WO2023184929A1 - 一种工业互联网多通道数据上传系统 - Google Patents
一种工业互联网多通道数据上传系统 Download PDFInfo
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- 238000011156 evaluation Methods 0.000 claims description 15
- 238000010606 normalization Methods 0.000 claims description 9
- 238000013480 data collection Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 18
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000011161 development Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/14—Multichannel or multilink protocols
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/38—Flow control; Congestion control by adapting coding or compression rate
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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
- H04L65/60—Network streaming of media packets
- H04L65/75—Media network packet handling
- H04L65/752—Media network packet handling adapting media to network capabilities
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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
- H04L65/60—Network streaming of media packets
- H04L65/75—Media network packet handling
- H04L65/765—Media network packet handling intermediate
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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
- H04L65/80—Responding to QoS
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/15—Setup of multiple wireless link connections
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0289—Congestion control
Definitions
- the invention relates to the field of communications, and in particular to an industrial Internet multi-channel data upload system.
- the traditional single-channel, single-mode data upload method has small coverage area, poor stability, and low bandwidth
- the traditional single-channel, single-mode data upload method does not reasonably distribute different data to different networks, and cannot take into account user fairness and network congestion control.
- the invention is an industrial Internet multi-channel data uploading system that utilizes a multi-channel, multi-mode method of simultaneously transmitting data to realize the integration of wireless communication networks, effectively solving the problems of small coverage area, poor stability and low bandwidth of single-channel and single-mode wireless networks. It can also achieve stable and high-speed transmission of network data.
- the purpose of the present invention is to provide an industrial Internet multi-channel data upload system to provide strong support for realizing stable and high-speed transmission of multimedia data.
- An industrial Internet multi-channel data upload system consists of three parts: a data collection module, a data processing module, and a data receiving module.
- the data collection module obtains image, video and other data through cameras, sensors and other equipment, and then sends the collected data to the data processing module.
- the data processing module initializes the priority of each module, selects the optimal network channel, then packages the data, adds header information and CRC check value, and then transmits the data to the data receiving module.
- the main steps for selecting the optimal network channel are as follows:
- Step 1) Calculate the decision matrices of the three channels.
- the calculation formula is as follows:
- z uv is determined by Satty scaling method
- Step 2 Calculate and obtain the subjectively determined weight.
- the calculation formula is as follows:
- Step 3 Calculate and obtain objectively determined weights.
- the calculation formula is as follows:
- s k,j is the normalization result of the network parameter value r k,j after normalization in the previous section
- E k is the information entropy of the evaluation parameter
- w is the final actual weight
- K is a constant, taking 1, v ⁇ [0,1];
- Step 4) Calculate and obtain the comprehensive evaluation value ⁇ of the wireless network, and select the network channel with the largest ⁇ value as the optimal network channel.
- the calculation formula is as follows:
- ⁇ j is the comprehensive evaluation value of network j
- w k is the actual comprehensive weight of the evaluation parameter k
- r k,j is the value of the evaluation parameter k of network j after normalization.
- the data receiving module mainly performs CRC calculation and check code comparison on the data packets, removes duplicate data packets, sorts the data packets, and finally displays the complete data.
- the present invention proposes an industrial Internet multi-channel data upload system.
- the system adopts multi-channel technology and superimposes wireless transmission modules to increase the wireless channel bandwidth and ensure the transmission quality of multimedia data.
- the present invention has the following beneficial effects:
- multi-channel data upload reduces the transmission burden of a single channel
- Figure 1 is a structural diagram of an industrial Internet multi-channel data upload system of the present invention
- Figure 2 is a flow chart of the multi-channel channel selection strategy in the data processing module
- Figure 3 is a flow chart of the data receiving module.
- the invention is an industrial Internet multi-channel data uploading system that can realize stable and high-speed uploading of multimedia data through a data collection module, a data processing module and a data receiving module.
- the data acquisition module mainly obtains image, video and other data through cameras, sensors and other equipment;
- the data processing module mainly initializes the priority of each module, selects the optimal network channel, then packages the data, and adds header information and CRC check value;
- the data receiving module mainly performs CRC calculation and check code comparison on the data packets, removes duplicate data packets, sorts the data packets, and finally displays the complete data.
- the data processing module initializes the priority of each module, selects the optimal network channel, then packages the data, and adds header information and CRC check value; the main steps are as follows:
- Step 1) Calculate the decision matrices of the three channels.
- the calculation formula is as follows:
- z uv is determined by Satty scaling method
- Step 2 Calculate and obtain the subjectively determined weight.
- the calculation formula is as follows:
- Step 3 Calculate and obtain objectively determined weights.
- the calculation formula is as follows:
- s k,j is the normalization result of the network parameter value r k,j after normalization in the previous section
- E k is the information entropy of the evaluation parameter
- w is the final actual weight
- K is a constant, taking 1, v ⁇ [0,1];
- Step 4) Calculate and obtain the comprehensive evaluation value ⁇ of the wireless network, and select the network channel with the largest ⁇ value as the optimal network channel.
- the calculation formula is as follows:
- ⁇ j is the comprehensive evaluation value of network j
- w k is the actual comprehensive weight of the evaluation parameter k
- r k,j is the value of the evaluation parameter k of network j after normalization.
- the data receiving module performs CRC calculation and check code comparison on the data packets, removes duplicate data packets, sorts the data packets, and finally displays the complete data;
- Step 1) After receiving the data packet, the module performs CRC calculation on the data packet and compares it with the final CRC check code of the data packet;
- Step 2 If the school bag passes the CRC check code, the complete data will be obtained by decoding the header information; otherwise, the data packet will be discarded;
- Step 3 Display the completed data.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computer Security & Cryptography (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
本发明公开了一种工业互联网多通道数据上传系统,由数据采集模块、数据处理模块、数据接收模块三个部分组成;系统采用多通道技术,通过叠加无线传输模块数量以提高无线信道带宽,保证了多媒体数据的传输质量。本发明具有优越的数据传输能力,保证了多媒体数据传输的质量;此外,相较于传统的数据传输方法,本发明更适合于工业互联网环境下的数据传输,实现了较快的数据传输速率。
Description
本发明涉及通信领域,尤其涉及一种工业互联网多通道数据上传系统。
随着工业4.0概念的提出,智能化成为工业发展的必然趋势,工业互联网应运而生。随着工业互联网的进一步发展,工业环境下网络设备、传感器越来越多,产生了大量异构数据类型。然而传统的数据传输采用了单通道数据传输,造成信道拥塞,可能导致事故发生,从而造成严重损失。目前,网络数据上传方法主要存在以下问题:
1、传统的单通道、单模式数据上传方法覆盖面积小、稳定性差、带宽低等;
2、传统的单通道、单模式数据上传方法没有考虑多路同传的问题;
3、传统的单通道、单模式数据上传方法没有合理的将不同的数据分布的不同网络,不能兼顾用户公平性和网络拥塞控制。
伴随着技术的不断发展,移动通信越来越大众化,网络之间的融合也逐渐应用在更多的领域中;多通道、多模式的数据上传方式解决了传统的数据上传方式中覆盖面积小、稳定性差、网络拥塞等问题。本发明为一种工业互联网多通道数据上传系统,利用多通道、多模式同时传输数据的方法实现无线通信网络的融合,有效解决了单通道、单模式无线网络覆盖面积小、稳定性差、带宽低等问题,还能够实现网络数据的稳定、高速传输。
发明内容
本发明的目的在于提供一种工业互联网多通道数据上传系统,为实现多媒体数据的稳定、高速传输提供有力的支撑。
实现本发明的技术解决方案为:
一种工业互联网多通道数据上传系统,由数据采集模块、数据处理模块、数据接收模块三个部分组成。
进一步地,数据采集模块通过摄像头、传感器等设备获取图像、视频等数据,然后将采集的数据发送给数据处理模块。
进一步地,数据处理模块通过初始化每个模块的优先级,选择最优网络信道,然后对数据进行打包,并添加包头信息和CRC校验值,然后将数据传送给数据接收模块。
选择最优网络信道的主要步骤如下:
步骤1)计算三个信道的决策矩阵,计算公式如下:
Z=[z
uv]
其中,z
uv采用Satty标度法来确定;
步骤2)计算获得主观确定权重,计算公式如下:
进行归一化:
步骤3)计算获得客观确定权重,计算公式如下:
E
k=-K∑
js
k,jln s
k,j
w=vw'+(1-v)w
EW
步骤4)计算获得无线网络的综合评价值α,选择α最大值的网络信道作为最优网络信道,计算公式如下:
其中,α
j是网络j的综合评价值,w
k是评价参数k的实际综合权重,r
k,j是标准化后网络j的评价参数k的值。
进一步地,数据接收模块主要通过对数据包进行CRC计算和校验码比对,去除掉重复的数据包后对数据包进行排序,最终显示出完整的数据。
本发明提出了一种工业互联网多通道数据上传系统,该系统采用多通道技术,通过叠加无线传输模块以提高无线信道带宽,保证多媒体数据的传输质量。
与现有技术相比,本发明具有以下有益效果:
1、具有覆盖面积广、稳定性强、带宽高等优点;
2、考虑到了数据传输时多路同传的问题,通过多通道数据上传,减小了单个通道的传输负担;
3、通过多通道数据传输,兼顾了用户公平性和网络拥塞控制,减少了用户视频失真,提高了数据传输质量。
图1是本发明一种工业互联网多通道数据上传系统的结构图;
图2是数据处理模块中多通道信道选择策略的流程图;
图3是数据接收模块的流程图。
本发明的较佳实施方式
应该指出,以下详细说明都是示例性的,旨在对本发明提供进一步的说明。除非另有指明,本文使用的所有技术和科学术语具有与本发明所属技术 领域的普通技术人员通常理解的相同含义。
本发明一种工业互联网多通道数据上传系统,通过数据采集模块、数据处理模块、数据接收模块,可以实现多媒体数据的稳定、高速上传。
如图1所示,数据采集模块主要通过摄像头、传感器等设备获取图像、视频等数据;
数据处理模块主要通过初始化每个模块的优先级,选择最优网络信道,然后对数据进行打包,并添加包头信息和CRC校验值;
数据接收模块主要通过对数据包进行CRC计算和校验码比对,去除掉重复的数据包后对数据包进行排序,最终显示出完整的数据。
如图2所示,数据处理模块通过初始化每个模块的优先级,选择最优网络信道,然后对数据进行打包,并添加包头信息和CRC校验值;主要步骤如下:
步骤1)计算三个信道的决策矩阵,计算公式如下:
Z=[z
uv]
其中,z
uv采用Satty标度法来确定;
步骤2)计算获得主观确定权重,计算公式如下:
进行归一化:
步骤3)计算获得客观确定权重,计算公式如下:
E
k=-K∑
js
k,jln s
k,j
w=vw'+(1-v)w
EW
步骤4)计算获得无线网络的综合评价值α,选择α最大值的网络信道作为最优网络信道,计算公式如下:
其中,α
j是网络j的综合评价值,w
k是评价参数k的实际综合权重,r
k,j是标准化后网络j的评价参数k的值。
如图3所示,数据接收模块通过对数据包进行CRC计算和校验码比对,去除掉重复的数据包后对数据包进行排序,最终显示出完整的数据;
主要步骤如下:
步骤1)模块在接收数据包后,对数据包进行CRC计算,同时与数据包最后的CRC校验码进行比对;
步骤2)CRC校验码通过的书包通过解包头信息,得到完整的数据;否则丢弃数据包;
步骤3)对完成的数据进行显示。
以上实施方式仅为说明本发明的技术思想,并不用于限制本发明的保护范围,凡是按照本发明提出的技术思想,在本发明技术方案基础上所做的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
Claims (4)
- 一种工业互联网多通道数据上传系统,其特征在于,所述系统由数据采集模块、数据处理模块、数据接收模块三个部分组成。
- 根据权利要求1所述的一种工业互联网多通道数据上传系统,其特征在于,所述数据采集模块通过摄像头、传感器等设备获取图像、视频等数据,然后将采集的数据发送给数据处理模块。
- 根据权利要求1所述的一种工业互联网多通道数据上传系统,其特征在于,所述数据处理模块通过初始化每个模块的优先级,选择最优网络信道,然后对数据进行打包,并添加包头信息和CRC校验值;选择最优网络信道的主要步骤如下:步骤1)计算三个信道的决策矩阵,计算公式如下:Z=[z uv]其中,z uv采用Satty标度法来确定;步骤2)计算获得主观确定权重,计算公式如下:进行归一化:步骤3)计算获得客观确定权重,计算公式如下:E k=-K∑ js k,jln s k,jw=vw'+(1-v)w EW步骤4)计算获得无线网络的综合评价值α,选择α最大值的网络信道作为最优网络信道,计算公式如下:其中,α j是网络j的综合评价值,w k是评价参数k的实际综合权重,r k,j是标准化后网络j的评价参数k的值。
- 根据权利要求1所述的一种工业互联网多通道数据上传系统,其特征在于,所述数据接收模块通过对数据包进行CRC计算和校验码比对,去除掉重复的数据包后对数据包进行排序,最终显示出完整的数据。
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104427218A (zh) * | 2013-09-02 | 2015-03-18 | 北京计算机技术及应用研究所 | 超高清ccd图像多通道采集与实时传输系统及方法 |
CN107171978A (zh) * | 2017-05-26 | 2017-09-15 | 中国科学院西安光学精密机械研究所 | 千兆以太网的多通道数据循环采集系统及采集方法 |
CN110811610A (zh) * | 2019-11-04 | 2020-02-21 | 北京信息科技大学 | 一种多通道生物电信号采集系统及其控制方法 |
WO2020244175A1 (zh) * | 2019-06-05 | 2020-12-10 | 北京京投卓越科技发展有限公司 | T-net全制式单线多源数据采集传输系统 |
CN113034341A (zh) * | 2021-05-25 | 2021-06-25 | 浙江双元科技股份有限公司 | 一种用于Cameralink高速工业相机的数据采集处理电路 |
CN113641612A (zh) * | 2021-08-16 | 2021-11-12 | 中国科学院近代物理研究所 | 一种多通道数据实时处理设备 |
CN114630450A (zh) * | 2022-03-29 | 2022-06-14 | 江苏拓邮信息智能技术研究院有限公司 | 一种工业互联网多通道数据上传系统 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103313354B (zh) * | 2013-05-22 | 2016-04-13 | 南京邮电大学 | 基于四种权值向量的异构网络选择方法 |
CN107659977B (zh) * | 2017-10-27 | 2019-12-10 | 西安电子科技大学 | 基于vlc的室内异构网络接入选择方法 |
CN108024307B (zh) * | 2017-12-03 | 2020-06-02 | 北京邮电大学 | 一种基于物联网的异构网络接入选择方法及系统 |
CN111510879B (zh) * | 2020-04-20 | 2022-03-15 | 武汉科技大学 | 基于多约束效用函数的异构车联网网络选择方法及系统 |
CN112566196B (zh) * | 2020-11-04 | 2023-11-03 | 北京中电飞华通信有限公司 | 一种基于智能电网的异构网络接入选择方法及相关设备 |
CN112566219B (zh) * | 2020-12-03 | 2023-05-19 | 国网甘肃省电力公司信息通信公司 | 一种电力通信异构网络选择的权重确定方法 |
CN114158102B (zh) * | 2021-10-25 | 2023-06-30 | 国网天津市电力公司电力科学研究院 | 面向馈线自动化实时控制的无线异构通信网络切换方法 |
CN114173359B (zh) * | 2021-12-09 | 2023-07-14 | 重庆邮电大学 | 一种用于工业物联网环境下的异构网络资源调度方法 |
-
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Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104427218A (zh) * | 2013-09-02 | 2015-03-18 | 北京计算机技术及应用研究所 | 超高清ccd图像多通道采集与实时传输系统及方法 |
CN107171978A (zh) * | 2017-05-26 | 2017-09-15 | 中国科学院西安光学精密机械研究所 | 千兆以太网的多通道数据循环采集系统及采集方法 |
WO2020244175A1 (zh) * | 2019-06-05 | 2020-12-10 | 北京京投卓越科技发展有限公司 | T-net全制式单线多源数据采集传输系统 |
CN110811610A (zh) * | 2019-11-04 | 2020-02-21 | 北京信息科技大学 | 一种多通道生物电信号采集系统及其控制方法 |
CN113034341A (zh) * | 2021-05-25 | 2021-06-25 | 浙江双元科技股份有限公司 | 一种用于Cameralink高速工业相机的数据采集处理电路 |
CN113641612A (zh) * | 2021-08-16 | 2021-11-12 | 中国科学院近代物理研究所 | 一种多通道数据实时处理设备 |
CN114630450A (zh) * | 2022-03-29 | 2022-06-14 | 江苏拓邮信息智能技术研究院有限公司 | 一种工业互联网多通道数据上传系统 |
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