An integrated device that combines power line carrier communication and fault detection and location functions
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A technology of power line carrier and fault detection, which is applied in the direction of distribution line transmission system, line transmission monitoring/testing, electrical components, etc. It can solve problems such as fault information transmission and information transmission medium damage, and achieve the effect of eliminating interference
Active Publication Date: 2021-04-06
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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[0009] (3) When the power line between the PLC transmitting node and the receiving node fails and the information transmission medium is damaged, it will not be possible to transmit the fault information to the monitoring terminal through PLC technology for timely fault analysis and processing
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[0054] Some key technologies involved in the present invention will be described in detail below in conjunction with the accompanying drawings to support the claims.
[0055] figure 1 Schematic diagram of the overall architecture of an integrated device that integrates power line carrier communication and fault detection and location functions. In the transmitter 1 of the integrated device, the signal source signal collected by the signal collector 9 is input into the fault detection carrier signal generation module 19 in the fault detection carrier signal generation and separation subsystem 3 of the transmitter by using the UART23 of the transmitter, and a signal with a period is generated. The characteristic pseudo-random sequence and sine wave are used as fusion spreading code and fusion modulation code respectively. The source signal is periodically spread and modulated to generate a detection carrier modulation signal, which can be used as a carrier signal to transmit in...
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Abstract
The invention discloses an integrated device that integrates power line carrier communication and fault detection and positioning functions, including a fault detection carrier signal generation and separation subsystem at an integrated transmitter, a DA module, an AD module, a conditioning circuit, an isolation coupler, and a wireless communication module. , power management module, and the fault detection carrier signal receiving and separation subsystem of the integrated receiver, AD module, conditioning circuit, isolation coupler, wireless communication module, and power management module. The integrated transmitter generates periodic fused spreading codes and fused modulation codes, so that the carrier signal has fault detection capabilities while transmitting, and comprehensively considers the location of the fault, using two technologies of power line carrier communication and wireless communication to analyze the fault information Through transmission, the integration of power transmission, data transmission, and fault diagnosis is realized, the reliability and maintainability of power transmission and communication systems are improved, and the multi-functional, miniaturized, and low-cost design of the detection device is realized.
Description
technical field [0001] The invention relates to an integrated device and method that integrates functions of power line carrier communication and fault detection and positioning, and belongs to the technical field of carrier communication. Background technique [0002] In aerospace and vehicle systems, in order to ensure the high reliability of the system, it is necessary to monitor and detect multiple parts of the entire system. Due to hundreds of measurement parameters, a large number of sensors and actuators are required, correspondingly requiring a large number of data transmission lines; at the same time, the reliance on engine control and transportation management systems is increasing, and the The increase in the use of service and entertainment systems inevitably leads to a large number of cables in aerospace and vehicle delivery systems, heavy weight, and complex distribution and crossing, which reduces the delivery efficiency. In order to solve this situation, Powe...
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