaming server and supports various types of instruments to exchange data;
the user terminal appoints a server with an IP address or an IP network segment to access a stream service configuration interface according to the management authority;
when the station receives real-time data, the streaming server firstly binds the station name and the IP address in a folder of a storage unit, and establishes a network link with the data acquisition IP address of the same station.
2. The low-latency seismic waveform real-time data stream service method of claim 1, wherein: the user terminal is divided into a super user, an uploading user and a downloading user, the user logged in the stream service configuration interface is authenticated by user information, and the stream service uses a management tool to manage the password; the server of the super user with the designated IP address or IP network segment can use the super user to access the stream service configuration interface, and the super user access address can be changed in the mysql database.
3. The low-latency seismic waveform real-time data stream service method of claim 1, wherein: the flow service configuration interface of the seismic real-time waveform data adopts an HTTP (hyper text transport protocol), provides data uploading and downloading services for each software module at an 8080 port, receives the real-time waveform data of each seismic station in the domestic station center and shares the near real-time waveform data of the seismic station.
4. The low-latency seismic waveform real-time data stream service method of claim 1, wherein: the real-time waveform data can be written into an RTS database for storing the waveform data through an EJB service of JBOSS according to the pre-constructed data transmission protocol service of SeedLink and LISS, and the real-time waveform data on a central real-time waveform server of a foreign station is received.
5. The low-latency seismic waveform real-time data stream service method of claim 1, wherein: the stream server receives a data request message sent by a user terminal, wherein the data request message carries a data request identifier.
6. The low-latency seismic waveform real-time data stream service method of claim 5, wherein: the streaming server comprises a streaming server (SSS) and a streaming server (SSS2), wherein the streaming server (SSS) returns a data request message to the user terminal, and the data request message carries address information of the streaming server (SSS2) which continues to send streaming media data to the user terminal after the streaming server (SSS) sends the stored waveform data.
7. The low-latency seismic waveform real-time data stream service method of claim 1, wherein: the waveform database stores near real-time seismic waveform data of domestic and foreign stations.
8. A low-latency seismic waveform real-time data stream service method according to claim 1 or 2, characterized by: the system also comprises a stream service configuration interface arranged in Jopens software, enters the stream service configuration interface, inputs a user name and enters the super user, the uploading user or the downloading user authority system through password authentication;
the super user can set that only a server with a specified IP address or IP network segment can use the super user to access the stream service configuration interface to ensure the stream service safety;
the uploading user uploads continuous real-time waveform data acquired from the Kafka distributed high-availability cluster through a Kafka Connector API in a real-time flow calculation framework to a system, and real-time data information acquired by the station is put into an RTS database;
the downloading user downloads real-time waveform data or past waveform data of domestic and foreign local stations through the Internet, and performs statistical broadcast on the waveform data.
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