Energy supply device and method for sensor node in wireless network
A sensor node, wireless network technology, applied in circuit devices, data exchange details, data switching current sources, etc., can solve the problems of sensor network energy efficiency not being modeled and quantified, not having standards, etc., to achieve flexible layout, The effect of reducing power supply costs
Inactive Publication Date: 2011-04-06
INST OF ELECTRONICS CHINESE ACAD OF SCI
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Problems solved by technology
However, so far, the energy efficiency of sensor networks has not been modeled and quantified, nor has a generally accepted standard, and further research is needed
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[0056] The present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that the described embodiments are only intended to facilitate the understanding of the present invention, rather than limiting it in any way.
[0057] Such as figure 1 The device provided by the present invention shown relates to the following:
[0058] The thick arrows in the figure represent energy flow, and the thin arrows represent control flow. Environmental energy is controlled by the energy management control module, which can supplement energy for the energy storage module 2 and the backup energy supply module 3; meanwhile, the energy management control module 4 can control the energy storage module 2 and the backup energy supply module 3 to supply power to the system. The energy management control module 4 monitors the energy states of the energy storage modules 2 and backup energy supply modules 4 at all levels, as a basis for control.
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The invention discloses a device and a method for providing energy to nodes of the sensors of wireless network. The device comprises an energy mining module, an energy storing module, a module for providing reserved energy and an energy managing and controlling module. The steps of the methods are as follows: the energy mining module is responsible for collecting energy from the environment; the energy storing module stores the energy collected from the environment by the energy mining module; the module for providing reserved energy provides energy supply when the energy from the environmentcan not satisfy the energy consumption of the system; the energy managing and controlling module is responsible for controlling the energy storing module and the module for providing reserved energy to provide energy to the system. The device and the method of the invention realize providing energy to nodes of the sensors of wireless network, can greatly extend the service life of the system usedfor providing energy to nodes of the sensors of wireless network, reduce cost and increase the flexibility of the arrangement of the nodes of the sensors of wireless network.
Description
technical field [0001] The invention belongs to the technical field of environmental energy utilization, and relates to an energy supply device and method for wireless sensor network nodes. Background technique [0002] The power supply of sensor network nodes based on battery power cannot be replaced or can be replaced at a high cost, resulting in energy consumption problems that directly affect the life cycle of the network. Methods for harvesting ambient energy can free low-power designs from the constraints of traditional power lines and batteries. [0003] Many systems, such as small wirelessly networked sensor nodes and low-cost calculators in the consumer market, have severe power constraints related to remote locations, cost considerations, the need for portability, and other factors. In addition, the general trend towards wireless communication has eliminated many wired cables in the system, so designers hope to make the system free from the shackles of power cords...
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IPC IPC(8): H04L12/10H02J9/00
Inventor 赵湛张玉国方震郭鹏
Owner INST OF ELECTRONICS CHINESE ACAD OF SCI