Multi-channel collecting and editing transmitting system

Abstract

The invention provides a multi-channel collecting and editing transmitting system. High-precision and high-reliability acquisition can be finished; a data acquisition process is simplified, demarcation and test acquisition efficiency is improved, and requirements of a remote data communication system, industrial field application and the like are met. The multi-channel collecting and editing transmitting system comprises a connector, an operational amplifier follower, an analog switch, an AD converter, an FPGA module, an Ethernet data transmitting module, an isolation transformer and RJ45, wherein the connector serves as a sensor and is connected with the operational amplifier follower; the operational amplifier follower is connected with the analog switch and is connected with the AD converter through operational amplifier following and partial voltage following; a signal output of the connector is connected with the FPGA module; a signal output end of the AD converter is connected with the FPGA module; the FPGA module is connected with the Ethernet data transmitting module through a bus interface; the Ethernet data transmitting module is integrated with a TCP / IP core, a microcontroller and an Ethernet physical layer; the Ethernet physical layer is connected with the isolation transformer and communicates with the isolation transformer; and the isolation transformer is connected with the RJ45.

Description

technical field [0001] The invention belongs to the technical field of Ethernet data acquisition and transmission, and in particular relates to a multi-channel acquisition, editing and transmission system. Background technique [0002] In traditional sensor calibration experiments, a large amount of data needs to be collected, transmitted, processed and stored. RS232 serial communication is often used to exchange data and information, which is not only slow, but also has a single hardware connection mode. With the rapid development of industrial automation equipment, the requirements for data acquisition reliability, real-time performance and control accuracy are also increasing. How to improve the performance of data acquisition and transmission has become a research hotspot. Compared with transmission methods such as RS232 and RS485, which are limited by transmission distance and speed, Ethernet has the advantages of good compatibility, high communication speed, long trans...

AI Technical Summary

Problems solved by technology

[0002] In traditional sensor calibration experiments, a large amount of data needs to be collected, transmitted, processed and stored. RS232 serial communication is often used to exchange data and information, which is not only slow, but also has a single hardware connection mode.

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