Autonomous dormancy and awakening control method for Mars rover

Abstract

The invention discloses an autonomous dormancy and awakening control method for a Mars rover, provides a basis for selecting an autonomous dormancy strategy under a relatively sufficient energy working condition or an autonomous dormancy strategy under an energy shortage working condition on a device, and improves the use flexibility of the autonomous dormancy strategy. According to the peak electric quantity of the Mars rover in each Mars day, whether the Mars rover needs to enter a dormant state or carry out a minimum working mode is judged, and the Mars rover can autonomously recover to a normal working mode from the minimum working mode after the energy condition is improved; the method is suitable for the Mars rover to sleep as soon as possible after sand and dust are detected on thefire surface, sufficient electric quantity can be kept after the Mars rover sleeps, and a basis is provided for charging in the minimum working mode after subsequent awakening to restore energy balance. In combination with the peak electric quantity of the Mars rover in each Mars day and the current real-time electric quantity of the Mars rover, whether the Mars rover needs to enter dormancy is judged together; the strategy is suitable for being used after awakening, and aims to use the storage battery as much as possible to maintain power supply without dormancy after awakening, and protect the storage battery from being over-discharged at the same time.

Description

technical field [0001] The invention belongs to the technical field of on-orbit autonomous operation control of spacecraft, and in particular relates to an autonomous sleep and wake-up control method for a Mars rover. Background technique [0002] China will launch a Mars rover in 2020 to patrol and explore the surface of Mars. The main constraint on the work on the fire surface of the Mars rover is energy. Due to the shortage of energy, even within the visible arc, the communication equipment on the Mars rover cannot be turned on for a long time, and the daily communication time is very limited. According to the mission plan, when the Mars rover has energy supplements during the fire day, it will perform more energy-intensive exploration tasks such as movement, perception, and detection; few detection tasks. [0003] The Mars rover relies on solar wing power generation to supplement energy, and the energy generation is closely related to the time and weather on Mars. The...

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Problems solved by technology

[0009] In view of this, the purpose of the present invention is to provide a method for controlling the autonomous sleep and wake-up of the Mars rover; first, to ensure that the Mars rover can retain sufficient power after sleep, and to provide a basis for restoring energy balance after subsequent wake-up; It is possible to keep the battery in the power supply state, and at the same time protect the battery from being over-discharged; again, it solves the problem that the communication window cannot communicate normally due to the unpredictability of sleep and wake-up times

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