Control method for positioning and collimation integrated equipment tasks based on VxWorks
A control method and task technology, which is applied in the control field of positioning and aiming integrated equipment tasks, can solve problems such as high complexity, poor reliability, and poor real-time performance, and achieve the effects of reducing complexity, avoiding loss, and ensuring accuracy.
Inactive Publication Date: 2018-11-02
BEIJING INST OF SPACE LAUNCH TECH +1
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Problems solved by technology
[0004] In order to solve the problems of poor reliability, poor real-time performance, and high complexity existing in the existing control methods for positioning and targeting integrated equipment tasks, the present invention innovatively provides a VxWorks-based control method for positioning and targeting integrated equipment tasks, and through Task priority allocation, idle time utilization, and public resource scheduling have completely solved the above technical problems, not only improving positioning and targeting accuracy, but also effectively avoiding data errors and loss, and reducing the complexity of the control method
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[0027] The VxWorks-based control method of the positioning and aiming integrated equipment task of the present invention will be explained and illustrated in detail below in conjunction with the accompanying drawings.
[0028] The VxWork operating system is a Unix-like high-performance embedded real-time operating system developed by Wind River System in the United States. It has a highly tailorable microkernel structure, efficient multi-task scheduling performance and flexible inter-task communication performance. . VxWorks is an operating system based on preemptive multi-task scheduling, and its real-time task switching can meet the time limit requirements for responding to emergencies.
[0029] VxWorks has excellent real-time and good reliability, so the present invention applies the VxWorks operating system to the positioning and aiming integrated equipment (including inertial navigation equipment and aiming equipment). Such as figure 1 As shown, this embodiment specific...
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The invention discloses a control method for positioning and collimation integrated equipment tasks based on VxWorks. The control method comprises the following steps of setting priorities, specifically, setting a priority for each task, and ranking each task based on priorities according to a descending order, thereby forming a first task sequence; re-ranking the tasks, specifically, performing the tasks of which operation resource occupation quantity is greater than a preset value within a preset time period, and ranking the tasks preformed within the preset time period based on the resourceoccupation quantity according to an ascending order, thereby forming a second task sequence; re-ranking the tasks based on the first task sequence and the second task sequence, thereby forming a third task sequence; and performing each task, specifically, starting performing each task according to a task ranked sequence of the third task sequence. According to the method, in task priority allocation, idle time utilization and public resource scheduling modes, the control over the positioning and collimation integrated equipment tasks is realized creatively. The equipment working reliability and timeliness are effectively ensured.
Description
technical field [0001] The invention relates to the technical field of positioning and aiming integration control, more specifically, the invention is a VxWorks-based control method for positioning and targeting integration equipment tasks. Background technique [0002] At present, the positioning and targeting integrated equipment has the characteristics of multiple data sources, large data volume, and high communication frequency. In the face of such a complex situation, conventional control methods can only barely cope with complex algorithms. Although they can basically meet the needs, due to conventional There are still technical defects in the control method, which will not only affect the accuracy of the positioning and targeting system, but also cause data loss. Therefore, the existing control methods for positioning and targeting integrated equipment tasks have disadvantages such as poor reliability, poor real-time performance, and high complexity. [0003] Therefo...
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IPC IPC(8): G06F9/48G06F9/50
CPCG06F9/4881G06F9/5038
Inventor 赵琳康冰卫瑞高艳郑洋董志涛董彦维刘希强段祉鸿朱曦曼陈令刚
Owner BEIJING INST OF SPACE LAUNCH TECH