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Solar energy power supply circuit for wireless sensor network node

A solar power supply and wireless sensor technology, applied in battery circuit devices, circuit devices, current collectors, etc., can solve the problems of low charging efficiency, complex solar charging and discharging protection circuits, and high energy consumption, so as to reduce the failure rate and its own energy consumption. High power consumption, high charging efficiency, and the effect of reducing self-consumption

Inactive Publication Date: 2013-01-09
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems of complex solar charge and discharge protection circuits, high energy consumption, and low charging efficiency of existing wireless sensor network nodes, the present invention provides a solar charge protection circuit and a storage battery discharge protection circuit that are simple and easy to implement and have low energy consumption.

Method used

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  • Solar energy power supply circuit for wireless sensor network node
  • Solar energy power supply circuit for wireless sensor network node
  • Solar energy power supply circuit for wireless sensor network node

Examples

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Embodiment Construction

[0019] figure 1 It is the overall block diagram of the solar charging and battery discharge protection circuit usually designed for WSN and sink node lead-acid battery, consisting of solar panel 1, charging protection circuit 2, battery 3, discharge protection circuit 4, DC-DC circuit 5 and load Node 6 is composed.

[0020] figure 2 It is the solar panel charging protection circuit. The solar panel 1 supplies power to the storage battery 3 through the charging protection circuit 2 . First, before connecting the battery 3, use a multimeter to measure the converted output voltage, adjust the resistance of the sliding rheostat W1 to control the voltage at the battery input terminal, and determine the charging protection threshold. Adjust the resistance of W2 to control the size of the battery trickle charge current. charging protection circuit, R 4 is the fuse resistor, Q 4, TL431, W 1 Form an adjustable voltage regulator to adjust the charging voltage, which can charge t...

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Abstract

The invention discloses a solar energy power supply circuit for a wireless sensor network node. The solar energy power supply circuit comprises a solar cell panel, a charging protection circuit, a storage battery, a discharging protection circuit, a DC (direct current)-DC circuit and a load, and is characterized in that the solar cell panel supplies power for the storage battery through the charging protection circuit in a constant voltage mode; the discharging protection circuit is connected with the storage battery in series, and is provided with a reference voltage, when the output voltage of a reference end of the storage battery achieves or exceeds the reference voltage, the storage battery supplies power for the load, and when the output voltage of the reference end of the storage battery is lower than the reference voltage, the storage battery stops supplying power for the load, and discharging protection is carried out; and the DC-DC circuit is connected to the discharging protection circuit in series. The charging protection circuit and the discharging protection circuit of the solar energy power supply circuit have complete functions and simple structures and are low in self power consumption, and the solar energy power supply circuit for the wireless sensor network node has a wide application range.

Description

[0001] technical field [0002] The invention belongs to the power supply technology in the field of wireless communication, and in particular relates to a storage battery charging and discharging protection circuit of a wireless sensor network (WSN) node solar power supply device. [0003] Background technique [0004] The wireless sensor network with modern significance has broad application prospects in the field of large-scale remote environmental monitoring due to its own characteristics. However, the power energy carried by the network nodes is limited, and the deployment area is large and the distance is long. It is unrealistic to replace the battery to supplement the energy. Using solar panels to charge the node battery has become one of the feasible methods to realize the continuous energy supply of the node. The charge and discharge protection circuit of the battery can not only ensure the service life of the battery, but also prolong the life cycle of the entire ...

Claims

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Application Information

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IPC IPC(8): H02J7/00
Inventor 臧建国刘文平闫述
Owner JIANGSU UNIV
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