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Electric power line interference signal extraction and synchronous playback device

A technology of interference signal and synchronous playback, applied in distribution line transmission systems, electrical components, wired transmission systems, etc., can solve the problem of inability to collect and analyze low-voltage power line characteristics, and achieve the effect of ensuring time domain correlation

Inactive Publication Date: 2016-12-14
STATE GRID JIANGXI ELECTRIC POWER CO LTD RES INST +2
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Problems solved by technology

Existing equipment is difficult to restore the real interference environment on site, and it is impossible to comprehensively and effectively collect and analyze the characteristics of low-voltage power lines

Method used

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  • Electric power line interference signal extraction and synchronous playback device
  • Electric power line interference signal extraction and synchronous playback device
  • Electric power line interference signal extraction and synchronous playback device

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Embodiment Construction

[0021] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples.

[0022] refer to figure 1 and figure 2 As shown, the present invention provides a power line interference signal extraction and synchronous playback device, including a signal acquisition module, a signal playback module, a signal processing module, a signal storage module, a mode control module, a network communication module, a clock generation module and a control output module .

[0023] The received side signal is collected by the signal acquisition module and transmitted to the signal processing module for processing. The signal processing module stores the processed signal in the signal storage module and transmits it to the signal playback module, which is generated by inputting the trigger signal through the mode control module The clock signal controls the signa...

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Abstract

The invention discloses an electric power line interference signal extraction and synchronous playback device. The device is composed of a signal collection module, a signal playback module, a signal processing module, a signal storage module, a mode control module, a network communication module, a clock generation module and a control output module. Tested signals are collected by the signal collection module and are transmitted to the signal processing module for processing. The signal processing module stores the processed signals in the signal storage module and transmits the processed signals to the signal playback module. Triggering signals are input through the mode control module, so that the signal playback module is controlled by generated clock signals to output playback signals. The mode control module is connected with a network port through the network communication module. The mode control module is also connected with the control output module. The control output module is used for controlling output of state indication signals. Isolated sampling and high fidelity playback for non-working frequency signals on an electric power line are realized. The device can be applied to detection of a carrier communication function and an anti-interference capability test of a communication metering function of a meter.

Description

technical field [0001] The invention relates to a power line interference signal extraction and synchronous playback device, which belongs to the technical field of power carrier communication. Background technique [0002] Low power line carrier communication occupies an important position in the downlink channel of the power consumption information collection system. It has the advantages of low construction cost and no operating cost. Low-voltage power lines have dynamic and time-varying characteristics such as high attenuation, strong interference, and variable impedance structure for carrier meter reading, and the on-site channel environment is harsh. Carrier communication uses the power line as the transmission channel, and the interference signal of the power grid has a serious impact on the communication process, resulting in a low success rate of meter reading and a low data transmission rate in the existing carrier communication. Extracting and replaying the netwo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B3/46H04B3/54H04B3/487
CPCH04B3/54H04B3/46H04B3/487H04B3/542
Inventor 邓高峰张春强赵震宇朱亮郑振洲俞林刚张峰刘晶晶
Owner STATE GRID JIANGXI ELECTRIC POWER CO LTD RES INST
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