Power line carrier communication test network with flexible transformation topological structure

Abstract

The invention discloses a power line carrier communication test network with a flexible transformation topological structure for detecting the communication function of a power line carrier communication device. The power line carrier communication test network comprises an industrial personal computer unit, a switch, a serial port server unit, a signal noise injection unit, a program control impedance conversion unit and a test network topological structure unit. The industrial personal computer unit performs parameter configuration on each program control device and performs statistical analysis on test data. The switch and the serial port server unit establish a connection between each program control device and an industrial personal computer in the test network. The signal noise injection unit simulates the noise interference in an actual application scene and performs spectrum monitoring on the noise interference. The program control impedance conversion unit simulates the impedance characteristics of the actual application scene. The test network topological structure unit simulates the topological structure of the actual application scene. The power line carrier communication test network can realize the flexible transformation of the topological structure, the communication channel is more stable, and the test result is closer to the reality.

Description

technical field [0001] The invention relates to the communication field, in particular to a power line carrier communication test network with flexible topological structure transformation. Background technique [0002] Broadband power line carrier communication technology is a brand-new communication technology based on power line transmission. Since its transmission medium is power line, it is very suitable for the field of low-voltage power consumption information collection. Therefore, this technology has been highly valued by the State Grid, and together with various powerful enterprises and institutions, they have discussed and formulated the communication protocol of the State Grid's broadband power line carrier. Various manufacturers have successively launched products based on broadband carrier communication technology. [0003] Because the power line is different from other dedicated communication lines, the channel characteristics are very unsatisfactory, and it i...

AI Technical Summary

Problems solved by technology

[0005] 1. The networking method is too simple to change the networking topology

[0006] 2. The communication channel is unstable, and it is easy to change the signal attenuation due to external interference, resulting in communication interruption or change of node routing level

[0007] 3. It is difficult to artificially inject noise signals. Although we can construct various noise signals through vector signal sources, since the broadband power line carrier uses the power line medium to transmit signals, it is impossible to inject the constructed noise signals

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