Distributed data acquisition system for various data types
A distributed data and acquisition system technology, applied in the transmission system, electrical components, etc., can solve problems such as insufficient real-time performance, difficulty in integrating multiple interfaces and various test tools, and poor system scalability, so as to improve the real-time performance of the system , Improve scalability and reduce development difficulty
Inactive Publication Date: 2020-05-08
JIANGXI HONGDU AVIATION IND GRP
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The network architecture of this common data acquisition and processing system uses buses or network cables over long distances to achieve long-distance high-precision data transmission, but there are still problems with poor system scalability, insufficient real-time performance, multiple interfaces and various tests. Tool integration is difficult and other issues
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[0016] The following will combine Figure 1 to Figure 3 , clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only a specific embodiment of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0017] A typical distributed data acquisition system such as figure 2 As shown, the upper computer, the lower computer, and the collection nodes of the distributed data acquisition system are connected by Ethernet. Use the host computer monitoring software to control the acquisition configuration, start and stop the acquisition node work, etc.
[0018] Such as image 3 As shown, the data acquisition system data network is divided into multiple areas. The control area is used to send and receive...
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The invention provides a distributed data acquisition system for various data types. The distributed data acquisition system mainly comprises data acquisition nodes, a transmission network, a lower computer, an upper computer and a corresponding data transmission mechanism. According to the data transmission mechanism, interfaces and behaviors of data publishing, transmitting and receiving in a distributed system are standardized;a publishing / subscribing mechanism taking data as a center is defined; each distributed node can be used as a dispatcher and a subscriber or can be used as a dispatcher and a subscriber to exist at the same time; data circulated in the system takes the theme as a link, and only subscribers and publishers who have the same theme can perform data exchange; the subscribers and the publishers associated with the same theme perform data communication by configuring the same transmission rule. According to the data acquisition system, data acquisition parts are loosely coupled, the development difficulty of system integration is reduced, the expandability of the system is effectively improved, and the real-time performance of the system is improved to a certainextent.
Description
technical field [0001] The invention belongs to the technical field of network data collection and transmission, in particular to a distributed data collection system for multiple data types. Background technique [0002] The current data collection is mainly divided into two ways: centralized data collection and distributed data collection. Traditional distributed acquisition uses some acquisition devices as a node to collect data from sensors and other devices under test nearby, forms a data transmission network through a bus or network cable, and connects to the lower computer of the data acquisition system. The lower computer follows the corresponding protocol After receiving the data, it is sent to the host computer for analysis and processing. The network architecture of this common data acquisition and processing system uses buses or network cables over long distances to achieve long-distance high-precision data transmission, but there are still problems with poor sy...
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IPC IPC(8): H04L29/08
CPCH04L67/10
Inventor 张亚雄项国辉张梅梅陈林张弛江涛武琳曾行王晓坤翁雪花
Owner JIANGXI HONGDU AVIATION IND GRP