Nano satellite remote-measuring and remote-controlling method capable of switching communication path

A technology for satellite telemetry and switching communication, which is applied in the field of satellite telemetry and remote control processing, and can solve the problems of loss, failure of on-board tasks, and difficulties in multi-mode redundancy of on-board computers.

Active Publication Date: 2016-07-27
哈尔滨工大卫星技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the reliability of the on-board computer is particularly important. When the on-board computer fails, the on-board mission cannot be carried out normally, and the ground also loses the way to understand the in-orbit operation status of other subsystems
At present, the rel

Method used

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  • Nano satellite remote-measuring and remote-controlling method capable of switching communication path
  • Nano satellite remote-measuring and remote-controlling method capable of switching communication path
  • Nano satellite remote-measuring and remote-controlling method capable of switching communication path

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specific Embodiment approach 1

[0015] Specific implementation mode 1. Combination figure 1 and figure 2 Describe this embodiment, a nano-satellite telemetry remote control method that can switch communication paths described in this embodiment, the method is based on the intra-satellite field bus of multi-master communication, the specific steps of the method are:

[0016] Step 1. The ground measurement and control station judges whether the on-board computer is faulty by checking whether the update frequency and communication of the telemetry data sent by the on-board computer of the satellite system are normal. If the on-board computer is working normally, go to step 2, and if the on-board computer is faulty, go to step 3 ;

[0017] Step 2, multiple subsystems of the satellite communicate with the ground measurement and control station through the on-board computer;

[0018] Uplink data transmission process: The ground measurement and control station sends the remote control signal to the on-board ...

specific Embodiment approach 2

[0031] Specific embodiment 2. This embodiment is a further description of the nano-satellite telemetry and remote control method with switchable communication paths described in the specific embodiment 1. The satellite subsystem rewrites the telemetry data according to the received telemetry forwarding target address instruction. The location where the target address is stored is the non-volatile memory of the satellite subsystem.

[0032]For telemetry forwarding, the telemetry forwarding target address is stored in the non-volatile memory of each subsystem. The default target address is the bus address of the on-board computer, and the on-board computer completes the processing and forwarding of the telemetry data. The ground detects the working status of each subsystem of the satellite based on the satellite telemetry data. When the telemetry data of each subsystem of the ground station is not updated for a long time and the communication between the ground station and the te...

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Abstract

A nano satellite remote-measuring and remote-controlling method capable of switching communication path relates to a satellite remote-measuring and remote-controlling processing method. Without increasing the cost and the complexity of the satellite, the ground also can remotely measure and control the satellite when a malfunction occurs on an on-board computer. In this method, through detecting whether the updating frequency and the communication of remote-measuring data sent by the on-board computer of a satellite system is normal or not, a ground tracking telemetry control station judges whether a malfunction occurs on the on-board computer or not; when a malfunction occurs, the ground tracking telemetry control station directly communicates with a plurality of sub-systems of the satellite through a measuring and controlling sub-system. The method provided by this invention is applicable to the remote-measuring and remote-controlling data transmission of the nano satellite.

Description

technical field [0001] The invention relates to a satellite telemetry and remote control processing method. Background technique [0002] During the satellite's in-orbit operation, telemetry data is the way for the ground to understand the working status of the satellite, and remote control commands are an important means for the ground to control the satellite's operating status. Usually, the processing of the remote control task is completely taken care of by the on-board computer, and the communication between the stars is in a master-slave manner. The on-board computer acts as the host, periodically accessing the lower computer nodes to obtain telemetry data frames, and to frame and store real-time and delayed telemetry; the uplink remote control commands on the ground are also processed and forwarded with the on-board computer. Therefore, the reliability of the on-board computer is particularly important. When the on-board computer fails, the on-board mission cannot be...

Claims

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Application Information

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IPC IPC(8): H04B7/185
CPCH04B7/18502H04B7/18515H04B7/18517H04B7/18586
Inventor 陈健夏开心韦明川王峰冯田雨俞阳邱实
Owner 哈尔滨工大卫星技术有限公司
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