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Multi-channel digital quantity acquisition and processing anti-collision method and system of multiple sets of inertial navigation systems

An inertial navigation system and digital quantity technology, applied in the field of data processing, can solve problems such as task conflicts, loss of inertial navigation data frames, failure to complete inertial navigation system testing and verification, etc., to improve the accuracy of data collection and improve the speed of data processing , Improve the effect of testing and production efficiency

Active Publication Date: 2020-06-16
航天科工惯性技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, when the test software collects and processes the inertial navigation data, it is easy to generate task conflicts, resulting in the loss of the collected inertial navigation data frames, errors, etc., and it is impossible to complete the test and verification of the inertial navigation system

Method used

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  • Multi-channel digital quantity acquisition and processing anti-collision method and system of multiple sets of inertial navigation systems
  • Multi-channel digital quantity acquisition and processing anti-collision method and system of multiple sets of inertial navigation systems

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Embodiment 1 Single set of inertial navigation system single channel digital quantity acquisition and processing

[0057] First, set the first-level cache A, the second-level cache B, and the third-level cache C through the cache setting unit, and the size of the first-level cache A can be set to 1024*1024=1048576 BYTE type storage spaces, that is, 1MB storage space; the size of the second-level cache B is set to be 64*1024=65536 BYTE type storage spaces, that is, the storage space of 64KB; the third-level cache C is a two-dimensional array, and the size of the third-level cache C is set to 1024*1024=1048576 storage spaces of BYTE type, that is, 1024 one-dimensional arrays, and the size of each one-dimensional array is 1024 bytes. Here, it is assumed that the total length of each data frame is not greater than 1024 bytes.

[0058] Set the write-read switch WriteReadDataSwitch of the first-level cache A.

[0059] Set the format of the communication frame through the com...

Embodiment 2

[0068] Embodiment 2 Acquisition and processing of multi-channel digital quantities of multiple sets of inertial navigation systems

[0069] Simultaneously test 4 sets of inertial navigation systems, and each set of inertial navigation systems has 2 digital outputs. The difference with embodiment 1 is:

[0070] First, through the cache setting unit, set 8 sets of caches, for each set of caches: set the first level cache A, the second level cache B and the third level cache C, the size of the first level cache A can be set to 1024* 1024=1048576 storage spaces of BYTE type, i.e. a storage space of 1MB; the size of the second-level cache B is set to be 128*1024=131072 storage spaces of a BYTE type, i.e. a storage space of 128KB; the third-level cache C is two Two-dimensional array, set the size of the third-level cache C to 1024*1024=1048576 BYTE type storage space, that is, 1024 one-dimensional arrays, and the size of each one-dimensional array is 1024 bytes, assuming that each ...

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Abstract

The invention provides a multi-channel digital quantity acquisition and processing anti-collision method and system of multiple sets of inertial navigation systems. According to the method, a cache isset into three levels, a size of the cache is dynamically set according to a data receiving frequency and a data size, a write-in and read-out switch of the first-level cache is set, when the first-level cache is not available, the collected data is stored in the second-level cache, framing processing is performed on the data read out from the first-level cache, and assembled data frames are written into the third-level cache. According to the method, a problem of a conflict between data acquisition and processing tasks is solved through multi-level cache dynamic creation; and meanwhile, multiple groups of mutually independent caches are created, and different groups of caches adopt a parallel working mode so that a data processing speed is increased, the problem of the conflict between the data acquisition and processing tasks during multi-path digital quantity output of multiple sets of inertial navigation systems is avoided, and test and production efficiency of the inertial navigation systems is greatly improved.

Description

technical field [0001] The invention belongs to the field of data processing, and relates to a multi-channel digital quantity collection and processing anti-collision method, in particular to a multi-channel digital quantity collection and processing anti-collision method for multiple sets of inertial navigation systems. Background technique [0002] After the development of the inertial navigation system is completed, the function and performance of the inertial navigation system are tested and verified through the test software running on the computer. The test software needs to complete the collection and processing of the digital data output by the inertial navigation system. The digital data mainly includes Network port data, serial port data, etc. When the test software tests multiple sets of inertial navigation systems at the same time, and each set of inertial navigation systems has multiple digital outputs, the amount of data collected by the test software is large,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042
CPCG05B19/0423G05B2219/24215
Inventor 陈留涛杨业明郭悦权晓蕾尹伟伟林渊王明东秦振汉
Owner 航天科工惯性技术有限公司
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