Radio energy transmission system and method

A wireless power transmission and energy transmission technology, applied in electromagnetic wave systems, electrical components, circuit devices, etc., can solve the problems of unbalanced power consumption of regional nodes, poor stability of wireless power transmission systems, and unbalanced power acquisition by master nodes. Improve energy utilization, facilitate energy management, compensate for unstable and non-sustainable power supply

Active Publication Date: 2013-01-09
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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AI Technical Summary

Problems solved by technology

Two-way wireless power transmission can be realized between regional master nodes, which solves the problem of poor stability of the wireless power transmission system caused by the unbalanced power acquisition of master nodes and unbalanced power consumption of regional nodes, and ensures the continuous and efficient energy of all nodes in the system supply

Method used

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  • Radio energy transmission system and method
  • Radio energy transmission system and method

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Embodiment Construction

[0046] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0047] The schematic diagram of the regional wireless power transfer system based on environmental energy harvesting is as follows: figure 1 shown. The entire system is divided into multiple areas, each of which contains a master node and multiple slave nodes; the master node transmits energy to the slave nodes in the area through magnetic resonance coupling to realize wireless energy transmission within the area; each area Two-way wireless power transmission is performed between master nodes through magnetic resonance coupling to realize inter-regional wireless power transmission.

[0048] The structural block diagram of the main node is as follows figure 2 shown. The master node includes an energy capture module, an energy storage module, an energy conversion module, an energy sending / receiving module, an energy management module and a wi...

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Abstract

The invention relates to a radio energy transmission system and method. The radio energy transmission system comprises a plurality of areas, wherein each area respectively comprises a main node and a plurality of auxiliary nodes. Each main node unidirectionally transmits energy to the auxiliary nodes in each area in a magnetic resonant coupling manner to realize radio energy transmission in the area. The main nodes in all the areas carry out bidirectional radio energy transmission by a magnetic resonant coupling manner to realize radio energy transmission among the areas. On one hand, the main nodes are used as sources of energy and used for capturing vibration energy, solar energy, heat energy and the like from the environment to provide energy for all the nodes; and on the other hand, each main node is used as one node of the radio energy transmission system to finish corresponding functions. The auxiliary nodes acquire energy from the main nodes to finish corresponding functions. The radio energy transmission system and method disclosed by the invention can realize energy coordination and allocation among all the main nodes according to the energy demand information of the nodes in the areas in different time intervals and achieves bidirectional radio transmission.

Description

technical field [0001] The invention relates to a wireless power transmission system and method. Background technique [0002] In recent years, wireless sensors have been widely used in industrial fields, and power supply is one of the bottlenecks restricting its application. Currently, batteries are mainly used as power sources for wireless sensors. Due to the short life of the battery, the limited energy storage, and the large size and mass compared to the powered device; moreover, the cost of replacing the battery in some applications is high and the process is complicated. The energy harvester can convert the energy existing in the environment, such as vibration energy, solar energy, heat energy, etc., into electrical energy, and become a new type of power source that can replace batteries and be self-sustaining. However, solar cells can convert light energy into electricity to power wireless products and MEMS devices, but it can only be used in environments with light...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J17/00H02J50/12
Inventor 张超刘国强郭亮徐小宇宋显锦
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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