Configurable multi-channel analog and digital signal acquisition system

Abstract

The invention relates to a configurable multi-channel analog and digital signal acquisition system, and belongs to the technical field of multi-channel analog and digital signal acquisition. The configurable multi-channel analog and digital signal acquisition system mainly comprises a PSoC (programmable system on a chip) chip-based Ethernet communication board, and one or more PSoC chip-based sensor acquisition boardswhich are connected through an I2C bus, wherein the Ethernet communication board controls the sensor acquisition boards for data acquisition through the I2C bus, reads acquisition results of the sensor acquisition boards through the I2C bus, and uploads acquired sensor data in real time by using a TCP (transmission control protocol) protocol through Ethernet, thus achieving remote monitoring of multiple sensors. Based on the advantages of a PSoC, the configurable multi-channel analog and digital signal acquisition system has the advantages of high integration, configurability, expandability, a large number of signal acquisition channels of a single chip, data transmittability to a remote computer and the like.

Description

technical field [0001] The invention belongs to the technical field of multi-channel analog and digital signal acquisition, in particular to a configurable multi-channel analog and digital signal acquisition system based on a programmable on-chip system. Background technique [0002] The development of the signal acquisition system has gradually increased the number of sensors in the system. If there are too many sensors in a system, limited by the resources of general single-chip microcomputers, it is necessary to cascade multiple single-chip microcomputers to complete the task, which increases the complexity of the system and reduces the System integration and reliability. The multi-channel signal acquisition system based on FPGA makes full use of the advantages of FPGA I / O ports and programmable, and can complete multi-channel signal acquisition with a single core. In the system, an external analog multiplexer and an analog-to-digital converter are required to realize sy...

AI Technical Summary

Problems solved by technology

[0005] 1. The above-mentioned patented hardware consists of many modules and the system is relatively complicated;

[0006] 2. The above-mentioned patent can only measure the simulated gas mass flow signal, and the number of channels that can be collected is determined, not configurable, and has poor versatility;

[0007] 3. The collection results of the above patents cannot be transmitted remotely, and the collection results must be obtained on site

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