Wireless sensor mixed energy collection device and operating method

A wireless sensor and mixed energy technology, applied in the field of wireless sensing, can solve the problems of reliable operation of nodes and only stop working

Active Publication Date: 2018-08-17
GUANGXI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current wireless sensor power supply device can only collect energy from a single environmental energy source. When the energy source in the environment where the node is located is lacking (for example, the photovoltaic battery can only stop working at night), the node cannot work reliably without stopping

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  • Wireless sensor mixed energy collection device and operating method
  • Wireless sensor mixed energy collection device and operating method
  • Wireless sensor mixed energy collection device and operating method

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Embodiment Construction

[0095] The scheme of the present invention will be further described in detail below according to the embodiments and the accompanying drawings. The examples described are shown in the accompanying drawings, and the following embodiments and descriptions with reference to the accompanying drawings are exemplary and are only for explaining the present invention and are not to be construed as limiting the present invention.

[0096] Hybrid Energy Harvesting Device Embodiments for Wireless Sensors

[0097] The embodiment of the hybrid energy harvesting device of the present wireless sensor is as figure 1 Shown, including solar energy harvesting subsystem and wind energy harvesting subsystem, as well as central processor, pulse width modulator (PWM) and energy storage capacitor. The central processing unit of this example is MSP430 chip.

[0098] The wind energy collection subsystem in this example includes a wind generator, a rectifier, a boost converter, and a wind energy stor...

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Abstract

The invention discloses a wireless sensor mixed energy collection device and an operating method. The device comprises solar energy and wind energy collection subsystems, a central processing unit, aPWM (pulse width modulator) and an energy storage capacitor. The central processing unit controls the two subsystems, and collected solar energy and wind energy are stored in the energy storage capacity to supply power to wireless sensor nodes. The operating method includes that a photovoltaic cell and a wind power generator convert solar energy and wind energy into electric energy respectively tostore in a solar energy storage module and a wind energy storage module, and stored electric energy reaching a maximum value is outputted to the energy storage capacitor; the central processing unitadopts a fuzzy logic control method according to output voltage of the photovoltaic cell to enable the photovoltaic cell to operate at a maximum power point, and the central processing unit adopts a local optimization method according to current power of the wind power generator to adjust the rotating speed of the wind power generator so as to enable the wind power generator to operate at a maximum power point. Solar energy and wind energy are collected at the same time to supply power to a wireless sensor network, and continuity and reliability in operation are realized.

Description

technical field [0001] The invention belongs to the technical field of wireless sensing, and in particular relates to a hybrid energy collection device and an operating method of a wireless sensor. Background technique [0002] In recent years, with the development of science and technology, the popularity of micro-electromechanical systems, system-on-chip, wireless communication and low-power embedded, the application range of wireless sensor networks has become more and more extensive. [0003] Energy is necessary for wireless sensor networks, and it has also become one of the core issues in the research of wireless sensor networks. The existing energy collection methods for wireless sensors are all in a single way. For example, some schemes use photovoltaic cells to collect solar energy to supply power to wireless sensor nodes, while others use wind generators to collect wind energy for power supply. [0004] In order for the wireless sensor network to continue to work n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38H02J7/35H02J7/24G06F17/50
CPCH02J3/385H02J3/386H02J7/24H02J7/35G06F30/20H02J2203/20Y02E10/56Y02E10/76
Inventor 何华光刘人彰叶进李陶深
Owner GUANGXI UNIV
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