Multiway voltage signal monitoring device

Abstract

The invention provides a multiway voltage signal monitoring device. The voltage information monitoring device comprises a hardware part and a software part, wherein a main controller in the hardware part controls the output frequency of a DDS module, the single-ended / differential sampling mode and voltage selection range of an A / D acquisition module, channels in a multiway switch module and the like; meanwhile, the main controller receives data acquired by the A / D acquisition module, and transmits the data to an output interface module after being processed; the data is transmitted by the data output interface module to a PCI bus; a multiway voltage attenuation network attenuates the signal input by the input interface module and transmits the signal to the multiway switch; a power supplymodule provides voltage for the system; and the software part comprises main controller software and a driver, and is mainly used for controlling data acquisition, processing and transmission. The voltage information monitoring device has the characteristics of high reliability, strong flexibility, friendly man-machine interface and the like, and can be operated in severe environment. The device of the invention can be used for effectively acquiring, processing, transmitting and monitoring multiway voltage signals.

Description

technical field [0001] The invention belongs to the technical field of detection. In particular, it relates to a multi-channel voltage signal monitoring device. Background technique [0002] The accuracy of the power supply voltage information detection equipment currently used is not high. Some of them only use light-emitting diodes to detect whether there is such a voltage. Even with a fixed frequency and a small number of channels, it cannot perform real-time power supply voltage data collection well, nor can it exchange data with the processor interface that receives the data. At the same time, these data collection requires multiple devices to work together. It has a certain impact on modern information detection, and even leads to the inability of specialized data processing equipment to process the collected data correctly and effectively. [0003] The Chinese patent literature database discloses an invention patent titled "A Monitoring Device for Voltage Input and...

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