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Self - powered micro system integrated from photovoltaic energy sources and nodes of sensors

A sensor node and self-powered technology, applied in photovoltaic power generation, current collectors, electric vehicles, etc., can solve problems such as short service life and manual maintenance, achieve low cost, prolong service life, and solve energy bottlenecks

Inactive Publication Date: 2007-05-09
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to overcome the shortcomings of short service life and manual maintenance of battery-powered sensor nodes in the prior art, and provide a self-powered, maintenance-free microsystem integrated with photovoltaic energy and sensor nodes

Method used

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  • Self - powered micro system integrated from photovoltaic energy sources and nodes of sensors
  • Self - powered micro system integrated from photovoltaic energy sources and nodes of sensors
  • Self - powered micro system integrated from photovoltaic energy sources and nodes of sensors

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Embodiment Construction

[0020] The self-powered microsystem of the present invention integrates photovoltaic energy and sensor nodes, which can realize the self-powered supply of the nodes, thereby prolonging the service life of the sensor network. The self-powered microsystem includes photovoltaic cells, lithium-ion batteries, energy management modules, and sensor nodes. As shown in Figure 1, when in use, the photovoltaic battery, lithium-ion battery, sensor node and energy management module are connected through the photovoltaic battery interface 1, lithium-ion battery interface 2, and sensor node interface 3, and the sensor can be realized by placing the system outdoors. The nodes work continuously.

[0021] The energy management module includes a charging circuit and a voltage stabilizing circuit. The working mode of the self-powered microsystem of the present invention is shown in Figure 2. Under the condition of sufficient light, the electric energy generated by the photovoltaic cell is stabil...

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Abstract

The system consists of the photo-volt battery (PV), the lithium ion batter (LI), the energy source management module (ESM) and the transducer node (TN). ESM includes all electrical ports used to connect PV, LI and TN. After PV, LI and TN being connected to the defined ends of ESM, PV produces the energy under enough illumination and supplies power to TN and charges simultaneously LI via ESM. In case the illumination is poor, LI supplies power for TN. The self-supplied micro-system integrated from PV and TN can extend TN working life without maintenance, i.e. replacing or charging batteries. Therefore, the invention solves the bottleneck problem of the energy source for TN.

Description

technical field [0001] The invention relates to a self-powered microsystem integrated with photovoltaic energy and sensor nodes. Background technique [0002] The wireless sensor network is composed of a large number of sensor nodes deployed in the monitored area, and the nodes communicate with each other to form a self-organized network system. When a sensor node detects information, the data is transmitted hop by hop along other nodes, routed to the sink node after multiple hops, and finally reaches the management node through the Internet or satellites. Users can send instructions through the management node to remotely control the sensor nodes to perform predetermined tasks. Each sensor node is a microsystem that integrates functions such as information collection, data processing and wireless communication. [0003] Wireless sensor networks have the characteristics of rapid deployment, self-organization, and strong concealment, and have unique technical advantages in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/35
CPCY02E10/566Y02E10/56
Inventor 李艳秋于红云尚永红
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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