Adaptive solar energy tracking method facing wireless sensor network

A wireless sensor and solar tracking technology, which is applied in the direction of instruments, position/direction control, non-electric variable control, etc., can solve the problems of unguaranteed illumination and complex environment for sensor network deployment, achieve good adaptability, improve effective energy gain, Effective energy for efficient results

Inactive Publication Date: 2012-02-01
INST OF SOFTWARE - CHINESE ACAD OF SCI
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Problems solved by technology

Second, the deployment environment of the sensor network in the wild is complex, and situations such as occlusion are unavoidable, and good lighting cannot be guaranteed

Method used

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  • Adaptive solar energy tracking method facing wireless sensor network
  • Adaptive solar energy tracking method facing wireless sensor network
  • Adaptive solar energy tracking method facing wireless sensor network

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Embodiment Construction

[0054] specific implementation plan

[0055] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0056] The solar tracking device consists of a solar panel, a lithium battery, a charging circuit, a solar bracket and a tracking motor. The solar panel is responsible for converting solar energy into electrical energy and storing it in the lithium battery; the tracking motor is the power device of the tracker, which is used to adjust the orientation of the solar panel; the solar bracket is used to connect the solar panel and the motor, and contains many rotating gears.

[0057] At the beginning of sunrise every day, the solar tracker performs initialization operations through two photosensitive elements in the horizontal direction, that is, during the initialization phase, the voltage difference generated by the photoresistor controls the rotation of the motor, so that the solar panel is facing the direct direction of...

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Abstract

The invention, which belongs to the wireless sensor network field, discloses an adaptive solar energy tracking method facing a wireless sensor network. The method comprises the following steps that: (1), an adjustment factor function 1(theta) is set; (2), initialization is carried out on a solar energy node; (3), initialization is carried out on an accumulator and a current deviated angle theta is recorded; (4), the solar energy node collects a current actual power value of a solar panel according to a set period and a current deviated angle theta is recorded; (5), the solar energy node calculates a power maximum value of the solar panel at a current sampling time; (6), a difference between the power maximum value of the current sampling time and an actual value is multiplied by a sampling period to obtain a result, which is captured to the accumulator; and it is determined whether the value of the accumulator exceeds a set threshold; (7), if so, the solar panel is rotated to a set angle, and then the steps from the step (3) to the step (6) are repeated; if not, the steps from the step (4) to the step (6) are repeated. According to the invention, a rotation number and rotation consumption of a motor can be effectively reduced, so that obtaining of effective energies will be substantially increased; besides, the method has good adaptability.

Description

technical field [0001] The invention relates to a solar tracking method, in particular to a wireless sensor network-oriented self-adaptive solar tracking method, and belongs to the technical field of wireless sensor networks. Background technique [0002] Wireless sensor network is a multi-hop wireless network system composed of a large number of sensor nodes in a self-organizing manner. Its purpose is to cooperatively sense, collect, process and transmit the monitoring information of sensing objects in the network coverage area, and report to users. Wireless sensor network integrates sensing technology, embedded technology, wireless network technology, distributed intelligent information processing and other technologies. It has the characteristics of large scale, low cost and flexible networking. It has been widely used in military, scientific research, industrial monitoring, medical and other fields. [0003] Long-term field monitoring is one of the important application...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D3/00
Inventor 朱红松刘伟皇甫伟孙利民
Owner INST OF SOFTWARE - CHINESE ACAD OF SCI
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