Spacecraft embedded-type working procedure accelerating uplink method
A technology for operating programs and spacecraft, which is applied to the overall design of spacecraft and the field of space information processing systems, and can solve the problems of uninterrupted data transmission and time loss.
Active Publication Date: 2014-11-19
BEIJING INST OF SPACECRAFT SYST ENG
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Problems solved by technology
Due to the limitations of our country's ground measurement and control system, these data cannot be transmitted continuously and must be divided into data packets of a limited length for multiple uplinks. In this way, a large amount of data and multiple uplinks need to be compared and confirmed Due to the time loss caused by other reasons, it takes 5-6 hours to complete the transmission of 300K-500K Bytes data
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[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.
[0028] In order to make the advantages of the technical solution of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0029] like image 3 Shown, the implementation steps of the method invention are as follows:
[0030] 101. Design, implement and maintain software. figure 1 It is a system architecture diagram of flight software maintenance. The embedded CPU of...
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The invention relates to a spacecraft embedded-type working procedure accelerating uplink method. The uplink method comprises the steps of:(1) designing to implement maintenance software; (2) designing operation software to implement uplink injection, namely new flying software, wherein when the new flying software is linked, a code segment and a data segment are positioned in an RAM (random access memory), an initial address of the code segment is an address A in the RAM, uplink injecting data storage is met from the lowest end of the RAM to the address A, and the code segment, data segment and enough operation space of the new flying software are met from the address A to an RAM top address; (3) carrying out treatment on the new flying software in the step (2), and leading uplink data injection of a ground system to be reduced and accelerated; and (4) carrying out treatment on an executable code generated in a step (3.5) according to a data packet format established by the maintenance software, generating an uplink data packet of a ground measurement and control system, wherein the uplink data packet leads the new flying software to operate.
Description
technical field [0001] The invention relates to the field of space electronics, in particular to the overall design of a spacecraft and a space information processing system and method. Background technique [0002] At present, the flight software of domestic spacecraft is solidified in the PROM. Once an error is found in the software, the data in the PROM cannot be modified. Only the space in the RAM can be used to maintain the flight software and modify some or all of the programs. Utilizing the long-term power-on of spacecraft equipment during work, the data in RAM can be maintained for a long time without loss, ensuring that the programs placed in RAM can run for a long time. Among them, there is a system architecture for flight software maintenance such as figure 1 Shown: The CPU of the embedded computer is equipped with two PROM areas, among which PROM1 solidifies the flight software. When an error occurs in the flight software, the ground system can send an instructi...
Claims
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IPC IPC(8): G06F9/445
Inventor 唐自新陶利民翟君武李林
Owner BEIJING INST OF SPACECRAFT SYST ENG