CN104735145B - The disaster early-warning information publication of application bandwidth adaptive technique and its display system - Google Patents
The disaster early-warning information publication of application bandwidth adaptive technique and its display system Download PDFInfo
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- CN104735145B CN104735145B CN201510129657.2A CN201510129657A CN104735145B CN 104735145 B CN104735145 B CN 104735145B CN 201510129657 A CN201510129657 A CN 201510129657A CN 104735145 B CN104735145 B CN 104735145B
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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]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/40—Support for services or applications
- H04L65/4061—Push-to services, e.g. push-to-talk or push-to-video
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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
-
- 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
- H04L67/04—Protocols specially adapted for terminals or networks with limited capabilities; specially adapted for terminal portability
-
- 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
- H04L67/55—Push-based network services
Abstract
Disaster early-warning information publication and its display system the invention discloses a kind of application bandwidth adaptive technique,Terminal device including Meteorological Center server and for disaster early-warning information publication,Terminal device is equipped with the operation program of disaster early-warning information publication,The terminal device includes mobile terminal and connects the PC of internet,It is characterized in that,Further include the bandwidth self-adaption module that with good grounds network environment judges adjust automatically transmission mode and its configured transmission,Bandwidth self-adaption module is in the application program operation of terminal device,The mode for first judging terminal device connection internet is by Ethernet or WIFI connections internet,Or it is connected by mobile communication network,Make no matter disaster early-warning information delivery system is in which kind of network environment can ensure transmission success rate and transmission speed,It avoids that urgent publication warning information can not be received because of communication failure.
Description
Technical field
The present invention relates to a kind of publication of disaster early-warning information and its display systems；Especially it is a kind of data based on TCP/IP
Transmission control technology automatically adjusts communications parameter, it is ensured that the stabilization of communication simultaneously optimizes data using the current state for checking network
The speed of transmission greatly utilizes the publication of the disaster early-warning information of network bandwidth and multi-media display system.
Background technology
At present, the network communication based on widely used TCP/IP all lacks control means, is directly provided using system
SOCKET interface communications, therefore, the communication efficiency under current multiple network environment are all at a fairly low, if any use broadband network
（Such as optical fiber, kilomega network）Bandwidth utilization rate is not high, and is communicated using narrowband（Such as GPRS）Frequent data transmission fails.
Under weather bureau's internal network environment or internet environment, use cable network, bandwidth it is relatively stable and
Under same LAN, the data transmission of presentation device and central server is protected, even if transmission is to regard in real time online
Frequency also can guarantee.But in the case of by using mobile network, since mobile network uses shared bandwidth, and
DTU can reduce access bandwidth automatically according to mobile network signals state, network connection is even closed in the case of signal difference；Root
According to mobile application development Experience for many years, if client software is not monitored current network bandwidth, it may appear that regular logical
It interrogates the problem of failing or even network can not be connected always；Therefore, mobile client makees communications parameter by using three information of layer
Go out adjustment to ensure data communication success rate.
Now with the fast development of computer network and video compression technology, the research and application of multimedia technology are increasingly
Mostly it is taken seriously.The data volume that is possessed due to multimedia technology is big, the stronger feature to requirement of real-time, causes in IP network
When being transmitted in network, QoS is difficult to be guaranteed.Therefore, it by using bandwidth self-adaption, is independently selected automatically according to network state
Transmission mode, adjust automatically data package size, buffering and the waiting mechanism that is delayed, reach the ideal effect of transmission.
Invention content
It is an object of the invention to overcome above-mentioned the shortcomings of the prior art, and providing one kind can improve under TCP/IP
Network communication adapts to multiple network environment and network bandwidth utilization factor can be greatly improved and improve network transmission success rate,
So as to ensure the publication of the disaster early-warning information of the stability of data communication, application bandwidth adaptive technique and its display system, with
Make no matter disaster early-warning information delivery system can ensure transmission success rate and transmission speed in which kind of network environment, avoid because
Urgent publication warning information can not be received for communication failure.
The object of the present invention is achieved like this：
Application bandwidth adaptive technique disaster early-warning information publication and its display system, including Meteorological Center server with
And the terminal device for disaster early-warning information publication, terminal device are equipped with the operation program of disaster early-warning information publication, the end
End equipment includes mobile terminal and connects the PC of internet, it is characterized in that, it further includes with good grounds network environment and judges adjust automatically
The bandwidth self-adaption module of transmission mode and its configured transmission, bandwidth self-adaption module are run in the application program of terminal device
When, the mode for first judging terminal device connection internet is by Ethernet or WIFI connections internet, still passes through movement
Communication network connects, if detecting, terminal device is obtained using Ethernet or WIFI connections, system using ICP/IP protocol
After access is according to link bandwidth, according to transmission mode and its configured transmission that network environment adjustment uses, if detecting, equipment uses
Mobile communication network, after system then obtains data link bandwidth by using three information of AT instructions queries DTU layers, according to network
The transmission mode and the configured transmission of adjustment which that environment judgement uses, so that no matter disaster early-warning information delivery system is in
Which kind of network environment can ensure transmission success rate and transmission speed, avoid that urgent publication can not be received because of communication failure
Warning information.
The present invention can also use following technical measures to solve：
As above-mentioned more specific scheme, above-mentioned three information of DTU layers includes three layers, and first layer is physical layer, is the bottom,
The Radio Link needed for transmission bit stream is provided, it defines wireless access capability, and the transmission for high layer information provides basic
Wireless channel, including Traffic Channel and control channel；The second layer is data link layer, is middle layer, using LAPDm agreements, it
Including various data transmission structures, data transmission is controlled, ensures to establish between mobile station and base station reliable special
Data link；Third layer is network application layer, is top, it includes various types of messages and program, and business is controlled and is managed
Reason, i.e., be arranged into the specific information of mobile station and system control process on the logic channel specified by certain protocol packet.
Wherein, above-mentioned third layer, i.e.,：Network application layer, including wireless resource management RR, mobile management MM and splicing sleeve
CM3 sublayer is managed, is the primary message content transmitted on Um mouths, wherein, connection management sublayer includes three parts, respectively
It is：CC Call- Control1s business, SS supplementary services and SMS short message services.
As further specific embodiment, the TCP/IP network communication protocols, layered structure includes network
Interface layer, physical layer are to define the various characteristics of physical medium；Network layer, the communication being responsible between adjacent computers, function
Including three aspects；Transport layer provides the communication between application program；Application layer provides a user one group of common application program.
Compared with prior art, beneficial effects of the present invention are as follows：
（1）The disaster early-warning information publication of the present invention and its display system, apply bandwidth self-adaption technology, can improve
The communication of TCP/IP lower networks adapts to multiple network environment and network bandwidth utilization factor can be greatly improved and improve network transmission
Success rate, so as to ensure the stability of data communication, so which kind of network environment no matter disaster early-warning information delivery system be in
It can ensure transmission success rate and transmission speed, avoid that urgent publication warning information can not be received because of communication failure.
Description of the drawings
Fig. 1 disaster early-warning information publications of the present invention and its workflow schematic diagram of display system.
Fig. 2 transmits hollow middle interface layering architecture figure for mobile terminal.
Fig. 3 is three control plane figure of layer.
Fig. 4 is three message structure figure of layer.
Fig. 5 is OSI seven layer models.
Fig. 6 is OSI seven layer model data transmission principle figures.
Fig. 7 is TCP/IP hierarchical mode schematic diagrames.
Fig. 8 is TCP/IP data transmission principle figures.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
As shown in Figure 1, a kind of disaster early-warning information publication of application bandwidth adaptive technique and its display system, including gas
As central server and for the terminal device that disaster early-warning information is issued, terminal device is equipped with the fortune of disaster early-warning information publication
Line program, the terminal device include mobile terminal and connect the PC of internet, it is characterized in that, further include with good grounds network rings
Border judges the bandwidth self-adaption module of adjust automatically transmission mode and its configured transmission, and bandwidth self-adaption module is in terminal device
Application program run when, first judge terminal device connect internet mode be by Ethernet or WIFI connections internet,
Or it is connected by mobile communication network, if detecting, terminal device is used using Ethernet or WIFI connections, system
ICP/IP protocol is come after obtaining data link bandwidth, according to transmission mode and its configured transmission that network environment adjustment uses, if
Equipment is detected using mobile communication network, system then obtains data link by using three information of AT instructions queries DTU layers
After bandwidth, the transmission mode used according to network environment judgement and the configured transmission for adjusting which, so that disaster early-warning information
Which kind of network environment no matter delivery system, which be in, can ensure transmission success rate and transmission speed, avoid because of communication failure and nothing
Method receives urgent publication warning information.
Three Concept of Information of layer：
In mobile terminal transmission, air interface（air interface）It is a kind of by wireless telecommunications, to link movement
Phone end-user and base station.In the mobile phone, " air interface " represents the wireless transmission between base station and mobile phone
Specification.The coding method that the frequency of use and bandwidth of its each wireless channel of definition or definition use, current GSM,
The mainstreams such as CDMA, WCDMA, TD-SCDMA, LTE mobile communication network all uses this air interface.
Three hierarchical information of layer are as follows：
First layer is physical layer, is denoted as L1, is the bottom, provides the Radio Link needed for transmission bit stream.It is defined
Wireless access capability, the transmission for high layer information provide basic wireless channel（Logic channel）, including Traffic Channel and control
Channel.
The second layer is data link layer, is denoted as L2, is middle layer, uses LAPDm agreements.It includes various data transmission knots
Structure controls data transmission, ensures to establish reliable exclusive data link between mobile station and base station.LAPDm agreements
It is based on D channel link access protocols in ISDN（LAPD）, it is contemplated that radio transmission and control characteristic are made it suitable at Um mouthfuls
Upper transmission.
Third layer is network application layer, is denoted as L3, is top.It includes various types of messages and program, and business is controlled
System and management are arranged into the specific information of mobile station and system control process by certain protocol packet the logic letter specified
On road.L3 includes wireless resource management（RR）, mobile management（MM）And connection management（CM）3 sublayers, here it is on Um mouths
The primary message content of transmission.Wherein connection management sublayer includes three parts, is respectively：CC（Call- Control1 business）、SS
（Supplementary service）And SMS（Short message service）；As shown in Figure 2, it is air interface hierarchical diagram.
The effect and classification of three information of layer
Third layer signaling is to look at the Information Level of network operation situation, from third layer it can be seen that the various actions of network,
Such as call flow, congestion, Yong Humang, location updating.A total of 8 types of system information：System Information
Type 1、System Information Type 2、System Information Type 2bis、System
Information Type 2ter、System Information Type 3、System Information Type 4、
System Information Type 5、System Information Type 5ter、System Information
Type 6、System Information Type7、System Information Type 8、System Information
Type 13.Wherein, three message of layer that we apply is System Information Type 13, as shown in Figure 3, i.e.,：Layer three
Control plane figure.
Such as Fig. 4 for shown in three message structure figure of layer.
OSI seven layer model introductions：
OSI（Open System Interconnection, open system interconnection）Seven layer network models are known as open system
System interconnection reference model, is a definition in logic, a specification, it has logically been divided into network 7 layers：
Physical layer（Physical Layer）, which includes physics networking medium, such as cable connection connector；
Data link layer（Datalink Layer）, it controls the communication between network layer and physical layer；
Network layer（Network Layer）, major function be by Network address translators into corresponding physical address, and certainly
It is fixed how data to be routed to recipient from sender；
Transport layer（Transport Layer）, transport protocol is carried out at the same time flow control or can be received based on recipient
The speed degree of data provides appropriate transmission rate；
Session layer（Session Layer）, it is responsible for establishing, maintain and terminating communication between two nodes in a network；
Expression layer（Presentation Layer）, the Interpreter Officer between application program and network, in expression layer, data will
It is formatted according to the scheme that network is understood that；
Application layer（Application Layer）, it is by several specific application service elements（SASE）With one or more
A common application service element（CASE）Composition；
As shown in figure 5, for OSI seven layer models.
As shown in Figure 6, it is OSI seven layer model data transmission principle figures.
ICP/IP protocol：
Transmission Control Protocol/Internet Protocol's writes a Chinese character in simplified form, and middle translated name is controlled for transmission
Agreement/Internet Protocol also known as network communication protocol processed are the most basic agreements of Internet, Internet international mutually
The basis of networking network, is made of the IP agreement of network layer and the Transmission Control Protocol of transport layer.ICP/IP protocol is that we are applied to system
In data communication protocol.
TCP/IP layered structures：
Network interface layer, physical layer are to define the various characteristics of physical medium；
Network layer, the communication being responsible between adjacent computers.Its function includes three aspects；
Transport layer provides the communication between application program；
Application layer provides a user one group of common application program.
It is TCP/IP hierarchical mode schematic diagrames shown in Fig. 7.
Fig. 8 is TCP/IP data transmission principle figures.
OSI/RM models are a kind of international official standards, and TCP/IP is a kind of international standard of practical application, because
This is considered as the practical application that TCP/IP is OSI/RM；So this prior art, I will not elaborate, and exhibition is stated,
Online relevant information can be thumbed.
The schematic diagram of above-mentioned Fig. 2 to Fig. 8 is the prior art, can be found from Baidupedia or other address correlations
The relevant technologies, I will not elaborate.
The present invention relates to the terminal devices of application mobile communication network, are the transmission success rate of safeguards system data, should
With bandwidth self-adaption technology；And disaster early-warning information of the invention is issued and multi-media display system, presentation device are
WINDOWS operating system environments are dialled up on the telephone by ppp protocol using DTU or provide network environment by owner.It therefore, it is necessary to should
Respectively bandwidth self-adaption is realized with two kinds of mechanism, but realization principle is the same.
Claims (1)
1. the disaster early-warning information publication of application bandwidth adaptive technique and its display system, including Meteorological Center server and
For the terminal device of disaster early-warning information publication, terminal device is equipped with the operation program of disaster early-warning information publication, the terminal
Equipment includes mobile terminal and connects the PC of internet, it is characterized in that, it further includes with good grounds network environment and judges that adjust automatically passes
The bandwidth self-adaption module of defeated mode and its configured transmission, bandwidth self-adaption module terminal device application program operation when,
The mode for first judging terminal device connection internet is by Ethernet or WIFI connections internet, still passes through mobile communication
Network connection, if detecting, terminal device obtains number using Ethernet or WIFI connections, system using ICP/IP protocol
After link bandwidth, according to transmission mode and its configured transmission that network environment adjustment uses, if detecting, equipment uses movement
Communication network, after system then obtains data link bandwidth by using three information of AT instructions queries DTU layers, according to network environment
Judge the transmission mode used and adjust the configured transmission of which, so that no matter disaster early-warning information delivery system is in which kind of
Network environment can ensure transmission success rate and transmission speed, avoid that urgent publication early warning can not be received because of communication failure
Information；The TCP/IP network communication protocols, layered structure include network interface layer, and physical layer is define physical medium each
Kind characteristic；Network layer, the communication being responsible between adjacent computers, function include three aspects；Transport layer is provided between application program
Communication；Application layer provides a user one group of common application program；
Three information of DTU layers includes three layers, and first layer is physical layer, is the bottom, provides wireless needed for transmission bit stream
Link, it defines wireless access capability, and the transmission for high layer information provides basic wireless channel, including Traffic Channel and control
Channel processed；The second layer is data link layer, is middle layer, and using LAPDm agreements, it includes various data transmission structures, logarithm
It is controlled according to transmission, ensures to establish reliable exclusive data link between mobile station and base station；Third layer is network application
Layer is top, it includes various types of messages and program, and business is controlled and is managed, i.e., mobile station and system were controlled
The specific information of journey is arranged by certain protocol packet on the logic channel specified；
The third layer, i.e.,：Network application layer, including wireless resource management RR, mobile management MM and CM3 son of connection management
Layer, is the primary message content transmitted on Um mouths, wherein, connection management sublayer includes three parts, is respectively：CC calling controls
Business processed, SS supplementary services and SMS short message services.
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| CN107071834A (en) * | 2016-12-28 | 2017-08-18 | 山东省计算中心（国家超级计算济南中心） | The agricultural machinery high accuracy positioning means of communication based on multipath transmitting |
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| US8547917B2 (en) * | 2008-03-28 | 2013-10-01 | Telefonaktiebolaget Lm Ericsson (Publ) | Network driven L3 control signalling prioritization |
| CN101552973B (en) * | 2009-04-19 | 2011-04-20 | 张晓华 | Public safety prewarning broadcast system |
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Denomination of invention: Disaster warning information release and display system based on bandwidth adaptive technology Effective date of registration: 20210617 Granted publication date: 20180703 Pledgee: Guangdong Nanhai Rural Commercial Bank branch branch of Limited by Share Ltd. Pledgor: GUANGDONG GUANGYU SCIENCE AND TECHNOLOGY DEVELOPMENT Co.,Ltd. Registration number: Y2021440000211 |
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Date of cancellation: 20221024 Granted publication date: 20180703 Pledgee: Guangdong Nanhai Rural Commercial Bank branch branch of Limited by Share Ltd. Pledgor: GUANGDONG GUANGYU SCIENCE AND TECHNOLOGY DEVELOPMENT CO.,LTD. Registration number: Y2021440000211 |