Multi-satellite cooperative task planning method and device based on observation demand conflict degree

The invention relates to a multi-satellite cooperative task planning method and device based on an observation demand conflict degree, belongs to the technical field of remote sensing satellites, and solves the problem that resource use conflicts are presented when different observation tasks are executed in existing multi-satellite cooperative use. The method comprises the following steps: for each observation demand, calculating one or more observation opportunities according to an observation resource and an observation effective time interval matched with each observation demand; selecting a specific observation demand according to the number of the observation opportunities and the priority of the observation demand; calculating the number of observation demands corresponding to the observation opportunities having time sequence conflicts with the group of observation opportunities as a group of observation demand conflict degrees corresponding to the group of observation opportunities; and aiming at a s