技术领域technical field
本发明涉及通信技术领域，具体涉及一种基于移动互联网的数据传输方法及系统。The present invention relates to the field of communication technology, in particular to a mobile Internet-based data transmission method and system.
背景技术Background technique
互联网的飞速发展，已逐渐深入到多数人的日常生活和工作中，随着移动互联网技术的不带升级换代，移动终端已经成为用户随身携带的必备产品。人们开始习惯于使用移动终端进行各种资料的管理与传输，但是，移动互联网特有的网络链接不稳定、带宽不足，传输速率低、可靠性差的问题，给用户资料的传输带来了极大的不便。The rapid development of the Internet has gradually penetrated into the daily life and work of most people. With the continuous upgrading of mobile Internet technology, mobile terminals have become a must-have product for users to carry with them. People have become accustomed to using mobile terminals to manage and transmit various data. However, the unique problems of mobile Internet, such as unstable network links, insufficient bandwidth, low transmission rate, and poor reliability, have brought great challenges to the transmission of user data. inconvenient.
发明内容Contents of the invention
针对现有技术存在的问题和迫切需求，本发明提出一种基于移动互联网的数据传输方法及系统，其目的在于，在在移动互联网模式下，实现移动终端和服务器之间的数据传输的可靠性机制和流量控制机制，保证数据安全完整的传输，解决移动网络下数据传输易掉线，传输不完整的技术问题。Aiming at the existing problems and urgent needs of the prior art, the present invention proposes a data transmission method and system based on the mobile Internet, the purpose of which is to realize the reliability of data transmission between the mobile terminal and the server in the mobile Internet mode Mechanism and flow control mechanism to ensure the safe and complete transmission of data, and solve the technical problems of easy disconnection and incomplete transmission of data transmission under the mobile network.
一种基于移动互联网的数据传输方法，包括以下步骤：A data transmission method based on the mobile Internet, comprising the following steps:
(1)数据链接初始化：(1) Data link initialization:
(11)移动终端向服务器发出包含网络传输机制、传输数据类别、传输命令类别、数据基本属性信息以及包完整性校验码信息的数据协商请求；(11) The mobile terminal sends to the server a data negotiation request including network transmission mechanism, transmission data category, transmission command category, data basic attribute information and packet integrity check code information;
(12)服务器首先解析数据协商请求，然后按照网络传输机制为WiFi对应的分包和分块相对较大、网络传输机制为3G或4G对应的分包和分包相对较小的原则设定分包大小和分块大小；若网络传输机制为WiFi则设定传输方式为完全传输方式，若网络传输机制为3G或4G则设定传输方式为断点续传方式；最后生成包含传输方式、分包最大值、分块大小、加密机制、数据完整性验码以及包完整性校验码的数据协商请求响应并反馈给移动终端；(12) The server first parses the data negotiation request, and then sets the packet according to the principle that the network transmission mechanism is relatively large for WiFi, and the network transmission mechanism is relatively small for 3G or 4G. Packet size and block size; if the network transmission mechanism is WiFi, then set the transmission mode to full transmission mode; if the network transmission mechanism is 3G or 4G, set the transmission mode to continuous transmission mode; finally generate Packet maximum value, block size, encryption mechanism, data integrity check code, and packet integrity check code data negotiation request response and feedback to the mobile terminal;
(2)数据传输处理：(2) Data transmission processing:
(21)移动终端解析数据协商请求响应，依据数据传输方式、分包大小、分块大小拼装待传输数据包，生成包含数据传输方式、包序号、块序号、数据包、数据完整性校验码以及包完整性校验码的数据传输请求并发送给服务器；(21) The mobile terminal analyzes the data negotiation request response, assembles the data packets to be transmitted according to the data transmission method, packet size, and block size, and generates data transmission method, packet sequence number, block sequence number, data packet, and data integrity check code And the data transmission request of the package integrity check code and send it to the server;
(22)服务器解析数据传输请求，利用包完整性校验码检查包的完整性，若不完整，则要求移动终端重传，否则，生成包含数据完整性校验码、传输方式、包序号、块序号、处理结束、包完整性校验码的数据传输请求响应并反馈给移动终端；(22) The server parses the data transmission request, and checks the integrity of the packet using the packet integrity check code. If it is incomplete, the mobile terminal is required to retransmit. Respond to the data transmission request of the block number, processing end, and packet integrity check code and feed it back to the mobile terminal;
(3)会话结束处理：(3) Session end processing:
(31)移动终端向服务器端发出包含数据完整性校验码、包完整性校验码信息的检查请求；(31) The mobile terminal sends a check request including data integrity check code and packet integrity check code information to the server;
(32)服务器对收到的所有数据包进行拼装，利用数据完整性校验码检查数据块的完整性和数据的完整性；若数据块不完整，则要求移动终端重传该数据块；若数据完整性不一致，则表明整个数据包存在问题，要求移动终端重传整个数据包。(32) The server assembles all data packets received, and uses the data integrity check code to check the integrity of the data block and the integrity of the data; if the data block is incomplete, the mobile terminal is required to retransmit the data block; if Inconsistent data integrity indicates that there is a problem with the entire data packet, and the mobile terminal is required to retransmit the entire data packet.
一种基于移动互联网的数据传输系统，包括移动终端和服务器端；A data transmission system based on the mobile Internet, including a mobile terminal and a server;
移动终端用于向服务器发出包含网络传输机制、传输数据类别、传输命令类别、数据基本属性信息以及包完整性校验码信息的数据协商请求；The mobile terminal is used to send a data negotiation request including network transmission mechanism, transmission data category, transmission command category, data basic attribute information and packet integrity check code information to the server;
服务器用于首先解析数据协商请求，然后按照网络传输机制为WiFi对应的分包和分块均相对较大、网络传输机制为3G或4G的分包和分包相对较小的原则设定分包大小和分块大小；若网络传输机制为WiFi则设定传输方式为完全传输方式，若网络传输机制为3G或4G则设定传输方式为断点续传方式；最后生成包含传输方式、分包最大值、分块大小、加密机制、数据完整性验码以及包完整性校验码的数据协商请求响应并反馈给移动终端；The server is used to first analyze the data negotiation request, and then set the subcontract according to the principle that the network transmission mechanism is that the subpackage and subpackage corresponding to WiFi are relatively large, and the network transmission mechanism is 3G or 4G. Size and block size; if the network transmission mechanism is WiFi, set the transmission method to full transmission mode; if the network transmission mechanism is 3G or 4G, set the transmission mode to continuous transmission mode; the final generation includes transmission mode, subpacket Maximum value, block size, encryption mechanism, data integrity check code and packet integrity check code data negotiation request response and feedback to the mobile terminal;
移动终端用于解析数据协商请求响应，依据数据传输方式、分包大小、分块大小拼装待传输数据包，生成包含数据传输方式、包序号、块序号、数据包、数据完整性校验码以及包完整性校验码的数据传输请求并发送给服务器；The mobile terminal is used to analyze the data negotiation request response, assemble the data packets to be transmitted according to the data transmission mode, subpacket size, and block size, and generate data transmission mode, packet sequence number, block sequence number, data packet, data integrity check code and The data transmission request of the packet integrity check code is sent to the server;
服务器用于解析数据传输请求，利用包完整性校验码检查包的完整性，若不完整，则要求移动终端重传，否则，生成包含数据完整性校验码、传输方式、包序号、块序号、处理结束、包完整性校验码的数据传输请求响应并反馈给移动终端；The server is used to analyze the data transmission request, and check the integrity of the packet by using the packet integrity check code. If it is incomplete, the mobile terminal is required to retransmit it. Respond to the data transmission request of the sequence number, processing end, and packet integrity check code and feed it back to the mobile terminal;
移动终端用于向服务器端发出包含数据完整性校验码、包完整性校验码信息的检查请求；The mobile terminal is used to send a check request including data integrity check code and packet integrity check code information to the server;
服务器用于对收到的所有数据包进行拼装，利用数据完整性校验码检查数据块的完整性和数据的完整性；若数据块不完整，则要求移动终端重传该数据块；若数据完整性不一致，则表明整个数据包存在问题，要求移动终端重传整个数据包。The server is used to assemble all the data packets received, and check the integrity of the data block and the integrity of the data by using the data integrity check code; if the data block is incomplete, the mobile terminal is required to retransmit the data block; if the data If the integrity is inconsistent, it indicates that there is a problem with the entire data packet, and the mobile terminal is required to retransmit the entire data packet.
本发明的有益技术效果体现在：Beneficial technical effect of the present invention is reflected in:
本发明方法提供了移动互联网状态下一种数据传输的可靠性机制和流量控制机制，通过对网络传输中的数据进行特定编码及交互协商，采用数据分块传输，安全加密校验等技术手段，解决了移动终端和服务器之间的数据传输速度慢、易掉线，传输不完整的技术问题，可为上层应用提供高效可靠的数据传输服务。The method of the present invention provides a data transmission reliability mechanism and a flow control mechanism under the state of the mobile Internet, by performing specific encoding and interactive negotiation on the data in network transmission, adopting technical means such as data block transmission, security encryption verification, etc., It solves the technical problems of slow data transmission speed, easy disconnection and incomplete transmission between the mobile terminal and the server, and can provide efficient and reliable data transmission services for upper-layer applications.
附图说明Description of drawings
图1为本发明数据传输机制交互序列图；Fig. 1 is an interaction sequence diagram of the data transmission mechanism of the present invention;
图2为本发明数据传输机制处理工作流程图；Fig. 2 is a flow chart of the processing work of the data transmission mechanism of the present invention;
图3为数据协商阶段请求数据对象的基本结构图；Fig. 3 is a basic structural diagram of requesting data objects in the data negotiation phase;
图4为数据协商阶段响应数据对象的基本结构图；Fig. 4 is a basic structural diagram of the response data object in the data negotiation stage;
图5为数据传输阶段请求数据对象基本结构图；Fig. 5 is a basic structural diagram of requesting data objects in the data transmission phase;
图6为数据传输阶段响应数据对象基本结构图；Figure 6 is a basic structure diagram of the response data object in the data transmission phase;
图7为传输完成阶段请求数据对象基本结构图；Fig. 7 is a basic structural diagram of the request data object in the transmission completion stage;
图8为传输完成阶段响应数据对象基本结构图。Fig. 8 is a basic structure diagram of the response data object in the transmission completion stage.
具体实施方式detailed description
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。此外，下面所描述的本发明各个实施方式中所涉及到的技术特征只要彼此之间未构成冲突就可以相互组合。In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.
本发明通过在标准传输协议(TCP/IP、HTTP/HTTPS传输协议)的上层，通过定义特定的数据传输包及传输流程，实现数据传输。The present invention implements data transmission by defining specific data transmission packets and transmission processes on the upper layer of standard transmission protocols (TCP/IP, HTTP/HTTPS transmission protocols).
本发明基于移动互联网的数据传输方法的交互流程如下：The interactive process of the data transmission method based on the mobile Internet of the present invention is as follows:
(1)数据链接初始化过程。(1) Data link initialization process.
(11)移动终端向服务器发出数据协商请求(11) The mobile terminal sends a data negotiation request to the server
移动终端向服务器发出数据协商请求，数据协商请求的基本结构如图3所示，协商信息对象包括：网络传输机制(3G/4G/WIFI)，传输数据类别(可根据需要设定，比如分为结构化数据、非结构化数据)、传输命令类别(增、删、改等)、数据基本属性信息(数据名称、数据大小、数据路径、数据完整性检查码等)、包完整性校验码等。The mobile terminal sends a data negotiation request to the server. The basic structure of the data negotiation request is shown in Figure 3. The negotiation information objects include: network transmission mechanism (3G/4G/WIFI), transmission data category (can be set according to needs, such as divided into Structured data, unstructured data), transmission command category (add, delete, modify, etc.), data basic attribute information (data name, data size, data path, data integrity check code, etc.), packet integrity check code Wait.
(12)服务器响应数据协商请求(12) The server responds to the data negotiation request
服务器解析数据协商请求，并返回协商结果，响应协商请求的基本结构如图4所示，包括响应命令类别(初始化)、传输命令类别(增、删、改等)、传输基本信息(数据完整性验码、传输方式(完全传输、断点续传)、分包最大值、分块大小)、加密机制、包完整性校验码等。The server parses the data negotiation request and returns the negotiation result. The basic structure of the response to the negotiation request is shown in Figure 4, including the response command category (initialization), transmission command category (addition, deletion, modification, etc.), transmission basic information (data integrity Code verification, transmission mode (full transmission, resumable transmission), maximum packet size, block size), encryption mechanism, packet integrity check code, etc.
网络传输机制可以为WiFi、3G、4G网络环境，考虑到WiFi网络环境的稳定性优于3G、4G，因此设定WiFi网络环境下的分包最大值可相对较大，而3G、4G网络环境下的分包最大值相对较小。The network transmission mechanism can be WiFi, 3G, and 4G network environments. Considering that the stability of the WiFi network environment is better than that of 3G and 4G, the maximum value of subcontracting in the WiFi network environment can be set to be relatively large, while the 3G and 4G network environments The maximum subpackage value under is relatively small.
传输方式包括完全传输和断点续传两种，在设备处于可靠性传输环境(WIFI)下，通常默认采用完全传输方式，在设备处于移动网络模式(3G/4G)下，默认采用断点续传方式。具体传输方式的设定需还可由应用的具体需求及环境需求来调整，包括网络状态、文件大小、文件重要性等等，应用服务器系统将在数据协商过程中设定移动终端的数据传输方式。譬如，网络状态好、文件小、文件很重要，优先采用完全传输方式。The transmission mode includes two types: full transmission and breakpoint resume transmission. When the device is in a reliable transmission environment (WIFI), the full transmission mode is usually adopted by default. When the device is in mobile network mode (3G/4G), the breakpoint resume is adopted by default. transmission method. The setting of the specific transmission method can also be adjusted according to the specific needs of the application and the environmental requirements, including network status, file size, file importance, etc. The application server system will set the data transmission method of the mobile terminal during the data negotiation process. For example, if the network status is good, the file is small, and the file is very important, the complete transmission method is preferred.
分块大小依据网络传输机制的不同进行设置，在稳定性网络(WIFI)环境中，设定的分块大小将大于非稳定性网络(3G/4G)环境。分块大小还受到设备本身性能及容量的影响，因此该值的设定在实际应用中需经过大量测试及调整，譬如默认情况下每块大小设定为4M。The block size is set according to different network transmission mechanisms. In a stable network (WIFI) environment, the set block size will be larger than that in an unstable network (3G/4G) environment. The block size is also affected by the performance and capacity of the device itself, so the setting of this value requires a lot of testing and adjustment in practical applications. For example, the size of each block is set to 4M by default.
加密机制用于保障数据的安全性，由于网络数据传输过程中，数据流很容易被截取，为保障一些重要数据的安全行，通常采用加密方法对传输的数据进行加密。通常我们可采用DES、3DES、AES等对称加密算法中的任意一种。The encryption mechanism is used to ensure the security of data. Since the data flow is easily intercepted during network data transmission, in order to ensure the security of some important data, encryption methods are usually used to encrypt the transmitted data. Usually we can use any one of DES, 3DES, AES and other symmetric encryption algorithms.
本发明启用了两层校验，保证了数据可靠性。具体而言，利用包完整性校验码检查传输过程中数据包的完整性，利用数据完整性验码检查数据内容本身的完整性。The present invention uses two layers of verification to ensure data reliability. Specifically, the packet integrity check code is used to check the integrity of the data packet during transmission, and the data integrity check code is used to check the integrity of the data content itself.
(2)数据传输处理。(2) Data transmission processing.
(21)移动终端向服务器发出数据传输请求(21) The mobile terminal sends a data transmission request to the server
移动终端解析服务器反馈的协商结果，获取数据传输方式、分包大小、分块大小等设定，按照指定的数据格式拼装需要传输的数据包，通过标准的网络传输协议(TCP/IP、HTTP/HTTPS)将数据包发送给服务器。The mobile terminal analyzes the negotiation result fed back by the server, obtains the data transmission method, packet size, block size and other settings, assembles the data packets to be transmitted according to the specified data format, and passes standard network transmission protocols (TCP/IP, HTTP/ HTTPS) to send the packet to the server.
数据传输指令的基本结构如图5所示，包括请求类别(传输)、传输命令类别(增、删、改等)、数据信息(数据完整性校验码、传输方式(完全传输、分块传输)、包序号、块序号、数据包)、包完整性校验码。The basic structure of the data transmission instruction is shown in Figure 5, including request category (transmission), transmission command category (addition, deletion, modification, etc.), data information (data integrity check code, transmission mode (complete transmission, block transmission) ), packet serial number, block serial number, data packet), packet integrity check code.
(22)服务器响应数据传输请求(22) The server responds to the data transmission request
服务器收到移动终端发送来的数据包后，将对数据包进行解包处理，响应数据传输请求，数据的解包处理需检查包的完整性。如果服务器端检查发现包完整性不一致，将在处理结果中将要求移动终端对当前包进行重传处理。After receiving the data packet sent by the mobile terminal, the server will unpack the data packet and respond to the data transmission request. The unpacking process of the data needs to check the integrity of the packet. If the server-side inspection finds that the package integrity is inconsistent, the mobile terminal will be required to retransmit the current package in the processing result.
响应传输指令的基本结构如图6所示，包括响应类别(传输)、传输命令类别(增、删、改)、数据信息(数据完整性校验码、传输方式(完全传输、分块传输)、包序号、块序号、处理结束)、包完整性校验码。The basic structure of the response transmission command is shown in Figure 6, including response category (transmission), transmission command category (addition, deletion, modification), data information (data integrity check code, transmission mode (complete transmission, block transmission) , packet sequence number, block sequence number, processing end), packet integrity check code.
(3)会话结束处理。(3) Session end processing.
移动终端和服务器检查传输结果，检查数据的完整性。服务器在收到传输结束包后，将对收到的所有数据进行拼装，检查数据块的完整性和数据的完整性，若存在数据块不完整的情况，将要求移动终端重传该数据块。若存在数据完整性不一致的情况，表明整个数据包存在问题，需由移动终端重传整个数据包。The mobile terminal and the server check the transmission result and check the integrity of the data. After receiving the transmission end packet, the server will assemble all the received data, check the integrity of the data block and the integrity of the data, and if there is an incomplete data block, the mobile terminal will be required to retransmit the data block. If there is an inconsistency in data integrity, it indicates that there is a problem with the entire data packet, and the mobile terminal needs to retransmit the entire data packet.
检查请求指令的基本结构如图7所示，包括请求类别(结束)、数据完整性校验码、包完整性校验码。The basic structure of the check request command is shown in Figure 7, including request category (end), data integrity check code, and packet integrity check code.
响应检查请求的基本结构如图8所示，包括响应类别(结束)、响应信息(数据完整性校验码、处理结束)、包完整性校验码。The basic structure of the response check request is shown in Figure 8, including response category (end), response information (data integrity check code, processing end), and packet integrity check code.
本领域的技术人员容易理解，以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。It is easy for those skilled in the art to understand that the above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention, All should be included within the protection scope of the present invention.
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| CN201610814651.3ACN106255155B (en) | 2016-09-12 | 2016-09-12 | A data transmission method and system based on mobile internet |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN109257744A (en)* | 2018-11-05 | 2019-01-22 | 广东工业大学 | 5G data transmission method, system and 5G data send and receive device |
| CN109951447A (en)* | 2019-01-30 | 2019-06-28 | 合肥合远信息技术有限公司 | A kind of data transmission method and system based on intranet and extranet |
| CN110933159A (en)* | 2019-11-27 | 2020-03-27 | 中电装备山东电子有限公司 | File transmission method and system supporting breakpoint continuous transmission |
| CN113038071A (en)* | 2021-01-22 | 2021-06-25 | 创业慧康科技股份有限公司 | Medical video processing system for medical remote visiting system |
| CN113965466A (en)* | 2021-09-30 | 2022-01-21 | 广西中科曙光云计算有限公司 | Data transmission system adaptive to network bandwidth |
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| CN102427589A (en)* | 2012-01-01 | 2012-04-25 | 洛阳普天通信科技有限公司 | Method and system for binding a plurality of wireless networks to transmit large-traffic data |
| US8982901B2 (en)* | 2012-07-22 | 2015-03-17 | Imagination Technologies, Limited | Counter based fairness scheduling for QoS queues to prevent starvation |
| CA2789283A1 (en)* | 2012-09-04 | 2014-03-04 | Sebastien J.A. Roy | Ambnet: self-organized zero-config resilient wireless networking and streaming |
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| CN106603559A (en)* | 2016-12-30 | 2017-04-26 | 深圳市天辰防务通信技术有限公司 | Wireless communication terminal data transmission anti-interception method |
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| CN109257744A (en)* | 2018-11-05 | 2019-01-22 | 广东工业大学 | 5G data transmission method, system and 5G data send and receive device |
| CN109257744B (en)* | 2018-11-05 | 2021-11-26 | 广东工业大学 | 5G data transmission method and system and 5G data sending and receiving device |
| CN109951447A (en)* | 2019-01-30 | 2019-06-28 | 合肥合远信息技术有限公司 | A kind of data transmission method and system based on intranet and extranet |
| CN110933159A (en)* | 2019-11-27 | 2020-03-27 | 中电装备山东电子有限公司 | File transmission method and system supporting breakpoint continuous transmission |
| CN113038071A (en)* | 2021-01-22 | 2021-06-25 | 创业慧康科技股份有限公司 | Medical video processing system for medical remote visiting system |
| CN113965466A (en)* | 2021-09-30 | 2022-01-21 | 广西中科曙光云计算有限公司 | Data transmission system adaptive to network bandwidth |
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| CF01 | Termination of patent right due to non-payment of annual fee | Granted publication date:20190913 Termination date:20200912 |