Impact measurement control instrument adopting DSP

Abstract

The invention discloses a digital signal processor (DSP)-based impulse measurement controlling instrument. A PC interface processing circuit is connected with a PC via an interface, a DSP data processing circuit is connected with the PC interface processing circuit and a programmable logic circuit respectively via corresponding data buses, the programmable logic processing circuit is connected with an analog-to-digital conversion circuit and a digital I/O circuit respectively via corresponding digital signal outgoing lines, the analog-to-digital conversion circuit is connected with an analog input conditioning circuit via an analog signal input outgoing line, and a power supply circuit provides DC power to each circuit. The invention has the advantages of high processing capacity, high precision, good real-time performance, and easiness for hardware expansion. Coordination processing is performed on the DSP and the programmable logic device via the DSP external bus on the basis of sharing bus resource, so as to optimize information computation and processing and hardware controlling resources. The invention is especially suitable for impulse measurement control, impulse collision experiments, transient impulse measurement analysis, control of impulse table and collision table, and other fields.

Description

technical field [0001] The invention relates to a shock measurement control instrument, in particular to a shock measurement control instrument using DSP. Background technique [0002] With the continuous improvement of the requirements for the dynamic performance, reliability and environmental adaptability of structures and products, technologies in the fields of impact measurement control, impact collision experiment, transient impact measurement analysis, impact table and collision table control have been greatly promoted. At the same time, higher and higher requirements are put forward for the performance of shock measurement and analysis equipment: in addition to the good accuracy of shock signal measurement and analysis; the response speed and real-time performance of shock measurement processing also put forward higher requirements. At the same time, since the traditional shock signal measurement and shock table control are realized through two independent devices, th...

AI Technical Summary

Problems solved by technology

Obviously, for the former, the limited internal resources and hardware control resources of the embedded processor will greatly limit the improvement space of its performance such as calculation accuracy and speed, so this hardware architecture cannot fully meet the application requirements in various fields of shock measurement, especially It is a field with fast shock and high response processing requirements such as shock collision experiment and transient shock measurement analysis.

At the same time, due to the contradictory and unified relationship between computing processing and hardware control and management resource allocation, the optimal allocation of resources also affects the improvement of impact signal processing performance and hardware scalability to a certain extent.

Although theoretically improving the performance of the embedded processor can improve the processing performance of the system to a certain extent, in practice it is limited to the design and manufacturing technology and cost performance of the embedded processor itself, and this improvement is also very limited.

For the latter, although the resources of the microcomputer are relatively sufficient to achieve high processing accuracy, the operating characteristics of the microcomputer system make the performance improvement in the processing speed of the shock response very limited, which cannot fully meet the needs of shock collision experiments and transient conditions. Application requirements in areas such as shock measurement analysis

[0005] In terms of the integration and intelligence of shock measurement and control instruments, with the development of manufacturing technologies such as electronic integration, people have begun to try the integration of shock measurement and analysis equipment and shock control equipment, and intelligent control design, but there is no comparison. mature solution

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