Transducer able to implement Ethernet communication and with redundent power supply provided by network

Abstract

The invention belongs to communication technique especially relates to transducer suitable for Ethernet communication. The transducer includes flip-latch, program storage, data storage, A / D converter, circuit of programmable logic array, microprocessor and RJ45 interface. The characteristics of the invention are as follows: the microprocessor is connected to the controller of receiving and transmitting Ethernet signal that is connected to the RJ45 interface; the RJ45 interface is also connected to redundant DC power source that is connected to DC / DC voltage converter; the DC / DC voltage converter is connected to flip-latch, program storage, data storage, A / D converter and microprocessor respectively; the transducer converts signal sampled by sensor into engineering workload that can be transferred through Ethernet to other Ethernet devices according TCP (UDP) / IP protocol; morecover the redundant DC power transferred on cable can be acted as working power supply. The invention possesses features of reasonable wiring, safe and reliable operation.

Description

technical field [0001] The invention belongs to the technical field of electrical communication, in particular to a transmitter capable of realizing Ethernet communication and powered by redundant network. Background technique [0002] In the background technology, the transmitter can usually only convert the sampled sensor signal into a digital signal, and after intelligent processing, transmit it to other automation equipment through an analog signal or a digital signal (non-Ethernet signal). The transmitter mainly includes a latch, a program memory, a data memory, an A / D converter, a programmable logic array circuit, and a microprocessor, and the transmitter cannot be directly connected to an Ethernet network for use. However, the Ethernet connection method cannot transmit both the Ethernet communication signal and the DC power supply for the transmitter through the same cable, that is, the so-called "bus power supply", which brings inconvenience to w...

AI Technical Summary

Problems solved by technology

However, the Ethernet connection method cannot transmit both the Ethernet communication signal and the DC power supply for the transmitter through the same cable, that is, the so-called "bus power supply", which brings inconvenience to wiring and network maintenance, and is harmful to industrial sites. For equipment such as meters, additional power supplies are required, which not only greatly increases the cost of cables and wiring, but also affects the safety and reliability of the system

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