Method for realizing receiving completeness of telemeter data

Abstract

The invention discloses a method for realizing the receiving completeness of telemeter data, which is characterized in that: a telemeter frame marker bit TM_INT is arranged in a telemeter interrupt service routine, so the interrupt processing time is shorter, the marker TM_INT is inquired in the telemeter interrupt service routine, telemeter data package is proceeded, the telemeter data which is packaged at two adjacent times is stored in two temporary buffering areas which are arranged in Static Random Access Memory (SRAM), then the TM-POINT is counted according to the current telemeter path, the packaged telemeter data stored in the two temporary buffering areas are filled to a double-port random access memory (RAM), so the data completeness is guaranteed, and since the interrupt processing time is very short, the interrupt contradiction problem can be reduced, and the influence on the asynchronous communication of parts can be avoided; and meanwhile, relative to a relevant interrupt protection way, the method avoids the operation for frequently switching on and switching off the interrupt, so the complication of the system and the software time sequence can be reduced, and the completeness problem of the telemeter data can be solved.

Description

technical field [0001] The invention relates to a method for realizing the integrity of telemetry data reception, in particular to a method for realizing the integrity of telemetry data reception when the spacecraft control period is inconsistent with the telemetry period, and belongs to the field of aerospace control. Background technique [0002] The integrity requirements of telemetry data are the basis for data interpretation and analysis during spacecraft flight, and provide an important prerequisite for spacecraft flight control and operation and maintenance. At present, there are mainly two methods to realize the telemetry function in the mission of the spacecraft control system: (1) Pack and send the telemetry data by querying. This method is simple to implement and has no problems such as interrupt conflicts. However, if the control cycle is fast and the telemetry cycle is slow, all the data in each control cycle cannot be transmitted to the ground through telemetry...

AI Technical Summary

Problems solved by technology

[0003] The problem solved by the technology of the present invention is: to overcome the deficiencies of the prior art, provide a method for realizing the integrity of telemetry data reception, and solve the problem of ensuring the integrity of telemetry data in the asynchronous slow telemetry of fast-period changing data

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