Frequency division multiple access multi-target parallel wireless energy transmission method and device thereof

A technology of wireless energy transmission and frequency division multiple access, applied in the direction of circuit devices, electrical components, etc., can solve the problems of difficult guarantee, no need for charging equipment interference, long time for multi-target beam optimization, etc., and achieve the effect of high average power

Active Publication Date: 2018-10-19
深圳市宇能无线技术有限公司
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Problems solved by technology

However, none of the above-mentioned TR energy transmission schemes pointed out how to solve the problem of multi-target energy transmission, especially the problem of multi-target parallel energy transmission for charging multiple users at the same time
[0007] An invention patent with application number 201710058090.3 discloses an indoor wireless energy transmission system and a wireless energy transmission method. The power transmission array composed of antennas, single-frequency operation, m

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  • Frequency division multiple access multi-target parallel wireless energy transmission method and device thereof
  • Frequency division multiple access multi-target parallel wireless energy transmission method and device thereof
  • Frequency division multiple access multi-target parallel wireless energy transmission method and device thereof

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Embodiment Construction

[0044] Embodiments of the present invention will be described below with reference to the drawings. Elements and features described in one drawing or one embodiment of the present invention may be combined with elements and features shown in one or more other drawings or embodiments. It should be noted that representation and description of components and processes that are not related to the present invention and known to those of ordinary skill in the art are omitted from the drawings and descriptions for the purpose of clarity.

[0045] The present invention provides a frequency division multiple access multi-target parallel wireless energy transmission method and device, the system structure diagram of the device is as follows figure 1 shown. The system of this example includes 4 powered antennas (numbered EC 1 ~EC 4 , and the corresponding frequency points are f 1 =2.3GHz, f 2 =2.4GHz,f 3 =2.5GHz,f 4 =2.6GHz) and 30 TR antennas (No. TR 1 ~TR 30 ). All antennas a...

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Abstract

The invention discloses a frequency division multiple access multi-target parallel wireless energy transmission method and a device thereof. The method comprises the steps of successively transmittingsingle-frequency charging request signals with frequency of f1-fM by M energy receiving targets to a time reversal mirror (TRM) which is composed of N TR antennae, and correspondingly the TRM can record M sets of acquiring signals; then performing time reversal processing (simplified to phase conjugation for realizing on the condition of single frequency) on M sets of TRM acquiring signals with frequency of f1-fM, thereby obtaining M sets of TRM returning signals; and finally, combining the M sets of TRM returning signals for obtaining one set of multi-frequency TRM energy transmission signals, and radiating the signal out by the TRM, namely generating a multi-point TR focusing field by means of a plurality of point frequencies, and simultaneously transmitting energy to the M energy receiving targets. The method and the device according to the invention can enable each energy receiving target occupy one independent energy transmission frequency point, thereby successfully setting a problem of parallel energy transmission to a plurality of users without mutual interference.

Description

technical field [0001] The method relates to wireless energy transmission technology, in particular to a frequency division multiple access multi-target parallel wireless energy transmission method and device. Background technique [0002] Wireless energy transmission is a research frontier in the field of energy transmission, and has attracted much attention from the scientific and industrial circles in recent years. Existing wireless energy transmission technologies mainly include electromagnetic induction energy transmission, electromagnetic resonance energy transmission and electromagnetic wave energy transmission. [0003] Both electromagnetic induction and electromagnetic resonance energy transmission technologies exchange wireless energy through the transceiver coil. The transmission distance is generally smaller than the diameter of the coil and is only suitable for short-distance charging. The main applications are charging pads for mobile phones, MP3 and other mobi...

Claims

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Application Information

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IPC IPC(8): H02J50/20H02J50/40H02J50/80
CPCH02J50/20H02J50/40H02J50/80
Inventor 赵德双李涛徐新松
Owner 深圳市宇能无线技术有限公司
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