Method for uploading and processing electric load task on small satellite

A technology of electronic load and processing method, which is applied in the field of satellite communication, can solve the problems of short transit time and short remote control time of small satellites, and achieve the effects of good flexibility, avoiding adverse effects, and convenient operation

Active Publication Date: 2011-02-09
AEROSPACE DONGFANGHONG SATELLITE
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Problems solved by technology

However, compared with large satellites, small satellites also have some disadvantages. For example, the orbit of small satellites is generally low orbit, and the transit time is short, so the remote control time for small satellites is relatively short. For some tasks, it is necessary to inject the payload on the controllable orbit in advance.

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  • Method for uploading and processing electric load task on small satellite
  • Method for uploading and processing electric load task on small satellite
  • Method for uploading and processing electric load task on small satellite

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Embodiment Construction

[0017] For multi-task payloads (such as remote sensing electronic payloads), the amount of data in one mission may be relatively large. According to the current requirements for the star remote control data injection format, the length of the data field is only 9 bytes, 57 bytes, and 121 bytes. 249 bytes in four lengths. At present, the largest frame of data that can be generated by electronic payloads may only be 249 bytes, and the amount of data for more complex electronic payload tasks is far greater than this. For tasks that exceed the maximum number of bytes in a frame, there is a problem with the task annotation mechanism and processing.

[0018] like figure 1 As shown, it is a flow chart of the method for adding and processing payload tasks of the present invention. The user puts forward the task plan to be executed according to the demand, and the ground station generates the task package data. The ground judges whether the generated task data package exceeds the dat...

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Abstract

The invention provides a method for uploading and processing an electric load task on a small satellite. The method comprises the step of dividing each electric load task into a plurality of data frames; continuously transmitting each data frame to the satellite through a ground station according to a sequence in dividing or a disordered sequence when the satellite enters a controllable region. After all the data frames are completely and successfully received, a load lower computer on the satellite correspondingly combines the received data frames to recover each load task, sequences the load tasks according a preset execution time to form a task execution sequence table, executes corresponding load tasks in a regulated time interval according to the task execution sequence table, and updates the task execution sequence table based on the task execution conditions. When the load lower computer is interrupted and requires power off, the updated task sequence table is saved. The method solves the problem of uploading and effectively processing multiple load tasks, and has the characteristics of simple operation, high reliability and good flexibility.

Description

technical field [0001] The invention belongs to the field of satellite communication (remote sensing), and relates to an on-orbit injection method for satellite tasks. Background technique [0002] Modern small satellites rely on the rapid development of high and new technologies such as microelectronics, microcomputers, micromachines, new materials and new processes, and apply new design concepts and scientific processing methods to form and have light weight, small size, and research and development. It has the characteristics of low launch cost, good performance, short development cycle, flexible launch, and low-orbit operation. Specifically, its advantages compared with traditional large satellites are as follows: (1) light weight and small size. (2) The development cycle is short and the cost is low. (3) The launch is flexible, the activation speed is fast, and the invulnerability is strong. (4) Satellite technical performance is high. However, compared with large s...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04B7/185
Inventor 张洪源袁仕耿
Owner AEROSPACE DONGFANGHONG SATELLITE
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