High-precision active sonar display control method based on VxWorks
A display control method, active sonar technology, applied in program control devices, instruments, electrical digital data processing, etc., can solve problems such as low accuracy and system efficiency, and achieve improved accuracy, implementation of process synchronization, and synchronization of stable control synchronization. Effect
Active Publication Date: 2022-04-12
THE 715TH RES INST OF CHINA SHIPBUILDING IND CORP
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Problems solved by technology
[0011] The purpose of the present invention is to solve the problem of accuracy and system efficiency when the system timer is used in the current embedded system to realize the detection and display control function of active sonar real-time detection data. Low defects, but provide a high-precision active sonar display control method based on VxWorks
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[0027] The present invention will be described in detail below in conjunction with accompanying drawing:
[0028] Such as figure 1 As shown, the present invention introduces the auxiliary clock function of the VxWokrs system to realize the real-time control detection and distribution of active sonar data, and at the same time perform internal correlation in the control process to ensure the consistency and stability of data and information. The auxiliary clock is implemented under the VxWokrs system by using an additional interrupt of a timer different from the system clock, applying the precise clock function of the embedded real-time system, and improving the information display and processing capabilities of the active sonar system during real-time detection , and the ability to accurately detect data and information when the system is in high data throughput. Using the auxiliary clock, the interval between each active sonar scan line can be precisely controlled, and the d...
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The invention provides a high-precision active sonar display control method based on VxWorks, an auxiliary clock function of a VxWorks system is introduced, real-time control detection and distribution of active sonar data are realized, internal association is carried out in a control process, and consistency and stability of data and information are ensured. The auxiliary clock realizes the function by utilizing additional interruption of a timer different from a system clock under a VxWokrs system, and improves the information display and processing capability of the active sonar system during real-time detection by applying the accurate clock function of an embedded real-time system, so that the real-time detection accuracy of the active sonar system is improved. And the accurate detection capability of data and information when the system is in high data throughput is realized. By using the auxiliary clock, the interval of the scanning lines of the active sonar can be accurately controlled each time, and the detection period between adjacent data is shortened to a greater extent.
Description
technical field [0001] The invention relates to, mainly, a high-precision active sonar display control method based on VxWorks. Background technique [0002] VxWokrs is an embedded real-time operating system with high reliability and high real-time characteristics, and is widely used in communication, military and other fields that require high real-time and reliability. [0003] Active sonar mainly uses the launch array to emit sound waves. By receiving the echo of the target, the time difference of the echo is used to calculate the azimuth and distance of the target. The fluctuation of the time will lead to the fluctuation of the calculation error. Acoustic time precision control is relatively precise, and correspondingly higher requirements are put forward for the time precision of the active processing process after launch. With the continuous development of sonar detection technology, the ability of data and signal processing has been continuously enhanced, and the lev...
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Inventor 潘以晖王蕾余杰孙晨辉杜庆宣刘鹏
Owner THE 715TH RES INST OF CHINA SHIPBUILDING IND CORP