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Data sending method and data sending device

A technology for sending data and the sending end, which is applied in the field of communication, and can solve the problems that the way of sending data cannot reduce the interference of other electrical appliances, and the accuracy of sending data is low.

Inactive Publication Date: 2014-01-29
HANGZHOU JIANYUAN ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the embodiment of the present invention provides a method and device for sending data to solve the problems in the prior art that the way of sending data cannot reduce the interference caused by other electrical appliances and the accuracy of sending data is low

Method used

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  • Data sending method and data sending device

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Embodiment Construction

[0036]Embodiments of the present invention provide a method and device for sending data. According to the first current threshold and the second current threshold set at the sending end, when the power frequency current is in an increasing state, the power frequency current changes from the first current to During the time period when the threshold value increases to the second current threshold value, select the sub-time period to send data. When the power frequency current is in a decreasing state, within the time period when the power frequency current decreases from the second current threshold value to the first current threshold value , select a sub-time period to send data, wherein the absolute value of the first current threshold and the second current threshold is smaller than the peak value of the power frequency current, and the absolute value of the first current threshold and the second current threshold is equal to the peak value of the power frequency current The...

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Abstract

The invention discloses a data sending method and a data sending device, which are used for solving the problem of low data sending accuracy in the prior art. The method comprises the following steps that: if a power frequency current is determined to be in an increased state, a sending end selects a sub-time period, from a time period in which the power frequency current is increased from a first current threshold value to a second current threshold value, and sends the data; or if the power frequency current is not determined to be in the increased state, the sending end selects the sub-time period, from the time period in which the power frequency current is decreased from the second current threshold value to the first current threshold value, and sends the data, wherein absolute values of the first current threshold value and the second current threshold value are smaller than a peak value of the power frequency current, and the absolute value of a difference value between the absolute values of the first current threshold value and the second current threshold value and the peak value of the power frequency current is greater than a determined threshold value. In the embodiment of the invention, because the absolute values of the first current threshold value and the second current threshold value are smaller than the peak value of the power frequency current, interference generated by other electric appliances when the power frequency current is at a peak or a valley can be avoided by sending the data in the selected sub-time period, so that the data sending accuracy is improved.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for sending data. Background technique [0002] At present, a focus in the communication industry is to use the civil low-voltage power line carrier technology to carry the data of the civil watt-hour meter on the carrier, and automatically transmit it to the power bureau through the power line and the Internet to realize automatic meter reading. Since the frequency response of the power line has a strong blocking effect on the carrier in a specific frequency range, that is, it has a strong fading for the carrier in a specific frequency range, so the prior art uses Orthogonal Frequency Division Multiplexing (OFDM , Orthogonal Frequency Division Multiplexing) and civilian low-voltage power line carrier technology combined power line OFDM carrier system to send data. [0003] In the prior art, using the frequency selection function of OFDM techno...

Claims

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Application Information

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IPC IPC(8): H04B3/54
Inventor 郑清诒顾渝聪蒋学峰卢仰坚
Owner HANGZHOU JIANYUAN ELECTRONICS
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