Patent ID: 9035751
Filing Date: 2015-05-19
Classification: G08C,H04B

Abstract:
1. A communication power line status detecting method: comprising steps of: transmitting a communication indicator signal by a transmission device through a communication power line; obtaining the communication indicator signal by a receiving device from the communication power line; converting the communication indicator signal into a time domain by the receiving device; and analyzing a signal reflection and transmission status of the communication indicator signal transmitted via the communication power line by using a time domain transmission analyzing method by the receiving device and generating a line status information corresponding to the communication power line, wherein the signal changes of the communication indicator signal transmitted in the communication power line is indicated as r(t)=s(t)*h(t)+n(t), wherein s(t) is the signal pattern of the communication indicator signal transmitted by the transmission device, h(t) is the system pulse response of the communication power line, n(t) is the noise integrated with the communication indicator signal transmitted in the communication power line, r(t) is the signal pattern of the communication indicator signal when it is received by the receiving device, wherein the signal pattern s(t) transmitted by the transmission device comprises a step function signal u(t), the receiving device uses the time domain transmission analyzing method to analyze the signal pattern of the communication indicator signal received by the receiving device in order to generate the line status information, the line status information can be indicated as TDT=u(t)*h(t).