Novel portable multipath switch quantity signal detector

Abstract

The invention provides a novel portable multipath switch quantity signal detector. The signal detector is advantageous in that the signal detector is high in measurement precision and stable in performance and works reliably. The jump timing precision reaches 20 [mu]s. The signal detector comprises a signal input module, a JTAG socket, a multipath switch quantity signal detection board card, a PCI bridge chip, a power circuit and a PC104PLUS port. The signal input module comprises a signal processing circuit and a signal isolation circuit connected with the signal processing circuit. An IO port, a JTAG port, an HPI port, a signal acquisition module, a signal detection module and a jump state and timing data storage module. The output end of the signal acquisition module is connected with the input end of the signal detection module. The output end of the signal detection module is connected with the input end of the jump state and timing data storage module. The signal isolation circuit is connected with the multipath switch quantity signal detection board card through the IO port. The multipath switch quantity signal detection board card is connected with the PCI bridge chip through the HPI port. The PCI bridge chip is connected with the PC104PLUS port.

Description

technical field [0001] The invention belongs to the technical field of switch detection and measurement, and in particular relates to a novel portable multi-channel switch signal detector. Background technique [0002] In the process of modern industrial production and scientific research, it is often necessary to detect the change of switching signal, and then judge the working status, influencing factors, abnormal factors and other information according to the relationship (usually time relationship) of each switching signal change. For example, in industrial measurement and control systems, it is necessary to detect switching signals generated by electromagnetic relays, auxiliary switches and other equipment, and make judgments to obtain high-precision action sequence resolution. Some data acquisition cards currently on the market can meet the basic switching signal measurement requirements, but there is no special application for parallel real-time detection and timing o...

AI Technical Summary

Problems solved by technology

At present, some data acquisition cards on the market can realize the basic switching signal measurement requirements, but there is no special application for the parallel real-time detection and timing of dozens of switching signals.

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