A design method of time-division multiplexing multi-mode telemetry transmission

A design method and time-division multiplexing technology, which is applied in time-division multiplexing systems, transmission systems, multiplexing communications, etc. and other problems, to achieve the effect of meeting the needs of telemetry monitoring and saving the category of telemetry identification

Active Publication Date: 2020-06-05
航天科工空间工程发展有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

[0005] The invention provides a time-division multiplexing multi-mode telemetry transmission design method, which solves the problem of data downloading of two information collection devices, limited telemetry download bandwidth, and complex and changeable telemetry data sources

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  • A design method of time-division multiplexing multi-mode telemetry transmission

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Embodiment Construction

[0017] The design method of time-division multiplexing and multi-mode telemetry transmission of the present invention will be described in detail below for a test load system.

[0018] A design method for time-division multiplexing and multi-mode telemetry transmission. Firstly, the information flow direction of two information processing devices in the system is sorted out. In standby mode, the telemetry frame can only be processed by the external telemetry interface device. In the test mode, if the power is directly handed over to the information processing computer for frame transmission, the power supply and distribution management combination needs to send back the telemetry data of itself and the temperature controller to the information processing computers, creating an unnecessary burden on the information link. Therefore, in the test mode, considering the two factors of the number of telemetry and the rate of change, a certain bandwidth is allocated to each of the two...

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Abstract

The invention provides a time division multiplexing multi-mode telemetering transmission design method for solving the data downloading problem of two information collection devices, a limited telemetering downloading bandwidth and complex and variable telemetering data sources. The method comprises the following steps: grouping possible power-on combinations of a test load multi-mode system within a task period, and classifying the simultaneously powered on devices into a group, which is corresponding to a telemetering framing mode; determining the number of periodic multiframes in each modeas an odd number, screening out telemetering data to be transmitted in each mode, and packaging data with a high degree of importance into periodic telemetering frames; packaging random data downloading requirements within a system working period into random telemetering frames one by one; distinguishing different modes at fixed positions of the periodic telemetering frames and the random telemetering frames through different data identification codes; and sending the periodic telemetering frames or the random telemetering frames according to a telemetering data transmission period.

Description

technical field [0001] The invention relates to a time-division multiplexing multi-mode telemetry transmission design method, which is suitable for the telemetry transmission design of systems with tight telemetry bandwidth resources and complex and variable telemetry data sources. Background technique [0002] There are several different power-on combinations in the multi-mode system of a test load, and the telemetry data sources to be downloaded (time, voltage, current, temperature, equipment working status, communication status, key measurement data, etc.) The electrical state changes. According to the information interface status of the system, there are two information collection devices: the power supply and distribution management combination and the information processing computer. The power supply and distribution management combination is the telemetry output interface of the system, and the information processing computer is the system information Center. The po...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04J3/16H04L29/08
CPCH04J3/1682H04J3/1694H04L67/12H04Q2209/84
Inventor 郑玉成高奇胡泽岩
Owner 航天科工空间工程发展有限公司
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