Task allocation method for multi-probe star sensor multi-core system and medium

Abstract

A task allocation method for a multi-probe star sensor multi-core system comprises the following steps that S1, in any period, a master core can obtain the number of loads of all slave cores in the next period, sorts all the slave cores and then enters the next period; S2, after any slave core K1 completes the load identification task, the master core obtains the remaining time in the period according to the interruption time of the slave core K1; S3, the master core obtains the number M of load identification tasks which can be completed by the slave cores K1 in the remaining time of the period according to the sorting of the slave cores in the step S1 and the remaining time of the period in the step S2, and then the master core allocates the last M load identification tasks of the slavecore K2 with the highest load number to the slave cores K1; and finally, the master core updates the sequence of all the slave cores in the S1 according to the redistributed load quantity; and S4, thesteps S2 to S3 are repeated until the load identification tasks of all the slave cores are completed. According to the method, the purpose of maximizing the real-time balance of the load of the slavecore task can be achieved.

Description

technical field [0001] The invention relates to a multi-probe star sensor multi-core system task allocation method and a medium, belonging to the multi-probe star sensor technical field. Background technique [0002] The multi-probe star sensor can identify multiple pointed sky areas at the same time, and use the multi-core system to process the identification tasks of each sky area in parallel; then use one core as the main core, and the task of the main core is to forecast the attitude, Merge the identification results of each slave core sky area, etc.; due to the different orientation of the sky area, the number of navigation stars in each sky area varies greatly, resulting in a large difference in the identification and matching workload of each sky area, which results in the task load of each slave core Unbalanced; within one cycle, the task of the slave core with heavy load may overtime, and the slave core with light load has a lot of idle time, which seriously restric...

AI Technical Summary

Problems solved by technology

[0002] The multi-probe star sensor can identify multiple pointed sky areas at the same time, and use the multi-core system to process the identification tasks of each sky area in parallel; then use one core as the main core, and the task of the main core is to forecast the attitude, Merge the identification results of each slave core sky area, etc.; due to the different orientation of the sky area, the number of navigation stars in each sky area varies greatly, resulting in a large difference in the identification and matching workload of each sky area, which results in the task load of each slave core Unbalanced; within one cycle, the task of the heavy-load slave core may time out, and the light-load slave core has a lot of idle time, which seriously restricts the detection quality and application effect of the multi-probe star sensor

Images