Double-loop distributed data acquisition and transmission system based on LVDS and RS-485 interfaces
A RS-485, distributed data technology, applied in the field of communication, can solve problems such as bulky volume and large system noise, and achieve the effects of low transmission power consumption, system noise reduction, and interference reduction
Active Publication Date: 2020-05-08
苏州联视泰电子信息技术有限公司
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[0010] The purpose of the present invention is to provide a dual-loop distributed data acquisition and transmission system based on LVDS and RS-485 interfaces, so as to solve the problems that the data acquisition and transmission system adopts a two-layer structure to cause large system noise and large volume
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[0029] 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, and do not limit the protection scope of the present invention.
[0030] figure 1 The architecture block diagram of the dual-loop distributed data acquisition and transmission system based on LVDS and RS-485 interfaces provided for the embodiment. see figure 1 , the dual-loop distributed data acquisition and transmission system based on LVDS and RS-485 interfaces provided by the embodiment includes a converging bridge module, a node processing module, and a digital-to-analog conversion module, wherein the converging bridge module communicates with multiple The node processing modules form a double loop; each node processing module mo...
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The invention discloses a double-loop distributed data acquisition and transmission system based on LVDS and RS-485 interfaces, which comprises a convergence bridging module, and is characterized by further comprising a plurality of node processing modules and a plurality of digital-to-analog conversion modules, wherein the convergence bridging module and the plurality of node processing modules form double loops through the two paths of expanded LVDS interfaces; each node processing module mounts a plurality of parallel analog-to-digital conversion modules through RS-485 interface; the convergence bridging module is used for controlling the node processing modules to work and processing core data; the node processing module is used for controlling the digital-to-analog conversion modulesto periodically acquire data, temporarily storing the acquired data, and uploading the acquired data to the convergence bridging module after the acquired data accumulates to a certain data volume; the analog-to-digital conversion module is used for acquiring and preprocessing a target signal and then uploading the target signal to the node processing module. The problems of high system noise andlarge size caused by a two-layer structure adopted by the data acquisition and transmission system can be solved.
Description
technical field [0001] The invention relates to the technical field of communication, in particular to a dual-loop distributed data collection and transmission system based on LVDS and RS-485 interfaces. Background technique [0002] In the traditional data acquisition and transmission system, during the data transmission process, due to the long transmission link of the system and the complex underwater environment, the data is easily disturbed by the outside world, and the system hardware itself is easily damaged in the variable underwater environment. [0003] Specifically, the existing data acquisition and transmission system adopts a two-layer structure, specifically including a bridge module on the first layer and sub-nodes on the second layer. The bridge module and the sub-nodes are connected through Ethernet, and the bridge module is mainly used for controlling nodes Work, the node is mainly used to collect and transmit data. Because the traditional data acquisition...
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IPC IPC(8): H04L12/42
CPCH04L12/42Y02D30/50
Inventor 吕杰崔莉
Owner 苏州联视泰电子信息技术有限公司