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A distributed POS data reliability transmission system and method

A POS data and transmission system technology, applied in the direction of digital transmission system, transmission system, adjustment of transmission mode, etc., can solve the problems of increasing the complexity of data transmission, difficult to meet design requirements, data transmission conflicts, etc., to achieve convenient distinction and ensure reliability Sexuality, the effect of improving processing power

Active Publication Date: 2018-08-17
BEIHANG UNIV
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Problems solved by technology

Distributed POS data has a variety of data types, so it needs to be classified and processed; secondly, it is very necessary to verify the data, and the traditional verification method has been difficult to meet the design requirements; moreover, it is easy to cause load random data transmission requirements. Data transmission conflicts cause confusion in data transmission; different data transmission methods are required for different data receivers, which greatly increases the complexity of data transmission

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  • A distributed POS data reliability transmission system and method
  • A distributed POS data reliability transmission system and method
  • A distributed POS data reliability transmission system and method

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Embodiment Construction

[0020] Such as figure 1 As shown, a kind of distributed POS data reliability transmission system of the present invention comprises three parts of data acquisition module, data processing module and data module, wherein data acquisition module 1 carries out buffering process to all kinds of data that data processing board transmits; The cached data is transmitted to the data processing module 2 . Data classification and judgment in the data processing module 2 uses the data packet header identifier to distinguish different data. Therefore, when receiving data, the data type is distinguished through the inspection of the data packet header. The data type is mainly divided into five categories: IMU raw data, GPS data, real-time Navigation Data, Periodic Navigation Results Data, and System Status Data. Whether the data processing module 2 contains a priority identifier is judged. Since the external device needs random real-time data, in order to meet the real-time requirements o...

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Abstract

The invention discloses a distributed type POS data reliability transmission system and method. The method comprises the steps of data obtaining, data processing and data sending. Data obtaining achieves data caching and caching data receiving; the data processing comprises the steps that firstly, data classification is achieved through identifiers in an analysis data package, then priority is judged, a priority interrupt request is processed, data integrity and data structure correctness are checked through data verification, and finally data are packed; data sending comprises the step that data are sent to a receiver by selecting different interface modes according to different data types. Multiple data sources are classified and logically judged, data real-time performance and reliable transmission are achieved through data priority judgment and data verification, and the system and method have important practical significance to implementation of integrated research and development of measurement of a distributed POS.

Description

technical field [0001] The present invention relates to a distributed POS data reliability transmission system and method, which can be applied to distributed POS (Position and Orientation System, position and attitude measurement system), and can also be applied to inertial navigation, inertial / GPS (Global Position System, global Positioning system) data communication of integrated navigation system. Background technique [0002] High-precision POS can provide high-frequency, high-precision time and space reference information for high-resolution aerial remote sensing systems, and improve imaging accuracy and efficiency through motion error compensation. With the increasing demand for high-resolution imaging in aerial remote sensing, new high-efficiency multi-task imaging payload joint imaging technology, long-baseline microwave payload interferometry and array technology have gradually become effective means to improve imaging efficiency and resolution. The traditional si...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00
CPCG01C21/00G01S19/42H04L1/0006H04L1/0079
Inventor 朱庄生刘艳群粟昆
Owner BEIHANG UNIV