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Bus control system and method with sub-cycle high-frequency processing function

A technology of bus control and high-frequency processing, which is applied in the general control system, control/regulation system, program control, etc., and can solve the problems of insufficient high-frequency signal processing and too small bus cycle

Active Publication Date: 2021-12-03
深圳市软赢科技有限公司
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]Although the bus-type control scheme has many advantages such as large-scale deployment and flexible configuration, it is limited by the fact that the current bus cycle cannot be too small, so for high-frequency signal processing has a natural deficiency
For example, due to the bandwidth limitation of the current real-time bus, the processing capability of the controller, and the delay of bus communication, the frequency corresponding to most bus control cycles can only be 1K to several K, while in high-precision measurement and processing equipment, There is no lack of some input and output signal frequencies of several M, but the current bus-type controller and bus-type input and output module solutions are difficult to meet such requirements

Method used

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  • Bus control system and method with sub-cycle high-frequency processing function
  • Bus control system and method with sub-cycle high-frequency processing function
  • Bus control system and method with sub-cycle high-frequency processing function

Examples

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Embodiment 1

[0038] Subdivide the normal cycle into 1000 sub-cycles, so that the processing efficiency of each sub-cycle is 1000 times that of the normal cycle, so that when some input or output data that needs to be more subdivided and processed at high speed enters the system, it can be processed through the sub-cycles , no need to transmit and process fixedly according to the ordinary cycle of the bus like traditional bus input and output modules, which improves the frequency and precision of data processing.

[0039] It is mentioned in this embodiment: in the step that the real-time control kernel of the real-time operating system calls the sub-cycle processing unit to perform real-time processing, the sub-cycle processing unit includes a buffer unit, and the sub-cycle processing is performed after the buffer unit caches the sub-cycle data. Processing; the buffer unit mainly acts as a buffer for the input or output data set for sub-cycle processing. Since the data processing cycle is sm...

Embodiment 2

[0049] Subdivide the common cycle into 1500 sub-cycles, so that the processing efficiency of each sub-cycle is 1500 times that of the normal cycle, so that when some input or output data that needs to be more subdivided and processed at high speed enters the system, it can be processed through the sub-cycles , no need to transmit and process fixedly according to the ordinary cycle of the bus like traditional bus input and output modules, which improves the frequency and precision of data processing.

[0050] It is mentioned in this embodiment that the sub-cycle processing unit includes a buffer unit, and then the sub-cycle processing is performed after the buffer unit caches the sub-cycle data; the buffer unit mainly serves as a buffer for the input or output data set as sub-cycle processing Because the data processing cycle is small and the speed is fast, the amount of data processed by sub-cycles is very large in the same time, so setting the buffer unit to cache the data bef...

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Abstract

The invention provides a bus control system and method with a sub-cycle high-frequency processing function. The system comprises a real-time operating system and a non-real-time operating system which are installed at a PC end, and the real-time operating system and the non-real-time operating system carry out data exchange through a shared memory. An input and output module is also included, and the input and output module is connected to a real-time operating system through a real-time bus; a sub-cycle processing unit is arranged in a real-time control system of a PC end, and a programmable logic processing unit and a buffer processing unit are arranged in an input and output module so that cycle processing is carried out after preprocessing cycle setting is carried out on input and output in advance at a user application program end; and therefore, the effect of processing subdivided sub-cycle data can be achieved, and the bus type input and output module can simultaneously send output instructions with higher frequency and control precision and can also simultaneously receive input data with higher frequency and precision.

Description

technical field [0001] The invention relates to the technical field of motion control, in particular to a bus control system and method with a sub-period high-frequency processing function. Background technique [0002] The input and output module is generally used as a controller, especially a part of the hardware controller, to perform signal processing on external input and output devices. The bus-type control scheme includes the control system and input and output modules because of its large controllable scale, flexible configuration, distributed wiring and strong anti-interference ability. Wide range of applications. The bus type input and output module can collect and control the digital input and output, analog input and output, pulse width modulation and other signals in the device, and generally use the bus cycle as the minimum unit for signal processing. [0003] Although the bus-type control scheme has many advantages such as large-scale deployment and flexible...

Claims

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Application Information

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IPC IPC(8): G05B19/042
CPCG05B19/0423G05B2219/21063Y02P90/02
Inventor 李寅
Owner 深圳市软赢科技有限公司
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