Veneer wave recorder capable of passing through parallel bus integrated distribution system

Abstract

The invention relates to a veneer wave recorder capable of passing through a parallel bus integrated distribution system, belonging to the category of a dynamic recording device. The veneer wave recorder consists of a front end circuit, a DSP, an ARM and an interface circuit thereof, an ISP chip and a parallel bus, wherein the front end circuit comprises a signal conditioning circuit, an analog-to-digital conversion circuit, an optoelectronic isolating circuit and a digital locking and storing circuit; the DSP is connected with the ARM by an HPI bus interface; a decoding circuit, a read-writecircuit, a communication circuit, a synchronous clock circuit, a resetting circuit, a timing control circuit and the like are arranged in the ISP chip; the parallel bus is matched with a system mother board bus, and comprises a clock bus, a synchronous control wire and a state wire, a timing bus and a resetting bus; in addition, the veneer wave recorder is also integrated with a RS485 serial portwith token control, a RS422 serial port, an SPI synchronous serial port, a network, a CF blocking port and the like. The veneer wave recorder not only can be taken as a minitype wave recorder for independent work, but also can be taken as the wave recorder to be plugged onto a system mother board for an integrated distribution wave recording device. The integrated distribution wave recording device has the advantages of high capacity, wide passband and reliability, and the like, thus being innovative.

Description

Technical field [0001] The invention belongs to the computer application field, and relates to a high-speed measurement recording system processed by a computer, in particular a parallel distributed dynamic large-capacity wave recording device based on an embedded system. Background technique [0002] The dynamic recorder is a digital high-speed measurement and recording instrument. The instrument can perform uninterrupted high-speed synchronous tracking and sampling detection of multiple fast-changing related signals externally connected to capture the instantaneous abnormality, sudden change or occurrence of a certain specific event of the detected signal, and then perform all related signals as required Perform real-time dynamic recording and analysis. Because this instrument can track and record multi-parameter systems for a long time, and automatically capture and find faults or abnormalities in the detected system, it has been widely used in scientific research and various...

AI Technical Summary

Problems solved by technology

Regardless of whether the traditional external industrial computer is used as the background machine, or the embedded computer based on DSP or ARM is used as the background machine in order to improve reliability, the background machine is always the bottleneck of the system.

[0004] 2. The overall performance is restricted by the system structure and the performance of the background machine

The first is the limitation of system capacity

When the number of measurement channels increases and the data flow increases to a certain extent, the communication between the front-end and back-end machines becomes blocked due to bandwidth limitations

Secondly, the computing power of a single background computer is limited

When the amount of data increases to a certain extent, a single computer cannot complete the tasks of real-time calculation and wave recording

The third is that data remote transmission is affected by bandwidth

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